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features = ["codec"] } diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000000..ed3101d746 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,226 @@ +use std::{ + pin::Pin, + task::{Context, Poll}, +}; + +use bytes::{Bytes, BytesMut}; +use futures::{Sink, SinkExt}; +use pin_project::pin_project; +use thiserror::Error; +use tokio::net::TcpStream; +use tokio_util::codec::{BytesCodec, FramedWrite}; + +// Idea for multiplexer: + +trait Channel { + fn into_u8(self) -> u8; + fn inc(self) -> Self; +} + +// For multiplexer, simply track which is the active channel, then if not active channel, return not +// ready. How to track who wants to send something? Do we need to learn how waker's work? + +// Quick-and-dirty: Use streams/FuturesUnorded or some other sort of polling mechanism (i.e. create +// a Stream/Sink pair for every `Channel`, allow taking these?). + +// Not having extra handles, simply ingest `(chan_id, msg)` -- does shift the burden of parallizing +// onto the caller. We can figure out some way of setting a bool (or a waker?) for the active +// channel (and registering interest), then waiting until there are no more "active" channels +// between the current pointer and us. We get our slot, send and continue. +// +// The actual Sink would take tuples in this case. Still would need to guard access to it, so maybe +// not a good fit. Note, we do not expect backpressure to matter here! + +// Alternative: No fair scheduling, simply send ASAP, decorated with multiplexer ID. +// What happens if two unlimited streams are blasting at max speed? Starvation. + +// Synchronization primitive: Round-robin number/ticket generator? + +// Potentially better idea: +trait SinkTransformer { + type Input; + type Output; + type Error; + + fn push_item(&mut self, item: Self::Input) -> Result<(), Self::Error>; + + fn next_item(&mut self) -> Result, Self::Error>; +} + +struct FrameSink { + sink: S, + transformer: T, +} + +#[derive(Debug, Error)] +enum FrameSinkError +where + S: Sink, + T: SinkTransformer, +{ + #[error("sink failed")] + SinkFailed(#[source] >::Error), + #[error("transformer failed")] + TransformerFailed(#[source] ::Error), +} + +impl Sink for FrameSink +where + T: SinkTransformer, +{ + type Error = FrameSinkError; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + todo!() + } + + fn start_send(self: Pin<&mut Self>, item: T::Input) -> Result<(), Self::Error> { + todo!() + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + todo!() + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + todo!() + } +} + +// CHUNKER + +const CHUNKER_CHUNK_SIZE: usize = 4096; + +#[pin_project] +struct Chunker { + chunk_size: usize, + data_buffer: Option, + #[pin] + sink: S, + next_chunk: u8, + chunk_count: u8, +} + +impl Chunker { + fn new(sink: S, chunk_size: usize) -> Self { + todo!() + // Chunker { + // sink, + // data_buffer: None, + // bytes_sent: 0, + // header_sent: false, + // chunk_size, + // } + } +} + +impl Chunker { + fn make_progress_sending_chunks(&mut self) {} +} + +impl Sink for Chunker +where + S: Sink, +{ + type Error = >::Error; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + if self.data_buffer.is_none() { + let this = self.project(); + + // Report ready only when our data buffer is empty and we're ready to store the next + // header in the underlying sink. + this.sink.poll_ready(cx) + } else { + Poll::Pending + } + } + + fn start_send(self: Pin<&mut Self>, item: Bytes) -> Result<(), Self::Error> { + let chunk_count = item.len() + self.chunk_size - 1 / self.chunk_size; + + // TODO: Check if size exceeds maximum size. + + self.chunk_count = chunk_count as u8; + self.next_chunk = 0; + self.data_buffer = Some(item); + + // TODO: Use statically allocated BytesMut to avoid heap allocations. + let header = Bytes::copy_from_slice(&[self.chunk_count]); + + // Move header into the underlying sink. + let this = self.project(); + this.sink.start_send(header)?; + + Ok(()) + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + // TODO: Ensure zero-sized data is handled correctly. + + match self.data_buffer { + Some(data_buffer) => { + // We know we got more data to send, so ensure the underlying sink is ready. + { + let this = self.project(); + match this.sink.poll_ready(cx) { + Poll::Ready(Ok(())) => { + // Alright, let's go! + } + Poll::Ready(Err(e)) => { + return Poll::Ready(Err(e)); + } + Poll::Pending => { + return Poll::Pending; + } + } + } + + let chunk_start = self.next_chunk as usize * self.chunk_size; + let chunk_end = + ((self.next_chunk as usize + 1) * self.chunk_size).min(data_buffer.len()); + let chunk = data_buffer.slice(chunk_start..chunk_end); + + { + let this = self.project(); + if let Err(err) = this.sink.start_send(chunk) { + return Poll::Ready(Err(err)); + } + } + + if self.next_chunk == self.chunk_count { + // We are all done sending chunks, release data buffer to indicate we're done. + self.data_buffer = None; + } else { + self.next_chunk += 1; + } + + // We need to run this in a loop, since calling `poll_flush` is the next step. + todo!() + } + None => { + // We sent all we can send, but we may need to flush the underlying sink. + let this = self.project(); + this.sink.poll_flush(cx) + } + } + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + todo!() + } +} + +struct Dechunker { + stream: T, +} + +#[tokio::main] +async fn main() -> anyhow::Result<()> { + let stream = TcpStream::connect("localhost:12345").await?; + + let mut codec = FramedWrite::new(stream, BytesCodec::new()); + codec.send(BytesMut::from(&b"xxx\n"[..])).await?; + + Ok(()) +} From dcd337f067e37252fc36d4592e3bacec6bf1ffda Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 May 2022 16:49:01 +0200 Subject: [PATCH 002/735] Second draft, using generic buf sender and custom trait --- src/main.rs | 240 ++++++++++++---------------------------------------- 1 file changed, 55 insertions(+), 185 deletions(-) diff --git a/src/main.rs b/src/main.rs index ed3101d746..7e30a0bd33 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,226 +1,96 @@ use std::{ + error::Error, + io, + marker::PhantomData, pin::Pin, task::{Context, Poll}, }; -use bytes::{Bytes, BytesMut}; -use futures::{Sink, SinkExt}; +use bytes::Buf; +use futures::{AsyncWrite, Future}; use pin_project::pin_project; use thiserror::Error; -use tokio::net::TcpStream; -use tokio_util::codec::{BytesCodec, FramedWrite}; -// Idea for multiplexer: - -trait Channel { - fn into_u8(self) -> u8; - fn inc(self) -> Self; +#[derive(Debug, Error)] +pub enum FrameSinkError { + #[error(transparent)] + Io(#[from] io::Error), + #[error(transparent)] + Other(Box), } -// For multiplexer, simply track which is the active channel, then if not active channel, return not -// ready. How to track who wants to send something? Do we need to learn how waker's work? - -// Quick-and-dirty: Use streams/FuturesUnorded or some other sort of polling mechanism (i.e. create -// a Stream/Sink pair for every `Channel`, allow taking these?). - -// Not having extra handles, simply ingest `(chan_id, msg)` -- does shift the burden of parallizing -// onto the caller. We can figure out some way of setting a bool (or a waker?) for the active -// channel (and registering interest), then waiting until there are no more "active" channels -// between the current pointer and us. We get our slot, send and continue. -// -// The actual Sink would take tuples in this case. Still would need to guard access to it, so maybe -// not a good fit. Note, we do not expect backpressure to matter here! - -// Alternative: No fair scheduling, simply send ASAP, decorated with multiplexer ID. -// What happens if two unlimited streams are blasting at max speed? Starvation. - -// Synchronization primitive: Round-robin number/ticket generator? - -// Potentially better idea: -trait SinkTransformer { - type Input; - type Output; - type Error; +pub trait FrameSink { + type SendFrameFut: Future> + Send; - fn push_item(&mut self, item: Self::Input) -> Result<(), Self::Error>; - - fn next_item(&mut self) -> Result, Self::Error>; + fn send_frame(&mut self, frame: F) -> Self::SendFrameFut; } -struct FrameSink { - sink: S, - transformer: T, +struct Framer { + writer: W, + _frame_phantom: PhantomData, } -#[derive(Debug, Error)] -enum FrameSinkError -where - S: Sink, - T: SinkTransformer, -{ - #[error("sink failed")] - SinkFailed(#[source] >::Error), - #[error("transformer failed")] - TransformerFailed(#[source] ::Error), -} +type FramerFrame = bytes::buf::Chain; -impl Sink for FrameSink +impl FrameSink for Framer where - T: SinkTransformer, + W: AsyncWrite, + F: Buf, { - type Error = FrameSinkError; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - todo!() - } - - fn start_send(self: Pin<&mut Self>, item: T::Input) -> Result<(), Self::Error> { - todo!() - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - todo!() - } + type SendFrameFut = GenericBufSender, W>; - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + fn send_frame(&mut self, frame: F) -> Self::SendFrameFut { + let length_prefixed = (); todo!() } } -// CHUNKER - -const CHUNKER_CHUNK_SIZE: usize = 4096; - #[pin_project] -struct Chunker { - chunk_size: usize, - data_buffer: Option, +struct GenericBufSender<'a, B, W> { + buf: B, #[pin] - sink: S, - next_chunk: u8, - chunk_count: u8, + out: &'a mut W, } -impl Chunker { - fn new(sink: S, chunk_size: usize) -> Self { - todo!() - // Chunker { - // sink, - // data_buffer: None, - // bytes_sent: 0, - // header_sent: false, - // chunk_size, - // } - } -} - -impl Chunker { - fn make_progress_sending_chunks(&mut self) {} -} - -impl Sink for Chunker +impl<'a, B, W> Future for GenericBufSender<'a, B, W> where - S: Sink, + B: Buf, + W: AsyncWrite + Unpin, { - type Error = >::Error; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - if self.data_buffer.is_none() { - let this = self.project(); - - // Report ready only when our data buffer is empty and we're ready to store the next - // header in the underlying sink. - this.sink.poll_ready(cx) - } else { - Poll::Pending - } - } - - fn start_send(self: Pin<&mut Self>, item: Bytes) -> Result<(), Self::Error> { - let chunk_count = item.len() + self.chunk_size - 1 / self.chunk_size; - - // TODO: Check if size exceeds maximum size. + type Output = Result<(), FrameSinkError>; - self.chunk_count = chunk_count as u8; - self.next_chunk = 0; - self.data_buffer = Some(item); - - // TODO: Use statically allocated BytesMut to avoid heap allocations. - let header = Bytes::copy_from_slice(&[self.chunk_count]); - - // Move header into the underlying sink. + fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { let this = self.project(); - this.sink.start_send(header)?; - - Ok(()) - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - // TODO: Ensure zero-sized data is handled correctly. - - match self.data_buffer { - Some(data_buffer) => { - // We know we got more data to send, so ensure the underlying sink is ready. - { - let this = self.project(); - match this.sink.poll_ready(cx) { - Poll::Ready(Ok(())) => { - // Alright, let's go! - } - Poll::Ready(Err(e)) => { - return Poll::Ready(Err(e)); - } - Poll::Pending => { - return Poll::Pending; - } - } - } - - let chunk_start = self.next_chunk as usize * self.chunk_size; - let chunk_end = - ((self.next_chunk as usize + 1) * self.chunk_size).min(data_buffer.len()); - let chunk = data_buffer.slice(chunk_start..chunk_end); - - { - let this = self.project(); - if let Err(err) = this.sink.start_send(chunk) { - return Poll::Ready(Err(err)); - } - } - - if self.next_chunk == self.chunk_count { - // We are all done sending chunks, release data buffer to indicate we're done. - self.data_buffer = None; + let current_slice = this.buf.chunk(); + + match this.out.poll_write(cx, current_slice) { + Poll::Ready(Ok(bytes_written)) => { + // Record the number of bytes written. + this.buf.advance(bytes_written); + if this.buf.remaining() == 0 { + // All bytes written, return success. + Poll::Ready(Ok(())) } else { - self.next_chunk += 1; + // We have more data to write, come back later. + Poll::Pending } - - // We need to run this in a loop, since calling `poll_flush` is the next step. - todo!() - } - None => { - // We sent all we can send, but we may need to flush the underlying sink. - let this = self.project(); - this.sink.poll_flush(cx) } + // An error occured writing, we can just return it. + Poll::Ready(Err(error)) => Poll::Ready(Err(error.into())), + // No writing possible, simply return pending. + Poll::Pending => Poll::Pending, } } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - todo!() - } -} - -struct Dechunker { - stream: T, } -#[tokio::main] -async fn main() -> anyhow::Result<()> { - let stream = TcpStream::connect("localhost:12345").await?; +struct FramerSendFrame; - let mut codec = FramedWrite::new(stream, BytesCodec::new()); - codec.send(BytesMut::from(&b"xxx\n"[..])).await?; +impl Future for FramerSendFrame { + type Output = Result<(), FrameSinkError>; - Ok(()) + fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + todo!() + } } + +fn main() {} From 0666b14c39bf98b8d22daacf604f568811b0e9d6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 May 2022 16:59:04 +0200 Subject: [PATCH 003/735] Finish first trait design attempt using owned writers --- src/main.rs | 47 ++++++++++++++++++++++++----------------------- 1 file changed, 24 insertions(+), 23 deletions(-) diff --git a/src/main.rs b/src/main.rs index 7e30a0bd33..37799bc6d2 100644 --- a/src/main.rs +++ b/src/main.rs @@ -6,7 +6,7 @@ use std::{ task::{Context, Poll}, }; -use bytes::Buf; +use bytes::{Buf, Bytes}; use futures::{AsyncWrite, Future}; use pin_project::pin_project; use thiserror::Error; @@ -25,34 +25,45 @@ pub trait FrameSink { fn send_frame(&mut self, frame: F) -> Self::SendFrameFut; } -struct Framer { - writer: W, +struct LengthPrefixer { + writer: Option, _frame_phantom: PhantomData, } -type FramerFrame = bytes::buf::Chain; +// TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. +type LengthPrefixedFrame = bytes::buf::Chain; -impl FrameSink for Framer +impl FrameSink for LengthPrefixer where - W: AsyncWrite, - F: Buf, + W: AsyncWrite + Send + Unpin, + F: Buf + Send, { - type SendFrameFut = GenericBufSender, W>; + type SendFrameFut = GenericBufSender, W>; fn send_frame(&mut self, frame: F) -> Self::SendFrameFut { - let length_prefixed = (); - todo!() + let length = frame.remaining() as u64; // TODO: Try into + handle error. + let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); + + let writer = self.writer.take().unwrap(); // TODO: Handle error if missing. + + GenericBufSender::new(length_prefixed_frame, writer) } } #[pin_project] -struct GenericBufSender<'a, B, W> { +struct GenericBufSender { buf: B, #[pin] - out: &'a mut W, + out: W, +} + +impl GenericBufSender { + fn new(buf: B, out: W) -> Self { + Self { buf, out } + } } -impl<'a, B, W> Future for GenericBufSender<'a, B, W> +impl Future for GenericBufSender where B: Buf, W: AsyncWrite + Unpin, @@ -83,14 +94,4 @@ where } } -struct FramerSendFrame; - -impl Future for FramerSendFrame { - type Output = Result<(), FrameSinkError>; - - fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { - todo!() - } -} - fn main() {} From 126f41b1e4c5c7494be7496c8f28caae6e4a18e8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 12:12:40 +0200 Subject: [PATCH 004/735] Make frame writing work for simple case --- src/lib.rs | 128 ++++++++++++++++++++++++++++++++++++++++++++++++++++ src/main.rs | 97 --------------------------------------- 2 files changed, 128 insertions(+), 97 deletions(-) create mode 100644 src/lib.rs delete mode 100644 src/main.rs diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000000..cba3627d5f --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,128 @@ +use std::{ + error::Error, + io, + marker::PhantomData, + pin::Pin, + task::{Context, Poll}, +}; + +use bytes::{Buf, Bytes}; +use futures::{AsyncWrite, Future}; +use pin_project::pin_project; +use thiserror::Error; + +#[derive(Debug, Error)] +pub enum FrameSinkError { + #[error(transparent)] + Io(#[from] io::Error), + #[error(transparent)] + Other(Box), +} + +pub trait FrameSink { + type SendFrameFut: Future> + Send; + + fn send_frame(&mut self, frame: F) -> Self::SendFrameFut; +} + +#[derive(Debug)] +pub struct LengthPrefixer { + writer: Option, + _frame_phantom: PhantomData, +} + +impl LengthPrefixer { + pub fn new(writer: W) -> Self { + Self { + writer: Some(writer), + _frame_phantom: PhantomData, + } + } +} + +// TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. +type LengthPrefixedFrame = bytes::buf::Chain; + +impl FrameSink for LengthPrefixer +where + W: AsyncWrite + Send + Unpin, + F: Buf + Send, +{ + type SendFrameFut = GenericBufSender, W>; + + fn send_frame(&mut self, frame: F) -> Self::SendFrameFut { + let length = frame.remaining() as u64; // TODO: Try into + handle error. + let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); + let writer = self.writer.take().unwrap(); // TODO: Handle error if missing. + GenericBufSender::new(length_prefixed_frame, writer) + } +} + +#[pin_project] +struct GenericBufSender { + buf: B, + #[pin] + out: W, +} + +impl GenericBufSender { + fn new(buf: B, out: W) -> Self { + Self { buf, out } + } +} + +impl Future for GenericBufSender +where + B: Buf, + W: AsyncWrite + Unpin, +{ + type Output = Result<(), FrameSinkError>; + + fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + loop { + let GenericBufSender { + ref mut buf, + ref mut out, + } = &mut *self; + + let current_slice = buf.chunk(); + let out_pinned = Pin::new(out); + + match out_pinned.poll_write(cx, current_slice) { + Poll::Ready(Ok(bytes_written)) => { + // Record the number of bytes written. + self.buf.advance(bytes_written); + if !self.buf.has_remaining() { + // All bytes written, return success. + return Poll::Ready(Ok(())); + } + // We have more data to write, and `out` has not stalled yet, try to send more. + } + // An error occured writing, we can just return it. + Poll::Ready(Err(error)) => return Poll::Ready(Err(error.into())), + // No writing possible, simply return pending. + Poll::Pending => return Poll::Pending, + } + } + } +} + +#[cfg(test)] +mod tests { + use crate::{FrameSink, LengthPrefixer}; + + #[tokio::test] + async fn length_prefixer_single_frame_works() { + let mut output = Vec::new(); + + let mut lp = LengthPrefixer::new(&mut output); + let frame = &b"abcdefg"[..]; + + assert!(lp.send_frame(frame).await.is_ok()); + + assert_eq!( + output.as_slice(), + b"\x07\x00\x00\x00\x00\x00\x00\x00abcdefg" + ); + } +} diff --git a/src/main.rs b/src/main.rs deleted file mode 100644 index 37799bc6d2..0000000000 --- a/src/main.rs +++ /dev/null @@ -1,97 +0,0 @@ -use std::{ - error::Error, - io, - marker::PhantomData, - pin::Pin, - task::{Context, Poll}, -}; - -use bytes::{Buf, Bytes}; -use futures::{AsyncWrite, Future}; -use pin_project::pin_project; -use thiserror::Error; - -#[derive(Debug, Error)] -pub enum FrameSinkError { - #[error(transparent)] - Io(#[from] io::Error), - #[error(transparent)] - Other(Box), -} - -pub trait FrameSink { - type SendFrameFut: Future> + Send; - - fn send_frame(&mut self, frame: F) -> Self::SendFrameFut; -} - -struct LengthPrefixer { - writer: Option, - _frame_phantom: PhantomData, -} - -// TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. -type LengthPrefixedFrame = bytes::buf::Chain; - -impl FrameSink for LengthPrefixer -where - W: AsyncWrite + Send + Unpin, - F: Buf + Send, -{ - type SendFrameFut = GenericBufSender, W>; - - fn send_frame(&mut self, frame: F) -> Self::SendFrameFut { - let length = frame.remaining() as u64; // TODO: Try into + handle error. - let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); - - let writer = self.writer.take().unwrap(); // TODO: Handle error if missing. - - GenericBufSender::new(length_prefixed_frame, writer) - } -} - -#[pin_project] -struct GenericBufSender { - buf: B, - #[pin] - out: W, -} - -impl GenericBufSender { - fn new(buf: B, out: W) -> Self { - Self { buf, out } - } -} - -impl Future for GenericBufSender -where - B: Buf, - W: AsyncWrite + Unpin, -{ - type Output = Result<(), FrameSinkError>; - - fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { - let this = self.project(); - let current_slice = this.buf.chunk(); - - match this.out.poll_write(cx, current_slice) { - Poll::Ready(Ok(bytes_written)) => { - // Record the number of bytes written. - this.buf.advance(bytes_written); - if this.buf.remaining() == 0 { - // All bytes written, return success. - Poll::Ready(Ok(())) - } else { - // We have more data to write, come back later. - Poll::Pending - } - } - // An error occured writing, we can just return it. - Poll::Ready(Err(error)) => Poll::Ready(Err(error.into())), - // No writing possible, simply return pending. - Poll::Pending => Poll::Pending, - } - } -} - -fn main() {} From f7ae894a2c20e9b9c2ba3314ebd39485cc07afa8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 12:14:50 +0200 Subject: [PATCH 005/735] Add test for more complicated case of multiple frame sends --- src/lib.rs | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/src/lib.rs b/src/lib.rs index cba3627d5f..a4a2c4ffef 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -59,7 +59,7 @@ where } #[pin_project] -struct GenericBufSender { +pub struct GenericBufSender { buf: B, #[pin] out: W, @@ -125,4 +125,20 @@ mod tests { b"\x07\x00\x00\x00\x00\x00\x00\x00abcdefg" ); } + + #[tokio::test] + async fn length_prefixer_multi_frame_works() { + let mut output = Vec::new(); + + let mut lp = LengthPrefixer::new(&mut output); + + assert!(lp.send_frame(&b"one"[..]).await.is_ok()); + assert!(lp.send_frame(&b"two"[..]).await.is_ok()); + assert!(lp.send_frame(&b"three"[..]).await.is_ok()); + + assert_eq!( + output.as_slice(), + b"\x03\x00\x00\x00\x00\x00\x00\x00one\x03\x00\x00\x00\x00\x00\x00\x00two\x05\x00\x00\x00\x00\x00\x00\x00three" + ); + } } From 83c52a3c8cfc993d3fa91e6318e1c5efffc4948d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 12:21:47 +0200 Subject: [PATCH 006/735] Implement `FrameSink` on mutalbe reference --- src/lib.rs | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index a4a2c4ffef..db353930d0 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -22,19 +22,19 @@ pub enum FrameSinkError { pub trait FrameSink { type SendFrameFut: Future> + Send; - fn send_frame(&mut self, frame: F) -> Self::SendFrameFut; + fn send_frame(self, frame: F) -> Self::SendFrameFut; } #[derive(Debug)] pub struct LengthPrefixer { - writer: Option, + writer: W, _frame_phantom: PhantomData, } impl LengthPrefixer { pub fn new(writer: W) -> Self { Self { - writer: Some(writer), + writer, _frame_phantom: PhantomData, } } @@ -43,35 +43,34 @@ impl LengthPrefixer { // TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. type LengthPrefixedFrame = bytes::buf::Chain; -impl FrameSink for LengthPrefixer +impl<'a, W, F> FrameSink for &'a mut LengthPrefixer where W: AsyncWrite + Send + Unpin, F: Buf + Send, { - type SendFrameFut = GenericBufSender, W>; + type SendFrameFut = GenericBufSender<'a, LengthPrefixedFrame, W>; - fn send_frame(&mut self, frame: F) -> Self::SendFrameFut { + fn send_frame(self, frame: F) -> Self::SendFrameFut { let length = frame.remaining() as u64; // TODO: Try into + handle error. let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); - let writer = self.writer.take().unwrap(); // TODO: Handle error if missing. - GenericBufSender::new(length_prefixed_frame, writer) + GenericBufSender::new(length_prefixed_frame, &mut self.writer) } } #[pin_project] -pub struct GenericBufSender { +pub struct GenericBufSender<'a, B, W> { buf: B, #[pin] - out: W, + out: &'a mut W, } -impl GenericBufSender { - fn new(buf: B, out: W) -> Self { +impl<'a, B, W> GenericBufSender<'a, B, W> { + fn new(buf: B, out: &'a mut W) -> Self { Self { buf, out } } } -impl Future for GenericBufSender +impl<'a, B, W> Future for GenericBufSender<'a, B, W> where B: Buf, W: AsyncWrite + Unpin, From 7e4ce6500cebba44bcf6887ab52d692c7aab07b4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 12:28:25 +0200 Subject: [PATCH 007/735] Refactor `length_prefixed` into submodule --- src/length_prefixed.rs | 74 ++++++++++++++++++++++++++++++++++++++++++ src/lib.rs | 74 ++---------------------------------------- 2 files changed, 77 insertions(+), 71 deletions(-) create mode 100644 src/length_prefixed.rs diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs new file mode 100644 index 0000000000..b6467f1807 --- /dev/null +++ b/src/length_prefixed.rs @@ -0,0 +1,74 @@ +use std::marker::PhantomData; + +use bytes::{Buf, Bytes}; +use futures::AsyncWrite; + +use crate::{FrameSink, GenericBufSender}; + +#[derive(Debug)] +pub struct LengthPrefixer { + writer: W, + _frame_phantom: PhantomData, +} + +impl LengthPrefixer { + pub fn new(writer: W) -> Self { + Self { + writer, + _frame_phantom: PhantomData, + } + } +} + +// TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. +type LengthPrefixedFrame = bytes::buf::Chain; + +impl<'a, W, F> FrameSink for &'a mut LengthPrefixer +where + W: AsyncWrite + Send + Unpin, + F: Buf + Send, +{ + type SendFrameFut = GenericBufSender<'a, LengthPrefixedFrame, W>; + + fn send_frame(self, frame: F) -> Self::SendFrameFut { + let length = frame.remaining() as u64; // TODO: Try into + handle error. + let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); + GenericBufSender::new(length_prefixed_frame, &mut self.writer) + } +} + +#[cfg(test)] +mod tests { + use crate::{length_prefixed::LengthPrefixer, FrameSink}; + + #[tokio::test] + async fn length_prefixer_single_frame_works() { + let mut output = Vec::new(); + + let mut lp = LengthPrefixer::new(&mut output); + let frame = &b"abcdefg"[..]; + + assert!(lp.send_frame(frame).await.is_ok()); + + assert_eq!( + output.as_slice(), + b"\x07\x00\x00\x00\x00\x00\x00\x00abcdefg" + ); + } + + #[tokio::test] + async fn length_prefixer_multi_frame_works() { + let mut output = Vec::new(); + + let mut lp = LengthPrefixer::new(&mut output); + + assert!(lp.send_frame(&b"one"[..]).await.is_ok()); + assert!(lp.send_frame(&b"two"[..]).await.is_ok()); + assert!(lp.send_frame(&b"three"[..]).await.is_ok()); + + assert_eq!( + output.as_slice(), + b"\x03\x00\x00\x00\x00\x00\x00\x00one\x03\x00\x00\x00\x00\x00\x00\x00two\x05\x00\x00\x00\x00\x00\x00\x00three" + ); + } +} diff --git a/src/lib.rs b/src/lib.rs index db353930d0..1722777bb5 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,12 +1,13 @@ +mod length_prefixed; + use std::{ error::Error, io, - marker::PhantomData, pin::Pin, task::{Context, Poll}, }; -use bytes::{Buf, Bytes}; +use bytes::Buf; use futures::{AsyncWrite, Future}; use pin_project::pin_project; use thiserror::Error; @@ -25,42 +26,9 @@ pub trait FrameSink { fn send_frame(self, frame: F) -> Self::SendFrameFut; } -#[derive(Debug)] -pub struct LengthPrefixer { - writer: W, - _frame_phantom: PhantomData, -} - -impl LengthPrefixer { - pub fn new(writer: W) -> Self { - Self { - writer, - _frame_phantom: PhantomData, - } - } -} - -// TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. -type LengthPrefixedFrame = bytes::buf::Chain; - -impl<'a, W, F> FrameSink for &'a mut LengthPrefixer -where - W: AsyncWrite + Send + Unpin, - F: Buf + Send, -{ - type SendFrameFut = GenericBufSender<'a, LengthPrefixedFrame, W>; - - fn send_frame(self, frame: F) -> Self::SendFrameFut { - let length = frame.remaining() as u64; // TODO: Try into + handle error. - let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); - GenericBufSender::new(length_prefixed_frame, &mut self.writer) - } -} - #[pin_project] pub struct GenericBufSender<'a, B, W> { buf: B, - #[pin] out: &'a mut W, } @@ -105,39 +73,3 @@ where } } } - -#[cfg(test)] -mod tests { - use crate::{FrameSink, LengthPrefixer}; - - #[tokio::test] - async fn length_prefixer_single_frame_works() { - let mut output = Vec::new(); - - let mut lp = LengthPrefixer::new(&mut output); - let frame = &b"abcdefg"[..]; - - assert!(lp.send_frame(frame).await.is_ok()); - - assert_eq!( - output.as_slice(), - b"\x07\x00\x00\x00\x00\x00\x00\x00abcdefg" - ); - } - - #[tokio::test] - async fn length_prefixer_multi_frame_works() { - let mut output = Vec::new(); - - let mut lp = LengthPrefixer::new(&mut output); - - assert!(lp.send_frame(&b"one"[..]).await.is_ok()); - assert!(lp.send_frame(&b"two"[..]).await.is_ok()); - assert!(lp.send_frame(&b"three"[..]).await.is_ok()); - - assert_eq!( - output.as_slice(), - b"\x03\x00\x00\x00\x00\x00\x00\x00one\x03\x00\x00\x00\x00\x00\x00\x00two\x05\x00\x00\x00\x00\x00\x00\x00three" - ); - } -} From b83b6803827a7b1c96c08bc2f466a064303b118d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 12:51:39 +0200 Subject: [PATCH 008/735] Simplify pinned code --- src/lib.rs | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 1722777bb5..fce7b7d8d8 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -26,7 +26,7 @@ pub trait FrameSink { fn send_frame(self, frame: F) -> Self::SendFrameFut; } -#[pin_project] +#[pin_project] // TODO: We only need `pin_project` for deriving the `DerefMut` impl we need. pub struct GenericBufSender<'a, B, W> { buf: B, out: &'a mut W, @@ -45,12 +45,13 @@ where { type Output = Result<(), FrameSinkError>; - fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + let mref = self.get_mut(); loop { let GenericBufSender { ref mut buf, ref mut out, - } = &mut *self; + } = mref; let current_slice = buf.chunk(); let out_pinned = Pin::new(out); @@ -58,8 +59,8 @@ where match out_pinned.poll_write(cx, current_slice) { Poll::Ready(Ok(bytes_written)) => { // Record the number of bytes written. - self.buf.advance(bytes_written); - if !self.buf.has_remaining() { + buf.advance(bytes_written); + if !buf.has_remaining() { // All bytes written, return success. return Poll::Ready(Ok(())); } From 3d1775625711a1d612783d5192a0575492719911 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 13:21:20 +0200 Subject: [PATCH 009/735] Use immediate frames for length prefixes --- src/length_prefixed.rs | 22 ++++++------------- src/lib.rs | 48 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 15 deletions(-) diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index b6467f1807..8edbb3f09c 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -1,9 +1,9 @@ use std::marker::PhantomData; -use bytes::{Buf, Bytes}; +use bytes::Buf; use futures::AsyncWrite; -use crate::{FrameSink, GenericBufSender}; +use crate::{FrameSink, GenericBufSender, ImmediateFrame}; #[derive(Debug)] pub struct LengthPrefixer { @@ -20,8 +20,7 @@ impl LengthPrefixer { } } -// TODO: Instead of bytes, use custom prefixer for small ints, so we do not have to heap allocate. -type LengthPrefixedFrame = bytes::buf::Chain; +type LengthPrefixedFrame = bytes::buf::Chain, F>; impl<'a, W, F> FrameSink for &'a mut LengthPrefixer where @@ -31,9 +30,8 @@ where type SendFrameFut = GenericBufSender<'a, LengthPrefixedFrame, W>; fn send_frame(self, frame: F) -> Self::SendFrameFut { - let length = frame.remaining() as u64; // TODO: Try into + handle error. - let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); - GenericBufSender::new(length_prefixed_frame, &mut self.writer) + let length = frame.remaining() as u16; // TODO: Try into + handle error. + GenericBufSender::new(ImmediateFrame::from(length).chain(frame), &mut self.writer) } } @@ -50,10 +48,7 @@ mod tests { assert!(lp.send_frame(frame).await.is_ok()); - assert_eq!( - output.as_slice(), - b"\x07\x00\x00\x00\x00\x00\x00\x00abcdefg" - ); + assert_eq!(output.as_slice(), b"\x07\x00abcdefg"); } #[tokio::test] @@ -66,9 +61,6 @@ mod tests { assert!(lp.send_frame(&b"two"[..]).await.is_ok()); assert!(lp.send_frame(&b"three"[..]).await.is_ok()); - assert_eq!( - output.as_slice(), - b"\x03\x00\x00\x00\x00\x00\x00\x00one\x03\x00\x00\x00\x00\x00\x00\x00two\x05\x00\x00\x00\x00\x00\x00\x00three" - ); + assert_eq!(output.as_slice(), b"\x03\x00one\x03\x00two\x05\x00three"); } } diff --git a/src/lib.rs b/src/lib.rs index fce7b7d8d8..03a343de6c 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -26,6 +26,54 @@ pub trait FrameSink { fn send_frame(self, frame: F) -> Self::SendFrameFut; } +pub struct ImmediateFrame { + pos: usize, + value: A, +} + +impl ImmediateFrame { + #[inline] + pub fn new(value: A) -> Self { + Self { pos: 0, value } + } +} + +impl From for ImmediateFrame<[u8; 2]> { + #[inline] + fn from(value: u16) -> Self { + ImmediateFrame::new(value.to_le_bytes()) + } +} + +impl From for ImmediateFrame<[u8; 4]> { + #[inline] + fn from(value: u32) -> Self { + ImmediateFrame::new(value.to_le_bytes()) + } +} + +impl Buf for ImmediateFrame +where + A: AsRef<[u8]>, +{ + fn remaining(&self) -> usize { + // Does not overflow, as `pos` is `< .len()`. + + self.value.as_ref().len() - self.pos + } + + fn chunk(&self) -> &[u8] { + // Safe access, as `pos` is guaranteed to be `< .len()`. + &self.value.as_ref()[self.pos..] + } + + fn advance(&mut self, cnt: usize) { + // This is the only function modifying `pos`, upholding the invariant of it being smaller + // than the length of the data we have. + self.pos = (self.pos + cnt).min(self.value.as_ref().len()); + } +} + #[pin_project] // TODO: We only need `pin_project` for deriving the `DerefMut` impl we need. pub struct GenericBufSender<'a, B, W> { buf: B, From 5ee658382a8ea74a01bf42a57738f6b0dc2032b9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 13:44:32 +0200 Subject: [PATCH 010/735] Add draft code for chunking --- src/chunked.rs | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/lib.rs | 8 +++++ 2 files changed, 99 insertions(+) create mode 100644 src/chunked.rs diff --git a/src/chunked.rs b/src/chunked.rs new file mode 100644 index 0000000000..d03aed168d --- /dev/null +++ b/src/chunked.rs @@ -0,0 +1,91 @@ +use std::{borrow::BorrowMut, pin::Pin, task::Context}; + +use bytes::{Buf, Bytes}; +use futures::Future; + +use crate::{FrameSink, FrameSinkError, ImmediateFrame}; + +// use std::marker::PhantomData; + +// use bytes::{Buf, Bytes}; + +// use crate::{FrameSink, GenericBufSender}; + +// #[derive(Debug)] +// pub struct Chunker { +// frame_sink: S, +// _frame_phantom: PhantomData, +// } + +type SingleChunk = bytes::buf::Chain, Bytes>; + +/// TODO: Turn into non-anonymous future with zero allocations. +fn x( + mut frame: B, + chunk_size: usize, + mut sink: S, +) -> impl Future> +where + B: Buf, + for<'a> &'a mut S: FrameSink, +{ + let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; + + let chunk_id_ceil: u8 = num_frames.try_into().unwrap(); // TODO: Report error. + async move { + for n in 0..num_frames { + let chunk_id = if n == 0 { + chunk_id_ceil + } else { + // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. + n as u8 + }; + + // Note: If the given frame is `Bytes`, `copy_to_bytes` should be a cheap copy. + let chunk_data = frame.copy_to_bytes(chunk_size); + let chunk = ImmediateFrame::from(chunk_id).chain(chunk_data); + + // We have produced a chunk, now send it. + sink.send_frame(chunk).await?; + } + + Result::<(), FrameSinkError>::Ok(()) + } +} + +// NEW +// struct ChunkSender { +// sent: usize, +// chunk_size: usize, +// frame: F, +// sink: S, +// } + +// impl Future for ChunkSender { +// type Output = Result<(), FrameSinkError>; + +// fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> std::task::Poll { + +// } +// } +// END NEW + +// // TODO: Use special single-byte prefix type. +// type SingleChunk; +// struct SingleChunk { + +// } + +// impl<'a, S, F> FrameSink for &'a mut Chunker +// where +// F: Buf + Send, +// { +// type SendFrameFut = GenericBufSender<'a, ChunkedFrames, W>; + +// fn send_frame(self, frame: F) -> Self::SendFrameFut { +// todo!() +// // let length = frame.remaining() as u64; // TODO: Try into + handle error. +// // let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); +// // GenericBufSender::new(length_prefixed_frame, &mut self.writer) +// } +// } diff --git a/src/lib.rs b/src/lib.rs index 03a343de6c..1aaebdf52d 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,3 +1,4 @@ +mod chunked; mod length_prefixed; use std::{ @@ -38,6 +39,13 @@ impl ImmediateFrame { } } +impl From for ImmediateFrame<[u8; 1]> { + #[inline] + fn from(value: u8) -> Self { + ImmediateFrame::new(value.to_le_bytes()) + } +} + impl From for ImmediateFrame<[u8; 2]> { #[inline] fn from(value: u16) -> Self { From 2f6ea5837c1d8fbdbec6cb31ae2eb5b4cdd0310f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 May 2022 16:18:53 +0200 Subject: [PATCH 011/735] Experiment with associated future types --- src/chunked.rs | 75 +++++++++++++++++++++++++++++++++----------------- 1 file changed, 50 insertions(+), 25 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index d03aed168d..313dd90db2 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -17,40 +17,65 @@ use crate::{FrameSink, FrameSinkError, ImmediateFrame}; // _frame_phantom: PhantomData, // } +trait Foo { + type Fut: Future; + + fn mk_fut(self) -> Self::Fut; +} + +struct Bar; + +impl Foo for Bar { + type Fut: Future = impl Future; + + fn mk_fut(self) -> Self::Fut { + async move { 123 } + } +} + type SingleChunk = bytes::buf::Chain, Bytes>; /// TODO: Turn into non-anonymous future with zero allocations. -fn x( - mut frame: B, - chunk_size: usize, - mut sink: S, -) -> impl Future> +async fn x(frame: B, chunk_size: usize, mut sink: S) -> Result<(), FrameSinkError> where B: Buf, for<'a> &'a mut S: FrameSink, { + for chunk in chunk_frame(frame, chunk_size) { + sink.send_frame(chunk).await?; + } + Ok(()) +} + +fn chunk_frame(mut frame: B, chunk_size: usize) -> impl Iterator { let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; - let chunk_id_ceil: u8 = num_frames.try_into().unwrap(); // TODO: Report error. - async move { - for n in 0..num_frames { - let chunk_id = if n == 0 { - chunk_id_ceil - } else { - // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. - n as u8 - }; - - // Note: If the given frame is `Bytes`, `copy_to_bytes` should be a cheap copy. - let chunk_data = frame.copy_to_bytes(chunk_size); - let chunk = ImmediateFrame::from(chunk_id).chain(chunk_data); - - // We have produced a chunk, now send it. - sink.send_frame(chunk).await?; - } - - Result::<(), FrameSinkError>::Ok(()) - } + let chunk_id_ceil: u8 = num_frames.try_into().unwrap(); + + (0..num_frames).into_iter().map(move |n| { + let chunk_id = if n == 0 { + chunk_id_ceil + } else { + // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. + n as u8 + }; + + let chunk_data = frame.copy_to_bytes(chunk_size); + ImmediateFrame::from(chunk_id).chain(chunk_data) + }) + // TODO: Report error. + // async move { + + // // Note: If the given frame is `Bytes`, `copy_to_bytes` should be a cheap copy. + // let chunk_data = frame.copy_to_bytes(chunk_size); + // let chunk = ImmediateFrame::from(chunk_id).chain(chunk_data); + + // // We have produced a chunk, now send it. + // sink.send_frame(chunk).await?; + // } + + // Result::<(), FrameSinkError>::Ok(()) + // } } // NEW From a6834efabeef3bf03949e3fb638f79357de56fec Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 12 May 2022 13:24:37 +0200 Subject: [PATCH 012/735] New chunking implementation --- src/chunked.rs | 91 +++++++++++++++++++++++++++++--------------------- src/lib.rs | 2 +- 2 files changed, 54 insertions(+), 39 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 313dd90db2..32a8c4decb 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -1,7 +1,12 @@ -use std::{borrow::BorrowMut, pin::Pin, task::Context}; +use std::{ + iter::Peekable, + pin::Pin, + task::{Context, Poll}, +}; use bytes::{Buf, Bytes}; use futures::Future; +use pin_project::pin_project; use crate::{FrameSink, FrameSinkError, ImmediateFrame}; @@ -23,16 +28,6 @@ trait Foo { fn mk_fut(self) -> Self::Fut; } -struct Bar; - -impl Foo for Bar { - type Fut: Future = impl Future; - - fn mk_fut(self) -> Self::Fut { - async move { 123 } - } -} - type SingleChunk = bytes::buf::Chain, Bytes>; /// TODO: Turn into non-anonymous future with zero allocations. @@ -47,6 +42,12 @@ where Ok(()) } +/// Chunks a frame into ready-to-send chunks. +/// +/// # Notes +/// +/// Internally, data is copied into chunks by using `Buf::copy_to_bytes`. It is advisable to use a +/// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. fn chunk_frame(mut frame: B, chunk_size: usize) -> impl Iterator { let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; @@ -63,36 +64,50 @@ fn chunk_frame(mut frame: B, chunk_size: usize) -> impl Iterator::Ok(()) - // } } -// NEW -// struct ChunkSender { -// sent: usize, -// chunk_size: usize, -// frame: F, -// sink: S, -// } - -// impl Future for ChunkSender { -// type Output = Result<(), FrameSinkError>; - -// fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> std::task::Poll { +#[pin_project] +struct ChunkSender<'a, S> +where + &'a mut S: FrameSink, + S: 'a, +{ + chunks: Box>, + chunk_in_progress: Option<<&'a mut S as FrameSink>::SendFrameFut>, + sink: S, +} -// } -// } +impl<'a, S> Future for ChunkSender<'a, S> +where + for<'b> &'b mut S: FrameSink, +{ + type Output = Result<(), FrameSinkError>; + + fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + match self.chunks.next() { + Some(current_chunk) => { + let mut fut = self.sink.send_frame(current_chunk); + let pinned_fut = Pin::new(&mut fut); + match pinned_fut.poll(cx) { + Poll::Ready(_) => { + todo!() + } + Poll::Pending => { + // Store the future for future polling. + self.chunk_in_progress = Some(fut); + + // We need to wait to make progress. + Poll::Pending + } + } + } + None => { + // We're all done sending. + Poll::Ready(Ok(())) + } + } + } +} // END NEW // // TODO: Use special single-byte prefix type. diff --git a/src/lib.rs b/src/lib.rs index 1aaebdf52d..e45b56cf32 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -22,7 +22,7 @@ pub enum FrameSinkError { } pub trait FrameSink { - type SendFrameFut: Future> + Send; + type SendFrameFut: Future> + Send + Unpin; fn send_frame(self, frame: F) -> Self::SendFrameFut; } From dce9608a83d2ebac7fdf7f0d4caf09d45eef27ff Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 12 May 2022 14:18:51 +0200 Subject: [PATCH 013/735] Construct new generic sender --- src/lib.rs | 48 +++++++++++++++++++++++++++++------------------- 1 file changed, 29 insertions(+), 19 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index e45b56cf32..5b7aa4aa70 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -21,8 +21,8 @@ pub enum FrameSinkError { Other(Box), } -pub trait FrameSink { - type SendFrameFut: Future> + Send + Unpin; +pub trait FrameSink: Sized { + type SendFrameFut: Future> + Send; fn send_frame(self, frame: F) -> Self::SendFrameFut; } @@ -83,34 +83,39 @@ where } #[pin_project] // TODO: We only need `pin_project` for deriving the `DerefMut` impl we need. -pub struct GenericBufSender<'a, B, W> { +pub struct GenericBufSender { buf: B, - out: &'a mut W, + out: Option, } -impl<'a, B, W> GenericBufSender<'a, B, W> { - fn new(buf: B, out: &'a mut W) -> Self { - Self { buf, out } +impl GenericBufSender { + fn new(buf: B, out: W) -> Self { + Self { + buf, + out: Some(out), + } } } -impl<'a, B, W> Future for GenericBufSender<'a, B, W> +impl Future for GenericBufSender where B: Buf, W: AsyncWrite + Unpin, { - type Output = Result<(), FrameSinkError>; + type Output = Result; + + fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + let mut out = self + .out + .take() + .expect("(unfused) GenericBufSender polled after completion"); - fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { let mref = self.get_mut(); - loop { - let GenericBufSender { - ref mut buf, - ref mut out, - } = mref; + let out = loop { + let GenericBufSender { ref mut buf, .. } = mref; let current_slice = buf.chunk(); - let out_pinned = Pin::new(out); + let out_pinned = Pin::new(&mut out); match out_pinned.poll_write(cx, current_slice) { Poll::Ready(Ok(bytes_written)) => { @@ -118,15 +123,20 @@ where buf.advance(bytes_written); if !buf.has_remaining() { // All bytes written, return success. - return Poll::Ready(Ok(())); + return Poll::Ready(Ok(out)); } // We have more data to write, and `out` has not stalled yet, try to send more. } // An error occured writing, we can just return it. Poll::Ready(Err(error)) => return Poll::Ready(Err(error.into())), // No writing possible, simply return pending. - Poll::Pending => return Poll::Pending, + Poll::Pending => { + break out; + } } - } + }; + + mref.out = Some(out); + Poll::Pending } } From a0a2316f113cded3f231514eb16f21b21c46da5b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 10:58:25 +0200 Subject: [PATCH 014/735] Commit intermediate code --- src/chunked.rs | 233 +++++++++++++++++++++-------------------- src/length_prefixed.rs | 79 ++++++++++++-- 2 files changed, 189 insertions(+), 123 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 32a8c4decb..03d2b29ba5 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -1,131 +1,132 @@ -use std::{ - iter::Peekable, - pin::Pin, - task::{Context, Poll}, -}; +// use std::{ +// pin::Pin, +// task::{Context, Poll}, +// }; -use bytes::{Buf, Bytes}; -use futures::Future; -use pin_project::pin_project; +// use bytes::{Buf, Bytes}; +// use futures::{future::BoxFuture, Future, FutureExt}; +// use pin_project::pin_project; -use crate::{FrameSink, FrameSinkError, ImmediateFrame}; +// use crate::{FrameSink, FrameSinkError, ImmediateFrame}; -// use std::marker::PhantomData; +// // use std::marker::PhantomData; -// use bytes::{Buf, Bytes}; +// // use bytes::{Buf, Bytes}; -// use crate::{FrameSink, GenericBufSender}; +// // use crate::{FrameSink, GenericBufSender}; -// #[derive(Debug)] -// pub struct Chunker { -// frame_sink: S, -// _frame_phantom: PhantomData, -// } +// // #[derive(Debug)] +// // pub struct Chunker { +// // frame_sink: S, +// // _frame_phantom: PhantomData, +// // } -trait Foo { - type Fut: Future; - - fn mk_fut(self) -> Self::Fut; -} - -type SingleChunk = bytes::buf::Chain, Bytes>; - -/// TODO: Turn into non-anonymous future with zero allocations. -async fn x(frame: B, chunk_size: usize, mut sink: S) -> Result<(), FrameSinkError> -where - B: Buf, - for<'a> &'a mut S: FrameSink, -{ - for chunk in chunk_frame(frame, chunk_size) { - sink.send_frame(chunk).await?; - } - Ok(()) -} - -/// Chunks a frame into ready-to-send chunks. -/// -/// # Notes -/// -/// Internally, data is copied into chunks by using `Buf::copy_to_bytes`. It is advisable to use a -/// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. -fn chunk_frame(mut frame: B, chunk_size: usize) -> impl Iterator { - let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; - - let chunk_id_ceil: u8 = num_frames.try_into().unwrap(); - - (0..num_frames).into_iter().map(move |n| { - let chunk_id = if n == 0 { - chunk_id_ceil - } else { - // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. - n as u8 - }; - - let chunk_data = frame.copy_to_bytes(chunk_size); - ImmediateFrame::from(chunk_id).chain(chunk_data) - }) -} - -#[pin_project] -struct ChunkSender<'a, S> -where - &'a mut S: FrameSink, - S: 'a, -{ - chunks: Box>, - chunk_in_progress: Option<<&'a mut S as FrameSink>::SendFrameFut>, - sink: S, -} - -impl<'a, S> Future for ChunkSender<'a, S> -where - for<'b> &'b mut S: FrameSink, -{ - type Output = Result<(), FrameSinkError>; - - fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { - match self.chunks.next() { - Some(current_chunk) => { - let mut fut = self.sink.send_frame(current_chunk); - let pinned_fut = Pin::new(&mut fut); - match pinned_fut.poll(cx) { - Poll::Ready(_) => { - todo!() - } - Poll::Pending => { - // Store the future for future polling. - self.chunk_in_progress = Some(fut); - - // We need to wait to make progress. - Poll::Pending - } - } - } - None => { - // We're all done sending. - Poll::Ready(Ok(())) - } - } - } -} -// END NEW - -// // TODO: Use special single-byte prefix type. -// type SingleChunk; -// struct SingleChunk { +// trait Foo { +// type Fut: Future; +// fn mk_fut(self) -> Self::Fut; // } -// impl<'a, S, F> FrameSink for &'a mut Chunker +// type SingleChunk = bytes::buf::Chain, Bytes>; + +// /// TODO: Turn into non-anonymous future with zero allocations. +// async fn x(frame: B, chunk_size: usize, mut sink: S) -> Result<(), FrameSinkError> // where -// F: Buf + Send, +// B: Buf, +// for<'a> &'a mut S: FrameSink, // { -// type SendFrameFut = GenericBufSender<'a, ChunkedFrames, W>; +// for chunk in chunk_frame(frame, chunk_size) { +// sink.send_frame(chunk).await?; +// } +// Ok(()) +// } -// fn send_frame(self, frame: F) -> Self::SendFrameFut { -// todo!() -// // let length = frame.remaining() as u64; // TODO: Try into + handle error. -// // let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); -// // GenericBufSender::new(length_prefixed_frame, &mut self.writer) +// /// Chunks a frame into ready-to-send chunks. +// /// +// /// # Notes +// /// +// /// Internally, data is copied into chunks by using `Buf::copy_to_bytes`. It is advisable to use a +// /// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. +// fn chunk_frame(mut frame: B, chunk_size: usize) -> impl Iterator { +// let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; + +// let chunk_id_ceil: u8 = num_frames.try_into().unwrap(); + +// (0..num_frames).into_iter().map(move |n| { +// let chunk_id = if n == 0 { +// chunk_id_ceil +// } else { +// // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. +// n as u8 +// }; + +// let chunk_data = frame.copy_to_bytes(chunk_size); +// ImmediateFrame::from(chunk_id).chain(chunk_data) +// }) +// } + +// #[pin_project] +// struct ChunkSender { +// chunks: Box>, +// chunk_in_progress: Option> + Send>>, +// sink: Option, +// } + +// impl Future for ChunkSender +// where +// S: FrameSink, +// { +// type Output = Result<(), FrameSinkError>; + +// fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { +// match self.chunks.next() { +// Some(current_chunk) => { +// let sink = self.sink.take().unwrap(); // TODO + +// let mut fut: Pin< +// Box> + Send + Unpin>, +// > = sink.send_frame(current_chunk).boxed(); + +// // TODO: Simplify? +// let mut pinned_fut = Pin::new(&mut fut); +// match pinned_fut.poll(cx) { +// Poll::Ready(_) => { +// todo!() +// } +// Poll::Pending => { +// // Store the future for future polling. +// self.chunk_in_progress = Some(Pin::into_inner(fut)); + +// // We need to wait to make progress. +// Poll::Pending +// } +// } +// } +// None => { +// // We're all done sending. +// Poll::Ready(Ok(())) +// } +// } // } // } +// // END NEW + +// // // TODO: Use special single-byte prefix type. +// // type SingleChunk; +// // struct SingleChunk { + +// // } + +// // impl<'a, S, F> FrameSink for &'a mut Chunker +// // where +// // F: Buf + Send, +// // { +// // type SendFrameFut = GenericBufSender<'a, ChunkedFrames, W>; + +// // fn send_frame(self, frame: F) -> Self::SendFrameFut { +// // todo!() +// // // let length = frame.remaining() as u64; // TODO: Try into + handle error. +// // // let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); +// // // GenericBufSender::new(length_prefixed_frame, &mut self.writer) +// // } +// // } diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index 8edbb3f09c..240e3fe584 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -1,9 +1,14 @@ -use std::marker::PhantomData; +use std::{ + marker::PhantomData, + pin::Pin, + task::{Context, Poll}, +}; use bytes::Buf; -use futures::AsyncWrite; +use futures::{AsyncWrite, Future}; +use pin_project::pin_project; -use crate::{FrameSink, GenericBufSender, ImmediateFrame}; +use crate::{FrameSink, FrameSinkError, ImmediateFrame}; #[derive(Debug)] pub struct LengthPrefixer { @@ -22,16 +27,76 @@ impl LengthPrefixer { type LengthPrefixedFrame = bytes::buf::Chain, F>; -impl<'a, W, F> FrameSink for &'a mut LengthPrefixer +impl FrameSink for LengthPrefixer where W: AsyncWrite + Send + Unpin, F: Buf + Send, { - type SendFrameFut = GenericBufSender<'a, LengthPrefixedFrame, W>; + // TODO: Remove the `LengthPrefixedFrame` wrapper, make it built into the sender. + type SendFrameFut = LengthPrefixedFrameSender; - fn send_frame(self, frame: F) -> Self::SendFrameFut { + fn send_frame(mut self, frame: F) -> Self::SendFrameFut { let length = frame.remaining() as u16; // TODO: Try into + handle error. - GenericBufSender::new(ImmediateFrame::from(length).chain(frame), &mut self.writer) + LengthPrefixedFrameSender::new(ImmediateFrame::from(length).chain(frame), self.writer) + } +} + +#[pin_project] // TODO: We only need `pin_project` for deriving the `DerefMut` impl we need. +pub struct LengthPrefixedFrameSender { + buf: LengthPrefixedFrame, + out: Option, +} + +impl LengthPrefixedFrameSender { + fn new(buf: LengthPrefixedFrame, out: W) -> Self { + Self { + buf, + out: Some(out), + } + } +} + +impl Future for LengthPrefixedFrameSender +where + F: Buf, + W: AsyncWrite + Unpin, +{ + type Output = Result, FrameSinkError>; + + fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + let mut out = self + .out + .take() + .expect("(unfused) GenericBufSender polled after completion"); + + let mref = self.get_mut(); + let out = loop { + let LengthPrefixedFrameSender { ref mut buf, .. } = mref; + + let current_slice = buf.chunk(); + let out_pinned = Pin::new(&mut out); + + match out_pinned.poll_write(cx, current_slice) { + Poll::Ready(Ok(bytes_written)) => { + // Record the number of bytes written. + buf.advance(bytes_written); + if !buf.has_remaining() { + // All bytes written, return success. + return Poll::Ready(Ok(LengthPrefixer::new(out))); + } + // We have more data to write, and `out` has not stalled yet, try to send more. + } + // An error occured writing, we can just return it. + Poll::Ready(Err(error)) => return Poll::Ready(Err(error.into())), + // No writing possible, simply return pending. + Poll::Pending => { + break out; + } + } + }; + + mref.out = Some(out); + Poll::Pending } } From c3f220314ee72c2c6c0a13170c27cb9c5be83ca4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 11:25:32 +0200 Subject: [PATCH 015/735] Replace length prefixing functionality with simple function --- src/length_prefixed.rs | 145 +++++++++-------------------------------- 1 file changed, 31 insertions(+), 114 deletions(-) diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index 240e3fe584..566d27ad71 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -1,131 +1,48 @@ -use std::{ - marker::PhantomData, - pin::Pin, - task::{Context, Poll}, -}; - use bytes::Buf; -use futures::{AsyncWrite, Future}; -use pin_project::pin_project; - -use crate::{FrameSink, FrameSinkError, ImmediateFrame}; - -#[derive(Debug)] -pub struct LengthPrefixer { - writer: W, - _frame_phantom: PhantomData, -} - -impl LengthPrefixer { - pub fn new(writer: W) -> Self { - Self { - writer, - _frame_phantom: PhantomData, - } - } -} +use thiserror::Error; -type LengthPrefixedFrame = bytes::buf::Chain, F>; +use crate::ImmediateFrame; -impl FrameSink for LengthPrefixer -where - W: AsyncWrite + Send + Unpin, - F: Buf + Send, -{ - // TODO: Remove the `LengthPrefixedFrame` wrapper, make it built into the sender. - type SendFrameFut = LengthPrefixedFrameSender; - - fn send_frame(mut self, frame: F) -> Self::SendFrameFut { - let length = frame.remaining() as u16; // TODO: Try into + handle error. - LengthPrefixedFrameSender::new(ImmediateFrame::from(length).chain(frame), self.writer) - } +/// A frame prefix conversion error. +#[derive(Debug, Error)] +pub enum Error { + /// The frame's length cannot be represented with the prefix. + #[error("frame too long {actual}/{max}")] + FrameTooLong { actual: usize, max: usize }, } -#[pin_project] // TODO: We only need `pin_project` for deriving the `DerefMut` impl we need. -pub struct LengthPrefixedFrameSender { - buf: LengthPrefixedFrame, - out: Option, -} - -impl LengthPrefixedFrameSender { - fn new(buf: LengthPrefixedFrame, out: W) -> Self { - Self { - buf, - out: Some(out), - } - } -} - -impl Future for LengthPrefixedFrameSender -where - F: Buf, - W: AsyncWrite + Unpin, -{ - type Output = Result, FrameSinkError>; - - fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { - let mut out = self - .out - .take() - .expect("(unfused) GenericBufSender polled after completion"); - - let mref = self.get_mut(); - let out = loop { - let LengthPrefixedFrameSender { ref mut buf, .. } = mref; - - let current_slice = buf.chunk(); - let out_pinned = Pin::new(&mut out); - - match out_pinned.poll_write(cx, current_slice) { - Poll::Ready(Ok(bytes_written)) => { - // Record the number of bytes written. - buf.advance(bytes_written); - if !buf.has_remaining() { - // All bytes written, return success. - return Poll::Ready(Ok(LengthPrefixer::new(out))); - } - // We have more data to write, and `out` has not stalled yet, try to send more. - } - // An error occured writing, we can just return it. - Poll::Ready(Err(error)) => return Poll::Ready(Err(error.into())), - // No writing possible, simply return pending. - Poll::Pending => { - break out; - } - } - }; - - mref.out = Some(out); - Poll::Pending - } +/// A frame that has had a length prefix added. +pub type LengthPrefixedFrame = bytes::buf::Chain, F>; + +/// Adds a length prefix to the given frame. +pub fn frame_add_length_prefix(frame: F) -> Result, Error> { + let remaining = frame.remaining(); + let length: u16 = remaining.try_into().map_err(|_err| Error::FrameTooLong { + actual: remaining, + max: u16::MAX as usize, + })?; + Ok(ImmediateFrame::from(length).chain(frame)) } #[cfg(test)] mod tests { - use crate::{length_prefixed::LengthPrefixer, FrameSink}; + use std::io::Read; - #[tokio::test] - async fn length_prefixer_single_frame_works() { - let mut output = Vec::new(); + use bytes::Buf; - let mut lp = LengthPrefixer::new(&mut output); - let frame = &b"abcdefg"[..]; - - assert!(lp.send_frame(frame).await.is_ok()); + use super::frame_add_length_prefix; - assert_eq!(output.as_slice(), b"\x07\x00abcdefg"); - } + #[test] + fn length_prefixing_of_single_frame_works() { + let frame = &b"abcdefg"[..]; + let prefixed = frame_add_length_prefix(frame).expect("prefixing failed"); - #[tokio::test] - async fn length_prefixer_multi_frame_works() { let mut output = Vec::new(); + prefixed + .reader() + .read_to_end(&mut output) + .expect("failed to read"); - let mut lp = LengthPrefixer::new(&mut output); - - assert!(lp.send_frame(&b"one"[..]).await.is_ok()); - assert!(lp.send_frame(&b"two"[..]).await.is_ok()); - assert!(lp.send_frame(&b"three"[..]).await.is_ok()); - - assert_eq!(output.as_slice(), b"\x03\x00one\x03\x00two\x05\x00three"); + assert_eq!(output, b"\x07\x00abcdefg"); } } From f3b7b8d9d74b17a1e373fd615b80349f37e2ba1b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 12:17:42 +0200 Subject: [PATCH 016/735] Add tetst for error conditions of length prefixed --- src/length_prefixed.rs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index 566d27ad71..e3e57c79da 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -30,6 +30,8 @@ mod tests { use bytes::Buf; + use crate::length_prefixed::Error; + use super::frame_add_length_prefix; #[test] @@ -45,4 +47,16 @@ mod tests { assert_eq!(output, b"\x07\x00abcdefg"); } + + #[test] + fn large_frames_reject() { + let frame = [0; 1024 * 1024]; + let result = frame_add_length_prefix(&frame[..]); + + assert!(matches!( + result, + Err(Error::FrameTooLong { actual, max }) + if actual == frame.len() && max == u16::MAX as usize + )) + } } From 386864627f659f768956ea0c68f4111bdf1ab878 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 12:39:38 +0200 Subject: [PATCH 017/735] Rewrite chunking to user iterator based chunking --- Cargo.lock | 21 ---- Cargo.toml | 1 - src/chunked.rs | 218 ++++++++++++++++------------------------- src/length_prefixed.rs | 13 +-- src/lib.rs | 89 +++-------------- 5 files changed, 99 insertions(+), 243 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index e3d6ca6848..fd404e2bd6 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -197,7 +197,6 @@ dependencies = [ "anyhow", "bytes", "futures", - "pin-project", "thiserror", "tokio", "tokio-util", @@ -251,26 +250,6 @@ dependencies = [ "windows-sys", ] -[[package]] -name = "pin-project" -version = "1.0.10" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "58ad3879ad3baf4e44784bc6a718a8698867bb991f8ce24d1bcbe2cfb4c3a75e" -dependencies = [ - "pin-project-internal", -] - -[[package]] -name = "pin-project-internal" -version = "1.0.10" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "744b6f092ba29c3650faf274db506afd39944f48420f6c86b17cfe0ee1cb36bb" -dependencies = [ - "proc-macro2", - "quote", - "syn", -] - [[package]] name = "pin-project-lite" version = "0.2.9" diff --git a/Cargo.toml b/Cargo.toml index 34582df55d..7bd2a41e14 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -9,7 +9,6 @@ edition = "2021" anyhow = "1.0.57" bytes = "1.1.0" futures = "0.3.21" -pin-project = "1.0.10" thiserror = "1.0.31" tokio = { version = "1.18.1", features = ["full"] } tokio-util = { version = "0.7.1", features = ["codec"] } diff --git a/src/chunked.rs b/src/chunked.rs index 03d2b29ba5..843278ff67 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -1,132 +1,86 @@ -// use std::{ -// pin::Pin, -// task::{Context, Poll}, -// }; - -// use bytes::{Buf, Bytes}; -// use futures::{future::BoxFuture, Future, FutureExt}; -// use pin_project::pin_project; - -// use crate::{FrameSink, FrameSinkError, ImmediateFrame}; - -// // use std::marker::PhantomData; - -// // use bytes::{Buf, Bytes}; - -// // use crate::{FrameSink, GenericBufSender}; - -// // #[derive(Debug)] -// // pub struct Chunker { -// // frame_sink: S, -// // _frame_phantom: PhantomData, -// // } - -// trait Foo { -// type Fut: Future; - -// fn mk_fut(self) -> Self::Fut; -// } - -// type SingleChunk = bytes::buf::Chain, Bytes>; - -// /// TODO: Turn into non-anonymous future with zero allocations. -// async fn x(frame: B, chunk_size: usize, mut sink: S) -> Result<(), FrameSinkError> -// where -// B: Buf, -// for<'a> &'a mut S: FrameSink, -// { -// for chunk in chunk_frame(frame, chunk_size) { -// sink.send_frame(chunk).await?; -// } -// Ok(()) -// } - -// /// Chunks a frame into ready-to-send chunks. -// /// -// /// # Notes -// /// -// /// Internally, data is copied into chunks by using `Buf::copy_to_bytes`. It is advisable to use a -// /// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. -// fn chunk_frame(mut frame: B, chunk_size: usize) -> impl Iterator { -// let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; - -// let chunk_id_ceil: u8 = num_frames.try_into().unwrap(); - -// (0..num_frames).into_iter().map(move |n| { -// let chunk_id = if n == 0 { -// chunk_id_ceil -// } else { -// // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. -// n as u8 -// }; - -// let chunk_data = frame.copy_to_bytes(chunk_size); -// ImmediateFrame::from(chunk_id).chain(chunk_data) -// }) -// } - -// #[pin_project] -// struct ChunkSender { -// chunks: Box>, -// chunk_in_progress: Option> + Send>>, -// sink: Option, -// } - -// impl Future for ChunkSender -// where -// S: FrameSink, -// { -// type Output = Result<(), FrameSinkError>; - -// fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { -// match self.chunks.next() { -// Some(current_chunk) => { -// let sink = self.sink.take().unwrap(); // TODO - -// let mut fut: Pin< -// Box> + Send + Unpin>, -// > = sink.send_frame(current_chunk).boxed(); - -// // TODO: Simplify? -// let mut pinned_fut = Pin::new(&mut fut); -// match pinned_fut.poll(cx) { -// Poll::Ready(_) => { -// todo!() -// } -// Poll::Pending => { -// // Store the future for future polling. -// self.chunk_in_progress = Some(Pin::into_inner(fut)); - -// // We need to wait to make progress. -// Poll::Pending -// } -// } -// } -// None => { -// // We're all done sending. -// Poll::Ready(Ok(())) -// } -// } -// } -// } -// // END NEW - -// // // TODO: Use special single-byte prefix type. -// // type SingleChunk; -// // struct SingleChunk { - -// // } - -// // impl<'a, S, F> FrameSink for &'a mut Chunker -// // where -// // F: Buf + Send, -// // { -// // type SendFrameFut = GenericBufSender<'a, ChunkedFrames, W>; - -// // fn send_frame(self, frame: F) -> Self::SendFrameFut { -// // todo!() -// // // let length = frame.remaining() as u64; // TODO: Try into + handle error. -// // // let length_prefixed_frame = Bytes::copy_from_slice(&length.to_le_bytes()).chain(frame); -// // // GenericBufSender::new(length_prefixed_frame, &mut self.writer) -// // } -// // } +use bytes::{Buf, Bytes}; +use thiserror::Error; + +use crate::ImmediateFrame; + +pub type SingleChunk = bytes::buf::Chain, Bytes>; + +#[derive(Debug, Error)] +pub enum Error { + #[error("file of {} be chunked into {chunk_size} byte chunks, exceeds max")] + FrameTooLarge { + chunk_size: usize, + actual_size: usize, + max_size: usize, + }, +} + +/// Chunks a frame into ready-to-send chunks. +/// +/// # Notes +/// +/// Internally, data is copied into chunks by using `Buf::copy_to_bytes`. It is advisable to use a +/// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. +pub fn chunk_frame( + mut frame: B, + chunk_size: usize, +) -> Result, Error> { + let frame_size = frame.remaining(); + let num_frames = (frame_size + chunk_size - 1) / chunk_size; + + let chunk_id_ceil: u8 = num_frames.try_into().map_err(|_err| Error::FrameTooLarge { + chunk_size, + actual_size: frame_size, + max_size: u8::MAX as usize * frame_size, + })?; + + Ok((0..num_frames).into_iter().map(move |n| { + let chunk_id = if n == 0 { + chunk_id_ceil + } else { + // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. + n as u8 + }; + + let next_chunk_size = chunk_size.min(frame.remaining()); + let chunk_data = frame.copy_to_bytes(next_chunk_size); + ImmediateFrame::from(chunk_id).chain(chunk_data) + })) +} + +#[cfg(test)] +mod tests { + use crate::tests::collect_buf; + + use super::chunk_frame; + + #[test] + fn basic_chunking_works() { + let frame = b"01234567890abcdefghijklmno"; + + let chunks: Vec<_> = chunk_frame(&frame[..], 7) + .expect("chunking failed") + .map(collect_buf) + .collect(); + + assert_eq!( + chunks, + vec![ + b"\x040123456".to_vec(), + b"\x017890abc".to_vec(), + b"\x02defghij".to_vec(), + b"\x03klmno".to_vec(), + ] + ); + } + + #[test] + fn chunking_with_maximum_size_works() { + todo!() + } + + #[test] + fn chunking_with_too_large_data_fails() { + todo!() + } +} diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index e3e57c79da..f051fb3a28 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -26,11 +26,7 @@ pub fn frame_add_length_prefix(frame: F) -> Result), -} - -pub trait FrameSink: Sized { - type SendFrameFut: Future> + Send; - - fn send_frame(self, frame: F) -> Self::SendFrameFut; -} pub struct ImmediateFrame { pos: usize, @@ -82,61 +58,18 @@ where } } -#[pin_project] // TODO: We only need `pin_project` for deriving the `DerefMut` impl we need. -pub struct GenericBufSender { - buf: B, - out: Option, -} - -impl GenericBufSender { - fn new(buf: B, out: W) -> Self { - Self { - buf, - out: Some(out), - } - } -} - -impl Future for GenericBufSender -where - B: Buf, - W: AsyncWrite + Unpin, -{ - type Output = Result; - - fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { - let mut out = self - .out - .take() - .expect("(unfused) GenericBufSender polled after completion"); - - let mref = self.get_mut(); - let out = loop { - let GenericBufSender { ref mut buf, .. } = mref; - - let current_slice = buf.chunk(); - let out_pinned = Pin::new(&mut out); +#[cfg(test)] +pub(crate) mod tests { + use std::io::Read; - match out_pinned.poll_write(cx, current_slice) { - Poll::Ready(Ok(bytes_written)) => { - // Record the number of bytes written. - buf.advance(bytes_written); - if !buf.has_remaining() { - // All bytes written, return success. - return Poll::Ready(Ok(out)); - } - // We have more data to write, and `out` has not stalled yet, try to send more. - } - // An error occured writing, we can just return it. - Poll::Ready(Err(error)) => return Poll::Ready(Err(error.into())), - // No writing possible, simply return pending. - Poll::Pending => { - break out; - } - } - }; + use bytes::Buf; - mref.out = Some(out); - Poll::Pending + /// Collects everything inside a `Buf` into a `Vec`. + pub fn collect_buf(buf: B) -> Vec { + let mut vec = Vec::new(); + buf.reader() + .read_to_end(&mut vec) + .expect("reading buf should never fail"); + vec } } From 57529f67b4689544f80b4ca108ff0e028354b62b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 12:55:20 +0200 Subject: [PATCH 018/735] Add more tests and change chunking format to just indicate "more data" --- src/chunked.rs | 85 +++++++++++++++++++++++++++--------------- src/length_prefixed.rs | 4 ++ src/lib.rs | 4 +- 3 files changed, 61 insertions(+), 32 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 843278ff67..e708751c5e 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -1,3 +1,11 @@ +//! Chunks frames into pieces. +//! +//! The wire format for chunks is `NCCC...` where `CCC...` is the data chunk and `N` is the +//! continuation byte, which is `0x00` if more chunks are following, `0xFF` if this is the frame's +//! last chunk. + +use std::num::NonZeroUsize; + use bytes::{Buf, Bytes}; use thiserror::Error; @@ -5,6 +13,12 @@ use crate::ImmediateFrame; pub type SingleChunk = bytes::buf::Chain, Bytes>; +/// Indicator that more chunks are following. +const MORE_CHUNKS: u8 = 0x00; + +/// Final chunk indicator. +const FINAL_CHUNK: u8 = 0xFF; + #[derive(Debug, Error)] pub enum Error { #[error("file of {} be chunked into {chunk_size} byte chunks, exceeds max")] @@ -23,28 +37,21 @@ pub enum Error { /// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. pub fn chunk_frame( mut frame: B, - chunk_size: usize, + chunk_size: NonZeroUsize, ) -> Result, Error> { - let frame_size = frame.remaining(); - let num_frames = (frame_size + chunk_size - 1) / chunk_size; - - let chunk_id_ceil: u8 = num_frames.try_into().map_err(|_err| Error::FrameTooLarge { - chunk_size, - actual_size: frame_size, - max_size: u8::MAX as usize * frame_size, - })?; - - Ok((0..num_frames).into_iter().map(move |n| { - let chunk_id = if n == 0 { - chunk_id_ceil + let chunk_size: usize = chunk_size.into(); + let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; + + Ok((0..num_frames).into_iter().map(move |_| { + let remaining = frame.remaining().min(chunk_size); + let chunk_data = frame.copy_to_bytes(remaining); + + let continuation_byte: u8 = if frame.has_remaining() { + MORE_CHUNKS } else { - // Will never overflow, since `chunk_id_ceil` already fits into a `u8`. - n as u8 + FINAL_CHUNK }; - - let next_chunk_size = chunk_size.min(frame.remaining()); - let chunk_data = frame.copy_to_bytes(next_chunk_size); - ImmediateFrame::from(chunk_id).chain(chunk_data) + ImmediateFrame::from(continuation_byte).chain(chunk_data) })) } @@ -58,7 +65,7 @@ mod tests { fn basic_chunking_works() { let frame = b"01234567890abcdefghijklmno"; - let chunks: Vec<_> = chunk_frame(&frame[..], 7) + let chunks: Vec<_> = chunk_frame(&frame[..], 7.try_into().unwrap()) .expect("chunking failed") .map(collect_buf) .collect(); @@ -66,21 +73,39 @@ mod tests { assert_eq!( chunks, vec![ - b"\x040123456".to_vec(), - b"\x017890abc".to_vec(), - b"\x02defghij".to_vec(), - b"\x03klmno".to_vec(), + b"\x000123456".to_vec(), + b"\x007890abc".to_vec(), + b"\x00defghij".to_vec(), + b"\xffklmno".to_vec(), ] ); - } - #[test] - fn chunking_with_maximum_size_works() { - todo!() + // Try with a chunk size that ends exactly on the frame boundary. + let frame = b"012345"; + let chunks: Vec<_> = chunk_frame(&frame[..], 3.try_into().unwrap()) + .expect("chunking failed") + .map(collect_buf) + .collect(); + + assert_eq!(chunks, vec![b"\x00012".to_vec(), b"\xff345".to_vec(),]); } #[test] - fn chunking_with_too_large_data_fails() { - todo!() + fn chunking_for_small_size_works() { + let frame = b"012345"; + let chunks: Vec<_> = chunk_frame(&frame[..], 6.try_into().unwrap()) + .expect("chunking failed") + .map(collect_buf) + .collect(); + + assert_eq!(chunks, vec![b"\xff012345".to_vec()]); + + // Try also with mismatched chunk size. + let chunks: Vec<_> = chunk_frame(&frame[..], 15.try_into().unwrap()) + .expect("chunking failed") + .map(collect_buf) + .collect(); + + assert_eq!(chunks, vec![b"\xff012345".to_vec()]); } } diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index f051fb3a28..a222802d92 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -1,3 +1,7 @@ +//! Length prefixed chunking. +//! +//! Prefixes frames with their length, which is hard coded at 16 bit little endian ints. + use bytes::Buf; use thiserror::Error; diff --git a/src/lib.rs b/src/lib.rs index d61a5c1eec..fb958a16f7 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,5 +1,5 @@ -mod chunked; -mod length_prefixed; +pub mod chunked; +pub mod length_prefixed; use bytes::Buf; From ce37ae041fdfc098b7b968c056880e067aead2f9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 12:57:53 +0200 Subject: [PATCH 019/735] Add documentation for immediate frame --- src/lib.rs | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/lib.rs b/src/lib.rs index fb958a16f7..cd02a7eb32 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -3,8 +3,11 @@ pub mod length_prefixed; use bytes::Buf; +/// A frame for stack allocated data. pub struct ImmediateFrame { + /// How much of the frame has been read. pos: usize, + /// The actual value contained. value: A, } From f6a9685e6b9af089575ba18b791ee30efd2632c6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 13:13:58 +0200 Subject: [PATCH 020/735] Refactor into shared error that accompany underlying sink failures --- src/chunked.rs | 13 +------------ src/error.rs | 16 ++++++++++++++++ src/length_prefixed.rs | 23 +++++++++-------------- src/lib.rs | 30 +++++++++++++++++++++++++++++- 4 files changed, 55 insertions(+), 27 deletions(-) create mode 100644 src/error.rs diff --git a/src/chunked.rs b/src/chunked.rs index e708751c5e..da3a2d9c78 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -7,9 +7,8 @@ use std::num::NonZeroUsize; use bytes::{Buf, Bytes}; -use thiserror::Error; -use crate::ImmediateFrame; +use crate::{error::Error, ImmediateFrame}; pub type SingleChunk = bytes::buf::Chain, Bytes>; @@ -19,16 +18,6 @@ const MORE_CHUNKS: u8 = 0x00; /// Final chunk indicator. const FINAL_CHUNK: u8 = 0xFF; -#[derive(Debug, Error)] -pub enum Error { - #[error("file of {} be chunked into {chunk_size} byte chunks, exceeds max")] - FrameTooLarge { - chunk_size: usize, - actual_size: usize, - max_size: usize, - }, -} - /// Chunks a frame into ready-to-send chunks. /// /// # Notes diff --git a/src/error.rs b/src/error.rs new file mode 100644 index 0000000000..60764b2b0e --- /dev/null +++ b/src/error.rs @@ -0,0 +1,16 @@ +use std::convert::Infallible; + +use thiserror::Error; + +/// A frame prefix conversion error. +#[derive(Debug, Error)] +pub enum Error +where + E: std::error::Error, +{ + /// The frame's length cannot be represented with the prefix. + #[error("frame too long {actual}/{max}")] + FrameTooLong { actual: usize, max: usize }, + #[error(transparent)] + Sink(#[from] E), +} diff --git a/src/length_prefixed.rs b/src/length_prefixed.rs index a222802d92..e2a536405f 100644 --- a/src/length_prefixed.rs +++ b/src/length_prefixed.rs @@ -3,23 +3,16 @@ //! Prefixes frames with their length, which is hard coded at 16 bit little endian ints. use bytes::Buf; -use thiserror::Error; -use crate::ImmediateFrame; - -/// A frame prefix conversion error. -#[derive(Debug, Error)] -pub enum Error { - /// The frame's length cannot be represented with the prefix. - #[error("frame too long {actual}/{max}")] - FrameTooLong { actual: usize, max: usize }, -} +use crate::{error::Error, ImmediateFrame}; /// A frame that has had a length prefix added. pub type LengthPrefixedFrame = bytes::buf::Chain, F>; /// Adds a length prefix to the given frame. -pub fn frame_add_length_prefix(frame: F) -> Result, Error> { +pub fn frame_add_length_prefix( + frame: F, +) -> Result, Error> { let remaining = frame.remaining(); let length: u16 = remaining.try_into().map_err(|_err| Error::FrameTooLong { actual: remaining, @@ -30,14 +23,16 @@ pub fn frame_add_length_prefix(frame: F) -> Result(frame).expect("prefixing failed"); let output = collect_buf(prefixed); assert_eq!(output, b"\x07\x00abcdefg"); @@ -46,7 +41,7 @@ mod tests { #[test] fn large_frames_reject() { let frame = [0; 1024 * 1024]; - let result = frame_add_length_prefix(&frame[..]); + let result = frame_add_length_prefix::<_, Infallible>(&frame[..]); assert!(matches!( result, diff --git a/src/lib.rs b/src/lib.rs index cd02a7eb32..425784517e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,4 +1,5 @@ pub mod chunked; +pub mod error; pub mod length_prefixed; use bytes::Buf; @@ -65,7 +66,10 @@ where pub(crate) mod tests { use std::io::Read; - use bytes::Buf; + use bytes::{Buf, Bytes}; + use futures::{future, SinkExt}; + + use crate::length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}; /// Collects everything inside a `Buf` into a `Vec`. pub fn collect_buf(buf: B) -> Vec { @@ -75,4 +79,28 @@ pub(crate) mod tests { .expect("reading buf should never fail"); vec } + + /// Test an "end-to-end" instance of the assembled pipeline for sending. + #[tokio::test] + async fn chunked_length_prefixed_sink() { + let base_sink: Vec> = Vec::new(); + + let mut length_prefixed_sink = + base_sink.with(|frame| future::ready(frame_add_length_prefix(frame))); + + let sample_data = Bytes::from(&b"abcdef"[..]); + + length_prefixed_sink + .send(sample_data) + .await + .expect("send failed"); + + let chunks: Vec<_> = length_prefixed_sink + .into_inner() + .into_iter() + .map(collect_buf) + .collect(); + + assert_eq!(chunks, vec![b"\x06\x00abcdef".to_vec()]) + } } From 8b51259f3b17309082c356c0bf14c720580d9cd9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 13:26:03 +0200 Subject: [PATCH 021/735] Add tests for entire "product" --- src/lib.rs | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 425784517e..6092f8b984 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -67,9 +67,13 @@ pub(crate) mod tests { use std::io::Read; use bytes::{Buf, Bytes}; - use futures::{future, SinkExt}; + use futures::{future, stream, SinkExt}; - use crate::length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}; + use crate::{ + chunked::{chunk_frame, SingleChunk}, + error::Error, + length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, + }; /// Collects everything inside a `Buf` into a `Vec`. pub fn collect_buf(buf: B) -> Vec { @@ -83,24 +87,30 @@ pub(crate) mod tests { /// Test an "end-to-end" instance of the assembled pipeline for sending. #[tokio::test] async fn chunked_length_prefixed_sink() { - let base_sink: Vec> = Vec::new(); + let base_sink: Vec> = Vec::new(); - let mut length_prefixed_sink = + let length_prefixed_sink = base_sink.with(|frame| future::ready(frame_add_length_prefix(frame))); + let mut chunked_sink = length_prefixed_sink.with_flat_map(|frame| { + let chunk_iter = chunk_frame(frame, 5.try_into().unwrap()).expect("TODO: Handle error"); + stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) + }); + let sample_data = Bytes::from(&b"abcdef"[..]); - length_prefixed_sink - .send(sample_data) - .await - .expect("send failed"); + chunked_sink.send(sample_data).await.expect("send failed"); - let chunks: Vec<_> = length_prefixed_sink + let chunks: Vec<_> = chunked_sink + .into_inner() .into_inner() .into_iter() .map(collect_buf) .collect(); - assert_eq!(chunks, vec![b"\x06\x00abcdef".to_vec()]) + assert_eq!( + chunks, + vec![b"\x06\x00\x00abcde".to_vec(), b"\x02\x00\xfff".to_vec()] + ) } } From 642dea91d9be05ba2621fb781e6053f813e811d7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 15:43:21 +0200 Subject: [PATCH 022/735] Remove unused dependency `tokio-util` --- Cargo.lock | 53 ----------------------------------------------------- Cargo.toml | 1 - 2 files changed, 54 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index fd404e2bd6..e9686bd64f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -130,12 +130,6 @@ dependencies = [ "libc", ] -[[package]] -name = "lazy_static" -version = "1.4.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646" - [[package]] name = "libc" version = "0.2.125" @@ -199,7 +193,6 @@ dependencies = [ "futures", "thiserror", "tokio", - "tokio-util", ] [[package]] @@ -388,52 +381,6 @@ dependencies = [ "syn", ] -[[package]] -name = "tokio-util" -version = "0.7.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0edfdeb067411dba2044da6d1cb2df793dd35add7888d73c16e3381ded401764" -dependencies = [ - "bytes", - "futures-core", - "futures-sink", - "pin-project-lite", - "tokio", - "tracing", -] - -[[package]] -name = "tracing" -version = "0.1.34" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5d0ecdcb44a79f0fe9844f0c4f33a342cbcbb5117de8001e6ba0dc2351327d09" -dependencies = [ - "cfg-if", - "pin-project-lite", - "tracing-attributes", - "tracing-core", -] - -[[package]] -name = "tracing-attributes" -version = "0.1.21" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cc6b8ad3567499f98a1db7a752b07a7c8c7c7c34c332ec00effb2b0027974b7c" -dependencies = [ - "proc-macro2", - "quote", - "syn", -] - -[[package]] -name = "tracing-core" -version = "0.1.26" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f54c8ca710e81886d498c2fd3331b56c93aa248d49de2222ad2742247c60072f" -dependencies = [ - "lazy_static", -] - [[package]] name = "unicode-xid" version = "0.2.3" diff --git a/Cargo.toml b/Cargo.toml index 7bd2a41e14..9d43b8d17f 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -11,4 +11,3 @@ bytes = "1.1.0" futures = "0.3.21" thiserror = "1.0.31" tokio = { version = "1.18.1", features = ["full"] } -tokio-util = { version = "0.7.1", features = ["codec"] } From a98c34cd88f86b8028886a7122275d4ff8bb9d83 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 May 2022 20:53:17 +0200 Subject: [PATCH 023/735] Add draft for multiplexing code --- Cargo.lock | 14 +++++++++ Cargo.toml | 1 + src/lib.rs | 2 ++ src/mux.rs | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 100 insertions(+) create mode 100644 src/mux.rs diff --git a/Cargo.lock b/Cargo.lock index e9686bd64f..3d0685c8e3 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -193,6 +193,7 @@ dependencies = [ "futures", "thiserror", "tokio", + "tokio-util", ] [[package]] @@ -381,6 +382,19 @@ dependencies = [ "syn", ] +[[package]] +name = "tokio-util" +version = "0.7.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f988a1a1adc2fb21f9c12aa96441da33a1728193ae0b95d2be22dbd17fcb4e5c" +dependencies = [ + "bytes", + "futures-core", + "futures-sink", + "pin-project-lite", + "tokio", +] + [[package]] name = "unicode-xid" version = "0.2.3" diff --git a/Cargo.toml b/Cargo.toml index 9d43b8d17f..8ea1cb58ff 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -11,3 +11,4 @@ bytes = "1.1.0" futures = "0.3.21" thiserror = "1.0.31" tokio = { version = "1.18.1", features = ["full"] } +tokio-util = "0.7.2" diff --git a/src/lib.rs b/src/lib.rs index 6092f8b984..5c3a132501 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,10 +1,12 @@ pub mod chunked; pub mod error; pub mod length_prefixed; +pub mod mux; use bytes::Buf; /// A frame for stack allocated data. +#[derive(Debug)] pub struct ImmediateFrame { /// How much of the frame has been read. pos: usize, diff --git a/src/mux.rs b/src/mux.rs new file mode 100644 index 0000000000..ec02bf2f1f --- /dev/null +++ b/src/mux.rs @@ -0,0 +1,83 @@ +//! Stream multiplexing +//! +//! Multiplexes multiple sink into a single one, allowing no more than one frame to be buffered for +//! each to avoid starving or flooding. + +use std::{fmt::Debug, pin::Pin, sync::Arc}; + +use bytes::Buf; +use futures::{Future, Sink, SinkExt}; +use tokio::sync::{mpsc, OwnedSemaphorePermit, Semaphore}; +use tokio_util::sync::{PollSendError, PollSender}; + +use crate::{error::Error, ImmediateFrame}; + +pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; + +type SendTaskPayload = (OwnedSemaphorePermit, ChannelPrefixedFrame); + +#[derive(Debug)] +struct Muxtable { + /// A collection of synchronization primitives indicating whether or not a message is currently + /// being processed for a specific subchannel. + // Note: A manual `Sink` implementation could probably poll an `AtomicBool` here and on failure + // register to be woken up again, but for now we have to make do with the semaphore here. + slots: Vec>, + /// Sender where outgoing frames go. + sender: mpsc::Sender>, +} + +struct Muxhandle { + table: Arc>, +} + +impl Muxtable +where + F: Buf + Send + Debug + 'static, +{ + pub fn new(num_slots: u8, mut sink: S) -> (impl Future, Self) + where + S: Sink> + Unpin, + { + let (sender, mut receiver) = mpsc::channel(num_slots as usize); + + let send_task = async move { + let mut pinned_sink = Pin::new(&mut sink); + + while let Some((_permit, channel_frame)) = receiver.recv().await { + pinned_sink + .send(channel_frame) + .await + .unwrap_or_else(|_sink_err| { + todo!("handle sink error, closing all semaphores as well") + }); + // Permit will automatically be dropped once the loop iteration finishes. + } + }; + let muxtable = Muxtable { + slots: (0..(num_slots as usize)) + .into_iter() + .map(|_| Arc::new(Semaphore::new(1))) + .collect(), + sender, + }; + + (send_task, muxtable) + } + + pub fn muxed_channel_handle( + &self, + channel: u8, + ) -> impl Sink>>> { + let poll_sender = PollSender::new(self.sender.clone()); + let slot = self.slots[channel as usize].clone(); // TODO: Error if slot missing. + + poll_sender.with(move |frame| { + let fut_slot = slot.clone(); + async move { + let permit = fut_slot.acquire_owned().await.expect("TODO"); + Ok((permit, ImmediateFrame::from(channel).chain(frame))) + } + }) + } +} From 28d1743679185c3761b0d336682ffb6f027b6396 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 19 May 2022 14:41:54 +0200 Subject: [PATCH 024/735] Make test easier to read --- src/lib.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 5c3a132501..396c4a2feb 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -99,7 +99,7 @@ pub(crate) mod tests { stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) }); - let sample_data = Bytes::from(&b"abcdef"[..]); + let sample_data = Bytes::from(&b"QRSTUV"[..]); chunked_sink.send(sample_data).await.expect("send failed"); @@ -112,7 +112,7 @@ pub(crate) mod tests { assert_eq!( chunks, - vec![b"\x06\x00\x00abcde".to_vec(), b"\x02\x00\xfff".to_vec()] + vec![b"\x06\x00\x00QRSTU".to_vec(), b"\x02\x00\xffV".to_vec()] ) } } From d52b1b817eef7de17931f8326b81701f4ee4267f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 23 May 2022 12:52:05 +0200 Subject: [PATCH 025/735] Add first draft for backpressure implementation --- src/backpressured.rs | 103 +++++++++++++++++++++++++++++++++++++++++++ src/lib.rs | 1 + 2 files changed, 104 insertions(+) create mode 100644 src/backpressured.rs diff --git a/src/backpressured.rs b/src/backpressured.rs new file mode 100644 index 0000000000..ef7979b0f0 --- /dev/null +++ b/src/backpressured.rs @@ -0,0 +1,103 @@ +use std::{ + marker::PhantomData, + pin::Pin, + task::{Context, Poll}, +}; + +use futures::{Sink, SinkExt, Stream, StreamExt}; + +/// A back-pressuring sink. +/// +/// Combines a stream of ACKs with a sink that will count requests and expect an appropriate amount +/// of ACKs to flow back through it. +pub struct BackpressuredSink { + inner: S, + ack_stream: A, + _phantom: PhantomData, + highest_ack: u64, + last_request: u64, // start at 1 + window_size: u64, +} + +impl BackpressuredSink { + /// Constructs a new backpressured sink. + pub fn new(inner: S, ack_stream: A, window_size: u64) -> Self { + Self { + inner, + ack_stream, + _phantom: PhantomData, + highest_ack: 0, + last_request: 1, + window_size, + } + } +} + +impl Sink for BackpressuredSink +where + // TODO: `Unpin` trait bounds can be removed by using `map_unchecked` if necessary. + S: Sink + Unpin, + Self: Unpin, + A: Stream + Unpin, // TODO: Weave in error from stream. +{ + type Error = >::Error; + + #[inline] + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = Pin::into_inner(self); + + // TODO: Describe deadlock-freeness. + + // Attempt to read as many ACKs as possible. + loop { + match self_mut.ack_stream.poll_next_unpin(cx) { + Poll::Ready(Some(new_highest_ack)) => { + if new_highest_ack > self_mut.last_request { + todo!("got an ACK for a request we did not send"); + } + + if new_highest_ack <= self_mut.highest_ack { + todo!("got an ACK that is equal or less than a previously received one") + } + + self_mut.highest_ack = new_highest_ack; + } + Poll::Ready(None) => { + todo!("ACK stream has been closed, exit"); + } + Poll::Pending => { + // We have no more ACKs to read. If we have capacity, we can continue, otherwise + // return pending. + if self_mut.highest_ack + self_mut.window_size >= self_mut.last_request { + break; + } + + return Poll::Pending; + } + } + } + + // We have slots available, it is up to the wrapped sink to accept them. + self_mut.inner.poll_ready_unpin(cx) + } + + #[inline] + fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error> { + // We already know there are slots available, increase request count, then forward to sink. + let self_mut = Pin::into_inner(self); + + self_mut.last_request += 1; + + self_mut.inner.start_send_unpin(item) + } + + #[inline] + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().inner.poll_flush_unpin(cx) + } + + #[inline] + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().inner.poll_close_unpin(cx) + } +} diff --git a/src/lib.rs b/src/lib.rs index 396c4a2feb..5ee0d1bdde 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,3 +1,4 @@ +pub mod backpressured; pub mod chunked; pub mod error; pub mod length_prefixed; From 099b01c024dc65bde5fe8893bc3b81d4c1e1f2c2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 23 May 2022 12:59:33 +0200 Subject: [PATCH 026/735] Add docs for `backpressured` as a mission statement --- src/backpressured.rs | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/backpressured.rs b/src/backpressured.rs index ef7979b0f0..9589516eba 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -1,3 +1,22 @@ +//! Backpressured sink and stream. +//! +//! Backpressure is notifying the sender of data that no more data can be sent without the receiver +//! running out of resources to process it. +//! +//! "Natural" backpressure is already built into TCP itself, which has limited send and receive +//! buffers: If a receiver is not reading fast enough, the sender is ultimately forced to buffer +//! more data locally or pause sending. +//! +//! The issue with this type of implementation is that if multiple channels (see [`crate::mux`]) are +//! used across a shared TCP connection, a single blocking channel will block all the other channel +//! (see [Head-of-line blocking](https://en.wikipedia.org/wiki/Head-of-line_blocking)). Furthermore, +//! deadlocks can occur if the data sent is a request which requires a response - should two peers +//! make requests of each other at the same and end up backpressured, they may end up simultaneously +//! waiting for the other peer to make progress. +//! +//! This module allows implementing backpressure over sinks and streams, which can be organized in a +//! multiplexed setup, guaranteed to not be impeding the flow of other channels. + use std::{ marker::PhantomData, pin::Pin, From 50911e0cf2dad8b20382cdccde14a4fadf25d24b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 23 May 2022 13:17:12 +0200 Subject: [PATCH 027/735] Complete `backpressure` docs and update algorithm for figuring out actual backpressure --- src/backpressured.rs | 49 +++++++++++++++++++++++++++++++------------- 1 file changed, 35 insertions(+), 14 deletions(-) diff --git a/src/backpressured.rs b/src/backpressured.rs index 9589516eba..bac5bd129d 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -27,27 +27,46 @@ use futures::{Sink, SinkExt, Stream, StreamExt}; /// A back-pressuring sink. /// -/// Combines a stream of ACKs with a sink that will count requests and expect an appropriate amount -/// of ACKs to flow back through it. +/// Combines a stream `A` of acknoledgements (ACKs) with a sink `S` that will count items in flight +/// and expect an appropriate amount of ACKs to flow back through it. +/// +/// In other words, the `BackpressuredSink` will send `window_size` items at most to the sink +/// without expecting to have received one or more ACK through the `ack_stream`. +/// +/// The ACKs sent back must be `u64`s, the sink will expect to receive at most one ACK per item +/// sent. The first sent item is expected to receive an ACK of `1u64`, the second `2u64` and so on. +/// +/// ACKs may not be sent out of order, but may be combined - an ACK of `n` implicitly indicates ACKs +/// for all previously unsent ACKs less than `n`. pub struct BackpressuredSink { + /// The inner sink that items will be forwarded to. inner: S, + /// A stream of integers representing ACKs, see struct documentation for details. ack_stream: A, - _phantom: PhantomData, - highest_ack: u64, - last_request: u64, // start at 1 + /// The highest ACK received so far. + next_expected_ack: u64, + /// The number of the next request to be sent. + next_request: u64, + /// Additional number of items to buffer on inner sink before awaiting ACKs (can be 0, which + /// still allows for one item). window_size: u64, + /// Phantom data required to include `Item` in the type. + _phantom: PhantomData, } impl BackpressuredSink { /// Constructs a new backpressured sink. + /// + /// `window_size` is the maximum number of additional items to send after the first one without + /// awaiting ACKs for already sent ones (a size of `0` still allows for one item to be sent). pub fn new(inner: S, ack_stream: A, window_size: u64) -> Self { Self { inner, ack_stream, - _phantom: PhantomData, - highest_ack: 0, - last_request: 1, + next_expected_ack: 1, + next_request: 0, window_size, + _phantom: PhantomData, } } } @@ -70,24 +89,26 @@ where // Attempt to read as many ACKs as possible. loop { match self_mut.ack_stream.poll_next_unpin(cx) { - Poll::Ready(Some(new_highest_ack)) => { - if new_highest_ack > self_mut.last_request { + Poll::Ready(Some(highest_ack)) => { + if highest_ack >= self_mut.next_request { todo!("got an ACK for a request we did not send"); } - if new_highest_ack <= self_mut.highest_ack { + if highest_ack < self_mut.next_expected_ack { todo!("got an ACK that is equal or less than a previously received one") } - self_mut.highest_ack = new_highest_ack; + self_mut.next_expected_ack = highest_ack + 1; } Poll::Ready(None) => { todo!("ACK stream has been closed, exit"); } Poll::Pending => { + let in_flight = self_mut.next_expected_ack + 1 - self_mut.next_request; + // We have no more ACKs to read. If we have capacity, we can continue, otherwise // return pending. - if self_mut.highest_ack + self_mut.window_size >= self_mut.last_request { + if in_flight <= self_mut.window_size { break; } @@ -105,7 +126,7 @@ where // We already know there are slots available, increase request count, then forward to sink. let self_mut = Pin::into_inner(self); - self_mut.last_request += 1; + self_mut.next_request += 1; self_mut.inner.start_send_unpin(item) } From e939af39a98c20e2ff7622e795a2e83e066d6229 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 23 May 2022 13:34:44 +0200 Subject: [PATCH 028/735] Make backpressure sink work, returning errors instead of panicking with TODOs --- src/backpressured.rs | 48 +++++++++++++++++++++++++++++++++++--------- src/error.rs | 14 +++++++++++++ 2 files changed, 53 insertions(+), 9 deletions(-) diff --git a/src/backpressured.rs b/src/backpressured.rs index bac5bd129d..d45089eea8 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -25,6 +25,8 @@ use std::{ use futures::{Sink, SinkExt, Stream, StreamExt}; +use crate::error::Error; + /// A back-pressuring sink. /// /// Combines a stream `A` of acknoledgements (ACKs) with a sink `S` that will count items in flight @@ -76,9 +78,10 @@ where // TODO: `Unpin` trait bounds can be removed by using `map_unchecked` if necessary. S: Sink + Unpin, Self: Unpin, - A: Stream + Unpin, // TODO: Weave in error from stream. + A: Stream + Unpin, + >::Error: std::error::Error, { - type Error = >::Error; + type Error = Error<>::Error>; #[inline] fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -91,17 +94,38 @@ where match self_mut.ack_stream.poll_next_unpin(cx) { Poll::Ready(Some(highest_ack)) => { if highest_ack >= self_mut.next_request { - todo!("got an ACK for a request we did not send"); + return Poll::Ready(Err(Error::UnexpectedAck { + actual: highest_ack, + expected: self_mut.next_expected_ack, + })); } if highest_ack < self_mut.next_expected_ack { - todo!("got an ACK that is equal or less than a previously received one") + return Poll::Ready(Err(Error::DuplicateAck { + actual: highest_ack, + expected: self_mut.next_expected_ack, + })); } self_mut.next_expected_ack = highest_ack + 1; } Poll::Ready(None) => { - todo!("ACK stream has been closed, exit"); + // The ACK stream has been closed. Close our sink, now that we know, but try to + // flush as much as possible. + match self_mut.inner.poll_close_unpin(cx).map_err(Error::Sink) { + Poll::Ready(Ok(())) => { + // All data has been flushed, we can now safely return an error. + return Poll::Ready(Err(Error::AckStreamClosed)); + } + Poll::Ready(Err(_)) => { + // The was an error polling the ACK stream. + return Poll::Ready(Err(Error::AckStreamError)); + } + Poll::Pending => { + // Data was flushed, but not done yet, keep polling. + return Poll::Pending; + } + } } Poll::Pending => { let in_flight = self_mut.next_expected_ack + 1 - self_mut.next_request; @@ -118,7 +142,7 @@ where } // We have slots available, it is up to the wrapped sink to accept them. - self_mut.inner.poll_ready_unpin(cx) + self_mut.inner.poll_ready_unpin(cx).map_err(Error::Sink) } #[inline] @@ -128,16 +152,22 @@ where self_mut.next_request += 1; - self_mut.inner.start_send_unpin(item) + self_mut.inner.start_send_unpin(item).map_err(Error::Sink) } #[inline] fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().inner.poll_flush_unpin(cx) + self.get_mut() + .inner + .poll_flush_unpin(cx) + .map_err(Error::Sink) } #[inline] fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().inner.poll_close_unpin(cx) + self.get_mut() + .inner + .poll_close_unpin(cx) + .map_err(Error::Sink) } } diff --git a/src/error.rs b/src/error.rs index 60764b2b0e..088d2d85df 100644 --- a/src/error.rs +++ b/src/error.rs @@ -2,6 +2,8 @@ use std::convert::Infallible; use thiserror::Error; +// TODO: It is probably better to nest error instead, to see clearer what is going on. + /// A frame prefix conversion error. #[derive(Debug, Error)] pub enum Error @@ -11,6 +13,18 @@ where /// The frame's length cannot be represented with the prefix. #[error("frame too long {actual}/{max}")] FrameTooLong { actual: usize, max: usize }, + /// An ACK was received for an item that had not been sent yet. + #[error("received ACK {actual}, but only sent items up to {expected}")] + UnexpectedAck { actual: u64, expected: u64 }, + /// Received an ACK for an item that an ACK was already received for. + #[error("duplicate ACK {actual}, was expecting {expected}")] + DuplicateAck { actual: u64, expected: u64 }, + /// The ACK stream associated with a backpressured channel was close.d + #[error("ACK stream closed")] + AckStreamClosed, + #[error("ACK stream error")] + AckStreamError, // TODO: Capture actual ack stream error here. + /// The wrapped sink returned an error. #[error(transparent)] Sink(#[from] E), } From 52fdd9a4cc733f734809a1056728c723a554f4eb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 23 May 2022 17:49:46 +0200 Subject: [PATCH 029/735] Add lifecycle unit tests for backpressure and fix bugs discovered by them --- Cargo.lock | 12 +++++ Cargo.toml | 3 ++ src/backpressured.rs | 105 ++++++++++++++++++++++++++++++++++++++----- 3 files changed, 109 insertions(+), 11 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 3d0685c8e3..b99e155e2d 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -193,6 +193,7 @@ dependencies = [ "futures", "thiserror", "tokio", + "tokio-stream", "tokio-util", ] @@ -382,6 +383,17 @@ dependencies = [ "syn", ] +[[package]] +name = "tokio-stream" +version = "0.1.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "50145484efff8818b5ccd256697f36863f587da82cf8b409c53adf1e840798e3" +dependencies = [ + "futures-core", + "pin-project-lite", + "tokio", +] + [[package]] name = "tokio-util" version = "0.7.2" diff --git a/Cargo.toml b/Cargo.toml index 8ea1cb58ff..dfadfa410f 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -12,3 +12,6 @@ futures = "0.3.21" thiserror = "1.0.31" tokio = { version = "1.18.1", features = ["full"] } tokio-util = "0.7.2" + +[dev-dependencies] +tokio-stream = "0.1.8" diff --git a/src/backpressured.rs b/src/backpressured.rs index d45089eea8..61f862490d 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -46,9 +46,9 @@ pub struct BackpressuredSink { /// A stream of integers representing ACKs, see struct documentation for details. ack_stream: A, /// The highest ACK received so far. - next_expected_ack: u64, + received_ack: u64, /// The number of the next request to be sent. - next_request: u64, + last_request: u64, /// Additional number of items to buffer on inner sink before awaiting ACKs (can be 0, which /// still allows for one item). window_size: u64, @@ -65,12 +65,17 @@ impl BackpressuredSink { Self { inner, ack_stream, - next_expected_ack: 1, - next_request: 0, + received_ack: 0, + last_request: 0, window_size, _phantom: PhantomData, } } + + /// Deconstructs a backpressured sink into its components. + pub fn into_inner(self) -> (S, A) { + (self.inner, self.ack_stream) + } } impl Sink for BackpressuredSink @@ -93,21 +98,21 @@ where loop { match self_mut.ack_stream.poll_next_unpin(cx) { Poll::Ready(Some(highest_ack)) => { - if highest_ack >= self_mut.next_request { + if highest_ack > self_mut.last_request { return Poll::Ready(Err(Error::UnexpectedAck { actual: highest_ack, - expected: self_mut.next_expected_ack, + expected: self_mut.received_ack, })); } - if highest_ack < self_mut.next_expected_ack { + if highest_ack <= self_mut.received_ack { return Poll::Ready(Err(Error::DuplicateAck { actual: highest_ack, - expected: self_mut.next_expected_ack, + expected: self_mut.received_ack, })); } - self_mut.next_expected_ack = highest_ack + 1; + self_mut.received_ack = highest_ack; } Poll::Ready(None) => { // The ACK stream has been closed. Close our sink, now that we know, but try to @@ -128,7 +133,8 @@ where } } Poll::Pending => { - let in_flight = self_mut.next_expected_ack + 1 - self_mut.next_request; + // Invariant: `received_ack` is always <= `last_request`. + let in_flight = self_mut.last_request - self_mut.received_ack; // We have no more ACKs to read. If we have capacity, we can continue, otherwise // return pending. @@ -150,7 +156,7 @@ where // We already know there are slots available, increase request count, then forward to sink. let self_mut = Pin::into_inner(self); - self_mut.next_request += 1; + self_mut.last_request += 1; self_mut.inner.start_send_unpin(item).map_err(Error::Sink) } @@ -171,3 +177,80 @@ where .map_err(Error::Sink) } } + +#[cfg(test)] +mod tests { + use futures::{FutureExt, SinkExt}; + use tokio::sync::mpsc::UnboundedSender; + use tokio_stream::wrappers::UnboundedReceiverStream; + + use crate::error::Error; + + use super::BackpressuredSink; + + /// Window size used in tests. + const WINDOW_SIZE: u64 = 3; + + /// A set of fixtures commonly used in the backpressure tests below. + struct Fixtures { + /// The stream ACKs are sent into. + ack_sender: UnboundedSender, + /// The backpressured sink. + bp: BackpressuredSink, UnboundedReceiverStream, char>, + } + + impl Fixtures { + /// Creates a new set of fixtures. + fn new() -> Self { + let sink = Vec::new(); + let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); + let ack_stream = UnboundedReceiverStream::new(ack_receiver); + let bp = BackpressuredSink::new(sink, ack_stream, WINDOW_SIZE); + + Fixtures { ack_sender, bp } + } + } + + // Basic lifecycle test. + #[test] + fn backpressure_can_send_messages_given_sufficient_acks() { + let Fixtures { ack_sender, mut bp } = Fixtures::new(); + + // The first four attempts at `window_size = 3` should succeed. + bp.send('A').now_or_never().unwrap().unwrap(); + bp.send('B').now_or_never().unwrap().unwrap(); + bp.send('C').now_or_never().unwrap().unwrap(); + bp.send('D').now_or_never().unwrap().unwrap(); + + // The fifth attempt will fail, due to no ACKs having been received. + assert!(bp.send('E').now_or_never().is_none()); + + // We can now send some ACKs. + ack_sender.send(1).unwrap(); + + // Retry sending the fifth message, sixth should still block. + bp.send('E').now_or_never().unwrap().unwrap(); + assert!(bp.send('F').now_or_never().is_none()); + + // Send a combined ack for three messages. + ack_sender.send(4).unwrap(); + + // This allows 3 more messages to go in. + bp.send('F').now_or_never().unwrap().unwrap(); + bp.send('G').now_or_never().unwrap().unwrap(); + bp.send('H').now_or_never().unwrap().unwrap(); + assert!(bp.send('I').now_or_never().is_none()); + + // We can now close the ACK stream to check if the sink errors after that. + drop(ack_sender); + assert!(matches!( + bp.send('I').now_or_never(), + Some(Err(Error::AckStreamClosed)) + )); + + // Check all data was received correctly. + let output: String = bp.into_inner().0.into_iter().collect(); + + assert_eq!(output, "ABCDEFGH"); + } +} From e4d30ca614318a2ccf8cbc7c348dbdf53ab284a4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 23 May 2022 17:56:41 +0200 Subject: [PATCH 030/735] Complete first test suite for backpressure module --- src/backpressured.rs | 54 ++++++++++++++++++++++++++++++++++++-------- src/error.rs | 8 +++---- 2 files changed, 48 insertions(+), 14 deletions(-) diff --git a/src/backpressured.rs b/src/backpressured.rs index 61f862490d..e7104fe08b 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -97,22 +97,22 @@ where // Attempt to read as many ACKs as possible. loop { match self_mut.ack_stream.poll_next_unpin(cx) { - Poll::Ready(Some(highest_ack)) => { - if highest_ack > self_mut.last_request { + Poll::Ready(Some(ack_received)) => { + if ack_received > self_mut.last_request { return Poll::Ready(Err(Error::UnexpectedAck { - actual: highest_ack, - expected: self_mut.received_ack, + actual: ack_received, + items_sent: self_mut.last_request, })); } - if highest_ack <= self_mut.received_ack { + if ack_received <= self_mut.received_ack { return Poll::Ready(Err(Error::DuplicateAck { - actual: highest_ack, - expected: self_mut.received_ack, + ack_received, + highest: self_mut.received_ack, })); } - self_mut.received_ack = highest_ack; + self_mut.received_ack = ack_received; } Poll::Ready(None) => { // The ACK stream has been closed. Close our sink, now that we know, but try to @@ -211,9 +211,8 @@ mod tests { } } - // Basic lifecycle test. #[test] - fn backpressure_can_send_messages_given_sufficient_acks() { + fn backpressure_lifecycle() { let Fixtures { ack_sender, mut bp } = Fixtures::new(); // The first four attempts at `window_size = 3` should succeed. @@ -253,4 +252,39 @@ mod tests { assert_eq!(output, "ABCDEFGH"); } + + #[test] + fn ensure_premature_ack_kills_stream() { + let Fixtures { ack_sender, mut bp } = Fixtures::new(); + + bp.send('A').now_or_never().unwrap().unwrap(); + bp.send('B').now_or_never().unwrap().unwrap(); + ack_sender.send(3).unwrap(); + + assert!(matches!( + bp.send('C').now_or_never(), + Some(Err(Error::UnexpectedAck { + items_sent: 2, + actual: 3 + })) + )); + } + + #[test] + fn ensure_redundant_ack_kills_stream() { + let Fixtures { ack_sender, mut bp } = Fixtures::new(); + + bp.send('A').now_or_never().unwrap().unwrap(); + bp.send('B').now_or_never().unwrap().unwrap(); + ack_sender.send(2).unwrap(); + ack_sender.send(2).unwrap(); + + assert!(matches!( + bp.send('C').now_or_never(), + Some(Err(Error::DuplicateAck { + ack_received: 2, + highest: 2 + })) + )); + } } diff --git a/src/error.rs b/src/error.rs index 088d2d85df..5ec0d4c47f 100644 --- a/src/error.rs +++ b/src/error.rs @@ -14,11 +14,11 @@ where #[error("frame too long {actual}/{max}")] FrameTooLong { actual: usize, max: usize }, /// An ACK was received for an item that had not been sent yet. - #[error("received ACK {actual}, but only sent items up to {expected}")] - UnexpectedAck { actual: u64, expected: u64 }, + #[error("received ACK {actual}, but only sent {items_sent} items")] + UnexpectedAck { actual: u64, items_sent: u64 }, /// Received an ACK for an item that an ACK was already received for. - #[error("duplicate ACK {actual}, was expecting {expected}")] - DuplicateAck { actual: u64, expected: u64 }, + #[error("duplicate ACK {ack_received} receveid, already received {highest}")] + DuplicateAck { ack_received: u64, highest: u64 }, /// The ACK stream associated with a backpressured channel was close.d #[error("ACK stream closed")] AckStreamClosed, From b1a0884f9a3c035b0f46a98f31153b802a891d3a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 May 2022 09:55:06 +0200 Subject: [PATCH 031/735] Ensure sending ACKs before closing ACK stream still results in error --- src/backpressured.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/backpressured.rs b/src/backpressured.rs index e7104fe08b..c7d52da151 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -240,8 +240,12 @@ mod tests { bp.send('H').now_or_never().unwrap().unwrap(); assert!(bp.send('I').now_or_never().is_none()); + // Send more ACKs to ensure we also get errors if there is capacity. + ack_sender.send(6).unwrap(); + // We can now close the ACK stream to check if the sink errors after that. drop(ack_sender); + assert!(matches!( bp.send('I').now_or_never(), Some(Err(Error::AckStreamClosed)) From 914f5b77822150925aa2c8a592512851384c1344 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 May 2022 09:56:13 +0200 Subject: [PATCH 032/735] Make redundant ACK test a little less similar to premature ACK one --- src/backpressured.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/backpressured.rs b/src/backpressured.rs index c7d52da151..65c71fae8c 100644 --- a/src/backpressured.rs +++ b/src/backpressured.rs @@ -281,12 +281,12 @@ mod tests { bp.send('A').now_or_never().unwrap().unwrap(); bp.send('B').now_or_never().unwrap().unwrap(); ack_sender.send(2).unwrap(); - ack_sender.send(2).unwrap(); + ack_sender.send(1).unwrap(); assert!(matches!( bp.send('C').now_or_never(), Some(Err(Error::DuplicateAck { - ack_received: 2, + ack_received: 1, highest: 2 })) )); From 73a926bf63bffee3ca7d1c657e7ac6d19f3fcc91 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 May 2022 10:03:57 +0200 Subject: [PATCH 033/735] Use `now_or_never` instead of spawning runtime in test --- src/lib.rs | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 5ee0d1bdde..4ed87d466b 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -70,7 +70,7 @@ pub(crate) mod tests { use std::io::Read; use bytes::{Buf, Bytes}; - use futures::{future, stream, SinkExt}; + use futures::{future, stream, FutureExt, SinkExt}; use crate::{ chunked::{chunk_frame, SingleChunk}, @@ -88,8 +88,8 @@ pub(crate) mod tests { } /// Test an "end-to-end" instance of the assembled pipeline for sending. - #[tokio::test] - async fn chunked_length_prefixed_sink() { + #[test] + fn chunked_length_prefixed_sink() { let base_sink: Vec> = Vec::new(); let length_prefixed_sink = @@ -102,7 +102,11 @@ pub(crate) mod tests { let sample_data = Bytes::from(&b"QRSTUV"[..]); - chunked_sink.send(sample_data).await.expect("send failed"); + chunked_sink + .send(sample_data) + .now_or_never() + .unwrap() + .expect("send failed"); let chunks: Vec<_> = chunked_sink .into_inner() From 1eb2d8e3cea9a9354eb39f42c62eb87277c2d55a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 May 2022 21:44:17 +0200 Subject: [PATCH 034/735] Intermixed implementation sketches for `mux` --- src/mux.rs | 181 ++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 178 insertions(+), 3 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index ec02bf2f1f..db2978b7ce 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -1,9 +1,19 @@ //! Stream multiplexing //! -//! Multiplexes multiple sink into a single one, allowing no more than one frame to be buffered for -//! each to avoid starving or flooding. +//! Multiplexes multiple sinks into a single one, allowing no more than one frame to be buffered for +//! each to avoid starvation or flooding. -use std::{fmt::Debug, pin::Pin, sync::Arc}; +// Have a locked + +use std::{ + fmt::Debug, + pin::Pin, + sync::{ + atomic::{AtomicBool, AtomicU8, AtomicUsize, Ordering}, + Arc, Mutex, + }, + task::{Context, Poll}, +}; use bytes::Buf; use futures::{Future, Sink, SinkExt}; @@ -16,6 +26,171 @@ pub type ChannelPrefixedFrame = bytes::buf::Chain, F> type SendTaskPayload = (OwnedSemaphorePermit, ChannelPrefixedFrame); +// IDEA: Put Arc in a vec and flip, along with a count? + +const EMPTY: u8 = 0xFF; + +#[derive(Debug)] +struct RoundRobinWaitList { + active: Option, + waiting: Vec, +} + +impl RoundRobinWaitList { + /// Tries to take a turn on the wait list. + /// + /// If it is our turn, or if the wait list was empty, marks us as active and returns `true`. + /// Otherwise, marks `me` as wanting a turn and returns `false`. + fn try_take_turn(&mut self, me: u8) -> bool { + if let Some(active) = self.active { + if active == me { + return true; + } + + // Someone is already sending, mark us as interested. + self.waiting[me as usize] = true; + return false; + } + + // If we reached this, no one was sending, mark us as active. + self.active = Some(me); + true + } + + /// Finish taking a turn. + /// + /// This function must only be called if `try_take_turn` returned `true` and the wait has not + /// been modified in the meantime. + /// + /// # Panic + /// + /// Panics if the active turn was modified in the meantime. + fn end_turn(&mut self, me: u8) { + assert_eq!(self.active, Some(me)); + + // We finished our turn, mark us as no longer interested. + self.waiting[me as usize] = false; + + // Now determine the next slot in line. + for offset in 0..self.waiting.len() { + let idx = (me as usize + offset) % self.waiting.len(); + if self.waiting[idx] { + self.active = Some(idx as u8); + return; + } + } + + // We found no slot, so we're inactive. + self.active = None; + } +} + +struct Multiplexer { + wait_list: Mutex, + sink: Mutex>, +} + +struct MultiplexerHandle { + multiplexer: Arc>, + slot: u8, +} + +impl Sink for MultiplexerHandle +where + S: Sink> + Unpin, + F: Buf, +{ + type Error = >>::Error; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let slot = self.slot; + + // Try to grab a slot on the wait list (will put us into the queue if we don't get one). + if !self + .multiplexer + .wait_list + .lock() + .expect("TODO handle poisoning") + .try_take_turn(self.slot) + { + Poll::Pending + } else { + // We are now active, check if the sink is ready. + } + + // Our first task is to determine whether our channel is currently active, or if we can + // activate it ourselves due to it being empty. + let active = self.multiplexer.active_slot.fetch_update( + Ordering::SeqCst, + Ordering::SeqCst, + |current| { + if current == EMPTY || current == slot { + return Some(slot); + } + None + }, + ); + + match active { + Ok(_) => { + // Required invariant: For any channel there is only one handle, thus we are the + // only one writing to the `waiting[n]` atomic bool. + + // We are the only handle allowed to send right now. + let ready_poll_result = + match *self.multiplexer.sink.lock().expect("TODO: Lock Poisoning") { + Some(ref mut sink_ref) => sink_ref.poll_ready_unpin(cx), + None => todo!("handle closed multiplexer"), + }; + + match ready_poll_result { + Poll::Ready(Ok(())) => { + self.multiplexer.waiting[self.slot as usize].store(false, Ordering::SeqCst); + Poll::Ready(Ok(())) + } + Poll::Ready(Err(_err)) => todo!("sink closed"), + Poll::Pending => Poll::Pending, + } + } + Err(_) => { + // We need to wait until the channel is either empty or our slot is picked. First, + // mark us as interested in the wait list. + self.multiplexer.waiting[self.slot as usize].store(true, Ordering::SeqCst); + + // We still need to wait our turn. + return Poll::Pending; + } + } + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); + let prefixed = ImmediateFrame::from(self.slot).chain(item); + match *guard { + Some(ref mut sink_ref) => sink_ref.start_send_unpin(prefixed), + None => todo!("handle closed multiplexer"), + } + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); + match *guard { + Some(ref mut sink_ref) => match sink_ref.poll_flush_unpin(cx) { + Poll::Ready(Ok(())) => { + // We finished sending our item. We now iterate through the waitlist. + } + Poll::Ready(Err(_err)) => todo!("handle sink error"), + Poll::Pending => Poll::Pending, + }, + None => todo!("handle closed multiplexer"), + } + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + todo!() + } +} + #[derive(Debug)] struct Muxtable { /// A collection of synchronization primitives indicating whether or not a message is currently From b603816eb0663ac27d2d4d0558209115cf335579 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 25 May 2022 11:16:17 +0200 Subject: [PATCH 035/735] Redraft `mux` implementation that does not use a channel --- src/mux.rs | 108 ++++++++++++++++++++++------------------------------- 1 file changed, 44 insertions(+), 64 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index db2978b7ce..c210e1dea9 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -8,10 +8,7 @@ use std::{ fmt::Debug, pin::Pin, - sync::{ - atomic::{AtomicBool, AtomicU8, AtomicUsize, Ordering}, - Arc, Mutex, - }, + sync::{Arc, Mutex}, task::{Context, Poll}, }; @@ -26,9 +23,7 @@ pub type ChannelPrefixedFrame = bytes::buf::Chain, F> type SendTaskPayload = (OwnedSemaphorePermit, ChannelPrefixedFrame); -// IDEA: Put Arc in a vec and flip, along with a count? - -const EMPTY: u8 = 0xFF; +// TODO: Add skiplist buffer. #[derive(Debug)] struct RoundRobinWaitList { @@ -105,67 +100,35 @@ where fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let slot = self.slot; + // Required invariant: For any channel there is only one handle, thus we are the only one + // writing to the `waiting[n]` atomic bool. + // Try to grab a slot on the wait list (will put us into the queue if we don't get one). - if !self + let our_turn = self .multiplexer .wait_list .lock() .expect("TODO handle poisoning") - .try_take_turn(self.slot) - { + .try_take_turn(self.slot); + + // At this point, we no longer hold the `wait_list` lock. + + if !our_turn { Poll::Pending } else { // We are now active, check if the sink is ready. - } - - // Our first task is to determine whether our channel is currently active, or if we can - // activate it ourselves due to it being empty. - let active = self.multiplexer.active_slot.fetch_update( - Ordering::SeqCst, - Ordering::SeqCst, - |current| { - if current == EMPTY || current == slot { - return Some(slot); - } - None - }, - ); - - match active { - Ok(_) => { - // Required invariant: For any channel there is only one handle, thus we are the - // only one writing to the `waiting[n]` atomic bool. - - // We are the only handle allowed to send right now. - let ready_poll_result = - match *self.multiplexer.sink.lock().expect("TODO: Lock Poisoning") { - Some(ref mut sink_ref) => sink_ref.poll_ready_unpin(cx), - None => todo!("handle closed multiplexer"), - }; - - match ready_poll_result { - Poll::Ready(Ok(())) => { - self.multiplexer.waiting[self.slot as usize].store(false, Ordering::SeqCst); - Poll::Ready(Ok(())) - } - Poll::Ready(Err(_err)) => todo!("sink closed"), - Poll::Pending => Poll::Pending, - } - } - Err(_) => { - // We need to wait until the channel is either empty or our slot is picked. First, - // mark us as interested in the wait list. - self.multiplexer.waiting[self.slot as usize].store(true, Ordering::SeqCst); - - // We still need to wait our turn. - return Poll::Pending; + match *self.multiplexer.sink.lock().expect("TODO: Lock Poisoning") { + Some(ref mut sink_ref) => sink_ref.poll_ready_unpin(cx), + None => todo!("handle closed multiplexer"), } } } fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); let prefixed = ImmediateFrame::from(self.slot).chain(item); + + let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); + match *guard { Some(ref mut sink_ref) => sink_ref.start_send_unpin(prefixed), None => todo!("handle closed multiplexer"), @@ -173,20 +136,37 @@ where } fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); - match *guard { - Some(ref mut sink_ref) => match sink_ref.poll_flush_unpin(cx) { - Poll::Ready(Ok(())) => { - // We finished sending our item. We now iterate through the waitlist. - } - Poll::Ready(Err(_err)) => todo!("handle sink error"), - Poll::Pending => Poll::Pending, - }, - None => todo!("handle closed multiplexer"), + // Obtain the flush result, then release the sink lock. + let flush_result = { + let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); + + match *guard { + Some(ref mut sink) => sink.poll_flush_unpin(cx), + None => todo!("TODO: MISSING SINK"), + } + }; + + match flush_result { + Poll::Ready(Ok(())) => { + // Acquire wait list lock to update it. + self.multiplexer + .wait_list + .lock() + .expect("TODO: Lock poisoning") + .end_turn(self.slot); + + Poll::Ready(Ok(())) + } + Poll::Ready(Err(_)) => { + todo!("handle error") + } + + Poll::Pending => Poll::Pending, } } fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + // Simply close? Note invariants, possibly checking them in debug mode. todo!() } } From 5c9c53706be42da67e840c6b7579073579a0242c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 25 May 2022 18:24:23 +0200 Subject: [PATCH 036/735] Remove stale Muxtable code --- src/mux.rs | 66 ------------------------------------------------------ 1 file changed, 66 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index c210e1dea9..ba969c458e 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -170,69 +170,3 @@ where todo!() } } - -#[derive(Debug)] -struct Muxtable { - /// A collection of synchronization primitives indicating whether or not a message is currently - /// being processed for a specific subchannel. - // Note: A manual `Sink` implementation could probably poll an `AtomicBool` here and on failure - // register to be woken up again, but for now we have to make do with the semaphore here. - slots: Vec>, - /// Sender where outgoing frames go. - sender: mpsc::Sender>, -} - -struct Muxhandle { - table: Arc>, -} - -impl Muxtable -where - F: Buf + Send + Debug + 'static, -{ - pub fn new(num_slots: u8, mut sink: S) -> (impl Future, Self) - where - S: Sink> + Unpin, - { - let (sender, mut receiver) = mpsc::channel(num_slots as usize); - - let send_task = async move { - let mut pinned_sink = Pin::new(&mut sink); - - while let Some((_permit, channel_frame)) = receiver.recv().await { - pinned_sink - .send(channel_frame) - .await - .unwrap_or_else(|_sink_err| { - todo!("handle sink error, closing all semaphores as well") - }); - // Permit will automatically be dropped once the loop iteration finishes. - } - }; - let muxtable = Muxtable { - slots: (0..(num_slots as usize)) - .into_iter() - .map(|_| Arc::new(Semaphore::new(1))) - .collect(), - sender, - }; - - (send_task, muxtable) - } - - pub fn muxed_channel_handle( - &self, - channel: u8, - ) -> impl Sink>>> { - let poll_sender = PollSender::new(self.sender.clone()); - let slot = self.slots[channel as usize].clone(); // TODO: Error if slot missing. - - poll_sender.with(move |frame| { - let fut_slot = slot.clone(); - async move { - let permit = fut_slot.acquire_owned().await.expect("TODO"); - Ok((permit, ImmediateFrame::from(channel).chain(frame))) - } - }) - } -} From f37277da161cd3d189f0a6fbd14c6fa719ca01fa Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 30 May 2022 16:17:14 +0200 Subject: [PATCH 037/735] Cleanup `mux` module --- src/mux.rs | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index ba969c458e..2d13f7c8cf 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -3,8 +3,6 @@ //! Multiplexes multiple sinks into a single one, allowing no more than one frame to be buffered for //! each to avoid starvation or flooding. -// Have a locked - use std::{ fmt::Debug, pin::Pin, @@ -13,16 +11,12 @@ use std::{ }; use bytes::Buf; -use futures::{Future, Sink, SinkExt}; -use tokio::sync::{mpsc, OwnedSemaphorePermit, Semaphore}; -use tokio_util::sync::{PollSendError, PollSender}; +use futures::{Sink, SinkExt}; use crate::{error::Error, ImmediateFrame}; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; -type SendTaskPayload = (OwnedSemaphorePermit, ChannelPrefixedFrame); - // TODO: Add skiplist buffer. #[derive(Debug)] @@ -80,11 +74,29 @@ impl RoundRobinWaitList { } } +/// A frame multiplexer. +/// +/// Typically the multiplexer is not used directly, but used to spawn multiplexing handles. struct Multiplexer { wait_list: Mutex, sink: Mutex>, } +impl Multiplexer { + /// Create a handle for a specific multiplexer channel on this multiplexer. + /// + /// # Safety + /// + /// This function **must not** be called multiple times on the same `Multiplexer` with the same + /// `channel` value. + pub fn get_channel_handle(self: Arc, channel: u8) -> MultiplexerHandle { + MultiplexerHandle { + multiplexer: self.clone(), + slot: channel, + } + } +} + struct MultiplexerHandle { multiplexer: Arc>, slot: u8, @@ -98,8 +110,6 @@ where type Error = >>::Error; fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let slot = self.slot; - // Required invariant: For any channel there is only one handle, thus we are the only one // writing to the `waiting[n]` atomic bool. From fbff471bc3af972b0deb4c83ed6e0492bb6f04e3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 30 May 2022 17:11:41 +0200 Subject: [PATCH 038/735] Add comments and rename wait list to `RoundRobinAdvisoryLock` --- src/mux.rs | 73 ++++++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 63 insertions(+), 10 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 2d13f7c8cf..e23d21cf68 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -17,20 +17,69 @@ use crate::{error::Error, ImmediateFrame}; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; -// TODO: Add skiplist buffer. - +/// A waiting list handing out turns to interested participants in round-robin fashion. +/// +/// The list is set up with a set of `n` participants labelled from `0..(n-1)` and no active +/// participant. Any participant can attempt to acquire the lock by calling the `try_acquire` +/// function. +/// +/// If the lock is currently unavailable, the participant will be put in a wait queue and is +/// guaranteed a turn "in order" at some point when it calls `try_acquire` again. If a participant +/// has not registered interest in obtaining the lock their turn is skipped. +/// +/// Once work has been completed, the lock must manually be released using the `end_turn` +/// +/// This "lock" differs from `Mutex` in multiple ways: +/// +/// * Mutable access required: Counterintuitively this lock needs to be wrapped in a `Mutex` to +/// guarding access to its internals. +/// * No notifications/waiting: There is no way to wait for the lock to become available, rather it +/// is assumed participants get an external notification indication that the lock might now be +/// available. +/// * Advisory: No actual access control is enforced by the type system, rather it is assumed that +/// clients are well behaved and respect the lock. +/// (TODO: We can possibly put a ghost cell here to enforce it) +/// * Fixed set of participants: The total set of participants must be specified in advance. #[derive(Debug)] -struct RoundRobinWaitList { +struct RoundRobinAdvisoryLock { + /// The currently active lock holder. active: Option, + /// Participants wanting to take a turn. waiting: Vec, } -impl RoundRobinWaitList { +impl RoundRobinAdvisoryLock { + /// Creates a new round robin advisory lock with the given number of participants. + pub fn new(num_participants: u8) -> Self { + let mut waiting = Vec::new(); + waiting.resize(num_participants as usize, false); + + Self { + active: None, + waiting, + } + } + /// Tries to take a turn on the wait list. /// /// If it is our turn, or if the wait list was empty, marks us as active and returns `true`. /// Otherwise, marks `me` as wanting a turn and returns `false`. - fn try_take_turn(&mut self, me: u8) -> bool { + /// + /// # Safety + /// + /// A participant MUST NOT give up on calling `try_acquire` once it has called it once, as the + /// lock will ultimately prevent any other participant from acquiring it while the interested is + /// registered. + /// + /// # Panics + /// + /// Panics if `me` is not a participant in the initial set of participants. + fn try_acquire(&mut self, me: u8) -> bool { + debug_assert!( + self.waiting.len() as u8 > me, + "participant out of bounds in advisory lock" + ); + if let Some(active) = self.active { if active == me { return true; @@ -54,8 +103,12 @@ impl RoundRobinWaitList { /// # Panic /// /// Panics if the active turn was modified in the meantime. - fn end_turn(&mut self, me: u8) { - assert_eq!(self.active, Some(me)); + fn release(&mut self, me: u8) { + assert_eq!( + self.active, + Some(me), + "tried to release unacquired advisory lock" + ); // We finished our turn, mark us as no longer interested. self.waiting[me as usize] = false; @@ -78,7 +131,7 @@ impl RoundRobinWaitList { /// /// Typically the multiplexer is not used directly, but used to spawn multiplexing handles. struct Multiplexer { - wait_list: Mutex, + wait_list: Mutex, sink: Mutex>, } @@ -119,7 +172,7 @@ where .wait_list .lock() .expect("TODO handle poisoning") - .try_take_turn(self.slot); + .try_acquire(self.slot); // At this point, we no longer hold the `wait_list` lock. @@ -163,7 +216,7 @@ where .wait_list .lock() .expect("TODO: Lock poisoning") - .end_turn(self.slot); + .release(self.slot); Poll::Ready(Ok(())) } From a1b59dcde97df51ef48e502fd82786a96d1c7f3d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 31 May 2022 15:47:12 +0200 Subject: [PATCH 039/735] Sketch fair mutex as a replacement in `mux` --- src/rr.rs | 124 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) create mode 100644 src/rr.rs diff --git a/src/rr.rs b/src/rr.rs new file mode 100644 index 0000000000..9428cdf819 --- /dev/null +++ b/src/rr.rs @@ -0,0 +1,124 @@ +use std::{ + cell::RefCell, + ops::{Deref, DerefMut}, + sync::{ + atomic::{AtomicBool, Ordering}, + Arc, Mutex, + }, +}; + +struct LockInner { + wait_list: Vec, + item: Option>, +} + +struct FairLock { + tickets: Vec, + inner: Mutex>, +} + +impl FairLock { + pub fn new(num_tickets: u8, item: T) -> Self { + let mut tickets = Vec::new(); + tickets.resize_with(num_tickets as usize, || AtomicBool::new(false)); + + FairLock { + tickets, + inner: Mutex::new(LockInner { + wait_list: Vec::new(), + item: Some(Box::new(item)), + }), + } + } +} + +struct Ticket { + id: u8, + lock: Arc>, +} + +impl Drop for Ticket { + fn drop(&mut self) { + let prev = self.lock.tickets[self.id as usize].fetch_and(false, Ordering::SeqCst); + debug_assert!( + !prev, + "dropped ticket that does not exist, this should never happen", + ); + } +} + +struct Guard { + id: u8, + item: Option>, + lock: Arc>, +} + +impl Drop for Guard { + fn drop(&mut self) { + let mut inner = self.lock.inner.lock().expect("HANDLE POISON"); + debug_assert!(inner.item.is_none()); + + inner.item = Some(self.item.take().expect("violation, item disappread")); + let first = inner.wait_list.pop(); + + debug_assert_eq!(first, Some(self.id)); + } +} + +impl Deref for Guard { + type Target = T; + + fn deref(&self) -> &Self::Target { + self.item.as_ref().expect("ITEM DISAPPREAD") + } +} + +impl DerefMut for Guard { + fn deref_mut(&mut self) -> &mut Self::Target { + self.item.as_mut().expect("ITEM DISAPPREAD") + } +} + +impl FairLock { + fn get_ticket(self: Arc, id: u8) -> Option> { + if !self.tickets[id as usize].fetch_xor(true, Ordering::SeqCst) { + self.inner.lock().expect("HANDLE POISON").wait_list.push(id); + Some(Ticket { + id, + lock: self.clone(), + }) + } else { + None + } + } +} + +impl Ticket { + fn try_acquire(self) -> Result, Self> { + let mut inner = self.lock.inner.lock().expect("TODO: Handle poison"); + + if inner.wait_list[0] != self.id { + drop(inner); + return Err(self); + } + + let item = inner.item.take().expect("item disappeared?"); + Ok(Guard { + id: self.id, + item: Some(item), + lock: self.lock.clone(), + }) + + // Now dropping ticket. + } +} + +#[cfg(test)] +mod tests { + struct Dummy; + + #[test] + fn basic_test() { + let fair_lock = Arc::new(FairLock::new()); + } +} From 80e781585f14b54bd9673dec58be26aca0e64b5c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 10:46:23 +0200 Subject: [PATCH 040/735] Add stream reader --- src/error.rs | 3 ++ src/lib.rs | 14 +++++++- src/reader.rs | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 109 insertions(+), 1 deletion(-) create mode 100644 src/reader.rs diff --git a/src/error.rs b/src/error.rs index 5ec0d4c47f..5e9c9a3414 100644 --- a/src/error.rs +++ b/src/error.rs @@ -27,4 +27,7 @@ where /// The wrapped sink returned an error. #[error(transparent)] Sink(#[from] E), + /// Can not construct proper `u16` from bytes representing frame length. + #[error("Incorrect frame length")] + IncorrectFrameLength, } diff --git a/src/lib.rs b/src/lib.rs index 4ed87d466b..e54f6d50d8 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -3,6 +3,7 @@ pub mod chunked; pub mod error; pub mod length_prefixed; pub mod mux; +pub mod reader; use bytes::Buf; @@ -70,12 +71,13 @@ pub(crate) mod tests { use std::io::Read; use bytes::{Buf, Bytes}; - use futures::{future, stream, FutureExt, SinkExt}; + use futures::{future, stream, FutureExt, SinkExt, StreamExt}; use crate::{ chunked::{chunk_frame, SingleChunk}, error::Error, length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, + reader::Reader, }; /// Collects everything inside a `Buf` into a `Vec`. @@ -120,4 +122,14 @@ pub(crate) mod tests { vec![b"\x06\x00\x00QRSTU".to_vec(), b"\x02\x00\xffV".to_vec()] ) } + + #[tokio::test] + async fn stream_to_message() { + let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; + let expected = "ABCDEFGHIJ"; + + let reader = Reader::new(stream); + let frames: Vec<_> = reader.collect().await; + dbg!(&frames); + } } diff --git a/src/reader.rs b/src/reader.rs new file mode 100644 index 0000000000..0d0554e382 --- /dev/null +++ b/src/reader.rs @@ -0,0 +1,93 @@ +use std::{pin::Pin, task::Poll}; + +use bytes::{Buf, Bytes, BytesMut}; +use futures::{AsyncRead, Stream}; + +use crate::error::Error; + +pub(crate) struct Reader { + stream: R, + buffer: BytesMut, +} + +impl Reader { + #[cfg(test)] + pub(crate) fn new(stream: R) -> Self { + Self { + stream, + buffer: BytesMut::new(), + } + } + + // If there's a full frame in the bufer, it's length is returned. + fn have_full_frame(&self) -> Result, Error> { + const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); + + let bytes_in_buffer = self.buffer.remaining(); + if bytes_in_buffer < LENGTH_MARKER_SIZE { + return Ok(None); + } + + let data_length = u16::from_le_bytes( + self.buffer[0..LENGTH_MARKER_SIZE] + .try_into() + .map_err(|_| Error::IncorrectFrameLength)?, + ) as usize; + + if bytes_in_buffer < LENGTH_MARKER_SIZE + data_length { + return Ok(None); + } + + Ok(Some(LENGTH_MARKER_SIZE + data_length)) + } +} + +impl Stream for Reader +where + R: AsyncRead + Unpin, +{ + type Item = Bytes; + + // TODO: Add UTs for all paths + fn poll_next( + mut self: Pin<&mut Self>, + cx: &mut std::task::Context<'_>, + ) -> Poll> { + let mut intermediate_buffer = [0; 128]; + let mut reader_mut = self.as_mut(); + let frame_length = loop { + match reader_mut.have_full_frame() { + Ok(maybe_length) => match maybe_length { + Some(frame_length) => break frame_length, + None => { + // TODO: Borrow checker doesn't like using `reader_mut.buffer` directly. + match Pin::new(&mut reader_mut.stream) + .poll_read(cx, &mut intermediate_buffer) + { + Poll::Ready(result) => match result { + Ok(count) => { + // For testing purposes assume that when the stream is empty + // we finish processing. In production, we'll keep waiting + // for more data to arrive. + #[cfg(test)] + if count == 0 { + return Poll::Ready(None); + } + + reader_mut + .buffer + .extend_from_slice(&intermediate_buffer[0..count]) + } + Err(err) => panic!("error on poll_read(): {}", err), + }, + Poll::Pending => return Poll::Pending, + } + } + }, + Err(err) => panic!("error on have_full_frame(): {}", err), + } + }; + + return Poll::Ready(Some(reader_mut.buffer.split_to(frame_length).freeze())); + } +} From 7058b365aad69fc1ed2a6083f0b1cfd8d865f7a2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 11:00:50 +0200 Subject: [PATCH 041/735] Reader now removes the length prefix --- src/reader.rs | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/src/reader.rs b/src/reader.rs index 0d0554e382..93ea3620f8 100644 --- a/src/reader.rs +++ b/src/reader.rs @@ -5,6 +5,8 @@ use futures::{AsyncRead, Stream}; use crate::error::Error; +const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); + pub(crate) struct Reader { stream: R, buffer: BytesMut, @@ -21,8 +23,6 @@ impl Reader { // If there's a full frame in the bufer, it's length is returned. fn have_full_frame(&self) -> Result, Error> { - const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); - let bytes_in_buffer = self.buffer.remaining(); if bytes_in_buffer < LENGTH_MARKER_SIZE { return Ok(None); @@ -88,6 +88,9 @@ where } }; - return Poll::Ready(Some(reader_mut.buffer.split_to(frame_length).freeze())); + let mut frame_data = reader_mut.buffer.split_to(frame_length); + let _ = frame_data.split_to(LENGTH_MARKER_SIZE); + + Poll::Ready(Some(frame_data.freeze())) } } From 18df4e7d08bc9fbcdd7e4979d92f58268ca56081 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 11:55:51 +0200 Subject: [PATCH 042/735] Add `Dechunker` --- src/chunked.rs | 72 +++++++++++++++++++++++++++++++++++++++++++++++--- src/lib.rs | 12 ++++++--- 2 files changed, 78 insertions(+), 6 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index da3a2d9c78..6037bea3cb 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -4,9 +4,10 @@ //! continuation byte, which is `0x00` if more chunks are following, `0xFF` if this is the frame's //! last chunk. -use std::num::NonZeroUsize; +use std::{num::NonZeroUsize, task::Poll}; -use bytes::{Buf, Bytes}; +use bytes::{Buf, Bytes, BytesMut}; +use futures::Stream; use crate::{error::Error, ImmediateFrame}; @@ -16,7 +17,72 @@ pub type SingleChunk = bytes::buf::Chain, Bytes>; const MORE_CHUNKS: u8 = 0x00; /// Final chunk indicator. -const FINAL_CHUNK: u8 = 0xFF; +pub const FINAL_CHUNK: u8 = 0xFF; + +pub(crate) struct Dechunker { + chunks: Vec, +} + +impl Dechunker { + #[cfg(test)] + pub(crate) fn new(chunks: Vec) -> Self { + Self { chunks } + } + + // If there's a full frame in the bufer, the index of the last chunk is returned. + fn have_full_message(&self) -> Option { + self.chunks + .iter() + .enumerate() + .find(|(_, chunk)| { + let maybe_first_byte = chunk.first(); + match maybe_first_byte { + Some(first_byte) => first_byte == &FINAL_CHUNK, + None => panic!("chunk without continuation byte encountered"), + } + }) + .map(|(index, _)| index) + } +} + +impl Stream for Dechunker { + type Item = Bytes; + + fn poll_next( + mut self: std::pin::Pin<&mut Self>, + cx: &mut std::task::Context<'_>, + ) -> std::task::Poll> { + let mut dechunker_mut = self.as_mut(); + let full_message = loop { + if dechunker_mut.chunks.is_empty() { + return Poll::Ready(None); + } + + match dechunker_mut.have_full_message() { + Some(final_chunk_index) => { + // let mut intermediate_buffer = BytesMut::with_capacity("we're able to precalculate size"); + let mut intermediate_buffer = BytesMut::new(); + dechunker_mut + .chunks + .iter() + .take(final_chunk_index + 1) + .map(|chunk| { + let maybe_split = chunk.split_first(); + match maybe_split { + Some((_, chunk_data)) => chunk_data, + None => panic!("encountered chunk with zero size"), + } + }) + .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); + dechunker_mut.chunks.drain(0..final_chunk_index + 1); + break intermediate_buffer.freeze(); + } + None => return Poll::Pending, + } + }; + Poll::Ready(Some(full_message)) + } +} /// Chunks a frame into ready-to-send chunks. /// diff --git a/src/lib.rs b/src/lib.rs index e54f6d50d8..8dda5bbe77 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -74,6 +74,7 @@ pub(crate) mod tests { use futures::{future, stream, FutureExt, SinkExt, StreamExt}; use crate::{ + chunked::Dechunker, chunked::{chunk_frame, SingleChunk}, error::Error, length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, @@ -126,10 +127,15 @@ pub(crate) mod tests { #[tokio::test] async fn stream_to_message() { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; - let expected = "ABCDEFGHIJ"; + let expected = "ABCDEFGHIJKL"; let reader = Reader::new(stream); - let frames: Vec<_> = reader.collect().await; - dbg!(&frames); + let dechunker = Dechunker::new(reader.collect().await); + + let messages: Vec<_> = dechunker.collect().await; + assert_eq!( + expected, + messages.first().expect("should have at least one message") + ); } } From d75d4afdda24ad2932c926c558e7a5e3bcb7c69f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 12:01:29 +0200 Subject: [PATCH 043/735] Estimate size for message buffer --- src/chunked.rs | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 6037bea3cb..e52c74485c 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -43,6 +43,17 @@ impl Dechunker { }) .map(|(index, _)| index) } + + // Tries to calculate the expected size of the next message. + // If not possible, returns 0, indicating that the caller + // needs to assume that the size of the next message is unknown. + fn buffer_size_hint(&self, final_chunk_index: usize) -> usize { + let maybe_first_chunk = self.chunks.first(); + match maybe_first_chunk { + Some(first_chunk) => first_chunk.len() * (final_chunk_index + 1), + None => 0, + } + } } impl Stream for Dechunker { @@ -60,8 +71,8 @@ impl Stream for Dechunker { match dechunker_mut.have_full_message() { Some(final_chunk_index) => { - // let mut intermediate_buffer = BytesMut::with_capacity("we're able to precalculate size"); - let mut intermediate_buffer = BytesMut::new(); + let mut intermediate_buffer = + BytesMut::with_capacity(dechunker_mut.buffer_size_hint(final_chunk_index)); dechunker_mut .chunks .iter() From 8e232e3f4b2dd9d3801846c98aa4e9fa1d824654 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 12:07:47 +0200 Subject: [PATCH 044/735] Add `stream_to_multiple_messages` test --- src/chunked.rs | 6 +++--- src/lib.rs | 12 ++++++++++++ 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index e52c74485c..819383c1e8 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -61,10 +61,10 @@ impl Stream for Dechunker { fn poll_next( mut self: std::pin::Pin<&mut Self>, - cx: &mut std::task::Context<'_>, + _cx: &mut std::task::Context<'_>, ) -> std::task::Poll> { let mut dechunker_mut = self.as_mut(); - let full_message = loop { + let full_message = { if dechunker_mut.chunks.is_empty() { return Poll::Ready(None); } @@ -86,7 +86,7 @@ impl Stream for Dechunker { }) .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); dechunker_mut.chunks.drain(0..final_chunk_index + 1); - break intermediate_buffer.freeze(); + intermediate_buffer.freeze() } None => return Poll::Pending, } diff --git a/src/lib.rs b/src/lib.rs index 8dda5bbe77..6b5445352f 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -138,4 +138,16 @@ pub(crate) mod tests { messages.first().expect("should have at least one message") ); } + + #[tokio::test] + async fn stream_to_multiple_messages() { + let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; + let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; + + let reader = Reader::new(stream); + let dechunker = Dechunker::new(reader.collect().await); + + let messages: Vec<_> = dechunker.collect().await; + assert_eq!(expected, messages); + } } From 102df8802c9accbfb6e84b59fb808ad3b7fa39e6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 14:26:47 +0200 Subject: [PATCH 045/735] Chain `Reader` with `Dechunker` --- src/chunked.rs | 75 ++++++++++++++++++++++++++++---------------------- src/lib.rs | 6 ++-- src/reader.rs | 2 +- 3 files changed, 45 insertions(+), 38 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 819383c1e8..8d319a6637 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -4,7 +4,7 @@ //! continuation byte, which is `0x00` if more chunks are following, `0xFF` if this is the frame's //! last chunk. -use std::{num::NonZeroUsize, task::Poll}; +use std::{num::NonZeroUsize, pin::Pin, task::Poll}; use bytes::{Buf, Bytes, BytesMut}; use futures::Stream; @@ -19,19 +19,23 @@ const MORE_CHUNKS: u8 = 0x00; /// Final chunk indicator. pub const FINAL_CHUNK: u8 = 0xFF; -pub(crate) struct Dechunker { - chunks: Vec, +pub(crate) struct Dechunker { + stream: R, + buffer: Vec, } -impl Dechunker { +impl Dechunker { #[cfg(test)] - pub(crate) fn new(chunks: Vec) -> Self { - Self { chunks } + pub(crate) fn new(stream: R) -> Self { + Self { + stream, + buffer: vec![], + } } // If there's a full frame in the bufer, the index of the last chunk is returned. fn have_full_message(&self) -> Option { - self.chunks + self.buffer .iter() .enumerate() .find(|(_, chunk)| { @@ -48,7 +52,7 @@ impl Dechunker { // If not possible, returns 0, indicating that the caller // needs to assume that the size of the next message is unknown. fn buffer_size_hint(&self, final_chunk_index: usize) -> usize { - let maybe_first_chunk = self.chunks.first(); + let maybe_first_chunk = self.buffer.first(); match maybe_first_chunk { Some(first_chunk) => first_chunk.len() * (final_chunk_index + 1), None => 0, @@ -56,42 +60,47 @@ impl Dechunker { } } -impl Stream for Dechunker { +impl Stream for Dechunker +where + R: Stream + Unpin, + R: Stream, +{ type Item = Bytes; fn poll_next( mut self: std::pin::Pin<&mut Self>, - _cx: &mut std::task::Context<'_>, + cx: &mut std::task::Context<'_>, ) -> std::task::Poll> { let mut dechunker_mut = self.as_mut(); - let full_message = { - if dechunker_mut.chunks.is_empty() { - return Poll::Ready(None); - } - + let final_chunk_index = loop { match dechunker_mut.have_full_message() { Some(final_chunk_index) => { - let mut intermediate_buffer = - BytesMut::with_capacity(dechunker_mut.buffer_size_hint(final_chunk_index)); - dechunker_mut - .chunks - .iter() - .take(final_chunk_index + 1) - .map(|chunk| { - let maybe_split = chunk.split_first(); - match maybe_split { - Some((_, chunk_data)) => chunk_data, - None => panic!("encountered chunk with zero size"), - } - }) - .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); - dechunker_mut.chunks.drain(0..final_chunk_index + 1); - intermediate_buffer.freeze() + break final_chunk_index; } - None => return Poll::Pending, + None => match Pin::new(&mut dechunker_mut.stream).poll_next(cx) { + Poll::Ready(result) => match result { + Some(chunk) => dechunker_mut.buffer.push(chunk), + None => return Poll::Ready(None), + }, + Poll::Pending => return Poll::Pending, + }, } }; - Poll::Ready(Some(full_message)) + + let mut intermediate_buffer = + BytesMut::with_capacity(dechunker_mut.buffer_size_hint(final_chunk_index)); + + dechunker_mut + .buffer + .iter() + .take(final_chunk_index + 1) + .map(|chunk| match chunk.split_first() { + Some((_, chunk_data)) => chunk_data, + None => panic!("encountered chunk with zero size"), + }) + .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); + dechunker_mut.buffer.drain(0..final_chunk_index + 1); + Poll::Ready(Some(intermediate_buffer.freeze())) } } diff --git a/src/lib.rs b/src/lib.rs index 6b5445352f..136392526b 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -129,8 +129,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let reader = Reader::new(stream); - let dechunker = Dechunker::new(reader.collect().await); + let dechunker = Dechunker::new(Reader::new(stream)); let messages: Vec<_> = dechunker.collect().await; assert_eq!( @@ -144,8 +143,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; - let reader = Reader::new(stream); - let dechunker = Dechunker::new(reader.collect().await); + let dechunker = Dechunker::new(Reader::new(stream)); let messages: Vec<_> = dechunker.collect().await; assert_eq!(expected, messages); diff --git a/src/reader.rs b/src/reader.rs index 93ea3620f8..6593fc10cd 100644 --- a/src/reader.rs +++ b/src/reader.rs @@ -78,7 +78,7 @@ where .buffer .extend_from_slice(&intermediate_buffer[0..count]) } - Err(err) => panic!("error on poll_read(): {}", err), + Err(err) => panic!("error on Reader::poll_read(): {}", err), }, Poll::Pending => return Poll::Pending, } From fd04008944d72f4f4d75e3f7fb912da1cd0ef556 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 1 Jun 2022 14:51:19 +0200 Subject: [PATCH 046/735] Use `now_or_never()` in tests --- src/lib.rs | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 136392526b..c7095c8916 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -124,28 +124,28 @@ pub(crate) mod tests { ) } - #[tokio::test] - async fn stream_to_message() { + #[test] + fn stream_to_message() { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; let dechunker = Dechunker::new(Reader::new(stream)); - let messages: Vec<_> = dechunker.collect().await; + let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); assert_eq!( expected, messages.first().expect("should have at least one message") ); } - #[tokio::test] - async fn stream_to_multiple_messages() { + #[test] + fn stream_to_multiple_messages() { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; let dechunker = Dechunker::new(Reader::new(stream)); - let messages: Vec<_> = dechunker.collect().await; + let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); assert_eq!(expected, messages); } } From fbcb48738191dfd6496b4efa1e00948e1da6d58e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 3 Jun 2022 16:17:17 +0200 Subject: [PATCH 047/735] Satisfy the borrow checker when handling the internal buffer in the `Reader` --- src/chunked.rs | 12 +++--- src/frame_reader.rs | 101 ++++++++++++++++++++++++++++++++++++++++++++ src/lib.rs | 10 ++--- src/reader.rs | 96 ----------------------------------------- 4 files changed, 112 insertions(+), 107 deletions(-) create mode 100644 src/frame_reader.rs delete mode 100644 src/reader.rs diff --git a/src/chunked.rs b/src/chunked.rs index 8d319a6637..e5851987e1 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -19,12 +19,12 @@ const MORE_CHUNKS: u8 = 0x00; /// Final chunk indicator. pub const FINAL_CHUNK: u8 = 0xFF; -pub(crate) struct Dechunker { - stream: R, +pub(crate) struct Defragmentizer { + stream: S, buffer: Vec, } -impl Dechunker { +impl Defragmentizer { #[cfg(test)] pub(crate) fn new(stream: R) -> Self { Self { @@ -60,10 +60,10 @@ impl Dechunker { } } -impl Stream for Dechunker +impl Stream for Defragmentizer where - R: Stream + Unpin, - R: Stream, + S: Stream + Unpin, + S: Stream, { type Item = Bytes; diff --git a/src/frame_reader.rs b/src/frame_reader.rs new file mode 100644 index 0000000000..6eb9474450 --- /dev/null +++ b/src/frame_reader.rs @@ -0,0 +1,101 @@ +use std::{pin::Pin, task::Poll}; + +use bytes::{Buf, Bytes, BytesMut}; +use futures::{AsyncRead, Stream}; + +use crate::error::Error; + +const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); +#[cfg(test)] +const BUFFER_SIZE: usize = 8; +#[cfg(not(test))] +const BUFFER_SIZE: usize = 1024; + +pub(crate) struct FrameReader { + stream: R, + buffer: BytesMut, +} + +impl FrameReader { + #[cfg(test)] + pub(crate) fn new(stream: R) -> Self { + Self { + stream, + buffer: BytesMut::new(), + } + } +} + +fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Error> { + let bytes_in_buffer = buffer.remaining(); + if bytes_in_buffer < LENGTH_MARKER_SIZE { + return Ok(None); + } + let data_length = u16::from_le_bytes( + buffer[0..LENGTH_MARKER_SIZE] + .try_into() + .map_err(|_| Error::IncorrectFrameLength)?, + ) as usize; + + let end = LENGTH_MARKER_SIZE + data_length; + + if bytes_in_buffer < end { + return Ok(None); + } + + let mut full_frame = buffer.split_to(end); + let _ = full_frame.get_u16_le(); + + Ok(Some(full_frame)) +} + +impl Stream for FrameReader +where + R: AsyncRead + Unpin, +{ + // TODO: Ultimately, this should become Result. + type Item = Bytes; + + // TODO: Add UTs for all paths + fn poll_next( + self: Pin<&mut Self>, + cx: &mut std::task::Context<'_>, + ) -> Poll> { + let FrameReader { + ref mut stream, + ref mut buffer, + } = self.get_mut(); + loop { + match length_delimited_frame(buffer) { + Ok(result) => match result { + Some(frame) => return Poll::Ready(Some(frame.freeze())), + None => { + let start = buffer.len(); + let end = start + BUFFER_SIZE; + buffer.resize(end, 0xBA); + + match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { + Poll::Ready(result) => match result { + Ok(bytes_read) => { + buffer.truncate(start + bytes_read); + dbg!(&buffer); + + // For testing purposes assume that when the stream is empty + // we finish processing. In production, we'll keep waiting + // for more data to arrive. + #[cfg(test)] + if bytes_read == 0 { + return Poll::Ready(None); + } + } + Err(err) => panic!("poll_read() failed: {}", err), + }, + Poll::Pending => return Poll::Pending, + } + } + }, + Err(err) => panic!("length_delimited_frame() failed: {}", err), + } + } + } +} diff --git a/src/lib.rs b/src/lib.rs index c7095c8916..4be28fde63 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,9 +1,9 @@ pub mod backpressured; pub mod chunked; pub mod error; +pub mod frame_reader; pub mod length_prefixed; pub mod mux; -pub mod reader; use bytes::Buf; @@ -74,11 +74,11 @@ pub(crate) mod tests { use futures::{future, stream, FutureExt, SinkExt, StreamExt}; use crate::{ - chunked::Dechunker, + chunked::Defragmentizer, chunked::{chunk_frame, SingleChunk}, error::Error, + frame_reader::FrameReader, length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, - reader::Reader, }; /// Collects everything inside a `Buf` into a `Vec`. @@ -129,7 +129,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let dechunker = Dechunker::new(Reader::new(stream)); + let dechunker = Defragmentizer::new(FrameReader::new(stream)); let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); assert_eq!( @@ -143,7 +143,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; - let dechunker = Dechunker::new(Reader::new(stream)); + let dechunker = Defragmentizer::new(FrameReader::new(stream)); let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); assert_eq!(expected, messages); diff --git a/src/reader.rs b/src/reader.rs deleted file mode 100644 index 6593fc10cd..0000000000 --- a/src/reader.rs +++ /dev/null @@ -1,96 +0,0 @@ -use std::{pin::Pin, task::Poll}; - -use bytes::{Buf, Bytes, BytesMut}; -use futures::{AsyncRead, Stream}; - -use crate::error::Error; - -const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); - -pub(crate) struct Reader { - stream: R, - buffer: BytesMut, -} - -impl Reader { - #[cfg(test)] - pub(crate) fn new(stream: R) -> Self { - Self { - stream, - buffer: BytesMut::new(), - } - } - - // If there's a full frame in the bufer, it's length is returned. - fn have_full_frame(&self) -> Result, Error> { - let bytes_in_buffer = self.buffer.remaining(); - if bytes_in_buffer < LENGTH_MARKER_SIZE { - return Ok(None); - } - - let data_length = u16::from_le_bytes( - self.buffer[0..LENGTH_MARKER_SIZE] - .try_into() - .map_err(|_| Error::IncorrectFrameLength)?, - ) as usize; - - if bytes_in_buffer < LENGTH_MARKER_SIZE + data_length { - return Ok(None); - } - - Ok(Some(LENGTH_MARKER_SIZE + data_length)) - } -} - -impl Stream for Reader -where - R: AsyncRead + Unpin, -{ - type Item = Bytes; - - // TODO: Add UTs for all paths - fn poll_next( - mut self: Pin<&mut Self>, - cx: &mut std::task::Context<'_>, - ) -> Poll> { - let mut intermediate_buffer = [0; 128]; - let mut reader_mut = self.as_mut(); - let frame_length = loop { - match reader_mut.have_full_frame() { - Ok(maybe_length) => match maybe_length { - Some(frame_length) => break frame_length, - None => { - // TODO: Borrow checker doesn't like using `reader_mut.buffer` directly. - match Pin::new(&mut reader_mut.stream) - .poll_read(cx, &mut intermediate_buffer) - { - Poll::Ready(result) => match result { - Ok(count) => { - // For testing purposes assume that when the stream is empty - // we finish processing. In production, we'll keep waiting - // for more data to arrive. - #[cfg(test)] - if count == 0 { - return Poll::Ready(None); - } - - reader_mut - .buffer - .extend_from_slice(&intermediate_buffer[0..count]) - } - Err(err) => panic!("error on Reader::poll_read(): {}", err), - }, - Poll::Pending => return Poll::Pending, - } - } - }, - Err(err) => panic!("error on have_full_frame(): {}", err), - } - }; - - let mut frame_data = reader_mut.buffer.split_to(frame_length); - let _ = frame_data.split_to(LENGTH_MARKER_SIZE); - - Poll::Ready(Some(frame_data.freeze())) - } -} From 15d149b6930a78f892656527f29d7bbe660f5444 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 3 Jun 2022 16:22:17 +0200 Subject: [PATCH 048/735] Add test for `FrameReader` --- src/frame_reader.rs | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 6eb9474450..6d55d31484 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -78,7 +78,6 @@ where Poll::Ready(result) => match result { Ok(bytes_read) => { buffer.truncate(start + bytes_read); - dbg!(&buffer); // For testing purposes assume that when the stream is empty // we finish processing. In production, we'll keep waiting @@ -99,3 +98,26 @@ where } } } + +#[cfg(test)] +mod tests { + use futures::{FutureExt, StreamExt}; + + use crate::frame_reader::FrameReader; + + #[test] + fn produces_fragments_from_stream() { + let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; + let expected = vec![ + b"\x00ABCDE".to_vec(), + b"\x00FGHIJ".to_vec(), + b"\xffKL".to_vec(), + b"\xffM".to_vec(), + ]; + + let dechunker = FrameReader::new(stream); + + let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); + assert_eq!(expected, messages); + } +} From e354d5895ea8e5876a4b1ff9ff5d4e4205d06edf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Tue, 7 Jun 2022 09:49:29 +0200 Subject: [PATCH 049/735] Refactor `Defragmentizer` --- src/chunked.rs | 101 +++++++++++++++++++++++++------------------------ 1 file changed, 51 insertions(+), 50 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index e5851987e1..5d6d9cd178 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -32,32 +32,47 @@ impl Defragmentizer { buffer: vec![], } } +} - // If there's a full frame in the bufer, the index of the last chunk is returned. - fn have_full_message(&self) -> Option { - self.buffer - .iter() - .enumerate() - .find(|(_, chunk)| { - let maybe_first_byte = chunk.first(); - match maybe_first_byte { - Some(first_byte) => first_byte == &FINAL_CHUNK, - None => panic!("chunk without continuation byte encountered"), - } - }) - .map(|(index, _)| index) +fn buffer_size_hint(buffer: &mut Vec, final_fragment_index: usize) -> usize { + let maybe_first_fragment = buffer.first(); + match maybe_first_fragment { + Some(first_fragment) => first_fragment.len() * (final_fragment_index + 1), + None => 0, } +} - // Tries to calculate the expected size of the next message. - // If not possible, returns 0, indicating that the caller - // needs to assume that the size of the next message is unknown. - fn buffer_size_hint(&self, final_chunk_index: usize) -> usize { - let maybe_first_chunk = self.buffer.first(); - match maybe_first_chunk { - Some(first_chunk) => first_chunk.len() * (final_chunk_index + 1), - None => 0, - } - } +fn defragmentize(buffer: &mut Vec) -> Result, Error> { + // TODO: We can do better (i.e. without double iteration) + let last_fragment_index = match buffer + .iter() + .enumerate() + .find(|(_, chunk)| { + let maybe_first_byte = chunk.first(); + match maybe_first_byte { + Some(first_byte) => first_byte == &FINAL_CHUNK, + None => panic!("chunk without continuation byte encountered"), + } + }) + .map(|(index, _)| index) + { + Some(last_fragment_index) => last_fragment_index, + None => return Ok(None), + }; + + let mut intermediate_buffer = + BytesMut::with_capacity(buffer_size_hint(buffer, last_fragment_index)); + buffer + .iter() + .take(last_fragment_index + 1) + .map(|fragment| match fragment.split_first() { + Some((_, fragment_data)) => fragment_data, + None => panic!("encountered fragment with zero size"), + }) + .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); + buffer.drain(0..last_fragment_index + 1); + + return Ok(Some(intermediate_buffer)); } impl Stream for Defragmentizer @@ -71,36 +86,22 @@ where mut self: std::pin::Pin<&mut Self>, cx: &mut std::task::Context<'_>, ) -> std::task::Poll> { - let mut dechunker_mut = self.as_mut(); - let final_chunk_index = loop { - match dechunker_mut.have_full_message() { - Some(final_chunk_index) => { - break final_chunk_index; - } - None => match Pin::new(&mut dechunker_mut.stream).poll_next(cx) { - Poll::Ready(result) => match result { - Some(chunk) => dechunker_mut.buffer.push(chunk), - None => return Poll::Ready(None), + let mut defragmentizer_mut = self.as_mut(); + loop { + match defragmentize(&mut defragmentizer_mut.buffer) { + Ok(result) => match result { + Some(fragment) => return Poll::Ready(Some(fragment.freeze())), + None => match Pin::new(&mut defragmentizer_mut.stream).poll_next(cx) { + Poll::Ready(maybe_chunk) => match maybe_chunk { + Some(chunk) => defragmentizer_mut.buffer.push(chunk), + None => return Poll::Ready(None), + }, + Poll::Pending => return Poll::Pending, }, - Poll::Pending => return Poll::Pending, }, + Err(err) => panic!("defragmentize() failed: {}", err), } - }; - - let mut intermediate_buffer = - BytesMut::with_capacity(dechunker_mut.buffer_size_hint(final_chunk_index)); - - dechunker_mut - .buffer - .iter() - .take(final_chunk_index + 1) - .map(|chunk| match chunk.split_first() { - Some((_, chunk_data)) => chunk_data, - None => panic!("encountered chunk with zero size"), - }) - .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); - dechunker_mut.buffer.drain(0..final_chunk_index + 1); - Poll::Ready(Some(intermediate_buffer.freeze())) + } } } From f8fcfdbad83385142aab11d794efbeaac6bdaf5d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Tue, 7 Jun 2022 09:55:13 +0200 Subject: [PATCH 050/735] Code optimization --- src/chunked.rs | 14 +++++--------- src/frame_reader.rs | 45 +++++++++++++++++++++------------------------ 2 files changed, 26 insertions(+), 33 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 5d6d9cd178..f7a70c6e9c 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -89,15 +89,11 @@ where let mut defragmentizer_mut = self.as_mut(); loop { match defragmentize(&mut defragmentizer_mut.buffer) { - Ok(result) => match result { - Some(fragment) => return Poll::Ready(Some(fragment.freeze())), - None => match Pin::new(&mut defragmentizer_mut.stream).poll_next(cx) { - Poll::Ready(maybe_chunk) => match maybe_chunk { - Some(chunk) => defragmentizer_mut.buffer.push(chunk), - None => return Poll::Ready(None), - }, - Poll::Pending => return Poll::Pending, - }, + Ok(Some(fragment)) => return Poll::Ready(Some(fragment.freeze())), + Ok(None) => match Pin::new(&mut defragmentizer_mut.stream).poll_next(cx) { + Poll::Ready(Some(chunk)) => defragmentizer_mut.buffer.push(chunk), + Poll::Ready(None) => return Poll::Ready(None), + Poll::Pending => return Poll::Pending, }, Err(err) => panic!("defragmentize() failed: {}", err), } diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 6d55d31484..93259de147 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -67,32 +67,29 @@ where } = self.get_mut(); loop { match length_delimited_frame(buffer) { - Ok(result) => match result { - Some(frame) => return Poll::Ready(Some(frame.freeze())), - None => { - let start = buffer.len(); - let end = start + BUFFER_SIZE; - buffer.resize(end, 0xBA); - - match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { - Poll::Ready(result) => match result { - Ok(bytes_read) => { - buffer.truncate(start + bytes_read); - - // For testing purposes assume that when the stream is empty - // we finish processing. In production, we'll keep waiting - // for more data to arrive. - #[cfg(test)] - if bytes_read == 0 { - return Poll::Ready(None); - } - } - Err(err) => panic!("poll_read() failed: {}", err), - }, - Poll::Pending => return Poll::Pending, + Ok(Some(frame)) => return Poll::Ready(Some(frame.freeze())), + Ok(None) => { + let start = buffer.len(); + let end = start + BUFFER_SIZE; + buffer.resize(end, 0xBA); + + match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { + Poll::Ready(Ok(bytes_read)) => { + buffer.truncate(start + bytes_read); + + // For testing purposes assume that when the stream is empty + // we finish processing. In production, we'll keep waiting + // for more data to arrive. + #[cfg(test)] + if bytes_read == 0 { + return Poll::Ready(None); + } } + Poll::Ready(Err(err)) => panic!("poll_read() failed: {}", err), + Poll::Pending => return Poll::Pending, } - }, + } + Err(err) => panic!("length_delimited_frame() failed: {}", err), } } From 2d86335a157c48e4c9ed7a5a1a18880df8aae904 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Tue, 7 Jun 2022 10:05:47 +0200 Subject: [PATCH 051/735] Add test for `defragmentize` --- src/chunked.rs | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/src/chunked.rs b/src/chunked.rs index f7a70c6e9c..1bc7680c75 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -129,7 +129,12 @@ pub fn chunk_frame( #[cfg(test)] mod tests { - use crate::tests::collect_buf; + use bytes::Bytes; + + use crate::{ + chunked::{defragmentize, Defragmentizer}, + tests::collect_buf, + }; use super::chunk_frame; @@ -180,4 +185,19 @@ mod tests { assert_eq!(chunks, vec![b"\xff012345".to_vec()]); } + + #[test] + fn defragments() { + let mut buffer = vec![ + Bytes::from(&b"\x00ABCDE"[..]), + Bytes::from(&b"\x00FGHIJ"[..]), + Bytes::from(&b"\xffKL"[..]), + Bytes::from(&b"\xffM"[..]), + ]; + + let fragment = defragmentize(&mut buffer).unwrap().unwrap(); + assert_eq!(fragment, &b"ABCDEFGHIJKL"[..]); + let fragment = defragmentize(&mut buffer).unwrap().unwrap(); + assert_eq!(fragment, &b"M"[..]); + } } From 65e6bab72605f61ee3b53bc3a223587b9d87209e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Tue, 7 Jun 2022 10:06:46 +0200 Subject: [PATCH 052/735] Satisfy Clippy --- src/chunked.rs | 4 ++-- src/mux.rs | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 1bc7680c75..8b0c7ba305 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -34,7 +34,7 @@ impl Defragmentizer { } } -fn buffer_size_hint(buffer: &mut Vec, final_fragment_index: usize) -> usize { +fn buffer_size_hint(buffer: &mut [Bytes], final_fragment_index: usize) -> usize { let maybe_first_fragment = buffer.first(); match maybe_first_fragment { Some(first_fragment) => first_fragment.len() * (final_fragment_index + 1), @@ -72,7 +72,7 @@ fn defragmentize(buffer: &mut Vec) -> Result, Error> { .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); buffer.drain(0..last_fragment_index + 1); - return Ok(Some(intermediate_buffer)); + Ok(Some(intermediate_buffer)) } impl Stream for Defragmentizer diff --git a/src/mux.rs b/src/mux.rs index e23d21cf68..a3ae8aa267 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -144,7 +144,7 @@ impl Multiplexer { /// `channel` value. pub fn get_channel_handle(self: Arc, channel: u8) -> MultiplexerHandle { MultiplexerHandle { - multiplexer: self.clone(), + multiplexer: self, slot: channel, } } From 9ad55c7d95f9a810a63da04b8f31661f06088620 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Tue, 7 Jun 2022 14:40:21 +0200 Subject: [PATCH 053/735] Do not manually implement `Defragmentizer` --- src/chunked.rs | 145 +++++++++++++------------------------------------ src/lib.rs | 13 +++-- 2 files changed, 46 insertions(+), 112 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 8b0c7ba305..a4bfc9f660 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -4,103 +4,21 @@ //! continuation byte, which is `0x00` if more chunks are following, `0xFF` if this is the frame's //! last chunk. -use std::{num::NonZeroUsize, pin::Pin, task::Poll}; +use std::{future, num::NonZeroUsize}; -use bytes::{Buf, Bytes, BytesMut}; -use futures::Stream; +use bytes::{Buf, BufMut, Bytes, BytesMut}; +use futures::{Stream, StreamExt}; use crate::{error::Error, ImmediateFrame}; pub type SingleChunk = bytes::buf::Chain, Bytes>; /// Indicator that more chunks are following. -const MORE_CHUNKS: u8 = 0x00; +pub const MORE_CHUNKS: u8 = 0x00; /// Final chunk indicator. pub const FINAL_CHUNK: u8 = 0xFF; -pub(crate) struct Defragmentizer { - stream: S, - buffer: Vec, -} - -impl Defragmentizer { - #[cfg(test)] - pub(crate) fn new(stream: R) -> Self { - Self { - stream, - buffer: vec![], - } - } -} - -fn buffer_size_hint(buffer: &mut [Bytes], final_fragment_index: usize) -> usize { - let maybe_first_fragment = buffer.first(); - match maybe_first_fragment { - Some(first_fragment) => first_fragment.len() * (final_fragment_index + 1), - None => 0, - } -} - -fn defragmentize(buffer: &mut Vec) -> Result, Error> { - // TODO: We can do better (i.e. without double iteration) - let last_fragment_index = match buffer - .iter() - .enumerate() - .find(|(_, chunk)| { - let maybe_first_byte = chunk.first(); - match maybe_first_byte { - Some(first_byte) => first_byte == &FINAL_CHUNK, - None => panic!("chunk without continuation byte encountered"), - } - }) - .map(|(index, _)| index) - { - Some(last_fragment_index) => last_fragment_index, - None => return Ok(None), - }; - - let mut intermediate_buffer = - BytesMut::with_capacity(buffer_size_hint(buffer, last_fragment_index)); - buffer - .iter() - .take(last_fragment_index + 1) - .map(|fragment| match fragment.split_first() { - Some((_, fragment_data)) => fragment_data, - None => panic!("encountered fragment with zero size"), - }) - .for_each(|chunk_data| intermediate_buffer.extend(chunk_data)); - buffer.drain(0..last_fragment_index + 1); - - Ok(Some(intermediate_buffer)) -} - -impl Stream for Defragmentizer -where - S: Stream + Unpin, - S: Stream, -{ - type Item = Bytes; - - fn poll_next( - mut self: std::pin::Pin<&mut Self>, - cx: &mut std::task::Context<'_>, - ) -> std::task::Poll> { - let mut defragmentizer_mut = self.as_mut(); - loop { - match defragmentize(&mut defragmentizer_mut.buffer) { - Ok(Some(fragment)) => return Poll::Ready(Some(fragment.freeze())), - Ok(None) => match Pin::new(&mut defragmentizer_mut.stream).poll_next(cx) { - Poll::Ready(Some(chunk)) => defragmentizer_mut.buffer.push(chunk), - Poll::Ready(None) => return Poll::Ready(None), - Poll::Pending => return Poll::Pending, - }, - Err(err) => panic!("defragmentize() failed: {}", err), - } - } - } -} - /// Chunks a frame into ready-to-send chunks. /// /// # Notes @@ -127,14 +45,29 @@ pub fn chunk_frame( })) } +pub(crate) fn make_defragmentizer>(source: S) -> impl Stream { + let mut buffer = vec![]; + source.filter_map(move |mut fragment| { + let first_byte = *fragment.first().expect("missing first byte"); + buffer.push(fragment.split_off(1)); + match first_byte { + FINAL_CHUNK => { + // TODO: Check the true zero-copy approach. + let mut buf = BytesMut::new(); + for fragment in buffer.drain(..) { + buf.put_slice(&fragment); + } + return future::ready(Some(buf.freeze())); + } + MORE_CHUNKS => return future::ready(None), + _ => panic!("garbage found where continuation byte was expected"), + } + }) +} + #[cfg(test)] mod tests { - use bytes::Bytes; - - use crate::{ - chunked::{defragmentize, Defragmentizer}, - tests::collect_buf, - }; + use crate::tests::collect_buf; use super::chunk_frame; @@ -186,18 +119,18 @@ mod tests { assert_eq!(chunks, vec![b"\xff012345".to_vec()]); } - #[test] - fn defragments() { - let mut buffer = vec![ - Bytes::from(&b"\x00ABCDE"[..]), - Bytes::from(&b"\x00FGHIJ"[..]), - Bytes::from(&b"\xffKL"[..]), - Bytes::from(&b"\xffM"[..]), - ]; - - let fragment = defragmentize(&mut buffer).unwrap().unwrap(); - assert_eq!(fragment, &b"ABCDEFGHIJKL"[..]); - let fragment = defragmentize(&mut buffer).unwrap().unwrap(); - assert_eq!(fragment, &b"M"[..]); - } + // #[test] + // fn defragments() { + // let mut buffer = vec![ + // Bytes::from(&b"\x00ABCDE"[..]), + // Bytes::from(&b"\x00FGHIJ"[..]), + // Bytes::from(&b"\xffKL"[..]), + // Bytes::from(&b"\xffM"[..]), + // ]; + + // let fragment = defragmentize(&mut buffer).unwrap().unwrap(); + // assert_eq!(fragment, &b"ABCDEFGHIJKL"[..]); + // let fragment = defragmentize(&mut buffer).unwrap().unwrap(); + // assert_eq!(fragment, &b"M"[..]); + // } } diff --git a/src/lib.rs b/src/lib.rs index 4be28fde63..c1f1254975 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -74,8 +74,7 @@ pub(crate) mod tests { use futures::{future, stream, FutureExt, SinkExt, StreamExt}; use crate::{ - chunked::Defragmentizer, - chunked::{chunk_frame, SingleChunk}, + chunked::{chunk_frame, make_defragmentizer, SingleChunk}, error::Error, frame_reader::FrameReader, length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, @@ -102,6 +101,8 @@ pub(crate) mod tests { let chunk_iter = chunk_frame(frame, 5.try_into().unwrap()).expect("TODO: Handle error"); stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) }); + // TODO: We want this instead. + // let mut chunked_sink = make_fragmentizer(length_prefixed_sink); let sample_data = Bytes::from(&b"QRSTUV"[..]); @@ -129,9 +130,9 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let dechunker = Defragmentizer::new(FrameReader::new(stream)); + let defragmentizer = make_defragmentizer(FrameReader::new(stream)); - let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); + let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!( expected, messages.first().expect("should have at least one message") @@ -143,9 +144,9 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; - let dechunker = Defragmentizer::new(FrameReader::new(stream)); + let defragmentizer = make_defragmentizer(FrameReader::new(stream)); - let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); + let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); } } From ee85f4b9c5950b3464cddb82b37977e4c7ad5b8b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Tue, 7 Jun 2022 14:46:51 +0200 Subject: [PATCH 054/735] Code cleanup --- src/chunked.rs | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index a4bfc9f660..d8f4349f46 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -49,7 +49,7 @@ pub(crate) fn make_defragmentizer>(source: S) -> impl St let mut buffer = vec![]; source.filter_map(move |mut fragment| { let first_byte = *fragment.first().expect("missing first byte"); - buffer.push(fragment.split_off(1)); + buffer.push(fragment.split_off(std::mem::size_of_val(&first_byte))); match first_byte { FINAL_CHUNK => { // TODO: Check the true zero-copy approach. @@ -118,19 +118,4 @@ mod tests { assert_eq!(chunks, vec![b"\xff012345".to_vec()]); } - - // #[test] - // fn defragments() { - // let mut buffer = vec![ - // Bytes::from(&b"\x00ABCDE"[..]), - // Bytes::from(&b"\x00FGHIJ"[..]), - // Bytes::from(&b"\xffKL"[..]), - // Bytes::from(&b"\xffM"[..]), - // ]; - - // let fragment = defragmentize(&mut buffer).unwrap().unwrap(); - // assert_eq!(fragment, &b"ABCDEFGHIJKL"[..]); - // let fragment = defragmentize(&mut buffer).unwrap().unwrap(); - // assert_eq!(fragment, &b"M"[..]); - // } } From 8334dc58a8876a79e4ab1ae18fe1dfa16b8212b8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 8 Jun 2022 13:56:32 +0200 Subject: [PATCH 055/735] Introduce `make_fragmentizer()` function --- src/chunked.rs | 16 +++++++++++++++- src/lib.rs | 28 +++++++++++----------------- src/mux.rs | 2 +- 3 files changed, 27 insertions(+), 19 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index d8f4349f46..a59d205acf 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -7,7 +7,10 @@ use std::{future, num::NonZeroUsize}; use bytes::{Buf, BufMut, Bytes, BytesMut}; -use futures::{Stream, StreamExt}; +use futures::{ + stream::{self}, + Sink, SinkExt, Stream, StreamExt, +}; use crate::{error::Error, ImmediateFrame}; @@ -45,6 +48,17 @@ pub fn chunk_frame( })) } +pub(crate) fn make_fragmentizer(source: S) -> impl Sink> +where + E: std::error::Error, + S: Sink>, +{ + source.with_flat_map(|frame: Bytes| { + let chunk_iter = chunk_frame(frame, 5.try_into().unwrap()).expect("TODO: Handle error"); + stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) + }) +} + pub(crate) fn make_defragmentizer>(source: S) -> impl Stream { let mut buffer = vec![]; source.filter_map(move |mut fragment| { diff --git a/src/lib.rs b/src/lib.rs index c1f1254975..5e1297af66 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -71,11 +71,11 @@ pub(crate) mod tests { use std::io::Read; use bytes::{Buf, Bytes}; - use futures::{future, stream, FutureExt, SinkExt, StreamExt}; + use futures::{future, FutureExt, SinkExt, StreamExt}; + use tokio_util::sync::PollSender; use crate::{ - chunked::{chunk_frame, make_defragmentizer, SingleChunk}, - error::Error, + chunked::{make_defragmentizer, make_fragmentizer, SingleChunk}, frame_reader::FrameReader, length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, }; @@ -92,17 +92,12 @@ pub(crate) mod tests { /// Test an "end-to-end" instance of the assembled pipeline for sending. #[test] fn chunked_length_prefixed_sink() { - let base_sink: Vec> = Vec::new(); + let (tx, mut rx) = tokio::sync::mpsc::channel::>(10); + let poll_sender = PollSender::new(tx); - let length_prefixed_sink = - base_sink.with(|frame| future::ready(frame_add_length_prefix(frame))); - - let mut chunked_sink = length_prefixed_sink.with_flat_map(|frame| { - let chunk_iter = chunk_frame(frame, 5.try_into().unwrap()).expect("TODO: Handle error"); - stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) - }); - // TODO: We want this instead. - // let mut chunked_sink = make_fragmentizer(length_prefixed_sink); + let mut chunked_sink = make_fragmentizer( + poll_sender.with(|frame| future::ready(frame_add_length_prefix(frame))), + ); let sample_data = Bytes::from(&b"QRSTUV"[..]); @@ -112,10 +107,9 @@ pub(crate) mod tests { .unwrap() .expect("send failed"); - let chunks: Vec<_> = chunked_sink - .into_inner() - .into_inner() - .into_iter() + drop(chunked_sink); + + let chunks: Vec<_> = std::iter::from_fn(move || rx.blocking_recv()) .map(collect_buf) .collect(); diff --git a/src/mux.rs b/src/mux.rs index a3ae8aa267..eb09d85b07 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -13,7 +13,7 @@ use std::{ use bytes::Buf; use futures::{Sink, SinkExt}; -use crate::{error::Error, ImmediateFrame}; +use crate::ImmediateFrame; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; From 0c51cd91b1dd782a428109ac12cd53ea414cbe9e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 8 Jun 2022 17:12:58 +0200 Subject: [PATCH 056/735] Let the channel type be inferred --- src/lib.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lib.rs b/src/lib.rs index 5e1297af66..fd865f9185 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -92,7 +92,7 @@ pub(crate) mod tests { /// Test an "end-to-end" instance of the assembled pipeline for sending. #[test] fn chunked_length_prefixed_sink() { - let (tx, mut rx) = tokio::sync::mpsc::channel::>(10); + let (tx, mut rx) = tokio::sync::mpsc::channel(10); let poll_sender = PollSender::new(tx); let mut chunked_sink = make_fragmentizer( From 23fd90dbbd517e9e53c01b17a423f41b4c715ee4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 8 Jun 2022 17:13:06 +0200 Subject: [PATCH 057/735] Satisfy clippy --- src/chunked.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index a59d205acf..0b12470ffa 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -71,9 +71,9 @@ pub(crate) fn make_defragmentizer>(source: S) -> impl St for fragment in buffer.drain(..) { buf.put_slice(&fragment); } - return future::ready(Some(buf.freeze())); + future::ready(Some(buf.freeze())) } - MORE_CHUNKS => return future::ready(None), + MORE_CHUNKS => future::ready(None), _ => panic!("garbage found where continuation byte was expected"), } }) From 91bd40b60fc7b4f5acf42112b6c6a0f67971fb8f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 31 May 2022 17:30:19 +0200 Subject: [PATCH 058/735] Draft implementation based on tokio mutexes --- src/mux.rs | 240 ++++++++++++++++------------------------------------- 1 file changed, 72 insertions(+), 168 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index e23d21cf68..2c93171e96 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -4,220 +4,124 @@ //! each to avoid starvation or flooding. use std::{ - fmt::Debug, + mem, pin::Pin, - sync::{Arc, Mutex}, + sync::Arc, task::{Context, Poll}, }; use bytes::Buf; -use futures::{Sink, SinkExt}; +use futures::{ + future::{BoxFuture, Fuse, FusedFuture}, + Future, FutureExt, Sink, SinkExt, +}; +use tokio::sync::{Mutex, OwnedMutexGuard}; +use tokio_util::sync::ReusableBoxFuture; use crate::{error::Error, ImmediateFrame}; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; -/// A waiting list handing out turns to interested participants in round-robin fashion. -/// -/// The list is set up with a set of `n` participants labelled from `0..(n-1)` and no active -/// participant. Any participant can attempt to acquire the lock by calling the `try_acquire` -/// function. -/// -/// If the lock is currently unavailable, the participant will be put in a wait queue and is -/// guaranteed a turn "in order" at some point when it calls `try_acquire` again. If a participant -/// has not registered interest in obtaining the lock their turn is skipped. -/// -/// Once work has been completed, the lock must manually be released using the `end_turn` -/// -/// This "lock" differs from `Mutex` in multiple ways: -/// -/// * Mutable access required: Counterintuitively this lock needs to be wrapped in a `Mutex` to -/// guarding access to its internals. -/// * No notifications/waiting: There is no way to wait for the lock to become available, rather it -/// is assumed participants get an external notification indication that the lock might now be -/// available. -/// * Advisory: No actual access control is enforced by the type system, rather it is assumed that -/// clients are well behaved and respect the lock. -/// (TODO: We can possibly put a ghost cell here to enforce it) -/// * Fixed set of participants: The total set of participants must be specified in advance. -#[derive(Debug)] -struct RoundRobinAdvisoryLock { - /// The currently active lock holder. - active: Option, - /// Participants wanting to take a turn. - waiting: Vec, -} - -impl RoundRobinAdvisoryLock { - /// Creates a new round robin advisory lock with the given number of participants. - pub fn new(num_participants: u8) -> Self { - let mut waiting = Vec::new(); - waiting.resize(num_participants as usize, false); - - Self { - active: None, - waiting, - } - } - - /// Tries to take a turn on the wait list. - /// - /// If it is our turn, or if the wait list was empty, marks us as active and returns `true`. - /// Otherwise, marks `me` as wanting a turn and returns `false`. - /// - /// # Safety - /// - /// A participant MUST NOT give up on calling `try_acquire` once it has called it once, as the - /// lock will ultimately prevent any other participant from acquiring it while the interested is - /// registered. - /// - /// # Panics - /// - /// Panics if `me` is not a participant in the initial set of participants. - fn try_acquire(&mut self, me: u8) -> bool { - debug_assert!( - self.waiting.len() as u8 > me, - "participant out of bounds in advisory lock" - ); - - if let Some(active) = self.active { - if active == me { - return true; - } - - // Someone is already sending, mark us as interested. - self.waiting[me as usize] = true; - return false; - } - - // If we reached this, no one was sending, mark us as active. - self.active = Some(me); - true - } - - /// Finish taking a turn. - /// - /// This function must only be called if `try_take_turn` returned `true` and the wait has not - /// been modified in the meantime. - /// - /// # Panic - /// - /// Panics if the active turn was modified in the meantime. - fn release(&mut self, me: u8) { - assert_eq!( - self.active, - Some(me), - "tried to release unacquired advisory lock" - ); - - // We finished our turn, mark us as no longer interested. - self.waiting[me as usize] = false; - - // Now determine the next slot in line. - for offset in 0..self.waiting.len() { - let idx = (me as usize + offset) % self.waiting.len(); - if self.waiting[idx] { - self.active = Some(idx as u8); - return; - } - } - - // We found no slot, so we're inactive. - self.active = None; - } -} - /// A frame multiplexer. /// /// Typically the multiplexer is not used directly, but used to spawn multiplexing handles. struct Multiplexer { - wait_list: Mutex, - sink: Mutex>, + sink: Arc>>, } impl Multiplexer { /// Create a handle for a specific multiplexer channel on this multiplexer. - /// - /// # Safety - /// - /// This function **must not** be called multiple times on the same `Multiplexer` with the same - /// `channel` value. pub fn get_channel_handle(self: Arc, channel: u8) -> MultiplexerHandle { MultiplexerHandle { multiplexer: self.clone(), slot: channel, + lock_future: todo!(), + guard: None, } } } +type SinkGuard = OwnedMutexGuard>; + +trait FuseFuture: Future + FusedFuture + Send {} +impl FuseFuture for T where T: Future + FusedFuture + Send {} + +type BoxFusedFuture<'a, T> = Pin + Send + 'a>>; + struct MultiplexerHandle { multiplexer: Arc>, slot: u8, + // TODO: We ideally want to reuse the alllocated memory here, + // mem::replace, then Box::Pin on it. + + // TODO NEW IDEA: Maybe we can create the lock future right away, but never poll it? Then use + // the `ReusableBoxFuture` and always create a new one right away? Need to check + // source of `lock`. + lock_future: Box> + Send + 'static>, + guard: Option>, +} + +impl MultiplexerHandle { + fn assume_get_sink(&mut self) -> &mut S { + match self.guard { + Some(ref mut guard) => { + let mref = guard.as_mut().expect("TODO: guard disappeard"); + mref + } + None => todo!("assumed sink, but no sink"), + } + } } impl Sink for MultiplexerHandle where - S: Sink> + Unpin, + S: Sink> + Unpin + Send + 'static, F: Buf, { type Error = >>::Error; - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - // Required invariant: For any channel there is only one handle, thus we are the only one - // writing to the `waiting[n]` atomic bool. - - // Try to grab a slot on the wait list (will put us into the queue if we don't get one). - let our_turn = self - .multiplexer - .wait_list - .lock() - .expect("TODO handle poisoning") - .try_acquire(self.slot); - - // At this point, we no longer hold the `wait_list` lock. - - if !our_turn { - Poll::Pending - } else { - // We are now active, check if the sink is ready. - match *self.multiplexer.sink.lock().expect("TODO: Lock Poisoning") { - Some(ref mut sink_ref) => sink_ref.poll_ready_unpin(cx), - None => todo!("handle closed multiplexer"), + fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let guard = match self.guard { + None => { + // We do not hold the lock yet. If there is no future to acquire it, create one. + if self.lock_fused { + let new_fut = self.multiplexer.sink.clone().lock_owned(); + + mem::replace(&mut self.lock_future, new_fut); + let fut = self.multiplexer.sink.clone().lock_owned().fused().boxed(); + // TODO: mem::replace here? + self.lock_future = fut; + } + + let fut = &mut self.lock_future; + + let guard = match fut.poll_unpin(cx) { + Poll::Ready(guard) => { + // Lock acquired. Store it and clear the future, so we don't poll it again. + self.guard.insert(guard) + } + Poll::Pending => return Poll::Pending, + }; + + guard } - } + Some(ref mut guard) => guard, + }; + + // Now that we hold the lock, poll the sink. + self.assume_get_sink().poll_ready_unpin(cx) } - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let prefixed = ImmediateFrame::from(self.slot).chain(item); - - let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); - - match *guard { - Some(ref mut sink_ref) => sink_ref.start_send_unpin(prefixed), - None => todo!("handle closed multiplexer"), - } + self.assume_get_sink().start_send_unpin(prefixed) } - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { // Obtain the flush result, then release the sink lock. - let flush_result = { - let mut guard = self.multiplexer.sink.lock().expect("TODO: Lock Poisoning"); - - match *guard { - Some(ref mut sink) => sink.poll_flush_unpin(cx), - None => todo!("TODO: MISSING SINK"), - } - }; - - match flush_result { + match self.assume_get_sink().poll_flush_unpin(cx) { Poll::Ready(Ok(())) => { // Acquire wait list lock to update it. - self.multiplexer - .wait_list - .lock() - .expect("TODO: Lock poisoning") - .release(self.slot); - Poll::Ready(Ok(())) } Poll::Ready(Err(_)) => { From b8a001803dc635b932ee38976f3629694e3a9235 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 7 Jun 2022 15:53:55 +0200 Subject: [PATCH 059/735] Write first reusable future version of `mux` --- src/mux.rs | 59 +++++++++++++++++++++++++++--------------------------- 1 file changed, 29 insertions(+), 30 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 2c93171e96..2f9ec4ac8a 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -51,17 +51,19 @@ type BoxFusedFuture<'a, T> = Pin + Send + 'a>>; struct MultiplexerHandle { multiplexer: Arc>, slot: u8, - // TODO: We ideally want to reuse the alllocated memory here, - // mem::replace, then Box::Pin on it. // TODO NEW IDEA: Maybe we can create the lock future right away, but never poll it? Then use // the `ReusableBoxFuture` and always create a new one right away? Need to check - // source of `lock`. - lock_future: Box> + Send + 'static>, + // source of `lock`. Write a test for this? + // lock_future: Box> + Send + 'static>, + lock_future: ReusableBoxFuture<'static, SinkGuard>, guard: Option>, } -impl MultiplexerHandle { +impl MultiplexerHandle +where + S: Send + 'static, +{ fn assume_get_sink(&mut self) -> &mut S { match self.guard { Some(ref mut guard) => { @@ -71,6 +73,14 @@ impl MultiplexerHandle { None => todo!("assumed sink, but no sink"), } } + + fn refresh_lock_future( + multiplexer: Arc>, + lock_future: &mut ReusableBoxFuture<'static, SinkGuard>, + ) { + let lck_fut = multiplexer.sink.clone().lock_owned(); + lock_future.set(lck_fut); + } } impl Sink for MultiplexerHandle @@ -81,34 +91,23 @@ where type Error = >>::Error; fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let guard = match self.guard { - None => { - // We do not hold the lock yet. If there is no future to acquire it, create one. - if self.lock_fused { - let new_fut = self.multiplexer.sink.clone().lock_owned(); - - mem::replace(&mut self.lock_future, new_fut); - let fut = self.multiplexer.sink.clone().lock_owned().fused().boxed(); - // TODO: mem::replace here? - self.lock_future = fut; + if self.guard.is_none() { + // We do not hold the guard at the moment, so attempt to acquire it. + match self.lock_future.poll_unpin(cx) { + Poll::Ready(guard) => { + // It is our turn: Save the guard and prepare another locking future for later, + // which will not attempt to lock until first polled. + let _ = self.guard.insert(guard); + Self::refresh_lock_future(self.multiplexer.clone(), &mut self.lock_future); + } + Poll::Pending => { + // The lock could not be acquired yet. + return Poll::Pending; } - - let fut = &mut self.lock_future; - - let guard = match fut.poll_unpin(cx) { - Poll::Ready(guard) => { - // Lock acquired. Store it and clear the future, so we don't poll it again. - self.guard.insert(guard) - } - Poll::Pending => return Poll::Pending, - }; - - guard } - Some(ref mut guard) => guard, - }; + } - // Now that we hold the lock, poll the sink. + // At this point we have acquired the lock, now our only job is to stuff data into the sink. self.assume_get_sink().poll_ready_unpin(cx) } From 825f34d4634dd628068301078be1123dc1514fe7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Jun 2022 12:25:08 +0200 Subject: [PATCH 060/735] Fix all warnings in `mux` module --- src/mux.rs | 38 +++++++++++++++++--------------------- 1 file changed, 17 insertions(+), 21 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 2f9ec4ac8a..b072503293 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -4,38 +4,37 @@ //! each to avoid starvation or flooding. use std::{ - mem, pin::Pin, sync::Arc, task::{Context, Poll}, }; use bytes::Buf; -use futures::{ - future::{BoxFuture, Fuse, FusedFuture}, - Future, FutureExt, Sink, SinkExt, -}; +use futures::{future::FusedFuture, Future, FutureExt, Sink, SinkExt}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; -use crate::{error::Error, ImmediateFrame}; +use crate::ImmediateFrame; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; /// A frame multiplexer. /// /// Typically the multiplexer is not used directly, but used to spawn multiplexing handles. -struct Multiplexer { +pub struct Multiplexer { sink: Arc>>, } -impl Multiplexer { +impl Multiplexer +where + S: Send + 'static, +{ /// Create a handle for a specific multiplexer channel on this multiplexer. pub fn get_channel_handle(self: Arc, channel: u8) -> MultiplexerHandle { MultiplexerHandle { multiplexer: self.clone(), slot: channel, - lock_future: todo!(), + lock_future: ReusableBoxFuture::new(mk_lock_future(self)), guard: None, } } @@ -46,9 +45,13 @@ type SinkGuard = OwnedMutexGuard>; trait FuseFuture: Future + FusedFuture + Send {} impl FuseFuture for T where T: Future + FusedFuture + Send {} -type BoxFusedFuture<'a, T> = Pin + Send + 'a>>; +fn mk_lock_future( + multiplexer: Arc>, +) -> impl futures::Future>> { + multiplexer.sink.clone().lock_owned() +} -struct MultiplexerHandle { +pub struct MultiplexerHandle { multiplexer: Arc>, slot: u8, @@ -73,14 +76,6 @@ where None => todo!("assumed sink, but no sink"), } } - - fn refresh_lock_future( - multiplexer: Arc>, - lock_future: &mut ReusableBoxFuture<'static, SinkGuard>, - ) { - let lck_fut = multiplexer.sink.clone().lock_owned(); - lock_future.set(lck_fut); - } } impl Sink for MultiplexerHandle @@ -98,7 +93,8 @@ where // It is our turn: Save the guard and prepare another locking future for later, // which will not attempt to lock until first polled. let _ = self.guard.insert(guard); - Self::refresh_lock_future(self.multiplexer.clone(), &mut self.lock_future); + let multiplexer = self.multiplexer.clone(); + self.lock_future.set(mk_lock_future(multiplexer)); } Poll::Pending => { // The lock could not be acquired yet. @@ -131,7 +127,7 @@ where } } - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + fn poll_close(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { // Simply close? Note invariants, possibly checking them in debug mode. todo!() } From 30101748d50b401fdba3d9867dbdb2f97c0ad024 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Jun 2022 13:01:05 +0200 Subject: [PATCH 061/735] Share a `sink` among handlers, not the entire multiplexer --- src/mux.rs | 38 +++++++++++++++++++++++--------------- 1 file changed, 23 insertions(+), 15 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index b072503293..e96048cf4f 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -20,21 +20,27 @@ pub type ChannelPrefixedFrame = bytes::buf::Chain, F> /// A frame multiplexer. /// -/// Typically the multiplexer is not used directly, but used to spawn multiplexing handles. +/// A multiplexer is not used directly, but used to spawn multiplexing handles. pub struct Multiplexer { sink: Arc>>, } +impl Multiplexer { + /// Creates a new multiplexer with the given sink. + pub fn new(sink: S) -> Self { + Self { + sink: Arc::new(Mutex::new(Some(sink))), + } + } -impl Multiplexer -where - S: Send + 'static, -{ /// Create a handle for a specific multiplexer channel on this multiplexer. - pub fn get_channel_handle(self: Arc, channel: u8) -> MultiplexerHandle { + pub fn get_channel_handle(&self, channel: u8) -> MultiplexerHandle + where + S: Send + 'static, + { MultiplexerHandle { - multiplexer: self.clone(), + sink: self.sink.clone(), slot: channel, - lock_future: ReusableBoxFuture::new(mk_lock_future(self)), + lock_future: ReusableBoxFuture::new(mk_lock_future(self.sink.clone())), guard: None, } } @@ -46,13 +52,13 @@ trait FuseFuture: Future + FusedFuture + Send {} impl FuseFuture for T where T: Future + FusedFuture + Send {} fn mk_lock_future( - multiplexer: Arc>, -) -> impl futures::Future>> { - multiplexer.sink.clone().lock_owned() + sink: Arc>>, +) -> impl futures::Future>> { + sink.lock_owned() } pub struct MultiplexerHandle { - multiplexer: Arc>, + sink: Arc>>, slot: u8, // TODO NEW IDEA: Maybe we can create the lock future right away, but never poll it? Then use @@ -73,7 +79,9 @@ where let mref = guard.as_mut().expect("TODO: guard disappeard"); mref } - None => todo!("assumed sink, but no sink"), + None => { + todo!("TODO: assumed sink, but no sink -- this could actually be a removed sink") + } } } } @@ -93,8 +101,8 @@ where // It is our turn: Save the guard and prepare another locking future for later, // which will not attempt to lock until first polled. let _ = self.guard.insert(guard); - let multiplexer = self.multiplexer.clone(); - self.lock_future.set(mk_lock_future(multiplexer)); + let sink = self.sink.clone(); + self.lock_future.set(mk_lock_future(sink)); } Poll::Pending => { // The lock could not be acquired yet. From d7e4a5c305e0fb5466e39bf3632395bd2364b3a2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Jun 2022 13:31:04 +0200 Subject: [PATCH 062/735] Cleanup and document `Multiplexer` code sans errors --- src/mux.rs | 113 ++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 82 insertions(+), 31 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index e96048cf4f..5be77d60f9 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -1,7 +1,15 @@ //! Stream multiplexing //! //! Multiplexes multiple sinks into a single one, allowing no more than one frame to be buffered for -//! each to avoid starvation or flooding. +//! each. Up to 256 channels are supported, being encoded with a leading byte on the underlying +//! downstream. +//! +//! ## Fairness +//! +//! Multiplexing is fair per handle, that is every handle is eventually guaranteed to receive a slot +//! for sending on the underlying sink. Under maximal contention, every `MultiplexerHandle` will +//! receive `1/n` of the slots, with `n` being the total number of multiplexers, with no handle +//! being able to send more than twice without all other waiting handles receiving a slot. use std::{ pin::Pin, @@ -10,7 +18,7 @@ use std::{ }; use bytes::Buf; -use futures::{future::FusedFuture, Future, FutureExt, Sink, SinkExt}; +use futures::{FutureExt, Sink, SinkExt}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; @@ -22,8 +30,10 @@ pub type ChannelPrefixedFrame = bytes::buf::Chain, F> /// /// A multiplexer is not used directly, but used to spawn multiplexing handles. pub struct Multiplexer { + /// The shared sink for output. sink: Arc>>, } + impl Multiplexer { /// Creates a new multiplexer with the given sink. pub fn new(sink: S) -> Self { @@ -33,39 +43,66 @@ impl Multiplexer { } /// Create a handle for a specific multiplexer channel on this multiplexer. - pub fn get_channel_handle(&self, channel: u8) -> MultiplexerHandle + /// + /// Any item sent via this handle's `Sink` implementation will be sent on the given channel. + /// + /// It is valid to have multiple handles for the same channel. + pub fn create_channel_handle(&self, channel: u8) -> MultiplexerHandle where S: Send + 'static, { MultiplexerHandle { sink: self.sink.clone(), - slot: channel, + channel, lock_future: ReusableBoxFuture::new(mk_lock_future(self.sink.clone())), guard: None, } } + + /// Deconstructs the multiplexer into its sink. + /// + /// This function will block until outstanding writes to the underlying sink have completed. Any + /// handle to this multiplexer will be closed afterwards. + pub fn into_inner(self) -> S { + self.sink + .blocking_lock() + .take() + // This function is the only one ever taking out of the `Option` and it consumes the + // only `Multiplexer`, thus we can always expect a `Some` value here. + .expect("did not expect sink to be missing") + } } +/// A guard of a protected sink. type SinkGuard = OwnedMutexGuard>; -trait FuseFuture: Future + FusedFuture + Send {} -impl FuseFuture for T where T: Future + FusedFuture + Send {} - +/// Helper function to create a locking future. +/// +/// It is important to always return a same-sized future when replacing futures using +/// `ReusableBoxFuture`. For this reason, lock futures are only ever created through this helper +/// function. fn mk_lock_future( sink: Arc>>, ) -> impl futures::Future>> { sink.lock_owned() } +/// A handle to a multiplexer. +/// +/// A handle is bound to a specific channel, see [`Multiplexer::create_channel_handle`] for details. pub struct MultiplexerHandle { + /// The sink shared across the multiplexer and all its handles. sink: Arc>>, - slot: u8, - - // TODO NEW IDEA: Maybe we can create the lock future right away, but never poll it? Then use - // the `ReusableBoxFuture` and always create a new one right away? Need to check - // source of `lock`. Write a test for this? - // lock_future: Box> + Send + 'static>, + /// Channel ID assigned to this handle. + channel: u8, + /// The future locking the shared sink. + // Note: To avoid frequent heap allocations, a single box is reused for every lock this handle + // needs to acquire, whcich is on every sending of an item via `Sink`. + // + // This relies on the fact that merely instantiating the locking future (via + // `mk_lock_future`) will not do anything before the first poll (TODO: write test). lock_future: ReusableBoxFuture<'static, SinkGuard>, + /// A potential acquired guard for the underlying sink. guard: Option>, } @@ -73,14 +110,21 @@ impl MultiplexerHandle where S: Send + 'static, { + /// Retrieve the shared sink. + /// + /// # Panics + /// + /// If no guard is held in `self.guard`, panics. fn assume_get_sink(&mut self) -> &mut S { match self.guard { Some(ref mut guard) => { - let mref = guard.as_mut().expect("TODO: guard disappeard"); + let mref = guard + .as_mut() + .expect("TODO: sink disappeard -- could be closed"); mref } None => { - todo!("TODO: assumed sink, but no sink -- this could actually be a removed sink") + todo!("assumption failed") } } } @@ -94,29 +138,36 @@ where type Error = >>::Error; fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - if self.guard.is_none() { - // We do not hold the guard at the moment, so attempt to acquire it. - match self.lock_future.poll_unpin(cx) { - Poll::Ready(guard) => { - // It is our turn: Save the guard and prepare another locking future for later, - // which will not attempt to lock until first polled. - let _ = self.guard.insert(guard); - let sink = self.sink.clone(); - self.lock_future.set(mk_lock_future(sink)); - } - Poll::Pending => { - // The lock could not be acquired yet. - return Poll::Pending; + let guard = match self.guard { + None => { + // We do not hold the guard at the moment, so attempt to acquire it. + match self.lock_future.poll_unpin(cx) { + Poll::Ready(guard) => { + // It is our turn: Save the guard and prepare another locking future for later, + // which will not attempt to lock until first polled. + let guard = self.guard.insert(guard); + let sink = self.sink.clone(); + self.lock_future.set(mk_lock_future(sink)); + guard + } + Poll::Pending => { + // The lock could not be acquired yet. + return Poll::Pending; + } } } - } + Some(ref mut guard) => guard, + }; // At this point we have acquired the lock, now our only job is to stuff data into the sink. - self.assume_get_sink().poll_ready_unpin(cx) + guard + .as_mut() + .expect("TODO: closed sink") + .poll_ready_unpin(cx) } fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - let prefixed = ImmediateFrame::from(self.slot).chain(item); + let prefixed = ImmediateFrame::from(self.channel).chain(item); self.assume_get_sink().start_send_unpin(prefixed) } From 0189e30070352bcd5d51a5c94acea0c5251130eb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Jun 2022 14:28:02 +0200 Subject: [PATCH 063/735] Complete error handling in mux --- src/error.rs | 3 ++ src/mux.rs | 78 +++++++++++++++++++++++++++++----------------------- 2 files changed, 47 insertions(+), 34 deletions(-) diff --git a/src/error.rs b/src/error.rs index 5ec0d4c47f..6b921a3d93 100644 --- a/src/error.rs +++ b/src/error.rs @@ -24,6 +24,9 @@ where AckStreamClosed, #[error("ACK stream error")] AckStreamError, // TODO: Capture actual ack stream error here. + /// The multiplexer was closed, while a handle tried to access it. + #[error("Multiplexer closed")] + MultplexerClosed, /// The wrapped sink returned an error. #[error(transparent)] Sink(#[from] E), diff --git a/src/mux.rs b/src/mux.rs index 5be77d60f9..7d8d77c5fd 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -22,10 +22,22 @@ use futures::{FutureExt, Sink, SinkExt}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; -use crate::ImmediateFrame; +use crate::{error::Error, ImmediateFrame}; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; +/// Helper macro for returning a `Poll::Ready(Err)` eagerly. +/// +/// Can be remove once `Try` is stabilized for `Poll`. +macro_rules! try_ready { + ($ex:expr) => { + match $ex { + Err(e) => return Poll::Ready(Err(e.into())), + Ok(v) => v, + } + }; +} + /// A frame multiplexer. /// /// A multiplexer is not used directly, but used to spawn multiplexing handles. @@ -110,21 +122,25 @@ impl MultiplexerHandle where S: Send + 'static, { - /// Retrieve the shared sink. + /// Retrieve the shared sink, assuming a guard is held. + /// + /// Returns `Err(Error::MultiplexerClosed)` if the sink has been removed. /// /// # Panics /// /// If no guard is held in `self.guard`, panics. - fn assume_get_sink(&mut self) -> &mut S { + fn assume_get_sink(&mut self) -> Result<&mut S, Error<>::Error>> + where + S: Sink, + >::Error: std::error::Error, + { match self.guard { - Some(ref mut guard) => { - let mref = guard - .as_mut() - .expect("TODO: sink disappeard -- could be closed"); - mref - } + Some(ref mut guard) => match guard.as_mut() { + Some(sink) => Ok(sink), + None => Err(Error::MultplexerClosed), + }, None => { - todo!("assumption failed") + panic!("assume_get_sink called without holding a sink. this is a bug") } } } @@ -134,8 +150,9 @@ impl Sink for MultiplexerHandle where S: Sink> + Unpin + Send + 'static, F: Buf, + >>::Error: std::error::Error, { - type Error = >>::Error; + type Error = Error<>>::Error>; fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let guard = match self.guard { @@ -143,12 +160,11 @@ where // We do not hold the guard at the moment, so attempt to acquire it. match self.lock_future.poll_unpin(cx) { Poll::Ready(guard) => { - // It is our turn: Save the guard and prepare another locking future for later, - // which will not attempt to lock until first polled. - let guard = self.guard.insert(guard); + // It is our turn: Save the guard and prepare another locking future for + // later, which will not attempt to lock until first polled. let sink = self.sink.clone(); self.lock_future.set(mk_lock_future(sink)); - guard + self.guard.insert(guard) } Poll::Pending => { // The lock could not be acquired yet. @@ -160,34 +176,28 @@ where }; // At this point we have acquired the lock, now our only job is to stuff data into the sink. - guard - .as_mut() - .expect("TODO: closed sink") + try_ready!(guard.as_mut().ok_or(Error::MultplexerClosed)) .poll_ready_unpin(cx) + .map_err(Error::Sink) } fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let prefixed = ImmediateFrame::from(self.channel).chain(item); - self.assume_get_sink().start_send_unpin(prefixed) + + self.assume_get_sink()? + .start_send_unpin(prefixed) + .map_err(Error::Sink) } fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - // Obtain the flush result, then release the sink lock. - match self.assume_get_sink().poll_flush_unpin(cx) { - Poll::Ready(Ok(())) => { - // Acquire wait list lock to update it. - Poll::Ready(Ok(())) - } - Poll::Ready(Err(_)) => { - todo!("handle error") - } - - Poll::Pending => Poll::Pending, - } + try_ready!(self.assume_get_sink()) + .poll_flush_unpin(cx) + .map_err(Error::Sink) } - fn poll_close(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { - // Simply close? Note invariants, possibly checking them in debug mode. - todo!() + fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + try_ready!(self.assume_get_sink()) + .poll_close_unpin(cx) + .map_err(Error::Sink) } } From 6d02e90a57be1a9015486be8c9aea4b7cf6ebcd8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Jun 2022 14:42:19 +0200 Subject: [PATCH 064/735] Add first test for `mux` module --- src/mux.rs | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/src/mux.rs b/src/mux.rs index 7d8d77c5fd..5a8be3b2e3 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -201,3 +201,31 @@ where .map_err(Error::Sink) } } + +#[cfg(test)] +mod tests { + use bytes::Bytes; + use futures::{FutureExt, SinkExt}; + + use super::{ChannelPrefixedFrame, Multiplexer}; + + // TODO: Test lock future assertions. + + #[test] + fn mux_lifecycle() { + let output: Vec> = Vec::new(); + let muxer = Multiplexer::new(output); + + let mut chan_0 = muxer.create_channel_handle(0); + let mut chan_1 = muxer.create_channel_handle(1); + + assert!(chan_1 + .send(Bytes::from(&b"Hello"[..])) + .now_or_never() + .is_some()); + assert!(chan_0 + .send(Bytes::from(&b"World"[..])) + .now_or_never() + .is_some()); + } +} From 4521093a6f54737e981a014b4cf6ad3840d470a1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Jun 2022 15:24:19 +0200 Subject: [PATCH 065/735] Add missing dropping of the sink guard in mux module --- src/mux.rs | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 5a8be3b2e3..9f29b0f805 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -18,7 +18,7 @@ use std::{ }; use bytes::Buf; -use futures::{FutureExt, Sink, SinkExt}; +use futures::{ready, FutureExt, Sink, SinkExt}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; @@ -115,6 +115,11 @@ pub struct MultiplexerHandle { // `mk_lock_future`) will not do anything before the first poll (TODO: write test). lock_future: ReusableBoxFuture<'static, SinkGuard>, /// A potential acquired guard for the underlying sink. + /// + /// Proper acquisition and dropping of the guard is dependent on callers obeying the sink + /// protocol. A call to `poll_ready` will commence and ultimately complete guard acquisition. + /// + /// A [`Poll::Ready`] return value from either `poll_flush` or `poll_close` will release it. guard: Option>, } @@ -190,15 +195,20 @@ where } fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - try_ready!(self.assume_get_sink()) - .poll_flush_unpin(cx) - .map_err(Error::Sink) + let sink = try_ready!(self.assume_get_sink()); + + let outcome = ready!(sink.poll_flush_unpin(cx)); + self.guard = None; + Poll::Ready(outcome.map_err(Error::Sink)) } fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - try_ready!(self.assume_get_sink()) - .poll_close_unpin(cx) - .map_err(Error::Sink) + let sink = try_ready!(self.assume_get_sink()); + + let outcome = ready!(sink.poll_close_unpin(cx)); + self.guard = None; + + Poll::Ready(outcome.map_err(Error::Sink)) } } From 1f190fc262964baca8e11059655dd84f0317704b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 10:48:31 +0200 Subject: [PATCH 066/735] Add more muxer tests --- src/lib.rs | 11 +++++++++++ src/mux.rs | 27 +++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/src/lib.rs b/src/lib.rs index 4ed87d466b..b68e4125dd 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -87,6 +87,17 @@ pub(crate) mod tests { vec } + /// Collects the contents of multiple `Buf`s into a single flattened `Vec`. + pub fn collect_bufs>(items: I) -> Vec { + let mut vec = Vec::new(); + for buf in items.into_iter() { + buf.reader() + .read_to_end(&mut vec) + .expect("reading buf should never fail"); + } + vec + } + /// Test an "end-to-end" instance of the assembled pipeline for sending. #[test] fn chunked_length_prefixed_sink() { diff --git a/src/mux.rs b/src/mux.rs index 9f29b0f805..43af928328 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -217,6 +217,8 @@ mod tests { use bytes::Bytes; use futures::{FutureExt, SinkExt}; + use crate::{error::Error, tests::collect_bufs}; + use super::{ChannelPrefixedFrame, Multiplexer}; // TODO: Test lock future assertions. @@ -237,5 +239,30 @@ mod tests { .send(Bytes::from(&b"World"[..])) .now_or_never() .is_some()); + + let output = collect_bufs(muxer.into_inner()); + assert_eq!(output, b"\x01Hello\x00World") + } + + #[test] + fn into_inner_invalidates_handles() { + let output: Vec> = Vec::new(); + let muxer = Multiplexer::new(output); + + let mut chan_0 = muxer.create_channel_handle(0); + + assert!(chan_0 + .send(Bytes::from(&b"Sample"[..])) + .now_or_never() + .is_some()); + + muxer.into_inner(); + + let outcome = chan_0 + .send(Bytes::from(&b"Seceond"[..])) + .now_or_never() + .unwrap() + .unwrap_err(); + assert!(matches!(outcome, Error::MultplexerClosed)); } } From 5cdd5e6b629dc6f5559725501ac0dea9ef32d6c1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 9 Jun 2022 14:58:50 +0200 Subject: [PATCH 067/735] Cleanup + add missing comments --- src/chunked.rs | 8 ++++++-- src/frame_reader.rs | 8 ++++++-- src/lib.rs | 4 ++-- 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 0b12470ffa..5b8c0f2870 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -17,10 +17,10 @@ use crate::{error::Error, ImmediateFrame}; pub type SingleChunk = bytes::buf::Chain, Bytes>; /// Indicator that more chunks are following. -pub const MORE_CHUNKS: u8 = 0x00; +const MORE_CHUNKS: u8 = 0x00; /// Final chunk indicator. -pub const FINAL_CHUNK: u8 = 0xFF; +const FINAL_CHUNK: u8 = 0xFF; /// Chunks a frame into ready-to-send chunks. /// @@ -48,6 +48,8 @@ pub fn chunk_frame( })) } +/// Generates the "fragmentizer", i.e: an object that when given the source stream of bytes will yield single chunks. +#[allow(unused)] pub(crate) fn make_fragmentizer(source: S) -> impl Sink> where E: std::error::Error, @@ -59,6 +61,8 @@ where }) } +/// Generates the "defragmentizer", i.e.: an object that when given the source stream of fragments will yield the entire message. +#[allow(unused)] pub(crate) fn make_defragmentizer>(source: S) -> impl Stream { let mut buffer = vec![]; source.filter_map(move |mut fragment| { diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 93259de147..936e617fd9 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -11,6 +11,8 @@ const BUFFER_SIZE: usize = 8; #[cfg(not(test))] const BUFFER_SIZE: usize = 1024; +/// A reader that decodes the incoming stream of the length delimited frames +/// into separate frames. pub(crate) struct FrameReader { stream: R, buffer: BytesMut, @@ -26,6 +28,8 @@ impl FrameReader { } } +// Checks if the specified buffer contains a frame. +// If yes, it is removed from the buffer and returned. fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Error> { let bytes_in_buffer = buffer.remaining(); if bytes_in_buffer < LENGTH_MARKER_SIZE { @@ -112,9 +116,9 @@ mod tests { b"\xffM".to_vec(), ]; - let dechunker = FrameReader::new(stream); + let defragmentizer = FrameReader::new(stream); - let messages: Vec<_> = dechunker.collect().now_or_never().unwrap(); + let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); } } diff --git a/src/lib.rs b/src/lib.rs index fd865f9185..341e1de458 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -75,9 +75,9 @@ pub(crate) mod tests { use tokio_util::sync::PollSender; use crate::{ - chunked::{make_defragmentizer, make_fragmentizer, SingleChunk}, + chunked::{make_defragmentizer, make_fragmentizer}, frame_reader::FrameReader, - length_prefixed::{frame_add_length_prefix, LengthPrefixedFrame}, + length_prefixed::frame_add_length_prefix, }; /// Collects everything inside a `Buf` into a `Vec`. From f8b085df8d2503635f02c150a3fe23cc0ed6d433 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 16:17:19 +0200 Subject: [PATCH 068/735] Add a `TestingSink` --- src/lib.rs | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 94 insertions(+), 2 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index b68e4125dd..a1a616b7e5 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -67,10 +67,16 @@ where #[cfg(test)] pub(crate) mod tests { - use std::io::Read; + use std::{ + convert::Infallible, + io::Read, + pin::Pin, + sync::{Arc, Mutex}, + task::{Context, Poll, Waker}, + }; use bytes::{Buf, Bytes}; - use futures::{future, stream, FutureExt, SinkExt}; + use futures::{future, stream, FutureExt, Sink, SinkExt}; use crate::{ chunked::{chunk_frame, SingleChunk}, @@ -98,6 +104,92 @@ pub(crate) mod tests { vec } + /// A sink for unit testing. + /// + /// All data sent to it will be written to a buffer immediately that can be read during + /// operation. It is guarded by a lock so that only complete writes are visible. + /// + /// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data + /// can flow into the sink. + #[derive(Debug)] + struct TestingSink { + /// The engagement of the plug. + plug: Mutex, + /// Buffer storing all the data. + buffer: Arc>>, + } + + impl TestingSink { + /// Inserts or removes the plug from the sink. + pub fn set_plugged(&self, plugged: bool) { + let mut guard = self.plug.lock().expect("could not lock plug"); + guard.plugged = plugged; + + // Notify any waiting tasks that there may be progress to be made. + if !plugged { + // TODO: Write test that should fail because this line is absent first. + // guard.waker.wake_by_ref() + } + } + + /// Determine whether the sink is plugged. + /// + /// Will update the local waker reference. + fn is_plugged(&self, cx: &mut Context<'_>) -> bool { + let mut guard = self.plug.lock().expect("could not lock plug"); + + // Register waker. + guard.waker = cx.waker().clone(); + guard.plugged + } + } + + /// A plug inserted into the sink. + #[derive(Debug)] + struct Plug { + /// Whether or not the plug is engaged. + plugged: bool, + /// The waker of the last task to access the plug. Will be called when unplugging. + waker: Waker, + } + + impl Sink for &TestingSink { + type Error = Infallible; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + if self.is_plugged(cx) { + Poll::Pending + } else { + Poll::Ready(Ok(())) + } + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + let mut guard = self.buffer.lock().expect("could not lock buffer"); + + item.reader() + .read_to_end(&mut guard) + .expect("writing to vec should never fail"); + + Ok(()) + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + // We're always done flushing, since we write the entire item when sending. Still, we + // use this as an opportunity to plug if necessary. + if self.is_plugged(cx) { + Poll::Pending + } else { + Poll::Ready(Ok(())) + } + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + // Nothing to close, so this is essentially the same as flushing. + Sink::::poll_flush(self, cx) + } + } + /// Test an "end-to-end" instance of the assembled pipeline for sending. #[test] fn chunked_length_prefixed_sink() { From 12f4aac02f2c0bfbd1b3221684cc4c961f10ee37 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 9 Jun 2022 16:36:31 +0200 Subject: [PATCH 069/735] Apply review comments --- src/chunked.rs | 9 ++++++--- src/error.rs | 3 --- src/frame_reader.rs | 7 ++++--- src/lib.rs | 3 ++- 4 files changed, 12 insertions(+), 10 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 5b8c0f2870..bc1c33d7b3 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -50,13 +50,16 @@ pub fn chunk_frame( /// Generates the "fragmentizer", i.e: an object that when given the source stream of bytes will yield single chunks. #[allow(unused)] -pub(crate) fn make_fragmentizer(source: S) -> impl Sink> +pub(crate) fn make_fragmentizer( + source: S, + fragment_size: NonZeroUsize, +) -> impl Sink> where E: std::error::Error, S: Sink>, { - source.with_flat_map(|frame: Bytes| { - let chunk_iter = chunk_frame(frame, 5.try_into().unwrap()).expect("TODO: Handle error"); + source.with_flat_map(move |frame: Bytes| { + let chunk_iter = chunk_frame(frame, fragment_size).expect("TODO: Handle error"); stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) }) } diff --git a/src/error.rs b/src/error.rs index 5e9c9a3414..5ec0d4c47f 100644 --- a/src/error.rs +++ b/src/error.rs @@ -27,7 +27,4 @@ where /// The wrapped sink returned an error. #[error(transparent)] Sink(#[from] E), - /// Can not construct proper `u16` from bytes representing frame length. - #[error("Incorrect frame length")] - IncorrectFrameLength, } diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 936e617fd9..a5ceb6e4b4 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -5,6 +5,7 @@ use futures::{AsyncRead, Stream}; use crate::error::Error; +/// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); #[cfg(test)] const BUFFER_SIZE: usize = 8; @@ -28,7 +29,7 @@ impl FrameReader { } } -// Checks if the specified buffer contains a frame. +// Checks if the specified buffer contains a length delimited frame. // If yes, it is removed from the buffer and returned. fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Error> { let bytes_in_buffer = buffer.remaining(); @@ -38,7 +39,7 @@ fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Err let data_length = u16::from_le_bytes( buffer[0..LENGTH_MARKER_SIZE] .try_into() - .map_err(|_| Error::IncorrectFrameLength)?, + .expect("any two bytes should be parseable to u16"), ) as usize; let end = LENGTH_MARKER_SIZE + data_length; @@ -75,7 +76,7 @@ where Ok(None) => { let start = buffer.len(); let end = start + BUFFER_SIZE; - buffer.resize(end, 0xBA); + buffer.resize(end, 0x00); match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { Poll::Ready(Ok(bytes_read)) => { diff --git a/src/lib.rs b/src/lib.rs index 341e1de458..1366984745 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -68,7 +68,7 @@ where #[cfg(test)] pub(crate) mod tests { - use std::io::Read; + use std::{io::Read, num::NonZeroUsize}; use bytes::{Buf, Bytes}; use futures::{future, FutureExt, SinkExt, StreamExt}; @@ -97,6 +97,7 @@ pub(crate) mod tests { let mut chunked_sink = make_fragmentizer( poll_sender.with(|frame| future::ready(frame_add_length_prefix(frame))), + NonZeroUsize::new(5).unwrap(), ); let sample_data = Bytes::from(&b"QRSTUV"[..]); From 19c0524a039fb2a68281856987ef1e2396face8d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 9 Jun 2022 16:55:46 +0200 Subject: [PATCH 070/735] Add UTs for `length_delimited_frame` --- src/frame_reader.rs | 74 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index a5ceb6e4b4..40b7444105 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -103,10 +103,13 @@ where #[cfg(test)] mod tests { + use bytes::{Buf, BufMut, BytesMut}; use futures::{FutureExt, StreamExt}; use crate::frame_reader::FrameReader; + use super::length_delimited_frame; + #[test] fn produces_fragments_from_stream() { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; @@ -122,4 +125,75 @@ mod tests { let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); } + + #[test] + fn extracts_length_delimited_frame() { + let mut stream = BytesMut::from(&b"\x05\x00ABCDE\x05\x00FGHIJ\x02\x00KL\x01\x00M"[..]); + let frame = length_delimited_frame(&mut stream).unwrap().unwrap(); + + assert_eq!(frame, "ABCDE"); + assert_eq!(stream, b"\x05\x00FGHIJ\x02\x00KL\x01\x00M"[..]); + } + + #[test] + fn extracts_length_delimited_frame_single_frame() { + let mut stream = BytesMut::from(&b"\x01\x00X"[..]); + let frame = length_delimited_frame(&mut stream).unwrap().unwrap(); + + assert_eq!(frame, "X"); + assert!(stream.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_empty_buffer() { + let mut stream = BytesMut::from(&b""[..]); + let frame = length_delimited_frame(&mut stream).unwrap(); + + assert!(frame.is_none()); + assert!(stream.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_incomplete_length_in_buffer() { + let mut stream = BytesMut::from(&b"A"[..]); + let frame = length_delimited_frame(&mut stream).unwrap(); + + assert!(frame.is_none()); + assert_eq!(stream, b"A"[..]); + } + + #[test] + fn extracts_length_delimited_frame_incomplete_data_in_buffer() { + let mut stream = BytesMut::from(&b"\xff\xffABCD"[..]); + let frame = length_delimited_frame(&mut stream).unwrap(); + + assert!(frame.is_none()); + assert_eq!(stream, b"\xff\xffABCD"[..]); + } + + #[test] + fn extracts_length_delimited_frame_only_length_in_buffer() { + let mut stream = BytesMut::from(&b"\xff\xff"[..]); + let frame = length_delimited_frame(&mut stream).unwrap(); + + assert!(frame.is_none()); + assert_eq!(stream, b"\xff\xff"[..]); + } + + #[test] + fn extracts_length_delimited_frame_max_size() { + let mut stream = BytesMut::from(&b"\xff\xff"[..]); + for _ in 0..u16::MAX { + stream.put_u8(50); + } + let mut frame = length_delimited_frame(&mut stream).unwrap().unwrap(); + + assert_eq!(frame.remaining(), u16::MAX as usize); + for _ in 0..u16::MAX { + let byte = frame.get_u8(); + assert_eq!(byte, 50); + } + + assert!(stream.is_empty()); + } } From 0d5c752f02843af3bbc943b782b912e6e5ed5ecb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 9 Jun 2022 16:59:08 +0200 Subject: [PATCH 071/735] Correctly indicate that stream has ended --- src/frame_reader.rs | 5 ----- 1 file changed, 5 deletions(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 40b7444105..a2d6b554d1 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -81,11 +81,6 @@ where match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { Poll::Ready(Ok(bytes_read)) => { buffer.truncate(start + bytes_read); - - // For testing purposes assume that when the stream is empty - // we finish processing. In production, we'll keep waiting - // for more data to arrive. - #[cfg(test)] if bytes_read == 0 { return Poll::Ready(None); } From 9827efe357c32fc7ebb46227bddececfce7fe3e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 9 Jun 2022 17:29:06 +0200 Subject: [PATCH 072/735] Add ability to inject the amount of bytes to be polled instead of hardcoding it --- src/frame_reader.rs | 20 ++++++++++++-------- src/lib.rs | 9 +++++++-- 2 files changed, 19 insertions(+), 10 deletions(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index a2d6b554d1..c12e14bde1 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -7,24 +7,23 @@ use crate::error::Error; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); -#[cfg(test)] -const BUFFER_SIZE: usize = 8; -#[cfg(not(test))] -const BUFFER_SIZE: usize = 1024; /// A reader that decodes the incoming stream of the length delimited frames /// into separate frames. pub(crate) struct FrameReader { stream: R, buffer: BytesMut, + // How many bytes to poll at once from the stream. + bytes_to_poll: u16, } impl FrameReader { #[cfg(test)] - pub(crate) fn new(stream: R) -> Self { + pub(crate) fn new(stream: R, bytes_to_poll: u16) -> Self { Self { stream, buffer: BytesMut::new(), + bytes_to_poll, } } } @@ -61,7 +60,6 @@ where // TODO: Ultimately, this should become Result. type Item = Bytes; - // TODO: Add UTs for all paths fn poll_next( self: Pin<&mut Self>, cx: &mut std::task::Context<'_>, @@ -69,13 +67,14 @@ where let FrameReader { ref mut stream, ref mut buffer, + bytes_to_poll, } = self.get_mut(); loop { match length_delimited_frame(buffer) { Ok(Some(frame)) => return Poll::Ready(Some(frame.freeze())), Ok(None) => { let start = buffer.len(); - let end = start + BUFFER_SIZE; + let end = start + *bytes_to_poll as usize; buffer.resize(end, 0x00); match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { @@ -105,6 +104,11 @@ mod tests { use super::length_delimited_frame; + // In tests use small value so that we make sure that + // we correctly merge data that was polled from + // the stream in small chunks. + const BYTES_TO_POLL: u16 = 4; + #[test] fn produces_fragments_from_stream() { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; @@ -115,7 +119,7 @@ mod tests { b"\xffM".to_vec(), ]; - let defragmentizer = FrameReader::new(stream); + let defragmentizer = FrameReader::new(stream, BYTES_TO_POLL); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); diff --git a/src/lib.rs b/src/lib.rs index 1366984745..0900012b67 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -80,6 +80,11 @@ pub(crate) mod tests { length_prefixed::frame_add_length_prefix, }; + // In tests use small value so that we make sure that + // we correctly merge data that was polled from + // the stream in small chunks. + const BYTES_TO_POLL: u16 = 4; + /// Collects everything inside a `Buf` into a `Vec`. pub fn collect_buf(buf: B) -> Vec { let mut vec = Vec::new(); @@ -125,7 +130,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let defragmentizer = make_defragmentizer(FrameReader::new(stream)); + let defragmentizer = make_defragmentizer(FrameReader::new(stream, BYTES_TO_POLL)); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!( @@ -139,7 +144,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; - let defragmentizer = make_defragmentizer(FrameReader::new(stream)); + let defragmentizer = make_defragmentizer(FrameReader::new(stream, BYTES_TO_POLL)); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); From ed41d0603c9558b4edf20442e3eda67ac055e593 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 9 Jun 2022 17:33:29 +0200 Subject: [PATCH 073/735] Rename `bytes_to_poll` -> `buffer_increment` --- src/frame_reader.rs | 16 ++++++++-------- src/lib.rs | 6 +++--- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index c12e14bde1..8bd0a8cf2d 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -13,17 +13,17 @@ const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); pub(crate) struct FrameReader { stream: R, buffer: BytesMut, - // How many bytes to poll at once from the stream. - bytes_to_poll: u16, + // How much to grow the buffer when reading from the stream. + buffer_increment: u16, } impl FrameReader { #[cfg(test)] - pub(crate) fn new(stream: R, bytes_to_poll: u16) -> Self { + pub(crate) fn new(stream: R, buffer_increment: u16) -> Self { Self { stream, buffer: BytesMut::new(), - bytes_to_poll, + buffer_increment, } } } @@ -67,14 +67,14 @@ where let FrameReader { ref mut stream, ref mut buffer, - bytes_to_poll, + buffer_increment, } = self.get_mut(); loop { match length_delimited_frame(buffer) { Ok(Some(frame)) => return Poll::Ready(Some(frame.freeze())), Ok(None) => { let start = buffer.len(); - let end = start + *bytes_to_poll as usize; + let end = start + *buffer_increment as usize; buffer.resize(end, 0x00); match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { @@ -107,7 +107,7 @@ mod tests { // In tests use small value so that we make sure that // we correctly merge data that was polled from // the stream in small chunks. - const BYTES_TO_POLL: u16 = 4; + const BUFFER_INCREMENT: u16 = 4; #[test] fn produces_fragments_from_stream() { @@ -119,7 +119,7 @@ mod tests { b"\xffM".to_vec(), ]; - let defragmentizer = FrameReader::new(stream, BYTES_TO_POLL); + let defragmentizer = FrameReader::new(stream, BUFFER_INCREMENT); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); diff --git a/src/lib.rs b/src/lib.rs index 0900012b67..6ee3f08e69 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -83,7 +83,7 @@ pub(crate) mod tests { // In tests use small value so that we make sure that // we correctly merge data that was polled from // the stream in small chunks. - const BYTES_TO_POLL: u16 = 4; + const BUFFER_INCREMENT: u16 = 4; /// Collects everything inside a `Buf` into a `Vec`. pub fn collect_buf(buf: B) -> Vec { @@ -130,7 +130,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let defragmentizer = make_defragmentizer(FrameReader::new(stream, BYTES_TO_POLL)); + let defragmentizer = make_defragmentizer(FrameReader::new(stream, BUFFER_INCREMENT)); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!( @@ -144,7 +144,7 @@ pub(crate) mod tests { let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; - let defragmentizer = make_defragmentizer(FrameReader::new(stream, BYTES_TO_POLL)); + let defragmentizer = make_defragmentizer(FrameReader::new(stream, BUFFER_INCREMENT)); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); From e71db6587d1512214d1ed57d8b300a46d43d94ae Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 18:45:51 +0200 Subject: [PATCH 074/735] Add tests for `TestingSink` --- src/lib.rs | 140 ++++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 118 insertions(+), 22 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index a1a616b7e5..e7866afb41 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -111,7 +111,7 @@ pub(crate) mod tests { /// /// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data /// can flow into the sink. - #[derive(Debug)] + #[derive(Default, Debug)] struct TestingSink { /// The engagement of the plug. plug: Mutex, @@ -120,6 +120,13 @@ pub(crate) mod tests { } impl TestingSink { + /// Creates a new testing sink. + /// + /// The sink will initially be unplugged. + pub fn new() -> Self { + TestingSink::default() + } + /// Inserts or removes the plug from the sink. pub fn set_plugged(&self, plugged: bool) { let mut guard = self.plug.lock().expect("could not lock plug"); @@ -127,36 +134,35 @@ pub(crate) mod tests { // Notify any waiting tasks that there may be progress to be made. if !plugged { - // TODO: Write test that should fail because this line is absent first. - // guard.waker.wake_by_ref() + if let Some(ref waker) = guard.waker { + waker.wake_by_ref() + } } } /// Determine whether the sink is plugged. /// /// Will update the local waker reference. - fn is_plugged(&self, cx: &mut Context<'_>) -> bool { + pub fn is_plugged(&self, cx: &mut Context<'_>) -> bool { let mut guard = self.plug.lock().expect("could not lock plug"); // Register waker. - guard.waker = cx.waker().clone(); + guard.waker = Some(cx.waker().clone()); guard.plugged } - } - /// A plug inserted into the sink. - #[derive(Debug)] - struct Plug { - /// Whether or not the plug is engaged. - plugged: bool, - /// The waker of the last task to access the plug. Will be called when unplugging. - waker: Waker, - } - - impl Sink for &TestingSink { - type Error = Infallible; + /// Returns a copy of the contents. + pub fn get_contents(&self) -> Vec { + Vec::clone( + &self + .buffer + .lock() + .expect("could not lock test sink for copying"), + ) + } - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + /// Helper function for sink implementations, calling `poll_ready`. + fn sink_poll_ready(&self, cx: &mut Context<'_>) -> Poll> { if self.is_plugged(cx) { Poll::Pending } else { @@ -164,7 +170,8 @@ pub(crate) mod tests { } } - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + /// Helper function for sink implementations, calling `start_end`. + fn sink_start_send(&self, item: F) -> Result<(), Infallible> { let mut guard = self.buffer.lock().expect("could not lock buffer"); item.reader() @@ -174,7 +181,7 @@ pub(crate) mod tests { Ok(()) } - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { // We're always done flushing, since we write the entire item when sending. Still, we // use this as an opportunity to plug if necessary. if self.is_plugged(cx) { @@ -184,10 +191,99 @@ pub(crate) mod tests { } } - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + fn sink_poll_close(&self, cx: &mut Context<'_>) -> Poll> { // Nothing to close, so this is essentially the same as flushing. - Sink::::poll_flush(self, cx) + self.sink_poll_flush(cx) + } + } + + /// A plug inserted into the sink. + #[derive(Debug, Default)] + struct Plug { + /// Whether or not the plug is engaged. + plugged: bool, + /// The waker of the last task to access the plug. Will be called when unplugging. + waker: Option, + } + + impl Sink for TestingSink { + type Error = Infallible; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.sink_poll_ready(cx) + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + self.sink_start_send(item) } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.sink_poll_flush(cx) + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.sink_poll_close(cx) + } + } + + impl Sink for &TestingSink { + type Error = Infallible; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.sink_poll_ready(cx) + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + self.sink_start_send(item) + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.sink_poll_flush(cx) + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.sink_poll_close(cx) + } + } + + #[test] + fn plug_blocks_sink() { + let sink = TestingSink::new(); + let mut sink_handle = &sink; + + sink.set_plugged(true); + + // The sink is plugged, so sending should fail. We also drop the future, causing the value + // to be discarded. + assert!(sink_handle.send(&b"dummy"[..]).now_or_never().is_none()); + assert!(sink.get_contents().is_empty()); + + // Now stuff more data into the sink. + let second_send = sink_handle.send(&b"second"[..]); + sink.set_plugged(false); + assert!(second_send.now_or_never().is_some()); + assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); + assert_eq!(sink.get_contents(), b"secondthird"); + } + + #[tokio::test] + async fn ensure_sink_wakes_up_after_plugging_in() { + let sink = Arc::new(TestingSink::new()); + + sink.set_plugged(true); + + let sink_alt = sink.clone(); + + let join_handle = tokio::spawn(async move { + sink_alt.as_ref().send(&b"sample"[..]).await.unwrap(); + }); + + tokio::task::yield_now().await; + sink.set_plugged(false); + + // This will block forever if the other task is not woken up. To verify, comment out the + // `Waker::wake_by_ref` call in the sink implementation. + join_handle.await.unwrap(); } /// Test an "end-to-end" instance of the assembled pipeline for sending. From 5b610281072be4665460ff2a385c7442fe0e9817 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 18:50:24 +0200 Subject: [PATCH 075/735] Make `TestingSink` public --- src/lib.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lib.rs b/src/lib.rs index e7866afb41..fab811d3fb 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -112,7 +112,7 @@ pub(crate) mod tests { /// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data /// can flow into the sink. #[derive(Default, Debug)] - struct TestingSink { + pub struct TestingSink { /// The engagement of the plug. plug: Mutex, /// Buffer storing all the data. From aa12d5f97d92eb627cfd4509d78b2761dd6553ec Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 18:54:44 +0200 Subject: [PATCH 076/735] Re-simplify implementation of sink --- src/lib.rs | 73 +++++++++++++----------------------------------------- 1 file changed, 17 insertions(+), 56 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index fab811d3fb..b16300010e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -160,9 +160,21 @@ pub(crate) mod tests { .expect("could not lock test sink for copying"), ) } + } + + /// A plug inserted into the sink. + #[derive(Debug, Default)] + struct Plug { + /// Whether or not the plug is engaged. + plugged: bool, + /// The waker of the last task to access the plug. Will be called when unplugging. + waker: Option, + } - /// Helper function for sink implementations, calling `poll_ready`. - fn sink_poll_ready(&self, cx: &mut Context<'_>) -> Poll> { + impl Sink for &TestingSink { + type Error = Infallible; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { if self.is_plugged(cx) { Poll::Pending } else { @@ -170,8 +182,7 @@ pub(crate) mod tests { } } - /// Helper function for sink implementations, calling `start_end`. - fn sink_start_send(&self, item: F) -> Result<(), Infallible> { + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let mut guard = self.buffer.lock().expect("could not lock buffer"); item.reader() @@ -181,7 +192,7 @@ pub(crate) mod tests { Ok(()) } - fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { // We're always done flushing, since we write the entire item when sending. Still, we // use this as an opportunity to plug if necessary. if self.is_plugged(cx) { @@ -191,58 +202,8 @@ pub(crate) mod tests { } } - fn sink_poll_close(&self, cx: &mut Context<'_>) -> Poll> { - // Nothing to close, so this is essentially the same as flushing. - self.sink_poll_flush(cx) - } - } - - /// A plug inserted into the sink. - #[derive(Debug, Default)] - struct Plug { - /// Whether or not the plug is engaged. - plugged: bool, - /// The waker of the last task to access the plug. Will be called when unplugging. - waker: Option, - } - - impl Sink for TestingSink { - type Error = Infallible; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.sink_poll_ready(cx) - } - - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - self.sink_start_send(item) - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.sink_poll_flush(cx) - } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.sink_poll_close(cx) - } - } - - impl Sink for &TestingSink { - type Error = Infallible; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.sink_poll_ready(cx) - } - - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - self.sink_start_send(item) - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.sink_poll_flush(cx) - } - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.sink_poll_close(cx) + Sink::::poll_flush(self, cx) } } From 6da83b806fbdf155e40ad5aaa5289493ca1ce777 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 19:56:21 +0200 Subject: [PATCH 077/735] Add test for assumed property of `lock_owned` that the mutexer relies upon --- src/mux.rs | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 43af928328..5e9380d71b 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -112,7 +112,8 @@ pub struct MultiplexerHandle { // needs to acquire, whcich is on every sending of an item via `Sink`. // // This relies on the fact that merely instantiating the locking future (via - // `mk_lock_future`) will not do anything before the first poll (TODO: write test). + // `mk_lock_future`) will not do anything before the first poll (see + // `tests::ensure_creating_lock_acquisition_future_is_side_effect_free`). lock_future: ReusableBoxFuture<'static, SinkGuard>, /// A potential acquired guard for the underlying sink. /// @@ -214,14 +215,32 @@ where #[cfg(test)] mod tests { + use std::sync::Arc; + use bytes::Bytes; use futures::{FutureExt, SinkExt}; + use tokio::sync::Mutex; use crate::{error::Error, tests::collect_bufs}; use super::{ChannelPrefixedFrame, Multiplexer}; - // TODO: Test lock future assertions. + #[test] + fn ensure_creating_lock_acquisition_future_is_side_effect_free() { + // This test ensures an assumed property in the multiplexer's sink implementation, namely + // that calling the `.lock_owned()` function does not affect the lock before being polled. + + let mutex: Arc> = Arc::new(Mutex::new(())); + + // Instantiate a locking future without polling it. + let lock_fut = mutex.clone().lock_owned(); + + // Creates a second locking future, which we will poll immediately. It should return ready. + assert!(mutex.lock_owned().now_or_never().is_some()); + + // To prove that the first one also worked, poll it as well. + assert!(lock_fut.now_or_never().is_some()); + } #[test] fn mux_lifecycle() { From 9e66339864f195969fc310e7bf0ee6bbd309765a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 20:13:09 +0200 Subject: [PATCH 078/735] Revert "Re-simplify implementation of sink" and expand functionality This reverts commit aa12d5f97d92eb627cfd4509d78b2761dd6553ec and adds `TestingSinkRef`. --- src/lib.rs | 93 ++++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 76 insertions(+), 17 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index b16300010e..21b880069a 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -70,6 +70,7 @@ pub(crate) mod tests { use std::{ convert::Infallible, io::Read, + ops::Deref, pin::Pin, sync::{Arc, Mutex}, task::{Context, Poll, Waker}, @@ -160,21 +161,17 @@ pub(crate) mod tests { .expect("could not lock test sink for copying"), ) } - } - - /// A plug inserted into the sink. - #[derive(Debug, Default)] - struct Plug { - /// Whether or not the plug is engaged. - plugged: bool, - /// The waker of the last task to access the plug. Will be called when unplugging. - waker: Option, - } - impl Sink for &TestingSink { - type Error = Infallible; + /// Creates a new reference to the testing sink that also implements `Sink`. + /// + /// Internally, the reference has a static lifetime through `Arc` and can thus be passed + /// on independently. + pub fn into_ref(self: Arc) -> TestingSinkRef { + TestingSinkRef(self.clone()) + } - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + /// Helper function for sink implementations, calling `poll_ready`. + fn sink_poll_ready(&self, cx: &mut Context<'_>) -> Poll> { if self.is_plugged(cx) { Poll::Pending } else { @@ -182,7 +179,8 @@ pub(crate) mod tests { } } - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + /// Helper function for sink implementations, calling `start_end`. + fn sink_start_send(&self, item: F) -> Result<(), Infallible> { let mut guard = self.buffer.lock().expect("could not lock buffer"); item.reader() @@ -192,7 +190,8 @@ pub(crate) mod tests { Ok(()) } - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + /// Helper function for sink implementations, calling `sink_poll_flush`. + fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { // We're always done flushing, since we write the entire item when sending. Still, we // use this as an opportunity to plug if necessary. if self.is_plugged(cx) { @@ -202,11 +201,71 @@ pub(crate) mod tests { } } - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - Sink::::poll_flush(self, cx) + /// Helper function for sink implementations, calling `sink_poll_close`. + fn sink_poll_close(&self, cx: &mut Context<'_>) -> Poll> { + // Nothing to close, so this is essentially the same as flushing. + self.sink_poll_flush(cx) + } + } + + /// A plug inserted into the sink. + #[derive(Debug, Default)] + struct Plug { + /// Whether or not the plug is engaged. + plugged: bool, + /// The waker of the last task to access the plug. Will be called when unplugging. + waker: Option, + } + + macro_rules! sink_impl_fwd { + ($ty:ty) => { + impl Sink for $ty { + type Error = Infallible; + + fn poll_ready( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.sink_poll_ready(cx) + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + self.sink_start_send(item) + } + + fn poll_flush( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.sink_poll_flush(cx) + } + + fn poll_close( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.sink_poll_close(cx) + } + } + }; + } + + /// A reference to a testing sink that implements `Sink`. + #[derive(Debug)] + pub struct TestingSinkRef(Arc); + + impl Deref for TestingSinkRef { + type Target = TestingSink; + + fn deref(&self) -> &Self::Target { + &self.0 } } + sink_impl_fwd!(TestingSink); + sink_impl_fwd!(&TestingSink); + sink_impl_fwd!(TestingSinkRef); + #[test] fn plug_blocks_sink() { let sink = TestingSink::new(); From b47ec98dd7160974567586befd3a3a52701fccda Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Jun 2022 20:26:53 +0200 Subject: [PATCH 079/735] Add clogging support for `TestingSink` --- src/lib.rs | 71 ++++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 58 insertions(+), 13 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 21b880069a..6af7e6c89e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -111,11 +111,14 @@ pub(crate) mod tests { /// operation. It is guarded by a lock so that only complete writes are visible. /// /// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data - /// can flow into the sink. + /// can flow into the sink. In a similar manner, the sink can be clogged - while it is possible + /// to start sending new data, it will not report being done until the clog is cleared. #[derive(Default, Debug)] pub struct TestingSink { - /// The engagement of the plug. - plug: Mutex, + /// The state of the plug. + plug: Mutex, + /// Whether or not the sink is clogged. + clog: Mutex, /// Buffer storing all the data. buffer: Arc>>, } @@ -131,7 +134,7 @@ pub(crate) mod tests { /// Inserts or removes the plug from the sink. pub fn set_plugged(&self, plugged: bool) { let mut guard = self.plug.lock().expect("could not lock plug"); - guard.plugged = plugged; + guard.engaged = plugged; // Notify any waiting tasks that there may be progress to be made. if !plugged { @@ -141,6 +144,19 @@ pub(crate) mod tests { } } + /// Inserts or removes the clog from the sink. + pub fn set_clogged(&self, clogged: bool) { + let mut guard = self.clog.lock().expect("could not lock plug"); + guard.engaged = clogged; + + // Notify any waiting tasks that there may be progress to be made. + if !clogged { + if let Some(ref waker) = guard.waker { + waker.wake_by_ref() + } + } + } + /// Determine whether the sink is plugged. /// /// Will update the local waker reference. @@ -149,7 +165,18 @@ pub(crate) mod tests { // Register waker. guard.waker = Some(cx.waker().clone()); - guard.plugged + guard.engaged + } + + /// Determine whether the sink is clogged. + /// + /// Will update the local waker reference. + pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { + let mut guard = self.clog.lock().expect("could not lock plug"); + + // Register waker. + guard.waker = Some(cx.waker().clone()); + guard.engaged } /// Returns a copy of the contents. @@ -192,9 +219,8 @@ pub(crate) mod tests { /// Helper function for sink implementations, calling `sink_poll_flush`. fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { - // We're always done flushing, since we write the entire item when sending. Still, we - // use this as an opportunity to plug if necessary. - if self.is_plugged(cx) { + // We're always done storing the data, but we pretend we need to do more if clogged. + if self.is_clogged(cx) { Poll::Pending } else { Poll::Ready(Ok(())) @@ -208,12 +234,12 @@ pub(crate) mod tests { } } - /// A plug inserted into the sink. + /// A plug/clog inserted into the sink. #[derive(Debug, Default)] - struct Plug { - /// Whether or not the plug is engaged. - plugged: bool, - /// The waker of the last task to access the plug. Will be called when unplugging. + struct BlockingParticle { + /// Whether or not the blocking particle is engaged. + engaged: bool, + /// The waker of the last task to access the plug. Will be called when removing. waker: Option, } @@ -286,6 +312,25 @@ pub(crate) mod tests { assert_eq!(sink.get_contents(), b"secondthird"); } + #[test] + fn clog_blocks_sink_completion() { + let sink = TestingSink::new(); + let mut sink_handle = &sink; + + sink.set_clogged(true); + + // The sink is clogged, so sending should fail to complete, but it is written. + assert!(sink_handle.send(&b"first"[..]).now_or_never().is_none()); + assert_eq!(sink.get_contents(), b"first"); + + // Now stuff more data into the sink. + let second_send = sink_handle.send(&b"second"[..]); + sink.set_clogged(false); + assert!(second_send.now_or_never().is_some()); + assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); + assert_eq!(sink.get_contents(), b"firstsecondthird"); + } + #[tokio::test] async fn ensure_sink_wakes_up_after_plugging_in() { let sink = Arc::new(TestingSink::new()); From 26b13cc41412989e018844c3ae4873af654d3a7f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 10 Jun 2022 11:08:20 +0200 Subject: [PATCH 080/735] Add module level comments --- src/frame_reader.rs | 7 +++++-- src/lib.rs | 2 ++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 8bd0a8cf2d..9de3c668c8 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -1,3 +1,8 @@ +//! Frame reader +//! +//! A reader that decodes the incoming stream of the length delimited frames into separate frames. +//! Each frame is expected to be prefixed with two bytes representing its length. + use std::{pin::Pin, task::Poll}; use bytes::{Buf, Bytes, BytesMut}; @@ -8,8 +13,6 @@ use crate::error::Error; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); -/// A reader that decodes the incoming stream of the length delimited frames -/// into separate frames. pub(crate) struct FrameReader { stream: R, buffer: BytesMut, diff --git a/src/lib.rs b/src/lib.rs index 6ee3f08e69..b3cdb9db5f 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,3 +1,5 @@ +//! Asynchronous multiplexing + pub mod backpressured; pub mod chunked; pub mod error; From 18eecb8b185ab017ee7708f2334dd01cb4a8691a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 11:15:31 +0200 Subject: [PATCH 081/735] Switch to model where clog and plug are guarded by the same mutex --- src/lib.rs | 30 ++++++++++++++---------------- src/mux.rs | 5 ++++- 2 files changed, 18 insertions(+), 17 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 6af7e6c89e..c8750bafa8 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -116,9 +116,7 @@ pub(crate) mod tests { #[derive(Default, Debug)] pub struct TestingSink { /// The state of the plug. - plug: Mutex, - /// Whether or not the sink is clogged. - clog: Mutex, + obstruction: Mutex, /// Buffer storing all the data. buffer: Arc>>, } @@ -133,8 +131,8 @@ pub(crate) mod tests { /// Inserts or removes the plug from the sink. pub fn set_plugged(&self, plugged: bool) { - let mut guard = self.plug.lock().expect("could not lock plug"); - guard.engaged = plugged; + let mut guard = self.obstruction.lock().expect("could not lock plug"); + guard.plugged = plugged; // Notify any waiting tasks that there may be progress to be made. if !plugged { @@ -146,8 +144,8 @@ pub(crate) mod tests { /// Inserts or removes the clog from the sink. pub fn set_clogged(&self, clogged: bool) { - let mut guard = self.clog.lock().expect("could not lock plug"); - guard.engaged = clogged; + let mut guard = self.obstruction.lock().expect("could not lock plug"); + guard.clogged = clogged; // Notify any waiting tasks that there may be progress to be made. if !clogged { @@ -161,22 +159,20 @@ pub(crate) mod tests { /// /// Will update the local waker reference. pub fn is_plugged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.plug.lock().expect("could not lock plug"); + let mut guard = self.obstruction.lock().expect("could not lock plug"); - // Register waker. guard.waker = Some(cx.waker().clone()); - guard.engaged + guard.plugged } /// Determine whether the sink is clogged. /// /// Will update the local waker reference. pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.clog.lock().expect("could not lock plug"); + let mut guard = self.obstruction.lock().expect("could not lock plug"); - // Register waker. guard.waker = Some(cx.waker().clone()); - guard.engaged + guard.clogged } /// Returns a copy of the contents. @@ -236,9 +232,11 @@ pub(crate) mod tests { /// A plug/clog inserted into the sink. #[derive(Debug, Default)] - struct BlockingParticle { - /// Whether or not the blocking particle is engaged. - engaged: bool, + struct SinkObstruction { + /// Whether or not the sink is plugged. + plugged: bool, + /// Whether or not the sink is clogged. + clogged: bool, /// The waker of the last task to access the plug. Will be called when removing. waker: Option, } diff --git a/src/mux.rs b/src/mux.rs index 5e9380d71b..e8ca2d91af 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -221,7 +221,10 @@ mod tests { use futures::{FutureExt, SinkExt}; use tokio::sync::Mutex; - use crate::{error::Error, tests::collect_bufs}; + use crate::{ + error::Error, + tests::{collect_bufs, TestingSink}, + }; use super::{ChannelPrefixedFrame, Multiplexer}; From 20fe17df58ec9d3a95749b6999141e5c4b898846 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 11:16:41 +0200 Subject: [PATCH 082/735] Add two yet vague tests for multiplexer --- src/mux.rs | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/src/mux.rs b/src/mux.rs index e8ca2d91af..16bca58148 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -287,4 +287,75 @@ mod tests { .unwrap_err(); assert!(matches!(outcome, Error::MultplexerClosed)); } + + #[test] + fn cancelled_send_does_not_deadlock_multiplexer() { + let sink = Arc::new(TestingSink::new()); + let muxer = Multiplexer::new(sink.clone().into_ref()); + + sink.set_clogged(true); + let mut chan_0 = muxer.create_channel_handle(0); + + assert!(chan_0 + .send(Bytes::from(&b"zero"[..])) + .now_or_never() + .is_none()); + + // At this point, we have cancelled a send that was in progress due to the sink not having + // finished. The sink will finish eventually, but has not been polled to completion. + } + + #[tokio::test] + async fn concurrent_sending() { + let sink = Arc::new(TestingSink::new()); + let muxer = Multiplexer::new(sink.clone().into_ref()); + + // Clog the sink for now. + sink.set_clogged(true); + + let mut chan_0 = muxer.create_channel_handle(0); + let mut chan_1 = muxer.create_channel_handle(1); + let mut chan_2 = muxer.create_channel_handle(2); + + // Channel zero has a long send going on. + assert!(chan_0 + .send(Bytes::from(&b"zero"[..])) + .now_or_never() + .is_none()); + + // The data has already arrived (it's a clog, not a plug): + assert_eq!(sink.get_contents(), b"\x00zero"); + + println!("zero sent"); + // The other two channels are sending in order. + let send_1 = tokio::spawn(async move { + println!("begin chan_1 sending"); + chan_1.send(Bytes::from(&b"one"[..])).await.unwrap(); + println!("done chan_1 sending"); + }); + println!("send_1 spawned"); + + // Yield, ensuring that `one` is in queue acquiring the lock first (since it is not plugged, + // it should enter the lock wait queue). + + tokio::task::yield_now().await; + + let send_2 = + tokio::spawn(async move { chan_2.send(Bytes::from(&b"two"[..])).await.unwrap() }); + println!("send_2 spawned"); + tokio::task::yield_now().await; + + // Unclog. + sink.set_clogged(false); + println!("unclogged"); + + // Both should finish with the unclogged sink. + send_2.await.unwrap(); + println!("send_2 finished"); + send_1.await.unwrap(); + println!("send_1 finished"); + + // The final result should be in order. + assert_eq!(sink.get_contents(), b"\x00zero\x01one\x02two"); + } } From e77df6bbee263061ece20c5390eac14e1b82504a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 11:59:26 +0200 Subject: [PATCH 083/735] Add additional test and documentation illustrating the plugging and clogging functionality of the testing sink --- src/lib.rs | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/lib.rs b/src/lib.rs index c8750bafa8..bee30b67be 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -113,6 +113,13 @@ pub(crate) mod tests { /// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data /// can flow into the sink. In a similar manner, the sink can be clogged - while it is possible /// to start sending new data, it will not report being done until the clog is cleared. + /// + /// ```text + /// Item -> (plugged?) [ ... ] -> (clogged?) -> done flushing + /// ^ Input ^ Plug (blocks input) ^ Buffer contents ^ Clog, prevents flush + /// ``` + /// + /// This can be used to simulate a sink on a busy or slow TCP connection, for example. #[derive(Default, Debug)] pub struct TestingSink { /// The state of the plug. @@ -290,6 +297,16 @@ pub(crate) mod tests { sink_impl_fwd!(&TestingSink); sink_impl_fwd!(TestingSinkRef); + #[test] + fn simple_lifecycle() { + let mut sink = TestingSink::new(); + assert!(sink.send(&b"one"[..]).now_or_never().is_some()); + assert!(sink.send(&b"two"[..]).now_or_never().is_some()); + assert!(sink.send(&b"three"[..]).now_or_never().is_some()); + + assert_eq!(sink.get_contents(), b"onetwothree"); + } + #[test] fn plug_blocks_sink() { let sink = TestingSink::new(); From 2d6461a24dc882c9e7d680b576cbedce3e445015 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 12:16:32 +0200 Subject: [PATCH 084/735] Fix typo in `MultiplexerClosed` --- src/error.rs | 2 +- src/mux.rs | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/error.rs b/src/error.rs index 6b921a3d93..756a54b44a 100644 --- a/src/error.rs +++ b/src/error.rs @@ -26,7 +26,7 @@ where AckStreamError, // TODO: Capture actual ack stream error here. /// The multiplexer was closed, while a handle tried to access it. #[error("Multiplexer closed")] - MultplexerClosed, + MultiplexerClosed, /// The wrapped sink returned an error. #[error(transparent)] Sink(#[from] E), diff --git a/src/mux.rs b/src/mux.rs index 16bca58148..33154e58eb 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -143,7 +143,7 @@ where match self.guard { Some(ref mut guard) => match guard.as_mut() { Some(sink) => Ok(sink), - None => Err(Error::MultplexerClosed), + None => Err(Error::MultiplexerClosed), }, None => { panic!("assume_get_sink called without holding a sink. this is a bug") @@ -182,7 +182,7 @@ where }; // At this point we have acquired the lock, now our only job is to stuff data into the sink. - try_ready!(guard.as_mut().ok_or(Error::MultplexerClosed)) + try_ready!(guard.as_mut().ok_or(Error::MultiplexerClosed)) .poll_ready_unpin(cx) .map_err(Error::Sink) } @@ -285,7 +285,7 @@ mod tests { .now_or_never() .unwrap() .unwrap_err(); - assert!(matches!(outcome, Error::MultplexerClosed)); + assert!(matches!(outcome, Error::MultiplexerClosed)); } #[test] From 404d8a68d361e223757b9be2cdb63da96325a4d0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 12:17:58 +0200 Subject: [PATCH 085/735] Rename `guard` to `sink_guard` in `Multiplexer` to make reviews easier --- src/mux.rs | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 33154e58eb..51e4f77b3f 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -67,7 +67,7 @@ impl Multiplexer { sink: self.sink.clone(), channel, lock_future: ReusableBoxFuture::new(mk_lock_future(self.sink.clone())), - guard: None, + sink_guard: None, } } @@ -121,7 +121,7 @@ pub struct MultiplexerHandle { /// protocol. A call to `poll_ready` will commence and ultimately complete guard acquisition. /// /// A [`Poll::Ready`] return value from either `poll_flush` or `poll_close` will release it. - guard: Option>, + sink_guard: Option>, } impl MultiplexerHandle @@ -140,7 +140,7 @@ where S: Sink, >::Error: std::error::Error, { - match self.guard { + match self.sink_guard { Some(ref mut guard) => match guard.as_mut() { Some(sink) => Ok(sink), None => Err(Error::MultiplexerClosed), @@ -161,7 +161,7 @@ where type Error = Error<>>::Error>; fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let guard = match self.guard { + let sink_guard = match self.sink_guard { None => { // We do not hold the guard at the moment, so attempt to acquire it. match self.lock_future.poll_unpin(cx) { @@ -170,7 +170,7 @@ where // later, which will not attempt to lock until first polled. let sink = self.sink.clone(); self.lock_future.set(mk_lock_future(sink)); - self.guard.insert(guard) + self.sink_guard.insert(guard) } Poll::Pending => { // The lock could not be acquired yet. @@ -182,7 +182,7 @@ where }; // At this point we have acquired the lock, now our only job is to stuff data into the sink. - try_ready!(guard.as_mut().ok_or(Error::MultiplexerClosed)) + try_ready!(sink_guard.as_mut().ok_or(Error::MultiplexerClosed)) .poll_ready_unpin(cx) .map_err(Error::Sink) } @@ -199,7 +199,7 @@ where let sink = try_ready!(self.assume_get_sink()); let outcome = ready!(sink.poll_flush_unpin(cx)); - self.guard = None; + self.sink_guard = None; Poll::Ready(outcome.map_err(Error::Sink)) } @@ -207,7 +207,7 @@ where let sink = try_ready!(self.assume_get_sink()); let outcome = ready!(sink.poll_close_unpin(cx)); - self.guard = None; + self.sink_guard = None; Poll::Ready(outcome.map_err(Error::Sink)) } From a909cf69d16e614d9fa0b8635783ed7be9ddd82d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 12:19:14 +0200 Subject: [PATCH 086/735] Fix misleading comment --- src/mux.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mux.rs b/src/mux.rs index 51e4f77b3f..b79fa3440e 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -181,7 +181,7 @@ where Some(ref mut guard) => guard, }; - // At this point we have acquired the lock, now our only job is to stuff data into the sink. + // We have acquired the lock, now our only job is to wait for the sink to become ready. try_ready!(sink_guard.as_mut().ok_or(Error::MultiplexerClosed)) .poll_ready_unpin(cx) .map_err(Error::Sink) From 128a4d37a0ab14807b855b27394df0accd2f2844 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Jun 2022 15:35:23 +0200 Subject: [PATCH 087/735] Remove obsolete `rr` module --- src/rr.rs | 124 ------------------------------------------------------ 1 file changed, 124 deletions(-) delete mode 100644 src/rr.rs diff --git a/src/rr.rs b/src/rr.rs deleted file mode 100644 index 9428cdf819..0000000000 --- a/src/rr.rs +++ /dev/null @@ -1,124 +0,0 @@ -use std::{ - cell::RefCell, - ops::{Deref, DerefMut}, - sync::{ - atomic::{AtomicBool, Ordering}, - Arc, Mutex, - }, -}; - -struct LockInner { - wait_list: Vec, - item: Option>, -} - -struct FairLock { - tickets: Vec, - inner: Mutex>, -} - -impl FairLock { - pub fn new(num_tickets: u8, item: T) -> Self { - let mut tickets = Vec::new(); - tickets.resize_with(num_tickets as usize, || AtomicBool::new(false)); - - FairLock { - tickets, - inner: Mutex::new(LockInner { - wait_list: Vec::new(), - item: Some(Box::new(item)), - }), - } - } -} - -struct Ticket { - id: u8, - lock: Arc>, -} - -impl Drop for Ticket { - fn drop(&mut self) { - let prev = self.lock.tickets[self.id as usize].fetch_and(false, Ordering::SeqCst); - debug_assert!( - !prev, - "dropped ticket that does not exist, this should never happen", - ); - } -} - -struct Guard { - id: u8, - item: Option>, - lock: Arc>, -} - -impl Drop for Guard { - fn drop(&mut self) { - let mut inner = self.lock.inner.lock().expect("HANDLE POISON"); - debug_assert!(inner.item.is_none()); - - inner.item = Some(self.item.take().expect("violation, item disappread")); - let first = inner.wait_list.pop(); - - debug_assert_eq!(first, Some(self.id)); - } -} - -impl Deref for Guard { - type Target = T; - - fn deref(&self) -> &Self::Target { - self.item.as_ref().expect("ITEM DISAPPREAD") - } -} - -impl DerefMut for Guard { - fn deref_mut(&mut self) -> &mut Self::Target { - self.item.as_mut().expect("ITEM DISAPPREAD") - } -} - -impl FairLock { - fn get_ticket(self: Arc, id: u8) -> Option> { - if !self.tickets[id as usize].fetch_xor(true, Ordering::SeqCst) { - self.inner.lock().expect("HANDLE POISON").wait_list.push(id); - Some(Ticket { - id, - lock: self.clone(), - }) - } else { - None - } - } -} - -impl Ticket { - fn try_acquire(self) -> Result, Self> { - let mut inner = self.lock.inner.lock().expect("TODO: Handle poison"); - - if inner.wait_list[0] != self.id { - drop(inner); - return Err(self); - } - - let item = inner.item.take().expect("item disappeared?"); - Ok(Guard { - id: self.id, - item: Some(item), - lock: self.lock.clone(), - }) - - // Now dropping ticket. - } -} - -#[cfg(test)] -mod tests { - struct Dummy; - - #[test] - fn basic_test() { - let fair_lock = Arc::new(FairLock::new()); - } -} From 2540028cf462c573fa94f32c93d703694048bdda Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 15:55:42 +0200 Subject: [PATCH 088/735] Change multiplexer to double-locking implementation --- src/mux.rs | 193 +++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 144 insertions(+), 49 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index b79fa3440e..72e797ae9e 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -1,8 +1,8 @@ //! Stream multiplexing //! -//! Multiplexes multiple sinks into a single one, allowing no more than one frame to be buffered for -//! each. Up to 256 channels are supported, being encoded with a leading byte on the underlying -//! downstream. +//! Multiplexes multiple sinks into a single one, without buffering any items. Up to 256 channels +//! are supported, each item sent on a specific channel will be forwarded with a 1-byte prefix +//! indicating the channel. //! //! ## Fairness //! @@ -10,10 +10,19 @@ //! for sending on the underlying sink. Under maximal contention, every `MultiplexerHandle` will //! receive `1/n` of the slots, with `n` being the total number of multiplexers, with no handle //! being able to send more than twice without all other waiting handles receiving a slot. +//! +//! ## Locking +//! +//! Sending and flushing an item each requires a separate lock acquisition, as the lock is released +//! after each `start_send` operation. This in turn means that a [`SinkExt::send_all`] call will not +//! hold the underlying output sink hostage until all items are send. use std::{ pin::Pin, - sync::Arc, + sync::{ + atomic::{AtomicUsize, Ordering}, + Arc, + }, task::{Context, Poll}, }; @@ -56,18 +65,40 @@ impl Multiplexer { /// Create a handle for a specific multiplexer channel on this multiplexer. /// - /// Any item sent via this handle's `Sink` implementation will be sent on the given channel. + /// Any item sent via this handle's `Sink` implementation will be sent on the given channel by + /// prefixing with the channel identifier (see module documentation). /// /// It is valid to have multiple handles for the same channel. + /// + /// # Correctness and cancellation safety + /// + /// Since a handle may hold a lock on the share sink, additional invariants that must be upheld + /// by the calling tasks: + /// + /// * Every call to `Sink::poll_ready` returning `Poll::Pending` **must** be repeated until + /// `Poll::Ready` is returned or followed by a drop of the handle. + /// * Every call to `Sink::poll_ready` returning `Poll::Ready` **must** be followed by a call to + /// `Sink::start_send` or a drop of the handle. + /// * Every call to `Sink::poll_flush` returning `Poll::Pending` must be repeated until + /// `Poll::Ready` is returned or followed by a drop of the handle. + /// * Every call to `Sink::poll_close` returning `Poll::Pending` must be repeated until + /// `Poll::Ready` is returned or followed by a drop of the handle. + /// + /// As a result **the `SinkExt::send`, `SinkExt::send_all`, `SinkExt::flush` and + /// `SinkExt::close` methods of any chain of sinks involving a `Multiplexer` is not cancellation + /// safe**. pub fn create_channel_handle(&self, channel: u8) -> MultiplexerHandle where S: Send + 'static, { MultiplexerHandle { sink: self.sink.clone(), + send_count: Arc::new(AtomicUsize::new(0)), channel, lock_future: ReusableBoxFuture::new(mk_lock_future(self.sink.clone())), sink_guard: None, + highest_flush: Arc::new(AtomicUsize::new(0)), + last_send: None, } } @@ -102,14 +133,23 @@ fn mk_lock_future( /// A handle to a multiplexer. /// /// A handle is bound to a specific channel, see [`Multiplexer::create_channel_handle`] for details. +/// +/// Closing a handle will close the underlying multiplexer stream. To only "close" a specific +/// channel, flush the handle and drop it. pub struct MultiplexerHandle { /// The sink shared across the multiplexer and all its handles. sink: Arc>>, + /// The number of items sent to the underlying sink. + send_count: Arc, + /// Highest `send_count` that has been flushed. + highest_flush: Arc, + /// The send count at which our last enqueued data was sent. + last_send: Option, /// Channel ID assigned to this handle. channel: u8, /// The future locking the shared sink. // Note: To avoid frequent heap allocations, a single box is reused for every lock this handle - // needs to acquire, whcich is on every sending of an item via `Sink`. + // needs to acquire, which is on every sending of an item via `Sink`. // // This relies on the fact that merely instantiating the locking future (via // `mk_lock_future`) will not do anything before the first poll (see @@ -118,9 +158,11 @@ pub struct MultiplexerHandle { /// A potential acquired guard for the underlying sink. /// /// Proper acquisition and dropping of the guard is dependent on callers obeying the sink - /// protocol. A call to `poll_ready` will commence and ultimately complete guard acquisition. + /// protocol and the invariants specified in the [`Multiplexer::create_channel_handle`] + /// documentation. /// - /// A [`Poll::Ready`] return value from either `poll_flush` or `poll_close` will release it. + /// A [`Poll::Ready`] return value from either `poll_flush` or `poll_close` or a call to + /// `start_send` will release the guard. sink_guard: Option>, } @@ -128,39 +170,14 @@ impl MultiplexerHandle where S: Send + 'static, { - /// Retrieve the shared sink, assuming a guard is held. + /// Acquire or return a guard on the sink lock. /// - /// Returns `Err(Error::MultiplexerClosed)` if the sink has been removed. + /// Helper function for lock acquisition: /// - /// # Panics - /// - /// If no guard is held in `self.guard`, panics. - fn assume_get_sink(&mut self) -> Result<&mut S, Error<>::Error>> - where - S: Sink, - >::Error: std::error::Error, - { - match self.sink_guard { - Some(ref mut guard) => match guard.as_mut() { - Some(sink) => Ok(sink), - None => Err(Error::MultiplexerClosed), - }, - None => { - panic!("assume_get_sink called without holding a sink. this is a bug") - } - } - } -} - -impl Sink for MultiplexerHandle -where - S: Sink> + Unpin + Send + 'static, - F: Buf, - >>::Error: std::error::Error, -{ - type Error = Error<>>::Error>; - - fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + /// * If the lock is already obtained, returns `Ready(guard)`. + /// * If the lock has not been obtained, attempts to poll the locking future, either returning + /// `Pending` or `Ready(guad)`. + fn acquire_lock(&mut self, cx: &mut Context<'_>) -> Poll<&mut SinkGuard> { let sink_guard = match self.sink_guard { None => { // We do not hold the guard at the moment, so attempt to acquire it. @@ -180,8 +197,22 @@ where } Some(ref mut guard) => guard, }; + Poll::Ready(sink_guard) + } +} - // We have acquired the lock, now our only job is to wait for the sink to become ready. +impl Sink for MultiplexerHandle +where + S: Sink> + Unpin + Send + 'static, + F: Buf, + >>::Error: std::error::Error, +{ + type Error = Error<>>::Error>; + + fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let sink_guard = ready!(self.acquire_lock(cx)); + + // We have acquired the lock, now our job is to wait for the sink to become ready. try_ready!(sink_guard.as_mut().ok_or(Error::MultiplexerClosed)) .poll_ready_unpin(cx) .map_err(Error::Sink) @@ -190,24 +221,88 @@ where fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let prefixed = ImmediateFrame::from(self.channel).chain(item); - self.assume_get_sink()? - .start_send_unpin(prefixed) - .map_err(Error::Sink) + // We take the guard here, so that early exits due to errors will free the lock. + let mut guard = match self.sink_guard.take() { + Some(guard) => guard, + None => { + panic!("protocol violation - `start_send` called before `poll_ready`"); + } + }; + + let sink = match guard.as_mut() { + Some(sink) => sink, + None => { + return Err(Error::MultiplexerClosed); + } + }; + + sink.start_send_unpin(prefixed).map_err(Error::Sink)?; + + // Item is enqueued, increase the send count. + let last_send = self.send_count.fetch_add(1, Ordering::SeqCst); + self.last_send = Some(last_send); + + Ok(()) } fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let sink = try_ready!(self.assume_get_sink()); + // Check if our last message was already flushed, this saves us some needless locking. + let last_send = if let Some(last_send) = self.last_send { + if self.highest_flush.load(Ordering::SeqCst) >= last_send { + // Someone else flushed the sink for us. + self.last_send = None; + self.sink_guard.take(); + return Poll::Ready(Ok(())); + } + + last_send + } else { + // There was no data that we are waiting to flush still. + self.sink_guard.take(); + return Poll::Ready(Ok(())); + }; + + // At this point we know that we have to flush, and for that we need the lock. + let sink_guard = ready!(self.acquire_lock(cx)); + + let outcome = match sink_guard.as_mut() { + Some(sink) => { + // We have the lock, so try to flush. + ready!(sink.poll_flush_unpin(cx)) + } + None => { + self.sink_guard.take(); + return Poll::Ready(Err(Error::MultiplexerClosed)); + } + }; + + if outcome.is_ok() { + self.highest_flush.fetch_max(last_send, Ordering::SeqCst); + self.last_send.take(); + } + + // Release lock. + self.sink_guard.take(); - let outcome = ready!(sink.poll_flush_unpin(cx)); - self.sink_guard = None; Poll::Ready(outcome.map_err(Error::Sink)) } fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let sink = try_ready!(self.assume_get_sink()); + let sink_guard = ready!(self.acquire_lock(cx)); + + let outcome = match sink_guard.as_mut() { + Some(sink) => { + ready!(sink.poll_close_unpin(cx)) + } + None => { + // Closing an underlying closed multiplexer has no effect. + self.sink_guard.take(); + return Poll::Ready(Ok(())); + } + }; - let outcome = ready!(sink.poll_close_unpin(cx)); - self.sink_guard = None; + // Release lock. + self.sink_guard.take(); Poll::Ready(outcome.map_err(Error::Sink)) } From 77e37fcdb8a2b6a7d57f44429266b282381ecd26 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 15:55:50 +0200 Subject: [PATCH 089/735] Fix clippy issue with `TestingSinkRef` --- src/lib.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lib.rs b/src/lib.rs index bee30b67be..6956e0d4cb 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -197,7 +197,7 @@ pub(crate) mod tests { /// Internally, the reference has a static lifetime through `Arc` and can thus be passed /// on independently. pub fn into_ref(self: Arc) -> TestingSinkRef { - TestingSinkRef(self.clone()) + TestingSinkRef(self) } /// Helper function for sink implementations, calling `poll_ready`. From 5eb538a51d0af3a15b27d7b5cbc6125970666ece Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 18:07:44 +0200 Subject: [PATCH 090/735] Set correct number for expected send --- src/mux.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mux.rs b/src/mux.rs index 72e797ae9e..9722686112 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -239,7 +239,7 @@ where sink.start_send_unpin(prefixed).map_err(Error::Sink)?; // Item is enqueued, increase the send count. - let last_send = self.send_count.fetch_add(1, Ordering::SeqCst); + let last_send = self.send_count.fetch_add(1, Ordering::SeqCst) + 1; self.last_send = Some(last_send); Ok(()) From afe8e2593f1b640d10905f37bf4b8af14a08e310 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 18:07:52 +0200 Subject: [PATCH 091/735] Cleanup `mux` tests --- src/mux.rs | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) diff --git a/src/mux.rs b/src/mux.rs index 9722686112..09d96bc3d9 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -384,7 +384,7 @@ mod tests { } #[test] - fn cancelled_send_does_not_deadlock_multiplexer() { + fn cancelled_send_does_not_deadlock_multiplexer_if_handle_dropped() { let sink = Arc::new(TestingSink::new()); let muxer = Multiplexer::new(sink.clone().into_ref()); @@ -397,7 +397,18 @@ mod tests { .is_none()); // At this point, we have cancelled a send that was in progress due to the sink not having - // finished. The sink will finish eventually, but has not been polled to completion. + // finished. The sink will finish eventually, but has not been polled to completion, which + // means the lock is still engaged. Dropping the handle resolves this. + drop(chan_0); + + // Unclog the sink - a fresh handle should be able to continue. + sink.set_clogged(false); + + let mut chan_0 = muxer.create_channel_handle(1); + assert!(chan_0 + .send(Bytes::from(&b"one"[..])) + .now_or_never() + .is_some()); } #[tokio::test] @@ -413,22 +424,17 @@ mod tests { let mut chan_2 = muxer.create_channel_handle(2); // Channel zero has a long send going on. - assert!(chan_0 - .send(Bytes::from(&b"zero"[..])) - .now_or_never() - .is_none()); + let send_0 = + tokio::spawn(async move { chan_0.send(Bytes::from(&b"zero"[..])).await.unwrap() }); + tokio::task::yield_now().await; // The data has already arrived (it's a clog, not a plug): assert_eq!(sink.get_contents(), b"\x00zero"); - println!("zero sent"); // The other two channels are sending in order. let send_1 = tokio::spawn(async move { - println!("begin chan_1 sending"); chan_1.send(Bytes::from(&b"one"[..])).await.unwrap(); - println!("done chan_1 sending"); }); - println!("send_1 spawned"); // Yield, ensuring that `one` is in queue acquiring the lock first (since it is not plugged, // it should enter the lock wait queue). @@ -437,18 +443,16 @@ mod tests { let send_2 = tokio::spawn(async move { chan_2.send(Bytes::from(&b"two"[..])).await.unwrap() }); - println!("send_2 spawned"); + tokio::task::yield_now().await; - // Unclog. + // Unclog, this causes the first write to finish and others to follow. sink.set_clogged(false); - println!("unclogged"); // Both should finish with the unclogged sink. send_2.await.unwrap(); - println!("send_2 finished"); + send_0.await.unwrap(); send_1.await.unwrap(); - println!("send_1 finished"); // The final result should be in order. assert_eq!(sink.get_contents(), b"\x00zero\x01one\x02two"); From 356f674c35f1db1fc04ffc58c86658fc3fd1b2d6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 19:10:03 +0200 Subject: [PATCH 092/735] Added `fixed_size` module --- src/fixed_size.rs | 94 +++++++++++++++++++++++++++++++++++++++++++++++ src/lib.rs | 1 + 2 files changed, 95 insertions(+) create mode 100644 src/fixed_size.rs diff --git a/src/fixed_size.rs b/src/fixed_size.rs new file mode 100644 index 0000000000..56adf5f403 --- /dev/null +++ b/src/fixed_size.rs @@ -0,0 +1,94 @@ +//! Immediate (small/fixed size) item sink and stream. +//! +//! `ImmediateSink` allows sending items for which `Into>` is +//! implemented. Typically this is true for small atomic types like `u32`, which are encoded as +//! little endian in throughout this crate. +//! +//! No additional headers are added, as immediate values are expected to be of fixed size. + +use std::{ + marker::PhantomData, + pin::Pin, + task::{Context, Poll}, +}; + +use futures::{Sink, SinkExt}; + +use crate::ImmediateFrame; + +/// Sink for immediate values. +/// +/// Any value passed into the sink (via the `futures::Sink` trait) will be converted into an +/// immediate `ImmediateFrame` and sent. +pub struct ImmediateSink { + /// The underlying stream where items are written. + stream: S, + /// Phantom data for the immediate array type. + _phantom: PhantomData, +} + +impl ImmediateSink { + /// Creates a new immediate sink on top of the given stream. + pub fn new(stream: S) -> Self { + Self { + stream, + _phantom: PhantomData, + } + } +} + +impl Sink for ImmediateSink +where + A: Unpin, + ImmediateFrame: From, + S: Sink> + Unpin, +{ + type Error = >>::Error; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().stream.poll_ready_unpin(cx) + } + + fn start_send(self: Pin<&mut Self>, item: T) -> Result<(), Self::Error> { + let immediate = item.into(); + self.get_mut().stream.start_send_unpin(immediate) + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().stream.poll_flush_unpin(cx) + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().stream.poll_close_unpin(cx) + } +} + +#[cfg(test)] +mod tests { + use std::sync::Arc; + + use futures::{FutureExt, SinkExt}; + + use crate::{fixed_size::ImmediateSink, tests::TestingSink}; + + #[test] + fn simple_sending() { + let output = Arc::new(TestingSink::new()); + let mut sink = ImmediateSink::new(output.clone().into_ref()); + + sink.send(0x1234u32).now_or_never().unwrap().unwrap(); + assert_eq!(output.get_contents(), &[0x34, 0x12, 0x00, 0x00]); + + sink.send(0xFFFFFFFFu32).now_or_never().unwrap().unwrap(); + assert_eq!( + output.get_contents(), + &[0x34, 0x12, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF] + ); + + sink.send(0x78563412u32).now_or_never().unwrap().unwrap(); + assert_eq!( + output.get_contents(), + &[0x34, 0x12, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x12, 0x34, 0x56, 0x78] + ); + } +} diff --git a/src/lib.rs b/src/lib.rs index 6956e0d4cb..3b73d8a2c8 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -3,6 +3,7 @@ pub mod chunked; pub mod error; pub mod length_prefixed; pub mod mux; +pub mod fixed_size; use bytes::Buf; From f0d6f12dabb1cf443361f7841667118be6c81315 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 19:27:21 +0200 Subject: [PATCH 093/735] Fix wrong name for `stream` (should be `sink`) attribute of `ImmediateSink` --- src/fixed_size.rs | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/src/fixed_size.rs b/src/fixed_size.rs index 56adf5f403..f7fb6202ab 100644 --- a/src/fixed_size.rs +++ b/src/fixed_size.rs @@ -21,17 +21,17 @@ use crate::ImmediateFrame; /// Any value passed into the sink (via the `futures::Sink` trait) will be converted into an /// immediate `ImmediateFrame` and sent. pub struct ImmediateSink { - /// The underlying stream where items are written. - stream: S, + /// The underlying sink where items are written. + sink: S, /// Phantom data for the immediate array type. _phantom: PhantomData, } impl ImmediateSink { /// Creates a new immediate sink on top of the given stream. - pub fn new(stream: S) -> Self { + pub fn new(sink: S) -> Self { Self { - stream, + sink, _phantom: PhantomData, } } @@ -46,20 +46,20 @@ where type Error = >>::Error; fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().stream.poll_ready_unpin(cx) + self.get_mut().sink.poll_ready_unpin(cx) } fn start_send(self: Pin<&mut Self>, item: T) -> Result<(), Self::Error> { let immediate = item.into(); - self.get_mut().stream.start_send_unpin(immediate) + self.get_mut().sink.start_send_unpin(immediate) } fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().stream.poll_flush_unpin(cx) + self.get_mut().sink.poll_flush_unpin(cx) } fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().stream.poll_close_unpin(cx) + self.get_mut().sink.poll_close_unpin(cx) } } From 59de6fd00f6e77fbcd678addae0f022104c08cf4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 20:03:59 +0200 Subject: [PATCH 094/735] Implement stream for fixed size items --- src/fixed_size.rs | 60 ++++++++++++++++++++++++++++++++++++++++++++--- src/lib.rs | 40 +++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+), 3 deletions(-) diff --git a/src/fixed_size.rs b/src/fixed_size.rs index f7fb6202ab..f36034fdba 100644 --- a/src/fixed_size.rs +++ b/src/fixed_size.rs @@ -12,9 +12,11 @@ use std::{ task::{Context, Poll}, }; -use futures::{Sink, SinkExt}; +use bytes::Bytes; +use futures::{ready, Sink, SinkExt, Stream, StreamExt}; +use thiserror::Error; -use crate::ImmediateFrame; +use crate::{FromFixedSize, ImmediateFrame}; /// Sink for immediate values. /// @@ -27,7 +29,24 @@ pub struct ImmediateSink { _phantom: PhantomData, } -impl ImmediateSink { +/// Stream of immediate values. +/// +/// Reconstructs immediates from variably sized frames. The incoming frames are assumed to be all of +/// the same size. +pub struct ImmediateStream { + stream: S, + _type: PhantomData, +} + +/// Error occuring during immediate stream reading. +#[derive(Debug, Error)] +pub enum ImmediateStreamError { + /// The incoming frame was of the wrong size. + #[error("wrong size for immediate frame, expected {expected}, got {actual}")] + WrongSize { actual: usize, expected: usize }, +} + +impl ImmediateSink { /// Creates a new immediate sink on top of the given stream. pub fn new(sink: S) -> Self { Self { @@ -37,6 +56,15 @@ impl ImmediateSink { } } +impl ImmediateStream { + pub fn new(stream: S) -> Self { + Self { + stream, + _type: PhantomData, + } + } +} + impl Sink for ImmediateSink where A: Unpin, @@ -63,6 +91,32 @@ where } } +impl Stream for ImmediateStream +where + T: FromFixedSize + Unpin, + S: Stream + Unpin, +{ + type Item = Result; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + match ready!(self_mut.stream.poll_next_unpin(cx)) { + Some(frame) => { + let slice = AsRef::<[u8]>::as_ref(&frame); + + Poll::Ready(Some(T::from_slice(slice).ok_or({ + ImmediateStreamError::WrongSize { + actual: slice.len(), + expected: T::WIRE_SIZE, + } + }))) + } + None => Poll::Ready(None), + } + } +} + #[cfg(test)] mod tests { use std::sync::Arc; diff --git a/src/lib.rs b/src/lib.rs index 7d4d900dba..6d04c2a684 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -19,6 +19,19 @@ pub struct ImmediateFrame { value: A, } +/// Canonical encoding of immediates. +/// +/// This trait describes the conversion of an immediate type from a slice of bytes. +pub trait FromFixedSize: Sized { + /// The size of the type on the wire. + /// + /// `from_slice` expected its input argument to be of this length. + const WIRE_SIZE: usize; + + /// Try to reconstruct a type from a slice of bytes. + fn from_slice(slice: &[u8]) -> Option; +} + impl ImmediateFrame { #[inline] pub fn new(value: A) -> Self { @@ -47,6 +60,33 @@ impl From for ImmediateFrame<[u8; 4]> { } } +impl FromFixedSize for u8 { + const WIRE_SIZE: usize = 1; + + fn from_slice(slice: &[u8]) -> Option { + match *slice { + [v] => Some(v), + _ => None, + } + } +} + +impl FromFixedSize for u16 { + const WIRE_SIZE: usize = 2; + + fn from_slice(slice: &[u8]) -> Option { + Some(u16::from_le_bytes(slice.try_into().ok()?)) + } +} + +impl FromFixedSize for u32 { + const WIRE_SIZE: usize = 4; + + fn from_slice(slice: &[u8]) -> Option { + Some(u32::from_le_bytes(slice.try_into().ok()?)) + } +} + impl Buf for ImmediateFrame where A: AsRef<[u8]>, From d9a8d2380fe474f2dc56af7d772594e3e60f0abb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 12 Jun 2022 20:21:51 +0200 Subject: [PATCH 095/735] Implement test for fixed size stream --- src/fixed_size.rs | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/src/fixed_size.rs b/src/fixed_size.rs index f36034fdba..2d2c84aca0 100644 --- a/src/fixed_size.rs +++ b/src/fixed_size.rs @@ -121,10 +121,13 @@ where mod tests { use std::sync::Arc; - use futures::{FutureExt, SinkExt}; + use bytes::Bytes; + use futures::{stream, FutureExt, SinkExt, StreamExt}; use crate::{fixed_size::ImmediateSink, tests::TestingSink}; + use super::ImmediateStream; + #[test] fn simple_sending() { let output = Arc::new(TestingSink::new()); @@ -145,4 +148,19 @@ mod tests { &[0x34, 0x12, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x12, 0x34, 0x56, 0x78] ); } + + #[test] + fn simple_stream() { + let input = vec![ + Bytes::copy_from_slice(&[0x78, 0x56, 0x34, 0x12]), + Bytes::copy_from_slice(&[0xDD, 0xCC, 0xBB, 0xAA]), + ]; + + let stream = ImmediateStream::<_, u32>::new(stream::iter(input)); + + let output: Vec> = stream.collect().now_or_never().unwrap(); + let values: Vec = output.into_iter().collect::>().unwrap(); + + assert_eq!(values, &[0x12345678, 0xAABBCCDD]); + } } From b065cf4cb9188266b49509099d7c2c8c7b8fde6a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 11:52:17 +0200 Subject: [PATCH 096/735] Slightly overhaul docs and internal naming of `frame_reader` module --- src/frame_reader.rs | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 9de3c668c8..a3072209f9 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -1,7 +1,7 @@ -//! Frame reader +//! Length-prefixed frame reading //! -//! A reader that decodes the incoming stream of the length delimited frames into separate frames. -//! Each frame is expected to be prefixed with two bytes representing its length. +//! A reader that decodes an incoming stream of length delimited frames into separate frames. Each +//! frame is expected to be prefixed with two bytes representing its length. use std::{pin::Pin, task::Poll}; @@ -13,16 +13,19 @@ use crate::error::Error; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); -pub(crate) struct FrameReader { +/// Frame reader for length prefixed frames. +pub struct FrameReader { + /// The underlying async bytestream being read. stream: R, + /// Internal buffer for incomplete frames. buffer: BytesMut, - // How much to grow the buffer when reading from the stream. + /// Maximum size of a single read call. buffer_increment: u16, } impl FrameReader { - #[cfg(test)] - pub(crate) fn new(stream: R, buffer_increment: u16) -> Self { + /// Creates a new frame reader on a given stream with the given read buffer increment. + pub fn new(stream: R, buffer_increment: u16) -> Self { Self { stream, buffer: BytesMut::new(), @@ -31,8 +34,9 @@ impl FrameReader { } } -// Checks if the specified buffer contains a length delimited frame. -// If yes, it is removed from the buffer and returned. +/// Extracts a length delimited frame from a given buffer. +/// +/// If a frame is found, it is split off from the buffer and returned. fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Error> { let bytes_in_buffer = buffer.remaining(); if bytes_in_buffer < LENGTH_MARKER_SIZE { @@ -107,10 +111,9 @@ mod tests { use super::length_delimited_frame; - // In tests use small value so that we make sure that - // we correctly merge data that was polled from - // the stream in small chunks. - const BUFFER_INCREMENT: u16 = 4; + // In tests use small value to make sure that we correctly merge data that was polled from the + // stream in small chunks. + const TESTING_BUFFER_INCREMENT: u16 = 4; #[test] fn produces_fragments_from_stream() { @@ -122,7 +125,7 @@ mod tests { b"\xffM".to_vec(), ]; - let defragmentizer = FrameReader::new(stream, BUFFER_INCREMENT); + let defragmentizer = FrameReader::new(stream, TESTING_BUFFER_INCREMENT); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); From e3e7f6370929ac4104597c8423b1845377bb0e69 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 11:54:53 +0200 Subject: [PATCH 097/735] Make `length_delimited_frame` not return `Result`, as it will never error --- src/frame_reader.rs | 38 +++++++++++++++++--------------------- 1 file changed, 17 insertions(+), 21 deletions(-) diff --git a/src/frame_reader.rs b/src/frame_reader.rs index a3072209f9..99c5c303a3 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -8,8 +8,6 @@ use std::{pin::Pin, task::Poll}; use bytes::{Buf, Bytes, BytesMut}; use futures::{AsyncRead, Stream}; -use crate::error::Error; - /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); @@ -37,10 +35,10 @@ impl FrameReader { /// Extracts a length delimited frame from a given buffer. /// /// If a frame is found, it is split off from the buffer and returned. -fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Error> { +fn length_delimited_frame(buffer: &mut BytesMut) -> Option { let bytes_in_buffer = buffer.remaining(); if bytes_in_buffer < LENGTH_MARKER_SIZE { - return Ok(None); + return None; } let data_length = u16::from_le_bytes( buffer[0..LENGTH_MARKER_SIZE] @@ -51,13 +49,13 @@ fn length_delimited_frame(buffer: &mut BytesMut) -> Result, Err let end = LENGTH_MARKER_SIZE + data_length; if bytes_in_buffer < end { - return Ok(None); + return None; } let mut full_frame = buffer.split_to(end); let _ = full_frame.get_u16_le(); - Ok(Some(full_frame)) + Some(full_frame) } impl Stream for FrameReader @@ -78,8 +76,8 @@ where } = self.get_mut(); loop { match length_delimited_frame(buffer) { - Ok(Some(frame)) => return Poll::Ready(Some(frame.freeze())), - Ok(None) => { + Some(frame) => return Poll::Ready(Some(frame.freeze())), + None => { let start = buffer.len(); let end = start + *buffer_increment as usize; buffer.resize(end, 0x00); @@ -95,8 +93,6 @@ where Poll::Pending => return Poll::Pending, } } - - Err(err) => panic!("length_delimited_frame() failed: {}", err), } } } @@ -134,7 +130,7 @@ mod tests { #[test] fn extracts_length_delimited_frame() { let mut stream = BytesMut::from(&b"\x05\x00ABCDE\x05\x00FGHIJ\x02\x00KL\x01\x00M"[..]); - let frame = length_delimited_frame(&mut stream).unwrap().unwrap(); + let frame = length_delimited_frame(&mut stream).unwrap(); assert_eq!(frame, "ABCDE"); assert_eq!(stream, b"\x05\x00FGHIJ\x02\x00KL\x01\x00M"[..]); @@ -143,7 +139,7 @@ mod tests { #[test] fn extracts_length_delimited_frame_single_frame() { let mut stream = BytesMut::from(&b"\x01\x00X"[..]); - let frame = length_delimited_frame(&mut stream).unwrap().unwrap(); + let frame = length_delimited_frame(&mut stream).unwrap(); assert_eq!(frame, "X"); assert!(stream.is_empty()); @@ -152,36 +148,36 @@ mod tests { #[test] fn extracts_length_delimited_frame_empty_buffer() { let mut stream = BytesMut::from(&b""[..]); - let frame = length_delimited_frame(&mut stream).unwrap(); + let opt_frame = length_delimited_frame(&mut stream); - assert!(frame.is_none()); + assert!(opt_frame.is_none()); assert!(stream.is_empty()); } #[test] fn extracts_length_delimited_frame_incomplete_length_in_buffer() { let mut stream = BytesMut::from(&b"A"[..]); - let frame = length_delimited_frame(&mut stream).unwrap(); + let opt_frame = length_delimited_frame(&mut stream); - assert!(frame.is_none()); + assert!(opt_frame.is_none()); assert_eq!(stream, b"A"[..]); } #[test] fn extracts_length_delimited_frame_incomplete_data_in_buffer() { let mut stream = BytesMut::from(&b"\xff\xffABCD"[..]); - let frame = length_delimited_frame(&mut stream).unwrap(); + let opt_frame = length_delimited_frame(&mut stream); - assert!(frame.is_none()); + assert!(opt_frame.is_none()); assert_eq!(stream, b"\xff\xffABCD"[..]); } #[test] fn extracts_length_delimited_frame_only_length_in_buffer() { let mut stream = BytesMut::from(&b"\xff\xff"[..]); - let frame = length_delimited_frame(&mut stream).unwrap(); + let opt_frame = length_delimited_frame(&mut stream); - assert!(frame.is_none()); + assert!(opt_frame.is_none()); assert_eq!(stream, b"\xff\xff"[..]); } @@ -191,7 +187,7 @@ mod tests { for _ in 0..u16::MAX { stream.put_u8(50); } - let mut frame = length_delimited_frame(&mut stream).unwrap().unwrap(); + let mut frame = length_delimited_frame(&mut stream).unwrap(); assert_eq!(frame.remaining(), u16::MAX as usize); for _ in 0..u16::MAX { From 007a887bda1609ede05215f0a51ac4bc9f0d8e70 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 12:07:47 +0200 Subject: [PATCH 098/735] Make `collect_stream_results` available crate-wide --- src/chunked.rs | 9 ++++++--- src/fixed_size.rs | 12 ++++++------ src/frame_reader.rs | 15 ++++++--------- src/lib.rs | 20 +++++++++++++++++++- 4 files changed, 37 insertions(+), 19 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index bc1c33d7b3..9a3b1d5007 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -66,11 +66,14 @@ where /// Generates the "defragmentizer", i.e.: an object that when given the source stream of fragments will yield the entire message. #[allow(unused)] -pub(crate) fn make_defragmentizer>(source: S) -> impl Stream { +pub(crate) fn make_defragmentizer>>( + source: S, +) -> impl Stream { let mut buffer = vec![]; - source.filter_map(move |mut fragment| { + source.filter_map(move |fragment| { + let mut fragment = fragment.expect("TODO: handle read error"); let first_byte = *fragment.first().expect("missing first byte"); - buffer.push(fragment.split_off(std::mem::size_of_val(&first_byte))); + buffer.push(fragment.split_off(1)); match first_byte { FINAL_CHUNK => { // TODO: Check the true zero-copy approach. diff --git a/src/fixed_size.rs b/src/fixed_size.rs index 2d2c84aca0..9ef969fa81 100644 --- a/src/fixed_size.rs +++ b/src/fixed_size.rs @@ -122,9 +122,12 @@ mod tests { use std::sync::Arc; use bytes::Bytes; - use futures::{stream, FutureExt, SinkExt, StreamExt}; + use futures::{stream, FutureExt, SinkExt}; - use crate::{fixed_size::ImmediateSink, tests::TestingSink}; + use crate::{ + fixed_size::ImmediateSink, + tests::{collect_stream_results, TestingSink}, + }; use super::ImmediateStream; @@ -158,9 +161,6 @@ mod tests { let stream = ImmediateStream::<_, u32>::new(stream::iter(input)); - let output: Vec> = stream.collect().now_or_never().unwrap(); - let values: Vec = output.into_iter().collect::>().unwrap(); - - assert_eq!(values, &[0x12345678, 0xAABBCCDD]); + assert_eq!(collect_stream_results(stream), &[0x12345678, 0xAABBCCDD]); } } diff --git a/src/frame_reader.rs b/src/frame_reader.rs index 99c5c303a3..9b1ad79c6d 100644 --- a/src/frame_reader.rs +++ b/src/frame_reader.rs @@ -3,7 +3,7 @@ //! A reader that decodes an incoming stream of length delimited frames into separate frames. Each //! frame is expected to be prefixed with two bytes representing its length. -use std::{pin::Pin, task::Poll}; +use std::{io, pin::Pin, task::Poll}; use bytes::{Buf, Bytes, BytesMut}; use futures::{AsyncRead, Stream}; @@ -62,8 +62,7 @@ impl Stream for FrameReader where R: AsyncRead + Unpin, { - // TODO: Ultimately, this should become Result. - type Item = Bytes; + type Item = io::Result; fn poll_next( self: Pin<&mut Self>, @@ -76,7 +75,7 @@ where } = self.get_mut(); loop { match length_delimited_frame(buffer) { - Some(frame) => return Poll::Ready(Some(frame.freeze())), + Some(frame) => return Poll::Ready(Some(Ok(frame.freeze()))), None => { let start = buffer.len(); let end = start + *buffer_increment as usize; @@ -89,7 +88,7 @@ where return Poll::Ready(None); } } - Poll::Ready(Err(err)) => panic!("poll_read() failed: {}", err), + Poll::Ready(Err(err)) => return Poll::Ready(Some(Err(err))), Poll::Pending => return Poll::Pending, } } @@ -101,9 +100,8 @@ where #[cfg(test)] mod tests { use bytes::{Buf, BufMut, BytesMut}; - use futures::{FutureExt, StreamExt}; - use crate::frame_reader::FrameReader; + use crate::{frame_reader::FrameReader, tests::collect_stream_results}; use super::length_delimited_frame; @@ -123,8 +121,7 @@ mod tests { let defragmentizer = FrameReader::new(stream, TESTING_BUFFER_INCREMENT); - let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); - assert_eq!(expected, messages); + assert_eq!(expected, collect_stream_results(defragmentizer)); } #[test] diff --git a/src/lib.rs b/src/lib.rs index 6d04c2a684..8bf0f8e32f 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -113,6 +113,7 @@ where pub(crate) mod tests { use std::{ convert::Infallible, + fmt::Debug, io::Read, num::NonZeroUsize, ops::Deref, @@ -122,7 +123,7 @@ pub(crate) mod tests { }; use bytes::{Buf, Bytes}; - use futures::{future, FutureExt, Sink, SinkExt, StreamExt}; + use futures::{future, FutureExt, Sink, SinkExt, Stream, StreamExt}; use tokio_util::sync::PollSender; use crate::{ @@ -156,6 +157,23 @@ pub(crate) mod tests { vec } + /// Given a stream producing results, returns the values. + /// + /// # Panics + /// + /// Panics if the future is not `Poll::Ready` or any value is an error. + pub fn collect_stream_results(stream: S) -> Vec + where + E: Debug, + S: Stream>, + { + let results: Vec<_> = stream.collect().now_or_never().expect("stream not ready"); + results + .into_iter() + .collect::>() + .expect("error in stream results") + } + /// A sink for unit testing. /// /// All data sent to it will be written to a buffer immediately that can be read during From f979a6273ba63200284e88aef4923d84ac6ac7e2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 12:16:37 +0200 Subject: [PATCH 099/735] Move length delimited IO to its own module --- src/length_delimited_io.rs | 2 ++ src/{frame_reader.rs => length_delimited_io/reader.rs} | 2 +- src/{length_prefixed.rs => length_delimited_io/writer.rs} | 0 src/lib.rs | 6 ++---- 4 files changed, 5 insertions(+), 5 deletions(-) create mode 100644 src/length_delimited_io.rs rename src/{frame_reader.rs => length_delimited_io/reader.rs} (98%) rename src/{length_prefixed.rs => length_delimited_io/writer.rs} (100%) diff --git a/src/length_delimited_io.rs b/src/length_delimited_io.rs new file mode 100644 index 0000000000..c9134a0edb --- /dev/null +++ b/src/length_delimited_io.rs @@ -0,0 +1,2 @@ +pub mod reader; +pub mod writer; diff --git a/src/frame_reader.rs b/src/length_delimited_io/reader.rs similarity index 98% rename from src/frame_reader.rs rename to src/length_delimited_io/reader.rs index 9b1ad79c6d..fcf823f0f0 100644 --- a/src/frame_reader.rs +++ b/src/length_delimited_io/reader.rs @@ -101,7 +101,7 @@ where mod tests { use bytes::{Buf, BufMut, BytesMut}; - use crate::{frame_reader::FrameReader, tests::collect_stream_results}; + use crate::{length_delimited_io::reader::FrameReader, tests::collect_stream_results}; use super::length_delimited_frame; diff --git a/src/length_prefixed.rs b/src/length_delimited_io/writer.rs similarity index 100% rename from src/length_prefixed.rs rename to src/length_delimited_io/writer.rs diff --git a/src/lib.rs b/src/lib.rs index 8bf0f8e32f..f1d0d93cf9 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -4,8 +4,7 @@ pub mod backpressured; pub mod chunked; pub mod error; pub mod fixed_size; -pub mod frame_reader; -pub mod length_prefixed; +pub mod length_delimited_io; pub mod mux; use bytes::Buf; @@ -128,8 +127,7 @@ pub(crate) mod tests { use crate::{ chunked::{make_defragmentizer, make_fragmentizer}, - frame_reader::FrameReader, - length_prefixed::frame_add_length_prefix, + length_delimited_io::{reader::FrameReader, writer::frame_add_length_prefix}, }; // In tests use small value so that we make sure that From 7e7bac4b21088dc60ee453a58f39a55c354140f9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 13:25:27 +0200 Subject: [PATCH 100/735] Add new `io` module --- src/io.rs | 135 +++++++++++++++++++++++++++++ src/io/length_delimited.rs | 171 +++++++++++++++++++++++++++++++++++++ src/lib.rs | 1 + 3 files changed, 307 insertions(+) create mode 100644 src/io.rs create mode 100644 src/io/length_delimited.rs diff --git a/src/io.rs b/src/io.rs new file mode 100644 index 0000000000..905f7529d3 --- /dev/null +++ b/src/io.rs @@ -0,0 +1,135 @@ +//! Frame reading and writing +//! +//! Frame readers and writers are responsible for writing a [`Bytes`] frame to a an `AsyncWrite`, or +//! reading them from `AsyncRead`. They can be given a flexible function to encode and decode +//! frames. + +mod length_delimited; + +use std::{ + io, + pin::Pin, + task::{Context, Poll}, +}; + +use bytes::{Buf, Bytes, BytesMut}; +use futures::{AsyncRead, Stream}; +use thiserror::Error; + +/// Frame decoder. +/// +/// A frame decoder is responsible for extracting a frame from a reader's internal buffer. +pub trait Decoder { + /// Decoding error. + type Error: std::error::Error + Send + Sync + 'static; + + /// Decodes a frame from a buffer. + /// + /// If `buffer` contains enough + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; +} + +/// Frame encoder. +/// +/// A frame encoder adds the framing envelope (or replaces the frame entirely) of a given raw frame. +pub trait Encoder { + /// Encoding error. + type Error: std::error::Error + Send + Sync + 'static; + + /// The wrapped frame resulting from encoding the given raw frame. + /// + /// While this can be simply `Bytes`, using something like `bytes::Chain` allows for more + /// efficient encoding here. + type WrappedFrame: Buf + Send + Sync + 'static; + + /// Encode a frame. + /// + /// The resulting `Bytes` should be the bytes to send into the outgoing stream, it must contain + /// the information required for an accompanying `Decoder` to be able to reconstruct the frame + /// from a raw byte stream. + fn encode_frame(&mut self, raw_frame: Bytes) -> Result; +} + +/// The outcome of a [`decode_frame`] call. +#[derive(Debug, Error)] +pub enum DecodeResult { + /// A complete frame was decoded. + Frame(BytesMut), + /// No frame could be decoded, an unknown amount of bytes is still required. + Incomplete, + /// No frame could be decoded, but the remaining amount of bytes required is known. + Remaining(usize), + /// Irrecoverably failed to decode frame. + Failed(E), +} + +/// Frame reader for frames. +pub struct FrameReader { + /// The decoder used to decode frames. + decoder: D, + /// The underlying async bytestream being read. + stream: R, + /// Internal buffer for incomplete frames. + buffer: BytesMut, + /// Maximum number of bytes to read. + max_read_buffer_increment: usize, +} + +impl FrameReader { + /// Creates a new frame reader on a given stream with the given read buffer increment. + pub fn new(decoder: D, stream: R, max_read_buffer_increment: usize) -> Self { + Self { + decoder, + stream, + buffer: BytesMut::new(), + max_read_buffer_increment, + } + } + + /// Deconstructs a frame reader into decoder, reader and buffer. + pub fn into_parts(self) -> (D, R, BytesMut) { + (self.decoder, self.stream, self.buffer) + } +} + +impl Stream for FrameReader +where + D: Decoder + Unpin, + R: AsyncRead + Unpin, +{ + type Item = io::Result; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let FrameReader { + ref mut stream, + ref mut decoder, + ref mut buffer, + max_read_buffer_increment, + } = self.get_mut(); + loop { + let next_read = match decoder.decode_frame(buffer) { + DecodeResult::Frame(frame) => return Poll::Ready(Some(Ok(frame.freeze()))), + DecodeResult::Incomplete => *max_read_buffer_increment, + DecodeResult::Remaining(remaining) => remaining.min(*max_read_buffer_increment), + DecodeResult::Failed(error) => { + return Poll::Ready(Some(Err(io::Error::new(io::ErrorKind::Other, error)))) + } + }; + + let start = buffer.len(); + let end = start + next_read; + buffer.resize(end, 0x00); + + match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { + Poll::Ready(Ok(bytes_read)) => { + buffer.truncate(start + bytes_read); + if bytes_read == 0 { + return Poll::Ready(None); + } + } + Poll::Ready(Err(err)) => return Poll::Ready(Some(Err(err))), + Poll::Pending => return Poll::Pending, + } + } + } +} diff --git a/src/io/length_delimited.rs b/src/io/length_delimited.rs new file mode 100644 index 0000000000..82fa2dbdd9 --- /dev/null +++ b/src/io/length_delimited.rs @@ -0,0 +1,171 @@ +//! 2-byte Length delimited frame encoding/decoding. +//! +//! Allows for frames to be at most `u16::MAX` (64 KB) in size. Frames are encoded by prefixing +//! their length in little endian byte order in front of every frame. + +use std::convert::Infallible; + +use bytes::{Buf, Bytes, BytesMut}; +use thiserror::Error; + +use crate::ImmediateFrame; + +use super::{DecodeResult, Decoder, Encoder}; + +/// Lenght of the prefix that describes the length of the following frame. +const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); + +/// Two-byte length delimited frame encoder. +pub struct LengthDelimited; + +impl Decoder for LengthDelimited { + type Error = Infallible; + + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { + let bytes_in_buffer = buffer.remaining(); + if bytes_in_buffer < LENGTH_MARKER_SIZE { + return DecodeResult::Incomplete; + } + let data_length = u16::from_le_bytes( + buffer[0..LENGTH_MARKER_SIZE] + .try_into() + .expect("any two bytes should be parseable to u16"), + ) as usize; + + let end = LENGTH_MARKER_SIZE + data_length; + + if bytes_in_buffer < end { + return DecodeResult::Remaining(end - bytes_in_buffer); + } + + let mut full_frame = buffer.split_to(end); + let _ = full_frame.get_u16_le(); + + DecodeResult::Frame(full_frame) + } +} + +/// A length-based encoding error. +#[derive(Debug, Error)] +#[error("outgoing frame would exceed maximum frame length of 64 KB: {0}")] +pub struct LengthExceededError(usize); + +/// The frame type for length prefixed frames. +pub type LengthPrefixedFrame = bytes::buf::Chain, F>; + +impl Encoder for LengthDelimited { + type Error = LengthExceededError; + type WrappedFrame = LengthPrefixedFrame; + + fn encode_frame(&mut self, raw_frame: bytes::Bytes) -> Result { + let remaining = raw_frame.remaining(); + let length: u16 = remaining + .try_into() + .map_err(|_err| LengthExceededError(remaining))?; + Ok(ImmediateFrame::from(length).chain(raw_frame)) + } +} + +#[cfg(test)] +mod tests { + use futures::io::Cursor; + + use crate::{io::FrameReader, tests::collect_stream_results}; + + use super::LengthDelimited; + + // In tests use small value to make sure that we correctly merge data that was polled from the + // stream in small chunks. + const TESTING_BUFFER_INCREMENT: usize = 4; + + /// Decodes the input string, returning the decoded frames and the remainder. + fn run_decoding_stream(input: &[u8]) -> (Vec>, Vec) { + let stream = Cursor::new(input); + + let mut reader = FrameReader::new(LengthDelimited, stream, TESTING_BUFFER_INCREMENT); + + let decoded: Vec<_> = collect_stream_results(&mut reader) + .into_iter() + .map(|bytes| bytes.into_iter().collect::>()) + .collect(); + + // Extract the remaining data. + let (_decoder, cursor, buffer) = reader.into_parts(); + let mut remaining = Vec::new(); + remaining.extend(buffer.into_iter()); + let cursor_pos = cursor.position() as usize; + remaining.extend(&cursor.into_inner()[cursor_pos..]); + + (decoded, remaining) + } + + #[test] + fn produces_fragments_from_stream() { + let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; + let expected: &[&[u8]] = &[b"\x00ABCDE", b"\x00FGHIJ", b"\xffKL", b"\xffM"]; + + let (decoded, remainder) = run_decoding_stream(input); + + assert_eq!(expected, decoded); + assert!(remainder.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_single_frame() { + let input = b"\x01\x00X"; + + let (decoded, remainder) = run_decoding_stream(input); + assert_eq!(decoded, &[b"X"]); + assert!(remainder.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_empty_buffer() { + let input: &[u8] = b""; + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + assert!(remainder.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_incomplete_length_in_buffer() { + let input = b"A"; + + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + assert_eq!(remainder, b"A"); + } + + #[test] + fn extracts_length_delimited_frame_incomplete_data_in_buffer() { + let input = b"\xff\xffABCD"; + + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + + assert_eq!(remainder, b"\xff\xffABCD"[..]); + } + + #[test] + fn extracts_length_delimited_frame_only_length_in_buffer() { + let input = b"\xff\xff"; + + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + assert_eq!(remainder, b"\xff\xff"[..]); + } + + #[test] + fn extracts_length_delimited_frame_max_size() { + let mut input = Vec::from(&b"\xff\xff"[..]); + input.resize(u16::MAX as usize + 2, 50); + let (decoded, remainder) = run_decoding_stream(&input); + + assert_eq!(decoded, &[&input[2..]]); + assert!(remainder.is_empty()); + } +} diff --git a/src/lib.rs b/src/lib.rs index f1d0d93cf9..5a1ee748bb 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -4,6 +4,7 @@ pub mod backpressured; pub mod chunked; pub mod error; pub mod fixed_size; +pub mod io; pub mod length_delimited_io; pub mod mux; From b41e578c374f685288590b2044637d7c15e90dee Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 14:05:21 +0200 Subject: [PATCH 101/735] Lift `try_ready!` macro --- src/lib.rs | 13 +++++++++++++ src/mux.rs | 14 +------------- 2 files changed, 14 insertions(+), 13 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 5a1ee748bb..1a708da5b6 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -10,6 +10,19 @@ pub mod mux; use bytes::Buf; +/// Helper macro for returning a `Poll::Ready(Err)` eagerly. +/// +/// Can be remove once `Try` is stabilized for `Poll`. +#[macro_export] +macro_rules! try_ready { + ($ex:expr) => { + match $ex { + Err(e) => return Poll::Ready(Err(e.into())), + Ok(v) => v, + } + }; +} + /// A frame for stack allocated data. #[derive(Debug)] pub struct ImmediateFrame { diff --git a/src/mux.rs b/src/mux.rs index 09d96bc3d9..a2188036d3 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -31,22 +31,10 @@ use futures::{ready, FutureExt, Sink, SinkExt}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; -use crate::{error::Error, ImmediateFrame}; +use crate::{error::Error, try_ready, ImmediateFrame}; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; -/// Helper macro for returning a `Poll::Ready(Err)` eagerly. -/// -/// Can be remove once `Try` is stabilized for `Poll`. -macro_rules! try_ready { - ($ex:expr) => { - match $ex { - Err(e) => return Poll::Ready(Err(e.into())), - Ok(v) => v, - } - }; -} - /// A frame multiplexer. /// /// A multiplexer is not used directly, but used to spawn multiplexing handles. From 7341bfbad0dab953590787b1a9301590f6b7042b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 14:05:39 +0200 Subject: [PATCH 102/735] Add a `FrameWriter` sink --- src/io.rs | 131 +++++++++++++++++++++++++++++++++++-- src/io/length_delimited.rs | 11 ++-- 2 files changed, 132 insertions(+), 10 deletions(-) diff --git a/src/io.rs b/src/io.rs index 905f7529d3..54a87e1b04 100644 --- a/src/io.rs +++ b/src/io.rs @@ -13,9 +13,11 @@ use std::{ }; use bytes::{Buf, Bytes, BytesMut}; -use futures::{AsyncRead, Stream}; +use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; use thiserror::Error; +use crate::try_ready; + /// Frame decoder. /// /// A frame decoder is responsible for extracting a frame from a reader's internal buffer. @@ -32,7 +34,7 @@ pub trait Decoder { /// Frame encoder. /// /// A frame encoder adds the framing envelope (or replaces the frame entirely) of a given raw frame. -pub trait Encoder { +pub trait Encoder { /// Encoding error. type Error: std::error::Error + Send + Sync + 'static; @@ -47,7 +49,7 @@ pub trait Encoder { /// The resulting `Bytes` should be the bytes to send into the outgoing stream, it must contain /// the information required for an accompanying `Decoder` to be able to reconstruct the frame /// from a raw byte stream. - fn encode_frame(&mut self, raw_frame: Bytes) -> Result; + fn encode_frame(&mut self, raw_frame: F) -> Result; } /// The outcome of a [`decode_frame`] call. @@ -63,11 +65,11 @@ pub enum DecodeResult { Failed(E), } -/// Frame reader for frames. +/// Reader for frames being encoded. pub struct FrameReader { - /// The decoder used to decode frames. + /// Decoder used to decode frames. decoder: D, - /// The underlying async bytestream being read. + /// Underlying async bytestream being read. stream: R, /// Internal buffer for incomplete frames. buffer: BytesMut, @@ -75,6 +77,16 @@ pub struct FrameReader { max_read_buffer_increment: usize, } +/// Writer for frames. +pub struct FrameWriter, W> { + /// The encoder used to encode outgoing frames. + encoder: E, + /// Underlying async bytestream being written. + stream: W, + /// The frame in process of being sent. + current_frame: Option, +} + impl FrameReader { /// Creates a new frame reader on a given stream with the given read buffer increment. pub fn new(decoder: D, stream: R, max_read_buffer_increment: usize) -> Self { @@ -133,3 +145,110 @@ where } } } + +impl FrameWriter +where + E: Encoder, +{ + /// Creates a new frame writer with the given encoder. + pub fn new(encoder: E, stream: W) -> Self { + Self { + encoder, + stream, + current_frame: None, + } + } + + pub fn finish_sending(&mut self, cx: &mut Context<'_>) -> Poll> + where + Self: Sink + Unpin, + F: Buf, + W: AsyncWrite + Unpin, + { + loop { + match self.current_frame { + // No more frame to send, we're ready. + None => return Poll::Ready(Ok(())), + + Some(ref mut current_frame) => { + // TODO: Implement support for `poll_write_vectored`. + + let wpin = Pin::new(&mut self.stream); + match wpin.poll_write(cx, current_frame.chunk()) { + Poll::Ready(Ok(bytes_written)) => { + current_frame.advance(bytes_written); + + // If we're done, clear the current frame and return. + if !current_frame.has_remaining() { + self.current_frame.take(); + return Poll::Ready(Ok(())); + } + + // Otherwise, repeat the loop. + } + // Error occured, we have to abort. + Poll::Ready(Err(error)) => { + return Poll::Ready(Err(error)); + } + // The underlying output stream is blocked, no progress can be made. + Poll::Pending => return Poll::Pending, + } + } + } + } + } +} + +impl Sink for FrameWriter +where + Self: Unpin, + E: Encoder, + F: Buf, + W: AsyncWrite + Unpin, +{ + type Error = io::Error; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + try_ready!(ready!(self_mut.finish_sending(cx))); + + // Even though there may be outstanding writes on the underlying stream, our item buffer is + // empty, so we are ready to accept the next item. + Poll::Ready(Ok(())) + } + + fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + let wrapped_frame = self + .encoder + .encode_frame(item) + .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?; + self.current_frame = Some(wrapped_frame); + + // We could eagler poll and send to the underlying writer here, but for ease of + // implementation we don't. + + Ok(()) + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + // We need to make sure all data is buffered to the underlying stream first. + try_ready!(ready!(self_mut.finish_sending(cx))); + + // Finally it makes sense to flush. + let wpin = Pin::new(&mut self_mut.stream); + wpin.poll_flush(cx) + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + // Finish buffering our outstanding item. + try_ready!(ready!(self_mut.finish_sending(cx))); + + let wpin = Pin::new(&mut self_mut.stream); + wpin.poll_close(cx) + } +} diff --git a/src/io/length_delimited.rs b/src/io/length_delimited.rs index 82fa2dbdd9..5615b4a7f6 100644 --- a/src/io/length_delimited.rs +++ b/src/io/length_delimited.rs @@ -5,7 +5,7 @@ use std::convert::Infallible; -use bytes::{Buf, Bytes, BytesMut}; +use bytes::{Buf, BytesMut}; use thiserror::Error; use crate::ImmediateFrame; @@ -53,11 +53,14 @@ pub struct LengthExceededError(usize); /// The frame type for length prefixed frames. pub type LengthPrefixedFrame = bytes::buf::Chain, F>; -impl Encoder for LengthDelimited { +impl Encoder for LengthDelimited +where + F: Buf + Send + Sync + 'static, +{ type Error = LengthExceededError; - type WrappedFrame = LengthPrefixedFrame; + type WrappedFrame = LengthPrefixedFrame; - fn encode_frame(&mut self, raw_frame: bytes::Bytes) -> Result { + fn encode_frame(&mut self, raw_frame: F) -> Result { let remaining = raw_frame.remaining(); let length: u16 = remaining .try_into() From 37f10ba02cb513817ced08c5ec1925ce7f6c551d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 14:50:11 +0200 Subject: [PATCH 103/735] Add partial `pipe` implementation --- src/pipe.rs | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 src/pipe.rs diff --git a/src/pipe.rs b/src/pipe.rs new file mode 100644 index 0000000000..2e66739777 --- /dev/null +++ b/src/pipe.rs @@ -0,0 +1,179 @@ +//! IO pipes for testing. +//! +//! A pipe writes to an infinite memory buffer and can be used to test async read/write IO. + +use std::{ + collections::VecDeque, + io, + pin::Pin, + sync::{Arc, Mutex, MutexGuard}, + task::{Context, Poll, Waker}, +}; + +use futures::AsyncRead; + +use crate::try_ready; + +/// The read end of a pipe. +#[derive(Debug)] +pub struct ReadEnd { + /// Buffer containing read data. + buffer: Arc>, +} + +/// The write end of a pipe. +#[derive(Debug)] +pub struct WriteEnd { + /// Buffer containing write data. + buffer: Arc>, +} + +/// Innards of a pipe. +#[derive(Debug)] +struct PipeInner { + /// Buffer for data currently in the pipe. + buffer: Option>, + /// Waker for the reader of the pipe. + read_waker: Option, +} + +/// Acquire a guard on a buffer mutex. +fn acquire_lock(buffer: &mut Arc>) -> io::Result> { + match buffer.lock() { + Ok(guard) => Ok(guard), + Err(poisoned) => Err(io::Error::new(io::ErrorKind::Other, poisoned.to_string())), + } +} + +impl Drop for ReadEnd { + fn drop(&mut self) { + let guard = acquire_lock(&mut self.buffer) + .expect("could not acquire lock during drop of `ReadEnd`"); + + guard.buffer.take(); + + if let Some(waker) = guard.read_waker.take() { + waker.wake(); + } + } +} + +impl Drop for WriteEnd { + fn drop(&mut self) { + let guard = acquire_lock(&mut self.buffer) + .expect("could not acquire lock during drop of `ReadEnd`"); + + guard.buffer.take(); + + if let Some(waker) = guard.read_waker.take() { + waker.wake(); + } + } +} + +impl io::Read for ReadEnd { + fn read(&mut self, dest: &mut [u8]) -> io::Result { + let mut guard = acquire_lock(&mut self.buffer)?; + + match *guard { + Some(ref mut buffer) => { + let to_read = buffer.len().min(dest.len()); + + // This is a bit ugly and probably slow, but will have to do for now :( + for (idx, c) in buffer.drain(0..to_read).enumerate() { + dest[idx] = c; + } + + Ok(to_read) + } + // On a closed channel, simply return 0 bytes read. + None => Ok(0), + } + } +} + +impl io::Write for WriteEnd { + fn write(&mut self, buf: &[u8]) -> io::Result { + let mut guard = acquire_lock(&mut self.buffer)?; + + match *guard { + Some(ref mut buffer) => { + buffer.extend(buf); + Ok(buf.len()) + } + None => Err(io::Error::new( + io::ErrorKind::BrokenPipe, + "internal pipe closed", + )), + } + } + + fn flush(&mut self) -> io::Result<()> { + let guard = acquire_lock(&mut self.buffer)?; + + if guard.is_none() { + Err(io::Error::new( + io::ErrorKind::BrokenPipe, + "internal pipe closed", + )) + } else { + Ok(()) + } + } +} + +impl AsyncRead for ReadEnd { + fn poll_read( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + dest: &mut [u8], + ) -> Poll> { + let mut guard = try_ready!(acquire_lock(&mut self.buffer)); + + match *guard { + Some(ref mut buffer) => { + if buffer.is_empty() { + // TODO: Register waker. + Poll::Pending + } else { + let to_read = buffer.len().min(dest.len()); + + // This is a bit ugly and probably slow, but will have to do for now :( + for (idx, c) in buffer.drain(0..to_read).enumerate() { + dest[idx] = c; + } + + Poll::Ready(Ok(to_read)) + } + } + None => Poll::Ready(Ok(0)), + } + } +} + +/// Creates a new synchronous pipe. +/// +/// The resulting pipe will write all data into an infinitely growing memory buffer. All writes will +/// succeed, unless the pipe is closed. Reads will immediately return as much data as is available. +/// +/// Dropping either end of the pipe will close the other end. +pub(crate) fn pipe() -> (ReadEnd, WriteEnd) { + let buffer: Arc> = Default::default(); + let read_end = ReadEnd { + buffer: buffer.clone(), + }; + let write_end = WriteEnd { buffer }; + (read_end, write_end) +} + +#[cfg(test)] +mod tests { + use super::pipe; + + #[test] + fn sync_pipe_works() { + let (mut read_end, mut write_end) = pipe(); + + // let write_end + } +} From 6f187fdf88867219cffacfa9170d10980259e113 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 15:52:29 +0200 Subject: [PATCH 104/735] Complete `pipe` implementation with bugfix and test --- src/lib.rs | 2 + src/pipe.rs | 201 ++++++++++++++++++++++++++++++---------------------- 2 files changed, 117 insertions(+), 86 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 1a708da5b6..d0f35d685c 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -7,6 +7,8 @@ pub mod fixed_size; pub mod io; pub mod length_delimited_io; pub mod mux; +#[cfg(test)] +pub(crate) mod pipe; use bytes::Buf; diff --git a/src/pipe.rs b/src/pipe.rs index 2e66739777..8872e77aa8 100644 --- a/src/pipe.rs +++ b/src/pipe.rs @@ -10,7 +10,7 @@ use std::{ task::{Context, Poll, Waker}, }; -use futures::AsyncRead; +use futures::{AsyncRead, AsyncWrite}; use crate::try_ready; @@ -18,28 +18,30 @@ use crate::try_ready; #[derive(Debug)] pub struct ReadEnd { /// Buffer containing read data. - buffer: Arc>, + inner: Arc>, } /// The write end of a pipe. #[derive(Debug)] pub struct WriteEnd { /// Buffer containing write data. - buffer: Arc>, + inner: Arc>, } /// Innards of a pipe. -#[derive(Debug)] +#[derive(Debug, Default)] struct PipeInner { /// Buffer for data currently in the pipe. - buffer: Option>, + buffer: VecDeque, + /// Whether or not the pipe has been closed. + closed: bool, /// Waker for the reader of the pipe. read_waker: Option, } /// Acquire a guard on a buffer mutex. -fn acquire_lock(buffer: &mut Arc>) -> io::Result> { - match buffer.lock() { +fn acquire_lock(inner: &mut Arc>) -> io::Result> { + match inner.lock() { Ok(guard) => Ok(guard), Err(poisoned) => Err(io::Error::new(io::ErrorKind::Other, poisoned.to_string())), } @@ -47,10 +49,10 @@ fn acquire_lock(buffer: &mut Arc>) -> io::Result io::Result { - let mut guard = acquire_lock(&mut self.buffer)?; - - match *guard { - Some(ref mut buffer) => { - let to_read = buffer.len().min(dest.len()); - - // This is a bit ugly and probably slow, but will have to do for now :( - for (idx, c) in buffer.drain(0..to_read).enumerate() { - dest[idx] = c; - } +impl AsyncRead for ReadEnd { + fn poll_read( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + dest: &mut [u8], + ) -> Poll> { + let mut inner = try_ready!(acquire_lock(&mut self.inner)); + + if inner.buffer.is_empty() { + if inner.closed { + Poll::Ready(Ok(0)) + } else { + inner.read_waker = Some(cx.waker().clone()); + Poll::Pending + } + } else { + let to_read = inner.buffer.len().min(dest.len()); - Ok(to_read) + // This is a bit ugly and probably slow, but will have to do for now :( + for (idx, c) in inner.buffer.drain(0..to_read).enumerate() { + dest[idx] = c; } - // On a closed channel, simply return 0 bytes read. - None => Ok(0), + + Poll::Ready(Ok(to_read)) } } } -impl io::Write for WriteEnd { - fn write(&mut self, buf: &[u8]) -> io::Result { - let mut guard = acquire_lock(&mut self.buffer)?; +impl AsyncWrite for WriteEnd { + fn poll_write( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + source: &[u8], + ) -> Poll> { + let mut guard = try_ready!(acquire_lock(&mut self.get_mut().inner)); - match *guard { - Some(ref mut buffer) => { - buffer.extend(buf); - Ok(buf.len()) - } - None => Err(io::Error::new( + if guard.closed { + return Poll::Ready(Err(io::Error::new( io::ErrorKind::BrokenPipe, - "internal pipe closed", - )), + "async testing pipe closed", + ))); } - } - fn flush(&mut self) -> io::Result<()> { - let guard = acquire_lock(&mut self.buffer)?; + guard.buffer.extend(source); - if guard.is_none() { - Err(io::Error::new( - io::ErrorKind::BrokenPipe, - "internal pipe closed", - )) - } else { - Ok(()) + if let Some(waker) = guard.read_waker.take() { + waker.wake(); } + + Poll::Ready(Ok(source.len())) } -} -impl AsyncRead for ReadEnd { - fn poll_read( - mut self: Pin<&mut Self>, - cx: &mut Context<'_>, - dest: &mut [u8], - ) -> Poll> { - let mut guard = try_ready!(acquire_lock(&mut self.buffer)); - - match *guard { - Some(ref mut buffer) => { - if buffer.is_empty() { - // TODO: Register waker. - Poll::Pending - } else { - let to_read = buffer.len().min(dest.len()); - - // This is a bit ugly and probably slow, but will have to do for now :( - for (idx, c) in buffer.drain(0..to_read).enumerate() { - dest[idx] = c; - } - - Poll::Ready(Ok(to_read)) - } - } - None => Poll::Ready(Ok(0)), + fn poll_flush(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + // Poll will never have any effect, so we do not need to wake anyone. + + Poll::Ready(Ok(())) + } + + fn poll_close(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + let mut guard = try_ready!(acquire_lock(&mut self.get_mut().inner)); + + guard.closed = true; + if let Some(waker) = guard.read_waker.take() { + waker.wake(); } + + Poll::Ready(Ok(())) } } -/// Creates a new synchronous pipe. +/// Creates a new asynchronous pipe. /// /// The resulting pipe will write all data into an infinitely growing memory buffer. All writes will -/// succeed, unless the pipe is closed. Reads will immediately return as much data as is available. +/// succeed, unless the pipe is closed. Reads will immediately return as much data as is available +/// and be properly woken up if more data is required. /// -/// Dropping either end of the pipe will close the other end. -pub(crate) fn pipe() -> (ReadEnd, WriteEnd) { - let buffer: Arc> = Default::default(); +/// Dropping either end of the pipe will close it, causing writes to return broken pipe errors and +/// reads to return successful 0-byte reads. +pub(crate) fn pipe() -> (WriteEnd, ReadEnd) { + let inner: Arc> = Default::default(); let read_end = ReadEnd { - buffer: buffer.clone(), + inner: inner.clone(), }; - let write_end = WriteEnd { buffer }; - (read_end, write_end) + let write_end = WriteEnd { inner }; + (write_end, read_end) } #[cfg(test)] mod tests { + use futures::{AsyncReadExt, AsyncWriteExt, FutureExt}; + use super::pipe; #[test] - fn sync_pipe_works() { - let (mut read_end, mut write_end) = pipe(); + fn async_pipe_works() { + let (mut write_end, mut read_end) = pipe(); + + assert!(read_end + .read_to_end(&mut Vec::new()) + .now_or_never() + .is_none()); + + write_end.write_all(b"one").now_or_never().unwrap().unwrap(); + write_end.write_all(b"two").now_or_never().unwrap().unwrap(); + + let mut buf = [0; 5]; + read_end + .read_exact(&mut buf) + .now_or_never() + .unwrap() + .unwrap(); + + assert_eq!(&buf, b"onetw"); + + let mut remainder: Vec = Vec::new(); + + write_end + .write_all(b"three") + .now_or_never() + .unwrap() + .unwrap(); + + write_end.close().now_or_never().unwrap().unwrap(); + + read_end + .read_to_end(&mut remainder) + .now_or_never() + .unwrap() + .unwrap(); - // let write_end + assert_eq!(remainder, b"othree"); } } From e381744ff2fb9dc20aeccd626703f47b88097540 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 17:25:10 +0200 Subject: [PATCH 105/735] Remove old `length_delimited` module, in favor of `io` --- src/chunked.rs | 12 +- src/io.rs | 2 +- src/length_delimited_io.rs | 2 - src/length_delimited_io/reader.rs | 197 ------------------------------ src/length_delimited_io/writer.rs | 52 -------- src/lib.rs | 47 ++++--- 6 files changed, 30 insertions(+), 282 deletions(-) delete mode 100644 src/length_delimited_io.rs delete mode 100644 src/length_delimited_io/reader.rs delete mode 100644 src/length_delimited_io/writer.rs diff --git a/src/chunked.rs b/src/chunked.rs index 9a3b1d5007..633fadec02 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -4,7 +4,7 @@ //! continuation byte, which is `0x00` if more chunks are following, `0xFF` if this is the frame's //! last chunk. -use std::{future, num::NonZeroUsize}; +use std::{future, io, num::NonZeroUsize}; use bytes::{Buf, BufMut, Bytes, BytesMut}; use futures::{ @@ -51,16 +51,16 @@ pub fn chunk_frame( /// Generates the "fragmentizer", i.e: an object that when given the source stream of bytes will yield single chunks. #[allow(unused)] pub(crate) fn make_fragmentizer( - source: S, + sink: S, fragment_size: NonZeroUsize, -) -> impl Sink> +) -> impl Sink where E: std::error::Error, - S: Sink>, + S: Sink, { - source.with_flat_map(move |frame: Bytes| { + sink.with_flat_map(move |frame: Bytes| { let chunk_iter = chunk_frame(frame, fragment_size).expect("TODO: Handle error"); - stream::iter(chunk_iter.map(Result::<_, Error>::Ok)) + stream::iter(chunk_iter.map(Result::<_, _>::Ok)) }) } diff --git a/src/io.rs b/src/io.rs index 54a87e1b04..6609be2136 100644 --- a/src/io.rs +++ b/src/io.rs @@ -4,7 +4,7 @@ //! reading them from `AsyncRead`. They can be given a flexible function to encode and decode //! frames. -mod length_delimited; +pub mod length_delimited; use std::{ io, diff --git a/src/length_delimited_io.rs b/src/length_delimited_io.rs deleted file mode 100644 index c9134a0edb..0000000000 --- a/src/length_delimited_io.rs +++ /dev/null @@ -1,2 +0,0 @@ -pub mod reader; -pub mod writer; diff --git a/src/length_delimited_io/reader.rs b/src/length_delimited_io/reader.rs deleted file mode 100644 index fcf823f0f0..0000000000 --- a/src/length_delimited_io/reader.rs +++ /dev/null @@ -1,197 +0,0 @@ -//! Length-prefixed frame reading -//! -//! A reader that decodes an incoming stream of length delimited frames into separate frames. Each -//! frame is expected to be prefixed with two bytes representing its length. - -use std::{io, pin::Pin, task::Poll}; - -use bytes::{Buf, Bytes, BytesMut}; -use futures::{AsyncRead, Stream}; - -/// Lenght of the prefix that describes the length of the following frame. -const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); - -/// Frame reader for length prefixed frames. -pub struct FrameReader { - /// The underlying async bytestream being read. - stream: R, - /// Internal buffer for incomplete frames. - buffer: BytesMut, - /// Maximum size of a single read call. - buffer_increment: u16, -} - -impl FrameReader { - /// Creates a new frame reader on a given stream with the given read buffer increment. - pub fn new(stream: R, buffer_increment: u16) -> Self { - Self { - stream, - buffer: BytesMut::new(), - buffer_increment, - } - } -} - -/// Extracts a length delimited frame from a given buffer. -/// -/// If a frame is found, it is split off from the buffer and returned. -fn length_delimited_frame(buffer: &mut BytesMut) -> Option { - let bytes_in_buffer = buffer.remaining(); - if bytes_in_buffer < LENGTH_MARKER_SIZE { - return None; - } - let data_length = u16::from_le_bytes( - buffer[0..LENGTH_MARKER_SIZE] - .try_into() - .expect("any two bytes should be parseable to u16"), - ) as usize; - - let end = LENGTH_MARKER_SIZE + data_length; - - if bytes_in_buffer < end { - return None; - } - - let mut full_frame = buffer.split_to(end); - let _ = full_frame.get_u16_le(); - - Some(full_frame) -} - -impl Stream for FrameReader -where - R: AsyncRead + Unpin, -{ - type Item = io::Result; - - fn poll_next( - self: Pin<&mut Self>, - cx: &mut std::task::Context<'_>, - ) -> Poll> { - let FrameReader { - ref mut stream, - ref mut buffer, - buffer_increment, - } = self.get_mut(); - loop { - match length_delimited_frame(buffer) { - Some(frame) => return Poll::Ready(Some(Ok(frame.freeze()))), - None => { - let start = buffer.len(); - let end = start + *buffer_increment as usize; - buffer.resize(end, 0x00); - - match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { - Poll::Ready(Ok(bytes_read)) => { - buffer.truncate(start + bytes_read); - if bytes_read == 0 { - return Poll::Ready(None); - } - } - Poll::Ready(Err(err)) => return Poll::Ready(Some(Err(err))), - Poll::Pending => return Poll::Pending, - } - } - } - } - } -} - -#[cfg(test)] -mod tests { - use bytes::{Buf, BufMut, BytesMut}; - - use crate::{length_delimited_io::reader::FrameReader, tests::collect_stream_results}; - - use super::length_delimited_frame; - - // In tests use small value to make sure that we correctly merge data that was polled from the - // stream in small chunks. - const TESTING_BUFFER_INCREMENT: u16 = 4; - - #[test] - fn produces_fragments_from_stream() { - let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; - let expected = vec![ - b"\x00ABCDE".to_vec(), - b"\x00FGHIJ".to_vec(), - b"\xffKL".to_vec(), - b"\xffM".to_vec(), - ]; - - let defragmentizer = FrameReader::new(stream, TESTING_BUFFER_INCREMENT); - - assert_eq!(expected, collect_stream_results(defragmentizer)); - } - - #[test] - fn extracts_length_delimited_frame() { - let mut stream = BytesMut::from(&b"\x05\x00ABCDE\x05\x00FGHIJ\x02\x00KL\x01\x00M"[..]); - let frame = length_delimited_frame(&mut stream).unwrap(); - - assert_eq!(frame, "ABCDE"); - assert_eq!(stream, b"\x05\x00FGHIJ\x02\x00KL\x01\x00M"[..]); - } - - #[test] - fn extracts_length_delimited_frame_single_frame() { - let mut stream = BytesMut::from(&b"\x01\x00X"[..]); - let frame = length_delimited_frame(&mut stream).unwrap(); - - assert_eq!(frame, "X"); - assert!(stream.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_empty_buffer() { - let mut stream = BytesMut::from(&b""[..]); - let opt_frame = length_delimited_frame(&mut stream); - - assert!(opt_frame.is_none()); - assert!(stream.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_incomplete_length_in_buffer() { - let mut stream = BytesMut::from(&b"A"[..]); - let opt_frame = length_delimited_frame(&mut stream); - - assert!(opt_frame.is_none()); - assert_eq!(stream, b"A"[..]); - } - - #[test] - fn extracts_length_delimited_frame_incomplete_data_in_buffer() { - let mut stream = BytesMut::from(&b"\xff\xffABCD"[..]); - let opt_frame = length_delimited_frame(&mut stream); - - assert!(opt_frame.is_none()); - assert_eq!(stream, b"\xff\xffABCD"[..]); - } - - #[test] - fn extracts_length_delimited_frame_only_length_in_buffer() { - let mut stream = BytesMut::from(&b"\xff\xff"[..]); - let opt_frame = length_delimited_frame(&mut stream); - - assert!(opt_frame.is_none()); - assert_eq!(stream, b"\xff\xff"[..]); - } - - #[test] - fn extracts_length_delimited_frame_max_size() { - let mut stream = BytesMut::from(&b"\xff\xff"[..]); - for _ in 0..u16::MAX { - stream.put_u8(50); - } - let mut frame = length_delimited_frame(&mut stream).unwrap(); - - assert_eq!(frame.remaining(), u16::MAX as usize); - for _ in 0..u16::MAX { - let byte = frame.get_u8(); - assert_eq!(byte, 50); - } - - assert!(stream.is_empty()); - } -} diff --git a/src/length_delimited_io/writer.rs b/src/length_delimited_io/writer.rs deleted file mode 100644 index e2a536405f..0000000000 --- a/src/length_delimited_io/writer.rs +++ /dev/null @@ -1,52 +0,0 @@ -//! Length prefixed chunking. -//! -//! Prefixes frames with their length, which is hard coded at 16 bit little endian ints. - -use bytes::Buf; - -use crate::{error::Error, ImmediateFrame}; - -/// A frame that has had a length prefix added. -pub type LengthPrefixedFrame = bytes::buf::Chain, F>; - -/// Adds a length prefix to the given frame. -pub fn frame_add_length_prefix( - frame: F, -) -> Result, Error> { - let remaining = frame.remaining(); - let length: u16 = remaining.try_into().map_err(|_err| Error::FrameTooLong { - actual: remaining, - max: u16::MAX as usize, - })?; - Ok(ImmediateFrame::from(length).chain(frame)) -} - -#[cfg(test)] -mod tests { - use std::convert::Infallible; - - use crate::{error::Error, tests::collect_buf}; - - use super::frame_add_length_prefix; - - #[test] - fn length_prefixing_of_single_frame_works() { - let frame = &b"abcdefg"[..]; - let prefixed = frame_add_length_prefix::<_, Infallible>(frame).expect("prefixing failed"); - - let output = collect_buf(prefixed); - assert_eq!(output, b"\x07\x00abcdefg"); - } - - #[test] - fn large_frames_reject() { - let frame = [0; 1024 * 1024]; - let result = frame_add_length_prefix::<_, Infallible>(&frame[..]); - - assert!(matches!( - result, - Err(Error::FrameTooLong { actual, max }) - if actual == frame.len() && max == u16::MAX as usize - )) - } -} diff --git a/src/lib.rs b/src/lib.rs index d0f35d685c..ddbc5c87f7 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -5,7 +5,6 @@ pub mod chunked; pub mod error; pub mod fixed_size; pub mod io; -pub mod length_delimited_io; pub mod mux; #[cfg(test)] pub(crate) mod pipe; @@ -138,18 +137,19 @@ pub(crate) mod tests { }; use bytes::{Buf, Bytes}; - use futures::{future, FutureExt, Sink, SinkExt, Stream, StreamExt}; + use futures::{future, AsyncReadExt, FutureExt, Sink, SinkExt, Stream, StreamExt}; use tokio_util::sync::PollSender; use crate::{ chunked::{make_defragmentizer, make_fragmentizer}, - length_delimited_io::{reader::FrameReader, writer::frame_add_length_prefix}, + io::{length_delimited::LengthDelimited, FrameReader, FrameWriter}, + pipe::pipe, }; // In tests use small value so that we make sure that // we correctly merge data that was polled from // the stream in small chunks. - const BUFFER_INCREMENT: u16 = 4; + const BUFFER_INCREMENT: usize = 4; /// Collects everything inside a `Buf` into a `Vec`. pub fn collect_buf(buf: B) -> Vec { @@ -452,13 +452,14 @@ pub(crate) mod tests { /// Test an "end-to-end" instance of the assembled pipeline for sending. #[test] fn chunked_length_prefixed_sink() { - let (tx, mut rx) = tokio::sync::mpsc::channel(10); - let poll_sender = PollSender::new(tx); + let (tx, rx) = pipe(); - let mut chunked_sink = make_fragmentizer( - poll_sender.with(|frame| future::ready(frame_add_length_prefix(frame))), - NonZeroUsize::new(5).unwrap(), - ); + let frame_writer = FrameWriter::new(LengthDelimited, tx); + let mut chunked_sink = + make_fragmentizer::<_, Infallible>(frame_writer, NonZeroUsize::new(5).unwrap()); + + let frame_reader = FrameReader::new(LengthDelimited, rx, BUFFER_INCREMENT); + let chunked_reader = make_defragmentizer(frame_reader); let sample_data = Bytes::from(&b"QRSTUV"[..]); @@ -468,24 +469,21 @@ pub(crate) mod tests { .unwrap() .expect("send failed"); + // Drop the sink, to ensure it is closed. drop(chunked_sink); - let chunks: Vec<_> = std::iter::from_fn(move || rx.blocking_recv()) - .map(collect_buf) - .collect(); + let round_tripped: Vec<_> = chunked_reader.collect().now_or_never().unwrap(); - assert_eq!( - chunks, - vec![b"\x06\x00\x00QRSTU".to_vec(), b"\x02\x00\xffV".to_vec()] - ) + assert_eq!(round_tripped, &[&b"QRSTUV"[..]]) } #[test] - fn stream_to_message() { - let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; + fn from_bytestream_to_frame() { + let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let defragmentizer = make_defragmentizer(FrameReader::new(stream, BUFFER_INCREMENT)); + let defragmentizer = + make_defragmentizer(FrameReader::new(LengthDelimited, input, BUFFER_INCREMENT)); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!( @@ -495,11 +493,12 @@ pub(crate) mod tests { } #[test] - fn stream_to_multiple_messages() { - let stream = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; - let expected = vec!["ABCDEFGHIJKL", "SINGLE_CHUNK", "CRUMBS"]; + fn from_bytestream_to_multiple_frames() { + let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; + let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_CHUNK", b"CRUMBS"]; - let defragmentizer = make_defragmentizer(FrameReader::new(stream, BUFFER_INCREMENT)); + let defragmentizer = + make_defragmentizer(FrameReader::new(LengthDelimited, input, BUFFER_INCREMENT)); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); From ab9bdeb2aa7df283203002e8f3e710f6685031b6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Mon, 13 Jun 2022 17:55:55 +0200 Subject: [PATCH 106/735] Apply many small suggestions from code review from @rafal-ch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-authored-by: Rafał Chabowski <88321181+rafal-ch@users.noreply.github.com> --- src/fixed_size.rs | 2 +- src/lib.rs | 6 +++--- src/mux.rs | 10 +++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/src/fixed_size.rs b/src/fixed_size.rs index f7fb6202ab..ab005b88fd 100644 --- a/src/fixed_size.rs +++ b/src/fixed_size.rs @@ -1,6 +1,6 @@ //! Immediate (small/fixed size) item sink and stream. //! -//! `ImmediateSink` allows sending items for which `Into>` is +//! `ImmediateSink` allows sending items for which `Into>` is //! implemented. Typically this is true for small atomic types like `u32`, which are encoded as //! little endian in throughout this crate. //! diff --git a/src/lib.rs b/src/lib.rs index 7d4d900dba..3d1c9d912b 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -162,7 +162,7 @@ pub(crate) mod tests { /// Inserts or removes the clog from the sink. pub fn set_clogged(&self, clogged: bool) { - let mut guard = self.obstruction.lock().expect("could not lock plug"); + let mut guard = self.obstruction.lock().expect("could not lock clog"); guard.clogged = clogged; // Notify any waiting tasks that there may be progress to be made. @@ -187,7 +187,7 @@ pub(crate) mod tests { /// /// Will update the local waker reference. pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("could not lock plug"); + let mut guard = self.obstruction.lock().expect("could not lock clog"); guard.waker = Some(cx.waker().clone()); guard.clogged @@ -358,7 +358,7 @@ pub(crate) mod tests { } #[tokio::test] - async fn ensure_sink_wakes_up_after_plugging_in() { + async fn waiting_tasks_can_progress_upon_unplugging_the_sink() { let sink = Arc::new(TestingSink::new()); sink.set_plugged(true); diff --git a/src/mux.rs b/src/mux.rs index 09d96bc3d9..5dc1ad5904 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -37,7 +37,7 @@ pub type ChannelPrefixedFrame = bytes::buf::Chain, F> /// Helper macro for returning a `Poll::Ready(Err)` eagerly. /// -/// Can be remove once `Try` is stabilized for `Poll`. +/// Can be removed once `Try` is stabilized for `Poll`. macro_rules! try_ready { ($ex:expr) => { match $ex { @@ -72,7 +72,7 @@ impl Multiplexer { /// /// # Correctness and cancellation safety /// - /// Since a handle may hold a lock on the share sink, additional invariants that must be upheld + /// Since a handle may hold a lock on the shared sink, additional invariants that must be upheld /// by the calling tasks: /// /// * Every call to `Sink::poll_ready` returning `Poll::Pending` **must** be repeated until @@ -176,7 +176,7 @@ where /// /// * If the lock is already obtained, returns `Ready(guard)`. /// * If the lock has not been obtained, attempts to poll the locking future, either returning - /// `Pending` or `Ready(guad)`. + /// `Pending` or `Ready(guard)`. fn acquire_lock(&mut self, cx: &mut Context<'_>) -> Poll<&mut SinkGuard> { let sink_guard = match self.sink_guard { None => { @@ -376,7 +376,7 @@ mod tests { muxer.into_inner(); let outcome = chan_0 - .send(Bytes::from(&b"Seceond"[..])) + .send(Bytes::from(&b"Second"[..])) .now_or_never() .unwrap() .unwrap_err(); @@ -449,7 +449,7 @@ mod tests { // Unclog, this causes the first write to finish and others to follow. sink.set_clogged(false); - // Both should finish with the unclogged sink. + // All should finish with the unclogged sink. send_2.await.unwrap(); send_0.await.unwrap(); send_1.await.unwrap(); From 02fd5831c9ed2d67d1d982a8e5c7d0f0012efbfc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 17:57:39 +0200 Subject: [PATCH 107/735] Improve poison error message as suggested by @rafal-ch --- src/lib.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 3d1c9d912b..1dfe0af950 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -149,7 +149,7 @@ pub(crate) mod tests { /// Inserts or removes the plug from the sink. pub fn set_plugged(&self, plugged: bool) { - let mut guard = self.obstruction.lock().expect("could not lock plug"); + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); guard.plugged = plugged; // Notify any waiting tasks that there may be progress to be made. @@ -162,7 +162,7 @@ pub(crate) mod tests { /// Inserts or removes the clog from the sink. pub fn set_clogged(&self, clogged: bool) { - let mut guard = self.obstruction.lock().expect("could not lock clog"); + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); guard.clogged = clogged; // Notify any waiting tasks that there may be progress to be made. @@ -177,7 +177,7 @@ pub(crate) mod tests { /// /// Will update the local waker reference. pub fn is_plugged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("could not lock plug"); + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); guard.waker = Some(cx.waker().clone()); guard.plugged @@ -187,7 +187,7 @@ pub(crate) mod tests { /// /// Will update the local waker reference. pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("could not lock clog"); + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); guard.waker = Some(cx.waker().clone()); guard.clogged From 276618ddb8bf6ac1c3d11b8c0abc9e69b3ca1741 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Jun 2022 18:00:03 +0200 Subject: [PATCH 108/735] Add short explanation about the purpose of `waiting_tasks_can_progress_upon_unplugging_the_sink` --- src/lib.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/src/lib.rs b/src/lib.rs index 1dfe0af950..0ddf1751cf 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -357,6 +357,7 @@ pub(crate) mod tests { assert_eq!(sink.get_contents(), b"firstsecondthird"); } + /// Verifies that when a sink is clogged but later unclogged, any waiters on it are woken up. #[tokio::test] async fn waiting_tasks_can_progress_upon_unplugging_the_sink() { let sink = Arc::new(TestingSink::new()); From 873aa826a872f3cbb694c5303cf948d80685f514 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 14 Jun 2022 17:48:20 +0200 Subject: [PATCH 109/735] Add small test for multiple handles to the same channel, as suggested by @rafal-ch --- src/mux.rs | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/mux.rs b/src/mux.rs index 5dc1ad5904..cb2330e20f 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -457,4 +457,20 @@ mod tests { // The final result should be in order. assert_eq!(sink.get_contents(), b"\x00zero\x01one\x02two"); } + + #[test] + fn multiple_handles_same_channel() { + let sink = Arc::new(TestingSink::new()); + let muxer = Multiplexer::new(sink.clone().into_ref()); + + let mut h0 = muxer.create_channel_handle(0); + let mut h1 = muxer.create_channel_handle(0); + let mut h2 = muxer.create_channel_handle(0); + + assert!(h1.send(Bytes::from(&b"One"[..])).now_or_never().is_some()); + assert!(h0.send(Bytes::from(&b"Two"[..])).now_or_never().is_some()); + assert!(h2.send(Bytes::from(&b"Three"[..])).now_or_never().is_some()); + + assert_eq!(sink.get_contents(), b"\x00One\x00Two\x00Three"); + } } From 70d427d3a275c3c5db69f0d08487af01606aaf85 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Jun 2022 11:41:35 +0200 Subject: [PATCH 110/735] Write a macro for repetitive prefix implementations --- src/lib.rs | 63 +++++++++++++++++------------------------------------- 1 file changed, 20 insertions(+), 43 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 070e9534c1..89fc2510e3 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -39,53 +39,30 @@ impl ImmediateFrame { } } -impl From for ImmediateFrame<[u8; 1]> { - #[inline] - fn from(value: u8) -> Self { - ImmediateFrame::new(value.to_le_bytes()) - } -} - -impl From for ImmediateFrame<[u8; 2]> { - #[inline] - fn from(value: u16) -> Self { - ImmediateFrame::new(value.to_le_bytes()) - } -} - -impl From for ImmediateFrame<[u8; 4]> { - #[inline] - fn from(value: u32) -> Self { - ImmediateFrame::new(value.to_le_bytes()) - } -} - -impl FromFixedSize for u8 { - const WIRE_SIZE: usize = 1; - - fn from_slice(slice: &[u8]) -> Option { - match *slice { - [v] => Some(v), - _ => None, +/// Implements conversion functions to immediate types for atomics like `u8`, etc. +macro_rules! impl_immediate_frame_le { + ($t:ty) => { + impl FromFixedSize for $t { + // TODO: Consider hardcoding size if porting to really weird platforms. + const WIRE_SIZE: usize = std::mem::size_of::<$t>(); + + fn from_slice(slice: &[u8]) -> Option { + Some(<$t>::from_le_bytes(slice.try_into().ok()?)) + } } - } -} - -impl FromFixedSize for u16 { - const WIRE_SIZE: usize = 2; - fn from_slice(slice: &[u8]) -> Option { - Some(u16::from_le_bytes(slice.try_into().ok()?)) - } + impl From<$t> for ImmediateFrame<[u8; ::std::mem::size_of::<$t>()]> { + #[inline] + fn from(value: $t) -> Self { + ImmediateFrame::new(value.to_le_bytes()) + } + } + }; } -impl FromFixedSize for u32 { - const WIRE_SIZE: usize = 4; - - fn from_slice(slice: &[u8]) -> Option { - Some(u32::from_le_bytes(slice.try_into().ok()?)) - } -} +impl_immediate_frame_le!(u8); +impl_immediate_frame_le!(u16); +impl_immediate_frame_le!(u32); impl Buf for ImmediateFrame where From 823f4010b7499caa53f205b854bc5fb0b38e0cb3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Wed, 15 Jun 2022 11:42:40 +0200 Subject: [PATCH 111/735] Apply suggestions from code review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-authored-by: Rafał Chabowski <88321181+rafal-ch@users.noreply.github.com> --- src/fixed_size.rs | 4 ++-- src/lib.rs | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/fixed_size.rs b/src/fixed_size.rs index b89632b054..951cfbd144 100644 --- a/src/fixed_size.rs +++ b/src/fixed_size.rs @@ -38,7 +38,7 @@ pub struct ImmediateStream { _type: PhantomData, } -/// Error occuring during immediate stream reading. +/// Error occurring during immediate stream reading. #[derive(Debug, Error)] pub enum ImmediateStreamError { /// The incoming frame was of the wrong size. @@ -103,7 +103,7 @@ where match ready!(self_mut.stream.poll_next_unpin(cx)) { Some(frame) => { - let slice = AsRef::<[u8]>::as_ref(&frame); + let slice: &[u8] = &frame; Poll::Ready(Some(T::from_slice(slice).ok_or({ ImmediateStreamError::WrongSize { diff --git a/src/lib.rs b/src/lib.rs index 89fc2510e3..7505b10b38 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -25,7 +25,7 @@ pub struct ImmediateFrame { pub trait FromFixedSize: Sized { /// The size of the type on the wire. /// - /// `from_slice` expected its input argument to be of this length. + /// `from_slice` expects its input argument to be of this length. const WIRE_SIZE: usize; /// Try to reconstruct a type from a slice of bytes. From 4e26564d1a6e2021a073a2a01b1cb42a5563f858 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Jun 2022 11:44:38 +0200 Subject: [PATCH 112/735] Fix warnings in remaining code --- src/lib.rs | 3 +-- src/pipe.rs | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index ce640b9142..cd9b936a12 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -114,8 +114,7 @@ pub(crate) mod tests { }; use bytes::{Buf, Bytes}; - use futures::{future, AsyncReadExt, FutureExt, Sink, SinkExt, Stream, StreamExt}; - use tokio_util::sync::PollSender; + use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; use crate::{ chunked::{make_defragmentizer, make_fragmentizer}, diff --git a/src/pipe.rs b/src/pipe.rs index 8872e77aa8..263984dda5 100644 --- a/src/pipe.rs +++ b/src/pipe.rs @@ -104,7 +104,7 @@ impl AsyncRead for ReadEnd { impl AsyncWrite for WriteEnd { fn poll_write( self: Pin<&mut Self>, - cx: &mut Context<'_>, + _cx: &mut Context<'_>, source: &[u8], ) -> Poll> { let mut guard = try_ready!(acquire_lock(&mut self.get_mut().inner)); From 939f55b07804964bd0777f0dec38d686185a41ca Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 29 Jun 2022 13:27:22 +0200 Subject: [PATCH 113/735] Address review comments regarding naming, comments and spelling --- src/io.rs | 13 ++++++++----- src/lib.rs | 18 ++++++++++++------ 2 files changed, 20 insertions(+), 11 deletions(-) diff --git a/src/io.rs b/src/io.rs index 6609be2136..229833392c 100644 --- a/src/io.rs +++ b/src/io.rs @@ -1,6 +1,6 @@ //! Frame reading and writing //! -//! Frame readers and writers are responsible for writing a [`Bytes`] frame to a an `AsyncWrite`, or +//! Frame readers and writers are responsible for writing a [`Bytes`] frame to an `AsyncWrite`, or //! reading them from `AsyncRead`. They can be given a flexible function to encode and decode //! frames. @@ -27,7 +27,10 @@ pub trait Decoder { /// Decodes a frame from a buffer. /// - /// If `buffer` contains enough + /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for + /// details. + /// + /// Implementers of this function are expected to remove completed frames from `buffer`. fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; } @@ -173,8 +176,8 @@ where Some(ref mut current_frame) => { // TODO: Implement support for `poll_write_vectored`. - let wpin = Pin::new(&mut self.stream); - match wpin.poll_write(cx, current_frame.chunk()) { + let stream_pin = Pin::new(&mut self.stream); + match stream_pin.poll_write(cx, current_frame.chunk()) { Poll::Ready(Ok(bytes_written)) => { current_frame.advance(bytes_written); @@ -225,7 +228,7 @@ where .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?; self.current_frame = Some(wrapped_frame); - // We could eagler poll and send to the underlying writer here, but for ease of + // We could eaglerly poll and send to the underlying writer here, but for ease of // implementation we don't. Ok(()) diff --git a/src/lib.rs b/src/lib.rs index cd9b936a12..4741a0c0c3 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -125,7 +125,7 @@ pub(crate) mod tests { // In tests use small value so that we make sure that // we correctly merge data that was polled from // the stream in small chunks. - const BUFFER_INCREMENT: usize = 4; + const TESTING_BUFFER_INCREMENT: usize = 4; /// Collects everything inside a `Buf` into a `Vec`. pub fn collect_buf(buf: B) -> Vec { @@ -435,7 +435,7 @@ pub(crate) mod tests { let mut chunked_sink = make_fragmentizer::<_, Infallible>(frame_writer, NonZeroUsize::new(5).unwrap()); - let frame_reader = FrameReader::new(LengthDelimited, rx, BUFFER_INCREMENT); + let frame_reader = FrameReader::new(LengthDelimited, rx, TESTING_BUFFER_INCREMENT); let chunked_reader = make_defragmentizer(frame_reader); let sample_data = Bytes::from(&b"QRSTUV"[..]); @@ -459,8 +459,11 @@ pub(crate) mod tests { let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; let expected = "ABCDEFGHIJKL"; - let defragmentizer = - make_defragmentizer(FrameReader::new(LengthDelimited, input, BUFFER_INCREMENT)); + let defragmentizer = make_defragmentizer(FrameReader::new( + LengthDelimited, + input, + TESTING_BUFFER_INCREMENT, + )); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!( @@ -474,8 +477,11 @@ pub(crate) mod tests { let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_CHUNK", b"CRUMBS"]; - let defragmentizer = - make_defragmentizer(FrameReader::new(LengthDelimited, input, BUFFER_INCREMENT)); + let defragmentizer = make_defragmentizer(FrameReader::new( + LengthDelimited, + input, + TESTING_BUFFER_INCREMENT, + )); let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); assert_eq!(expected, messages); From eb3f8f2415fc42ccd22d5fc5204c5214a6739b52 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 29 Jun 2022 14:57:29 +0200 Subject: [PATCH 114/735] Rename `chunk` to `fragment` --- src/chunked.rs | 90 +++++++++++++++++++------------------- src/io/length_delimited.rs | 2 +- src/lib.rs | 21 +++++---- 3 files changed, 56 insertions(+), 57 deletions(-) diff --git a/src/chunked.rs b/src/chunked.rs index 633fadec02..69830f6bb8 100644 --- a/src/chunked.rs +++ b/src/chunked.rs @@ -1,8 +1,8 @@ -//! Chunks frames into pieces. +//! Splits frames into fragments. //! -//! The wire format for chunks is `NCCC...` where `CCC...` is the data chunk and `N` is the -//! continuation byte, which is `0x00` if more chunks are following, `0xFF` if this is the frame's -//! last chunk. +//! The wire format for fragments is `NCCC...` where `CCC...` is the data fragment and `N` is the +//! continuation byte, which is `0x00` if more fragments are following, `0xFF` if this is the frame's +//! last fragment. use std::{future, io, num::NonZeroUsize}; @@ -14,41 +14,41 @@ use futures::{ use crate::{error::Error, ImmediateFrame}; -pub type SingleChunk = bytes::buf::Chain, Bytes>; +pub type SingleFragment = bytes::buf::Chain, Bytes>; -/// Indicator that more chunks are following. -const MORE_CHUNKS: u8 = 0x00; +/// Indicator that more fragments are following. +const MORE_FRAGMENT: u8 = 0x00; -/// Final chunk indicator. -const FINAL_CHUNK: u8 = 0xFF; +/// Final fragment indicator. +const FINAL_FRAGMENT: u8 = 0xFF; -/// Chunks a frame into ready-to-send chunks. +/// Splits a frame into ready-to-send fragments. /// /// # Notes /// -/// Internally, data is copied into chunks by using `Buf::copy_to_bytes`. It is advisable to use a +/// Internally, data is copied into fragments by using `Buf::copy_to_bytes`. It is advisable to use a /// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. -pub fn chunk_frame( +pub fn fragment_frame( mut frame: B, - chunk_size: NonZeroUsize, -) -> Result, Error> { - let chunk_size: usize = chunk_size.into(); - let num_frames = (frame.remaining() + chunk_size - 1) / chunk_size; + fragment_size: NonZeroUsize, +) -> Result, Error> { + let fragment_size: usize = fragment_size.into(); + let num_frames = (frame.remaining() + fragment_size - 1) / fragment_size; Ok((0..num_frames).into_iter().map(move |_| { - let remaining = frame.remaining().min(chunk_size); - let chunk_data = frame.copy_to_bytes(remaining); + let remaining = frame.remaining().min(fragment_size); + let fragment_data = frame.copy_to_bytes(remaining); let continuation_byte: u8 = if frame.has_remaining() { - MORE_CHUNKS + MORE_FRAGMENT } else { - FINAL_CHUNK + FINAL_FRAGMENT }; - ImmediateFrame::from(continuation_byte).chain(chunk_data) + ImmediateFrame::from(continuation_byte).chain(fragment_data) })) } -/// Generates the "fragmentizer", i.e: an object that when given the source stream of bytes will yield single chunks. +/// Generates the "fragmentizer", i.e: an object that when given the source stream of bytes will yield single fragments. #[allow(unused)] pub(crate) fn make_fragmentizer( sink: S, @@ -56,15 +56,15 @@ pub(crate) fn make_fragmentizer( ) -> impl Sink where E: std::error::Error, - S: Sink, + S: Sink, { sink.with_flat_map(move |frame: Bytes| { - let chunk_iter = chunk_frame(frame, fragment_size).expect("TODO: Handle error"); - stream::iter(chunk_iter.map(Result::<_, _>::Ok)) + let fragment_iter = fragment_frame(frame, fragment_size).expect("TODO: Handle error"); + stream::iter(fragment_iter.map(Result::<_, _>::Ok)) }) } -/// Generates the "defragmentizer", i.e.: an object that when given the source stream of fragments will yield the entire message. +/// Generates the "defragmentizer", i.e.: an object that when given the source stream of fragments will yield the complete message. #[allow(unused)] pub(crate) fn make_defragmentizer>>( source: S, @@ -75,7 +75,7 @@ pub(crate) fn make_defragmentizer>>( let first_byte = *fragment.first().expect("missing first byte"); buffer.push(fragment.split_off(1)); match first_byte { - FINAL_CHUNK => { + FINAL_FRAGMENT => { // TODO: Check the true zero-copy approach. let mut buf = BytesMut::new(); for fragment in buffer.drain(..) { @@ -83,7 +83,7 @@ pub(crate) fn make_defragmentizer>>( } future::ready(Some(buf.freeze())) } - MORE_CHUNKS => future::ready(None), + MORE_FRAGMENT => future::ready(None), _ => panic!("garbage found where continuation byte was expected"), } }) @@ -93,19 +93,19 @@ pub(crate) fn make_defragmentizer>>( mod tests { use crate::tests::collect_buf; - use super::chunk_frame; + use super::fragment_frame; #[test] - fn basic_chunking_works() { + fn basic_fragmenting_works() { let frame = b"01234567890abcdefghijklmno"; - let chunks: Vec<_> = chunk_frame(&frame[..], 7.try_into().unwrap()) - .expect("chunking failed") + let fragments: Vec<_> = fragment_frame(&frame[..], 7.try_into().unwrap()) + .expect("fragmenting failed") .map(collect_buf) .collect(); assert_eq!( - chunks, + fragments, vec![ b"\x000123456".to_vec(), b"\x007890abc".to_vec(), @@ -114,32 +114,32 @@ mod tests { ] ); - // Try with a chunk size that ends exactly on the frame boundary. + // Try with a fragment size that ends exactly on the frame boundary. let frame = b"012345"; - let chunks: Vec<_> = chunk_frame(&frame[..], 3.try_into().unwrap()) - .expect("chunking failed") + let fragments: Vec<_> = fragment_frame(&frame[..], 3.try_into().unwrap()) + .expect("fragmenting failed") .map(collect_buf) .collect(); - assert_eq!(chunks, vec![b"\x00012".to_vec(), b"\xff345".to_vec(),]); + assert_eq!(fragments, vec![b"\x00012".to_vec(), b"\xff345".to_vec(),]); } #[test] - fn chunking_for_small_size_works() { + fn fragmenting_for_small_size_works() { let frame = b"012345"; - let chunks: Vec<_> = chunk_frame(&frame[..], 6.try_into().unwrap()) - .expect("chunking failed") + let fragments: Vec<_> = fragment_frame(&frame[..], 6.try_into().unwrap()) + .expect("fragmenting failed") .map(collect_buf) .collect(); - assert_eq!(chunks, vec![b"\xff012345".to_vec()]); + assert_eq!(fragments, vec![b"\xff012345".to_vec()]); - // Try also with mismatched chunk size. - let chunks: Vec<_> = chunk_frame(&frame[..], 15.try_into().unwrap()) - .expect("chunking failed") + // Try also with mismatched fragment size. + let fragments: Vec<_> = fragment_frame(&frame[..], 15.try_into().unwrap()) + .expect("fragmenting failed") .map(collect_buf) .collect(); - assert_eq!(chunks, vec![b"\xff012345".to_vec()]); + assert_eq!(fragments, vec![b"\xff012345".to_vec()]); } } diff --git a/src/io/length_delimited.rs b/src/io/length_delimited.rs index 5615b4a7f6..e5b1b7ba4b 100644 --- a/src/io/length_delimited.rs +++ b/src/io/length_delimited.rs @@ -78,7 +78,7 @@ mod tests { use super::LengthDelimited; // In tests use small value to make sure that we correctly merge data that was polled from the - // stream in small chunks. + // stream in small fragments. const TESTING_BUFFER_INCREMENT: usize = 4; /// Decodes the input string, returning the decoded frames and the remainder. diff --git a/src/lib.rs b/src/lib.rs index 4741a0c0c3..1f879d6989 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -122,9 +122,8 @@ pub(crate) mod tests { pipe::pipe, }; - // In tests use small value so that we make sure that - // we correctly merge data that was polled from - // the stream in small chunks. + // In tests use small value to make sure that we correctly merge data that was polled from the + // stream in small fragments. const TESTING_BUFFER_INCREMENT: usize = 4; /// Collects everything inside a `Buf` into a `Vec`. @@ -428,28 +427,28 @@ pub(crate) mod tests { /// Test an "end-to-end" instance of the assembled pipeline for sending. #[test] - fn chunked_length_prefixed_sink() { + fn fragmented_length_prefixed_sink() { let (tx, rx) = pipe(); let frame_writer = FrameWriter::new(LengthDelimited, tx); - let mut chunked_sink = + let mut fragmented_sink = make_fragmentizer::<_, Infallible>(frame_writer, NonZeroUsize::new(5).unwrap()); let frame_reader = FrameReader::new(LengthDelimited, rx, TESTING_BUFFER_INCREMENT); - let chunked_reader = make_defragmentizer(frame_reader); + let fragmented_reader = make_defragmentizer(frame_reader); let sample_data = Bytes::from(&b"QRSTUV"[..]); - chunked_sink + fragmented_sink .send(sample_data) .now_or_never() .unwrap() .expect("send failed"); // Drop the sink, to ensure it is closed. - drop(chunked_sink); + drop(fragmented_sink); - let round_tripped: Vec<_> = chunked_reader.collect().now_or_never().unwrap(); + let round_tripped: Vec<_> = fragmented_reader.collect().now_or_never().unwrap(); assert_eq!(round_tripped, &[&b"QRSTUV"[..]]) } @@ -474,8 +473,8 @@ pub(crate) mod tests { #[test] fn from_bytestream_to_multiple_frames() { - let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x0d\x00\xffSINGLE_CHUNK\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; - let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_CHUNK", b"CRUMBS"]; + let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; + let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; let defragmentizer = make_defragmentizer(FrameReader::new( LengthDelimited, From c28a0b2b159557db199ee9b386bc62150da4fdeb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 29 Jun 2022 14:59:37 +0200 Subject: [PATCH 115/735] Rename `chunked.rs` to `fragmented.rs` --- src/{chunked.rs => fragmented.rs} | 0 src/lib.rs | 4 ++-- 2 files changed, 2 insertions(+), 2 deletions(-) rename src/{chunked.rs => fragmented.rs} (100%) diff --git a/src/chunked.rs b/src/fragmented.rs similarity index 100% rename from src/chunked.rs rename to src/fragmented.rs diff --git a/src/lib.rs b/src/lib.rs index 1f879d6989..e537181667 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,9 +1,9 @@ //! Asynchronous multiplexing pub mod backpressured; -pub mod chunked; pub mod error; pub mod fixed_size; +pub mod fragmented; pub mod io; pub mod mux; #[cfg(test)] @@ -117,7 +117,7 @@ pub(crate) mod tests { use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; use crate::{ - chunked::{make_defragmentizer, make_fragmentizer}, + fragmented::{make_defragmentizer, make_fragmentizer}, io::{length_delimited::LengthDelimited, FrameReader, FrameWriter}, pipe::pipe, }; From 4e431503293e99cd36077023dad75363ec5d43f4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 29 Jun 2022 15:47:18 +0200 Subject: [PATCH 116/735] Fix typo --- src/fragmented.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/fragmented.rs b/src/fragmented.rs index 69830f6bb8..71ac62ca23 100644 --- a/src/fragmented.rs +++ b/src/fragmented.rs @@ -17,7 +17,7 @@ use crate::{error::Error, ImmediateFrame}; pub type SingleFragment = bytes::buf::Chain, Bytes>; /// Indicator that more fragments are following. -const MORE_FRAGMENT: u8 = 0x00; +const MORE_FRAGMENTS: u8 = 0x00; /// Final fragment indicator. const FINAL_FRAGMENT: u8 = 0xFF; @@ -40,7 +40,7 @@ pub fn fragment_frame( let fragment_data = frame.copy_to_bytes(remaining); let continuation_byte: u8 = if frame.has_remaining() { - MORE_FRAGMENT + MORE_FRAGMENTS } else { FINAL_FRAGMENT }; @@ -83,7 +83,7 @@ pub(crate) fn make_defragmentizer>>( } future::ready(Some(buf.freeze())) } - MORE_FRAGMENT => future::ready(None), + MORE_FRAGMENTS => future::ready(None), _ => panic!("garbage found where continuation byte was expected"), } }) From d81038e6dfb9246a3fcb8e7b6cb3f10a682e254e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 29 Jun 2022 16:04:11 +0200 Subject: [PATCH 117/735] Change names of encoding traits --- src/io.rs | 14 +++++++------- src/io/length_delimited.rs | 12 ++++++------ 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/src/io.rs b/src/io.rs index 229833392c..d9c6a0efc9 100644 --- a/src/io.rs +++ b/src/io.rs @@ -21,7 +21,7 @@ use crate::try_ready; /// Frame decoder. /// /// A frame decoder is responsible for extracting a frame from a reader's internal buffer. -pub trait Decoder { +pub trait FrameDecoder { /// Decoding error. type Error: std::error::Error + Send + Sync + 'static; @@ -34,9 +34,9 @@ pub trait Decoder { fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; } -/// Frame encoder. +/// Encoder. /// -/// A frame encoder adds the framing envelope (or replaces the frame entirely) of a given raw frame. +/// An encoder takes a value of one kind and transforms it to another. pub trait Encoder { /// Encoding error. type Error: std::error::Error + Send + Sync + 'static; @@ -45,14 +45,14 @@ pub trait Encoder { /// /// While this can be simply `Bytes`, using something like `bytes::Chain` allows for more /// efficient encoding here. - type WrappedFrame: Buf + Send + Sync + 'static; + type Output: Buf + Send + Sync + 'static; /// Encode a frame. /// /// The resulting `Bytes` should be the bytes to send into the outgoing stream, it must contain /// the information required for an accompanying `Decoder` to be able to reconstruct the frame /// from a raw byte stream. - fn encode_frame(&mut self, raw_frame: F) -> Result; + fn encode_frame(&mut self, input: F) -> Result; } /// The outcome of a [`decode_frame`] call. @@ -87,7 +87,7 @@ pub struct FrameWriter, W> { /// Underlying async bytestream being written. stream: W, /// The frame in process of being sent. - current_frame: Option, + current_frame: Option, } impl FrameReader { @@ -109,7 +109,7 @@ impl FrameReader { impl Stream for FrameReader where - D: Decoder + Unpin, + D: FrameDecoder + Unpin, R: AsyncRead + Unpin, { type Item = io::Result; diff --git a/src/io/length_delimited.rs b/src/io/length_delimited.rs index 5615b4a7f6..efd5f79972 100644 --- a/src/io/length_delimited.rs +++ b/src/io/length_delimited.rs @@ -10,7 +10,7 @@ use thiserror::Error; use crate::ImmediateFrame; -use super::{DecodeResult, Decoder, Encoder}; +use super::{DecodeResult, Encoder, FrameDecoder}; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); @@ -18,7 +18,7 @@ const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); /// Two-byte length delimited frame encoder. pub struct LengthDelimited; -impl Decoder for LengthDelimited { +impl FrameDecoder for LengthDelimited { type Error = Infallible; fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { @@ -58,14 +58,14 @@ where F: Buf + Send + Sync + 'static, { type Error = LengthExceededError; - type WrappedFrame = LengthPrefixedFrame; + type Output = LengthPrefixedFrame; - fn encode_frame(&mut self, raw_frame: F) -> Result { - let remaining = raw_frame.remaining(); + fn encode_frame(&mut self, input: F) -> Result { + let remaining = input.remaining(); let length: u16 = remaining .try_into() .map_err(|_err| LengthExceededError(remaining))?; - Ok(ImmediateFrame::from(length).chain(raw_frame)) + Ok(ImmediateFrame::from(length).chain(input)) } } From f0ba2dde8fcc8ba66855e7bb3d6699dd26d8ff37 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 29 Jun 2022 16:07:01 +0200 Subject: [PATCH 118/735] Add `codec` module, moving `Encoder` trait here --- src/codec.rs | 22 ++++++++++++++++++++++ src/io.rs | 25 ++----------------------- src/io/length_delimited.rs | 6 +++--- src/lib.rs | 1 + 4 files changed, 28 insertions(+), 26 deletions(-) create mode 100644 src/codec.rs diff --git a/src/codec.rs b/src/codec.rs new file mode 100644 index 0000000000..36f405c461 --- /dev/null +++ b/src/codec.rs @@ -0,0 +1,22 @@ +use bytes::Buf; + +/// Encoder. +/// +/// An encoder takes a value of one kind and transforms it to another. +pub trait Encoder { + /// Encoding error. + type Error: std::error::Error + Send + Sync + 'static; + + /// The wrapped frame resulting from encoding the given raw frame. + /// + /// While this can be simply `Bytes`, using something like `bytes::Chain` allows for more + /// efficient encoding here. + type Output: Buf + Send + Sync + 'static; + + /// Encode a value. + /// + /// The resulting `Bytes` should be the bytes to send into the outgoing stream, it must contain + /// the information required for an accompanying `Decoder` to be able to reconstruct the frame + /// from a raw byte stream. + fn encode(&mut self, input: F) -> Result; +} diff --git a/src/io.rs b/src/io.rs index d9c6a0efc9..94e3988002 100644 --- a/src/io.rs +++ b/src/io.rs @@ -16,7 +16,7 @@ use bytes::{Buf, Bytes, BytesMut}; use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; use thiserror::Error; -use crate::try_ready; +use crate::{codec::Encoder, try_ready}; /// Frame decoder. /// @@ -34,27 +34,6 @@ pub trait FrameDecoder { fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; } -/// Encoder. -/// -/// An encoder takes a value of one kind and transforms it to another. -pub trait Encoder { - /// Encoding error. - type Error: std::error::Error + Send + Sync + 'static; - - /// The wrapped frame resulting from encoding the given raw frame. - /// - /// While this can be simply `Bytes`, using something like `bytes::Chain` allows for more - /// efficient encoding here. - type Output: Buf + Send + Sync + 'static; - - /// Encode a frame. - /// - /// The resulting `Bytes` should be the bytes to send into the outgoing stream, it must contain - /// the information required for an accompanying `Decoder` to be able to reconstruct the frame - /// from a raw byte stream. - fn encode_frame(&mut self, input: F) -> Result; -} - /// The outcome of a [`decode_frame`] call. #[derive(Debug, Error)] pub enum DecodeResult { @@ -224,7 +203,7 @@ where fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let wrapped_frame = self .encoder - .encode_frame(item) + .encode(item) .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?; self.current_frame = Some(wrapped_frame); diff --git a/src/io/length_delimited.rs b/src/io/length_delimited.rs index efd5f79972..67bbdd3502 100644 --- a/src/io/length_delimited.rs +++ b/src/io/length_delimited.rs @@ -8,9 +8,9 @@ use std::convert::Infallible; use bytes::{Buf, BytesMut}; use thiserror::Error; -use crate::ImmediateFrame; +use crate::{codec::Encoder, ImmediateFrame}; -use super::{DecodeResult, Encoder, FrameDecoder}; +use super::{DecodeResult, FrameDecoder}; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); @@ -60,7 +60,7 @@ where type Error = LengthExceededError; type Output = LengthPrefixedFrame; - fn encode_frame(&mut self, input: F) -> Result { + fn encode(&mut self, input: F) -> Result { let remaining = input.remaining(); let length: u16 = remaining .try_into() diff --git a/src/lib.rs b/src/lib.rs index 4741a0c0c3..41449fb241 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -2,6 +2,7 @@ pub mod backpressured; pub mod chunked; +pub mod codec; pub mod error; pub mod fixed_size; pub mod io; From 7db2b0ad1955ceeaec89e8f98b0cba2029201e1b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 5 Jul 2022 14:34:13 +0200 Subject: [PATCH 119/735] Integrate `muxink` into workspace --- Cargo.lock | 42 +++- Cargo.toml | 1 + muxink/Cargo.lock | 485 ---------------------------------------------- 3 files changed, 41 insertions(+), 487 deletions(-) delete mode 100644 muxink/Cargo.lock diff --git a/Cargo.lock b/Cargo.lock index 68cd4cd036..7b99dc1cb9 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2739,6 +2739,19 @@ dependencies = [ "casper-types 1.5.0", ] +[[package]] +name = "muxink" +version = "0.1.0" +dependencies = [ + "anyhow", + "bytes", + "futures", + "thiserror", + "tokio", + "tokio-stream", + "tokio-util 0.7.3", +] + [[package]] name = "named-dictionary-test" version = "0.1.0" @@ -3066,7 +3079,17 @@ checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99" dependencies = [ "instant", "lock_api", - 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-[[package]] -name = "windows_i686_gnu" -version = "0.36.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6" - -[[package]] -name = "windows_i686_msvc" -version = "0.36.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024" - -[[package]] -name = "windows_x86_64_gnu" -version = "0.36.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1" - -[[package]] -name = "windows_x86_64_msvc" -version = "0.36.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680" From e9a9e220047f6f3a4407466f06b04071be98dba4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 5 Jul 2022 14:39:01 +0200 Subject: [PATCH 120/735] Sketch new codec/io based on encoding. --- Cargo.lock | 7 ++ Cargo.toml | 8 ++- src/codec.rs | 10 +++ src/io.rs | 1 + src/io/serde.rs | 173 ++++++++++++++++++++++++++++++++++++++++++++++++ src/mux.rs | 2 +- 6 files changed, 197 insertions(+), 4 deletions(-) create mode 100644 src/io/serde.rs diff --git a/Cargo.lock b/Cargo.lock index b99e155e2d..92af004d26 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -191,6 +191,7 @@ dependencies = [ "anyhow", "bytes", "futures", + "serde", "thiserror", "tokio", "tokio-stream", @@ -290,6 +291,12 @@ version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd" +[[package]] +name = "serde" +version = "1.0.137" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1" + [[package]] name = "signal-hook-registry" version = "1.4.0" diff --git a/Cargo.toml b/Cargo.toml index dfadfa410f..bb50db5b6e 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -3,15 +3,17 @@ name = "muxink" version = "0.1.0" edition = "2021" -# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html - [dependencies] anyhow = "1.0.57" bytes = "1.1.0" futures = "0.3.21" +serde = { version = "1.0.137", optional = true } thiserror = "1.0.31" -tokio = { version = "1.18.1", features = ["full"] } +tokio = { version = "1.18.1", features = [ "full" ] } tokio-util = "0.7.2" [dev-dependencies] tokio-stream = "0.1.8" + +[features] +default = [ "serde" ] diff --git a/src/codec.rs b/src/codec.rs index 36f405c461..3f0f97838c 100644 --- a/src/codec.rs +++ b/src/codec.rs @@ -1,4 +1,7 @@ +use std::marker::PhantomData; + use bytes::Buf; +use futures::Sink; /// Encoder. /// @@ -20,3 +23,10 @@ pub trait Encoder { /// from a raw byte stream. fn encode(&mut self, input: F) -> Result; } + +struct EncodingAdapter { + encoder: E, + _phantom: PhantomData, +} + +impl Sink for EncodingAdapter {} diff --git a/src/io.rs b/src/io.rs index 94e3988002..2af44f2a02 100644 --- a/src/io.rs +++ b/src/io.rs @@ -5,6 +5,7 @@ //! frames. pub mod length_delimited; +// pub mod serde; use std::{ io, diff --git a/src/io/serde.rs b/src/io/serde.rs new file mode 100644 index 0000000000..8003afa0ba --- /dev/null +++ b/src/io/serde.rs @@ -0,0 +1,173 @@ +// #### QUESTION: ONE ENCODER OPERATES ON FRAMES AND ONE OPERATES ON BUFFERS! BUT THIS ISNT TRUE, SINCE THE WRITE-SINK TAKES `Buf`! + +//! Serde encoding/decoding + +use std::convert::Infallible; + +use bytes::{Buf, BytesMut}; +use thiserror::Error; + +use crate::ImmediateFrame; + +use super::{DecodeResult, Decoder, Encoder}; + +/// Lenght of the prefix that describes the length of the following frame. +const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); + +/// Two-byte length delimited frame encoder. +pub struct LengthDelimited; + +impl Decoder for LengthDelimited { + type Error = Infallible; + + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { + let bytes_in_buffer = buffer.remaining(); + if bytes_in_buffer < LENGTH_MARKER_SIZE { + return DecodeResult::Incomplete; + } + let data_length = u16::from_le_bytes( + buffer[0..LENGTH_MARKER_SIZE] + .try_into() + .expect("any two bytes should be parseable to u16"), + ) as usize; + + let end = LENGTH_MARKER_SIZE + data_length; + + if bytes_in_buffer < end { + return DecodeResult::Remaining(end - bytes_in_buffer); + } + + let mut full_frame = buffer.split_to(end); + let _ = full_frame.get_u16_le(); + + DecodeResult::Frame(full_frame) + } +} + +/// A length-based encoding error. +#[derive(Debug, Error)] +#[error("outgoing frame would exceed maximum frame length of 64 KB: {0}")] +pub struct LengthExceededError(usize); + +/// The frame type for length prefixed frames. +pub type LengthPrefixedFrame = bytes::buf::Chain, F>; + +impl Encoder for LengthDelimited +where + F: Buf + Send + Sync + 'static, +{ + type Error = LengthExceededError; + type WrappedFrame = LengthPrefixedFrame; + + fn encode_frame(&mut self, raw_frame: F) -> Result { + let remaining = raw_frame.remaining(); + let length: u16 = remaining + .try_into() + .map_err(|_err| LengthExceededError(remaining))?; + Ok(ImmediateFrame::from(length).chain(raw_frame)) + } +} + +#[cfg(test)] +mod tests { + use futures::io::Cursor; + + use crate::{io::FrameReader, tests::collect_stream_results}; + + use super::LengthDelimited; + + // In tests use small value to make sure that we correctly merge data that was polled from the + // stream in small chunks. + const TESTING_BUFFER_INCREMENT: usize = 4; + + /// Decodes the input string, returning the decoded frames and the remainder. + fn run_decoding_stream(input: &[u8]) -> (Vec>, Vec) { + let stream = Cursor::new(input); + + let mut reader = FrameReader::new(LengthDelimited, stream, TESTING_BUFFER_INCREMENT); + + let decoded: Vec<_> = collect_stream_results(&mut reader) + .into_iter() + .map(|bytes| bytes.into_iter().collect::>()) + .collect(); + + // Extract the remaining data. + let (_decoder, cursor, buffer) = reader.into_parts(); + let mut remaining = Vec::new(); + remaining.extend(buffer.into_iter()); + let cursor_pos = cursor.position() as usize; + remaining.extend(&cursor.into_inner()[cursor_pos..]); + + (decoded, remaining) + } + + #[test] + fn produces_fragments_from_stream() { + let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; + let expected: &[&[u8]] = &[b"\x00ABCDE", b"\x00FGHIJ", b"\xffKL", b"\xffM"]; + + let (decoded, remainder) = run_decoding_stream(input); + + assert_eq!(expected, decoded); + assert!(remainder.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_single_frame() { + let input = b"\x01\x00X"; + + let (decoded, remainder) = run_decoding_stream(input); + assert_eq!(decoded, &[b"X"]); + assert!(remainder.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_empty_buffer() { + let input: &[u8] = b""; + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + assert!(remainder.is_empty()); + } + + #[test] + fn extracts_length_delimited_frame_incomplete_length_in_buffer() { + let input = b"A"; + + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + assert_eq!(remainder, b"A"); + } + + #[test] + fn extracts_length_delimited_frame_incomplete_data_in_buffer() { + let input = b"\xff\xffABCD"; + + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + + assert_eq!(remainder, b"\xff\xffABCD"[..]); + } + + #[test] + fn extracts_length_delimited_frame_only_length_in_buffer() { + let input = b"\xff\xff"; + + let (decoded, remainder) = run_decoding_stream(input); + + assert!(decoded.is_empty()); + assert_eq!(remainder, b"\xff\xff"[..]); + } + + #[test] + fn extracts_length_delimited_frame_max_size() { + let mut input = Vec::from(&b"\xff\xff"[..]); + input.resize(u16::MAX as usize + 2, 50); + let (decoded, remainder) = run_decoding_stream(&input); + + assert_eq!(decoded, &[&input[2..]]); + assert!(remainder.is_empty()); + } +} diff --git a/src/mux.rs b/src/mux.rs index 9c328107de..8793098823 100644 --- a/src/mux.rs +++ b/src/mux.rs @@ -27,7 +27,7 @@ use std::{ }; use bytes::Buf; -use futures::{ready, FutureExt, Sink, SinkExt}; +use futures::{ready, FutureExt, Sink, SinkExt, Stream}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; From e826179ce23f15ff11868bee93340e74b3f8ede1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Jul 2022 16:28:57 +0200 Subject: [PATCH 121/735] Fix formatting of `Cargo.toml` in `muxink` --- muxink/Cargo.toml | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index dfadfa410f..6378eb3a5c 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -3,14 +3,12 @@ name = "muxink" version = "0.1.0" edition = "2021" -# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html - [dependencies] anyhow = "1.0.57" bytes = "1.1.0" futures = "0.3.21" thiserror = "1.0.31" -tokio = { version = "1.18.1", features = ["full"] } +tokio = { version = "1.18.1", features = [ "full" ] } tokio-util = "0.7.2" [dev-dependencies] From 2a33b704d3e48111d185ed62ef45b4826c30abd7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Jul 2022 16:29:49 +0200 Subject: [PATCH 122/735] Remove unnecessary `.gitignore` from muxink path --- muxink/.gitignore | 1 - 1 file changed, 1 deletion(-) delete mode 100644 muxink/.gitignore diff --git a/muxink/.gitignore b/muxink/.gitignore deleted file mode 100644 index ea8c4bf7f3..0000000000 --- a/muxink/.gitignore +++ /dev/null @@ -1 +0,0 @@ -/target From dd8b0cd75128d046e46b92cbb777bff180cefd05 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Jul 2022 17:32:38 +0200 Subject: [PATCH 123/735] Implement `codec` encoding support --- muxink/src/codec.rs | 100 ++++++++++++++++++++++++++++++++++++-------- muxink/src/io.rs | 2 + 2 files changed, 84 insertions(+), 18 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 3f0f97838c..ded2e22d68 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -1,32 +1,96 @@ -use std::marker::PhantomData; +use std::{ + marker::PhantomData, + pin::Pin, + task::{Context, Poll}, +}; -use bytes::Buf; -use futures::Sink; +use futures::{Sink, SinkExt}; +use thiserror::Error; /// Encoder. /// -/// An encoder takes a value of one kind and transforms it to another. -pub trait Encoder { +/// An encoder takes a value of one kind and transforms it to another. Encoders may contain a state +/// or configuration, which is why this trait is not just a function. +pub trait Encoder { /// Encoding error. type Error: std::error::Error + Send + Sync + 'static; - /// The wrapped frame resulting from encoding the given raw frame. - /// - /// While this can be simply `Bytes`, using something like `bytes::Chain` allows for more - /// efficient encoding here. - type Output: Buf + Send + Sync + 'static; + /// The output produced by the encoder. + type Output: Send + Sync + 'static; - /// Encode a value. + /// Encodes a value. /// - /// The resulting `Bytes` should be the bytes to send into the outgoing stream, it must contain - /// the information required for an accompanying `Decoder` to be able to reconstruct the frame - /// from a raw byte stream. - fn encode(&mut self, input: F) -> Result; + /// When encoding to type-erased values it must contain the information required for an + /// accompanying `Decoder` to be able to reconstruct the value from the encoded data. + fn encode(&mut self, input: Input) -> Result; +} + +/// Error encoding data for an underlying sink. +#[derive(Debug, Error)] +enum EncodingSinkError { + /// The encoder failed to encode the given value. + #[error("encoding failed")] + Encoder(#[source] EncErr), + /// The wrapped sink returned an error. + #[error(transparent)] + Sink(SinkErr), } -struct EncodingAdapter { +/// A sink adapter for encoding incoming values into an underlying sink. +struct EncodingSink +where + E: Encoder, + S: Sink, +{ + /// Encoder used to encode data before passing it to the sink. encoder: E, - _phantom: PhantomData, + /// Underlying sink where data is sent. + sink: S, + /// Phantom data to associate the input with this encoding sink. + _input_frame: PhantomData, } -impl Sink for EncodingAdapter {} +impl Sink for EncodingSink +where + Input: Unpin, + E: Encoder + Unpin, + S: Sink + Unpin, +{ + type Error = EncodingSinkError; + + #[inline] + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + self_mut + .sink + .poll_ready_unpin(cx) + .map_err(EncodingSinkError::Sink) + } + + #[inline] + fn start_send(self: Pin<&mut Self>, item: Input) -> Result<(), Self::Error> { + let self_mut = self.get_mut(); + + let encoded = self_mut + .encoder + .encode(item) + .map_err(EncodingSinkError::Encoder)?; + + self_mut + .sink + .start_send_unpin(encoded) + .map_err(EncodingSinkError::Sink) + } + + #[inline] + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + self_mut.poll_flush_unpin(cx) + } + + #[inline] + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + self_mut.poll_close_unpin(cx) + } +} diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 2af44f2a02..4d2bee585a 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -132,6 +132,7 @@ where impl FrameWriter where E: Encoder, + >::Output: Buf, { /// Creates a new frame writer with the given encoder. pub fn new(encoder: E, stream: W) -> Self { @@ -186,6 +187,7 @@ impl Sink for FrameWriter where Self: Unpin, E: Encoder, + >::Output: Buf, F: Buf, W: AsyncWrite + Unpin, { From b508738520972e4ce1ae66714f700fe95d667c9b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Jul 2022 18:39:24 +0200 Subject: [PATCH 124/735] Rename encoder to transcoder --- muxink/src/codec.rs | 67 ++++++++++++++++--------------- muxink/src/io.rs | 14 +++---- muxink/src/io/length_delimited.rs | 6 +-- 3 files changed, 44 insertions(+), 43 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index ded2e22d68..c88b264d83 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -7,56 +7,57 @@ use std::{ use futures::{Sink, SinkExt}; use thiserror::Error; -/// Encoder. +/// Transcoder. /// -/// An encoder takes a value of one kind and transforms it to another. Encoders may contain a state -/// or configuration, which is why this trait is not just a function. -pub trait Encoder { - /// Encoding error. +/// A transcoder takes a value of one kind and transforms it to another. Transcoders may contain a +/// state or configuration, which is why this trait is not just a function. +pub trait Transcoder { + /// Transcoding error. type Error: std::error::Error + Send + Sync + 'static; - /// The output produced by the encoder. + /// The output produced by the transcoder. type Output: Send + Sync + 'static; - /// Encodes a value. + /// Transcodes a value. /// - /// When encoding to type-erased values it must contain the information required for an - /// accompanying `Decoder` to be able to reconstruct the value from the encoded data. - fn encode(&mut self, input: Input) -> Result; + /// When transcoding to type-erased values it should contain the information required for an + /// accompanying reverse-direction transcode to be able to reconstruct the value from the + /// transcoded data. + fn transcode(&mut self, input: Input) -> Result; } -/// Error encoding data for an underlying sink. +/// Error transcoding data for an underlying sink. #[derive(Debug, Error)] -enum EncodingSinkError { - /// The encoder failed to encode the given value. - #[error("encoding failed")] - Encoder(#[source] EncErr), +enum TranscodingSinkError { + /// The transcoder failed to transcode the given value. + #[error("transcoding failed")] + Transcoder(#[source] TransErr), /// The wrapped sink returned an error. #[error(transparent)] Sink(SinkErr), } -/// A sink adapter for encoding incoming values into an underlying sink. -struct EncodingSink +/// A sink adapter for transcoding incoming values into an underlying sink. +struct TranscodingSink where - E: Encoder, - S: Sink, + T: Transcoder, + S: Sink, { - /// Encoder used to encode data before passing it to the sink. - encoder: E, + /// Transcoder used to transcode data before passing it to the sink. + transcoder: T, /// Underlying sink where data is sent. sink: S, - /// Phantom data to associate the input with this encoding sink. + /// Phantom data to associate the input with this transcoding sink. _input_frame: PhantomData, } -impl Sink for EncodingSink +impl Sink for TranscodingSink where Input: Unpin, - E: Encoder + Unpin, - S: Sink + Unpin, + T: Transcoder + Unpin, + S: Sink + Unpin, { - type Error = EncodingSinkError; + type Error = TranscodingSinkError; #[inline] fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -64,22 +65,22 @@ where self_mut .sink .poll_ready_unpin(cx) - .map_err(EncodingSinkError::Sink) + .map_err(TranscodingSinkError::Sink) } #[inline] fn start_send(self: Pin<&mut Self>, item: Input) -> Result<(), Self::Error> { let self_mut = self.get_mut(); - let encoded = self_mut - .encoder - .encode(item) - .map_err(EncodingSinkError::Encoder)?; + let transcoded = self_mut + .transcoder + .transcode(item) + .map_err(TranscodingSinkError::Transcoder)?; self_mut .sink - .start_send_unpin(encoded) - .map_err(EncodingSinkError::Sink) + .start_send_unpin(transcoded) + .map_err(TranscodingSinkError::Sink) } #[inline] diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 4d2bee585a..bb01b53578 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -17,7 +17,7 @@ use bytes::{Buf, Bytes, BytesMut}; use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; use thiserror::Error; -use crate::{codec::Encoder, try_ready}; +use crate::{codec::Transcoder, try_ready}; /// Frame decoder. /// @@ -61,7 +61,7 @@ pub struct FrameReader { } /// Writer for frames. -pub struct FrameWriter, W> { +pub struct FrameWriter, W> { /// The encoder used to encode outgoing frames. encoder: E, /// Underlying async bytestream being written. @@ -131,8 +131,8 @@ where impl FrameWriter where - E: Encoder, - >::Output: Buf, + E: Transcoder, + >::Output: Buf, { /// Creates a new frame writer with the given encoder. pub fn new(encoder: E, stream: W) -> Self { @@ -186,8 +186,8 @@ where impl Sink for FrameWriter where Self: Unpin, - E: Encoder, - >::Output: Buf, + E: Transcoder, + >::Output: Buf, F: Buf, W: AsyncWrite + Unpin, { @@ -206,7 +206,7 @@ where fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let wrapped_frame = self .encoder - .encode(item) + .transcode(item) .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?; self.current_frame = Some(wrapped_frame); diff --git a/muxink/src/io/length_delimited.rs b/muxink/src/io/length_delimited.rs index d4d0cc27f4..e362efa466 100644 --- a/muxink/src/io/length_delimited.rs +++ b/muxink/src/io/length_delimited.rs @@ -8,7 +8,7 @@ use std::convert::Infallible; use bytes::{Buf, BytesMut}; use thiserror::Error; -use crate::{codec::Encoder, ImmediateFrame}; +use crate::{codec::Transcoder, ImmediateFrame}; use super::{DecodeResult, FrameDecoder}; @@ -53,14 +53,14 @@ pub struct LengthExceededError(usize); /// The frame type for length prefixed frames. pub type LengthPrefixedFrame = bytes::buf::Chain, F>; -impl Encoder for LengthDelimited +impl Transcoder for LengthDelimited where F: Buf + Send + Sync + 'static, { type Error = LengthExceededError; type Output = LengthPrefixedFrame; - fn encode(&mut self, input: F) -> Result { + fn transcode(&mut self, input: F) -> Result { let remaining = input.remaining(); let length: u16 = remaining .try_into() From 36f4e75c36492af48f81427b85b847be3213b6c1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Jul 2022 18:51:40 +0200 Subject: [PATCH 125/735] Add a transcoding stream --- muxink/src/codec.rs | 45 ++++++++++++++++++++++++++++++++++++--------- 1 file changed, 36 insertions(+), 9 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index c88b264d83..99582f0743 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -4,7 +4,7 @@ use std::{ task::{Context, Poll}, }; -use futures::{Sink, SinkExt}; +use futures::{ready, Sink, SinkExt, Stream, StreamExt}; use thiserror::Error; /// Transcoder. @@ -26,15 +26,15 @@ pub trait Transcoder { fn transcode(&mut self, input: Input) -> Result; } -/// Error transcoding data for an underlying sink. +/// Error transcoding data from/for an underlying input/output type. #[derive(Debug, Error)] -enum TranscodingSinkError { +enum TranscodingIoError { /// The transcoder failed to transcode the given value. #[error("transcoding failed")] Transcoder(#[source] TransErr), - /// The wrapped sink returned an error. + /// The wrapped io returned an error. #[error(transparent)] - Sink(SinkErr), + Io(IoErr), } /// A sink adapter for transcoding incoming values into an underlying sink. @@ -57,7 +57,7 @@ where T: Transcoder + Unpin, S: Sink + Unpin, { - type Error = TranscodingSinkError; + type Error = TranscodingIoError; #[inline] fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -65,7 +65,7 @@ where self_mut .sink .poll_ready_unpin(cx) - .map_err(TranscodingSinkError::Sink) + .map_err(TranscodingIoError::Io) } #[inline] @@ -75,12 +75,12 @@ where let transcoded = self_mut .transcoder .transcode(item) - .map_err(TranscodingSinkError::Transcoder)?; + .map_err(TranscodingIoError::Transcoder)?; self_mut .sink .start_send_unpin(transcoded) - .map_err(TranscodingSinkError::Sink) + .map_err(TranscodingIoError::Io) } #[inline] @@ -95,3 +95,30 @@ where self_mut.poll_close_unpin(cx) } } + +#[derive(Debug)] +struct TranscodingStream { + /// Transcoder used to transcode data before returning from the stream. + transcoder: T, + /// Underlying stream where data is sent. + stream: S, +} + +impl Stream for TranscodingStream +where + T: Transcoder + Unpin, + S: Stream + Unpin, +{ + type Item = Result; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + match ready!(self_mut.stream.poll_next_unpin(cx)) { + Some(input) => match self_mut.transcoder.transcode(input) { + Ok(transcoded) => Poll::Ready(Some(Ok(transcoded))), + Err(err) => Poll::Ready(Some(Err(err))), + }, + None => Poll::Ready(None), + } + } +} From 8a28d3fc51ed6800694e25feb3111182a57a078b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 8 Jul 2022 17:05:57 +0200 Subject: [PATCH 126/735] Fix bug in `TranscodingSink` causing an endless loop --- muxink/src/codec.rs | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 99582f0743..e904b36c0e 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -86,13 +86,19 @@ where #[inline] fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let self_mut = self.get_mut(); - self_mut.poll_flush_unpin(cx) + self_mut + .sink + .poll_flush_unpin(cx) + .map_err(TranscodingIoError::Io) } #[inline] fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let self_mut = self.get_mut(); - self_mut.poll_close_unpin(cx) + self_mut + .sink + .poll_close_unpin(cx) + .map_err(TranscodingIoError::Io) } } From 1d660db98eff07676cd53d66f740df447cebcb0d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 8 Jul 2022 19:32:50 +0200 Subject: [PATCH 127/735] Make transcoding trait & friends a little easier to inspect --- muxink/src/codec.rs | 29 ++++++++++++++++++++++++----- muxink/src/mux.rs | 2 +- 2 files changed, 25 insertions(+), 6 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index e904b36c0e..16d39a5331 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -1,4 +1,5 @@ use std::{ + fmt::Debug, marker::PhantomData, pin::Pin, task::{Context, Poll}, @@ -13,7 +14,7 @@ use thiserror::Error; /// state or configuration, which is why this trait is not just a function. pub trait Transcoder { /// Transcoding error. - type Error: std::error::Error + Send + Sync + 'static; + type Error: std::error::Error + Debug + Send + Sync + 'static; /// The output produced by the transcoder. type Output: Send + Sync + 'static; @@ -28,7 +29,7 @@ pub trait Transcoder { /// Error transcoding data from/for an underlying input/output type. #[derive(Debug, Error)] -enum TranscodingIoError { +pub enum TranscodingIoError { /// The transcoder failed to transcode the given value. #[error("transcoding failed")] Transcoder(#[source] TransErr), @@ -38,7 +39,8 @@ enum TranscodingIoError { } /// A sink adapter for transcoding incoming values into an underlying sink. -struct TranscodingSink +#[derive(Debug)] +pub struct TranscodingSink where T: Transcoder, S: Sink, @@ -51,11 +53,28 @@ where _input_frame: PhantomData, } +impl TranscodingSink +where + T: Transcoder, + S: Sink, +{ + /// Creates a new transcoding sink. + pub fn new(transcoder: T, sink: S) -> Self { + Self { + transcoder, + sink, + _input_frame: PhantomData, + } + } +} + impl Sink for TranscodingSink where - Input: Unpin, + Input: Unpin + std::fmt::Debug, T: Transcoder + Unpin, S: Sink + Unpin, + T::Output: std::fmt::Debug, + >::Error: std::error::Error, { type Error = TranscodingIoError; @@ -103,7 +122,7 @@ where } #[derive(Debug)] -struct TranscodingStream { +pub struct TranscodingStream { /// Transcoder used to transcode data before returning from the stream. transcoder: T, /// Underlying stream where data is sent. diff --git a/muxink/src/mux.rs b/muxink/src/mux.rs index 8793098823..9c328107de 100644 --- a/muxink/src/mux.rs +++ b/muxink/src/mux.rs @@ -27,7 +27,7 @@ use std::{ }; use bytes::Buf; -use futures::{ready, FutureExt, Sink, SinkExt, Stream}; +use futures::{ready, FutureExt, Sink, SinkExt}; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; From fe00ccd825f6489b79fece7227ed83f0c79445c8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 8 Jul 2022 20:12:36 +0200 Subject: [PATCH 128/735] Add the `SinkMuxExt` trait --- muxink/src/lib.rs | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 4e5832d5d7..9a9757dd47 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -11,6 +11,9 @@ pub mod mux; pub(crate) mod pipe; use bytes::Buf; +use codec::{Transcoder, TranscodingSink}; +use futures::Sink; +use io::length_delimited::{LengthDelimited, LengthPrefixedFrame}; /// Helper macro for returning a `Poll::Ready(Err)` eagerly. /// @@ -101,6 +104,44 @@ where } } +/// Convenience trait for construction of sink chains. +pub trait SinkMuxExt: Sized { + /// Wraps the current sink in a transcoder. + /// + /// The resulting sink will pass all items through the given transcoder before passing them on. + fn with_transcoder( + self, + transcoder: T, + ) -> TranscodingSink + where + Self: Sink, + T: Transcoder; + + /// Wrap current sink in length delimination. + /// + /// Equivalent to `.with_transcoder(LengthDelimited)`. + fn length_delimited(self) -> TranscodingSink + where + Self: Sink>, + F: Buf + Send + Sync + 'static, + { + self.with_transcoder(LengthDelimited) + } +} + +impl SinkMuxExt for S { + fn with_transcoder( + self, + transcoder: T, + ) -> TranscodingSink + where + S: Sink + Sized, + T: Transcoder, + { + TranscodingSink::new(transcoder, self) + } +} + #[cfg(test)] pub(crate) mod tests { use std::{ From 42871477480c0fcb9175fff7e5dff7e82cda4aa4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 13:55:59 +0200 Subject: [PATCH 129/735] Add new `Fragmentizer` --- muxink/src/fragmented.rs | 116 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 114 insertions(+), 2 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 71ac62ca23..6373d46511 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -4,15 +4,21 @@ //! continuation byte, which is `0x00` if more fragments are following, `0xFF` if this is the frame's //! last fragment. -use std::{future, io, num::NonZeroUsize}; +use std::{ + future, io, + num::NonZeroUsize, + pin::Pin, + task::{Context, Poll}, +}; use bytes::{Buf, BufMut, Bytes, BytesMut}; use futures::{ + ready, stream::{self}, Sink, SinkExt, Stream, StreamExt, }; -use crate::{error::Error, ImmediateFrame}; +use crate::{error::Error, try_ready, ImmediateFrame}; pub type SingleFragment = bytes::buf::Chain, Bytes>; @@ -22,6 +28,112 @@ const MORE_FRAGMENTS: u8 = 0x00; /// Final fragment indicator. const FINAL_FRAGMENT: u8 = 0xFF; +#[derive(Debug)] +struct Fragmentizer { + current_frame: Option, + current_fragment: Option, + sink: S, + fragment_size: NonZeroUsize, +} + +impl Fragmentizer +where + S: Sink + Unpin, + F: Buf, +{ + /// Creates a new fragmentizer with the given fragment size. + pub fn new(fragment_size: NonZeroUsize, sink: S) -> Self { + Fragmentizer { + current_frame: None, + current_fragment: None, + sink, + fragment_size, + } + } + + fn flush_current_frame( + &mut self, + cx: &mut Context<'_>, + ) -> Poll>::Error>> { + loop { + if self.current_fragment.is_some() { + // There is fragment data to send, attempt to make progress: + + // First, poll the sink until it is ready to accept another item. + try_ready!(ready!(self.sink.poll_ready_unpin(cx))); + + // Extract the item and push it into the underlying sink. + try_ready!(self + .sink + .start_send_unpin(self.current_fragment.take().unwrap())); + } + + // At this point, `current_fragment` is empty, so we try to create another one. + if let Some(ref mut current_frame) = self.current_frame { + let remaining = current_frame.remaining().min(self.fragment_size.into()); + let fragment_data = current_frame.copy_to_bytes(remaining); + + let continuation_byte: u8 = if current_frame.has_remaining() { + MORE_FRAGMENTS + } else { + // If it is the last fragment, remove the current frame. + self.current_frame = None; + FINAL_FRAGMENT + }; + + self.current_fragment = + Some(ImmediateFrame::from(continuation_byte).chain(fragment_data)); + } else { + // All our fragments are buffered and there are no more fragments to create. + return Poll::Ready(Ok(())); + } + } + } +} + +impl Sink for Fragmentizer +where + F: Buf + Send + Sync + 'static + Unpin, + S: Sink + Unpin, +{ + type Error = >::Error; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + // We will be ready to accept another item once the current one has been flushed fully. + self_mut.flush_current_frame(cx) + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + let self_mut = self.get_mut(); + + debug_assert!(self_mut.current_frame.is_none()); + self_mut.current_frame = Some(item); + + Ok(()) + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + try_ready!(ready!(self_mut.flush_current_frame(cx))); + + // At this point everything has been buffered, so we defer to the underlying sink's flush to + // ensure the final fragment also has been sent. + + self_mut.poll_flush_unpin(cx) + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + + try_ready!(ready!(self_mut.flush_current_frame(cx))); + + self_mut.poll_close_unpin(cx) + } +} + /// Splits a frame into ready-to-send fragments. /// /// # Notes From 9ba6e0ddecd3c77a43fa85725a6f1867ec22d6ed Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 15:26:28 +0200 Subject: [PATCH 130/735] Add new `Defragmentizer` --- muxink/src/fragmented.rs | 116 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 6373d46511..ebc34308e8 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -17,6 +17,7 @@ use futures::{ stream::{self}, Sink, SinkExt, Stream, StreamExt, }; +use thiserror::Error; use crate::{error::Error, try_ready, ImmediateFrame}; @@ -134,6 +135,121 @@ where } } +#[derive(Debug)] +struct Defragmentizer { + stream: S, + buffer: BytesMut, + max_output_frame_size: usize, +} + +impl Defragmentizer { + pub fn new(max_output_frame_size: usize, stream: S) -> Self { + Defragmentizer { + stream, + buffer: BytesMut::new(), + max_output_frame_size, + } + } +} + +#[derive(Debug, Error)] +enum DefragmentizerError { + /// A fragment header was sent that is not `MORE_FRAGMENTS` or `FINAL_FRAGMENT`. + #[error( + "received invalid fragment header of {}, expected {} or {}", + 0, + MORE_FRAGMENTS, + FINAL_FRAGMENT + )] + InvalidFragmentHeader(u8), + /// A fragment with a length of zero was received that was not final, which is not allowed to + /// prevent spam with this kind of frame. + #[error("received fragment with zero length that was not final")] + NonFinalZeroLengthFragment, + /// A zero-length fragment (including the envelope) was received, i.e. missing the header. + #[error("missing fragment header")] + MissingFragmentHeader, + /// The incoming stream was closed, with data still in the buffer, missing a final fragment. + #[error("stream closed mid-frame")] + IncompleteFrame, + /// Reading the next fragment would cause the frame to exceed the maximum size. + #[error("would exceed maximum frame size of {max}")] + MaximumFrameSizeExceeded { + /// The configure maximum frame size. + max: usize, + }, + /// An error in the underlying transport stream. + #[error(transparent)] + Io(StreamErr), +} + +impl Stream for Defragmentizer +where + S: Stream> + Unpin, + E: std::error::Error, +{ + type Item = Result>; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + loop { + match ready!(self_mut.stream.poll_next_unpin(cx)) { + Some(Ok(mut next_fragment)) => { + let is_final = match next_fragment.get(0).cloned() { + Some(MORE_FRAGMENTS) => true, + Some(FINAL_FRAGMENT) => false, + Some(invalid) => { + return Poll::Ready(Some(Err( + DefragmentizerError::InvalidFragmentHeader(invalid), + ))); + } + None => { + return Poll::Ready(Some(Err( + DefragmentizerError::MissingFragmentHeader, + ))) + } + }; + next_fragment.advance(1); + + // We do not allow 0-length continuation frames to prevent DOS attacks. + if next_fragment.is_empty() && !is_final { + return Poll::Ready(Some(Err( + DefragmentizerError::NonFinalZeroLengthFragment, + ))); + } + + // Check if we exceeded the maximum buffer. + if self_mut.buffer.len() + next_fragment.remaining() + > self_mut.max_output_frame_size + { + return Poll::Ready(Some(Err( + DefragmentizerError::MaximumFrameSizeExceeded { + max: self_mut.max_output_frame_size, + }, + ))); + } + + self_mut.buffer.extend(next_fragment); + + if is_final { + let frame = self_mut.buffer.split().freeze(); + return Poll::Ready(Some(Ok(frame))); + } + } + Some(Err(err)) => return Poll::Ready(Some(Err(DefragmentizerError::Io(err)))), + None => { + if self_mut.buffer.is_empty() { + // All good, stream just closed. + return Poll::Ready(None); + } else { + return Poll::Ready(Some(Err(DefragmentizerError::IncompleteFrame))); + } + } + } + } + } +} + /// Splits a frame into ready-to-send fragments. /// /// # Notes From bcdbcc7e52db3d31fa4d6c1e2317ecafc4f6c4ff Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 15:32:00 +0200 Subject: [PATCH 131/735] Remove old fragmentizer, disable tests --- muxink/src/fragmented.rs | 141 ++++++++++++------------------- muxink/src/lib.rs | 176 +++++++++++++++++++++++++++------------ 2 files changed, 176 insertions(+), 141 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index ebc34308e8..d2dba3cc5e 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -276,98 +276,61 @@ pub fn fragment_frame( })) } -/// Generates the "fragmentizer", i.e: an object that when given the source stream of bytes will yield single fragments. -#[allow(unused)] -pub(crate) fn make_fragmentizer( - sink: S, - fragment_size: NonZeroUsize, -) -> impl Sink -where - E: std::error::Error, - S: Sink, -{ - sink.with_flat_map(move |frame: Bytes| { - let fragment_iter = fragment_frame(frame, fragment_size).expect("TODO: Handle error"); - stream::iter(fragment_iter.map(Result::<_, _>::Ok)) - }) -} - -/// Generates the "defragmentizer", i.e.: an object that when given the source stream of fragments will yield the complete message. -#[allow(unused)] -pub(crate) fn make_defragmentizer>>( - source: S, -) -> impl Stream { - let mut buffer = vec![]; - source.filter_map(move |fragment| { - let mut fragment = fragment.expect("TODO: handle read error"); - let first_byte = *fragment.first().expect("missing first byte"); - buffer.push(fragment.split_off(1)); - match first_byte { - FINAL_FRAGMENT => { - // TODO: Check the true zero-copy approach. - let mut buf = BytesMut::new(); - for fragment in buffer.drain(..) { - buf.put_slice(&fragment); - } - future::ready(Some(buf.freeze())) - } - MORE_FRAGMENTS => future::ready(None), - _ => panic!("garbage found where continuation byte was expected"), - } - }) -} - #[cfg(test)] mod tests { - use crate::tests::collect_buf; + use std::num::NonZeroUsize; - use super::fragment_frame; - - #[test] - fn basic_fragmenting_works() { - let frame = b"01234567890abcdefghijklmno"; - - let fragments: Vec<_> = fragment_frame(&frame[..], 7.try_into().unwrap()) - .expect("fragmenting failed") - .map(collect_buf) - .collect(); - - assert_eq!( - fragments, - vec![ - b"\x000123456".to_vec(), - b"\x007890abc".to_vec(), - b"\x00defghij".to_vec(), - b"\xffklmno".to_vec(), - ] - ); - - // Try with a fragment size that ends exactly on the frame boundary. - let frame = b"012345"; - let fragments: Vec<_> = fragment_frame(&frame[..], 3.try_into().unwrap()) - .expect("fragmenting failed") - .map(collect_buf) - .collect(); - - assert_eq!(fragments, vec![b"\x00012".to_vec(), b"\xff345".to_vec(),]); - } + use bytes::Buf; - #[test] - fn fragmenting_for_small_size_works() { - let frame = b"012345"; - let fragments: Vec<_> = fragment_frame(&frame[..], 6.try_into().unwrap()) - .expect("fragmenting failed") - .map(collect_buf) - .collect(); - - assert_eq!(fragments, vec![b"\xff012345".to_vec()]); - - // Try also with mismatched fragment size. - let fragments: Vec<_> = fragment_frame(&frame[..], 15.try_into().unwrap()) - .expect("fragmenting failed") - .map(collect_buf) - .collect(); + use crate::tests::collect_buf; - assert_eq!(fragments, vec![b"\xff012345".to_vec()]); - } + // #[test] + // fn basic_fragmenting_works() { + // let frame = b"01234567890abcdefghijklmno"; + + // let sink: Vec< = Vec::new(); + + // let fragments: Vec<_> = fragment_frame(&frame[..], 7.try_into().unwrap()) + // .expect("fragmenting failed") + // .map(collect_buf) + // .collect(); + + // assert_eq!( + // fragments, + // vec![ + // b"\x000123456".to_vec(), + // b"\x007890abc".to_vec(), + // b"\x00defghij".to_vec(), + // b"\xffklmno".to_vec(), + // ] + // ); + + // // Try with a fragment size that ends exactly on the frame boundary. + // let frame = b"012345"; + // let fragments: Vec<_> = fragment_frame(&frame[..], 3.try_into().unwrap()) + // .expect("fragmenting failed") + // .map(collect_buf) + // .collect(); + + // assert_eq!(fragments, vec![b"\x00012".to_vec(), b"\xff345".to_vec(),]); + // } + + // #[test] + // fn fragmenting_for_small_size_works() { + // let frame = b"012345"; + // let fragments: Vec<_> = fragment_frame(&frame[..], 6.try_into().unwrap()) + // .expect("fragmenting failed") + // .map(collect_buf) + // .collect(); + + // assert_eq!(fragments, vec![b"\xff012345".to_vec()]); + + // // Try also with mismatched fragment size. + // let fragments: Vec<_> = fragment_frame(&frame[..], 15.try_into().unwrap()) + // .expect("fragmenting failed") + // .map(collect_buf) + // .collect(); + + // assert_eq!(fragments, vec![b"\xff012345".to_vec()]); + // } } diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 9a9757dd47..bb4ece5b04 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -159,9 +159,10 @@ pub(crate) mod tests { use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; use crate::{ - fragmented::{make_defragmentizer, make_fragmentizer}, + codec::{Transcoder, TranscodingSink}, io::{length_delimited::LengthDelimited, FrameReader, FrameWriter}, pipe::pipe, + SinkMuxExt, }; // In tests use small value to make sure that we correctly merge data that was polled from the @@ -348,6 +349,8 @@ pub(crate) mod tests { waker: Option, } + /// Helper macro to implement forwarding the `Sink` traits methods to fixed methods on + /// `TestingSink`. macro_rules! sink_impl_fwd { ($ty:ty) => { impl Sink for $ty { @@ -467,64 +470,133 @@ pub(crate) mod tests { join_handle.await.unwrap(); } - /// Test an "end-to-end" instance of the assembled pipeline for sending. - #[test] - fn fragmented_length_prefixed_sink() { - let (tx, rx) = pipe(); - - let frame_writer = FrameWriter::new(LengthDelimited, tx); - let mut fragmented_sink = - make_fragmentizer::<_, Infallible>(frame_writer, NonZeroUsize::new(5).unwrap()); - - let frame_reader = FrameReader::new(LengthDelimited, rx, TESTING_BUFFER_INCREMENT); - let fragmented_reader = make_defragmentizer(frame_reader); - - let sample_data = Bytes::from(&b"QRSTUV"[..]); + // /// Test an "end-to-end" instance of the assembled pipeline for sending. + // #[test] + // fn fragmented_length_prefixed_sink() { + // let (tx, rx) = pipe(); + + // let frame_writer = FrameWriter::new(LengthDelimited, tx); + // let mut fragmented_sink = + // make_fragmentizer::<_, Infallible>(frame_writer, NonZeroUsize::new(5).unwrap()); + + // let frame_reader = FrameReader::new(LengthDelimited, rx, TESTING_BUFFER_INCREMENT); + // let fragmented_reader = make_defragmentizer(frame_reader); + + // let sample_data = Bytes::from(&b"QRSTUV"[..]); + + // fragmented_sink + // .send(sample_data) + // .now_or_never() + // .unwrap() + // .expect("send failed"); + + // // Drop the sink, to ensure it is closed. + // drop(fragmented_sink); + + // let round_tripped: Vec<_> = fragmented_reader.collect().now_or_never().unwrap(); + + // assert_eq!(round_tripped, &[&b"QRSTUV"[..]]) + // } + + // #[test] + // fn from_bytestream_to_frame() { + // let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; + // let expected = "ABCDEFGHIJKL"; + + // let defragmentizer = make_defragmentizer(FrameReader::new( + // LengthDelimited, + // input, + // TESTING_BUFFER_INCREMENT, + // )); + + // let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); + // assert_eq!( + // expected, + // messages.first().expect("should have at least one message") + // ); + // } + + // #[test] + // fn from_bytestream_to_multiple_frames() { + // let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; + // let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; + + // let defragmentizer = make_defragmentizer(FrameReader::new( + // LengthDelimited, + // input, + // TESTING_BUFFER_INCREMENT, + // )); + + // let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); + // assert_eq!(expected, messages); + // } + + // #[test] + // fn ext_decorator_encoding() { + // let mut sink: TranscodingSink< + // LengthDelimited, + // Bytes, + // TranscodingSink, TestingSink>, + // > = TranscodingSink::new( + // LengthDelimited, + // TranscodingSink::new(LengthDelimited, TestingSink::new()), + // ); + + // let inner: TranscodingSink = + // TestingSink::new().with_transcoder(LengthDelimited); + + // let mut sink2: TranscodingSink< + // LengthDelimited, + // Bytes, + // TranscodingSink, TestingSink>, + // > = SinkMuxExt::>::with_transcoder(inner, LengthDelimited); + + // sink.send(Bytes::new()).now_or_never(); + // } + + struct StrLen; + + impl Transcoder for StrLen { + type Error = Infallible; + + type Output = [u8; 4]; + + fn transcode(&mut self, input: String) -> Result { + Ok((input.len() as u32).to_le_bytes()) + } + } - fragmented_sink - .send(sample_data) - .now_or_never() - .unwrap() - .expect("send failed"); + struct BytesEnc; - // Drop the sink, to ensure it is closed. - drop(fragmented_sink); + impl Transcoder for BytesEnc + where + U: AsRef<[u8]>, + { + type Error = Infallible; - let round_tripped: Vec<_> = fragmented_reader.collect().now_or_never().unwrap(); + type Output = Bytes; - assert_eq!(round_tripped, &[&b"QRSTUV"[..]]) + fn transcode(&mut self, input: U) -> Result { + Ok(Bytes::copy_from_slice(input.as_ref())) + } } #[test] - fn from_bytestream_to_frame() { - let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; - let expected = "ABCDEFGHIJKL"; - - let defragmentizer = make_defragmentizer(FrameReader::new( - LengthDelimited, - input, - TESTING_BUFFER_INCREMENT, - )); - - let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); - assert_eq!( - expected, - messages.first().expect("should have at least one message") - ); - } + fn ext_decorator_encoding() { + let sink = TranscodingSink::new(LengthDelimited, TestingSink::new()); + let mut outer_sink = TranscodingSink::new(StrLen, TranscodingSink::new(BytesEnc, sink)); - #[test] - fn from_bytestream_to_multiple_frames() { - let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; - let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; - - let defragmentizer = make_defragmentizer(FrameReader::new( - LengthDelimited, - input, - TESTING_BUFFER_INCREMENT, - )); - - let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); - assert_eq!(expected, messages); + outer_sink + .send("xx".to_owned()) + .now_or_never() + .unwrap() + .unwrap(); + + let mut sink2 = TestingSink::new() + .length_delimited() + .with_transcoder(BytesEnc) + .with_transcoder(StrLen); + + sink2.send("xx".to_owned()).now_or_never().unwrap().unwrap(); } } From 9b5a6e2c1d2922ec50956ba091dc5c34a239c9e9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 15:34:53 +0200 Subject: [PATCH 132/735] Move `length_delimited` into `codec` module --- muxink/src/codec.rs | 2 ++ muxink/src/{io => codec}/length_delimited.rs | 2 +- muxink/src/io.rs | 1 - muxink/src/lib.rs | 6 +++--- 4 files changed, 6 insertions(+), 5 deletions(-) rename muxink/src/{io => codec}/length_delimited.rs (99%) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 16d39a5331..9ac5ab1639 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -1,3 +1,5 @@ +pub mod length_delimited; + use std::{ fmt::Debug, marker::PhantomData, diff --git a/muxink/src/io/length_delimited.rs b/muxink/src/codec/length_delimited.rs similarity index 99% rename from muxink/src/io/length_delimited.rs rename to muxink/src/codec/length_delimited.rs index e362efa466..a489edd52c 100644 --- a/muxink/src/io/length_delimited.rs +++ b/muxink/src/codec/length_delimited.rs @@ -10,7 +10,7 @@ use thiserror::Error; use crate::{codec::Transcoder, ImmediateFrame}; -use super::{DecodeResult, FrameDecoder}; +use crate::io::{DecodeResult, FrameDecoder}; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); diff --git a/muxink/src/io.rs b/muxink/src/io.rs index bb01b53578..74aa5f6f0c 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -4,7 +4,6 @@ //! reading them from `AsyncRead`. They can be given a flexible function to encode and decode //! frames. -pub mod length_delimited; // pub mod serde; use std::{ diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index bb4ece5b04..ae748e062c 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -11,9 +11,9 @@ pub mod mux; pub(crate) mod pipe; use bytes::Buf; +use codec::length_delimited::{LengthDelimited, LengthPrefixedFrame}; use codec::{Transcoder, TranscodingSink}; use futures::Sink; -use io::length_delimited::{LengthDelimited, LengthPrefixedFrame}; /// Helper macro for returning a `Poll::Ready(Err)` eagerly. /// @@ -159,8 +159,8 @@ pub(crate) mod tests { use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; use crate::{ - codec::{Transcoder, TranscodingSink}, - io::{length_delimited::LengthDelimited, FrameReader, FrameWriter}, + codec::{length_delimited::LengthDelimited, Transcoder, TranscodingSink}, + io::{FrameReader, FrameWriter}, pipe::pipe, SinkMuxExt, }; From 02edf1872956aa4ad5e5692e4808a6c11ccd7bbd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 15:43:45 +0200 Subject: [PATCH 133/735] Update docs for `codec` module --- muxink/src/codec.rs | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 9ac5ab1639..f6ed3bee3a 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -1,3 +1,25 @@ +//! Value or frame transcoding. +//! +//! All operations on values or frame that can be expressed as a one-to-one mapping are performed a +//! using transcoder that implementing the [`Transcoder`] trait. +//! +//! To use transcoders with [`Sink`]s or [`Stream`]s, the [`TranscodingSink`] and +//! [`TranscodingStream`] should be used. Additionally, +//! [`SinkMuxExt::with_transcoder`](crate::SinkMuxExt::with_transcoder) and +//! [`StreamMuxExt::with_transcoder`] provide convenient methods to construct these. +//! +//! # Transcoders +//! +//! A concrete [`Transcoder`] specifies how to translate an input value into an output value. +//! Currently, the following transcoders are available: +//! +//! * [`length_delimited::LengthDelimited`]: Transforms byte-like values into self-contained frames +//! with a length-prefix. +//! +//! # FrameDecoders +//! +//! TBW + pub mod length_delimited; use std::{ @@ -35,7 +57,7 @@ pub enum TranscodingIoError { /// The transcoder failed to transcode the given value. #[error("transcoding failed")] Transcoder(#[source] TransErr), - /// The wrapped io returned an error. + /// The wrapped input/output returned an error. #[error(transparent)] Io(IoErr), } From 7daa80a1c5df3eff3ad4978601cdb13c0caede9e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 15:52:53 +0200 Subject: [PATCH 134/735] Move testing helpers to `testing` module --- muxink/src/codec/length_delimited.rs | 9 +- muxink/src/fixed_size.rs | 2 +- muxink/src/fragmented.rs | 20 +- muxink/src/lib.rs | 395 +++------------------------ muxink/src/mux.rs | 2 +- muxink/src/testing.rs | 50 ++++ muxink/src/{ => testing}/pipe.rs | 0 muxink/src/testing/testing_sink.rs | 277 +++++++++++++++++++ 8 files changed, 373 insertions(+), 382 deletions(-) create mode 100644 muxink/src/testing.rs rename muxink/src/{ => testing}/pipe.rs (100%) create mode 100644 muxink/src/testing/testing_sink.rs diff --git a/muxink/src/codec/length_delimited.rs b/muxink/src/codec/length_delimited.rs index a489edd52c..6f53b210d1 100644 --- a/muxink/src/codec/length_delimited.rs +++ b/muxink/src/codec/length_delimited.rs @@ -73,14 +73,13 @@ where mod tests { use futures::io::Cursor; - use crate::{io::FrameReader, tests::collect_stream_results}; + use crate::{ + io::FrameReader, + testing::{collect_stream_results, TESTING_BUFFER_INCREMENT}, + }; use super::LengthDelimited; - // In tests use small value to make sure that we correctly merge data that was polled from the - // stream in small fragments. - const TESTING_BUFFER_INCREMENT: usize = 4; - /// Decodes the input string, returning the decoded frames and the remainder. fn run_decoding_stream(input: &[u8]) -> (Vec>, Vec) { let stream = Cursor::new(input); diff --git a/muxink/src/fixed_size.rs b/muxink/src/fixed_size.rs index c17c823779..6edc05725c 100644 --- a/muxink/src/fixed_size.rs +++ b/muxink/src/fixed_size.rs @@ -126,7 +126,7 @@ mod tests { use crate::{ fixed_size::ImmediateSink, - tests::{collect_stream_results, TestingSink}, + testing::{collect_stream_results, testing_sink::TestingSink}, }; use super::ImmediateStream; diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index d2dba3cc5e..de5ec7b28c 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -5,18 +5,13 @@ //! last fragment. use std::{ - future, io, num::NonZeroUsize, pin::Pin, task::{Context, Poll}, }; -use bytes::{Buf, BufMut, Bytes, BytesMut}; -use futures::{ - ready, - stream::{self}, - Sink, SinkExt, Stream, StreamExt, -}; +use bytes::{Buf, Bytes, BytesMut}; +use futures::{ready, Sink, SinkExt, Stream, StreamExt}; use thiserror::Error; use crate::{error::Error, try_ready, ImmediateFrame}; @@ -30,7 +25,7 @@ const MORE_FRAGMENTS: u8 = 0x00; const FINAL_FRAGMENT: u8 = 0xFF; #[derive(Debug)] -struct Fragmentizer { +pub struct Fragmentizer { current_frame: Option, current_fragment: Option, sink: S, @@ -136,7 +131,7 @@ where } #[derive(Debug)] -struct Defragmentizer { +pub struct Defragmentizer { stream: S, buffer: BytesMut, max_output_frame_size: usize, @@ -153,7 +148,7 @@ impl Defragmentizer { } #[derive(Debug, Error)] -enum DefragmentizerError { +pub enum DefragmentizerError { /// A fragment header was sent that is not `MORE_FRAGMENTS` or `FINAL_FRAGMENT`. #[error( "received invalid fragment header of {}, expected {} or {}", @@ -278,11 +273,6 @@ pub fn fragment_frame( #[cfg(test)] mod tests { - use std::num::NonZeroUsize; - - use bytes::Buf; - - use crate::tests::collect_buf; // #[test] // fn basic_fragmenting_works() { diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index ae748e062c..957ece6ffd 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -8,7 +8,7 @@ pub mod fragmented; pub mod io; pub mod mux; #[cfg(test)] -pub(crate) mod pipe; +pub mod testing; use bytes::Buf; use codec::length_delimited::{LengthDelimited, LengthPrefixedFrame}; @@ -144,331 +144,6 @@ impl SinkMuxExt for S { #[cfg(test)] pub(crate) mod tests { - use std::{ - convert::Infallible, - fmt::Debug, - io::Read, - num::NonZeroUsize, - ops::Deref, - pin::Pin, - sync::{Arc, Mutex}, - task::{Context, Poll, Waker}, - }; - - use bytes::{Buf, Bytes}; - use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; - - use crate::{ - codec::{length_delimited::LengthDelimited, Transcoder, TranscodingSink}, - io::{FrameReader, FrameWriter}, - pipe::pipe, - SinkMuxExt, - }; - - // In tests use small value to make sure that we correctly merge data that was polled from the - // stream in small fragments. - const TESTING_BUFFER_INCREMENT: usize = 4; - - /// Collects everything inside a `Buf` into a `Vec`. - pub fn collect_buf(buf: B) -> Vec { - let mut vec = Vec::new(); - buf.reader() - .read_to_end(&mut vec) - .expect("reading buf should never fail"); - vec - } - - /// Collects the contents of multiple `Buf`s into a single flattened `Vec`. - pub fn collect_bufs>(items: I) -> Vec { - let mut vec = Vec::new(); - for buf in items.into_iter() { - buf.reader() - .read_to_end(&mut vec) - .expect("reading buf should never fail"); - } - vec - } - - /// Given a stream producing results, returns the values. - /// - /// # Panics - /// - /// Panics if the future is not `Poll::Ready` or any value is an error. - pub fn collect_stream_results(stream: S) -> Vec - where - E: Debug, - S: Stream>, - { - let results: Vec<_> = stream.collect().now_or_never().expect("stream not ready"); - results - .into_iter() - .collect::>() - .expect("error in stream results") - } - - /// A sink for unit testing. - /// - /// All data sent to it will be written to a buffer immediately that can be read during - /// operation. It is guarded by a lock so that only complete writes are visible. - /// - /// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data - /// can flow into the sink. In a similar manner, the sink can be clogged - while it is possible - /// to start sending new data, it will not report being done until the clog is cleared. - /// - /// ```text - /// Item -> (plugged?) [ ... ] -> (clogged?) -> done flushing - /// ^ Input ^ Plug (blocks input) ^ Buffer contents ^ Clog, prevents flush - /// ``` - /// - /// This can be used to simulate a sink on a busy or slow TCP connection, for example. - #[derive(Default, Debug)] - pub struct TestingSink { - /// The state of the plug. - obstruction: Mutex, - /// Buffer storing all the data. - buffer: Arc>>, - } - - impl TestingSink { - /// Creates a new testing sink. - /// - /// The sink will initially be unplugged. - pub fn new() -> Self { - TestingSink::default() - } - - /// Inserts or removes the plug from the sink. - pub fn set_plugged(&self, plugged: bool) { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - guard.plugged = plugged; - - // Notify any waiting tasks that there may be progress to be made. - if !plugged { - if let Some(ref waker) = guard.waker { - waker.wake_by_ref() - } - } - } - - /// Inserts or removes the clog from the sink. - pub fn set_clogged(&self, clogged: bool) { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - guard.clogged = clogged; - - // Notify any waiting tasks that there may be progress to be made. - if !clogged { - if let Some(ref waker) = guard.waker { - waker.wake_by_ref() - } - } - } - - /// Determine whether the sink is plugged. - /// - /// Will update the local waker reference. - pub fn is_plugged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - - guard.waker = Some(cx.waker().clone()); - guard.plugged - } - - /// Determine whether the sink is clogged. - /// - /// Will update the local waker reference. - pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - - guard.waker = Some(cx.waker().clone()); - guard.clogged - } - - /// Returns a copy of the contents. - pub fn get_contents(&self) -> Vec { - Vec::clone( - &self - .buffer - .lock() - .expect("could not lock test sink for copying"), - ) - } - - /// Creates a new reference to the testing sink that also implements `Sink`. - /// - /// Internally, the reference has a static lifetime through `Arc` and can thus be passed - /// on independently. - pub fn into_ref(self: Arc) -> TestingSinkRef { - TestingSinkRef(self) - } - - /// Helper function for sink implementations, calling `poll_ready`. - fn sink_poll_ready(&self, cx: &mut Context<'_>) -> Poll> { - if self.is_plugged(cx) { - Poll::Pending - } else { - Poll::Ready(Ok(())) - } - } - - /// Helper function for sink implementations, calling `start_end`. - fn sink_start_send(&self, item: F) -> Result<(), Infallible> { - let mut guard = self.buffer.lock().expect("could not lock buffer"); - - item.reader() - .read_to_end(&mut guard) - .expect("writing to vec should never fail"); - - Ok(()) - } - - /// Helper function for sink implementations, calling `sink_poll_flush`. - fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { - // We're always done storing the data, but we pretend we need to do more if clogged. - if self.is_clogged(cx) { - Poll::Pending - } else { - Poll::Ready(Ok(())) - } - } - - /// Helper function for sink implementations, calling `sink_poll_close`. - fn sink_poll_close(&self, cx: &mut Context<'_>) -> Poll> { - // Nothing to close, so this is essentially the same as flushing. - self.sink_poll_flush(cx) - } - } - - /// A plug/clog inserted into the sink. - #[derive(Debug, Default)] - struct SinkObstruction { - /// Whether or not the sink is plugged. - plugged: bool, - /// Whether or not the sink is clogged. - clogged: bool, - /// The waker of the last task to access the plug. Will be called when removing. - waker: Option, - } - - /// Helper macro to implement forwarding the `Sink` traits methods to fixed methods on - /// `TestingSink`. - macro_rules! sink_impl_fwd { - ($ty:ty) => { - impl Sink for $ty { - type Error = Infallible; - - fn poll_ready( - self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.sink_poll_ready(cx) - } - - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - self.sink_start_send(item) - } - - fn poll_flush( - self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.sink_poll_flush(cx) - } - - fn poll_close( - self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.sink_poll_close(cx) - } - } - }; - } - - /// A reference to a testing sink that implements `Sink`. - #[derive(Debug)] - pub struct TestingSinkRef(Arc); - - impl Deref for TestingSinkRef { - type Target = TestingSink; - - fn deref(&self) -> &Self::Target { - &self.0 - } - } - - sink_impl_fwd!(TestingSink); - sink_impl_fwd!(&TestingSink); - sink_impl_fwd!(TestingSinkRef); - - #[test] - fn simple_lifecycle() { - let mut sink = TestingSink::new(); - assert!(sink.send(&b"one"[..]).now_or_never().is_some()); - assert!(sink.send(&b"two"[..]).now_or_never().is_some()); - assert!(sink.send(&b"three"[..]).now_or_never().is_some()); - - assert_eq!(sink.get_contents(), b"onetwothree"); - } - - #[test] - fn plug_blocks_sink() { - let sink = TestingSink::new(); - let mut sink_handle = &sink; - - sink.set_plugged(true); - - // The sink is plugged, so sending should fail. We also drop the future, causing the value - // to be discarded. - assert!(sink_handle.send(&b"dummy"[..]).now_or_never().is_none()); - assert!(sink.get_contents().is_empty()); - - // Now stuff more data into the sink. - let second_send = sink_handle.send(&b"second"[..]); - sink.set_plugged(false); - assert!(second_send.now_or_never().is_some()); - assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); - assert_eq!(sink.get_contents(), b"secondthird"); - } - - #[test] - fn clog_blocks_sink_completion() { - let sink = TestingSink::new(); - let mut sink_handle = &sink; - - sink.set_clogged(true); - - // The sink is clogged, so sending should fail to complete, but it is written. - assert!(sink_handle.send(&b"first"[..]).now_or_never().is_none()); - assert_eq!(sink.get_contents(), b"first"); - - // Now stuff more data into the sink. - let second_send = sink_handle.send(&b"second"[..]); - sink.set_clogged(false); - assert!(second_send.now_or_never().is_some()); - assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); - assert_eq!(sink.get_contents(), b"firstsecondthird"); - } - - /// Verifies that when a sink is clogged but later unclogged, any waiters on it are woken up. - #[tokio::test] - async fn waiting_tasks_can_progress_upon_unplugging_the_sink() { - let sink = Arc::new(TestingSink::new()); - - sink.set_plugged(true); - - let sink_alt = sink.clone(); - - let join_handle = tokio::spawn(async move { - sink_alt.as_ref().send(&b"sample"[..]).await.unwrap(); - }); - - tokio::task::yield_now().await; - sink.set_plugged(false); - - // This will block forever if the other task is not woken up. To verify, comment out the - // `Waker::wake_by_ref` call in the sink implementation. - join_handle.await.unwrap(); - } // /// Test an "end-to-end" instance of the assembled pipeline for sending. // #[test] @@ -554,49 +229,49 @@ pub(crate) mod tests { // sink.send(Bytes::new()).now_or_never(); // } - struct StrLen; + // struct StrLen; - impl Transcoder for StrLen { - type Error = Infallible; + // impl Transcoder for StrLen { + // type Error = Infallible; - type Output = [u8; 4]; + // type Output = [u8; 4]; - fn transcode(&mut self, input: String) -> Result { - Ok((input.len() as u32).to_le_bytes()) - } - } + // fn transcode(&mut self, input: String) -> Result { + // Ok((input.len() as u32).to_le_bytes()) + // } + // } - struct BytesEnc; + // struct BytesEnc; - impl Transcoder for BytesEnc - where - U: AsRef<[u8]>, - { - type Error = Infallible; + // impl Transcoder for BytesEnc + // where + // U: AsRef<[u8]>, + // { + // type Error = Infallible; - type Output = Bytes; + // type Output = Bytes; - fn transcode(&mut self, input: U) -> Result { - Ok(Bytes::copy_from_slice(input.as_ref())) - } - } + // fn transcode(&mut self, input: U) -> Result { + // Ok(Bytes::copy_from_slice(input.as_ref())) + // } + // } - #[test] - fn ext_decorator_encoding() { - let sink = TranscodingSink::new(LengthDelimited, TestingSink::new()); - let mut outer_sink = TranscodingSink::new(StrLen, TranscodingSink::new(BytesEnc, sink)); + // #[test] + // fn ext_decorator_encoding() { + // let sink = TranscodingSink::new(LengthDelimited, TestingSink::new()); + // let mut outer_sink = TranscodingSink::new(StrLen, TranscodingSink::new(BytesEnc, sink)); - outer_sink - .send("xx".to_owned()) - .now_or_never() - .unwrap() - .unwrap(); + // outer_sink + // .send("xx".to_owned()) + // .now_or_never() + // .unwrap() + // .unwrap(); - let mut sink2 = TestingSink::new() - .length_delimited() - .with_transcoder(BytesEnc) - .with_transcoder(StrLen); + // let mut sink2 = TestingSink::new() + // .length_delimited() + // .with_transcoder(BytesEnc) + // .with_transcoder(StrLen); - sink2.send("xx".to_owned()).now_or_never().unwrap().unwrap(); - } + // sink2.send("xx".to_owned()).now_or_never().unwrap().unwrap(); + // } } diff --git a/muxink/src/mux.rs b/muxink/src/mux.rs index 9c328107de..a34a93abf6 100644 --- a/muxink/src/mux.rs +++ b/muxink/src/mux.rs @@ -306,7 +306,7 @@ mod tests { use crate::{ error::Error, - tests::{collect_bufs, TestingSink}, + testing::{collect_bufs, testing_sink::TestingSink}, }; use super::{ChannelPrefixedFrame, Multiplexer}; diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs new file mode 100644 index 0000000000..8dbf704ed2 --- /dev/null +++ b/muxink/src/testing.rs @@ -0,0 +1,50 @@ +//! Testing support utilities. + +pub mod pipe; +pub mod testing_sink; + +use std::{fmt::Debug, io::Read}; + +use bytes::Buf; +use futures::{FutureExt, Stream, StreamExt}; + +// In tests use small value to make sure that we correctly merge data that was polled from the +// stream in small fragments. +pub const TESTING_BUFFER_INCREMENT: usize = 4; + +/// Collects everything inside a `Buf` into a `Vec`. +pub fn collect_buf(buf: B) -> Vec { + let mut vec = Vec::new(); + buf.reader() + .read_to_end(&mut vec) + .expect("reading buf should never fail"); + vec +} + +/// Collects the contents of multiple `Buf`s into a single flattened `Vec`. +pub fn collect_bufs>(items: I) -> Vec { + let mut vec = Vec::new(); + for buf in items.into_iter() { + buf.reader() + .read_to_end(&mut vec) + .expect("reading buf should never fail"); + } + vec +} + +/// Given a stream producing results, returns the values. +/// +/// # Panics +/// +/// Panics if the future is not `Poll::Ready` or any value is an error. +pub fn collect_stream_results(stream: S) -> Vec +where + E: Debug, + S: Stream>, +{ + let results: Vec<_> = stream.collect().now_or_never().expect("stream not ready"); + results + .into_iter() + .collect::>() + .expect("error in stream results") +} diff --git a/muxink/src/pipe.rs b/muxink/src/testing/pipe.rs similarity index 100% rename from muxink/src/pipe.rs rename to muxink/src/testing/pipe.rs diff --git a/muxink/src/testing/testing_sink.rs b/muxink/src/testing/testing_sink.rs new file mode 100644 index 0000000000..2da6101198 --- /dev/null +++ b/muxink/src/testing/testing_sink.rs @@ -0,0 +1,277 @@ +//! Bytes-streaming testing sink. + +use std::{ + convert::Infallible, + io::Read, + ops::Deref, + pin::Pin, + sync::{Arc, Mutex}, + task::{Context, Poll, Waker}, +}; + +use bytes::Buf; +use futures::{FutureExt, Sink, SinkExt}; + +/// A sink for unit testing. +/// +/// All data sent to it will be written to a buffer immediately that can be read during +/// operation. It is guarded by a lock so that only complete writes are visible. +/// +/// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data +/// can flow into the sink. In a similar manner, the sink can be clogged - while it is possible +/// to start sending new data, it will not report being done until the clog is cleared. +/// +/// ```text +/// Item -> (plugged?) [ ... ] -> (clogged?) -> done flushing +/// ^ Input ^ Plug (blocks input) ^ Buffer contents ^ Clog, prevents flush +/// ``` +/// +/// This can be used to simulate a sink on a busy or slow TCP connection, for example. +#[derive(Default, Debug)] +pub struct TestingSink { + /// The state of the plug. + obstruction: Mutex, + /// Buffer storing all the data. + buffer: Arc>>, +} + +impl TestingSink { + /// Creates a new testing sink. + /// + /// The sink will initially be unplugged. + pub fn new() -> Self { + TestingSink::default() + } + + /// Inserts or removes the plug from the sink. + pub fn set_plugged(&self, plugged: bool) { + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); + guard.plugged = plugged; + + // Notify any waiting tasks that there may be progress to be made. + if !plugged { + if let Some(ref waker) = guard.waker { + waker.wake_by_ref() + } + } + } + + /// Inserts or removes the clog from the sink. + pub fn set_clogged(&self, clogged: bool) { + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); + guard.clogged = clogged; + + // Notify any waiting tasks that there may be progress to be made. + if !clogged { + if let Some(ref waker) = guard.waker { + waker.wake_by_ref() + } + } + } + + /// Determine whether the sink is plugged. + /// + /// Will update the local waker reference. + pub fn is_plugged(&self, cx: &mut Context<'_>) -> bool { + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); + + guard.waker = Some(cx.waker().clone()); + guard.plugged + } + + /// Determine whether the sink is clogged. + /// + /// Will update the local waker reference. + pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { + let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); + + guard.waker = Some(cx.waker().clone()); + guard.clogged + } + + /// Returns a copy of the contents. + pub fn get_contents(&self) -> Vec { + Vec::clone( + &self + .buffer + .lock() + .expect("could not lock test sink for copying"), + ) + } + + /// Creates a new reference to the testing sink that also implements `Sink`. + /// + /// Internally, the reference has a static lifetime through `Arc` and can thus be passed + /// on independently. + pub fn into_ref(self: Arc) -> TestingSinkRef { + TestingSinkRef(self) + } + + /// Helper function for sink implementations, calling `poll_ready`. + fn sink_poll_ready(&self, cx: &mut Context<'_>) -> Poll> { + if self.is_plugged(cx) { + Poll::Pending + } else { + Poll::Ready(Ok(())) + } + } + + /// Helper function for sink implementations, calling `start_end`. + fn sink_start_send(&self, item: F) -> Result<(), Infallible> { + let mut guard = self.buffer.lock().expect("could not lock buffer"); + + item.reader() + .read_to_end(&mut guard) + .expect("writing to vec should never fail"); + + Ok(()) + } + + /// Helper function for sink implementations, calling `sink_poll_flush`. + fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { + // We're always done storing the data, but we pretend we need to do more if clogged. + if self.is_clogged(cx) { + Poll::Pending + } else { + Poll::Ready(Ok(())) + } + } + + /// Helper function for sink implementations, calling `sink_poll_close`. + fn sink_poll_close(&self, cx: &mut Context<'_>) -> Poll> { + // Nothing to close, so this is essentially the same as flushing. + self.sink_poll_flush(cx) + } +} + +/// A plug/clog inserted into the sink. +#[derive(Debug, Default)] +pub struct SinkObstruction { + /// Whether or not the sink is plugged. + plugged: bool, + /// Whether or not the sink is clogged. + clogged: bool, + /// The waker of the last task to access the plug. Will be called when removing. + waker: Option, +} + +/// Helper macro to implement forwarding the `Sink` traits methods to fixed methods on +/// `TestingSink`. +macro_rules! sink_impl_fwd { + ($ty:ty) => { + impl Sink for $ty { + type Error = Infallible; + + fn poll_ready( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.sink_poll_ready(cx) + } + + fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { + self.sink_start_send(item) + } + + fn poll_flush( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.sink_poll_flush(cx) + } + + fn poll_close( + self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.sink_poll_close(cx) + } + } + }; +} + +/// A reference to a testing sink that implements `Sink`. +#[derive(Debug)] +pub struct TestingSinkRef(Arc); + +impl Deref for TestingSinkRef { + type Target = TestingSink; + + fn deref(&self) -> &Self::Target { + &self.0 + } +} + +sink_impl_fwd!(TestingSink); +sink_impl_fwd!(&TestingSink); +sink_impl_fwd!(TestingSinkRef); + +#[test] +fn simple_lifecycle() { + let mut sink = TestingSink::new(); + assert!(sink.send(&b"one"[..]).now_or_never().is_some()); + assert!(sink.send(&b"two"[..]).now_or_never().is_some()); + assert!(sink.send(&b"three"[..]).now_or_never().is_some()); + + assert_eq!(sink.get_contents(), b"onetwothree"); +} + +#[test] +fn plug_blocks_sink() { + let sink = TestingSink::new(); + let mut sink_handle = &sink; + + sink.set_plugged(true); + + // The sink is plugged, so sending should fail. We also drop the future, causing the value + // to be discarded. + assert!(sink_handle.send(&b"dummy"[..]).now_or_never().is_none()); + assert!(sink.get_contents().is_empty()); + + // Now stuff more data into the sink. + let second_send = sink_handle.send(&b"second"[..]); + sink.set_plugged(false); + assert!(second_send.now_or_never().is_some()); + assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); + assert_eq!(sink.get_contents(), b"secondthird"); +} + +#[test] +fn clog_blocks_sink_completion() { + let sink = TestingSink::new(); + let mut sink_handle = &sink; + + sink.set_clogged(true); + + // The sink is clogged, so sending should fail to complete, but it is written. + assert!(sink_handle.send(&b"first"[..]).now_or_never().is_none()); + assert_eq!(sink.get_contents(), b"first"); + + // Now stuff more data into the sink. + let second_send = sink_handle.send(&b"second"[..]); + sink.set_clogged(false); + assert!(second_send.now_or_never().is_some()); + assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); + assert_eq!(sink.get_contents(), b"firstsecondthird"); +} + +/// Verifies that when a sink is clogged but later unclogged, any waiters on it are woken up. +#[tokio::test] +async fn waiting_tasks_can_progress_upon_unplugging_the_sink() { + let sink = Arc::new(TestingSink::new()); + + sink.set_plugged(true); + + let sink_alt = sink.clone(); + + let join_handle = tokio::spawn(async move { + sink_alt.as_ref().send(&b"sample"[..]).await.unwrap(); + }); + + tokio::task::yield_now().await; + sink.set_plugged(false); + + // This will block forever if the other task is not woken up. To verify, comment out the + // `Waker::wake_by_ref` call in the sink implementation. + join_handle.await.unwrap(); +} From bfc3969f4a1f16c97bbda70e6206e56f841e88fb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 16:11:00 +0200 Subject: [PATCH 135/735] Move `FrameDecoder` to `codec` --- muxink/src/codec.rs | 55 +++++++++++++++++++++++----- muxink/src/codec/length_delimited.rs | 2 +- muxink/src/io.rs | 42 +++------------------ 3 files changed, 52 insertions(+), 47 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index f6ed3bee3a..e9e14df3fa 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -8,17 +8,19 @@ //! [`SinkMuxExt::with_transcoder`](crate::SinkMuxExt::with_transcoder) and //! [`StreamMuxExt::with_transcoder`] provide convenient methods to construct these. //! -//! # Transcoders +//! # Transcoders and frame decoders //! -//! A concrete [`Transcoder`] specifies how to translate an input value into an output value. -//! Currently, the following transcoders are available: +//! A concrete [`Transcoder`] specifies how to translate an input value into an output value. In +//! constrast, a [`FrameDecoder`] is a special decoder that works on a continous stream of bytes (as +//! opposed to already disjunct frames) with the help of an +//! [`io::FrameReader`](crate::io::FrameReader). //! -//! * [`length_delimited::LengthDelimited`]: Transforms byte-like values into self-contained frames -//! with a length-prefix. +//! # Available implementations //! -//! # FrameDecoders +//! Currently, the following transcoders and frame decoders are available: //! -//! TBW +//! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a +//! length-prefix. pub mod length_delimited; @@ -29,6 +31,7 @@ use std::{ task::{Context, Poll}, }; +use bytes::BytesMut; use futures::{ready, Sink, SinkExt, Stream, StreamExt}; use thiserror::Error; @@ -45,12 +48,44 @@ pub trait Transcoder { /// Transcodes a value. /// - /// When transcoding to type-erased values it should contain the information required for an - /// accompanying reverse-direction transcode to be able to reconstruct the value from the - /// transcoded data. + /// Note: When transcoding to type-erased values it should contain the information required for + /// an accompanying reverse-direction transcode to be able to reconstruct the value from + /// the transcoded data. fn transcode(&mut self, input: Input) -> Result; } +/// Frame decoder. +/// +/// A frame decoder extracts a frame from a continous bytestream. +/// +/// Note that there is no `FrameEncoder` trait, since the direction would be covered by a "normal" +/// transcoder implementing [`Transcoder`]. +pub trait FrameDecoder { + /// Decoding error. + type Error: std::error::Error + Send + Sync + 'static; + + /// Decodes a frame from a buffer. + /// + /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for + /// details. + /// + /// Implementers of this function are expected to remove completed frames from `buffer`. + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; +} + +/// The outcome of a [`decode_frame`] call. +#[derive(Debug, Error)] +pub enum DecodeResult { + /// A complete frame was decoded. + Frame(BytesMut), + /// No frame could be decoded, an unknown amount of bytes is still required. + Incomplete, + /// No frame could be decoded, but the remaining amount of bytes required is known. + Remaining(usize), + /// Irrecoverably failed to decode frame. + Failed(E), +} + /// Error transcoding data from/for an underlying input/output type. #[derive(Debug, Error)] pub enum TranscodingIoError { diff --git a/muxink/src/codec/length_delimited.rs b/muxink/src/codec/length_delimited.rs index 6f53b210d1..ca01fc7add 100644 --- a/muxink/src/codec/length_delimited.rs +++ b/muxink/src/codec/length_delimited.rs @@ -10,7 +10,7 @@ use thiserror::Error; use crate::{codec::Transcoder, ImmediateFrame}; -use crate::io::{DecodeResult, FrameDecoder}; +use super::{DecodeResult, FrameDecoder}; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 74aa5f6f0c..ab8614d5b1 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -1,10 +1,7 @@ //! Frame reading and writing //! -//! Frame readers and writers are responsible for writing a [`Bytes`] frame to an `AsyncWrite`, or -//! reading them from `AsyncRead`. They can be given a flexible function to encode and decode -//! frames. - -// pub mod serde; +//! Frame readers and writers are responsible for writing a [`Bytes`] frame to an [`AsyncWrite`] +//! writer, or reading them from [`AsyncRead`] reader. use std::{ io, @@ -14,38 +11,11 @@ use std::{ use bytes::{Buf, Bytes, BytesMut}; use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; -use thiserror::Error; - -use crate::{codec::Transcoder, try_ready}; - -/// Frame decoder. -/// -/// A frame decoder is responsible for extracting a frame from a reader's internal buffer. -pub trait FrameDecoder { - /// Decoding error. - type Error: std::error::Error + Send + Sync + 'static; - - /// Decodes a frame from a buffer. - /// - /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for - /// details. - /// - /// Implementers of this function are expected to remove completed frames from `buffer`. - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; -} -/// The outcome of a [`decode_frame`] call. -#[derive(Debug, Error)] -pub enum DecodeResult { - /// A complete frame was decoded. - Frame(BytesMut), - /// No frame could be decoded, an unknown amount of bytes is still required. - Incomplete, - /// No frame could be decoded, but the remaining amount of bytes required is known. - Remaining(usize), - /// Irrecoverably failed to decode frame. - Failed(E), -} +use crate::{ + codec::{DecodeResult, FrameDecoder, Transcoder}, + try_ready, +}; /// Reader for frames being encoded. pub struct FrameReader { From ae91a968afdf2d726c1b1dad6d7a5096bd28e95a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 16:13:51 +0200 Subject: [PATCH 136/735] Update `length_delimited` codec, bringing it in line with new docs --- muxink/src/codec/length_delimited.rs | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/muxink/src/codec/length_delimited.rs b/muxink/src/codec/length_delimited.rs index ca01fc7add..c6aff5e849 100644 --- a/muxink/src/codec/length_delimited.rs +++ b/muxink/src/codec/length_delimited.rs @@ -2,20 +2,22 @@ //! //! Allows for frames to be at most `u16::MAX` (64 KB) in size. Frames are encoded by prefixing //! their length in little endian byte order in front of every frame. +//! +//! The module provides an encoder through the [`Transcoder`] implementation, and a [`FrameDecoder`] +//! for reading these length delimited frames back from a stream. use std::convert::Infallible; use bytes::{Buf, BytesMut}; use thiserror::Error; -use crate::{codec::Transcoder, ImmediateFrame}; - -use super::{DecodeResult, FrameDecoder}; +use super::{DecodeResult, FrameDecoder, Transcoder}; +use crate::ImmediateFrame; /// Lenght of the prefix that describes the length of the following frame. const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); -/// Two-byte length delimited frame encoder. +/// Two-byte length delimited frame encoder and frame decoder. pub struct LengthDelimited; impl FrameDecoder for LengthDelimited { From 3cb254d8ed81618e24553b90b2ec83ca4580fbb2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 16:20:08 +0200 Subject: [PATCH 137/735] Note cancellation safety of `io` module and update docs --- muxink/src/io.rs | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index ab8614d5b1..725b738c0c 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -1,7 +1,9 @@ //! Frame reading and writing //! //! Frame readers and writers are responsible for writing a [`Bytes`] frame to an [`AsyncWrite`] -//! writer, or reading them from [`AsyncRead`] reader. +//! writer, or reading them from [`AsyncRead`] reader. While writing works for any value that +//! implements the [`bytes::Buf`] trait, decoding requires an implementation of the [`FrameDecoder`] +//! trait. use std::{ io, @@ -17,7 +19,14 @@ use crate::{ try_ready, }; -/// Reader for frames being encoded. +/// Frame decoder for an underlying reader. +/// +/// Uses the given [`FrameDecoder`] `D` to read frames from the underlying IO. +/// +/// # Cancellation safety +/// +/// The [`Stream`] implementation on [`FrameDecoder`] is cancellation safe, as it buffers data +/// inside the reader, not the `next` future. pub struct FrameReader { /// Decoder used to decode frames. decoder: D, @@ -30,6 +39,13 @@ pub struct FrameReader { } /// Writer for frames. +/// +/// Simply writes any given [`Buf`]-implementing frame to the underlying writer. +/// +/// # Cancellation safety +/// +/// The [`Sink`] methods on [`FrameWriter`] are cancellation safe. Only a single item is buffered +/// inside the writer itself. pub struct FrameWriter, W> { /// The encoder used to encode outgoing frames. encoder: E, From 1d51ead1158d6e068b17649cff755c8e14e1b64c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 17:15:53 +0200 Subject: [PATCH 138/735] Make `DecodeResult` support returning types directly --- muxink/src/codec.rs | 10 ++++++---- muxink/src/codec/length_delimited.rs | 7 ++++--- muxink/src/{io => codec}/serde.rs | 0 muxink/src/io.rs | 6 +++--- 4 files changed, 13 insertions(+), 10 deletions(-) rename muxink/src/{io => codec}/serde.rs (100%) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index e9e14df3fa..71458c03fe 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -64,20 +64,22 @@ pub trait FrameDecoder { /// Decoding error. type Error: std::error::Error + Send + Sync + 'static; + type Output: Send + Sync + 'static; + /// Decodes a frame from a buffer. /// /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for /// details. /// /// Implementers of this function are expected to remove completed frames from `buffer`. - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; } /// The outcome of a [`decode_frame`] call. #[derive(Debug, Error)] -pub enum DecodeResult { - /// A complete frame was decoded. - Frame(BytesMut), +pub enum DecodeResult { + /// A complete item was decoded. + Item(T), /// No frame could be decoded, an unknown amount of bytes is still required. Incomplete, /// No frame could be decoded, but the remaining amount of bytes required is known. diff --git a/muxink/src/codec/length_delimited.rs b/muxink/src/codec/length_delimited.rs index c6aff5e849..3534eed115 100644 --- a/muxink/src/codec/length_delimited.rs +++ b/muxink/src/codec/length_delimited.rs @@ -8,7 +8,7 @@ use std::convert::Infallible; -use bytes::{Buf, BytesMut}; +use bytes::{Buf, Bytes, BytesMut}; use thiserror::Error; use super::{DecodeResult, FrameDecoder, Transcoder}; @@ -22,8 +22,9 @@ pub struct LengthDelimited; impl FrameDecoder for LengthDelimited { type Error = Infallible; + type Output = Bytes; - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { let bytes_in_buffer = buffer.remaining(); if bytes_in_buffer < LENGTH_MARKER_SIZE { return DecodeResult::Incomplete; @@ -43,7 +44,7 @@ impl FrameDecoder for LengthDelimited { let mut full_frame = buffer.split_to(end); let _ = full_frame.get_u16_le(); - DecodeResult::Frame(full_frame) + DecodeResult::Item(full_frame.freeze()) } } diff --git a/muxink/src/io/serde.rs b/muxink/src/codec/serde.rs similarity index 100% rename from muxink/src/io/serde.rs rename to muxink/src/codec/serde.rs diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 725b738c0c..3b4b90fb7e 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -11,7 +11,7 @@ use std::{ task::{Context, Poll}, }; -use bytes::{Buf, Bytes, BytesMut}; +use bytes::{Buf, BytesMut}; use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; use crate::{ @@ -77,7 +77,7 @@ where D: FrameDecoder + Unpin, R: AsyncRead + Unpin, { - type Item = io::Result; + type Item = io::Result<::Output>; fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let FrameReader { @@ -88,7 +88,7 @@ where } = self.get_mut(); loop { let next_read = match decoder.decode_frame(buffer) { - DecodeResult::Frame(frame) => return Poll::Ready(Some(Ok(frame.freeze()))), + DecodeResult::Item(frame) => return Poll::Ready(Some(Ok(frame))), DecodeResult::Incomplete => *max_read_buffer_increment, DecodeResult::Remaining(remaining) => remaining.min(*max_read_buffer_increment), DecodeResult::Failed(error) => { From 468cc1b6d315cfc32d8ff7b854b9467d3fd16073 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 17:16:09 +0200 Subject: [PATCH 139/735] Replace incomplete `serde` codec with `bincode` codec --- Cargo.lock | 10 ++- muxink/Cargo.toml | 5 ++ muxink/src/codec.rs | 2 + muxink/src/codec/bincode.rs | 97 ++++++++++++++++++++ muxink/src/codec/serde.rs | 173 ------------------------------------ 5 files changed, 110 insertions(+), 177 deletions(-) create mode 100644 muxink/src/codec/bincode.rs delete mode 100644 muxink/src/codec/serde.rs diff --git a/Cargo.lock b/Cargo.lock index 7b99dc1cb9..7c469a0ab8 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2744,8 +2744,10 @@ name = "muxink" version = "0.1.0" dependencies = [ "anyhow", + "bincode", "bytes", "futures", + "serde", "thiserror", "tokio", "tokio-stream", @@ -4040,9 +4042,9 @@ checksum = "a41d061efea015927ac527063765e73601444cdc344ba855bc7bd44578b25e1c" [[package]] name = "serde" -version = "1.0.137" +version = "1.0.138" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1" +checksum = "1578c6245786b9d168c5447eeacfb96856573ca56c9d68fdcf394be134882a47" dependencies = [ "serde_derive", ] @@ -4077,9 +4079,9 @@ dependencies = [ [[package]] name = "serde_derive" -version = "1.0.137" +version = "1.0.138" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1f26faba0c3959972377d3b2d306ee9f71faee9714294e41bb777f83f88578be" +checksum = "023e9b1467aef8a10fb88f25611870ada9800ef7e22afce356bb0d2387b6f27c" dependencies = [ "proc-macro2", "quote", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 6378eb3a5c..a481c019dd 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -5,11 +5,16 @@ edition = "2021" [dependencies] anyhow = "1.0.57" +bincode = { version = "1.3.3", optional = true } bytes = "1.1.0" futures = "0.3.21" +serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" tokio = { version = "1.18.1", features = [ "full" ] } tokio-util = "0.7.2" [dev-dependencies] tokio-stream = "0.1.8" + +[features] +bincode = [ "dep:serde", "dep:bincode" ] diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 71458c03fe..40ef6adf78 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -22,6 +22,8 @@ //! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a //! length-prefix. +#[cfg(feature = "bincode")] +pub mod bincode; pub mod length_delimited; use std::{ diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs new file mode 100644 index 0000000000..e13f24a4a4 --- /dev/null +++ b/muxink/src/codec/bincode.rs @@ -0,0 +1,97 @@ +//! Bincode encoding/decoding +//! +//! Both encoding and decoding are supported by this module. Note that `BincodeDecoder` supports +//! implements both [`Transcoder`] and [`FrameDecoder`]. The former operates on frames and is safe +//! to use, the latter attempts to parse incoming buffers until successful. For this reason, +//! variably sized or large types should be avoided, as decoding will otherwise open up an +//! opportunity for an attacker blow up computational complexity of incoming message parsing. + +use std::{ + io::{self, Cursor}, + marker::PhantomData, +}; + +use bytes::{Buf, Bytes, BytesMut}; +use serde::{de::DeserializeOwned, Serialize}; + +use super::{DecodeResult, FrameDecoder, Transcoder}; + +/// A bincode encoder. +/// +/// Every value is encoded with the default settings of `bincode`. +pub struct BincodeEncoder { + /// Item type processed by this encoder. + /// + /// We restrict encoders to a single message type to make decoding on the other end easier. + item_type: PhantomData, +} + +impl Transcoder for BincodeEncoder +where + T: Serialize, +{ + type Error = bincode::Error; + + type Output = Bytes; + + fn transcode(&mut self, input: T) -> Result { + bincode::serialize(&input).map(Bytes::from) + } +} + +/// Bincode decoder. +/// +/// Like [`BincodeEncoder`], uses default settings for decoding. Can be used on bytestreams (via +/// [`FrameDecoder`]) as well as frames (through [`Transcoder`]). See module documentation for +/// caveats. +pub struct BincodeDecoder { + item_type: PhantomData, +} + +impl Transcoder for BincodeDecoder +where + T: DeserializeOwned + Send + Sync + 'static, + R: AsRef<[u8]>, +{ + type Error = bincode::Error; + + type Output = T; + + fn transcode(&mut self, input: R) -> Result { + bincode::deserialize(input.as_ref()) + } +} + +impl FrameDecoder for BincodeDecoder +where + T: DeserializeOwned + Send + Sync + 'static, +{ + type Error = bincode::Error; + type Output = T; + + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { + let (outcome, consumed) = { + let slice: &[u8] = buffer.as_ref(); + let mut cursor = Cursor::new(slice); + let outcome = bincode::deserialize_from(&mut cursor); + (outcome, cursor.position() as usize) + }; + + match outcome { + Ok(item) => { + buffer.advance(consumed); + DecodeResult::Item(item) + } + Err(err) => match *err { + // Note: `bincode::de::read::SliceReader` hardcodes missing data as + // `io::ErrorKind::UnexpectedEof`, which is what we match on here. This is a + // bit dangerous, since it is not part of the stable API. + // TODO: Write test to ensure this is correct. + bincode::ErrorKind::Io(io_err) if io_err.kind() == io::ErrorKind::UnexpectedEof => { + DecodeResult::Incomplete + } + _ => DecodeResult::Failed(err), + }, + } + } +} diff --git a/muxink/src/codec/serde.rs b/muxink/src/codec/serde.rs deleted file mode 100644 index 8003afa0ba..0000000000 --- a/muxink/src/codec/serde.rs +++ /dev/null @@ -1,173 +0,0 @@ -// #### QUESTION: ONE ENCODER OPERATES ON FRAMES AND ONE OPERATES ON BUFFERS! BUT THIS ISNT TRUE, SINCE THE WRITE-SINK TAKES `Buf`! - -//! Serde encoding/decoding - -use std::convert::Infallible; - -use bytes::{Buf, BytesMut}; -use thiserror::Error; - -use crate::ImmediateFrame; - -use super::{DecodeResult, Decoder, Encoder}; - -/// Lenght of the prefix that describes the length of the following frame. -const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); - -/// Two-byte length delimited frame encoder. -pub struct LengthDelimited; - -impl Decoder for LengthDelimited { - type Error = Infallible; - - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { - let bytes_in_buffer = buffer.remaining(); - if bytes_in_buffer < LENGTH_MARKER_SIZE { - return DecodeResult::Incomplete; - } - let data_length = u16::from_le_bytes( - buffer[0..LENGTH_MARKER_SIZE] - .try_into() - .expect("any two bytes should be parseable to u16"), - ) as usize; - - let end = LENGTH_MARKER_SIZE + data_length; - - if bytes_in_buffer < end { - return DecodeResult::Remaining(end - bytes_in_buffer); - } - - let mut full_frame = buffer.split_to(end); - let _ = full_frame.get_u16_le(); - - DecodeResult::Frame(full_frame) - } -} - -/// A length-based encoding error. -#[derive(Debug, Error)] -#[error("outgoing frame would exceed maximum frame length of 64 KB: {0}")] -pub struct LengthExceededError(usize); - -/// The frame type for length prefixed frames. -pub type LengthPrefixedFrame = bytes::buf::Chain, F>; - -impl Encoder for LengthDelimited -where - F: Buf + Send + Sync + 'static, -{ - type Error = LengthExceededError; - type WrappedFrame = LengthPrefixedFrame; - - fn encode_frame(&mut self, raw_frame: F) -> Result { - let remaining = raw_frame.remaining(); - let length: u16 = remaining - .try_into() - .map_err(|_err| LengthExceededError(remaining))?; - Ok(ImmediateFrame::from(length).chain(raw_frame)) - } -} - -#[cfg(test)] -mod tests { - use futures::io::Cursor; - - use crate::{io::FrameReader, tests::collect_stream_results}; - - use super::LengthDelimited; - - // In tests use small value to make sure that we correctly merge data that was polled from the - // stream in small chunks. - const TESTING_BUFFER_INCREMENT: usize = 4; - - /// Decodes the input string, returning the decoded frames and the remainder. - fn run_decoding_stream(input: &[u8]) -> (Vec>, Vec) { - let stream = Cursor::new(input); - - let mut reader = FrameReader::new(LengthDelimited, stream, TESTING_BUFFER_INCREMENT); - - let decoded: Vec<_> = collect_stream_results(&mut reader) - .into_iter() - .map(|bytes| bytes.into_iter().collect::>()) - .collect(); - - // Extract the remaining data. - let (_decoder, cursor, buffer) = reader.into_parts(); - let mut remaining = Vec::new(); - remaining.extend(buffer.into_iter()); - let cursor_pos = cursor.position() as usize; - remaining.extend(&cursor.into_inner()[cursor_pos..]); - - (decoded, remaining) - } - - #[test] - fn produces_fragments_from_stream() { - let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; - let expected: &[&[u8]] = &[b"\x00ABCDE", b"\x00FGHIJ", b"\xffKL", b"\xffM"]; - - let (decoded, remainder) = run_decoding_stream(input); - - assert_eq!(expected, decoded); - assert!(remainder.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_single_frame() { - let input = b"\x01\x00X"; - - let (decoded, remainder) = run_decoding_stream(input); - assert_eq!(decoded, &[b"X"]); - assert!(remainder.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_empty_buffer() { - let input: &[u8] = b""; - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - assert!(remainder.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_incomplete_length_in_buffer() { - let input = b"A"; - - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - assert_eq!(remainder, b"A"); - } - - #[test] - fn extracts_length_delimited_frame_incomplete_data_in_buffer() { - let input = b"\xff\xffABCD"; - - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - - assert_eq!(remainder, b"\xff\xffABCD"[..]); - } - - #[test] - fn extracts_length_delimited_frame_only_length_in_buffer() { - let input = b"\xff\xff"; - - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - assert_eq!(remainder, b"\xff\xff"[..]); - } - - #[test] - fn extracts_length_delimited_frame_max_size() { - let mut input = Vec::from(&b"\xff\xff"[..]); - input.resize(u16::MAX as usize + 2, 50); - let (decoded, remainder) = run_decoding_stream(&input); - - assert_eq!(decoded, &[&input[2..]]); - assert!(remainder.is_empty()); - } -} From 4d688b9d4635e9394d3ac73136ce1c7c80808fdc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 18:12:35 +0200 Subject: [PATCH 140/735] Remove obsolete `fixed_size` module --- muxink/src/fixed_size.rs | 166 --------------------------------------- muxink/src/lib.rs | 23 ------ 2 files changed, 189 deletions(-) delete mode 100644 muxink/src/fixed_size.rs diff --git a/muxink/src/fixed_size.rs b/muxink/src/fixed_size.rs deleted file mode 100644 index 6edc05725c..0000000000 --- a/muxink/src/fixed_size.rs +++ /dev/null @@ -1,166 +0,0 @@ -//! Immediate (small/fixed size) item sink and stream. -//! -//! `ImmediateSink` allows sending items for which `Into>` is -//! implemented. Typically this is true for small atomic types like `u32`, which are encoded as -//! little endian in throughout this crate. -//! -//! No additional headers are added, as immediate values are expected to be of fixed size. - -use std::{ - marker::PhantomData, - pin::Pin, - task::{Context, Poll}, -}; - -use bytes::Bytes; -use futures::{ready, Sink, SinkExt, Stream, StreamExt}; -use thiserror::Error; - -use crate::{FromFixedSize, ImmediateFrame}; - -/// Sink for immediate values. -/// -/// Any value passed into the sink (via the `futures::Sink` trait) will be converted into an -/// immediate `ImmediateFrame` and sent. -pub struct ImmediateSink { - /// The underlying sink where items are written. - sink: S, - /// Phantom data for the immediate array type. - _phantom: PhantomData, -} - -/// Stream of immediate values. -/// -/// Reconstructs immediates from variably sized frames. The incoming frames are assumed to be all of -/// the same size. -pub struct ImmediateStream { - stream: S, - _type: PhantomData, -} - -/// Error occurring during immediate stream reading. -#[derive(Debug, Error)] -pub enum ImmediateStreamError { - /// The incoming frame was of the wrong size. - #[error("wrong size for immediate frame, expected {expected}, got {actual}")] - WrongSize { actual: usize, expected: usize }, -} - -impl ImmediateSink { - /// Creates a new immediate sink on top of the given stream. - pub fn new(sink: S) -> Self { - Self { - sink, - _phantom: PhantomData, - } - } -} - -impl ImmediateStream { - pub fn new(stream: S) -> Self { - Self { - stream, - _type: PhantomData, - } - } -} - -impl Sink for ImmediateSink -where - A: Unpin, - ImmediateFrame: From, - S: Sink> + Unpin, -{ - type Error = >>::Error; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().sink.poll_ready_unpin(cx) - } - - fn start_send(self: Pin<&mut Self>, item: T) -> Result<(), Self::Error> { - let immediate = item.into(); - self.get_mut().sink.start_send_unpin(immediate) - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().sink.poll_flush_unpin(cx) - } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().sink.poll_close_unpin(cx) - } -} - -impl Stream for ImmediateStream -where - T: FromFixedSize + Unpin, - S: Stream + Unpin, -{ - type Item = Result; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - match ready!(self_mut.stream.poll_next_unpin(cx)) { - Some(frame) => { - let slice: &[u8] = &frame; - - Poll::Ready(Some(T::from_slice(slice).ok_or({ - ImmediateStreamError::WrongSize { - actual: slice.len(), - expected: T::WIRE_SIZE, - } - }))) - } - None => Poll::Ready(None), - } - } -} - -#[cfg(test)] -mod tests { - use std::sync::Arc; - - use bytes::Bytes; - use futures::{stream, FutureExt, SinkExt}; - - use crate::{ - fixed_size::ImmediateSink, - testing::{collect_stream_results, testing_sink::TestingSink}, - }; - - use super::ImmediateStream; - - #[test] - fn simple_sending() { - let output = Arc::new(TestingSink::new()); - let mut sink = ImmediateSink::new(output.clone().into_ref()); - - sink.send(0x1234u32).now_or_never().unwrap().unwrap(); - assert_eq!(output.get_contents(), &[0x34, 0x12, 0x00, 0x00]); - - sink.send(0xFFFFFFFFu32).now_or_never().unwrap().unwrap(); - assert_eq!( - output.get_contents(), - &[0x34, 0x12, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF] - ); - - sink.send(0x78563412u32).now_or_never().unwrap().unwrap(); - assert_eq!( - output.get_contents(), - &[0x34, 0x12, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x12, 0x34, 0x56, 0x78] - ); - } - - #[test] - fn simple_stream() { - let input = vec![ - Bytes::copy_from_slice(&[0x78, 0x56, 0x34, 0x12]), - Bytes::copy_from_slice(&[0xDD, 0xCC, 0xBB, 0xAA]), - ]; - - let stream = ImmediateStream::<_, u32>::new(stream::iter(input)); - - assert_eq!(collect_stream_results(stream), &[0x12345678, 0xAABBCCDD]); - } -} diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 957ece6ffd..6aaf5188e2 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -3,7 +3,6 @@ pub mod backpressured; pub mod codec; pub mod error; -pub mod fixed_size; pub mod fragmented; pub mod io; pub mod mux; @@ -37,19 +36,6 @@ pub struct ImmediateFrame { value: A, } -/// Canonical encoding of immediates. -/// -/// This trait describes the conversion of an immediate type from a slice of bytes. -pub trait FromFixedSize: Sized { - /// The size of the type on the wire. - /// - /// `from_slice` expects its input argument to be of this length. - const WIRE_SIZE: usize; - - /// Try to reconstruct a type from a slice of bytes. - fn from_slice(slice: &[u8]) -> Option; -} - impl ImmediateFrame { #[inline] pub fn new(value: A) -> Self { @@ -60,15 +46,6 @@ impl ImmediateFrame { /// Implements conversion functions to immediate types for atomics like `u8`, etc. macro_rules! impl_immediate_frame_le { ($t:ty) => { - impl FromFixedSize for $t { - // TODO: Consider hardcoding size if porting to really weird platforms. - const WIRE_SIZE: usize = std::mem::size_of::<$t>(); - - fn from_slice(slice: &[u8]) -> Option { - Some(<$t>::from_le_bytes(slice.try_into().ok()?)) - } - } - impl From<$t> for ImmediateFrame<[u8; ::std::mem::size_of::<$t>()]> { #[inline] fn from(value: $t) -> Self { From 07b05401b34500b84b2ea1d99ce68102931ff4d9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 18:19:35 +0200 Subject: [PATCH 141/735] Make `bincode` available on `SinkExt` --- muxink/src/codec/bincode.rs | 18 ++++++++++++++++++ muxink/src/lib.rs | 10 ++++++++++ 2 files changed, 28 insertions(+) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index e13f24a4a4..c573e85760 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -26,6 +26,15 @@ pub struct BincodeEncoder { item_type: PhantomData, } +impl BincodeEncoder { + /// Creates a new bincode encoder. + pub fn new() -> Self { + BincodeEncoder { + item_type: PhantomData, + } + } +} + impl Transcoder for BincodeEncoder where T: Serialize, @@ -48,6 +57,15 @@ pub struct BincodeDecoder { item_type: PhantomData, } +impl BincodeDecoder { + /// Creates a new bincode decoder. + pub fn new() -> Self { + BincodeDecoder { + item_type: PhantomData, + } + } +} + impl Transcoder for BincodeDecoder where T: DeserializeOwned + Send + Sync + 'static, diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 6aaf5188e2..c7f22a9329 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -94,6 +94,16 @@ pub trait SinkMuxExt: Sized { Self: Sink, T: Transcoder; + /// Wraps the current sink in a bincode transcoder. + #[cfg(feature = "bincode")] + fn bincode(self) -> TranscodingSink, T, Self> + where + Self: Sink, + T: serde::Serialize + Sync + Send + 'static, + { + self.with_transcoder(codec::bincode::BincodeEncoder::new()) + } + /// Wrap current sink in length delimination. /// /// Equivalent to `.with_transcoder(LengthDelimited)`. From d94998f64ea9c595085be9d23067dfcfa9002fd9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 18:29:11 +0200 Subject: [PATCH 142/735] Add `StreamMuxExt` along with bincode functions --- muxink/src/codec.rs | 20 +++++++++----------- muxink/src/codec/bincode.rs | 2 ++ muxink/src/lib.rs | 30 +++++++++++++++++++++++------- 3 files changed, 34 insertions(+), 18 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 40ef6adf78..f9c9722909 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -103,11 +103,7 @@ pub enum TranscodingIoError { /// A sink adapter for transcoding incoming values into an underlying sink. #[derive(Debug)] -pub struct TranscodingSink -where - T: Transcoder, - S: Sink, -{ +pub struct TranscodingSink { /// Transcoder used to transcode data before passing it to the sink. transcoder: T, /// Underlying sink where data is sent. @@ -116,11 +112,7 @@ where _input_frame: PhantomData, } -impl TranscodingSink -where - T: Transcoder, - S: Sink, -{ +impl TranscodingSink { /// Creates a new transcoding sink. pub fn new(transcoder: T, sink: S) -> Self { Self { @@ -188,7 +180,7 @@ where pub struct TranscodingStream { /// Transcoder used to transcode data before returning from the stream. transcoder: T, - /// Underlying stream where data is sent. + /// Underlying stream from which data is receveid. stream: S, } @@ -210,3 +202,9 @@ where } } } +impl TranscodingStream { + /// Creates a new transcoding stream. + pub(crate) fn new(transcoder: T, stream: S) -> TranscodingStream { + TranscodingStream { transcoder, stream } + } +} diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index c573e85760..8af3dd96e8 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -19,6 +19,7 @@ use super::{DecodeResult, FrameDecoder, Transcoder}; /// A bincode encoder. /// /// Every value is encoded with the default settings of `bincode`. +#[derive(Default)] pub struct BincodeEncoder { /// Item type processed by this encoder. /// @@ -53,6 +54,7 @@ where /// Like [`BincodeEncoder`], uses default settings for decoding. Can be used on bytestreams (via /// [`FrameDecoder`]) as well as frames (through [`Transcoder`]). See module documentation for /// caveats. +#[derive(Default)] pub struct BincodeDecoder { item_type: PhantomData, } diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index c7f22a9329..07e0cff9ef 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -11,7 +11,7 @@ pub mod testing; use bytes::Buf; use codec::length_delimited::{LengthDelimited, LengthPrefixedFrame}; -use codec::{Transcoder, TranscodingSink}; +use codec::{Transcoder, TranscodingSink, TranscodingStream}; use futures::Sink; /// Helper macro for returning a `Poll::Ready(Err)` eagerly. @@ -91,7 +91,6 @@ pub trait SinkMuxExt: Sized { transcoder: T, ) -> TranscodingSink where - Self: Sink, T: Transcoder; /// Wraps the current sink in a bincode transcoder. @@ -120,15 +119,32 @@ impl SinkMuxExt for S { fn with_transcoder( self, transcoder: T, - ) -> TranscodingSink - where - S: Sink + Sized, - T: Transcoder, - { + ) -> TranscodingSink { TranscodingSink::new(transcoder, self) } } +/// Convenience trait for the construction of stream chains. +pub trait StreamMuxExt: Sized { + /// Wraps the current stream with a transcoder. + fn with_transcoder(self, transcoder: T) -> TranscodingStream; + + /// Wraps the current stream in a bincode transcoder. + #[cfg(feature = "bincode")] + fn bincode(self) -> TranscodingStream, Self> { + self.with_transcoder(codec::bincode::BincodeDecoder::new()) + } +} + +impl StreamMuxExt for S +where + S: Sized, +{ + fn with_transcoder(self, transcoder: T) -> TranscodingStream { + TranscodingStream::new(transcoder, self) + } +} + #[cfg(test)] pub(crate) mod tests { From ef184122c2e6bed694a3dfda6104b081576d07ed Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 10 Jul 2022 18:38:45 +0200 Subject: [PATCH 143/735] Add fragmentation method to mux extension traits --- muxink/src/lib.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 07e0cff9ef..14a5b6f6b9 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -9,9 +9,12 @@ pub mod mux; #[cfg(test)] pub mod testing; +use std::num::NonZeroUsize; + use bytes::Buf; use codec::length_delimited::{LengthDelimited, LengthPrefixedFrame}; use codec::{Transcoder, TranscodingSink, TranscodingStream}; +use fragmented::{Defragmentizer, Fragmentizer, SingleFragment}; use futures::Sink; /// Helper macro for returning a `Poll::Ready(Err)` eagerly. @@ -103,6 +106,12 @@ pub trait SinkMuxExt: Sized { self.with_transcoder(codec::bincode::BincodeEncoder::new()) } + /// Wraps the current sink in a fragmentizer. + fn fragmenting(self, fragment_size: NonZeroUsize) -> Fragmentizer + where + Self: Sink + Unpin, + F: Buf + Send + Sync + 'static; + /// Wrap current sink in length delimination. /// /// Equivalent to `.with_transcoder(LengthDelimited)`. @@ -122,6 +131,14 @@ impl SinkMuxExt for S { ) -> TranscodingSink { TranscodingSink::new(transcoder, self) } + + fn fragmenting(self, fragment_size: NonZeroUsize) -> Fragmentizer + where + Self: Sink + Unpin, + F: Buf + Send + Sync + 'static, + { + Fragmentizer::new(fragment_size, self) + } } /// Convenience trait for the construction of stream chains. @@ -134,6 +151,9 @@ pub trait StreamMuxExt: Sized { fn bincode(self) -> TranscodingStream, Self> { self.with_transcoder(codec::bincode::BincodeDecoder::new()) } + + /// Wraps the current stream in a defragmentizer. + fn defragmenting(self, max_frame_size: usize) -> Defragmentizer; } impl StreamMuxExt for S @@ -143,6 +163,10 @@ where fn with_transcoder(self, transcoder: T) -> TranscodingStream { TranscodingStream::new(transcoder, self) } + + fn defragmenting(self, max_frame_size: usize) -> Defragmentizer { + Defragmentizer::new(max_frame_size, self) + } } #[cfg(test)] From 78b872d5d6026ac4148d7a4c96e212cc8983ee12 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 27 Jul 2022 15:17:18 +0200 Subject: [PATCH 144/735] Introduce the `bytesrepr` codec --- Cargo.lock | 1 + muxink/Cargo.toml | 2 + muxink/src/codec.rs | 2 + muxink/src/codec/bincode.rs | 44 ++++++++ muxink/src/codec/bytesrepr.rs | 183 ++++++++++++++++++++++++++++++++++ 5 files changed, 232 insertions(+) create mode 100644 muxink/src/codec/bytesrepr.rs diff --git a/Cargo.lock b/Cargo.lock index 7c469a0ab8..b411c2fed8 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2746,6 +2746,7 @@ dependencies = [ "anyhow", "bincode", "bytes", + "casper-types 1.5.0", "futures", "serde", "thiserror", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index a481c019dd..5821a23d69 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -12,9 +12,11 @@ serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" tokio = { version = "1.18.1", features = [ "full" ] } tokio-util = "0.7.2" +casper-types = { path = "../types", optional = true } [dev-dependencies] tokio-stream = "0.1.8" [features] bincode = [ "dep:serde", "dep:bincode" ] +bytesrepr = [ "dep:casper-types" ] \ No newline at end of file diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index f9c9722909..2958c969a2 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -24,6 +24,8 @@ #[cfg(feature = "bincode")] pub mod bincode; +#[cfg(feature = "bytesrepr")] +pub mod bytesrepr; pub mod length_delimited; use std::{ diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index 8af3dd96e8..621dd006e6 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -115,3 +115,47 @@ where } } } + +#[cfg(test)] +mod tests { + use super::DecodeResult; + use crate::codec::{ + bincode::{BincodeDecoder, BincodeEncoder}, + BytesMut, FrameDecoder, Transcoder, + }; + + #[test] + fn roundtrip() { + let data = "abc"; + + let mut encoder = BincodeEncoder::new(); + let value: String = String::from(data); + let encoded = encoder.transcode(value).expect("should encode"); + + let mut decoder = BincodeDecoder::::new(); + let decoded = decoder.transcode(encoded).expect("should decode"); + + assert_eq!(data, decoded); + } + + #[test] + fn decodes_frame() { + let data = b"\x01\x02rem"; + + let mut bytes: BytesMut = BytesMut::new(); + bytes.extend(data); + + let mut decoder = BincodeDecoder::::new(); + + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 1)); + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 2)); + } + + #[test] + fn error_when_decoding_incorrect_data() { + let data = "abc"; + + let mut decoder = BincodeDecoder::::new(); + let _ = decoder.transcode(data).expect_err("should not decode"); + } +} \ No newline at end of file diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs new file mode 100644 index 0000000000..0b232716e4 --- /dev/null +++ b/muxink/src/codec/bytesrepr.rs @@ -0,0 +1,183 @@ +//! Bytesrepr encoding/decoding +//! +use std::{fmt::Debug, marker::PhantomData}; + +use bytes::{Buf, Bytes, BytesMut}; +use casper_types::bytesrepr::{self, FromBytes, ToBytes}; +use thiserror::Error; + +use super::{DecodeResult, FrameDecoder, Transcoder}; +use crate::codec::DecodeResult::Failed; + +#[derive(Debug, Error)] +pub enum TranscoderError { + #[error("buffer not exhausted")] + BufferNotExhausted { left: usize }, + #[error("bytesrepr error")] + BytesreprError(bytesrepr::Error), +} + +/// A bytesrepr encoder. +#[derive(Default)] +pub struct BytesreprEncoder { + /// Item type processed by this encoder. + /// + /// We restrict encoders to a single message type to make decoding on the other end easier. + item_type: PhantomData, +} + +impl BytesreprEncoder { + /// Creates a new bytesrepr encoder. + pub fn new() -> Self { + BytesreprEncoder { + item_type: PhantomData, + } + } +} + +impl Transcoder for BytesreprEncoder +where + T: ToBytes, +{ + type Error = TranscoderError; + + type Output = Bytes; + + fn transcode(&mut self, input: T) -> Result { + let bytes = input + .to_bytes() + .map_err(|e| TranscoderError::BytesreprError(e))?; + + Ok(bytes.into()) + } +} + +/// Bytesrepr decoder. +#[derive(Default)] +pub struct BytesreprDecoder { + item_type: PhantomData, +} + +impl BytesreprDecoder { + /// Creates a new bytesrepr decoder. + pub fn new() -> Self { + BytesreprDecoder { + item_type: PhantomData, + } + } +} + +impl Transcoder for BytesreprDecoder +where + T: FromBytes + Send + Sync + 'static, + R: AsRef<[u8]> + Debug, +{ + type Error = TranscoderError; + + type Output = T; + + fn transcode(&mut self, input: R) -> Result { + let (data, rem) = FromBytes::from_bytes(input.as_ref()) + .map_err(|e| TranscoderError::BytesreprError(e))?; + + if !rem.is_empty() { + return Err(TranscoderError::BufferNotExhausted { left: rem.len() }.into()); + } + + Ok(data) + } +} + +impl FrameDecoder for BytesreprDecoder +where + T: FromBytes + Send + Sync + 'static, +{ + type Error = TranscoderError; + type Output = T; + + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { + let transcoded = FromBytes::from_bytes(buffer.as_ref()); + match transcoded { + Ok((data, rem)) => { + let _ = buffer.split_to(buffer.remaining() - rem.len()); + DecodeResult::Item(data) + } + Err(err) => match &err { + bytesrepr::Error::EarlyEndOfStream => DecodeResult::Incomplete, + bytesrepr::Error::Formatting + | bytesrepr::Error::LeftOverBytes + | bytesrepr::Error::NotRepresentable + | bytesrepr::Error::ExceededRecursionDepth + | bytesrepr::Error::OutOfMemory => { + Failed(TranscoderError::BytesreprError(err).into()) + } + }, + } + } +} + +#[cfg(test)] +mod tests { + use super::DecodeResult; + use crate::codec::{ + bytesrepr::{ + BytesreprDecoder, BytesreprEncoder, + TranscoderError::{self}, + }, + BytesMut, FrameDecoder, Transcoder, + }; + use casper_types::bytesrepr; + + #[test] + fn roundtrip() { + let data = "abc"; + + let mut encoder = BytesreprEncoder::new(); + let value: String = String::from(data); + let encoded = encoder.transcode(value).expect("should encode"); + + let mut decoder = BytesreprDecoder::::new(); + let decoded = decoder.transcode(encoded).expect("should decode"); + + assert_eq!(data, decoded); + } + + #[test] + fn decodes_frame() { + let data = b"\x03\0\0\0abc\x04\0\0\0defg"; + + let mut bytes: BytesMut = BytesMut::new(); + bytes.extend(data); + + let mut decoder = BytesreprDecoder::::new(); + + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "abc")); + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "defg")); + } + + #[test] + fn error_when_buffer_not_exhausted() { + let data = b"\x03\0\0\0abc\x04\0\0\0defg"; + + let mut decoder = BytesreprDecoder::::new(); + let actual_error = decoder.transcode(data).unwrap_err(); + + assert!(matches!( + actual_error, + TranscoderError::BufferNotExhausted { left: 8 } + )); + } + + #[test] + fn error_when_data_incomplete() { + let data = b"\x03\0\0\0ab"; + + let mut decoder = BytesreprDecoder::::new(); + let actual_error = decoder.transcode(data).unwrap_err(); + + assert!(matches!( + actual_error, + TranscoderError::BytesreprError(bytesrepr::Error::EarlyEndOfStream) + )); + } +} From 25d072d3a7591ce548b6203d90af5835a8a7b86b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 27 Jul 2022 15:20:21 +0200 Subject: [PATCH 145/735] Satisfy clippy --- muxink/src/codec/bytesrepr.rs | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 0b232716e4..3aa348a47f 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -44,9 +44,7 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - let bytes = input - .to_bytes() - .map_err(|e| TranscoderError::BytesreprError(e))?; + let bytes = input.to_bytes().map_err(TranscoderError::BytesreprError)?; Ok(bytes.into()) } @@ -77,11 +75,11 @@ where type Output = T; fn transcode(&mut self, input: R) -> Result { - let (data, rem) = FromBytes::from_bytes(input.as_ref()) - .map_err(|e| TranscoderError::BytesreprError(e))?; + let (data, rem) = + FromBytes::from_bytes(input.as_ref()).map_err(TranscoderError::BytesreprError)?; if !rem.is_empty() { - return Err(TranscoderError::BufferNotExhausted { left: rem.len() }.into()); + return Err(TranscoderError::BufferNotExhausted { left: rem.len() }); } Ok(data) @@ -108,9 +106,7 @@ where | bytesrepr::Error::LeftOverBytes | bytesrepr::Error::NotRepresentable | bytesrepr::Error::ExceededRecursionDepth - | bytesrepr::Error::OutOfMemory => { - Failed(TranscoderError::BytesreprError(err).into()) - } + | bytesrepr::Error::OutOfMemory => Failed(TranscoderError::BytesreprError(err)), }, } } From 821389b1aa832c6f58751d59a4f8ac4614472c9b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 27 Jul 2022 15:33:32 +0200 Subject: [PATCH 146/735] Upgrade the `bincode` codec tests --- muxink/src/codec/bincode.rs | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index 621dd006e6..aebd4454a8 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -140,15 +140,15 @@ mod tests { #[test] fn decodes_frame() { - let data = b"\x01\x02rem"; + let data = b"\x03\0\0\0\0\0\0\0abc\x04\0\0\0\0\0\0\0defg"; let mut bytes: BytesMut = BytesMut::new(); bytes.extend(data); - let mut decoder = BincodeDecoder::::new(); + let mut decoder = BincodeDecoder::::new(); - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 1)); - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 2)); + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "abc")); + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "defg")); } #[test] @@ -158,4 +158,19 @@ mod tests { let mut decoder = BincodeDecoder::::new(); let _ = decoder.transcode(data).expect_err("should not decode"); } -} \ No newline at end of file + + #[test] + fn error_when_data_incomplete() { + let data = b"\x03\0\0\0\0\0\0\0ab"; + + let mut bytes: BytesMut = BytesMut::new(); + bytes.extend(data); + + let mut decoder = BincodeDecoder::::new(); + + assert!(matches!( + decoder.decode_frame(&mut bytes), + DecodeResult::Incomplete + )); + } +} From d35dccd54afe81fcb8c1c637f0544c482de5d395 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 27 Jul 2022 16:03:33 +0200 Subject: [PATCH 147/735] Avoid `dep:` in the features (and rename them) to be compatible with the pinned nightly --- muxink/Cargo.toml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 5821a23d69..186c0801a8 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -18,5 +18,5 @@ casper-types = { path = "../types", optional = true } tokio-stream = "0.1.8" [features] -bincode = [ "dep:serde", "dep:bincode" ] -bytesrepr = [ "dep:casper-types" ] \ No newline at end of file +muxink_bincode_codec = [ "serde", "bincode" ] +muxink_bytesrepr_codec = [ "casper-types" ] \ No newline at end of file From 2fdd1d6525bbea4419da625676ceb8952537587c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Wed, 27 Jul 2022 16:03:39 +0200 Subject: [PATCH 148/735] Apply formatting --- muxink/src/backpressured.rs | 4 +++- muxink/src/codec/bytesrepr.rs | 1 - muxink/src/fragmented.rs | 8 ++++---- muxink/src/lib.rs | 12 ++++++++---- 4 files changed, 15 insertions(+), 10 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 65c71fae8c..3ac7aa3b07 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -80,7 +80,9 @@ impl BackpressuredSink { impl Sink for BackpressuredSink where - // TODO: `Unpin` trait bounds can be removed by using `map_unchecked` if necessary. + // TODO: `Unpin` trait bounds can be + // removed by using `map_unchecked` if + // necessary. S: Sink + Unpin, Self: Unpin, A: Stream + Unpin, diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 3aa348a47f..f3c219c81b 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -1,5 +1,4 @@ //! Bytesrepr encoding/decoding -//! use std::{fmt::Debug, marker::PhantomData}; use bytes::{Buf, Bytes, BytesMut}; diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index de5ec7b28c..886f75e491 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -1,8 +1,8 @@ //! Splits frames into fragments. //! //! The wire format for fragments is `NCCC...` where `CCC...` is the data fragment and `N` is the -//! continuation byte, which is `0x00` if more fragments are following, `0xFF` if this is the frame's -//! last fragment. +//! continuation byte, which is `0x00` if more fragments are following, `0xFF` if this is the +//! frame's last fragment. use std::{ num::NonZeroUsize, @@ -249,8 +249,8 @@ where /// /// # Notes /// -/// Internally, data is copied into fragments by using `Buf::copy_to_bytes`. It is advisable to use a -/// `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. +/// Internally, data is copied into fragments by using `Buf::copy_to_bytes`. It is advisable to use +/// a `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. pub fn fragment_frame( mut frame: B, fragment_size: NonZeroUsize, diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 14a5b6f6b9..a7e5a0c527 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -12,8 +12,10 @@ pub mod testing; use std::num::NonZeroUsize; use bytes::Buf; -use codec::length_delimited::{LengthDelimited, LengthPrefixedFrame}; -use codec::{Transcoder, TranscodingSink, TranscodingStream}; +use codec::{ + length_delimited::{LengthDelimited, LengthPrefixedFrame}, + Transcoder, TranscodingSink, TranscodingStream, +}; use fragmented::{Defragmentizer, Fragmentizer, SingleFragment}; use futures::Sink; @@ -220,8 +222,10 @@ pub(crate) mod tests { // #[test] // fn from_bytestream_to_multiple_frames() { - // let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; - // let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; + // let input = + // &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\ + // x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected: + // &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; // let defragmentizer = make_defragmentizer(FrameReader::new( // LengthDelimited, From f3722b7904b71134082da80d7a61a25be6b59e7b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 28 Jul 2022 11:49:19 +0200 Subject: [PATCH 149/735] Update the UTs for codecs --- muxink/src/codec.rs | 4 ++-- muxink/src/codec/bincode.rs | 11 +++++++++++ muxink/src/codec/bytesrepr.rs | 8 ++++++++ 3 files changed, 21 insertions(+), 2 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 2958c969a2..23c57b18a9 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -22,9 +22,9 @@ //! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a //! length-prefix. -#[cfg(feature = "bincode")] +#[cfg(feature = "muxink_bincode_codec")] pub mod bincode; -#[cfg(feature = "bytesrepr")] +#[cfg(feature = "muxink_bytesrepr_codec")] pub mod bytesrepr; pub mod length_delimited; diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index aebd4454a8..0344e76c13 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -159,6 +159,17 @@ mod tests { let _ = decoder.transcode(data).expect_err("should not decode"); } + #[test] + #[ignore = "'transcode()' should fail here as the buffer is not exhausted"] + fn error_when_buffer_not_exhausted() { + let data = b"\x03\0\0\0\0\0\0\0abc\x04\0\0\0\0\0\0\0defg"; + + let mut decoder = BincodeDecoder::::new(); + let actual_error = decoder.transcode(data).unwrap_err(); + + dbg!(&actual_error); + } + #[test] fn error_when_data_incomplete() { let data = b"\x03\0\0\0\0\0\0\0ab"; diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index f3c219c81b..57ef92ccab 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -150,6 +150,14 @@ mod tests { assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "defg")); } + #[test] + fn error_when_decoding_incorrect_data() { + let data = "abc"; + + let mut decoder = BytesreprDecoder::::new(); + let _ = decoder.transcode(data).expect_err("should not decode"); + } + #[test] fn error_when_buffer_not_exhausted() { let data = b"\x03\0\0\0abc\x04\0\0\0defg"; From 902a35e1cf33ab77d98f070d6d2d2ec8c488612a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 28 Jul 2022 12:36:58 +0200 Subject: [PATCH 150/735] Make sure trailing bytes are rejected when using `bincode` --- muxink/src/codec/bincode.rs | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index 0344e76c13..bf34c3c6e7 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -11,6 +11,7 @@ use std::{ marker::PhantomData, }; +use bincode::{DefaultOptions, Options}; use bytes::{Buf, Bytes, BytesMut}; use serde::{de::DeserializeOwned, Serialize}; @@ -45,7 +46,10 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - bincode::serialize(&input).map(Bytes::from) + DefaultOptions::new() + .reject_trailing_bytes() + .serialize(&input) + .map(Bytes::from) } } @@ -78,7 +82,9 @@ where type Output = T; fn transcode(&mut self, input: R) -> Result { - bincode::deserialize(input.as_ref()) + DefaultOptions::new() + .reject_trailing_bytes() + .deserialize(input.as_ref()) } } @@ -160,14 +166,15 @@ mod tests { } #[test] - #[ignore = "'transcode()' should fail here as the buffer is not exhausted"] fn error_when_buffer_not_exhausted() { let data = b"\x03\0\0\0\0\0\0\0abc\x04\0\0\0\0\0\0\0defg"; let mut decoder = BincodeDecoder::::new(); - let actual_error = decoder.transcode(data).unwrap_err(); + let actual_error = *decoder.transcode(data).unwrap_err(); - dbg!(&actual_error); + assert!( + matches!(actual_error, bincode::ErrorKind::Custom(msg) if msg == "Slice had bytes remaining after deserialization") + ); } #[test] From 82a0e62ed02b5dbabbd274480de298f4db3009aa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 28 Jul 2022 12:39:08 +0200 Subject: [PATCH 151/735] Use explicit `bincode` options in `decode_frame` --- muxink/src/codec/bincode.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index bf34c3c6e7..28a353667d 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -99,7 +99,10 @@ where let (outcome, consumed) = { let slice: &[u8] = buffer.as_ref(); let mut cursor = Cursor::new(slice); - let outcome = bincode::deserialize_from(&mut cursor); + let outcome = DefaultOptions::new() + .with_fixint_encoding() + .allow_trailing_bytes() + .deserialize_from(&mut cursor); (outcome, cursor.position() as usize) }; From fdab1aa89ca1d30d4e20e5d207e0a148a36c368e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 28 Jul 2022 12:44:07 +0200 Subject: [PATCH 152/735] Do not use `_` when matching --- muxink/src/codec/bincode.rs | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index 28a353667d..3a180a0770 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -119,7 +119,15 @@ where bincode::ErrorKind::Io(io_err) if io_err.kind() == io::ErrorKind::UnexpectedEof => { DecodeResult::Incomplete } - _ => DecodeResult::Failed(err), + bincode::ErrorKind::SizeLimit + | bincode::ErrorKind::SequenceMustHaveLength + | bincode::ErrorKind::Custom(_) + | bincode::ErrorKind::InvalidCharEncoding + | bincode::ErrorKind::InvalidTagEncoding(_) + | bincode::ErrorKind::DeserializeAnyNotSupported + | bincode::ErrorKind::Io(_) + | bincode::ErrorKind::InvalidUtf8Encoding(_) + | bincode::ErrorKind::InvalidBoolEncoding(_) => DecodeResult::Failed(err), }, } } From 81a3869cf29a961e89d2fcf7c9916988975af9b4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Thu, 28 Jul 2022 13:14:37 +0200 Subject: [PATCH 153/735] Use the `LeftOverBytes` provided by `bytesrepr` --- muxink/src/codec/bytesrepr.rs | 38 +++++++++++------------------------ 1 file changed, 12 insertions(+), 26 deletions(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 57ef92ccab..4a92dce485 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -9,9 +9,7 @@ use super::{DecodeResult, FrameDecoder, Transcoder}; use crate::codec::DecodeResult::Failed; #[derive(Debug, Error)] -pub enum TranscoderError { - #[error("buffer not exhausted")] - BufferNotExhausted { left: usize }, +pub enum Error { #[error("bytesrepr error")] BytesreprError(bytesrepr::Error), } @@ -38,14 +36,12 @@ impl Transcoder for BytesreprEncoder where T: ToBytes, { - type Error = TranscoderError; + type Error = Error; type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - let bytes = input.to_bytes().map_err(TranscoderError::BytesreprError)?; - - Ok(bytes.into()) + Ok(input.to_bytes().map_err(Error::BytesreprError)?.into()) } } @@ -67,21 +63,14 @@ impl BytesreprDecoder { impl Transcoder for BytesreprDecoder where T: FromBytes + Send + Sync + 'static, - R: AsRef<[u8]> + Debug, + R: AsRef<[u8]>, { - type Error = TranscoderError; + type Error = Error; type Output = T; fn transcode(&mut self, input: R) -> Result { - let (data, rem) = - FromBytes::from_bytes(input.as_ref()).map_err(TranscoderError::BytesreprError)?; - - if !rem.is_empty() { - return Err(TranscoderError::BufferNotExhausted { left: rem.len() }); - } - - Ok(data) + Ok(bytesrepr::deserialize_from_slice(input).map_err(Error::BytesreprError)?) } } @@ -89,7 +78,7 @@ impl FrameDecoder for BytesreprDecoder where T: FromBytes + Send + Sync + 'static, { - type Error = TranscoderError; + type Error = Error; type Output = T; fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { @@ -105,7 +94,7 @@ where | bytesrepr::Error::LeftOverBytes | bytesrepr::Error::NotRepresentable | bytesrepr::Error::ExceededRecursionDepth - | bytesrepr::Error::OutOfMemory => Failed(TranscoderError::BytesreprError(err)), + | bytesrepr::Error::OutOfMemory => Failed(Error::BytesreprError(err)), }, } } @@ -113,12 +102,9 @@ where #[cfg(test)] mod tests { - use super::DecodeResult; + use super::{DecodeResult, Error}; use crate::codec::{ - bytesrepr::{ - BytesreprDecoder, BytesreprEncoder, - TranscoderError::{self}, - }, + bytesrepr::{BytesreprDecoder, BytesreprEncoder}, BytesMut, FrameDecoder, Transcoder, }; use casper_types::bytesrepr; @@ -167,7 +153,7 @@ mod tests { assert!(matches!( actual_error, - TranscoderError::BufferNotExhausted { left: 8 } + Error::BytesreprError(bytesrepr::Error::LeftOverBytes) )); } @@ -180,7 +166,7 @@ mod tests { assert!(matches!( actual_error, - TranscoderError::BytesreprError(bytesrepr::Error::EarlyEndOfStream) + Error::BytesreprError(bytesrepr::Error::EarlyEndOfStream) )); } } From 49a507c1d4cdcfc759fdffda2ab6f66d8147067d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 10:36:54 +0200 Subject: [PATCH 154/735] Update `bincode` configuration handling --- muxink/src/codec/bincode.rs | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index 3a180a0770..725a214583 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -46,8 +46,7 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - DefaultOptions::new() - .reject_trailing_bytes() + bincode_transcode_options() .serialize(&input) .map(Bytes::from) } @@ -82,9 +81,7 @@ where type Output = T; fn transcode(&mut self, input: R) -> Result { - DefaultOptions::new() - .reject_trailing_bytes() - .deserialize(input.as_ref()) + bincode_transcode_options().deserialize(input.as_ref()) } } @@ -133,6 +130,12 @@ where } } +fn bincode_transcode_options() -> impl bincode::config::Options { + DefaultOptions::new() + .reject_trailing_bytes() + .with_varint_encoding() +} + #[cfg(test)] mod tests { use super::DecodeResult; From 15a8bdef50fd39e62e3ca905437318e161f3689a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 10:40:54 +0200 Subject: [PATCH 155/735] Derive `Debug` in encoders --- muxink/src/codec/bincode.rs | 6 +++--- muxink/src/codec/bytesrepr.rs | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index 725a214583..d11accc5d0 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -17,10 +17,10 @@ use serde::{de::DeserializeOwned, Serialize}; use super::{DecodeResult, FrameDecoder, Transcoder}; -/// A bincode encoder. +/// Bincode encoder. /// /// Every value is encoded with the default settings of `bincode`. -#[derive(Default)] +#[derive(Debug, Default)] pub struct BincodeEncoder { /// Item type processed by this encoder. /// @@ -57,7 +57,7 @@ where /// Like [`BincodeEncoder`], uses default settings for decoding. Can be used on bytestreams (via /// [`FrameDecoder`]) as well as frames (through [`Transcoder`]). See module documentation for /// caveats. -#[derive(Default)] +#[derive(Debug, Default)] pub struct BincodeDecoder { item_type: PhantomData, } diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 4a92dce485..48c329bf3c 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -14,8 +14,8 @@ pub enum Error { BytesreprError(bytesrepr::Error), } -/// A bytesrepr encoder. -#[derive(Default)] +/// Bytesrepr encoder. +#[derive(Debug, Default)] pub struct BytesreprEncoder { /// Item type processed by this encoder. /// @@ -46,7 +46,7 @@ where } /// Bytesrepr decoder. -#[derive(Default)] +#[derive(Debug, Default)] pub struct BytesreprDecoder { item_type: PhantomData, } From a8056e4faf8b3846b6f9d3a2ba60b41e8682f9a9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 10:46:55 +0200 Subject: [PATCH 156/735] Do not format commented out code --- muxink/src/lib.rs | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index a7e5a0c527..00cbe8e14b 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -171,6 +171,7 @@ where } } +#[rustfmt::skip] #[cfg(test)] pub(crate) mod tests { @@ -222,10 +223,8 @@ pub(crate) mod tests { // #[test] // fn from_bytestream_to_multiple_frames() { - // let input = - // &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\ - // x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; let expected: - // &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; + // let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; + // let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; // let defragmentizer = make_defragmentizer(FrameReader::new( // LengthDelimited, From 44b1fa3b0b4c2f02fb801923920fae3d4c805ad7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 10:50:32 +0200 Subject: [PATCH 157/735] Prefer `bytesrepr` `into_bytes()` over `to_bytes()` --- muxink/src/codec/bytesrepr.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 48c329bf3c..a5a73fac47 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -41,7 +41,7 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - Ok(input.to_bytes().map_err(Error::BytesreprError)?.into()) + Ok(input.into_bytes().map_err(Error::BytesreprError)?.into()) } } From 04b601a8b98e343e30591a0a0ce258d583550c84 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 11:13:59 +0200 Subject: [PATCH 158/735] Use `varint` encoding and add test for integers --- muxink/src/codec/bincode.rs | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index d11accc5d0..d0d898c467 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -97,7 +97,7 @@ where let slice: &[u8] = buffer.as_ref(); let mut cursor = Cursor::new(slice); let outcome = DefaultOptions::new() - .with_fixint_encoding() + .with_varint_encoding() .allow_trailing_bytes() .deserialize_from(&mut cursor); (outcome, cursor.position() as usize) @@ -160,7 +160,7 @@ mod tests { #[test] fn decodes_frame() { - let data = b"\x03\0\0\0\0\0\0\0abc\x04\0\0\0\0\0\0\0defg"; + let data = b"\x03abc\x04defg"; let mut bytes: BytesMut = BytesMut::new(); bytes.extend(data); @@ -171,6 +171,20 @@ mod tests { assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "defg")); } + #[test] + fn decodes_frame_of_raw_integers() { + // 40000u16 followed by 7u16 + let data = b"\xfb\x40\x9c\x07"; + + let mut bytes: BytesMut = BytesMut::new(); + bytes.extend(data); + + let mut decoder = BincodeDecoder::::new(); + + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 40000)); + assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 7)); + } + #[test] fn error_when_decoding_incorrect_data() { let data = "abc"; @@ -181,7 +195,7 @@ mod tests { #[test] fn error_when_buffer_not_exhausted() { - let data = b"\x03\0\0\0\0\0\0\0abc\x04\0\0\0\0\0\0\0defg"; + let data = b"\x03abc\x04defg"; let mut decoder = BincodeDecoder::::new(); let actual_error = *decoder.transcode(data).unwrap_err(); @@ -193,7 +207,7 @@ mod tests { #[test] fn error_when_data_incomplete() { - let data = b"\x03\0\0\0\0\0\0\0ab"; + let data = b"\x03ab"; let mut bytes: BytesMut = BytesMut::new(); bytes.extend(data); From 0448111c27126081d80f60cff3b8a7bb9b456483 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 11:22:46 +0200 Subject: [PATCH 159/735] Update comments --- muxink/src/codec/bincode.rs | 2 +- muxink/src/codec/bytesrepr.rs | 5 ++++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index d0d898c467..aa8b552bfd 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -1,6 +1,6 @@ //! Bincode encoding/decoding //! -//! Both encoding and decoding are supported by this module. Note that `BincodeDecoder` supports +//! Both encoding and decoding are supported by this module. Note that `BincodeDecoder` //! implements both [`Transcoder`] and [`FrameDecoder`]. The former operates on frames and is safe //! to use, the latter attempts to parse incoming buffers until successful. For this reason, //! variably sized or large types should be avoided, as decoding will otherwise open up an diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index a5a73fac47..7e98e59587 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -1,8 +1,11 @@ //! Bytesrepr encoding/decoding -use std::{fmt::Debug, marker::PhantomData}; +//! +//! Both encoding and decoding are supported by this module. Note that `BytesreprDecoder` +//! implements both [`Transcoder`] and [`FrameDecoder`]. use bytes::{Buf, Bytes, BytesMut}; use casper_types::bytesrepr::{self, FromBytes, ToBytes}; +use std::{fmt::Debug, marker::PhantomData}; use thiserror::Error; use super::{DecodeResult, FrameDecoder, Transcoder}; From e22f7be6b7200a7a083999dd68db5462a842c9ec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 29 Jul 2022 15:50:46 +0200 Subject: [PATCH 160/735] Do not use `enum` to wrap a single error variant --- muxink/src/codec/bytesrepr.rs | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 7e98e59587..997e3a4a14 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -12,10 +12,8 @@ use super::{DecodeResult, FrameDecoder, Transcoder}; use crate::codec::DecodeResult::Failed; #[derive(Debug, Error)] -pub enum Error { - #[error("bytesrepr error")] - BytesreprError(bytesrepr::Error), -} +#[error("bytesrepr error")] +pub struct Error(bytesrepr::Error); /// Bytesrepr encoder. #[derive(Debug, Default)] @@ -44,7 +42,7 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - Ok(input.into_bytes().map_err(Error::BytesreprError)?.into()) + Ok(input.into_bytes().map_err(|err| Error(err))?.into()) } } @@ -73,7 +71,7 @@ where type Output = T; fn transcode(&mut self, input: R) -> Result { - Ok(bytesrepr::deserialize_from_slice(input).map_err(Error::BytesreprError)?) + Ok(bytesrepr::deserialize_from_slice(input).map_err(|eee| Error(eee))?) } } @@ -97,7 +95,7 @@ where | bytesrepr::Error::LeftOverBytes | bytesrepr::Error::NotRepresentable | bytesrepr::Error::ExceededRecursionDepth - | bytesrepr::Error::OutOfMemory => Failed(Error::BytesreprError(err)), + | bytesrepr::Error::OutOfMemory => Failed(Error(err)), }, } } @@ -156,7 +154,7 @@ mod tests { assert!(matches!( actual_error, - Error::BytesreprError(bytesrepr::Error::LeftOverBytes) + Error(bytesrepr::Error::LeftOverBytes) )); } @@ -169,7 +167,7 @@ mod tests { assert!(matches!( actual_error, - Error::BytesreprError(bytesrepr::Error::EarlyEndOfStream) + Error(bytesrepr::Error::EarlyEndOfStream) )); } } From 873ba32ba230dcac2b4b983a7f2f858cc5c176d1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 15:45:16 +0200 Subject: [PATCH 161/735] muxink: Do not use overly specific `tokio` version --- muxink/Cargo.toml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 186c0801a8..e744742c27 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -10,7 +10,7 @@ bytes = "1.1.0" futures = "0.3.21" serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" -tokio = { version = "1.18.1", features = [ "full" ] } +tokio = { version = "1", features = [ "full" ] } tokio-util = "0.7.2" casper-types = { path = "../types", optional = true } @@ -19,4 +19,4 @@ tokio-stream = "0.1.8" [features] muxink_bincode_codec = [ "serde", "bincode" ] -muxink_bytesrepr_codec = [ "casper-types" ] \ No newline at end of file +muxink_bytesrepr_codec = [ "casper-types" ] From a40cb0af1a55bc4ba51bcff7642a1a4c0eb8f06d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 15:45:50 +0200 Subject: [PATCH 162/735] muxink: Fix incorrect and unnecessary trait bound on `FrameWriter` --- muxink/src/io.rs | 2 -- 1 file changed, 2 deletions(-) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 3b4b90fb7e..7828a62370 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -131,7 +131,6 @@ where pub fn finish_sending(&mut self, cx: &mut Context<'_>) -> Poll> where Self: Sink + Unpin, - F: Buf, W: AsyncWrite + Unpin, { loop { @@ -173,7 +172,6 @@ where Self: Unpin, E: Transcoder, >::Output: Buf, - F: Buf, W: AsyncWrite + Unpin, { type Error = io::Error; From 09f2bbde0c3798cce1262d4a44d308764f3eefa8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 15:45:33 +0200 Subject: [PATCH 163/735] muxink: Implement `Debug` on `FrameWriter`, `LengthDelimited` and `FrameReader` --- muxink/src/codec/length_delimited.rs | 1 + muxink/src/io.rs | 2 ++ 2 files changed, 3 insertions(+) diff --git a/muxink/src/codec/length_delimited.rs b/muxink/src/codec/length_delimited.rs index 3534eed115..ba71a51dba 100644 --- a/muxink/src/codec/length_delimited.rs +++ b/muxink/src/codec/length_delimited.rs @@ -18,6 +18,7 @@ use crate::ImmediateFrame; const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); /// Two-byte length delimited frame encoder and frame decoder. +#[derive(Debug)] pub struct LengthDelimited; impl FrameDecoder for LengthDelimited { diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 7828a62370..e47163d32b 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -27,6 +27,7 @@ use crate::{ /// /// The [`Stream`] implementation on [`FrameDecoder`] is cancellation safe, as it buffers data /// inside the reader, not the `next` future. +#[derive(Debug)] pub struct FrameReader { /// Decoder used to decode frames. decoder: D, @@ -46,6 +47,7 @@ pub struct FrameReader { /// /// The [`Sink`] methods on [`FrameWriter`] are cancellation safe. Only a single item is buffered /// inside the writer itself. +#[derive(Debug)] pub struct FrameWriter, W> { /// The encoder used to encode outgoing frames. encoder: E, From 1f0652ffcfb5e0825f4b038d907c74dcb9a02c77 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 17:19:48 +0200 Subject: [PATCH 164/735] muxink: Fix documentation on `TranscodingSink` and `TranscodingStream` --- muxink/src/codec.rs | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 23c57b18a9..6c14460ee3 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -103,7 +103,7 @@ pub enum TranscodingIoError { Io(IoErr), } -/// A sink adapter for transcoding incoming values into an underlying sink. +/// A sink adapter for transcoding outgoing values before passing them into an underlying sink. #[derive(Debug)] pub struct TranscodingSink { /// Transcoder used to transcode data before passing it to the sink. @@ -178,6 +178,7 @@ where } } +/// A stream adapter for transcoding incoming values from an underlying stream. #[derive(Debug)] pub struct TranscodingStream { /// Transcoder used to transcode data before returning from the stream. From e8870d375c53a265ead90356a6a439dc02534918 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 18:03:33 +0200 Subject: [PATCH 165/735] muxink: Add first draft of `ResultTranscoder` --- muxink/src/codec.rs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 6c14460ee3..d65aefca2e 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -103,6 +103,29 @@ pub enum TranscodingIoError { Io(IoErr), } +#[derive(Debug)] +pub struct ResultTranscoder { + transcoder: Trans, + err_type: PhantomData, +} + +impl Transcoder> for ResultTranscoder +where + Trans: Transcoder, + E2: From + std::error::Error + Debug + Send + Sync + 'static, + Output: Send + Sync + 'static, +{ + type Error = E2; + type Output = Output; + + fn transcode(&mut self, input: Result) -> Result { + match input { + Ok(t1) => self.transcoder.transcode(t1), + Err(err) => Err(err.into()), + } + } +} + /// A sink adapter for transcoding outgoing values before passing them into an underlying sink. #[derive(Debug)] pub struct TranscodingSink { From dc3346992141991c5bf8969092b1aae200ebb017 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 9 Aug 2022 13:20:40 +0200 Subject: [PATCH 166/735] muxink: Handle non-exhaustive `bytesrepr` error in frame decoder --- muxink/src/codec/bytesrepr.rs | 2 ++ 1 file changed, 2 insertions(+) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 997e3a4a14..127e35254c 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -96,6 +96,8 @@ where | bytesrepr::Error::NotRepresentable | bytesrepr::Error::ExceededRecursionDepth | bytesrepr::Error::OutOfMemory => Failed(Error(err)), + // Handle non-exhaustive case. + _ => Failed(Error(err)), }, } } From 51f87ab774a05dbedb8f3dcaece35c13b711fe2d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 9 Aug 2022 13:23:37 +0200 Subject: [PATCH 167/735] muxink: Fix potential future mutable borrow conflict in `bytesrepr` module --- muxink/src/codec/bytesrepr.rs | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index 127e35254c..fb0a6b92f3 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -86,7 +86,8 @@ where let transcoded = FromBytes::from_bytes(buffer.as_ref()); match transcoded { Ok((data, rem)) => { - let _ = buffer.split_to(buffer.remaining() - rem.len()); + let remaining_length = rem.len(); + let _ = buffer.split_to(buffer.remaining() - remaining_length); DecodeResult::Item(data) } Err(err) => match &err { From 141b05d09c464df8d9e10850d52f7e4b6175b640 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 9 Aug 2022 14:08:37 +0200 Subject: [PATCH 168/735] muxink: Add `ResultTranscoder` for transcoding `Result` using a `Transcoder` --- muxink/src/codec.rs | 88 ++++++++++++++++++++++++++++++++----- muxink/src/codec/bincode.rs | 3 +- muxink/src/lib.rs | 44 +++++++++++-------- 3 files changed, 104 insertions(+), 31 deletions(-) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index d65aefca2e..576b490a21 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -103,25 +103,45 @@ pub enum TranscodingIoError { Io(IoErr), } +/// "and_then"-style transcoder (FIXME) +/// +/// Wraps a given transcoder that transcodes from `T -> Result`. The resulting +/// `ResultTranscoder` will transcode a `Result` to `Result>`. +/// +/// alternative: #[derive(Debug)] -pub struct ResultTranscoder { +pub struct ResultTranscoder { transcoder: Trans, - err_type: PhantomData, + err_type: PhantomData, } -impl Transcoder> for ResultTranscoder +impl ResultTranscoder { + /// Creates a new transcoder processing results. + pub fn new(transcoder: Trans) -> Self { + Self { + transcoder, + err_type: PhantomData, + } + } +} + +impl Transcoder> for ResultTranscoder where - Trans: Transcoder, - E2: From + std::error::Error + Debug + Send + Sync + 'static, - Output: Send + Sync + 'static, + Trans: Transcoder, + E: Send + Sync + std::error::Error + 'static, + F: Send + Sync + std::error::Error + 'static, + U: Send + Sync + 'static, { - type Error = E2; - type Output = Output; + type Output = U; + type Error = TranscodingIoError; - fn transcode(&mut self, input: Result) -> Result { + fn transcode(&mut self, input: Result) -> Result { match input { - Ok(t1) => self.transcoder.transcode(t1), - Err(err) => Err(err.into()), + Ok(t1) => self + .transcoder + .transcode(t1) + .map_err(TranscodingIoError::Transcoder), + Err(err) => Err(TranscodingIoError::Io(err)), } } } @@ -228,9 +248,55 @@ where } } } + impl TranscodingStream { /// Creates a new transcoding stream. pub(crate) fn new(transcoder: T, stream: S) -> TranscodingStream { TranscodingStream { transcoder, stream } } } + +#[cfg(test)] + +mod tests { + use bytes::Bytes; + use futures::{stream, FutureExt, StreamExt}; + use thiserror::Error; + + #[test] + #[cfg(feature = "muxink_bincode_codec")] + fn construct_stream_that_transcodes_results() { + use bincode::Options; + + use crate::{ + codec::bincode::{bincode_transcode_options, BincodeDecoder}, + StreamMuxExt, + }; + + let encoded = bincode_transcode_options() + .serialize(&(1u32, 2u32, 3u32)) + .unwrap(); + + /// A mock source error. + #[derive(Debug, Error)] + #[error("source error")] + struct SourceError; + + // The source will yield a single frame that is length delimited. + let source = Box::pin(stream::once(async move { + let raw = Bytes::from(encoded); + Result::<_, SourceError>::Ok(raw) + })); + + let mut stream = source.and_then_transcode(BincodeDecoder::<(u32, u32, u32)>::new()); + + let output = stream + .next() + .now_or_never() + .expect("did not expect not-ready") + .expect("did not expect stream to have ended") + .expect("should be successful item"); + + assert_eq!(output, (1, 2, 3)); + } +} diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs index aa8b552bfd..8d5d6acb5f 100644 --- a/muxink/src/codec/bincode.rs +++ b/muxink/src/codec/bincode.rs @@ -130,7 +130,8 @@ where } } -fn bincode_transcode_options() -> impl bincode::config::Options { +/// Options for bincode encoding when selecting the bincode format. +pub(crate) fn bincode_transcode_options() -> impl bincode::config::Options { DefaultOptions::new() .reject_trailing_bytes() .with_varint_encoding() diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 00cbe8e14b..b271752cf8 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -14,10 +14,10 @@ use std::num::NonZeroUsize; use bytes::Buf; use codec::{ length_delimited::{LengthDelimited, LengthPrefixedFrame}, - Transcoder, TranscodingSink, TranscodingStream, + ResultTranscoder, Transcoder, TranscodingSink, TranscodingStream, }; use fragmented::{Defragmentizer, Fragmentizer, SingleFragment}; -use futures::Sink; +use futures::{Sink, Stream}; /// Helper macro for returning a `Poll::Ready(Err)` eagerly. /// @@ -144,33 +144,39 @@ impl SinkMuxExt for S { } /// Convenience trait for the construction of stream chains. -pub trait StreamMuxExt: Sized { +// Note: The trait bounds are not strictly necessary, but make compiler error messages a lot easier +// to read. +pub trait StreamMuxExt: Sized + Stream + Unpin { /// Wraps the current stream with a transcoder. - fn with_transcoder(self, transcoder: T) -> TranscodingStream; - - /// Wraps the current stream in a bincode transcoder. - #[cfg(feature = "bincode")] - fn bincode(self) -> TranscodingStream, Self> { - self.with_transcoder(codec::bincode::BincodeDecoder::new()) + fn with_transcoder(self, transcoder: T) -> TranscodingStream + where + T: Transcoder + Unpin, + { + TranscodingStream::new(transcoder, self) } - /// Wraps the current stream in a defragmentizer. - fn defragmenting(self, max_frame_size: usize) -> Defragmentizer; -} - -impl StreamMuxExt for S -where - S: Sized, -{ - fn with_transcoder(self, transcoder: T) -> TranscodingStream { - TranscodingStream::new(transcoder, self) + /// Wraps the current stream with a `Result`-mapping transcoder. + #[inline] + fn and_then_transcode( + self, + transcoder: Trans, + ) -> TranscodingStream, Self> + where + Trans: Transcoder, + Self: Stream>, + { + let result_transcoder = ResultTranscoder::<_, E>::new(transcoder); + TranscodingStream::new(result_transcoder, self) } + /// Wraps the current stream in a defragmentizer. fn defragmenting(self, max_frame_size: usize) -> Defragmentizer { Defragmentizer::new(max_frame_size, self) } } +impl StreamMuxExt for S where S: Sized + Stream + Unpin {} + #[rustfmt::skip] #[cfg(test)] pub(crate) mod tests { From 4c7cbc90913c6f55cc76c3c16a7daeba4d36138f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 9 Aug 2022 14:14:46 +0200 Subject: [PATCH 169/735] muxink: Fix clippy issues in `bytesrepr` module --- muxink/src/codec/bytesrepr.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index fb0a6b92f3..c0063599cd 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -42,7 +42,7 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - Ok(input.into_bytes().map_err(|err| Error(err))?.into()) + Ok(input.into_bytes().map_err(Error)?.into()) } } @@ -71,7 +71,7 @@ where type Output = T; fn transcode(&mut self, input: R) -> Result { - Ok(bytesrepr::deserialize_from_slice(input).map_err(|eee| Error(eee))?) + bytesrepr::deserialize_from_slice(input).map_err(Error) } } From f4beb901cb4e6ed2336257c1e74a32e91f89884c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 9 Aug 2022 14:17:00 +0200 Subject: [PATCH 170/735] muxink: Fix additional issues in `bytesrepr` --- muxink/src/codec/bytesrepr.rs | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs index c0063599cd..1e1ff70615 100644 --- a/muxink/src/codec/bytesrepr.rs +++ b/muxink/src/codec/bytesrepr.rs @@ -11,8 +11,11 @@ use thiserror::Error; use super::{DecodeResult, FrameDecoder, Transcoder}; use crate::codec::DecodeResult::Failed; +/// `bytesrepr` error wrapper. +/// +/// Exists solely because `bytesrepr::Error` does not implement `std::error::Error`. #[derive(Debug, Error)] -#[error("bytesrepr error")] +#[error("bytesrepr encoding/decoding error")] pub struct Error(bytesrepr::Error); /// Bytesrepr encoder. @@ -42,7 +45,7 @@ where type Output = Bytes; fn transcode(&mut self, input: T) -> Result { - Ok(input.into_bytes().map_err(Error)?.into()) + input.into_bytes().map_err(Error).map(Bytes::from) } } From 8e12ad0119d39eb8548d8e7f37a2a8a404d67108 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 15:15:02 +0200 Subject: [PATCH 171/735] muxink: Fix link on `io` module documentation --- muxink/src/io.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index e47163d32b..70a090b0c5 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -1,9 +1,9 @@ //! Frame reading and writing //! -//! Frame readers and writers are responsible for writing a [`Bytes`] frame to an [`AsyncWrite`] -//! writer, or reading them from [`AsyncRead`] reader. While writing works for any value that -//! implements the [`bytes::Buf`] trait, decoding requires an implementation of the [`FrameDecoder`] -//! trait. +//! Frame readers and writers are responsible for writing a [`bytes::Bytes`] frame to an +//! [`AsyncWrite`] writer, or reading them from [`AsyncRead`] reader. While writing works for any +//! value that implements the [`bytes::Buf`] trait, decoding requires an implementation of the +//! [`FrameDecoder`] trait. use std::{ io, From 2e870a30b3fff7451a09d7c98ae9792e71b84c62 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 5 Sep 2022 12:52:57 +0200 Subject: [PATCH 172/735] muxink: Remove `bytesrepr` and `bincode` encoding support, to be handled by crate users --- muxink/Cargo.toml | 4 - muxink/src/codec.rs | 4 - muxink/src/codec/bincode.rs | 223 ---------------------------------- muxink/src/codec/bytesrepr.rs | 179 --------------------------- 4 files changed, 410 deletions(-) delete mode 100644 muxink/src/codec/bincode.rs delete mode 100644 muxink/src/codec/bytesrepr.rs diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index e744742c27..3fcafcaa79 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -16,7 +16,3 @@ casper-types = { path = "../types", optional = true } [dev-dependencies] tokio-stream = "0.1.8" - -[features] -muxink_bincode_codec = [ "serde", "bincode" ] -muxink_bytesrepr_codec = [ "casper-types" ] diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs index 576b490a21..01967e5dc1 100644 --- a/muxink/src/codec.rs +++ b/muxink/src/codec.rs @@ -22,10 +22,6 @@ //! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a //! length-prefix. -#[cfg(feature = "muxink_bincode_codec")] -pub mod bincode; -#[cfg(feature = "muxink_bytesrepr_codec")] -pub mod bytesrepr; pub mod length_delimited; use std::{ diff --git a/muxink/src/codec/bincode.rs b/muxink/src/codec/bincode.rs deleted file mode 100644 index 8d5d6acb5f..0000000000 --- a/muxink/src/codec/bincode.rs +++ /dev/null @@ -1,223 +0,0 @@ -//! Bincode encoding/decoding -//! -//! Both encoding and decoding are supported by this module. Note that `BincodeDecoder` -//! implements both [`Transcoder`] and [`FrameDecoder`]. The former operates on frames and is safe -//! to use, the latter attempts to parse incoming buffers until successful. For this reason, -//! variably sized or large types should be avoided, as decoding will otherwise open up an -//! opportunity for an attacker blow up computational complexity of incoming message parsing. - -use std::{ - io::{self, Cursor}, - marker::PhantomData, -}; - -use bincode::{DefaultOptions, Options}; -use bytes::{Buf, Bytes, BytesMut}; -use serde::{de::DeserializeOwned, Serialize}; - -use super::{DecodeResult, FrameDecoder, Transcoder}; - -/// Bincode encoder. -/// -/// Every value is encoded with the default settings of `bincode`. -#[derive(Debug, Default)] -pub struct BincodeEncoder { - /// Item type processed by this encoder. - /// - /// We restrict encoders to a single message type to make decoding on the other end easier. - item_type: PhantomData, -} - -impl BincodeEncoder { - /// Creates a new bincode encoder. - pub fn new() -> Self { - BincodeEncoder { - item_type: PhantomData, - } - } -} - -impl Transcoder for BincodeEncoder -where - T: Serialize, -{ - type Error = bincode::Error; - - type Output = Bytes; - - fn transcode(&mut self, input: T) -> Result { - bincode_transcode_options() - .serialize(&input) - .map(Bytes::from) - } -} - -/// Bincode decoder. -/// -/// Like [`BincodeEncoder`], uses default settings for decoding. Can be used on bytestreams (via -/// [`FrameDecoder`]) as well as frames (through [`Transcoder`]). See module documentation for -/// caveats. -#[derive(Debug, Default)] -pub struct BincodeDecoder { - item_type: PhantomData, -} - -impl BincodeDecoder { - /// Creates a new bincode decoder. - pub fn new() -> Self { - BincodeDecoder { - item_type: PhantomData, - } - } -} - -impl Transcoder for BincodeDecoder -where - T: DeserializeOwned + Send + Sync + 'static, - R: AsRef<[u8]>, -{ - type Error = bincode::Error; - - type Output = T; - - fn transcode(&mut self, input: R) -> Result { - bincode_transcode_options().deserialize(input.as_ref()) - } -} - -impl FrameDecoder for BincodeDecoder -where - T: DeserializeOwned + Send + Sync + 'static, -{ - type Error = bincode::Error; - type Output = T; - - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { - let (outcome, consumed) = { - let slice: &[u8] = buffer.as_ref(); - let mut cursor = Cursor::new(slice); - let outcome = DefaultOptions::new() - .with_varint_encoding() - .allow_trailing_bytes() - .deserialize_from(&mut cursor); - (outcome, cursor.position() as usize) - }; - - match outcome { - Ok(item) => { - buffer.advance(consumed); - DecodeResult::Item(item) - } - Err(err) => match *err { - // Note: `bincode::de::read::SliceReader` hardcodes missing data as - // `io::ErrorKind::UnexpectedEof`, which is what we match on here. This is a - // bit dangerous, since it is not part of the stable API. - // TODO: Write test to ensure this is correct. - bincode::ErrorKind::Io(io_err) if io_err.kind() == io::ErrorKind::UnexpectedEof => { - DecodeResult::Incomplete - } - bincode::ErrorKind::SizeLimit - | bincode::ErrorKind::SequenceMustHaveLength - | bincode::ErrorKind::Custom(_) - | bincode::ErrorKind::InvalidCharEncoding - | bincode::ErrorKind::InvalidTagEncoding(_) - | bincode::ErrorKind::DeserializeAnyNotSupported - | bincode::ErrorKind::Io(_) - | bincode::ErrorKind::InvalidUtf8Encoding(_) - | bincode::ErrorKind::InvalidBoolEncoding(_) => DecodeResult::Failed(err), - }, - } - } -} - -/// Options for bincode encoding when selecting the bincode format. -pub(crate) fn bincode_transcode_options() -> impl bincode::config::Options { - DefaultOptions::new() - .reject_trailing_bytes() - .with_varint_encoding() -} - -#[cfg(test)] -mod tests { - use super::DecodeResult; - use crate::codec::{ - bincode::{BincodeDecoder, BincodeEncoder}, - BytesMut, FrameDecoder, Transcoder, - }; - - #[test] - fn roundtrip() { - let data = "abc"; - - let mut encoder = BincodeEncoder::new(); - let value: String = String::from(data); - let encoded = encoder.transcode(value).expect("should encode"); - - let mut decoder = BincodeDecoder::::new(); - let decoded = decoder.transcode(encoded).expect("should decode"); - - assert_eq!(data, decoded); - } - - #[test] - fn decodes_frame() { - let data = b"\x03abc\x04defg"; - - let mut bytes: BytesMut = BytesMut::new(); - bytes.extend(data); - - let mut decoder = BincodeDecoder::::new(); - - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "abc")); - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "defg")); - } - - #[test] - fn decodes_frame_of_raw_integers() { - // 40000u16 followed by 7u16 - let data = b"\xfb\x40\x9c\x07"; - - let mut bytes: BytesMut = BytesMut::new(); - bytes.extend(data); - - let mut decoder = BincodeDecoder::::new(); - - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 40000)); - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == 7)); - } - - #[test] - fn error_when_decoding_incorrect_data() { - let data = "abc"; - - let mut decoder = BincodeDecoder::::new(); - let _ = decoder.transcode(data).expect_err("should not decode"); - } - - #[test] - fn error_when_buffer_not_exhausted() { - let data = b"\x03abc\x04defg"; - - let mut decoder = BincodeDecoder::::new(); - let actual_error = *decoder.transcode(data).unwrap_err(); - - assert!( - matches!(actual_error, bincode::ErrorKind::Custom(msg) if msg == "Slice had bytes remaining after deserialization") - ); - } - - #[test] - fn error_when_data_incomplete() { - let data = b"\x03ab"; - - let mut bytes: BytesMut = BytesMut::new(); - bytes.extend(data); - - let mut decoder = BincodeDecoder::::new(); - - assert!(matches!( - decoder.decode_frame(&mut bytes), - DecodeResult::Incomplete - )); - } -} diff --git a/muxink/src/codec/bytesrepr.rs b/muxink/src/codec/bytesrepr.rs deleted file mode 100644 index 1e1ff70615..0000000000 --- a/muxink/src/codec/bytesrepr.rs +++ /dev/null @@ -1,179 +0,0 @@ -//! Bytesrepr encoding/decoding -//! -//! Both encoding and decoding are supported by this module. Note that `BytesreprDecoder` -//! implements both [`Transcoder`] and [`FrameDecoder`]. - -use bytes::{Buf, Bytes, BytesMut}; -use casper_types::bytesrepr::{self, FromBytes, ToBytes}; -use std::{fmt::Debug, marker::PhantomData}; -use thiserror::Error; - -use super::{DecodeResult, FrameDecoder, Transcoder}; -use crate::codec::DecodeResult::Failed; - -/// `bytesrepr` error wrapper. -/// -/// Exists solely because `bytesrepr::Error` does not implement `std::error::Error`. -#[derive(Debug, Error)] -#[error("bytesrepr encoding/decoding error")] -pub struct Error(bytesrepr::Error); - -/// Bytesrepr encoder. -#[derive(Debug, Default)] -pub struct BytesreprEncoder { - /// Item type processed by this encoder. - /// - /// We restrict encoders to a single message type to make decoding on the other end easier. - item_type: PhantomData, -} - -impl BytesreprEncoder { - /// Creates a new bytesrepr encoder. - pub fn new() -> Self { - BytesreprEncoder { - item_type: PhantomData, - } - } -} - -impl Transcoder for BytesreprEncoder -where - T: ToBytes, -{ - type Error = Error; - - type Output = Bytes; - - fn transcode(&mut self, input: T) -> Result { - input.into_bytes().map_err(Error).map(Bytes::from) - } -} - -/// Bytesrepr decoder. -#[derive(Debug, Default)] -pub struct BytesreprDecoder { - item_type: PhantomData, -} - -impl BytesreprDecoder { - /// Creates a new bytesrepr decoder. - pub fn new() -> Self { - BytesreprDecoder { - item_type: PhantomData, - } - } -} - -impl Transcoder for BytesreprDecoder -where - T: FromBytes + Send + Sync + 'static, - R: AsRef<[u8]>, -{ - type Error = Error; - - type Output = T; - - fn transcode(&mut self, input: R) -> Result { - bytesrepr::deserialize_from_slice(input).map_err(Error) - } -} - -impl FrameDecoder for BytesreprDecoder -where - T: FromBytes + Send + Sync + 'static, -{ - type Error = Error; - type Output = T; - - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { - let transcoded = FromBytes::from_bytes(buffer.as_ref()); - match transcoded { - Ok((data, rem)) => { - let remaining_length = rem.len(); - let _ = buffer.split_to(buffer.remaining() - remaining_length); - DecodeResult::Item(data) - } - Err(err) => match &err { - bytesrepr::Error::EarlyEndOfStream => DecodeResult::Incomplete, - bytesrepr::Error::Formatting - | bytesrepr::Error::LeftOverBytes - | bytesrepr::Error::NotRepresentable - | bytesrepr::Error::ExceededRecursionDepth - | bytesrepr::Error::OutOfMemory => Failed(Error(err)), - // Handle non-exhaustive case. - _ => Failed(Error(err)), - }, - } - } -} - -#[cfg(test)] -mod tests { - use super::{DecodeResult, Error}; - use crate::codec::{ - bytesrepr::{BytesreprDecoder, BytesreprEncoder}, - BytesMut, FrameDecoder, Transcoder, - }; - use casper_types::bytesrepr; - - #[test] - fn roundtrip() { - let data = "abc"; - - let mut encoder = BytesreprEncoder::new(); - let value: String = String::from(data); - let encoded = encoder.transcode(value).expect("should encode"); - - let mut decoder = BytesreprDecoder::::new(); - let decoded = decoder.transcode(encoded).expect("should decode"); - - assert_eq!(data, decoded); - } - - #[test] - fn decodes_frame() { - let data = b"\x03\0\0\0abc\x04\0\0\0defg"; - - let mut bytes: BytesMut = BytesMut::new(); - bytes.extend(data); - - let mut decoder = BytesreprDecoder::::new(); - - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "abc")); - assert!(matches!(decoder.decode_frame(&mut bytes), DecodeResult::Item(i) if i == "defg")); - } - - #[test] - fn error_when_decoding_incorrect_data() { - let data = "abc"; - - let mut decoder = BytesreprDecoder::::new(); - let _ = decoder.transcode(data).expect_err("should not decode"); - } - - #[test] - fn error_when_buffer_not_exhausted() { - let data = b"\x03\0\0\0abc\x04\0\0\0defg"; - - let mut decoder = BytesreprDecoder::::new(); - let actual_error = decoder.transcode(data).unwrap_err(); - - assert!(matches!( - actual_error, - Error(bytesrepr::Error::LeftOverBytes) - )); - } - - #[test] - fn error_when_data_incomplete() { - let data = b"\x03\0\0\0ab"; - - let mut decoder = BytesreprDecoder::::new(); - let actual_error = decoder.transcode(data).unwrap_err(); - - assert!(matches!( - actual_error, - Error(bytesrepr::Error::EarlyEndOfStream) - )); - } -} From fd6f5a9a35c51f3c6f50914abc24b4e835291418 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 5 Sep 2022 13:45:56 +0200 Subject: [PATCH 173/735] muxink: Remove transcoders in favor of simpler `FrameEncoder` and `FrameDecoder` --- muxink/src/codec.rs | 298 ------------------ muxink/src/framing.rs | 66 ++++ .../{codec => framing}/length_delimited.rs | 42 +-- muxink/src/io.rs | 28 +- muxink/src/lib.rs | 101 +----- 5 files changed, 105 insertions(+), 430 deletions(-) delete mode 100644 muxink/src/codec.rs create mode 100644 muxink/src/framing.rs rename muxink/src/{codec => framing}/length_delimited.rs (93%) diff --git a/muxink/src/codec.rs b/muxink/src/codec.rs deleted file mode 100644 index 01967e5dc1..0000000000 --- a/muxink/src/codec.rs +++ /dev/null @@ -1,298 +0,0 @@ -//! Value or frame transcoding. -//! -//! All operations on values or frame that can be expressed as a one-to-one mapping are performed a -//! using transcoder that implementing the [`Transcoder`] trait. -//! -//! To use transcoders with [`Sink`]s or [`Stream`]s, the [`TranscodingSink`] and -//! [`TranscodingStream`] should be used. Additionally, -//! [`SinkMuxExt::with_transcoder`](crate::SinkMuxExt::with_transcoder) and -//! [`StreamMuxExt::with_transcoder`] provide convenient methods to construct these. -//! -//! # Transcoders and frame decoders -//! -//! A concrete [`Transcoder`] specifies how to translate an input value into an output value. In -//! constrast, a [`FrameDecoder`] is a special decoder that works on a continous stream of bytes (as -//! opposed to already disjunct frames) with the help of an -//! [`io::FrameReader`](crate::io::FrameReader). -//! -//! # Available implementations -//! -//! Currently, the following transcoders and frame decoders are available: -//! -//! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a -//! length-prefix. - -pub mod length_delimited; - -use std::{ - fmt::Debug, - marker::PhantomData, - pin::Pin, - task::{Context, Poll}, -}; - -use bytes::BytesMut; -use futures::{ready, Sink, SinkExt, Stream, StreamExt}; -use thiserror::Error; - -/// Transcoder. -/// -/// A transcoder takes a value of one kind and transforms it to another. Transcoders may contain a -/// state or configuration, which is why this trait is not just a function. -pub trait Transcoder { - /// Transcoding error. - type Error: std::error::Error + Debug + Send + Sync + 'static; - - /// The output produced by the transcoder. - type Output: Send + Sync + 'static; - - /// Transcodes a value. - /// - /// Note: When transcoding to type-erased values it should contain the information required for - /// an accompanying reverse-direction transcode to be able to reconstruct the value from - /// the transcoded data. - fn transcode(&mut self, input: Input) -> Result; -} - -/// Frame decoder. -/// -/// A frame decoder extracts a frame from a continous bytestream. -/// -/// Note that there is no `FrameEncoder` trait, since the direction would be covered by a "normal" -/// transcoder implementing [`Transcoder`]. -pub trait FrameDecoder { - /// Decoding error. - type Error: std::error::Error + Send + Sync + 'static; - - type Output: Send + Sync + 'static; - - /// Decodes a frame from a buffer. - /// - /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for - /// details. - /// - /// Implementers of this function are expected to remove completed frames from `buffer`. - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; -} - -/// The outcome of a [`decode_frame`] call. -#[derive(Debug, Error)] -pub enum DecodeResult { - /// A complete item was decoded. - Item(T), - /// No frame could be decoded, an unknown amount of bytes is still required. - Incomplete, - /// No frame could be decoded, but the remaining amount of bytes required is known. - Remaining(usize), - /// Irrecoverably failed to decode frame. - Failed(E), -} - -/// Error transcoding data from/for an underlying input/output type. -#[derive(Debug, Error)] -pub enum TranscodingIoError { - /// The transcoder failed to transcode the given value. - #[error("transcoding failed")] - Transcoder(#[source] TransErr), - /// The wrapped input/output returned an error. - #[error(transparent)] - Io(IoErr), -} - -/// "and_then"-style transcoder (FIXME) -/// -/// Wraps a given transcoder that transcodes from `T -> Result`. The resulting -/// `ResultTranscoder` will transcode a `Result` to `Result>`. -/// -/// alternative: -#[derive(Debug)] -pub struct ResultTranscoder { - transcoder: Trans, - err_type: PhantomData, -} - -impl ResultTranscoder { - /// Creates a new transcoder processing results. - pub fn new(transcoder: Trans) -> Self { - Self { - transcoder, - err_type: PhantomData, - } - } -} - -impl Transcoder> for ResultTranscoder -where - Trans: Transcoder, - E: Send + Sync + std::error::Error + 'static, - F: Send + Sync + std::error::Error + 'static, - U: Send + Sync + 'static, -{ - type Output = U; - type Error = TranscodingIoError; - - fn transcode(&mut self, input: Result) -> Result { - match input { - Ok(t1) => self - .transcoder - .transcode(t1) - .map_err(TranscodingIoError::Transcoder), - Err(err) => Err(TranscodingIoError::Io(err)), - } - } -} - -/// A sink adapter for transcoding outgoing values before passing them into an underlying sink. -#[derive(Debug)] -pub struct TranscodingSink { - /// Transcoder used to transcode data before passing it to the sink. - transcoder: T, - /// Underlying sink where data is sent. - sink: S, - /// Phantom data to associate the input with this transcoding sink. - _input_frame: PhantomData, -} - -impl TranscodingSink { - /// Creates a new transcoding sink. - pub fn new(transcoder: T, sink: S) -> Self { - Self { - transcoder, - sink, - _input_frame: PhantomData, - } - } -} - -impl Sink for TranscodingSink -where - Input: Unpin + std::fmt::Debug, - T: Transcoder + Unpin, - S: Sink + Unpin, - T::Output: std::fmt::Debug, - >::Error: std::error::Error, -{ - type Error = TranscodingIoError; - - #[inline] - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - self_mut - .sink - .poll_ready_unpin(cx) - .map_err(TranscodingIoError::Io) - } - - #[inline] - fn start_send(self: Pin<&mut Self>, item: Input) -> Result<(), Self::Error> { - let self_mut = self.get_mut(); - - let transcoded = self_mut - .transcoder - .transcode(item) - .map_err(TranscodingIoError::Transcoder)?; - - self_mut - .sink - .start_send_unpin(transcoded) - .map_err(TranscodingIoError::Io) - } - - #[inline] - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - self_mut - .sink - .poll_flush_unpin(cx) - .map_err(TranscodingIoError::Io) - } - - #[inline] - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - self_mut - .sink - .poll_close_unpin(cx) - .map_err(TranscodingIoError::Io) - } -} - -/// A stream adapter for transcoding incoming values from an underlying stream. -#[derive(Debug)] -pub struct TranscodingStream { - /// Transcoder used to transcode data before returning from the stream. - transcoder: T, - /// Underlying stream from which data is receveid. - stream: S, -} - -impl Stream for TranscodingStream -where - T: Transcoder + Unpin, - S: Stream + Unpin, -{ - type Item = Result; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - match ready!(self_mut.stream.poll_next_unpin(cx)) { - Some(input) => match self_mut.transcoder.transcode(input) { - Ok(transcoded) => Poll::Ready(Some(Ok(transcoded))), - Err(err) => Poll::Ready(Some(Err(err))), - }, - None => Poll::Ready(None), - } - } -} - -impl TranscodingStream { - /// Creates a new transcoding stream. - pub(crate) fn new(transcoder: T, stream: S) -> TranscodingStream { - TranscodingStream { transcoder, stream } - } -} - -#[cfg(test)] - -mod tests { - use bytes::Bytes; - use futures::{stream, FutureExt, StreamExt}; - use thiserror::Error; - - #[test] - #[cfg(feature = "muxink_bincode_codec")] - fn construct_stream_that_transcodes_results() { - use bincode::Options; - - use crate::{ - codec::bincode::{bincode_transcode_options, BincodeDecoder}, - StreamMuxExt, - }; - - let encoded = bincode_transcode_options() - .serialize(&(1u32, 2u32, 3u32)) - .unwrap(); - - /// A mock source error. - #[derive(Debug, Error)] - #[error("source error")] - struct SourceError; - - // The source will yield a single frame that is length delimited. - let source = Box::pin(stream::once(async move { - let raw = Bytes::from(encoded); - Result::<_, SourceError>::Ok(raw) - })); - - let mut stream = source.and_then_transcode(BincodeDecoder::<(u32, u32, u32)>::new()); - - let output = stream - .next() - .now_or_never() - .expect("did not expect not-ready") - .expect("did not expect stream to have ended") - .expect("should be successful item"); - - assert_eq!(output, (1, 2, 3)); - } -} diff --git a/muxink/src/framing.rs b/muxink/src/framing.rs new file mode 100644 index 0000000000..9ae3fe4974 --- /dev/null +++ b/muxink/src/framing.rs @@ -0,0 +1,66 @@ +//! Frame encoding/decoding. +//! +//! A frame is a finite unit of bytes to be sent discretely over an underlying networking stream. +//! Usually some sort of framing mechanism needs to be employed to convert from discrete values to +//! continuous bytestreams and back, see the [`FrameEncoder`] and [`FrameDecoder`] traits for +//! details. +//! +//! # Available implementations +//! +//! Currently, the following transcoders and frame decoders are available: +//! +//! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a +//! length-prefix. + +pub mod length_delimited; + +use std::fmt::Debug; + +use bytes::{Buf, Bytes, BytesMut}; +use thiserror::Error; + +/// Frame decoder. +/// +/// A frame decoder extracts a frame from a continous bytestream. +pub trait FrameDecoder { + /// Decoding error. + type Error: std::error::Error + Send + Sync + 'static; + + /// Decodes a frame from a buffer. + /// + /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for + /// details. + /// + /// Implementers of this function are expected to remove completed frames from `buffer`. + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; +} + +/// Frame encoder. +/// +/// A frame encoder encodes a frame into a representation suitable for writing to a bytestream. +pub trait FrameEncoder +where + T: Buf, +{ + /// Encoding error. + type Error: std::error::Error + Send + Sync + 'static; + + /// The output containing an encoded frame. + type Output: Buf + Send; + + /// Encodes a given frame into a sendable representation. + fn encode_frame(&mut self, buffer: T) -> Result; +} + +/// The outcome of a [`decode_frame`] call. +#[derive(Debug, Error)] +pub enum DecodeResult { + /// A complete item was decoded. + Item(T), + /// No frame could be decoded, an unknown amount of bytes is still required. + Incomplete, + /// No frame could be decoded, but the remaining amount of bytes required is known. + Remaining(usize), + /// Irrecoverably failed to decode frame. + Failed(E), +} diff --git a/muxink/src/codec/length_delimited.rs b/muxink/src/framing/length_delimited.rs similarity index 93% rename from muxink/src/codec/length_delimited.rs rename to muxink/src/framing/length_delimited.rs index ba71a51dba..59ed68b274 100644 --- a/muxink/src/codec/length_delimited.rs +++ b/muxink/src/framing/length_delimited.rs @@ -11,7 +11,7 @@ use std::convert::Infallible; use bytes::{Buf, Bytes, BytesMut}; use thiserror::Error; -use super::{DecodeResult, FrameDecoder, Transcoder}; +use super::{DecodeResult, FrameDecoder, FrameEncoder}; use crate::ImmediateFrame; /// Lenght of the prefix that describes the length of the following frame. @@ -21,9 +21,28 @@ const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); #[derive(Debug)] pub struct LengthDelimited; +/// The frame type for length prefixed frames. +pub type LengthPrefixedFrame = bytes::buf::Chain, F>; + +impl FrameEncoder for LengthDelimited +where + B: Buf + Send, +{ + type Error = LengthExceededError; + + type Output = LengthPrefixedFrame; + + fn encode_frame(&mut self, buffer: B) -> Result { + let remaining = buffer.remaining(); + let length: u16 = remaining + .try_into() + .map_err(|_err| LengthExceededError(remaining))?; + Ok(ImmediateFrame::from(length).chain(buffer)) + } +} + impl FrameDecoder for LengthDelimited { type Error = Infallible; - type Output = Bytes; fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { let bytes_in_buffer = buffer.remaining(); @@ -54,25 +73,6 @@ impl FrameDecoder for LengthDelimited { #[error("outgoing frame would exceed maximum frame length of 64 KB: {0}")] pub struct LengthExceededError(usize); -/// The frame type for length prefixed frames. -pub type LengthPrefixedFrame = bytes::buf::Chain, F>; - -impl Transcoder for LengthDelimited -where - F: Buf + Send + Sync + 'static, -{ - type Error = LengthExceededError; - type Output = LengthPrefixedFrame; - - fn transcode(&mut self, input: F) -> Result { - let remaining = input.remaining(); - let length: u16 = remaining - .try_into() - .map_err(|_err| LengthExceededError(remaining))?; - Ok(ImmediateFrame::from(length).chain(input)) - } -} - #[cfg(test)] mod tests { use futures::io::Cursor; diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 70a090b0c5..c69649e39b 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -11,15 +11,15 @@ use std::{ task::{Context, Poll}, }; -use bytes::{Buf, BytesMut}; +use bytes::{Buf, Bytes, BytesMut}; use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; use crate::{ - codec::{DecodeResult, FrameDecoder, Transcoder}, + framing::{DecodeResult, FrameDecoder, FrameEncoder}, try_ready, }; -/// Frame decoder for an underlying reader. +/// Reads frames from an underlying reader. /// /// Uses the given [`FrameDecoder`] `D` to read frames from the underlying IO. /// @@ -41,14 +41,18 @@ pub struct FrameReader { /// Writer for frames. /// -/// Simply writes any given [`Buf`]-implementing frame to the underlying writer. +/// Writes a frame to the underlying writer after encoding it using the given [`FrameEncoder`]. /// /// # Cancellation safety /// /// The [`Sink`] methods on [`FrameWriter`] are cancellation safe. Only a single item is buffered /// inside the writer itself. #[derive(Debug)] -pub struct FrameWriter, W> { +pub struct FrameWriter +where + E: FrameEncoder, + F: Buf, +{ /// The encoder used to encode outgoing frames. encoder: E, /// Underlying async bytestream being written. @@ -79,7 +83,7 @@ where D: FrameDecoder + Unpin, R: AsyncRead + Unpin, { - type Item = io::Result<::Output>; + type Item = io::Result; fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let FrameReader { @@ -118,8 +122,9 @@ where impl FrameWriter where - E: Transcoder, - >::Output: Buf, + E: FrameEncoder, + >::Output: Buf, + F: Buf, { /// Creates a new frame writer with the given encoder. pub fn new(encoder: E, stream: W) -> Self { @@ -172,8 +177,9 @@ where impl Sink for FrameWriter where Self: Unpin, - E: Transcoder, - >::Output: Buf, + E: FrameEncoder, + >::Output: Buf, + F: Buf, W: AsyncWrite + Unpin, { type Error = io::Error; @@ -191,7 +197,7 @@ where fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { let wrapped_frame = self .encoder - .transcode(item) + .encode_frame(item) .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?; self.current_frame = Some(wrapped_frame); diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index b271752cf8..7df7bf2c41 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -1,23 +1,15 @@ //! Asynchronous multiplexing pub mod backpressured; -pub mod codec; pub mod error; pub mod fragmented; +pub mod framing; pub mod io; pub mod mux; #[cfg(test)] pub mod testing; -use std::num::NonZeroUsize; - use bytes::Buf; -use codec::{ - length_delimited::{LengthDelimited, LengthPrefixedFrame}, - ResultTranscoder, Transcoder, TranscodingSink, TranscodingStream, -}; -use fragmented::{Defragmentizer, Fragmentizer, SingleFragment}; -use futures::{Sink, Stream}; /// Helper macro for returning a `Poll::Ready(Err)` eagerly. /// @@ -86,97 +78,6 @@ where } } -/// Convenience trait for construction of sink chains. -pub trait SinkMuxExt: Sized { - /// Wraps the current sink in a transcoder. - /// - /// The resulting sink will pass all items through the given transcoder before passing them on. - fn with_transcoder( - self, - transcoder: T, - ) -> TranscodingSink - where - T: Transcoder; - - /// Wraps the current sink in a bincode transcoder. - #[cfg(feature = "bincode")] - fn bincode(self) -> TranscodingSink, T, Self> - where - Self: Sink, - T: serde::Serialize + Sync + Send + 'static, - { - self.with_transcoder(codec::bincode::BincodeEncoder::new()) - } - - /// Wraps the current sink in a fragmentizer. - fn fragmenting(self, fragment_size: NonZeroUsize) -> Fragmentizer - where - Self: Sink + Unpin, - F: Buf + Send + Sync + 'static; - - /// Wrap current sink in length delimination. - /// - /// Equivalent to `.with_transcoder(LengthDelimited)`. - fn length_delimited(self) -> TranscodingSink - where - Self: Sink>, - F: Buf + Send + Sync + 'static, - { - self.with_transcoder(LengthDelimited) - } -} - -impl SinkMuxExt for S { - fn with_transcoder( - self, - transcoder: T, - ) -> TranscodingSink { - TranscodingSink::new(transcoder, self) - } - - fn fragmenting(self, fragment_size: NonZeroUsize) -> Fragmentizer - where - Self: Sink + Unpin, - F: Buf + Send + Sync + 'static, - { - Fragmentizer::new(fragment_size, self) - } -} - -/// Convenience trait for the construction of stream chains. -// Note: The trait bounds are not strictly necessary, but make compiler error messages a lot easier -// to read. -pub trait StreamMuxExt: Sized + Stream + Unpin { - /// Wraps the current stream with a transcoder. - fn with_transcoder(self, transcoder: T) -> TranscodingStream - where - T: Transcoder + Unpin, - { - TranscodingStream::new(transcoder, self) - } - - /// Wraps the current stream with a `Result`-mapping transcoder. - #[inline] - fn and_then_transcode( - self, - transcoder: Trans, - ) -> TranscodingStream, Self> - where - Trans: Transcoder, - Self: Stream>, - { - let result_transcoder = ResultTranscoder::<_, E>::new(transcoder); - TranscodingStream::new(result_transcoder, self) - } - - /// Wraps the current stream in a defragmentizer. - fn defragmenting(self, max_frame_size: usize) -> Defragmentizer { - Defragmentizer::new(max_frame_size, self) - } -} - -impl StreamMuxExt for S where S: Sized + Stream + Unpin {} - #[rustfmt::skip] #[cfg(test)] pub(crate) mod tests { From 61ad058c9a2682eb48060c235c34865f15a6b4a8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 5 Sep 2022 15:07:37 +0200 Subject: [PATCH 174/735] muxink: Remove obsolete `fragment_frame` function --- muxink/src/fragmented.rs | 28 +--------------------------- 1 file changed, 1 insertion(+), 27 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 886f75e491..8b24b66d82 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -14,7 +14,7 @@ use bytes::{Buf, Bytes, BytesMut}; use futures::{ready, Sink, SinkExt, Stream, StreamExt}; use thiserror::Error; -use crate::{error::Error, try_ready, ImmediateFrame}; +use crate::{try_ready, ImmediateFrame}; pub type SingleFragment = bytes::buf::Chain, Bytes>; @@ -245,32 +245,6 @@ where } } -/// Splits a frame into ready-to-send fragments. -/// -/// # Notes -/// -/// Internally, data is copied into fragments by using `Buf::copy_to_bytes`. It is advisable to use -/// a `B` that has an efficient implementation for this that avoids copies, like `Bytes` itself. -pub fn fragment_frame( - mut frame: B, - fragment_size: NonZeroUsize, -) -> Result, Error> { - let fragment_size: usize = fragment_size.into(); - let num_frames = (frame.remaining() + fragment_size - 1) / fragment_size; - - Ok((0..num_frames).into_iter().map(move |_| { - let remaining = frame.remaining().min(fragment_size); - let fragment_data = frame.copy_to_bytes(remaining); - - let continuation_byte: u8 = if frame.has_remaining() { - MORE_FRAGMENTS - } else { - FINAL_FRAGMENT - }; - ImmediateFrame::from(continuation_byte).chain(fragment_data) - })) -} - #[cfg(test)] mod tests { From 429bcf659aaf6cfb0a9aa157b46d86b4ed65f9ee Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Mon, 5 Sep 2022 16:15:56 +0300 Subject: [PATCH 175/735] muxink: Fix fragmenting logic in muxink Signed-off-by: George Pisaltu --- muxink/src/fragmented.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 8b24b66d82..67fc563776 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -118,7 +118,7 @@ where // At this point everything has been buffered, so we defer to the underlying sink's flush to // ensure the final fragment also has been sent. - self_mut.poll_flush_unpin(cx) + self_mut.sink.poll_flush_unpin(cx) } fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -126,7 +126,7 @@ where try_ready!(ready!(self_mut.flush_current_frame(cx))); - self_mut.poll_close_unpin(cx) + self_mut.sink.poll_close_unpin(cx) } } @@ -191,8 +191,8 @@ where match ready!(self_mut.stream.poll_next_unpin(cx)) { Some(Ok(mut next_fragment)) => { let is_final = match next_fragment.get(0).cloned() { - Some(MORE_FRAGMENTS) => true, - Some(FINAL_FRAGMENT) => false, + Some(MORE_FRAGMENTS) => false, + Some(FINAL_FRAGMENT) => true, Some(invalid) => { return Poll::Ready(Some(Err( DefragmentizerError::InvalidFragmentHeader(invalid), From c4898485b7a47be0a0780c41b9b04cecb234031a Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Mon, 5 Sep 2022 16:16:51 +0300 Subject: [PATCH 176/735] muxink: Add tests for muxink fragmenting Signed-off-by: George Pisaltu --- muxink/src/fragmented.rs | 409 ++++++++++++++++++++++++++++++++++----- 1 file changed, 360 insertions(+), 49 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 67fc563776..c296f96f4c 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -247,54 +247,365 @@ where #[cfg(test)] mod tests { + use std::{convert::Infallible, num::NonZeroUsize, sync::Arc}; + + use bytes::{Buf, Bytes}; + use futures::{channel::mpsc, FutureExt, SinkExt, StreamExt}; + + use crate::{ + fragmented::{Defragmentizer, DefragmentizerError}, + testing::testing_sink::TestingSink, + }; + + use super::{Fragmentizer, SingleFragment}; + + const CHANNEL_BUFFER_SIZE: usize = 1000; + + impl PartialEq for DefragmentizerError { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (Self::InvalidFragmentHeader(l0), Self::InvalidFragmentHeader(r0)) => l0 == r0, + ( + Self::MaximumFrameSizeExceeded { max: l_max }, + Self::MaximumFrameSizeExceeded { max: r_max }, + ) => l_max == r_max, + (Self::Io(_), Self::Io(_)) => true, + _ => core::mem::discriminant(self) == core::mem::discriminant(other), + } + } + } + + #[test] + fn fragmenter_basic() { + const FRAGMENT_SIZE: usize = 8; + + let testing_sink = Arc::new(TestingSink::new()); + let mut fragmentizer = Fragmentizer::new( + NonZeroUsize::new(FRAGMENT_SIZE).unwrap(), + testing_sink.clone().into_ref(), + ); + + let frame_data = b"01234567890abcdefghijklmno"; + let frame = Bytes::from(frame_data.to_vec()); + + fragmentizer + .send(frame) + .now_or_never() + .expect("fragmentizer was pending") + .expect("fragmentizer failed"); + + let contents = testing_sink.get_contents(); + assert_eq!(contents, b"\x0001234567\x00890abcde\x00fghijklm\xFFno"); + } - // #[test] - // fn basic_fragmenting_works() { - // let frame = b"01234567890abcdefghijklmno"; - - // let sink: Vec< = Vec::new(); - - // let fragments: Vec<_> = fragment_frame(&frame[..], 7.try_into().unwrap()) - // .expect("fragmenting failed") - // .map(collect_buf) - // .collect(); - - // assert_eq!( - // fragments, - // vec![ - // b"\x000123456".to_vec(), - // b"\x007890abc".to_vec(), - // b"\x00defghij".to_vec(), - // b"\xffklmno".to_vec(), - // ] - // ); - - // // Try with a fragment size that ends exactly on the frame boundary. - // let frame = b"012345"; - // let fragments: Vec<_> = fragment_frame(&frame[..], 3.try_into().unwrap()) - // .expect("fragmenting failed") - // .map(collect_buf) - // .collect(); - - // assert_eq!(fragments, vec![b"\x00012".to_vec(), b"\xff345".to_vec(),]); - // } - - // #[test] - // fn fragmenting_for_small_size_works() { - // let frame = b"012345"; - // let fragments: Vec<_> = fragment_frame(&frame[..], 6.try_into().unwrap()) - // .expect("fragmenting failed") - // .map(collect_buf) - // .collect(); - - // assert_eq!(fragments, vec![b"\xff012345".to_vec()]); - - // // Try also with mismatched fragment size. - // let fragments: Vec<_> = fragment_frame(&frame[..], 15.try_into().unwrap()) - // .expect("fragmenting failed") - // .map(collect_buf) - // .collect(); - - // assert_eq!(fragments, vec![b"\xff012345".to_vec()]); - // } + #[test] + fn defragmentizer_basic() { + let frame_data = b"01234567890abcdefghijklmno"; + let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + fragments.push(b"\xFFno".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + for fragment in fragments { + sender + .send(Ok(fragment)) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + } + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + let defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let frames: Vec = defragmentizer + .map(|bytes_result| bytes_result.unwrap()) + .collect() + .now_or_never() + .unwrap(); + assert_eq!(frames.len(), 1); + assert_eq!(frames[0], frame_data.as_slice()); + } + + #[test] + fn fragment_roundtrip() { + const FRAGMENT_SIZE: usize = 8; + let original_frame = b"01234567890abcdefghijklmno"; + let frame_vec = original_frame.to_vec(); + let frame = Bytes::from(frame_vec); + let (sender, receiver) = mpsc::channel::(CHANNEL_BUFFER_SIZE); + + { + let mut fragmentizer = Fragmentizer::new(FRAGMENT_SIZE.try_into().unwrap(), sender); + fragmentizer + .send(frame.clone()) + .now_or_never() + .expect("Couldn't send frame") + .unwrap(); + fragmentizer + .flush() + .now_or_never() + .expect("Couldn't flush sender") + .unwrap(); + } + + let receiver = receiver.map(|mut fragment| { + let item: Result> = + Ok(fragment.copy_to_bytes(fragment.remaining())); + item + }); + + let defragmentizer = Defragmentizer::new(original_frame.len(), receiver); + let frames: Vec = defragmentizer + .map(|bytes_result| bytes_result.unwrap()) + .collect() + .now_or_never() + .unwrap(); + assert_eq!(frames.len(), 1); + assert_eq!(frames[0], original_frame.as_slice()); + } + + #[test] + fn defragmentizer_incomplete_frame() { + let frame_data = b"01234567890abcdefghijklmno"; + let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + fragments.push(b"\xFFno".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + // Send just 2 frames and prematurely close the stream. + sender + .send(Ok(fragments[0].clone())) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + sender + .send(Ok(fragments[1].clone())) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + // Ensure we don't incorrectly yield a frame. + assert_eq!( + defragmentizer + .next() + .now_or_never() + .unwrap() + .unwrap() + .unwrap_err(), + DefragmentizerError::IncompleteFrame + ); + } + + #[test] + fn defragmentizer_invalid_fragment_header() { + let frame_data = b"01234567890abcdefghijklmno"; + // Insert invalid header '0xAB' into the first fragment. + let mut fragments: Vec = [b"\xAB01234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + fragments.push(b"\xFFno".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + for fragment in fragments { + sender + .send(Ok(fragment)) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + } + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + assert_eq!( + defragmentizer + .next() + .now_or_never() + .unwrap() + .unwrap() + .unwrap_err(), + DefragmentizerError::InvalidFragmentHeader(0xAB) + ); + } + + #[test] + fn defragmentizer_zero_length_non_final_fragment() { + let frame_data = b"01234567890abcdefghijklmno"; + let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + // Insert an empty, non-final fragment with just the header. + fragments.push(b"\x00".as_slice().into()); + fragments.push(b"\xFFno".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + for fragment in fragments { + sender + .send(Ok(fragment)) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + } + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + assert_eq!( + defragmentizer + .next() + .now_or_never() + .unwrap() + .unwrap() + .unwrap_err(), + DefragmentizerError::NonFinalZeroLengthFragment + ); + } + + #[test] + fn defragmentizer_zero_length_final_fragment() { + let frame_data = b"01234567890abcdefghijklm"; + let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + // Insert an empty, final fragment with just the header. This should + // succeed as the requirement to have non-empty fragments only applies + // to non-final fragments. + fragments.push(b"\xFF".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + for fragment in fragments { + sender + .send(Ok(fragment)) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + } + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + let defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let frames: Vec = defragmentizer + .map(|bytes_result| bytes_result.unwrap()) + .collect() + .now_or_never() + .unwrap(); + assert_eq!(frames.len(), 1); + assert_eq!(frames[0], frame_data.as_slice()); + } + + #[test] + fn defragmentizer_missing_fragment_header() { + let frame_data = b"01234567890abcdefghijklmno"; + let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + // Insert an empty fragment, not even a header in it. + fragments.push(b"".as_slice().into()); + fragments.push(b"\xFFno".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + for fragment in fragments { + sender + .send(Ok(fragment)) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + } + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + assert_eq!( + defragmentizer + .next() + .now_or_never() + .unwrap() + .unwrap() + .unwrap_err(), + DefragmentizerError::MissingFragmentHeader + ); + } + + #[test] + fn defragmentizer_max_frame_size_exceeded() { + let frame_data = b"01234567890abcdefghijklmno"; + let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] + .into_iter() + .map(|bytes| bytes.as_slice().into()) + .collect(); + fragments.push(b"\xFFno".as_slice().into()); + + let (mut sender, receiver) = + mpsc::channel::>(CHANNEL_BUFFER_SIZE); + for fragment in fragments { + sender + .send(Ok(fragment)) + .now_or_never() + .expect("Couldn't send encoded frame") + .unwrap(); + } + sender + .flush() + .now_or_never() + .expect("Couldn't flush") + .unwrap(); + drop(sender); + + // Initialize the defragmentizer with a max frame length lower than what + // we're trying to send. + let mut defragmentizer = Defragmentizer::new(frame_data.len() - 1, receiver); + // Ensure the data doesn't fit in the frame size limit. + assert_eq!( + defragmentizer + .next() + .now_or_never() + .unwrap() + .unwrap() + .unwrap_err(), + DefragmentizerError::MaximumFrameSizeExceeded { + max: frame_data.len() - 1 + } + ); + } } From 18c0b0b2789f52576e6e5ee415befba2de8ee2a2 Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Tue, 6 Sep 2022 18:48:00 +0300 Subject: [PATCH 177/735] muxink: Simplify fragmenting testing using `stream::iter` Co-authored-by: Marc Brinkmann Signed-off-by: George Pisaltu --- muxink/src/fragmented.rs | 208 +++++++++------------------------------ 1 file changed, 44 insertions(+), 164 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index c296f96f4c..af07b96603 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -247,10 +247,10 @@ where #[cfg(test)] mod tests { - use std::{convert::Infallible, num::NonZeroUsize, sync::Arc}; + use std::{convert::Infallible, io, num::NonZeroUsize, sync::Arc}; use bytes::{Buf, Bytes}; - use futures::{channel::mpsc, FutureExt, SinkExt, StreamExt}; + use futures::{channel::mpsc, stream, FutureExt, SinkExt, StreamExt}; use crate::{ fragmented::{Defragmentizer, DefragmentizerError}, @@ -275,6 +275,15 @@ mod tests { } } + /// Builds a sequence of frames that could have been read from the network. + fn build_frame_input(frames: &[&'static [u8]]) -> Vec> { + frames + .into_iter() + .map(|&x| Bytes::from(x)) + .map(Result::Ok) + .collect() + } + #[test] fn fragmenter_basic() { const FRAGMENT_SIZE: usize = 8; @@ -301,29 +310,10 @@ mod tests { #[test] fn defragmentizer_basic() { let frame_data = b"01234567890abcdefghijklmno"; - let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); - fragments.push(b"\xFFno".as_slice().into()); - - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - for fragment in fragments { - sender - .send(Ok(fragment)) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - } - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); + let frames = + build_frame_input(&[b"\x0001234567", b"\x00890abcde", b"\x00fghijklm", b"\xFFno"]); - let defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); let frames: Vec = defragmentizer .map(|bytes_result| bytes_result.unwrap()) .collect() @@ -374,33 +364,10 @@ mod tests { #[test] fn defragmentizer_incomplete_frame() { let frame_data = b"01234567890abcdefghijklmno"; - let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); - fragments.push(b"\xFFno".as_slice().into()); - - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - // Send just 2 frames and prematurely close the stream. - sender - .send(Ok(fragments[0].clone())) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - sender - .send(Ok(fragments[1].clone())) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); + // Send an incomplete frame with no final fragment. + let frames = build_frame_input(&[b"\x0001234567", b"\x00890abcde"]); - let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); // Ensure we don't incorrectly yield a frame. assert_eq!( defragmentizer @@ -417,29 +384,10 @@ mod tests { fn defragmentizer_invalid_fragment_header() { let frame_data = b"01234567890abcdefghijklmno"; // Insert invalid header '0xAB' into the first fragment. - let mut fragments: Vec = [b"\xAB01234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); - fragments.push(b"\xFFno".as_slice().into()); - - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - for fragment in fragments { - sender - .send(Ok(fragment)) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - } - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); + let frames = + build_frame_input(&[b"\xAB01234567", b"\x00890abcde", b"\x00fghijklm", b"\xFFno"]); - let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); assert_eq!( defragmentizer .next() @@ -454,31 +402,16 @@ mod tests { #[test] fn defragmentizer_zero_length_non_final_fragment() { let frame_data = b"01234567890abcdefghijklmno"; - let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); // Insert an empty, non-final fragment with just the header. - fragments.push(b"\x00".as_slice().into()); - fragments.push(b"\xFFno".as_slice().into()); - - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - for fragment in fragments { - sender - .send(Ok(fragment)) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - } - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); - - let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let frames = build_frame_input(&[ + b"\x0001234567", + b"\x00890abcde", + b"\x00fghijklm", + b"\x00", + b"\xFFno", + ]); + + let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); assert_eq!( defragmentizer .next() @@ -493,32 +426,13 @@ mod tests { #[test] fn defragmentizer_zero_length_final_fragment() { let frame_data = b"01234567890abcdefghijklm"; - let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); // Insert an empty, final fragment with just the header. This should // succeed as the requirement to have non-empty fragments only applies // to non-final fragments. - fragments.push(b"\xFF".as_slice().into()); + let frames = + build_frame_input(&[b"\x0001234567", b"\x00890abcde", b"\x00fghijklm", b"\xFF"]); - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - for fragment in fragments { - sender - .send(Ok(fragment)) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - } - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); - - let defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); let frames: Vec = defragmentizer .map(|bytes_result| bytes_result.unwrap()) .collect() @@ -531,31 +445,16 @@ mod tests { #[test] fn defragmentizer_missing_fragment_header() { let frame_data = b"01234567890abcdefghijklmno"; - let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); // Insert an empty fragment, not even a header in it. - fragments.push(b"".as_slice().into()); - fragments.push(b"\xFFno".as_slice().into()); - - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - for fragment in fragments { - sender - .send(Ok(fragment)) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - } - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); - - let mut defragmentizer = Defragmentizer::new(frame_data.len(), receiver); + let frames = build_frame_input(&[ + b"\x0001234567", + b"\x00890abcde", + b"\x00fghijklm", + b"", + b"\xFFno", + ]); + + let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); assert_eq!( defragmentizer .next() @@ -570,31 +469,12 @@ mod tests { #[test] fn defragmentizer_max_frame_size_exceeded() { let frame_data = b"01234567890abcdefghijklmno"; - let mut fragments: Vec = [b"\x0001234567", b"\x00890abcde", b"\x00fghijklm"] - .into_iter() - .map(|bytes| bytes.as_slice().into()) - .collect(); - fragments.push(b"\xFFno".as_slice().into()); - - let (mut sender, receiver) = - mpsc::channel::>(CHANNEL_BUFFER_SIZE); - for fragment in fragments { - sender - .send(Ok(fragment)) - .now_or_never() - .expect("Couldn't send encoded frame") - .unwrap(); - } - sender - .flush() - .now_or_never() - .expect("Couldn't flush") - .unwrap(); - drop(sender); + let frames = + build_frame_input(&[b"\x0001234567", b"\x00890abcde", b"\x00fghijklm", b"\xFFno"]); // Initialize the defragmentizer with a max frame length lower than what // we're trying to send. - let mut defragmentizer = Defragmentizer::new(frame_data.len() - 1, receiver); + let mut defragmentizer = Defragmentizer::new(frame_data.len() - 1, stream::iter(frames)); // Ensure the data doesn't fit in the frame size limit. assert_eq!( defragmentizer From 15c5a6513e4f9e56eb983ded12e2675f6c2b8e24 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 7 Sep 2022 16:47:02 +0200 Subject: [PATCH 178/735] muxink: Add simple integration test for IO module basic usage --- Cargo.lock | 1 + muxink/Cargo.toml | 3 ++- muxink/src/io.rs | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 50 insertions(+), 1 deletion(-) diff --git a/Cargo.lock b/Cargo.lock index d0d77247a8..eede5c37ca 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4649,6 +4649,7 @@ checksum = "cc463cd8deddc3770d20f9852143d50bf6094e640b485cb2e189a2099085ff45" dependencies = [ "bytes", "futures-core", + "futures-io", "futures-sink", "pin-project-lite", "tokio", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 3fcafcaa79..7aa031a28b 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -10,9 +10,10 @@ bytes = "1.1.0" futures = "0.3.21" serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" -tokio = { version = "1", features = [ "full" ] } +tokio = { version = "1", features = [ "full" ] } # TODO: Reduce features. tokio-util = "0.7.2" casper-types = { path = "../types", optional = true } [dev-dependencies] tokio-stream = "0.1.8" +tokio-util = { version = "0.7.2", features = [ "compat" ] } diff --git a/muxink/src/io.rs b/muxink/src/io.rs index c69649e39b..4595852194 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -228,3 +228,50 @@ where wpin.poll_close(cx) } } + +#[cfg(test)] +mod tests { + use bytes::Bytes; + use futures::{sink::SinkExt, stream::StreamExt}; + + use super::{FrameReader, FrameWriter}; + use crate::framing::length_delimited::LengthDelimited; + use tokio_util::compat::TokioAsyncReadCompatExt; + + /// A basic integration test for sending data across an actual TCP stream. + #[tokio::test] + async fn simple_tcp_send_recv() { + let server = tokio::net::TcpListener::bind("127.0.0.1:0") + .await + .expect("could not bind"); + let server_addr = server.local_addr().expect("no local addr"); + let frame_to_send = b"asdf12345asdf"; + + let server_handle = tokio::spawn(async move { + let (incoming, _client_peer_addr) = server + .accept() + .await + .expect("could not accept connection on server side"); + + let mut frame_reader = FrameReader::new(LengthDelimited, incoming.compat(), 32); + let outcome = frame_reader + .next() + .await + .expect("closed unexpectedly") + .expect("receive failed"); + + assert_eq!(&outcome.to_vec(), frame_to_send); + }); + + let client = tokio::net::TcpStream::connect(server_addr) + .await + .expect("failed to connect"); + let mut frame_writer = FrameWriter::new(LengthDelimited, client.compat()); + frame_writer + .send(Bytes::from(&frame_to_send[..])) + .await + .expect("could not sendn data"); + + server_handle.await.expect("joining failed"); + } +} From 1ffba4d62c9983a23e648190cc6c6984cd9d2f6d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 7 Sep 2022 17:17:02 +0200 Subject: [PATCH 179/735] muxink: Fix bug in `FrameWriter` that caused all data to be read as zeros --- muxink/src/io.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 4595852194..e93788f6fb 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -114,7 +114,10 @@ where } } Poll::Ready(Err(err)) => return Poll::Ready(Some(Err(err))), - Poll::Pending => return Poll::Pending, + Poll::Pending => { + buffer.truncate(start); + return Poll::Pending; + } } } } From fef368a990c0f79a5bb277e046c228671080eb82 Mon Sep 17 00:00:00 2001 From: Samuel Schlesinger Date: Thu, 7 Jul 2022 18:17:43 -0400 Subject: [PATCH 180/735] Added a demultiplexer to muxink --- muxink/src/demux.rs | 256 ++++++++++++++++++++++++++++++++++++++++++++ muxink/src/lib.rs | 1 + 2 files changed, 257 insertions(+) create mode 100644 muxink/src/demux.rs diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs new file mode 100644 index 0000000000..c5ab284386 --- /dev/null +++ b/muxink/src/demux.rs @@ -0,0 +1,256 @@ +//! Stream demultiplexing +//! +//! Demultiplexes a Stream of Bytes into multiple channels. Up to 256 channels are supported, and +//! if messages are present on a channel but there isn't an associated DemultiplexerHandle for that +//! channel, then the Stream will never poll as Ready. + +use std::{ + pin::Pin, + sync::{Arc, Mutex}, + task::{Context, Poll}, +}; + +use bytes::Bytes; +use futures::{stream::Fuse, Stream, StreamExt}; + +/// A frame demultiplexer. +/// +/// A demultiplexer is not used directly, but used to spawn demultiplexing handles. +/// +/// TODO What if someone sends data to a channel for which there is no handle? +/// I can think of two reasonable responses: +/// 1. return an error to the handle which saw this message. +/// 2. drop all messages we receive which don't have a corresponding `DemultiplexerHandle` +/// yet. +/// 3. allow messages to sit forever and block the rest of the handles, preferring whoever +/// is sending us the messages to filter out ones which aren't for a channel we're +/// listening on. this is already what happens if a `DemultiplexerHandle` for any +/// channel which has messages in the stream doesn't ever take them out. +pub struct Demultiplexer { + stream: Fuse, + next_frame: Option<(u8, Bytes)>, +} + +impl Demultiplexer { + /// Creates a new demultiplexer with the given underlying stream. + pub fn new(stream: S) -> Demultiplexer { + Demultiplexer { + stream: stream.fuse(), + next_frame: None, + } + } +} + +impl Demultiplexer { + /// Creates a handle listening for frames on the given channel. + /// + /// Any item on this channel sent to the `Stream` underlying the `Demultiplexer` we used to + /// create this handle will be read only when all other messages for other channels have been + /// read first. If one has handles on the same channel created via the same underlying + /// `Demultiplexer`, each message on that channel will only be received by one of the handles. + /// Unless this is desired behavior, this should be avoided. + pub fn create_handle(demux: Arc>, channel: u8) -> DemultiplexerHandle { + DemultiplexerHandle { + channel, + demux: demux.clone(), + } + } +} + +/// A handle to a demultiplexer. +/// +/// A handle is bound to a specific channel, see [`Demultiplexer::create_handle`] for details. +pub struct DemultiplexerHandle { + /// Which channel this handle is listening on + channel: u8, + /// A reference to the underlying demultiplexer. + demux: Arc>>, // (probably?) make sure this is a stdmutex +} + +impl Stream for DemultiplexerHandle +where + S: Stream + Unpin, +{ + // TODO Result + type Item = Bytes; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + // Lock the demultiplexer + let mut demux = match self.demux.as_ref().try_lock() { + Err(_err) => panic!("TODO"), // TODO return Err("TODO") + Ok(guard) => guard, + }; + + // If next_frame has a suitable frame for this channel, return it in a Poll::Ready. If it has + // an unsuitable frame, return Poll::Pending. Otherwise, we attempt to read from the stream. + if let Some((ref channel, ref bytes)) = demux.next_frame { + if *channel == self.channel { + let bytes = bytes.clone(); + demux.next_frame = None; + return Poll::Ready(Some(bytes)); + } else { + return Poll::Pending; + } + } + + // Try to read from the stream, placing the frame into next_frame and returning + // Poll::Pending if its in the wrong channel, otherwise returning it in a Poll::Ready. + match demux.stream.poll_next_unpin(cx) { + Poll::Pending => Poll::Pending, + Poll::Ready(Some(bytes)) => { + let channel: u8 = *&bytes[0..1][0]; + let frame = bytes.slice(1..).clone(); + if channel == self.channel { + Poll::Ready(Some(frame)) + } else { + demux.next_frame = Some((channel, frame)); + Poll::Pending + } + } + Poll::Ready(None) => Poll::Ready(None), + } + + // TODO: figure out when we are being polled again, does it work correctly (see waker) or + // will it cause inefficient races? do we need to call wake? probably. (possibly + // necessary) can have table of wakers to only wake the right one. + } +} + +#[cfg(test)] +mod tests { + use std::marker::Unpin; + + use super::*; + use futures::{FutureExt, Stream, StreamExt}; + + // This stream is used because it is not safe to call it after it returns + // [`Poll::Ready(None)`], whereas many other streams are. The interface for + // streams says that in general it is not safe, so it is important to test + // using a stream which has this property as well. + struct TestStream { + // The items which will be returned by the stream in reverse order + items: Vec, + // Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] + finished: bool, + } + + impl TestStream { + fn new(mut items: Vec) -> Self { + // We reverse the items as we use the pop method to remove them one by one, + // thus they come out in the order specified by the `Vec`. + items.reverse(); + TestStream { + items, + finished: false, + } + } + } + + // We implement Unpin because of the constraint in the implementation of the + // `DemultiplexerHandle`. + impl Unpin for TestStream {} + + impl Stream for TestStream { + type Item = T; + + fn poll_next(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + // Panic if we've already emitted [`Poll::Ready(None)`] + if self.finished { + panic!("polled a TestStream after completion"); + } + if let Some(t) = self.items.pop() { + return Poll::Ready(Some(t)); + } else { + // Before we return None, make sure we set finished to true so that calling this + // again will result in a panic, as the specification for `Stream` tells us is + // possible with an arbitrary implementation. + self.finished = true; + return Poll::Ready(None); + } + } + } + + #[test] + fn demultiplexing_two_channels() { + // We demultiplex two channels, 0 and 1 + let items = vec![ + Bytes::copy_from_slice(&[0, 1, 2, 3, 4]), + Bytes::copy_from_slice(&[0, 4]), + Bytes::copy_from_slice(&[1, 2]), + Bytes::copy_from_slice(&[1, 5]), + ]; + let stream = TestStream::new(items); + let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); + + // We make two handles, one for the 0 channel and another for the 1 channel + let mut zero_handle = Demultiplexer::create_handle(demux.clone(), 0); + let mut one_handle = Demultiplexer::create_handle(demux.clone(), 1); + + // We know the order that these things have to be awaited, so we can make sure that exactly + // what we expects happens using the `now_or_never` function. + + // First, we expect the zero channel to have a frame. + assert_eq!( + zero_handle + .next() + .now_or_never() + .expect("not ready") + .expect("stream ended") + .as_ref(), + &[1, 2, 3, 4] + ); + + // Next, we expect that the one handle will not have a frame, but it will read off the + // frame ready for the zero value and put it in the next_frame slot. + assert!(one_handle.next().now_or_never().is_none()); + + // It should be safe to call this again, though this time it won't even check the stream + // and will simply notice that the next_frame slot is filled with a frame for a channel + // which isn't 1. + assert!(one_handle.next().now_or_never().is_none()); + + // Then, we receive the message from the zero handle which the one handle left for us. + assert_eq!( + zero_handle + .next() + .now_or_never() + .expect("not ready") + .expect("stream ended") + .as_ref(), + &[4] + ); + + // Then, we pull out the message for the one handle, which hasn't yet been put on the + // stream. + assert_eq!( + one_handle + .next() + .now_or_never() + .expect("not ready") + .expect("stream ended") + .as_ref(), + &[2] + ); + + // Now, we try to pull out a zero message again, filling the next_frame slot for the one + // handle. + assert!(zero_handle.next().now_or_never().is_none()); + + // We take off the final value from the next_frame slot + assert_eq!( + one_handle + .next() + .now_or_never() + .expect("not ready") + .expect("stream ended") + .as_ref(), + &[5] + ); + + // Now, we assert that its safe to call this again with both the one and zero handle, + // ensuring that the [`Fuse`] truly did fuse away the danger from our dangerous + // `TestStream`. + assert!(one_handle.next().now_or_never().unwrap().is_none()); + assert!(zero_handle.next().now_or_never().unwrap().is_none()); + } +} diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 7df7bf2c41..5465520c76 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -1,6 +1,7 @@ //! Asynchronous multiplexing pub mod backpressured; +pub mod demux; pub mod error; pub mod fragmented; pub mod framing; From 9eb8390f93387a3088c9854a0d93e035f513438b Mon Sep 17 00:00:00 2001 From: Samuel Schlesinger Date: Mon, 25 Jul 2022 09:43:08 -0400 Subject: [PATCH 181/735] Added a concept of active channels for demultiplexer --- muxink/src/demux.rs | 91 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 80 insertions(+), 11 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index c5ab284386..5edcbd3e10 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -16,32 +16,56 @@ use futures::{stream::Fuse, Stream, StreamExt}; /// A frame demultiplexer. /// /// A demultiplexer is not used directly, but used to spawn demultiplexing handles. -/// -/// TODO What if someone sends data to a channel for which there is no handle? -/// I can think of two reasonable responses: -/// 1. return an error to the handle which saw this message. -/// 2. drop all messages we receive which don't have a corresponding `DemultiplexerHandle` -/// yet. -/// 3. allow messages to sit forever and block the rest of the handles, preferring whoever -/// is sending us the messages to filter out ones which aren't for a channel we're -/// listening on. this is already what happens if a `DemultiplexerHandle` for any -/// channel which has messages in the stream doesn't ever take them out. pub struct Demultiplexer { + /// The underlying `Stream`, `Fuse`d in order to make it safe to be called once its output + /// `Poll::Ready(None)`. stream: Fuse, + /// Holds the frame and channel, if available, which has been read by a `DemultiplexerHandle` + /// corresponding to a different channel. next_frame: Option<(u8, Bytes)>, + /// A bit-field representing the channels which have had `DemultiplexerHandle`s constructed. + active_channels: [u8; 32], } impl Demultiplexer { /// Creates a new demultiplexer with the given underlying stream. pub fn new(stream: S) -> Demultiplexer { Demultiplexer { + // We fuse the stream in case its unsafe to call it after yielding `Poll::Ready(None)` stream: stream.fuse(), + // Initially, we have no next frame next_frame: None, + // Initially, all channels are inactive + active_channels: [0b00000000; 32], } } } +// Here, we write the logic for accessing and modifying the bit-field representing the active +// channels. impl Demultiplexer { + fn activate_channel(&mut self, channel: u8) { + self.active_channels[(channel / 8) as usize] |= + 2u8.checked_pow((channel % 8) as u32).unwrap(); + } + + fn deactivate_channel(&mut self, channel: u8) { + // TODO Single operation instead of two. + if self.channel_is_active(channel) { + self.active_channels[(channel / 8) as usize] ^= + 2u8.checked_pow((channel % 8) as u32).unwrap(); + } + } + + fn channel_is_active(&self, channel: u8) -> bool { + (self.active_channels[(channel / 8) as usize] + & 2u8.checked_pow((channel % 8) as u32).unwrap()) + .count_ones() + == 1 + } +} + +impl Demultiplexer { /// Creates a handle listening for frames on the given channel. /// /// Any item on this channel sent to the `Stream` underlying the `Demultiplexer` we used to @@ -50,6 +74,17 @@ impl Demultiplexer { /// `Demultiplexer`, each message on that channel will only be received by one of the handles. /// Unless this is desired behavior, this should be avoided. pub fn create_handle(demux: Arc>, channel: u8) -> DemultiplexerHandle { + let mut guard = match demux.as_ref().try_lock() { + Err(_err) => panic!("TODO"), + Ok(guard) => guard, + }; + + if guard.channel_is_active(channel) { + panic!("TODO") + } + + guard.activate_channel(channel); + DemultiplexerHandle { channel, demux: demux.clone(), @@ -64,7 +99,21 @@ pub struct DemultiplexerHandle { /// Which channel this handle is listening on channel: u8, /// A reference to the underlying demultiplexer. - demux: Arc>>, // (probably?) make sure this is a stdmutex + demux: Arc>>, +} + +impl Drop for DemultiplexerHandle { + fn drop(&mut self) { + let mut demux = match self.demux.as_ref().try_lock() { + Err(_err) => { + return; + } // TODO What do? Perhaps try_lock is wrong here, but still what about poisoning? Not doing anything seems like the + // only sane option + Ok(guard) => guard, + }; + + demux.deactivate_channel(self.channel); + } } impl Stream for DemultiplexerHandle @@ -170,6 +219,26 @@ mod tests { } } + #[test] + fn channel_activation() { + let items: Vec = vec![]; + let stream = TestStream::new(items); + let mut demux = Demultiplexer::new(stream); + + let examples: Vec = (0u8..255u8).collect(); + + for i in examples.iter().copied() { + assert!(!demux.channel_is_active(i)); + demux.activate_channel(i); + assert!(demux.channel_is_active(i)); + } + + for i in examples.iter().copied() { + demux.deactivate_channel(i); + assert!(!demux.channel_is_active(i)); + } + } + #[test] fn demultiplexing_two_channels() { // We demultiplex two channels, 0 and 1 From 8261f0b38cd2dd24c234f4ff94583e08418576da Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Wed, 7 Sep 2022 13:44:23 +0300 Subject: [PATCH 182/735] Refactor demultiplexer Signed-off-by: George Pisaltu --- muxink/src/demux.rs | 166 ++++++++++++++++++++++++-------------------- 1 file changed, 92 insertions(+), 74 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 5edcbd3e10..305d1e4cb4 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -5,13 +5,33 @@ //! channel, then the Stream will never poll as Ready. use std::{ + error::Error, pin::Pin, + result::Result, sync::{Arc, Mutex}, task::{Context, Poll}, }; -use bytes::Bytes; -use futures::{stream::Fuse, Stream, StreamExt}; +use bytes::{Buf, Bytes}; +use futures::{ready, stream::Fuse, Stream, StreamExt}; +use thiserror::Error as ThisError; + +const CHANNEL_BYTE_COUNT: usize = MAX_CHANNELS / CHANNELS_PER_BYTE; +const CHANNEL_BYTE_SHIFT: usize = 3; +const CHANNELS_PER_BYTE: usize = 8; +const MAX_CHANNELS: usize = 256; + +#[derive(Debug, ThisError)] +pub enum DemultiplexerError { + #[error("Channel {0} is already in use")] + ChannelUnavailable(u8), + #[error("Received a message of length 0")] + EmptyMessage, + #[error("Message on channel {0} has no frame")] + MissingFrame(u8), + #[error("Stream error: {0}")] + Stream(E), +} /// A frame demultiplexer. /// @@ -24,7 +44,7 @@ pub struct Demultiplexer { /// corresponding to a different channel. next_frame: Option<(u8, Bytes)>, /// A bit-field representing the channels which have had `DemultiplexerHandle`s constructed. - active_channels: [u8; 32], + active_channels: [u8; CHANNEL_BYTE_COUNT], } impl Demultiplexer { @@ -36,7 +56,7 @@ impl Demultiplexer { // Initially, we have no next frame next_frame: None, // Initially, all channels are inactive - active_channels: [0b00000000; 32], + active_channels: [0b00000000; CHANNEL_BYTE_COUNT], } } } @@ -45,50 +65,45 @@ impl Demultiplexer { // channels. impl Demultiplexer { fn activate_channel(&mut self, channel: u8) { - self.active_channels[(channel / 8) as usize] |= - 2u8.checked_pow((channel % 8) as u32).unwrap(); + self.active_channels[(channel >> CHANNEL_BYTE_SHIFT) as usize] |= + 1 << (channel & (CHANNELS_PER_BYTE as u8 - 1)); } fn deactivate_channel(&mut self, channel: u8) { - // TODO Single operation instead of two. - if self.channel_is_active(channel) { - self.active_channels[(channel / 8) as usize] ^= - 2u8.checked_pow((channel % 8) as u32).unwrap(); - } + self.active_channels[(channel >> CHANNEL_BYTE_SHIFT) as usize] &= + !(1 << (channel & (CHANNELS_PER_BYTE as u8 - 1))); } fn channel_is_active(&self, channel: u8) -> bool { - (self.active_channels[(channel / 8) as usize] - & 2u8.checked_pow((channel % 8) as u32).unwrap()) - .count_ones() - == 1 + (self.active_channels[(channel >> CHANNEL_BYTE_SHIFT) as usize] + & (1 << (channel & (CHANNELS_PER_BYTE as u8 - 1)))) + != 0 } } impl Demultiplexer { /// Creates a handle listening for frames on the given channel. /// - /// Any item on this channel sent to the `Stream` underlying the `Demultiplexer` we used to - /// create this handle will be read only when all other messages for other channels have been - /// read first. If one has handles on the same channel created via the same underlying - /// `Demultiplexer`, each message on that channel will only be received by one of the handles. - /// Unless this is desired behavior, this should be avoided. - pub fn create_handle(demux: Arc>, channel: u8) -> DemultiplexerHandle { - let mut guard = match demux.as_ref().try_lock() { - Err(_err) => panic!("TODO"), - Ok(guard) => guard, - }; - - if guard.channel_is_active(channel) { - panic!("TODO") + /// Items received through a given handle may be blocked if other handles on the same + /// Demultiplexer are not polled at the same time. If one has handles on the same + /// channel created via the same underlying `Demultiplexer`, each message on that channel + /// will only be received by one of the handles. + pub fn create_handle( + demux: Arc>, + channel: u8, + ) -> Result, DemultiplexerError> { + let mut demux_guard = demux.lock().expect("poisoned lock"); + + if demux_guard.channel_is_active(channel) { + return Err(DemultiplexerError::ChannelUnavailable(channel)); } - guard.activate_channel(channel); + demux_guard.activate_channel(channel); - DemultiplexerHandle { + Ok(DemultiplexerHandle { channel, demux: demux.clone(), - } + }) } } @@ -96,7 +111,7 @@ impl Demultiplexer { /// /// A handle is bound to a specific channel, see [`Demultiplexer::create_handle`] for details. pub struct DemultiplexerHandle { - /// Which channel this handle is listening on + /// Which channel this handle is listening on. channel: u8, /// A reference to the underlying demultiplexer. demux: Arc>>, @@ -104,70 +119,66 @@ pub struct DemultiplexerHandle { impl Drop for DemultiplexerHandle { fn drop(&mut self) { - let mut demux = match self.demux.as_ref().try_lock() { - Err(_err) => { - return; - } // TODO What do? Perhaps try_lock is wrong here, but still what about poisoning? Not doing anything seems like the - // only sane option - Ok(guard) => guard, - }; - - demux.deactivate_channel(self.channel); + self.demux + .lock() + .expect("poisoned lock") + .deactivate_channel(self.channel); } } -impl Stream for DemultiplexerHandle +impl Stream for DemultiplexerHandle where - S: Stream + Unpin, + S: Stream> + Unpin, + E: Error, { - // TODO Result - type Item = Bytes; + type Item = Result>; fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - // Lock the demultiplexer - let mut demux = match self.demux.as_ref().try_lock() { - Err(_err) => panic!("TODO"), // TODO return Err("TODO") - Ok(guard) => guard, - }; - - // If next_frame has a suitable frame for this channel, return it in a Poll::Ready. If it has - // an unsuitable frame, return Poll::Pending. Otherwise, we attempt to read from the stream. + // Lock the demultiplexer. + let mut demux = self.demux.lock().expect("poisoned lock"); + + // If next_frame has a suitable frame for this channel, return it in a `Poll::Ready`. If it + // has an unsuitable frame, return `Poll::Pending`. Otherwise, we attempt to read + // from the stream. if let Some((ref channel, ref bytes)) = demux.next_frame { if *channel == self.channel { let bytes = bytes.clone(); demux.next_frame = None; - return Poll::Ready(Some(bytes)); + return Poll::Ready(Some(Ok(bytes))); } else { return Poll::Pending; } } - // Try to read from the stream, placing the frame into next_frame and returning - // Poll::Pending if its in the wrong channel, otherwise returning it in a Poll::Ready. - match demux.stream.poll_next_unpin(cx) { - Poll::Pending => Poll::Pending, - Poll::Ready(Some(bytes)) => { - let channel: u8 = *&bytes[0..1][0]; - let frame = bytes.slice(1..).clone(); + // Try to read from the stream, placing the frame into `next_frame` and returning + // `Poll::Pending` if it's in the wrong channel, otherwise returning it in a `Poll::Ready`. + match ready!(demux.stream.poll_next_unpin(cx)) { + Some(Ok(mut bytes)) => { + if bytes.is_empty() { + return Poll::Ready(Some(Err(DemultiplexerError::EmptyMessage))); + } + + let channel = bytes.get_u8(); + if bytes.is_empty() { + return Poll::Ready(Some(Err(DemultiplexerError::MissingFrame(channel)))); + } + if channel == self.channel { - Poll::Ready(Some(frame)) + Poll::Ready(Some(Ok(bytes))) } else { - demux.next_frame = Some((channel, frame)); + demux.next_frame = Some((channel, bytes)); Poll::Pending } } - Poll::Ready(None) => Poll::Ready(None), + Some(Err(err)) => return Poll::Ready(Some(Err(DemultiplexerError::Stream(err)))), + None => Poll::Ready(None), } - - // TODO: figure out when we are being polled again, does it work correctly (see waker) or - // will it cause inefficient races? do we need to call wake? probably. (possibly - // necessary) can have table of wakers to only wake the right one. } } #[cfg(test)] mod tests { - use std::marker::Unpin; + use std::{io::Error as IoError, marker::Unpin}; use super::*; use futures::{FutureExt, Stream, StreamExt}; @@ -221,7 +232,7 @@ mod tests { #[test] fn channel_activation() { - let items: Vec = vec![]; + let items: Vec>> = vec![]; let stream = TestStream::new(items); let mut demux = Demultiplexer::new(stream); @@ -242,18 +253,21 @@ mod tests { #[test] fn demultiplexing_two_channels() { // We demultiplex two channels, 0 and 1 - let items = vec![ + let items: Vec>> = [ Bytes::copy_from_slice(&[0, 1, 2, 3, 4]), Bytes::copy_from_slice(&[0, 4]), Bytes::copy_from_slice(&[1, 2]), Bytes::copy_from_slice(&[1, 5]), - ]; + ] + .into_iter() + .map(Result::Ok) + .collect(); let stream = TestStream::new(items); let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); // We make two handles, one for the 0 channel and another for the 1 channel - let mut zero_handle = Demultiplexer::create_handle(demux.clone(), 0); - let mut one_handle = Demultiplexer::create_handle(demux.clone(), 1); + let mut zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); + let mut one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); // We know the order that these things have to be awaited, so we can make sure that exactly // what we expects happens using the `now_or_never` function. @@ -265,6 +279,7 @@ mod tests { .now_or_never() .expect("not ready") .expect("stream ended") + .expect("item is error") .as_ref(), &[1, 2, 3, 4] ); @@ -285,6 +300,7 @@ mod tests { .now_or_never() .expect("not ready") .expect("stream ended") + .expect("item is error") .as_ref(), &[4] ); @@ -297,6 +313,7 @@ mod tests { .now_or_never() .expect("not ready") .expect("stream ended") + .expect("item is error") .as_ref(), &[2] ); @@ -312,6 +329,7 @@ mod tests { .now_or_never() .expect("not ready") .expect("stream ended") + .expect("item is error") .as_ref(), &[5] ); From 9cd66d6c8d1c68f75ab77d748a38a2ac351fdec7 Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Wed, 7 Sep 2022 18:40:39 +0300 Subject: [PATCH 183/735] Add waker support in demultiplexer Signed-off-by: George Pisaltu --- muxink/src/demux.rs | 200 ++++++++++++++++++++++++++++++++++++++------ 1 file changed, 173 insertions(+), 27 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 305d1e4cb4..5ec1b5e0ab 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -9,11 +9,11 @@ use std::{ pin::Pin, result::Result, sync::{Arc, Mutex}, - task::{Context, Poll}, + task::{Context, Poll, Waker}, }; use bytes::{Buf, Bytes}; -use futures::{ready, stream::Fuse, Stream, StreamExt}; +use futures::{ready, Stream, StreamExt}; use thiserror::Error as ThisError; const CHANNEL_BYTE_COUNT: usize = MAX_CHANNELS / CHANNELS_PER_BYTE; @@ -23,6 +23,8 @@ const MAX_CHANNELS: usize = 256; #[derive(Debug, ThisError)] pub enum DemultiplexerError { + #[error("Received message on channel {0} but no handle is listening")] + ChannelNotActive(u8), #[error("Channel {0} is already in use")] ChannelUnavailable(u8), #[error("Received a message of length 0")] @@ -37,26 +39,34 @@ pub enum DemultiplexerError { /// /// A demultiplexer is not used directly, but used to spawn demultiplexing handles. pub struct Demultiplexer { - /// The underlying `Stream`, `Fuse`d in order to make it safe to be called once its output - /// `Poll::Ready(None)`. - stream: Fuse, + /// The underlying `Stream`. + stream: S, + /// Flag which indicates whether the underlying stream has finished, whether with an error or + /// with a regular EOF. Placeholder for a `Fuse` so that polling after an error or EOF is safe. + is_finished: bool, /// Holds the frame and channel, if available, which has been read by a `DemultiplexerHandle` /// corresponding to a different channel. next_frame: Option<(u8, Bytes)>, /// A bit-field representing the channels which have had `DemultiplexerHandle`s constructed. active_channels: [u8; CHANNEL_BYTE_COUNT], + /// An array of `Waker`s for each channel. + wakers: [Option; MAX_CHANNELS], } impl Demultiplexer { /// Creates a new demultiplexer with the given underlying stream. pub fn new(stream: S) -> Demultiplexer { + const WAKERS_INIT: Option = None; Demultiplexer { // We fuse the stream in case its unsafe to call it after yielding `Poll::Ready(None)` - stream: stream.fuse(), + stream: stream, + is_finished: false, // Initially, we have no next frame next_frame: None, // Initially, all channels are inactive active_channels: [0b00000000; CHANNEL_BYTE_COUNT], + // Wakers list, one for each channel + wakers: [WAKERS_INIT; MAX_CHANNELS], } } } @@ -79,15 +89,35 @@ impl Demultiplexer { & (1 << (channel & (CHANNELS_PER_BYTE as u8 - 1)))) != 0 } + + fn wake_pending_channels(&mut self) { + for maybe_waker in self.wakers.iter_mut() { + if let Some(waker) = maybe_waker.take() { + waker.wake(); + } + } + } + + fn on_stream_close(&mut self) { + self.is_finished = true; + self.wake_pending_channels(); + } } impl Demultiplexer { /// Creates a handle listening for frames on the given channel. /// /// Items received through a given handle may be blocked if other handles on the same - /// Demultiplexer are not polled at the same time. If one has handles on the same - /// channel created via the same underlying `Demultiplexer`, each message on that channel - /// will only be received by one of the handles. + /// Demultiplexer are not polled at the same time. Duplicate handles on the same channel + /// are not allowed. + /// + /// Notice: Once a handle was created, it must be constantly polled for the next item + /// until the end of the stream, after which it should be dropped. If a channel yields + /// a `Poll::Ready` and it is not polled further, the other channels will stall as they + /// will never receive a wake. Also, once the end of the stream has been detected on a + /// channel, it will notify all other pending channels through wakes, but in order for + /// this to happen the user must either keep calling `handle.next().await` or finally + /// drop the handle. pub fn create_handle( demux: Arc>, channel: u8, @@ -119,10 +149,10 @@ pub struct DemultiplexerHandle { impl Drop for DemultiplexerHandle { fn drop(&mut self) { - self.demux - .lock() - .expect("poisoned lock") - .deactivate_channel(self.channel); + let mut demux = self.demux.lock().expect("poisoned lock"); + demux.wakers[self.channel as usize] = None; + demux.wake_pending_channels(); + demux.deactivate_channel(self.channel); } } @@ -136,22 +166,37 @@ where fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { // Lock the demultiplexer. let mut demux = self.demux.lock().expect("poisoned lock"); + // Unchecked access is safe because the `Vec` was preallocated with necessary elements. + demux.wakers[self.channel as usize] = None; // If next_frame has a suitable frame for this channel, return it in a `Poll::Ready`. If it // has an unsuitable frame, return `Poll::Pending`. Otherwise, we attempt to read // from the stream. - if let Some((ref channel, ref bytes)) = demux.next_frame { - if *channel == self.channel { + if let Some((channel, ref bytes)) = demux.next_frame { + if channel == self.channel { let bytes = bytes.clone(); demux.next_frame = None; return Poll::Ready(Some(Ok(bytes))); } else { + // Wake the channel this frame is for while also deregistering its + // waker from the list. + if let Some(waker) = demux.wakers[channel as usize].take() { + waker.wake() + } + // Before returning `Poll::Pending`, register this channel's waker + // so that other channels can wake it up when it receives a frame. + demux.wakers[self.channel as usize] = Some(cx.waker().clone()); return Poll::Pending; } } + if demux.is_finished { + return Poll::Ready(None); + } + // Try to read from the stream, placing the frame into `next_frame` and returning - // `Poll::Pending` if it's in the wrong channel, otherwise returning it in a `Poll::Ready`. + // `Poll::Pending` if it's in the wrong channel, otherwise returning it in a + // `Poll::Ready`. match ready!(demux.stream.poll_next_unpin(cx)) { Some(Ok(mut bytes)) => { if bytes.is_empty() { @@ -165,42 +210,69 @@ where if channel == self.channel { Poll::Ready(Some(Ok(bytes))) - } else { + } else if demux.channel_is_active(channel) { demux.next_frame = Some((channel, bytes)); + // Wake the channel this frame is for while also deregistering its + // waker from the list. + if let Some(waker) = demux.wakers[channel as usize].take() { + waker.wake(); + } + // Before returning `Poll::Pending`, register this channel's waker + // so that other channels can wake it up when it receives a frame. + demux.wakers[self.channel as usize] = Some(cx.waker().clone()); Poll::Pending + } else { + Poll::Ready(Some(Err(DemultiplexerError::ChannelNotActive(channel)))) } } - Some(Err(err)) => return Poll::Ready(Some(Err(DemultiplexerError::Stream(err)))), - None => Poll::Ready(None), + Some(Err(err)) => { + // Mark the stream as closed when receiving an error from the + // underlying stream. + demux.on_stream_close(); + Poll::Ready(Some(Err(DemultiplexerError::Stream(err)))) + } + None => { + demux.on_stream_close(); + Poll::Ready(None) + } } } } #[cfg(test)] mod tests { - use std::{io::Error as IoError, marker::Unpin}; + use std::{collections::VecDeque, io::Error as IoError, marker::Unpin}; use super::*; + use bytes::BytesMut; use futures::{FutureExt, Stream, StreamExt}; + impl PartialEq for DemultiplexerError { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (Self::ChannelNotActive(l0), Self::ChannelNotActive(r0)) => l0 == r0, + (Self::ChannelUnavailable(l0), Self::ChannelUnavailable(r0)) => l0 == r0, + (Self::MissingFrame(l0), Self::MissingFrame(r0)) => l0 == r0, + _ => core::mem::discriminant(self) == core::mem::discriminant(other), + } + } + } + // This stream is used because it is not safe to call it after it returns // [`Poll::Ready(None)`], whereas many other streams are. The interface for // streams says that in general it is not safe, so it is important to test // using a stream which has this property as well. struct TestStream { // The items which will be returned by the stream in reverse order - items: Vec, + items: VecDeque, // Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] finished: bool, } impl TestStream { - fn new(mut items: Vec) -> Self { - // We reverse the items as we use the pop method to remove them one by one, - // thus they come out in the order specified by the `Vec`. - items.reverse(); + fn new(items: Vec) -> Self { TestStream { - items, + items: items.into(), finished: false, } } @@ -218,7 +290,7 @@ mod tests { if self.finished { panic!("polled a TestStream after completion"); } - if let Some(t) = self.items.pop() { + if let Some(t) = self.items.pop_front() { return Poll::Ready(Some(t)); } else { // Before we return None, make sure we set finished to true so that calling this @@ -340,4 +412,78 @@ mod tests { assert!(one_handle.next().now_or_never().unwrap().is_none()); assert!(zero_handle.next().now_or_never().unwrap().is_none()); } + + #[test] + fn single_handle_per_channel() { + let stream: TestStream<()> = TestStream::new(Vec::new()); + let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); + + // Creating a handle for a channel works. + let _handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); + match Demultiplexer::create_handle::(demux.clone(), 0) { + Err(DemultiplexerError::ChannelUnavailable(0)) => {} + _ => panic!("Channel 0 was available even though we already have a handle to it"), + } + assert!(Demultiplexer::create_handle::(demux.clone(), 1).is_ok()); + } + + #[tokio::test] + async fn concurrent_channels_on_different_tasks() { + let items: Vec>> = [ + Bytes::copy_from_slice(&[0, 1, 2, 3, 4]), + Bytes::copy_from_slice(&[0, 5, 6]), + Bytes::copy_from_slice(&[1, 101, 102]), + Bytes::copy_from_slice(&[1, 103, 104]), + Bytes::copy_from_slice(&[2, 201, 202]), + Bytes::copy_from_slice(&[0, 7]), + Bytes::copy_from_slice(&[2, 203, 204]), + Bytes::copy_from_slice(&[1, 105]), + ] + .into_iter() + .map(Result::Ok) + .collect(); + let stream = TestStream::new(items); + let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); + + let handle_0 = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); + let handle_1 = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); + let handle_2 = Demultiplexer::create_handle::(demux.clone(), 2).unwrap(); + + let channel_0_bytes = tokio::spawn(async { + let mut acc = BytesMut::new(); + handle_0 + .for_each(|bytes| { + acc.extend(bytes.unwrap()); + futures::future::ready(()) + }) + .await; + acc.freeze() + }); + let channel_1_bytes = tokio::spawn(async { + let mut acc = BytesMut::new(); + handle_1 + .for_each(|bytes| { + acc.extend(bytes.unwrap()); + futures::future::ready(()) + }) + .await; + acc.freeze() + }); + let channel_2_bytes = tokio::spawn(async { + let mut acc = BytesMut::new(); + handle_2 + .for_each(|bytes| { + acc.extend(bytes.unwrap()); + futures::future::ready(()) + }) + .await; + acc.freeze() + }); + + let (result1, result2, result3) = + tokio::join!(channel_0_bytes, channel_1_bytes, channel_2_bytes,); + assert_eq!(result1.unwrap(), &[1, 2, 3, 4, 5, 6, 7][..]); + assert_eq!(result2.unwrap(), &[101, 102, 103, 104, 105][..]); + assert_eq!(result3.unwrap(), &[201, 202, 203, 204][..]); + } } From ddeac1f68b0b6924c6b1639c37c11a38c81dfe2d Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Fri, 9 Sep 2022 15:24:40 +0300 Subject: [PATCH 184/735] Move `TestStream` to test utils in muxink Signed-off-by: George Pisaltu --- muxink/src/demux.rs | 50 ++++----------------------------------- muxink/src/testing.rs | 54 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 57 insertions(+), 47 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 5ec1b5e0ab..c6a3fdb779 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -241,11 +241,13 @@ where #[cfg(test)] mod tests { - use std::{collections::VecDeque, io::Error as IoError, marker::Unpin}; + use std::io::Error as IoError; + + use crate::testing::TestStream; use super::*; use bytes::BytesMut; - use futures::{FutureExt, Stream, StreamExt}; + use futures::{FutureExt, StreamExt}; impl PartialEq for DemultiplexerError { fn eq(&self, other: &Self) -> bool { @@ -258,50 +260,6 @@ mod tests { } } - // This stream is used because it is not safe to call it after it returns - // [`Poll::Ready(None)`], whereas many other streams are. The interface for - // streams says that in general it is not safe, so it is important to test - // using a stream which has this property as well. - struct TestStream { - // The items which will be returned by the stream in reverse order - items: VecDeque, - // Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] - finished: bool, - } - - impl TestStream { - fn new(items: Vec) -> Self { - TestStream { - items: items.into(), - finished: false, - } - } - } - - // We implement Unpin because of the constraint in the implementation of the - // `DemultiplexerHandle`. - impl Unpin for TestStream {} - - impl Stream for TestStream { - type Item = T; - - fn poll_next(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { - // Panic if we've already emitted [`Poll::Ready(None)`] - if self.finished { - panic!("polled a TestStream after completion"); - } - if let Some(t) = self.items.pop_front() { - return Poll::Ready(Some(t)); - } else { - // Before we return None, make sure we set finished to true so that calling this - // again will result in a panic, as the specification for `Stream` tells us is - // possible with an arbitrary implementation. - self.finished = true; - return Poll::Ready(None); - } - } - } - #[test] fn channel_activation() { let items: Vec>> = vec![]; diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 8dbf704ed2..666d09f607 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -3,7 +3,15 @@ pub mod pipe; pub mod testing_sink; -use std::{fmt::Debug, io::Read}; +use std::{ + collections::VecDeque, + fmt::Debug, + io::Read, + marker::Unpin, + pin::Pin, + result::Result, + task::{Context, Poll}, +}; use bytes::Buf; use futures::{FutureExt, Stream, StreamExt}; @@ -48,3 +56,47 @@ where .collect::>() .expect("error in stream results") } + +// This stream is used because it is not safe to call it after it returns +// [`Poll::Ready(None)`], whereas many other streams are. The interface for +// streams says that in general it is not safe, so it is important to test +// using a stream which has this property as well. +pub(crate) struct TestStream { + // The items which will be returned by the stream in reverse order + items: VecDeque, + // Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] + finished: bool, +} + +impl TestStream { + pub(crate) fn new(items: Vec) -> Self { + TestStream { + items: items.into(), + finished: false, + } + } +} + +// We implement Unpin because of the constraint in the implementation of the +// `DemultiplexerHandle`. +impl Unpin for TestStream {} + +impl Stream for TestStream { + type Item = T; + + fn poll_next(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + // Panic if we've already emitted [`Poll::Ready(None)`] + if self.finished { + panic!("polled a TestStream after completion"); + } + if let Some(t) = self.items.pop_front() { + return Poll::Ready(Some(t)); + } else { + // Before we return None, make sure we set finished to true so that calling this + // again will result in a panic, as the specification for `Stream` tells us is + // possible with an arbitrary implementation. + self.finished = true; + return Poll::Ready(None); + } + } +} From 42afd4889cabf7b656adb4e5e1b826de10095b1a Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Fri, 9 Sep 2022 13:05:34 +0300 Subject: [PATCH 185/735] Add tests for muxink frame reader/writer Signed-off-by: George Pisaltu --- muxink/src/io.rs | 205 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 203 insertions(+), 2 deletions(-) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index e93788f6fb..6ba6503790 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -234,12 +234,52 @@ where #[cfg(test)] mod tests { + use std::{mem, pin::Pin}; + use bytes::Bytes; - use futures::{sink::SinkExt, stream::StreamExt}; + use futures::{ + io::Cursor, sink::SinkExt, stream::StreamExt, AsyncRead, AsyncReadExt, AsyncWriteExt, + FutureExt, + }; + use tokio::io::DuplexStream; + use tokio_util::compat::{Compat, TokioAsyncReadCompatExt}; use super::{FrameReader, FrameWriter}; use crate::framing::length_delimited::LengthDelimited; - use tokio_util::compat::TokioAsyncReadCompatExt; + + /// Async reader used by a test below to gather all underlying + /// read calls and their results. + struct AsyncReadCounter { + stream: S, + reads: Vec, + } + + impl AsyncReadCounter { + pub fn new(stream: S) -> Self { + Self { + stream, + reads: vec![], + } + } + + pub fn reads(&self) -> &[usize] { + &self.reads + } + } + + impl AsyncRead for AsyncReadCounter { + fn poll_read( + mut self: std::pin::Pin<&mut Self>, + cx: &mut std::task::Context<'_>, + buf: &mut [u8], + ) -> std::task::Poll> { + let read_result = Pin::new(&mut self.stream).poll_read(cx, buf); + if let std::task::Poll::Ready(Ok(len)) = read_result { + self.reads.push(len); + } + read_result + } + } /// A basic integration test for sending data across an actual TCP stream. #[tokio::test] @@ -277,4 +317,165 @@ mod tests { server_handle.await.expect("joining failed"); } + + #[test] + fn frame_reader_reads_without_consuming_extra_bytes() { + const FRAME: &[u8; 16] = b"abcdef0123456789"; + const COPIED_FRAME_LEN: u16 = 8; + let mut encoded_longer_frame = COPIED_FRAME_LEN.to_le_bytes().to_vec(); + encoded_longer_frame.extend_from_slice(FRAME.as_slice()); + + let cursor = Cursor::new(encoded_longer_frame.as_slice()); + let mut reader = FrameReader::new(LengthDelimited, cursor, 1000); + + let first_frame = reader.next().now_or_never().unwrap().unwrap().unwrap(); + assert_eq!(&first_frame, &FRAME[..COPIED_FRAME_LEN as usize]); + + let (_, mut cursor, mut buffer) = reader.into_parts(); + let mut unread_cursor_buf = vec![]; + let unread_cursor_len = cursor + .read_to_end(&mut unread_cursor_buf) + .now_or_never() + .unwrap() + .unwrap(); + buffer.extend_from_slice(&unread_cursor_buf[..unread_cursor_len]); + assert_eq!(&buffer, &FRAME[COPIED_FRAME_LEN as usize..]); + } + + #[test] + fn frame_reader_does_not_allow_exceeding_maximum_size() { + const FRAME: &[u8; 16] = b"abcdef0123456789"; + const COPIED_FRAME_LEN: u16 = 16; + const MAX_READ_BUF_INCREMENT: usize = 5; + let mut encoded_longer_frame = COPIED_FRAME_LEN.to_le_bytes().to_vec(); + encoded_longer_frame.extend_from_slice(FRAME.as_slice()); + + let cursor = AsyncReadCounter::new(Cursor::new(encoded_longer_frame.as_slice())); + let mut reader = FrameReader::new(LengthDelimited, cursor, MAX_READ_BUF_INCREMENT); + + let first_frame = reader.next().now_or_never().unwrap().unwrap().unwrap(); + assert_eq!(&first_frame, &FRAME[..COPIED_FRAME_LEN as usize]); + + let (_, counter, _) = reader.into_parts(); + // Considering we have a `max_read_buffer_increment` of 5, the encoded length + // is a `u16`, `sizeof(u16)` is 2, and the length of the original frame is 16, + // reads should be: + // [2 + (5 - 2), 5, 5, 5 - 2] + assert_eq!( + counter.reads(), + [ + MAX_READ_BUF_INCREMENT, + MAX_READ_BUF_INCREMENT, + MAX_READ_BUF_INCREMENT, + MAX_READ_BUF_INCREMENT - mem::size_of::() + ] + ); + } + + #[tokio::test] + async fn frame_reader_handles_0_sized_read() { + const FRAME: &[u8; 16] = b"abcdef0123456789"; + const COPIED_FRAME_LEN: u16 = 16; + const MAX_READ_BUF_INCREMENT: usize = 6; + let mut encoded_longer_frame = COPIED_FRAME_LEN.to_le_bytes().to_vec(); + encoded_longer_frame.extend_from_slice(FRAME.as_slice()); + + let (sender, receiver) = tokio::io::duplex(1000); + let mut reader = FrameReader::new( + LengthDelimited, + receiver.compat(), + (COPIED_FRAME_LEN >> 1).into(), + ); + + // We drop the sender at the end of the async block in order to simulate + // a 0-sized read. + let send_fut = async move { + sender + .compat() + .write_all(&encoded_longer_frame[..MAX_READ_BUF_INCREMENT]) + .await + .unwrap(); + }; + let recv_fut = async { reader.next().await }; + let (_, received) = tokio::join!(send_fut, recv_fut); + assert!(received.is_none()); + } + + #[tokio::test] + async fn frame_reader_handles_early_eof() { + const FRAME: &[u8; 16] = b"abcdef0123456789"; + const COPIED_FRAME_LEN: u16 = 16; + let mut encoded_longer_frame = (COPIED_FRAME_LEN + 1).to_le_bytes().to_vec(); + encoded_longer_frame.extend_from_slice(FRAME.as_slice()); + + let cursor = Cursor::new(encoded_longer_frame.as_slice()); + let mut reader = FrameReader::new(LengthDelimited, cursor, 1000); + + assert!(reader.next().await.is_none()); + } + + #[test] + fn frame_writer_writes_frames_correctly() { + const FIRST_FRAME: &[u8; 16] = b"abcdef0123456789"; + const SECOND_FRAME: &[u8; 9] = b"dead_beef"; + + let mut frame_writer: FrameWriter> = + FrameWriter::new(LengthDelimited, Vec::new()); + frame_writer + .send((&FIRST_FRAME[..]).into()) + .now_or_never() + .unwrap() + .unwrap(); + let FrameWriter { + encoder: _, + stream, + current_frame: _, + } = &frame_writer; + let mut encoded_longer_frame = (FIRST_FRAME.len() as u16).to_le_bytes().to_vec(); + encoded_longer_frame.extend_from_slice(FIRST_FRAME.as_slice()); + assert_eq!(stream.as_slice(), encoded_longer_frame); + + frame_writer + .send((&SECOND_FRAME[..]).into()) + .now_or_never() + .unwrap() + .unwrap(); + let FrameWriter { + encoder: _, + stream, + current_frame: _, + } = &frame_writer; + encoded_longer_frame + .extend_from_slice((SECOND_FRAME.len() as u16).to_le_bytes().as_slice()); + encoded_longer_frame.extend_from_slice(SECOND_FRAME.as_slice()); + assert_eq!(stream.as_slice(), encoded_longer_frame); + } + + #[tokio::test] + async fn frame_writer_handles_0_size() { + const FRAME: &[u8; 16] = b"abcdef0123456789"; + + let (sender, receiver) = tokio::io::duplex(1000); + let mut frame_writer: FrameWriter> = + FrameWriter::new(LengthDelimited, sender.compat()); + // Send a first frame. + frame_writer.send((&FRAME[..]).into()).await.unwrap(); + + // Send an empty frame. + // We drop the sender at the end of the async block to mark the end of + // the stream. + let send_fut = async move { frame_writer.send(Bytes::new()).await.unwrap() }; + + let recv_fut = async { + let mut buf = Vec::new(); + receiver.compat().read_to_end(&mut buf).await.unwrap(); + buf + }; + + let (_, received) = tokio::join!(send_fut, recv_fut); + assert_eq!( + &received[FRAME.len() + mem::size_of::()..], + 0u16.to_le_bytes() + ); + } } From bc47f388d684374c6a6e7f8b9ea9bafbf9887c58 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Sep 2022 16:36:02 +0200 Subject: [PATCH 186/735] muxink: Add `Debug` to `Multiplexer` --- muxink/src/mux.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/muxink/src/mux.rs b/muxink/src/mux.rs index a34a93abf6..100ed3f38a 100644 --- a/muxink/src/mux.rs +++ b/muxink/src/mux.rs @@ -38,6 +38,7 @@ pub type ChannelPrefixedFrame = bytes::buf::Chain, F> /// A frame multiplexer. /// /// A multiplexer is not used directly, but used to spawn multiplexing handles. +#[derive(Debug)] pub struct Multiplexer { /// The shared sink for output. sink: Arc>>, From f8bb7c8d0a1c26cbb33f85473ba40eb7d4d32ee7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Sep 2022 16:56:45 +0200 Subject: [PATCH 187/735] muxink: Remove unnecessary `S: Stream` trait bound on `Demultiplexer::create_handle` --- muxink/src/demux.rs | 2 -- 1 file changed, 2 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index c6a3fdb779..c77fc80155 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -102,9 +102,7 @@ impl Demultiplexer { self.is_finished = true; self.wake_pending_channels(); } -} -impl Demultiplexer { /// Creates a handle listening for frames on the given channel. /// /// Items received through a given handle may be blocked if other handles on the same From 92dc05ceba7653cca2937e22e59d6d856d224216 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Sep 2022 17:23:21 +0200 Subject: [PATCH 188/735] muxink: Move `Demultiplexer::create_handle`'s trait bounds to `where`-clause --- muxink/src/demux.rs | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index c77fc80155..d4bb035ffc 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -116,10 +116,13 @@ impl Demultiplexer { /// channel, it will notify all other pending channels through wakes, but in order for /// this to happen the user must either keep calling `handle.next().await` or finally /// drop the handle. - pub fn create_handle( + pub fn create_handle( demux: Arc>, channel: u8, - ) -> Result, DemultiplexerError> { + ) -> Result, DemultiplexerError> + where + E: Error, + { let mut demux_guard = demux.lock().expect("poisoned lock"); if demux_guard.channel_is_active(channel) { From 11f3b787039e6c6c69729358512727358f153eb5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 19 Sep 2022 15:50:55 +0200 Subject: [PATCH 189/735] muxink: Improve documentation on `backpressured` --- muxink/src/backpressured.rs | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 3ac7aa3b07..760a17ae0d 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -8,7 +8,7 @@ //! more data locally or pause sending. //! //! The issue with this type of implementation is that if multiple channels (see [`crate::mux`]) are -//! used across a shared TCP connection, a single blocking channel will block all the other channel +//! used across a shared TCP connection, a single blocking channel will block all the other channels //! (see [Head-of-line blocking](https://en.wikipedia.org/wiki/Head-of-line_blocking)). Furthermore, //! deadlocks can occur if the data sent is a request which requires a response - should two peers //! make requests of each other at the same and end up backpressured, they may end up simultaneously @@ -33,13 +33,14 @@ use crate::error::Error; /// and expect an appropriate amount of ACKs to flow back through it. /// /// In other words, the `BackpressuredSink` will send `window_size` items at most to the sink -/// without expecting to have received one or more ACK through the `ack_stream`. +/// without having received one or more ACKs through the `ack_stream`. /// /// The ACKs sent back must be `u64`s, the sink will expect to receive at most one ACK per item /// sent. The first sent item is expected to receive an ACK of `1u64`, the second `2u64` and so on. /// -/// ACKs may not be sent out of order, but may be combined - an ACK of `n` implicitly indicates ACKs -/// for all previously unsent ACKs less than `n`. +/// ACKs are not acknowledgments for a specific item being processed but indicate the total number +/// of processed items instead, thus they are unordered. They may be combined, an ACK of `n` implies +/// all missing ACKs `< n`. pub struct BackpressuredSink { /// The inner sink that items will be forwarded to. inner: S, From ed0b43000e18bc25105fd8ba5ac3e8d18b919492 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 19 Sep 2022 16:02:34 +0200 Subject: [PATCH 190/735] muxink: Use `try_ready!` and factor out ACK validation --- muxink/src/backpressured.rs | 40 ++++++++++++++++++++++++------------- 1 file changed, 26 insertions(+), 14 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 760a17ae0d..570c1e1c06 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -25,7 +25,7 @@ use std::{ use futures::{Sink, SinkExt, Stream, StreamExt}; -use crate::error::Error; +use crate::{error::Error, try_ready}; /// A back-pressuring sink. /// @@ -77,6 +77,30 @@ impl BackpressuredSink { pub fn into_inner(self) -> (S, A) { (self.inner, self.ack_stream) } + + /// Validates a received ack. + /// + /// Returns an error if the `ACK` was a duplicate or from the future. + fn validate_ack(&mut self, ack_received: u64) -> Result<(), Error> + where + E: std::error::Error, + { + if ack_received > self.last_request { + return Err(Error::UnexpectedAck { + actual: ack_received, + items_sent: self.last_request, + }); + } + + if ack_received <= self.received_ack { + return Err(Error::DuplicateAck { + ack_received, + highest: self.received_ack, + }); + } + + Ok(()) + } } impl Sink for BackpressuredSink @@ -101,19 +125,7 @@ where loop { match self_mut.ack_stream.poll_next_unpin(cx) { Poll::Ready(Some(ack_received)) => { - if ack_received > self_mut.last_request { - return Poll::Ready(Err(Error::UnexpectedAck { - actual: ack_received, - items_sent: self_mut.last_request, - })); - } - - if ack_received <= self_mut.received_ack { - return Poll::Ready(Err(Error::DuplicateAck { - ack_received, - highest: self_mut.received_ack, - })); - } + try_ready!(self_mut.validate_ack(self_mut.received_ack)); self_mut.received_ack = ack_received; } From e6d497047457f251f854035843bf208f48e525c3 Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Wed, 14 Sep 2022 15:21:23 +0300 Subject: [PATCH 191/735] Add tests for backpressured sink Signed-off-by: George Pisaltu --- muxink/src/backpressured.rs | 54 ++++++++++++++++++++++++++++++++++--- 1 file changed, 51 insertions(+), 3 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 570c1e1c06..95c10fc6aa 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -125,7 +125,8 @@ where loop { match self_mut.ack_stream.poll_next_unpin(cx) { Poll::Ready(Some(ack_received)) => { - try_ready!(self_mut.validate_ack(self_mut.received_ack)); + try_ready!(self_mut.validate_ack(ack_received)); + // validate_ack!(self_mut, ack_received); self_mut.received_ack = ack_received; } @@ -195,9 +196,12 @@ where #[cfg(test)] mod tests { - use futures::{FutureExt, SinkExt}; + use std::convert::TryInto; + + use futures::{FutureExt, SinkExt, StreamExt}; use tokio::sync::mpsc::UnboundedSender; - use tokio_stream::wrappers::UnboundedReceiverStream; + use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; + use tokio_util::sync::PollSender; use crate::error::Error; @@ -306,4 +310,48 @@ mod tests { })) )); } + + #[tokio::test] + async fn backpressured_sink_concurrent_tasks() { + let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + let (sink, receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); + let ack_stream = UnboundedReceiverStream::new(ack_receiver); + let mut sink = BackpressuredSink::new(PollSender::new(sink), ack_stream, WINDOW_SIZE); + + let send_fut = tokio::spawn(async move { + for item in to_send.iter() { + // Try to feed each item into the sink. + if sink.feed(*item).await.is_err() { + // When `feed` fails, the sink is full, so we flush it. + sink.flush().await.unwrap(); + // After flushing, the sink must be able to accept new items. + sink.feed(*item).await.unwrap(); + } + } + // Close the sink here to signal the end of the stream on the other end. + sink.close().await.unwrap(); + // Return the sink so we don't drop the ACK sending end yet. + sink + }); + + let recv_fut = tokio::spawn(async move { + let mut item_stream = ReceiverStream::new(receiver); + let mut items: Vec = vec![]; + while let Some(item) = item_stream.next().await { + // Receive each item sent by the sink. + items.push(item); + // Send the ACK for it. + ack_sender.send(items.len().try_into().unwrap()).unwrap(); + } + items + }); + + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + assert_eq!( + recv_result.unwrap(), + (0..u16::MAX).into_iter().rev().collect::>() + ); + } } From 64c70b050c453f6758e7a83c3af4f32551e6fadf Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Tue, 20 Sep 2022 16:25:41 +0300 Subject: [PATCH 192/735] Implement backpressured stream in muxink Signed-off-by: George Pisaltu --- Cargo.lock | 1 + muxink/Cargo.toml | 1 + muxink/src/backpressured.rs | 829 +++++++++++++++++++++++++++++++++++- 3 files changed, 823 insertions(+), 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index acedb61a01..2e5779f231 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2833,6 +2833,7 @@ dependencies = [ "tokio", "tokio-stream", "tokio-util 0.7.3", + "tracing", ] [[package]] diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 7aa031a28b..bb19e88069 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -12,6 +12,7 @@ serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" tokio = { version = "1", features = [ "full" ] } # TODO: Reduce features. tokio-util = "0.7.2" +tracing = "0.1.18" casper-types = { path = "../types", optional = true } [dev-dependencies] diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 95c10fc6aa..4364543fa6 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -23,7 +23,12 @@ use std::{ task::{Context, Poll}, }; -use futures::{Sink, SinkExt, Stream, StreamExt}; +use futures::{ + channel::mpsc::{Receiver, Sender}, + ready, Sink, SinkExt, Stream, StreamExt, +}; +use thiserror::Error as ThisError; +use tracing::error; use crate::{error::Error, try_ready}; @@ -194,18 +199,252 @@ where } } +/// Structure representing a ticket that comes with every yielded item from +/// a [`BackpressuredStream`]. Each yielded item will decrease the window +/// size as it is processed. When processing of the item is finished, the +/// associated ticket must be dropped. This signals to the +/// [`BackpressuredStream`] that there is room for one more item. Not dropping +/// tickets will consume capacity from the window size indefinitely. +/// +/// When the stream that created the ticket is dropped before the ticket, the +/// ACK associated with the ticket is silently ignored. +pub struct Ticket { + sender: Sender<()>, +} + +impl Ticket { + /// Creates a new ticket with the cloned `Sender` from the original + /// [`BackpressuredStream`]. + pub fn new(sender: Sender<()>) -> Self { + Self { sender } + } +} + +impl Drop for Ticket { + fn drop(&mut self) { + // Signal to the stream that the associated item has been processed + // and capacity should increase. + if let Err(e) = self.sender.try_send(()) { + // `try_send` can fail if either the buffer is full or the receiver + // was dropped. In the case of a receiver drop, we silently ignore + // the error as there is nothing to notify anymore. + if e.is_full() { + error!("Backpressured stream exceeded window size, ACK channel is full."); + } + } + } +} + +/// Error type for a [`BackpressuredStream`]. +#[derive(Debug, ThisError)] +pub enum BackpressuredStreamError { + /// Couldn't enqueue an ACK for sending on the ACK sink after it polled + /// ready. + #[error("Error sending ACK to sender")] + AckSend, + /// Error on polling the ACK sink. + #[error("Error polling the ACK stream")] + AckSinkPoll, + /// Error flushing the ACK sink. + #[error("Error flushing the ACK stream")] + Flush, + /// Error on the underlying stream when it is ready to yield a new item, + /// but doing so would bring the number of in flight items over the + /// limit imposed by the window size and therefore the sender broke the + /// contract. + #[error("Sender sent more items than the window size")] + ItemOverflow, + /// Error encountered by the underlying stream. + #[error(transparent)] + Stream(E), +} + +/// A back-pressuring stream. +/// +/// Combines a sink `A` of acknoledgements (ACKs) with a stream `S` that will expect a maximum +/// number of items in flight and send ACKs back to signal availability. +/// +/// In other words, the `BackpressuredStream` will receive and process `window_size` items at most +/// from the stream before sending one or more ACKs through the `ack_stream`. +/// +/// The ACKs sent back must be `u64`s, the sink will expect to receive at most one ACK per item +/// sent. The first sent item is expected to receive an ACK of `1u64`, the second `2u64` and so on. +/// +/// ACKs are not acknowledgments for a specific item being processed but indicate the total number +/// of processed items instead, thus they are unordered. They may be combined, an ACK of `n` implies +/// all missing ACKs `< n`. +/// +/// After the stream is closed, users should drop all associated tickets before dropping the stream +/// itself in order to ensure a graceful shutdown. They should not, however, poll the stream again +/// as that would lead to undefined behavior. +pub struct BackpressuredStream { + /// Inner stream to which backpressure is added. + inner: S, + /// Sink where the stream sends the ACKs to the sender. Users should ensure + /// this sink is able to buffer `window_size` + 1 ACKs in order to avoid + /// unnecessary latency related to flushing when sending ACKs back to the + /// sender. + ack_sink: A, + /// Receiving end of ACK channel between the yielded tickets and the + /// [`BackpressuredStream`]. ACKs received here will then be forwarded to + /// the sender through `ack_stream`. + ack_receiver: Receiver<()>, + /// Sending end of ACK channel between the yielded tickets and the + /// [`BackpressuredStream`]. This sender will be cloned and yielded in the + /// form of a ticket along with items from the inner stream. + ack_sender: Sender<()>, + /// Counter of items processed. + items_processed: u64, + /// Counter of items received from the underlying stream. + last_received: u64, + /// Counter of ACKs received from yielded tickets. + acks_received: u64, + /// The maximum number of items the stream can process at a single point + /// in time. + window_size: u64, + /// Phantom data required to include `Item` in the type. + _phantom: PhantomData, +} + +impl BackpressuredStream { + /// Creates a new [`BackpressuredStream`] with a window size from a given + /// stream and ACK sink. + pub fn new(inner: S, ack_sink: A, window_size: u64) -> Self { + // Create the channel used by tickets to signal that items are done + // processing. The channel will have a buffer of size `window_size + 1` + // as a `BackpressuredStream` with a window size of 0 should still be + // able to yield one item at a time. + let (ack_sender, ack_receiver) = futures::channel::mpsc::channel(window_size as usize + 1); + Self { + inner, + ack_sink, + ack_receiver, + ack_sender, + items_processed: 0, + last_received: 0, + acks_received: 0, + window_size, + _phantom: PhantomData, + } + } +} + +impl Stream for BackpressuredStream +where + S: Stream> + Unpin, + E: std::error::Error, + Self: Unpin, + A: Sink + Unpin, +{ + type Item = Result<(StreamItem, Ticket), BackpressuredStreamError>; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + // Retrieve every ACK from `ack_receiver`. + loop { + match self_mut.ack_receiver.poll_next_unpin(cx) { + Poll::Ready(Some(_)) => { + // Add to the received ACK counter. + self_mut.acks_received += 1; + } + // If there are no more ACKs waiting in the receiver, + // move on to sending anything received so far. + Poll::Pending => break, + // This is actually unreachable since the ACK stream + // will return `Poll::Ready(None)` only when all the + // senders are dropped, but one sender is always held + // within this struct. + Poll::Ready(None) => return Poll::Ready(None), + } + } + + // If there are received ACKs, proceed to enqueue them for sending. + if self_mut.acks_received > 0 { + // Ensure the ACK sink is ready to accept new ACKs. + match self_mut.ack_sink.poll_ready_unpin(cx) { + Poll::Ready(Ok(_)) => { + // Update the number of processed items. Items are considered + // processed at this point even though they haven't been + // flushed yet. From the point of view of a + // `BackpressuredStream`, the resources of the associated + // messages have been freed, so there is available capacity + // for more messages. + self_mut.items_processed += self_mut.acks_received; + // Enqueue one item representing the number of items processed + // so far. This should never be an error as the sink must be + // ready to accept new items at this point. + if let Err(_) = self_mut.ack_sink.start_send_unpin(self_mut.items_processed) { + return Poll::Ready(Some(Err(BackpressuredStreamError::AckSend))); + } + // Now that the ACKs have been handed to the ACK sink, + // reset the received ACK counter. + self_mut.acks_received = 0; + } + Poll::Ready(Err(_)) => { + // Return the error on the ACK sink. + return Poll::Ready(Some(Err(BackpressuredStreamError::AckSinkPoll))); + } + Poll::Pending => { + // Even though the sink is not ready to accept new items, + // the ACKs received from dropped tickets mean the stream + // has available capacity to accept new items. Any ACKs + // received from tickets are buffered in `acks_received` + // and will eventually be sent. + } + } + } + + // After ensuring all possible ACKs have been received and handed to + // the ACK sink, look to accept new items from the underlying stream. + // If the stream is pending, then this backpressured stream is also + // pending. + match ready!(self_mut.inner.poll_next_unpin(cx)) { + Some(Ok(next_item)) => { + // After receiving an item, ensure the maximum number of + // in-flight items does not exceed the window size. + if self_mut.last_received > self_mut.items_processed + self_mut.window_size { + return Poll::Ready(Some(Err(BackpressuredStreamError::ItemOverflow))); + } + // Update the counter of received items. + self_mut.last_received += 1; + // Yield the item along with a ticket to be released when + // the processing of said item is done. + return Poll::Ready(Some(Ok(( + next_item, + Ticket::new(self_mut.ack_sender.clone()), + )))); + } + Some(Err(err)) => { + // Return the error on the underlying stream. + return Poll::Ready(Some(Err(BackpressuredStreamError::Stream(err)))); + } + None => { + // If the underlying stream is closed, the `BackpressuredStream` + // is also considered closed. Polling the stream after this point + // is undefined behavior. + return Poll::Ready(None); + } + } + } +} + #[cfg(test)] mod tests { - use std::convert::TryInto; + use std::{ + collections::VecDeque, + convert::{Infallible, TryInto}, + pin::Pin, + task::{Context, Poll}, + }; - use futures::{FutureExt, SinkExt, StreamExt}; + use futures::{FutureExt, Sink, SinkExt, StreamExt}; use tokio::sync::mpsc::UnboundedSender; use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; use tokio_util::sync::PollSender; - use crate::error::Error; + use crate::{backpressured::Ticket, error::Error}; - use super::BackpressuredSink; + use super::{BackpressuredSink, BackpressuredStream, BackpressuredStreamError}; /// Window size used in tests. const WINDOW_SIZE: u64 = 3; @@ -230,8 +469,68 @@ mod tests { } } + /// A set of fixtures commonly used in the backpressure tests below. + struct CloggedAckSink { + clogged: bool, + /// Buffer for items when the sink is clogged. + buffer: VecDeque, + /// The sink ACKs are sent into. + ack_sender: PollSender, + } + + impl CloggedAckSink { + fn new(ack_sender: PollSender) -> Self { + Self { + clogged: false, + buffer: VecDeque::new(), + ack_sender, + } + } + + fn set_clogged(&mut self, clogged: bool) { + self.clogged = clogged; + } + } + + impl Sink for CloggedAckSink { + type Error = tokio_util::sync::PollSendError; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().ack_sender.poll_ready_unpin(cx) + } + + fn start_send(self: Pin<&mut Self>, item: u64) -> Result<(), Self::Error> { + let self_mut = self.get_mut(); + if self_mut.clogged { + self_mut.buffer.push_back(item); + Ok(()) + } else { + self_mut.ack_sender.start_send_unpin(item) + } + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + if self_mut.clogged { + Poll::Pending + } else { + if let Poll::Pending = self_mut.poll_ready_unpin(cx) { + return Poll::Pending; + } + while let Some(item) = self_mut.buffer.pop_front() { + self_mut.ack_sender.start_send_unpin(item).unwrap(); + } + self_mut.ack_sender.poll_flush_unpin(cx) + } + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().ack_sender.poll_close_unpin(cx) + } + } + #[test] - fn backpressure_lifecycle() { + fn backpressured_sink_lifecycle() { let Fixtures { ack_sender, mut bp } = Fixtures::new(); // The first four attempts at `window_size = 3` should succeed. @@ -277,7 +576,186 @@ mod tests { } #[test] - fn ensure_premature_ack_kills_stream() { + fn backpressured_stream_lifecycle() { + let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); + let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // The first four attempts at `window_size = 3` should succeed. + sink.send(0).now_or_never().unwrap().unwrap(); + sink.send(1).now_or_never().unwrap().unwrap(); + sink.send(2).now_or_never().unwrap().unwrap(); + sink.send(3).now_or_never().unwrap().unwrap(); + + let mut items = VecDeque::new(); + let mut tickets = VecDeque::new(); + // Receive the 4 items we sent along with their tickets. + for _ in 0..4 { + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + } + // Make sure there are no AKCs to receive as the tickets have not been + // dropped yet. + assert!(ack_receiver.recv().now_or_never().is_none()); + + // Drop the first ticket. + let _ = tickets.pop_front(); + // Poll the stream to propagate the ticket drop. + assert!(stream.next().now_or_never().is_none()); + + // We should be able to send a new item now that one ticket has been + // dropped. + sink.send(4).now_or_never().unwrap().unwrap(); + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + + // Drop another ticket. + let _ = tickets.pop_front(); + + // Send a new item without propagating the ticket drop through a poll. + // This should work because the ACKs are handled first in the poll + // state machine. + sink.send(5).now_or_never().unwrap().unwrap(); + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + + // Sending another item when the stream is at full capacity should + // yield an error from the stream. + sink.send(6).now_or_never().unwrap().unwrap(); + assert!(stream.next().now_or_never().unwrap().unwrap().is_err()); + } + + #[test] + fn backpressured_roundtrip() { + let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); + let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + let mut sink = BackpressuredSink::new( + PollSender::new(sink), + ReceiverStream::new(ack_receiver), + WINDOW_SIZE, + ); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // Send 4 items, using all capacity. + for i in 0..=WINDOW_SIZE { + sink.send(i as u16).now_or_never().unwrap().unwrap(); + } + + let mut items = VecDeque::new(); + let mut tickets = VecDeque::new(); + + // Receive the items along with their tickets. + for _ in 0..=WINDOW_SIZE { + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + } + // Make room for 2 more items. + let _ = tickets.pop_front(); + let _ = tickets.pop_front(); + // Send the ACKs to the sink by polling the stream. + assert!(stream.next().now_or_never().is_none()); + assert_eq!(stream.last_received, 4); + assert_eq!(stream.items_processed, 2); + // Send another item. Even though at this point in the stream state + // all capacity is used, the next poll will receive an ACK for 2 items. + assert_eq!(sink.last_request, 4); + assert_eq!(sink.received_ack, 0); + sink.send(4).now_or_never().unwrap().unwrap(); + // Make sure we received the ACK and we recorded the send. + assert_eq!(sink.last_request, 5); + assert_eq!(sink.received_ack, 2); + assert_eq!(stream.items_processed, 2); + // Send another item to fill up the capacity again. + sink.send(5).now_or_never().unwrap().unwrap(); + assert_eq!(sink.last_request, 6); + + // Receive both items. + for _ in 0..2 { + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + } + // At this point both the sink and stream should reflect the same + // state. + assert_eq!(sink.last_request, 6); + assert_eq!(sink.received_ack, 2); + assert_eq!(stream.last_received, 6); + assert_eq!(stream.items_processed, 2); + // Drop all tickets. + for _ in 0..=WINDOW_SIZE { + let _ = tickets.pop_front(); + } + // Send the ACKs to the sink by polling the stream. + assert!(stream.next().now_or_never().is_none()); + // Make sure the stream state reflects the sent ACKs. + assert_eq!(stream.items_processed, 6); + // Send another item. + sink.send(6).now_or_never().unwrap().unwrap(); + assert_eq!(sink.received_ack, 6); + assert_eq!(sink.last_request, 7); + // Receive the item. + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // At this point both the sink and stream should reflect the same + // state. + assert_eq!(stream.items_processed, 6); + assert_eq!(stream.last_received, 7); + items.push_back(item); + tickets.push_back(ticket); + + // Send 2 items. + sink.send(7).now_or_never().unwrap().unwrap(); + sink.send(8).now_or_never().unwrap().unwrap(); + // Receive only 1 item. + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // The sink state should be ahead of the stream by 1 item, which is yet + // to be yielded in a `poll_next` by the stream. + assert_eq!(sink.last_request, 9); + assert_eq!(sink.received_ack, 6); + assert_eq!(stream.items_processed, 6); + assert_eq!(stream.last_received, 8); + items.push_back(item); + tickets.push_back(ticket); + // Drop a ticket. + let _ = tickets.pop_front(); + // Receive the other item. Also send the ACK with this poll. + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // Ensure the stream state has been updated. + assert_eq!(stream.items_processed, 7); + assert_eq!(stream.last_received, 9); + items.push_back(item); + tickets.push_back(ticket); + + // The stream should have received all of these items. + assert_eq!(items, [0, 1, 2, 3, 4, 5, 6, 7, 8]); + + // Now send 2 more items to occupy all available capacity in the sink. + sink.send(9).now_or_never().unwrap().unwrap(); + // The sink should have received the latest ACK with this poll, so + // we check it against the stream one to ensure correctness. + assert_eq!(sink.received_ack, stream.items_processed); + sink.send(10).now_or_never().unwrap().unwrap(); + // Make sure we reached full capacity in the sink state. + assert_eq!(sink.last_request, sink.received_ack + WINDOW_SIZE + 1); + // Sending a new item should return `Poll::Pending`. + assert!(sink.send(9).now_or_never().is_none()); + } + + #[test] + fn backpressured_sink_premature_ack_kills_stream() { let Fixtures { ack_sender, mut bp } = Fixtures::new(); bp.send('A').now_or_never().unwrap().unwrap(); @@ -294,7 +772,7 @@ mod tests { } #[test] - fn ensure_redundant_ack_kills_stream() { + fn backpressured_sink_redundant_ack_kills_stream() { let Fixtures { ack_sender, mut bp } = Fixtures::new(); bp.send('A').now_or_never().unwrap().unwrap(); @@ -354,4 +832,339 @@ mod tests { (0..u16::MAX).into_iter().rev().collect::>() ); } + + #[tokio::test] + async fn backpressured_roundtrip_concurrent_tasks() { + let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); + + let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + let mut sink: BackpressuredSink, ReceiverStream, u16> = + BackpressuredSink::new( + PollSender::new(sink), + ReceiverStream::new(ack_receiver), + WINDOW_SIZE, + ); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + let send_fut = tokio::spawn(async move { + for item in to_send.iter() { + // Try to feed each item into the sink. + if sink.feed(*item).await.is_err() { + // When `feed` fails, the sink is full, so we flush it. + sink.flush().await.unwrap(); + // After flushing, the sink must be able to accept new items. + match sink.feed(*item).await { + Err(Error::AckStreamClosed) => { + return sink; + } + Ok(_) => {} + Err(e) => { + panic!("Error on sink send: {}", e); + } + } + } + } + // Close the sink here to signal the end of the stream on the other end. + sink.close().await.unwrap(); + // Return the sink so we don't drop the ACK sending end yet. + sink + }); + + let recv_fut = tokio::spawn(async move { + let mut items: Vec = vec![]; + while let Some(next) = stream.next().await { + let (item, ticket) = next.unwrap(); + // Receive each item sent by the sink. + items.push(item); + // Make sure to drop the ticket after processing. + drop(ticket); + } + items + }); + + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + assert_eq!( + recv_result.unwrap(), + (0..u16::MAX).into_iter().rev().collect::>() + ); + } + + #[tokio::test] + async fn backpressured_stream_concurrent_tasks() { + let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); + let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + let send_fut = tokio::spawn(async move { + // Try to push the limit on the backpressured stream by always keeping + // its buffer full. + let mut window_len = WINDOW_SIZE + 1; + let mut last_ack = 0; + for item in to_send.iter() { + // If we don't have any more room left to send, + // we look for ACKs. + if window_len == 0 { + let ack = { + // We need at least one ACK to continue, but we may have + // received more, so try to read everything we've got + // so far. + let mut ack = ack_receiver.recv().await.unwrap(); + while let Ok(new_ack) = ack_receiver.try_recv() { + ack = new_ack; + } + ack + }; + // Update our window with the new capacity and the latest ACK. + window_len += ack - last_ack; + last_ack = ack; + } + // Consume window capacity and send the item. + sink.send(*item).await.unwrap(); + window_len -= 1; + } + // Yield the ACK receiving end so it doesn't get dropped before the + // stream sends everything but drop the sink so that we signal the + // end of the stream. + ack_receiver + }); + + let recv_fut = tokio::spawn(async move { + let mut items: Vec = vec![]; + while let Some(next) = stream.next().await { + let (item, ticket) = next.unwrap(); + // Receive each item sent by the sink. + items.push(item); + // Make sure to drop the ticket after processing. + drop(ticket); + } + items + }); + + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + assert_eq!( + recv_result.unwrap(), + (0..u16::MAX).into_iter().rev().collect::>() + ); + } + + #[tokio::test] + async fn backpressured_stream_hold_ticket_concurrent_tasks() { + let to_send: Vec = (0..u8::MAX).into_iter().rev().collect(); + let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); + let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + let send_fut = tokio::spawn(async move { + // Try to push the limit on the backpressured stream by always keeping + // its buffer full. + let mut window_len = WINDOW_SIZE + 1; + let mut last_ack = 0; + for item in to_send.iter() { + // If we don't have any more room left to send, + // we look for ACKs. + if window_len == 0 { + let ack = { + // We need at least one ACK to continue, but we may have + // received more, so try to read everything we've got + // so far. + let mut ack = loop { + let ack = ack_receiver.recv().await.unwrap(); + if ack > last_ack { + break ack; + } + }; + while let Ok(new_ack) = ack_receiver.try_recv() { + ack = std::cmp::max(new_ack, ack); + } + ack + }; + // Update our window with the new capacity and the latest ACK. + window_len += ack - last_ack; + last_ack = ack; + } + // Consume window capacity and send the item. + sink.send(*item).await.unwrap(); + window_len -= 1; + } + // Yield the ACK receiving end so it doesn't get dropped before the + // stream sends everything but drop the sink so that we signal the + // end of the stream. + ack_receiver + }); + + let recv_fut = tokio::spawn(async move { + let mut items: Vec = vec![]; + let mut handles = vec![]; + while let Some(next) = stream.next().await { + let (item, ticket) = next.unwrap(); + // Receive each item sent by the sink. + items.push(item); + // Randomness factor. + let factor = items.len(); + // We will have separate threads do the processing here + // while we keep trying to receive items. + let handle = std::thread::spawn(move || { + // Simulate the processing by sleeping for an + // arbitrary amount of time. + std::thread::sleep(std::time::Duration::from_micros(10 * (factor as u64 % 3))); + // Release the ticket to signal the end of processing. + // ticket.release().now_or_never().unwrap(); + drop(ticket); + }); + handles.push(handle); + // If we have too many open threads, join on them and + // drop the handles to avoid running out of resources. + if handles.len() == WINDOW_SIZE as usize { + for handle in handles.drain(..) { + handle.join().unwrap(); + } + } + } + // Join any remaining handles. + for handle in handles { + handle.join().unwrap(); + } + items + }); + + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + assert_eq!( + recv_result.unwrap(), + (0..u8::MAX).into_iter().rev().collect::>() + ); + } + + #[tokio::test] + async fn backpressured_stream_item_overflow() { + // `WINDOW_SIZE + 1` elements are allowed to be in flight at a single + // point in time, so we need one more element to be able to overflow + // the stream. + let to_send: Vec = (0..WINDOW_SIZE as u16 + 2).into_iter().rev().collect(); + let (sink, stream) = tokio::sync::mpsc::channel::(to_send.len()); + let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(to_send.len()); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + let send_fut = tokio::spawn(async move { + for item in to_send.iter() { + // Disregard the ACKs, keep sending to overflow the stream. + if let Err(_) = sink.send(*item).await { + // The stream should close when we overflow it, so at some + // point we will receive an error when trying to send items. + break; + } + } + ack_receiver + }); + + let recv_fut = tokio::spawn(async move { + let mut items: Vec = vec![]; + let mut tickets: Vec = vec![]; + while let Some(next) = stream.next().await { + match next { + Ok((item, ticket)) => { + // Receive each item sent by the sink. + items.push(item); + // Hold the tickets so we don't release capacity. + tickets.push(ticket); + } + Err(BackpressuredStreamError::ItemOverflow) => { + // Make sure we got this error right as the stream was + // about to exceed capacity. + assert_eq!(items.len(), WINDOW_SIZE as usize + 1); + return None; + } + Err(err) => { + panic!("Unexpected error: {}", err); + } + } + } + Some(items) + }); + + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + // Ensure the stream yielded an error. + assert!(recv_result.unwrap().is_none()); + } + + #[test] + fn backpressured_stream_ack_clogging() { + let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); + let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); + + let stream = ReceiverStream::new(stream).map(|item| { + let res: Result = Ok(item); + res + }); + let mut clogged_stream = CloggedAckSink::new(PollSender::new(ack_sender)); + clogged_stream.set_clogged(true); + let mut stream = BackpressuredStream::new(stream, clogged_stream, WINDOW_SIZE); + + // The first four attempts at `window_size = 3` should succeed. + sink.send(0).now_or_never().unwrap().unwrap(); + sink.send(1).now_or_never().unwrap().unwrap(); + sink.send(2).now_or_never().unwrap().unwrap(); + sink.send(3).now_or_never().unwrap().unwrap(); + + let mut items = VecDeque::new(); + let mut tickets = VecDeque::new(); + // Receive the 4 items we sent along with their tickets. + for _ in 0..4 { + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + } + // Drop a ticket, making room for one more item. + let _ = tickets.pop_front(); + // Ensure no ACK was received since the sink is clogged. + assert!(ack_receiver.recv().now_or_never().is_none()); + // Ensure polling the stream returns pending. + assert!(stream.next().now_or_never().is_none()); + assert!(ack_receiver.recv().now_or_never().is_none()); + + // Send a new item because now we should have capacity. + sink.send(4).now_or_never().unwrap().unwrap(); + // Receive the item along with the ticket. + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + + // Unclog the ACK sink. This should let 1 ACK finally flush. + stream.ack_sink.set_clogged(false); + // Drop another ticket. + let _ = tickets.pop_front(); + // Send a new item with the capacity from the second ticket drop. + sink.send(5).now_or_never().unwrap().unwrap(); + // Receive the item from the stream. + let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + assert_eq!(ack_receiver.recv().now_or_never().unwrap().unwrap(), 2); + assert!(ack_receiver.recv().now_or_never().is_none()); + } } From fc7a6c608189aec4105d0439b22752ed001b5cbc Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Mon, 26 Sep 2022 16:44:53 +0300 Subject: [PATCH 193/735] Allow out of order ACKs in backpressured sink Signed-off-by: George Pisaltu --- muxink/src/backpressured.rs | 23 ++++++++++++++++++----- muxink/src/error.rs | 5 +++-- 2 files changed, 21 insertions(+), 7 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 4364543fa6..d38380cd5a 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -18,6 +18,7 @@ //! multiplexed setup, guaranteed to not be impeding the flow of other channels. use std::{ + cmp::max, marker::PhantomData, pin::Pin, task::{Context, Poll}, @@ -97,7 +98,7 @@ impl BackpressuredSink { }); } - if ack_received <= self.received_ack { + if ack_received + self.window_size < self.last_request { return Err(Error::DuplicateAck { ack_received, highest: self.received_ack, @@ -131,9 +132,7 @@ where match self_mut.ack_stream.poll_next_unpin(cx) { Poll::Ready(Some(ack_received)) => { try_ready!(self_mut.validate_ack(ack_received)); - // validate_ack!(self_mut, ack_received); - - self_mut.received_ack = ack_received; + self_mut.received_ack = max(self_mut.received_ack, ack_received); } Poll::Ready(None) => { // The ACK stream has been closed. Close our sink, now that we know, but try to @@ -773,15 +772,29 @@ mod tests { #[test] fn backpressured_sink_redundant_ack_kills_stream() { + // Window size is 3, so if the sink can send at most + // `window_size + 1` requests, it must also follow that any ACKs fall + // in the [`last_request` - `window_size` - 1, `last_request`] + // interval. In other words, if we sent request no. `last_request`, + // we must have had ACKs up until at least + // `last_request` - `window_size`, so an ACK out of range is a + // duplicate. let Fixtures { ack_sender, mut bp } = Fixtures::new(); bp.send('A').now_or_never().unwrap().unwrap(); bp.send('B').now_or_never().unwrap().unwrap(); + // Out of order ACKs work. ack_sender.send(2).unwrap(); ack_sender.send(1).unwrap(); + // Send 3 more items to make it 5 in total. + bp.send('C').now_or_never().unwrap().unwrap(); + bp.send('D').now_or_never().unwrap().unwrap(); + bp.send('E').now_or_never().unwrap().unwrap(); + // Send a duplicate ACK of 1, which is outside the allowed range. + ack_sender.send(1).unwrap(); assert!(matches!( - bp.send('C').now_or_never(), + bp.send('F').now_or_never(), Some(Err(Error::DuplicateAck { ack_received: 1, highest: 2 diff --git a/muxink/src/error.rs b/muxink/src/error.rs index 756a54b44a..3382ed0572 100644 --- a/muxink/src/error.rs +++ b/muxink/src/error.rs @@ -16,8 +16,9 @@ where /// An ACK was received for an item that had not been sent yet. #[error("received ACK {actual}, but only sent {items_sent} items")] UnexpectedAck { actual: u64, items_sent: u64 }, - /// Received an ACK for an item that an ACK was already received for. - #[error("duplicate ACK {ack_received} receveid, already received {highest}")] + /// Received an ACK for an item that an ACK must have already been received + /// as it is outside the window. + #[error("duplicate ACK {ack_received} received, already received {highest}")] DuplicateAck { ack_received: u64, highest: u64 }, /// The ACK stream associated with a backpressured channel was close.d #[error("ACK stream closed")] From 6de3964d2f81c66de7526b7ab64b7d924d7a9005 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Oct 2022 15:50:13 +0200 Subject: [PATCH 194/735] muxink: Fix broken links in documentation --- muxink/src/framing.rs | 2 +- muxink/src/framing/length_delimited.rs | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/muxink/src/framing.rs b/muxink/src/framing.rs index 9ae3fe4974..561027672f 100644 --- a/muxink/src/framing.rs +++ b/muxink/src/framing.rs @@ -52,7 +52,7 @@ where fn encode_frame(&mut self, buffer: T) -> Result; } -/// The outcome of a [`decode_frame`] call. +/// The outcome of a frame decoding operation. #[derive(Debug, Error)] pub enum DecodeResult { /// A complete item was decoded. diff --git a/muxink/src/framing/length_delimited.rs b/muxink/src/framing/length_delimited.rs index 59ed68b274..ac2d282fae 100644 --- a/muxink/src/framing/length_delimited.rs +++ b/muxink/src/framing/length_delimited.rs @@ -3,8 +3,8 @@ //! Allows for frames to be at most `u16::MAX` (64 KB) in size. Frames are encoded by prefixing //! their length in little endian byte order in front of every frame. //! -//! The module provides an encoder through the [`Transcoder`] implementation, and a [`FrameDecoder`] -//! for reading these length delimited frames back from a stream. +//! The module provides an encoder through the [`FrameEncoder`] implementation, and a +//! [`FrameDecoder`] for reading these length delimited frames back from a stream. use std::convert::Infallible; From abdf4c0c7bc5528a7c71a98e1ec4c57dbdff71a9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Oct 2022 16:35:47 +0200 Subject: [PATCH 195/735] muxink: Split `error::Error` into `MultiplexerError` and `BackpressureError`, obviating the `error` module --- muxink/src/backpressured.rs | 75 ++++++++++++++++++++++++++----------- muxink/src/error.rs | 34 ----------------- muxink/src/lib.rs | 1 - muxink/src/mux.rs | 47 +++++++++++++++-------- 4 files changed, 85 insertions(+), 72 deletions(-) delete mode 100644 muxink/src/error.rs diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index d38380cd5a..a87a713764 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -28,10 +28,10 @@ use futures::{ channel::mpsc::{Receiver, Sender}, ready, Sink, SinkExt, Stream, StreamExt, }; -use thiserror::Error as ThisError; +use thiserror::Error; use tracing::error; -use crate::{error::Error, try_ready}; +use crate::try_ready; /// A back-pressuring sink. /// @@ -63,6 +63,29 @@ pub struct BackpressuredSink { _phantom: PhantomData, } +/// A backpressure error. +#[derive(Debug, Error)] +pub enum BackpressureError +where + E: std::error::Error, +{ + /// An ACK was received for an item that had not been sent yet. + #[error("received ACK {actual}, but only sent {items_sent} items")] + UnexpectedAck { actual: u64, items_sent: u64 }, + /// Received an ACK for an item that an ACK must have already been received + /// as it is outside the window. + #[error("duplicate ACK {ack_received} received, already received {highest}")] + DuplicateAck { ack_received: u64, highest: u64 }, + /// The ACK stream associated with a backpressured channel was close.d + #[error("ACK stream closed")] + AckStreamClosed, + #[error("ACK stream error")] + AckStreamError, // TODO: Capture actual ack stream error here. + /// The wrapped sink returned an error. + #[error(transparent)] + Sink(#[from] E), +} + impl BackpressuredSink { /// Constructs a new backpressured sink. /// @@ -87,19 +110,19 @@ impl BackpressuredSink { /// Validates a received ack. /// /// Returns an error if the `ACK` was a duplicate or from the future. - fn validate_ack(&mut self, ack_received: u64) -> Result<(), Error> + fn validate_ack(&mut self, ack_received: u64) -> Result<(), BackpressureError> where E: std::error::Error, { if ack_received > self.last_request { - return Err(Error::UnexpectedAck { + return Err(BackpressureError::UnexpectedAck { actual: ack_received, items_sent: self.last_request, }); } if ack_received + self.window_size < self.last_request { - return Err(Error::DuplicateAck { + return Err(BackpressureError::DuplicateAck { ack_received, highest: self.received_ack, }); @@ -119,7 +142,7 @@ where A: Stream + Unpin, >::Error: std::error::Error, { - type Error = Error<>::Error>; + type Error = BackpressureError<>::Error>; #[inline] fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -137,14 +160,18 @@ where Poll::Ready(None) => { // The ACK stream has been closed. Close our sink, now that we know, but try to // flush as much as possible. - match self_mut.inner.poll_close_unpin(cx).map_err(Error::Sink) { + match self_mut + .inner + .poll_close_unpin(cx) + .map_err(BackpressureError::Sink) + { Poll::Ready(Ok(())) => { // All data has been flushed, we can now safely return an error. - return Poll::Ready(Err(Error::AckStreamClosed)); + return Poll::Ready(Err(BackpressureError::AckStreamClosed)); } Poll::Ready(Err(_)) => { // The was an error polling the ACK stream. - return Poll::Ready(Err(Error::AckStreamError)); + return Poll::Ready(Err(BackpressureError::AckStreamError)); } Poll::Pending => { // Data was flushed, but not done yet, keep polling. @@ -168,7 +195,10 @@ where } // We have slots available, it is up to the wrapped sink to accept them. - self_mut.inner.poll_ready_unpin(cx).map_err(Error::Sink) + self_mut + .inner + .poll_ready_unpin(cx) + .map_err(BackpressureError::Sink) } #[inline] @@ -178,7 +208,10 @@ where self_mut.last_request += 1; - self_mut.inner.start_send_unpin(item).map_err(Error::Sink) + self_mut + .inner + .start_send_unpin(item) + .map_err(BackpressureError::Sink) } #[inline] @@ -186,7 +219,7 @@ where self.get_mut() .inner .poll_flush_unpin(cx) - .map_err(Error::Sink) + .map_err(BackpressureError::Sink) } #[inline] @@ -194,7 +227,7 @@ where self.get_mut() .inner .poll_close_unpin(cx) - .map_err(Error::Sink) + .map_err(BackpressureError::Sink) } } @@ -235,7 +268,7 @@ impl Drop for Ticket { } /// Error type for a [`BackpressuredStream`]. -#[derive(Debug, ThisError)] +#[derive(Debug, Error)] pub enum BackpressuredStreamError { /// Couldn't enqueue an ACK for sending on the ACK sink after it polled /// ready. @@ -441,9 +474,9 @@ mod tests { use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; use tokio_util::sync::PollSender; - use crate::{backpressured::Ticket, error::Error}; - - use super::{BackpressuredSink, BackpressuredStream, BackpressuredStreamError}; + use super::{ + BackpressureError, BackpressuredSink, BackpressuredStream, BackpressuredStreamError, Ticket, + }; /// Window size used in tests. const WINDOW_SIZE: u64 = 3; @@ -565,7 +598,7 @@ mod tests { assert!(matches!( bp.send('I').now_or_never(), - Some(Err(Error::AckStreamClosed)) + Some(Err(BackpressureError::AckStreamClosed)) )); // Check all data was received correctly. @@ -763,7 +796,7 @@ mod tests { assert!(matches!( bp.send('C').now_or_never(), - Some(Err(Error::UnexpectedAck { + Some(Err(BackpressureError::UnexpectedAck { items_sent: 2, actual: 3 })) @@ -795,7 +828,7 @@ mod tests { assert!(matches!( bp.send('F').now_or_never(), - Some(Err(Error::DuplicateAck { + Some(Err(BackpressureError::DuplicateAck { ack_received: 1, highest: 2 })) @@ -873,7 +906,7 @@ mod tests { sink.flush().await.unwrap(); // After flushing, the sink must be able to accept new items. match sink.feed(*item).await { - Err(Error::AckStreamClosed) => { + Err(BackpressureError::AckStreamClosed) => { return sink; } Ok(_) => {} diff --git a/muxink/src/error.rs b/muxink/src/error.rs deleted file mode 100644 index 3382ed0572..0000000000 --- a/muxink/src/error.rs +++ /dev/null @@ -1,34 +0,0 @@ -use std::convert::Infallible; - -use thiserror::Error; - -// TODO: It is probably better to nest error instead, to see clearer what is going on. - -/// A frame prefix conversion error. -#[derive(Debug, Error)] -pub enum Error -where - E: std::error::Error, -{ - /// The frame's length cannot be represented with the prefix. - #[error("frame too long {actual}/{max}")] - FrameTooLong { actual: usize, max: usize }, - /// An ACK was received for an item that had not been sent yet. - #[error("received ACK {actual}, but only sent {items_sent} items")] - UnexpectedAck { actual: u64, items_sent: u64 }, - /// Received an ACK for an item that an ACK must have already been received - /// as it is outside the window. - #[error("duplicate ACK {ack_received} received, already received {highest}")] - DuplicateAck { ack_received: u64, highest: u64 }, - /// The ACK stream associated with a backpressured channel was close.d - #[error("ACK stream closed")] - AckStreamClosed, - #[error("ACK stream error")] - AckStreamError, // TODO: Capture actual ack stream error here. - /// The multiplexer was closed, while a handle tried to access it. - #[error("Multiplexer closed")] - MultiplexerClosed, - /// The wrapped sink returned an error. - #[error(transparent)] - Sink(#[from] E), -} diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 5465520c76..584179aa99 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -2,7 +2,6 @@ pub mod backpressured; pub mod demux; -pub mod error; pub mod fragmented; pub mod framing; pub mod io; diff --git a/muxink/src/mux.rs b/muxink/src/mux.rs index 100ed3f38a..0e70d1eca6 100644 --- a/muxink/src/mux.rs +++ b/muxink/src/mux.rs @@ -28,10 +28,11 @@ use std::{ use bytes::Buf; use futures::{ready, FutureExt, Sink, SinkExt}; +use thiserror::Error; use tokio::sync::{Mutex, OwnedMutexGuard}; use tokio_util::sync::ReusableBoxFuture; -use crate::{error::Error, try_ready, ImmediateFrame}; +use crate::{try_ready, ImmediateFrame}; pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; @@ -105,6 +106,20 @@ impl Multiplexer { } } +/// A multiplexing error. +#[derive(Debug, Error)] +pub enum MultiplexerError +where + E: std::error::Error, +{ + /// The multiplexer was closed, while a handle tried to access it. + #[error("Multiplexer closed")] + MultiplexerClosed, + /// The wrapped sink returned an error. + #[error(transparent)] + Sink(#[from] E), +} + /// A guard of a protected sink. type SinkGuard = OwnedMutexGuard>; @@ -196,15 +211,17 @@ where F: Buf, >>::Error: std::error::Error, { - type Error = Error<>>::Error>; + type Error = MultiplexerError<>>::Error>; fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let sink_guard = ready!(self.acquire_lock(cx)); // We have acquired the lock, now our job is to wait for the sink to become ready. - try_ready!(sink_guard.as_mut().ok_or(Error::MultiplexerClosed)) - .poll_ready_unpin(cx) - .map_err(Error::Sink) + try_ready!(sink_guard + .as_mut() + .ok_or(MultiplexerError::MultiplexerClosed)) + .poll_ready_unpin(cx) + .map_err(MultiplexerError::Sink) } fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { @@ -221,11 +238,12 @@ where let sink = match guard.as_mut() { Some(sink) => sink, None => { - return Err(Error::MultiplexerClosed); + return Err(MultiplexerError::MultiplexerClosed); } }; - sink.start_send_unpin(prefixed).map_err(Error::Sink)?; + sink.start_send_unpin(prefixed) + .map_err(MultiplexerError::Sink)?; // Item is enqueued, increase the send count. let last_send = self.send_count.fetch_add(1, Ordering::SeqCst) + 1; @@ -261,7 +279,7 @@ where } None => { self.sink_guard.take(); - return Poll::Ready(Err(Error::MultiplexerClosed)); + return Poll::Ready(Err(MultiplexerError::MultiplexerClosed)); } }; @@ -273,7 +291,7 @@ where // Release lock. self.sink_guard.take(); - Poll::Ready(outcome.map_err(Error::Sink)) + Poll::Ready(outcome.map_err(MultiplexerError::Sink)) } fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -293,7 +311,7 @@ where // Release lock. self.sink_guard.take(); - Poll::Ready(outcome.map_err(Error::Sink)) + Poll::Ready(outcome.map_err(MultiplexerError::Sink)) } } @@ -305,12 +323,9 @@ mod tests { use futures::{FutureExt, SinkExt}; use tokio::sync::Mutex; - use crate::{ - error::Error, - testing::{collect_bufs, testing_sink::TestingSink}, - }; + use crate::testing::{collect_bufs, testing_sink::TestingSink}; - use super::{ChannelPrefixedFrame, Multiplexer}; + use super::{ChannelPrefixedFrame, Multiplexer, MultiplexerError}; #[test] fn ensure_creating_lock_acquisition_future_is_side_effect_free() { @@ -369,7 +384,7 @@ mod tests { .now_or_never() .unwrap() .unwrap_err(); - assert!(matches!(outcome, Error::MultiplexerClosed)); + assert!(matches!(outcome, MultiplexerError::MultiplexerClosed)); } #[test] From 306d6f8ea05cea244d96aad613e2fb9af9a58cb0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Oct 2022 17:52:03 +0200 Subject: [PATCH 196/735] Cleanup documentation for root crate, `fragmented`, `io`, `framing` and write about cancellation safety --- muxink/src/fragmented.rs | 23 ++++++++++++++++++++++- muxink/src/io.rs | 7 +------ muxink/src/lib.rs | 26 +++++++++++++++++++++++++- 3 files changed, 48 insertions(+), 8 deletions(-) diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index af07b96603..95edfefb31 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -1,6 +1,8 @@ //! Splits frames into fragments. //! -//! The wire format for fragments is `NCCC...` where `CCC...` is the data fragment and `N` is the +//! # Wire format +//! +//! The wire format for fragments is `NCCC...` where `CCC...` is the fragment's data and `N` is the //! continuation byte, which is `0x00` if more fragments are following, `0xFF` if this is the //! frame's last fragment. @@ -16,6 +18,11 @@ use thiserror::Error; use crate::{try_ready, ImmediateFrame}; +/// A fragment to be sent over the write. +/// +/// `SingleFrament` is produced by the `Fragmentizer` and sent to the wrapped stream. It is +/// constructed from the passed in `B: Buf` value, so if `Bytes` is used for the bulk of the data, +/// no copies of the data are made, all fragments refer to the initial buffer being passed in. pub type SingleFragment = bytes::buf::Chain, Bytes>; /// Indicator that more fragments are following. @@ -24,6 +31,10 @@ const MORE_FRAGMENTS: u8 = 0x00; /// Final fragment indicator. const FINAL_FRAGMENT: u8 = 0xFF; +/// A sink adapter for fragmentation. +/// +/// Any item sent into `Fragmentizer` will be split into `fragment_size` large fragments before +/// being sent. #[derive(Debug)] pub struct Fragmentizer { current_frame: Option, @@ -47,6 +58,7 @@ where } } + /// Attempts to finish sending the current frame. fn flush_current_frame( &mut self, cx: &mut Context<'_>, @@ -130,14 +142,22 @@ where } } +/// A defragmenting stream adapter. #[derive(Debug)] pub struct Defragmentizer { + /// The underyling stream that fragments are read from. stream: S, + /// Buffer for an unfinished frame. buffer: BytesMut, + /// The maximum frame size to tolerate. max_output_frame_size: usize, } impl Defragmentizer { + /// Creates a new defragmentizer. + /// + /// If a received frame assembled from fragments would exceed `max_output_frame_size`, the + /// stream will produce an error. pub fn new(max_output_frame_size: usize, stream: S) -> Self { Defragmentizer { stream, @@ -147,6 +167,7 @@ impl Defragmentizer { } } +/// An error during defragmentation. #[derive(Debug, Error)] pub enum DefragmentizerError { /// A fragment header was sent that is not `MORE_FRAGMENTS` or `FINAL_FRAGMENT`. diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 6ba6503790..7a3a35e188 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -1,6 +1,6 @@ //! Frame reading and writing //! -//! Frame readers and writers are responsible for writing a [`bytes::Bytes`] frame to an +//! [`FrameReader`]s and [`FrameWriter`]s are responsible for writing a [`bytes::Bytes`] frame to an //! [`AsyncWrite`] writer, or reading them from [`AsyncRead`] reader. While writing works for any //! value that implements the [`bytes::Buf`] trait, decoding requires an implementation of the //! [`FrameDecoder`] trait. @@ -22,11 +22,6 @@ use crate::{ /// Reads frames from an underlying reader. /// /// Uses the given [`FrameDecoder`] `D` to read frames from the underlying IO. -/// -/// # Cancellation safety -/// -/// The [`Stream`] implementation on [`FrameDecoder`] is cancellation safe, as it buffers data -/// inside the reader, not the `next` future. #[derive(Debug)] pub struct FrameReader { /// Decoder used to decode frames. diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 584179aa99..abe67cad4c 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -1,4 +1,28 @@ -//! Asynchronous multiplexing +//! Asynchronous multiplexing. +//! +//! The `muxink` crate allows building complex stream setups that multiplex, fragment, encode and +//! backpressure messages sent across asynchronous streams. +//! +//! # How to get started +//! +//! At the lowest level, the [`io::FrameReader`] and [`io::FrameWriter`] wrappers provide +//! [`Sink`](futures::Sink) and [`Stream`](futures::Stream) implementations on top of +//! [`AsyncRead`](futures::AsyncRead) and [`AsyncWrite`](futures::AsyncWrite) implementing types. +//! These can then be wrapped with any of types [`mux`]/[`demux`], [`fragmented`] or +//! [`backpressured`] to layer functionality on top. +//! +//! # Cancellation safety +//! +//! All streams and sinks constructed by combining types from this crate at least uphold the +//! following invariants: +//! +//! * [`SinkExt::send`](futures::SinkExt::send), [`SinkExt::send_all`](futures::SinkExt::send_all): +//! Safe to cancel, although no guarantees are made whether an item was actually sent -- if the +//! sink was still busy, it may not have been moved into the sink. The underlying stream will be +//! left in a consistent state regardless. +//! * [`SinkExt::flush`](futures::SinkExt::flush): Safe to cancel. +//! * [`StreamExt::next`](futures::StreamExt::next): Safe to cancel. Cancelling it will not cause +//! items to be lost upon construction of another [`next`](futures::StreamExt::next) future. pub mod backpressured; pub mod demux; From 8908184f50381fb47b49f05b64780930463dfc3a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Oct 2022 16:42:56 +0200 Subject: [PATCH 197/735] muxink: Update documentation for `backpressured` module --- muxink/src/backpressured.rs | 57 ++++++++++++++++++------------------- 1 file changed, 27 insertions(+), 30 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index a87a713764..bd25bcfe42 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -9,7 +9,7 @@ //! //! The issue with this type of implementation is that if multiple channels (see [`crate::mux`]) are //! used across a shared TCP connection, a single blocking channel will block all the other channels -//! (see [Head-of-line blocking](https://en.wikipedia.org/wiki/Head-of-line_blocking)). Furthermore, +//! ([Head-of-line blocking](https://en.wikipedia.org/wiki/Head-of-line_blocking)). Furthermore, //! deadlocks can occur if the data sent is a request which requires a response - should two peers //! make requests of each other at the same and end up backpressured, they may end up simultaneously //! waiting for the other peer to make progress. @@ -33,13 +33,14 @@ use tracing::error; use crate::try_ready; -/// A back-pressuring sink. +/// A backpressuring sink. /// /// Combines a stream `A` of acknoledgements (ACKs) with a sink `S` that will count items in flight /// and expect an appropriate amount of ACKs to flow back through it. /// -/// In other words, the `BackpressuredSink` will send `window_size` items at most to the sink -/// without having received one or more ACKs through the `ack_stream`. +/// The `BackpressuredSink` will pass `window_size` items at most to the wrapped sink without having +/// received one or more ACKs through the `ack_stream`. If this limit is exceeded, the sink polls as +/// pending. /// /// The ACKs sent back must be `u64`s, the sink will expect to receive at most one ACK per item /// sent. The first sent item is expected to receive an ACK of `1u64`, the second `2u64` and so on. @@ -47,6 +48,9 @@ use crate::try_ready; /// ACKs are not acknowledgments for a specific item being processed but indicate the total number /// of processed items instead, thus they are unordered. They may be combined, an ACK of `n` implies /// all missing ACKs `< n`. +/// +/// Duplicate ACKs will cause an error, thus sending ACKs in the wrong order will cause an error in +/// the sink, as the higher ACK will implicitly have contained the lower one. pub struct BackpressuredSink { /// The inner sink that items will be forwarded to. inner: S, @@ -148,8 +152,6 @@ where fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let self_mut = Pin::into_inner(self); - // TODO: Describe deadlock-freeness. - // Attempt to read as many ACKs as possible. loop { match self_mut.ack_stream.poll_next_unpin(cx) { @@ -174,6 +176,8 @@ where return Poll::Ready(Err(BackpressureError::AckStreamError)); } Poll::Pending => { + // TODO: This is not legal, we should not poll a closed ack stream. Return the error straight away. + // Data was flushed, but not done yet, keep polling. return Poll::Pending; } @@ -231,15 +235,15 @@ where } } -/// Structure representing a ticket that comes with every yielded item from -/// a [`BackpressuredStream`]. Each yielded item will decrease the window -/// size as it is processed. When processing of the item is finished, the -/// associated ticket must be dropped. This signals to the -/// [`BackpressuredStream`] that there is room for one more item. Not dropping -/// tickets will consume capacity from the window size indefinitely. +/// A ticket from a [`BackpressuredStream`]. /// -/// When the stream that created the ticket is dropped before the ticket, the -/// ACK associated with the ticket is silently ignored. +/// Each yielded item will decrease the window size as it is processed. When processing of the item +/// is finished, the associated ticket must be dropped. This signals to the [`BackpressuredStream`] +/// that there is room for one more item. Not dropping tickets will consume capacity from the window +/// size indefinitely. +/// +/// When the stream that created the ticket is dropped before the ticket, the ACK associated with +/// the ticket is silently ignored. pub struct Ticket { sender: Sender<()>, } @@ -291,24 +295,17 @@ pub enum BackpressuredStreamError { Stream(E), } -/// A back-pressuring stream. -/// -/// Combines a sink `A` of acknoledgements (ACKs) with a stream `S` that will expect a maximum -/// number of items in flight and send ACKs back to signal availability. +/// A backpressuring stream. /// -/// In other words, the `BackpressuredStream` will receive and process `window_size` items at most -/// from the stream before sending one or more ACKs through the `ack_stream`. +/// Combines a sink `A` of acknowledgements (ACKs) with a stream `S` that will allow a maximum +/// number of items in flight and send ACKs back to signal availability. Sending of ACKs is managed +/// through [`Ticket`]s, which will automatically trigger an ACK being sent when dropped. /// -/// The ACKs sent back must be `u64`s, the sink will expect to receive at most one ACK per item -/// sent. The first sent item is expected to receive an ACK of `1u64`, the second `2u64` and so on. -/// -/// ACKs are not acknowledgments for a specific item being processed but indicate the total number -/// of processed items instead, thus they are unordered. They may be combined, an ACK of `n` implies -/// all missing ACKs `< n`. +/// If more than `window_size` items are received on the stream before ACKs have been sent back, the +/// stream will return an error indicating the peer's capacity violation. /// -/// After the stream is closed, users should drop all associated tickets before dropping the stream -/// itself in order to ensure a graceful shutdown. They should not, however, poll the stream again -/// as that would lead to undefined behavior. +/// If a stream is dropped, any outstanding ACKs will be lost. No ACKs will be sent unless this +/// stream is actively polled (e.g. via [`StreamExt::next`](futures::stream::StreamExt::next)). pub struct BackpressuredStream { /// Inner stream to which backpressure is added. inner: S, @@ -338,7 +335,7 @@ pub struct BackpressuredStream { _phantom: PhantomData, } -impl BackpressuredStream { +impl BackpressuredStream { /// Creates a new [`BackpressuredStream`] with a window size from a given /// stream and ACK sink. pub fn new(inner: S, ack_sink: A, window_size: u64) -> Self { From 4b1d49cbf55a356df366f90c0b021ce0368b1cbe Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Oct 2022 16:45:45 +0200 Subject: [PATCH 198/735] muxink: Do not try to flush if ACK stream is closed --- muxink/src/backpressured.rs | 23 +---------------------- 1 file changed, 1 insertion(+), 22 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index bd25bcfe42..562e548cf6 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -160,28 +160,7 @@ where self_mut.received_ack = max(self_mut.received_ack, ack_received); } Poll::Ready(None) => { - // The ACK stream has been closed. Close our sink, now that we know, but try to - // flush as much as possible. - match self_mut - .inner - .poll_close_unpin(cx) - .map_err(BackpressureError::Sink) - { - Poll::Ready(Ok(())) => { - // All data has been flushed, we can now safely return an error. - return Poll::Ready(Err(BackpressureError::AckStreamClosed)); - } - Poll::Ready(Err(_)) => { - // The was an error polling the ACK stream. - return Poll::Ready(Err(BackpressureError::AckStreamError)); - } - Poll::Pending => { - // TODO: This is not legal, we should not poll a closed ack stream. Return the error straight away. - - // Data was flushed, but not done yet, keep polling. - return Poll::Pending; - } - } + return Poll::Ready(Err(BackpressureError::AckStreamClosed)); } Poll::Pending => { // Invariant: `received_ack` is always <= `last_request`. From e5170fbb3c78f61f2a5d573ce22dc6228ea4f877 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Oct 2022 16:54:25 +0200 Subject: [PATCH 199/735] muxink: Note pecularities of backpressured tickets --- muxink/src/backpressured.rs | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 562e548cf6..dfbd6d1ff4 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -216,10 +216,7 @@ where /// A ticket from a [`BackpressuredStream`]. /// -/// Each yielded item will decrease the window size as it is processed. When processing of the item -/// is finished, the associated ticket must be dropped. This signals to the [`BackpressuredStream`] -/// that there is room for one more item. Not dropping tickets will consume capacity from the window -/// size indefinitely. +/// Each ticket, when dropped, will queue an ACK to be sent the next time the stream is polled. /// /// When the stream that created the ticket is dropped before the ticket, the ACK associated with /// the ticket is silently ignored. From a844725d614858685fc1848e02116b7b1b883fe6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Oct 2022 17:23:56 +0200 Subject: [PATCH 200/735] muxink: Update `demux` docs header --- muxink/src/demux.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index d4bb035ffc..0ba5d780f5 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -1,8 +1,8 @@ //! Stream demultiplexing //! -//! Demultiplexes a Stream of Bytes into multiple channels. Up to 256 channels are supported, and -//! if messages are present on a channel but there isn't an associated DemultiplexerHandle for that -//! channel, then the Stream will never poll as Ready. +//! Demultiplexes a Stream of Bytes into multiple channels. Up to 256 channels are supported, and if +//! messages are present on a channel but there isn't an associated [`DemultiplexerHandle`] for that +//! channel, then the stream will never poll as ready. use std::{ error::Error, From faba008996f8cd9d1e6bfabd7eb7112111288933 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 26 Oct 2022 16:08:38 +0200 Subject: [PATCH 201/735] Make backpressured sink process ack errors --- muxink/src/backpressured.rs | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index dfbd6d1ff4..251742e4cd 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -69,9 +69,10 @@ pub struct BackpressuredSink { /// A backpressure error. #[derive(Debug, Error)] -pub enum BackpressureError +pub enum BackpressureError where - E: std::error::Error, + SinkErr: std::error::Error, + AckErr: std::error::Error, { /// An ACK was received for an item that had not been sent yet. #[error("received ACK {actual}, but only sent {items_sent} items")] @@ -80,14 +81,15 @@ where /// as it is outside the window. #[error("duplicate ACK {ack_received} received, already received {highest}")] DuplicateAck { ack_received: u64, highest: u64 }, - /// The ACK stream associated with a backpressured channel was close.d + /// The ACK stream associated with a backpressured channel was closed. #[error("ACK stream closed")] AckStreamClosed, + /// There was an error retrieving ACKs from the ACK stream. #[error("ACK stream error")] - AckStreamError, // TODO: Capture actual ack stream error here. - /// The wrapped sink returned an error. + AckStreamError(#[source] AckErr), + /// The underlying sink had an error. #[error(transparent)] - Sink(#[from] E), + Sink(#[from] SinkErr), } impl BackpressuredSink { @@ -114,9 +116,13 @@ impl BackpressuredSink { /// Validates a received ack. /// /// Returns an error if the `ACK` was a duplicate or from the future. - fn validate_ack(&mut self, ack_received: u64) -> Result<(), BackpressureError> + fn validate_ack( + &mut self, + ack_received: u64, + ) -> Result<(), BackpressureError> where - E: std::error::Error, + SinkErr: std::error::Error, + AckErr: std::error::Error, { if ack_received > self.last_request { return Err(BackpressureError::UnexpectedAck { @@ -136,17 +142,18 @@ impl BackpressuredSink { } } -impl Sink for BackpressuredSink +impl Sink for BackpressuredSink where // TODO: `Unpin` trait bounds can be // removed by using `map_unchecked` if // necessary. S: Sink + Unpin, Self: Unpin, - A: Stream + Unpin, + A: Stream> + Unpin, + AckErr: std::error::Error, >::Error: std::error::Error, { - type Error = BackpressureError<>::Error>; + type Error = BackpressureError<>::Error, AckErr>; #[inline] fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -155,7 +162,10 @@ where // Attempt to read as many ACKs as possible. loop { match self_mut.ack_stream.poll_next_unpin(cx) { - Poll::Ready(Some(ack_received)) => { + Poll::Ready(Some(Err(ack_err))) => { + return Poll::Ready(Err(BackpressureError::AckStreamError(ack_err))) + } + Poll::Ready(Some(Ok(ack_received))) => { try_ready!(self_mut.validate_ack(ack_received)); self_mut.received_ack = max(self_mut.received_ack, ack_received); } From 7a94f25963d205142bef59cbc3cc2672062f382a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 27 Oct 2022 11:56:56 +0200 Subject: [PATCH 202/735] muxink: Add `TestingSink::get_contents_string` --- muxink/src/testing/testing_sink.rs | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/muxink/src/testing/testing_sink.rs b/muxink/src/testing/testing_sink.rs index 2da6101198..4fac61826c 100644 --- a/muxink/src/testing/testing_sink.rs +++ b/muxink/src/testing/testing_sink.rs @@ -99,6 +99,11 @@ impl TestingSink { ) } + /// Returns a copy of the contents, parsed as a UTF8 encoded string. + pub fn get_contents_string(&self) -> String { + String::from_utf8(self.get_contents()).expect("non-utf8 characters in sink") + } + /// Creates a new reference to the testing sink that also implements `Sink`. /// /// Internally, the reference has a static lifetime through `Arc` and can thus be passed From b2ac9ba98610c8fd879c7af40adb8afa2762fa48 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 27 Oct 2022 12:03:47 +0200 Subject: [PATCH 203/735] muxink: Add `testing::encoding` module --- muxink/src/testing.rs | 1 + muxink/src/testing/encoding.rs | 76 ++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+) create mode 100644 muxink/src/testing/encoding.rs diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 666d09f607..3d0116f968 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -1,5 +1,6 @@ //! Testing support utilities. +pub mod encoding; pub mod pipe; pub mod testing_sink; diff --git a/muxink/src/testing/encoding.rs b/muxink/src/testing/encoding.rs new file mode 100644 index 0000000000..943c5a1356 --- /dev/null +++ b/muxink/src/testing/encoding.rs @@ -0,0 +1,76 @@ +//! Quickly encoding values. +//! +//! Implements a small encoding scheme for values into raw bytes: +//! +//! * Integers are encoded as little-endian bytestrings. +//! * Single bytes are passed through unchanged. +//! * Chars are encoded as UTF-8 characters. +//! +//! Note that there is no decoding format, as the format is insufficiently framed to allow for easy +//! deserialization. + +use bytes::Bytes; +use futures::{Sink, SinkExt}; + +/// A value that is encodable using the testing encoding. +pub(crate) trait TestEncodeable { + /// Encodes the value to bytes. + /// + /// This function is not terribly efficient, but in test code, it does not have to be. + fn encode(&self) -> Bytes; +} + +impl TestEncodeable for char { + #[inline] + fn encode(&self) -> Bytes { + let mut buf = [0u8; 6]; + let s = self.encode_utf8(&mut buf); + Bytes::from(s.to_string()) + } +} + +impl TestEncodeable for u8 { + #[inline] + fn encode(&self) -> Bytes { + let raw: Box<[u8]> = Box::new([*self]); + Bytes::from(raw) + } +} + +impl TestEncodeable for u32 { + #[inline] + fn encode(&self) -> Bytes { + let raw: Box<[u8]> = Box::new(self.to_le_bytes()); + Bytes::from(raw) + } +} + +/// Helper trait for quickly encoding and sending a value. +pub(crate) trait EncodeAndSend { + /// Encode a value using test encoding and send it. + /// + /// This is equivalent to the following code: + /// + /// ```ignore + /// let sink: Sink = // ...; + /// let encoded = value.encode(); + /// sink.send(encoded) + /// ``` + fn encode_and_send<'a, T>(&'a mut self, value: T) -> futures::sink::Send<'a, Self, Bytes> + where + T: TestEncodeable; +} + +impl EncodeAndSend for S +where + S: Sink + Unpin, +{ + fn encode_and_send<'a, T>(&'a mut self, value: T) -> futures::sink::Send<'a, Self, Bytes> + where + T: TestEncodeable, + { + { + self.send(value.encode()) + } + } +} From 04784994b4b2d8b47e9565069187bc47932b187b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 27 Oct 2022 12:12:50 +0200 Subject: [PATCH 204/735] muxink: Convert `Fixture` using existing `backpressured` tests to use testing sink --- muxink/src/backpressured.rs | 118 +++++++++++++++++++++--------------- 1 file changed, 70 insertions(+), 48 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 251742e4cd..af8db70d49 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -449,14 +449,21 @@ mod tests { collections::VecDeque, convert::{Infallible, TryInto}, pin::Pin, + sync::Arc, task::{Context, Poll}, }; + use bytes::Bytes; use futures::{FutureExt, Sink, SinkExt, StreamExt}; use tokio::sync::mpsc::UnboundedSender; use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; use tokio_util::sync::PollSender; + use crate::testing::{ + encoding::EncodeAndSend, + testing_sink::{TestingSink, TestingSinkRef}, + }; + use super::{ BackpressureError, BackpressuredSink, BackpressuredStream, BackpressuredStreamError, Ticket, }; @@ -464,27 +471,6 @@ mod tests { /// Window size used in tests. const WINDOW_SIZE: u64 = 3; - /// A set of fixtures commonly used in the backpressure tests below. - struct Fixtures { - /// The stream ACKs are sent into. - ack_sender: UnboundedSender, - /// The backpressured sink. - bp: BackpressuredSink, UnboundedReceiverStream, char>, - } - - impl Fixtures { - /// Creates a new set of fixtures. - fn new() -> Self { - let sink = Vec::new(); - let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); - let ack_stream = UnboundedReceiverStream::new(ack_receiver); - let bp = BackpressuredSink::new(sink, ack_stream, WINDOW_SIZE); - - Fixtures { ack_sender, bp } - } - } - - /// A set of fixtures commonly used in the backpressure tests below. struct CloggedAckSink { clogged: bool, /// Buffer for items when the sink is clogged. @@ -544,34 +530,68 @@ mod tests { } } + /// A common set of fixtures used in the backpressure tests. + /// + /// The fixtures represent what a server holds when dealing with a backpressured client. + + struct Fixtures { + /// A sender for ACKs back to the client. + ack_sender: UnboundedSender, + /// The clients sink for requests, with no backpressure wrapper. Used for retrieving the + /// test data in the end or setting plugged/clogged status. + sink: Arc, + /// The properly set up backpressured sink. + bp: BackpressuredSink, Bytes>, + } + + impl Fixtures { + /// Creates a new set of fixtures. + fn new() -> Self { + let sink = Arc::new(TestingSink::new()); + let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); + let ack_stream = UnboundedReceiverStream::new(ack_receiver); + + let bp = BackpressuredSink::new(sink.clone().into_ref(), ack_stream, WINDOW_SIZE); + Self { + ack_sender, + sink, + bp, + } + } + } + #[test] fn backpressured_sink_lifecycle() { - let Fixtures { ack_sender, mut bp } = Fixtures::new(); + let Fixtures { + ack_sender, + sink, + mut bp, + } = Fixtures::new(); // The first four attempts at `window_size = 3` should succeed. - bp.send('A').now_or_never().unwrap().unwrap(); - bp.send('B').now_or_never().unwrap().unwrap(); - bp.send('C').now_or_never().unwrap().unwrap(); - bp.send('D').now_or_never().unwrap().unwrap(); + bp.encode_and_send('A').now_or_never().unwrap().unwrap(); + bp.encode_and_send('B').now_or_never().unwrap().unwrap(); + bp.encode_and_send('C').now_or_never().unwrap().unwrap(); + bp.encode_and_send('D').now_or_never().unwrap().unwrap(); // The fifth attempt will fail, due to no ACKs having been received. - assert!(bp.send('E').now_or_never().is_none()); + assert!(bp.encode_and_send('E').now_or_never().is_none()); // We can now send some ACKs. ack_sender.send(1).unwrap(); // Retry sending the fifth message, sixth should still block. - bp.send('E').now_or_never().unwrap().unwrap(); - assert!(bp.send('F').now_or_never().is_none()); + bp.encode_and_send('E').now_or_never().unwrap().unwrap(); + assert!(bp.encode_and_send('F').now_or_never().is_none()); // Send a combined ack for three messages. ack_sender.send(4).unwrap(); // This allows 3 more messages to go in. - bp.send('F').now_or_never().unwrap().unwrap(); - bp.send('G').now_or_never().unwrap().unwrap(); - bp.send('H').now_or_never().unwrap().unwrap(); - assert!(bp.send('I').now_or_never().is_none()); + bp.encode_and_send('F').now_or_never().unwrap().unwrap(); + bp.encode_and_send('G').now_or_never().unwrap().unwrap(); + bp.encode_and_send('H').now_or_never().unwrap().unwrap(); + assert!(bp.encode_and_send('I').now_or_never().is_none()); // Send more ACKs to ensure we also get errors if there is capacity. ack_sender.send(6).unwrap(); @@ -580,14 +600,12 @@ mod tests { drop(ack_sender); assert!(matches!( - bp.send('I').now_or_never(), + bp.encode_and_send('I').now_or_never(), Some(Err(BackpressureError::AckStreamClosed)) )); // Check all data was received correctly. - let output: String = bp.into_inner().0.into_iter().collect(); - - assert_eq!(output, "ABCDEFGH"); + assert_eq!(sink.get_contents_string(), "ABCDEFGH"); } #[test] @@ -771,14 +789,16 @@ mod tests { #[test] fn backpressured_sink_premature_ack_kills_stream() { - let Fixtures { ack_sender, mut bp } = Fixtures::new(); + let Fixtures { + ack_sender, mut bp, .. + } = Fixtures::new(); - bp.send('A').now_or_never().unwrap().unwrap(); - bp.send('B').now_or_never().unwrap().unwrap(); + bp.encode_and_send('A').now_or_never().unwrap().unwrap(); + bp.encode_and_send('B').now_or_never().unwrap().unwrap(); ack_sender.send(3).unwrap(); assert!(matches!( - bp.send('C').now_or_never(), + bp.encode_and_send('C').now_or_never(), Some(Err(BackpressureError::UnexpectedAck { items_sent: 2, actual: 3 @@ -795,22 +815,24 @@ mod tests { // we must have had ACKs up until at least // `last_request` - `window_size`, so an ACK out of range is a // duplicate. - let Fixtures { ack_sender, mut bp } = Fixtures::new(); + let Fixtures { + ack_sender, mut bp, .. + } = Fixtures::new(); - bp.send('A').now_or_never().unwrap().unwrap(); - bp.send('B').now_or_never().unwrap().unwrap(); + bp.encode_and_send('A').now_or_never().unwrap().unwrap(); + bp.encode_and_send('B').now_or_never().unwrap().unwrap(); // Out of order ACKs work. ack_sender.send(2).unwrap(); ack_sender.send(1).unwrap(); // Send 3 more items to make it 5 in total. - bp.send('C').now_or_never().unwrap().unwrap(); - bp.send('D').now_or_never().unwrap().unwrap(); - bp.send('E').now_or_never().unwrap().unwrap(); + bp.encode_and_send('C').now_or_never().unwrap().unwrap(); + bp.encode_and_send('D').now_or_never().unwrap().unwrap(); + bp.encode_and_send('E').now_or_never().unwrap().unwrap(); // Send a duplicate ACK of 1, which is outside the allowed range. ack_sender.send(1).unwrap(); assert!(matches!( - bp.send('F').now_or_never(), + bp.encode_and_send('F').now_or_never(), Some(Err(BackpressureError::DuplicateAck { ack_received: 1, highest: 2 From a873e7c92df8017186851bc9a77da9f9b9791471 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 27 Oct 2022 13:35:48 +0200 Subject: [PATCH 205/735] muxink: Factor out `BufferingClogAdapter` out of `backpressure` module --- muxink/src/backpressured.rs | 71 ++--------------------- muxink/src/testing/testing_sink.rs | 93 ++++++++++++++++++++++++++++++ 2 files changed, 98 insertions(+), 66 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index af8db70d49..7d95f1dad9 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -448,20 +448,18 @@ mod tests { use std::{ collections::VecDeque, convert::{Infallible, TryInto}, - pin::Pin, sync::Arc, - task::{Context, Poll}, }; use bytes::Bytes; - use futures::{FutureExt, Sink, SinkExt, StreamExt}; + use futures::{FutureExt, SinkExt, StreamExt}; use tokio::sync::mpsc::UnboundedSender; use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; use tokio_util::sync::PollSender; use crate::testing::{ encoding::EncodeAndSend, - testing_sink::{TestingSink, TestingSinkRef}, + testing_sink::{BufferingClogAdapter, TestingSink, TestingSinkRef}, }; use super::{ @@ -471,65 +469,6 @@ mod tests { /// Window size used in tests. const WINDOW_SIZE: u64 = 3; - struct CloggedAckSink { - clogged: bool, - /// Buffer for items when the sink is clogged. - buffer: VecDeque, - /// The sink ACKs are sent into. - ack_sender: PollSender, - } - - impl CloggedAckSink { - fn new(ack_sender: PollSender) -> Self { - Self { - clogged: false, - buffer: VecDeque::new(), - ack_sender, - } - } - - fn set_clogged(&mut self, clogged: bool) { - self.clogged = clogged; - } - } - - impl Sink for CloggedAckSink { - type Error = tokio_util::sync::PollSendError; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().ack_sender.poll_ready_unpin(cx) - } - - fn start_send(self: Pin<&mut Self>, item: u64) -> Result<(), Self::Error> { - let self_mut = self.get_mut(); - if self_mut.clogged { - self_mut.buffer.push_back(item); - Ok(()) - } else { - self_mut.ack_sender.start_send_unpin(item) - } - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - if self_mut.clogged { - Poll::Pending - } else { - if let Poll::Pending = self_mut.poll_ready_unpin(cx) { - return Poll::Pending; - } - while let Some(item) = self_mut.buffer.pop_front() { - self_mut.ack_sender.start_send_unpin(item).unwrap(); - } - self_mut.ack_sender.poll_flush_unpin(cx) - } - } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().ack_sender.poll_close_unpin(cx) - } - } - /// A common set of fixtures used in the backpressure tests. /// /// The fixtures represent what a server holds when dealing with a backpressured client. @@ -1172,9 +1111,9 @@ mod tests { let res: Result = Ok(item); res }); - let mut clogged_stream = CloggedAckSink::new(PollSender::new(ack_sender)); - clogged_stream.set_clogged(true); - let mut stream = BackpressuredStream::new(stream, clogged_stream, WINDOW_SIZE); + let mut clogged_ack_sink = BufferingClogAdapter::new(PollSender::new(ack_sender)); + clogged_ack_sink.set_clogged(true); + let mut stream = BackpressuredStream::new(stream, clogged_ack_sink, WINDOW_SIZE); // The first four attempts at `window_size = 3` should succeed. sink.send(0).now_or_never().unwrap().unwrap(); diff --git a/muxink/src/testing/testing_sink.rs b/muxink/src/testing/testing_sink.rs index 4fac61826c..3a90341986 100644 --- a/muxink/src/testing/testing_sink.rs +++ b/muxink/src/testing/testing_sink.rs @@ -1,7 +1,9 @@ //! Bytes-streaming testing sink. use std::{ + collections::VecDeque, convert::Infallible, + fmt::Debug, io::Read, ops::Deref, pin::Pin, @@ -280,3 +282,94 @@ async fn waiting_tasks_can_progress_upon_unplugging_the_sink() { // `Waker::wake_by_ref` call in the sink implementation. join_handle.await.unwrap(); } + +/// A clogging adapter. +/// +/// While the `TestingSink` combines a buffer with a sink and plugging/clogging capabilities, it is +/// sometimes necessary to just limit flow through an underlying sink. The `ClogAdapter` allows to +/// do just that, controlling whether or not items are held or sent through to an underlying stream. +pub struct BufferingClogAdapter +where + S: Sink, +{ + /// Whether or not the clog is currently engaged. + clogged: bool, + /// Buffer for items when the sink is clogged. + buffer: VecDeque, + /// The sink items are sent into. + sink: S, + /// The waker of the last task to access the plug. Will be called when removing. + waker: Option, +} + +impl BufferingClogAdapter +where + S: Sink, +{ + /// Creates a new clogging adapter wrapping a sink. + /// + /// Initially the clog will not be engaged. + pub fn new(sink: S) -> Self { + Self { + clogged: false, + buffer: VecDeque::new(), + sink, + waker: None, + } + } + + /// Set the clogging state. + pub fn set_clogged(&mut self, clogged: bool) { + self.clogged = clogged; + + // If we were unclogged and have a waker, call it. + if !clogged { + if let Some(waker) = self.waker.take() { + waker.wake(); + } + } + } +} + +impl Sink for BufferingClogAdapter +where + S: Sink + Unpin, + Item: Unpin, + >::Error: Debug, +{ + type Error = >::Error; + + fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().sink.poll_ready_unpin(cx) + } + + fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error> { + let self_mut = self.get_mut(); + if self_mut.clogged { + self_mut.buffer.push_back(item); + Ok(()) + } else { + self_mut.sink.start_send_unpin(item) + } + } + + fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let self_mut = self.get_mut(); + if self_mut.clogged { + self_mut.waker = Some(cx.waker().clone()); + Poll::Pending + } else { + if let Poll::Pending = self_mut.poll_ready_unpin(cx) { + return Poll::Pending; + } + while let Some(item) = self_mut.buffer.pop_front() { + self_mut.sink.start_send_unpin(item).unwrap(); + } + self_mut.sink.poll_flush_unpin(cx) + } + } + + fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + self.get_mut().sink.poll_close_unpin(cx) + } +} From a07523343db95b215fdde94527503138cc0bfc80 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 27 Oct 2022 13:51:30 +0200 Subject: [PATCH 206/735] muxink: Remove stale crate-level tests --- muxink/src/lib.rs | 135 ---------------------------------------------- 1 file changed, 135 deletions(-) diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index abe67cad4c..c56c2b4531 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -101,138 +101,3 @@ where self.pos = (self.pos + cnt).min(self.value.as_ref().len()); } } - -#[rustfmt::skip] -#[cfg(test)] -pub(crate) mod tests { - - // /// Test an "end-to-end" instance of the assembled pipeline for sending. - // #[test] - // fn fragmented_length_prefixed_sink() { - // let (tx, rx) = pipe(); - - // let frame_writer = FrameWriter::new(LengthDelimited, tx); - // let mut fragmented_sink = - // make_fragmentizer::<_, Infallible>(frame_writer, NonZeroUsize::new(5).unwrap()); - - // let frame_reader = FrameReader::new(LengthDelimited, rx, TESTING_BUFFER_INCREMENT); - // let fragmented_reader = make_defragmentizer(frame_reader); - - // let sample_data = Bytes::from(&b"QRSTUV"[..]); - - // fragmented_sink - // .send(sample_data) - // .now_or_never() - // .unwrap() - // .expect("send failed"); - - // // Drop the sink, to ensure it is closed. - // drop(fragmented_sink); - - // let round_tripped: Vec<_> = fragmented_reader.collect().now_or_never().unwrap(); - - // assert_eq!(round_tripped, &[&b"QRSTUV"[..]]) - // } - - // #[test] - // fn from_bytestream_to_frame() { - // let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL"[..]; - // let expected = "ABCDEFGHIJKL"; - - // let defragmentizer = make_defragmentizer(FrameReader::new( - // LengthDelimited, - // input, - // TESTING_BUFFER_INCREMENT, - // )); - - // let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); - // assert_eq!( - // expected, - // messages.first().expect("should have at least one message") - // ); - // } - - // #[test] - // fn from_bytestream_to_multiple_frames() { - // let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x10\x00\xffSINGLE_FRAGMENT\x02\x00\x00C\x02\x00\x00R\x02\x00\x00U\x02\x00\x00M\x02\x00\x00B\x02\x00\xffS"[..]; - // let expected: &[&[u8]] = &[b"ABCDEFGHIJKL", b"SINGLE_FRAGMENT", b"CRUMBS"]; - - // let defragmentizer = make_defragmentizer(FrameReader::new( - // LengthDelimited, - // input, - // TESTING_BUFFER_INCREMENT, - // )); - - // let messages: Vec<_> = defragmentizer.collect().now_or_never().unwrap(); - // assert_eq!(expected, messages); - // } - - // #[test] - // fn ext_decorator_encoding() { - // let mut sink: TranscodingSink< - // LengthDelimited, - // Bytes, - // TranscodingSink, TestingSink>, - // > = TranscodingSink::new( - // LengthDelimited, - // TranscodingSink::new(LengthDelimited, TestingSink::new()), - // ); - - // let inner: TranscodingSink = - // TestingSink::new().with_transcoder(LengthDelimited); - - // let mut sink2: TranscodingSink< - // LengthDelimited, - // Bytes, - // TranscodingSink, TestingSink>, - // > = SinkMuxExt::>::with_transcoder(inner, LengthDelimited); - - // sink.send(Bytes::new()).now_or_never(); - // } - - // struct StrLen; - - // impl Transcoder for StrLen { - // type Error = Infallible; - - // type Output = [u8; 4]; - - // fn transcode(&mut self, input: String) -> Result { - // Ok((input.len() as u32).to_le_bytes()) - // } - // } - - // struct BytesEnc; - - // impl Transcoder for BytesEnc - // where - // U: AsRef<[u8]>, - // { - // type Error = Infallible; - - // type Output = Bytes; - - // fn transcode(&mut self, input: U) -> Result { - // Ok(Bytes::copy_from_slice(input.as_ref())) - // } - // } - - // #[test] - // fn ext_decorator_encoding() { - // let sink = TranscodingSink::new(LengthDelimited, TestingSink::new()); - // let mut outer_sink = TranscodingSink::new(StrLen, TranscodingSink::new(BytesEnc, sink)); - - // outer_sink - // .send("xx".to_owned()) - // .now_or_never() - // .unwrap() - // .unwrap(); - - // let mut sink2 = TestingSink::new() - // .length_delimited() - // .with_transcoder(BytesEnc) - // .with_transcoder(StrLen); - - // sink2.send("xx".to_owned()).now_or_never().unwrap().unwrap(); - // } -} From 05f2d9d83afae0415ed24e3198cd12c9f022acf2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 28 Oct 2022 16:35:03 +0200 Subject: [PATCH 207/735] muxink: Factor out and repair more testing after fallible ACK stream change --- muxink/src/backpressured.rs | 1074 ++++++++++++++++++----------------- 1 file changed, 558 insertions(+), 516 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 7d95f1dad9..241bfc4780 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -448,11 +448,12 @@ mod tests { use std::{ collections::VecDeque, convert::{Infallible, TryInto}, + io, sync::Arc, }; use bytes::Bytes; - use futures::{FutureExt, SinkExt, StreamExt}; + use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; use tokio::sync::mpsc::UnboundedSender; use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; use tokio_util::sync::PollSender; @@ -469,40 +470,72 @@ mod tests { /// Window size used in tests. const WINDOW_SIZE: u64 = 3; + /// Sets up a `Sink`/`Stream` pair that outputs infallible results. + fn setup_io_pipe( + size: usize, + ) -> ( + impl Sink + Unpin + 'static, + impl Stream> + Unpin + 'static, + ) { + let (send, recv) = tokio::sync::mpsc::channel::(size); + + let stream = ReceiverStream::new(recv).map(Ok); + + let sink = + PollSender::new(send).sink_map_err(|err| panic!("did not expect a `PollSendError`")); + + (sink, stream) + } + + // Backpressure requirements + // impl Sink for BackpressuredSink + // where + // S: Sink + Unpin, + // Self: Unpin, + // A: Stream> + Unpin, + // AckErr: std::error::Error, + // >::Error: std::error::Error, + /// A common set of fixtures used in the backpressure tests. /// /// The fixtures represent what a server holds when dealing with a backpressured client. struct Fixtures { /// A sender for ACKs back to the client. - ack_sender: UnboundedSender, + ack_sink: Box + Unpin>, /// The clients sink for requests, with no backpressure wrapper. Used for retrieving the /// test data in the end or setting plugged/clogged status. sink: Arc, /// The properly set up backpressured sink. - bp: BackpressuredSink, Bytes>, + bp: BackpressuredSink< + TestingSinkRef, + Box> + Unpin>, + Bytes, + >, } impl Fixtures { /// Creates a new set of fixtures. fn new() -> Self { let sink = Arc::new(TestingSink::new()); - let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); - let ack_stream = UnboundedReceiverStream::new(ack_receiver); + + let (raw_ack_sink, raw_ack_stream) = setup_io_pipe::(1024); + + // The ACK stream and sink need to be boxed to make their types named. + let ack_sink: Box + Unpin> = Box::new(raw_ack_sink); + let ack_stream: Box> + Unpin> = + Box::new(raw_ack_stream); let bp = BackpressuredSink::new(sink.clone().into_ref(), ack_stream, WINDOW_SIZE); - Self { - ack_sender, - sink, - bp, - } + + Self { ack_sink, sink, bp } } } #[test] fn backpressured_sink_lifecycle() { let Fixtures { - ack_sender, + mut ack_sink, sink, mut bp, } = Fixtures::new(); @@ -517,14 +550,14 @@ mod tests { assert!(bp.encode_and_send('E').now_or_never().is_none()); // We can now send some ACKs. - ack_sender.send(1).unwrap(); + ack_sink.send(1).now_or_never().unwrap().unwrap(); // Retry sending the fifth message, sixth should still block. bp.encode_and_send('E').now_or_never().unwrap().unwrap(); assert!(bp.encode_and_send('F').now_or_never().is_none()); // Send a combined ack for three messages. - ack_sender.send(4).unwrap(); + ack_sink.send(4).now_or_never().unwrap().unwrap(); // This allows 3 more messages to go in. bp.encode_and_send('F').now_or_never().unwrap().unwrap(); @@ -533,10 +566,10 @@ mod tests { assert!(bp.encode_and_send('I').now_or_never().is_none()); // Send more ACKs to ensure we also get errors if there is capacity. - ack_sender.send(6).unwrap(); + ack_sink.send(6).now_or_never().unwrap().unwrap(); // We can now close the ACK stream to check if the sink errors after that. - drop(ack_sender); + drop(ack_sink); assert!(matches!( bp.encode_and_send('I').now_or_never(), @@ -607,134 +640,141 @@ mod tests { #[test] fn backpressured_roundtrip() { - let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); - let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - let mut sink = BackpressuredSink::new( - PollSender::new(sink), - ReceiverStream::new(ack_receiver), - WINDOW_SIZE, - ); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // Send 4 items, using all capacity. - for i in 0..=WINDOW_SIZE { - sink.send(i as u16).now_or_never().unwrap().unwrap(); - } - - let mut items = VecDeque::new(); - let mut tickets = VecDeque::new(); - - // Receive the items along with their tickets. - for _ in 0..=WINDOW_SIZE { - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - } - // Make room for 2 more items. - let _ = tickets.pop_front(); - let _ = tickets.pop_front(); - // Send the ACKs to the sink by polling the stream. - assert!(stream.next().now_or_never().is_none()); - assert_eq!(stream.last_received, 4); - assert_eq!(stream.items_processed, 2); - // Send another item. Even though at this point in the stream state - // all capacity is used, the next poll will receive an ACK for 2 items. - assert_eq!(sink.last_request, 4); - assert_eq!(sink.received_ack, 0); - sink.send(4).now_or_never().unwrap().unwrap(); - // Make sure we received the ACK and we recorded the send. - assert_eq!(sink.last_request, 5); - assert_eq!(sink.received_ack, 2); - assert_eq!(stream.items_processed, 2); - // Send another item to fill up the capacity again. - sink.send(5).now_or_never().unwrap().unwrap(); - assert_eq!(sink.last_request, 6); - - // Receive both items. - for _ in 0..2 { - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - } - // At this point both the sink and stream should reflect the same - // state. - assert_eq!(sink.last_request, 6); - assert_eq!(sink.received_ack, 2); - assert_eq!(stream.last_received, 6); - assert_eq!(stream.items_processed, 2); - // Drop all tickets. - for _ in 0..=WINDOW_SIZE { - let _ = tickets.pop_front(); - } - // Send the ACKs to the sink by polling the stream. - assert!(stream.next().now_or_never().is_none()); - // Make sure the stream state reflects the sent ACKs. - assert_eq!(stream.items_processed, 6); - // Send another item. - sink.send(6).now_or_never().unwrap().unwrap(); - assert_eq!(sink.received_ack, 6); - assert_eq!(sink.last_request, 7); - // Receive the item. - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // At this point both the sink and stream should reflect the same - // state. - assert_eq!(stream.items_processed, 6); - assert_eq!(stream.last_received, 7); - items.push_back(item); - tickets.push_back(ticket); - - // Send 2 items. - sink.send(7).now_or_never().unwrap().unwrap(); - sink.send(8).now_or_never().unwrap().unwrap(); - // Receive only 1 item. - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // The sink state should be ahead of the stream by 1 item, which is yet - // to be yielded in a `poll_next` by the stream. - assert_eq!(sink.last_request, 9); - assert_eq!(sink.received_ack, 6); - assert_eq!(stream.items_processed, 6); - assert_eq!(stream.last_received, 8); - items.push_back(item); - tickets.push_back(ticket); - // Drop a ticket. - let _ = tickets.pop_front(); - // Receive the other item. Also send the ACK with this poll. - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // Ensure the stream state has been updated. - assert_eq!(stream.items_processed, 7); - assert_eq!(stream.last_received, 9); - items.push_back(item); - tickets.push_back(ticket); - - // The stream should have received all of these items. - assert_eq!(items, [0, 1, 2, 3, 4, 5, 6, 7, 8]); - - // Now send 2 more items to occupy all available capacity in the sink. - sink.send(9).now_or_never().unwrap().unwrap(); - // The sink should have received the latest ACK with this poll, so - // we check it against the stream one to ensure correctness. - assert_eq!(sink.received_ack, stream.items_processed); - sink.send(10).now_or_never().unwrap().unwrap(); - // Make sure we reached full capacity in the sink state. - assert_eq!(sink.last_request, sink.received_ack + WINDOW_SIZE + 1); - // Sending a new item should return `Poll::Pending`. - assert!(sink.send(9).now_or_never().is_none()); + // // Our main communications channel is emulated by a tokio channel. We send `u16`s as data. + // let (sender, receiver) = tokio::sync::mpsc::channel::>(u16::MAX as usize); + + // let (ack_sender, clean_ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + + // let ack_receiver_stream = + // ReceiverStream::new(clean_ack_receiver).map(|ack| io::Result::Ok(ack)); + + // let mut sink = BackpressuredSink::new( + // PollSender::new(sender), + // ReceiverStream::new(ack_receiver_stream), + // WINDOW_SIZE, + // ); + + // // Our main data stream is infallible (FIXME: Just sent `Ok` instead). + // let stream = ReceiverStream::new(receiver); + // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // // Fill up sink to capacity of the channel. + // for i in 0..=WINDOW_SIZE { + // sink.send(Ok(i as u16)).now_or_never().unwrap().unwrap(); + // } + + // let mut items = VecDeque::new(); + // let mut tickets = VecDeque::new(); + + // // Receive the items along with their tickets. + // for _ in 0..=WINDOW_SIZE { + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // items.push_back(item); + // tickets.push_back(ticket); + // } + + // // Make room for 2 more items. + // let _ = tickets.pop_front(); + // let _ = tickets.pop_front(); + // // Send the ACKs to the sink by polling the stream. + // assert!(stream.next().now_or_never().is_none()); + // assert_eq!(stream.last_received, 4); + // assert_eq!(stream.items_processed, 2); + // // Send another item. Even though at this point in the stream state + // // all capacity is used, the next poll will receive an ACK for 2 items. + // assert_eq!(sink.last_request, 4); + // assert_eq!(sink.received_ack, 0); + // sink.send(4).now_or_never().unwrap().unwrap(); + // // Make sure we received the ACK and we recorded the send. + // assert_eq!(sink.last_request, 5); + // assert_eq!(sink.received_ack, 2); + // assert_eq!(stream.items_processed, 2); + // // Send another item to fill up the capacity again. + // sink.send(5).now_or_never().unwrap().unwrap(); + // assert_eq!(sink.last_request, 6); + + // // Receive both items. + // for _ in 0..2 { + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // items.push_back(item); + // tickets.push_back(ticket); + // } + // // At this point both the sink and stream should reflect the same + // // state. + // assert_eq!(sink.last_request, 6); + // assert_eq!(sink.received_ack, 2); + // assert_eq!(stream.last_received, 6); + // assert_eq!(stream.items_processed, 2); + // // Drop all tickets. + // for _ in 0..=WINDOW_SIZE { + // let _ = tickets.pop_front(); + // } + // // Send the ACKs to the sink by polling the stream. + // assert!(stream.next().now_or_never().is_none()); + // // Make sure the stream state reflects the sent ACKs. + // assert_eq!(stream.items_processed, 6); + // // Send another item. + // sink.send(6).now_or_never().unwrap().unwrap(); + // assert_eq!(sink.received_ack, 6); + // assert_eq!(sink.last_request, 7); + // // Receive the item. + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // // At this point both the sink and stream should reflect the same + // // state. + // assert_eq!(stream.items_processed, 6); + // assert_eq!(stream.last_received, 7); + // items.push_back(item); + // tickets.push_back(ticket); + + // // Send 2 items. + // sink.send(7).now_or_never().unwrap().unwrap(); + // sink.send(8).now_or_never().unwrap().unwrap(); + // // Receive only 1 item. + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // // The sink state should be ahead of the stream by 1 item, which is yet + // // to be yielded in a `poll_next` by the stream. + // assert_eq!(sink.last_request, 9); + // assert_eq!(sink.received_ack, 6); + // assert_eq!(stream.items_processed, 6); + // assert_eq!(stream.last_received, 8); + // items.push_back(item); + // tickets.push_back(ticket); + // // Drop a ticket. + // let _ = tickets.pop_front(); + // // Receive the other item. Also send the ACK with this poll. + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // // Ensure the stream state has been updated. + // assert_eq!(stream.items_processed, 7); + // assert_eq!(stream.last_received, 9); + // items.push_back(item); + // tickets.push_back(ticket); + + // // The stream should have received all of these items. + // assert_eq!(items, [0, 1, 2, 3, 4, 5, 6, 7, 8]); + + // // Now send 2 more items to occupy all available capacity in the sink. + // sink.send(9).now_or_never().unwrap().unwrap(); + // // The sink should have received the latest ACK with this poll, so + // // we check it against the stream one to ensure correctness. + // assert_eq!(sink.received_ack, stream.items_processed); + // sink.send(10).now_or_never().unwrap().unwrap(); + // // Make sure we reached full capacity in the sink state. + // assert_eq!(sink.last_request, sink.received_ack + WINDOW_SIZE + 1); + // // Sending a new item should return `Poll::Pending`. + // assert!(sink.send(9).now_or_never().is_none()); } #[test] fn backpressured_sink_premature_ack_kills_stream() { let Fixtures { - ack_sender, mut bp, .. + mut ack_sink, + mut bp, + .. } = Fixtures::new(); bp.encode_and_send('A').now_or_never().unwrap().unwrap(); bp.encode_and_send('B').now_or_never().unwrap().unwrap(); - ack_sender.send(3).unwrap(); + ack_sink.send(3).now_or_never().unwrap().unwrap(); assert!(matches!( bp.encode_and_send('C').now_or_never(), @@ -755,20 +795,22 @@ mod tests { // `last_request` - `window_size`, so an ACK out of range is a // duplicate. let Fixtures { - ack_sender, mut bp, .. + mut ack_sink, + mut bp, + .. } = Fixtures::new(); bp.encode_and_send('A').now_or_never().unwrap().unwrap(); bp.encode_and_send('B').now_or_never().unwrap().unwrap(); // Out of order ACKs work. - ack_sender.send(2).unwrap(); - ack_sender.send(1).unwrap(); + ack_sink.send(2).now_or_never().unwrap().unwrap(); + ack_sink.send(1).now_or_never().unwrap().unwrap(); // Send 3 more items to make it 5 in total. bp.encode_and_send('C').now_or_never().unwrap().unwrap(); bp.encode_and_send('D').now_or_never().unwrap().unwrap(); bp.encode_and_send('E').now_or_never().unwrap().unwrap(); // Send a duplicate ACK of 1, which is outside the allowed range. - ack_sender.send(1).unwrap(); + ack_sink.send(1).now_or_never().unwrap().unwrap(); assert!(matches!( bp.encode_and_send('F').now_or_never(), @@ -779,382 +821,382 @@ mod tests { )); } - #[tokio::test] - async fn backpressured_sink_concurrent_tasks() { - let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - let (sink, receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); - let ack_stream = UnboundedReceiverStream::new(ack_receiver); - let mut sink = BackpressuredSink::new(PollSender::new(sink), ack_stream, WINDOW_SIZE); - - let send_fut = tokio::spawn(async move { - for item in to_send.iter() { - // Try to feed each item into the sink. - if sink.feed(*item).await.is_err() { - // When `feed` fails, the sink is full, so we flush it. - sink.flush().await.unwrap(); - // After flushing, the sink must be able to accept new items. - sink.feed(*item).await.unwrap(); - } - } - // Close the sink here to signal the end of the stream on the other end. - sink.close().await.unwrap(); - // Return the sink so we don't drop the ACK sending end yet. - sink - }); - - let recv_fut = tokio::spawn(async move { - let mut item_stream = ReceiverStream::new(receiver); - let mut items: Vec = vec![]; - while let Some(item) = item_stream.next().await { - // Receive each item sent by the sink. - items.push(item); - // Send the ACK for it. - ack_sender.send(items.len().try_into().unwrap()).unwrap(); - } - items - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - assert_eq!( - recv_result.unwrap(), - (0..u16::MAX).into_iter().rev().collect::>() - ); - } - - #[tokio::test] - async fn backpressured_roundtrip_concurrent_tasks() { - let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); - - let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - let mut sink: BackpressuredSink, ReceiverStream, u16> = - BackpressuredSink::new( - PollSender::new(sink), - ReceiverStream::new(ack_receiver), - WINDOW_SIZE, - ); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - let send_fut = tokio::spawn(async move { - for item in to_send.iter() { - // Try to feed each item into the sink. - if sink.feed(*item).await.is_err() { - // When `feed` fails, the sink is full, so we flush it. - sink.flush().await.unwrap(); - // After flushing, the sink must be able to accept new items. - match sink.feed(*item).await { - Err(BackpressureError::AckStreamClosed) => { - return sink; - } - Ok(_) => {} - Err(e) => { - panic!("Error on sink send: {}", e); - } - } - } - } - // Close the sink here to signal the end of the stream on the other end. - sink.close().await.unwrap(); - // Return the sink so we don't drop the ACK sending end yet. - sink - }); - - let recv_fut = tokio::spawn(async move { - let mut items: Vec = vec![]; - while let Some(next) = stream.next().await { - let (item, ticket) = next.unwrap(); - // Receive each item sent by the sink. - items.push(item); - // Make sure to drop the ticket after processing. - drop(ticket); - } - items - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - assert_eq!( - recv_result.unwrap(), - (0..u16::MAX).into_iter().rev().collect::>() - ); - } - - #[tokio::test] - async fn backpressured_stream_concurrent_tasks() { - let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); - let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - let send_fut = tokio::spawn(async move { - // Try to push the limit on the backpressured stream by always keeping - // its buffer full. - let mut window_len = WINDOW_SIZE + 1; - let mut last_ack = 0; - for item in to_send.iter() { - // If we don't have any more room left to send, - // we look for ACKs. - if window_len == 0 { - let ack = { - // We need at least one ACK to continue, but we may have - // received more, so try to read everything we've got - // so far. - let mut ack = ack_receiver.recv().await.unwrap(); - while let Ok(new_ack) = ack_receiver.try_recv() { - ack = new_ack; - } - ack - }; - // Update our window with the new capacity and the latest ACK. - window_len += ack - last_ack; - last_ack = ack; - } - // Consume window capacity and send the item. - sink.send(*item).await.unwrap(); - window_len -= 1; - } - // Yield the ACK receiving end so it doesn't get dropped before the - // stream sends everything but drop the sink so that we signal the - // end of the stream. - ack_receiver - }); - - let recv_fut = tokio::spawn(async move { - let mut items: Vec = vec![]; - while let Some(next) = stream.next().await { - let (item, ticket) = next.unwrap(); - // Receive each item sent by the sink. - items.push(item); - // Make sure to drop the ticket after processing. - drop(ticket); - } - items - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - assert_eq!( - recv_result.unwrap(), - (0..u16::MAX).into_iter().rev().collect::>() - ); - } - - #[tokio::test] - async fn backpressured_stream_hold_ticket_concurrent_tasks() { - let to_send: Vec = (0..u8::MAX).into_iter().rev().collect(); - let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); - let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - let send_fut = tokio::spawn(async move { - // Try to push the limit on the backpressured stream by always keeping - // its buffer full. - let mut window_len = WINDOW_SIZE + 1; - let mut last_ack = 0; - for item in to_send.iter() { - // If we don't have any more room left to send, - // we look for ACKs. - if window_len == 0 { - let ack = { - // We need at least one ACK to continue, but we may have - // received more, so try to read everything we've got - // so far. - let mut ack = loop { - let ack = ack_receiver.recv().await.unwrap(); - if ack > last_ack { - break ack; - } - }; - while let Ok(new_ack) = ack_receiver.try_recv() { - ack = std::cmp::max(new_ack, ack); - } - ack - }; - // Update our window with the new capacity and the latest ACK. - window_len += ack - last_ack; - last_ack = ack; - } - // Consume window capacity and send the item. - sink.send(*item).await.unwrap(); - window_len -= 1; - } - // Yield the ACK receiving end so it doesn't get dropped before the - // stream sends everything but drop the sink so that we signal the - // end of the stream. - ack_receiver - }); - - let recv_fut = tokio::spawn(async move { - let mut items: Vec = vec![]; - let mut handles = vec![]; - while let Some(next) = stream.next().await { - let (item, ticket) = next.unwrap(); - // Receive each item sent by the sink. - items.push(item); - // Randomness factor. - let factor = items.len(); - // We will have separate threads do the processing here - // while we keep trying to receive items. - let handle = std::thread::spawn(move || { - // Simulate the processing by sleeping for an - // arbitrary amount of time. - std::thread::sleep(std::time::Duration::from_micros(10 * (factor as u64 % 3))); - // Release the ticket to signal the end of processing. - // ticket.release().now_or_never().unwrap(); - drop(ticket); - }); - handles.push(handle); - // If we have too many open threads, join on them and - // drop the handles to avoid running out of resources. - if handles.len() == WINDOW_SIZE as usize { - for handle in handles.drain(..) { - handle.join().unwrap(); - } - } - } - // Join any remaining handles. - for handle in handles { - handle.join().unwrap(); - } - items - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - assert_eq!( - recv_result.unwrap(), - (0..u8::MAX).into_iter().rev().collect::>() - ); - } - - #[tokio::test] - async fn backpressured_stream_item_overflow() { - // `WINDOW_SIZE + 1` elements are allowed to be in flight at a single - // point in time, so we need one more element to be able to overflow - // the stream. - let to_send: Vec = (0..WINDOW_SIZE as u16 + 2).into_iter().rev().collect(); - let (sink, stream) = tokio::sync::mpsc::channel::(to_send.len()); - let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(to_send.len()); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - let send_fut = tokio::spawn(async move { - for item in to_send.iter() { - // Disregard the ACKs, keep sending to overflow the stream. - if let Err(_) = sink.send(*item).await { - // The stream should close when we overflow it, so at some - // point we will receive an error when trying to send items. - break; - } - } - ack_receiver - }); - - let recv_fut = tokio::spawn(async move { - let mut items: Vec = vec![]; - let mut tickets: Vec = vec![]; - while let Some(next) = stream.next().await { - match next { - Ok((item, ticket)) => { - // Receive each item sent by the sink. - items.push(item); - // Hold the tickets so we don't release capacity. - tickets.push(ticket); - } - Err(BackpressuredStreamError::ItemOverflow) => { - // Make sure we got this error right as the stream was - // about to exceed capacity. - assert_eq!(items.len(), WINDOW_SIZE as usize + 1); - return None; - } - Err(err) => { - panic!("Unexpected error: {}", err); - } - } - } - Some(items) - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - // Ensure the stream yielded an error. - assert!(recv_result.unwrap().is_none()); - } - - #[test] - fn backpressured_stream_ack_clogging() { - let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); - let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut clogged_ack_sink = BufferingClogAdapter::new(PollSender::new(ack_sender)); - clogged_ack_sink.set_clogged(true); - let mut stream = BackpressuredStream::new(stream, clogged_ack_sink, WINDOW_SIZE); - - // The first four attempts at `window_size = 3` should succeed. - sink.send(0).now_or_never().unwrap().unwrap(); - sink.send(1).now_or_never().unwrap().unwrap(); - sink.send(2).now_or_never().unwrap().unwrap(); - sink.send(3).now_or_never().unwrap().unwrap(); - - let mut items = VecDeque::new(); - let mut tickets = VecDeque::new(); - // Receive the 4 items we sent along with their tickets. - for _ in 0..4 { - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - } - // Drop a ticket, making room for one more item. - let _ = tickets.pop_front(); - // Ensure no ACK was received since the sink is clogged. - assert!(ack_receiver.recv().now_or_never().is_none()); - // Ensure polling the stream returns pending. - assert!(stream.next().now_or_never().is_none()); - assert!(ack_receiver.recv().now_or_never().is_none()); - - // Send a new item because now we should have capacity. - sink.send(4).now_or_never().unwrap().unwrap(); - // Receive the item along with the ticket. - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - - // Unclog the ACK sink. This should let 1 ACK finally flush. - stream.ack_sink.set_clogged(false); - // Drop another ticket. - let _ = tickets.pop_front(); - // Send a new item with the capacity from the second ticket drop. - sink.send(5).now_or_never().unwrap().unwrap(); - // Receive the item from the stream. - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - assert_eq!(ack_receiver.recv().now_or_never().unwrap().unwrap(), 2); - assert!(ack_receiver.recv().now_or_never().is_none()); - } + // #[tokio::test] + // async fn backpressured_sink_concurrent_tasks() { + // let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + // let (sink, receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + // let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); + // let ack_stream = UnboundedReceiverStream::new(ack_receiver); + // let mut sink = BackpressuredSink::new(PollSender::new(sink), ack_stream, WINDOW_SIZE); + + // let send_fut = tokio::spawn(async move { + // for item in to_send.iter() { + // // Try to feed each item into the sink. + // if sink.feed(*item).await.is_err() { + // // When `feed` fails, the sink is full, so we flush it. + // sink.flush().await.unwrap(); + // // After flushing, the sink must be able to accept new items. + // sink.feed(*item).await.unwrap(); + // } + // } + // // Close the sink here to signal the end of the stream on the other end. + // sink.close().await.unwrap(); + // // Return the sink so we don't drop the ACK sending end yet. + // sink + // }); + + // let recv_fut = tokio::spawn(async move { + // let mut item_stream = ReceiverStream::new(receiver); + // let mut items: Vec = vec![]; + // while let Some(item) = item_stream.next().await { + // // Receive each item sent by the sink. + // items.push(item); + // // Send the ACK for it. + // ack_sender.send(items.len().try_into().unwrap()).unwrap(); + // } + // items + // }); + + // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + // assert!(send_result.is_ok()); + // assert_eq!( + // recv_result.unwrap(), + // (0..u16::MAX).into_iter().rev().collect::>() + // ); + // } + + // #[tokio::test] + // async fn backpressured_roundtrip_concurrent_tasks() { + // let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + // let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); + + // let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + // let mut sink: BackpressuredSink, ReceiverStream, u16> = + // BackpressuredSink::new( + // PollSender::new(sink), + // ReceiverStream::new(ack_receiver), + // WINDOW_SIZE, + // ); + + // let stream = ReceiverStream::new(stream).map(|item| { + // let res: Result = Ok(item); + // res + // }); + // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // let send_fut = tokio::spawn(async move { + // for item in to_send.iter() { + // // Try to feed each item into the sink. + // if sink.feed(*item).await.is_err() { + // // When `feed` fails, the sink is full, so we flush it. + // sink.flush().await.unwrap(); + // // After flushing, the sink must be able to accept new items. + // match sink.feed(*item).await { + // Err(BackpressureError::AckStreamClosed) => { + // return sink; + // } + // Ok(_) => {} + // Err(e) => { + // panic!("Error on sink send: {}", e); + // } + // } + // } + // } + // // Close the sink here to signal the end of the stream on the other end. + // sink.close().await.unwrap(); + // // Return the sink so we don't drop the ACK sending end yet. + // sink + // }); + + // let recv_fut = tokio::spawn(async move { + // let mut items: Vec = vec![]; + // while let Some(next) = stream.next().await { + // let (item, ticket) = next.unwrap(); + // // Receive each item sent by the sink. + // items.push(item); + // // Make sure to drop the ticket after processing. + // drop(ticket); + // } + // items + // }); + + // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + // assert!(send_result.is_ok()); + // assert_eq!( + // recv_result.unwrap(), + // (0..u16::MAX).into_iter().rev().collect::>() + // ); + // } + + // #[tokio::test] + // async fn backpressured_stream_concurrent_tasks() { + // let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + // let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); + // let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); + + // let stream = ReceiverStream::new(stream).map(|item| { + // let res: Result = Ok(item); + // res + // }); + // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // let send_fut = tokio::spawn(async move { + // // Try to push the limit on the backpressured stream by always keeping + // // its buffer full. + // let mut window_len = WINDOW_SIZE + 1; + // let mut last_ack = 0; + // for item in to_send.iter() { + // // If we don't have any more room left to send, + // // we look for ACKs. + // if window_len == 0 { + // let ack = { + // // We need at least one ACK to continue, but we may have + // // received more, so try to read everything we've got + // // so far. + // let mut ack = ack_receiver.recv().await.unwrap(); + // while let Ok(new_ack) = ack_receiver.try_recv() { + // ack = new_ack; + // } + // ack + // }; + // // Update our window with the new capacity and the latest ACK. + // window_len += ack - last_ack; + // last_ack = ack; + // } + // // Consume window capacity and send the item. + // sink.send(*item).await.unwrap(); + // window_len -= 1; + // } + // // Yield the ACK receiving end so it doesn't get dropped before the + // // stream sends everything but drop the sink so that we signal the + // // end of the stream. + // ack_receiver + // }); + + // let recv_fut = tokio::spawn(async move { + // let mut items: Vec = vec![]; + // while let Some(next) = stream.next().await { + // let (item, ticket) = next.unwrap(); + // // Receive each item sent by the sink. + // items.push(item); + // // Make sure to drop the ticket after processing. + // drop(ticket); + // } + // items + // }); + + // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + // assert!(send_result.is_ok()); + // assert_eq!( + // recv_result.unwrap(), + // (0..u16::MAX).into_iter().rev().collect::>() + // ); + // } + + // #[tokio::test] + // async fn backpressured_stream_hold_ticket_concurrent_tasks() { + // let to_send: Vec = (0..u8::MAX).into_iter().rev().collect(); + // let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); + // let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); + + // let stream = ReceiverStream::new(stream).map(|item| { + // let res: Result = Ok(item); + // res + // }); + // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // let send_fut = tokio::spawn(async move { + // // Try to push the limit on the backpressured stream by always keeping + // // its buffer full. + // let mut window_len = WINDOW_SIZE + 1; + // let mut last_ack = 0; + // for item in to_send.iter() { + // // If we don't have any more room left to send, + // // we look for ACKs. + // if window_len == 0 { + // let ack = { + // // We need at least one ACK to continue, but we may have + // // received more, so try to read everything we've got + // // so far. + // let mut ack = loop { + // let ack = ack_receiver.recv().await.unwrap(); + // if ack > last_ack { + // break ack; + // } + // }; + // while let Ok(new_ack) = ack_receiver.try_recv() { + // ack = std::cmp::max(new_ack, ack); + // } + // ack + // }; + // // Update our window with the new capacity and the latest ACK. + // window_len += ack - last_ack; + // last_ack = ack; + // } + // // Consume window capacity and send the item. + // sink.send(*item).await.unwrap(); + // window_len -= 1; + // } + // // Yield the ACK receiving end so it doesn't get dropped before the + // // stream sends everything but drop the sink so that we signal the + // // end of the stream. + // ack_receiver + // }); + + // let recv_fut = tokio::spawn(async move { + // let mut items: Vec = vec![]; + // let mut handles = vec![]; + // while let Some(next) = stream.next().await { + // let (item, ticket) = next.unwrap(); + // // Receive each item sent by the sink. + // items.push(item); + // // Randomness factor. + // let factor = items.len(); + // // We will have separate threads do the processing here + // // while we keep trying to receive items. + // let handle = std::thread::spawn(move || { + // // Simulate the processing by sleeping for an + // // arbitrary amount of time. + // std::thread::sleep(std::time::Duration::from_micros(10 * (factor as u64 % 3))); + // // Release the ticket to signal the end of processing. + // // ticket.release().now_or_never().unwrap(); + // drop(ticket); + // }); + // handles.push(handle); + // // If we have too many open threads, join on them and + // // drop the handles to avoid running out of resources. + // if handles.len() == WINDOW_SIZE as usize { + // for handle in handles.drain(..) { + // handle.join().unwrap(); + // } + // } + // } + // // Join any remaining handles. + // for handle in handles { + // handle.join().unwrap(); + // } + // items + // }); + + // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + // assert!(send_result.is_ok()); + // assert_eq!( + // recv_result.unwrap(), + // (0..u8::MAX).into_iter().rev().collect::>() + // ); + // } + + // #[tokio::test] + // async fn backpressured_stream_item_overflow() { + // // `WINDOW_SIZE + 1` elements are allowed to be in flight at a single + // // point in time, so we need one more element to be able to overflow + // // the stream. + // let to_send: Vec = (0..WINDOW_SIZE as u16 + 2).into_iter().rev().collect(); + // let (sink, stream) = tokio::sync::mpsc::channel::(to_send.len()); + // let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(to_send.len()); + + // let stream = ReceiverStream::new(stream).map(|item| { + // let res: Result = Ok(item); + // res + // }); + // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); + + // let send_fut = tokio::spawn(async move { + // for item in to_send.iter() { + // // Disregard the ACKs, keep sending to overflow the stream. + // if let Err(_) = sink.send(*item).await { + // // The stream should close when we overflow it, so at some + // // point we will receive an error when trying to send items. + // break; + // } + // } + // ack_receiver + // }); + + // let recv_fut = tokio::spawn(async move { + // let mut items: Vec = vec![]; + // let mut tickets: Vec = vec![]; + // while let Some(next) = stream.next().await { + // match next { + // Ok((item, ticket)) => { + // // Receive each item sent by the sink. + // items.push(item); + // // Hold the tickets so we don't release capacity. + // tickets.push(ticket); + // } + // Err(BackpressuredStreamError::ItemOverflow) => { + // // Make sure we got this error right as the stream was + // // about to exceed capacity. + // assert_eq!(items.len(), WINDOW_SIZE as usize + 1); + // return None; + // } + // Err(err) => { + // panic!("Unexpected error: {}", err); + // } + // } + // } + // Some(items) + // }); + + // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + // assert!(send_result.is_ok()); + // // Ensure the stream yielded an error. + // assert!(recv_result.unwrap().is_none()); + // } + + // #[test] + // fn backpressured_stream_ack_clogging() { + // let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); + // let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); + + // let stream = ReceiverStream::new(stream).map(|item| { + // let res: Result = Ok(item); + // res + // }); + // let mut clogged_ack_sink = BufferingClogAdapter::new(PollSender::new(ack_sender)); + // clogged_ack_sink.set_clogged(true); + // let mut stream = BackpressuredStream::new(stream, clogged_ack_sink, WINDOW_SIZE); + + // // The first four attempts at `window_size = 3` should succeed. + // sink.send(0).now_or_never().unwrap().unwrap(); + // sink.send(1).now_or_never().unwrap().unwrap(); + // sink.send(2).now_or_never().unwrap().unwrap(); + // sink.send(3).now_or_never().unwrap().unwrap(); + + // let mut items = VecDeque::new(); + // let mut tickets = VecDeque::new(); + // // Receive the 4 items we sent along with their tickets. + // for _ in 0..4 { + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // items.push_back(item); + // tickets.push_back(ticket); + // } + // // Drop a ticket, making room for one more item. + // let _ = tickets.pop_front(); + // // Ensure no ACK was received since the sink is clogged. + // assert!(ack_receiver.recv().now_or_never().is_none()); + // // Ensure polling the stream returns pending. + // assert!(stream.next().now_or_never().is_none()); + // assert!(ack_receiver.recv().now_or_never().is_none()); + + // // Send a new item because now we should have capacity. + // sink.send(4).now_or_never().unwrap().unwrap(); + // // Receive the item along with the ticket. + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // items.push_back(item); + // tickets.push_back(ticket); + + // // Unclog the ACK sink. This should let 1 ACK finally flush. + // stream.ack_sink.set_clogged(false); + // // Drop another ticket. + // let _ = tickets.pop_front(); + // // Send a new item with the capacity from the second ticket drop. + // sink.send(5).now_or_never().unwrap().unwrap(); + // // Receive the item from the stream. + // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); + // items.push_back(item); + // tickets.push_back(ticket); + // assert_eq!(ack_receiver.recv().now_or_never().unwrap().unwrap(), 2); + // assert!(ack_receiver.recv().now_or_never().is_none()); + // } } From aa8843b343d027910839e52a469f042ff9eeb415 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Oct 2022 15:08:22 +0100 Subject: [PATCH 208/735] muxink: Update complex backpressure test to work with fallible ACK streams --- muxink/src/backpressured.rs | 318 ++++++++++++++++++++---------------- 1 file changed, 178 insertions(+), 140 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 241bfc4780..cfd48638a6 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -459,6 +459,7 @@ mod tests { use tokio_util::sync::PollSender; use crate::testing::{ + collect_buf, collect_bufs, encoding::EncodeAndSend, testing_sink::{BufferingClogAdapter, TestingSink, TestingSinkRef}, }; @@ -487,20 +488,10 @@ mod tests { (sink, stream) } - // Backpressure requirements - // impl Sink for BackpressuredSink - // where - // S: Sink + Unpin, - // Self: Unpin, - // A: Stream> + Unpin, - // AckErr: std::error::Error, - // >::Error: std::error::Error, - /// A common set of fixtures used in the backpressure tests. /// /// The fixtures represent what a server holds when dealing with a backpressured client. - - struct Fixtures { + struct OneWayFixtures { /// A sender for ACKs back to the client. ack_sink: Box + Unpin>, /// The clients sink for requests, with no backpressure wrapper. Used for retrieving the @@ -514,7 +505,7 @@ mod tests { >, } - impl Fixtures { + impl OneWayFixtures { /// Creates a new set of fixtures. fn new() -> Self { let sink = Arc::new(TestingSink::new()); @@ -532,13 +523,52 @@ mod tests { } } + /// A more complicated setup for testing backpressure that allows accessing both sides of the backpressured connection. + /// + /// The resulting `client` sends byte frames across to the `server`, with ACKs flowing through + /// the associated ACK pipe. + struct TwoWayFixtures { + client: BackpressuredSink< + Box + Unpin>, + Box> + Unpin>, + Bytes, + >, + server: BackpressuredStream< + Box> + Unpin>, + Box + Unpin>, + Bytes, + >, + } + + impl TwoWayFixtures { + fn new(size: usize) -> Self { + let (sink, stream) = setup_io_pipe::(size); + + let (ack_sink, ack_stream) = setup_io_pipe::(size); + + let boxed_sink: Box + Unpin + 'static> = + Box::new(sink); + let boxed_ack_stream: Box> + Unpin> = + Box::new(ack_stream); + + let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, WINDOW_SIZE); + + let boxed_stream: Box> + Unpin> = + Box::new(stream); + let boxed_ack_sink: Box + Unpin> = Box::new(ack_sink); + let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, WINDOW_SIZE); + + TwoWayFixtures { client, server } + } + } + #[test] fn backpressured_sink_lifecycle() { - let Fixtures { + let OneWayFixtures { mut ack_sink, sink, mut bp, - } = Fixtures::new(); + } = OneWayFixtures::new(); // The first four attempts at `window_size = 3` should succeed. bp.encode_and_send('A').now_or_never().unwrap().unwrap(); @@ -640,137 +670,145 @@ mod tests { #[test] fn backpressured_roundtrip() { - // // Our main communications channel is emulated by a tokio channel. We send `u16`s as data. - // let (sender, receiver) = tokio::sync::mpsc::channel::>(u16::MAX as usize); - - // let (ack_sender, clean_ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - - // let ack_receiver_stream = - // ReceiverStream::new(clean_ack_receiver).map(|ack| io::Result::Ok(ack)); - - // let mut sink = BackpressuredSink::new( - // PollSender::new(sender), - // ReceiverStream::new(ack_receiver_stream), - // WINDOW_SIZE, - // ); - - // // Our main data stream is infallible (FIXME: Just sent `Ok` instead). - // let stream = ReceiverStream::new(receiver); - // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // // Fill up sink to capacity of the channel. - // for i in 0..=WINDOW_SIZE { - // sink.send(Ok(i as u16)).now_or_never().unwrap().unwrap(); - // } - - // let mut items = VecDeque::new(); - // let mut tickets = VecDeque::new(); - - // // Receive the items along with their tickets. - // for _ in 0..=WINDOW_SIZE { - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // items.push_back(item); - // tickets.push_back(ticket); - // } - - // // Make room for 2 more items. - // let _ = tickets.pop_front(); - // let _ = tickets.pop_front(); - // // Send the ACKs to the sink by polling the stream. - // assert!(stream.next().now_or_never().is_none()); - // assert_eq!(stream.last_received, 4); - // assert_eq!(stream.items_processed, 2); - // // Send another item. Even though at this point in the stream state - // // all capacity is used, the next poll will receive an ACK for 2 items. - // assert_eq!(sink.last_request, 4); - // assert_eq!(sink.received_ack, 0); - // sink.send(4).now_or_never().unwrap().unwrap(); - // // Make sure we received the ACK and we recorded the send. - // assert_eq!(sink.last_request, 5); - // assert_eq!(sink.received_ack, 2); - // assert_eq!(stream.items_processed, 2); - // // Send another item to fill up the capacity again. - // sink.send(5).now_or_never().unwrap().unwrap(); - // assert_eq!(sink.last_request, 6); - - // // Receive both items. - // for _ in 0..2 { - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // items.push_back(item); - // tickets.push_back(ticket); - // } - // // At this point both the sink and stream should reflect the same - // // state. - // assert_eq!(sink.last_request, 6); - // assert_eq!(sink.received_ack, 2); - // assert_eq!(stream.last_received, 6); - // assert_eq!(stream.items_processed, 2); - // // Drop all tickets. - // for _ in 0..=WINDOW_SIZE { - // let _ = tickets.pop_front(); - // } - // // Send the ACKs to the sink by polling the stream. - // assert!(stream.next().now_or_never().is_none()); - // // Make sure the stream state reflects the sent ACKs. - // assert_eq!(stream.items_processed, 6); - // // Send another item. - // sink.send(6).now_or_never().unwrap().unwrap(); - // assert_eq!(sink.received_ack, 6); - // assert_eq!(sink.last_request, 7); - // // Receive the item. - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // // At this point both the sink and stream should reflect the same - // // state. - // assert_eq!(stream.items_processed, 6); - // assert_eq!(stream.last_received, 7); - // items.push_back(item); - // tickets.push_back(ticket); - - // // Send 2 items. - // sink.send(7).now_or_never().unwrap().unwrap(); - // sink.send(8).now_or_never().unwrap().unwrap(); - // // Receive only 1 item. - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // // The sink state should be ahead of the stream by 1 item, which is yet - // // to be yielded in a `poll_next` by the stream. - // assert_eq!(sink.last_request, 9); - // assert_eq!(sink.received_ack, 6); - // assert_eq!(stream.items_processed, 6); - // assert_eq!(stream.last_received, 8); - // items.push_back(item); - // tickets.push_back(ticket); - // // Drop a ticket. - // let _ = tickets.pop_front(); - // // Receive the other item. Also send the ACK with this poll. - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // // Ensure the stream state has been updated. - // assert_eq!(stream.items_processed, 7); - // assert_eq!(stream.last_received, 9); - // items.push_back(item); - // tickets.push_back(ticket); - - // // The stream should have received all of these items. - // assert_eq!(items, [0, 1, 2, 3, 4, 5, 6, 7, 8]); - - // // Now send 2 more items to occupy all available capacity in the sink. - // sink.send(9).now_or_never().unwrap().unwrap(); - // // The sink should have received the latest ACK with this poll, so - // // we check it against the stream one to ensure correctness. - // assert_eq!(sink.received_ack, stream.items_processed); - // sink.send(10).now_or_never().unwrap().unwrap(); - // // Make sure we reached full capacity in the sink state. - // assert_eq!(sink.last_request, sink.received_ack + WINDOW_SIZE + 1); - // // Sending a new item should return `Poll::Pending`. - // assert!(sink.send(9).now_or_never().is_none()); + let TwoWayFixtures { + mut client, + mut server, + } = TwoWayFixtures::new(1024); + + // This test assumes a hardcoded window size of 3. + assert_eq!(WINDOW_SIZE, 3); + + // Send just enough requests to max out the receive window of the backpressured channel. + for i in 0..=3u8 { + client.encode_and_send(i).now_or_never().unwrap().unwrap(); + } + + // Sanity check: Attempting to send another item will be refused by the client side's + // limiter to avoid exceeding the allowed window. + assert!(client.encode_and_send(99 as u8).now_or_never().is_none()); + + let mut items = VecDeque::new(); + let mut tickets = VecDeque::new(); + + // Receive the items along with their tickets all at once. + for _ in 0..=WINDOW_SIZE as u8 { + let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + } + + // We simulate the completion of two items by dropping their tickets. + let _ = tickets.pop_front(); + let _ = tickets.pop_front(); + + // Send the ACKs to the client by polling the server. + assert_eq!(server.items_processed, 0); // (Before, the internal channel will not have been polled). + assert_eq!(server.last_received, 4); + assert!(server.next().now_or_never().is_none()); + assert_eq!(server.last_received, 4); + assert_eq!(server.items_processed, 2); + + // Send another item. ACKs will be received at the start, so while it looks like as if we cannot send the item initially, the incoming ACK(2) will fix this. + assert_eq!(client.last_request, 4); + assert_eq!(client.received_ack, 0); + client.encode_and_send(4u8).now_or_never().unwrap().unwrap(); + assert_eq!(client.last_request, 5); + assert_eq!(client.received_ack, 2); + assert_eq!(server.items_processed, 2); + + // Send another item, filling up the entire window again. + client.encode_and_send(5u8).now_or_never().unwrap().unwrap(); + assert_eq!(client.last_request, 6); + + // Receive two additional items. + for _ in 0..2 { + let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); + items.push_back(item); + tickets.push_back(ticket); + } + + // At this point client and server should reflect the same state. + assert_eq!(client.last_request, 6); + assert_eq!(client.received_ack, 2); + assert_eq!(server.last_received, 6); + assert_eq!(server.items_processed, 2); + + // Drop all tickets, marking the work as done. + tickets.clear(); + + // The ACKs have been queued now, send them by polling the server. + assert!(server.next().now_or_never().is_none()); + // Make sure the server state reflects the sent ACKs. + assert_eq!(server.items_processed, 6); + + // Send another item. + client.encode_and_send(6u8).now_or_never().unwrap().unwrap(); + assert_eq!(client.received_ack, 6); + assert_eq!(client.last_request, 7); + + // Receive the item. + let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); + assert_eq!(server.items_processed, 6); + assert_eq!(server.last_received, 7); + items.push_back(item); + tickets.push_back(ticket); + + // Send two items. + client.encode_and_send(7u8).now_or_never().unwrap().unwrap(); + client.encode_and_send(8u8).now_or_never().unwrap().unwrap(); + // Receive only one item. + let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); + // The client state should be ahead of the server by one item, which is yet to be yielded in + // a `poll_next` by the server. + items.push_back(item); + tickets.push_back(ticket); + + // Two items are on the server processing, one is in transit: + assert_eq!(tickets.len(), 2); + assert_eq!(client.last_request, 9); + assert_eq!(client.received_ack, 6); + assert_eq!(server.items_processed, 6); + assert_eq!(server.last_received, 8); + + // Finish processing another item. + let _ = tickets.pop_front(); + // Receive the other item. This will implicitly send the ACK from the popped ticket. + let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); + // Ensure the stream state has been updated. + assert_eq!(server.items_processed, 7); + assert_eq!(server.last_received, 9); + items.push_back(item); + tickets.push_back(ticket); + + // The server should have received all of these items so far. + assert_eq!( + collect_bufs(items.clone().into_iter()), + b"\x00\x01\x02\x03\x04\x05\x06\x07\x08" + ); + + // Now send two more items to occupy the entire window. In between, the client should have + // received the latest ACK with this poll, so we check it against the stream one to ensure + // correctness. + client.encode_and_send(9u8).now_or_never().unwrap().unwrap(); + assert_eq!(client.received_ack, server.items_processed); + client + .encode_and_send(10u8) + .now_or_never() + .unwrap() + .unwrap(); + // Make sure we reached full capacity in the sink state. + assert_eq!(client.last_request, client.received_ack + 3 + 1); + // Sending a new item should return `Poll::Pending`. + assert!(client.encode_and_send(9u8).now_or_never().is_none()); } #[test] fn backpressured_sink_premature_ack_kills_stream() { - let Fixtures { + let OneWayFixtures { mut ack_sink, mut bp, .. - } = Fixtures::new(); + } = OneWayFixtures::new(); bp.encode_and_send('A').now_or_never().unwrap().unwrap(); bp.encode_and_send('B').now_or_never().unwrap().unwrap(); @@ -794,11 +832,11 @@ mod tests { // we must have had ACKs up until at least // `last_request` - `window_size`, so an ACK out of range is a // duplicate. - let Fixtures { + let OneWayFixtures { mut ack_sink, mut bp, .. - } = Fixtures::new(); + } = OneWayFixtures::new(); bp.encode_and_send('A').now_or_never().unwrap().unwrap(); bp.encode_and_send('B').now_or_never().unwrap().unwrap(); From a104b0bd2f807656c1093c63ab06efdf1d90fd73 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Oct 2022 16:05:02 +0100 Subject: [PATCH 209/735] muxink: Convert `backpressued_sink_concurrent_task` test to newer fixtures --- muxink/src/backpressured.rs | 99 +++++++++++++++++----------------- muxink/src/testing/encoding.rs | 37 +++++++++++++ 2 files changed, 87 insertions(+), 49 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index cfd48638a6..ea7f2c9d23 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -460,7 +460,7 @@ mod tests { use crate::testing::{ collect_buf, collect_bufs, - encoding::EncodeAndSend, + encoding::{EncodeAndSend, TestEncodeable}, testing_sink::{BufferingClogAdapter, TestingSink, TestingSinkRef}, }; @@ -529,13 +529,13 @@ mod tests { /// the associated ACK pipe. struct TwoWayFixtures { client: BackpressuredSink< - Box + Unpin>, - Box> + Unpin>, + Box + Send + Unpin>, + Box> + Send + Unpin>, Bytes, >, server: BackpressuredStream< - Box> + Unpin>, - Box + Unpin>, + Box> + Send + Unpin>, + Box + Send + Unpin>, Bytes, >, } @@ -546,16 +546,17 @@ mod tests { let (ack_sink, ack_stream) = setup_io_pipe::(size); - let boxed_sink: Box + Unpin + 'static> = + let boxed_sink: Box + Send + Unpin + 'static> = Box::new(sink); - let boxed_ack_stream: Box> + Unpin> = + let boxed_ack_stream: Box> + Send + Unpin> = Box::new(ack_stream); let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, WINDOW_SIZE); - let boxed_stream: Box> + Unpin> = + let boxed_stream: Box> + Send + Unpin> = Box::new(stream); - let boxed_ack_sink: Box + Unpin> = Box::new(ack_sink); + let boxed_ack_sink: Box + Send + Unpin> = + Box::new(ack_sink); let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, WINDOW_SIZE); TwoWayFixtures { client, server } @@ -859,49 +860,49 @@ mod tests { )); } - // #[tokio::test] - // async fn backpressured_sink_concurrent_tasks() { - // let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - // let (sink, receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - // let (ack_sender, ack_receiver) = tokio::sync::mpsc::unbounded_channel::(); - // let ack_stream = UnboundedReceiverStream::new(ack_receiver); - // let mut sink = BackpressuredSink::new(PollSender::new(sink), ack_stream, WINDOW_SIZE); + #[tokio::test] + async fn backpressured_sink_concurrent_tasks() { + let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - // let send_fut = tokio::spawn(async move { - // for item in to_send.iter() { - // // Try to feed each item into the sink. - // if sink.feed(*item).await.is_err() { - // // When `feed` fails, the sink is full, so we flush it. - // sink.flush().await.unwrap(); - // // After flushing, the sink must be able to accept new items. - // sink.feed(*item).await.unwrap(); - // } - // } - // // Close the sink here to signal the end of the stream on the other end. - // sink.close().await.unwrap(); - // // Return the sink so we don't drop the ACK sending end yet. - // sink - // }); + let TwoWayFixtures { + mut client, + mut server, + } = TwoWayFixtures::new(512); + + let send_fut = tokio::spawn(async move { + for item in to_send.iter() { + // Try to feed each item into the sink. + if client.feed(item.encode()).await.is_err() { + // When `feed` fails, the sink is full, so we flush it. + client.flush().await.unwrap(); + // After flushing, the sink must be able to accept new items. + client.feed(item.encode()).await.unwrap(); + } + } + // Close the sink here to signal the end of the stream on the other end. + client.close().await.unwrap(); + // Return the sink so we don't drop the ACK sending end yet. + client + }); - // let recv_fut = tokio::spawn(async move { - // let mut item_stream = ReceiverStream::new(receiver); - // let mut items: Vec = vec![]; - // while let Some(item) = item_stream.next().await { - // // Receive each item sent by the sink. - // items.push(item); - // // Send the ACK for it. - // ack_sender.send(items.len().try_into().unwrap()).unwrap(); - // } - // items - // }); + let recv_fut = tokio::spawn(async move { + let mut items: Vec = vec![]; + while let Some((item, ticket)) = server.next().await.transpose().unwrap() { + // Receive each item sent by the sink. + items.push(u16::decode(&item)); + // Send the ACK for it. + drop(ticket); + } + items + }); - // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - // assert!(send_result.is_ok()); - // assert_eq!( - // recv_result.unwrap(), - // (0..u16::MAX).into_iter().rev().collect::>() - // ); - // } + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + assert_eq!( + recv_result.unwrap(), + (0..u16::MAX).into_iter().rev().collect::>() + ); + } // #[tokio::test] // async fn backpressured_roundtrip_concurrent_tasks() { diff --git a/muxink/src/testing/encoding.rs b/muxink/src/testing/encoding.rs index 943c5a1356..49a415b1a5 100644 --- a/muxink/src/testing/encoding.rs +++ b/muxink/src/testing/encoding.rs @@ -9,6 +9,8 @@ //! Note that there is no decoding format, as the format is insufficiently framed to allow for easy //! deserialization. +use std::ops::Deref; + use bytes::Bytes; use futures::{Sink, SinkExt}; @@ -18,6 +20,12 @@ pub(crate) trait TestEncodeable { /// /// This function is not terribly efficient, but in test code, it does not have to be. fn encode(&self) -> Bytes; + + /// Decodes a previously encoded value from bytes. + /// + /// The given `raw` buffer must contain exactly the output of a previous `encode` call. + #[inline] + fn decode(raw: &Bytes) -> Self; } impl TestEncodeable for char { @@ -27,6 +35,14 @@ impl TestEncodeable for char { let s = self.encode_utf8(&mut buf); Bytes::from(s.to_string()) } + + fn decode(raw: &Bytes) -> Self { + let s = std::str::from_utf8(&raw).expect("invalid utf8"); + let mut chars = s.chars(); + let c = chars.next().expect("no chars in string"); + assert!(chars.next().is_none()); + c + } } impl TestEncodeable for u8 { @@ -35,6 +51,23 @@ impl TestEncodeable for u8 { let raw: Box<[u8]> = Box::new([*self]); Bytes::from(raw) } + + fn decode(raw: &Bytes) -> Self { + assert_eq!(raw.len(), 1); + raw[0] + } +} + +impl TestEncodeable for u16 { + #[inline] + fn encode(&self) -> Bytes { + let raw: Box<[u8]> = Box::new(self.to_le_bytes()); + Bytes::from(raw) + } + + fn decode(raw: &Bytes) -> Self { + u16::from_le_bytes(raw.deref().try_into().unwrap()) + } } impl TestEncodeable for u32 { @@ -43,6 +76,10 @@ impl TestEncodeable for u32 { let raw: Box<[u8]> = Box::new(self.to_le_bytes()); Bytes::from(raw) } + + fn decode(raw: &Bytes) -> Self { + u32::from_le_bytes(raw.deref().try_into().unwrap()) + } } /// Helper trait for quickly encoding and sending a value. From c0cbe4133b8e803856218bf2d119df807c542bec Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Oct 2022 16:42:06 +0100 Subject: [PATCH 210/735] muxink: Add a test for actual backpressure error behavior --- muxink/src/backpressured.rs | 431 ++++++++------------------------- muxink/src/testing/encoding.rs | 1 - 2 files changed, 96 insertions(+), 336 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index ea7f2c9d23..9a5c922772 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -230,6 +230,7 @@ where /// /// When the stream that created the ticket is dropped before the ticket, the ACK associated with /// the ticket is silently ignored. +#[derive(Debug)] pub struct Ticket { sender: Sender<()>, } @@ -523,7 +524,8 @@ mod tests { } } - /// A more complicated setup for testing backpressure that allows accessing both sides of the backpressured connection. + /// A more complicated setup for testing backpressure that allows accessing both sides of the + /// connection. /// /// The resulting `client` sends byte frames across to the `server`, with ACKs flowing through /// the associated ACK pipe. @@ -541,6 +543,7 @@ mod tests { } impl TwoWayFixtures { + /// Creates a new set of two-way fixtures. fn new(size: usize) -> Self { let (sink, stream) = setup_io_pipe::(size); @@ -860,6 +863,45 @@ mod tests { )); } + #[test] + fn backpressured_sink_exceeding_window_kills_stream() { + let TwoWayFixtures { + mut client, + mut server, + } = TwoWayFixtures::new(512); + + // Fill up the receive window. + for _ in 0..=WINDOW_SIZE { + client.encode_and_send('X').now_or_never().unwrap().unwrap(); + } + + // The "overflow" should be rejected. + assert!(client.encode_and_send('X').now_or_never().is_none()); + + // Deconstruct the client, forcing another packet onto "wire". + let (mut sink, _ack_stream) = client.into_inner(); + + sink.encode_and_send('P').now_or_never().unwrap().unwrap(); + + // Now we can look at the server side. + let mut in_progress = Vec::new(); + for _ in 0..=WINDOW_SIZE { + let received = server.next().now_or_never().unwrap().unwrap(); + let (bytes, ticket) = received.unwrap(); + + // We need to keep the tickets around to simulate the server being busy. + in_progress.push(ticket); + } + + // Now the server should notice that the backpressure limit has been exceeded and return an + // error. + let overflow_err = server.next().now_or_never().unwrap().unwrap().unwrap_err(); + assert!(matches!( + overflow_err, + BackpressuredStreamError::ItemOverflow + )); + } + #[tokio::test] async fn backpressured_sink_concurrent_tasks() { let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); @@ -904,338 +946,57 @@ mod tests { ); } - // #[tokio::test] - // async fn backpressured_roundtrip_concurrent_tasks() { - // let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - // let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); - - // let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - // let mut sink: BackpressuredSink, ReceiverStream, u16> = - // BackpressuredSink::new( - // PollSender::new(sink), - // ReceiverStream::new(ack_receiver), - // WINDOW_SIZE, - // ); - - // let stream = ReceiverStream::new(stream).map(|item| { - // let res: Result = Ok(item); - // res - // }); - // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // let send_fut = tokio::spawn(async move { - // for item in to_send.iter() { - // // Try to feed each item into the sink. - // if sink.feed(*item).await.is_err() { - // // When `feed` fails, the sink is full, so we flush it. - // sink.flush().await.unwrap(); - // // After flushing, the sink must be able to accept new items. - // match sink.feed(*item).await { - // Err(BackpressureError::AckStreamClosed) => { - // return sink; - // } - // Ok(_) => {} - // Err(e) => { - // panic!("Error on sink send: {}", e); - // } - // } - // } - // } - // // Close the sink here to signal the end of the stream on the other end. - // sink.close().await.unwrap(); - // // Return the sink so we don't drop the ACK sending end yet. - // sink - // }); - - // let recv_fut = tokio::spawn(async move { - // let mut items: Vec = vec![]; - // while let Some(next) = stream.next().await { - // let (item, ticket) = next.unwrap(); - // // Receive each item sent by the sink. - // items.push(item); - // // Make sure to drop the ticket after processing. - // drop(ticket); - // } - // items - // }); - - // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - // assert!(send_result.is_ok()); - // assert_eq!( - // recv_result.unwrap(), - // (0..u16::MAX).into_iter().rev().collect::>() - // ); - // } - - // #[tokio::test] - // async fn backpressured_stream_concurrent_tasks() { - // let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - // let (sink, stream) = tokio::sync::mpsc::channel::(u16::MAX as usize); - // let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u16::MAX as usize); - - // let stream = ReceiverStream::new(stream).map(|item| { - // let res: Result = Ok(item); - // res - // }); - // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // let send_fut = tokio::spawn(async move { - // // Try to push the limit on the backpressured stream by always keeping - // // its buffer full. - // let mut window_len = WINDOW_SIZE + 1; - // let mut last_ack = 0; - // for item in to_send.iter() { - // // If we don't have any more room left to send, - // // we look for ACKs. - // if window_len == 0 { - // let ack = { - // // We need at least one ACK to continue, but we may have - // // received more, so try to read everything we've got - // // so far. - // let mut ack = ack_receiver.recv().await.unwrap(); - // while let Ok(new_ack) = ack_receiver.try_recv() { - // ack = new_ack; - // } - // ack - // }; - // // Update our window with the new capacity and the latest ACK. - // window_len += ack - last_ack; - // last_ack = ack; - // } - // // Consume window capacity and send the item. - // sink.send(*item).await.unwrap(); - // window_len -= 1; - // } - // // Yield the ACK receiving end so it doesn't get dropped before the - // // stream sends everything but drop the sink so that we signal the - // // end of the stream. - // ack_receiver - // }); - - // let recv_fut = tokio::spawn(async move { - // let mut items: Vec = vec![]; - // while let Some(next) = stream.next().await { - // let (item, ticket) = next.unwrap(); - // // Receive each item sent by the sink. - // items.push(item); - // // Make sure to drop the ticket after processing. - // drop(ticket); - // } - // items - // }); - - // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - // assert!(send_result.is_ok()); - // assert_eq!( - // recv_result.unwrap(), - // (0..u16::MAX).into_iter().rev().collect::>() - // ); - // } - - // #[tokio::test] - // async fn backpressured_stream_hold_ticket_concurrent_tasks() { - // let to_send: Vec = (0..u8::MAX).into_iter().rev().collect(); - // let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); - // let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); - - // let stream = ReceiverStream::new(stream).map(|item| { - // let res: Result = Ok(item); - // res - // }); - // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // let send_fut = tokio::spawn(async move { - // // Try to push the limit on the backpressured stream by always keeping - // // its buffer full. - // let mut window_len = WINDOW_SIZE + 1; - // let mut last_ack = 0; - // for item in to_send.iter() { - // // If we don't have any more room left to send, - // // we look for ACKs. - // if window_len == 0 { - // let ack = { - // // We need at least one ACK to continue, but we may have - // // received more, so try to read everything we've got - // // so far. - // let mut ack = loop { - // let ack = ack_receiver.recv().await.unwrap(); - // if ack > last_ack { - // break ack; - // } - // }; - // while let Ok(new_ack) = ack_receiver.try_recv() { - // ack = std::cmp::max(new_ack, ack); - // } - // ack - // }; - // // Update our window with the new capacity and the latest ACK. - // window_len += ack - last_ack; - // last_ack = ack; - // } - // // Consume window capacity and send the item. - // sink.send(*item).await.unwrap(); - // window_len -= 1; - // } - // // Yield the ACK receiving end so it doesn't get dropped before the - // // stream sends everything but drop the sink so that we signal the - // // end of the stream. - // ack_receiver - // }); - - // let recv_fut = tokio::spawn(async move { - // let mut items: Vec = vec![]; - // let mut handles = vec![]; - // while let Some(next) = stream.next().await { - // let (item, ticket) = next.unwrap(); - // // Receive each item sent by the sink. - // items.push(item); - // // Randomness factor. - // let factor = items.len(); - // // We will have separate threads do the processing here - // // while we keep trying to receive items. - // let handle = std::thread::spawn(move || { - // // Simulate the processing by sleeping for an - // // arbitrary amount of time. - // std::thread::sleep(std::time::Duration::from_micros(10 * (factor as u64 % 3))); - // // Release the ticket to signal the end of processing. - // // ticket.release().now_or_never().unwrap(); - // drop(ticket); - // }); - // handles.push(handle); - // // If we have too many open threads, join on them and - // // drop the handles to avoid running out of resources. - // if handles.len() == WINDOW_SIZE as usize { - // for handle in handles.drain(..) { - // handle.join().unwrap(); - // } - // } - // } - // // Join any remaining handles. - // for handle in handles { - // handle.join().unwrap(); - // } - // items - // }); - - // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - // assert!(send_result.is_ok()); - // assert_eq!( - // recv_result.unwrap(), - // (0..u8::MAX).into_iter().rev().collect::>() - // ); - // } - - // #[tokio::test] - // async fn backpressured_stream_item_overflow() { - // // `WINDOW_SIZE + 1` elements are allowed to be in flight at a single - // // point in time, so we need one more element to be able to overflow - // // the stream. - // let to_send: Vec = (0..WINDOW_SIZE as u16 + 2).into_iter().rev().collect(); - // let (sink, stream) = tokio::sync::mpsc::channel::(to_send.len()); - // let (ack_sender, ack_receiver) = tokio::sync::mpsc::channel::(to_send.len()); - - // let stream = ReceiverStream::new(stream).map(|item| { - // let res: Result = Ok(item); - // res - // }); - // let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // let send_fut = tokio::spawn(async move { - // for item in to_send.iter() { - // // Disregard the ACKs, keep sending to overflow the stream. - // if let Err(_) = sink.send(*item).await { - // // The stream should close when we overflow it, so at some - // // point we will receive an error when trying to send items. - // break; - // } - // } - // ack_receiver - // }); - - // let recv_fut = tokio::spawn(async move { - // let mut items: Vec = vec![]; - // let mut tickets: Vec = vec![]; - // while let Some(next) = stream.next().await { - // match next { - // Ok((item, ticket)) => { - // // Receive each item sent by the sink. - // items.push(item); - // // Hold the tickets so we don't release capacity. - // tickets.push(ticket); - // } - // Err(BackpressuredStreamError::ItemOverflow) => { - // // Make sure we got this error right as the stream was - // // about to exceed capacity. - // assert_eq!(items.len(), WINDOW_SIZE as usize + 1); - // return None; - // } - // Err(err) => { - // panic!("Unexpected error: {}", err); - // } - // } - // } - // Some(items) - // }); - - // let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - // assert!(send_result.is_ok()); - // // Ensure the stream yielded an error. - // assert!(recv_result.unwrap().is_none()); - // } - - // #[test] - // fn backpressured_stream_ack_clogging() { - // let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); - // let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); - - // let stream = ReceiverStream::new(stream).map(|item| { - // let res: Result = Ok(item); - // res - // }); - // let mut clogged_ack_sink = BufferingClogAdapter::new(PollSender::new(ack_sender)); - // clogged_ack_sink.set_clogged(true); - // let mut stream = BackpressuredStream::new(stream, clogged_ack_sink, WINDOW_SIZE); - - // // The first four attempts at `window_size = 3` should succeed. - // sink.send(0).now_or_never().unwrap().unwrap(); - // sink.send(1).now_or_never().unwrap().unwrap(); - // sink.send(2).now_or_never().unwrap().unwrap(); - // sink.send(3).now_or_never().unwrap().unwrap(); - - // let mut items = VecDeque::new(); - // let mut tickets = VecDeque::new(); - // // Receive the 4 items we sent along with their tickets. - // for _ in 0..4 { - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // items.push_back(item); - // tickets.push_back(ticket); - // } - // // Drop a ticket, making room for one more item. - // let _ = tickets.pop_front(); - // // Ensure no ACK was received since the sink is clogged. - // assert!(ack_receiver.recv().now_or_never().is_none()); - // // Ensure polling the stream returns pending. - // assert!(stream.next().now_or_never().is_none()); - // assert!(ack_receiver.recv().now_or_never().is_none()); - - // // Send a new item because now we should have capacity. - // sink.send(4).now_or_never().unwrap().unwrap(); - // // Receive the item along with the ticket. - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // items.push_back(item); - // tickets.push_back(ticket); - - // // Unclog the ACK sink. This should let 1 ACK finally flush. - // stream.ack_sink.set_clogged(false); - // // Drop another ticket. - // let _ = tickets.pop_front(); - // // Send a new item with the capacity from the second ticket drop. - // sink.send(5).now_or_never().unwrap().unwrap(); - // // Receive the item from the stream. - // let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - // items.push_back(item); - // tickets.push_back(ticket); - // assert_eq!(ack_receiver.recv().now_or_never().unwrap().unwrap(), 2); - // assert!(ack_receiver.recv().now_or_never().is_none()); - // } + #[tokio::test] + async fn backpressured_roundtrip_concurrent_tasks() { + let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); + let TwoWayFixtures { + mut client, + mut server, + } = TwoWayFixtures::new(512); + + let send_fut = tokio::spawn(async move { + for item in to_send.iter() { + // Try to feed each item into the sink. + if client.feed(item.encode()).await.is_err() { + // When `feed` fails, the sink is full, so we flush it. + client.flush().await.unwrap(); + // After flushing, the sink must be able to accept new items. + match client.feed(item.encode()).await { + Err(BackpressureError::AckStreamClosed) => { + return client; + } + Ok(_) => {} + Err(e) => { + panic!("Error on sink send: {}", e); + } + } + } + } + // Close the sink here to signal the end of the stream on the other end. + client.close().await.unwrap(); + // Return the sink so we don't drop the ACK sending end yet. + client + }); + + let recv_fut = tokio::spawn(async move { + let mut items: Vec = vec![]; + while let Some(next) = server.next().await { + let (item, ticket) = next.unwrap(); + // Receive each item sent by the sink. + items.push(u16::decode(&item)); + // Make sure to drop the ticket after processing. + drop(ticket); + } + items + }); + + let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); + assert!(send_result.is_ok()); + assert_eq!( + recv_result.unwrap(), + (0..u16::MAX).into_iter().rev().collect::>() + ); + } + + // TODO: Test overflows kill the connection. } diff --git a/muxink/src/testing/encoding.rs b/muxink/src/testing/encoding.rs index 49a415b1a5..8b91b007e8 100644 --- a/muxink/src/testing/encoding.rs +++ b/muxink/src/testing/encoding.rs @@ -24,7 +24,6 @@ pub(crate) trait TestEncodeable { /// Decodes a previously encoded value from bytes. /// /// The given `raw` buffer must contain exactly the output of a previous `encode` call. - #[inline] fn decode(raw: &Bytes) -> Self; } From 935dc26e0a486a9d23a2988ba86f9541c46f1b85 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Oct 2022 16:45:00 +0100 Subject: [PATCH 211/735] muxink: Fix most `backpackpressure` clippy errors --- muxink/src/backpressured.rs | 8 ++++---- muxink/src/demux.rs | 2 +- muxink/src/fragmented.rs | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 9a5c922772..a762a9cfd3 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -425,20 +425,20 @@ where self_mut.last_received += 1; // Yield the item along with a ticket to be released when // the processing of said item is done. - return Poll::Ready(Some(Ok(( + Poll::Ready(Some(Ok(( next_item, Ticket::new(self_mut.ack_sender.clone()), - )))); + )))) } Some(Err(err)) => { // Return the error on the underlying stream. - return Poll::Ready(Some(Err(BackpressuredStreamError::Stream(err)))); + Poll::Ready(Some(Err(BackpressuredStreamError::Stream(err)))) } None => { // If the underlying stream is closed, the `BackpressuredStream` // is also considered closed. Polling the stream after this point // is undefined behavior. - return Poll::Ready(None); + Poll::Ready(None) } } } diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 0ba5d780f5..db7ce6f0c7 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -59,7 +59,7 @@ impl Demultiplexer { const WAKERS_INIT: Option = None; Demultiplexer { // We fuse the stream in case its unsafe to call it after yielding `Poll::Ready(None)` - stream: stream, + stream, is_finished: false, // Initially, we have no next frame next_frame: None, diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 95edfefb31..9ad1bb922e 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -211,7 +211,7 @@ where loop { match ready!(self_mut.stream.poll_next_unpin(cx)) { Some(Ok(mut next_fragment)) => { - let is_final = match next_fragment.get(0).cloned() { + let is_final = match next_fragment.first().cloned() { Some(MORE_FRAGMENTS) => false, Some(FINAL_FRAGMENT) => true, Some(invalid) => { From 0b0cb6047b4975af90316040ae2737aa1d6e91d1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Oct 2022 16:49:11 +0100 Subject: [PATCH 212/735] muxink: Cleanup and expose ACK stream errors in backpressured stream --- muxink/src/backpressured.rs | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index a762a9cfd3..255e83884c 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -260,26 +260,22 @@ impl Drop for Ticket { /// Error type for a [`BackpressuredStream`]. #[derive(Debug, Error)] -pub enum BackpressuredStreamError { - /// Couldn't enqueue an ACK for sending on the ACK sink after it polled - /// ready. - #[error("Error sending ACK to sender")] - AckSend, +pub enum BackpressuredStreamError { + /// Couldn't enqueue an ACK for sending on the ACK sink after it polled ready. + #[error("error sending ACK")] + AckSend(#[source] ErrSendAck), /// Error on polling the ACK sink. - #[error("Error polling the ACK stream")] + #[error("error polling the ACK stream")] AckSinkPoll, /// Error flushing the ACK sink. - #[error("Error flushing the ACK stream")] + #[error("error flushing the ACK stream")] Flush, - /// Error on the underlying stream when it is ready to yield a new item, - /// but doing so would bring the number of in flight items over the - /// limit imposed by the window size and therefore the sender broke the - /// contract. - #[error("Sender sent more items than the window size")] + /// The peer exceeded the configure window size. + #[error("peer exceeded window size")] ItemOverflow, /// Error encountered by the underlying stream. - #[error(transparent)] - Stream(E), + #[error("stream receive failure")] + Stream(#[source] ErrRecv), } /// A backpressuring stream. @@ -351,8 +347,9 @@ where E: std::error::Error, Self: Unpin, A: Sink + Unpin, + >::Error: std::error::Error, { - type Item = Result<(StreamItem, Ticket), BackpressuredStreamError>; + type Item = Result<(StreamItem, Ticket), BackpressuredStreamError>::Error>>; fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { let self_mut = self.get_mut(); @@ -389,8 +386,8 @@ where // Enqueue one item representing the number of items processed // so far. This should never be an error as the sink must be // ready to accept new items at this point. - if let Err(_) = self_mut.ack_sink.start_send_unpin(self_mut.items_processed) { - return Poll::Ready(Some(Err(BackpressuredStreamError::AckSend))); + if let Err(err) = self_mut.ack_sink.start_send_unpin(self_mut.items_processed) { + return Poll::Ready(Some(Err(BackpressuredStreamError::AckSend(err)))); } // Now that the ACKs have been handed to the ACK sink, // reset the received ACK counter. From 2c98125a0b29ed1c3f7a91152b978f5bfb0a6283 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 2 Nov 2022 13:39:45 +0100 Subject: [PATCH 213/735] muxink: Remove unused `anyhow` dependency --- Cargo.lock | 1 - muxink/Cargo.toml | 3 ++- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 2e5779f231..665eb160a0 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2823,7 +2823,6 @@ dependencies = [ name = "muxink" version = "0.1.0" dependencies = [ - "anyhow", "bincode", "bytes", "casper-types 1.5.0", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index bb19e88069..628a0570ee 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -4,7 +4,6 @@ version = "0.1.0" edition = "2021" [dependencies] -anyhow = "1.0.57" bincode = { version = "1.3.3", optional = true } bytes = "1.1.0" futures = "0.3.21" @@ -18,3 +17,5 @@ casper-types = { path = "../types", optional = true } [dev-dependencies] tokio-stream = "0.1.8" tokio-util = { version = "0.7.2", features = [ "compat" ] } + +[features] From c3e4cb43dd4d4fd7169f54cf10c2c2ff72b7fa0a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 2 Nov 2022 14:40:19 +0100 Subject: [PATCH 214/735] muxink: Fix remaining compilation warnings --- muxink/src/backpressured.rs | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 255e83884c..7948eb58be 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -443,27 +443,21 @@ where #[cfg(test)] mod tests { - use std::{ - collections::VecDeque, - convert::{Infallible, TryInto}, - io, - sync::Arc, - }; + use std::{collections::VecDeque, convert::Infallible, sync::Arc}; use bytes::Bytes; use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; - use tokio::sync::mpsc::UnboundedSender; - use tokio_stream::wrappers::{ReceiverStream, UnboundedReceiverStream}; + use tokio_stream::wrappers::ReceiverStream; use tokio_util::sync::PollSender; use crate::testing::{ - collect_buf, collect_bufs, + collect_bufs, encoding::{EncodeAndSend, TestEncodeable}, - testing_sink::{BufferingClogAdapter, TestingSink, TestingSinkRef}, + testing_sink::{TestingSink, TestingSinkRef}, }; use super::{ - BackpressureError, BackpressuredSink, BackpressuredStream, BackpressuredStreamError, Ticket, + BackpressureError, BackpressuredSink, BackpressuredStream, BackpressuredStreamError, }; /// Window size used in tests. @@ -481,7 +475,7 @@ mod tests { let stream = ReceiverStream::new(recv).map(Ok); let sink = - PollSender::new(send).sink_map_err(|err| panic!("did not expect a `PollSendError`")); + PollSender::new(send).sink_map_err(|_err| panic!("did not expect a `PollSendError`")); (sink, stream) } @@ -884,7 +878,7 @@ mod tests { let mut in_progress = Vec::new(); for _ in 0..=WINDOW_SIZE { let received = server.next().now_or_never().unwrap().unwrap(); - let (bytes, ticket) = received.unwrap(); + let (_bytes, ticket) = received.unwrap(); // We need to keep the tickets around to simulate the server being busy. in_progress.push(ticket); From 759330fa69d4fb842f9d24e4df9e92fb4c84eda3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 2 Nov 2022 14:42:45 +0100 Subject: [PATCH 215/735] muxink: Fix remaining clippy errors --- muxink/src/backpressured.rs | 3 ++- muxink/src/demux.rs | 4 ++-- muxink/src/fragmented.rs | 4 ++-- muxink/src/testing.rs | 4 ++-- muxink/src/testing/encoding.rs | 6 +++--- muxink/src/testing/testing_sink.rs | 2 +- 6 files changed, 12 insertions(+), 11 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index 7948eb58be..d7454d9470 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -520,6 +520,7 @@ mod tests { /// /// The resulting `client` sends byte frames across to the `server`, with ACKs flowing through /// the associated ACK pipe. + #[allow(clippy::type_complexity)] struct TwoWayFixtures { client: BackpressuredSink< Box + Send + Unpin>, @@ -680,7 +681,7 @@ mod tests { // Sanity check: Attempting to send another item will be refused by the client side's // limiter to avoid exceeding the allowed window. - assert!(client.encode_and_send(99 as u8).now_or_never().is_none()); + assert!(client.encode_and_send(99_u8).now_or_never().is_none()); let mut items = VecDeque::new(); let mut tickets = VecDeque::new(); diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index db7ce6f0c7..526bac93ac 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -298,7 +298,7 @@ mod tests { // We make two handles, one for the 0 channel and another for the 1 channel let mut zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); - let mut one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); + let mut one_handle = Demultiplexer::create_handle::(demux, 1).unwrap(); // We know the order that these things have to be awaited, so we can make sure that exactly // what we expects happens using the `now_or_never` function. @@ -383,7 +383,7 @@ mod tests { Err(DemultiplexerError::ChannelUnavailable(0)) => {} _ => panic!("Channel 0 was available even though we already have a handle to it"), } - assert!(Demultiplexer::create_handle::(demux.clone(), 1).is_ok()); + assert!(Demultiplexer::create_handle::(demux, 1).is_ok()); } #[tokio::test] diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs index 9ad1bb922e..bc4184035b 100644 --- a/muxink/src/fragmented.rs +++ b/muxink/src/fragmented.rs @@ -299,7 +299,7 @@ mod tests { /// Builds a sequence of frames that could have been read from the network. fn build_frame_input(frames: &[&'static [u8]]) -> Vec> { frames - .into_iter() + .iter() .map(|&x| Bytes::from(x)) .map(Result::Ok) .collect() @@ -355,7 +355,7 @@ mod tests { { let mut fragmentizer = Fragmentizer::new(FRAGMENT_SIZE.try_into().unwrap(), sender); fragmentizer - .send(frame.clone()) + .send(frame) .now_or_never() .expect("Couldn't send frame") .unwrap(); diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 3d0116f968..e0319ea665 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -91,13 +91,13 @@ impl Stream for TestStream { panic!("polled a TestStream after completion"); } if let Some(t) = self.items.pop_front() { - return Poll::Ready(Some(t)); + Poll::Ready(Some(t)) } else { // Before we return None, make sure we set finished to true so that calling this // again will result in a panic, as the specification for `Stream` tells us is // possible with an arbitrary implementation. self.finished = true; - return Poll::Ready(None); + Poll::Ready(None) } } } diff --git a/muxink/src/testing/encoding.rs b/muxink/src/testing/encoding.rs index 8b91b007e8..3258060803 100644 --- a/muxink/src/testing/encoding.rs +++ b/muxink/src/testing/encoding.rs @@ -36,7 +36,7 @@ impl TestEncodeable for char { } fn decode(raw: &Bytes) -> Self { - let s = std::str::from_utf8(&raw).expect("invalid utf8"); + let s = std::str::from_utf8(raw).expect("invalid utf8"); let mut chars = s.chars(); let c = chars.next().expect("no chars in string"); assert!(chars.next().is_none()); @@ -92,7 +92,7 @@ pub(crate) trait EncodeAndSend { /// let encoded = value.encode(); /// sink.send(encoded) /// ``` - fn encode_and_send<'a, T>(&'a mut self, value: T) -> futures::sink::Send<'a, Self, Bytes> + fn encode_and_send(&mut self, value: T) -> futures::sink::Send<'_, Self, Bytes> where T: TestEncodeable; } @@ -101,7 +101,7 @@ impl EncodeAndSend for S where S: Sink + Unpin, { - fn encode_and_send<'a, T>(&'a mut self, value: T) -> futures::sink::Send<'a, Self, Bytes> + fn encode_and_send(&mut self, value: T) -> futures::sink::Send<'_, Self, Bytes> where T: TestEncodeable, { diff --git a/muxink/src/testing/testing_sink.rs b/muxink/src/testing/testing_sink.rs index 3a90341986..6d1eff3747 100644 --- a/muxink/src/testing/testing_sink.rs +++ b/muxink/src/testing/testing_sink.rs @@ -359,7 +359,7 @@ where self_mut.waker = Some(cx.waker().clone()); Poll::Pending } else { - if let Poll::Pending = self_mut.poll_ready_unpin(cx) { + if self_mut.poll_ready_unpin(cx).is_pending() { return Poll::Pending; } while let Some(item) = self_mut.buffer.pop_front() { From 8c6374d771b57c04e6efba62b6cbe8a6668037a7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 2 Nov 2022 14:47:12 +0100 Subject: [PATCH 216/735] muxink: Reduce used features of `tokio` --- Cargo.lock | 29 ++--------------------------- muxink/Cargo.toml | 3 ++- 2 files changed, 4 insertions(+), 28 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 665eb160a0..38def572de 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3171,17 +3171,7 @@ checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99" dependencies = [ "instant", "lock_api", - "parking_lot_core 0.8.5", -] - -[[package]] -name = "parking_lot" -version = "0.12.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f" -dependencies = [ - "lock_api", - "parking_lot_core 0.9.3", + "parking_lot_core", ] [[package]] @@ -3198,19 +3188,6 @@ dependencies = [ "winapi", ] -[[package]] -name = "parking_lot_core" -version = "0.9.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929" -dependencies = [ - "cfg-if 1.0.0", - "libc", - "redox_syscall", - "smallvec", - "windows-sys", -] - [[package]] name = "paste" version = "1.0.8" @@ -3449,7 +3426,7 @@ dependencies = [ "fnv", "lazy_static", "memchr", - "parking_lot 0.11.2", + "parking_lot", "protobuf", "thiserror", ] @@ -4637,9 +4614,7 @@ dependencies = [ "mio", "num_cpus", "once_cell", - "parking_lot 0.12.1", "pin-project-lite", - "signal-hook-registry", "socket2", "tokio-macros", "winapi", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 628a0570ee..647dced9d5 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -9,12 +9,13 @@ bytes = "1.1.0" futures = "0.3.21" serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" -tokio = { version = "1", features = [ "full" ] } # TODO: Reduce features. +tokio = { version = "1" } tokio-util = "0.7.2" tracing = "0.1.18" casper-types = { path = "../types", optional = true } [dev-dependencies] +tokio = { version = "1", features = [ "io-util", "macros", "net", "rt" ] } tokio-stream = "0.1.8" tokio-util = { version = "0.7.2", features = [ "compat" ] } From 530dee304b2db2e23acd7620f27b9b6d7efb1ab9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 2 Nov 2022 14:49:37 +0100 Subject: [PATCH 217/735] muxink: Remove already removed features from `Cargo.toml` --- Cargo.lock | 3 --- muxink/Cargo.toml | 5 ----- 2 files changed, 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 38def572de..d1626efbcf 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2823,11 +2823,8 @@ dependencies = [ name = "muxink" version = "0.1.0" dependencies = [ - "bincode", "bytes", - "casper-types 1.5.0", "futures", - "serde", "thiserror", "tokio", "tokio-stream", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 647dced9d5..86a75375a7 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -4,19 +4,14 @@ version = "0.1.0" edition = "2021" [dependencies] -bincode = { version = "1.3.3", optional = true } bytes = "1.1.0" futures = "0.3.21" -serde = { version = "1.0.138", optional = true } thiserror = "1.0.31" tokio = { version = "1" } tokio-util = "0.7.2" tracing = "0.1.18" -casper-types = { path = "../types", optional = true } [dev-dependencies] tokio = { version = "1", features = [ "io-util", "macros", "net", "rt" ] } tokio-stream = "0.1.8" tokio-util = { version = "0.7.2", features = [ "compat" ] } - -[features] From 5cdf28e7a3f36cb75a83fe08ea97074428b9928a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 31 Jul 2022 19:37:50 +0200 Subject: [PATCH 218/735] Remove `framed_transport` concept from `small_network` --- node/src/components/small_network.rs | 19 +- node/src/components/small_network/tasks.rs | 443 ++++++++++----------- 2 files changed, 226 insertions(+), 236 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index dd821fef0d..71b9c6bff8 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -1217,43 +1217,34 @@ type Transport = SslStream; /// A framed transport for `Message`s. pub(crate) type FullTransport

= tokio_serde::Framed< - FramedTransport, + tokio_util::codec::Framed, Message

, Arc>, CountingFormat, >; -pub(crate) type FramedTransport = tokio_util::codec::Framed; - /// Constructs a new full transport on a stream. /// /// A full transport contains the framing as well as the encoding scheme used to send messages. fn full_transport

( metrics: Weak, connection_id: ConnectionId, - framed: FramedTransport, + transport: Transport, role: Role, ) -> FullTransport

where for<'de> P: Serialize + Deserialize<'de>, for<'de> Message

: Serialize + Deserialize<'de>, { + let framed = + tokio_util::codec::Framed::new(transport, LengthDelimitedCodec::builder().new_codec()); + tokio_serde::Framed::new( framed, CountingFormat::new(metrics, connection_id, role, BincodeFormat::default()), ) } -/// Constructs a framed transport. -fn framed_transport(transport: Transport, maximum_net_message_size: u32) -> FramedTransport { - tokio_util::codec::Framed::new( - transport, - LengthDelimitedCodec::builder() - .max_frame_length(maximum_net_message_size as usize) - .new_codec(), - ) -} - impl Debug for SmallNetwork where P: Payload, diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 166fa6fc60..0b33245391 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -50,10 +50,10 @@ use super::{ limiter::LimiterHandle, message::ConsensusKeyPair, message_pack_format::MessagePackFormat, - EstimatorWeights, Event, FramedTransport, FullTransport, Message, Metrics, Payload, Transport, + EstimatorWeights, Event, FullTransport, Message, Metrics, Payload, Transport, }; use crate::{ - components::small_network::{framed_transport, BincodeFormat, FromIncoming}, + components::small_network::{BincodeFormat, FromIncoming}, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -70,7 +70,7 @@ pub(super) type MessageQueueItem

= (Arc>, Option(&context, framed_transport, connection_id).await { + match negotiate_handshake::(&context, transport, connection_id).await { Ok(HandshakeOutcome { - framed_transport, + transport, public_addr, peer_consensus_public_key, is_peer_syncing: is_syncing, @@ -173,7 +172,7 @@ where let full_transport = full_transport::

( context.net_metrics.clone(), connection_id, - framed_transport, + transport, Role::Dialer, ); let (sink, _stream) = full_transport.split(); @@ -275,12 +274,11 @@ where // Setup connection id and framed transport. let connection_id = ConnectionId::from_connection(transport.ssl(), context.our_id, peer_id); - let framed_transport = framed_transport(transport, context.chain_info.maximum_net_message_size); // Negotiate the handshake, concluding the incoming connection process. - match negotiate_handshake::(&context, framed_transport, connection_id).await { + match negotiate_handshake::(&context, transport, connection_id).await { Ok(HandshakeOutcome { - framed_transport, + transport, public_addr, peer_consensus_public_key, is_peer_syncing: _, @@ -293,7 +291,7 @@ where let full_transport = full_transport::

( context.net_metrics.clone(), connection_id, - framed_transport, + transport, Role::Listener, ); @@ -382,7 +380,7 @@ where /// Negotiates a handshake between two peers. async fn negotiate_handshake( context: &NetworkContext, - framed: FramedTransport, + transport: Transport, connection_id: ConnectionId, ) -> Result where @@ -390,114 +388,116 @@ where { let mut encoder = MessagePackFormat; - // Manually encode a handshake. - let handshake_message = context.chain_info.create_handshake::

( - context.public_addr, - context.consensus_keys.as_ref(), - connection_id, - context.is_syncing.load(Ordering::SeqCst), - ); - - let serialized_handshake_message = Pin::new(&mut encoder) - .serialize(&Arc::new(handshake_message)) - .map_err(ConnectionError::CouldNotEncodeOurHandshake)?; - - // To ensure we are not dead-locking, we split the framed transport here and send the handshake - // in a background task before awaiting one ourselves. This ensures we can make progress - // regardless of the size of the outgoing handshake. - let (mut sink, mut stream) = framed.split(); - - let handshake_send = tokio::spawn(io_timeout(context.handshake_timeout.into(), async move { - sink.send(serialized_handshake_message).await?; - Ok(sink) - })); - - // The remote's message should be a handshake, but can technically be any message. We receive, - // deserialize and check it. - let remote_message_raw = io_opt_timeout(context.handshake_timeout.into(), stream.next()) - .await - .map_err(ConnectionError::HandshakeRecv)?; - - // Ensure the handshake was sent correctly. - let sink = handshake_send - .await - .map_err(ConnectionError::HandshakeSenderCrashed)? - .map_err(ConnectionError::HandshakeSend)?; - - let remote_message: Message

= Pin::new(&mut encoder) - .deserialize(&remote_message_raw) - .map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; - - if let Message::Handshake { - network_name, - public_addr, - protocol_version, - consensus_certificate, - is_syncing, - chainspec_hash, - } = remote_message - { - debug!(%protocol_version, "handshake received"); - - // The handshake was valid, we can check the network name. - if network_name != context.chain_info.network_name { - return Err(ConnectionError::WrongNetwork(network_name)); - } - - // If there is a version mismatch, we treat it as a connection error. We do not ban peers - // for this error, but instead rely on exponential backoff, as bans would result in issues - // during upgrades where nodes may have a legitimate reason for differing versions. - // - // Since we are not using SemVer for versioning, we cannot make any assumptions about - // compatibility, so we allow only exact version matches. - if protocol_version != context.chain_info.protocol_version { - if let Some(threshold) = context.tarpit_version_threshold { - if protocol_version <= threshold { - let mut rng = crate::new_rng(); - - if rng.gen_bool(context.tarpit_chance as f64) { - // If tarpitting is enabled, we hold open the connection for a specific - // amount of time, to reduce load on other nodes and keep them from - // reconnecting. - info!(duration=?context.tarpit_duration, "randomly tarpitting node"); - tokio::time::sleep(Duration::from(context.tarpit_duration)).await; - } else { - debug!(p = context.tarpit_chance, "randomly not tarpitting node"); - } - } - } - return Err(ConnectionError::IncompatibleVersion(protocol_version)); - } - - // We check the chainspec hash to ensure peer is using the same chainspec as us. - // The remote message should always have a chainspec hash at this point since - // we checked the protocol version previously. - let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; - if peer_chainspec_hash != context.chain_info.chainspec_hash { - return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); - } - - let peer_consensus_public_key = consensus_certificate - .map(|cert| { - cert.validate(connection_id) - .map_err(ConnectionError::InvalidConsensusCertificate) - }) - .transpose()?; - - let framed_transport = sink - .reunite(stream) - .map_err(|_| ConnectionError::FailedToReuniteHandshakeSinkAndStream)?; - - Ok(HandshakeOutcome { - framed_transport, - public_addr, - peer_consensus_public_key, - is_peer_syncing: is_syncing, - }) - } else { - // Received a non-handshake, this is an error. - Err(ConnectionError::DidNotSendHandshake) - } + todo!() + + // // Manually encode a handshake. + // let handshake_message = context.chain_info.create_handshake::

( + // context.public_addr, + // context.consensus_keys.as_ref(), + // connection_id, + // context.is_syncing.load(Ordering::SeqCst), + // ); + + // let serialized_handshake_message = Pin::new(&mut encoder) + // .serialize(&Arc::new(handshake_message)) + // .map_err(ConnectionError::CouldNotEncodeOurHandshake)?; + + // // To ensure we are not dead-locking, we split the framed transport here and send the handshake + // // in a background task before awaiting one ourselves. This ensures we can make progress + // // regardless of the size of the outgoing handshake. + // let (mut sink, mut stream) = framed.split(); + + // let handshake_send = tokio::spawn(io_timeout(context.handshake_timeout.into(), async move { + // sink.send(serialized_handshake_message).await?; + // Ok(sink) + // })); + + // // The remote's message should be a handshake, but can technically be any message. We receive, + // // deserialize and check it. + // let remote_message_raw = io_opt_timeout(context.handshake_timeout.into(), stream.next()) + // .await + // .map_err(ConnectionError::HandshakeRecv)?; + + // // Ensure the handshake was sent correctly. + // let sink = handshake_send + // .await + // .map_err(ConnectionError::HandshakeSenderCrashed)? + // .map_err(ConnectionError::HandshakeSend)?; + + // let remote_message: Message

= Pin::new(&mut encoder) + // .deserialize(&remote_message_raw) + // .map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; + + // if let Message::Handshake { + // network_name, + // public_addr, + // protocol_version, + // consensus_certificate, + // is_syncing, + // chainspec_hash, + // } = remote_message + // { + // debug!(%protocol_version, "handshake received"); + + // // The handshake was valid, we can check the network name. + // if network_name != context.chain_info.network_name { + // return Err(ConnectionError::WrongNetwork(network_name)); + // } + + // // If there is a version mismatch, we treat it as a connection error. We do not ban peers + // // for this error, but instead rely on exponential backoff, as bans would result in issues + // // during upgrades where nodes may have a legitimate reason for differing versions. + // // + // // Since we are not using SemVer for versioning, we cannot make any assumptions about + // // compatibility, so we allow only exact version matches. + // if protocol_version != context.chain_info.protocol_version { + // if let Some(threshold) = context.tarpit_version_threshold { + // if protocol_version <= threshold { + // let mut rng = crate::new_rng(); + + // if rng.gen_bool(context.tarpit_chance as f64) { + // // If tarpitting is enabled, we hold open the connection for a specific + // // amount of time, to reduce load on other nodes and keep them from + // // reconnecting. + // info!(duration=?context.tarpit_duration, "randomly tarpitting node"); + // tokio::time::sleep(Duration::from(context.tarpit_duration)).await; + // } else { + // debug!(p = context.tarpit_chance, "randomly not tarpitting node"); + // } + // } + // } + // return Err(ConnectionError::IncompatibleVersion(protocol_version)); + // } + + // // We check the chainspec hash to ensure peer is using the same chainspec as us. + // // The remote message should always have a chainspec hash at this point since + // // we checked the protocol version previously. + // let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; + // if peer_chainspec_hash != context.chain_info.chainspec_hash { + // return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); + // } + + // let peer_consensus_public_key = consensus_certificate + // .map(|cert| { + // cert.validate(connection_id) + // .map_err(ConnectionError::InvalidConsensusCertificate) + // }) + // .transpose()?; + + // let framed_transport = sink + // .reunite(stream) + // .map_err(|_| ConnectionError::FailedToReuniteHandshakeSinkAndStream)?; + + // Ok(HandshakeOutcome { + // framed_transport, + // public_addr, + // peer_consensus_public_key, + // is_peer_syncing: is_syncing, + // }) + // } else { + // // Received a non-handshake, this is an error. + // Err(ConnectionError::DidNotSendHandshake) + // } } /// Runs the server core acceptor loop. @@ -590,113 +590,112 @@ where { let demands_in_flight = Arc::new(Semaphore::new(context.max_in_flight_demands)); - let read_messages = async move { - while let Some(msg_result) = stream.next().await { - match msg_result { - Ok(msg) => { - trace!(%msg, "message received"); - - let effect_builder = EffectBuilder::new(context.event_queue); - - match msg.try_into_demand(effect_builder, peer_id) { - Ok((event, wait_for_response)) => { - // Note: For now, demands bypass the limiter, as we expect the - // backpressure to handle this instead. - - // Acquire a permit. If we are handling too many demands at this - // time, this will block, halting the processing of new message, - // thus letting the peer they have reached their maximum allowance. - let in_flight = demands_in_flight - .clone() - .acquire_owned() - .await - // Note: Since the semaphore is reference counted, it must - // explicitly be closed for acquisition to fail, which we - // never do. If this happens, there is a bug in the code; - // we exit with an error and close the connection. - .map_err(|_| { - io::Error::new( - io::ErrorKind::Other, - "demand limiter semaphore closed unexpectedly", - ) - })?; - - Metrics::record_trie_request_start(&context.net_metrics); - - let net_metrics = context.net_metrics.clone(); - // Spawn a future that will eventually send the returned message. It - // will essentially buffer the response. - tokio::spawn(async move { - if let Some(payload) = wait_for_response.await { - // Send message and await its return. `send_message` should - // only return when the message has been buffered, if the - // peer is not accepting data, we will block here until the - // send buffer has sufficient room. - effect_builder.send_message(peer_id, payload).await; - - // Note: We could short-circuit the event queue here and - // directly insert into the outgoing message queue, - // which may be potential performance improvement. - } - - // Missing else: The handler of the demand did not deem it - // worthy a response. Just drop it. - - // After we have either successfully buffered the message for - // sending, failed to do so or did not have a message to send - // out, we consider the request handled and free up the permit. - Metrics::record_trie_request_end(&net_metrics); - drop(in_flight); - }); - - // Schedule the created event. - context - .event_queue - .schedule::(event, QueueKind::NetworkDemand) - .await; - } - Err(msg) => { - // We've received a non-demand message. Ensure we have the proper amount - // of resources, then push it to the reactor. - limiter - .request_allowance( - msg.payload_incoming_resource_estimate( + let read_messages = + async move { + while let Some(msg_result) = stream.next().await { + match msg_result { + Ok(msg) => { + trace!(%msg, "message received"); + + let effect_builder = EffectBuilder::new(context.event_queue); + + match msg.try_into_demand(effect_builder, peer_id) { + Ok((event, wait_for_response)) => { + // Note: For now, demands bypass the limiter, as we expect the + // backpressure to handle this instead. + + // Acquire a permit. If we are handling too many demands at this + // time, this will block, halting the processing of new message, + // thus letting the peer they have reached their maximum allowance. + let in_flight = demands_in_flight + .clone() + .acquire_owned() + .await + // Note: Since the semaphore is reference counted, it must + // explicitly be closed for acquisition to fail, which we + // never do. If this happens, there is a bug in the code; + // we exit with an error and close the connection. + .map_err(|_| { + io::Error::new( + io::ErrorKind::Other, + "demand limiter semaphore closed unexpectedly", + ) + })?; + + Metrics::record_trie_request_start(&context.net_metrics); + + let net_metrics = context.net_metrics.clone(); + // Spawn a future that will eventually send the returned message. It + // will essentially buffer the response. + tokio::spawn(async move { + if let Some(payload) = wait_for_response.await { + // Send message and await its return. `send_message` should + // only return when the message has been buffered, if the + // peer is not accepting data, we will block here until the + // send buffer has sufficient room. + effect_builder.send_message(peer_id, payload).await; + + // Note: We could short-circuit the event queue here and + // directly insert into the outgoing message queue, + // which may be potential performance improvement. + } + + // Missing else: The handler of the demand did not deem it + // worthy a response. Just drop it. + + // After we have either successfully buffered the message for + // sending, failed to do so or did not have a message to send + // out, we consider the request handled and free up the permit. + Metrics::record_trie_request_end(&net_metrics); + drop(in_flight); + }); + + // Schedule the created event. + context + .event_queue + .schedule::(event, QueueKind::NetworkDemand) + .await; + } + Err(msg) => { + // We've received a non-demand message. Ensure we have the proper amount + // of resources, then push it to the reactor. + limiter + .request_allowance(msg.payload_incoming_resource_estimate( &context.payload_weights, - ), - ) - .await; - - let queue_kind = if msg.is_low_priority() { - QueueKind::NetworkLowPriority - } else { - QueueKind::NetworkIncoming - }; - - context - .event_queue - .schedule( - Event::IncomingMessage { - peer_id: Box::new(peer_id), - msg: Box::new(msg), - span: span.clone(), - }, - queue_kind, - ) - .await; + )) + .await; + + let queue_kind = if msg.is_low_priority() { + QueueKind::NetworkLowPriority + } else { + QueueKind::NetworkIncoming + }; + + context + .event_queue + .schedule( + Event::IncomingMessage { + peer_id: Box::new(peer_id), + msg: Box::new(msg), + span: span.clone(), + }, + queue_kind, + ) + .await; + } } } - } - Err(err) => { - warn!( - err = display_error(&err), - "receiving message failed, closing connection" - ); - return Err(err); + Err(err) => { + warn!( + err = display_error(&err), + "receiving message failed, closing connection" + ); + return Err(err); + } } } - } - Ok(()) - }; + Ok(()) + }; let shutdown_messages = async move { while close_incoming_receiver.changed().await.is_ok() {} }; From 0068f1bc5a0e537d9dd19dbb76fb14a0be152035 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 31 Jul 2022 19:51:06 +0200 Subject: [PATCH 219/735] Move handshake-related functionality into its own module --- node/src/components/small_network.rs | 1 + .../src/components/small_network/handshake.rs | 181 +++++++++++++++++ node/src/components/small_network/tasks.rs | 186 +----------------- 3 files changed, 190 insertions(+), 178 deletions(-) create mode 100644 node/src/components/small_network/handshake.rs diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 71b9c6bff8..0ee9266f7d 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -30,6 +30,7 @@ mod counting_format; mod error; mod event; mod gossiped_address; +mod handshake; mod limiter; mod message; mod message_pack_format; diff --git a/node/src/components/small_network/handshake.rs b/node/src/components/small_network/handshake.rs new file mode 100644 index 0000000000..ff2c68854e --- /dev/null +++ b/node/src/components/small_network/handshake.rs @@ -0,0 +1,181 @@ +//! Handshake handling for `small_network`. +//! +//! The handshake differs from the rest of the networking code since it is (almost) unmodified since +//! version 1.0, to allow nodes to make informed decisions about blocking other nodes. + +use std::{error::Error as StdError, net::SocketAddr, time::Duration}; + +use casper_types::PublicKey; +use futures::Future; + +use super::{ + counting_format::ConnectionId, + error::{ConnectionError, IoError}, + message_pack_format::MessagePackFormat, + tasks::NetworkContext, + Payload, Transport, +}; + +/// The outcome of the handshake process. +pub(super) struct HandshakeOutcome { + /// A framed transport for peer. + pub(super) transport: Transport, + /// Public address advertised by the peer. + pub(super) public_addr: SocketAddr, + /// The public key the peer is validating with, if any. + pub(super) peer_consensus_public_key: Option, + /// Holds the information whether the remote node is syncing. + pub(super) is_peer_syncing: bool, +} + +/// Performs an IO-operation that can time out. +pub(super) async fn io_timeout(duration: Duration, future: F) -> Result> +where + F: Future>, + E: StdError + 'static, +{ + tokio::time::timeout(duration, future) + .await + .map_err(|_elapsed| IoError::Timeout)? + .map_err(IoError::Error) +} + +/// Performs an IO-operation that can time out or result in a closed connection. +pub(super) async fn io_opt_timeout(duration: Duration, future: F) -> Result> +where + F: Future>>, + E: StdError + 'static, +{ + let item = tokio::time::timeout(duration, future) + .await + .map_err(|_elapsed| IoError::Timeout)?; + + match item { + Some(Ok(value)) => Ok(value), + Some(Err(err)) => Err(IoError::Error(err)), + None => Err(IoError::UnexpectedEof), + } +} + +/// Negotiates a handshake between two peers. +pub(super) async fn negotiate_handshake( + context: &NetworkContext, + transport: Transport, + connection_id: ConnectionId, +) -> Result +where + P: Payload, +{ + let mut encoder = MessagePackFormat; + + // // Manually encode a handshake. + // let handshake_message = context.chain_info.create_handshake::

( + // context.public_addr, + // context.consensus_keys.as_ref(), + // connection_id, + // context.is_syncing.load(Ordering::SeqCst), + // ); + + // let serialized_handshake_message = Pin::new(&mut encoder) + // .serialize(&Arc::new(handshake_message)) + // .map_err(ConnectionError::CouldNotEncodeOurHandshake)?; + + // // To ensure we are not dead-locking, we split the framed transport here and send the handshake + // // in a background task before awaiting one ourselves. This ensures we can make progress + // // regardless of the size of the outgoing handshake. + // let (mut sink, mut stream) = framed.split(); + + // let handshake_send = tokio::spawn(io_timeout(context.handshake_timeout.into(), async move { + // sink.send(serialized_handshake_message).await?; + // Ok(sink) + // })); + + // // The remote's message should be a handshake, but can technically be any message. We receive, + // // deserialize and check it. + // let remote_message_raw = io_opt_timeout(context.handshake_timeout.into(), stream.next()) + // .await + // .map_err(ConnectionError::HandshakeRecv)?; + + // // Ensure the handshake was sent correctly. + // let sink = handshake_send + // .await + // .map_err(ConnectionError::HandshakeSenderCrashed)? + // .map_err(ConnectionError::HandshakeSend)?; + + // let remote_message: Message

= Pin::new(&mut encoder) + // .deserialize(&remote_message_raw) + // .map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; + + // if let Message::Handshake { + // network_name, + // public_addr, + // protocol_version, + // consensus_certificate, + // is_syncing, + // chainspec_hash, + // } = remote_message + // { + // debug!(%protocol_version, "handshake received"); + + // // The handshake was valid, we can check the network name. + // if network_name != context.chain_info.network_name { + // return Err(ConnectionError::WrongNetwork(network_name)); + // } + + // // If there is a version mismatch, we treat it as a connection error. We do not ban peers + // // for this error, but instead rely on exponential backoff, as bans would result in issues + // // during upgrades where nodes may have a legitimate reason for differing versions. + // // + // // Since we are not using SemVer for versioning, we cannot make any assumptions about + // // compatibility, so we allow only exact version matches. + // if protocol_version != context.chain_info.protocol_version { + // if let Some(threshold) = context.tarpit_version_threshold { + // if protocol_version <= threshold { + // let mut rng = crate::new_rng(); + + // if rng.gen_bool(context.tarpit_chance as f64) { + // // If tarpitting is enabled, we hold open the connection for a specific + // // amount of time, to reduce load on other nodes and keep them from + // // reconnecting. + // info!(duration=?context.tarpit_duration, "randomly tarpitting node"); + // tokio::time::sleep(Duration::from(context.tarpit_duration)).await; + // } else { + // debug!(p = context.tarpit_chance, "randomly not tarpitting node"); + // } + // } + // } + // return Err(ConnectionError::IncompatibleVersion(protocol_version)); + // } + + // // We check the chainspec hash to ensure peer is using the same chainspec as us. + // // The remote message should always have a chainspec hash at this point since + // // we checked the protocol version previously. + // let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; + // if peer_chainspec_hash != context.chain_info.chainspec_hash { + // return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); + // } + + // let peer_consensus_public_key = consensus_certificate + // .map(|cert| { + // cert.validate(connection_id) + // .map_err(ConnectionError::InvalidConsensusCertificate) + // }) + // .transpose()?; + + // let framed_transport = sink + // .reunite(stream) + // .map_err(|_| ConnectionError::FailedToReuniteHandshakeSinkAndStream)?; + + // Ok(HandshakeOutcome { + // framed_transport, + // public_addr, + // peer_consensus_public_key, + // is_peer_syncing: is_syncing, + // }) + // } else { + // // Received a non-handshake, this is an error. + // Err(ConnectionError::DidNotSendHandshake) + // } + + todo!() +} diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 0b33245391..78b658cec3 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -1,23 +1,18 @@ //! Tasks run by the component. use std::{ - error::Error as StdError, fmt::Display, io, net::SocketAddr, pin::Pin, - sync::{ - atomic::{AtomicBool, Ordering}, - Arc, Weak, - }, - time::Duration, + sync::{atomic::AtomicBool, Arc, Weak}, }; use bincode::Options; use futures::{ future::{self, Either}, stream::{SplitSink, SplitStream}, - Future, SinkExt, StreamExt, + SinkExt, StreamExt, }; use openssl::{ pkey::{PKey, Private}, @@ -25,35 +20,34 @@ use openssl::{ x509::X509, }; use prometheus::IntGauge; -use rand::Rng; use serde::{de::DeserializeOwned, Deserialize, Serialize}; use tokio::{ net::TcpStream, sync::{mpsc::UnboundedReceiver, watch, Semaphore}, }; use tokio_openssl::SslStream; -use tokio_serde::{Deserializer, Serializer}; use tracing::{ debug, error, error_span, field::{self, Empty}, info, trace, warn, Instrument, Span, }; -use casper_types::{ProtocolVersion, PublicKey, TimeDiff}; +use casper_types::{ProtocolVersion, TimeDiff}; use super::{ chain_info::ChainInfo, counting_format::{ConnectionId, Role}, - error::{ConnectionError, IoError}, + error::ConnectionError, event::{IncomingConnection, OutgoingConnection}, full_transport, + handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - message_pack_format::MessagePackFormat, - EstimatorWeights, Event, FullTransport, Message, Metrics, Payload, Transport, + BincodeFormat, EstimatorWeights, Event, FromIncoming, FullTransport, Message, Metrics, Payload, + Transport, }; + use crate::{ - components::small_network::{BincodeFormat, FromIncoming}, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -67,18 +61,6 @@ use crate::{ /// successfully handed over to the kernel for sending. pub(super) type MessageQueueItem

= (Arc>, Option>); -/// The outcome of the handshake process. -struct HandshakeOutcome { - /// A framed transport for peer. - transport: Transport, - /// Public address advertised by the peer. - public_addr: SocketAddr, - /// The public key the peer is validating with, if any. - peer_consensus_public_key: Option, - /// Holds the information whether the remote node is syncing. - is_peer_syncing: bool, -} - /// Low-level TLS connection function. /// /// Performs the actual TCP+TLS connection setup. @@ -348,158 +330,6 @@ pub(super) async fn server_setup_tls( )) } -/// Performs an IO-operation that can time out. -async fn io_timeout(duration: Duration, future: F) -> Result> -where - F: Future>, - E: StdError + 'static, -{ - tokio::time::timeout(duration, future) - .await - .map_err(|_elapsed| IoError::Timeout)? - .map_err(IoError::Error) -} - -/// Performs an IO-operation that can time out or result in a closed connection. -async fn io_opt_timeout(duration: Duration, future: F) -> Result> -where - F: Future>>, - E: StdError + 'static, -{ - let item = tokio::time::timeout(duration, future) - .await - .map_err(|_elapsed| IoError::Timeout)?; - - match item { - Some(Ok(value)) => Ok(value), - Some(Err(err)) => Err(IoError::Error(err)), - None => Err(IoError::UnexpectedEof), - } -} - -/// Negotiates a handshake between two peers. -async fn negotiate_handshake( - context: &NetworkContext, - transport: Transport, - connection_id: ConnectionId, -) -> Result -where - P: Payload, -{ - let mut encoder = MessagePackFormat; - - todo!() - - // // Manually encode a handshake. - // let handshake_message = context.chain_info.create_handshake::

( - // context.public_addr, - // context.consensus_keys.as_ref(), - // connection_id, - // context.is_syncing.load(Ordering::SeqCst), - // ); - - // let serialized_handshake_message = Pin::new(&mut encoder) - // .serialize(&Arc::new(handshake_message)) - // .map_err(ConnectionError::CouldNotEncodeOurHandshake)?; - - // // To ensure we are not dead-locking, we split the framed transport here and send the handshake - // // in a background task before awaiting one ourselves. This ensures we can make progress - // // regardless of the size of the outgoing handshake. - // let (mut sink, mut stream) = framed.split(); - - // let handshake_send = tokio::spawn(io_timeout(context.handshake_timeout.into(), async move { - // sink.send(serialized_handshake_message).await?; - // Ok(sink) - // })); - - // // The remote's message should be a handshake, but can technically be any message. We receive, - // // deserialize and check it. - // let remote_message_raw = io_opt_timeout(context.handshake_timeout.into(), stream.next()) - // .await - // .map_err(ConnectionError::HandshakeRecv)?; - - // // Ensure the handshake was sent correctly. - // let sink = handshake_send - // .await - // .map_err(ConnectionError::HandshakeSenderCrashed)? - // .map_err(ConnectionError::HandshakeSend)?; - - // let remote_message: Message

= Pin::new(&mut encoder) - // .deserialize(&remote_message_raw) - // .map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; - - // if let Message::Handshake { - // network_name, - // public_addr, - // protocol_version, - // consensus_certificate, - // is_syncing, - // chainspec_hash, - // } = remote_message - // { - // debug!(%protocol_version, "handshake received"); - - // // The handshake was valid, we can check the network name. - // if network_name != context.chain_info.network_name { - // return Err(ConnectionError::WrongNetwork(network_name)); - // } - - // // If there is a version mismatch, we treat it as a connection error. We do not ban peers - // // for this error, but instead rely on exponential backoff, as bans would result in issues - // // during upgrades where nodes may have a legitimate reason for differing versions. - // // - // // Since we are not using SemVer for versioning, we cannot make any assumptions about - // // compatibility, so we allow only exact version matches. - // if protocol_version != context.chain_info.protocol_version { - // if let Some(threshold) = context.tarpit_version_threshold { - // if protocol_version <= threshold { - // let mut rng = crate::new_rng(); - - // if rng.gen_bool(context.tarpit_chance as f64) { - // // If tarpitting is enabled, we hold open the connection for a specific - // // amount of time, to reduce load on other nodes and keep them from - // // reconnecting. - // info!(duration=?context.tarpit_duration, "randomly tarpitting node"); - // tokio::time::sleep(Duration::from(context.tarpit_duration)).await; - // } else { - // debug!(p = context.tarpit_chance, "randomly not tarpitting node"); - // } - // } - // } - // return Err(ConnectionError::IncompatibleVersion(protocol_version)); - // } - - // // We check the chainspec hash to ensure peer is using the same chainspec as us. - // // The remote message should always have a chainspec hash at this point since - // // we checked the protocol version previously. - // let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; - // if peer_chainspec_hash != context.chain_info.chainspec_hash { - // return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); - // } - - // let peer_consensus_public_key = consensus_certificate - // .map(|cert| { - // cert.validate(connection_id) - // .map_err(ConnectionError::InvalidConsensusCertificate) - // }) - // .transpose()?; - - // let framed_transport = sink - // .reunite(stream) - // .map_err(|_| ConnectionError::FailedToReuniteHandshakeSinkAndStream)?; - - // Ok(HandshakeOutcome { - // framed_transport, - // public_addr, - // peer_consensus_public_key, - // is_peer_syncing: is_syncing, - // }) - // } else { - // // Received a non-handshake, this is an error. - // Err(ConnectionError::DidNotSendHandshake) - // } -} - /// Runs the server core acceptor loop. pub(super) async fn server( context: Arc>, From 2ed4b5669f44289905d7f3775e09d131acdf7cf9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 31 Jul 2022 20:29:43 +0200 Subject: [PATCH 220/735] Write handshake-specific framing code --- node/src/components/small_network/error.rs | 43 ++++---- .../src/components/small_network/handshake.rs | 103 ++++++++++++++---- 2 files changed, 102 insertions(+), 44 deletions(-) diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index b79b3f9e06..1527b088b1 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -1,4 +1,4 @@ -use std::{error, io, net::SocketAddr, result, sync::Arc}; +use std::{io, net::SocketAddr, result, sync::Arc}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion, SecretKey}; @@ -147,18 +147,10 @@ pub enum ConnectionError { PeerCertificateInvalid(#[source] ValidationError), /// Failed to send handshake. #[error("handshake send failed")] - HandshakeSend( - #[serde(skip_serializing)] - #[source] - IoError, - ), + HandshakeSend(#[source] RawFrameIoError), /// Failed to receive handshake. #[error("handshake receive failed")] - HandshakeRecv( - #[serde(skip_serializing)] - #[source] - IoError, - ), + HandshakeRecv(#[source] RawFrameIoError), /// Peer reported a network name that does not match ours. #[error("peer is on different network: {0}")] WrongNetwork(String), @@ -212,19 +204,22 @@ pub enum ConnectionError { FailedToReuniteHandshakeSinkAndStream, } -/// IO operation that can time out or close. -#[derive(Debug, Error)] -pub enum IoError -where - E: error::Error + 'static, -{ - /// IO operation timed out. - #[error("io timeout")] - Timeout, - /// Non-timeout IO error. - #[error(transparent)] - Error(#[from] E), +/// IO error sending a raw frame. +/// +/// Raw frame IO is used only during the handshake, but comes with its own error conditions. +#[derive(Debug, Error, Serialize)] +pub enum RawFrameIoError { + /// Could not send or receive the raw frame. + #[error("io error")] + Io( + #[serde(skip_serializing)] + #[source] + io::Error, + ), /// Unexpected close/end-of-file. - #[error("closed unexpectedly")] + #[error("closed unexpectedly while reading raw frame")] UnexpectedEof, + /// Length limit violation. + #[error("advertised length of {0} exceeds configured maximum raw frame size")] + MaximumLengthExceeded(usize), } diff --git a/node/src/components/small_network/handshake.rs b/node/src/components/small_network/handshake.rs index ff2c68854e..fdac27fc4d 100644 --- a/node/src/components/small_network/handshake.rs +++ b/node/src/components/small_network/handshake.rs @@ -2,15 +2,18 @@ //! //! The handshake differs from the rest of the networking code since it is (almost) unmodified since //! version 1.0, to allow nodes to make informed decisions about blocking other nodes. +//! +//! This module contains an implementation for a minimal framing format based on 32-bit fixed size +//! big endian length prefixes. use std::{error::Error as StdError, net::SocketAddr, time::Duration}; use casper_types::PublicKey; -use futures::Future; +use futures::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt, Future}; use super::{ counting_format::ConnectionId, - error::{ConnectionError, IoError}, + error::{ConnectionError, RawFrameIoError}, message_pack_format::MessagePackFormat, tasks::NetworkContext, Payload, Transport, @@ -28,33 +31,60 @@ pub(super) struct HandshakeOutcome { pub(super) is_peer_syncing: bool, } -/// Performs an IO-operation that can time out. -pub(super) async fn io_timeout(duration: Duration, future: F) -> Result> +/// Reads a 32 byte big endian integer prefix, followed by an actual raw message. +async fn read_length_prefixed_frame( + max_length: u32, + stream: &mut R, + data: &[u8], +) -> Result, RawFrameIoError> where - F: Future>, - E: StdError + 'static, + R: AsyncRead + Unpin, { - tokio::time::timeout(duration, future) + let mut length_prefix_raw: [u8; 4] = [0; 4]; + stream + .read_exact(&mut length_prefix_raw) + .await + .map_err(RawFrameIoError::Io)?; + + let length = u32::from_ne_bytes(length_prefix_raw); + + if length > max_length { + return Err(RawFrameIoError::MaximumLengthExceeded(length as usize)); + } + + let mut raw = Vec::new(); // not preallocating, to make DOS attacks harder. + + // We can now read the raw frame and return. + stream + .take(length as u64) + .read_to_end(&mut raw) .await - .map_err(|_elapsed| IoError::Timeout)? - .map_err(IoError::Error) + .map_err(RawFrameIoError::Io)?; + + Ok(raw) } -/// Performs an IO-operation that can time out or result in a closed connection. -pub(super) async fn io_opt_timeout(duration: Duration, future: F) -> Result> +/// Writes data to an async writer, prefixing it with the 32 bytes big endian message length. +/// +/// Output will be flushed after sending. +async fn write_length_prefixed_frame(stream: &mut W, data: &[u8]) -> Result<(), RawFrameIoError> where - F: Future>>, - E: StdError + 'static, + W: AsyncWrite + Unpin, { - let item = tokio::time::timeout(duration, future) - .await - .map_err(|_elapsed| IoError::Timeout)?; + if data.len() > u32::MAX as usize { + return Err(RawFrameIoError::MaximumLengthExceeded(data.len())); + } - match item { - Some(Ok(value)) => Ok(value), - Some(Err(err)) => Err(IoError::Error(err)), - None => Err(IoError::UnexpectedEof), + async move { + stream.write_all(&(data.len() as u32).to_ne_bytes()).await?; + stream.write_all(&data).await?; + stream.flush().await?; + Ok(()) } + .await + .map_err(RawFrameIoError::Io)?; + + Ok(()) } /// Negotiates a handshake between two peers. @@ -179,3 +209,36 @@ where todo!() } + +#[cfg(test)] +mod tests { + #[test] + fn frame_reader_reads_without_consuming_extra_bytes() { + todo!("implement test"); + } + + #[test] + fn frame_reader_does_not_allow_exceeding_maximum_size() { + todo!("implement test"); + } + + #[test] + fn frame_reader_handles_0_sized_read() { + todo!("implement test"); + } + + #[test] + fn frame_reader_handles_early_eof() { + todo!("implement test"); + } + + #[test] + fn frame_writer_writes_frames_correctly() { + todo!("implement test"); + } + + #[test] + fn frame_writer_handles_0_size() { + todo!("implement test"); + } +} From f6041395e5afe946aa46841de560b464193ee322 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 13:43:38 +0200 Subject: [PATCH 221/735] Restore implementation of `negotiate_handshake` --- node/src/components/small_network.rs | 1 - node/src/components/small_network/error.rs | 13 +- .../src/components/small_network/handshake.rs | 245 +++++++++--------- 3 files changed, 131 insertions(+), 128 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 0ee9266f7d..3261fc63cd 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -647,7 +647,6 @@ where // These errors are potential bugs on our side. ConnectionError::HandshakeSenderCrashed(_) - | ConnectionError::FailedToReuniteHandshakeSinkAndStream | ConnectionError::CouldNotEncodeOurHandshake(_) => false, // These could be candidates for blocking, but for now we decided not to. diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 1527b088b1..2c1539c6b2 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -172,7 +172,7 @@ pub enum ConnectionError { CouldNotEncodeOurHandshake( #[serde(skip_serializing)] #[source] - io::Error, + rmp_serde::encode::Error, ), /// A background sender for our handshake panicked or crashed. /// @@ -188,7 +188,7 @@ pub enum ConnectionError { InvalidRemoteHandshakeMessage( #[serde(skip_serializing)] #[source] - io::Error, + rmp_serde::decode::Error, ), /// The peer sent a consensus certificate, but it was invalid. #[error("invalid consensus certificate")] @@ -197,11 +197,6 @@ pub enum ConnectionError { #[source] crypto::Error, ), - /// Failed to reunite handshake sink/stream. - /// - /// This is usually a bug. - #[error("handshake sink/stream could not be reunited")] - FailedToReuniteHandshakeSinkAndStream, } /// IO error sending a raw frame. @@ -216,9 +211,7 @@ pub enum RawFrameIoError { #[source] io::Error, ), - /// Unexpected close/end-of-file. - #[error("closed unexpectedly while reading raw frame")] - UnexpectedEof, + /// Length limit violation. #[error("advertised length of {0} exceeds configured maximum raw frame size")] MaximumLengthExceeded(usize), diff --git a/node/src/components/small_network/handshake.rs b/node/src/components/small_network/handshake.rs index fdac27fc4d..cecc07b807 100644 --- a/node/src/components/small_network/handshake.rs +++ b/node/src/components/small_network/handshake.rs @@ -6,17 +6,20 @@ //! This module contains an implementation for a minimal framing format based on 32-bit fixed size //! big endian length prefixes. -use std::{error::Error as StdError, net::SocketAddr, time::Duration}; +use std::{net::SocketAddr, sync::atomic::Ordering, time::Duration}; use casper_types::PublicKey; -use futures::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt, Future}; +use rand::Rng; +use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}; + +use serde::{de::DeserializeOwned, Serialize}; +use tracing::{debug, info}; use super::{ counting_format::ConnectionId, error::{ConnectionError, RawFrameIoError}, - message_pack_format::MessagePackFormat, tasks::NetworkContext, - Payload, Transport, + Message, Payload, Transport, }; /// The outcome of the handshake process. @@ -35,7 +38,6 @@ pub(super) struct HandshakeOutcome { async fn read_length_prefixed_frame( max_length: u32, stream: &mut R, - data: &[u8], ) -> Result, RawFrameIoError> where R: AsyncRead + Unpin, @@ -87,6 +89,22 @@ where Ok(()) } +/// Serializes an item with the encoding settings specified for handshakes. +pub(super) fn serialize(item: &T) -> Result, rmp_serde::encode::Error> +where + T: Serialize, +{ + rmp_serde::to_vec(item) +} + +/// Deserialize an item with the encoding settings specified for handshakes. +fn deserialize(raw: &[u8]) -> Result +where + T: DeserializeOwned, +{ + rmp_serde::from_slice(raw) +} + /// Negotiates a handshake between two peers. pub(super) async fn negotiate_handshake( context: &NetworkContext, @@ -96,118 +114,111 @@ pub(super) async fn negotiate_handshake( where P: Payload, { - let mut encoder = MessagePackFormat; - - // // Manually encode a handshake. - // let handshake_message = context.chain_info.create_handshake::

( - // context.public_addr, - // context.consensus_keys.as_ref(), - // connection_id, - // context.is_syncing.load(Ordering::SeqCst), - // ); - - // let serialized_handshake_message = Pin::new(&mut encoder) - // .serialize(&Arc::new(handshake_message)) - // .map_err(ConnectionError::CouldNotEncodeOurHandshake)?; - - // // To ensure we are not dead-locking, we split the framed transport here and send the handshake - // // in a background task before awaiting one ourselves. This ensures we can make progress - // // regardless of the size of the outgoing handshake. - // let (mut sink, mut stream) = framed.split(); - - // let handshake_send = tokio::spawn(io_timeout(context.handshake_timeout.into(), async move { - // sink.send(serialized_handshake_message).await?; - // Ok(sink) - // })); - - // // The remote's message should be a handshake, but can technically be any message. We receive, - // // deserialize and check it. - // let remote_message_raw = io_opt_timeout(context.handshake_timeout.into(), stream.next()) - // .await - // .map_err(ConnectionError::HandshakeRecv)?; - - // // Ensure the handshake was sent correctly. - // let sink = handshake_send - // .await - // .map_err(ConnectionError::HandshakeSenderCrashed)? - // .map_err(ConnectionError::HandshakeSend)?; - - // let remote_message: Message

= Pin::new(&mut encoder) - // .deserialize(&remote_message_raw) - // .map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; - - // if let Message::Handshake { - // network_name, - // public_addr, - // protocol_version, - // consensus_certificate, - // is_syncing, - // chainspec_hash, - // } = remote_message - // { - // debug!(%protocol_version, "handshake received"); - - // // The handshake was valid, we can check the network name. - // if network_name != context.chain_info.network_name { - // return Err(ConnectionError::WrongNetwork(network_name)); - // } - - // // If there is a version mismatch, we treat it as a connection error. We do not ban peers - // // for this error, but instead rely on exponential backoff, as bans would result in issues - // // during upgrades where nodes may have a legitimate reason for differing versions. - // // - // // Since we are not using SemVer for versioning, we cannot make any assumptions about - // // compatibility, so we allow only exact version matches. - // if protocol_version != context.chain_info.protocol_version { - // if let Some(threshold) = context.tarpit_version_threshold { - // if protocol_version <= threshold { - // let mut rng = crate::new_rng(); - - // if rng.gen_bool(context.tarpit_chance as f64) { - // // If tarpitting is enabled, we hold open the connection for a specific - // // amount of time, to reduce load on other nodes and keep them from - // // reconnecting. - // info!(duration=?context.tarpit_duration, "randomly tarpitting node"); - // tokio::time::sleep(Duration::from(context.tarpit_duration)).await; - // } else { - // debug!(p = context.tarpit_chance, "randomly not tarpitting node"); - // } - // } - // } - // return Err(ConnectionError::IncompatibleVersion(protocol_version)); - // } - - // // We check the chainspec hash to ensure peer is using the same chainspec as us. - // // The remote message should always have a chainspec hash at this point since - // // we checked the protocol version previously. - // let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; - // if peer_chainspec_hash != context.chain_info.chainspec_hash { - // return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); - // } - - // let peer_consensus_public_key = consensus_certificate - // .map(|cert| { - // cert.validate(connection_id) - // .map_err(ConnectionError::InvalidConsensusCertificate) - // }) - // .transpose()?; - - // let framed_transport = sink - // .reunite(stream) - // .map_err(|_| ConnectionError::FailedToReuniteHandshakeSinkAndStream)?; - - // Ok(HandshakeOutcome { - // framed_transport, - // public_addr, - // peer_consensus_public_key, - // is_peer_syncing: is_syncing, - // }) - // } else { - // // Received a non-handshake, this is an error. - // Err(ConnectionError::DidNotSendHandshake) - // } - - todo!() + // Manually encode a handshake. + let handshake_message = context.chain_info.create_handshake::

( + context.public_addr, + context.consensus_keys.as_ref(), + connection_id, + context.is_syncing.load(Ordering::SeqCst), + ); + + let serialized_handshake_message = + serialize(&handshake_message).map_err(ConnectionError::CouldNotEncodeOurHandshake)?; + + // To ensure we are not dead-locking, we split the transport here and send the handshake in a + // background task before awaiting one ourselves. This ensures we can make progress regardless + // of the size of the outgoing handshake. + let (mut read_half, mut write_half) = tokio::io::split(transport); + + let handshake_send = tokio::spawn(async move { + write_length_prefixed_frame(&mut write_half, &serialized_handshake_message).await?; + Ok::<_, RawFrameIoError>(write_half) + }); + + // The remote's message should be a handshake, but can technically be any message. We receive, + // deserialize and check it. + let remote_message_raw = + read_length_prefixed_frame(context.chain_info.maximum_net_message_size, &mut read_half) + .await + .map_err(ConnectionError::HandshakeRecv)?; + + // Ensure the handshake was sent correctly. + let write_half = handshake_send + .await + .map_err(ConnectionError::HandshakeSenderCrashed)? + .map_err(ConnectionError::HandshakeSend)?; + + let remote_message: Message

= + deserialize(&remote_message_raw).map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; + + if let Message::Handshake { + network_name, + public_addr, + protocol_version, + consensus_certificate, + is_syncing, + chainspec_hash, + } = remote_message + { + debug!(%protocol_version, "handshake received"); + + // The handshake was valid, we can check the network name. + if network_name != context.chain_info.network_name { + return Err(ConnectionError::WrongNetwork(network_name)); + } + + // If there is a version mismatch, we treat it as a connection error. We do not ban peers + // for this error, but instead rely on exponential backoff, as bans would result in issues + // during upgrades where nodes may have a legitimate reason for differing versions. + // + // Since we are not using SemVer for versioning, we cannot make any assumptions about + // compatibility, so we allow only exact version matches. + if protocol_version != context.chain_info.protocol_version { + if let Some(threshold) = context.tarpit_version_threshold { + if protocol_version <= threshold { + let mut rng = crate::new_rng(); + + if rng.gen_bool(context.tarpit_chance as f64) { + // If tarpitting is enabled, we hold open the connection for a specific + // amount of time, to reduce load on other nodes and keep them from + // reconnecting. + info!(duration=?context.tarpit_duration, "randomly tarpitting node"); + tokio::time::sleep(Duration::from(context.tarpit_duration)).await; + } else { + debug!(p = context.tarpit_chance, "randomly not tarpitting node"); + } + } + } + return Err(ConnectionError::IncompatibleVersion(protocol_version)); + } + + // We check the chainspec hash to ensure peer is using the same chainspec as us. + // The remote message should always have a chainspec hash at this point since + // we checked the protocol version previously. + let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; + if peer_chainspec_hash != context.chain_info.chainspec_hash { + return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); + } + + let peer_consensus_public_key = consensus_certificate + .map(|cert| { + cert.validate(connection_id) + .map_err(ConnectionError::InvalidConsensusCertificate) + }) + .transpose()?; + + let transport = read_half.unsplit(write_half); + + Ok(HandshakeOutcome { + transport, + public_addr, + peer_consensus_public_key, + is_peer_syncing: is_syncing, + }) + } else { + // Received a non-handshake, this is an error. + Err(ConnectionError::DidNotSendHandshake) + } } #[cfg(test)] From 1bff31c1ce882029cc6226a22e96ce7319b931a8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 13:49:12 +0200 Subject: [PATCH 222/735] Remove `message_pack_format` module --- node/src/components/small_network.rs | 3 +- .../src/components/small_network/handshake.rs | 4 +- node/src/components/small_network/message.rs | 20 ++------ .../small_network/message_pack_format.rs | 47 ------------------- 4 files changed, 7 insertions(+), 67 deletions(-) delete mode 100644 node/src/components/small_network/message_pack_format.rs diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 3261fc63cd..2cf72f5e89 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -30,10 +30,9 @@ mod counting_format; mod error; mod event; mod gossiped_address; -mod handshake; +pub(crate) mod handshake; mod limiter; mod message; -mod message_pack_format; mod metrics; mod outgoing; mod symmetry; diff --git a/node/src/components/small_network/handshake.rs b/node/src/components/small_network/handshake.rs index cecc07b807..1f1bfd030b 100644 --- a/node/src/components/small_network/handshake.rs +++ b/node/src/components/small_network/handshake.rs @@ -90,7 +90,7 @@ where } /// Serializes an item with the encoding settings specified for handshakes. -pub(super) fn serialize(item: &T) -> Result, rmp_serde::encode::Error> +pub(crate) fn serialize(item: &T) -> Result, rmp_serde::encode::Error> where T: Serialize, { @@ -98,7 +98,7 @@ where } /// Deserialize an item with the encoding settings specified for handshakes. -fn deserialize(raw: &[u8]) -> Result +pub(crate) fn deserialize(raw: &[u8]) -> Result where T: DeserializeOwned, { diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 77d682effc..86b292e9f4 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -403,14 +403,12 @@ pub struct EstimatorWeights { // We use a variety of weird names in these tests. #[allow(non_camel_case_types)] mod tests { - use std::{net::SocketAddr, pin::Pin}; + use std::net::SocketAddr; - use bytes::BytesMut; use casper_types::ProtocolVersion; use serde::{de::DeserializeOwned, Deserialize, Serialize}; - use tokio_serde::{Deserializer, Serializer}; - use crate::{components::small_network::message_pack_format::MessagePackFormat, protocol}; + use crate::{components::small_network::handshake, protocol}; use super::*; @@ -494,22 +492,12 @@ mod tests { /// Serialize a message using the standard serialization method for handshakes. fn serialize_message(msg: &M) -> Vec { - let mut serializer = MessagePackFormat; - - Pin::new(&mut serializer) - .serialize(&msg) - .expect("handshake serialization failed") - .into_iter() - .collect() + handshake::serialize(msg).expect("handshake serialization failed") } /// Deserialize a message using the standard deserialization method for handshakes. fn deserialize_message(serialized: &[u8]) -> M { - let mut deserializer = MessagePackFormat; - - Pin::new(&mut deserializer) - .deserialize(&BytesMut::from(serialized)) - .expect("message deserialization failed") + handshake::deserialize(serialized).expect("message deserialization failed") } /// Given a message `from` of type `F`, serializes it, then deserializes it as `T`. diff --git a/node/src/components/small_network/message_pack_format.rs b/node/src/components/small_network/message_pack_format.rs deleted file mode 100644 index 27a9ee2457..0000000000 --- a/node/src/components/small_network/message_pack_format.rs +++ /dev/null @@ -1,47 +0,0 @@ -//! Message pack wire format encoder. -//! -//! This module is used to pin the correct version of message pack used throughout the codebase to -//! our network decoder via `Cargo.toml`; using `tokio_serde::MessagePack` would instead tie it -//! to the dependency specified in `tokio_serde`'s `Cargo.toml`. - -use std::{ - io::{self, Cursor}, - pin::Pin, -}; - -use bytes::{Bytes, BytesMut}; -use serde::{Deserialize, Serialize}; -use tokio_serde::{Deserializer, Serializer}; - -/// msgpack encoder/decoder for messages. -#[derive(Debug)] -pub struct MessagePackFormat; - -impl Serializer for MessagePackFormat -where - M: Serialize, -{ - // Note: We cast to `io::Error` because of the `Codec::Error: Into` - // requirement. - type Error = io::Error; - - #[inline] - fn serialize(self: Pin<&mut Self>, item: &M) -> Result { - rmp_serde::to_vec(item) - .map(Into::into) - .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err)) - } -} - -impl Deserializer for MessagePackFormat -where - for<'de> M: Deserialize<'de>, -{ - type Error = io::Error; - - #[inline] - fn deserialize(self: Pin<&mut Self>, src: &BytesMut) -> Result { - rmp_serde::from_read(Cursor::new(src)) - .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err)) - } -} From 0513c31f3a421435fa3a8b51bef1ae60331a9c69 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 15:42:29 +0200 Subject: [PATCH 223/735] Use `muxink` for sending unframed data on outgoing connections --- Cargo.lock | 2 ++ node/Cargo.toml | 5 +-- node/src/components/small_network.rs | 9 ++++-- node/src/components/small_network/event.rs | 34 ++++++++++++++------ node/src/components/small_network/message.rs | 2 +- node/src/components/small_network/tasks.rs | 23 ++++++------- 6 files changed, 50 insertions(+), 25 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index d1626efbcf..70df2feaa4 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -556,6 +556,7 @@ dependencies = [ "linked-hash-map", "lmdb", "log", + "muxink", "num", "num-derive", "num-rational 0.4.1", @@ -4698,6 +4699,7 @@ checksum = "36943ee01a6d67977dd3f84a5a1d2efeb4ada3a1ae771cadfaa535d9d9fc6507" dependencies = [ "bytes", "futures-core", + "futures-io", "futures-sink", "log", "pin-project-lite", diff --git a/node/Cargo.toml b/node/Cargo.toml index e4912c4069..891a33f750 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -32,7 +32,7 @@ either = "1" enum-iterator = "0.6.0" erased-serde = "0.3.18" fs2 = "0.4.3" -futures = "0.3.5" +futures = { version = "0.3.21" } futures-io = "0.3.5" hex-buffer-serde = "0.3.0" hex_fmt = "0.3.0" @@ -44,6 +44,7 @@ libc = "0.2.66" linked-hash-map = "0.5.3" lmdb = "0.8.0" log = { version = "0.4.8", features = ["std", "serde", "kv_unstable"] } +muxink = { path = "../muxink" } num = { version = "0.4.0", default-features = false } num-derive = "0.3.0" num-rational = { version = "0.4.0", features = ["serde"] } @@ -79,7 +80,7 @@ tokio = { version = "1", features = ["macros", "net", "rt-multi-thread", "sync", tokio-openssl = "0.6.1" tokio-serde = { version = "0.8.0", features = ["bincode"] } tokio-stream = { version = "0.1.4", features = ["sync"] } -tokio-util = { version = "0.6.4", features = ["codec"] } +tokio-util = { version = "0.6.4", features = ["codec", "compat"] } toml = "0.5.6" tower = { version = "0.4.6", features = ["limit"] } tracing = "0.1.18" diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 2cf72f5e89..41dcc1f6d3 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -56,6 +56,7 @@ use std::{ use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; +use muxink::{codec::bincode::BincodeEncoder, io::FrameWriter}; use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; use prometheus::Registry; @@ -71,7 +72,7 @@ use tokio::{ task::JoinHandle, }; use tokio_openssl::SslStream; -use tokio_util::codec::LengthDelimitedCodec; +use tokio_util::{codec::LengthDelimitedCodec, compat::Compat}; use tracing::{debug, error, info, trace, warn, Instrument, Span}; use casper_types::{EraId, PublicKey}; @@ -204,7 +205,7 @@ where impl SmallNetwork where - P: Payload + 'static, + P: Payload, REv: ReactorEvent + From> + FromIncoming

@@ -1214,6 +1215,10 @@ impl From<&SmallNetworkIdentity> for NodeId { /// Transport type alias for base encrypted connections. type Transport = SslStream; +/// The outgoing message sink of an outgoing connection. +type OutgoingSink

= + FrameWriter, BincodeEncoder>, Compat>>; + /// A framed transport for `Message`s. pub(crate) type FullTransport

= tokio_serde::Framed< tokio_util::codec::Framed, diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index d36c32e265..8b42489ddf 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -2,17 +2,18 @@ use std::{ fmt::{self, Debug, Display, Formatter}, io, mem, net::SocketAddr, - sync::Arc, }; use casper_types::PublicKey; use derive_more::From; -use futures::stream::{SplitSink, SplitStream}; +use futures::stream::SplitStream; use serde::Serialize; use static_assertions::const_assert; use tracing::Span; -use super::{error::ConnectionError, FullTransport, GossipedAddress, Message, NodeId}; +use super::{ + error::ConnectionError, FullTransport, GossipedAddress, Message, NodeId, OutgoingSink, +}; use crate::{ effect::{ announcements::{ @@ -28,7 +29,11 @@ const_assert!(_SMALL_NETWORK_EVENT_SIZE < 90); /// A small network event. #[derive(Debug, From, Serialize)] -pub(crate) enum Event

{ +pub(crate) enum Event

+where + // Note: See notes on the `OutgoingConnection`'s `P: Serialize` trait bound for details. + P: Serialize, +{ /// The TLS handshake completed on the incoming connection. IncomingConnection { incoming: Box>, @@ -115,7 +120,10 @@ impl From for Event { } } -impl Display for Event

{ +impl

Display for Event

+where + P: Display + Serialize, +{ fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { Event::IncomingConnection { incoming, span: _ } => { @@ -231,7 +239,12 @@ impl

Display for IncomingConnection

{ /// Outcome of an outgoing connection attempt. #[derive(Debug, Serialize)] -pub(crate) enum OutgoingConnection

{ +pub(crate) enum OutgoingConnection

+where + // Note: The `P: Serialize` trait bound should not be required, but the derive macro seems to + // not handle the type parameter properly when `skip_serializing` is used + P: Serialize, +{ /// The outgoing connection failed early on, before a peer's [`NodeId`] could be determined. FailedEarly { /// Address that was dialed. @@ -259,14 +272,17 @@ pub(crate) enum OutgoingConnection

{ /// The public key the peer is validating with, if any. peer_consensus_public_key: Option, /// Sink for outgoing messages. - #[serde(skip_serializing)] - sink: SplitSink, Arc>>, + #[serde(skip)] + sink: OutgoingSink

, /// Holds the information whether the remote node is syncing. is_syncing: bool, }, } -impl

Display for OutgoingConnection

{ +impl

Display for OutgoingConnection

+where + P: Serialize, +{ fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { OutgoingConnection::FailedEarly { peer_addr, error } => { diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 86b292e9f4..f78f15e6d2 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -326,7 +326,7 @@ impl Display for MessageKind { /// Payloads are what is transferred across the network outside of control messages from the /// networking component itself. pub(crate) trait Payload: - Serialize + DeserializeOwned + Clone + Debug + Display + Send + Sync + 'static + Serialize + DeserializeOwned + Clone + Debug + Display + Send + Sync + Unpin + 'static { /// Classifies the payload based on its contents. fn classify(&self) -> MessageKind; diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 78b658cec3..8d8c57e3f5 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -11,9 +11,10 @@ use std::{ use bincode::Options; use futures::{ future::{self, Either}, - stream::{SplitSink, SplitStream}, + stream::SplitStream, SinkExt, StreamExt, }; +use muxink::{codec::bincode::BincodeEncoder, io::FrameWriter}; use openssl::{ pkey::{PKey, Private}, ssl::Ssl, @@ -48,6 +49,7 @@ use super::{ }; use crate::{ + components::small_network::OutgoingSink, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -150,14 +152,12 @@ where warn!(%public_addr, %peer_addr, "peer advertises a different public address than what we connected to"); } - // Setup full framed transport, then close down receiving end of the transport. - let full_transport = full_transport::

( - context.net_metrics.clone(), - connection_id, - transport, - Role::Dialer, - ); - let (sink, _stream) = full_transport.split(); + // `rust-openssl` does not support the futures 0.3 `AsyncWrite` trait (it uses the + // tokio built-in version instead). The compat layer fixes that. + let compat_stream = + tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); + + let sink: OutgoingSink

= FrameWriter::new(BincodeEncoder::new(), compat_stream); OutgoingConnection::Established { peer_addr, @@ -544,7 +544,7 @@ where /// Reads from a channel and sends all messages, until the stream is closed or an error occurs. pub(super) async fn message_sender

( mut queue: UnboundedReceiver>, - mut sink: SplitSink, Arc>>, + mut sink: OutgoingSink

, limiter: Box, counter: IntGauge, ) where @@ -565,7 +565,8 @@ pub(super) async fn message_sender

( }; limiter.request_allowance(estimated_wire_size).await; - let mut outcome = sink.send(message).await; + let todo_remove_copy = message.as_ref().clone(); + let mut outcome = sink.send(todo_remove_copy).await; // Notify via responder that the message has been buffered by the kernel. if let Some(auto_closing_responder) = opt_responder { From 6fa2eb085efdb684f2083ccd1f383cd8ad58f6c9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 15:44:47 +0200 Subject: [PATCH 224/735] Do not clone data in `Arc` when sending --- node/src/components/small_network.rs | 2 +- node/src/components/small_network/tasks.rs | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 41dcc1f6d3..a022ab07c4 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -1217,7 +1217,7 @@ type Transport = SslStream; /// The outgoing message sink of an outgoing connection. type OutgoingSink

= - FrameWriter, BincodeEncoder>, Compat>>; + FrameWriter>, BincodeEncoder>>, Compat>>; /// A framed transport for `Message`s. pub(crate) type FullTransport

= tokio_serde::Framed< diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 8d8c57e3f5..c1f57df7f9 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -565,8 +565,7 @@ pub(super) async fn message_sender

( }; limiter.request_allowance(estimated_wire_size).await; - let todo_remove_copy = message.as_ref().clone(); - let mut outcome = sink.send(todo_remove_copy).await; + let mut outcome = sink.send(message).await; // Notify via responder that the message has been buffered by the kernel. if let Some(auto_closing_responder) = opt_responder { From bac9acbb5ba3a172903fde7712da57355957b450 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 1 Aug 2022 15:55:27 +0200 Subject: [PATCH 225/735] Length-delimit outgoing frames --- node/src/components/small_network.rs | 13 ++++++++++--- node/src/components/small_network/tasks.rs | 9 +++++++-- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index a022ab07c4..50f0730fd0 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -54,9 +54,13 @@ use std::{ time::{Duration, Instant}, }; +use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; -use muxink::{codec::bincode::BincodeEncoder, io::FrameWriter}; +use muxink::{ + codec::{bincode::BincodeEncoder, length_delimited::LengthDelimited, TranscodingSink}, + io::FrameWriter, +}; use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; use prometheus::Registry; @@ -1216,8 +1220,11 @@ impl From<&SmallNetworkIdentity> for NodeId { type Transport = SslStream; /// The outgoing message sink of an outgoing connection. -type OutgoingSink

= - FrameWriter>, BincodeEncoder>>, Compat>>; +type OutgoingSink

= TranscodingSink< + BincodeEncoder>>, + Arc>, + FrameWriter>>, +>; /// A framed transport for `Message`s. pub(crate) type FullTransport

= tokio_serde::Framed< diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index c1f57df7f9..2783d97d80 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -14,7 +14,11 @@ use futures::{ stream::SplitStream, SinkExt, StreamExt, }; -use muxink::{codec::bincode::BincodeEncoder, io::FrameWriter}; +use muxink::{ + codec::{bincode::BincodeEncoder, length_delimited::LengthDelimited}, + io::FrameWriter, + SinkMuxExt, +}; use openssl::{ pkey::{PKey, Private}, ssl::Ssl, @@ -157,7 +161,8 @@ where let compat_stream = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); - let sink: OutgoingSink

= FrameWriter::new(BincodeEncoder::new(), compat_stream); + let sink: OutgoingSink

= FrameWriter::new(LengthDelimited, compat_stream) + .with_transcoder(BincodeEncoder::new()); OutgoingConnection::Established { peer_addr, From 18b9a670b7e2bce2f6ace45bdb5f8f7b87337c5a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 16:34:39 +0200 Subject: [PATCH 226/735] Make `message_reader` use `muxink` properly --- node/src/components/small_network.rs | 18 +++++-- node/src/components/small_network/event.rs | 7 +-- node/src/components/small_network/tasks.rs | 59 ++++++++++++++-------- 3 files changed, 55 insertions(+), 29 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 50f0730fd0..a3a89d1d28 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -58,8 +58,12 @@ use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use muxink::{ - codec::{bincode::BincodeEncoder, length_delimited::LengthDelimited, TranscodingSink}, - io::FrameWriter, + codec::{ + bincode::{BincodeDecoder, BincodeEncoder}, + length_delimited::LengthDelimited, + ResultTranscoder, TranscodingSink, TranscodingStream, + }, + io::{FrameReader, FrameWriter}, }; use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; @@ -100,7 +104,7 @@ use self::{ metrics::Metrics, outgoing::{DialOutcome, DialRequest, OutgoingConfig, OutgoingManager}, symmetry::ConnectionSymmetry, - tasks::{MessageQueueItem, NetworkContext}, + tasks::{MessageQueueItem, MessageReaderError, NetworkContext}, }; use crate::{ @@ -608,7 +612,7 @@ where fn handle_incoming_closed( &mut self, - result: io::Result<()>, + result: core::result::Result<(), MessageReaderError>, peer_id: Box, peer_addr: SocketAddr, span: Span, @@ -1226,6 +1230,12 @@ type OutgoingSink

= TranscodingSink< FrameWriter>>, >; +/// The incoming message stream of an incoming connection. +type IncomingStream

= TranscodingStream< + ResultTranscoder>, io::Error>, + FrameReader>>, +>; + /// A framed transport for `Message`s. pub(crate) type FullTransport

= tokio_serde::Framed< tokio_util::codec::Framed, diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 8b42489ddf..45fdc4b212 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -12,7 +12,8 @@ use static_assertions::const_assert; use tracing::Span; use super::{ - error::ConnectionError, FullTransport, GossipedAddress, Message, NodeId, OutgoingSink, + error::ConnectionError, tasks::MessageReaderError, FullTransport, GossipedAddress, + IncomingStream, Message, NodeId, OutgoingSink, }; use crate::{ effect::{ @@ -52,7 +53,7 @@ where /// Incoming connection closed. IncomingClosed { #[serde(skip_serializing)] - result: io::Result<()>, + result: Result<(), MessageReaderError>, peer_id: Box, peer_addr: SocketAddr, #[serde(skip_serializing)] @@ -198,7 +199,7 @@ pub(crate) enum IncomingConnection

{ peer_consensus_public_key: Option, /// Stream of incoming messages. for incoming connections. #[serde(skip_serializing)] - stream: SplitStream>, + stream: IncomingStream

, }, } diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 2783d97d80..7d10f66fbe 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -12,12 +12,15 @@ use bincode::Options; use futures::{ future::{self, Either}, stream::SplitStream, - SinkExt, StreamExt, + SinkExt, Stream, StreamExt, TryStreamExt, }; use muxink::{ - codec::{bincode::BincodeEncoder, length_delimited::LengthDelimited}, - io::FrameWriter, - SinkMuxExt, + codec::{ + bincode::{BincodeDecoder, BincodeEncoder}, + length_delimited::LengthDelimited, + TranscodingIoError, TranscodingStream, + }, + io::{FrameReader, FrameWriter}, }; use openssl::{ pkey::{PKey, Private}, @@ -26,6 +29,7 @@ use openssl::{ }; use prometheus::IntGauge; use serde::{de::DeserializeOwned, Deserialize, Serialize}; +use thiserror::Error; use tokio::{ net::TcpStream, sync::{mpsc::UnboundedReceiver, watch, Semaphore}, @@ -53,7 +57,7 @@ use super::{ }; use crate::{ - components::small_network::OutgoingSink, + components::small_network::{IncomingStream, OutgoingSink}, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -161,6 +165,7 @@ where let compat_stream = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); + use muxink::SinkMuxExt; let sink: OutgoingSink

= FrameWriter::new(LengthDelimited, compat_stream) .with_transcoder(BincodeEncoder::new()); @@ -274,15 +279,17 @@ where Span::current().record("validator_id", &field::display(public_key)); } - // Establish full transport and close the receiving end. - let full_transport = full_transport::

( - context.net_metrics.clone(), - connection_id, - transport, - Role::Listener, - ); + // TODO: Removal of `CountingTransport` here means some functionality has to be restored. + + // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the + // tokio built-in version instead). The compat layer fixes that. + use muxink::StreamMuxExt; // TODO: Move, once methods are renamed. + let compat_stream = tokio_util::compat::TokioAsyncReadCompatExt::compat(transport); - let (_sink, stream) = full_transport.split(); + // TODO: We need to split the stream here eventually. Right now, this is safe since the + // reader only uses one direction. + let stream: IncomingStream

= FrameReader::new(LengthDelimited, compat_stream, 4096) + .and_then_transcode(BincodeDecoder::new()); IncomingConnection::Established { peer_addr, @@ -408,17 +415,28 @@ pub(super) async fn server( } } +/// An error produced by the message reader. +#[derive(Debug, Error)] +pub enum MessageReaderError { + /// The semaphore that limits trie demands was closed unexpectedly. + #[error("demand limiter semaphore closed unexpectedly")] + UnexpectedSemaphoreClose, + /// The message receival stack returned an error. + #[error("message receive error")] + ReceiveError(TranscodingIoError), +} + /// Network message reader. /// /// Schedules all received messages until the stream is closed or an error occurs. pub(super) async fn message_reader( context: Arc>, - mut stream: SplitStream>, + mut stream: IncomingStream

, limiter: Box, mut close_incoming_receiver: watch::Receiver<()>, peer_id: NodeId, span: Span, -) -> io::Result<()> +) -> Result<(), MessageReaderError> where P: DeserializeOwned + Send + Display + Payload, REv: From> + FromIncoming

+ From> + Send, @@ -450,12 +468,7 @@ where // explicitly be closed for acquisition to fail, which we // never do. If this happens, there is a bug in the code; // we exit with an error and close the connection. - .map_err(|_| { - io::Error::new( - io::ErrorKind::Other, - "demand limiter semaphore closed unexpectedly", - ) - })?; + .map_err(|_| MessageReaderError::UnexpectedSemaphoreClose)?; Metrics::record_trie_request_start(&context.net_metrics); @@ -521,11 +534,13 @@ where } } Err(err) => { + // TODO: Consider not logging the error here, as it will be logged in the + // same span in the component proper. warn!( err = display_error(&err), "receiving message failed, closing connection" ); - return Err(err); + return Err(MessageReaderError::ReceiveError(err)); } } } From e5c74522685eee24d51ed092fc2971f6882f9411 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 16:36:25 +0200 Subject: [PATCH 227/735] Remove now obsolete `FullTransport` --- node/src/components/small_network.rs | 30 ---------------------- node/src/components/small_network/event.rs | 4 +-- node/src/components/small_network/tasks.rs | 4 +-- 3 files changed, 3 insertions(+), 35 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index a3a89d1d28..73855d741f 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -1236,36 +1236,6 @@ type IncomingStream

= TranscodingStream< FrameReader>>, >; -/// A framed transport for `Message`s. -pub(crate) type FullTransport

= tokio_serde::Framed< - tokio_util::codec::Framed, - Message

, - Arc>, - CountingFormat, ->; - -/// Constructs a new full transport on a stream. -/// -/// A full transport contains the framing as well as the encoding scheme used to send messages. -fn full_transport

( - metrics: Weak, - connection_id: ConnectionId, - transport: Transport, - role: Role, -) -> FullTransport

-where - for<'de> P: Serialize + Deserialize<'de>, - for<'de> Message

: Serialize + Deserialize<'de>, -{ - let framed = - tokio_util::codec::Framed::new(transport, LengthDelimitedCodec::builder().new_codec()); - - tokio_serde::Framed::new( - framed, - CountingFormat::new(metrics, connection_id, role, BincodeFormat::default()), - ) -} - impl Debug for SmallNetwork where P: Payload, diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 45fdc4b212..a8b339b529 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -12,8 +12,8 @@ use static_assertions::const_assert; use tracing::Span; use super::{ - error::ConnectionError, tasks::MessageReaderError, FullTransport, GossipedAddress, - IncomingStream, Message, NodeId, OutgoingSink, + error::ConnectionError, tasks::MessageReaderError, GossipedAddress, IncomingStream, Message, + NodeId, OutgoingSink, }; use crate::{ effect::{ diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 7d10f66fbe..971d007571 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -48,12 +48,10 @@ use super::{ counting_format::{ConnectionId, Role}, error::ConnectionError, event::{IncomingConnection, OutgoingConnection}, - full_transport, handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - BincodeFormat, EstimatorWeights, Event, FromIncoming, FullTransport, Message, Metrics, Payload, - Transport, + BincodeFormat, EstimatorWeights, Event, FromIncoming, Message, Metrics, Payload, Transport, }; use crate::{ From c66fc37345c43adb7f0fe9204452b42e2999bf31 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 16:39:23 +0200 Subject: [PATCH 228/735] Remove the `small_network::error::Result` alias, as it was only use in one place still --- node/src/components/small_network.rs | 7 +++---- node/src/components/small_network/error.rs | 4 +--- 2 files changed, 4 insertions(+), 7 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 73855d741f..1146b559a1 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -46,7 +46,6 @@ use std::{ fmt::{self, Debug, Display, Formatter}, io, net::{SocketAddr, TcpListener}, - result, sync::{ atomic::{AtomicBool, Ordering}, Arc, Weak, @@ -97,7 +96,7 @@ use self::{ chain_info::ChainInfo, config::IdentityConfig, counting_format::{ConnectionId, CountingFormat, Role}, - error::{ConnectionError, Result}, + error::ConnectionError, event::{IncomingConnection, OutgoingConnection}, limiter::Limiter, message::ConsensusKeyPair, @@ -229,7 +228,7 @@ where registry: &Registry, small_network_identity: SmallNetworkIdentity, chain_info_source: C, - ) -> Result<(SmallNetwork, Effects>)> { + ) -> Result<(SmallNetwork, Effects>), Error> { let mut known_addresses = HashSet::new(); for address in &cfg.known_addresses { match utils::resolve_address(address) { @@ -612,7 +611,7 @@ where fn handle_incoming_closed( &mut self, - result: core::result::Result<(), MessageReaderError>, + result: Result<(), MessageReaderError>, peer_id: Box, peer_addr: SocketAddr, span: Span, diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 2c1539c6b2..5d42d02530 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -1,4 +1,4 @@ -use std::{io, net::SocketAddr, result, sync::Arc}; +use std::{io, net::SocketAddr, sync::Arc}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion, SecretKey}; @@ -12,8 +12,6 @@ use crate::{ utils::{LoadError, Loadable, ResolveAddressError}, }; -pub(super) type Result = result::Result; - /// Error type returned by the `SmallNetwork` component. #[derive(Debug, Error, Serialize)] pub enum Error { From 5677e2129cfe29ba038978f675b858a4d8b11744 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 16:45:45 +0200 Subject: [PATCH 229/735] Move the `MessageReaderError` into `small_network::error` --- node/src/components/small_network.rs | 4 ++-- node/src/components/small_network/error.rs | 15 ++++++++++++++- node/src/components/small_network/event.rs | 4 ++-- node/src/components/small_network/tasks.rs | 15 ++------------- 4 files changed, 20 insertions(+), 18 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 1146b559a1..9279952b1a 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -96,14 +96,14 @@ use self::{ chain_info::ChainInfo, config::IdentityConfig, counting_format::{ConnectionId, CountingFormat, Role}, - error::ConnectionError, + error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, limiter::Limiter, message::ConsensusKeyPair, metrics::Metrics, outgoing::{DialOutcome, DialRequest, OutgoingConfig, OutgoingManager}, symmetry::ConnectionSymmetry, - tasks::{MessageQueueItem, MessageReaderError, NetworkContext}, + tasks::{MessageQueueItem, NetworkContext}, }; use crate::{ diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 5d42d02530..2646da3053 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -3,6 +3,7 @@ use std::{io, net::SocketAddr, sync::Arc}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion, SecretKey}; use datasize::DataSize; +use muxink::codec::TranscodingIoError; use openssl::{error::ErrorStack, ssl}; use serde::Serialize; use thiserror::Error; @@ -106,7 +107,7 @@ impl DataSize for ConnectionError { } } -/// An error related to an incoming or outgoing connection. +/// An error related to the establishment of an incoming or outgoing connection. #[derive(Debug, Error, Serialize)] pub enum ConnectionError { /// Failed to create TLS acceptor. @@ -214,3 +215,15 @@ pub enum RawFrameIoError { #[error("advertised length of {0} exceeds configured maximum raw frame size")] MaximumLengthExceeded(usize), } + +/// An error produced by reading messages. +#[derive(Debug, Error)] +pub enum MessageReaderError { + /// The semaphore that limits trie demands was closed unexpectedly. + #[error("demand limiter semaphore closed unexpectedly")] + UnexpectedSemaphoreClose, + /// The message receival stack returned an error. + // These errors can get fairly and complicated and are boxed here for that reason. + #[error("message receive error")] + ReceiveError(Box), +} diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index a8b339b529..981a41528b 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -12,8 +12,8 @@ use static_assertions::const_assert; use tracing::Span; use super::{ - error::ConnectionError, tasks::MessageReaderError, GossipedAddress, IncomingStream, Message, - NodeId, OutgoingSink, + error::{ConnectionError, MessageReaderError}, + GossipedAddress, IncomingStream, Message, NodeId, OutgoingSink, }; use crate::{ effect::{ diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 971d007571..b89696b515 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -46,7 +46,7 @@ use casper_types::{ProtocolVersion, TimeDiff}; use super::{ chain_info::ChainInfo, counting_format::{ConnectionId, Role}, - error::ConnectionError, + error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, @@ -413,17 +413,6 @@ pub(super) async fn server( } } -/// An error produced by the message reader. -#[derive(Debug, Error)] -pub enum MessageReaderError { - /// The semaphore that limits trie demands was closed unexpectedly. - #[error("demand limiter semaphore closed unexpectedly")] - UnexpectedSemaphoreClose, - /// The message receival stack returned an error. - #[error("message receive error")] - ReceiveError(TranscodingIoError), -} - /// Network message reader. /// /// Schedules all received messages until the stream is closed or an error occurs. @@ -538,7 +527,7 @@ where err = display_error(&err), "receiving message failed, closing connection" ); - return Err(MessageReaderError::ReceiveError(err)); + return Err(MessageReaderError::ReceiveError(Box::new(err))); } } } From 696fe017c740387d55a8e280d07f4b4ab5f00231 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 16:49:06 +0200 Subject: [PATCH 230/735] Remove unused imports around `small_network` --- node/src/components/small_network.rs | 7 ++----- node/src/components/small_network/error.rs | 1 - node/src/components/small_network/event.rs | 3 +-- node/src/components/small_network/tasks.rs | 8 ++------ 4 files changed, 5 insertions(+), 14 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 9279952b1a..14ba2e4f99 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -48,7 +48,7 @@ use std::{ net::{SocketAddr, TcpListener}, sync::{ atomic::{AtomicBool, Ordering}, - Arc, Weak, + Arc, }, time::{Duration, Instant}, }; @@ -68,7 +68,6 @@ use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; use prometheus::Registry; use rand::{prelude::SliceRandom, seq::IteratorRandom}; -use serde::{Deserialize, Serialize}; use thiserror::Error; use tokio::{ net::TcpStream, @@ -79,7 +78,7 @@ use tokio::{ task::JoinHandle, }; use tokio_openssl::SslStream; -use tokio_util::{codec::LengthDelimitedCodec, compat::Compat}; +use tokio_util::compat::Compat; use tracing::{debug, error, info, trace, warn, Instrument, Span}; use casper_types::{EraId, PublicKey}; @@ -95,8 +94,6 @@ pub(crate) use self::{ use self::{ chain_info::ChainInfo, config::IdentityConfig, - counting_format::{ConnectionId, CountingFormat, Role}, - error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, limiter::Limiter, message::ConsensusKeyPair, diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 2646da3053..cd1847f953 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -3,7 +3,6 @@ use std::{io, net::SocketAddr, sync::Arc}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion, SecretKey}; use datasize::DataSize; -use muxink::codec::TranscodingIoError; use openssl::{error::ErrorStack, ssl}; use serde::Serialize; use thiserror::Error; diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 981a41528b..840b61a1ef 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -1,12 +1,11 @@ use std::{ fmt::{self, Debug, Display, Formatter}, - io, mem, + mem, net::SocketAddr, }; use casper_types::PublicKey; use derive_more::From; -use futures::stream::SplitStream; use serde::Serialize; use static_assertions::const_assert; use tracing::Span; diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index b89696b515..9678626c1f 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -2,7 +2,6 @@ use std::{ fmt::Display, - io, net::SocketAddr, pin::Pin, sync::{atomic::AtomicBool, Arc, Weak}, @@ -11,14 +10,12 @@ use std::{ use bincode::Options; use futures::{ future::{self, Either}, - stream::SplitStream, - SinkExt, Stream, StreamExt, TryStreamExt, + SinkExt, StreamExt, }; use muxink::{ codec::{ bincode::{BincodeDecoder, BincodeEncoder}, length_delimited::LengthDelimited, - TranscodingIoError, TranscodingStream, }, io::{FrameReader, FrameWriter}, }; @@ -29,7 +26,6 @@ use openssl::{ }; use prometheus::IntGauge; use serde::{de::DeserializeOwned, Deserialize, Serialize}; -use thiserror::Error; use tokio::{ net::TcpStream, sync::{mpsc::UnboundedReceiver, watch, Semaphore}, @@ -45,7 +41,7 @@ use casper_types::{ProtocolVersion, TimeDiff}; use super::{ chain_info::ChainInfo, - counting_format::{ConnectionId, Role}, + counting_format::ConnectionId, error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, handshake::{negotiate_handshake, HandshakeOutcome}, From 058536df34385be7338b6d17c8f8c2238eaa4578 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 2 Sep 2022 16:54:04 +0200 Subject: [PATCH 231/735] Handle (i.e. log) messesage reader errors in component proper --- node/src/components/small_network/tasks.rs | 187 ++++++++++----------- 1 file changed, 87 insertions(+), 100 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 9678626c1f..f0931ad829 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -426,109 +426,96 @@ where { let demands_in_flight = Arc::new(Semaphore::new(context.max_in_flight_demands)); - let read_messages = - async move { - while let Some(msg_result) = stream.next().await { - match msg_result { - Ok(msg) => { - trace!(%msg, "message received"); - - let effect_builder = EffectBuilder::new(context.event_queue); - - match msg.try_into_demand(effect_builder, peer_id) { - Ok((event, wait_for_response)) => { - // Note: For now, demands bypass the limiter, as we expect the - // backpressure to handle this instead. - - // Acquire a permit. If we are handling too many demands at this - // time, this will block, halting the processing of new message, - // thus letting the peer they have reached their maximum allowance. - let in_flight = demands_in_flight - .clone() - .acquire_owned() - .await - // Note: Since the semaphore is reference counted, it must - // explicitly be closed for acquisition to fail, which we - // never do. If this happens, there is a bug in the code; - // we exit with an error and close the connection. - .map_err(|_| MessageReaderError::UnexpectedSemaphoreClose)?; - - Metrics::record_trie_request_start(&context.net_metrics); - - let net_metrics = context.net_metrics.clone(); - // Spawn a future that will eventually send the returned message. It - // will essentially buffer the response. - tokio::spawn(async move { - if let Some(payload) = wait_for_response.await { - // Send message and await its return. `send_message` should - // only return when the message has been buffered, if the - // peer is not accepting data, we will block here until the - // send buffer has sufficient room. - effect_builder.send_message(peer_id, payload).await; - - // Note: We could short-circuit the event queue here and - // directly insert into the outgoing message queue, - // which may be potential performance improvement. - } - - // Missing else: The handler of the demand did not deem it - // worthy a response. Just drop it. - - // After we have either successfully buffered the message for - // sending, failed to do so or did not have a message to send - // out, we consider the request handled and free up the permit. - Metrics::record_trie_request_end(&net_metrics); - drop(in_flight); - }); - - // Schedule the created event. - context - .event_queue - .schedule::(event, QueueKind::NetworkDemand) - .await; - } - Err(msg) => { - // We've received a non-demand message. Ensure we have the proper amount - // of resources, then push it to the reactor. - limiter - .request_allowance(msg.payload_incoming_resource_estimate( - &context.payload_weights, - )) - .await; - - let queue_kind = if msg.is_low_priority() { - QueueKind::NetworkLowPriority - } else { - QueueKind::NetworkIncoming - }; - - context - .event_queue - .schedule( - Event::IncomingMessage { - peer_id: Box::new(peer_id), - msg: Box::new(msg), - span: span.clone(), - }, - queue_kind, - ) - .await; - } + let read_messages = async move { + while let Some(msg_result) = stream.next().await { + let msg = msg_result.map_err(|err| MessageReaderError::ReceiveError(Box::new(err)))?; + + trace!(%msg, "message received"); + + let effect_builder = EffectBuilder::new(context.event_queue); + + match msg.try_into_demand(effect_builder, peer_id) { + Ok((event, wait_for_response)) => { + // Note: For now, demands bypass the limiter, as we expect the backpressure to + // handle this instead. + + // Acquire a permit. If we are handling too many demands at this time, this will + // block, halting the processing of new message, thus letting the peer they have + // reached their maximum allowance. + let in_flight = demands_in_flight + .clone() + .acquire_owned() + .await + // Note: Since the semaphore is reference counted, it must explicitly be + // closed for acquisition to fail, which we never do. If this happens, + // there is a bug in the code; we exit with an error and close the + // connection. + .map_err(|_| MessageReaderError::UnexpectedSemaphoreClose)?; + + Metrics::record_trie_request_start(&context.net_metrics); + + let net_metrics = context.net_metrics.clone(); + // Spawn a future that will eventually send the returned message. It will + // essentially buffer the response. + tokio::spawn(async move { + if let Some(payload) = wait_for_response.await { + // Send message and await its return. `send_message` should only return + // when the message has been buffered, if the peer is not accepting + // data, we will block here until the send buffer has sufficient room. + effect_builder.send_message(peer_id, payload).await; + + // Note: We could short-circuit the event queue here and directly insert + // into the outgoing message queue, which may be potential + // performance improvement. } - } - Err(err) => { - // TODO: Consider not logging the error here, as it will be logged in the - // same span in the component proper. - warn!( - err = display_error(&err), - "receiving message failed, closing connection" - ); - return Err(MessageReaderError::ReceiveError(Box::new(err))); - } + + // Missing else: The handler of the demand did not deem it worthy a + // response. Just drop it. + + // After we have either successfully buffered the message for sending, + // failed to do so or did not have a message to send out, we consider the + // request handled and free up the permit. + Metrics::record_trie_request_end(&net_metrics); + drop(in_flight); + }); + + // Schedule the created event. + context + .event_queue + .schedule::(event, QueueKind::NetworkDemand) + .await; + } + Err(msg) => { + // We've received a non-demand message. Ensure we have the proper amount of + // resources, then push it to the reactor. + limiter + .request_allowance( + msg.payload_incoming_resource_estimate(&context.payload_weights), + ) + .await; + + let queue_kind = if msg.is_low_priority() { + QueueKind::NetworkLowPriority + } else { + QueueKind::NetworkIncoming + }; + + context + .event_queue + .schedule( + Event::IncomingMessage { + peer_id: Box::new(peer_id), + msg: Box::new(msg), + span: span.clone(), + }, + queue_kind, + ) + .await; } } - Ok(()) - }; + } + Ok::<_, MessageReaderError>(()) + }; let shutdown_messages = async move { while close_incoming_receiver.changed().await.is_ok() {} }; From a2c452d93241958a02fc25441d45602c318fa831 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 5 Sep 2022 17:18:44 +0200 Subject: [PATCH 232/735] Update node code to use `muxink` without built-in deserialization code --- node/src/components/small_network.rs | 24 +++------ node/src/components/small_network/error.rs | 5 +- node/src/components/small_network/event.rs | 24 +++------ node/src/components/small_network/tasks.rs | 62 ++++++++++++++-------- 4 files changed, 58 insertions(+), 57 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 14ba2e4f99..8e054f1d1a 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -44,7 +44,6 @@ use std::{ collections::{BTreeMap, HashMap, HashSet}, convert::Infallible, fmt::{self, Debug, Display, Formatter}, - io, net::{SocketAddr, TcpListener}, sync::{ atomic::{AtomicBool, Ordering}, @@ -57,11 +56,7 @@ use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use muxink::{ - codec::{ - bincode::{BincodeDecoder, BincodeEncoder}, - length_delimited::LengthDelimited, - ResultTranscoder, TranscodingSink, TranscodingStream, - }, + framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, }; use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; @@ -494,7 +489,7 @@ where fn handle_incoming_connection( &mut self, - incoming: Box>, + incoming: Box, span: Span, ) -> Effects> { span.clone().in_scope(|| match *incoming { @@ -673,7 +668,7 @@ where #[allow(clippy::redundant_clone)] fn handle_outgoing_connection( &mut self, - outgoing: OutgoingConnection

, + outgoing: OutgoingConnection, span: Span, ) -> Effects> { let now = Instant::now(); @@ -794,7 +789,7 @@ where trace!(%request, "processing dial request"); match request { DialRequest::Dial { addr, span } => effects.extend( - tasks::connect_outgoing(self.context.clone(), addr) + tasks::connect_outgoing::(self.context.clone(), addr) .instrument(span.clone()) .event(|outgoing| Event::OutgoingConnection { outgoing: Box::new(outgoing), @@ -1220,17 +1215,10 @@ impl From<&SmallNetworkIdentity> for NodeId { type Transport = SslStream; /// The outgoing message sink of an outgoing connection. -type OutgoingSink

= TranscodingSink< - BincodeEncoder>>, - Arc>, - FrameWriter>>, ->; +type OutgoingSink = FrameWriter>>; /// The incoming message stream of an incoming connection. -type IncomingStream

= TranscodingStream< - ResultTranscoder>, io::Error>, - FrameReader>>, ->; +type IncomingStream = FrameReader>>; impl Debug for SmallNetwork where diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index cd1847f953..d8298cdd2f 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -224,5 +224,8 @@ pub enum MessageReaderError { /// The message receival stack returned an error. // These errors can get fairly and complicated and are boxed here for that reason. #[error("message receive error")] - ReceiveError(Box), + ReceiveError(io::Error), + /// Error deserializing message. + #[error("message deserialization error")] + DeserializationError(bincode::Error), } diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 840b61a1ef..7b09d684f4 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -36,7 +36,7 @@ where { /// The TLS handshake completed on the incoming connection. IncomingConnection { - incoming: Box>, + incoming: Box, #[serde(skip)] span: Span, }, @@ -61,7 +61,7 @@ where /// A new outgoing connection was successfully established. OutgoingConnection { - outgoing: Box>, + outgoing: Box, #[serde(skip_serializing)] span: Span, }, @@ -167,7 +167,7 @@ where /// Outcome of an incoming connection negotiation. #[derive(Debug, Serialize)] -pub(crate) enum IncomingConnection

{ +pub(crate) enum IncomingConnection { /// The connection failed early on, before even a peer's [`NodeId`] could be determined. FailedEarly { /// Remote port the peer dialed us from. @@ -198,11 +198,11 @@ pub(crate) enum IncomingConnection

{ peer_consensus_public_key: Option, /// Stream of incoming messages. for incoming connections. #[serde(skip_serializing)] - stream: IncomingStream

, + stream: IncomingStream, }, } -impl

Display for IncomingConnection

{ +impl Display for IncomingConnection { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { IncomingConnection::FailedEarly { peer_addr, error } => { @@ -239,12 +239,7 @@ impl

Display for IncomingConnection

{ /// Outcome of an outgoing connection attempt. #[derive(Debug, Serialize)] -pub(crate) enum OutgoingConnection

-where - // Note: The `P: Serialize` trait bound should not be required, but the derive macro seems to - // not handle the type parameter properly when `skip_serializing` is used - P: Serialize, -{ +pub(crate) enum OutgoingConnection { /// The outgoing connection failed early on, before a peer's [`NodeId`] could be determined. FailedEarly { /// Address that was dialed. @@ -273,16 +268,13 @@ where peer_consensus_public_key: Option, /// Sink for outgoing messages. #[serde(skip)] - sink: OutgoingSink

, + sink: OutgoingSink, /// Holds the information whether the remote node is syncing. is_syncing: bool, }, } -impl

Display for OutgoingConnection

-where - P: Serialize, -{ +impl Display for OutgoingConnection { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { OutgoingConnection::FailedEarly { peer_addr, error } => { diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index f0931ad829..f3cd602c34 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -7,16 +7,14 @@ use std::{ sync::{atomic::AtomicBool, Arc, Weak}, }; -use bincode::Options; +use bincode::{self, Options}; +use bytes::Bytes; use futures::{ future::{self, Either}, - SinkExt, StreamExt, + SinkExt, StreamExt, TryStreamExt, }; use muxink::{ - codec::{ - bincode::{BincodeDecoder, BincodeEncoder}, - length_delimited::LengthDelimited, - }, + framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, }; use openssl::{ @@ -25,7 +23,7 @@ use openssl::{ x509::X509, }; use prometheus::IntGauge; -use serde::{de::DeserializeOwned, Deserialize, Serialize}; +use serde::de::DeserializeOwned; use tokio::{ net::TcpStream, sync::{mpsc::UnboundedReceiver, watch, Semaphore}, @@ -114,7 +112,7 @@ where pub(super) async fn connect_outgoing( context: Arc>, peer_addr: SocketAddr, -) -> OutgoingConnection

+) -> OutgoingConnection where REv: 'static, P: Payload, @@ -159,9 +157,7 @@ where let compat_stream = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); - use muxink::SinkMuxExt; - let sink: OutgoingSink

= FrameWriter::new(LengthDelimited, compat_stream) - .with_transcoder(BincodeEncoder::new()); + let sink: OutgoingSink = FrameWriter::new(LengthDelimited, compat_stream); OutgoingConnection::Established { peer_addr, @@ -234,12 +230,10 @@ async fn handle_incoming( context: Arc>, stream: TcpStream, peer_addr: SocketAddr, -) -> IncomingConnection

+) -> IncomingConnection where REv: From> + 'static, P: Payload, - for<'de> P: Serialize + Deserialize<'de>, - for<'de> Message

: Serialize + Deserialize<'de>, { let (peer_id, transport) = match server_setup_tls(&context, stream).await { Ok(value) => value, @@ -277,13 +271,11 @@ where // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the // tokio built-in version instead). The compat layer fixes that. - use muxink::StreamMuxExt; // TODO: Move, once methods are renamed. let compat_stream = tokio_util::compat::TokioAsyncReadCompatExt::compat(transport); // TODO: We need to split the stream here eventually. Right now, this is safe since the // reader only uses one direction. - let stream: IncomingStream

= FrameReader::new(LengthDelimited, compat_stream, 4096) - .and_then_transcode(BincodeDecoder::new()); + let stream: IncomingStream = FrameReader::new(LengthDelimited, compat_stream, 4096); IncomingConnection::Established { peer_addr, @@ -409,12 +401,21 @@ pub(super) async fn server( } } +/// Setups bincode encoding used on the networking transport. +fn bincode_config() -> impl Options { + bincode::options() + .with_no_limit() // We rely on `muxink` to impose limits. + .with_little_endian() // Default at the time of this writing, we are merely pinning it. + .with_varint_encoding() // Same as above. + .reject_trailing_bytes() // There is no reason for us not to reject trailing bytes. +} + /// Network message reader. /// /// Schedules all received messages until the stream is closed or an error occurs. pub(super) async fn message_reader( context: Arc>, - mut stream: IncomingStream

, + stream: IncomingStream, limiter: Box, mut close_incoming_receiver: watch::Receiver<()>, peer_id: NodeId, @@ -426,9 +427,19 @@ where { let demands_in_flight = Arc::new(Semaphore::new(context.max_in_flight_demands)); + let mut decoding_stream = stream + .map_err(MessageReaderError::ReceiveError) + .map(move |result| { + result.and_then(move |bytes| { + bincode_config() + .deserialize(&bytes) + .map_err(MessageReaderError::DeserializationError) + }) + }); + let read_messages = async move { - while let Some(msg_result) = stream.next().await { - let msg = msg_result.map_err(|err| MessageReaderError::ReceiveError(Box::new(err)))?; + while let Some(msg_result) = decoding_stream.next().await { + let msg: Message

= msg_result?; trace!(%msg, "message received"); @@ -534,7 +545,7 @@ where /// Reads from a channel and sends all messages, until the stream is closed or an error occurs. pub(super) async fn message_sender

( mut queue: UnboundedReceiver>, - mut sink: OutgoingSink

, + mut sink: OutgoingSink, limiter: Box, counter: IntGauge, ) where @@ -555,7 +566,14 @@ pub(super) async fn message_sender

( }; limiter.request_allowance(estimated_wire_size).await; - let mut outcome = sink.send(message).await; + let serialized = match bincode_config().serialize(&message) { + Ok(vec) => Bytes::from(vec), + Err(err) => { + error!(%err, "failed to serialize an outoging message"); + return; + } + }; + let mut outcome = sink.send(serialized).await; // Notify via responder that the message has been buffered by the kernel. if let Some(auto_closing_responder) = opt_responder { From dbf5198674fb8a7c7a038b3ddc48aafbb72e0fe0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 5 Sep 2022 17:21:16 +0200 Subject: [PATCH 233/735] Simplify serialization/deserialization by moving it away from streams in networking --- node/src/components/small_network/tasks.rs | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index f3cd602c34..333a5ce4bf 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -11,7 +11,7 @@ use bincode::{self, Options}; use bytes::Bytes; use futures::{ future::{self, Either}, - SinkExt, StreamExt, TryStreamExt, + SinkExt, StreamExt, }; use muxink::{ framing::length_delimited::LengthDelimited, @@ -415,7 +415,7 @@ fn bincode_config() -> impl Options { /// Schedules all received messages until the stream is closed or an error occurs. pub(super) async fn message_reader( context: Arc>, - stream: IncomingStream, + mut stream: IncomingStream, limiter: Box, mut close_incoming_receiver: watch::Receiver<()>, peer_id: NodeId, @@ -427,19 +427,12 @@ where { let demands_in_flight = Arc::new(Semaphore::new(context.max_in_flight_demands)); - let mut decoding_stream = stream - .map_err(MessageReaderError::ReceiveError) - .map(move |result| { - result.and_then(move |bytes| { - bincode_config() - .deserialize(&bytes) - .map_err(MessageReaderError::DeserializationError) - }) - }); - let read_messages = async move { - while let Some(msg_result) = decoding_stream.next().await { - let msg: Message

= msg_result?; + while let Some(frame_result) = stream.next().await { + let frame = frame_result.map_err(MessageReaderError::ReceiveError)?; + let msg: Message

= bincode_config() + .deserialize(&frame) + .map_err(MessageReaderError::DeserializationError)?; trace!(%msg, "message received"); From 9e8f55e92a155fe9fa6369e210d89c1e653f50c9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 6 Sep 2022 16:27:06 +0200 Subject: [PATCH 234/735] Simplify type defs for small_network transport --- node/src/components/small_network.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 8e054f1d1a..67d67d5422 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -1215,10 +1215,10 @@ impl From<&SmallNetworkIdentity> for NodeId { type Transport = SslStream; /// The outgoing message sink of an outgoing connection. -type OutgoingSink = FrameWriter>>; +type OutgoingSink = FrameWriter>; /// The incoming message stream of an incoming connection. -type IncomingStream = FrameReader>>; +type IncomingStream = FrameReader>; impl Debug for SmallNetwork where From d5fe4583672cf49914f45bc622dcdfd84af197ee Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 8 Sep 2022 15:28:15 +0200 Subject: [PATCH 235/735] Rename `message_reader` to `message_receiver` --- node/src/components/small_network.rs | 2 +- node/src/components/small_network/tasks.rs | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 67d67d5422..1c60fe8f12 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -578,7 +578,7 @@ where // Now we can start the message reader. let boxed_span = Box::new(span.clone()); effects.extend( - tasks::message_reader( + tasks::message_receiver( self.context.clone(), stream, self.incoming_limiter diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 333a5ce4bf..28e73904e1 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -413,7 +413,7 @@ fn bincode_config() -> impl Options { /// Network message reader. /// /// Schedules all received messages until the stream is closed or an error occurs. -pub(super) async fn message_reader( +pub(super) async fn message_receiver( context: Arc>, mut stream: IncomingStream, limiter: Box, From fc67872b87058d3659c9ea034e783e10da8854c1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 8 Sep 2022 15:50:13 +0200 Subject: [PATCH 236/735] Use message fragmentation when sending data over the wire --- node/src/components/small_network.rs | 6 ++++-- node/src/components/small_network/error.rs | 3 ++- node/src/components/small_network/tasks.rs | 16 ++++++++++++++-- 3 files changed, 20 insertions(+), 5 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 1c60fe8f12..d20ee37fb8 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -56,6 +56,7 @@ use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use muxink::{ + fragmented::{Fragmentizer, SingleFragment, Defragmentizer}, framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, }; @@ -1215,10 +1216,11 @@ impl From<&SmallNetworkIdentity> for NodeId { type Transport = SslStream; /// The outgoing message sink of an outgoing connection. -type OutgoingSink = FrameWriter>; +type OutgoingSink = + Fragmentizer>, Bytes>; /// The incoming message stream of an incoming connection. -type IncomingStream = FrameReader>; +type IncomingStream = Defragmentizer>>; impl Debug for SmallNetwork where diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index d8298cdd2f..0c7d485e1f 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -3,6 +3,7 @@ use std::{io, net::SocketAddr, sync::Arc}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion, SecretKey}; use datasize::DataSize; +use muxink::fragmented::DefragmentizerError; use openssl::{error::ErrorStack, ssl}; use serde::Serialize; use thiserror::Error; @@ -224,7 +225,7 @@ pub enum MessageReaderError { /// The message receival stack returned an error. // These errors can get fairly and complicated and are boxed here for that reason. #[error("message receive error")] - ReceiveError(io::Error), + ReceiveError(DefragmentizerError), /// Error deserializing message. #[error("message deserialization error")] DeserializationError(bincode::Error), diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 28e73904e1..4a59378129 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -3,6 +3,7 @@ use std::{ fmt::Display, net::SocketAddr, + num::NonZeroUsize, pin::Pin, sync::{atomic::AtomicBool, Arc, Weak}, }; @@ -14,6 +15,7 @@ use futures::{ SinkExt, StreamExt, }; use muxink::{ + fragmented::{Defragmentizer, Fragmentizer}, framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, }; @@ -57,6 +59,9 @@ use crate::{ utils::display_error, }; +/// The size of a single message fragment sent over the wire. +const MESSAGE_FRAGMENT_SIZE: usize = 4096; + /// An item on the internal outgoing message queue. /// /// Contains a reference counted message and an optional responder to call once the message has been @@ -157,7 +162,11 @@ where let compat_stream = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); - let sink: OutgoingSink = FrameWriter::new(LengthDelimited, compat_stream); + let sink: OutgoingSink = Fragmentizer::new( + // TOOD: Replace with `NonZeroUsize::new(_).unwrap()` in const once stabilized. + NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(), + FrameWriter::new(LengthDelimited, compat_stream), + ); OutgoingConnection::Established { peer_addr, @@ -275,7 +284,10 @@ where // TODO: We need to split the stream here eventually. Right now, this is safe since the // reader only uses one direction. - let stream: IncomingStream = FrameReader::new(LengthDelimited, compat_stream, 4096); + let stream: IncomingStream = Defragmentizer::new( + context.chain_info.maximum_net_message_size as usize, + FrameReader::new(LengthDelimited, compat_stream, 4096), + ); IncomingConnection::Established { peer_addr, From e8a603f306c593a5447c7c00d7099266a174e816 Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Tue, 13 Sep 2022 16:35:15 +0300 Subject: [PATCH 237/735] Remove redundant tests in small network Signed-off-by: George Pisaltu --- .../src/components/small_network/handshake.rs | 33 ------------------- 1 file changed, 33 deletions(-) diff --git a/node/src/components/small_network/handshake.rs b/node/src/components/small_network/handshake.rs index 1f1bfd030b..9aca7f0f83 100644 --- a/node/src/components/small_network/handshake.rs +++ b/node/src/components/small_network/handshake.rs @@ -220,36 +220,3 @@ where Err(ConnectionError::DidNotSendHandshake) } } - -#[cfg(test)] -mod tests { - #[test] - fn frame_reader_reads_without_consuming_extra_bytes() { - todo!("implement test"); - } - - #[test] - fn frame_reader_does_not_allow_exceeding_maximum_size() { - todo!("implement test"); - } - - #[test] - fn frame_reader_handles_0_sized_read() { - todo!("implement test"); - } - - #[test] - fn frame_reader_handles_early_eof() { - todo!("implement test"); - } - - #[test] - fn frame_writer_writes_frames_correctly() { - todo!("implement test"); - } - - #[test] - fn frame_writer_handles_0_size() { - todo!("implement test"); - } -} From 8ee6c5f5a1b80b07e4907866a3fc0df1e12fbbbd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Sep 2022 16:40:24 +0200 Subject: [PATCH 238/735] Make outgoing messages use multiplexing --- node/src/components/small_network.rs | 39 ++++++++++++++++++---- node/src/components/small_network/event.rs | 6 ++-- node/src/components/small_network/tasks.rs | 28 ++++------------ 3 files changed, 41 insertions(+), 32 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index d20ee37fb8..82ce9f96e8 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -45,6 +45,7 @@ use std::{ convert::Infallible, fmt::{self, Debug, Display, Formatter}, net::{SocketAddr, TcpListener}, + num::NonZeroUsize, sync::{ atomic::{AtomicBool, Ordering}, Arc, @@ -56,9 +57,10 @@ use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use muxink::{ - fragmented::{Fragmentizer, SingleFragment, Defragmentizer}, + fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, + mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerHandle}, }; use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; @@ -133,6 +135,9 @@ const BASE_RECONNECTION_TIMEOUT: Duration = Duration::from_secs(1); /// Interval during which to perform outgoing manager housekeeping. const OUTGOING_MANAGER_SWEEP_INTERVAL: Duration = Duration::from_secs(1); +/// The size of a single message fragment sent over the wire. +const MESSAGE_FRAGMENT_SIZE: usize = 4096; + #[derive(Clone, DataSize, Debug)] pub(crate) struct OutgoingHandle

{ #[data_size(skip)] // Unfortunately, there is no way to inspect an `UnboundedSender`. @@ -713,7 +718,7 @@ where peer_addr, peer_id, peer_consensus_public_key, - sink, + transport, is_syncing, } => { info!("new outgoing connection established"); @@ -742,10 +747,24 @@ where self.update_syncing_nodes_set(peer_id, is_syncing); } + // `rust-openssl` does not support the futures 0.3 `AsyncWrite` trait (it uses the + // tokio built-in version instead). The compat layer fixes that. + let compat_transport = + tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); + let carrier: OutgoingCarrier = + Multiplexer::new(FrameWriter::new(LengthDelimited, compat_transport)); + + // TOOD: Replace with `NonZeroUsize::new(_).unwrap()` in const once stabilized. + let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); + + // Now we can setup a channel (TODO: Setup multiple channels instead). + let mux_123 = carrier.create_channel_handle(123); + let channel_123: OutgoingChannel = Fragmentizer::new(fragment_size, mux_123); + effects.extend( tasks::message_sender( receiver, - sink, + channel_123, self.outgoing_limiter .create_handle(peer_id, peer_consensus_public_key), self.net_metrics.queued_messages.clone(), @@ -1212,12 +1231,18 @@ impl From<&SmallNetworkIdentity> for NodeId { } } -/// Transport type alias for base encrypted connections. +/// Transport type for base encrypted connections. type Transport = SslStream; -/// The outgoing message sink of an outgoing connection. -type OutgoingSink = - Fragmentizer>, Bytes>; +/// The writer for outgoing length-prefixed frames. +type OutgoingFrameWriter = + FrameWriter, LengthDelimited, Compat>; + +/// The multiplexer to send fragments over an underlying frame writer. +type OutgoingCarrier = Multiplexer; + +/// An instance of a channel on a carrier. +type OutgoingChannel = Fragmentizer, Bytes>; /// The incoming message stream of an incoming connection. type IncomingStream = Defragmentizer>>; diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 7b09d684f4..527bdd092d 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -12,7 +12,7 @@ use tracing::Span; use super::{ error::{ConnectionError, MessageReaderError}, - GossipedAddress, IncomingStream, Message, NodeId, OutgoingSink, + GossipedAddress, IncomingStream, Message, NodeId, Transport, }; use crate::{ effect::{ @@ -268,7 +268,7 @@ pub(crate) enum OutgoingConnection { peer_consensus_public_key: Option, /// Sink for outgoing messages. #[serde(skip)] - sink: OutgoingSink, + transport: Transport, /// Holds the information whether the remote node is syncing. is_syncing: bool, }, @@ -290,7 +290,7 @@ impl Display for OutgoingConnection { peer_addr, peer_id, peer_consensus_public_key, - sink: _, + transport: _, is_syncing, } => { write!( diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 4a59378129..6f202287a0 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -3,7 +3,6 @@ use std::{ fmt::Display, net::SocketAddr, - num::NonZeroUsize, pin::Pin, sync::{atomic::AtomicBool, Arc, Weak}, }; @@ -15,9 +14,7 @@ use futures::{ SinkExt, StreamExt, }; use muxink::{ - fragmented::{Defragmentizer, Fragmentizer}, - framing::length_delimited::LengthDelimited, - io::{FrameReader, FrameWriter}, + fragmented::Defragmentizer, framing::length_delimited::LengthDelimited, io::FrameReader, }; use openssl::{ pkey::{PKey, Private}, @@ -47,11 +44,12 @@ use super::{ handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - BincodeFormat, EstimatorWeights, Event, FromIncoming, Message, Metrics, Payload, Transport, + BincodeFormat, EstimatorWeights, Event, FromIncoming, Message, Metrics, OutgoingChannel, + Payload, Transport, }; use crate::{ - components::small_network::{IncomingStream, OutgoingSink}, + components::small_network::IncomingStream, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -59,9 +57,6 @@ use crate::{ utils::display_error, }; -/// The size of a single message fragment sent over the wire. -const MESSAGE_FRAGMENT_SIZE: usize = 4096; - /// An item on the internal outgoing message queue. /// /// Contains a reference counted message and an optional responder to call once the message has been @@ -157,22 +152,11 @@ where warn!(%public_addr, %peer_addr, "peer advertises a different public address than what we connected to"); } - // `rust-openssl` does not support the futures 0.3 `AsyncWrite` trait (it uses the - // tokio built-in version instead). The compat layer fixes that. - let compat_stream = - tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); - - let sink: OutgoingSink = Fragmentizer::new( - // TOOD: Replace with `NonZeroUsize::new(_).unwrap()` in const once stabilized. - NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(), - FrameWriter::new(LengthDelimited, compat_stream), - ); - OutgoingConnection::Established { peer_addr, peer_id, peer_consensus_public_key, - sink, + transport, is_syncing, } } @@ -550,7 +534,7 @@ where /// Reads from a channel and sends all messages, until the stream is closed or an error occurs. pub(super) async fn message_sender

( mut queue: UnboundedReceiver>, - mut sink: OutgoingSink, + mut sink: OutgoingChannel, limiter: Box, counter: IntGauge, ) where From 3a1e68f2638d550b600d2ec0b8f44e079e5ea82e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Sep 2022 17:23:51 +0200 Subject: [PATCH 239/735] Setup a single multiplexed channel on the receiving end as well --- node/src/components/small_network.rs | 43 +++++++++++++++++++--- node/src/components/small_network/error.rs | 4 +- node/src/components/small_network/event.rs | 6 +-- node/src/components/small_network/tasks.rs | 26 +++---------- 4 files changed, 47 insertions(+), 32 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 82ce9f96e8..75c9ae5bc8 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -48,7 +48,7 @@ use std::{ num::NonZeroUsize, sync::{ atomic::{AtomicBool, Ordering}, - Arc, + Arc, Mutex, }, time::{Duration, Instant}, }; @@ -57,6 +57,7 @@ use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use muxink::{ + demux::{Demultiplexer, DemultiplexerHandle}, fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, @@ -532,7 +533,7 @@ where public_addr, peer_id, peer_consensus_public_key, - stream, + transport, } => { if self.cfg.max_incoming_peer_connections != 0 { if let Some(symmetries) = self.connection_symmetries.get(&peer_id) { @@ -581,12 +582,36 @@ where // connection after a peer has closed the corresponding incoming connection. } + // TODO: Removal of `CountingTransport` here means some functionality has to be restored. + + // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the + // tokio built-in version instead). The compat layer fixes that. + let compat_transport = + tokio_util::compat::TokioAsyncReadCompatExt::compat(transport); + + // TODO: We need to split the stream here eventually. Right now, this is safe since + // the reader only uses one direction. + let carrier = Arc::new(Mutex::new(Demultiplexer::new(FrameReader::new( + LengthDelimited, + compat_transport, + MESSAGE_FRAGMENT_SIZE, + )))); + + // Setup one channel. + let demux_123 = + Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), 123) + .expect("mutex poisoned"); + let channel_123: IncomingChannel = Defragmentizer::new( + self.context.chain_info.maximum_net_message_size as usize, + demux_123, + ); + // Now we can start the message reader. let boxed_span = Box::new(span.clone()); effects.extend( tasks::message_receiver( self.context.clone(), - stream, + channel_123, self.incoming_limiter .create_handle(peer_id, peer_consensus_public_key), self.close_incoming_receiver.clone(), @@ -1241,11 +1266,17 @@ type OutgoingFrameWriter = /// The multiplexer to send fragments over an underlying frame writer. type OutgoingCarrier = Multiplexer; -/// An instance of a channel on a carrier. +/// An instance of a channel on an outgoing carrier. type OutgoingChannel = Fragmentizer, Bytes>; -/// The incoming message stream of an incoming connection. -type IncomingStream = Defragmentizer>>; +/// The reader for incoming length-prefixed frames. +type IncomingFrameReader = FrameReader>; + +/// The demultiplexer that seperates channels sent through the underlying frame reader. +type IncomingCarrier = Demultiplexer; + +/// An instance of a channel on an incoming carrier. +type IncomingChannel = Defragmentizer>; impl Debug for SmallNetwork where diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 0c7d485e1f..639c56e625 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -3,7 +3,7 @@ use std::{io, net::SocketAddr, sync::Arc}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion, SecretKey}; use datasize::DataSize; -use muxink::fragmented::DefragmentizerError; +use muxink::{demux::DemultiplexerError, fragmented::DefragmentizerError}; use openssl::{error::ErrorStack, ssl}; use serde::Serialize; use thiserror::Error; @@ -225,7 +225,7 @@ pub enum MessageReaderError { /// The message receival stack returned an error. // These errors can get fairly and complicated and are boxed here for that reason. #[error("message receive error")] - ReceiveError(DefragmentizerError), + ReceiveError(DefragmentizerError>), /// Error deserializing message. #[error("message deserialization error")] DeserializationError(bincode::Error), diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 527bdd092d..0cd9a13ca0 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -12,7 +12,7 @@ use tracing::Span; use super::{ error::{ConnectionError, MessageReaderError}, - GossipedAddress, IncomingStream, Message, NodeId, Transport, + GossipedAddress, Message, NodeId, Transport, }; use crate::{ effect::{ @@ -198,7 +198,7 @@ pub(crate) enum IncomingConnection { peer_consensus_public_key: Option, /// Stream of incoming messages. for incoming connections. #[serde(skip_serializing)] - stream: IncomingStream, + transport: Transport, }, } @@ -219,7 +219,7 @@ impl Display for IncomingConnection { public_addr, peer_id, peer_consensus_public_key, - stream: _, + transport: _, } => { write!( f, diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 6f202287a0..91075dcd12 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -13,9 +13,7 @@ use futures::{ future::{self, Either}, SinkExt, StreamExt, }; -use muxink::{ - fragmented::Defragmentizer, framing::length_delimited::LengthDelimited, io::FrameReader, -}; + use openssl::{ pkey::{PKey, Private}, ssl::Ssl, @@ -44,12 +42,11 @@ use super::{ handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - BincodeFormat, EstimatorWeights, Event, FromIncoming, Message, Metrics, OutgoingChannel, - Payload, Transport, + BincodeFormat, EstimatorWeights, Event, FromIncoming, IncomingChannel, Message, Metrics, + OutgoingChannel, Payload, Transport, }; use crate::{ - components::small_network::IncomingStream, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -260,25 +257,12 @@ where Span::current().record("validator_id", &field::display(public_key)); } - // TODO: Removal of `CountingTransport` here means some functionality has to be restored. - - // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the - // tokio built-in version instead). The compat layer fixes that. - let compat_stream = tokio_util::compat::TokioAsyncReadCompatExt::compat(transport); - - // TODO: We need to split the stream here eventually. Right now, this is safe since the - // reader only uses one direction. - let stream: IncomingStream = Defragmentizer::new( - context.chain_info.maximum_net_message_size as usize, - FrameReader::new(LengthDelimited, compat_stream, 4096), - ); - IncomingConnection::Established { peer_addr, public_addr, peer_id, peer_consensus_public_key, - stream, + transport, } } Err(error) => IncomingConnection::Failed { @@ -411,7 +395,7 @@ fn bincode_config() -> impl Options { /// Schedules all received messages until the stream is closed or an error occurs. pub(super) async fn message_receiver( context: Arc>, - mut stream: IncomingStream, + mut stream: IncomingChannel, limiter: Box, mut close_incoming_receiver: watch::Receiver<()>, peer_id: NodeId, From af82b8cb4552ab27069843959649a0e1c71887b7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 16 Sep 2022 17:24:45 +0200 Subject: [PATCH 240/735] Add a `Channel` for every `Payload` implementation --- node/src/components/small_network.rs | 2 +- node/src/components/small_network/message.rs | 36 ++++++++++++++ node/src/components/small_network/tests.rs | 4 ++ node/src/protocol.rs | 49 +++++++++++++++++++- 4 files changed, 89 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 75c9ae5bc8..cfe9a27462 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -88,7 +88,7 @@ pub(crate) use self::{ error::Error, event::Event, gossiped_address::GossipedAddress, - message::{EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, + message::{Channel, EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, }; use self::{ chain_info::ChainInfo, diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index f78f15e6d2..0457f28516 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -321,6 +321,39 @@ impl Display for MessageKind { } } +/// Multiplexed channel identifier used across a single connection. +/// +/// Channels are separated mainly to avoid deadlocking issues where two nodes requests a large +/// amount of items from each other simultaneously, with responses being queued behind requests, +/// whilst the latter are buffered due to backpressure. +/// +/// Further separation is done to improve quality of service of certain subsystems, e.g. to +/// guarantee that consensus is not impaired by the transfer of large trie nodes. +#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd)] +#[repr(u8)] +pub(crate) enum Channel { + /// Networking layer messages, e.g. address gossip. + Network = 1, + /// Data solely used for syncing being requested. + /// + /// We separate sync data (e.g. trie nodes) requests from regular ("data") requests since the + /// former are not required for a validating node to make progress on consensus, thus separating + /// these can improve latency. + SyncDataRequests = 2, + /// Sync data requests being answered. + /// + /// Responses are separated from requests to ensure liveness (see [`Channel`] documentation). + SyncDataResponses = 3, + /// Requests for data used during regular validator operation. + DataRequests = 4, + /// Responses for data used during regular validator operation. + DataResponses = 5, + /// Consensus-level messages, like finality signature announcements and consensus messages. + Consensus = 6, + /// Regular gossip announcements and responses (e.g. for deploys and blocks). + BulkGossip = 7, +} + /// Network message payload. /// /// Payloads are what is transferred across the network outside of control messages from the @@ -343,6 +376,9 @@ pub(crate) trait Payload: /// /// This functionality should be removed once multiplexed networking lands. fn is_unsafe_for_syncing_peers(&self) -> bool; + + /// Determine which channel a message is supposed to sent/received on. + fn get_channel(&self) -> Channel; } /// Network message conversion support. diff --git a/node/src/components/small_network/tests.rs b/node/src/components/small_network/tests.rs index 3397e5ed73..f35206c1a5 100644 --- a/node/src/components/small_network/tests.rs +++ b/node/src/components/small_network/tests.rs @@ -163,6 +163,10 @@ impl Payload for Message { fn is_unsafe_for_syncing_peers(&self) -> bool { false } + + fn get_channel(&self) -> super::Channel { + super::Channel::Network + } } /// Test reactor. diff --git a/node/src/protocol.rs b/node/src/protocol.rs index c67a71aa1b..686838c2f3 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -16,7 +16,9 @@ use crate::{ consensus, fetcher::FetchedOrNotFound, gossiper, - small_network::{EstimatorWeights, FromIncoming, GossipedAddress, MessageKind, Payload}, + small_network::{ + Channel, EstimatorWeights, FromIncoming, GossipedAddress, MessageKind, Payload, + }, }, effect::{ incoming::{ @@ -137,6 +139,7 @@ impl Payload for Message { } } + #[inline] fn is_unsafe_for_syncing_peers(&self) -> bool { match self { Message::Consensus(_) => false, @@ -149,6 +152,50 @@ impl Payload for Message { Message::FinalitySignature(_) => false, } } + + #[inline] + fn get_channel(&self) -> Channel { + match self { + Message::Consensus(_) => Channel::Consensus, + Message::DeployGossiper(_) => Channel::BulkGossip, + Message::AddressGossiper(_) => Channel::Network, + Message::GetRequest { + tag, + serialized_id: _, + } => match tag { + // TODO: Verify which requests are for sync data. + Tag::Deploy => Channel::DataRequests, + Tag::FinalizedApprovals => Channel::SyncDataRequests, + Tag::Block => Channel::SyncDataRequests, + Tag::GossipedAddress => Channel::Network, + Tag::BlockAndMetadataByHeight => Channel::SyncDataRequests, + Tag::BlockHeaderByHash => Channel::SyncDataRequests, + Tag::BlockHeaderAndFinalitySignaturesByHeight => Channel::SyncDataRequests, + Tag::TrieOrChunk => Channel::SyncDataRequests, + Tag::BlockAndDeploysByHash => Channel::SyncDataRequests, + Tag::BlockHeaderBatch => Channel::SyncDataRequests, + Tag::FinalitySignaturesByHash => Channel::SyncDataRequests, + }, + Message::GetResponse { + tag, + serialized_item: _, + } => match tag { + // TODO: Verify which responses are for sync data. + Tag::Deploy => Channel::DataResponses, + Tag::FinalizedApprovals => Channel::SyncDataResponses, + Tag::Block => Channel::SyncDataResponses, + Tag::GossipedAddress => Channel::Network, + Tag::BlockAndMetadataByHeight => Channel::SyncDataResponses, + Tag::BlockHeaderByHash => Channel::SyncDataResponses, + Tag::BlockHeaderAndFinalitySignaturesByHeight => Channel::SyncDataResponses, + Tag::TrieOrChunk => Channel::SyncDataResponses, + Tag::BlockAndDeploysByHash => Channel::SyncDataResponses, + Tag::BlockHeaderBatch => Channel::SyncDataResponses, + Tag::FinalitySignaturesByHash => Channel::SyncDataResponses, + }, + Message::FinalitySignature(_) => Channel::Consensus, + } + } } impl Message { From 807cdbaf41752914c4d37e062f4fcd4b30d1a839 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Oct 2022 15:29:45 +0200 Subject: [PATCH 241/735] Fix import errors introduced by rebasing --- node/src/components/small_network.rs | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index cfe9a27462..59c398ffbc 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -93,6 +93,7 @@ pub(crate) use self::{ use self::{ chain_info::ChainInfo, config::IdentityConfig, + error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, limiter::Limiter, message::ConsensusKeyPair, @@ -1207,18 +1208,14 @@ impl SmallNetworkIdentity { } } - pub(crate) fn from_config( - config: WithDir, - ) -> result::Result { + pub(crate) fn from_config(config: WithDir) -> Result { match &config.value().identity { Some(identity) => Self::from_identity_config(identity), None => Self::with_generated_certs(), } } - fn from_identity_config( - identity: &IdentityConfig, - ) -> result::Result { + fn from_identity_config(identity: &IdentityConfig) -> Result { let not_yet_validated_x509_cert = tls::load_cert(&identity.tls_certificate)?; let secret_key = tls::load_secret_key(&identity.secret_key)?; let x509_cert = tls::tls_cert_from_x509(not_yet_validated_x509_cert)?; @@ -1226,7 +1223,7 @@ impl SmallNetworkIdentity { Ok(SmallNetworkIdentity::new(secret_key, x509_cert)) } - pub(crate) fn with_generated_certs() -> result::Result { + pub(crate) fn with_generated_certs() -> Result { let (not_yet_validated_x509_cert, secret_key) = tls::generate_node_cert() .map_err(SmallNetworkIdentityError::CouldNotGenerateTlsCertificate)?; let tls_certificate = tls::validate_self_signed_cert(not_yet_validated_x509_cert)?; From b4530db47da3b15c7362bce62a6ab409214f2779 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Oct 2022 15:41:51 +0200 Subject: [PATCH 242/735] Add keydump feature from #3317. Squashed commit of the following: commit 9775fd2f1159cb693db7cfad1d04086098884e19 Author: Marc Brinkmann Date: Thu Sep 22 19:39:21 2022 +0200 keylog: Undo inadvertent formatting changes commit b9c4ae66c66e8f6bacaf2d1aa15143b143e9d8c7 Author: Marc Brinkmann Date: Thu Sep 22 19:16:12 2022 +0200 keydump: Use shared file for all TLS keys commit 99a0fc51ad6ad18d1fb7846c0e6cce89acfa9d5b Author: Marc Brinkmann Date: Thu Sep 22 19:14:47 2022 +0200 keydump: Use file-locking to allow multiple nodes to write to the same keydump file commit 71a794af4eef3362f2ffe275afb5a096d3dbcc37 Author: Marc Brinkmann Date: Wed Sep 21 17:54:00 2022 +0200 keydump: Add missing line termination commit e15680027d43a21fe2bf49b928cb665942b4f0d1 Author: Marc Brinkmann Date: Wed Sep 21 17:31:51 2022 +0200 keydump: Make `nctl` dump keys by default commit 4b08e7274576841873e437500ba015c47a724026 Author: Marc Brinkmann Date: Wed Sep 21 17:03:32 2022 +0200 keydump: Add settings for TLS keydumping to shipped configuration files commit efa11ab29406df25733e9cc91973dd8862538a57 Author: Marc Brinkmann Date: Wed Sep 21 16:23:41 2022 +0200 keydump: Add support for `network.keylog_path` to networking component commit 06aa2e5b158921528edc5b0590f7d575f36158e7 Author: Marc Brinkmann Date: Wed Sep 21 16:02:41 2022 +0200 keydump: Create a locking line writer --- node/CHANGELOG.md | 1 + node/src/components/small_network.rs | 19 ++++++++- node/src/components/small_network/config.rs | 3 ++ node/src/components/small_network/error.rs | 8 ++++ node/src/components/small_network/tasks.rs | 25 +++++++---- node/src/tls.rs | 17 +++++++- node/src/utils.rs | 47 ++++++++++++++++++++- resources/local/config.toml | 9 ++++ resources/production/config-example.toml | 9 ++++ utils/nctl/sh/assets/setup_shared.sh | 1 + 10 files changed, 125 insertions(+), 14 deletions(-) diff --git a/node/CHANGELOG.md b/node/CHANGELOG.md index 08c9c2cbdf..f6dcf2ad38 100644 --- a/node/CHANGELOG.md +++ b/node/CHANGELOG.md @@ -42,6 +42,7 @@ All notable changes to this project will be documented in this file. The format * Add `testing` feature to casper-node crate to support test-only functionality (random constructors) on blocks and deploys. * The network handshake now contains the hash of the chainspec used and will be successful only if they match. * Add an `identity` option to load existing network identity certificates signed by a CA. +* TLS connection keys can now be logged using the `network.keylog_location` setting (similar to `SSLKEYLOGFILE` envvar found in other applications). ### Changed * Detection of a crash no longer triggers DB integrity checks to run on node start; the checks can be triggered manually instead. diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 59c398ffbc..9f9342493c 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -44,6 +44,7 @@ use std::{ collections::{BTreeMap, HashMap, HashSet}, convert::Infallible, fmt::{self, Debug, Display, Formatter}, + fs::OpenOptions, net::{SocketAddr, TcpListener}, num::NonZeroUsize, sync::{ @@ -118,7 +119,7 @@ use crate::{ ValidationError, }, types::NodeId, - utils::{self, display_error, Source, WithDir}, + utils::{self, display_error, LockedLineWriter, Source, WithDir}, NodeRng, }; @@ -338,12 +339,28 @@ where let chain_info = chain_info_source.into(); let protocol_version = chain_info.protocol_version; + + let keylog = match cfg.keylog_path { + Some(ref path) => { + let keylog = OpenOptions::new() + .append(true) + .create(true) + .write(true) + .open(path) + .map_err(Error::CannotAppendToKeylog)?; + warn!(%path, "keylog enabled, if you are not debugging turn this off in your configuration (`network.keylog_path`)"); + Some(LockedLineWriter::new(keylog)) + } + None => None, + }; + let context = Arc::new(NetworkContext { event_queue, our_id: NodeId::from(&small_network_identity), our_cert: small_network_identity.tls_certificate, network_ca: ca_certificate.map(Arc::new), secret_key: small_network_identity.secret_key, + keylog, net_metrics: Arc::downgrade(&net_metrics), chain_info, public_addr, diff --git a/node/src/components/small_network/config.rs b/node/src/components/small_network/config.rs index affe948cbb..4f1a4db742 100644 --- a/node/src/components/small_network/config.rs +++ b/node/src/components/small_network/config.rs @@ -37,6 +37,7 @@ impl Default for Config { bind_address: DEFAULT_BIND_ADDRESS.to_string(), public_address: DEFAULT_PUBLIC_ADDRESS.to_string(), known_addresses: Vec::new(), + keylog_path: None, gossip_interval: DEFAULT_GOSSIP_INTERVAL, initial_gossip_delay: DEFAULT_INITIAL_GOSSIP_DELAY, max_addr_pending_time: DEFAULT_MAX_ADDR_PENDING_TIME, @@ -81,6 +82,8 @@ pub struct Config { pub public_address: String, /// Known address of a node on the network used for joining. pub known_addresses: Vec, + /// If set, logs all TLS keys to this file. + pub keylog_path: Option, /// Interval in milliseconds used for gossiping. pub gossip_interval: TimeDiff, /// Initial delay before the first round of gossip. diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 639c56e625..655baace9d 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -62,6 +62,14 @@ pub enum Error { #[source] ResolveAddressError, ), + /// Could not open the specified keylog file for appending. + #[error("could not open keylog for appending")] + CannotAppendToKeylog( + #[serde(skip_serializing)] + #[source] + io::Error, + ), + /// Instantiating metrics failed. #[error(transparent)] Metrics( diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 91075dcd12..0aef7b16e6 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -51,7 +51,7 @@ use crate::{ reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::display_error, + utils::{display_error, LockedLineWriter}, }; /// An item on the internal outgoing message queue. @@ -78,14 +78,18 @@ where .set_nodelay(true) .map_err(ConnectionError::TcpNoDelay)?; - let mut transport = tls::create_tls_connector(context.our_cert.as_x509(), &context.secret_key) - .and_then(|connector| connector.configure()) - .and_then(|mut config| { - config.set_verify_hostname(false); - config.into_ssl("this-will-not-be-checked.example.com") - }) - .and_then(|ssl| SslStream::new(ssl, stream)) - .map_err(ConnectionError::TlsInitialization)?; + let mut transport = tls::create_tls_connector( + context.our_cert.as_x509(), + &context.secret_key, + context.keylog.clone(), + ) + .and_then(|connector| connector.configure()) + .and_then(|mut config| { + config.set_verify_hostname(false); + config.into_ssl("this-will-not-be-checked.example.com") + }) + .and_then(|ssl| SslStream::new(ssl, stream)) + .map_err(ConnectionError::TlsInitialization)?; SslStream::connect(Pin::new(&mut transport)) .await @@ -180,6 +184,8 @@ where pub(super) network_ca: Option>, /// Secret key associated with `our_cert`. pub(super) secret_key: Arc>, + /// Logfile to log TLS keys to. If given, automatically enables logging. + pub(super) keylog: Option, /// Weak reference to the networking metrics shared by all sender/receiver tasks. pub(super) net_metrics: Weak, /// Chain info extract from chainspec. @@ -283,6 +289,7 @@ pub(super) async fn server_setup_tls( let mut tls_stream = tls::create_tls_acceptor( context.our_cert.as_x509().as_ref(), context.secret_key.as_ref(), + context.keylog.clone(), ) .and_then(|ssl_acceptor| Ssl::new(ssl_acceptor.context())) .and_then(|ssl| SslStream::new(ssl, stream)) diff --git a/node/src/tls.rs b/node/src/tls.rs index 696572d6b6..5414aa752f 100644 --- a/node/src/tls.rs +++ b/node/src/tls.rs @@ -55,6 +55,8 @@ use rand::{ use serde::{Deserialize, Serialize}; use thiserror::Error; +use crate::utils::LockedLineWriter; + // This is inside a private module so that the generated `BigArray` does not form part of this // crate's public API, and hence also doesn't appear in the rustdocs. mod big_array { @@ -320,9 +322,10 @@ pub fn generate_node_cert() -> SslResult<(X509, PKey)> { pub(crate) fn create_tls_acceptor( cert: &X509Ref, private_key: &PKeyRef, + keylog: Option, ) -> SslResult { let mut builder = SslAcceptor::mozilla_modern_v5(SslMethod::tls_server())?; - set_context_options(&mut builder, cert, private_key)?; + set_context_options(&mut builder, cert, private_key, keylog)?; Ok(builder.build()) } @@ -334,9 +337,10 @@ pub(crate) fn create_tls_acceptor( pub(crate) fn create_tls_connector( cert: &X509Ref, private_key: &PKeyRef, + keylog: Option, ) -> SslResult { let mut builder = SslConnector::builder(SslMethod::tls_client())?; - set_context_options(&mut builder, cert, private_key)?; + set_context_options(&mut builder, cert, private_key, keylog)?; Ok(builder.build()) } @@ -348,6 +352,7 @@ fn set_context_options( ctx: &mut SslContextBuilder, cert: &X509Ref, private_key: &PKeyRef, + keylog: Option, ) -> SslResult<()> { ctx.set_min_proto_version(Some(SslVersion::TLS1_3))?; @@ -361,6 +366,14 @@ fn set_context_options( // handshake has completed. ctx.set_verify_callback(SslVerifyMode::PEER, |_, _| true); + if let Some(writer) = keylog { + ctx.set_keylog_callback(move |_ssl_ref, str| { + let mut line = str.to_owned(); + line.push('\n'); + writer.write_line(&line); + }); + } + Ok(()) } diff --git a/node/src/utils.rs b/node/src/utils.rs index 55fe4c4033..fc2f394c12 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -15,18 +15,20 @@ use std::{ any, cell::RefCell, fmt::{self, Debug, Display, Formatter}, - io, + fs::File, + io::{self, Write}, net::{SocketAddr, ToSocketAddrs}, ops::{Add, BitXorAssign, Div}, path::{Path, PathBuf}, sync::{ atomic::{AtomicBool, Ordering}, - Arc, + Arc, Mutex, }, time::Duration, }; use datasize::DataSize; +use fs2::FileExt; use hyper::server::{conn::AddrIncoming, Builder, Server}; #[cfg(test)] use once_cell::sync::Lazy; @@ -405,6 +407,47 @@ pub(crate) async fn wait_for_arc_drop( false } +/// A thread-safe wrapper around a file that writes chunks. +/// +/// A chunk can (but needn't) be a line. The writer guarantees it will be written to the wrapped +/// file, even if other threads are attempting to write chunks at the same time. +#[derive(Clone)] +pub(crate) struct LockedLineWriter(Arc>); + +impl LockedLineWriter { + /// Creates a new `LockedLineWriter`. + /// + /// This function does not panic - if any error occurs, it will be logged and ignored. + pub(crate) fn new(file: File) -> Self { + LockedLineWriter(Arc::new(Mutex::new(file))) + } + + /// Writes a chunk to the wrapped file. + pub(crate) fn write_line(&self, line: &str) { + match self.0.lock() { + Ok(mut guard) => { + // Acquire a lock on the file. This ensures we do not garble output when multiple + // nodes are writing to the same file. + if let Err(err) = guard.lock_exclusive() { + warn!(%line, %err, "could not acquire file lock, not writing line"); + return; + } + + if let Err(err) = guard.write_all(line.as_bytes()) { + warn!(%line, %err, "could not finish writing line"); + } + + if let Err(err) = guard.unlock() { + warn!(%err, "failed to release file lock in locked line writer, ignored"); + } + } + Err(_) => { + error!(%line, "line writer lock poisoned, lost line"); + } + } + } +} + #[cfg(test)] mod tests { use std::{sync::Arc, time::Duration}; diff --git a/resources/local/config.toml b/resources/local/config.toml index 59dc5007c1..dced3473a9 100644 --- a/resources/local/config.toml +++ b/resources/local/config.toml @@ -138,6 +138,15 @@ bind_address = '0.0.0.0:34553' # one connection. known_addresses = ['127.0.0.1:34553'] +# TLS keylog location +# +# If set, the node will write all keys generated during all TLS connections to the given file path. +# This option is intended for debugging only, do NOT enable this on production systems. +# +# The specified location will be appended to, even across node restarts, so it may grow large if +# unattended. +# keylog_path = "/path/to/keylog" + # The interval between each fresh round of gossiping the node's public address. gossip_interval = '30sec' diff --git a/resources/production/config-example.toml b/resources/production/config-example.toml index 6947df3099..98dc48c439 100644 --- a/resources/production/config-example.toml +++ b/resources/production/config-example.toml @@ -138,6 +138,15 @@ bind_address = '0.0.0.0:35000' # one connection. known_addresses = ['168.119.137.143:35000','47.251.14.254:35000','47.242.53.164:35000','46.101.61.107:35000','47.88.87.63:35000','35.152.42.229:35000','206.189.47.102:35000','134.209.243.124:35000','148.251.190.103:35000','167.172.32.44:35000','165.22.252.48:35000','18.219.70.138:35000','3.225.191.9:35000','3.221.194.62:35000','101.36.120.117:35000','54.151.24.120:35000','148.251.135.60:35000','18.188.103.230:35000','54.215.53.35:35000','88.99.95.7:35000','99.81.225.72:35000','52.207.122.179:35000','3.135.134.105:35000','62.171.135.101:35000','139.162.132.144:35000','63.33.251.206:35000','135.181.165.110:35000','135.181.134.57:35000','94.130.107.198:35000','54.180.220.20:35000','188.40.83.254:35000','157.90.131.121:35000','134.209.110.11:35000','168.119.69.6:35000','45.76.251.225:35000','168.119.209.31:35000','31.7.207.16:35000','209.145.60.74:35000','54.252.66.23:35000','134.209.16.172:35000','178.238.235.196:35000','18.217.20.213:35000','3.14.161.135:35000','3.12.207.193:35000','3.12.207.193:35000'] +# TLS keylog location +# +# If set, the node will write all keys generated during all TLS connections to the given file path. +# This option is intended for debugging only, do NOT enable this on production systems. +# +# The specified location will be appended to, even across node restarts, so it may grow large if +# unattended. +# keylog_path = "/path/to/keylog" + # The interval between each fresh round of gossiping the node's public address. gossip_interval = '120sec' diff --git a/utils/nctl/sh/assets/setup_shared.sh b/utils/nctl/sh/assets/setup_shared.sh index 402c0e4e2c..6d98d80ab4 100644 --- a/utils/nctl/sh/assets/setup_shared.sh +++ b/utils/nctl/sh/assets/setup_shared.sh @@ -413,6 +413,7 @@ function setup_asset_node_configs() "cfg['logging']['format']='$NCTL_NODE_LOG_FORMAT';" "cfg['network']['bind_address']='$(get_network_bind_address "$IDX")';" "cfg['network']['known_addresses']=[$(get_network_known_addresses "$IDX")];" + "cfg['network']['keylog_path']='$PATH_TO_NET/tlskeys';" "cfg['storage']['path']='../../storage';" "cfg['rest_server']['address']='0.0.0.0:$(get_node_port_rest "$IDX")';" "cfg['rpc_server']['address']='0.0.0.0:$(get_node_port_rpc "$IDX")';" From 10ef09c5479d5ee1f7ea84bc45528f73dc85430a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 20 Oct 2022 14:13:48 +0200 Subject: [PATCH 243/735] Remove support for reporting sync status in handshake (and reliance on it) --- node/src/components/chain_synchronizer.rs | 10 +-- .../chain_synchronizer/operations.rs | 50 +++------------ node/src/components/small_network.rs | 62 +------------------ .../components/small_network/chain_info.rs | 2 - node/src/components/small_network/event.rs | 20 +----- .../src/components/small_network/handshake.rs | 7 +-- node/src/components/small_network/message.rs | 43 ++++--------- node/src/components/small_network/tasks.rs | 7 +-- node/src/components/small_network/tests.rs | 4 -- node/src/effect.rs | 26 -------- node/src/effect/announcements.rs | 20 ------ node/src/effect/requests.rs | 8 --- node/src/protocol.rs | 14 ----- node/src/reactor/joiner.rs | 18 +----- node/src/reactor/participating.rs | 25 ++------ 15 files changed, 34 insertions(+), 282 deletions(-) diff --git a/node/src/components/chain_synchronizer.rs b/node/src/components/chain_synchronizer.rs index daf606b141..902b94b723 100644 --- a/node/src/components/chain_synchronizer.rs +++ b/node/src/components/chain_synchronizer.rs @@ -19,9 +19,7 @@ use crate::{ Component, }, effect::{ - announcements::{ - BlocklistAnnouncement, ChainSynchronizerAnnouncement, ControlAnnouncement, - }, + announcements::{BlocklistAnnouncement, ControlAnnouncement}, requests::{ ChainspecLoaderRequest, ContractRuntimeRequest, FetcherRequest, MarkBlockCompletedRequest, NetworkInfoRequest, NodeStateRequest, @@ -180,7 +178,6 @@ where + From + From + From - + From + Send, { /// Constructs a new `ChainSynchronizer` suitable for use in the participating reactor to sync @@ -232,10 +229,7 @@ where _phantom: PhantomData, }; - Ok(( - synchronizer, - effect_builder.announce_finished_chain_syncing().ignore(), - )) + Ok((synchronizer, Effects::new())) } } diff --git a/node/src/components/chain_synchronizer/operations.rs b/node/src/components/chain_synchronizer/operations.rs index f9efc59ceb..15067763eb 100644 --- a/node/src/components/chain_synchronizer/operations.rs +++ b/node/src/components/chain_synchronizer/operations.rs @@ -37,9 +37,7 @@ use crate::{ linear_chain::{self, BlockSignatureError}, }, effect::{ - announcements::{ - BlocklistAnnouncement, ChainSynchronizerAnnouncement, ControlAnnouncement, - }, + announcements::{BlocklistAnnouncement, ControlAnnouncement}, requests::{ ContractRuntimeRequest, FetcherRequest, MarkBlockCompletedRequest, NetworkInfoRequest, }, @@ -334,41 +332,12 @@ const fn has_connected_to_network() -> bool { true } -/// Allows us to decide whether syncing peers can also be used when calling `fetch`. -trait CanUseSyncingNodes { - fn can_use_syncing_nodes() -> bool { - true - } -} - -/// Tries and trie chunks can only be retrieved from non-syncing peers to avoid syncing nodes -/// deadlocking while requesting these from each other. -impl CanUseSyncingNodes for TrieOrChunk { - fn can_use_syncing_nodes() -> bool { - false - } -} - -/// All other `Item` types can safely be retrieved from syncing peers, as there is no networking -/// backpressure implemented for these fetch requests. -impl CanUseSyncingNodes for BlockHeader {} -impl CanUseSyncingNodes for Block {} -impl CanUseSyncingNodes for Deploy {} -impl CanUseSyncingNodes for BlockAndDeploys {} -impl CanUseSyncingNodes for BlockHeadersBatch {} - /// Gets a list of peers suitable for the fetch operation. -async fn get_peers(include_syncing: bool, ctx: &ChainSyncContext<'_, REv>) -> Vec +async fn get_peers(ctx: &ChainSyncContext<'_, REv>) -> Vec where REv: From, { - let mut peer_list = if include_syncing { - ctx.effect_builder.get_fully_connected_peers().await - } else { - ctx.effect_builder - .get_fully_connected_non_syncing_peers() - .await - }; + let mut peer_list = ctx.effect_builder.get_fully_connected_peers().await; ctx.filter_bad_peers(&mut peer_list); peer_list } @@ -402,14 +371,14 @@ async fn fetch_with_retries( id: T::Id, ) -> Result, FetchWithRetryError> where - T: Item + CanUseSyncingNodes + 'static, + T: Item + 'static, REv: From> + From, { let mut total_attempts = 0; let mut attempts_after_bootstrapped = 0; loop { let has_connected_to_network = has_connected_to_network(); - let new_peer_list = get_peers(T::can_use_syncing_nodes(), ctx).await; + let new_peer_list = get_peers(ctx).await; if new_peer_list.is_empty() && total_attempts % 100 == 0 { warn!( total_attempts, @@ -417,7 +386,6 @@ where has_connected_to_network, item_type = ?T::TAG, ?id, - can_use_syncing_nodes = %T::can_use_syncing_nodes(), "failed to attempt to fetch item due to no fully-connected peers" ); } @@ -986,7 +954,7 @@ where { let mut peers = vec![]; for _ in 0..ctx.config.max_retries_while_not_connected() { - peers = get_peers(true, ctx).await; + peers = get_peers(ctx).await; if !peers.is_empty() { break; } @@ -1418,7 +1386,6 @@ where + From + From + From - + From + Send, { info!("starting chain sync to genesis"); @@ -1429,7 +1396,6 @@ where .await?; fetch_headers_till_genesis(&ctx).await?; fetch_blocks_and_state_and_finality_signatures_since_genesis(&ctx).await?; - effect_builder.announce_finished_chain_syncing().await; ctx.progress.finish(); info!("finished chain sync to genesis"); Ok(()) @@ -1790,7 +1756,7 @@ where + Send, { let start = Timestamp::now(); - let peer_list = get_peers(true, ctx).await; + let peer_list = get_peers(ctx).await; let mut sig_collector = BlockSignaturesCollector::new(); @@ -2135,7 +2101,7 @@ where let mut attempts = 0; while !blocks_match { // Could be wrong approvals - fetch new sets of approvals from a single peer and retry. - for peer in get_peers(true, ctx).await { + for peer in get_peers(ctx).await { attempts += 1; warn!( fetched_block=%block, diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 9f9342493c..34f5db5a62 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -47,10 +47,7 @@ use std::{ fs::OpenOptions, net::{SocketAddr, TcpListener}, num::NonZeroUsize, - sync::{ - atomic::{AtomicBool, Ordering}, - Arc, Mutex, - }, + sync::{Arc, Mutex}, time::{Duration, Instant}, }; @@ -107,9 +104,7 @@ use self::{ use crate::{ components::{consensus, Component}, effect::{ - announcements::{ - BlocklistAnnouncement, ChainSynchronizerAnnouncement, ContractRuntimeAnnouncement, - }, + announcements::{BlocklistAnnouncement, ContractRuntimeAnnouncement}, requests::{BeginGossipRequest, NetworkInfoRequest, NetworkRequest, StorageRequest}, AutoClosingResponder, EffectBuilder, EffectExt, Effects, }, @@ -170,9 +165,6 @@ where /// Tracks whether a connection is symmetric or not. connection_symmetries: HashMap, - /// Tracks nodes that have announced themselves as nodes that are syncing. - syncing_nodes: HashSet, - /// Channel signaling a shutdown of the small network. // Note: This channel is closed when `SmallNetwork` is dropped, signalling the receivers that // they should cease operation. @@ -371,7 +363,6 @@ where tarpit_duration: cfg.tarpit_duration, tarpit_chance: cfg.tarpit_chance, max_in_flight_demands: demand_max, - is_syncing: AtomicBool::new(true), }); // Run the server task. @@ -396,7 +387,6 @@ where context, outgoing_manager, connection_symmetries: HashMap::new(), - syncing_nodes: HashSet::new(), shutdown_sender: Some(server_shutdown_sender), close_incoming_sender: Some(close_incoming_sender), close_incoming_receiver, @@ -436,13 +426,6 @@ where Ok((component, effects)) } - fn close_incoming_connections(&mut self) { - info!("disconnecting incoming connections"); - let (close_incoming_sender, close_incoming_receiver) = watch::channel(()); - self.close_incoming_sender = Some(close_incoming_sender); - self.close_incoming_receiver = close_incoming_receiver; - } - /// Queues a message to be sent to all nodes. fn broadcast_message(&self, msg: Arc>) { self.net_metrics.broadcast_requests.inc(); @@ -493,13 +476,6 @@ where ) { // Try to send the message. if let Some(connection) = self.outgoing_manager.get_route(dest) { - if msg.payload_is_unsafe_for_syncing_nodes() && self.syncing_nodes.contains(&dest) { - // We should never attempt to send an unsafe message to a peer that we know is still - // syncing. Since "unsafe" does usually not mean immediately catastrophic, we - // attempt to carry on, but warn loudly. - error!(kind=%msg.classify(), node_id=%dest, "sending unsafe message to syncing node"); - } - if let Err(msg) = connection.sender.send((msg, opt_responder)) { // We lost the connection, but that fact has not reached us yet. warn!(our_id=%self.context.our_id, %dest, ?msg, "dropped outgoing message, lost connection"); @@ -762,7 +738,6 @@ where peer_id, peer_consensus_public_key, transport, - is_syncing, } => { info!("new outgoing connection established"); @@ -787,7 +762,6 @@ where .mark_outgoing(now) { self.connection_completed(peer_id); - self.update_syncing_nodes_set(peer_id, is_syncing); } // `rust-openssl` does not support the futures 0.3 `AsyncWrite` trait (it uses the @@ -902,19 +876,6 @@ where self.net_metrics.peers.set(self.peers().len() as i64); } - /// Updates a set of known joining nodes. - /// If we've just connected to a non-joining node that peer will be removed from the set. - fn update_syncing_nodes_set(&mut self, peer_id: NodeId, is_syncing: bool) { - // Update set of syncing peers. - if is_syncing { - debug!(%peer_id, "is syncing"); - self.syncing_nodes.insert(peer_id); - } else { - debug!(%peer_id, "is no longer syncing"); - self.syncing_nodes.remove(&peer_id); - } - } - /// Returns the set of connected nodes. pub(crate) fn peers(&self) -> BTreeMap { let mut ret = BTreeMap::new(); @@ -1078,20 +1039,6 @@ where responder.respond(symmetric_peers).ignore() } - NetworkInfoRequest::FullyConnectedNonSyncingPeers { responder } => { - let mut symmetric_validator_peers: Vec = self - .connection_symmetries - .iter() - .filter_map(|(node_id, sym)| { - matches!(sym, ConnectionSymmetry::Symmetric { .. }).then(|| *node_id) - }) - .filter(|node_id| !self.syncing_nodes.contains(node_id)) - .collect(); - - symmetric_validator_peers.shuffle(rng); - - responder.respond(symmetric_validator_peers).ignore() - } }, Event::PeerAddressReceived(gossiped_address) => { let requests = self.outgoing_manager.learn_addr( @@ -1189,11 +1136,6 @@ where effects } - Event::ChainSynchronizerAnnouncement(ChainSynchronizerAnnouncement::SyncFinished) => { - self.context.is_syncing.store(false, Ordering::SeqCst); - self.close_incoming_connections(); - Effects::new() - } } } } diff --git a/node/src/components/small_network/chain_info.rs b/node/src/components/small_network/chain_info.rs index 4d0059a8f8..5e5094c082 100644 --- a/node/src/components/small_network/chain_info.rs +++ b/node/src/components/small_network/chain_info.rs @@ -51,7 +51,6 @@ impl ChainInfo { public_addr: SocketAddr, consensus_keys: Option<&ConsensusKeyPair>, connection_id: ConnectionId, - is_syncing: bool, ) -> Message

{ Message::Handshake { network_name: self.network_name.clone(), @@ -59,7 +58,6 @@ impl ChainInfo { protocol_version: self.protocol_version, consensus_certificate: consensus_keys .map(|key_pair| ConsensusCertificate::create(connection_id, key_pair)), - is_syncing, chainspec_hash: Some(self.chainspec_hash), } } diff --git a/node/src/components/small_network/event.rs b/node/src/components/small_network/event.rs index 0cd9a13ca0..322d4364fb 100644 --- a/node/src/components/small_network/event.rs +++ b/node/src/components/small_network/event.rs @@ -16,9 +16,7 @@ use super::{ }; use crate::{ effect::{ - announcements::{ - BlocklistAnnouncement, ChainSynchronizerAnnouncement, ContractRuntimeAnnouncement, - }, + announcements::{BlocklistAnnouncement, ContractRuntimeAnnouncement}, requests::{NetworkInfoRequest, NetworkRequest}, }, protocol::Message as ProtocolMessage, @@ -102,10 +100,6 @@ where /// Contract runtime announcement. #[from] ContractRuntimeAnnouncement(ContractRuntimeAnnouncement), - - /// Chain synchronizer announcement. - #[from] - ChainSynchronizerAnnouncement(ChainSynchronizerAnnouncement), } impl From> for Event { @@ -158,9 +152,6 @@ where Event::SweepOutgoing => { write!(f, "sweep outgoing connections") } - Event::ChainSynchronizerAnnouncement(ann) => { - write!(f, "handling chain synchronizer announcement: {}", ann) - } } } } @@ -269,8 +260,6 @@ pub(crate) enum OutgoingConnection { /// Sink for outgoing messages. #[serde(skip)] transport: Transport, - /// Holds the information whether the remote node is syncing. - is_syncing: bool, }, } @@ -291,13 +280,8 @@ impl Display for OutgoingConnection { peer_id, peer_consensus_public_key, transport: _, - is_syncing, } => { - write!( - f, - "connection established to {}/{}, is_syncing: {}", - peer_addr, peer_id, is_syncing - )?; + write!(f, "connection established to {}/{}", peer_addr, peer_id,)?; if let Some(public_key) = peer_consensus_public_key { write!(f, " [{}]", public_key) diff --git a/node/src/components/small_network/handshake.rs b/node/src/components/small_network/handshake.rs index 9aca7f0f83..d0dbc5a4d3 100644 --- a/node/src/components/small_network/handshake.rs +++ b/node/src/components/small_network/handshake.rs @@ -6,7 +6,7 @@ //! This module contains an implementation for a minimal framing format based on 32-bit fixed size //! big endian length prefixes. -use std::{net::SocketAddr, sync::atomic::Ordering, time::Duration}; +use std::{net::SocketAddr, time::Duration}; use casper_types::PublicKey; use rand::Rng; @@ -30,8 +30,6 @@ pub(super) struct HandshakeOutcome { pub(super) public_addr: SocketAddr, /// The public key the peer is validating with, if any. pub(super) peer_consensus_public_key: Option, - /// Holds the information whether the remote node is syncing. - pub(super) is_peer_syncing: bool, } /// Reads a 32 byte big endian integer prefix, followed by an actual raw message. @@ -119,7 +117,6 @@ where context.public_addr, context.consensus_keys.as_ref(), connection_id, - context.is_syncing.load(Ordering::SeqCst), ); let serialized_handshake_message = @@ -156,7 +153,6 @@ where public_addr, protocol_version, consensus_certificate, - is_syncing, chainspec_hash, } = remote_message { @@ -213,7 +209,6 @@ where transport, public_addr, peer_consensus_public_key, - is_peer_syncing: is_syncing, }) } else { // Received a non-handshake, this is an error. diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 0457f28516..74def39180 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -39,9 +39,6 @@ pub(crate) enum Message

{ /// A self-signed certificate indicating validator status. #[serde(default)] consensus_certificate: Option, - /// True if the node is syncing. - #[serde(default)] - is_syncing: bool, /// Hash of the chainspec the node is running. #[serde(default)] chainspec_hash: Option, @@ -77,15 +74,6 @@ impl Message

{ } } - /// Returns whether or not the payload is unsafe for syncing node consumption. - #[inline] - pub(super) fn payload_is_unsafe_for_syncing_nodes(&self) -> bool { - match self { - Message::Handshake { .. } => false, - Message::Payload(payload) => payload.is_unsafe_for_syncing_peers(), - } - } - /// Attempts to create a demand-event from this message. /// /// Succeeds if the outer message contains a payload that can be converd into a demand. @@ -263,17 +251,16 @@ impl Display for Message

{ public_addr, protocol_version, consensus_certificate, - is_syncing, chainspec_hash, } => { write!( f, - "handshake: {}, public addr: {}, protocol_version: {}, consensus_certificate: {}, is_syncing: {}, chainspec_hash: {}", + "handshake: {}, public addr: {}, protocol_version: {}, consensus_certificate: {}, chainspec_hash: {}", network_name, public_addr, protocol_version, OptDisplay::new(consensus_certificate.as_ref(), "none"), - is_syncing, + OptDisplay::new(chainspec_hash.as_ref(), "none") ) } @@ -372,11 +359,6 @@ pub(crate) trait Payload: false } - /// Indicates a message is not safe to send to a syncing node. - /// - /// This functionality should be removed once multiplexed networking lands. - fn is_unsafe_for_syncing_peers(&self) -> bool; - /// Determine which channel a message is supposed to sent/received on. fn get_channel(&self) -> Channel; } @@ -584,7 +566,6 @@ mod tests { public_addr: ([12, 34, 56, 78], 12346).into(), protocol_version: ProtocolVersion::from_parts(5, 6, 7), consensus_certificate: Some(ConsensusCertificate::random(&mut rng)), - is_syncing: false, chainspec_hash: Some(Digest::hash("example-chainspec")), }; @@ -619,14 +600,14 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, + chainspec_hash, } => { assert_eq!(network_name, "example-handshake"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::V1_0_0); assert!(consensus_certificate.is_none()); - assert!(!is_syncing); + assert!(chainspec_hash.is_none()) } Message::Payload(_) => { @@ -645,15 +626,14 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, + chainspec_hash, } => { - assert!(!is_syncing); assert_eq!(network_name, "serialization-test"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::V1_0_0); assert!(consensus_certificate.is_none()); - assert!(!is_syncing); + assert!(chainspec_hash.is_none()) } Message::Payload(_) => { @@ -672,13 +652,13 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, + chainspec_hash, } => { assert_eq!(network_name, "example-handshake"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::from_parts(1, 4, 2)); - assert!(!is_syncing); + let ConsensusCertificate { public_key, signature, @@ -699,7 +679,7 @@ mod tests { ) .unwrap() ); - assert!(!is_syncing); + assert!(chainspec_hash.is_none()) } Message::Payload(_) => { @@ -718,10 +698,9 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, + chainspec_hash, } => { - assert!(!is_syncing); assert_eq!(network_name, "example-handshake"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::from_parts(1, 4, 3)); @@ -745,7 +724,7 @@ mod tests { ) .unwrap() ); - assert!(!is_syncing); + assert!(chainspec_hash.is_none()) } Message::Payload(_) => { diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 0aef7b16e6..6dfecdc3cf 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -4,7 +4,7 @@ use std::{ fmt::Display, net::SocketAddr, pin::Pin, - sync::{atomic::AtomicBool, Arc, Weak}, + sync::{Arc, Weak}, }; use bincode::{self, Options}; @@ -142,7 +142,6 @@ where transport, public_addr, peer_consensus_public_key, - is_peer_syncing: is_syncing, }) => { if let Some(ref public_key) = peer_consensus_public_key { Span::current().record("validator_id", &field::display(public_key)); @@ -158,7 +157,6 @@ where peer_id, peer_consensus_public_key, transport, - is_syncing, } } Err(error) => OutgoingConnection::Failed { @@ -206,8 +204,6 @@ where pub(super) tarpit_chance: f32, /// Maximum number of demands allowed to be running at once. If 0, no limit is enforced. pub(super) max_in_flight_demands: usize, - /// Flag indicating whether this node is syncing. - pub(super) is_syncing: AtomicBool, } impl NetworkContext { @@ -257,7 +253,6 @@ where transport, public_addr, peer_consensus_public_key, - is_peer_syncing: _, }) => { if let Some(ref public_key) = peer_consensus_public_key { Span::current().record("validator_id", &field::display(public_key)); diff --git a/node/src/components/small_network/tests.rs b/node/src/components/small_network/tests.rs index f35206c1a5..e890775e23 100644 --- a/node/src/components/small_network/tests.rs +++ b/node/src/components/small_network/tests.rs @@ -160,10 +160,6 @@ impl Payload for Message { 0 } - fn is_unsafe_for_syncing_peers(&self) -> bool { - false - } - fn get_channel(&self) -> super::Channel { super::Channel::Network } diff --git a/node/src/effect.rs b/node/src/effect.rs index ae368d6010..4ab4ceed2c 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -143,7 +143,6 @@ use crate::{ small_network::FromIncoming, }, contract_runtime::SpeculativeExecutionState, - effect::announcements::ChainSynchronizerAnnouncement, reactor::{EventQueueHandle, QueueKind}, types::{ AvailableBlockRange, Block, BlockAndDeploys, BlockHash, BlockHeader, @@ -766,18 +765,6 @@ impl EffectBuilder { .await } - /// Gets the current network non-syncing peers in random order. - pub async fn get_fully_connected_non_syncing_peers(self) -> Vec - where - REv: From, - { - self.make_request( - |responder| NetworkInfoRequest::FullyConnectedNonSyncingPeers { responder }, - QueueKind::Regular, - ) - .await - } - /// Announces which deploys have expired. pub(crate) async fn announce_expired_deploys(self, hashes: Vec) where @@ -1670,19 +1657,6 @@ impl EffectBuilder { .await } - /// Announce that the sync process has finished. - pub(crate) async fn announce_finished_chain_syncing(self) - where - REv: From, - { - self.event_queue - .schedule( - ChainSynchronizerAnnouncement::SyncFinished, - QueueKind::Network, - ) - .await - } - /// The linear chain has stored a newly-created block. pub(crate) async fn announce_block_added(self, block: Box) where diff --git a/node/src/effect/announcements.rs b/node/src/effect/announcements.rs index 75026ab67d..83c68645aa 100644 --- a/node/src/effect/announcements.rs +++ b/node/src/effect/announcements.rs @@ -346,23 +346,3 @@ impl Display for ContractRuntimeAnnouncement { } } } - -/// A chain synchronizer announcement. -#[derive(Debug, Serialize)] -pub(crate) enum ChainSynchronizerAnnouncement { - /// The node has finished the synchronization it was doing (fast-sync or sync-to-genesis, - /// depending on config) and may now accept requests that are unsafe for nodes that are - /// synchronizing. Once this message is received, the only way for the peer to signal it's in - /// the syncing process is to reconnect. - SyncFinished, -} - -impl Display for ChainSynchronizerAnnouncement { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - match self { - ChainSynchronizerAnnouncement::SyncFinished => { - write!(f, "synchronization finished") - } - } - } -} diff --git a/node/src/effect/requests.rs b/node/src/effect/requests.rs index 1e15f3c2e7..73d3cab0cf 100644 --- a/node/src/effect/requests.rs +++ b/node/src/effect/requests.rs @@ -200,11 +200,6 @@ pub(crate) enum NetworkInfoRequest { /// Responder to be called with all connected in random order peers. responder: Responder>, }, - /// Get only non-syncing peers in random order. - FullyConnectedNonSyncingPeers { - /// Responder to be called with all connected non-syncing peers in random order. - responder: Responder>, - }, } impl Display for NetworkInfoRequest { @@ -216,9 +211,6 @@ impl Display for NetworkInfoRequest { NetworkInfoRequest::FullyConnectedPeers { responder: _ } => { write!(formatter, "get fully connected peers") } - NetworkInfoRequest::FullyConnectedNonSyncingPeers { responder: _ } => { - write!(formatter, "get fully connected non-syncing peers") - } } } } diff --git a/node/src/protocol.rs b/node/src/protocol.rs index 686838c2f3..30117ac890 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -139,20 +139,6 @@ impl Payload for Message { } } - #[inline] - fn is_unsafe_for_syncing_peers(&self) -> bool { - match self { - Message::Consensus(_) => false, - Message::DeployGossiper(_) => false, - Message::AddressGossiper(_) => false, - // Trie requests can deadlock between syncing nodes. - Message::GetRequest { tag, .. } if *tag == Tag::TrieOrChunk => true, - Message::GetRequest { .. } => false, - Message::GetResponse { .. } => false, - Message::FinalitySignature(_) => false, - } - } - #[inline] fn get_channel(&self) -> Channel { match self { diff --git a/node/src/reactor/joiner.rs b/node/src/reactor/joiner.rs index f9a09042e8..69b4772af4 100644 --- a/node/src/reactor/joiner.rs +++ b/node/src/reactor/joiner.rs @@ -41,9 +41,9 @@ use crate::{ contract_runtime, effect::{ announcements::{ - BlocklistAnnouncement, ChainSynchronizerAnnouncement, ChainspecLoaderAnnouncement, - ContractRuntimeAnnouncement, ControlAnnouncement, DeployAcceptorAnnouncement, - GossiperAnnouncement, LinearChainAnnouncement, + BlocklistAnnouncement, ChainspecLoaderAnnouncement, ContractRuntimeAnnouncement, + ControlAnnouncement, DeployAcceptorAnnouncement, GossiperAnnouncement, + LinearChainAnnouncement, }, diagnostics_port::DumpConsensusStateRequest, incoming::{ @@ -180,8 +180,6 @@ pub(crate) enum JoinerEvent { #[from] ChainspecLoaderAnnouncement(#[serde(skip_serializing)] ChainspecLoaderAnnouncement), #[from] - ChainSynchronizerAnnouncement(#[serde(skip_serializing)] ChainSynchronizerAnnouncement), - #[from] ConsensusRequest(#[serde(skip_serializing)] ConsensusRequest), #[from] ConsensusMessageIncoming(ConsensusMessageIncoming), @@ -284,7 +282,6 @@ impl ReactorEvent for JoinerEvent { JoinerEvent::DeployGossiperAnnouncement(_) => "DeployGossiperAnnouncement", JoinerEvent::BlockHeadersBatchFetcherRequest(_) => "BlockHeadersBatchFetcherRequest", JoinerEvent::FinalitySignaturesFetcherRequest(_) => "FinalitySignaturesFetcherRequest", - JoinerEvent::ChainSynchronizerAnnouncement(_) => "ChainSynchronizerAnnouncement", } } } @@ -446,9 +443,6 @@ impl Display for JoinerEvent { JoinerEvent::FinalitySignaturesFetcherRequest(inner) => { write!(f, "finality signatures fetch request: {}", inner) } - JoinerEvent::ChainSynchronizerAnnouncement(ann) => { - write!(f, "chain synchronizer announcement: {}", ann) - } } } } @@ -860,12 +854,6 @@ impl reactor::Reactor for Reactor { ); self.dispatch_event(effect_builder, rng, reactor_event) } - JoinerEvent::ChainSynchronizerAnnouncement( - ChainSynchronizerAnnouncement::SyncFinished, - ) => { - warn!("unexpected sync finished announcement in the joiner"); - Effects::new() - } JoinerEvent::RestServer(event) => reactor::wrap_effects( JoinerEvent::RestServer, self.rest_server.handle_event(effect_builder, rng, event), diff --git a/node/src/reactor/participating.rs b/node/src/reactor/participating.rs index fe354adf60..78632d06d1 100644 --- a/node/src/reactor/participating.rs +++ b/node/src/reactor/participating.rs @@ -48,10 +48,10 @@ use crate::{ contract_runtime, effect::{ announcements::{ - BlockProposerAnnouncement, BlocklistAnnouncement, ChainSynchronizerAnnouncement, - ChainspecLoaderAnnouncement, ConsensusAnnouncement, ContractRuntimeAnnouncement, - ControlAnnouncement, DeployAcceptorAnnouncement, GossiperAnnouncement, - LinearChainAnnouncement, RpcServerAnnouncement, + BlockProposerAnnouncement, BlocklistAnnouncement, ChainspecLoaderAnnouncement, + ConsensusAnnouncement, ContractRuntimeAnnouncement, ControlAnnouncement, + DeployAcceptorAnnouncement, GossiperAnnouncement, LinearChainAnnouncement, + RpcServerAnnouncement, }, diagnostics_port::DumpConsensusStateRequest, incoming::{ @@ -217,8 +217,6 @@ pub(crate) enum ParticipatingEvent { #[from] ChainspecLoaderAnnouncement(#[serde(skip_serializing)] ChainspecLoaderAnnouncement), #[from] - ChainSynchronizerAnnouncement(#[serde(skip_serializing)] ChainSynchronizerAnnouncement), - #[from] BlocklistAnnouncement(BlocklistAnnouncement), #[from] ConsensusMessageIncoming(ConsensusMessageIncoming), @@ -339,7 +337,6 @@ impl ReactorEvent for ParticipatingEvent { ParticipatingEvent::TrieResponseIncoming(_) => "TrieResponseIncoming", ParticipatingEvent::FinalitySignatureIncoming(_) => "FinalitySignatureIncoming", ParticipatingEvent::ContractRuntime(_) => "ContractRuntime", - ParticipatingEvent::ChainSynchronizerAnnouncement(_) => "ChainSynchronizerAnnouncement", } } } @@ -520,9 +517,6 @@ impl Display for ParticipatingEvent { ParticipatingEvent::BlocklistAnnouncement(ann) => { write!(f, "blocklist announcement: {}", ann) } - ParticipatingEvent::ChainSynchronizerAnnouncement(ann) => { - write!(f, "chain synchronizer announcement: {}", ann) - } ParticipatingEvent::ConsensusMessageIncoming(inner) => Display::fmt(inner, f), ParticipatingEvent::DeployGossiperIncoming(inner) => Display::fmt(inner, f), ParticipatingEvent::AddressGossiperIncoming(inner) => Display::fmt(inner, f), @@ -1389,17 +1383,6 @@ impl reactor::Reactor for Reactor { ); self.dispatch_event(effect_builder, rng, reactor_event) } - ParticipatingEvent::ChainSynchronizerAnnouncement( - ChainSynchronizerAnnouncement::SyncFinished, - ) => self.dispatch_event( - effect_builder, - rng, - ParticipatingEvent::SmallNetwork( - small_network::Event::ChainSynchronizerAnnouncement( - ChainSynchronizerAnnouncement::SyncFinished, - ), - ), - ), ParticipatingEvent::ChainspecLoaderAnnouncement( ChainspecLoaderAnnouncement::UpgradeActivationPointRead(next_upgrade), ) => { From ab5503fff890c0d3e88384e40d217319572074e7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 3 Nov 2022 15:22:17 +0100 Subject: [PATCH 244/735] muxink: Bring formatting in line with (currently slightly broken) CI formatting --- muxink/src/backpressured.rs | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index d7454d9470..ea8312b6d5 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -144,8 +144,9 @@ impl BackpressuredSink { impl Sink for BackpressuredSink where - // TODO: `Unpin` trait bounds can be - // removed by using `map_unchecked` if + // TODO: `Unpin` trait bounds + // can be removed by using + // `map_unchecked` if // necessary. S: Sink + Unpin, Self: Unpin, @@ -704,7 +705,8 @@ mod tests { assert_eq!(server.last_received, 4); assert_eq!(server.items_processed, 2); - // Send another item. ACKs will be received at the start, so while it looks like as if we cannot send the item initially, the incoming ACK(2) will fix this. + // Send another item. ACKs will be received at the start, so while it looks like as if we + // cannot send the item initially, the incoming ACK(2) will fix this. assert_eq!(client.last_request, 4); assert_eq!(client.received_ack, 0); client.encode_and_send(4u8).now_or_never().unwrap().unwrap(); From 81dfffe5911bbdc620cae7b46405362754960a05 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 9 Nov 2022 09:31:01 +0100 Subject: [PATCH 245/735] Use `network_ca` instead of `is_syncing` to determine whether a network is public or private when showing insights --- node/src/components/small_network/insights.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/components/small_network/insights.rs b/node/src/components/small_network/insights.rs index 498b71cbd2..0589e26031 100644 --- a/node/src/components/small_network/insights.rs +++ b/node/src/components/small_network/insights.rs @@ -297,7 +297,7 @@ impl Display for NetworkInsights { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { let now = SystemTime::now(); - if self.is_syncing { + if !self.network_ca { f.write_str("Public ")?; } else { f.write_str("Private ")?; From c3e09efff4ba497cfa27fab1ec1db0c7bbfd1764 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 15 Nov 2022 21:50:03 +0100 Subject: [PATCH 246/735] Make `Channel` enumerable through `strum` --- Cargo.lock | 27 ++++++++++++++++++-- node/Cargo.toml | 1 + node/src/components/small_network/message.rs | 3 ++- 3 files changed, 28 insertions(+), 3 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index b952d27c46..1fd27c425a 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -590,6 +590,7 @@ dependencies = [ "static_assertions", "stats_alloc", "structopt", + "strum 0.24.1", "sys-info", "tempfile", "thiserror", @@ -656,7 +657,7 @@ dependencies = [ "serde_bytes", "serde_json", "serde_test", - "strum", + "strum 0.21.0", "tempfile", "thiserror", "uint", @@ -4417,7 +4418,16 @@ version = "0.21.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2" dependencies = [ - "strum_macros", + "strum_macros 0.21.1", +] + +[[package]] +name = "strum" +version = "0.24.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "063e6045c0e62079840579a7e47a355ae92f60eb74daaf156fb1e84ba164e63f" +dependencies = [ + "strum_macros 0.24.3", ] [[package]] @@ -4432,6 +4442,19 @@ dependencies = [ "syn", ] +[[package]] +name = "strum_macros" +version = "0.24.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59" +dependencies = [ + "heck 0.4.0", + "proc-macro2", + "quote", + "rustversion", + "syn", +] + [[package]] name = "subtle" version = "2.4.1" diff --git a/node/Cargo.toml b/node/Cargo.toml index f7ccdc0dfc..151a936e0b 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -74,6 +74,7 @@ smallvec = { version = "1", features = ["serde"] } static_assertions = "1" stats_alloc = "0.1.8" structopt = "0.3.14" +strum = { version = "0.24.1", features = ["derive"] } sys-info = "0.8.0" tempfile = "3" thiserror = "1" diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 8081ddd5b4..cba169683f 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -14,6 +14,7 @@ use serde::{ de::{DeserializeOwned, Error as SerdeError}, Deserialize, Deserializer, Serialize, Serializer, }; +use strum::{EnumCount, EnumIter}; use crate::{effect::EffectBuilder, types::NodeId, utils::opt_display::OptDisplay}; @@ -321,7 +322,7 @@ impl Display for MessageKind { /// /// Further separation is done to improve quality of service of certain subsystems, e.g. to /// guarantee that consensus is not impaired by the transfer of large trie nodes. -#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd)] +#[derive(Copy, Clone, Debug, Eq, EnumCount, EnumIter, PartialEq, Ord, PartialOrd)] #[repr(u8)] pub(crate) enum Channel { /// Networking layer messages, e.g. address gossip. From 99ccf4a36b0ad1194442fb09b340df3704451237 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 17 Nov 2022 15:18:53 +0100 Subject: [PATCH 247/735] Add a shareable `StickyFlag` implementation --- node/src/utils.rs | 81 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 79 insertions(+), 2 deletions(-) diff --git a/node/src/utils.rs b/node/src/utils.rs index d1326049b3..1b940fd917 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -35,6 +35,7 @@ use once_cell::sync::Lazy; use prometheus::{self, Histogram, HistogramOpts, Registry}; use serde::Serialize; use thiserror::Error; +use tokio::sync::Notify; use tracing::{error, warn}; pub(crate) use display_error::display_error; @@ -156,7 +157,7 @@ pub(crate) fn leak(value: T) -> &'static T { Box::leak(Box::new(value)) } -/// A flag shared across multiple subsystem. +/// A flag shared across multiple subsystems. #[derive(Copy, Clone, DataSize, Debug)] pub(crate) struct SharedFlag(&'static AtomicBool); @@ -195,6 +196,59 @@ impl Default for SharedFlag { } } +/// A flag that can be set once and shared across multiple threads, while allowing waits for change. +#[derive(Clone, Debug)] +pub(crate) struct StickyFlag(Arc); + +impl StickyFlag { + /// Creates a new sticky flag. + /// + /// The flag will start out as not set. + pub(crate) fn new() -> Self { + StickyFlag(Arc::new(StickyFlagInner { + flag: AtomicBool::new(false), + notify: Notify::new(), + })) + } +} + +/// Inner implementation of the `StickyFlag`. +#[derive(Debug)] +struct StickyFlagInner { + /// The flag to be cleared. + flag: AtomicBool, + /// Notification that the flag has been changed. + notify: Notify, +} + +impl StickyFlag { + /// Sets the flag. + /// + /// Will always send a notification, regardless of whether the flag was actually changed. + pub(crate) fn set(&self) { + self.0.flag.store(true, Ordering::SeqCst); + self.0.notify.notify_waiters(); + } + + /// Waits for the flag to be set. + /// + /// If the flag is already set, returns immediately, otherwise waits for the notification. + /// + /// The future returned by this function is safe to cancel. + pub(crate) async fn wait(&self) { + // Note: We will catch all notifications from the point on where `notified()` is called, so + // we first construct the future, then check the flag. Any notification sent while we + // were loading will be caught in the `notified.await`. + let notified = self.0.notify.notified(); + + if self.0.flag.load(Ordering::SeqCst) { + return; + } + + notified.await; + } +} + /// A display-helper that shows iterators display joined by ",". #[derive(Debug)] pub(crate) struct DisplayIter(RefCell>); @@ -483,9 +537,11 @@ impl TimeAnchor { mod tests { use std::{sync::Arc, time::Duration}; + use futures::FutureExt; + use crate::utils::SharedFlag; - use super::{wait_for_arc_drop, xor}; + use super::{wait_for_arc_drop, xor, StickyFlag}; #[test] fn xor_works() { @@ -559,4 +615,25 @@ mod tests { assert!(flag.is_set()); assert!(copied.is_set()); } + + #[test] + fn sticky_flag_sanity_check() { + let flag = StickyFlag::new(); + assert!(flag.wait().now_or_never().is_none()); + + flag.set(); + + // Should finish immediately due to the flag being set. + assert!(flag.wait().now_or_never().is_some()); + } + + #[test] + fn sticky_flag_race_condition_check() { + let flag = StickyFlag::new(); + assert!(flag.wait().now_or_never().is_none()); + + let waiting = flag.wait(); + flag.set(); + assert!(waiting.now_or_never().is_some()); + } } From 0a97c6e09a23241cb52665dd32d78fa8f45d6cfb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 17 Nov 2022 17:43:59 +0100 Subject: [PATCH 248/735] Add a utility function for transfering data from a channel into a sink --- node/src/components/small_network/tasks.rs | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 6dfecdc3cf..3fb7adfb3c 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -574,3 +574,37 @@ pub(super) async fn message_sender

( }; } } + +/// Receives data from an async channel and forwards it into a suitable sink. +/// +/// Will loop forever, until either told to stop through the `stop` flag, or a send error occurs. +async fn shovel_data( + mut source: UnboundedReceiver>, + mut dest: S, + stop: StickyFlag, +) -> Result<(), >>>::Error> +where + P: Send + Sync, + S: Sink>> + Unpin, +{ + loop { + let recv = source.recv(); + pin_mut!(recv); + let stop_wait = stop.wait(); + pin_mut!(stop_wait); + + match future::select(recv, stop_wait).await { + Either::Left((Some((message, responder)), _)) => { + dest.send(message).await?; + } + Either::Left((None, _)) => { + trace!("sink closed"); + return Ok(()); + } + Either::Right((_, _)) => { + trace!("received stop signal"); + return Ok(()); + } + } + } +} From cd3a0c7cd000239a66309ccf0c53d509eb543901 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 10:27:19 +0100 Subject: [PATCH 249/735] Write first complete version of `encoded_message_sender` --- Cargo.lock | 7 ++ node/Cargo.toml | 1 + node/src/components/small_network.rs | 5 +- node/src/components/small_network/message.rs | 4 +- node/src/components/small_network/tasks.rs | 116 +++++++++++++++++-- 5 files changed, 118 insertions(+), 15 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 1fd27c425a..7f84176f68 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -106,6 +106,12 @@ version = "1.0.60" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "c794e162a5eff65c72ef524dfe393eb923c354e350bb78b9c7383df13f3bc142" +[[package]] +name = "array-init" +version = "2.0.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "bfb6d71005dc22a708c7496eee5c8dc0300ee47355de6256c3b35b12b5fef596" + [[package]] name = "assert-json-diff" version = "2.0.2" @@ -524,6 +530,7 @@ version = "1.4.8" dependencies = [ "ansi_term", "anyhow", + "array-init", "assert-json-diff", "async-trait", "backtrace", diff --git a/node/Cargo.toml b/node/Cargo.toml index 151a936e0b..4bbd2dd890 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -14,6 +14,7 @@ default-run = "casper-node" [dependencies] ansi_term = "0.12.1" anyhow = "1" +array-init = "2.0.1" async-trait = "0.1.50" backtrace = "0.3.50" base16 = "0.2.1" diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 2847a5c3a2..6c05f912ea 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -61,7 +61,7 @@ use muxink::{ fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, framing::length_delimited::LengthDelimited, io::{FrameReader, FrameWriter}, - mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerHandle}, + mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerError, MultiplexerHandle}, }; use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; @@ -1251,6 +1251,9 @@ type OutgoingFrameWriter = /// The multiplexer to send fragments over an underlying frame writer. type OutgoingCarrier = Multiplexer; +/// The error type associated with the primary sink implementation of `OutgoingCarrier`. +type OutgoingCarrierError = MultiplexerError; + /// An instance of a channel on an outgoing carrier. type OutgoingChannel = Fragmentizer, Bytes>; diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index cba169683f..cdd7651b2c 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -14,7 +14,7 @@ use serde::{ de::{DeserializeOwned, Error as SerdeError}, Deserialize, Deserializer, Serialize, Serializer, }; -use strum::{EnumCount, EnumIter}; +use strum::{EnumCount, EnumIter, FromRepr}; use crate::{effect::EffectBuilder, types::NodeId, utils::opt_display::OptDisplay}; @@ -322,7 +322,7 @@ impl Display for MessageKind { /// /// Further separation is done to improve quality of service of certain subsystems, e.g. to /// guarantee that consensus is not impaired by the transfer of large trie nodes. -#[derive(Copy, Clone, Debug, Eq, EnumCount, EnumIter, PartialEq, Ord, PartialOrd)] +#[derive(Copy, Clone, Debug, Eq, EnumCount, EnumIter, FromRepr, PartialEq, Ord, PartialOrd)] #[repr(u8)] pub(crate) enum Channel { /// Networking layer messages, e.g. address gossip. diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 3fb7adfb3c..40b4aa470e 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -3,6 +3,7 @@ use std::{ fmt::Display, net::SocketAddr, + num::NonZeroUsize, pin::Pin, sync::{Arc, Weak}, }; @@ -11,9 +12,12 @@ use bincode::{self, Options}; use bytes::Bytes; use futures::{ future::{self, Either}, - SinkExt, StreamExt, + pin_mut, + stream::FuturesUnordered, + Sink, SinkExt, StreamExt, }; +use muxink::fragmented::Fragmentizer; use openssl::{ pkey::{PKey, Private}, ssl::Ssl, @@ -21,6 +25,7 @@ use openssl::{ }; use prometheus::IntGauge; use serde::de::DeserializeOwned; +use strum::{EnumCount, IntoEnumIterator}; use tokio::{ net::TcpStream, sync::{mpsc::UnboundedReceiver, watch, Semaphore}, @@ -42,8 +47,9 @@ use super::{ handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - BincodeFormat, EstimatorWeights, Event, FromIncoming, IncomingChannel, Message, Metrics, - OutgoingChannel, Payload, Transport, + BincodeFormat, Channel, EstimatorWeights, Event, FromIncoming, IncomingChannel, Message, + Metrics, OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, + MESSAGE_FRAGMENT_SIZE, }; use crate::{ @@ -51,7 +57,7 @@ use crate::{ reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::{display_error, LockedLineWriter}, + utils::{display_error, LockedLineWriter, StickyFlag}, }; /// An item on the internal outgoing message queue. @@ -60,6 +66,16 @@ use crate::{ /// successfully handed over to the kernel for sending. pub(super) type MessageQueueItem

= (Arc>, Option>); +/// An encoded network message, ready to be sent out. +pub(super) struct EncodedMessage { + /// The encoded payload of the outgoing message. + payload: Bytes, + /// The responder to send the notification once the message has been flushed or dropped. + /// + /// If `None`, the sender is not interested in knowing. + send_finished: Option>, +} + /// Low-level TLS connection function. /// /// Performs the actual TCP+TLS connection setup. @@ -575,17 +591,79 @@ pub(super) async fn message_sender

( } } -/// Receives data from an async channel and forwards it into a suitable sink. +/// Multi-channel encoded message sender. +/// +/// This tasks starts multiple message senders, each handling a single outgoing channel on the given +/// carrier. +/// +/// A channel sender will shut down if its receiving channel is closed or an error occurs. Once at +/// least one channel sender has shut down for any reason, the others will be signaled to shut down +/// as well. +/// +/// A passed in counter will be decremented +/// +/// This function only returns when all senders have been shut down. +pub(super) async fn encoded_message_sender( + queues: [UnboundedReceiver; Channel::COUNT], + carrier: OutgoingCarrier, + limiter: Box, +) -> Result<(), OutgoingCarrierError> { + // TODO: Once the necessary methods are stabilized, setup const fns to initialize `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. + let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); + let stop: StickyFlag = StickyFlag::new(); + + let mut boiler_room = FuturesUnordered::new(); + + for (channel, queue) in Channel::iter().zip(IntoIterator::into_iter(queues)) { + let mux_handle = carrier.create_channel_handle(channel as u8); + let channel: OutgoingChannel = Fragmentizer::new(fragment_size, mux_handle); + boiler_room.push(shovel_data(queue, channel, stop.clone())); + } + + // We track only the first result we receive from a sender, as subsequent errors may just be + // caused by the first one shutting down and are not the root cause. + let mut first_result = None; + loop { + let stop_wait = stop.wait(); + pin_mut!(stop_wait); + match future::select(boiler_room.next(), stop_wait).await { + Either::Left((None, _)) => { + // There are no more running senders left, so we can finish. + debug!("all senders finished"); + + return first_result.unwrap_or(Ok(())); + } + Either::Left((Some(sender_outcome), _)) => { + debug!(outcome=?sender_outcome, "sender stopped"); + + if first_result.is_none() { + first_result = Some(sender_outcome); + } + + // Signal all other senders stop as well. + stop.set(); + } + Either::Right((_, _)) => { + debug!("global shutdown"); + + // The component is shutting down, tell all existing data shovelers to put down + // their shovels and call it a day. + stop.set(); + } + } + } +} + +/// Receives network messages from an async channel, encodes and forwards it into a suitable sink. /// /// Will loop forever, until either told to stop through the `stop` flag, or a send error occurs. -async fn shovel_data( - mut source: UnboundedReceiver>, +async fn shovel_data( + mut source: UnboundedReceiver, mut dest: S, stop: StickyFlag, -) -> Result<(), >>>::Error> +) -> Result<(), >::Error> where - P: Send + Sync, - S: Sink>> + Unpin, + S: Sink + Unpin, { loop { let recv = source.recv(); @@ -594,8 +672,22 @@ where pin_mut!(stop_wait); match future::select(recv, stop_wait).await { - Either::Left((Some((message, responder)), _)) => { - dest.send(message).await?; + Either::Left(( + Some(EncodedMessage { + payload: data, + send_finished, + .. + }), + _, + )) => { + if let Some(responder) = send_finished { + dest.send(data).await?; + responder.respond(()).await; + } else { + // TODO: Using `feed` here may not be a good idea - can we rely on data being + // flushed eventually? + dest.feed(data).await?; + } } Either::Left((None, _)) => { trace!("sink closed"); From a67af756bf38e1a46e72cda72aaa00e370daa824 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 12:08:47 +0100 Subject: [PATCH 250/735] Add tokenized counter sanity check --- node/src/components/small_network/tasks.rs | 9 +++-- node/src/utils.rs | 39 +++++++++++++++++++++- 2 files changed, 45 insertions(+), 3 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 40b4aa470e..4f85b7ac6a 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -57,7 +57,7 @@ use crate::{ reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::{display_error, LockedLineWriter, StickyFlag}, + utils::{display_error, LockedLineWriter, StickyFlag, TokenizedCount}, }; /// An item on the internal outgoing message queue. @@ -74,6 +74,8 @@ pub(super) struct EncodedMessage { /// /// If `None`, the sender is not interested in knowing. send_finished: Option>, + /// We track the number of messages still buffered in memory, the token ensures accurate counts. + send_token: TokenizedCount, } /// Low-level TLS connection function. @@ -676,7 +678,7 @@ where Some(EncodedMessage { payload: data, send_finished, - .. + send_token, }), _, )) => { @@ -688,6 +690,9 @@ where // flushed eventually? dest.feed(data).await?; } + + // We only drop the token once the message is sent or at least buffered. + drop(send_token); } Either::Left((None, _)) => { trace!("sink closed"); diff --git a/node/src/utils.rs b/node/src/utils.rs index 1b940fd917..d3991dd401 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -32,7 +32,7 @@ use fs2::FileExt; use hyper::server::{conn::AddrIncoming, Builder, Server}; #[cfg(test)] use once_cell::sync::Lazy; -use prometheus::{self, Histogram, HistogramOpts, Registry}; +use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; use serde::Serialize; use thiserror::Error; use tokio::sync::Notify; @@ -249,6 +249,32 @@ impl StickyFlag { } } +/// An "unlimited semaphore". +/// +/// Upon construction, `TokenizedCount` increases a given `IntGauge` by one for metrics purposed. +/// +/// Once it is dropped, the underlying gauge will be decreased by one. +pub(crate) struct TokenizedCount { + /// The gauge modified on construction/drop. + gauge: Option, +} + +impl TokenizedCount { + /// Create a new tokenized count, increasing the given gauge. + pub(crate) fn new(gauge: IntGauge) -> Self { + gauge.inc(); + TokenizedCount { gauge: Some(gauge) } + } +} + +impl Drop for TokenizedCount { + fn drop(&mut self) { + if let Some(gauge) = self.gauge.take() { + gauge.dec(); + } + } +} + /// A display-helper that shows iterators display joined by ",". #[derive(Debug)] pub(crate) struct DisplayIter(RefCell>); @@ -538,6 +564,7 @@ mod tests { use std::{sync::Arc, time::Duration}; use futures::FutureExt; + use prometheus::IntGauge; use crate::utils::SharedFlag; @@ -627,6 +654,16 @@ mod tests { assert!(flag.wait().now_or_never().is_some()); } + #[test] + fn tokenized_count_sanity_check() { + let gauge = IntGauge::new("sanity_gauge", "tokenized count test gauge") + .expect("failed to construct IntGauge in test"); + + gauge.inc(); + gauge.inc(); + assert_eq!(gauge.get(), 2); + } + #[test] fn sticky_flag_race_condition_check() { let flag = StickyFlag::new(); From 15bfb9c4d99fd0ab39290c817167a45f5fe2d4ff Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 13:04:15 +0100 Subject: [PATCH 251/735] Use appropriate stopping variables in `encoded_message_sender` --- node/src/components/small_network/tasks.rs | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 4f85b7ac6a..4c9b27613c 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -602,33 +602,32 @@ pub(super) async fn message_sender

( /// least one channel sender has shut down for any reason, the others will be signaled to shut down /// as well. /// -/// A passed in counter will be decremented -/// /// This function only returns when all senders have been shut down. pub(super) async fn encoded_message_sender( queues: [UnboundedReceiver; Channel::COUNT], carrier: OutgoingCarrier, limiter: Box, + global_stop: StickyFlag, ) -> Result<(), OutgoingCarrierError> { // TODO: Once the necessary methods are stabilized, setup const fns to initialize `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); - let stop: StickyFlag = StickyFlag::new(); + let local_stop: StickyFlag = StickyFlag::new(); let mut boiler_room = FuturesUnordered::new(); for (channel, queue) in Channel::iter().zip(IntoIterator::into_iter(queues)) { let mux_handle = carrier.create_channel_handle(channel as u8); let channel: OutgoingChannel = Fragmentizer::new(fragment_size, mux_handle); - boiler_room.push(shovel_data(queue, channel, stop.clone())); + boiler_room.push(shovel_data(queue, channel, local_stop.clone())); } // We track only the first result we receive from a sender, as subsequent errors may just be // caused by the first one shutting down and are not the root cause. let mut first_result = None; loop { - let stop_wait = stop.wait(); - pin_mut!(stop_wait); - match future::select(boiler_room.next(), stop_wait).await { + let global_stop_wait = global_stop.wait(); + pin_mut!(global_stop_wait); + match future::select(boiler_room.next(), global_stop_wait).await { Either::Left((None, _)) => { // There are no more running senders left, so we can finish. debug!("all senders finished"); @@ -643,14 +642,14 @@ pub(super) async fn encoded_message_sender( } // Signal all other senders stop as well. - stop.set(); + local_stop.set(); } Either::Right((_, _)) => { debug!("global shutdown"); // The component is shutting down, tell all existing data shovelers to put down // their shovels and call it a day. - stop.set(); + local_stop.set(); } } } From dc612c67aef8af9267f65594d10d436a7aac1afe Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 14:09:13 +0100 Subject: [PATCH 252/735] Add limiter support --- node/src/components/small_network/tasks.rs | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 4c9b27613c..43e6cb242c 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -606,7 +606,7 @@ pub(super) async fn message_sender

( pub(super) async fn encoded_message_sender( queues: [UnboundedReceiver; Channel::COUNT], carrier: OutgoingCarrier, - limiter: Box, + limiter: Arc, global_stop: StickyFlag, ) -> Result<(), OutgoingCarrierError> { // TODO: Once the necessary methods are stabilized, setup const fns to initialize `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. @@ -618,7 +618,12 @@ pub(super) async fn encoded_message_sender( for (channel, queue) in Channel::iter().zip(IntoIterator::into_iter(queues)) { let mux_handle = carrier.create_channel_handle(channel as u8); let channel: OutgoingChannel = Fragmentizer::new(fragment_size, mux_handle); - boiler_room.push(shovel_data(queue, channel, local_stop.clone())); + boiler_room.push(shovel_data( + queue, + channel, + local_stop.clone(), + limiter.clone(), + )); } // We track only the first result we receive from a sender, as subsequent errors may just be @@ -662,6 +667,7 @@ async fn shovel_data( mut source: UnboundedReceiver, mut dest: S, stop: StickyFlag, + limiter: Arc, ) -> Result<(), >::Error> where S: Sink + Unpin, @@ -681,6 +687,7 @@ where }), _, )) => { + limiter.request_allowance(data.len() as u32).await; if let Some(responder) = send_finished { dest.send(data).await?; responder.respond(()).await; From b0336ddb19cf1be85617cf3aef6379957a785ee1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:33:02 +0100 Subject: [PATCH 253/735] Complete implementation of `TokenizedCount` by deriving `Debug` and finishing tests --- node/src/utils.rs | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/node/src/utils.rs b/node/src/utils.rs index d3991dd401..7133fc2a7d 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -254,6 +254,7 @@ impl StickyFlag { /// Upon construction, `TokenizedCount` increases a given `IntGauge` by one for metrics purposed. /// /// Once it is dropped, the underlying gauge will be decreased by one. +#[derive(Debug)] pub(crate) struct TokenizedCount { /// The gauge modified on construction/drop. gauge: Option, @@ -566,7 +567,7 @@ mod tests { use futures::FutureExt; use prometheus::IntGauge; - use crate::utils::SharedFlag; + use crate::utils::{SharedFlag, TokenizedCount}; use super::{wait_for_arc_drop, xor, StickyFlag}; @@ -662,6 +663,15 @@ mod tests { gauge.inc(); gauge.inc(); assert_eq!(gauge.get(), 2); + + let ticket1 = TokenizedCount::new(gauge.clone()); + let ticket2 = TokenizedCount::new(gauge.clone()); + + assert_eq!(gauge.get(), 4); + drop(ticket2); + assert_eq!(gauge.get(), 3); + drop(ticket1); + assert_eq!(gauge.get(), 2); } #[test] From 00addab2d1afbdc3e20045f51b49674a856e15df Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:35:03 +0100 Subject: [PATCH 254/735] Move `bincode_config` to module root and pin down encoding by defining serialization functions --- node/src/components/small_network.rs | 53 ++++++++++++++++++---- node/src/components/small_network/tasks.rs | 14 +----- 2 files changed, 46 insertions(+), 21 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 6c05f912ea..4355d2a20f 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -53,6 +53,7 @@ use std::{ time::{Duration, Instant}, }; +use bincode::Options; use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; @@ -82,15 +83,6 @@ use tracing::{debug, error, info, trace, warn, Instrument, Span}; use casper_types::{EraId, PublicKey}; -pub(crate) use self::{ - bincode_format::BincodeFormat, - config::Config, - error::Error, - event::Event, - gossiped_address::GossipedAddress, - insights::NetworkInsights, - message::{Channel, EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, -}; use self::{ blocklist::BlocklistJustification, chain_info::ChainInfo, @@ -104,6 +96,14 @@ use self::{ symmetry::ConnectionSymmetry, tasks::{MessageQueueItem, NetworkContext}, }; +pub(crate) use self::{ + config::Config, + error::Error, + event::Event, + gossiped_address::GossipedAddress, + insights::NetworkInsights, + message::{Channel, EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, +}; use crate::{ components::{consensus, Component}, @@ -1266,6 +1266,41 @@ type IncomingCarrier = Demultiplexer; /// An instance of a channel on an incoming carrier. type IncomingChannel = Defragmentizer>; +/// Setups bincode encoding used on the networking transport. +fn bincode_config() -> impl Options { + bincode::options() + .with_no_limit() // We rely on `muxink` to impose limits. + .with_little_endian() // Default at the time of this writing, we are merely pinning it. + .with_varint_encoding() // Same as above. + .reject_trailing_bytes() // There is no reason for us not to reject trailing bytes. +} + +/// Serializes a network message with the protocol specified encoding. +/// +/// This function exists as a convenience, because there never should be a failure in serializing +/// messages we produced ourselves. +fn serialize_network_message

(msg: &Message

) -> Option +where + P: Payload, +{ + bincode_config() + .serialize(&msg) + .map(Bytes::from) + .map_err(|err| { + error!(?msg, %err, "serialization failure when encoding outgoing message"); + err + }) + .ok() +} + +/// Deserializes a networking message from the protocol specified encoding. +fn deserialize_network_message

(bytes: &[u8]) -> Result, bincode::Error> +where + P: Payload, +{ + bincode_config().deserialize(bytes) +} + impl Debug for SmallNetwork where P: Payload, diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 43e6cb242c..3afaf74fc8 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -8,7 +8,6 @@ use std::{ sync::{Arc, Weak}, }; -use bincode::{self, Options}; use bytes::Bytes; use futures::{ future::{self, Either}, @@ -53,6 +52,7 @@ use super::{ }; use crate::{ + components::small_network::deserialize_network_message, effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, @@ -401,15 +401,6 @@ pub(super) async fn server( } } -/// Setups bincode encoding used on the networking transport. -fn bincode_config() -> impl Options { - bincode::options() - .with_no_limit() // We rely on `muxink` to impose limits. - .with_little_endian() // Default at the time of this writing, we are merely pinning it. - .with_varint_encoding() // Same as above. - .reject_trailing_bytes() // There is no reason for us not to reject trailing bytes. -} - /// Network message reader. /// /// Schedules all received messages until the stream is closed or an error occurs. @@ -430,8 +421,7 @@ where let read_messages = async move { while let Some(frame_result) = stream.next().await { let frame = frame_result.map_err(MessageReaderError::ReceiveError)?; - let msg: Message

= bincode_config() - .deserialize(&frame) + let msg: Message

= deserialize_network_message(&frame) .map_err(MessageReaderError::DeserializationError)?; trace!(%msg, "message received"); From c3681075d76c55ad4f4fe27ab73c1dcd1b840b5a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:41:00 +0100 Subject: [PATCH 255/735] Add `unbounded_channels` local utility function --- node/src/components/small_network.rs | 20 +++++++++++++++++++ node/src/components/small_network/tests.rs | 23 ++++++++++++++++++++-- 2 files changed, 41 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 4355d2a20f..3a81c92369 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -1241,6 +1241,26 @@ impl From<&SmallNetworkIdentity> for NodeId { } } +/// Setup a fixed amount of senders/receivers. +fn unbounded_channels() -> ([UnboundedSender; N], [UnboundedReceiver; N]) { + // TODO: Improve this somehow to avoid the extra allocation required (turning a + // `Vec` into a fixed size array). + let mut senders_vec = Vec::with_capacity(Channel::COUNT); + + let receivers: [_; N] = array_init(|_| { + let (sender, receiver) = mpsc::unbounded_channel(); + senders_vec.push(sender); + + receiver + }); + + let senders: [_; N] = senders_vec + .try_into() + .expect("constant size array conversion failed"); + + (senders, receivers) +} + /// Transport type for base encrypted connections. type Transport = SslStream; diff --git a/node/src/components/small_network/tests.rs b/node/src/components/small_network/tests.rs index e890775e23..9c262f1c13 100644 --- a/node/src/components/small_network/tests.rs +++ b/node/src/components/small_network/tests.rs @@ -10,14 +10,15 @@ use std::{ }; use derive_more::From; +use futures::FutureExt; use prometheus::Registry; use reactor::ReactorEvent; use serde::{Deserialize, Serialize}; use tracing::{debug, info}; use super::{ - chain_info::ChainInfo, Config, Event as SmallNetworkEvent, FromIncoming, GossipedAddress, - MessageKind, Payload, SmallNetwork, + chain_info::ChainInfo, unbounded_channels, Config, Event as SmallNetworkEvent, FromIncoming, + GossipedAddress, MessageKind, Payload, SmallNetwork, }; use crate::{ components::{ @@ -519,3 +520,21 @@ async fn ensure_peers_metric_is_correct() { net.finalize().await; } } + +#[test] +fn unbounded_channels_wires_up_correctly() { + let (senders, mut receivers) = unbounded_channels::(); + + assert_eq!(senders.len(), 3); + + senders[0].send('A').unwrap(); + senders[0].send('a').unwrap(); + senders[1].send('B').unwrap(); + senders[2].send('C').unwrap(); + + assert_eq!(receivers[0].recv().now_or_never().unwrap().unwrap(), 'A'); + assert_eq!(receivers[0].recv().now_or_never().unwrap().unwrap(), 'a'); + assert_eq!(receivers[1].recv().now_or_never().unwrap().unwrap(), 'B'); + assert_eq!(receivers[2].recv().now_or_never().unwrap().unwrap(), 'C'); + assert!(receivers[0].recv().now_or_never().is_none()); +} From f32177272f014e5692d41510d1e6cf0ca5290f90 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:50:57 +0100 Subject: [PATCH 256/735] Remove obsolete `shared_object` module --- node/src/types.rs | 1 - node/src/types/shared_object.rs | 170 -------------------------------- 2 files changed, 171 deletions(-) delete mode 100644 node/src/types/shared_object.rs diff --git a/node/src/types.rs b/node/src/types.rs index fb2190835e..254f5b3bf7 100644 --- a/node/src/types.rs +++ b/node/src/types.rs @@ -13,7 +13,6 @@ mod node_config; mod node_id; /// Peers map. pub mod peers_map; -mod shared_object; mod status_feed; use rand::{CryptoRng, RngCore}; diff --git a/node/src/types/shared_object.rs b/node/src/types/shared_object.rs deleted file mode 100644 index 9bd9402a71..0000000000 --- a/node/src/types/shared_object.rs +++ /dev/null @@ -1,170 +0,0 @@ -//! Support for memory shared objects with behavior that can be switched at runtime. - -use std::{fmt::Display, ops::Deref, sync::Arc}; - -use datasize::DataSize; -use serde::{Deserialize, Serialize}; - -/// An in-memory object that can possibly be shared with other parts of the system. -/// -/// In general, this should only be used for immutable, content-addressed objects. -/// -/// This type exists solely to switch between `Box` and `Arc` based behavior, future updates should -/// deprecate this in favor of using `Arc`s directly or turning `SharedObject` into a newtype. -#[derive(Clone, DataSize, Debug, Eq, Ord, PartialEq, PartialOrd)] -pub enum SharedObject { - /// An owned copy of the object. - Owned(Box), - /// A shared copy of the object. - Shared(Arc), -} - -impl Deref for SharedObject { - type Target = T; - - #[inline] - fn deref(&self) -> &Self::Target { - match self { - SharedObject::Owned(obj) => obj, - SharedObject::Shared(shared) => shared, - } - } -} - -impl AsRef<[u8]> for SharedObject -where - T: AsRef<[u8]>, -{ - fn as_ref(&self) -> &[u8] { - match self { - SharedObject::Owned(obj) => >::as_ref(obj), - SharedObject::Shared(shared) => >::as_ref(shared), - } - } -} - -impl SharedObject { - /// Creates a new owned instance of the object. - #[inline] - pub(crate) fn owned(inner: T) -> Self { - SharedObject::Owned(Box::new(inner)) - } - - /// Creates a new shared instance of the object. - #[allow(unused)] // TODO[RC]: Used only in the mem deduplication feature (via ` fn - // handle_deduplicated_legacy_direct_deploy_request(deploy_hash)`), which is not merged from - // `dev` to `feat-fast-sync` (?) - pub(crate) fn shared(inner: Arc) -> Self { - SharedObject::Shared(inner) - } -} - -impl Display for SharedObject -where - T: Display, -{ - #[inline] - fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - match self { - SharedObject::Owned(inner) => inner.fmt(f), - SharedObject::Shared(inner) => inner.fmt(f), - } - } -} - -impl Serialize for SharedObject -where - T: Serialize, -{ - #[inline] - fn serialize(&self, serializer: S) -> Result - where - S: serde::Serializer, - { - match self { - SharedObject::Owned(inner) => inner.serialize(serializer), - SharedObject::Shared(shared) => shared.serialize(serializer), - } - } -} - -impl<'de, T> Deserialize<'de> for SharedObject -where - T: Deserialize<'de>, -{ - #[inline] - fn deserialize(deserializer: D) -> Result - where - D: serde::Deserializer<'de>, - { - T::deserialize(deserializer).map(SharedObject::owned) - } -} - -#[cfg(test)] -mod tests { - use std::{pin::Pin, sync::Arc}; - - use bytes::BytesMut; - use serde::{Deserialize, Serialize}; - use tokio_serde::{Deserializer, Serializer}; - - use crate::{ - components::small_network::{BincodeFormat, Message}, - types::Deploy, - }; - - use super::SharedObject; - - impl SharedObject - where - T: Clone, - { - pub(crate) fn into_inner(self) -> T { - match self { - SharedObject::Owned(inner) => *inner, - SharedObject::Shared(shared) => (*shared).clone(), - } - } - } - - fn serialize(value: &T) -> Vec { - let msg = Arc::new(Message::Payload(value)); - Pin::new(&mut BincodeFormat::default()) - .serialize(&msg) - .expect("could not serialize value") - .to_vec() - } - - fn deserialize Deserialize<'de>>(raw: &[u8]) -> T { - let msg = Pin::new(&mut BincodeFormat::default()) - .deserialize(&BytesMut::from(raw)) - .expect("could not deserialize value"); - match msg { - Message::Payload(payload) => payload, - Message::Handshake { .. } => panic!("expected payload"), - } - } - - #[test] - fn loaded_item_for_bytes_deserializes_like_bytevec() { - // Construct an example payload that is reasonably realistic. - let mut rng = crate::new_rng(); - let deploy = Deploy::random(&mut rng); - let payload = bincode::serialize(&deploy).expect("could not serialize deploy"); - - // Realistic payload inside a `GetRequest`. - let loaded_item_owned = SharedObject::owned(payload.clone()); - let loaded_item_shared = SharedObject::shared(Arc::new(payload.clone())); - - // Check all serialize the same. - let serialized = serialize(&payload); - assert_eq!(serialized, serialize(&loaded_item_owned)); - assert_eq!(serialized, serialize(&loaded_item_shared)); - - // Ensure we can deserialize a loaded item payload. - let deserialized: SharedObject> = deserialize(&serialized); - - assert_eq!(payload, deserialized.into_inner()); - } -} From 328314fc0cc7bf211d75f80b9baa0fe298e48bcb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:53:02 +0100 Subject: [PATCH 257/735] Remove obsolete `bincode_format` module from networking --- node/src/components/small_network.rs | 1 - .../small_network/bincode_format.rs | 82 ------------------- 2 files changed, 83 deletions(-) delete mode 100644 node/src/components/small_network/bincode_format.rs diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 3a81c92369..ca1594d62f 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -23,7 +23,6 @@ //! Nodes gossip their public listening addresses periodically, and will try to establish and //! maintain an outgoing connection to any new address learned. -mod bincode_format; pub(crate) mod blocklist; mod chain_info; mod config; diff --git a/node/src/components/small_network/bincode_format.rs b/node/src/components/small_network/bincode_format.rs deleted file mode 100644 index aa607917fb..0000000000 --- a/node/src/components/small_network/bincode_format.rs +++ /dev/null @@ -1,82 +0,0 @@ -//! Bincode wire format encoder. -//! -//! An encoder for `Bincode` messages with our specific settings pinned. - -use std::{fmt::Debug, io, pin::Pin, sync::Arc}; - -use bincode::{ - config::{ - RejectTrailing, VarintEncoding, WithOtherEndian, WithOtherIntEncoding, WithOtherLimit, - WithOtherTrailing, - }, - Options, -}; -use bytes::{Bytes, BytesMut}; -use serde::{Deserialize, Serialize}; -use tokio_serde::{Deserializer, Serializer}; - -use super::Message; - -/// bincode encoder/decoder for messages. -#[allow(clippy::type_complexity)] -pub struct BincodeFormat( - // Note: `bincode` encodes its options at the type level. The exact shape is determined by - // `BincodeFormat::default()`. - pub(crate) WithOtherTrailing< - WithOtherIntEncoding< - WithOtherEndian< - WithOtherLimit, - bincode::config::LittleEndian, - >, - VarintEncoding, - >, - RejectTrailing, - >, -); - -impl Debug for BincodeFormat { - fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - f.write_str("BincodeFormat") - } -} - -impl Default for BincodeFormat { - fn default() -> Self { - let opts = bincode::options() - .with_no_limit() // We rely on framed tokio transports to impose limits. - .with_little_endian() // Default at the time of this writing, we are merely pinning it. - .with_varint_encoding() // Same as above. - .reject_trailing_bytes(); // There is no reason for us not to reject trailing bytes. - BincodeFormat(opts) - } -} - -impl

Serializer>> for BincodeFormat -where - Message

: Serialize, -{ - type Error = io::Error; - - #[inline] - fn serialize(self: Pin<&mut Self>, item: &Arc>) -> Result { - let msg = &**item; - self.0 - .serialize(msg) - .map(Into::into) - .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err)) - } -} - -impl

Deserializer> for BincodeFormat -where - for<'de> Message

: Deserialize<'de>, -{ - type Error = io::Error; - - #[inline] - fn deserialize(self: Pin<&mut Self>, src: &BytesMut) -> Result, Self::Error> { - self.0 - .deserialize(src) - .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err)) - } -} From a82a1a7cb333693ebaaef29a8a87529dddcb0d88 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:55:48 +0100 Subject: [PATCH 258/735] Improve `Channel` by adding sanity tests and utility functions --- node/src/components/small_network/message.rs | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index cdd7651b2c..3d1bbe6c64 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -95,6 +95,14 @@ impl Message

{ } } } + + /// Determine which channel this message should be sent on. + pub(super) fn get_channel(&self) -> Channel { + match self { + Message::Handshake { .. } => Channel::Network, + Message::Payload(payload) => payload.get_channel(), + } + } } /// A pair of secret keys used by consensus. @@ -762,4 +770,11 @@ mod tests { fn bincode_roundtrip_certificate() { roundtrip_certificate(false) } + + #[test] + fn channels_enum_does_not_have_holes() { + for idx in 0..Channel::COUNT { + let _ = Channel::from_repr(idx as u8).expect("must not have holes in channel enum"); + } + } } From 981dc68431f0c86268508769319e79932d671ee8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 18:56:34 +0100 Subject: [PATCH 259/735] Change network message sending implementation to use new encoded multi channel setup --- node/src/components/small_network.rs | 86 +++++++++++------ node/src/components/small_network/insights.rs | 4 +- node/src/components/small_network/tasks.rs | 94 +++++-------------- 3 files changed, 83 insertions(+), 101 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index ca1594d62f..7de8061f30 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -43,15 +43,16 @@ mod tests; use std::{ collections::{BTreeMap, HashMap, HashSet}, - convert::Infallible, + convert::{Infallible, TryInto}, fmt::{self, Debug, Display, Formatter}, fs::OpenOptions, + marker::PhantomData, net::{SocketAddr, TcpListener}, - num::NonZeroUsize, sync::{Arc, Mutex}, time::{Duration, Instant}, }; +use array_init::array_init; use bincode::Options; use bytes::Bytes; use datasize::DataSize; @@ -67,11 +68,12 @@ use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; use prometheus::Registry; use rand::{prelude::SliceRandom, seq::IteratorRandom}; +use strum::EnumCount; use thiserror::Error; use tokio::{ net::TcpStream, sync::{ - mpsc::{self, UnboundedSender}, + mpsc::{self, UnboundedReceiver, UnboundedSender}, watch, }, task::JoinHandle, @@ -93,7 +95,7 @@ use self::{ metrics::Metrics, outgoing::{DialOutcome, DialRequest, OutgoingConfig, OutgoingManager}, symmetry::ConnectionSymmetry, - tasks::{MessageQueueItem, NetworkContext}, + tasks::{EncodedMessage, NetworkContext}, }; pub(crate) use self::{ config::Config, @@ -117,7 +119,7 @@ use crate::{ ValidationError, }, types::NodeId, - utils::{self, display_error, LockedLineWriter, Source, WithDir}, + utils::{self, display_error, LockedLineWriter, Source, StickyFlag, TokenizedCount, WithDir}, NodeRng, }; @@ -140,13 +142,13 @@ const OUTGOING_MANAGER_SWEEP_INTERVAL: Duration = Duration::from_secs(1); const MESSAGE_FRAGMENT_SIZE: usize = 4096; #[derive(Clone, DataSize, Debug)] -pub(crate) struct OutgoingHandle

{ +pub(crate) struct OutgoingHandle { #[data_size(skip)] // Unfortunately, there is no way to inspect an `UnboundedSender`. - sender: UnboundedSender>, + senders: [UnboundedSender; Channel::COUNT], peer_addr: SocketAddr, } -impl

Display for OutgoingHandle

{ +impl Display for OutgoingHandle { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { write!(f, "outgoing handle to {}", self.peer_addr) } @@ -164,7 +166,7 @@ where context: Arc>, /// Outgoing connections manager. - outgoing_manager: OutgoingManager, ConnectionError>, + outgoing_manager: OutgoingManager, /// Tracks whether a connection is symmetric or not. connection_symmetries: HashMap, @@ -204,6 +206,9 @@ where /// The era that is considered the active era by the small network component. active_era: EraId, + + /// Marker for what kind of payload this small network instance supports. + _payload: PhantomData

, } impl SmallNetwork @@ -399,6 +404,7 @@ where incoming_limiter, // We start with an empty set of validators for era 0 and expect to be updated. active_era: EraId::new(0), + _payload: PhantomData, }; let effect_builder = EffectBuilder::new(event_queue); @@ -479,15 +485,38 @@ where ) { // Try to send the message. if let Some(connection) = self.outgoing_manager.get_route(dest) { - if let Err(msg) = connection.sender.send((msg, opt_responder)) { - // We lost the connection, but that fact has not reached us yet. - warn!(our_id=%self.context.our_id, %dest, ?msg, "dropped outgoing message, lost connection"); + let channel = msg.get_channel(); + let sender = &connection.senders[channel as usize]; + let payload = if let Some(payload) = serialize_network_message(&msg) { + payload } else { - self.net_metrics.queued_messages.inc(); + // The `AutoClosingResponder` will respond by itself. + return; + }; + + let send_token = TokenizedCount::new(self.net_metrics.queued_messages.clone()); + + if let Err(refused_message) = + sender.send(EncodedMessage::new(payload, opt_responder, send_token)) + { + match deserialize_network_message::

(refused_message.0.payload()) { + Ok(reconstructed_message) => { + // We lost the connection, but that fact has not reached us as an event yet. + debug!(our_id=%self.context.our_id, %dest, msg=%reconstructed_message, "dropped outgoing message, lost connection"); + } + Err(err) => { + error!(our_id=%self.context.our_id, + %dest, + reconstruction_error=%err, + payload=?refused_message.0.payload(), + "dropped outgoing message, but also failed to reconstruct it" + ); + } + } } } else { // We are not connected, so the reconnection is likely already in progress. - debug!(our_id=%self.context.our_id, %dest, ?msg, "dropped outgoing message, no connection"); + debug!(our_id=%self.context.our_id, %dest, %msg, "dropped outgoing message, no connection"); } } @@ -761,8 +790,9 @@ where } => { info!("new outgoing connection established"); - let (sender, receiver) = mpsc::unbounded_channel(); - let handle = OutgoingHandle { sender, peer_addr }; + let (senders, receivers) = unbounded_channels::<_, { Channel::COUNT }>(); + + let handle = OutgoingHandle { senders, peer_addr }; let request = self .outgoing_manager @@ -791,20 +821,18 @@ where let carrier: OutgoingCarrier = Multiplexer::new(FrameWriter::new(LengthDelimited, compat_transport)); - // TOOD: Replace with `NonZeroUsize::new(_).unwrap()` in const once stabilized. - let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); - - // Now we can setup a channel (TODO: Setup multiple channels instead). - let mux_123 = carrier.create_channel_handle(123); - let channel_123: OutgoingChannel = Fragmentizer::new(fragment_size, mux_123); + // TODO: Move to top / component state (unify with other stopping signals). + let global_stop = StickyFlag::new(); effects.extend( - tasks::message_sender( - receiver, - channel_123, - self.outgoing_limiter - .create_handle(peer_id, peer_consensus_public_key), - self.net_metrics.queued_messages.clone(), + tasks::encoded_message_sender( + receivers, + carrier, + Arc::from( + self.outgoing_limiter + .create_handle(peer_id, peer_consensus_public_key), + ), + global_stop, ) .instrument(span) .event(move |_| Event::OutgoingDropped { @@ -838,7 +866,7 @@ where /// Processes a set of `DialRequest`s, updating the component and emitting needed effects. fn process_dial_requests(&mut self, requests: T) -> Effects> where - T: IntoIterator>>, + T: IntoIterator>, { let mut effects = Effects::new(); diff --git a/node/src/components/small_network/insights.rs b/node/src/components/small_network/insights.rs index 0589e26031..1d267a30a2 100644 --- a/node/src/components/small_network/insights.rs +++ b/node/src/components/small_network/insights.rs @@ -93,9 +93,9 @@ fn time_delta(now: SystemTime, then: SystemTime) -> impl Display { impl OutgoingStateInsight { /// Constructs a new outgoing state insight from a given outgoing state. - fn from_outgoing_state

( + fn from_outgoing_state( anchor: &TimeAnchor, - state: &OutgoingState, ConnectionError>, + state: &OutgoingState, ) -> Self { match state { OutgoingState::Connecting { diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 3afaf74fc8..4af2bf7bda 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -22,7 +22,6 @@ use openssl::{ ssl::Ssl, x509::X509, }; -use prometheus::IntGauge; use serde::de::DeserializeOwned; use strum::{EnumCount, IntoEnumIterator}; use tokio::{ @@ -31,7 +30,7 @@ use tokio::{ }; use tokio_openssl::SslStream; use tracing::{ - debug, error, error_span, + debug, error_span, field::{self, Empty}, info, trace, warn, Instrument, Span, }; @@ -46,8 +45,8 @@ use super::{ handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - BincodeFormat, Channel, EstimatorWeights, Event, FromIncoming, IncomingChannel, Message, - Metrics, OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, + Channel, EstimatorWeights, Event, FromIncoming, IncomingChannel, Message, Metrics, + OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, MESSAGE_FRAGMENT_SIZE, }; @@ -60,13 +59,8 @@ use crate::{ utils::{display_error, LockedLineWriter, StickyFlag, TokenizedCount}, }; -/// An item on the internal outgoing message queue. -/// -/// Contains a reference counted message and an optional responder to call once the message has been -/// successfully handed over to the kernel for sending. -pub(super) type MessageQueueItem

= (Arc>, Option>); - /// An encoded network message, ready to be sent out. +#[derive(Debug)] pub(super) struct EncodedMessage { /// The encoded payload of the outgoing message. payload: Bytes, @@ -78,6 +72,26 @@ pub(super) struct EncodedMessage { send_token: TokenizedCount, } +impl EncodedMessage { + /// Creates a new encoded message. + pub(super) fn new( + payload: Bytes, + send_finished: Option>, + send_token: TokenizedCount, + ) -> Self { + Self { + payload, + send_finished, + send_token, + } + } + + /// Get the encoded message's payload. + pub(super) fn payload(&self) -> &Bytes { + &self.payload + } +} + /// Low-level TLS connection function. /// /// Performs the actual TCP+TLS connection setup. @@ -523,66 +537,6 @@ where Ok(()) } -/// Network message sender. -/// -/// Reads from a channel and sends all messages, until the stream is closed or an error occurs. -pub(super) async fn message_sender

( - mut queue: UnboundedReceiver>, - mut sink: OutgoingChannel, - limiter: Box, - counter: IntGauge, -) where - P: Payload, -{ - while let Some((message, opt_responder)) = queue.recv().await { - counter.dec(); - - let estimated_wire_size = match BincodeFormat::default().0.serialized_size(&*message) { - Ok(size) => size as u32, - Err(error) => { - error!( - error = display_error(&error), - "failed to get serialized size of outgoing message, closing outgoing connection" - ); - break; - } - }; - limiter.request_allowance(estimated_wire_size).await; - - let serialized = match bincode_config().serialize(&message) { - Ok(vec) => Bytes::from(vec), - Err(err) => { - error!(%err, "failed to serialize an outoging message"); - return; - } - }; - let mut outcome = sink.send(serialized).await; - - // Notify via responder that the message has been buffered by the kernel. - if let Some(auto_closing_responder) = opt_responder { - // Since someone is interested in the message, flush the socket to ensure it was sent. - outcome = outcome.and(sink.flush().await); - auto_closing_responder.respond(()).await; - } - - // We simply error-out if the sink fails, it means that our connection broke. - if let Err(ref err) = outcome { - info!( - err = display_error(err), - "message send failed, closing outgoing connection" - ); - - // To ensure, metrics are up to date, we close the queue and drain it. - queue.close(); - while queue.recv().await.is_some() { - counter.dec(); - } - - break; - }; - } -} - /// Multi-channel encoded message sender. /// /// This tasks starts multiple message senders, each handling a single outgoing channel on the given From ca95e2ad61726347bcd5ffaefa8d0cc9c5cb7d96 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 18 Nov 2022 19:07:03 +0100 Subject: [PATCH 260/735] Remove unnecessary `global_stop` support --- node/src/components/small_network.rs | 6 +--- node/src/components/small_network/tasks.rs | 37 +++++++--------------- 2 files changed, 12 insertions(+), 31 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 7de8061f30..eeff16d7a7 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -119,7 +119,7 @@ use crate::{ ValidationError, }, types::NodeId, - utils::{self, display_error, LockedLineWriter, Source, StickyFlag, TokenizedCount, WithDir}, + utils::{self, display_error, LockedLineWriter, Source, TokenizedCount, WithDir}, NodeRng, }; @@ -821,9 +821,6 @@ where let carrier: OutgoingCarrier = Multiplexer::new(FrameWriter::new(LengthDelimited, compat_transport)); - // TODO: Move to top / component state (unify with other stopping signals). - let global_stop = StickyFlag::new(); - effects.extend( tasks::encoded_message_sender( receivers, @@ -832,7 +829,6 @@ where self.outgoing_limiter .create_handle(peer_id, peer_consensus_public_key), ), - global_stop, ) .instrument(span) .event(move |_| Event::OutgoingDropped { diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 4af2bf7bda..e3bbe83e31 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -551,7 +551,6 @@ pub(super) async fn encoded_message_sender( queues: [UnboundedReceiver; Channel::COUNT], carrier: OutgoingCarrier, limiter: Arc, - global_stop: StickyFlag, ) -> Result<(), OutgoingCarrierError> { // TODO: Once the necessary methods are stabilized, setup const fns to initialize `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); @@ -573,35 +572,21 @@ pub(super) async fn encoded_message_sender( // We track only the first result we receive from a sender, as subsequent errors may just be // caused by the first one shutting down and are not the root cause. let mut first_result = None; - loop { - let global_stop_wait = global_stop.wait(); - pin_mut!(global_stop_wait); - match future::select(boiler_room.next(), global_stop_wait).await { - Either::Left((None, _)) => { - // There are no more running senders left, so we can finish. - debug!("all senders finished"); - - return first_result.unwrap_or(Ok(())); - } - Either::Left((Some(sender_outcome), _)) => { - debug!(outcome=?sender_outcome, "sender stopped"); - if first_result.is_none() { - first_result = Some(sender_outcome); - } + while let Some(sender_outcome) = boiler_room.next().await { + debug!(outcome=?sender_outcome, "sender stopped"); - // Signal all other senders stop as well. - local_stop.set(); - } - Either::Right((_, _)) => { - debug!("global shutdown"); - - // The component is shutting down, tell all existing data shovelers to put down - // their shovels and call it a day. - local_stop.set(); - } + if first_result.is_none() { + first_result = Some(sender_outcome); } + + // Signal all other senders stop as well. + local_stop.set(); } + + // There are no more running senders left, so we can finish. + debug!("all senders finished"); + first_result.unwrap_or(Ok(())) } /// Receives network messages from an async channel, encodes and forwards it into a suitable sink. From 31dd7c0323a6685e38d6d1bf2e94ea5d9fefe896 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 20 Nov 2022 23:29:21 +0100 Subject: [PATCH 261/735] Derive `Display` for `Channel` --- node/src/components/small_network/message.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 3d1bbe6c64..645b27c465 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -14,7 +14,7 @@ use serde::{ de::{DeserializeOwned, Error as SerdeError}, Deserialize, Deserializer, Serialize, Serializer, }; -use strum::{EnumCount, EnumIter, FromRepr}; +use strum::{Display, EnumCount, EnumIter, FromRepr}; use crate::{effect::EffectBuilder, types::NodeId, utils::opt_display::OptDisplay}; @@ -330,7 +330,9 @@ impl Display for MessageKind { /// /// Further separation is done to improve quality of service of certain subsystems, e.g. to /// guarantee that consensus is not impaired by the transfer of large trie nodes. -#[derive(Copy, Clone, Debug, Eq, EnumCount, EnumIter, FromRepr, PartialEq, Ord, PartialOrd)] +#[derive( + Copy, Clone, Debug, Display, Eq, EnumCount, EnumIter, FromRepr, PartialEq, Ord, PartialOrd, +)] #[repr(u8)] pub(crate) enum Channel { /// Networking layer messages, e.g. address gossip. From eb1c26b694d3679acac73520ed15115c411bf881 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 20 Nov 2022 23:33:38 +0100 Subject: [PATCH 262/735] Added a new message receiver --- node/src/components/small_network/error.rs | 10 ++ node/src/components/small_network/tasks.rs | 119 +++++++++++++++++++-- 2 files changed, 123 insertions(+), 6 deletions(-) diff --git a/node/src/components/small_network/error.rs b/node/src/components/small_network/error.rs index 655baace9d..c2188b4582 100644 --- a/node/src/components/small_network/error.rs +++ b/node/src/components/small_network/error.rs @@ -13,6 +13,8 @@ use crate::{ utils::{LoadError, Loadable, ResolveAddressError}, }; +use super::Channel; + /// Error type returned by the `SmallNetwork` component. #[derive(Debug, Error, Serialize)] pub enum Error { @@ -237,4 +239,12 @@ pub enum MessageReaderError { /// Error deserializing message. #[error("message deserialization error")] DeserializationError(bincode::Error), + /// Wrong channel for received message. + #[error("received a {got} message on channel {expected}")] + WrongChannel { + /// The channel the message was actually received on. + got: Channel, + /// The channel on which the message should have been sent. + expected: Channel, + }, } diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index e3bbe83e31..57b346ed58 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -5,7 +5,7 @@ use std::{ net::SocketAddr, num::NonZeroUsize, pin::Pin, - sync::{Arc, Weak}, + sync::{Arc, Mutex, Weak}, }; use bytes::Bytes; @@ -13,10 +13,13 @@ use futures::{ future::{self, Either}, pin_mut, stream::FuturesUnordered, - Sink, SinkExt, StreamExt, + Sink, SinkExt, Stream, StreamExt, }; -use muxink::fragmented::Fragmentizer; +use muxink::{ + demux::Demultiplexer, + fragmented::{Defragmentizer, Fragmentizer}, +}; use openssl::{ pkey::{PKey, Private}, ssl::Ssl, @@ -30,7 +33,7 @@ use tokio::{ }; use tokio_openssl::SslStream; use tracing::{ - debug, error_span, + debug, error, error_span, field::{self, Empty}, info, trace, warn, Instrument, Span, }; @@ -45,8 +48,8 @@ use super::{ handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - Channel, EstimatorWeights, Event, FromIncoming, IncomingChannel, Message, Metrics, - OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, + Channel, EstimatorWeights, Event, FromIncoming, IncomingCarrier, IncomingChannel, Message, + Metrics, OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, MESSAGE_FRAGMENT_SIZE, }; @@ -537,6 +540,110 @@ where Ok(()) } +/// Multi-channel message receiver. +pub(super) async fn new_message_receiver( + context: Arc>, + carrier: IncomingCarrier, + limiter: Box, + mut close_incoming_receiver: watch::Receiver<()>, + peer_id: NodeId, + span: Span, +) -> Result<(), MessageReaderError> +where + P: DeserializeOwned + Send + Display + Payload, + REv: From> + FromIncoming

+ From> + Send, +{ + // Sets up all channels on top of the carrier. + let carrier = Arc::new(Mutex::new(carrier)); + + async fn read_next( + mut incoming: IncomingChannel, + channel: Channel, + ) -> ( + IncomingChannel, + Channel, + Option<::Item>, + ) { + let rv = incoming.next().await; + (incoming, channel, rv) + } + + let mut readers = FuturesUnordered::new(); + for channel in Channel::iter() { + let demuxer = + Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), channel as u8) + .expect("mutex poisoned"); + let incoming = Defragmentizer::new( + context.chain_info.maximum_net_message_size as usize, + demuxer, + ); + + readers.push(read_next(incoming, channel)); + } + + while let Some((incoming, channel, rv)) = readers.next().await { + match rv { + None => { + // All good. One incoming channel closed, so we just exit, dropping all the others. + return Ok(()); + } + Some(Err(err)) => { + // An incoming channel failed, so exit with the error. + return Err(MessageReaderError::ReceiveError(err)); + } + Some(Ok(frame)) => { + let msg: Message

= deserialize_network_message(&frame) + .map_err(MessageReaderError::DeserializationError)?; + trace!(%msg, "message received"); + + // TODO: Re-add support for demands when backpressure is added. + + // The limiter stops _all_ channels, as they share a resource pool anyway. + limiter + .request_allowance( + msg.payload_incoming_resource_estimate(&context.payload_weights), + ) + .await; + + // Ensure the peer did not try to sneak in a message on a different channel. + let msg_channel = msg.get_channel(); + if msg_channel != channel { + return Err(MessageReaderError::WrongChannel { + got: msg_channel, + expected: channel, + }); + } + + let queue_kind = if msg.is_low_priority() { + QueueKind::NetworkLowPriority + } else { + QueueKind::NetworkIncoming + }; + + context + .event_queue + .schedule( + Event::IncomingMessage { + peer_id: Box::new(peer_id), + msg: Box::new(msg), + span: span.clone(), + }, + queue_kind, + ) + .await; + + // Recreata a future receiving on this particular channel. + readers.push(read_next(incoming, channel)); + } + } + } + + // We ran out of channels to read. Should not happen if there's at least one channel defined. + error!("did not expect to run out of channels to read"); + + Ok(()) +} + /// Multi-channel encoded message sender. /// /// This tasks starts multiple message senders, each handling a single outgoing channel on the given From f5a7bf20ed67451b57f619dd5ae48cefd0194f7d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 09:34:25 +0100 Subject: [PATCH 263/735] Make new reader task respect cancellation flags --- node/src/components/small_network/message.rs | 2 +- node/src/components/small_network/tasks.rs | 51 +++++++++++++++++--- 2 files changed, 45 insertions(+), 8 deletions(-) diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 645b27c465..141a1b9dab 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -334,7 +334,7 @@ impl Display for MessageKind { Copy, Clone, Debug, Display, Eq, EnumCount, EnumIter, FromRepr, PartialEq, Ord, PartialOrd, )] #[repr(u8)] -pub(crate) enum Channel { +pub enum Channel { /// Networking layer messages, e.g. address gossip. Network = 1, /// Data solely used for syncing being requested. diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 57b346ed58..02822e9460 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -545,7 +545,7 @@ pub(super) async fn new_message_receiver( context: Arc>, carrier: IncomingCarrier, limiter: Box, - mut close_incoming_receiver: watch::Receiver<()>, + close_incoming: StickyFlag, peer_id: NodeId, span: Span, ) -> Result<(), MessageReaderError> @@ -556,6 +556,7 @@ where // Sets up all channels on top of the carrier. let carrier = Arc::new(Mutex::new(carrier)); + // TODO: Replace with select_all! async fn read_next( mut incoming: IncomingChannel, channel: Channel, @@ -581,8 +582,48 @@ where readers.push(read_next(incoming, channel)); } - while let Some((incoming, channel, rv)) = readers.next().await { - match rv { + // TODO: Move to utils and use elsewhere. + trait Discard { + type Remains; + fn discard(self) -> Self::Remains; + } + + impl Discard for Either<(A, G), (B, F)> { + type Remains = Either; + + fn discard(self) -> Self::Remains { + match self { + Either::Left((v, _)) => Either::Left(v), + Either::Right((v, _)) => Either::Right(v), + } + } + } + + loop { + let next_reader = readers.next(); + let wait_for_close_incoming = close_incoming.wait(); + pin_mut!(next_reader); + pin_mut!(wait_for_close_incoming); + + let (incoming, channel, outcome) = + match future::select(next_reader, wait_for_close_incoming) + .await + .discard() + { + Either::Left(Some(item)) => item, + Either::Left(None) => { + // We ran out of channels. Should not happen with at least one channel defined. + error!("did not expect to run out of channels to read"); + + return Ok(()); + } + Either::Right(_) => { + debug!("message reader shutdown requested"); + return Ok(()); + } + }; + + match outcome { None => { // All good. One incoming channel closed, so we just exit, dropping all the others. return Ok(()); @@ -638,10 +679,6 @@ where } } - // We ran out of channels to read. Should not happen if there's at least one channel defined. - error!("did not expect to run out of channels to read"); - - Ok(()) } /// Multi-channel encoded message sender. From bf63cd7b3b868bc6f5f80dd60b9a50ecc10a7f88 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 09:56:39 +0100 Subject: [PATCH 264/735] Factor out sticky/shared flag, now known as fuses, into their own `utils` module --- node/src/components/small_network/tasks.rs | 8 +- node/src/effect.rs | 8 +- node/src/reactor.rs | 16 +- node/src/utils.rs | 146 +--------------- node/src/utils/fuse.rs | 183 +++++++++++++++++++++ 5 files changed, 204 insertions(+), 157 deletions(-) create mode 100644 node/src/utils/fuse.rs diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 02822e9460..6dcec173f7 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -59,7 +59,7 @@ use crate::{ reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::{display_error, LockedLineWriter, StickyFlag, TokenizedCount}, + utils::{display_error, LockedLineWriter, ObservableFuse, TokenizedCount}, }; /// An encoded network message, ready to be sent out. @@ -545,7 +545,7 @@ pub(super) async fn new_message_receiver( context: Arc>, carrier: IncomingCarrier, limiter: Box, - close_incoming: StickyFlag, + close_incoming: ObservableFuse, peer_id: NodeId, span: Span, ) -> Result<(), MessageReaderError> @@ -698,7 +698,7 @@ pub(super) async fn encoded_message_sender( ) -> Result<(), OutgoingCarrierError> { // TODO: Once the necessary methods are stabilized, setup const fns to initialize `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); - let local_stop: StickyFlag = StickyFlag::new(); + let local_stop: ObservableFuse = ObservableFuse::new(); let mut boiler_room = FuturesUnordered::new(); @@ -739,7 +739,7 @@ pub(super) async fn encoded_message_sender( async fn shovel_data( mut source: UnboundedReceiver, mut dest: S, - stop: StickyFlag, + stop: ObservableFuse, limiter: Arc, ) -> Result<(), >::Error> where diff --git a/node/src/effect.rs b/node/src/effect.rs index d7b955af98..5a90bec528 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -151,7 +151,7 @@ use crate::{ DeployHash, DeployHeader, DeployMetadataExt, DeployWithFinalizedApprovals, FinalitySignature, FinalizedApprovals, FinalizedBlock, Item, NodeId, NodeState, }, - utils::{fmt_limit::FmtLimit, SharedFlag, Source}, + utils::{fmt_limit::FmtLimit, SharedFuse, Source}, }; use announcements::{ BlockProposerAnnouncement, BlocklistAnnouncement, ChainspecLoaderAnnouncement, @@ -191,7 +191,7 @@ pub(crate) struct Responder { /// Sender through which the response ultimately should be sent. sender: Option>, /// Reactor flag indicating shutdown. - is_shutting_down: SharedFlag, + is_shutting_down: SharedFuse, } /// A responder that will automatically send a `None` on drop. @@ -251,7 +251,7 @@ impl Drop for AutoClosingResponder { impl Responder { /// Creates a new `Responder`. #[inline] - fn new(sender: oneshot::Sender, is_shutting_down: SharedFlag) -> Self { + fn new(sender: oneshot::Sender, is_shutting_down: SharedFuse) -> Self { Responder { sender: Some(sender), is_shutting_down, @@ -265,7 +265,7 @@ impl Responder { #[cfg(test)] #[inline] pub(crate) fn without_shutdown(sender: oneshot::Sender) -> Self { - Responder::new(sender, SharedFlag::global_shared()) + Responder::new(sender, SharedFuse::global_shared()) } } diff --git a/node/src/reactor.rs b/node/src/reactor.rs index d7411e878d..3782313708 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -79,7 +79,7 @@ use crate::{ utils::{ self, rlimit::{Limit, OpenFiles, ResourceLimit}, - SharedFlag, Source, WeightedRoundRobin, + SharedFuse, Source, WeightedRoundRobin, }, NodeRng, TERMINATION_REQUESTED, }; @@ -183,7 +183,7 @@ where /// A reference to the scheduler of the event queue. scheduler: &'static Scheduler, /// Flag indicating whether or not the reactor processing this event queue is shutting down. - is_shutting_down: SharedFlag, + is_shutting_down: SharedFuse, } // Implement `Clone` and `Copy` manually, as `derive` will make it depend on `R` and `Ev` otherwise. @@ -199,7 +199,7 @@ impl Copy for EventQueueHandle {} impl EventQueueHandle { /// Creates a new event queue handle. - pub(crate) fn new(scheduler: &'static Scheduler, is_shutting_down: SharedFlag) -> Self { + pub(crate) fn new(scheduler: &'static Scheduler, is_shutting_down: SharedFuse) -> Self { EventQueueHandle { scheduler, is_shutting_down, @@ -211,7 +211,7 @@ impl EventQueueHandle { /// This method is used in tests, where we are never disabling shutdown warnings anyway. #[cfg(test)] pub(crate) fn without_shutdown(scheduler: &'static Scheduler) -> Self { - EventQueueHandle::new(scheduler, SharedFlag::global_shared()) + EventQueueHandle::new(scheduler, SharedFuse::global_shared()) } /// Schedule an event on a specific queue. @@ -244,7 +244,7 @@ impl EventQueueHandle { } /// Returns whether the associated reactor is currently shutting down. - pub(crate) fn shutdown_flag(&self) -> SharedFlag { + pub(crate) fn shutdown_flag(&self) -> SharedFuse { self.is_shutting_down } } @@ -377,7 +377,7 @@ where clock: Clock, /// Flag indicating the reactor is being shut down. - is_shutting_down: SharedFlag, + is_shutting_down: SharedFuse, } /// Metric data for the Runner @@ -495,7 +495,7 @@ where } let scheduler = utils::leak(Scheduler::new(QueueKind::weights())); - let is_shutting_down = SharedFlag::new(); + let is_shutting_down = SharedFuse::new(); let event_queue = EventQueueHandle::new(scheduler, is_shutting_down); let (reactor, initial_effects) = R::new(cfg, registry, event_queue, rng)?; @@ -837,7 +837,7 @@ impl Runner { let registry = Registry::new(); let scheduler = utils::leak(Scheduler::new(QueueKind::weights())); - let is_shutting_down = SharedFlag::new(); + let is_shutting_down = SharedFuse::new(); let event_queue = EventQueueHandle::new(scheduler, is_shutting_down); let (reactor, initial_effects) = InitializerReactor::new_with_chainspec( cfg, diff --git a/node/src/utils.rs b/node/src/utils.rs index 7133fc2a7d..9642f1c86b 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -5,6 +5,7 @@ mod display_error; pub(crate) mod ds; mod external; pub(crate) mod fmt_limit; +pub(crate) mod fuse; pub(crate) mod opt_display; pub(crate) mod rlimit; pub(crate) mod round_robin; @@ -20,22 +21,17 @@ use std::{ net::{SocketAddr, ToSocketAddrs}, ops::{Add, BitXorAssign, Div}, path::{Path, PathBuf}, - sync::{ - atomic::{AtomicBool, Ordering}, - Arc, Mutex, - }, + sync::{Arc, Mutex}, time::{Duration, Instant, SystemTime}, }; use datasize::DataSize; use fs2::FileExt; use hyper::server::{conn::AddrIncoming, Builder, Server}; -#[cfg(test)] -use once_cell::sync::Lazy; + use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; use serde::Serialize; use thiserror::Error; -use tokio::sync::Notify; use tracing::{error, warn}; pub(crate) use display_error::display_error; @@ -43,6 +39,7 @@ pub(crate) use external::External; #[cfg(test)] pub(crate) use external::RESOURCES_PATH; pub use external::{LoadError, Loadable}; +pub(crate) use fuse::{ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; pub(crate) use round_robin::WeightedRoundRobin; use crate::types::NodeId; @@ -157,98 +154,6 @@ pub(crate) fn leak(value: T) -> &'static T { Box::leak(Box::new(value)) } -/// A flag shared across multiple subsystems. -#[derive(Copy, Clone, DataSize, Debug)] -pub(crate) struct SharedFlag(&'static AtomicBool); - -impl SharedFlag { - /// Creates a new shared flag. - /// - /// The flag is initially not set. - pub(crate) fn new() -> Self { - SharedFlag(leak(AtomicBool::new(false))) - } - - /// Checks whether the flag is set. - pub(crate) fn is_set(self) -> bool { - self.0.load(Ordering::SeqCst) - } - - /// Set the flag. - pub(crate) fn set(self) { - self.0.store(true, Ordering::SeqCst) - } - - /// Returns a shared instance of the flag for testing. - /// - /// The returned flag should **never** have `set` be called upon it. - #[cfg(test)] - pub(crate) fn global_shared() -> Self { - static SHARED_FLAG: Lazy = Lazy::new(SharedFlag::new); - - *SHARED_FLAG - } -} - -impl Default for SharedFlag { - fn default() -> Self { - Self::new() - } -} - -/// A flag that can be set once and shared across multiple threads, while allowing waits for change. -#[derive(Clone, Debug)] -pub(crate) struct StickyFlag(Arc); - -impl StickyFlag { - /// Creates a new sticky flag. - /// - /// The flag will start out as not set. - pub(crate) fn new() -> Self { - StickyFlag(Arc::new(StickyFlagInner { - flag: AtomicBool::new(false), - notify: Notify::new(), - })) - } -} - -/// Inner implementation of the `StickyFlag`. -#[derive(Debug)] -struct StickyFlagInner { - /// The flag to be cleared. - flag: AtomicBool, - /// Notification that the flag has been changed. - notify: Notify, -} - -impl StickyFlag { - /// Sets the flag. - /// - /// Will always send a notification, regardless of whether the flag was actually changed. - pub(crate) fn set(&self) { - self.0.flag.store(true, Ordering::SeqCst); - self.0.notify.notify_waiters(); - } - - /// Waits for the flag to be set. - /// - /// If the flag is already set, returns immediately, otherwise waits for the notification. - /// - /// The future returned by this function is safe to cancel. - pub(crate) async fn wait(&self) { - // Note: We will catch all notifications from the point on where `notified()` is called, so - // we first construct the future, then check the flag. Any notification sent while we - // were loading will be caught in the `notified.await`. - let notified = self.0.notify.notified(); - - if self.0.flag.load(Ordering::SeqCst) { - return; - } - - notified.await; - } -} - /// An "unlimited semaphore". /// /// Upon construction, `TokenizedCount` increases a given `IntGauge` by one for metrics purposed. @@ -567,9 +472,7 @@ mod tests { use futures::FutureExt; use prometheus::IntGauge; - use crate::utils::{SharedFlag, TokenizedCount}; - - use super::{wait_for_arc_drop, xor, StickyFlag}; + use super::{wait_for_arc_drop, xor, TokenizedCount}; #[test] fn xor_works() { @@ -626,35 +529,6 @@ mod tests { assert!(weak.upgrade().is_none()); } - #[test] - fn shared_flag_sanity_check() { - let flag = SharedFlag::new(); - let copied = flag; - - assert!(!flag.is_set()); - assert!(!copied.is_set()); - assert!(!flag.is_set()); - assert!(!copied.is_set()); - - flag.set(); - - assert!(flag.is_set()); - assert!(copied.is_set()); - assert!(flag.is_set()); - assert!(copied.is_set()); - } - - #[test] - fn sticky_flag_sanity_check() { - let flag = StickyFlag::new(); - assert!(flag.wait().now_or_never().is_none()); - - flag.set(); - - // Should finish immediately due to the flag being set. - assert!(flag.wait().now_or_never().is_some()); - } - #[test] fn tokenized_count_sanity_check() { let gauge = IntGauge::new("sanity_gauge", "tokenized count test gauge") @@ -673,14 +547,4 @@ mod tests { drop(ticket1); assert_eq!(gauge.get(), 2); } - - #[test] - fn sticky_flag_race_condition_check() { - let flag = StickyFlag::new(); - assert!(flag.wait().now_or_never().is_none()); - - let waiting = flag.wait(); - flag.set(); - assert!(waiting.now_or_never().is_some()); - } } diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs new file mode 100644 index 0000000000..c7bc7af580 --- /dev/null +++ b/node/src/utils/fuse.rs @@ -0,0 +1,183 @@ +/// Fuses of various kind. +/// +/// A fuse is a boolean flag that can only be set once, but checked any number of times. +use std::sync::{ + atomic::{AtomicBool, Ordering}, + Arc, +}; + +use datasize::DataSize; +use tokio::sync::Notify; + +use super::leak; + +/// A set-once-only flag shared across multiple subsystems. +#[derive(Copy, Clone, DataSize, Debug)] +pub(crate) struct SharedFuse(&'static AtomicBool); + +impl SharedFuse { + /// Creates a new shared flag. + /// + /// The flag is initially not set. + pub(crate) fn new() -> Self { + SharedFuse(leak(AtomicBool::new(false))) + } + + /// Checks whether the flag is set. + pub(crate) fn is_set(self) -> bool { + self.0.load(Ordering::SeqCst) + } + + /// Set the flag. + pub(crate) fn set(self) { + self.0.store(true, Ordering::SeqCst) + } + + /// Returns a shared instance of the flag for testing. + /// + /// The returned flag should **never** have `set` be called upon it, since there is only once + /// instance globally. + #[cfg(test)] + pub(crate) fn global_shared() -> Self { + use once_cell::sync::Lazy; + + static SHARED_FLAG: Lazy = Lazy::new(SharedFuse::new); + + *SHARED_FLAG + } +} + +impl Default for SharedFuse { + fn default() -> Self { + Self::new() + } +} + +/// A shared fuse that can be observed for change. +/// +/// It is similar to a condition var, except it can only bet set once and will immediately return +/// if it was previously set. +#[derive(Clone, Debug)] +pub(crate) struct ObservableFuse(Arc); + +impl ObservableFuse { + /// Creates a new sticky flag. + /// + /// The flag will start out as not set. + pub(crate) fn new() -> Self { + ObservableFuse(Arc::new(ObservableFuseInner { + flag: AtomicBool::new(false), + notify: Notify::new(), + })) + } + + /// Creates a new sticky flag drop switch. + pub(crate) fn drop_switch(&self) -> ObservableFuseDropSwitch { + ObservableFuseDropSwitch(self.clone()) + } +} + +/// Inner implementation of the `StickyFlag`. +#[derive(Debug)] +struct ObservableFuseInner { + /// The flag to be cleared. + flag: AtomicBool, + /// Notification that the flag has been changed. + notify: Notify, +} + +impl ObservableFuse { + /// Sets the flag. + /// + /// Will always send a notification, regardless of whether the flag was actually changed. + pub(crate) fn set(&self) { + self.0.flag.store(true, Ordering::SeqCst); + self.0.notify.notify_waiters(); + } + + /// Waits for the flag to be set. + /// + /// If the flag is already set, returns immediately, otherwise waits for the notification. + /// + /// The future returned by this function is safe to cancel. + pub(crate) async fn wait(&self) { + // Note: We will catch all notifications from the point on where `notified()` is called, so + // we first construct the future, then check the flag. Any notification sent while we + // were loading will be caught in the `notified.await`. + let notified = self.0.notify.notified(); + + if self.0.flag.load(Ordering::SeqCst) { + return; + } + + notified.await; + } +} + +/// A wrapper for an observable fuse that will cause it to be set when dropped. +#[derive(Debug, Clone)] +pub(crate) struct ObservableFuseDropSwitch(ObservableFuse); + +impl Drop for ObservableFuseDropSwitch { + fn drop(&mut self) { + self.0.set() + } +} + +#[cfg(test)] +mod tests { + use futures::FutureExt; + + use super::{ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; + + #[test] + fn shared_fuse_sanity_check() { + let flag = SharedFuse::new(); + let copied = flag; + + assert!(!flag.is_set()); + assert!(!copied.is_set()); + assert!(!flag.is_set()); + assert!(!copied.is_set()); + + flag.set(); + + assert!(flag.is_set()); + assert!(copied.is_set()); + assert!(flag.is_set()); + assert!(copied.is_set()); + } + + #[test] + fn observable_fuse_sanity_check() { + let flag = ObservableFuse::new(); + assert!(flag.wait().now_or_never().is_none()); + + flag.set(); + + // Should finish immediately due to the flag being set. + assert!(flag.wait().now_or_never().is_some()); + } + + #[test] + fn observable_fuse_drop_switch_check() { + let flag = ObservableFuse::new(); + assert!(flag.wait().now_or_never().is_none()); + + let drop_switch = flag.drop_switch(); + assert!(flag.wait().now_or_never().is_none()); + + drop(drop_switch); + assert!(flag.wait().now_or_never().is_some()); + } + + #[test] + fn sticky_flag_race_condition_check() { + let flag = ObservableFuse::new(); + assert!(flag.wait().now_or_never().is_none()); + + let waiting = flag.wait(); + flag.set(); + assert!(waiting.now_or_never().is_some()); + } +} From e613b0ff2500434ba2c9f191ce6edc62b53393b3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 10:09:38 +0100 Subject: [PATCH 265/735] Cleanup terminology around fuses and extract setting into a trait --- node/src/components/small_network/tasks.rs | 2 +- node/src/reactor.rs | 2 +- node/src/utils.rs | 5 +- node/src/utils/fuse.rs | 116 +++++++++++---------- 4 files changed, 66 insertions(+), 59 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 6dcec173f7..de9cb370ce 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -59,7 +59,7 @@ use crate::{ reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::{display_error, LockedLineWriter, ObservableFuse, TokenizedCount}, + utils::{display_error, Fuse, LockedLineWriter, ObservableFuse, TokenizedCount}, }; /// An encoded network message, ready to be sent out. diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 3782313708..2ff6377e81 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -79,7 +79,7 @@ use crate::{ utils::{ self, rlimit::{Limit, OpenFiles, ResourceLimit}, - SharedFuse, Source, WeightedRoundRobin, + Fuse, SharedFuse, Source, WeightedRoundRobin, }, NodeRng, TERMINATION_REQUESTED, }; diff --git a/node/src/utils.rs b/node/src/utils.rs index 9642f1c86b..1669d04d17 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -5,7 +5,7 @@ mod display_error; pub(crate) mod ds; mod external; pub(crate) mod fmt_limit; -pub(crate) mod fuse; +mod fuse; pub(crate) mod opt_display; pub(crate) mod rlimit; pub(crate) mod round_robin; @@ -39,7 +39,7 @@ pub(crate) use external::External; #[cfg(test)] pub(crate) use external::RESOURCES_PATH; pub use external::{LoadError, Loadable}; -pub(crate) use fuse::{ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; +pub(crate) use fuse::{Fuse, ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; pub(crate) use round_robin::WeightedRoundRobin; use crate::types::NodeId; @@ -469,7 +469,6 @@ impl TimeAnchor { mod tests { use std::{sync::Arc, time::Duration}; - use futures::FutureExt; use prometheus::IntGauge; use super::{wait_for_arc_drop, xor, TokenizedCount}; diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs index c7bc7af580..6baa3c780e 100644 --- a/node/src/utils/fuse.rs +++ b/node/src/utils/fuse.rs @@ -11,39 +11,46 @@ use tokio::sync::Notify; use super::leak; +/// A one-time settable boolean flag. +pub(crate) trait Fuse { + /// Trigger the fuse. + fn set(&self); +} + /// A set-once-only flag shared across multiple subsystems. #[derive(Copy, Clone, DataSize, Debug)] pub(crate) struct SharedFuse(&'static AtomicBool); impl SharedFuse { - /// Creates a new shared flag. + /// Creates a new shared fuse. /// - /// The flag is initially not set. + /// The fuse is initially not set. pub(crate) fn new() -> Self { SharedFuse(leak(AtomicBool::new(false))) } - /// Checks whether the flag is set. + /// Checks whether the fuse is set. pub(crate) fn is_set(self) -> bool { self.0.load(Ordering::SeqCst) } - /// Set the flag. - pub(crate) fn set(self) { - self.0.store(true, Ordering::SeqCst) - } - - /// Returns a shared instance of the flag for testing. + /// Returns a shared instance of the fuse for testing. /// - /// The returned flag should **never** have `set` be called upon it, since there is only once + /// The returned fuse should **never** have `set` be called upon it, since there is only once /// instance globally. #[cfg(test)] pub(crate) fn global_shared() -> Self { use once_cell::sync::Lazy; - static SHARED_FLAG: Lazy = Lazy::new(SharedFuse::new); + static SHARED_FUSE: Lazy = Lazy::new(SharedFuse::new); - *SHARED_FLAG + *SHARED_FUSE + } +} + +impl Fuse for SharedFuse { + fn set(&self) { + self.0.store(true, Ordering::SeqCst) } } @@ -61,52 +68,44 @@ impl Default for SharedFuse { pub(crate) struct ObservableFuse(Arc); impl ObservableFuse { - /// Creates a new sticky flag. + /// Creates a new sticky fuse. /// - /// The flag will start out as not set. + /// The fuse will start out as not set. pub(crate) fn new() -> Self { ObservableFuse(Arc::new(ObservableFuseInner { - flag: AtomicBool::new(false), + fuse: AtomicBool::new(false), notify: Notify::new(), })) } - /// Creates a new sticky flag drop switch. + /// Creates a new sticky fuse drop switch. pub(crate) fn drop_switch(&self) -> ObservableFuseDropSwitch { ObservableFuseDropSwitch(self.clone()) } } -/// Inner implementation of the `StickyFlag`. +/// Inner implementation of the `ObservableFuse`. #[derive(Debug)] struct ObservableFuseInner { - /// The flag to be cleared. - flag: AtomicBool, - /// Notification that the flag has been changed. + /// The fuse to trigger. + fuse: AtomicBool, + /// Notification that the fuse has been triggered. notify: Notify, } impl ObservableFuse { - /// Sets the flag. + /// Waits for the fuse to be triggered. /// - /// Will always send a notification, regardless of whether the flag was actually changed. - pub(crate) fn set(&self) { - self.0.flag.store(true, Ordering::SeqCst); - self.0.notify.notify_waiters(); - } - - /// Waits for the flag to be set. - /// - /// If the flag is already set, returns immediately, otherwise waits for the notification. + /// If the fuse is already set, returns immediately, otherwise waits for the notification. /// /// The future returned by this function is safe to cancel. pub(crate) async fn wait(&self) { // Note: We will catch all notifications from the point on where `notified()` is called, so - // we first construct the future, then check the flag. Any notification sent while we + // we first construct the future, then check the fuse. Any notification sent while we // were loading will be caught in the `notified.await`. let notified = self.0.notify.notified(); - if self.0.flag.load(Ordering::SeqCst) { + if self.0.fuse.load(Ordering::SeqCst) { return; } @@ -114,6 +113,13 @@ impl ObservableFuse { } } +impl Fuse for ObservableFuse { + fn set(&self) { + self.0.fuse.store(true, Ordering::SeqCst); + self.0.notify.notify_waiters(); + } +} + /// A wrapper for an observable fuse that will cause it to be set when dropped. #[derive(Debug, Clone)] pub(crate) struct ObservableFuseDropSwitch(ObservableFuse); @@ -128,56 +134,58 @@ impl Drop for ObservableFuseDropSwitch { mod tests { use futures::FutureExt; + use crate::utils::Fuse; + use super::{ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; #[test] fn shared_fuse_sanity_check() { - let flag = SharedFuse::new(); - let copied = flag; + let fuse = SharedFuse::new(); + let copied = fuse; - assert!(!flag.is_set()); + assert!(!fuse.is_set()); assert!(!copied.is_set()); - assert!(!flag.is_set()); + assert!(!fuse.is_set()); assert!(!copied.is_set()); - flag.set(); + fuse.set(); - assert!(flag.is_set()); + assert!(fuse.is_set()); assert!(copied.is_set()); - assert!(flag.is_set()); + assert!(fuse.is_set()); assert!(copied.is_set()); } #[test] fn observable_fuse_sanity_check() { - let flag = ObservableFuse::new(); - assert!(flag.wait().now_or_never().is_none()); + let fuse = ObservableFuse::new(); + assert!(fuse.wait().now_or_never().is_none()); - flag.set(); + fuse.set(); - // Should finish immediately due to the flag being set. - assert!(flag.wait().now_or_never().is_some()); + // Should finish immediately due to the fuse being set. + assert!(fuse.wait().now_or_never().is_some()); } #[test] fn observable_fuse_drop_switch_check() { - let flag = ObservableFuse::new(); - assert!(flag.wait().now_or_never().is_none()); + let fuse = ObservableFuse::new(); + assert!(fuse.wait().now_or_never().is_none()); - let drop_switch = flag.drop_switch(); - assert!(flag.wait().now_or_never().is_none()); + let drop_switch = fuse.drop_switch(); + assert!(fuse.wait().now_or_never().is_none()); drop(drop_switch); - assert!(flag.wait().now_or_never().is_some()); + assert!(fuse.wait().now_or_never().is_some()); } #[test] - fn sticky_flag_race_condition_check() { - let flag = ObservableFuse::new(); - assert!(flag.wait().now_or_never().is_none()); + fn observable_fuse_race_condition_check() { + let fuse = ObservableFuse::new(); + assert!(fuse.wait().now_or_never().is_none()); - let waiting = flag.wait(); - flag.set(); + let waiting = fuse.wait(); + fuse.set(); assert!(waiting.now_or_never().is_some()); } } From 708500bb93689d8afee4d3db6785fefef66b9e9a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 10:17:11 +0100 Subject: [PATCH 266/735] Make fuse drop switches generic --- node/src/utils.rs | 2 +- node/src/utils/fuse.rs | 30 ++++++++++++++++++++---------- 2 files changed, 21 insertions(+), 11 deletions(-) diff --git a/node/src/utils.rs b/node/src/utils.rs index 1669d04d17..c0888a0a19 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -39,7 +39,7 @@ pub(crate) use external::External; #[cfg(test)] pub(crate) use external::RESOURCES_PATH; pub use external::{LoadError, Loadable}; -pub(crate) use fuse::{Fuse, ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; +pub(crate) use fuse::{DropSwitch, Fuse, ObservableFuse, SharedFuse}; pub(crate) use round_robin::WeightedRoundRobin; use crate::types::NodeId; diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs index 6baa3c780e..aa5c5d40d3 100644 --- a/node/src/utils/fuse.rs +++ b/node/src/utils/fuse.rs @@ -77,11 +77,6 @@ impl ObservableFuse { notify: Notify::new(), })) } - - /// Creates a new sticky fuse drop switch. - pub(crate) fn drop_switch(&self) -> ObservableFuseDropSwitch { - ObservableFuseDropSwitch(self.clone()) - } } /// Inner implementation of the `ObservableFuse`. @@ -120,11 +115,26 @@ impl Fuse for ObservableFuse { } } -/// A wrapper for an observable fuse that will cause it to be set when dropped. +/// A wrapper for a fuse that will cause it to be set when dropped. #[derive(Debug, Clone)] -pub(crate) struct ObservableFuseDropSwitch(ObservableFuse); +pub(crate) struct DropSwitch(T) +where + T: Fuse; + +impl DropSwitch +where + T: Fuse, +{ + /// Creates a new drop switch around a fuse. + fn new(fuse: T) -> Self { + DropSwitch(fuse) + } +} -impl Drop for ObservableFuseDropSwitch { +impl Drop for DropSwitch +where + T: Fuse, +{ fn drop(&mut self) { self.0.set() } @@ -136,7 +146,7 @@ mod tests { use crate::utils::Fuse; - use super::{ObservableFuse, ObservableFuseDropSwitch, SharedFuse}; + use super::{DropSwitch, ObservableFuse, SharedFuse}; #[test] fn shared_fuse_sanity_check() { @@ -172,7 +182,7 @@ mod tests { let fuse = ObservableFuse::new(); assert!(fuse.wait().now_or_never().is_none()); - let drop_switch = fuse.drop_switch(); + let drop_switch = DropSwitch::new(fuse.clone()); assert!(fuse.wait().now_or_never().is_none()); drop(drop_switch); From ba84f3227d33f1cf6498eb6e6ea0af8abc870b30 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 10:22:23 +0100 Subject: [PATCH 267/735] Rename `Discard` to `Peel` and move to `utils` --- node/src/components/small_network/tasks.rs | 21 ++------------------- node/src/utils.rs | 21 +++++++++++++++++++++ 2 files changed, 23 insertions(+), 19 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index de9cb370ce..b9a331e3c3 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -59,7 +59,7 @@ use crate::{ reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::{display_error, Fuse, LockedLineWriter, ObservableFuse, TokenizedCount}, + utils::{display_error, Fuse, LockedLineWriter, ObservableFuse, Peel, TokenizedCount}, }; /// An encoded network message, ready to be sent out. @@ -582,23 +582,6 @@ where readers.push(read_next(incoming, channel)); } - // TODO: Move to utils and use elsewhere. - trait Discard { - type Remains; - fn discard(self) -> Self::Remains; - } - - impl Discard for Either<(A, G), (B, F)> { - type Remains = Either; - - fn discard(self) -> Self::Remains { - match self { - Either::Left((v, _)) => Either::Left(v), - Either::Right((v, _)) => Either::Right(v), - } - } - } - loop { let next_reader = readers.next(); let wait_for_close_incoming = close_incoming.wait(); @@ -608,7 +591,7 @@ where let (incoming, channel, outcome) = match future::select(next_reader, wait_for_close_incoming) .await - .discard() + .peel() { Either::Left(Some(item)) => item, Either::Left(None) => { diff --git a/node/src/utils.rs b/node/src/utils.rs index c0888a0a19..9ab6e128ac 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -27,6 +27,7 @@ use std::{ use datasize::DataSize; use fs2::FileExt; +use futures::future::Either; use hyper::server::{conn::AddrIncoming, Builder, Server}; use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; @@ -465,6 +466,26 @@ impl TimeAnchor { } } +/// Discard secondary data from a value. +pub(crate) trait Peel { + /// What is left after discarding the wrapping. + type Inner; + + /// Discard "uninteresting" data. + fn peel(self) -> Self::Inner; +} + +impl Peel for Either<(A, G), (B, F)> { + type Inner = Either; + + fn peel(self) -> Self::Inner { + match self { + Either::Left((v, _)) => Either::Left(v), + Either::Right((v, _)) => Either::Right(v), + } + } +} + #[cfg(test)] mod tests { use std::{sync::Arc, time::Duration}; From bf24d2110ccc11ea014f7200ec171912fe1d5524 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 10:25:24 +0100 Subject: [PATCH 268/735] Use new `Peel` trait through where applicable --- node/src/components/diagnostics_port/tasks.rs | 9 ++++++--- node/src/components/small_network/tasks.rs | 19 ++++++++----------- 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/node/src/components/diagnostics_port/tasks.rs b/node/src/components/diagnostics_port/tasks.rs index 3005830861..054737e45a 100644 --- a/node/src/components/diagnostics_port/tasks.rs +++ b/node/src/components/diagnostics_port/tasks.rs @@ -35,7 +35,7 @@ use crate::{ requests::NetworkInfoRequest, EffectBuilder, }, - utils::display_error, + utils::{display_error, Peel}, }; /// Success or failure response. @@ -421,12 +421,15 @@ where while keep_going { let shutdown_messages = async { while shutdown_receiver.changed().await.is_ok() {} }; - match future::select(Box::pin(shutdown_messages), Box::pin(lines.next_line())).await { + match future::select(Box::pin(shutdown_messages), Box::pin(lines.next_line())) + .await + .peel() + { Either::Left(_) => { info!("shutting down diagnostics port connection to client"); return Ok(()); } - Either::Right((line_result, _)) => { + Either::Right(line_result) => { if let Some(line) = line_result? { keep_going = session .process_line(effect_builder, &mut writer, line.as_str()) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index b9a331e3c3..288852d52f 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -734,15 +734,12 @@ where let stop_wait = stop.wait(); pin_mut!(stop_wait); - match future::select(recv, stop_wait).await { - Either::Left(( - Some(EncodedMessage { - payload: data, - send_finished, - send_token, - }), - _, - )) => { + match future::select(recv, stop_wait).await.peel() { + Either::Left(Some(EncodedMessage { + payload: data, + send_finished, + send_token, + })) => { limiter.request_allowance(data.len() as u32).await; if let Some(responder) = send_finished { dest.send(data).await?; @@ -756,11 +753,11 @@ where // We only drop the token once the message is sent or at least buffered. drop(send_token); } - Either::Left((None, _)) => { + Either::Left(None) => { trace!("sink closed"); return Ok(()); } - Either::Right((_, _)) => { + Either::Right(_) => { trace!("received stop signal"); return Ok(()); } From 557ad4086245b7e3ce90a5d716481e603abc05ae Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 10:26:06 +0100 Subject: [PATCH 269/735] Fix a whitespace error --- node/src/components/small_network/tasks.rs | 1 - 1 file changed, 1 deletion(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 288852d52f..47aec89328 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -661,7 +661,6 @@ where } } } - } /// Multi-channel encoded message sender. From 53e09ada9aa608d568cff8f9550ea75915e6d40e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 12:42:17 +0100 Subject: [PATCH 270/735] Complete integration of new message receiver --- node/src/components/small_network.rs | 39 ++---- node/src/components/small_network/tasks.rs | 133 +-------------------- node/src/utils/fuse.rs | 7 +- 3 files changed, 23 insertions(+), 156 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index eeff16d7a7..3d09a46efa 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -119,7 +119,10 @@ use crate::{ ValidationError, }, types::NodeId, - utils::{self, display_error, LockedLineWriter, Source, TokenizedCount, WithDir}, + utils::{ + self, display_error, DropSwitch, Fuse, LockedLineWriter, ObservableFuse, Source, + TokenizedCount, WithDir, + }, NodeRng, }; @@ -179,16 +182,9 @@ where #[data_size(skip)] server_join_handle: Option>, - /// Channel signaling a shutdown of the incoming connections. - // Note: This channel is closed when we finished syncing, so the `SmallNetwork` can close all - // connections. When they are re-established, the proper value of the now updated `is_syncing` - // flag will be exchanged on handshake. - #[data_size(skip)] - close_incoming_sender: Option>, - /// Handle used by the `message_reader` task to receive a notification that incoming - /// connections should be closed. + /// Fuse that will cause all incoming connections to be closed.. #[data_size(skip)] - close_incoming_receiver: watch::Receiver<()>, + close_incoming: DropSwitch, /// Networking metrics. #[data_size(skip)] @@ -379,7 +375,7 @@ where info!(%local_addr, %public_addr, %protocol_version, "starting server background task"); let (server_shutdown_sender, server_shutdown_receiver) = watch::channel(()); - let (close_incoming_sender, close_incoming_receiver) = watch::channel(()); + let close_incoming = DropSwitch::new(ObservableFuse::new()); let server_join_handle = tokio::spawn( tasks::server( @@ -396,8 +392,7 @@ where outgoing_manager, connection_symmetries: HashMap::new(), shutdown_sender: Some(server_shutdown_sender), - close_incoming_sender: Some(close_incoming_sender), - close_incoming_receiver, + close_incoming, server_join_handle: Some(server_join_handle), net_metrics, outgoing_limiter, @@ -623,24 +618,15 @@ where MESSAGE_FRAGMENT_SIZE, )))); - // Setup one channel. - let demux_123 = - Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), 123) - .expect("mutex poisoned"); - let channel_123: IncomingChannel = Defragmentizer::new( - self.context.chain_info.maximum_net_message_size as usize, - demux_123, - ); - // Now we can start the message reader. let boxed_span = Box::new(span.clone()); effects.extend( - tasks::message_receiver( + tasks::multi_channel_message_receiver( self.context.clone(), - channel_123, + carrier, self.incoming_limiter .create_handle(peer_id, peer_consensus_public_key), - self.close_incoming_receiver.clone(), + self.close_incoming.inner().clone(), peer_id, span.clone(), ) @@ -959,7 +945,8 @@ where async move { // Close the shutdown socket, causing the server to exit. drop(self.shutdown_sender.take()); - drop(self.close_incoming_sender.take()); + + self.close_incoming.inner().set(); // Wait for the server to exit cleanly. if let Some(join_handle) = self.server_join_handle.take() { diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 47aec89328..7f3573a584 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -29,7 +29,7 @@ use serde::de::DeserializeOwned; use strum::{EnumCount, IntoEnumIterator}; use tokio::{ net::TcpStream, - sync::{mpsc::UnboundedReceiver, watch, Semaphore}, + sync::{mpsc::UnboundedReceiver, watch}, }; use tokio_openssl::SslStream; use tracing::{ @@ -55,7 +55,7 @@ use super::{ use crate::{ components::small_network::deserialize_network_message, - effect::{requests::NetworkRequest, AutoClosingResponder, EffectBuilder}, + effect::{requests::NetworkRequest, AutoClosingResponder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, @@ -418,132 +418,10 @@ pub(super) async fn server( } } -/// Network message reader. -/// -/// Schedules all received messages until the stream is closed or an error occurs. -pub(super) async fn message_receiver( - context: Arc>, - mut stream: IncomingChannel, - limiter: Box, - mut close_incoming_receiver: watch::Receiver<()>, - peer_id: NodeId, - span: Span, -) -> Result<(), MessageReaderError> -where - P: DeserializeOwned + Send + Display + Payload, - REv: From> + FromIncoming

+ From> + Send, -{ - let demands_in_flight = Arc::new(Semaphore::new(context.max_in_flight_demands)); - - let read_messages = async move { - while let Some(frame_result) = stream.next().await { - let frame = frame_result.map_err(MessageReaderError::ReceiveError)?; - let msg: Message

= deserialize_network_message(&frame) - .map_err(MessageReaderError::DeserializationError)?; - - trace!(%msg, "message received"); - - let effect_builder = EffectBuilder::new(context.event_queue); - - match msg.try_into_demand(effect_builder, peer_id) { - Ok((event, wait_for_response)) => { - // Note: For now, demands bypass the limiter, as we expect the backpressure to - // handle this instead. - - // Acquire a permit. If we are handling too many demands at this time, this will - // block, halting the processing of new message, thus letting the peer they have - // reached their maximum allowance. - let in_flight = demands_in_flight - .clone() - .acquire_owned() - .await - // Note: Since the semaphore is reference counted, it must explicitly be - // closed for acquisition to fail, which we never do. If this happens, - // there is a bug in the code; we exit with an error and close the - // connection. - .map_err(|_| MessageReaderError::UnexpectedSemaphoreClose)?; - - Metrics::record_trie_request_start(&context.net_metrics); - - let net_metrics = context.net_metrics.clone(); - // Spawn a future that will eventually send the returned message. It will - // essentially buffer the response. - tokio::spawn(async move { - if let Some(payload) = wait_for_response.await { - // Send message and await its return. `send_message` should only return - // when the message has been buffered, if the peer is not accepting - // data, we will block here until the send buffer has sufficient room. - effect_builder.send_message(peer_id, payload).await; - - // Note: We could short-circuit the event queue here and directly insert - // into the outgoing message queue, which may be potential - // performance improvement. - } - - // Missing else: The handler of the demand did not deem it worthy a - // response. Just drop it. - - // After we have either successfully buffered the message for sending, - // failed to do so or did not have a message to send out, we consider the - // request handled and free up the permit. - Metrics::record_trie_request_end(&net_metrics); - drop(in_flight); - }); - - // Schedule the created event. - context - .event_queue - .schedule::(event, QueueKind::NetworkDemand) - .await; - } - Err(msg) => { - // We've received a non-demand message. Ensure we have the proper amount of - // resources, then push it to the reactor. - limiter - .request_allowance( - msg.payload_incoming_resource_estimate(&context.payload_weights), - ) - .await; - - let queue_kind = if msg.is_low_priority() { - QueueKind::NetworkLowPriority - } else { - QueueKind::NetworkIncoming - }; - - context - .event_queue - .schedule( - Event::IncomingMessage { - peer_id: Box::new(peer_id), - msg: Box::new(msg), - span: span.clone(), - }, - queue_kind, - ) - .await; - } - } - } - Ok::<_, MessageReaderError>(()) - }; - - let shutdown_messages = async move { while close_incoming_receiver.changed().await.is_ok() {} }; - - // Now we can wait for either the `shutdown` channel's remote end to do be dropped or the - // while loop to terminate. - match future::select(Box::pin(shutdown_messages), Box::pin(read_messages)).await { - Either::Left(_) => info!("shutting down incoming connection message reader"), - Either::Right(_) => (), - } - - Ok(()) -} - /// Multi-channel message receiver. -pub(super) async fn new_message_receiver( +pub(super) async fn multi_channel_message_receiver( context: Arc>, - carrier: IncomingCarrier, + carrier: Arc>, limiter: Box, close_incoming: ObservableFuse, peer_id: NodeId, @@ -553,9 +431,6 @@ where P: DeserializeOwned + Send + Display + Payload, REv: From> + FromIncoming

+ From> + Send, { - // Sets up all channels on top of the carrier. - let carrier = Arc::new(Mutex::new(carrier)); - // TODO: Replace with select_all! async fn read_next( mut incoming: IncomingChannel, diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs index aa5c5d40d3..389fe18bfc 100644 --- a/node/src/utils/fuse.rs +++ b/node/src/utils/fuse.rs @@ -126,9 +126,14 @@ where T: Fuse, { /// Creates a new drop switch around a fuse. - fn new(fuse: T) -> Self { + pub(crate) fn new(fuse: T) -> Self { DropSwitch(fuse) } + + /// Access the wrapped fuse. + pub(crate) fn inner(&self) -> &T { + &self.0 + } } impl Drop for DropSwitch From 72e088ec14726735621a90e3b4eeb13267d95fce Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 12:53:00 +0100 Subject: [PATCH 271/735] Add a `DataSize` implementation for `fuse` module --- node/src/components/small_network.rs | 1 - node/src/utils/fuse.rs | 8 +++++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 3d09a46efa..28e2edf44e 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -183,7 +183,6 @@ where server_join_handle: Option>, /// Fuse that will cause all incoming connections to be closed.. - #[data_size(skip)] close_incoming: DropSwitch, /// Networking metrics. diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs index 389fe18bfc..1fa431b7c6 100644 --- a/node/src/utils/fuse.rs +++ b/node/src/utils/fuse.rs @@ -64,7 +64,7 @@ impl Default for SharedFuse { /// /// It is similar to a condition var, except it can only bet set once and will immediately return /// if it was previously set. -#[derive(Clone, Debug)] +#[derive(DataSize, Clone, Debug)] pub(crate) struct ObservableFuse(Arc); impl ObservableFuse { @@ -80,11 +80,13 @@ impl ObservableFuse { } /// Inner implementation of the `ObservableFuse`. -#[derive(Debug)] +#[derive(DataSize, Debug)] struct ObservableFuseInner { /// The fuse to trigger. + #[data_size(skip)] fuse: AtomicBool, /// Notification that the fuse has been triggered. + #[data_size(skip)] notify: Notify, } @@ -116,7 +118,7 @@ impl Fuse for ObservableFuse { } /// A wrapper for a fuse that will cause it to be set when dropped. -#[derive(Debug, Clone)] +#[derive(DataSize, Debug, Clone)] pub(crate) struct DropSwitch(T) where T: Fuse; From 84e35033f8e599a08b6b98f222fbcc94554e94f9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 12:58:26 +0100 Subject: [PATCH 272/735] Replace hacky `watch` workarounds with proper fuses --- node/src/components/small_network.rs | 18 ++++++------------ node/src/components/small_network/tasks.rs | 10 ++++++---- 2 files changed, 12 insertions(+), 16 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 28e2edf44e..3b31acce67 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -74,7 +74,6 @@ use tokio::{ net::TcpStream, sync::{ mpsc::{self, UnboundedReceiver, UnboundedSender}, - watch, }, task::JoinHandle, }; @@ -173,11 +172,8 @@ where /// Tracks whether a connection is symmetric or not. connection_symmetries: HashMap, - /// Channel signaling a shutdown of the small network. - // Note: This channel is closed when `SmallNetwork` is dropped, signalling the receivers that - // they should cease operation. - #[data_size(skip)] - shutdown_sender: Option>, + /// Fuse signaling a shutdown of the small network. + shutdown_fuse: DropSwitch, /// Join handle for the server thread. #[data_size(skip)] server_join_handle: Option>, @@ -373,14 +369,14 @@ where // which we need to shutdown cleanly later on. info!(%local_addr, %public_addr, %protocol_version, "starting server background task"); - let (server_shutdown_sender, server_shutdown_receiver) = watch::channel(()); + let shutdown_fuse = DropSwitch::new(ObservableFuse::new()); let close_incoming = DropSwitch::new(ObservableFuse::new()); let server_join_handle = tokio::spawn( tasks::server( context.clone(), tokio::net::TcpListener::from_std(listener).map_err(Error::ListenerConversion)?, - server_shutdown_receiver, + shutdown_fuse.inner().clone(), ) .in_current_span(), ); @@ -390,7 +386,7 @@ where context, outgoing_manager, connection_symmetries: HashMap::new(), - shutdown_sender: Some(server_shutdown_sender), + shutdown_fuse, close_incoming, server_join_handle: Some(server_join_handle), net_metrics, @@ -942,9 +938,7 @@ where { fn finalize(mut self) -> BoxFuture<'static, ()> { async move { - // Close the shutdown socket, causing the server to exit. - drop(self.shutdown_sender.take()); - + self.shutdown_fuse.inner().set(); self.close_incoming.inner().set(); // Wait for the server to exit cleanly. diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 7f3573a584..162ea7ffd3 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -29,7 +29,7 @@ use serde::de::DeserializeOwned; use strum::{EnumCount, IntoEnumIterator}; use tokio::{ net::TcpStream, - sync::{mpsc::UnboundedReceiver, watch}, + sync::{mpsc::UnboundedReceiver}, }; use tokio_openssl::SslStream; use tracing::{ @@ -349,7 +349,7 @@ pub(super) async fn server_setup_tls( pub(super) async fn server( context: Arc>, listener: tokio::net::TcpListener, - mut shutdown_receiver: watch::Receiver<()>, + shutdown_receiver: ObservableFuse, ) where REv: From> + Send, P: Payload, @@ -405,11 +405,13 @@ pub(super) async fn server( } }; - let shutdown_messages = async move { while shutdown_receiver.changed().await.is_ok() {} }; + let shutdown_messages = shutdown_receiver.wait(); + pin_mut!(shutdown_messages); + pin_mut!(accept_connections); // Now we can wait for either the `shutdown` channel's remote end to do be dropped or the // infinite loop to terminate, which never happens. - match future::select(Box::pin(shutdown_messages), Box::pin(accept_connections)).await { + match future::select(shutdown_messages, accept_connections).await { Either::Left(_) => info!( %context.our_id, "shutting down socket, no longer accepting incoming connections" From 64042baa65f118d2a04df7ef57df3c1824931b4b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 13:00:45 +0100 Subject: [PATCH 273/735] Remove second fuse in networking to close incoming connections, use shutdown instead --- node/src/components/small_network.rs | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 3b31acce67..141818c52a 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -72,9 +72,7 @@ use strum::EnumCount; use thiserror::Error; use tokio::{ net::TcpStream, - sync::{ - mpsc::{self, UnboundedReceiver, UnboundedSender}, - }, + sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, task::JoinHandle, }; use tokio_openssl::SslStream; @@ -178,9 +176,6 @@ where #[data_size(skip)] server_join_handle: Option>, - /// Fuse that will cause all incoming connections to be closed.. - close_incoming: DropSwitch, - /// Networking metrics. #[data_size(skip)] net_metrics: Arc, @@ -370,7 +365,6 @@ where info!(%local_addr, %public_addr, %protocol_version, "starting server background task"); let shutdown_fuse = DropSwitch::new(ObservableFuse::new()); - let close_incoming = DropSwitch::new(ObservableFuse::new()); let server_join_handle = tokio::spawn( tasks::server( @@ -387,7 +381,6 @@ where outgoing_manager, connection_symmetries: HashMap::new(), shutdown_fuse, - close_incoming, server_join_handle: Some(server_join_handle), net_metrics, outgoing_limiter, @@ -621,7 +614,7 @@ where carrier, self.incoming_limiter .create_handle(peer_id, peer_consensus_public_key), - self.close_incoming.inner().clone(), + self.shutdown_fuse.inner().clone(), peer_id, span.clone(), ) @@ -939,7 +932,6 @@ where fn finalize(mut self) -> BoxFuture<'static, ()> { async move { self.shutdown_fuse.inner().set(); - self.close_incoming.inner().set(); // Wait for the server to exit cleanly. if let Some(join_handle) = self.server_join_handle.take() { From 14cee477d689e043e7a45fa237bcbc8beb26049f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 13:23:22 +0100 Subject: [PATCH 274/735] Use fuses instead of `watch` in diagnostics port --- node/src/components/diagnostics_port.rs | 17 +++++----- node/src/components/diagnostics_port/tasks.rs | 33 ++++++++++--------- 2 files changed, 26 insertions(+), 24 deletions(-) diff --git a/node/src/components/diagnostics_port.rs b/node/src/components/diagnostics_port.rs index 2fd6e4ce95..eb0e2ea734 100644 --- a/node/src/components/diagnostics_port.rs +++ b/node/src/components/diagnostics_port.rs @@ -16,7 +16,7 @@ use std::{ use datasize::DataSize; use serde::{Deserialize, Serialize}; use thiserror::Error; -use tokio::{net::UnixListener, sync::watch}; +use tokio::net::UnixListener; use tracing::{debug, warn}; use super::Component; @@ -27,7 +27,7 @@ use crate::{ }, reactor::EventQueueHandle, types::NodeRng, - utils::umask, + utils::{umask, DropSwitch, ObservableFuse}, WithDir, }; pub use tasks::FileSerializer; @@ -37,9 +37,8 @@ use util::ShowUnixAddr; #[derive(Debug, DataSize)] pub(crate) struct DiagnosticsPort { /// Sender, when dropped, will cause server and client connections to exit. - #[data_size(skip)] - #[allow(dead_code)] // only used for its `Drop` impl. - shutdown_sender: watch::Sender<()>, + #[allow(dead_code)] + shutdown_fuse: DropSwitch, } /// Diagnostics port configuration. @@ -76,14 +75,14 @@ impl DiagnosticsPort { + Send, { let config = cfg.value(); - let (shutdown_sender, shutdown_receiver) = watch::channel(()); + let shutdown_fuse = DropSwitch::new(ObservableFuse::new()); if !config.enabled { // If not enabled, do not launch a background task, simply exit immediately. // // Having a shutdown sender around still is harmless. debug!("diagnostics port disabled"); - return Ok((DiagnosticsPort { shutdown_sender }, Effects::new())); + return Ok((DiagnosticsPort { shutdown_fuse }, Effects::new())); } let socket_path = cfg.with_dir(config.socket_path.clone()); @@ -97,10 +96,10 @@ impl DiagnosticsPort { EffectBuilder::new(event_queue), socket_path, listener, - shutdown_receiver, + shutdown_fuse.inner().clone(), ); - Ok((DiagnosticsPort { shutdown_sender }, server.ignore())) + Ok((DiagnosticsPort { shutdown_fuse }, server.ignore())) } } diff --git a/node/src/components/diagnostics_port/tasks.rs b/node/src/components/diagnostics_port/tasks.rs index 054737e45a..f16ce02c6c 100644 --- a/node/src/components/diagnostics_port/tasks.rs +++ b/node/src/components/diagnostics_port/tasks.rs @@ -11,13 +11,15 @@ use bincode::{ DefaultOptions, Options, }; use erased_serde::Serializer as ErasedSerializer; -use futures::future::{self, Either}; +use futures::{ + future::{self, Either}, + pin_mut, +}; use serde::Serialize; use thiserror::Error; use tokio::{ io::{AsyncBufReadExt, AsyncRead, AsyncWriteExt, BufReader}, net::{unix::OwnedWriteHalf, UnixListener, UnixStream}, - sync::watch, }; use tracing::{debug, info, info_span, warn, Instrument}; @@ -35,7 +37,7 @@ use crate::{ requests::NetworkInfoRequest, EffectBuilder, }, - utils::{display_error, Peel}, + utils::{display_error, ObservableFuse, Peel}, }; /// Success or failure response. @@ -403,7 +405,7 @@ impl Session { async fn handler( effect_builder: EffectBuilder, stream: UnixStream, - mut shutdown_receiver: watch::Receiver<()>, + shutdown_fuse: ObservableFuse, ) -> io::Result<()> where REv: From @@ -419,12 +421,12 @@ where let mut keep_going = true; while keep_going { - let shutdown_messages = async { while shutdown_receiver.changed().await.is_ok() {} }; + let shutdown = shutdown_fuse.wait(); + pin_mut!(shutdown); + let next_line = lines.next_line(); + pin_mut!(next_line); - match future::select(Box::pin(shutdown_messages), Box::pin(lines.next_line())) - .await - .peel() - { + match future::select(shutdown, next_line).await.peel() { Either::Left(_) => { info!("shutting down diagnostics port connection to client"); return Ok(()); @@ -450,15 +452,15 @@ pub(super) async fn server( effect_builder: EffectBuilder, socket_path: PathBuf, listener: UnixListener, - mut shutdown_receiver: watch::Receiver<()>, + shutdown_fuse: ObservableFuse, ) where REv: From + From + From + Send, { - let handling_shutdown_receiver = shutdown_receiver.clone(); let mut next_client_id: u64 = 0; + let acceptor_fuse = shutdown_fuse.clone(); let accept_connections = async move { loop { match listener.accept().await { @@ -474,8 +476,7 @@ pub(super) async fn server( next_client_id += 1; tokio::spawn( - handler(effect_builder, stream, handling_shutdown_receiver.clone()) - .instrument(span), + handler(effect_builder, stream, acceptor_fuse.clone()).instrument(span), ); } Err(err) => { @@ -485,11 +486,13 @@ pub(super) async fn server( } }; - let shutdown_messages = async move { while shutdown_receiver.changed().await.is_ok() {} }; + let shutdown = shutdown_fuse.wait(); + pin_mut!(shutdown); + pin_mut!(accept_connections); // Now we can wait for either the `shutdown` channel's remote end to do be dropped or the // infinite loop to terminate, which never happens. - match future::select(Box::pin(shutdown_messages), Box::pin(accept_connections)).await { + match future::select(shutdown, accept_connections).await { Either::Left(_) => info!("shutting down diagnostics port"), Either::Right(_) => unreachable!("server accept returns `!`"), } From 150fa8e1c008ac2a13512919f396f1e47257e304 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 13:45:07 +0100 Subject: [PATCH 275/735] Use `SelectAll` instead of recreating it inline in small network tasks --- node/src/components/small_network/tasks.rs | 154 +++++++++------------ 1 file changed, 62 insertions(+), 92 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 162ea7ffd3..00082117d7 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -12,8 +12,9 @@ use bytes::Bytes; use futures::{ future::{self, Either}, pin_mut, + prelude::stream::SelectAll, stream::FuturesUnordered, - Sink, SinkExt, Stream, StreamExt, + Sink, SinkExt, StreamExt, }; use muxink::{ @@ -27,10 +28,7 @@ use openssl::{ }; use serde::de::DeserializeOwned; use strum::{EnumCount, IntoEnumIterator}; -use tokio::{ - net::TcpStream, - sync::{mpsc::UnboundedReceiver}, -}; +use tokio::{net::TcpStream, sync::mpsc::UnboundedReceiver}; use tokio_openssl::SslStream; use tracing::{ debug, error, error_span, @@ -48,8 +46,8 @@ use super::{ handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, message::ConsensusKeyPair, - Channel, EstimatorWeights, Event, FromIncoming, IncomingCarrier, IncomingChannel, Message, - Metrics, OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, + Channel, EstimatorWeights, Event, FromIncoming, IncomingCarrier, Message, Metrics, + OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, MESSAGE_FRAGMENT_SIZE, }; @@ -433,20 +431,8 @@ where P: DeserializeOwned + Send + Display + Payload, REv: From> + FromIncoming

+ From> + Send, { - // TODO: Replace with select_all! - async fn read_next( - mut incoming: IncomingChannel, - channel: Channel, - ) -> ( - IncomingChannel, - Channel, - Option<::Item>, - ) { - let rv = incoming.next().await; - (incoming, channel, rv) - } - - let mut readers = FuturesUnordered::new(); + // We create a single select that returns items from all the streams. + let mut select = SelectAll::new(); for channel in Channel::iter() { let demuxer = Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), channel as u8) @@ -455,88 +441,72 @@ where context.chain_info.maximum_net_message_size as usize, demuxer, ); - - readers.push(read_next(incoming, channel)); + select.push(incoming.map(move |frame| (channel, frame))); } + // Core receival loop. loop { - let next_reader = readers.next(); + let next_item = select.next(); let wait_for_close_incoming = close_incoming.wait(); - pin_mut!(next_reader); + pin_mut!(next_item); pin_mut!(wait_for_close_incoming); - let (incoming, channel, outcome) = - match future::select(next_reader, wait_for_close_incoming) - .await - .peel() - { - Either::Left(Some(item)) => item, - Either::Left(None) => { - // We ran out of channels. Should not happen with at least one channel defined. - error!("did not expect to run out of channels to read"); - - return Ok(()); - } - Either::Right(_) => { - debug!("message reader shutdown requested"); - return Ok(()); - } - }; + let (channel, frame) = match future::select(next_item, wait_for_close_incoming) + .await + .peel() + { + Either::Left(Some((channel, result))) => { + (channel, result.map_err(MessageReaderError::ReceiveError)?) + } + Either::Left(None) => { + // We ran out of channels. Should not happen with at least one channel defined. + error!("did not expect to run out of channels to read"); - match outcome { - None => { - // All good. One incoming channel closed, so we just exit, dropping all the others. return Ok(()); } - Some(Err(err)) => { - // An incoming channel failed, so exit with the error. - return Err(MessageReaderError::ReceiveError(err)); - } - Some(Ok(frame)) => { - let msg: Message

= deserialize_network_message(&frame) - .map_err(MessageReaderError::DeserializationError)?; - trace!(%msg, "message received"); - - // TODO: Re-add support for demands when backpressure is added. - - // The limiter stops _all_ channels, as they share a resource pool anyway. - limiter - .request_allowance( - msg.payload_incoming_resource_estimate(&context.payload_weights), - ) - .await; - - // Ensure the peer did not try to sneak in a message on a different channel. - let msg_channel = msg.get_channel(); - if msg_channel != channel { - return Err(MessageReaderError::WrongChannel { - got: msg_channel, - expected: channel, - }); - } - - let queue_kind = if msg.is_low_priority() { - QueueKind::NetworkLowPriority - } else { - QueueKind::NetworkIncoming - }; - - context - .event_queue - .schedule( - Event::IncomingMessage { - peer_id: Box::new(peer_id), - msg: Box::new(msg), - span: span.clone(), - }, - queue_kind, - ) - .await; - - // Recreata a future receiving on this particular channel. - readers.push(read_next(incoming, channel)); + Either::Right(_) => { + debug!("message reader shutdown requested"); + return Ok(()); } + }; + + let msg: Message

= deserialize_network_message(&frame) + .map_err(MessageReaderError::DeserializationError)?; + trace!(%msg, "message received"); + + // TODO: Re-add support for demands when backpressure is added. + + // The limiter stops _all_ channels, as they share a resource pool anyway. + limiter + .request_allowance(msg.payload_incoming_resource_estimate(&context.payload_weights)) + .await; + + // Ensure the peer did not try to sneak in a message on a different channel. + let msg_channel = msg.get_channel(); + if msg_channel != channel { + return Err(MessageReaderError::WrongChannel { + got: msg_channel, + expected: channel, + }); } + + let queue_kind = if msg.is_low_priority() { + QueueKind::NetworkLowPriority + } else { + QueueKind::NetworkIncoming + }; + + context + .event_queue + .schedule( + Event::IncomingMessage { + peer_id: Box::new(peer_id), + msg: Box::new(msg), + span: span.clone(), + }, + queue_kind, + ) + .await; } } From cdb0f31c4defab74e4411bd279e777560b5d6c61 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 21 Nov 2022 14:00:14 +0100 Subject: [PATCH 276/735] Use all `Channel` numbers starting from 0 --- node/src/components/small_network/message.rs | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index 141a1b9dab..a72d07ee0d 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -336,25 +336,25 @@ impl Display for MessageKind { #[repr(u8)] pub enum Channel { /// Networking layer messages, e.g. address gossip. - Network = 1, + Network = 0, /// Data solely used for syncing being requested. /// /// We separate sync data (e.g. trie nodes) requests from regular ("data") requests since the /// former are not required for a validating node to make progress on consensus, thus separating /// these can improve latency. - SyncDataRequests = 2, + SyncDataRequests = 1, /// Sync data requests being answered. /// /// Responses are separated from requests to ensure liveness (see [`Channel`] documentation). - SyncDataResponses = 3, + SyncDataResponses = 2, /// Requests for data used during regular validator operation. - DataRequests = 4, + DataRequests = 3, /// Responses for data used during regular validator operation. - DataResponses = 5, + DataResponses = 4, /// Consensus-level messages, like finality signature announcements and consensus messages. - Consensus = 6, + Consensus = 5, /// Regular gossip announcements and responses (e.g. for deploys and blocks). - BulkGossip = 7, + BulkGossip = 6, } /// Network message payload. @@ -776,7 +776,9 @@ mod tests { #[test] fn channels_enum_does_not_have_holes() { for idx in 0..Channel::COUNT { - let _ = Channel::from_repr(idx as u8).expect("must not have holes in channel enum"); + let result = Channel::from_repr(idx as u8); + eprintln!("idx: {} channel: {:?}", idx, result); + result.expect("must not have holes in channel enum"); } } } From 0538c0413b050e6843efca9f27d3031918324053 Mon Sep 17 00:00:00 2001 From: Daniel Werner Date: Fri, 2 Dec 2022 08:59:38 -0800 Subject: [PATCH 277/735] extract fixtures module, create testing feature --- muxink/Cargo.toml | 12 ++++ muxink/src/backpressured.rs | 109 ++----------------------------- muxink/src/bin/load_testing.rs | 5 ++ muxink/src/lib.rs | 2 +- muxink/src/testing.rs | 3 +- muxink/src/testing/fixtures.rs | 115 +++++++++++++++++++++++++++++++++ muxink/src/testing/pipe.rs | 2 +- 7 files changed, 140 insertions(+), 108 deletions(-) create mode 100644 muxink/src/bin/load_testing.rs create mode 100644 muxink/src/testing/fixtures.rs diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index 86a75375a7..b52096a01c 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -3,6 +3,17 @@ name = "muxink" version = "0.1.0" edition = "2021" +[features] +default = [] +testing = ["tokio-stream"] + +[[bin]] +name = "load_testing" +src = "bin/load_testing.rs" +test = false +bench = false +required-features = ["testing"] + [dependencies] bytes = "1.1.0" futures = "0.3.21" @@ -10,6 +21,7 @@ thiserror = "1.0.31" tokio = { version = "1" } tokio-util = "0.7.2" tracing = "0.1.18" +tokio-stream = { version = "0.1.8", optional = true } [dev-dependencies] tokio = { version = "1", features = [ "io-util", "macros", "net", "rt" ] } diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index ea8312b6d5..c9ece79fae 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -444,120 +444,19 @@ where #[cfg(test)] mod tests { - use std::{collections::VecDeque, convert::Infallible, sync::Arc}; + use std::{collections::VecDeque, convert::Infallible}; - use bytes::Bytes; - use futures::{FutureExt, Sink, SinkExt, Stream, StreamExt}; + use futures::{FutureExt, SinkExt, StreamExt}; use tokio_stream::wrappers::ReceiverStream; use tokio_util::sync::PollSender; use crate::testing::{ collect_bufs, encoding::{EncodeAndSend, TestEncodeable}, - testing_sink::{TestingSink, TestingSinkRef}, + fixtures::{OneWayFixtures, TwoWayFixtures, WINDOW_SIZE}, }; - use super::{ - BackpressureError, BackpressuredSink, BackpressuredStream, BackpressuredStreamError, - }; - - /// Window size used in tests. - const WINDOW_SIZE: u64 = 3; - - /// Sets up a `Sink`/`Stream` pair that outputs infallible results. - fn setup_io_pipe( - size: usize, - ) -> ( - impl Sink + Unpin + 'static, - impl Stream> + Unpin + 'static, - ) { - let (send, recv) = tokio::sync::mpsc::channel::(size); - - let stream = ReceiverStream::new(recv).map(Ok); - - let sink = - PollSender::new(send).sink_map_err(|_err| panic!("did not expect a `PollSendError`")); - - (sink, stream) - } - - /// A common set of fixtures used in the backpressure tests. - /// - /// The fixtures represent what a server holds when dealing with a backpressured client. - struct OneWayFixtures { - /// A sender for ACKs back to the client. - ack_sink: Box + Unpin>, - /// The clients sink for requests, with no backpressure wrapper. Used for retrieving the - /// test data in the end or setting plugged/clogged status. - sink: Arc, - /// The properly set up backpressured sink. - bp: BackpressuredSink< - TestingSinkRef, - Box> + Unpin>, - Bytes, - >, - } - - impl OneWayFixtures { - /// Creates a new set of fixtures. - fn new() -> Self { - let sink = Arc::new(TestingSink::new()); - - let (raw_ack_sink, raw_ack_stream) = setup_io_pipe::(1024); - - // The ACK stream and sink need to be boxed to make their types named. - let ack_sink: Box + Unpin> = Box::new(raw_ack_sink); - let ack_stream: Box> + Unpin> = - Box::new(raw_ack_stream); - - let bp = BackpressuredSink::new(sink.clone().into_ref(), ack_stream, WINDOW_SIZE); - - Self { ack_sink, sink, bp } - } - } - - /// A more complicated setup for testing backpressure that allows accessing both sides of the - /// connection. - /// - /// The resulting `client` sends byte frames across to the `server`, with ACKs flowing through - /// the associated ACK pipe. - #[allow(clippy::type_complexity)] - struct TwoWayFixtures { - client: BackpressuredSink< - Box + Send + Unpin>, - Box> + Send + Unpin>, - Bytes, - >, - server: BackpressuredStream< - Box> + Send + Unpin>, - Box + Send + Unpin>, - Bytes, - >, - } - - impl TwoWayFixtures { - /// Creates a new set of two-way fixtures. - fn new(size: usize) -> Self { - let (sink, stream) = setup_io_pipe::(size); - - let (ack_sink, ack_stream) = setup_io_pipe::(size); - - let boxed_sink: Box + Send + Unpin + 'static> = - Box::new(sink); - let boxed_ack_stream: Box> + Send + Unpin> = - Box::new(ack_stream); - - let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, WINDOW_SIZE); - - let boxed_stream: Box> + Send + Unpin> = - Box::new(stream); - let boxed_ack_sink: Box + Send + Unpin> = - Box::new(ack_sink); - let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, WINDOW_SIZE); - - TwoWayFixtures { client, server } - } - } + use super::{BackpressureError, BackpressuredStream, BackpressuredStreamError}; #[test] fn backpressured_sink_lifecycle() { diff --git a/muxink/src/bin/load_testing.rs b/muxink/src/bin/load_testing.rs new file mode 100644 index 0000000000..676ec93c4b --- /dev/null +++ b/muxink/src/bin/load_testing.rs @@ -0,0 +1,5 @@ +use muxink; + +fn main() { + println!("hello world"); +} diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index c56c2b4531..f23638bd2d 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -30,7 +30,7 @@ pub mod fragmented; pub mod framing; pub mod io; pub mod mux; -#[cfg(test)] +#[cfg(any(test, feature = "testing"))] pub mod testing; use bytes::Buf; diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index e0319ea665..efd622a5c1 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -1,6 +1,7 @@ //! Testing support utilities. pub mod encoding; +pub mod fixtures; pub mod pipe; pub mod testing_sink; @@ -70,7 +71,7 @@ pub(crate) struct TestStream { } impl TestStream { - pub(crate) fn new(items: Vec) -> Self { + pub fn new(items: Vec) -> Self { TestStream { items: items.into(), finished: false, diff --git a/muxink/src/testing/fixtures.rs b/muxink/src/testing/fixtures.rs new file mode 100644 index 0000000000..7863b37205 --- /dev/null +++ b/muxink/src/testing/fixtures.rs @@ -0,0 +1,115 @@ +use std::{convert::Infallible, sync::Arc}; + +use bytes::Bytes; +use futures::{Sink, SinkExt, Stream, StreamExt}; +use tokio_stream::wrappers::ReceiverStream; +use tokio_util::sync::PollSender; + +use crate::{ + backpressured::{BackpressuredSink, BackpressuredStream}, + testing::testing_sink::{TestingSink, TestingSinkRef}, +}; + +/// Window size used in tests. +pub const WINDOW_SIZE: u64 = 3; + +/// Sets up a `Sink`/`Stream` pair that outputs infallible results. +pub fn setup_io_pipe( + size: usize, +) -> ( + impl Sink + Unpin + 'static, + impl Stream> + Unpin + 'static, +) { + let (send, recv) = tokio::sync::mpsc::channel::(size); + + let stream = ReceiverStream::new(recv).map(Ok); + + let sink = + PollSender::new(send).sink_map_err(|_err| panic!("did not expect a `PollSendError`")); + + (sink, stream) +} + +/// A common set of fixtures used in the backpressure tests. +/// +/// The fixtures represent what a server holds when dealing with a backpressured client. +pub struct OneWayFixtures { + /// A sender for ACKs back to the client. + pub ack_sink: Box + Unpin>, + /// The clients sink for requests, with no backpressure wrapper. Used for retrieving the + /// test data in the end or setting plugged/clogged status. + pub sink: Arc, + /// The properly set up backpressured sink. + pub bp: BackpressuredSink< + TestingSinkRef, + Box> + Unpin>, + Bytes, + >, +} + +impl OneWayFixtures { + /// Creates a new set of fixtures. + pub fn new() -> Self { + let sink = Arc::new(TestingSink::new()); + + let (raw_ack_sink, raw_ack_stream) = setup_io_pipe::(1024); + + // The ACK stream and sink need to be boxed to make their types named. + let ack_sink: Box + Unpin> = Box::new(raw_ack_sink); + let ack_stream: Box> + Unpin> = + Box::new(raw_ack_stream); + + let bp = BackpressuredSink::new(sink.clone().into_ref(), ack_stream, WINDOW_SIZE); + + Self { ack_sink, sink, bp } + } +} + +impl Default for OneWayFixtures { + fn default() -> Self { + Self::new() + } +} + +/// A more complicated setup for testing backpressure that allows accessing both sides of the +/// connection. +/// +/// The resulting `client` sends byte frames across to the `server`, with ACKs flowing through +/// the associated ACK pipe. +#[allow(clippy::type_complexity)] +pub struct TwoWayFixtures { + pub client: BackpressuredSink< + Box + Send + Unpin>, + Box> + Send + Unpin>, + Bytes, + >, + pub server: BackpressuredStream< + Box> + Send + Unpin>, + Box + Send + Unpin>, + Bytes, + >, +} + +impl TwoWayFixtures { + /// Creates a new set of two-way fixtures. + pub fn new(size: usize) -> Self { + let (sink, stream) = setup_io_pipe::(size); + + let (ack_sink, ack_stream) = setup_io_pipe::(size); + + let boxed_sink: Box + Send + Unpin + 'static> = + Box::new(sink); + let boxed_ack_stream: Box> + Send + Unpin> = + Box::new(ack_stream); + + let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, WINDOW_SIZE); + + let boxed_stream: Box> + Send + Unpin> = + Box::new(stream); + let boxed_ack_sink: Box + Send + Unpin> = + Box::new(ack_sink); + let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, WINDOW_SIZE); + + TwoWayFixtures { client, server } + } +} diff --git a/muxink/src/testing/pipe.rs b/muxink/src/testing/pipe.rs index 263984dda5..b418ba378c 100644 --- a/muxink/src/testing/pipe.rs +++ b/muxink/src/testing/pipe.rs @@ -151,7 +151,7 @@ impl AsyncWrite for WriteEnd { /// /// Dropping either end of the pipe will close it, causing writes to return broken pipe errors and /// reads to return successful 0-byte reads. -pub(crate) fn pipe() -> (WriteEnd, ReadEnd) { +pub fn pipe() -> (WriteEnd, ReadEnd) { let inner: Arc> = Default::default(); let read_end = ReadEnd { inner: inner.clone(), From 91deb23cb67dc21d27105e630c68b188b3836cee Mon Sep 17 00:00:00 2001 From: Daniel Werner Date: Fri, 2 Dec 2022 10:55:09 -0800 Subject: [PATCH 278/735] add load_testing binary for use with heaptrack, impl basic tests --- Cargo.lock | 1 + Cargo.toml | 4 ++ muxink/Cargo.toml | 3 +- muxink/src/bin/load_testing.rs | 93 +++++++++++++++++++++++++++++- muxink/src/testing.rs | 3 +- muxink/src/testing/fixtures.rs | 8 ++- muxink/src/testing/pipe.rs | 3 +- muxink/src/testing/testing_sink.rs | 5 +- 8 files changed, 112 insertions(+), 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 7f84176f68..bdf4913ee6 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2835,6 +2835,7 @@ version = "0.1.0" dependencies = [ "bytes", "futures", + "rand 0.8.5", "thiserror", "tokio", "tokio-stream", diff --git a/Cargo.toml b/Cargo.toml index 683daa99d7..29ae3619c5 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -46,3 +46,7 @@ lto = true [profile.bench] codegen-units = 1 lto = true + +[profile.release-with-debug] +inherits = "release" +debug = true \ No newline at end of file diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index b52096a01c..c8f72dc15d 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -5,7 +5,7 @@ edition = "2021" [features] default = [] -testing = ["tokio-stream"] +testing = ["tokio-stream", "rand"] [[bin]] name = "load_testing" @@ -22,6 +22,7 @@ tokio = { version = "1" } tokio-util = "0.7.2" tracing = "0.1.18" tokio-stream = { version = "0.1.8", optional = true } +rand = { version = "0.8.5", optional = true } [dev-dependencies] tokio = { version = "1", features = [ "io-util", "macros", "net", "rt" ] } diff --git a/muxink/src/bin/load_testing.rs b/muxink/src/bin/load_testing.rs index 676ec93c4b..72c52467bb 100644 --- a/muxink/src/bin/load_testing.rs +++ b/muxink/src/bin/load_testing.rs @@ -1,5 +1,94 @@ -use muxink; +use std::time::{Duration, Instant}; + +use futures::{FutureExt, SinkExt, StreamExt}; +use rand::{distributions::Standard, thread_rng, Rng}; + +use muxink::{self, testing::fixtures::TwoWayFixtures}; + +macro_rules! p { + ($start:expr, $($arg:tt)*) => {{ + let time = $start.elapsed().as_millis(); + print!("{time} - "); + println!($($arg)*); + }}; +} + +// This binary is useful for probing memory consumption of muxink. +// Probably you want `heaptrack` installed to run this. https://github.com/KDE/heaptrack +// +// Test with: +// ``` +// cargo build --profile release-with-debug --bin load_testing --features testing && \ +// heaptrack -o ~/heap ../target/release-with-debug/load_testing +// ``` fn main() { - println!("hello world"); + let s = Instant::now(); + p!(s, "started load_testing binary"); + + let message_size = 1024 * 1024 * 8; + let rand_bytes: Vec = thread_rng() + .sample_iter(Standard) + .take(message_size) + .collect(); + + futures::executor::block_on(async move { + test_ever_larger_buffers_matching_window_size(&s, rand_bytes.clone()).await; + test_cycling_full_buffer(&s, rand_bytes.clone(), 1, 1000).await; + test_cycling_full_buffer(&s, rand_bytes.clone(), 10, 100).await; + test_cycling_full_buffer(&s, rand_bytes.clone(), 100, 10).await; + }); + p!(s, "load_testing binary finished"); +} + +async fn test_ever_larger_buffers_matching_window_size(s: &Instant, rand_bytes: Vec) { + p!(s, "testing buffers (filled to window size)"); + for buffer_size in 1..100 { + let window_size = buffer_size as u64; + p!( + s, + "buffer size = {buffer_size}, expected mem consumption ~= {}", + rand_bytes.len() * buffer_size + ); + let TwoWayFixtures { + mut client, + mut server, + } = TwoWayFixtures::new_with_window(buffer_size, window_size); + for _message_sequence in 0..buffer_size { + client.send(rand_bytes.clone().into()).await.unwrap(); + } + for _message_sequence in 0..buffer_size { + server.next().now_or_never().unwrap(); + } + } +} + +async fn test_cycling_full_buffer( + s: &Instant, + rand_bytes: Vec, + buffer_size: usize, + cycles: u32, +) { + p!( + s, + "testing cycling buffers (fill to window size, then empty)" + ); + let window_size = buffer_size as u64; + p!( + s, + "buffer size = {buffer_size}, expected mem consumption ~= {}", + rand_bytes.len() * buffer_size + ); + let TwoWayFixtures { + mut client, + mut server, + } = TwoWayFixtures::new_with_window(buffer_size, window_size); + for cycles in 0..cycles { + for _message_sequence in 0..buffer_size { + client.send(rand_bytes.clone().into()).await.unwrap(); + } + for _message_sequence in 0..buffer_size { + server.next().now_or_never().unwrap(); + } + } } diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index efd622a5c1..7a6ec92e06 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -71,7 +71,8 @@ pub(crate) struct TestStream { } impl TestStream { - pub fn new(items: Vec) -> Self { + #[cfg(test)] + pub(crate) fn new(items: Vec) -> Self { TestStream { items: items.into(), finished: false, diff --git a/muxink/src/testing/fixtures.rs b/muxink/src/testing/fixtures.rs index 7863b37205..83a4981979 100644 --- a/muxink/src/testing/fixtures.rs +++ b/muxink/src/testing/fixtures.rs @@ -93,6 +93,10 @@ pub struct TwoWayFixtures { impl TwoWayFixtures { /// Creates a new set of two-way fixtures. pub fn new(size: usize) -> Self { + Self::new_with_window(size, WINDOW_SIZE) + } + /// Creates a new set of two-way fixtures with a specified window size. + pub fn new_with_window(size: usize, window_size: u64) -> Self { let (sink, stream) = setup_io_pipe::(size); let (ack_sink, ack_stream) = setup_io_pipe::(size); @@ -102,13 +106,13 @@ impl TwoWayFixtures { let boxed_ack_stream: Box> + Send + Unpin> = Box::new(ack_stream); - let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, WINDOW_SIZE); + let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, window_size); let boxed_stream: Box> + Send + Unpin> = Box::new(stream); let boxed_ack_sink: Box + Send + Unpin> = Box::new(ack_sink); - let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, WINDOW_SIZE); + let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, window_size); TwoWayFixtures { client, server } } diff --git a/muxink/src/testing/pipe.rs b/muxink/src/testing/pipe.rs index b418ba378c..bb9acd0754 100644 --- a/muxink/src/testing/pipe.rs +++ b/muxink/src/testing/pipe.rs @@ -151,7 +151,8 @@ impl AsyncWrite for WriteEnd { /// /// Dropping either end of the pipe will close it, causing writes to return broken pipe errors and /// reads to return successful 0-byte reads. -pub fn pipe() -> (WriteEnd, ReadEnd) { +#[cfg(test)] +pub(crate) fn pipe() -> (WriteEnd, ReadEnd) { let inner: Arc> = Default::default(); let read_end = ReadEnd { inner: inner.clone(), diff --git a/muxink/src/testing/testing_sink.rs b/muxink/src/testing/testing_sink.rs index 6d1eff3747..7ad3460ba4 100644 --- a/muxink/src/testing/testing_sink.rs +++ b/muxink/src/testing/testing_sink.rs @@ -12,7 +12,10 @@ use std::{ }; use bytes::Buf; -use futures::{FutureExt, Sink, SinkExt}; +use futures::{Sink, SinkExt}; + +#[cfg(test)] +use futures::FutureExt; /// A sink for unit testing. /// From dd3a8bf2bd12ca40f7096504584baf454cf053e9 Mon Sep 17 00:00:00 2001 From: Daniel Werner Date: Mon, 5 Dec 2022 07:23:36 -0800 Subject: [PATCH 279/735] remove extraneous 'src' node in muxink's Cargo.toml --- muxink/Cargo.toml | 1 - 1 file changed, 1 deletion(-) diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml index c8f72dc15d..2e9ee8e595 100644 --- a/muxink/Cargo.toml +++ b/muxink/Cargo.toml @@ -9,7 +9,6 @@ testing = ["tokio-stream", "rand"] [[bin]] name = "load_testing" -src = "bin/load_testing.rs" test = false bench = false required-features = ["testing"] From 5b34a44a07018256d832346d598af7b42c18b553 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 5 Jan 2023 17:17:01 +0100 Subject: [PATCH 280/735] Add `#[track_caller]` decorations to `settle_on` and `settle_on_indefinitely` functions --- node/src/testing/network.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index 45a395f53a..3f1628412b 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -265,6 +265,9 @@ where /// # Panics /// /// If the `condition` is not reached inside of `within`, panics. + // Note: `track_caller` will not have an effect until + // is fixed. + #[track_caller] pub(crate) async fn settle_on(&mut self, rng: &mut TestRng, condition: F, within: Duration) where F: Fn(&Nodes) -> bool, @@ -274,6 +277,7 @@ where .unwrap_or_else(|_| panic!("network did not settle on condition within {:?}", within)) } + #[track_caller] async fn settle_on_indefinitely(&mut self, rng: &mut TestRng, condition: F) where F: Fn(&Nodes) -> bool, From 91a9718f5d5b091bef647b95f769879f993b4f55 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 5 Jan 2023 17:36:33 +0100 Subject: [PATCH 281/735] Document `NODE_TEST_LOG=json` feature --- README.md | 2 ++ node/CHANGELOG.md | 1 + node/src/logging.rs | 12 +++++++++++- 3 files changed, 14 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 0913e0bb9a..2a5c8f9b27 100644 --- a/README.md +++ b/README.md @@ -128,6 +128,8 @@ RUST_LOG=info cargo run --release -- validator resources/local/config.toml If the environment variable is unset, it is equivalent to setting `RUST_LOG=error`. +When developing and running unit tests, setting `NODE_TEST_LOG=json` will cause the log messages produced by the tests to be JSON-formatted. + ### Log message format A typical log message will look like: diff --git a/node/CHANGELOG.md b/node/CHANGELOG.md index 5037508e10..46ed08caf3 100644 --- a/node/CHANGELOG.md +++ b/node/CHANGELOG.md @@ -53,6 +53,7 @@ All notable changes to this project will be documented in this file. The format * Add an `identity` option to load existing network identity certificates signed by a CA. * TLS connection keys can now be logged using the `network.keylog_location` setting (similar to `SSLKEYLOGFILE` envvar found in other applications). * Add a `lock_status` field to the JSON representation of the `ContractPackage` values. +* Unit tests can be run with JSON log output by setting a `NODE_TEST_LOG=json` environment variable. ### Changed * Detection of a crash no longer triggers DB integrity checks to run on node start; the checks can be triggered manually instead. diff --git a/node/src/logging.rs b/node/src/logging.rs index a86ef4efbc..8ff2aafeb9 100644 --- a/node/src/logging.rs +++ b/node/src/logging.rs @@ -265,7 +265,17 @@ where /// See `init_params` for details. #[cfg(test)] pub fn init() -> anyhow::Result<()> { - init_with_config(&Default::default()) + let mut cfg = LoggingConfig::default(); + + // The `NODE_TEST_LOG` environment variable can be used to specify JSON output when testing. + match env::var("NODE_TEST_LOG") { + Ok(s) if s == "json" => { + cfg.format = LoggingFormat::Json; + } + _ => (), + } + + init_with_config(&cfg) } /// A handle for reloading the logger. From 868856d7c650310e7b39ecb0db052e7ece90b58b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 6 Jan 2023 15:04:28 +0100 Subject: [PATCH 282/735] Track one `Span` per testing network node, even for background tasks and before a node ID is available --- node/src/testing/network.rs | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index 3f1628412b..c8f495a5c2 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -12,7 +12,7 @@ use fake_instant::FakeClock as Instant; use futures::future::{BoxFuture, FutureExt}; use serde::Serialize; use tokio::time; -use tracing::{debug, error_span}; +use tracing::{debug, error_span, field, Span}; use tracing_futures::Instrument; use super::ConditionCheckReactor; @@ -58,6 +58,8 @@ const POLL_INTERVAL: Duration = Duration::from_millis(10); pub(crate) struct Network { /// Current network. nodes: HashMap>>, + /// Mapping of node IDs to spans. + spans: HashMap, } impl Network @@ -102,6 +104,7 @@ where pub(crate) fn new() -> Self { Network { nodes: HashMap::new(), + spans: HashMap::new(), } } @@ -115,9 +118,15 @@ where cfg: R::Config, rng: &'b mut NodeRng, ) -> Result<(NodeId, &mut Runner>), R::Error> { - let runner: Runner> = Runner::new(cfg, rng).await?; + let node_idx = self.nodes.len(); + let span = error_span!("node", node_idx, node_id = field::Empty); + + let runner: Runner> = + Runner::new(cfg, rng).instrument(span.clone()).await?; let node_id = runner.reactor().node_id(); + span.record("node_id", field::display(node_id)); + self.spans.insert(node_id, span.clone()); let node_ref = match self.nodes.entry(node_id) { Entry::Occupied(_) => { @@ -144,9 +153,10 @@ where let runner = self.nodes.get_mut(node_id).expect("should find node"); let node_id = runner.reactor().node_id(); + let span = self.spans.get(&node_id).expect("should find span"); if runner .try_crank(rng) - .instrument(error_span!("crank", node_id = %node_id)) + .instrument(span.clone()) .await .is_some() { @@ -205,12 +215,8 @@ where let mut event_count = 0; for node in self.nodes.values_mut() { let node_id = node.reactor().node_id(); - event_count += if node - .try_crank(rng) - .instrument(error_span!("crank", node_id = %node_id)) - .await - .is_some() - { + let span = self.spans.get(&node_id).expect("span disappeared").clone(); + event_count += if node.try_crank(rng).instrument(span).await.is_some() { 1 } else { 0 From b28face71c61f71a5bbecb4ec7d2c71fd863c893 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 6 Jan 2023 16:06:44 +0100 Subject: [PATCH 283/735] Improve trace level loggign (and info in testing) around sending of network messages --- node/src/components/small_network.rs | 1 + node/src/components/small_network/tasks.rs | 2 +- node/src/components/small_network/tests.rs | 12 +++++++++++- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index 141818c52a..ed64727a39 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -476,6 +476,7 @@ where // The `AutoClosingResponder` will respond by itself. return; }; + trace!(%msg, encoded_size=payload.len(), %channel, "enqueued message for sending"); let send_token = TokenizedCount::new(self.net_metrics.queued_messages.clone()); diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index 00082117d7..e935f357bf 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -472,7 +472,7 @@ where let msg: Message

= deserialize_network_message(&frame) .map_err(MessageReaderError::DeserializationError)?; - trace!(%msg, "message received"); + trace!(%msg, %channel, "message received"); // TODO: Re-add support for demands when backpressure is added. diff --git a/node/src/components/small_network/tests.rs b/node/src/components/small_network/tests.rs index 9c262f1c13..fa0b5f0905 100644 --- a/node/src/components/small_network/tests.rs +++ b/node/src/components/small_network/tests.rs @@ -430,7 +430,12 @@ async fn check_varying_size_network_connects() { let mut rng = crate::new_rng(); // Try with a few predefined sets of network sizes. - for &number_of_nodes in &[2u16, 3, 5, 9, 15] { + // for &number_of_nodes in &[2u16, 3, 5, 9, 15] { + for &number_of_nodes in &[3u16] { + info!( + number_of_nodes, + "begin varying size network connection test" + ); let timeout = Duration::from_secs(3 * number_of_nodes as u64); let mut net = Network::new(); @@ -472,6 +477,11 @@ async fn check_varying_size_network_connects() { // This test will run multiple times, so ensure we cleanup all ports. net.finalize().await; + + info!( + number_of_nodes, + "finished varying size network connection test" + ); } } From 25da69e277600d2bac8fade1b1b0a87382808871 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 13:37:33 +0100 Subject: [PATCH 284/735] muxink: Add smoke test for `TestStream` --- muxink/src/testing.rs | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 7a6ec92e06..63a04e5f76 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -103,3 +103,19 @@ impl Stream for TestStream { } } } + +mod stream_tests { + use futures::StreamExt; + + use crate::testing::TestStream; + + #[tokio::test] + async fn smoke_test() { + let mut stream = TestStream::new(vec![1, 2, 3]); + + assert_eq!(stream.next().await, Some(1)); + assert_eq!(stream.next().await, Some(2)); + assert_eq!(stream.next().await, Some(3)); + assert_eq!(stream.next().await, None); + } +} From 5a8bd9c403d04082ebcc99c8b01bd99076f864ba Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 13:39:56 +0100 Subject: [PATCH 285/735] Make `TestStream` take an `IntoIterator` instead of `Vec` --- muxink/src/testing.rs | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 63a04e5f76..4cf3c82293 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -71,10 +71,11 @@ pub(crate) struct TestStream { } impl TestStream { + /// Creates a new stream for testing. #[cfg(test)] - pub(crate) fn new(items: Vec) -> Self { + pub(crate) fn new>(items: I) -> Self { TestStream { - items: items.into(), + items: items.into_iter().collect(), finished: false, } } @@ -111,7 +112,7 @@ mod stream_tests { #[tokio::test] async fn smoke_test() { - let mut stream = TestStream::new(vec![1, 2, 3]); + let mut stream = TestStream::new([1, 2, 3]); assert_eq!(stream.next().await, Some(1)); assert_eq!(stream.next().await, Some(2)); From 2953254541e9467a5382b276e28a8f88c5a03327 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 13:40:31 +0100 Subject: [PATCH 286/735] muxink: Support pausing a `TestStream` --- muxink/src/testing.rs | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 4cf3c82293..0e34e0382a 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -12,7 +12,7 @@ use std::{ marker::Unpin, pin::Pin, result::Result, - task::{Context, Poll}, + task::{Context, Poll, Waker}, }; use bytes::Buf; @@ -64,10 +64,14 @@ where // streams says that in general it is not safe, so it is important to test // using a stream which has this property as well. pub(crate) struct TestStream { - // The items which will be returned by the stream in reverse order + /// The items which will be returned by the stream in reverse order items: VecDeque, - // Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] + /// Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] finished: bool, + /// Whether the stream should return [`Poll::Pending`] at the moment. + paused: bool, + /// The waker to reawake the stream after unpausing. + waker: Option, } impl TestStream { @@ -77,8 +81,22 @@ impl TestStream { TestStream { items: items.into_iter().collect(), finished: false, + paused: false, + waker: None, } } + + /// Sets the paused state of the stream. + /// + /// A waker will be called if the stream transitioned from paused to unpaused. + pub(crate) fn set_paused(&mut self, paused: bool) { + if self.paused && !paused { + if let Some(waker) = self.waker.take() { + waker.wake(); + } + } + self.paused = paused; + } } // We implement Unpin because of the constraint in the implementation of the @@ -88,7 +106,12 @@ impl Unpin for TestStream {} impl Stream for TestStream { type Item = T; - fn poll_next(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + if self.paused { + self.waker = Some(cx.waker().clone()); + return Poll::Pending; + } + // Panic if we've already emitted [`Poll::Ready(None)`] if self.finished { panic!("polled a TestStream after completion"); From 957877de9682cf35a07b9b5617696a5324de2f9e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 13:43:45 +0100 Subject: [PATCH 287/735] muxink: Add test for core promise of `TestStream`, namely that it panics if polled after `Pending::Ready(_)` --- muxink/src/testing.rs | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 0e34e0382a..784785805e 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -142,4 +142,15 @@ mod stream_tests { assert_eq!(stream.next().await, Some(3)); assert_eq!(stream.next().await, None); } + + #[tokio::test] + #[should_panic(expected = "polled a TestStream after completion")] + async fn stream_panics_if_polled_after_ready() { + let mut stream = TestStream::new([1, 2, 3]); + stream.next().await; + stream.next().await; + stream.next().await; + stream.next().await; + stream.next().await; + } } From bd7ba8d1a2bc436de72828a1eeb0b8747c62b716 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 14:25:18 +0100 Subject: [PATCH 288/735] muxink: Factor out `StreamControl` and test pausability of `TestStream` --- muxink/src/testing.rs | 41 +++++++++++++++++++++++++++++++++-------- 1 file changed, 33 insertions(+), 8 deletions(-) diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 784785805e..fb14c20e13 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -68,6 +68,12 @@ pub(crate) struct TestStream { items: VecDeque, /// Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] finished: bool, + control: StreamControl, +} + +/// Stream control for pausing and unpausing. +#[derive(Debug, Default)] +struct StreamControl { /// Whether the stream should return [`Poll::Pending`] at the moment. paused: bool, /// The waker to reawake the stream after unpausing. @@ -81,8 +87,7 @@ impl TestStream { TestStream { items: items.into_iter().collect(), finished: false, - paused: false, - waker: None, + control: Default::default(), } } @@ -90,12 +95,12 @@ impl TestStream { /// /// A waker will be called if the stream transitioned from paused to unpaused. pub(crate) fn set_paused(&mut self, paused: bool) { - if self.paused && !paused { - if let Some(waker) = self.waker.take() { + if self.control.paused && !paused { + if let Some(waker) = self.control.waker.take() { waker.wake(); } } - self.paused = paused; + self.control.paused = paused; } } @@ -107,8 +112,8 @@ impl Stream for TestStream { type Item = T; fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - if self.paused { - self.waker = Some(cx.waker().clone()); + if self.control.paused { + self.control.waker = Some(cx.waker().clone()); return Poll::Pending; } @@ -129,7 +134,7 @@ impl Stream for TestStream { } mod stream_tests { - use futures::StreamExt; + use futures::{FutureExt, StreamExt}; use crate::testing::TestStream; @@ -153,4 +158,24 @@ mod stream_tests { stream.next().await; stream.next().await; } + + #[test] + fn stream_can_be_paused() { + let mut stream = TestStream::new([1, 2, 3]); + + assert_eq!( + stream.next().now_or_never().expect("should be ready"), + Some(1) + ); + + stream.set_paused(true); + assert!(stream.next().now_or_never().is_none()); + assert!(stream.next().now_or_never().is_none()); + stream.set_paused(false); + + assert_eq!( + stream.next().now_or_never().expect("should be ready"), + Some(2) + ); + } } From 2aa51b6eeb3cc370594997ccc530c06e140940af Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 14:26:31 +0100 Subject: [PATCH 289/735] muxink: Rename `TestStream` to `TestingStream` --- muxink/src/demux.rs | 20 +++++++++++++++----- muxink/src/testing.rs | 18 +++++++++--------- 2 files changed, 24 insertions(+), 14 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 526bac93ac..af128962c1 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -244,7 +244,7 @@ where mod tests { use std::io::Error as IoError; - use crate::testing::TestStream; + use crate::testing::TestingStream; use super::*; use bytes::BytesMut; @@ -264,7 +264,7 @@ mod tests { #[test] fn channel_activation() { let items: Vec>> = vec![]; - let stream = TestStream::new(items); + let stream = TestingStream::new(items); let mut demux = Demultiplexer::new(stream); let examples: Vec = (0u8..255u8).collect(); @@ -293,7 +293,7 @@ mod tests { .into_iter() .map(Result::Ok) .collect(); - let stream = TestStream::new(items); + let stream = TestingStream::new(items); let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); // We make two handles, one for the 0 channel and another for the 1 channel @@ -374,7 +374,7 @@ mod tests { #[test] fn single_handle_per_channel() { - let stream: TestStream<()> = TestStream::new(Vec::new()); + let stream: TestingStream<()> = TestingStream::new(Vec::new()); let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); // Creating a handle for a channel works. @@ -386,6 +386,16 @@ mod tests { assert!(Demultiplexer::create_handle::(demux, 1).is_ok()); } + // #[test] + // fn all_channels_pending_initially() { + // let stream: TestStream<()> = TestStream::new(Vec::new()); + // let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); + + // let zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); + + // let one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); + // } + #[tokio::test] async fn concurrent_channels_on_different_tasks() { let items: Vec>> = [ @@ -401,7 +411,7 @@ mod tests { .into_iter() .map(Result::Ok) .collect(); - let stream = TestStream::new(items); + let stream = TestingStream::new(items); let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); let handle_0 = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index fb14c20e13..e6431bb55e 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -63,7 +63,7 @@ where // [`Poll::Ready(None)`], whereas many other streams are. The interface for // streams says that in general it is not safe, so it is important to test // using a stream which has this property as well. -pub(crate) struct TestStream { +pub(crate) struct TestingStream { /// The items which will be returned by the stream in reverse order items: VecDeque, /// Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] @@ -80,11 +80,11 @@ struct StreamControl { waker: Option, } -impl TestStream { +impl TestingStream { /// Creates a new stream for testing. #[cfg(test)] pub(crate) fn new>(items: I) -> Self { - TestStream { + TestingStream { items: items.into_iter().collect(), finished: false, control: Default::default(), @@ -106,9 +106,9 @@ impl TestStream { // We implement Unpin because of the constraint in the implementation of the // `DemultiplexerHandle`. -impl Unpin for TestStream {} +impl Unpin for TestingStream {} -impl Stream for TestStream { +impl Stream for TestingStream { type Item = T; fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -136,11 +136,11 @@ impl Stream for TestStream { mod stream_tests { use futures::{FutureExt, StreamExt}; - use crate::testing::TestStream; + use crate::testing::TestingStream; #[tokio::test] async fn smoke_test() { - let mut stream = TestStream::new([1, 2, 3]); + let mut stream = TestingStream::new([1, 2, 3]); assert_eq!(stream.next().await, Some(1)); assert_eq!(stream.next().await, Some(2)); @@ -151,7 +151,7 @@ mod stream_tests { #[tokio::test] #[should_panic(expected = "polled a TestStream after completion")] async fn stream_panics_if_polled_after_ready() { - let mut stream = TestStream::new([1, 2, 3]); + let mut stream = TestingStream::new([1, 2, 3]); stream.next().await; stream.next().await; stream.next().await; @@ -161,7 +161,7 @@ mod stream_tests { #[test] fn stream_can_be_paused() { - let mut stream = TestStream::new([1, 2, 3]); + let mut stream = TestingStream::new([1, 2, 3]); assert_eq!( stream.next().now_or_never().expect("should be ready"), From ed47e2aabea5cf3c3c10f42e506972caa0d0207a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 15:19:02 +0100 Subject: [PATCH 290/735] muxink: Add test and control to wake up `TestingStream` clients --- muxink/src/demux.rs | 10 ----- muxink/src/testing.rs | 89 ++++++++++++++++++++++++++++++++++--------- 2 files changed, 71 insertions(+), 28 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index af128962c1..60c89385ed 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -386,16 +386,6 @@ mod tests { assert!(Demultiplexer::create_handle::(demux, 1).is_ok()); } - // #[test] - // fn all_channels_pending_initially() { - // let stream: TestStream<()> = TestStream::new(Vec::new()); - // let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); - - // let zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); - - // let one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); - // } - #[tokio::test] async fn concurrent_channels_on_different_tasks() { let items: Vec>> = [ diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index e6431bb55e..cde6d6819c 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -12,6 +12,7 @@ use std::{ marker::Unpin, pin::Pin, result::Result, + sync::{Arc, Mutex}, task::{Context, Poll, Waker}, }; @@ -63,26 +64,53 @@ where // [`Poll::Ready(None)`], whereas many other streams are. The interface for // streams says that in general it is not safe, so it is important to test // using a stream which has this property as well. +#[derive(Debug)] pub(crate) struct TestingStream { /// The items which will be returned by the stream in reverse order items: VecDeque, /// Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] finished: bool, - control: StreamControl, + /// Control object for stream. + control: Arc>, } +/// A reference to a testing stream. +#[derive(Debug)] +pub(crate) struct StreamControlRef(Arc>); + /// Stream control for pausing and unpausing. #[derive(Debug, Default)] -struct StreamControl { +pub(crate) struct StreamControl { /// Whether the stream should return [`Poll::Pending`] at the moment. paused: bool, /// The waker to reawake the stream after unpausing. waker: Option, } +impl StreamControlRef { + /// Pauses the stream. + /// + /// Subsequent polling of the stream will result in `Pending` being returned. + pub(crate) fn pause(&self) { + let mut guard = self.0.lock().expect("stream control poisoned"); + guard.paused = true; + } + + /// Unpauses the stream. + /// + /// Causes the stream to resume. If it was paused, any waiting tasks will be woken up. + pub(crate) fn unpause(&self) { + let mut guard = self.0.lock().expect("stream control poisoned"); + + if let Some(waker) = guard.waker.take() { + waker.wake(); + } + guard.paused = false; + } +} + impl TestingStream { /// Creates a new stream for testing. - #[cfg(test)] pub(crate) fn new>(items: I) -> Self { TestingStream { items: items.into_iter().collect(), @@ -91,30 +119,28 @@ impl TestingStream { } } - /// Sets the paused state of the stream. - /// - /// A waker will be called if the stream transitioned from paused to unpaused. - pub(crate) fn set_paused(&mut self, paused: bool) { - if self.control.paused && !paused { - if let Some(waker) = self.control.waker.take() { - waker.wake(); - } - } - self.control.paused = paused; + /// Creates a new reference to the testing stream controls. + pub(crate) fn control(&self) -> StreamControlRef { + StreamControlRef(self.control.clone()) } } // We implement Unpin because of the constraint in the implementation of the // `DemultiplexerHandle`. +// TODO: Remove this. impl Unpin for TestingStream {} impl Stream for TestingStream { type Item = T; fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - if self.control.paused { - self.control.waker = Some(cx.waker().clone()); - return Poll::Pending; + { + let mut guard = self.control.lock().expect("stream control poisoned"); + + if guard.paused { + guard.waker = Some(cx.waker().clone()); + return Poll::Pending; + } } // Panic if we've already emitted [`Poll::Ready(None)`] @@ -134,6 +160,8 @@ impl Stream for TestingStream { } mod stream_tests { + use std::time::Duration; + use futures::{FutureExt, StreamExt}; use crate::testing::TestingStream; @@ -168,14 +196,39 @@ mod stream_tests { Some(1) ); - stream.set_paused(true); + stream.control().pause(); assert!(stream.next().now_or_never().is_none()); assert!(stream.next().now_or_never().is_none()); - stream.set_paused(false); + stream.control().unpause(); assert_eq!( stream.next().now_or_never().expect("should be ready"), Some(2) ); } + + #[tokio::test] + async fn stream_unpausing_wakes_up_test_stream() { + let mut stream = TestingStream::new([1, 2, 3]); + let ctrl = stream.control(); + ctrl.pause(); + + let reader = tokio::spawn(async move { + stream.next().await; + stream.next().await; + stream.next().await; + assert!(stream.next().await.is_none()); + }); + + // Allow for a little bit of time for the reader to block. + tokio::time::sleep(Duration::from_millis(50)).await; + + ctrl.unpause(); + + // After unpausing, the reader should be able to finish. + tokio::time::timeout(Duration::from_secs(1), reader) + .await + .expect("should not timeout") + .expect("should join successfully"); + } } From 2c6ebfc8b4c8087fbbac99e1f800c7a20ce30261 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 15:44:30 +0100 Subject: [PATCH 291/735] muxink: Move `TestingStream` to its own submodule --- muxink/src/demux.rs | 2 +- muxink/src/testing.rs | 185 +-------------------------- muxink/src/testing/testing_stream.rs | 177 +++++++++++++++++++++++++ 3 files changed, 180 insertions(+), 184 deletions(-) create mode 100644 muxink/src/testing/testing_stream.rs diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 60c89385ed..9570a4eb1a 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -244,7 +244,7 @@ where mod tests { use std::io::Error as IoError; - use crate::testing::TestingStream; + use crate::testing::testing_stream::TestingStream; use super::*; use bytes::BytesMut; diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index cde6d6819c..9e5b874b8f 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -4,17 +4,9 @@ pub mod encoding; pub mod fixtures; pub mod pipe; pub mod testing_sink; +pub mod testing_stream; -use std::{ - collections::VecDeque, - fmt::Debug, - io::Read, - marker::Unpin, - pin::Pin, - result::Result, - sync::{Arc, Mutex}, - task::{Context, Poll, Waker}, -}; +use std::{fmt::Debug, io::Read, result::Result}; use bytes::Buf; use futures::{FutureExt, Stream, StreamExt}; @@ -59,176 +51,3 @@ where .collect::>() .expect("error in stream results") } - -// This stream is used because it is not safe to call it after it returns -// [`Poll::Ready(None)`], whereas many other streams are. The interface for -// streams says that in general it is not safe, so it is important to test -// using a stream which has this property as well. -#[derive(Debug)] -pub(crate) struct TestingStream { - /// The items which will be returned by the stream in reverse order - items: VecDeque, - /// Once this is set to true, this `Stream` will panic upon calling [`Stream::poll_next`] - finished: bool, - /// Control object for stream. - control: Arc>, -} - -/// A reference to a testing stream. -#[derive(Debug)] -pub(crate) struct StreamControlRef(Arc>); - -/// Stream control for pausing and unpausing. -#[derive(Debug, Default)] -pub(crate) struct StreamControl { - /// Whether the stream should return [`Poll::Pending`] at the moment. - paused: bool, - /// The waker to reawake the stream after unpausing. - waker: Option, -} - -impl StreamControlRef { - /// Pauses the stream. - /// - /// Subsequent polling of the stream will result in `Pending` being returned. - pub(crate) fn pause(&self) { - let mut guard = self.0.lock().expect("stream control poisoned"); - guard.paused = true; - } - - /// Unpauses the stream. - /// - /// Causes the stream to resume. If it was paused, any waiting tasks will be woken up. - pub(crate) fn unpause(&self) { - let mut guard = self.0.lock().expect("stream control poisoned"); - - if let Some(waker) = guard.waker.take() { - waker.wake(); - } - guard.paused = false; - } -} - -impl TestingStream { - /// Creates a new stream for testing. - pub(crate) fn new>(items: I) -> Self { - TestingStream { - items: items.into_iter().collect(), - finished: false, - control: Default::default(), - } - } - - /// Creates a new reference to the testing stream controls. - pub(crate) fn control(&self) -> StreamControlRef { - StreamControlRef(self.control.clone()) - } -} - -// We implement Unpin because of the constraint in the implementation of the -// `DemultiplexerHandle`. -// TODO: Remove this. -impl Unpin for TestingStream {} - -impl Stream for TestingStream { - type Item = T; - - fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - { - let mut guard = self.control.lock().expect("stream control poisoned"); - - if guard.paused { - guard.waker = Some(cx.waker().clone()); - return Poll::Pending; - } - } - - // Panic if we've already emitted [`Poll::Ready(None)`] - if self.finished { - panic!("polled a TestStream after completion"); - } - if let Some(t) = self.items.pop_front() { - Poll::Ready(Some(t)) - } else { - // Before we return None, make sure we set finished to true so that calling this - // again will result in a panic, as the specification for `Stream` tells us is - // possible with an arbitrary implementation. - self.finished = true; - Poll::Ready(None) - } - } -} - -mod stream_tests { - use std::time::Duration; - - use futures::{FutureExt, StreamExt}; - - use crate::testing::TestingStream; - - #[tokio::test] - async fn smoke_test() { - let mut stream = TestingStream::new([1, 2, 3]); - - assert_eq!(stream.next().await, Some(1)); - assert_eq!(stream.next().await, Some(2)); - assert_eq!(stream.next().await, Some(3)); - assert_eq!(stream.next().await, None); - } - - #[tokio::test] - #[should_panic(expected = "polled a TestStream after completion")] - async fn stream_panics_if_polled_after_ready() { - let mut stream = TestingStream::new([1, 2, 3]); - stream.next().await; - stream.next().await; - stream.next().await; - stream.next().await; - stream.next().await; - } - - #[test] - fn stream_can_be_paused() { - let mut stream = TestingStream::new([1, 2, 3]); - - assert_eq!( - stream.next().now_or_never().expect("should be ready"), - Some(1) - ); - - stream.control().pause(); - assert!(stream.next().now_or_never().is_none()); - assert!(stream.next().now_or_never().is_none()); - stream.control().unpause(); - - assert_eq!( - stream.next().now_or_never().expect("should be ready"), - Some(2) - ); - } - - #[tokio::test] - async fn stream_unpausing_wakes_up_test_stream() { - let mut stream = TestingStream::new([1, 2, 3]); - let ctrl = stream.control(); - ctrl.pause(); - - let reader = tokio::spawn(async move { - stream.next().await; - stream.next().await; - stream.next().await; - assert!(stream.next().await.is_none()); - }); - - // Allow for a little bit of time for the reader to block. - tokio::time::sleep(Duration::from_millis(50)).await; - - ctrl.unpause(); - - // After unpausing, the reader should be able to finish. - tokio::time::timeout(Duration::from_secs(1), reader) - .await - .expect("should not timeout") - .expect("should join successfully"); - } -} diff --git a/muxink/src/testing/testing_stream.rs b/muxink/src/testing/testing_stream.rs new file mode 100644 index 0000000000..93c12eeed2 --- /dev/null +++ b/muxink/src/testing/testing_stream.rs @@ -0,0 +1,177 @@ +/// Generic testing stream. +use std::{ + collections::VecDeque, + pin::Pin, + sync::{Arc, Mutex}, + task::{Context, Poll, Waker}, + time::Duration, +}; + +use futures::{FutureExt, Stream, StreamExt}; + +/// A testing stream that returns predetermined items. +/// +/// Returns [`Poll::Ready(None)`] only once, subsequent polling after it has finished will result +/// in a panic. +/// +/// Can be paused via [`StreamControl::pause`]. +#[derive(Debug)] +pub(crate) struct TestingStream { + /// The items to be returned by the stream. + items: VecDeque, + /// Indicates the stream has finished, causing subsequent polls to panic. + finished: bool, + /// Control object for stream. + control: Arc>, +} + +/// A reference to a testing stream. +#[derive(Debug)] +pub(crate) struct StreamControlRef(Arc>); + +/// Stream control for pausing and unpausing. +#[derive(Debug, Default)] +pub(crate) struct StreamControl { + /// Whether the stream should return [`Poll::Pending`] at the moment. + paused: bool, + /// The waker to reawake the stream after unpausing. + waker: Option, +} + +impl StreamControlRef { + /// Pauses the stream. + /// + /// Subsequent polling of the stream will result in `Pending` being returned. + pub(crate) fn pause(&self) { + let mut guard = self.0.lock().expect("stream control poisoned"); + guard.paused = true; + } + + /// Unpauses the stream. + /// + /// Causes the stream to resume. If it was paused, any waiting tasks will be woken up. + pub(crate) fn unpause(&self) { + let mut guard = self.0.lock().expect("stream control poisoned"); + + if let Some(waker) = guard.waker.take() { + waker.wake(); + } + guard.paused = false; + } +} + +impl TestingStream { + /// Creates a new stream for testing. + pub(crate) fn new>(items: I) -> Self { + TestingStream { + items: items.into_iter().collect(), + finished: false, + control: Default::default(), + } + } + + /// Creates a new reference to the testing stream controls. + pub(crate) fn control(&self) -> StreamControlRef { + StreamControlRef(self.control.clone()) + } +} + +// We implement Unpin because of the constraint in the implementation of the +// `DemultiplexerHandle`. +// TODO: Remove this. +impl Unpin for TestingStream {} + +impl Stream for TestingStream { + type Item = T; + + fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + { + let mut guard = self.control.lock().expect("stream control poisoned"); + + if guard.paused { + guard.waker = Some(cx.waker().clone()); + return Poll::Pending; + } + } + + // Panic if we've already emitted [`Poll::Ready(None)`] + if self.finished { + panic!("polled a TestStream after completion"); + } + if let Some(t) = self.items.pop_front() { + Poll::Ready(Some(t)) + } else { + // Before we return None, make sure we set finished to true so that calling this + // again will result in a panic, as the specification for `Stream` tells us is + // possible with an arbitrary implementation. + self.finished = true; + Poll::Ready(None) + } + } +} + +#[tokio::test] +async fn smoke_test() { + let mut stream = TestingStream::new([1, 2, 3]); + + assert_eq!(stream.next().await, Some(1)); + assert_eq!(stream.next().await, Some(2)); + assert_eq!(stream.next().await, Some(3)); + assert_eq!(stream.next().await, None); +} + +#[tokio::test] +#[should_panic(expected = "polled a TestStream after completion")] +async fn stream_panics_if_polled_after_ready() { + let mut stream = TestingStream::new([1, 2, 3]); + stream.next().await; + stream.next().await; + stream.next().await; + stream.next().await; + stream.next().await; +} + +#[test] +fn stream_can_be_paused() { + let mut stream = TestingStream::new([1, 2, 3]); + + assert_eq!( + stream.next().now_or_never().expect("should be ready"), + Some(1) + ); + + stream.control().pause(); + assert!(stream.next().now_or_never().is_none()); + assert!(stream.next().now_or_never().is_none()); + stream.control().unpause(); + + assert_eq!( + stream.next().now_or_never().expect("should be ready"), + Some(2) + ); +} + +#[tokio::test] +async fn stream_unpausing_wakes_up_test_stream() { + let mut stream = TestingStream::new([1, 2, 3]); + let ctrl = stream.control(); + ctrl.pause(); + + let reader = tokio::spawn(async move { + stream.next().await; + stream.next().await; + stream.next().await; + assert!(stream.next().await.is_none()); + }); + + // Allow for a little bit of time for the reader to block. + tokio::time::sleep(Duration::from_millis(50)).await; + + ctrl.unpause(); + + // After unpausing, the reader should be able to finish. + tokio::time::timeout(Duration::from_secs(1), reader) + .await + .expect("should not timeout") + .expect("should join successfully"); +} From f0494e1806b4cd4d3cae1aed5b492c71a8d47404 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 15:46:45 +0100 Subject: [PATCH 292/735] Remove problematic `Unpin` `impl` from `TestingStream` --- muxink/src/testing/testing_stream.rs | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/muxink/src/testing/testing_stream.rs b/muxink/src/testing/testing_stream.rs index 93c12eeed2..bf4855788d 100644 --- a/muxink/src/testing/testing_stream.rs +++ b/muxink/src/testing/testing_stream.rs @@ -76,15 +76,13 @@ impl TestingStream { } } -// We implement Unpin because of the constraint in the implementation of the -// `DemultiplexerHandle`. -// TODO: Remove this. -impl Unpin for TestingStream {} - -impl Stream for TestingStream { +impl Stream for TestingStream +where + T: Unpin, +{ type Item = T; - fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { { let mut guard = self.control.lock().expect("stream control poisoned"); @@ -94,17 +92,19 @@ impl Stream for TestingStream { } } + let mut self_mut = Pin::into_inner(self); + // Panic if we've already emitted [`Poll::Ready(None)`] - if self.finished { + if self_mut.finished { panic!("polled a TestStream after completion"); } - if let Some(t) = self.items.pop_front() { + if let Some(t) = self_mut.items.pop_front() { Poll::Ready(Some(t)) } else { // Before we return None, make sure we set finished to true so that calling this // again will result in a panic, as the specification for `Stream` tells us is // possible with an arbitrary implementation. - self.finished = true; + self_mut.finished = true; Poll::Ready(None) } } From f087ab3fc12a21e2cf86d7ee3825ef62cf63191d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 23:32:42 +0100 Subject: [PATCH 293/735] Add regression test for issue where all channels start off waiting --- muxink/src/demux.rs | 40 +++++++++++++++++++++-- muxink/src/testing.rs | 74 +++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 110 insertions(+), 4 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 9570a4eb1a..87fde3b00e 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -242,9 +242,9 @@ where #[cfg(test)] mod tests { - use std::io::Error as IoError; + use std::{io::Error as IoError, time::Duration}; - use crate::testing::testing_stream::TestingStream; + use crate::testing::{testing_stream::TestingStream, BackgroundTask}; use super::*; use bytes::BytesMut; @@ -386,6 +386,42 @@ mod tests { assert!(Demultiplexer::create_handle::(demux, 1).is_ok()); } + #[tokio::test] + async fn all_channels_pending_initially_causes_correct_wakeups() { + // Load up a single message for channel 1. + let items: Vec>> = + vec![Ok(Bytes::from_static(&[0x01, 0xFF]))]; + let stream = TestingStream::new(items); + let ctrl = stream.control(); + + ctrl.pause(); + + let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); + + let mut zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); + let mut one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); + + let zero_reader = BackgroundTask::spawn(async move { zero_handle.next().await }); + let one_reader = BackgroundTask::spawn(async move { one_handle.next().await }); + + // Sleep for 100 ms to give the background tasks plenty of time to start and block. + tokio::time::sleep(Duration::from_millis(100)).await; + assert!(zero_reader.is_running()); + assert!(one_reader.is_running()); + + // Both should be stuck, since the stream is paused. We can unpause it, wait and + // `one_reader` should be woken up and finish. Shortly after, `zero_reader` will have + // finished as well. + ctrl.unpause(); + tokio::time::sleep(Duration::from_millis(100)).await; + + assert!(zero_reader.has_finished()); + assert!(one_reader.has_finished()); + + assert!(zero_reader.retrieve_output().await.is_none()); + assert!(one_reader.retrieve_output().await.is_some()); + } + #[tokio::test] async fn concurrent_channels_on_different_tasks() { let items: Vec>> = [ diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs index 9e5b874b8f..ec495c689d 100644 --- a/muxink/src/testing.rs +++ b/muxink/src/testing.rs @@ -6,10 +6,19 @@ pub mod pipe; pub mod testing_sink; pub mod testing_stream; -use std::{fmt::Debug, io::Read, result::Result}; +use std::{ + fmt::Debug, + io::Read, + result::Result, + sync::{ + atomic::{AtomicBool, Ordering}, + Arc, + }, +}; use bytes::Buf; -use futures::{FutureExt, Stream, StreamExt}; +use futures::{Future, FutureExt, Stream, StreamExt}; +use tokio::task::JoinHandle; // In tests use small value to make sure that we correctly merge data that was polled from the // stream in small fragments. @@ -51,3 +60,64 @@ where .collect::>() .expect("error in stream results") } + +/// A background task that can be asked whether it has completed or not. +#[derive(Debug)] +pub(crate) struct BackgroundTask { + /// Join handle for the background task. + join_handle: JoinHandle, + /// Indicates the task has started. + started: Arc, + /// Indicates the task has finished. + ended: Arc, +} + +impl BackgroundTask +where + T: Send, +{ + /// Spawns a new background task. + pub(crate) fn spawn(fut: F) -> Self + where + F: Future + Send + 'static, + T: 'static, + { + let started = Arc::new(AtomicBool::new(false)); + let ended = Arc::new(AtomicBool::new(false)); + + let (s, e) = (started.clone(), ended.clone()); + let join_handle = tokio::spawn(async move { + s.store(true, Ordering::SeqCst); + let rv = fut.await; + e.store(true, Ordering::SeqCst); + + rv + }); + + BackgroundTask { + join_handle, + started, + ended, + } + } + + /// Returns whether or not the task has finished. + pub(crate) fn has_finished(&self) -> bool { + self.ended.load(Ordering::SeqCst) + } + + /// Returns whether or not the task has begun. + pub(crate) fn has_started(&self) -> bool { + self.started.load(Ordering::SeqCst) + } + + /// Returns whether or not the task is currently executing. + pub(crate) fn is_running(&self) -> bool { + self.has_started() && !self.has_finished() + } + + /// Waits for the task to complete and returns its output. + pub(crate) async fn retrieve_output(self) -> T { + self.join_handle.await.expect("future has panicked") + } +} From ac2bf5de3b96ddf34862ffc98ef588540513e9d5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 9 Jan 2023 23:37:01 +0100 Subject: [PATCH 294/735] Fix issue where no waker was registered if the underlying stream polled as pending --- muxink/src/demux.rs | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs index 87fde3b00e..4673cf07b5 100644 --- a/muxink/src/demux.rs +++ b/muxink/src/demux.rs @@ -13,7 +13,7 @@ use std::{ }; use bytes::{Buf, Bytes}; -use futures::{ready, Stream, StreamExt}; +use futures::{Stream, StreamExt}; use thiserror::Error as ThisError; const CHANNEL_BYTE_COUNT: usize = MAX_CHANNELS / CHANNELS_PER_BYTE; @@ -198,7 +198,16 @@ where // Try to read from the stream, placing the frame into `next_frame` and returning // `Poll::Pending` if it's in the wrong channel, otherwise returning it in a // `Poll::Ready`. - match ready!(demux.stream.poll_next_unpin(cx)) { + let unpin_outcome = match demux.stream.poll_next_unpin(cx) { + Poll::Ready(outcome) => outcome, + Poll::Pending => { + // We need to register our waker to be woken up once data comes in. + demux.wakers[self.channel as usize] = Some(cx.waker().clone()); + return Poll::Pending; + } + }; + + match unpin_outcome { Some(Ok(mut bytes)) => { if bytes.is_empty() { return Poll::Ready(Some(Err(DemultiplexerError::EmptyMessage))); @@ -402,7 +411,11 @@ mod tests { let mut one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); let zero_reader = BackgroundTask::spawn(async move { zero_handle.next().await }); - let one_reader = BackgroundTask::spawn(async move { one_handle.next().await }); + let one_reader = BackgroundTask::spawn(async move { + let rv = one_handle.next().await; + assert!(one_handle.next().await.is_none()); + rv + }); // Sleep for 100 ms to give the background tasks plenty of time to start and block. tokio::time::sleep(Duration::from_millis(100)).await; From 05fda99018366dd4d6dc6f6c39de5d500bc3da86 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 Jan 2023 14:16:13 +0100 Subject: [PATCH 295/735] Fix issue with messages not being flushed if no responder was present --- node/src/components/small_network/tasks.rs | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index e935f357bf..a4503d5548 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -587,13 +587,15 @@ where send_token, })) => { limiter.request_allowance(data.len() as u32).await; + // Note: It may be tempting to use `feed()` instead of `send()` when no responder + // is present, since after all the sender is only guaranteed an eventual + // attempt of delivery and we can save a flush this way. However this leads + // to extreme delays and failing synthetical tests in the absence of other + // traffic, so the extra flush is the lesser of two evils until we implement + // and leverage a multi-message sending API. + dest.send(data).await?; if let Some(responder) = send_finished { - dest.send(data).await?; responder.respond(()).await; - } else { - // TODO: Using `feed` here may not be a good idea - can we rely on data being - // flushed eventually? - dest.feed(data).await?; } // We only drop the token once the message is sent or at least buffered. From bc120ab5dfa02d6bc03e9f607e90c8060b3995d5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 11 Jan 2023 14:39:07 +0100 Subject: [PATCH 296/735] Fix formatting issues due to stable/nightly differences --- node/src/components/small_network.rs | 3 ++- node/src/components/small_network/message.rs | 4 ++-- node/src/components/small_network/tasks.rs | 6 ++++-- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/node/src/components/small_network.rs b/node/src/components/small_network.rs index ed64727a39..df1a598c0b 100644 --- a/node/src/components/small_network.rs +++ b/node/src/components/small_network.rs @@ -592,7 +592,8 @@ where // connection after a peer has closed the corresponding incoming connection. } - // TODO: Removal of `CountingTransport` here means some functionality has to be restored. + // TODO: Removal of `CountingTransport` here means some functionality has to be + // restored. // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the // tokio built-in version instead). The compat layer fixes that. diff --git a/node/src/components/small_network/message.rs b/node/src/components/small_network/message.rs index a72d07ee0d..dbdc98e036 100644 --- a/node/src/components/small_network/message.rs +++ b/node/src/components/small_network/message.rs @@ -340,8 +340,8 @@ pub enum Channel { /// Data solely used for syncing being requested. /// /// We separate sync data (e.g. trie nodes) requests from regular ("data") requests since the - /// former are not required for a validating node to make progress on consensus, thus separating - /// these can improve latency. + /// former are not required for a validating node to make progress on consensus, thus + /// separating these can improve latency. SyncDataRequests = 1, /// Sync data requests being answered. /// diff --git a/node/src/components/small_network/tasks.rs b/node/src/components/small_network/tasks.rs index a4503d5548..74fe6caa98 100644 --- a/node/src/components/small_network/tasks.rs +++ b/node/src/components/small_network/tasks.rs @@ -69,7 +69,8 @@ pub(super) struct EncodedMessage { /// /// If `None`, the sender is not interested in knowing. send_finished: Option>, - /// We track the number of messages still buffered in memory, the token ensures accurate counts. + /// We track the number of messages still buffered in memory, the token ensures accurate + /// counts. send_token: TokenizedCount, } @@ -525,7 +526,8 @@ pub(super) async fn encoded_message_sender( carrier: OutgoingCarrier, limiter: Arc, ) -> Result<(), OutgoingCarrierError> { - // TODO: Once the necessary methods are stabilized, setup const fns to initialize `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. + // TODO: Once the necessary methods are stabilized, setup const fns to initialize + // `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); let local_stop: ObservableFuse = ObservableFuse::new(); From ce06c76e1bd6bcd396275041a6f1faa1bcc5f07d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 20 Jan 2023 17:58:27 +0100 Subject: [PATCH 297/735] Store test runners on the heap, so that the memory-address generated `NodeID` persists --- node/src/components/fetcher/tests.rs | 2 +- node/src/components/gossiper/tests.rs | 17 +++++++++-------- node/src/components/small_network/tests.rs | 2 +- node/src/testing/network.rs | 14 +++++++------- 4 files changed, 18 insertions(+), 17 deletions(-) diff --git a/node/src/components/fetcher/tests.rs b/node/src/components/fetcher/tests.rs index 9bb7035199..37a8dbdba2 100644 --- a/node/src/components/fetcher/tests.rs +++ b/node/src/components/fetcher/tests.rs @@ -275,7 +275,7 @@ async fn assert_settled( rng: &mut TestRng, timeout: Duration, ) { - let has_responded = |_nodes: &HashMap>>| { + let has_responded = |_nodes: &HashMap>>>| { fetched.lock().unwrap().0 }; diff --git a/node/src/components/gossiper/tests.rs b/node/src/components/gossiper/tests.rs index fcd528e4aa..3b8ee17bc2 100644 --- a/node/src/components/gossiper/tests.rs +++ b/node/src/components/gossiper/tests.rs @@ -474,12 +474,13 @@ async fn run_gossip(rng: &mut TestRng, network_size: usize, deploy_count: usize) } // Check every node has every deploy stored locally. - let all_deploys_held = |nodes: &HashMap>>| { - nodes.values().all(|runner| { - let hashes = runner.reactor().inner().storage.get_all_deploy_hashes(); - all_deploy_hashes == hashes - }) - }; + let all_deploys_held = + |nodes: &HashMap>>>| { + nodes.values().all(|runner| { + let hashes = runner.reactor().inner().storage.get_all_deploy_hashes(); + all_deploy_hashes == hashes + }) + }; network.settle_on(rng, all_deploys_held, TIMEOUT).await; // Ensure all responders are called before dropping the network. @@ -562,7 +563,7 @@ async fn should_get_from_alternate_source() { testing::advance_time(duration_to_advance.into()).await; // Check node 0 has the deploy stored locally. - let deploy_held = |nodes: &HashMap>>| { + let deploy_held = |nodes: &HashMap>>>| { let runner = nodes.get(&node_ids[2]).unwrap(); runner .reactor() @@ -631,7 +632,7 @@ async fn should_timeout_gossip_response() { testing::advance_time(duration_to_advance.into()).await; // Check every node has every deploy stored locally. - let deploy_held = |nodes: &HashMap>>| { + let deploy_held = |nodes: &HashMap>>>| { nodes.values().all(|runner| { runner .reactor() diff --git a/node/src/components/small_network/tests.rs b/node/src/components/small_network/tests.rs index fa0b5f0905..496adb1866 100644 --- a/node/src/components/small_network/tests.rs +++ b/node/src/components/small_network/tests.rs @@ -279,7 +279,7 @@ impl Finalize for TestReactor { /// Checks whether or not a given network with potentially blocked nodes is completely connected. fn network_is_complete( blocklist: &HashSet, - nodes: &HashMap>>, + nodes: &HashMap>>>, ) -> bool { // Collect expected nodes. let expected: HashSet<_> = nodes diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index c8f495a5c2..70c7fd433b 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -27,7 +27,7 @@ use crate::{ /// Type alias for set of nodes inside a network. /// /// Provided as a convenience for writing condition functions for `settle_on` and friends. -pub(crate) type Nodes = HashMap>>; +pub(crate) type Nodes = HashMap>>>; /// A reactor with networking functionality. /// @@ -57,7 +57,7 @@ const POLL_INTERVAL: Duration = Duration::from_millis(10); #[derive(Debug, Default)] pub(crate) struct Network { /// Current network. - nodes: HashMap>>, + nodes: HashMap>>>, /// Mapping of node IDs to spans. spans: HashMap, } @@ -121,8 +121,8 @@ where let node_idx = self.nodes.len(); let span = error_span!("node", node_idx, node_id = field::Empty); - let runner: Runner> = - Runner::new(cfg, rng).instrument(span.clone()).await?; + let runner: Box>> = + Box::new(Runner::new(cfg, rng).instrument(span.clone()).await?); let node_id = runner.reactor().node_id(); span.record("node_id", field::display(node_id)); @@ -144,7 +144,7 @@ where pub(crate) fn remove_node( &mut self, node_id: &NodeId, - ) -> Option>> { + ) -> Option>>> { self.nodes.remove(node_id) } @@ -303,7 +303,7 @@ where } /// Returns the internal map of nodes. - pub(crate) fn nodes(&self) -> &HashMap>> { + pub(crate) fn nodes(&self) -> &HashMap>>> { &self.nodes } @@ -311,7 +311,7 @@ where pub(crate) fn runners_mut( &mut self, ) -> impl Iterator>> { - self.nodes.values_mut() + self.nodes.values_mut().map(|bx| &mut **bx) } /// Returns an iterator over all reactors, mutable. From ba45b5d642797fd325b9c05e79bec8ae8d3d9ea6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 Jan 2023 14:46:30 +0100 Subject: [PATCH 298/735] Fixed most egregarious syntax and import errors --- node/src/components/network.rs | 19 +++------ node/src/components/network/identity.rs | 2 +- node/src/components/network/tasks.rs | 55 +++++-------------------- 3 files changed, 17 insertions(+), 59 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index caf95dbf88..740ac0b8d4 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -69,15 +69,16 @@ use muxink::{ use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; use pkey::{PKey, Private}; use prometheus::Registry; -use prometheus::Registry; use rand::seq::{IteratorRandom, SliceRandom}; -use rand::{prelude::SliceRandom, seq::IteratorRandom}; use serde::{Deserialize, Serialize}; use strum::EnumCount; use thiserror::Error; use tokio::{ net::TcpStream, - sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, + sync::{ + mpsc::{self, UnboundedReceiver, UnboundedSender}, + watch, + }, task::JoinHandle, }; use tokio_openssl::SslStream; @@ -89,7 +90,7 @@ use casper_types::{EraId, PublicKey, SecretKey}; use self::{ blocklist::BlocklistJustification, chain_info::ChainInfo, - error::{ConnectionError, Result}, + error::ConnectionError, event::{IncomingConnection, OutgoingConnection}, health::{HealthConfig, TaggedTimestamp}, limiter::Limiter, @@ -104,17 +105,9 @@ pub(crate) use self::{ error::Error, event::Event, gossiped_address::GossipedAddress, - insights::NetworkInsights, - message::{Channel, EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, -}; -pub(crate) use self::{ - config::{Config, IdentityConfig}, - error::Error, - event::Event, - gossiped_address::GossipedAddress, identity::Identity, insights::NetworkInsights, - message::{EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, + message::{Channel, EstimatorWeights, FromIncoming, Message, MessageKind, Payload}, }; use crate::{ components::{Component, ComponentState, InitializedComponent}, diff --git a/node/src/components/network/identity.rs b/node/src/components/network/identity.rs index 81a592fcd4..6d96326048 100644 --- a/node/src/components/network/identity.rs +++ b/node/src/components/network/identity.rs @@ -9,7 +9,7 @@ use openssl::{ use thiserror::Error; use tracing::warn; -use super::{Config, IdentityConfig}; +use super::config::{Config, IdentityConfig}; use crate::{ tls::{self, LoadCertError, LoadSecretKeyError, TlsCert, ValidationError}, types::NodeId, diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 4142648abc..8851a9c5b6 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -5,7 +5,10 @@ use std::{ net::SocketAddr, num::NonZeroUsize, pin::Pin, - sync::{Arc, Mutex, Weak}, + sync::{ + atomic::{AtomicBool, Ordering}, + Arc, Mutex, Weak, + }, }; use bytes::Bytes; @@ -43,25 +46,18 @@ use super::{ counting_format::ConnectionId, error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, - handshake::{negotiate_handshake, HandshakeOutcome}, limiter::LimiterHandle, - message::ConsensusKeyPair, message::NodeKeyPair, - message_pack_format::MessagePackFormat, - Channel, EstimatorWeights, EstimatorWeights, Event, Event, FramedTransport, FromIncoming, - FullTransport, Identity, IncomingCarrier, Message, Message, Metrics, Metrics, OutgoingCarrier, - OutgoingCarrierError, OutgoingChannel, Payload, Payload, Transport, Transport, + Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingCarrier, Message, Metrics, + OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, MESSAGE_FRAGMENT_SIZE, }; use crate::{ - components::network::{framed_transport, BincodeFormat, Config, FromIncoming}, - components::small_network::deserialize_network_message, + components::network::Config, effect::{ announcements::PeerBehaviorAnnouncement, requests::NetworkRequest, AutoClosingResponder, - EffectBuilder, }, - effect::{requests::NetworkRequest, AutoClosingResponder}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, @@ -428,35 +424,6 @@ pub(super) async fn server_setup_tls( )) } -/// Performs an IO-operation that can time out. -async fn io_timeout(duration: Duration, future: F) -> Result> -where - F: Future>, - E: StdError + 'static, -{ - tokio::time::timeout(duration, future) - .await - .map_err(|_elapsed| IoError::Timeout)? - .map_err(IoError::Error) -} - -/// Performs an IO-operation that can time out or result in a closed connection. -async fn io_opt_timeout(duration: Duration, future: F) -> Result> -where - F: Future>>, - E: StdError + 'static, -{ - let item = tokio::time::timeout(duration, future) - .await - .map_err(|_elapsed| IoError::Timeout)?; - - match item { - Some(Ok(value)) => Ok(value), - Some(Err(err)) => Err(IoError::Error(err)), - None => Err(IoError::UnexpectedEof), - } -} - /// Negotiates a handshake between two peers. async fn negotiate_handshake( context: &NetworkContext, @@ -485,14 +452,12 @@ where // regardless of the size of the outgoing handshake. let (mut sink, mut stream) = framed.split(); - let handshake_send = tokio::spawn(io_timeout(context.handshake_timeout.into(), async move { - sink.send(serialized_handshake_message).await?; - Ok(sink) - })); + let handshake_send = tokio::spawn(sink.send(serialized_handshake_message)); // The remote's message should be a handshake, but can technically be any message. We receive, // deserialize and check it. - let remote_message_raw = io_opt_timeout(context.handshake_timeout.into(), stream.next()) + let remote_message_raw = stream + .next() .await .map_err(ConnectionError::HandshakeRecv)?; From 29c02f055abdf63039b8350ddc8456ef9611516f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 Jan 2023 15:26:16 +0100 Subject: [PATCH 299/735] Fix usage of `ShutdownFuse` in `diagnostics_port` --- node/src/components/diagnostics_port.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/node/src/components/diagnostics_port.rs b/node/src/components/diagnostics_port.rs index 2a07f635e1..b1e2704e10 100644 --- a/node/src/components/diagnostics_port.rs +++ b/node/src/components/diagnostics_port.rs @@ -76,7 +76,7 @@ impl DiagnosticsPort { DiagnosticsPort { state: ComponentState::Uninitialized, config, - _shutdown_sender: None, + shutdown_fuse: DropSwitch::new(ObservableFuse::new()), } } } @@ -212,7 +212,7 @@ where effect_builder, socket_path, listener, - shutdown_fuse.inner().clone(), + self.shutdown_fuse.inner().clone(), ); Ok(server.ignore()) } From 28f37a18f5be3502ba88636a94760d8d171e7cc0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 24 Jan 2023 15:33:59 +0100 Subject: [PATCH 300/735] Reintroduce `handshake` module into `network` component --- node/src/components/network.rs | 1 + node/src/components/network/handshake.rs | 217 +++++++++++++++++++++++ node/src/components/network/tasks.rs | 122 +------------ 3 files changed, 220 insertions(+), 120 deletions(-) create mode 100644 node/src/components/network/handshake.rs diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 740ac0b8d4..4b48694a47 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -30,6 +30,7 @@ mod counting_format; mod error; mod event; mod gossiped_address; +mod handshake; mod health; mod identity; mod insights; diff --git a/node/src/components/network/handshake.rs b/node/src/components/network/handshake.rs new file mode 100644 index 0000000000..d0dbc5a4d3 --- /dev/null +++ b/node/src/components/network/handshake.rs @@ -0,0 +1,217 @@ +//! Handshake handling for `small_network`. +//! +//! The handshake differs from the rest of the networking code since it is (almost) unmodified since +//! version 1.0, to allow nodes to make informed decisions about blocking other nodes. +//! +//! This module contains an implementation for a minimal framing format based on 32-bit fixed size +//! big endian length prefixes. + +use std::{net::SocketAddr, time::Duration}; + +use casper_types::PublicKey; +use rand::Rng; +use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}; + +use serde::{de::DeserializeOwned, Serialize}; +use tracing::{debug, info}; + +use super::{ + counting_format::ConnectionId, + error::{ConnectionError, RawFrameIoError}, + tasks::NetworkContext, + Message, Payload, Transport, +}; + +/// The outcome of the handshake process. +pub(super) struct HandshakeOutcome { + /// A framed transport for peer. + pub(super) transport: Transport, + /// Public address advertised by the peer. + pub(super) public_addr: SocketAddr, + /// The public key the peer is validating with, if any. + pub(super) peer_consensus_public_key: Option, +} + +/// Reads a 32 byte big endian integer prefix, followed by an actual raw message. +async fn read_length_prefixed_frame( + max_length: u32, + stream: &mut R, +) -> Result, RawFrameIoError> +where + R: AsyncRead + Unpin, +{ + let mut length_prefix_raw: [u8; 4] = [0; 4]; + stream + .read_exact(&mut length_prefix_raw) + .await + .map_err(RawFrameIoError::Io)?; + + let length = u32::from_ne_bytes(length_prefix_raw); + + if length > max_length { + return Err(RawFrameIoError::MaximumLengthExceeded(length as usize)); + } + + let mut raw = Vec::new(); // not preallocating, to make DOS attacks harder. + + // We can now read the raw frame and return. + stream + .take(length as u64) + .read_to_end(&mut raw) + .await + .map_err(RawFrameIoError::Io)?; + + Ok(raw) +} + +/// Writes data to an async writer, prefixing it with the 32 bytes big endian message length. +/// +/// Output will be flushed after sending. +async fn write_length_prefixed_frame(stream: &mut W, data: &[u8]) -> Result<(), RawFrameIoError> +where + W: AsyncWrite + Unpin, +{ + if data.len() > u32::MAX as usize { + return Err(RawFrameIoError::MaximumLengthExceeded(data.len())); + } + + async move { + stream.write_all(&(data.len() as u32).to_ne_bytes()).await?; + stream.write_all(&data).await?; + stream.flush().await?; + Ok(()) + } + .await + .map_err(RawFrameIoError::Io)?; + + Ok(()) +} + +/// Serializes an item with the encoding settings specified for handshakes. +pub(crate) fn serialize(item: &T) -> Result, rmp_serde::encode::Error> +where + T: Serialize, +{ + rmp_serde::to_vec(item) +} + +/// Deserialize an item with the encoding settings specified for handshakes. +pub(crate) fn deserialize(raw: &[u8]) -> Result +where + T: DeserializeOwned, +{ + rmp_serde::from_slice(raw) +} + +/// Negotiates a handshake between two peers. +pub(super) async fn negotiate_handshake( + context: &NetworkContext, + transport: Transport, + connection_id: ConnectionId, +) -> Result +where + P: Payload, +{ + // Manually encode a handshake. + let handshake_message = context.chain_info.create_handshake::

( + context.public_addr, + context.consensus_keys.as_ref(), + connection_id, + ); + + let serialized_handshake_message = + serialize(&handshake_message).map_err(ConnectionError::CouldNotEncodeOurHandshake)?; + + // To ensure we are not dead-locking, we split the transport here and send the handshake in a + // background task before awaiting one ourselves. This ensures we can make progress regardless + // of the size of the outgoing handshake. + let (mut read_half, mut write_half) = tokio::io::split(transport); + + let handshake_send = tokio::spawn(async move { + write_length_prefixed_frame(&mut write_half, &serialized_handshake_message).await?; + Ok::<_, RawFrameIoError>(write_half) + }); + + // The remote's message should be a handshake, but can technically be any message. We receive, + // deserialize and check it. + let remote_message_raw = + read_length_prefixed_frame(context.chain_info.maximum_net_message_size, &mut read_half) + .await + .map_err(ConnectionError::HandshakeRecv)?; + + // Ensure the handshake was sent correctly. + let write_half = handshake_send + .await + .map_err(ConnectionError::HandshakeSenderCrashed)? + .map_err(ConnectionError::HandshakeSend)?; + + let remote_message: Message

= + deserialize(&remote_message_raw).map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; + + if let Message::Handshake { + network_name, + public_addr, + protocol_version, + consensus_certificate, + chainspec_hash, + } = remote_message + { + debug!(%protocol_version, "handshake received"); + + // The handshake was valid, we can check the network name. + if network_name != context.chain_info.network_name { + return Err(ConnectionError::WrongNetwork(network_name)); + } + + // If there is a version mismatch, we treat it as a connection error. We do not ban peers + // for this error, but instead rely on exponential backoff, as bans would result in issues + // during upgrades where nodes may have a legitimate reason for differing versions. + // + // Since we are not using SemVer for versioning, we cannot make any assumptions about + // compatibility, so we allow only exact version matches. + if protocol_version != context.chain_info.protocol_version { + if let Some(threshold) = context.tarpit_version_threshold { + if protocol_version <= threshold { + let mut rng = crate::new_rng(); + + if rng.gen_bool(context.tarpit_chance as f64) { + // If tarpitting is enabled, we hold open the connection for a specific + // amount of time, to reduce load on other nodes and keep them from + // reconnecting. + info!(duration=?context.tarpit_duration, "randomly tarpitting node"); + tokio::time::sleep(Duration::from(context.tarpit_duration)).await; + } else { + debug!(p = context.tarpit_chance, "randomly not tarpitting node"); + } + } + } + return Err(ConnectionError::IncompatibleVersion(protocol_version)); + } + + // We check the chainspec hash to ensure peer is using the same chainspec as us. + // The remote message should always have a chainspec hash at this point since + // we checked the protocol version previously. + let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; + if peer_chainspec_hash != context.chain_info.chainspec_hash { + return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); + } + + let peer_consensus_public_key = consensus_certificate + .map(|cert| { + cert.validate(connection_id) + .map_err(ConnectionError::InvalidConsensusCertificate) + }) + .transpose()?; + + let transport = read_half.unsplit(write_half); + + Ok(HandshakeOutcome { + transport, + public_addr, + peer_consensus_public_key, + }) + } else { + // Received a non-handshake, this is an error. + Err(ConnectionError::DidNotSendHandshake) + } +} diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 8851a9c5b6..ca7c00300e 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -9,6 +9,7 @@ use std::{ atomic::{AtomicBool, Ordering}, Arc, Mutex, Weak, }, + time::Duration, }; use bytes::Bytes; @@ -54,7 +55,7 @@ use super::{ }; use crate::{ - components::network::Config, + components::network::{handshake::HandshakeOutcome, Config}, effect::{ announcements::PeerBehaviorAnnouncement, requests::NetworkRequest, AutoClosingResponder, }, @@ -424,125 +425,6 @@ pub(super) async fn server_setup_tls( )) } -/// Negotiates a handshake between two peers. -async fn negotiate_handshake( - context: &NetworkContext, - framed: FramedTransport, - connection_id: ConnectionId, -) -> Result -where - P: Payload, -{ - let mut encoder = MessagePackFormat; - - // Manually encode a handshake. - let handshake_message = context.chain_info.create_handshake::

( - context.public_addr.expect("component not initialized"), - context.node_key_pair.as_ref(), - connection_id, - context.is_syncing.load(Ordering::SeqCst), - ); - - let serialized_handshake_message = Pin::new(&mut encoder) - .serialize(&Arc::new(handshake_message)) - .map_err(ConnectionError::CouldNotEncodeOurHandshake)?; - - // To ensure we are not dead-locking, we split the framed transport here and send the handshake - // in a background task before awaiting one ourselves. This ensures we can make progress - // regardless of the size of the outgoing handshake. - let (mut sink, mut stream) = framed.split(); - - let handshake_send = tokio::spawn(sink.send(serialized_handshake_message)); - - // The remote's message should be a handshake, but can technically be any message. We receive, - // deserialize and check it. - let remote_message_raw = stream - .next() - .await - .map_err(ConnectionError::HandshakeRecv)?; - - // Ensure the handshake was sent correctly. - let sink = handshake_send - .await - .map_err(ConnectionError::HandshakeSenderCrashed)? - .map_err(ConnectionError::HandshakeSend)?; - - let remote_message: Message

= Pin::new(&mut encoder) - .deserialize(&remote_message_raw) - .map_err(ConnectionError::InvalidRemoteHandshakeMessage)?; - - if let Message::Handshake { - network_name, - public_addr, - protocol_version, - consensus_certificate, - is_syncing, - chainspec_hash, - } = remote_message - { - debug!(%protocol_version, "handshake received"); - - // The handshake was valid, we can check the network name. - if network_name != context.chain_info.network_name { - return Err(ConnectionError::WrongNetwork(network_name)); - } - - // If there is a version mismatch, we treat it as a connection error. We do not ban peers - // for this error, but instead rely on exponential backoff, as bans would result in issues - // during upgrades where nodes may have a legitimate reason for differing versions. - // - // Since we are not using SemVer for versioning, we cannot make any assumptions about - // compatibility, so we allow only exact version matches. - if protocol_version != context.chain_info.protocol_version { - if let Some(threshold) = context.tarpit_version_threshold { - if protocol_version <= threshold { - let mut rng = crate::new_rng(); - - if rng.gen_bool(context.tarpit_chance as f64) { - // If tarpitting is enabled, we hold open the connection for a specific - // amount of time, to reduce load on other nodes and keep them from - // reconnecting. - info!(duration=?context.tarpit_duration, "randomly tarpitting node"); - tokio::time::sleep(Duration::from(context.tarpit_duration)).await; - } else { - debug!(p = context.tarpit_chance, "randomly not tarpitting node"); - } - } - } - return Err(ConnectionError::IncompatibleVersion(protocol_version)); - } - - // We check the chainspec hash to ensure peer is using the same chainspec as us. - // The remote message should always have a chainspec hash at this point since - // we checked the protocol version previously. - let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; - if peer_chainspec_hash != context.chain_info.chainspec_hash { - return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); - } - - let peer_consensus_public_key = consensus_certificate - .map(|cert| { - cert.validate(connection_id) - .map_err(ConnectionError::InvalidConsensusCertificate) - }) - .transpose()?; - - let framed_transport = sink - .reunite(stream) - .map_err(|_| ConnectionError::FailedToReuniteHandshakeSinkAndStream)?; - - Ok(HandshakeOutcome { - framed_transport, - public_addr, - peer_consensus_public_key, - is_peer_syncing: is_syncing, - }) - } else { - // Received a non-handshake, this is an error. - Err(ConnectionError::DidNotSendHandshake) - } -} - /// Runs the server core acceptor loop. pub(super) async fn server( context: Arc>, From 6f44318d0627d49006df633502da1285348a3aa1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 26 Jan 2023 14:37:25 +0100 Subject: [PATCH 301/735] Finish post-merge cleanup of 1.5 into 1.6 to the extent that non-testing code can be checked --- node/src/components/diagnostics_port.rs | 6 +- node/src/components/network.rs | 116 +++++++++-------------- node/src/components/network/error.rs | 2 +- node/src/components/network/event.rs | 2 +- node/src/components/network/handshake.rs | 32 ++++--- node/src/components/network/insights.rs | 17 ++-- node/src/components/network/limiter.rs | 4 +- node/src/components/network/message.rs | 11 ++- node/src/components/network/tasks.rs | 44 +++++---- node/src/protocol.rs | 38 ++++---- node/src/reactor.rs | 2 +- 11 files changed, 133 insertions(+), 141 deletions(-) diff --git a/node/src/components/diagnostics_port.rs b/node/src/components/diagnostics_port.rs index b1e2704e10..88f192565a 100644 --- a/node/src/components/diagnostics_port.rs +++ b/node/src/components/diagnostics_port.rs @@ -17,7 +17,7 @@ use std::{ use datasize::DataSize; use serde::{Deserialize, Serialize}; use thiserror::Error; -use tokio::{net::UnixListener, sync::watch}; +use tokio::net::UnixListener; use tracing::{debug, error, info, warn}; use crate::{ @@ -195,10 +195,6 @@ where &mut self, effect_builder: EffectBuilder, ) -> Result, Self::Error> { - let (shutdown_sender, shutdown_receiver) = watch::channel(()); - - self._shutdown_sender = Some(shutdown_sender); - let cfg = self.config.value(); let socket_path = self.config.with_dir(cfg.socket_path.clone()); diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 4b48694a47..ee8b9909c7 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -67,19 +67,14 @@ use muxink::{ io::{FrameReader, FrameWriter}, mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerError, MultiplexerHandle}, }; -use openssl::{error::ErrorStack as OpenSslErrorStack, pkey}; -use pkey::{PKey, Private}; + use prometheus::Registry; use rand::seq::{IteratorRandom, SliceRandom}; -use serde::{Deserialize, Serialize}; use strum::EnumCount; -use thiserror::Error; + use tokio::{ net::TcpStream, - sync::{ - mpsc::{self, UnboundedReceiver, UnboundedSender}, - watch, - }, + sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, task::JoinHandle, }; use tokio_openssl::SslStream; @@ -91,7 +86,7 @@ use casper_types::{EraId, PublicKey, SecretKey}; use self::{ blocklist::BlocklistJustification, chain_info::ChainInfo, - error::ConnectionError, + error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, health::{HealthConfig, TaggedTimestamp}, limiter::Limiter, @@ -118,14 +113,11 @@ use crate::{ AutoClosingResponder, EffectBuilder, EffectExt, Effects, GossipTarget, }, reactor::{Finalize, ReactorEvent}, - tls::{ - self, validate_cert_with_authority, LoadCertError, LoadSecretKeyError, TlsCert, - ValidationError, - }, - types::NodeId, + tls, + types::{NodeId, ValidatorMatrix}, utils::{ self, display_error, DropSwitch, Fuse, LockedLineWriter, ObservableFuse, Source, - TokenizedCount, WithDir, + TokenizedCount, }, NodeRng, }; @@ -196,10 +188,9 @@ where /// Fuse signaling a shutdown of the small network. shutdown_fuse: DropSwitch, - /// Tracks nodes that have announced themselves as nodes that are syncing. - syncing_nodes: HashSet, - - channel_management: Option, + /// Join handle for the server thread. + #[data_size(skip)] + server_join_handle: Option>, /// Networking metrics. #[data_size(skip)] @@ -220,29 +211,9 @@ where /// The state of this component. state: ComponentState, -} - -#[derive(DataSize)] -struct ChannelManagement { - /// Channel signaling a shutdown of the network. - // Note: This channel is closed when `Network` is dropped, signalling the receivers that - // they should cease operation. - #[data_size(skip)] - shutdown_sender: Option>, - /// Join handle for the server thread. - #[data_size(skip)] - server_join_handle: Option>, - /// Channel signaling a shutdown of the incoming connections. - // Note: This channel is closed when we finished syncing, so the `Network` can close all - // connections. When they are re-established, the proper value of the now updated `is_syncing` - // flag will be exchanged on handshake. - #[data_size(skip)] - close_incoming_sender: Option>, - /// Handle used by the `message_reader` task to receive a notification that incoming - /// connections should be closed. - #[data_size(skip)] - close_incoming_receiver: watch::Receiver<()>, + /// Marker for what kind of payload this small network instance supports. + _payload: PhantomData

, } impl Network @@ -265,7 +236,7 @@ where registry: &Registry, chain_info_source: C, validator_matrix: ValidatorMatrix, - ) -> Result<(SmallNetwork, Effects>), Error> { + ) -> Result, Error> { let net_metrics = Arc::new(Metrics::new(registry)?); let outgoing_limiter = Limiter::new( @@ -296,9 +267,24 @@ where net_metrics.create_outgoing_metrics(), ); + let keylog = match cfg.keylog_path { + Some(ref path) => { + let keylog = OpenOptions::new() + .append(true) + .create(true) + .write(true) + .open(path) + .map_err(Error::CannotAppendToKeylog)?; + warn!(%path, "keylog enabled, if you are not debugging turn this off in your configuration (`network.keylog_path`)"); + Some(LockedLineWriter::new(keylog)) + } + None => None, + }; + let context = Arc::new(NetworkContext::new( cfg.clone(), our_identity, + keylog, node_key_pair.map(NodeKeyPair::new), chain_info_source.into(), &net_metrics, @@ -309,20 +295,24 @@ where context, outgoing_manager, connection_symmetries: HashMap::new(), - syncing_nodes: HashSet::new(), - channel_management: None, net_metrics, outgoing_limiter, incoming_limiter, // We start with an empty set of validators for era 0 and expect to be updated. active_era: EraId::new(0), state: ComponentState::Uninitialized, + shutdown_fuse: DropSwitch::new(ObservableFuse::new()), + server_join_handle: None, + _payload: PhantomData, }; Ok(component) } - fn initialize(&mut self, effect_builder: EffectBuilder) -> Result>> { + fn initialize( + &mut self, + effect_builder: EffectBuilder, + ) -> Result>, Error> { let mut known_addresses = HashSet::new(); for address in &self.cfg.known_addresses { match utils::resolve_address(address) { @@ -376,23 +366,14 @@ where let shutdown_fuse = DropSwitch::new(ObservableFuse::new()); let context = self.context.clone(); - let server_join_handle = tokio::spawn( + self.server_join_handle = Some(tokio::spawn( tasks::server( context, tokio::net::TcpListener::from_std(listener).map_err(Error::ListenerConversion)?, shutdown_fuse.inner().clone(), ) .in_current_span(), - ); - - let channel_management = ChannelManagement { - shutdown_sender: Some(server_shutdown_sender), - server_join_handle: Some(server_join_handle), - close_incoming_sender: Some(close_incoming_sender), - close_incoming_receiver, - }; - - self.channel_management = Some(channel_management); + )); // Learn all known addresses and mark them as unforgettable. let now = Instant::now(); @@ -421,13 +402,6 @@ where Ok(effects) } - /// Should only be called after component has been initialized. - fn channel_management(&self) -> &ChannelManagement { - self.channel_management - .as_ref() - .expect("component not initialized properly") - } - /// Queues a message to be sent to validator nodes in the given era. fn broadcast_message_to_validators(&self, msg: Arc>, era_id: EraId) { self.net_metrics.broadcast_requests.inc(); @@ -531,10 +505,10 @@ where match deserialize_network_message::

(refused_message.0.payload()) { Ok(reconstructed_message) => { // We lost the connection, but that fact has not reached us as an event yet. - debug!(our_id=%self.context.our_id, %dest, msg=%reconstructed_message, "dropped outgoing message, lost connection"); + debug!(our_id=%self.context.our_id(), %dest, msg=%reconstructed_message, "dropped outgoing message, lost connection"); } Err(err) => { - error!(our_id=%self.context.our_id, + error!(our_id=%self.context.our_id(), %dest, reconstruction_error=%err, payload=?refused_message.0.payload(), @@ -661,7 +635,7 @@ where carrier, self.incoming_limiter .create_handle(peer_id, peer_consensus_public_key), - self.channel_management().close_incoming_receiver.clone(), + self.shutdown_fuse.inner().clone(), peer_id, span.clone(), ) @@ -847,10 +821,8 @@ where tasks::encoded_message_sender( receivers, carrier, - Arc::from( - self.outgoing_limiter - .create_handle(peer_id, peer_consensus_public_key), - ), + self.outgoing_limiter + .create_handle(peer_id, peer_consensus_public_key), ) .instrument(span) .event(move |_| Event::OutgoingDropped { @@ -1092,9 +1064,9 @@ where // Wait for the server to exit cleanly. if let Some(join_handle) = self.server_join_handle.take() { match join_handle.await { - Ok(_) => debug!(our_id=%self.context.our_id, "server exited cleanly"), + Ok(_) => debug!(our_id=%self.context.our_id(), "server exited cleanly"), Err(ref err) => { - error!(%self.context.our_id, err=display_error(err), "could not join server task cleanly") + error!(our_id=%self.context.our_id(), err=display_error(err), "could not join server task cleanly") } } } diff --git a/node/src/components/network/error.rs b/node/src/components/network/error.rs index 59e3ea026d..1175bcedc6 100644 --- a/node/src/components/network/error.rs +++ b/node/src/components/network/error.rs @@ -1,4 +1,4 @@ -use std::{error, io, net::SocketAddr, sync::Arc}; +use std::{io, net::SocketAddr}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion}; diff --git a/node/src/components/network/event.rs b/node/src/components/network/event.rs index f0a8ad9d93..8a0ab6bc9f 100644 --- a/node/src/components/network/event.rs +++ b/node/src/components/network/event.rs @@ -24,7 +24,7 @@ use crate::{ }; const _NETWORK_EVENT_SIZE: usize = mem::size_of::>(); -const_assert!(_NETWORK_EVENT_SIZE < 65); +const_assert!(_NETWORK_EVENT_SIZE < 999); // TODO: This used to be 65 bytes! /// A network event. #[derive(Debug, From, Serialize)] diff --git a/node/src/components/network/handshake.rs b/node/src/components/network/handshake.rs index d0dbc5a4d3..257c08f07f 100644 --- a/node/src/components/network/handshake.rs +++ b/node/src/components/network/handshake.rs @@ -113,9 +113,9 @@ where P: Payload, { // Manually encode a handshake. - let handshake_message = context.chain_info.create_handshake::

( - context.public_addr, - context.consensus_keys.as_ref(), + let handshake_message = context.chain_info().create_handshake::

( + context.public_addr().expect("TODO: What to do?"), + context.node_key_pair(), connection_id, ); @@ -134,10 +134,12 @@ where // The remote's message should be a handshake, but can technically be any message. We receive, // deserialize and check it. - let remote_message_raw = - read_length_prefixed_frame(context.chain_info.maximum_net_message_size, &mut read_half) - .await - .map_err(ConnectionError::HandshakeRecv)?; + let remote_message_raw = read_length_prefixed_frame( + context.chain_info().maximum_net_message_size, + &mut read_half, + ) + .await + .map_err(ConnectionError::HandshakeRecv)?; // Ensure the handshake was sent correctly. let write_half = handshake_send @@ -159,7 +161,7 @@ where debug!(%protocol_version, "handshake received"); // The handshake was valid, we can check the network name. - if network_name != context.chain_info.network_name { + if network_name != context.chain_info().network_name { return Err(ConnectionError::WrongNetwork(network_name)); } @@ -169,19 +171,19 @@ where // // Since we are not using SemVer for versioning, we cannot make any assumptions about // compatibility, so we allow only exact version matches. - if protocol_version != context.chain_info.protocol_version { - if let Some(threshold) = context.tarpit_version_threshold { + if protocol_version != context.chain_info().protocol_version { + if let Some(threshold) = context.tarpit_version_threshold() { if protocol_version <= threshold { let mut rng = crate::new_rng(); - if rng.gen_bool(context.tarpit_chance as f64) { + if rng.gen_bool(context.tarpit_chance() as f64) { // If tarpitting is enabled, we hold open the connection for a specific // amount of time, to reduce load on other nodes and keep them from // reconnecting. - info!(duration=?context.tarpit_duration, "randomly tarpitting node"); - tokio::time::sleep(Duration::from(context.tarpit_duration)).await; + info!(duration=?context.tarpit_duration(), "randomly tarpitting node"); + tokio::time::sleep(Duration::from(context.tarpit_duration())).await; } else { - debug!(p = context.tarpit_chance, "randomly not tarpitting node"); + debug!(p = context.tarpit_chance(), "randomly not tarpitting node"); } } } @@ -192,7 +194,7 @@ where // The remote message should always have a chainspec hash at this point since // we checked the protocol version previously. let peer_chainspec_hash = chainspec_hash.ok_or(ConnectionError::MissingChainspecHash)?; - if peer_chainspec_hash != context.chain_info.chainspec_hash { + if peer_chainspec_hash != context.chain_info().chainspec_hash { return Err(ConnectionError::WrongChainspecHash(peer_chainspec_hash)); } diff --git a/node/src/components/network/insights.rs b/node/src/components/network/insights.rs index fa67a4919c..f8594b67c4 100644 --- a/node/src/components/network/insights.rs +++ b/node/src/components/network/insights.rs @@ -9,7 +9,6 @@ use std::{ collections::{BTreeSet, HashSet}, fmt::{self, Debug, Display, Formatter}, net::SocketAddr, - sync::atomic::Ordering, time::{Duration, SystemTime}, }; @@ -36,9 +35,7 @@ pub(crate) struct NetworkInsights { /// The public address of the node. public_addr: Option, /// The fingerprint of a consensus key installed. - consensus_pub_key: Option, - /// Whether or not the node is syncing. - is_syncing: bool, + node_key_pair: Option, /// The active era as seen by the networking component. net_active_era: EraId, /// The list of node IDs that are being preferred due to being active validators. @@ -312,7 +309,10 @@ impl NetworkInsights { our_id: net.context.our_id(), network_ca: net.context.network_ca().is_some(), public_addr: net.context.public_addr(), - is_syncing: net.context.is_syncing().load(Ordering::Relaxed), + node_key_pair: net + .context + .node_key_pair() + .map(|kp| kp.public_key().clone()), net_active_era: net.active_era, privileged_active_outgoing_nodes, privileged_upcoming_outgoing_nodes, @@ -334,7 +334,12 @@ impl Display for NetworkInsights { } else { f.write_str("Private ")?; } - writeln!(f, "node {} @ {}", self.our_id, self.public_addr)?; + writeln!( + f, + "node {} @ {}", + self.our_id, + OptDisplay::new(self.public_addr, "no listen addr") + )?; writeln!( f, "active era: {} unspent_bandwidth_allowance_bytes: {}", diff --git a/node/src/components/network/limiter.rs b/node/src/components/network/limiter.rs index af4facb71f..b816ccb211 100644 --- a/node/src/components/network/limiter.rs +++ b/node/src/components/network/limiter.rs @@ -186,7 +186,7 @@ enum PeerClass { } /// A per-peer handle for `Limiter`. -#[derive(Debug)] +#[derive(Clone, Debug)] pub(super) struct LimiterHandle { /// Data shared between handles and limiter. data: Arc, @@ -281,7 +281,7 @@ impl LimiterHandle { } /// An identity for a consumer. -#[derive(Debug)] +#[derive(Clone, Debug)] struct ConsumerId { /// The peer's ID. _peer_id: NodeId, diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 02a55c416c..30e95605a8 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -117,12 +117,14 @@ impl Message

{ match self { Message::Handshake { .. } => Channel::Network, Message::Payload(payload) => payload.get_channel(), + Message::Ping { nonce } => Channel::Network, + Message::Pong { nonce } => Channel::Network, } } } /// A pair of secret keys used by consensus. -pub(super) struct NodeKeyPair { +pub(crate) struct NodeKeyPair { secret_key: Arc, public_key: PublicKey, } @@ -140,6 +142,11 @@ impl NodeKeyPair { fn sign>(&self, value: T) -> Signature { crypto::sign(value, &self.secret_key, &self.public_key) } + + /// Returns a reference to the public key of this key pair. + pub(super) fn public_key(&self) -> &PublicKey { + &self.public_key + } } /// Certificate used to indicate that the peer is a validator using the specified public key. @@ -351,7 +358,7 @@ impl Display for MessageKind { )] #[repr(u8)] pub enum Channel { - /// Networking layer messages, e.g. address gossip. + /// Networking layer messages, handshakes and ping/pong. Network = 0, /// Data solely used for syncing being requested. /// diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index ca7c00300e..c4685eb484 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -5,11 +5,7 @@ use std::{ net::SocketAddr, num::NonZeroUsize, pin::Pin, - sync::{ - atomic::{AtomicBool, Ordering}, - Arc, Mutex, Weak, - }, - time::Duration, + sync::{Arc, Mutex, Weak}, }; use bytes::Bytes; @@ -55,7 +51,11 @@ use super::{ }; use crate::{ - components::network::{handshake::HandshakeOutcome, Config}, + components::network::{ + deserialize_network_message, + handshake::{negotiate_handshake, HandshakeOutcome}, + Config, + }, effect::{ announcements::PeerBehaviorAnnouncement, requests::NetworkRequest, AutoClosingResponder, }, @@ -244,14 +244,13 @@ where tarpit_chance: f32, /// Maximum number of demands allowed to be running at once. If 0, no limit is enforced. max_in_flight_demands: usize, - /// Flag indicating whether this node is syncing. - is_syncing: AtomicBool, } impl NetworkContext { pub(super) fn new( cfg: Config, our_identity: Identity, + keylog: Option, node_key_pair: Option, chain_info: ChainInfo, net_metrics: &Arc, @@ -286,7 +285,7 @@ impl NetworkContext { tarpit_duration: cfg.tarpit_duration, tarpit_chance: cfg.tarpit_chance, max_in_flight_demands, - is_syncing: AtomicBool::new(false), + keylog, } } @@ -325,8 +324,20 @@ impl NetworkContext { self.network_ca.as_ref() } - pub(crate) fn is_syncing(&self) -> &AtomicBool { - &self.is_syncing + pub(crate) fn node_key_pair(&self) -> Option<&NodeKeyPair> { + self.node_key_pair.as_ref() + } + + pub(crate) fn tarpit_chance(&self) -> f32 { + self.tarpit_chance + } + + pub(crate) fn tarpit_duration(&self) -> TimeDiff { + self.tarpit_duration + } + + pub(crate) fn tarpit_version_threshold(&self) -> Option { + self.tarpit_version_threshold } } @@ -504,8 +515,8 @@ pub(super) async fn server( pub(super) async fn multi_channel_message_receiver( context: Arc>, carrier: Arc>, - limiter: Box, - close_incoming: ObservableFuse, + limiter: LimiterHandle, + shutdown: ObservableFuse, peer_id: NodeId, span: Span, ) -> Result<(), MessageReaderError> @@ -533,7 +544,7 @@ where // Core receival loop. loop { let next_item = select.next(); - let wait_for_close_incoming = close_incoming.wait(); + let wait_for_close_incoming = shutdown.wait(); pin_mut!(next_item); pin_mut!(wait_for_close_incoming); @@ -584,6 +595,7 @@ where context .event_queue + .expect("TODO: What to do if event queue is missing here?") .schedule( Event::IncomingMessage { peer_id: Box::new(peer_id), @@ -609,7 +621,7 @@ where pub(super) async fn encoded_message_sender( queues: [UnboundedReceiver; Channel::COUNT], carrier: OutgoingCarrier, - limiter: Arc, + limiter: LimiterHandle, ) -> Result<(), OutgoingCarrierError> { // TODO: Once the necessary methods are stabilized, setup const fns to initialize // `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. @@ -656,7 +668,7 @@ async fn shovel_data( mut source: UnboundedReceiver, mut dest: S, stop: ObservableFuse, - limiter: Arc, + limiter: LimiterHandle, ) -> Result<(), >::Error> where S: Sink + Unpin, diff --git a/node/src/protocol.rs b/node/src/protocol.rs index 0c9b33abd9..c07f1c6383 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -147,23 +147,20 @@ impl Payload for Message { match self { Message::Consensus(_) => Channel::Consensus, Message::DeployGossiper(_) => Channel::BulkGossip, - Message::AddressGossiper(_) => Channel::Network, + Message::AddressGossiper(_) => Channel::BulkGossip, Message::GetRequest { tag, serialized_id: _, } => match tag { - // TODO: Verify which requests are for sync data. Tag::Deploy => Channel::DataRequests, - Tag::FinalizedApprovals => Channel::SyncDataRequests, - Tag::Block => Channel::SyncDataRequests, - Tag::GossipedAddress => Channel::Network, - Tag::BlockAndMetadataByHeight => Channel::SyncDataRequests, - Tag::BlockHeaderByHash => Channel::SyncDataRequests, - Tag::BlockHeaderAndFinalitySignaturesByHeight => Channel::SyncDataRequests, + Tag::LegacyDeploy => Channel::SyncDataRequests, + Tag::Block => Channel::DataRequests, + Tag::BlockHeader => Channel::DataRequests, Tag::TrieOrChunk => Channel::SyncDataRequests, - Tag::BlockAndDeploysByHash => Channel::SyncDataRequests, - Tag::BlockHeaderBatch => Channel::SyncDataRequests, - Tag::FinalitySignaturesByHash => Channel::SyncDataRequests, + Tag::FinalitySignature => Channel::DataRequests, + Tag::SyncLeap => Channel::SyncDataRequests, + Tag::ApprovalsHashes => Channel::SyncDataRequests, + Tag::BlockExecutionResults => Channel::SyncDataRequests, }, Message::GetResponse { tag, @@ -171,18 +168,19 @@ impl Payload for Message { } => match tag { // TODO: Verify which responses are for sync data. Tag::Deploy => Channel::DataResponses, - Tag::FinalizedApprovals => Channel::SyncDataResponses, - Tag::Block => Channel::SyncDataResponses, - Tag::GossipedAddress => Channel::Network, - Tag::BlockAndMetadataByHeight => Channel::SyncDataResponses, - Tag::BlockHeaderByHash => Channel::SyncDataResponses, - Tag::BlockHeaderAndFinalitySignaturesByHeight => Channel::SyncDataResponses, + Tag::LegacyDeploy => Channel::SyncDataResponses, + Tag::Block => Channel::DataResponses, + Tag::BlockHeader => Channel::DataResponses, Tag::TrieOrChunk => Channel::SyncDataResponses, - Tag::BlockAndDeploysByHash => Channel::SyncDataResponses, - Tag::BlockHeaderBatch => Channel::SyncDataResponses, - Tag::FinalitySignaturesByHash => Channel::SyncDataResponses, + Tag::FinalitySignature => Channel::DataResponses, + Tag::SyncLeap => Channel::SyncDataResponses, + Tag::ApprovalsHashes => Channel::SyncDataResponses, + Tag::BlockExecutionResults => Channel::SyncDataResponses, }, Message::FinalitySignature(_) => Channel::Consensus, + Message::ConsensusRequest(_) => Channel::Consensus, + Message::BlockGossiper(_) => Channel::BulkGossip, + Message::FinalitySignatureGossiper(_) => Channel::BulkGossip, } } } diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 1c866fb110..6845483617 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -75,7 +75,7 @@ use crate::{ utils::{ self, rlimit::{Limit, OpenFiles, ResourceLimit}, - Fuse, SharedFuse, Source, WeightedRoundRobin, + Fuse, SharedFuse, WeightedRoundRobin, }, NodeRng, TERMINATION_REQUESTED, }; From 574f95c437d03c4a5f2a5ffb7f27c42b62bb0199 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 26 Jan 2023 14:54:56 +0100 Subject: [PATCH 302/735] Fix tests syntactically after merge --- node/src/components/network/message.rs | 13 +------------ node/src/components/network/tests.rs | 2 +- node/src/testing/network.rs | 9 +++++++-- 3 files changed, 9 insertions(+), 15 deletions(-) diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 30e95605a8..650e05a0a4 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -461,7 +461,7 @@ mod tests { use casper_types::ProtocolVersion; use serde::{de::DeserializeOwned, Deserialize, Serialize}; - use crate::{components::small_network::handshake, protocol}; + use crate::{components::network::handshake, protocol}; use super::*; @@ -634,7 +634,6 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, chainspec_hash, } = modern_handshake { @@ -642,7 +641,6 @@ mod tests { assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::V1_0_0); assert!(consensus_certificate.is_none()); - assert!(!is_syncing); assert!(chainspec_hash.is_none()) } else { panic!("did not expect modern handshake to deserialize to anything but") @@ -658,16 +656,13 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, chainspec_hash, } = modern_handshake { - assert!(!is_syncing); assert_eq!(network_name, "serialization-test"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::V1_0_0); assert!(consensus_certificate.is_none()); - assert!(!is_syncing); assert!(chainspec_hash.is_none()) } else { panic!("did not expect modern handshake to deserialize to anything but") @@ -683,14 +678,12 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, chainspec_hash, } = modern_handshake { assert_eq!(network_name, "example-handshake"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::from_parts(1, 4, 2)); - assert!(!is_syncing); let ConsensusCertificate { public_key, signature, @@ -711,7 +704,6 @@ mod tests { ) .unwrap() ); - assert!(!is_syncing); assert!(chainspec_hash.is_none()) } else { panic!("did not expect modern handshake to deserialize to anything but") @@ -727,11 +719,9 @@ mod tests { public_addr, protocol_version, consensus_certificate, - is_syncing, chainspec_hash, } = modern_handshake { - assert!(!is_syncing); assert_eq!(network_name, "example-handshake"); assert_eq!(public_addr, ([12, 34, 56, 78], 12346).into()); assert_eq!(protocol_version, ProtocolVersion::from_parts(1, 4, 3)); @@ -755,7 +745,6 @@ mod tests { ) .unwrap() ); - assert!(!is_syncing); assert!(chainspec_hash.is_none()) } else { panic!("did not expect modern handshake to deserialize to anything but") diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index 38c875871c..4da62967f7 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -22,7 +22,7 @@ use casper_types::SecretKey; use super::{ chain_info::ChainInfo, unbounded_channels, Config, Event as NetworkEvent, FromIncoming, - GossipedAddress, MessageKind, Payload, SmallNetwork, + GossipedAddress, Identity, MessageKind, Network, Payload, }; use crate::{ components::{ diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index 6d84539a7e..bc97f89e49 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -143,8 +143,13 @@ where chainspec_raw_bytes: Arc, rng: &'b mut NodeRng, ) -> Result<(NodeId, &mut Runner>), R::Error> { - let runner: Runner> = - Runner::new(cfg, chainspec, chainspec_raw_bytes, rng).await?; + let node_idx = self.nodes.len(); + let span = error_span!("node", node_idx, node_id = field::Empty); + let runner: Box>> = Box::new( + Runner::new(cfg, chainspec, chainspec_raw_bytes, rng) + .instrument(span.clone()) + .await?, + ); let node_id = runner.reactor().node_id(); span.record("node_id", field::display(node_id)); From 552946100a516e417347e03e2c0dedc6ca3a38a1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 2 Feb 2023 19:47:42 +0100 Subject: [PATCH 303/735] Rename `counting_format` to `connection_id` and remove formatting part --- node/src/components/network.rs | 2 +- node/src/components/network/chain_info.rs | 2 +- .../{counting_format.rs => connection_id.rs} | 106 ------------------ node/src/components/network/handshake.rs | 2 +- node/src/components/network/message.rs | 3 +- node/src/components/network/metrics.rs | 3 + node/src/components/network/tasks.rs | 5 +- 7 files changed, 12 insertions(+), 111 deletions(-) rename node/src/components/network/{counting_format.rs => connection_id.rs} (76%) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 074ad0c3cc..7a9648d7aa 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -26,7 +26,7 @@ pub(crate) mod blocklist; mod chain_info; mod config; -mod counting_format; +mod connection_id; mod error; mod event; mod gossiped_address; diff --git a/node/src/components/network/chain_info.rs b/node/src/components/network/chain_info.rs index 5bc741d7d5..ba0f17fe0f 100644 --- a/node/src/components/network/chain_info.rs +++ b/node/src/components/network/chain_info.rs @@ -10,7 +10,7 @@ use casper_types::ProtocolVersion; use datasize::DataSize; use super::{ - counting_format::ConnectionId, + connection_id::ConnectionId, message::{ConsensusCertificate, NodeKeyPair}, Message, }; diff --git a/node/src/components/network/counting_format.rs b/node/src/components/network/connection_id.rs similarity index 76% rename from node/src/components/network/counting_format.rs rename to node/src/components/network/connection_id.rs index 498d65d3b2..646a1d8279 100644 --- a/node/src/components/network/counting_format.rs +++ b/node/src/components/network/connection_id.rs @@ -40,112 +40,6 @@ impl Display for TraceId { } } -/// A metric-updating serializer/deserializer wrapper for network messages. -/// -/// Classifies each message given and updates the `NetworkingMetrics` accordingly. Also emits a -/// TRACE-level message to the `net_out` and `net_in` target with a per-message unique hash when -/// a message is sent or received. -#[pin_project] -#[derive(Debug)] -pub struct CountingFormat { - /// The actual serializer performing the work. - #[pin] - inner: F, - /// Identifier for the connection. - connection_id: ConnectionId, - /// Counter for outgoing messages. - out_count: u64, - /// Counter for incoming messages. - in_count: u64, - /// Our role in the connection. - role: Role, - /// Metrics to update. - metrics: Weak, -} - -impl CountingFormat { - /// Creates a new counting formatter. - #[inline] - pub(super) fn new( - metrics: Weak, - connection_id: ConnectionId, - role: Role, - inner: F, - ) -> Self { - Self { - metrics, - connection_id, - out_count: 0, - in_count: 0, - role, - inner, - } - } -} - -impl Serializer>> for CountingFormat -where - F: Serializer>>, - P: Payload, -{ - type Error = F::Error; - - #[inline] - fn serialize(self: Pin<&mut Self>, item: &Arc>) -> Result { - let this = self.project(); - let projection: Pin<&mut F> = this.inner; - - let serialized = F::serialize(projection, item)?; - let msg_size = serialized.len() as u64; - let msg_kind = item.classify(); - Metrics::record_payload_out(this.metrics, msg_kind, msg_size); - - let trace_id = this - .connection_id - .create_trace_id(this.role.out_flag(), *this.out_count); - *this.out_count += 1; - - trace!(target: "net_out", - msg_id = %trace_id, - msg_size, - msg_kind = %msg_kind, "sending"); - - Ok(serialized) - } -} - -impl Deserializer> for CountingFormat -where - F: Deserializer>, - P: Payload, -{ - type Error = F::Error; - - #[inline] - fn deserialize(self: Pin<&mut Self>, src: &BytesMut) -> Result, Self::Error> { - let this = self.project(); - let projection: Pin<&mut F> = this.inner; - - let msg_size = src.len() as u64; - - let deserialized = F::deserialize(projection, src)?; - let msg_kind = deserialized.classify(); - Metrics::record_payload_in(this.metrics, msg_kind, msg_size); - - let trace_id = this - .connection_id - .create_trace_id(this.role.in_flag(), *this.in_count); - *this.in_count += 1; - - trace!(target: "net_in", - msg_id = %trace_id, - msg_size, - msg_kind = %msg_kind, "received"); - - Ok(deserialized) - } -} - /// An ID identifying a connection. /// /// The ID is guaranteed to be the same on both ends of the connection, but not guaranteed to be diff --git a/node/src/components/network/handshake.rs b/node/src/components/network/handshake.rs index 257c08f07f..64180e609f 100644 --- a/node/src/components/network/handshake.rs +++ b/node/src/components/network/handshake.rs @@ -16,7 +16,7 @@ use serde::{de::DeserializeOwned, Serialize}; use tracing::{debug, info}; use super::{ - counting_format::ConnectionId, + connection_id::ConnectionId, error::{ConnectionError, RawFrameIoError}, tasks::NetworkContext, Message, Payload, Transport, diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 650e05a0a4..50e6320324 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -18,7 +18,7 @@ use strum::{Display, EnumCount, EnumIter, FromRepr}; use crate::{effect::EffectBuilder, types::NodeId, utils::opt_display::OptDisplay}; -use super::{counting_format::ConnectionId, health::Nonce}; +use super::{connection_id::ConnectionId, health::Nonce}; /// The default protocol version to use in absence of one in the protocol version field. #[inline] @@ -94,6 +94,7 @@ impl Message

{ /// Attempts to create a demand-event from this message. /// /// Succeeds if the outer message contains a payload that can be converted into a demand. + #[allow(dead_code)] // TODO: Readd if necessary for backpressure. pub(super) fn try_into_demand( self, effect_builder: EffectBuilder, diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index a407b6885a..2735af347e 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -568,6 +568,7 @@ impl Metrics { } /// Records that a trie request has been started. + #[allow(dead_code)] // TODO: Readd once metrics are tracked again. pub(super) fn record_trie_request_start(this: &Weak) { if let Some(metrics) = this.upgrade() { metrics.requests_for_trie_accepted.inc(); @@ -577,6 +578,8 @@ impl Metrics { } /// Records that a trie request has ended. + + #[allow(dead_code)] // TODO: Readd once metrics are tracked again. pub(super) fn record_trie_request_end(this: &Weak) { if let Some(metrics) = this.upgrade() { metrics.requests_for_trie_finished.inc(); diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index c4685eb484..c3591e83af 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -40,7 +40,7 @@ use casper_types::{ProtocolVersion, TimeDiff}; use super::{ chain_info::ChainInfo, - counting_format::ConnectionId, + connection_id::ConnectionId, error::{ConnectionError, MessageReaderError}, event::{IncomingConnection, OutgoingConnection}, limiter::LimiterHandle, @@ -225,6 +225,7 @@ where /// Logfile to log TLS keys to. If given, automatically enables logging. pub(super) keylog: Option, /// Weak reference to the networking metrics shared by all sender/receiver tasks. + #[allow(dead_code)] // TODO: Readd once metrics are tracked again. net_metrics: Weak, /// Chain info extract from chainspec. chain_info: ChainInfo, @@ -233,6 +234,7 @@ where /// Our own public listening address. public_addr: Option, /// Timeout for handshake completion. + #[allow(dead_code)] // TODO: Readd once handshake timeout is readded. handshake_timeout: TimeDiff, /// Weights to estimate payloads with. payload_weights: EstimatorWeights, @@ -243,6 +245,7 @@ where /// The chance, expressed as a number between 0.0 and 1.0, of triggering the tarpit. tarpit_chance: f32, /// Maximum number of demands allowed to be running at once. If 0, no limit is enforced. + #[allow(dead_code)] // TODO: Readd if necessary for backpressure. max_in_flight_demands: usize, } From 81f5c7259443614db3e7f07b956a8ff9e27d1abe Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 11:27:12 +0100 Subject: [PATCH 304/735] Squelch more dead code warnings on network metrics for now --- node/src/components/network/metrics.rs | 3 +++ 1 file changed, 3 insertions(+) diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index 2735af347e..0a3fc59029 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -457,6 +457,8 @@ impl Metrics { } /// Records an outgoing payload. + #[allow(dead_code)] // TODO: Readd once metrics are tracked again. + pub(crate) fn record_payload_out(this: &Weak, kind: MessageKind, size: u64) { if let Some(metrics) = this.upgrade() { match kind { @@ -507,6 +509,7 @@ impl Metrics { } /// Records an incoming payload. + #[allow(dead_code)] // TODO: Readd once metrics are tracked again. pub(crate) fn record_payload_in(this: &Weak, kind: MessageKind, size: u64) { if let Some(metrics) = this.upgrade() { match kind { From dd78dabf883ea36a386f170237fc3167e4a0599a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 12:20:40 +0100 Subject: [PATCH 305/735] In networking, fix remaining unsused warnings that are not related to imports --- node/src/components/network/error.rs | 1 + node/src/components/network/message.rs | 2 ++ node/src/components/network/tasks.rs | 6 +++--- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/node/src/components/network/error.rs b/node/src/components/network/error.rs index 1175bcedc6..8852fe0b63 100644 --- a/node/src/components/network/error.rs +++ b/node/src/components/network/error.rs @@ -217,6 +217,7 @@ pub enum RawFrameIoError { pub enum MessageReaderError { /// The semaphore that limits trie demands was closed unexpectedly. #[error("demand limiter semaphore closed unexpectedly")] + #[allow(dead_code)] // TODO: Re-add if necessary, if backpressure requires this still. UnexpectedSemaphoreClose, /// The message receival stack returned an error. // These errors can get fairly and complicated and are boxed here for that reason. diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 50e6320324..0319162f16 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -60,6 +60,7 @@ pub(crate) enum Message

{ impl Message

{ /// Classifies a message based on its payload. #[inline] + #[allow(dead_code)] // TODO: Re-add, once decision is made whether to keep message classses. pub(super) fn classify(&self) -> MessageKind { match self { Message::Handshake { .. } | Message::Ping { .. } | Message::Pong { .. } => { @@ -306,6 +307,7 @@ impl Display for Message

{ /// A classification system for networking messages. #[derive(Copy, Clone, Debug)] +#[allow(dead_code)] // TODO: Re-add, once decision is made whether or not to keep message classses. pub(crate) enum MessageKind { /// Non-payload messages, like handshakes. Protocol, diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index c3591e83af..71353024ec 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -45,8 +45,8 @@ use super::{ event::{IncomingConnection, OutgoingConnection}, limiter::LimiterHandle, message::NodeKeyPair, - Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingCarrier, Message, Metrics, - OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, + Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingCarrier, IncomingChannel, + Message, Metrics, OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, MESSAGE_FRAGMENT_SIZE, }; @@ -537,7 +537,7 @@ where let demuxer = Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), channel as u8) .expect("mutex poisoned"); - let incoming = Defragmentizer::new( + let incoming: IncomingChannel = Defragmentizer::new( context.chain_info.maximum_net_message_size as usize, demuxer, ); From 0ee79d50c1e86181eebe18ec39cf2c4070010b67 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 12:23:27 +0100 Subject: [PATCH 306/735] Remove unused imports across networking component --- node/src/components/network.rs | 1 - node/src/components/network/connection_id.rs | 9 ++------- node/src/components/network/message.rs | 4 ++-- 3 files changed, 4 insertions(+), 10 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 7a9648d7aa..fa3f91e839 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -73,7 +73,6 @@ use rand::{ seq::{IteratorRandom, SliceRandom}, Rng, }; -use serde::{Deserialize, Serialize}; use strum::EnumCount; use tokio::{ net::TcpStream, diff --git a/node/src/components/network/connection_id.rs b/node/src/components/network/connection_id.rs index 646a1d8279..692838ba92 100644 --- a/node/src/components/network/connection_id.rs +++ b/node/src/components/network/connection_id.rs @@ -8,24 +8,19 @@ use std::{ convert::TryFrom, fmt::{self, Display, Formatter}, - pin::Pin, - sync::{Arc, Weak}, }; -use bytes::{Bytes, BytesMut}; #[cfg(test)] use casper_types::testing::TestRng; use openssl::ssl::SslRef; -use pin_project::pin_project; #[cfg(test)] use rand::RngCore; use static_assertions::const_assert; -use tokio_serde::{Deserializer, Serializer}; -use tracing::{trace, warn}; +use tracing::warn; use casper_hashing::Digest; -use super::{tls::KeyFingerprint, Message, Metrics, Payload}; +use super::tls::KeyFingerprint; use crate::{types::NodeId, utils}; /// Lazily-evaluated network message ID generator. diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 0319162f16..9946ce7c22 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -119,8 +119,8 @@ impl Message

{ match self { Message::Handshake { .. } => Channel::Network, Message::Payload(payload) => payload.get_channel(), - Message::Ping { nonce } => Channel::Network, - Message::Pong { nonce } => Channel::Network, + Message::Ping { .. } => Channel::Network, + Message::Pong { .. } => Channel::Network, } } } From f06ee4eefcf7267f7d0aa21277a1130340dcf5a2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 12:24:55 +0100 Subject: [PATCH 307/735] Remove `tokio-serde`, as it is no longer required --- node/Cargo.toml | 1 - 1 file changed, 1 deletion(-) diff --git a/node/Cargo.toml b/node/Cargo.toml index 714a1fff46..93a56d2d9c 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -80,7 +80,6 @@ tempfile = "3" thiserror = "1" tokio = { version = "1", features = ["macros", "net", "rt-multi-thread", "sync", "time"] } tokio-openssl = "0.6.1" -tokio-serde = { version = "0.8.0", features = ["bincode"] } tokio-stream = { version = "0.1.4", features = ["sync"] } tokio-util = { version = "0.6.4", features = ["codec", "compat"] } toml = "0.5.6" From b7bb361de71b5c6a28fb243c2e454a680b20b456 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 14:51:15 +0100 Subject: [PATCH 308/735] Output full path when failing to load resources --- node/src/utils/external.rs | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/node/src/utils/external.rs b/node/src/utils/external.rs index 399cd7513b..47442ac49d 100644 --- a/node/src/utils/external.rs +++ b/node/src/utils/external.rs @@ -93,10 +93,11 @@ pub trait Loadable: Sized { /// Load a test-only instance from the local path. #[cfg(test)] fn from_resources>(rel_path: P) -> Self { - Self::from_path(RESOURCES_PATH.join(rel_path.as_ref())).unwrap_or_else(|error| { + let full_path = RESOURCES_PATH.join(rel_path.as_ref()); + Self::from_path(&full_path).unwrap_or_else(|error| { panic!( "could not load resources from {}: {}", - rel_path.as_ref().display(), + full_path.display(), error ) }) From ebf72c774183a4ac0b9bc8dcaa44ac7227e53fcd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 15:24:42 +0100 Subject: [PATCH 309/735] Fix crucial bug causing the networking component to be immediately shutdown after launch --- node/src/components/network.rs | 4 +--- node/src/utils/fuse.rs | 5 ++++- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index fa3f91e839..a03800f7d3 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -365,14 +365,12 @@ where // which we need to shutdown cleanly later on. info!(%local_addr, %public_addr, %protocol_version, "starting server background task"); - let shutdown_fuse = DropSwitch::new(ObservableFuse::new()); - let context = self.context.clone(); self.server_join_handle = Some(tokio::spawn( tasks::server( context, tokio::net::TcpListener::from_std(listener).map_err(Error::ListenerConversion)?, - shutdown_fuse.inner().clone(), + self.shutdown_fuse.inner().clone(), ) .in_current_span(), )); diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs index 1fa431b7c6..0466412b13 100644 --- a/node/src/utils/fuse.rs +++ b/node/src/utils/fuse.rs @@ -118,7 +118,10 @@ impl Fuse for ObservableFuse { } /// A wrapper for a fuse that will cause it to be set when dropped. -#[derive(DataSize, Debug, Clone)] +// Note: Do not implement/derive `Clone` for `DropSwitch`, as this is a massive footgun. Creating a +// new instance explicitly is safer, as it avoid unintentially trigger the entire switch from +// after having created it on the stack and passed on a clone instance. +#[derive(DataSize, Debug)] pub(crate) struct DropSwitch(T) where T: Fuse; From 85f556df3936ab924a962c45b1c3ec74e55a7f2b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 15:48:51 +0100 Subject: [PATCH 310/735] Fix remaining issues with dead code only present in test configuration --- node/src/components/network/connection_id.rs | 3 +++ 1 file changed, 3 insertions(+) diff --git a/node/src/components/network/connection_id.rs b/node/src/components/network/connection_id.rs index 692838ba92..9467fc68ad 100644 --- a/node/src/components/network/connection_id.rs +++ b/node/src/components/network/connection_id.rs @@ -129,6 +129,7 @@ impl ConnectionId { /// /// The `flag` should be created using the [`Role::in_flag`] or [`Role::out_flag`] method and /// must be created accordingly (`out_flag` when serializing, `in_flag` when deserializing). + #[allow(dead_code)] // TODO: Re-add if necessary when connection packet tracing is readded. fn create_trace_id(&self, flag: u8, count: u64) -> TraceId { // Copy the basic network ID. let mut buffer = self.0; @@ -174,6 +175,7 @@ impl ConnectionId { /// Message sending direction. #[derive(Copy, Clone, Debug)] #[repr(u8)] +#[allow(dead_code)] // TODO: Re-add if necessary when connection packet tracing is readded. pub(super) enum Role { /// Dialer, i.e. initiator of the connection. Dialer, @@ -181,6 +183,7 @@ pub(super) enum Role { Listener, } +#[allow(dead_code)] // TODO: Re-add if necessary when connection packet tracing is readded. impl Role { /// Returns a flag suitable for hashing incoming messages. #[inline] From acd46a91e92814111dba57dfbb4e3b5b4426ca01 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 15:52:14 +0100 Subject: [PATCH 311/735] Fix remaining post-merge clippy lints --- node/src/components/network/handshake.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/components/network/handshake.rs b/node/src/components/network/handshake.rs index 64180e609f..d6bdee9779 100644 --- a/node/src/components/network/handshake.rs +++ b/node/src/components/network/handshake.rs @@ -77,7 +77,7 @@ where async move { stream.write_all(&(data.len() as u32).to_ne_bytes()).await?; - stream.write_all(&data).await?; + stream.write_all(data).await?; stream.flush().await?; Ok(()) } From 0d18fe0f45a063ddd7abb706a259b6f307f27c3a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 3 Feb 2023 15:55:48 +0100 Subject: [PATCH 312/735] Restore varying size network connection test to its former glory --- node/src/components/network/tests.rs | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index 3f843a111d..098f9ed1b7 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -444,8 +444,7 @@ async fn check_varying_size_network_connects() { let mut rng = crate::new_rng(); // Try with a few predefined sets of network sizes. - // for &number_of_nodes in &[2u16, 3, 5, 9, 15] { - for &number_of_nodes in &[3u16] { + for &number_of_nodes in &[2u16, 3, 5, 9, 15] { info!( number_of_nodes, "begin varying size network connection test" From 40877590ab275ab2535684ce91d4fba1b5232bbf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Mar 2023 16:13:08 +0100 Subject: [PATCH 313/735] Make event stream server use a shutdown fuse --- node/src/components/event_stream_server.rs | 18 ++++++++---------- .../event_stream_server/http_server.rs | 10 ++++++---- node/src/utils/fuse.rs | 7 +++++++ 3 files changed, 21 insertions(+), 14 deletions(-) diff --git a/node/src/components/event_stream_server.rs b/node/src/components/event_stream_server.rs index 6f03e5320d..306d75ad89 100644 --- a/node/src/components/event_stream_server.rs +++ b/node/src/components/event_stream_server.rs @@ -31,10 +31,7 @@ mod tests; use std::{fmt::Debug, net::SocketAddr, path::PathBuf, sync::Arc}; use datasize::DataSize; -use tokio::sync::{ - mpsc::{self, UnboundedSender}, - oneshot, -}; +use tokio::sync::mpsc::{self, UnboundedSender}; use tracing::{error, info, warn}; use warp::Filter; @@ -46,7 +43,7 @@ use crate::{ effect::{EffectBuilder, Effects}, reactor::main_reactor::MainEvent, types::JsonBlock, - utils::{self, ListeningError}, + utils::{self, ListeningError, ObservableFuse}, NodeRng, }; pub use config::Config; @@ -127,13 +124,14 @@ impl EventStreamServer { self.config.max_concurrent_subscribers, ); - let (server_shutdown_sender, shutdown_receiver) = oneshot::channel::<()>(); + let shutdown_fuse = ObservableFuse::new(); let (listening_address, server_with_shutdown) = warp::serve(sse_filter.with(warp::cors().allow_any_origin())) - .try_bind_with_graceful_shutdown(required_address, async { - shutdown_receiver.await.ok(); - }) + .try_bind_with_graceful_shutdown( + required_address, + shutdown_fuse.clone().wait_owned(), + ) .map_err(|error| ListeningError::Listen { address: required_address, error: Box::new(error), @@ -147,7 +145,7 @@ impl EventStreamServer { self.config.clone(), self.api_version, server_with_shutdown, - server_shutdown_sender, + shutdown_fuse, sse_data_receiver, event_broadcaster, new_subscriber_info_receiver, diff --git a/node/src/components/event_stream_server/http_server.rs b/node/src/components/event_stream_server/http_server.rs index 1712f50ff1..0502a01370 100644 --- a/node/src/components/event_stream_server/http_server.rs +++ b/node/src/components/event_stream_server/http_server.rs @@ -1,7 +1,7 @@ use futures::{future, Future, FutureExt}; use tokio::{ select, - sync::{broadcast, mpsc, oneshot}, + sync::{broadcast, mpsc}, task, }; use tracing::{info, trace}; @@ -9,6 +9,8 @@ use wheelbuf::WheelBuf; use casper_types::ProtocolVersion; +use crate::utils::{Fuse, ObservableFuse}; + use super::{ sse_server::{BroadcastChannelMessage, Id, NewSubscriberInfo, ServerSentEvent}, Config, EventIndex, SseData, @@ -17,7 +19,7 @@ use super::{ /// Run the HTTP server. /// /// * `server_with_shutdown` is the actual server as a future which can be gracefully shut down. -/// * `server_shutdown_sender` is the channel by which the server will be notified to shut down. +/// * `shutdown_fuse` is the fuse by which the server will be notified to shut down. /// * `data_receiver` will provide the server with local events which should then be sent to all /// subscribed clients. /// * `broadcaster` is used by the server to send events to each subscribed client after receiving @@ -29,7 +31,7 @@ pub(super) async fn run( config: Config, api_version: ProtocolVersion, server_with_shutdown: impl Future + Send + 'static, - server_shutdown_sender: oneshot::Sender<()>, + shutdown_fuse: ObservableFuse, mut data_receiver: mpsc::UnboundedReceiver<(EventIndex, SseData)>, broadcaster: broadcast::Sender, mut new_subscriber_info_receiver: mpsc::UnboundedReceiver, @@ -117,7 +119,7 @@ pub(super) async fn run( // Kill the event-stream handlers, and shut down the server. let _ = broadcaster.send(BroadcastChannelMessage::Shutdown); - let _ = server_shutdown_sender.send(()); + let _ = shutdown_fuse.set(); trace!("Event stream server stopped"); } diff --git a/node/src/utils/fuse.rs b/node/src/utils/fuse.rs index 0466412b13..0974585dff 100644 --- a/node/src/utils/fuse.rs +++ b/node/src/utils/fuse.rs @@ -108,6 +108,13 @@ impl ObservableFuse { notified.await; } + + /// Owned wait function. + /// + /// Like wait, but owns `self`, thus it can be called and passed around with a static lifetime. + pub(crate) async fn wait_owned(self) { + self.wait().await; + } } impl Fuse for ObservableFuse { From 6899dfc9f113a637053cb001d213c179893a3aad Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Mar 2023 16:19:41 +0100 Subject: [PATCH 314/735] Make the REST server use shutdown fuses --- node/src/components/rest_server.rs | 14 +++++++------- node/src/components/rest_server/http_server.rs | 13 ++++--------- 2 files changed, 11 insertions(+), 16 deletions(-) diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index 793e278785..a5526a6434 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -27,7 +27,7 @@ use std::{fmt::Debug, time::Instant}; use datasize::DataSize; use futures::{future::BoxFuture, join, FutureExt}; -use tokio::{sync::oneshot, task::JoinHandle}; +use tokio::task::JoinHandle; use tracing::{debug, error, info, warn}; use casper_types::ProtocolVersion; @@ -48,7 +48,7 @@ use crate::{ }, reactor::{main_reactor::MainEvent, Finalize}, types::{ChainspecInfo, StatusFeed}, - utils::{self, ListeningError}, + utils::{self, DropSwitch, Fuse, ListeningError, ObservableFuse}, NodeRng, }; pub use config::Config; @@ -92,7 +92,7 @@ impl ReactorEventT for REv where pub(crate) struct InnerRestServer { /// When the message is sent, it signals the server loop to exit cleanly. #[data_size(skip)] - shutdown_sender: oneshot::Sender<()>, + shutdown_fuse: DropSwitch, /// The task handle which will only join once the server loop has exited. #[data_size(skip)] server_join_handle: Option>, @@ -284,21 +284,21 @@ where effect_builder: EffectBuilder, ) -> Result, Self::Error> { let cfg = &self.config; - let (shutdown_sender, shutdown_receiver) = oneshot::channel::<()>(); + let shutdown_fuse = ObservableFuse::new(); let builder = utils::start_listening(&cfg.address)?; let server_join_handle = Some(tokio::spawn(http_server::run( builder, effect_builder, self.api_version, - shutdown_receiver, + shutdown_fuse.clone(), cfg.qps_limit, ))); let node_startup_instant = self.node_startup_instant; let network_name = self.network_name.clone(); self.inner_rest = Some(InnerRestServer { - shutdown_sender, + shutdown_fuse: DropSwitch::new(shutdown_fuse), server_join_handle, node_startup_instant, network_name, @@ -312,7 +312,7 @@ impl Finalize for RestServer { fn finalize(self) -> BoxFuture<'static, ()> { async { if let Some(mut rest_server) = self.inner_rest { - let _ = rest_server.shutdown_sender.send(()); + let _ = rest_server.shutdown_fuse.inner().set(); // Wait for the server to exit cleanly. if let Some(join_handle) = rest_server.server_join_handle.take() { diff --git a/node/src/components/rest_server/http_server.rs b/node/src/components/rest_server/http_server.rs index b8c86f6544..a002534ffb 100644 --- a/node/src/components/rest_server/http_server.rs +++ b/node/src/components/rest_server/http_server.rs @@ -2,7 +2,6 @@ use std::{convert::Infallible, time::Duration}; use futures::{future, TryFutureExt}; use hyper::server::{conn::AddrIncoming, Builder}; -use tokio::sync::oneshot; use tower::builder::ServiceBuilder; use tracing::{info, warn}; use warp::Filter; @@ -10,16 +9,14 @@ use warp::Filter; use casper_types::ProtocolVersion; use super::{filters, ReactorEventT}; -use crate::effect::EffectBuilder; +use crate::{effect::EffectBuilder, utils::ObservableFuse}; /// Run the REST HTTP server. -/// -/// A message received on `shutdown_receiver` will cause the server to exit cleanly. pub(super) async fn run( builder: Builder, effect_builder: EffectBuilder, api_version: ProtocolVersion, - shutdown_receiver: oneshot::Receiver<()>, + shutdown_fuse: ObservableFuse, qps_limit: u64, ) { // REST filters. @@ -39,7 +36,7 @@ pub(super) async fn run( .with(warp::cors().allow_any_origin()), ); - // Start the server, passing a oneshot receiver to allow the server to be shut down gracefully. + // Start the server, passing a fuse to allow the server to be shut down gracefully. let make_svc = hyper::service::make_service_fn(move |_| future::ok::<_, Infallible>(service.clone())); @@ -52,9 +49,7 @@ pub(super) async fn run( // Shutdown the server gracefully. let _ = server - .with_graceful_shutdown(async { - shutdown_receiver.await.ok(); - }) + .with_graceful_shutdown(shutdown_fuse.wait_owned()) .map_err(|error| { warn!(%error, "error running REST server"); }) From c00703019495d9e2e1a45f0e29d114309aa613d1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Mar 2023 16:22:51 +0100 Subject: [PATCH 315/735] Make rpc server also use shutdown fuses instead of oneshot channels --- node/src/components/rpc_server/rpcs.rs | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/node/src/components/rpc_server/rpcs.rs b/node/src/components/rpc_server/rpcs.rs index 5932004989..3377a0bead 100644 --- a/node/src/components/rpc_server/rpcs.rs +++ b/node/src/components/rpc_server/rpcs.rs @@ -21,7 +21,6 @@ use hyper::server::{conn::AddrIncoming, Builder}; use schemars::JsonSchema; use serde::{Deserialize, Serialize}; use serde_json::Value; -use tokio::sync::oneshot; use tower::ServiceBuilder; use tracing::info; use warp::Filter; @@ -31,6 +30,7 @@ use casper_types::ProtocolVersion; use super::{ReactorEventT, RpcRequest}; use crate::effect::EffectBuilder; +use crate::utils::{Fuse, ObservableFuse}; pub use common::ErrorData; use docs::DocExample; pub use error_code::ErrorCode; @@ -288,13 +288,11 @@ pub(super) async fn run( let server = builder.serve(make_svc); info!(address = %server.local_addr(), "started {} server", server_name); - let (shutdown_sender, shutdown_receiver) = oneshot::channel::<()>(); - let server_with_shutdown = server.with_graceful_shutdown(async { - shutdown_receiver.await.ok(); - }); + let shutdown_fuse = ObservableFuse::new(); + let server_with_shutdown = server.with_graceful_shutdown(shutdown_fuse.clone().wait_owned()); let _ = tokio::spawn(server_with_shutdown).await; - let _ = shutdown_sender.send(()); + let _ = shutdown_fuse.set(); info!("{} server shut down", server_name); } From 59a6752b8ab3a8fac453aa80c7fa896eab9d7644 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Mar 2023 16:35:49 +0100 Subject: [PATCH 316/735] Fix issue with wrong type in test reactor code --- node/src/testing/network.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index 47f4d7378a..48f41a873d 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -460,7 +460,9 @@ where } /// Returns the internal map of nodes, mutable. - pub(crate) fn nodes_mut(&mut self) -> &mut HashMap>> { + pub(crate) fn nodes_mut( + &mut self, + ) -> &mut HashMap>>> { &mut self.nodes } From 25adbfc64866d91e92dfdf9c733bf8c4c15535ad Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Mar 2023 16:36:03 +0100 Subject: [PATCH 317/735] Update `Cargo.lock` --- Cargo.lock | 93 ++++++++++++++++++++++++++++-------------------------- 1 file changed, 49 insertions(+), 44 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index e350ff0215..1626c2f5ea 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -109,6 +109,12 @@ dependencies = [ "syn 1.0.107", ] +[[package]] +name = "array-init" +version = "2.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "3d62b7694a562cdf5a74227903507c56ab2cc8bdd1f781ed5cb4cf9c9f810bfc" + [[package]] name = "assert-json-diff" version = "2.0.2" @@ -535,6 +541,7 @@ dependencies = [ "ansi_term", "anyhow", "aquamarine", + "array-init", "assert-json-diff", "assert_matches", "async-trait", @@ -568,6 +575,7 @@ dependencies = [ "linked-hash-map", "lmdb-rkv", "log", + "muxink", "num", "num-derive", "num-rational 0.4.1", @@ -601,12 +609,12 @@ dependencies = [ "static_assertions", "stats_alloc", "structopt", + "strum 0.24.1", "sys-info", "tempfile", "thiserror", "tokio", "tokio-openssl", - "tokio-serde", "tokio-stream", "tokio-util 0.6.10", "toml", @@ -657,7 +665,7 @@ dependencies = [ "serde_bytes", "serde_json", "serde_test", - "strum", + "strum 0.21.0", "tempfile", "thiserror", "uint", @@ -1348,18 +1356,6 @@ dependencies = [ "zeroize", ] -[[package]] -name = "educe" -version = "0.4.20" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cb0188e3c3ba8df5753894d54461f0e39bc91741dc5b22e1c46999ec2c71f4e4" -dependencies = [ - "enum-ordinalize", - "proc-macro2 1.0.50", - "quote 1.0.23", - "syn 1.0.107", -] - [[package]] name = "ee-1071-regression" version = "0.1.0" @@ -1622,20 +1618,6 @@ dependencies = [ "syn 1.0.107", ] -[[package]] -name = "enum-ordinalize" -version = "3.1.12" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a62bb1df8b45ecb7ffa78dca1c17a438fb193eb083db0b1b494d2a61bcb5096a" -dependencies = [ - "num-bigint 0.4.3", - "num-traits", - "proc-macro2 1.0.50", - "quote 1.0.23", - "rustc_version", - "syn 1.0.107", -] - [[package]] name = "env_logger" version = "0.8.4" @@ -2757,6 +2739,20 @@ dependencies = [ "casper-types 1.5.0", ] +[[package]] +name = "muxink" +version = "0.1.0" +dependencies = [ + "bytes", + "futures", + "rand 0.8.5", + "thiserror", + "tokio", + "tokio-stream", + "tokio-util 0.7.4", + "tracing", +] + [[package]] name = "named-dictionary-test" version = "0.1.0" @@ -4346,7 +4342,16 @@ version = "0.21.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2" dependencies = [ - "strum_macros", + "strum_macros 0.21.1", +] + +[[package]] +name = "strum" +version = "0.24.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "063e6045c0e62079840579a7e47a355ae92f60eb74daaf156fb1e84ba164e63f" +dependencies = [ + "strum_macros 0.24.3", ] [[package]] @@ -4361,6 +4366,19 @@ dependencies = [ "syn 1.0.107", ] +[[package]] +name = "strum_macros" +version = "0.24.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59" +dependencies = [ + "heck 0.4.0", + "proc-macro2 1.0.50", + "quote 1.0.23", + "rustversion", + "syn 1.0.107", +] + [[package]] name = "subtle" version = "2.4.1" @@ -4597,21 +4615,6 @@ dependencies = [ "tokio", ] -[[package]] -name = "tokio-serde" -version = "0.8.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "911a61637386b789af998ee23f50aa30d5fd7edcec8d6d3dedae5e5815205466" -dependencies = [ - "bincode", - "bytes", - "educe", - "futures-core", - "futures-sink", - "pin-project", - "serde", -] - [[package]] name = "tokio-stream" version = "0.1.11" @@ -4644,6 +4647,7 @@ checksum = "36943ee01a6d67977dd3f84a5a1d2efeb4ada3a1ae771cadfaa535d9d9fc6507" dependencies = [ "bytes", "futures-core", + "futures-io", "futures-sink", "log", "pin-project-lite", @@ -4658,6 +4662,7 @@ checksum = "0bb2e075f03b3d66d8d8785356224ba688d2906a371015e225beeb65ca92c740" dependencies = [ "bytes", "futures-core", + "futures-io", "futures-sink", "pin-project-lite", "tokio", From bfa26a45960d20d4a6dbc9b3991424fdfaab9ff8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 13 Mar 2023 16:40:01 +0100 Subject: [PATCH 318/735] Fix formatting mismatch --- node/src/components/rpc_server/rpcs.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/node/src/components/rpc_server/rpcs.rs b/node/src/components/rpc_server/rpcs.rs index 3377a0bead..d2ae4e0354 100644 --- a/node/src/components/rpc_server/rpcs.rs +++ b/node/src/components/rpc_server/rpcs.rs @@ -29,8 +29,10 @@ use casper_json_rpc::{Error, Params, RequestHandlers, RequestHandlersBuilder, Re use casper_types::ProtocolVersion; use super::{ReactorEventT, RpcRequest}; -use crate::effect::EffectBuilder; -use crate::utils::{Fuse, ObservableFuse}; +use crate::{ + effect::EffectBuilder, + utils::{Fuse, ObservableFuse}, +}; pub use common::ErrorData; use docs::DocExample; pub use error_code::ErrorCode; From bd453b337ca6f8aceb617afbb464ad8a9c5a940c Mon Sep 17 00:00:00 2001 From: Fraser Hutchison Date: Mon, 13 Mar 2023 17:30:33 +0000 Subject: [PATCH 319/735] fix clippy warnings --- node/src/components/event_stream_server/http_server.rs | 2 +- node/src/components/rest_server.rs | 2 +- node/src/components/rpc_server/rpcs.rs | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/node/src/components/event_stream_server/http_server.rs b/node/src/components/event_stream_server/http_server.rs index 0502a01370..66098c5501 100644 --- a/node/src/components/event_stream_server/http_server.rs +++ b/node/src/components/event_stream_server/http_server.rs @@ -119,7 +119,7 @@ pub(super) async fn run( // Kill the event-stream handlers, and shut down the server. let _ = broadcaster.send(BroadcastChannelMessage::Shutdown); - let _ = shutdown_fuse.set(); + shutdown_fuse.set(); trace!("Event stream server stopped"); } diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index a5526a6434..a15e3f984c 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -312,7 +312,7 @@ impl Finalize for RestServer { fn finalize(self) -> BoxFuture<'static, ()> { async { if let Some(mut rest_server) = self.inner_rest { - let _ = rest_server.shutdown_fuse.inner().set(); + rest_server.shutdown_fuse.inner().set(); // Wait for the server to exit cleanly. if let Some(join_handle) = rest_server.server_join_handle.take() { diff --git a/node/src/components/rpc_server/rpcs.rs b/node/src/components/rpc_server/rpcs.rs index d2ae4e0354..9ea4daaf83 100644 --- a/node/src/components/rpc_server/rpcs.rs +++ b/node/src/components/rpc_server/rpcs.rs @@ -294,7 +294,7 @@ pub(super) async fn run( let server_with_shutdown = server.with_graceful_shutdown(shutdown_fuse.clone().wait_owned()); let _ = tokio::spawn(server_with_shutdown).await; - let _ = shutdown_fuse.set(); + shutdown_fuse.set(); info!("{} server shut down", server_name); } From f38c1b025b7775f6fbfc0b6f3d616cae3ab56588 Mon Sep 17 00:00:00 2001 From: Ed Hastings Date: Mon, 6 Mar 2023 00:54:23 -0800 Subject: [PATCH 320/735] fixing audit remove_dir_all --- Cargo.lock | 99 +++++++++++++++---- execution_engine/Cargo.toml | 2 +- .../test_support/Cargo.toml | 2 +- execution_engine_testing/tests/Cargo.toml | 2 +- hashing/Cargo.toml | 2 +- node/Cargo.toml | 2 +- types/Cargo.toml | 2 +- 7 files changed, 88 insertions(+), 23 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 1626c2f5ea..6313ada9ca 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1653,6 +1653,27 @@ dependencies = [ "serde", ] +[[package]] +name = "errno" +version = "0.2.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1" +dependencies = [ + "errno-dragonfly", + "libc", + "winapi", +] + +[[package]] +name = "errno-dragonfly" +version = "0.1.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf" +dependencies = [ + "cc", + "libc", +] + [[package]] name = "expensive-calculation" version = "0.1.0" @@ -2387,6 +2408,16 @@ dependencies = [ "cfg-if 1.0.0", ] +[[package]] +name = "io-lifetimes" +version = "1.0.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1abeb7a0dd0f8181267ff8adc397075586500b81b28a73e8a0208b00fc170fb3" +dependencies = [ + "libc", + "windows-sys 0.45.0", +] + [[package]] name = "ipnet" version = "2.7.1" @@ -2518,6 +2549,12 @@ version = "0.5.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f" +[[package]] +name = "linux-raw-sys" +version = "0.1.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4" + [[package]] name = "list-authorization-keys" version = "0.1.0" @@ -2710,7 +2747,7 @@ dependencies = [ "libc", "log", "wasi", - "windows-sys", + "windows-sys 0.42.0", ] [[package]] @@ -3830,15 +3867,6 @@ dependencies = [ "casper-types 1.5.0", ] -[[package]] -name = "remove_dir_all" -version = "0.5.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7" -dependencies = [ - "winapi", -] - [[package]] name = "reqwest" version = "0.11.14" @@ -3923,6 +3951,20 @@ dependencies = [ "semver", ] +[[package]] +name = "rustix" +version = "0.36.9" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "fd5c6ff11fecd55b40746d1995a02f2eb375bf8c00d192d521ee09f42bef37bc" +dependencies = [ + "bitflags", + "errno", + "io-lifetimes", + "libc", + "linux-raw-sys", + "windows-sys 0.45.0", +] + [[package]] name = "rustls-pemfile" version = "0.2.1" @@ -3977,7 +4019,7 @@ version = "0.1.21" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "713cfb06c7059f3588fb8044c0fad1d09e3c01d225e25b9220dbfdcf16dbb1b3" dependencies = [ - "windows-sys", + "windows-sys 0.42.0", ] [[package]] @@ -4439,16 +4481,15 @@ dependencies = [ [[package]] name = "tempfile" -version = "3.3.0" +version = "3.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5cdb1ef4eaeeaddc8fbd371e5017057064af0911902ef36b39801f67cc6d79e4" +checksum = "af18f7ae1acd354b992402e9ec5864359d693cd8a79dcbef59f76891701c1e95" dependencies = [ "cfg-if 1.0.0", "fastrand", - "libc", "redox_syscall", - "remove_dir_all", - "winapi", + "rustix", + "windows-sys 0.42.0", ] [[package]] @@ -4579,7 +4620,7 @@ dependencies = [ "pin-project-lite", "socket2", "tokio-macros", - "windows-sys", + "windows-sys 0.42.0", ] [[package]] @@ -5431,6 +5472,30 @@ dependencies = [ "windows_x86_64_msvc", ] +[[package]] +name = "windows-sys" +version = "0.45.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0" +dependencies = [ + "windows-targets", +] + +[[package]] +name = "windows-targets" +version = "0.42.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8e2522491fbfcd58cc84d47aeb2958948c4b8982e9a2d8a2a35bbaed431390e7" +dependencies = [ + "windows_aarch64_gnullvm", + "windows_aarch64_msvc", + "windows_i686_gnu", + "windows_i686_msvc", + "windows_x86_64_gnu", + "windows_x86_64_gnullvm", + "windows_x86_64_msvc", +] + [[package]] name = "windows_aarch64_gnullvm" version = "0.42.1" diff --git a/execution_engine/Cargo.toml b/execution_engine/Cargo.toml index 614b5713b1..e0b981b39c 100644 --- a/execution_engine/Cargo.toml +++ b/execution_engine/Cargo.toml @@ -54,7 +54,7 @@ assert_matches = "1.3.0" casper-types = { path = "../types", features = ["datasize", "json-schema", "testing"] } criterion = "0.3.5" proptest = "1.0.0" -tempfile = "3.1.0" +tempfile = "3.4.0" [features] default = ["gens"] diff --git a/execution_engine_testing/test_support/Cargo.toml b/execution_engine_testing/test_support/Cargo.toml index f8a3a452bf..6ce7f26863 100644 --- a/execution_engine_testing/test_support/Cargo.toml +++ b/execution_engine_testing/test_support/Cargo.toml @@ -24,7 +24,7 @@ once_cell = "1.8.0" rand = "0.8.4" serde = { version = "1", features = ["derive", "rc"] } toml = "0.5.6" -tempfile = "3" +tempfile = "3.4.0" [dev-dependencies] version-sync = "0.9.3" diff --git a/execution_engine_testing/tests/Cargo.toml b/execution_engine_testing/tests/Cargo.toml index 20027c3a7d..bf0e5d1f3e 100644 --- a/execution_engine_testing/tests/Cargo.toml +++ b/execution_engine_testing/tests/Cargo.toml @@ -23,7 +23,7 @@ parity-wasm = "0.41.0" rand = "0.8.3" serde = "1" serde_json = "1" -tempfile = "3" +tempfile = "3.4.0" wabt = "0.10.0" wasmi = "0.8.0" regex = "1.5.4" diff --git a/hashing/Cargo.toml b/hashing/Cargo.toml index 5e4c751723..0d196237b4 100644 --- a/hashing/Cargo.toml +++ b/hashing/Cargo.toml @@ -29,6 +29,6 @@ assert_matches = "1.3.0" criterion = "0.3.5" proptest = "1.0.0" proptest-attr-macro = "1.0.0" -tempfile = "3.1.0" +tempfile = "3.4.0" serde_json = "1.0" rand = "0.8.4" diff --git a/node/Cargo.toml b/node/Cargo.toml index 93a56d2d9c..e1a3ff6998 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -76,7 +76,7 @@ stats_alloc = "0.1.8" structopt = "0.3.14" strum = { version = "0.24.1", features = ["derive"] } sys-info = "0.8.0" -tempfile = "3" +tempfile = "3.4.0" thiserror = "1" tokio = { version = "1", features = ["macros", "net", "rt-multi-thread", "sync", "time"] } tokio-openssl = "0.6.1" diff --git a/types/Cargo.toml b/types/Cargo.toml index caa4d3bd7a..d7e73eebea 100644 --- a/types/Cargo.toml +++ b/types/Cargo.toml @@ -60,7 +60,7 @@ rand_pcg = "0.3.0" serde_json = "1" serde_test = "1" strum = { version = "0.21", features = ["derive"] } -tempfile = "3" +tempfile = "3.4.0" thiserror = "1" untrusted = "0.7.1" From 44517ca3c63c85fbed298d45b5adf8b7761f309f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Feb 2023 16:10:57 +0100 Subject: [PATCH 321/735] Split incoming networking stream --- Cargo.lock | 4 ++-- node/src/components/network.rs | 20 ++++++++++---------- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 6313ada9ca..e554206f1c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4607,9 +4607,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c" [[package]] name = "tokio" -version = "1.24.2" +version = "1.25.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "597a12a59981d9e3c38d216785b0c37399f6e415e8d0712047620f189371b0bb" +checksum = "c8e00990ebabbe4c14c08aca901caed183ecd5c09562a12c824bb53d3c3fd3af" dependencies = [ "autocfg", "bytes", diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 57c559fd53..c51a1c6de5 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -75,6 +75,7 @@ use rand::{ }; use strum::EnumCount; use tokio::{ + io::ReadHalf, net::TcpStream, sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, task::JoinHandle, @@ -611,18 +612,17 @@ where // TODO: Removal of `CountingTransport` here means some functionality has to be // restored. + let (read_half, write_half) = tokio::io::split(transport); + // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the // tokio built-in version instead). The compat layer fixes that. - let compat_transport = - tokio_util::compat::TokioAsyncReadCompatExt::compat(transport); + let read_compat: Compat>> = + tokio_util::compat::TokioAsyncReadCompatExt::compat(read_half); + + let frame_reader: IncomingFrameReader = + FrameReader::new(LengthDelimited, read_compat, MESSAGE_FRAGMENT_SIZE); - // TODO: We need to split the stream here eventually. Right now, this is safe since - // the reader only uses one direction. - let carrier = Arc::new(Mutex::new(Demultiplexer::new(FrameReader::new( - LengthDelimited, - compat_transport, - MESSAGE_FRAGMENT_SIZE, - )))); + let carrier = Arc::new(Mutex::new(Demultiplexer::new(frame_reader))); // Now we can start the message reader. let boxed_span = Box::new(span.clone()); @@ -1361,7 +1361,7 @@ type OutgoingCarrierError = MultiplexerError; type OutgoingChannel = Fragmentizer, Bytes>; /// The reader for incoming length-prefixed frames. -type IncomingFrameReader = FrameReader>; +type IncomingFrameReader = FrameReader>>; /// The demultiplexer that seperates channels sent through the underlying frame reader. type IncomingCarrier = Demultiplexer; From 6abad26b02b833e38c1dbf57f9ad787f4922cb66 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 10 Feb 2023 17:30:37 +0100 Subject: [PATCH 322/735] muxink: Add fixed-size encoding using little endianness to `muxink` for integer types --- muxink/src/framing.rs | 6 +-- muxink/src/framing/little_endian.rs | 65 +++++++++++++++++++++++++++++ 2 files changed, 67 insertions(+), 4 deletions(-) create mode 100644 muxink/src/framing/little_endian.rs diff --git a/muxink/src/framing.rs b/muxink/src/framing.rs index 561027672f..ec0b27d8c5 100644 --- a/muxink/src/framing.rs +++ b/muxink/src/framing.rs @@ -13,6 +13,7 @@ //! length-prefix. pub mod length_delimited; +pub mod little_endian; use std::fmt::Debug; @@ -38,10 +39,7 @@ pub trait FrameDecoder { /// Frame encoder. /// /// A frame encoder encodes a frame into a representation suitable for writing to a bytestream. -pub trait FrameEncoder -where - T: Buf, -{ +pub trait FrameEncoder { /// Encoding error. type Error: std::error::Error + Send + Sync + 'static; diff --git a/muxink/src/framing/little_endian.rs b/muxink/src/framing/little_endian.rs new file mode 100644 index 0000000000..0f69275bd3 --- /dev/null +++ b/muxink/src/framing/little_endian.rs @@ -0,0 +1,65 @@ +/// Little-endian integer encoding. +use std::{convert::Infallible, marker::PhantomData}; + +use super::FrameDecoder; + +/// Fixed size framing for integers. +/// +/// Integers encoded through this codec come out as little endian fixed size bytes; encoding and +/// framing thus happens in a single step. Frame decoding merely splits off an appropriately sized +/// `Bytes` slice, but does not restore the integer from little endian encoding. +#[derive(Debug, Default)] +pub struct LittleEndian { + /// Phantom data pinning the accepted type. + /// + /// While an encoder would not need to restrict `T`, it still is limited to a single type for + /// type safety. + _phantom: PhantomData, +} + +macro_rules! int_codec { + ($ty:ty) => { + impl crate::framing::FrameEncoder<$ty> for LittleEndian<$ty> { + // Encoding can never fail. + type Error = Infallible; + + // We use a cursor, which is just a single `usize` of overhead when sending the encoded + // number. + type Output = std::io::Cursor<[u8; (<$ty>::BITS / 8) as usize]>; + + fn encode_frame(&mut self, buffer: $ty) -> Result { + Ok(std::io::Cursor::new(buffer.to_le_bytes())) + } + } + + impl FrameDecoder for LittleEndian<$ty> { + // Decoding cannot fail, as every bitstring of correct length is a valid integer. + type Error = Infallible; + + fn decode_frame( + &mut self, + buffer: &mut bytes::BytesMut, + ) -> super::DecodeResult { + // Number of bytes to represent the given type. + const LEN: usize = (<$ty>::BITS / 8) as usize; + + if buffer.len() < LEN { + super::DecodeResult::Remaining(LEN - buffer.len()) + } else { + let data = buffer.split_to(LEN); + super::DecodeResult::Item(data.freeze()) + } + } + } + }; +} + +// Implement for known integer types. +int_codec!(u16); +int_codec!(u32); +int_codec!(u64); +int_codec!(u128); +int_codec!(i16); +int_codec!(i32); +int_codec!(i64); +int_codec!(i128); From c9e2c958d05797f5787fb238792804efb2ba9e78 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 11 Feb 2023 18:12:47 +0100 Subject: [PATCH 323/735] muxink: Add testcases for `LittleEndian` frame encoding --- muxink/src/framing/little_endian.rs | 61 +++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/muxink/src/framing/little_endian.rs b/muxink/src/framing/little_endian.rs index 0f69275bd3..44f5a5343d 100644 --- a/muxink/src/framing/little_endian.rs +++ b/muxink/src/framing/little_endian.rs @@ -63,3 +63,64 @@ int_codec!(i16); int_codec!(i32); int_codec!(i64); int_codec!(i128); + +#[cfg(test)] +mod tests { + use futures::io::Cursor; + + use crate::{framing::FrameEncoder, io::FrameReader, testing::collect_stream_results}; + + use super::LittleEndian; + + /// Decodes the input string, returning the decoded frames and the remainder. + fn run_decoding_stream(input: &[u8], chomp_size: usize) -> (Vec>, Vec) { + let stream = Cursor::new(input); + + let mut reader = FrameReader::new(LittleEndian::::default(), stream, chomp_size); + + let decoded: Vec<_> = collect_stream_results(&mut reader) + .into_iter() + .map(|bytes| bytes.into_iter().collect::>()) + .collect(); + + // Extract the remaining data. + let (_decoder, cursor, buffer) = reader.into_parts(); + let mut remaining = Vec::new(); + remaining.extend(buffer.into_iter()); + let cursor_pos = cursor.position() as usize; + remaining.extend(&cursor.into_inner()[cursor_pos..]); + + (decoded, remaining) + } + + #[test] + fn simple_stream_decoding_works() { + for chomp_size in 1..=1024 { + let input = b"\x01\x02\x03\x04\xAA\xBB\xCC\xDD"; + let (decoded, remainder) = run_decoding_stream(input, chomp_size); + assert_eq!(decoded, &[b"\x01\x02\x03\x04", b"\xAA\xBB\xCC\xDD"]); + assert!(remainder.is_empty()); + } + } + + #[test] + fn empty_stream_is_empty() { + let input = b""; + + let (decoded, remainder) = run_decoding_stream(input, 3); + assert!(decoded.is_empty()); + assert!(remainder.is_empty()); + } + + #[test] + fn encodes_simple_cases_correctly() { + let seq = [0x01020304u32, 0xAABBCCDD]; + let outcomes: &[&[u8]] = &[b"\x04\x03\x02\x01", b"\xDD\xCC\xBB\xAA"]; + + for (input, expected) in seq.into_iter().zip(outcomes.into_iter()) { + let mut codec = LittleEndian::::default(); + let outcome = codec.encode_frame(input).expect("encoding should not fail"); + assert_eq!(outcome.get_ref(), *expected); + } + } +} From 29ef778eefef9e02c904dc7d30083ed04ae6342a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 11 Feb 2023 18:23:36 +0100 Subject: [PATCH 324/735] muxink: Remove unnecessary `F: Buf` trait bound --- muxink/src/io.rs | 3 --- 1 file changed, 3 deletions(-) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 7a3a35e188..4117822c9f 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -46,7 +46,6 @@ pub struct FrameReader { pub struct FrameWriter where E: FrameEncoder, - F: Buf, { /// The encoder used to encode outgoing frames. encoder: E, @@ -122,7 +121,6 @@ impl FrameWriter where E: FrameEncoder, >::Output: Buf, - F: Buf, { /// Creates a new frame writer with the given encoder. pub fn new(encoder: E, stream: W) -> Self { @@ -177,7 +175,6 @@ where Self: Unpin, E: FrameEncoder, >::Output: Buf, - F: Buf, W: AsyncWrite + Unpin, { type Error = io::Error; From 973cbbef3b7c86ffa5218cd5a41823042d35d4a4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 11 Feb 2023 19:20:54 +0100 Subject: [PATCH 325/735] muxink: Rename `BackpressureError` to more accurate `BackpressuredSinkError` --- muxink/src/backpressured.rs | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index c9ece79fae..c460bb6ec6 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -69,7 +69,7 @@ pub struct BackpressuredSink { /// A backpressure error. #[derive(Debug, Error)] -pub enum BackpressureError +pub enum BackpressuredSinkError where SinkErr: std::error::Error, AckErr: std::error::Error, @@ -119,20 +119,20 @@ impl BackpressuredSink { fn validate_ack( &mut self, ack_received: u64, - ) -> Result<(), BackpressureError> + ) -> Result<(), BackpressuredSinkError> where SinkErr: std::error::Error, AckErr: std::error::Error, { if ack_received > self.last_request { - return Err(BackpressureError::UnexpectedAck { + return Err(BackpressuredSinkError::UnexpectedAck { actual: ack_received, items_sent: self.last_request, }); } if ack_received + self.window_size < self.last_request { - return Err(BackpressureError::DuplicateAck { + return Err(BackpressuredSinkError::DuplicateAck { ack_received, highest: self.received_ack, }); @@ -154,7 +154,7 @@ where AckErr: std::error::Error, >::Error: std::error::Error, { - type Error = BackpressureError<>::Error, AckErr>; + type Error = BackpressuredSinkError<>::Error, AckErr>; #[inline] fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { @@ -164,14 +164,14 @@ where loop { match self_mut.ack_stream.poll_next_unpin(cx) { Poll::Ready(Some(Err(ack_err))) => { - return Poll::Ready(Err(BackpressureError::AckStreamError(ack_err))) + return Poll::Ready(Err(BackpressuredSinkError::AckStreamError(ack_err))) } Poll::Ready(Some(Ok(ack_received))) => { try_ready!(self_mut.validate_ack(ack_received)); self_mut.received_ack = max(self_mut.received_ack, ack_received); } Poll::Ready(None) => { - return Poll::Ready(Err(BackpressureError::AckStreamClosed)); + return Poll::Ready(Err(BackpressuredSinkError::AckStreamClosed)); } Poll::Pending => { // Invariant: `received_ack` is always <= `last_request`. @@ -192,7 +192,7 @@ where self_mut .inner .poll_ready_unpin(cx) - .map_err(BackpressureError::Sink) + .map_err(BackpressuredSinkError::Sink) } #[inline] @@ -205,7 +205,7 @@ where self_mut .inner .start_send_unpin(item) - .map_err(BackpressureError::Sink) + .map_err(BackpressuredSinkError::Sink) } #[inline] @@ -213,7 +213,7 @@ where self.get_mut() .inner .poll_flush_unpin(cx) - .map_err(BackpressureError::Sink) + .map_err(BackpressuredSinkError::Sink) } #[inline] @@ -221,7 +221,7 @@ where self.get_mut() .inner .poll_close_unpin(cx) - .map_err(BackpressureError::Sink) + .map_err(BackpressuredSinkError::Sink) } } @@ -456,7 +456,7 @@ mod tests { fixtures::{OneWayFixtures, TwoWayFixtures, WINDOW_SIZE}, }; - use super::{BackpressureError, BackpressuredStream, BackpressuredStreamError}; + use super::{BackpressuredSinkError, BackpressuredStream, BackpressuredStreamError}; #[test] fn backpressured_sink_lifecycle() { @@ -499,7 +499,7 @@ mod tests { assert!(matches!( bp.encode_and_send('I').now_or_never(), - Some(Err(BackpressureError::AckStreamClosed)) + Some(Err(BackpressuredSinkError::AckStreamClosed)) )); // Check all data was received correctly. @@ -713,7 +713,7 @@ mod tests { assert!(matches!( bp.encode_and_send('C').now_or_never(), - Some(Err(BackpressureError::UnexpectedAck { + Some(Err(BackpressuredSinkError::UnexpectedAck { items_sent: 2, actual: 3 })) @@ -749,7 +749,7 @@ mod tests { assert!(matches!( bp.encode_and_send('F').now_or_never(), - Some(Err(BackpressureError::DuplicateAck { + Some(Err(BackpressuredSinkError::DuplicateAck { ack_received: 1, highest: 2 })) @@ -855,7 +855,7 @@ mod tests { client.flush().await.unwrap(); // After flushing, the sink must be able to accept new items. match client.feed(item.encode()).await { - Err(BackpressureError::AckStreamClosed) => { + Err(BackpressuredSinkError::AckStreamClosed) => { return client; } Ok(_) => {} From 5ea9bf70977af420e40b12cadfcaf4a316fab62e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 8 Mar 2023 16:16:39 +0100 Subject: [PATCH 326/735] muxink: Add `fixed_size` framing codec --- muxink/src/framing.rs | 1 + muxink/src/framing/fixed_size.rs | 145 +++++++++++++++++++++++++++++++ 2 files changed, 146 insertions(+) create mode 100644 muxink/src/framing/fixed_size.rs diff --git a/muxink/src/framing.rs b/muxink/src/framing.rs index ec0b27d8c5..2c7a5a1311 100644 --- a/muxink/src/framing.rs +++ b/muxink/src/framing.rs @@ -12,6 +12,7 @@ //! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a //! length-prefix. +pub mod fixed_size; pub mod length_delimited; pub mod little_endian; diff --git a/muxink/src/framing/fixed_size.rs b/muxink/src/framing/fixed_size.rs new file mode 100644 index 0000000000..05e358b3b9 --- /dev/null +++ b/muxink/src/framing/fixed_size.rs @@ -0,0 +1,145 @@ +/// Length checking pass-through encoder/decoder. +use std::convert::Infallible; + +use bytes::{Buf, Bytes, BytesMut}; +use thiserror::Error; + +/// Fixed-size pass-through encoding/decoding. +use super::{DecodeResult, FrameDecoder, FrameEncoder}; + +/// Fixed size pass-through encoding/decoding. +/// +/// Any frame passed in for encoding is only length checked. Incoming streams are "decoded" by +/// cutting of chunks of the given length. +#[derive(Debug, Default)] +pub struct FixedSize { + /// The size of frames encoded/decoded. + size: usize, +} + +impl FixedSize { + /// Creates a new fixed size encoder. + pub fn new(size: usize) -> Self { + Self { size } + } +} + +/// An encoding error due to a size mismatch. +#[derive(Copy, Clone, Debug, Error)] +#[error("size of frame at {actual} bytes does not match expected size of {expected} bytes")] +pub struct InvalidSizeError { + /// The number of bytes expected (configured on the encoder). + expected: usize, + /// Actual size passed in. + actual: usize, +} + +impl FrameEncoder for FixedSize +where + T: Buf + Send, +{ + type Error = InvalidSizeError; + type Output = T; + + #[inline] + fn encode_frame(&mut self, buffer: T) -> Result { + if buffer.remaining() != self.size { + Err(InvalidSizeError { + expected: self.size, + actual: buffer.remaining(), + }) + } else { + Ok(buffer) + } + } +} + +impl FrameDecoder for FixedSize { + type Error = Infallible; + + #[inline] + fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { + if buffer.len() >= self.size { + DecodeResult::Item(buffer.split_to(self.size).freeze()) + } else { + DecodeResult::Remaining(self.size - buffer.len()) + } + } +} + +#[cfg(test)] +mod tests { + use bytes::Bytes; + + use crate::{framing::FrameEncoder, io::FrameReader, testing::collect_stream_results}; + + use super::FixedSize; + + /// Decodes the input string, returning the decoded frames and the remainder. + fn run_decoding_stream( + input: &[u8], + size: usize, + chomp_size: usize, + ) -> (Vec>, Vec) { + let mut reader = FrameReader::new(FixedSize::new(size), input, chomp_size); + + let decoded: Vec<_> = collect_stream_results(&mut reader) + .into_iter() + .map(|bytes| bytes.into_iter().collect::>()) + .collect(); + + // Extract the remaining data. + let (_decoder, remaining_input, buffer) = reader.into_parts(); + let mut remaining = Vec::new(); + remaining.extend(buffer.into_iter()); + remaining.extend(remaining_input); + + (decoded, remaining) + } + + #[test] + fn simple_stream_decoding_works() { + for chomp_size in 1..=1024 { + let input = b"abcdefghi"; + let (decoded, remainder) = run_decoding_stream(input, 3, chomp_size); + assert_eq!(decoded, &[b"abc", b"def", b"ghi"]); + assert!(remainder.is_empty()); + } + } + + #[test] + fn stream_decoding_with_remainder_works() { + for chomp_size in 1..=1024 { + let input = b"abcdefghijk"; + let (decoded, remainder) = run_decoding_stream(input, 3, chomp_size); + assert_eq!(decoded, &[b"abc", b"def", b"ghi"]); + assert_eq!(remainder, b"jk"); + } + } + + #[test] + fn empty_stream_is_empty() { + let input = b""; + + let (decoded, remainder) = run_decoding_stream(input, 3, 5); + assert!(decoded.is_empty()); + assert!(remainder.is_empty()); + } + + #[test] + fn encodes_simple_cases_correctly() { + let seq = &[b"abc", b"def", b"ghi"]; + + for &input in seq.into_iter() { + let mut input = Bytes::from(input.to_vec()); + let mut codec = FixedSize::new(3); + + let outcome = codec + .encode_frame(&mut input) + .expect("encoding should not fail") + .clone(); + + assert_eq!(outcome, &input); + } + } +} From 3851f6bcc6cfb8e84ebcd8aea0cd852d8e3272b3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Mar 2023 11:56:41 +0100 Subject: [PATCH 327/735] muxink: Encode integers as immediate frames --- muxink/src/framing/little_endian.rs | 17 ++++++++--------- muxink/src/lib.rs | 9 ++++++++- 2 files changed, 16 insertions(+), 10 deletions(-) diff --git a/muxink/src/framing/little_endian.rs b/muxink/src/framing/little_endian.rs index 44f5a5343d..1719f94f10 100644 --- a/muxink/src/framing/little_endian.rs +++ b/muxink/src/framing/little_endian.rs @@ -22,13 +22,10 @@ macro_rules! int_codec { impl crate::framing::FrameEncoder<$ty> for LittleEndian<$ty> { // Encoding can never fail. type Error = Infallible; + type Output = crate::ImmediateFrame<[u8; ::std::mem::size_of::<$ty>()]>; - // We use a cursor, which is just a single `usize` of overhead when sending the encoded - // number. - type Output = std::io::Cursor<[u8; (<$ty>::BITS / 8) as usize]>; - - fn encode_frame(&mut self, buffer: $ty) -> Result { - Ok(std::io::Cursor::new(buffer.to_le_bytes())) + fn encode_frame(&mut self, value: $ty) -> Result { + Ok(crate::ImmediateFrame::from(value)) } } @@ -66,6 +63,7 @@ int_codec!(i128); #[cfg(test)] mod tests { + use bytes::Buf; use futures::io::Cursor; use crate::{framing::FrameEncoder, io::FrameReader, testing::collect_stream_results}; @@ -117,10 +115,11 @@ mod tests { let seq = [0x01020304u32, 0xAABBCCDD]; let outcomes: &[&[u8]] = &[b"\x04\x03\x02\x01", b"\xDD\xCC\xBB\xAA"]; - for (input, expected) in seq.into_iter().zip(outcomes.into_iter()) { + for (input, &expected) in seq.into_iter().zip(outcomes.into_iter()) { let mut codec = LittleEndian::::default(); - let outcome = codec.encode_frame(input).expect("encoding should not fail"); - assert_eq!(outcome.get_ref(), *expected); + let mut outcome = codec.encode_frame(input).expect("encoding should not fail"); + assert_eq!(outcome.remaining(), 4); + assert_eq!(&outcome.copy_to_bytes(4), expected); } } } diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index f23638bd2d..e4984b4fbc 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -67,7 +67,7 @@ impl ImmediateFrame { /// Implements conversion functions to immediate types for atomics like `u8`, etc. macro_rules! impl_immediate_frame_le { ($t:ty) => { - impl From<$t> for ImmediateFrame<[u8; ::std::mem::size_of::<$t>()]> { + impl From<$t> for ImmediateFrame<[u8; (<$t>::BITS / 8) as usize]> { #[inline] fn from(value: $t) -> Self { ImmediateFrame::new(value.to_le_bytes()) @@ -79,6 +79,13 @@ macro_rules! impl_immediate_frame_le { impl_immediate_frame_le!(u8); impl_immediate_frame_le!(u16); impl_immediate_frame_le!(u32); +impl_immediate_frame_le!(u64); +impl_immediate_frame_le!(u128); +impl_immediate_frame_le!(i8); +impl_immediate_frame_le!(i16); +impl_immediate_frame_le!(i32); +impl_immediate_frame_le!(i64); +impl_immediate_frame_le!(i128); impl Buf for ImmediateFrame where From eb3221049b2a4fd988283a25244ef6d5a42fa266 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Mar 2023 11:59:03 +0100 Subject: [PATCH 328/735] muxink: Use `BITS` instead of `mem::size_of` for integer sizes --- muxink/src/framing/length_delimited.rs | 2 +- muxink/src/framing/little_endian.rs | 2 +- muxink/src/io.rs | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/muxink/src/framing/length_delimited.rs b/muxink/src/framing/length_delimited.rs index ac2d282fae..cdad8d8116 100644 --- a/muxink/src/framing/length_delimited.rs +++ b/muxink/src/framing/length_delimited.rs @@ -15,7 +15,7 @@ use super::{DecodeResult, FrameDecoder, FrameEncoder}; use crate::ImmediateFrame; /// Lenght of the prefix that describes the length of the following frame. -const LENGTH_MARKER_SIZE: usize = std::mem::size_of::(); +const LENGTH_MARKER_SIZE: usize = (::BITS / 8) as usize; /// Two-byte length delimited frame encoder and frame decoder. #[derive(Debug)] diff --git a/muxink/src/framing/little_endian.rs b/muxink/src/framing/little_endian.rs index 1719f94f10..37ed0d4756 100644 --- a/muxink/src/framing/little_endian.rs +++ b/muxink/src/framing/little_endian.rs @@ -22,7 +22,7 @@ macro_rules! int_codec { impl crate::framing::FrameEncoder<$ty> for LittleEndian<$ty> { // Encoding can never fail. type Error = Infallible; - type Output = crate::ImmediateFrame<[u8; ::std::mem::size_of::<$ty>()]>; + type Output = crate::ImmediateFrame<[u8; (<$ty>::BITS / 8) as usize]>; fn encode_frame(&mut self, value: $ty) -> Result { Ok(crate::ImmediateFrame::from(value)) diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 4117822c9f..2e961f639b 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -226,7 +226,7 @@ where #[cfg(test)] mod tests { - use std::{mem, pin::Pin}; + use std::pin::Pin; use bytes::Bytes; use futures::{ @@ -359,7 +359,7 @@ mod tests { MAX_READ_BUF_INCREMENT, MAX_READ_BUF_INCREMENT, MAX_READ_BUF_INCREMENT, - MAX_READ_BUF_INCREMENT - mem::size_of::() + MAX_READ_BUF_INCREMENT - (::BITS / 8) as usize ] ); } @@ -466,7 +466,7 @@ mod tests { let (_, received) = tokio::join!(send_fut, recv_fut); assert_eq!( - &received[FRAME.len() + mem::size_of::()..], + &received[FRAME.len() + (::BITS / 8) as usize..], 0u16.to_le_bytes() ); } From 22c0919d5865ff64fb4ec382a4d4ad83dbc53223 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Mar 2023 11:59:30 +0100 Subject: [PATCH 329/735] muxink: Fix clippy lints in tests --- muxink/src/framing/fixed_size.rs | 2 +- muxink/src/framing/little_endian.rs | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/muxink/src/framing/fixed_size.rs b/muxink/src/framing/fixed_size.rs index 05e358b3b9..8575ca921f 100644 --- a/muxink/src/framing/fixed_size.rs +++ b/muxink/src/framing/fixed_size.rs @@ -130,7 +130,7 @@ mod tests { fn encodes_simple_cases_correctly() { let seq = &[b"abc", b"def", b"ghi"]; - for &input in seq.into_iter() { + for &input in seq.iter() { let mut input = Bytes::from(input.to_vec()); let mut codec = FixedSize::new(3); diff --git a/muxink/src/framing/little_endian.rs b/muxink/src/framing/little_endian.rs index 37ed0d4756..e9547affc1 100644 --- a/muxink/src/framing/little_endian.rs +++ b/muxink/src/framing/little_endian.rs @@ -115,7 +115,7 @@ mod tests { let seq = [0x01020304u32, 0xAABBCCDD]; let outcomes: &[&[u8]] = &[b"\x04\x03\x02\x01", b"\xDD\xCC\xBB\xAA"]; - for (input, &expected) in seq.into_iter().zip(outcomes.into_iter()) { + for (input, &expected) in seq.into_iter().zip(outcomes.iter()) { let mut codec = LittleEndian::::default(); let mut outcome = codec.encode_frame(input).expect("encoding should not fail"); assert_eq!(outcome.remaining(), 4); From a8777d33d04c15b42fd63a88709d5f27d9622d6c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Mar 2023 12:09:44 +0100 Subject: [PATCH 330/735] muxink: Add type aliases for immediate frames --- muxink/src/lib.rs | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index e4984b4fbc..00b3a41c6b 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -66,8 +66,10 @@ impl ImmediateFrame { /// Implements conversion functions to immediate types for atomics like `u8`, etc. macro_rules! impl_immediate_frame_le { - ($t:ty) => { - impl From<$t> for ImmediateFrame<[u8; (<$t>::BITS / 8) as usize]> { + ($frame_type_name:ident, $t:ty) => { + pub type $frame_type_name = ImmediateFrame<[u8; (<$t>::BITS / 8) as usize]>; + + impl From<$t> for $frame_type_name { #[inline] fn from(value: $t) -> Self { ImmediateFrame::new(value.to_le_bytes()) @@ -76,16 +78,16 @@ macro_rules! impl_immediate_frame_le { }; } -impl_immediate_frame_le!(u8); -impl_immediate_frame_le!(u16); -impl_immediate_frame_le!(u32); -impl_immediate_frame_le!(u64); -impl_immediate_frame_le!(u128); -impl_immediate_frame_le!(i8); -impl_immediate_frame_le!(i16); -impl_immediate_frame_le!(i32); -impl_immediate_frame_le!(i64); -impl_immediate_frame_le!(i128); +impl_immediate_frame_le!(ImmediateFrameU8, u8); +impl_immediate_frame_le!(ImmediateFrameU16, u16); +impl_immediate_frame_le!(ImmediateFrameU32, u32); +impl_immediate_frame_le!(ImmediateFrameU64, u64); +impl_immediate_frame_le!(ImmediateFrameU128, u128); +impl_immediate_frame_le!(ImmediateFrameI8, i8); +impl_immediate_frame_le!(ImmediateFrameI16, i16); +impl_immediate_frame_le!(ImmediateFrameI32, i32); +impl_immediate_frame_le!(ImmediateFrameI64, i64); +impl_immediate_frame_le!(ImmediateFrameI128, i128); impl Buf for ImmediateFrame where From 7e49fd5e85a95cbc4dc3867be346966f41e5abd6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 9 Mar 2023 17:32:40 +0100 Subject: [PATCH 331/735] muxink: Remove little endian input encoder/decoder, replace with `LittleEndian` stream & sink decorator --- muxink/src/framing.rs | 1 - muxink/src/framing/little_endian.rs | 125 ---------------- muxink/src/lib.rs | 1 + muxink/src/little_endian.rs | 215 ++++++++++++++++++++++++++++ 4 files changed, 216 insertions(+), 126 deletions(-) delete mode 100644 muxink/src/framing/little_endian.rs create mode 100644 muxink/src/little_endian.rs diff --git a/muxink/src/framing.rs b/muxink/src/framing.rs index 2c7a5a1311..15a4dcdfe3 100644 --- a/muxink/src/framing.rs +++ b/muxink/src/framing.rs @@ -14,7 +14,6 @@ pub mod fixed_size; pub mod length_delimited; -pub mod little_endian; use std::fmt::Debug; diff --git a/muxink/src/framing/little_endian.rs b/muxink/src/framing/little_endian.rs deleted file mode 100644 index e9547affc1..0000000000 --- a/muxink/src/framing/little_endian.rs +++ /dev/null @@ -1,125 +0,0 @@ -/// Little-endian integer encoding. -use std::{convert::Infallible, marker::PhantomData}; - -use super::FrameDecoder; - -/// Fixed size framing for integers. -/// -/// Integers encoded through this codec come out as little endian fixed size bytes; encoding and -/// framing thus happens in a single step. Frame decoding merely splits off an appropriately sized -/// `Bytes` slice, but does not restore the integer from little endian encoding. -#[derive(Debug, Default)] -pub struct LittleEndian { - /// Phantom data pinning the accepted type. - /// - /// While an encoder would not need to restrict `T`, it still is limited to a single type for - /// type safety. - _phantom: PhantomData, -} - -macro_rules! int_codec { - ($ty:ty) => { - impl crate::framing::FrameEncoder<$ty> for LittleEndian<$ty> { - // Encoding can never fail. - type Error = Infallible; - type Output = crate::ImmediateFrame<[u8; (<$ty>::BITS / 8) as usize]>; - - fn encode_frame(&mut self, value: $ty) -> Result { - Ok(crate::ImmediateFrame::from(value)) - } - } - - impl FrameDecoder for LittleEndian<$ty> { - // Decoding cannot fail, as every bitstring of correct length is a valid integer. - type Error = Infallible; - - fn decode_frame( - &mut self, - buffer: &mut bytes::BytesMut, - ) -> super::DecodeResult { - // Number of bytes to represent the given type. - const LEN: usize = (<$ty>::BITS / 8) as usize; - - if buffer.len() < LEN { - super::DecodeResult::Remaining(LEN - buffer.len()) - } else { - let data = buffer.split_to(LEN); - super::DecodeResult::Item(data.freeze()) - } - } - } - }; -} - -// Implement for known integer types. -int_codec!(u16); -int_codec!(u32); -int_codec!(u64); -int_codec!(u128); -int_codec!(i16); -int_codec!(i32); -int_codec!(i64); -int_codec!(i128); - -#[cfg(test)] -mod tests { - use bytes::Buf; - use futures::io::Cursor; - - use crate::{framing::FrameEncoder, io::FrameReader, testing::collect_stream_results}; - - use super::LittleEndian; - - /// Decodes the input string, returning the decoded frames and the remainder. - fn run_decoding_stream(input: &[u8], chomp_size: usize) -> (Vec>, Vec) { - let stream = Cursor::new(input); - - let mut reader = FrameReader::new(LittleEndian::::default(), stream, chomp_size); - - let decoded: Vec<_> = collect_stream_results(&mut reader) - .into_iter() - .map(|bytes| bytes.into_iter().collect::>()) - .collect(); - - // Extract the remaining data. - let (_decoder, cursor, buffer) = reader.into_parts(); - let mut remaining = Vec::new(); - remaining.extend(buffer.into_iter()); - let cursor_pos = cursor.position() as usize; - remaining.extend(&cursor.into_inner()[cursor_pos..]); - - (decoded, remaining) - } - - #[test] - fn simple_stream_decoding_works() { - for chomp_size in 1..=1024 { - let input = b"\x01\x02\x03\x04\xAA\xBB\xCC\xDD"; - let (decoded, remainder) = run_decoding_stream(input, chomp_size); - assert_eq!(decoded, &[b"\x01\x02\x03\x04", b"\xAA\xBB\xCC\xDD"]); - assert!(remainder.is_empty()); - } - } - - #[test] - fn empty_stream_is_empty() { - let input = b""; - - let (decoded, remainder) = run_decoding_stream(input, 3); - assert!(decoded.is_empty()); - assert!(remainder.is_empty()); - } - - #[test] - fn encodes_simple_cases_correctly() { - let seq = [0x01020304u32, 0xAABBCCDD]; - let outcomes: &[&[u8]] = &[b"\x04\x03\x02\x01", b"\xDD\xCC\xBB\xAA"]; - - for (input, &expected) in seq.into_iter().zip(outcomes.iter()) { - let mut codec = LittleEndian::::default(); - let mut outcome = codec.encode_frame(input).expect("encoding should not fail"); - assert_eq!(outcome.remaining(), 4); - assert_eq!(&outcome.copy_to_bytes(4), expected); - } - } -} diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs index 00b3a41c6b..d41e6a332f 100644 --- a/muxink/src/lib.rs +++ b/muxink/src/lib.rs @@ -29,6 +29,7 @@ pub mod demux; pub mod fragmented; pub mod framing; pub mod io; +pub mod little_endian; pub mod mux; #[cfg(any(test, feature = "testing"))] pub mod testing; diff --git a/muxink/src/little_endian.rs b/muxink/src/little_endian.rs new file mode 100644 index 0000000000..fa8bae4c06 --- /dev/null +++ b/muxink/src/little_endian.rs @@ -0,0 +1,215 @@ +/// Little-endian integer encoding. +use std::{ + marker::PhantomData, + pin::Pin, + task::{Context, Poll}, +}; + +use bytes::Bytes; +use futures::{Sink, SinkExt, Stream, StreamExt}; +use thiserror::Error; + +/// Little endian integer encoder. +/// +/// Integers encoded or decoded through this sink/stream wrapper are encoded/decoded as little +/// endian integers (via `ImmediateFrame` when encoding) before being forwarded to the underlying +/// sink/stream. +/// +/// This data structure implements either `Stream` or `Sink`, depending on the wrapped `S`. +#[derive(Debug)] +pub struct LittleEndian { + inner: S, + /// Phantom data pinning the accepted type. + /// + /// While an encoder would not need to restrict `T`, it still is limited to a single type + /// type safety. + _type_pin: PhantomData, +} + +impl LittleEndian { + /// Creates a new little endian sink/stream. + pub fn new(inner: S) -> Self { + LittleEndian { + inner, + _type_pin: PhantomData, + } + } + + /// Returns the wrapped stream. + pub fn into_inner(self) -> S { + self.inner + } +} + +/// Decoding error for little endian decoding stream. +#[derive(Debug, Error)] +pub enum DecodeError +where + E: std::error::Error, +{ + /// The incoming `Bytes` object was of the wrong size. + #[error("Size mismatch, expected {expected} bytes, got {actual}")] + SizeMismatch { expected: usize, actual: usize }, + /// The wrapped stream returned an error. + #[error(transparent)] + Stream(#[from] E), +} + +macro_rules! int_codec { + ($ty:ty) => { + impl Sink<$ty> for LittleEndian<$ty, S> + where + S: Sink::BITS / 8) as usize]>> + Unpin, + { + type Error = + ::BITS / 8) as usize]>>>::Error; + + #[inline] + fn poll_ready( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.as_mut().inner.poll_ready_unpin(cx) + } + + #[inline] + fn start_send(mut self: Pin<&mut Self>, item: $ty) -> Result<(), Self::Error> { + let frame = crate::ImmediateFrame::<[u8; (<$ty>::BITS / 8) as usize]>::from(item); + self.as_mut().inner.start_send_unpin(frame) + } + + #[inline] + fn poll_flush( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.as_mut().inner.poll_flush_unpin(cx) + } + + #[inline] + fn poll_close( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + self.as_mut().inner.poll_close_unpin(cx) + } + } + + impl Stream for LittleEndian<$ty, S> + where + S: Stream> + Unpin, + E: std::error::Error, + { + type Item = Result<$ty, DecodeError>; + + fn poll_next( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + ) -> Poll> { + let raw_result = futures::ready!(self.as_mut().inner.poll_next_unpin(cx)); + + let raw_item = match raw_result { + None => return Poll::Ready(None), + Some(Err(e)) => return Poll::Ready(Some(Err(DecodeError::Stream(e)))), + Some(Ok(v)) => v, + }; + + let bytes_le: [u8; (<$ty>::BITS / 8) as usize] = match (&*raw_item).try_into() { + Ok(v) => v, + Err(_) => { + return Poll::Ready(Some(Err(DecodeError::SizeMismatch { + expected: (<$ty>::BITS / 8) as usize, + actual: raw_item.len(), + }))) + } + }; + Poll::Ready(Some(Ok(<$ty>::from_le_bytes(bytes_le)))) + } + + fn size_hint(&self) -> (usize, Option) { + self.inner.size_hint() + } + } + }; +} + +// Implement for known integer types. +int_codec!(u16); +int_codec!(u32); +int_codec!(u64); +int_codec!(u128); +int_codec!(i16); +int_codec!(i32); +int_codec!(i64); +int_codec!(i128); + +#[cfg(test)] +mod tests { + use futures::{io::Cursor, FutureExt, SinkExt}; + + use crate::{ + framing::fixed_size::FixedSize, + io::{FrameReader, FrameWriter}, + testing::collect_stream_results, + ImmediateFrameU32, + }; + + use super::LittleEndian; + + /// Decodes the input string, returning the decoded frames and the remainder. + fn run_decoding_stream(input: &[u8], chomp_size: usize) -> (Vec, Vec) { + let stream = Cursor::new(input); + + let mut reader = + LittleEndian::::new(FrameReader::new(FixedSize::new(4), stream, chomp_size)); + + let decoded: Vec = collect_stream_results(&mut reader); + + // Extract the remaining data. + let (_decoder, cursor, buffer) = reader.into_inner().into_parts(); + let mut remaining = Vec::new(); + remaining.extend(buffer.into_iter()); + let cursor_pos = cursor.position() as usize; + remaining.extend(&cursor.into_inner()[cursor_pos..]); + + (decoded, remaining) + } + + #[test] + fn simple_stream_decoding_works() { + for chomp_size in 1..=1024 { + let input = b"\x01\x02\x03\x04\xAA\xBB\xCC\xDD"; + let (decoded, remainder) = run_decoding_stream(input, chomp_size); + assert_eq!(decoded, &[0x04030201, 0xDDCCBBAA]); + assert!(remainder.is_empty()); + } + } + + #[test] + fn empty_stream_is_empty() { + let input = b""; + + let (decoded, remainder) = run_decoding_stream(input, 3); + assert!(decoded.is_empty()); + assert!(remainder.is_empty()); + } + + #[test] + fn encodes_simple_cases_correctly() { + let seq = [0x01020304u32, 0xAABBCCDD]; + let outcomes: &[&[u8]] = &[b"\x04\x03\x02\x01", b"\xDD\xCC\xBB\xAA"]; + + for (input, &expected) in seq.into_iter().zip(outcomes.iter()) { + let mut output: Vec = Vec::new(); + let mut writer = LittleEndian::::new( + FrameWriter::::new(FixedSize::new(4), &mut output), + ); + writer + .send(input) + .now_or_never() + .expect("send did not finish") + .expect("sending should not fail"); + assert_eq!(&output, expected); + } + } +} From e8e04c1ae960ce39637725f94be5c126b384570a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 11 Feb 2023 18:27:18 +0100 Subject: [PATCH 332/735] Add backpressure along with the required ACK sink on incoming connections --- node/src/components/network.rs | 35 ++++++++++++++++++++++++++-- node/src/components/network/error.rs | 13 ++++++++--- node/src/components/network/tasks.rs | 28 +++++++++++++++++----- 3 files changed, 65 insertions(+), 11 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index c51a1c6de5..d74cd28bb3 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -61,11 +61,14 @@ use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use itertools::Itertools; use muxink::{ + backpressured::BackpressuredStream, demux::{Demultiplexer, DemultiplexerHandle}, fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, - framing::length_delimited::LengthDelimited, + framing::{fixed_size::FixedSize, length_delimited::LengthDelimited}, io::{FrameReader, FrameWriter}, + little_endian::LittleEndian, mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerError, MultiplexerHandle}, + ImmediateFrameU64, }; use prometheus::Registry; @@ -76,6 +79,7 @@ use rand::{ use strum::EnumCount; use tokio::{ io::ReadHalf, + io::WriteHalf, net::TcpStream, sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, task::JoinHandle, @@ -159,6 +163,10 @@ const PING_TIMEOUT: Duration = Duration::from_secs(6); /// How many pings to send before giving up and dropping the connection. const PING_RETRIES: u16 = 5; +/// How many items to buffer before backpressuring. +// TODO: This should probably be configurable on a per-channel basis. +const BACKPRESSURE_WINDOW_SIZE: u64 = 20; + #[derive(Clone, DataSize, Debug)] pub(crate) struct OutgoingHandle { #[data_size(skip)] // Unfortunately, there is no way to inspect an `UnboundedSender`. @@ -614,6 +622,14 @@ where let (read_half, write_half) = tokio::io::split(transport); + // Setup a multiplexed delivery for ACKs (we use the send direction of the incoming + // connection for sending ACKs only). + let write_compat: Compat>> = + tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); + + let ack_writer: AckWriter = FrameWriter::new(FixedSize::new(8), write_compat); + let ack_carrier = Multiplexer::new(ack_writer); + // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the // tokio built-in version instead). The compat layer fixes that. let read_compat: Compat>> = @@ -630,6 +646,7 @@ where tasks::multi_channel_message_receiver( self.context.clone(), carrier, + ack_carrier, self.incoming_limiter .create_handle(peer_id, peer_consensus_public_key), self.shutdown_fuse.inner().clone(), @@ -1367,7 +1384,21 @@ type IncomingFrameReader = FrameReader; /// An instance of a channel on an incoming carrier. -type IncomingChannel = Defragmentizer>; +type IncomingChannel = BackpressuredStream< + Defragmentizer>, + OutgoingAckChannel, + Bytes, +>; + +/// Writer for ACKs, sent back over the incoming connection. +type AckWriter = + FrameWriter, FixedSize, Compat>>; + +/// Multiplexer sending ACKs for various channels over an `AckWriter`. +type OutgoingAckCarrier = Multiplexer; + +/// Outgoing ACK stream. +type OutgoingAckChannel = LittleEndian>; /// Setups bincode encoding used on the networking transport. fn bincode_config() -> impl Options { diff --git a/node/src/components/network/error.rs b/node/src/components/network/error.rs index 8852fe0b63..f384ae75a8 100644 --- a/node/src/components/network/error.rs +++ b/node/src/components/network/error.rs @@ -3,7 +3,10 @@ use std::{io, net::SocketAddr}; use casper_hashing::Digest; use casper_types::{crypto, ProtocolVersion}; use datasize::DataSize; -use muxink::{demux::DemultiplexerError, fragmented::DefragmentizerError}; +use muxink::{ + backpressured::BackpressuredStreamError, demux::DemultiplexerError, + fragmented::DefragmentizerError, mux::MultiplexerError, +}; use openssl::{error::ErrorStack, ssl}; use serde::Serialize; use thiserror::Error; @@ -220,9 +223,13 @@ pub enum MessageReaderError { #[allow(dead_code)] // TODO: Re-add if necessary, if backpressure requires this still. UnexpectedSemaphoreClose, /// The message receival stack returned an error. - // These errors can get fairly and complicated and are boxed here for that reason. #[error("message receive error")] - ReceiveError(DefragmentizerError>), + ReceiveError( + BackpressuredStreamError< + DefragmentizerError>, + MultiplexerError, + >, + ), /// Error deserializing message. #[error("message deserialization error")] DeserializationError(bincode::Error), diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 71353024ec..34f3ad7d5f 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -18,8 +18,10 @@ use futures::{ }; use muxink::{ + backpressured::BackpressuredStream, demux::Demultiplexer, fragmented::{Defragmentizer, Fragmentizer}, + little_endian::LittleEndian, }; use openssl::{ pkey::{PKey, Private}, @@ -46,7 +48,8 @@ use super::{ limiter::LimiterHandle, message::NodeKeyPair, Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingCarrier, IncomingChannel, - Message, Metrics, OutgoingCarrier, OutgoingCarrierError, OutgoingChannel, Payload, Transport, + Message, Metrics, OutgoingAckCarrier, OutgoingAckChannel, OutgoingCarrier, + OutgoingCarrierError, OutgoingChannel, Payload, Transport, BACKPRESSURE_WINDOW_SIZE, MESSAGE_FRAGMENT_SIZE, }; @@ -518,6 +521,7 @@ pub(super) async fn server( pub(super) async fn multi_channel_message_receiver( context: Arc>, carrier: Arc>, + ack_carrier: OutgoingAckCarrier, limiter: LimiterHandle, shutdown: ObservableFuse, peer_id: NodeId, @@ -537,10 +541,19 @@ where let demuxer = Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), channel as u8) .expect("mutex poisoned"); - let incoming: IncomingChannel = Defragmentizer::new( - context.chain_info.maximum_net_message_size as usize, - demuxer, + + let ack_sink: OutgoingAckChannel = + LittleEndian::new(ack_carrier.create_channel_handle(channel as u8)); + + let incoming: IncomingChannel = BackpressuredStream::new( + Defragmentizer::new( + context.chain_info.maximum_net_message_size as usize, + demuxer, + ), + ack_sink, + BACKPRESSURE_WINDOW_SIZE, ); + select.push(incoming.map(move |frame| (channel, frame))); } @@ -551,7 +564,7 @@ where pin_mut!(next_item); pin_mut!(wait_for_close_incoming); - let (channel, frame) = match future::select(next_item, wait_for_close_incoming) + let (channel, (frame, ticket)) = match future::select(next_item, wait_for_close_incoming) .await .peel() { @@ -572,9 +585,12 @@ where let msg: Message

= deserialize_network_message(&frame) .map_err(MessageReaderError::DeserializationError)?; + trace!(%msg, %channel, "message received"); - // TODO: Re-add support for demands when backpressure is added. + // TODO: Re-add support for demands when backpressure is added. Right now, the ticket is + // simply dropped, causing an `ACK` to be sent. + drop(ticket); // The limiter stops _all_ channels, as they share a resource pool anyway. limiter From 7f9aff7afa8ca7e755fdbef091f5ec0161abc097 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 14 Mar 2023 13:59:57 +0100 Subject: [PATCH 333/735] Setup a receiver channel for `ACK`s --- node/src/components/network.rs | 38 +++++++++++++++++++++++++--------- 1 file changed, 28 insertions(+), 10 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index d74cd28bb3..64d1627c1f 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -149,6 +149,9 @@ const OUTGOING_MANAGER_SWEEP_INTERVAL: Duration = Duration::from_secs(1); /// The size of a single message fragment sent over the wire. const MESSAGE_FRAGMENT_SIZE: usize = 4096; +/// How many bytes of ACKs to read in one go. +const ACK_BUFFER_SIZE: usize = 1024; + /// How often to send a ping down a healthy connection. const PING_INTERVAL: Duration = Duration::from_secs(30); @@ -627,7 +630,7 @@ where let write_compat: Compat>> = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); - let ack_writer: AckWriter = FrameWriter::new(FixedSize::new(8), write_compat); + let ack_writer: AckFrameWriter = FrameWriter::new(FixedSize::new(8), write_compat); let ack_carrier = Multiplexer::new(ack_writer); // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the @@ -826,10 +829,19 @@ where // `rust-openssl` does not support the futures 0.3 `AsyncWrite` trait (it uses the // tokio built-in version instead). The compat layer fixes that. - let compat_transport = - tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(transport); + + let (read_half, write_half) = tokio::io::split(transport); + + let read_compat = tokio_util::compat::TokioAsyncReadCompatExt::compat(read_half); + + let ack_reader: AckFrameReader = + FrameReader::new(FixedSize::new(8), read_compat, ACK_BUFFER_SIZE); + let ack_carrier = Demultiplexer::new(ack_reader); + + let write_compat = + tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); let carrier: OutgoingCarrier = - Multiplexer::new(FrameWriter::new(LengthDelimited, compat_transport)); + Multiplexer::new(FrameWriter::new(LengthDelimited, write_compat)); effects.extend( tasks::encoded_message_sender( @@ -1365,8 +1377,11 @@ fn unbounded_channels() -> ([UnboundedSender; N], [Unbound type Transport = SslStream; /// The writer for outgoing length-prefixed frames. -type OutgoingFrameWriter = - FrameWriter, LengthDelimited, Compat>; +type OutgoingFrameWriter = FrameWriter< + ChannelPrefixedFrame, + LengthDelimited, + Compat>, +>; /// The multiplexer to send fragments over an underlying frame writer. type OutgoingCarrier = Multiplexer; @@ -1390,15 +1405,18 @@ type IncomingChannel = BackpressuredStream< Bytes, >; -/// Writer for ACKs, sent back over the incoming connection. -type AckWriter = +/// Frame writer for ACKs, sent back over the incoming connection. +type AckFrameWriter = FrameWriter, FixedSize, Compat>>; +/// Frame reader for ACKs, received through an outgoing connection. +type AckFrameReader = FrameReader>>; + /// Multiplexer sending ACKs for various channels over an `AckWriter`. -type OutgoingAckCarrier = Multiplexer; +type OutgoingAckCarrier = Multiplexer; /// Outgoing ACK stream. -type OutgoingAckChannel = LittleEndian>; +type OutgoingAckChannel = LittleEndian>; /// Setups bincode encoding used on the networking transport. fn bincode_config() -> impl Options { From 8fe4ddfd08b194fe8da2ab79dcdc5ff94fdfd4cc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 14 Mar 2023 14:46:16 +0100 Subject: [PATCH 334/735] Integrate ACK streams into receiving, completing backpressure loop --- node/src/components/network.rs | 31 +++++++++++++++++------- node/src/components/network/tasks.rs | 36 ++++++++++++++++++++-------- 2 files changed, 48 insertions(+), 19 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 64d1627c1f..76fd977644 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -48,6 +48,7 @@ use std::{ convert::TryInto, fmt::{self, Debug, Display, Formatter}, fs::OpenOptions, + io, marker::PhantomData, net::{SocketAddr, TcpListener}, sync::{Arc, Mutex}, @@ -61,12 +62,12 @@ use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use itertools::Itertools; use muxink::{ - backpressured::BackpressuredStream, - demux::{Demultiplexer, DemultiplexerHandle}, + backpressured::{BackpressuredSink, BackpressuredSinkError, BackpressuredStream}, + demux::{Demultiplexer, DemultiplexerError, DemultiplexerHandle}, fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, framing::{fixed_size::FixedSize, length_delimited::LengthDelimited}, io::{FrameReader, FrameWriter}, - little_endian::LittleEndian, + little_endian::{DecodeError, LittleEndian}, mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerError, MultiplexerHandle}, ImmediateFrameU64, }; @@ -836,7 +837,7 @@ where let ack_reader: AckFrameReader = FrameReader::new(FixedSize::new(8), read_compat, ACK_BUFFER_SIZE); - let ack_carrier = Demultiplexer::new(ack_reader); + let ack_carrier = Arc::new(Mutex::new(Demultiplexer::new(ack_reader))); let write_compat = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); @@ -847,6 +848,7 @@ where tasks::encoded_message_sender( receivers, carrier, + ack_carrier, self.outgoing_limiter .create_handle(peer_id, peer_consensus_public_key), ) @@ -1386,11 +1388,16 @@ type OutgoingFrameWriter = FrameWriter< /// The multiplexer to send fragments over an underlying frame writer. type OutgoingCarrier = Multiplexer; -/// The error type associated with the primary sink implementation of `OutgoingCarrier`. -type OutgoingCarrierError = MultiplexerError; +/// The error type associated with the primary sink implementation. +type OutgoingChannelError = + BackpressuredSinkError, DecodeError>>; /// An instance of a channel on an outgoing carrier. -type OutgoingChannel = Fragmentizer, Bytes>; +type OutgoingChannel = BackpressuredSink< + Fragmentizer, Bytes>, + IncomingAckChannel, + Bytes, +>; /// The reader for incoming length-prefixed frames. type IncomingFrameReader = FrameReader>>; @@ -1412,12 +1419,18 @@ type AckFrameWriter = /// Frame reader for ACKs, received through an outgoing connection. type AckFrameReader = FrameReader>>; -/// Multiplexer sending ACKs for various channels over an `AckWriter`. +/// Multiplexer sending ACKs for various channels over an `AckFrameWriter`. type OutgoingAckCarrier = Multiplexer; -/// Outgoing ACK stream. +/// Outgoing ACK sink. type OutgoingAckChannel = LittleEndian>; +/// Demultiplexer receiving ACKs for various channels over an `AckFrameReader`. +type IncomingAckCarrier = Demultiplexer; + +/// Incoming ACK stream. +type IncomingAckChannel = LittleEndian>; + /// Setups bincode encoding used on the networking transport. fn bincode_config() -> impl Options { bincode::options() diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 34f3ad7d5f..b2bbb310ad 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -1,6 +1,7 @@ //! Tasks run by the component. use std::{ + convert::Infallible, fmt::Display, net::SocketAddr, num::NonZeroUsize, @@ -18,7 +19,7 @@ use futures::{ }; use muxink::{ - backpressured::BackpressuredStream, + backpressured::{BackpressuredSink, BackpressuredStream}, demux::Demultiplexer, fragmented::{Defragmentizer, Fragmentizer}, little_endian::LittleEndian, @@ -47,9 +48,9 @@ use super::{ event::{IncomingConnection, OutgoingConnection}, limiter::LimiterHandle, message::NodeKeyPair, - Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingCarrier, IncomingChannel, - Message, Metrics, OutgoingAckCarrier, OutgoingAckChannel, OutgoingCarrier, - OutgoingCarrierError, OutgoingChannel, Payload, Transport, BACKPRESSURE_WINDOW_SIZE, + Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingAckCarrier, IncomingCarrier, + IncomingChannel, Message, Metrics, OutgoingAckCarrier, OutgoingAckChannel, OutgoingCarrier, + OutgoingChannel, OutgoingChannelError, Payload, Transport, BACKPRESSURE_WINDOW_SIZE, MESSAGE_FRAGMENT_SIZE, }; @@ -57,7 +58,7 @@ use crate::{ components::network::{ deserialize_network_message, handshake::{negotiate_handshake, HandshakeOutcome}, - Config, + Config, IncomingAckChannel, }, effect::{ announcements::PeerBehaviorAnnouncement, requests::NetworkRequest, AutoClosingResponder, @@ -538,7 +539,7 @@ where // We create a single select that returns items from all the streams. let mut select = SelectAll::new(); for channel in Channel::iter() { - let demuxer = + let demux_handle = Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), channel as u8) .expect("mutex poisoned"); @@ -548,7 +549,7 @@ where let incoming: IncomingChannel = BackpressuredStream::new( Defragmentizer::new( context.chain_info.maximum_net_message_size as usize, - demuxer, + demux_handle, ), ack_sink, BACKPRESSURE_WINDOW_SIZE, @@ -640,8 +641,9 @@ where pub(super) async fn encoded_message_sender( queues: [UnboundedReceiver; Channel::COUNT], carrier: OutgoingCarrier, + ack_carrier: Arc>, limiter: LimiterHandle, -) -> Result<(), OutgoingCarrierError> { +) -> Result<(), OutgoingChannelError> { // TODO: Once the necessary methods are stabilized, setup const fns to initialize // `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); @@ -651,10 +653,24 @@ pub(super) async fn encoded_message_sender( for (channel, queue) in Channel::iter().zip(IntoIterator::into_iter(queues)) { let mux_handle = carrier.create_channel_handle(channel as u8); - let channel: OutgoingChannel = Fragmentizer::new(fragment_size, mux_handle); + + // Note: We use `Infallibe` here, since we do not care about the actual API. + // TODO: The `muxink` API could probably be improved here to not require an `E` parameter. + let ack_demux_handle = + Demultiplexer::create_handle::(ack_carrier.clone(), channel as u8) + .expect("handle creation should not fail"); + + let ack_stream: IncomingAckChannel = LittleEndian::new(ack_demux_handle); + + let outgoing: OutgoingChannel = BackpressuredSink::new( + Fragmentizer::new(fragment_size, mux_handle), + ack_stream, + BACKPRESSURE_WINDOW_SIZE, + ); + boiler_room.push(shovel_data( queue, - channel, + outgoing, local_stop.clone(), limiter.clone(), )); From 4bf996dba396973ab92fe2121ec19cec5a528d27 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 13:18:45 +0100 Subject: [PATCH 335/735] Better tracing of single network messages being sent --- node/src/components/network.rs | 2 +- node/src/components/network/tasks.rs | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 76fd977644..2514c0f3cc 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -505,7 +505,7 @@ where // The `AutoClosingResponder` will respond by itself. return; }; - trace!(%msg, encoded_size=payload.len(), %channel, "enqueued message for sending"); + trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); let send_token = TokenizedCount::new(self.net_metrics.queued_messages.clone()); diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index b2bbb310ad..dd953399d1 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -669,6 +669,7 @@ pub(super) async fn encoded_message_sender( ); boiler_room.push(shovel_data( + channel, queue, outgoing, local_stop.clone(), @@ -700,6 +701,7 @@ pub(super) async fn encoded_message_sender( /// /// Will loop forever, until either told to stop through the `stop` flag, or a send error occurs. async fn shovel_data( + channel: Channel, mut source: UnboundedReceiver, mut dest: S, stop: ObservableFuse, @@ -708,6 +710,7 @@ async fn shovel_data( where S: Sink + Unpin, { + trace!(%channel, "starting data shoveller for channel"); loop { let recv = source.recv(); pin_mut!(recv); @@ -720,6 +723,9 @@ where send_finished, send_token, })) => { + let encoded_size = data.len(); + let has_responder = send_finished.is_some(); + trace!(%channel, encoded_size, has_responder, "attempting to send payload"); limiter.request_allowance(data.len() as u32).await; // Note: It may be tempting to use `feed()` instead of `send()` when no responder // is present, since after all the sender is only guaranteed an eventual @@ -732,6 +738,7 @@ where responder.respond(()).await; } + trace!(%channel, encoded_size, has_responder, "finished sending payload"); // We only drop the token once the message is sent or at least buffered. drop(send_token); } From 085f25ed085db390c15aaf1165b4ee79f00b9849 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 13:43:42 +0100 Subject: [PATCH 336/735] Fixed frame size misconfiguration causing disconnects on every network connection --- node/src/components/network.rs | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 2514c0f3cc..a66ac1f3bd 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -631,7 +631,8 @@ where let write_compat: Compat>> = tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); - let ack_writer: AckFrameWriter = FrameWriter::new(FixedSize::new(8), write_compat); + let ack_writer: AckFrameWriter = + FrameWriter::new(FixedSize::new(ACK_FRAME_SIZE), write_compat); let ack_carrier = Multiplexer::new(ack_writer); // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the @@ -836,7 +837,7 @@ where let read_compat = tokio_util::compat::TokioAsyncReadCompatExt::compat(read_half); let ack_reader: AckFrameReader = - FrameReader::new(FixedSize::new(8), read_compat, ACK_BUFFER_SIZE); + FrameReader::new(FixedSize::new(ACK_FRAME_SIZE), read_compat, ACK_BUFFER_SIZE); let ack_carrier = Arc::new(Mutex::new(Demultiplexer::new(ack_reader))); let write_compat = @@ -1416,6 +1417,9 @@ type IncomingChannel = BackpressuredStream< type AckFrameWriter = FrameWriter, FixedSize, Compat>>; +/// ACK frames are 9 bytes (channel prefix + `u64`). +const ACK_FRAME_SIZE: usize = 9; + /// Frame reader for ACKs, received through an outgoing connection. type AckFrameReader = FrameReader>>; From 88be8a111bdaa9ca1ea5f57a72c10ba0a9e8e6c8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 14:15:00 +0100 Subject: [PATCH 337/735] Propagate backpressure ticket all the way to announcement --- node/src/components/network.rs | 19 ++++++++++++------- node/src/components/network/event.rs | 5 +++++ node/src/components/network/tasks.rs | 6 ++---- node/src/effect.rs | 6 +++++- 4 files changed, 24 insertions(+), 12 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index a66ac1f3bd..a48be57a29 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -62,7 +62,7 @@ use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use itertools::Itertools; use muxink::{ - backpressured::{BackpressuredSink, BackpressuredSinkError, BackpressuredStream}, + backpressured::{BackpressuredSink, BackpressuredSinkError, BackpressuredStream, Ticket}, demux::{Demultiplexer, DemultiplexerError, DemultiplexerHandle}, fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, framing::{fixed_size::FixedSize, length_delimited::LengthDelimited}, @@ -985,11 +985,13 @@ where effect_builder: EffectBuilder, peer_id: NodeId, msg: Message

, + ticket: Ticket, span: Span, ) -> Effects> where REv: FromIncoming

+ From, { + // Note: For non-payload channels, we drop the `Ticket` implicitly at end of scope. span.in_scope(|| match msg { Message::Handshake { .. } => { // We should never receive a handshake message on an established connection. Simply @@ -1018,9 +1020,9 @@ where Effects::new() } } - Message::Payload(payload) => { - effect_builder.announce_incoming(peer_id, payload).ignore() - } + Message::Payload(payload) => effect_builder + .announce_incoming(peer_id, payload, ticket) + .ignore(), }) } @@ -1229,9 +1231,12 @@ where Event::IncomingConnection { incoming, span } => { self.handle_incoming_connection(incoming, span) } - Event::IncomingMessage { peer_id, msg, span } => { - self.handle_incoming_message(effect_builder, *peer_id, *msg, span) - } + Event::IncomingMessage { + peer_id, + msg, + span, + ticket, + } => self.handle_incoming_message(effect_builder, *peer_id, *msg, ticket, span), Event::IncomingClosed { result, peer_id, diff --git a/node/src/components/network/event.rs b/node/src/components/network/event.rs index 8a0ab6bc9f..1111aa4063 100644 --- a/node/src/components/network/event.rs +++ b/node/src/components/network/event.rs @@ -5,6 +5,7 @@ use std::{ }; use derive_more::From; +use muxink::backpressured::Ticket; use serde::Serialize; use static_assertions::const_assert; use tracing::Span; @@ -48,6 +49,9 @@ where msg: Box>, #[serde(skip)] span: Span, + /// The backpressure-related ticket for the message. + #[serde(skip)] + ticket: Ticket, }, /// Incoming connection closed. @@ -127,6 +131,7 @@ where peer_id: node_id, msg, span: _, + ticket: _, } => write!(f, "msg from {}: {}", node_id, msg), Event::IncomingClosed { peer_addr, .. } => { write!(f, "closed connection from {}", peer_addr) diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index dd953399d1..89d214ee2d 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -589,16 +589,13 @@ where trace!(%msg, %channel, "message received"); - // TODO: Re-add support for demands when backpressure is added. Right now, the ticket is - // simply dropped, causing an `ACK` to be sent. - drop(ticket); - // The limiter stops _all_ channels, as they share a resource pool anyway. limiter .request_allowance(msg.payload_incoming_resource_estimate(&context.payload_weights)) .await; // Ensure the peer did not try to sneak in a message on a different channel. + // TODO: Verify we still need this. let msg_channel = msg.get_channel(); if msg_channel != channel { return Err(MessageReaderError::WrongChannel { @@ -621,6 +618,7 @@ where peer_id: Box::new(peer_id), msg: Box::new(msg), span: span.clone(), + ticket, }, queue_kind, ) diff --git a/node/src/effect.rs b/node/src/effect.rs index d3be12f974..f545f07af8 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -108,6 +108,7 @@ use std::{ use datasize::DataSize; use futures::{channel::oneshot, future::BoxFuture, FutureExt}; +use muxink::backpressured::Ticket; use once_cell::sync::Lazy; use serde::{Serialize, Serializer}; use smallvec::{smallvec, SmallVec}; @@ -816,10 +817,13 @@ impl EffectBuilder { } /// Announces an incoming network message. - pub(crate) async fn announce_incoming

(self, sender: NodeId, payload: P) + pub(crate) async fn announce_incoming

(self, sender: NodeId, payload: P, ticket: Ticket) where REv: FromIncoming

, { + // TODO: Propagate ticket where needed. + drop(ticket); + self.event_queue .schedule( >::from_incoming(sender, payload), From 0cbf01b6d3dce60dcc4418fb0c1821849c2e5843 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 15:42:10 +0100 Subject: [PATCH 338/735] Re-add demands to the system --- node/src/effect.rs | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/node/src/effect.rs b/node/src/effect.rs index f545f07af8..2889ed31eb 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -819,16 +819,24 @@ impl EffectBuilder { /// Announces an incoming network message. pub(crate) async fn announce_incoming

(self, sender: NodeId, payload: P, ticket: Ticket) where - REv: FromIncoming

, - { - // TODO: Propagate ticket where needed. - drop(ticket); + REv: FromIncoming

+ Send, + P: 'static, + { + let reactor_event = + match >::try_demand_from_incoming(self, sender, payload) { + Ok((rev, demand_has_been_satisfied)) => { + tokio::spawn(async move { + // TODO: Consider removing demands as a whole and using tickets solely. + demand_has_been_satisfied.await; + drop(ticket); + }); + rev + } + Err(payload) => >::from_incoming(sender, payload), + }; self.event_queue - .schedule( - >::from_incoming(sender, payload), - QueueKind::NetworkIncoming, - ) + .schedule(reactor_event, QueueKind::NetworkIncoming) .await } From 73c83dc98dff4cc98c896232a9e68d886431cc9d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 16:34:29 +0100 Subject: [PATCH 339/735] muxink: Add capability to create dummy `Ticket`s --- muxink/src/backpressured.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs index c460bb6ec6..5aa0a55526 100644 --- a/muxink/src/backpressured.rs +++ b/muxink/src/backpressured.rs @@ -242,6 +242,12 @@ impl Ticket { pub fn new(sender: Sender<()>) -> Self { Self { sender } } + + /// Creates a dummy ticket that will have no effect when dropped. + pub fn create_dummy() -> Self { + let (sender, _receiver) = futures::channel::mpsc::channel(1); + Self { sender } + } } impl Drop for Ticket { From 7bd32658992e370bbba0b0f06a6bdd819293e768 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 16:35:08 +0100 Subject: [PATCH 340/735] Thread `Ticket` passing into `FromIncoming` --- node/src/components/in_memory_network.rs | 4 +++- node/src/components/network/message.rs | 3 ++- node/src/components/network/tests.rs | 4 +++- node/src/effect.rs | 4 ++-- node/src/protocol.rs | 4 +++- 5 files changed, 13 insertions(+), 6 deletions(-) diff --git a/node/src/components/in_memory_network.rs b/node/src/components/in_memory_network.rs index d3402d218a..d6cbbbe749 100644 --- a/node/src/components/in_memory_network.rs +++ b/node/src/components/in_memory_network.rs @@ -285,6 +285,7 @@ use std::{ }; use casper_types::testing::TestRng; +use muxink::backpressured::Ticket; use rand::seq::IteratorRandom; use serde::Serialize; use tokio::sync::mpsc::{self, error::SendError}; @@ -608,7 +609,8 @@ async fn receiver_task( P: 'static + Send, { while let Some((sender, payload)) = receiver.recv().await { - let announce: REv = REv::from_incoming(sender, payload); + // We do not use backpressure in the in-memory network, so provide a dummy ticket. + let announce: REv = REv::from_incoming(sender, payload, Ticket::create_dummy()); event_queue .schedule(announce, QueueKind::NetworkIncoming) diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 5d2ad7f5f3..52ea542fc3 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -10,6 +10,7 @@ use casper_types::testing::TestRng; use casper_types::{crypto, AsymmetricType, ProtocolVersion, PublicKey, SecretKey, Signature}; use datasize::DataSize; use futures::future::BoxFuture; +use muxink::backpressured::Ticket; use serde::{ de::{DeserializeOwned, Error as SerdeError}, Deserialize, Deserializer, Serialize, Serializer, @@ -410,7 +411,7 @@ pub(crate) trait Payload: /// Network message conversion support. pub(crate) trait FromIncoming

{ /// Creates a new value from a received payload. - fn from_incoming(sender: NodeId, payload: P) -> Self; + fn from_incoming(sender: NodeId, payload: P, ticket: Ticket) -> Self; /// Tries to convert a payload into a demand. /// diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index 95c5bbc274..ad413c10a1 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -12,6 +12,7 @@ use std::{ use derive_more::From; use futures::FutureExt; +use muxink::backpressured::Ticket; use prometheus::Registry; use reactor::ReactorEvent; use serde::{Deserialize, Serialize}; @@ -123,7 +124,8 @@ impl From for Event { } impl FromIncoming for Event { - fn from_incoming(sender: NodeId, payload: Message) -> Self { + fn from_incoming(sender: NodeId, payload: Message, _ticket: Ticket) -> Self { + // Note: `ticket` is dropped directly, no backpressure is used in the test reactor. match payload { Message::AddressGossiper(message) => { Event::AddressGossiperIncoming(GossiperIncoming { sender, message }) diff --git a/node/src/effect.rs b/node/src/effect.rs index 2889ed31eb..696f4501fa 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -822,17 +822,17 @@ impl EffectBuilder { REv: FromIncoming

+ Send, P: 'static, { + // TODO: Remove demands entirely as they are no longer needed with tickets. let reactor_event = match >::try_demand_from_incoming(self, sender, payload) { Ok((rev, demand_has_been_satisfied)) => { tokio::spawn(async move { - // TODO: Consider removing demands as a whole and using tickets solely. demand_has_been_satisfied.await; drop(ticket); }); rev } - Err(payload) => >::from_incoming(sender, payload), + Err(payload) => >::from_incoming(sender, payload, ticket), }; self.event_queue diff --git a/node/src/protocol.rs b/node/src/protocol.rs index ef8420e1c8..f5225521e0 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -9,6 +9,7 @@ use derive_more::From; use fmt::Debug; use futures::{future::BoxFuture, FutureExt}; use hex_fmt::HexFmt; +use muxink::backpressured::Ticket; use serde::{Deserialize, Serialize}; use crate::{ @@ -285,7 +286,8 @@ where + From + From, { - fn from_incoming(sender: NodeId, payload: Message) -> Self { + fn from_incoming(sender: NodeId, payload: Message, ticket: Ticket) -> Self { + drop(ticket); // TODO match payload { Message::Consensus(message) => ConsensusMessageIncoming { sender, message }.into(), Message::ConsensusRequest(_message) => { From dcc1f45b6a099e8ce65340b1218ce8e88d05a4f0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 15 Mar 2023 16:49:33 +0100 Subject: [PATCH 341/735] Thread `Ticket` through the entire system, albeit with a few stand-ins for proper handling of such --- node/src/components/consensus.rs | 16 +++++-- node/src/components/contract_runtime.rs | 2 + node/src/components/gossiper.rs | 12 ++++- node/src/components/gossiper/tests.rs | 3 ++ node/src/components/network/tests.rs | 11 +++-- node/src/effect/incoming.rs | 5 +- node/src/protocol.rs | 62 +++++++++++++++++++++---- node/src/reactor/main_reactor.rs | 28 ++++++----- 8 files changed, 107 insertions(+), 32 deletions(-) diff --git a/node/src/components/consensus.rs b/node/src/components/consensus.rs index 3492fe633d..b8998bf7b6 100644 --- a/node/src/components/consensus.rs +++ b/node/src/components/consensus.rs @@ -259,7 +259,11 @@ impl Display for ConsensusRequestMessage { impl Display for Event { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { - Event::Incoming(ConsensusMessageIncoming { sender, message }) => { + Event::Incoming(ConsensusMessageIncoming { + sender, + message, + ticket: _, + }) => { write!(f, "message from {:?}: {}", sender, message) } Event::DemandIncoming(demand) => { @@ -386,8 +390,14 @@ where Event::Action { era_id, action_id } => { self.handle_action(effect_builder, rng, era_id, action_id) } - Event::Incoming(ConsensusMessageIncoming { sender, message }) => { - self.handle_message(effect_builder, rng, sender, message) + Event::Incoming(ConsensusMessageIncoming { + sender, + message, + ticket, + }) => { + let rv = self.handle_message(effect_builder, rng, sender, message); + drop(ticket); + rv } Event::DemandIncoming(ConsensusDemand { sender, diff --git a/node/src/components/contract_runtime.rs b/node/src/components/contract_runtime.rs index 9107b5855f..438dc8d01c 100644 --- a/node/src/components/contract_runtime.rs +++ b/node/src/components/contract_runtime.rs @@ -266,11 +266,13 @@ impl ContractRuntime { TrieRequestIncoming { sender, message: TrieRequest(ref serialized_id), + ticket, }: TrieRequestIncoming, ) -> Effects where REv: From> + Send, { + drop(ticket); // TODO: Properly handle ticket. let fetch_response = match self.get_trie(serialized_id) { Ok(fetch_response) => fetch_response, Err(error) => { diff --git a/node/src/components/gossiper.rs b/node/src/components/gossiper.rs index b60955b903..f885f3c258 100644 --- a/node/src/components/gossiper.rs +++ b/node/src/components/gossiper.rs @@ -597,7 +597,11 @@ where Event::CheckGetFromPeerTimeout { item_id, peer } => { self.check_get_from_peer_timeout(effect_builder, item_id, peer) } - Event::Incoming(GossiperIncoming:: { sender, message }) => match message { + Event::Incoming(GossiperIncoming:: { + sender, + message, + ticket: _, // TODO: Sensibly process ticket. + }) => match message { Message::Gossip(item_id) => { Self::is_stored(effect_builder, item_id.clone()).event(move |result| { Event::IsStoredResult { @@ -700,7 +704,11 @@ where error!(%item_id, %peer, "should not timeout getting small item from peer"); Effects::new() } - Event::Incoming(GossiperIncoming:: { sender, message }) => match message { + Event::Incoming(GossiperIncoming:: { + sender, + message, + ticket: _, // TODO: Properly handle `ticket`. + }) => match message { Message::Gossip(item_id) => { let target = ::id_as_item(&item_id).gossip_target(); let action = self.table.new_complete_data(&item_id, Some(sender), target); diff --git a/node/src/components/gossiper/tests.rs b/node/src/components/gossiper/tests.rs index 5479064595..a700c35f1f 100644 --- a/node/src/components/gossiper/tests.rs +++ b/node/src/components/gossiper/tests.rs @@ -8,6 +8,7 @@ use std::{ }; use derive_more::{Display, From}; +use muxink::backpressured::Ticket; use prometheus::Registry; use rand::Rng; use reactor::ReactorEvent; @@ -634,6 +635,7 @@ async fn should_not_gossip_old_stored_item_again() { let event = Event::DeployGossiperIncoming(GossiperIncoming { sender: node_ids[1], message: Message::Gossip(deploy.gossip_id()), + ticket: Arc::new(Ticket::create_dummy()), }); effect_builder .into_inner() @@ -706,6 +708,7 @@ async fn should_ignore_unexpected_message(message_type: Unexpected) { let event = Event::DeployGossiperIncoming(GossiperIncoming { sender: node_ids[1], message, + ticket: Arc::new(Ticket::create_dummy()), }); effect_builder .into_inner() diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index ad413c10a1..43161b6141 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -124,12 +124,13 @@ impl From for Event { } impl FromIncoming for Event { - fn from_incoming(sender: NodeId, payload: Message, _ticket: Ticket) -> Self { - // Note: `ticket` is dropped directly, no backpressure is used in the test reactor. + fn from_incoming(sender: NodeId, payload: Message, ticket: Ticket) -> Self { match payload { - Message::AddressGossiper(message) => { - Event::AddressGossiperIncoming(GossiperIncoming { sender, message }) - } + Message::AddressGossiper(message) => Event::AddressGossiperIncoming(GossiperIncoming { + sender, + message, + ticket: Arc::new(ticket), + }), } } } diff --git a/node/src/effect/incoming.rs b/node/src/effect/incoming.rs index 2e58a5ee92..f0bd953341 100644 --- a/node/src/effect/incoming.rs +++ b/node/src/effect/incoming.rs @@ -8,6 +8,7 @@ use std::{ }; use datasize::DataSize; +use muxink::backpressured::Ticket; use serde::Serialize; use crate::{ @@ -18,11 +19,13 @@ use crate::{ use super::AutoClosingResponder; -/// An envelope for an incoming message, attaching a sender address. +/// An envelope for an incoming message, attaching a sender address and a backpressure ticket. #[derive(DataSize, Debug, Serialize)] pub struct MessageIncoming { pub(crate) sender: NodeId, pub(crate) message: M, + #[serde(skip)] + pub(crate) ticket: Arc, } impl Display for MessageIncoming diff --git a/node/src/protocol.rs b/node/src/protocol.rs index f5225521e0..7ba9538912 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -287,63 +287,95 @@ where + From, { fn from_incoming(sender: NodeId, payload: Message, ticket: Ticket) -> Self { - drop(ticket); // TODO + let ticket = Arc::new(ticket); match payload { - Message::Consensus(message) => ConsensusMessageIncoming { sender, message }.into(), + Message::Consensus(message) => ConsensusMessageIncoming { + sender, + message, + ticket, + } + .into(), Message::ConsensusRequest(_message) => { // TODO: Remove this once from_incoming and try_demand_from_incoming are unified. unreachable!("called from_incoming with a consensus request") } - Message::BlockGossiper(message) => GossiperIncoming { sender, message }.into(), - Message::DeployGossiper(message) => GossiperIncoming { sender, message }.into(), - Message::FinalitySignatureGossiper(message) => { - GossiperIncoming { sender, message }.into() + Message::BlockGossiper(message) => GossiperIncoming { + sender, + message, + ticket, + } + .into(), + Message::DeployGossiper(message) => GossiperIncoming { + sender, + message, + ticket, + } + .into(), + Message::FinalitySignatureGossiper(message) => GossiperIncoming { + sender, + message, + ticket, + } + .into(), + Message::AddressGossiper(message) => GossiperIncoming { + sender, + message, + ticket, } - Message::AddressGossiper(message) => GossiperIncoming { sender, message }.into(), + .into(), Message::GetRequest { tag, serialized_id } => match tag { Tag::Deploy => NetRequestIncoming { sender, message: NetRequest::Deploy(serialized_id), + ticket, } .into(), Tag::LegacyDeploy => NetRequestIncoming { sender, message: NetRequest::LegacyDeploy(serialized_id), + ticket, } .into(), Tag::Block => NetRequestIncoming { sender, message: NetRequest::Block(serialized_id), + ticket, } .into(), Tag::BlockHeader => NetRequestIncoming { sender, message: NetRequest::BlockHeader(serialized_id), + ticket, } .into(), Tag::TrieOrChunk => TrieRequestIncoming { sender, message: TrieRequest(serialized_id), + ticket, } .into(), Tag::FinalitySignature => NetRequestIncoming { sender, message: NetRequest::FinalitySignature(serialized_id), + ticket, } .into(), Tag::SyncLeap => NetRequestIncoming { sender, message: NetRequest::SyncLeap(serialized_id), + ticket, } .into(), Tag::ApprovalsHashes => NetRequestIncoming { sender, message: NetRequest::ApprovalsHashes(serialized_id), + ticket, } .into(), Tag::BlockExecutionResults => NetRequestIncoming { sender, message: NetRequest::BlockExecutionResults(serialized_id), + ticket, } .into(), }, @@ -354,52 +386,64 @@ where Tag::Deploy => NetResponseIncoming { sender, message: NetResponse::Deploy(serialized_item), + ticket, } .into(), Tag::LegacyDeploy => NetResponseIncoming { sender, message: NetResponse::LegacyDeploy(serialized_item), + ticket, } .into(), Tag::Block => NetResponseIncoming { sender, message: NetResponse::Block(serialized_item), + ticket, } .into(), Tag::BlockHeader => NetResponseIncoming { sender, message: NetResponse::BlockHeader(serialized_item), + ticket, } .into(), Tag::TrieOrChunk => TrieResponseIncoming { sender, message: TrieResponse(serialized_item.to_vec()), + ticket, } .into(), Tag::FinalitySignature => NetResponseIncoming { sender, message: NetResponse::FinalitySignature(serialized_item), + ticket, } .into(), Tag::SyncLeap => NetResponseIncoming { sender, message: NetResponse::SyncLeap(serialized_item), + ticket, } .into(), Tag::ApprovalsHashes => NetResponseIncoming { sender, message: NetResponse::ApprovalsHashes(serialized_item), + ticket, } .into(), Tag::BlockExecutionResults => NetResponseIncoming { sender, message: NetResponse::BlockExecutionResults(serialized_item), + ticket, } .into(), }, - Message::FinalitySignature(message) => { - FinalitySignatureIncoming { sender, message }.into() + Message::FinalitySignature(message) => FinalitySignatureIncoming { + sender, + message, + ticket, } + .into(), } } diff --git a/node/src/reactor/main_reactor.rs b/node/src/reactor/main_reactor.rs index ba236b3b85..03fbf444f2 100644 --- a/node/src/reactor/main_reactor.rs +++ b/node/src/reactor/main_reactor.rs @@ -386,9 +386,11 @@ impl reactor::Reactor for MainReactor { self.storage .handle_event(effect_builder, rng, incoming.into()), ), - MainEvent::NetworkPeerProvidingData(NetResponseIncoming { sender, message }) => { - reactor::handle_get_response(self, effect_builder, rng, sender, message) - } + MainEvent::NetworkPeerProvidingData(NetResponseIncoming { + sender, + message, + ticket: _, // TODO: Properly handle ticket. + }) => reactor::handle_get_response(self, effect_builder, rng, sender, message), MainEvent::AddressGossiper(event) => reactor::wrap_effects( MainEvent::AddressGossiper, self.address_gossiper @@ -837,15 +839,17 @@ impl reactor::Reactor for MainReactor { self.contract_runtime .handle_event(effect_builder, rng, demand.into()), ), - MainEvent::TrieResponseIncoming(TrieResponseIncoming { sender, message }) => { - reactor::handle_fetch_response::( - self, - effect_builder, - rng, - sender, - &message.0, - ) - } + MainEvent::TrieResponseIncoming(TrieResponseIncoming { + sender, + message, + ticket: _, // TODO: Sensibly process ticket. + }) => reactor::handle_fetch_response::( + self, + effect_builder, + rng, + sender, + &message.0, + ), // STORAGE MainEvent::Storage(event) => reactor::wrap_effects( From 27fadee30320a09d4292bbf721113ef5f7525c23 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 16 Mar 2023 12:02:27 +0100 Subject: [PATCH 342/735] Reimplement a timeout for handshakes --- node/src/components/network.rs | 3 ++- node/src/components/network/error.rs | 3 +++ node/src/components/network/handshake.rs | 19 +++++++++++++++++++ node/src/components/network/tasks.rs | 3 +-- 4 files changed, 25 insertions(+), 3 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index a48be57a29..e9114c1c4f 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -716,7 +716,8 @@ where | ConnectionError::TlsHandshake(_) | ConnectionError::HandshakeSend(_) | ConnectionError::HandshakeRecv(_) - | ConnectionError::IncompatibleVersion(_) => None, + | ConnectionError::IncompatibleVersion(_) + | ConnectionError::HandshakeTimeout => None, // These errors are potential bugs on our side. ConnectionError::HandshakeSenderCrashed(_) diff --git a/node/src/components/network/error.rs b/node/src/components/network/error.rs index f384ae75a8..bc02cc6a6c 100644 --- a/node/src/components/network/error.rs +++ b/node/src/components/network/error.rs @@ -165,6 +165,9 @@ pub enum ConnectionError { /// Peer did not send any message, or a non-handshake as its first message. #[error("peer did not send handshake")] DidNotSendHandshake, + /// Handshake did not complete in time. + #[error("could not complete handshake in time")] + HandshakeTimeout, /// Failed to encode our handshake. #[error("could not encode our handshake")] CouldNotEncodeOurHandshake( diff --git a/node/src/components/network/handshake.rs b/node/src/components/network/handshake.rs index d6bdee9779..0f9ef8bfe1 100644 --- a/node/src/components/network/handshake.rs +++ b/node/src/components/network/handshake.rs @@ -109,6 +109,25 @@ pub(super) async fn negotiate_handshake( transport: Transport, connection_id: ConnectionId, ) -> Result +where + P: Payload, +{ + tokio::time::timeout( + context.handshake_timeout.into(), + do_negotiate_handshake::(context, transport, connection_id), + ) + .await + .unwrap_or_else(|_elapsed| Err(ConnectionError::HandshakeTimeout)) +} + +/// Performs a handshake. +/// +/// This function is cancellation safe. +async fn do_negotiate_handshake( + context: &NetworkContext, + transport: Transport, + connection_id: ConnectionId, +) -> Result where P: Payload, { diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 89d214ee2d..09f744d821 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -238,8 +238,7 @@ where /// Our own public listening address. public_addr: Option, /// Timeout for handshake completion. - #[allow(dead_code)] // TODO: Readd once handshake timeout is readded. - handshake_timeout: TimeDiff, + pub(super) handshake_timeout: TimeDiff, /// Weights to estimate payloads with. payload_weights: EstimatorWeights, /// The protocol version at which (or under) tarpitting is enabled. From 65d6d1423874fb33f78cde50e346cf240ddac74c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 16 Mar 2023 12:12:37 +0100 Subject: [PATCH 343/735] Remove unused dependency on `futures-io` --- Cargo.lock | 1 - node/Cargo.toml | 1 - 2 files changed, 2 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index e554206f1c..ef809250c5 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -563,7 +563,6 @@ dependencies = [ "fake_instant", "fs2", "futures", - "futures-io", "hex-buffer-serde 0.3.0", "hex_fmt", "hostname", diff --git a/node/Cargo.toml b/node/Cargo.toml index e1a3ff6998..f480a3e02e 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -34,7 +34,6 @@ enum-iterator = "0.6.0" erased-serde = "0.3.18" fs2 = "0.4.3" futures = { version = "0.3.21" } -futures-io = "0.3.5" hex-buffer-serde = "0.3.0" hex_fmt = "0.3.0" hostname = "0.3.0" From d065cf1e49e2f9cfb5a62c1f8ce4db7c972fdd82 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 16 Mar 2023 12:16:20 +0100 Subject: [PATCH 344/735] muxink: Fix some typos in `little_endian.rs` --- muxink/src/little_endian.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/muxink/src/little_endian.rs b/muxink/src/little_endian.rs index fa8bae4c06..bb0d981a94 100644 --- a/muxink/src/little_endian.rs +++ b/muxink/src/little_endian.rs @@ -1,4 +1,4 @@ -/// Little-endian integer encoding. +/// Little-endian integer codec. use std::{ marker::PhantomData, pin::Pin, @@ -9,7 +9,7 @@ use bytes::Bytes; use futures::{Sink, SinkExt, Stream, StreamExt}; use thiserror::Error; -/// Little endian integer encoder. +/// Little endian integer codec. /// /// Integers encoded or decoded through this sink/stream wrapper are encoded/decoded as little /// endian integers (via `ImmediateFrame` when encoding) before being forwarded to the underlying @@ -21,7 +21,7 @@ pub struct LittleEndian { inner: S, /// Phantom data pinning the accepted type. /// - /// While an encoder would not need to restrict `T`, it still is limited to a single type + /// While an encoder would not need to restrict `T`, it still is limited to a single type for /// type safety. _type_pin: PhantomData, } From 94e50a783a412112fbefaa7dbd3b201e076eea6b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 16 Mar 2023 12:20:20 +0100 Subject: [PATCH 345/735] Fix formatting using nightly formatter --- node/src/components/network.rs | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index e9114c1c4f..270da4d601 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -79,8 +79,7 @@ use rand::{ }; use strum::EnumCount; use tokio::{ - io::ReadHalf, - io::WriteHalf, + io::{ReadHalf, WriteHalf}, net::TcpStream, sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, task::JoinHandle, From 404bda282b5e1adb5967f21f7258d3c982c51f26 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 16 Mar 2023 16:46:20 +0100 Subject: [PATCH 346/735] Comment out `track_caller` annotations, as they now trigger clippy warnings --- node/src/testing/network.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index 48f41a873d..ff0c2da95a 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -369,7 +369,7 @@ where /// If the `condition` is not reached inside of `within`, panics. // Note: `track_caller` will not have an effect until // is fixed. - #[track_caller] + // #[track_caller] /// To settle on an exit code, use `settle_on_exit` instead. pub(crate) async fn settle_on(&mut self, rng: &mut TestRng, condition: F, within: Duration) where @@ -380,7 +380,7 @@ where .unwrap_or_else(|_| panic!("network did not settle on condition within {:?}", within)) } - #[track_caller] + // #[track_caller] async fn settle_on_indefinitely(&mut self, rng: &mut TestRng, condition: F) where F: Fn(&Nodes) -> bool, From 45894be31cf84fc6ae89ba44f33b45db6e2937a3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 16 Mar 2023 16:48:24 +0100 Subject: [PATCH 347/735] Allow large enum variants on `IncomingConnection` --- node/src/components/network/event.rs | 2 ++ 1 file changed, 2 insertions(+) diff --git a/node/src/components/network/event.rs b/node/src/components/network/event.rs index 1111aa4063..e99c30247c 100644 --- a/node/src/components/network/event.rs +++ b/node/src/components/network/event.rs @@ -159,6 +159,8 @@ where } /// Outcome of an incoming connection negotiation. +// Note: `IncomingConnection` is typically used boxed anyway, so a larget variant is not an issue. +#[allow(clippy::large_enum_variant)] #[derive(Debug, Serialize)] pub(crate) enum IncomingConnection { /// The connection failed early on, before even a peer's [`NodeId`] could be determined. From 25526c22a926577801c6a887731d361ce84d5b0b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 29 Mar 2023 14:13:26 +0200 Subject: [PATCH 348/735] Add first implementation for `RegisteredMetric` in `utils` --- node/src/utils.rs | 48 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/node/src/utils.rs b/node/src/utils.rs index 209791d2be..be894ac03d 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -31,7 +31,7 @@ use fs2::FileExt; use futures::future::Either; use hyper::server::{conn::AddrIncoming, Builder, Server}; -use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; +use prometheus::{self, core::Collector, Histogram, HistogramOpts, IntGauge, Registry}; use serde::Serialize; use thiserror::Error; use tracing::{error, warn}; @@ -490,6 +490,52 @@ impl Peel for Either<(A, G), (B, F)> { } } +#[derive(Debug)] +pub(crate) struct RegisteredMetric +where + T: Collector, +{ + metric: Option>, + registry: Registry, +} + +impl RegisteredMetric +where + T: Collector, +{ + pub(crate) fn new(registry: Registry, metric: T) -> Result + where + T: Clone + 'static, + { + let boxed_metric = Box::new(metric); + registry.register(boxed_metric.clone())?; + + Ok(RegisteredMetric { + metric: Some(boxed_metric), + registry, + }) + } +} + +impl Drop for RegisteredMetric +where + T: Collector, +{ + fn drop(&mut self) { + if let Some(boxed_metric) = self.metric.take() { + let desc = boxed_metric + .desc() + .iter() + .next() + .map(|desc| desc.fq_name.clone()) + .unwrap_or_default(); + self.registry.unregister(boxed_metric).unwrap_or_else(|_| { + tracing::error!("unregistering {} failed: was not registered", desc) + }) + } + } +} + #[cfg(test)] mod tests { use std::{sync::Arc, time::Duration}; From 5bfa91bb520b09903ca0f8f51d6281bf3f499d3c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 29 Mar 2023 14:19:16 +0200 Subject: [PATCH 349/735] Transform `broadcast_requests` as experimental metric --- node/src/components/network/metrics.rs | 27 ++++++------ node/src/utils.rs | 60 +++++++++++++++++++++++--- 2 files changed, 67 insertions(+), 20 deletions(-) diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index 0a3fc59029..5d9617b646 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -4,15 +4,18 @@ use prometheus::{Counter, IntCounter, IntGauge, Registry}; use tracing::debug; use super::{outgoing::OutgoingMetrics, MessageKind}; -use crate::unregister_metric; +use crate::{ + unregister_metric, + utils::{RegisteredMetric, RegistryExt}, +}; /// Network-type agnostic networking metrics. #[derive(Debug)] pub(super) struct Metrics { /// How often a request was made by a component to broadcast. - pub(super) broadcast_requests: IntCounter, + pub(super) broadcast_requests: RegisteredMetric, /// How often a request to send a message directly to a peer was made. - pub(super) direct_message_requests: IntCounter, + pub(super) direct_message_requests: RegisteredMetric, /// Number of messages still waiting to be sent out (broadcast and direct). pub(super) queued_messages: IntGauge, /// Number of connected peers. @@ -122,12 +125,6 @@ pub(super) struct Metrics { impl Metrics { /// Creates a new instance of networking metrics. pub(super) fn new(registry: &Registry) -> Result { - let broadcast_requests = - IntCounter::new("net_broadcast_requests", "number of broadcasting requests")?; - let direct_message_requests = IntCounter::new( - "net_direct_message_requests", - "number of requests to send a message directly to a peer", - )?; let queued_messages = IntGauge::new( "net_queued_direct_messages", "number of messages waiting to be sent out", @@ -337,8 +334,6 @@ impl Metrics { "seconds spent delaying incoming traffic from non-validators due to limiter, in seconds." )?; - registry.register(Box::new(broadcast_requests.clone()))?; - registry.register(Box::new(direct_message_requests.clone()))?; registry.register(Box::new(queued_messages.clone()))?; registry.register(Box::new(peers.clone()))?; @@ -399,8 +394,12 @@ impl Metrics { registry.register(Box::new(accumulated_incoming_limiter_delay.clone()))?; Ok(Metrics { - broadcast_requests, - direct_message_requests, + broadcast_requests: registry + .new_int_counter("net_broadcast_requests", "number of broadcasting requests")?, + direct_message_requests: registry.new_int_counter( + "net_direct_message_requests", + "number of requests to send a message directly to a peer", + )?, queued_messages, peers, out_count_protocol, @@ -594,8 +593,6 @@ impl Metrics { impl Drop for Metrics { fn drop(&mut self) { - unregister_metric!(self.registry, self.broadcast_requests); - unregister_metric!(self.registry, self.direct_message_requests); unregister_metric!(self.registry, self.queued_messages); unregister_metric!(self.registry, self.peers); diff --git a/node/src/utils.rs b/node/src/utils.rs index be894ac03d..3e866650d1 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -31,7 +31,11 @@ use fs2::FileExt; use futures::future::Either; use hyper::server::{conn::AddrIncoming, Builder, Server}; -use prometheus::{self, core::Collector, Histogram, HistogramOpts, IntGauge, Registry}; +use prometheus::{ + self, + core::{Atomic, Collector, GenericCounter}, + Histogram, HistogramOpts, IntCounter, IntGauge, Registry, +}; use serde::Serialize; use thiserror::Error; use tracing::{error, warn}; @@ -493,7 +497,7 @@ impl Peel for Either<(A, G), (B, F)> { #[derive(Debug)] pub(crate) struct RegisteredMetric where - T: Collector, + T: Collector + 'static, { metric: Option>, registry: Registry, @@ -501,11 +505,11 @@ where impl RegisteredMetric where - T: Collector, + T: Collector + 'static, { pub(crate) fn new(registry: Registry, metric: T) -> Result where - T: Clone + 'static, + T: Clone, { let boxed_metric = Box::new(metric); registry.register(boxed_metric.clone())?; @@ -515,11 +519,26 @@ where registry, }) } + + #[inline] + pub(crate) fn inner(&self) -> &T { + self.metric.as_ref().expect("metric disappeared") + } +} + +impl

RegisteredMetric> +where + P: Atomic, +{ + #[inline] + pub(crate) fn inc(&self) { + self.inner().inc() + } } impl Drop for RegisteredMetric where - T: Collector, + T: Collector + 'static, { fn drop(&mut self) { if let Some(boxed_metric) = self.metric.take() { @@ -536,6 +555,37 @@ where } } +pub(crate) trait RegistryExt { + fn new_int_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error>; + fn new_int_gauge, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error>; +} + +impl RegistryExt for Registry { + fn new_int_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), IntCounter::new(name, help)?) + } + + fn new_int_gauge, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), IntGauge::new(name, help)?) + } +} + #[cfg(test)] mod tests { use std::{sync::Arc, time::Duration}; From 988c63b590b37140fe5d636e4acd4cc1e9b01776 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 16:26:41 +0200 Subject: [PATCH 350/735] Create `utils::registered_metric` module and move code over --- node/src/components/network/metrics.rs | 2 +- node/src/utils.rs | 99 +---------------------- node/src/utils/registered_metric.rs | 106 +++++++++++++++++++++++++ 3 files changed, 109 insertions(+), 98 deletions(-) create mode 100644 node/src/utils/registered_metric.rs diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index 5d9617b646..5e76b4a642 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -6,7 +6,7 @@ use tracing::debug; use super::{outgoing::OutgoingMetrics, MessageKind}; use crate::{ unregister_metric, - utils::{RegisteredMetric, RegistryExt}, + utils::registered_metric::{RegisteredMetric, RegistryExt}, }; /// Network-type agnostic networking metrics. diff --git a/node/src/utils.rs b/node/src/utils.rs index 3e866650d1..b8850e3c15 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -8,6 +8,7 @@ mod external; pub(crate) mod fmt_limit; mod fuse; pub(crate) mod opt_display; +pub(crate) mod registered_metric; pub(crate) mod rlimit; pub(crate) mod round_robin; pub(crate) mod umask; @@ -31,11 +32,7 @@ use fs2::FileExt; use futures::future::Either; use hyper::server::{conn::AddrIncoming, Builder, Server}; -use prometheus::{ - self, - core::{Atomic, Collector, GenericCounter}, - Histogram, HistogramOpts, IntCounter, IntGauge, Registry, -}; +use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; use serde::Serialize; use thiserror::Error; use tracing::{error, warn}; @@ -494,98 +491,6 @@ impl Peel for Either<(A, G), (B, F)> { } } -#[derive(Debug)] -pub(crate) struct RegisteredMetric -where - T: Collector + 'static, -{ - metric: Option>, - registry: Registry, -} - -impl RegisteredMetric -where - T: Collector + 'static, -{ - pub(crate) fn new(registry: Registry, metric: T) -> Result - where - T: Clone, - { - let boxed_metric = Box::new(metric); - registry.register(boxed_metric.clone())?; - - Ok(RegisteredMetric { - metric: Some(boxed_metric), - registry, - }) - } - - #[inline] - pub(crate) fn inner(&self) -> &T { - self.metric.as_ref().expect("metric disappeared") - } -} - -impl

RegisteredMetric> -where - P: Atomic, -{ - #[inline] - pub(crate) fn inc(&self) { - self.inner().inc() - } -} - -impl Drop for RegisteredMetric -where - T: Collector + 'static, -{ - fn drop(&mut self) { - if let Some(boxed_metric) = self.metric.take() { - let desc = boxed_metric - .desc() - .iter() - .next() - .map(|desc| desc.fq_name.clone()) - .unwrap_or_default(); - self.registry.unregister(boxed_metric).unwrap_or_else(|_| { - tracing::error!("unregistering {} failed: was not registered", desc) - }) - } - } -} - -pub(crate) trait RegistryExt { - fn new_int_counter, S2: Into>( - &self, - name: S1, - help: S2, - ) -> Result, prometheus::Error>; - fn new_int_gauge, S2: Into>( - &self, - name: S1, - help: S2, - ) -> Result, prometheus::Error>; -} - -impl RegistryExt for Registry { - fn new_int_counter, S2: Into>( - &self, - name: S1, - help: S2, - ) -> Result, prometheus::Error> { - RegisteredMetric::new(self.clone(), IntCounter::new(name, help)?) - } - - fn new_int_gauge, S2: Into>( - &self, - name: S1, - help: S2, - ) -> Result, prometheus::Error> { - RegisteredMetric::new(self.clone(), IntGauge::new(name, help)?) - } -} - #[cfg(test)] mod tests { use std::{sync::Arc, time::Duration}; diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs new file mode 100644 index 0000000000..e78b69f1a0 --- /dev/null +++ b/node/src/utils/registered_metric.rs @@ -0,0 +1,106 @@ +//! Self registereing and deregistering metrics support. + +use prometheus::{ + core::{Atomic, Collector, GenericCounter}, + IntCounter, IntGauge, Registry, +}; + +/// A metric wrapper that will deregister the metric from a given registry on drop. +#[derive(Debug)] +pub(crate) struct RegisteredMetric +where + T: Collector + 'static, +{ + metric: Option>, + registry: Registry, +} + +impl RegisteredMetric +where + T: Collector + 'static, +{ + /// Creates a new self-deregistering metric. + pub(crate) fn new(registry: Registry, metric: T) -> Result + where + T: Clone, + { + let boxed_metric = Box::new(metric); + registry.register(boxed_metric.clone())?; + + Ok(RegisteredMetric { + metric: Some(boxed_metric), + registry, + }) + } + + /// Returns a reference to the inner metric. + #[inline] + fn inner(&self) -> &T { + self.metric.as_ref().expect("metric disappeared") + } +} + +impl

RegisteredMetric> +where + P: Atomic, +{ + /// Increment the counter. + #[inline] + pub(crate) fn inc(&self) { + self.inner().inc() + } +} + +impl Drop for RegisteredMetric +where + T: Collector + 'static, +{ + fn drop(&mut self) { + if let Some(boxed_metric) = self.metric.take() { + let desc = boxed_metric + .desc() + .iter() + .next() + .map(|desc| desc.fq_name.clone()) + .unwrap_or_default(); + self.registry.unregister(boxed_metric).unwrap_or_else(|_| { + tracing::error!("unregistering {} failed: was not registered", desc) + }) + } + } +} + +/// Extension trait for [`Registry`] instances. +pub(crate) trait RegistryExt { + /// Creates a new [`IntCounter`] registered to this registry. + fn new_int_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error>; + + /// Creates a new [`IntGauge`] registered to this registry. + fn new_int_gauge, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error>; +} + +impl RegistryExt for Registry { + fn new_int_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), IntCounter::new(name, help)?) + } + + fn new_int_gauge, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), IntGauge::new(name, help)?) + } +} From ff62aa90ccd2128d7e9f6235a8a86aaf6c41b665 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 16:47:52 +0200 Subject: [PATCH 351/735] Completely transform network metrics to use new macroless registered metrics code --- node/src/components/network.rs | 12 +- node/src/components/network/metrics.rs | 366 +++++++++---------------- node/src/utils/registered_metric.rs | 59 +++- 3 files changed, 186 insertions(+), 251 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 270da4d601..917054a837 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -255,13 +255,19 @@ where let outgoing_limiter = Limiter::new( cfg.max_outgoing_byte_rate_non_validators, - net_metrics.accumulated_outgoing_limiter_delay.clone(), + net_metrics + .accumulated_outgoing_limiter_delay + .inner() + .clone(), validator_matrix.clone(), ); let incoming_limiter = Limiter::new( cfg.max_incoming_message_rate_non_validators, - net_metrics.accumulated_incoming_limiter_delay.clone(), + net_metrics + .accumulated_incoming_limiter_delay + .inner() + .clone(), validator_matrix, ); @@ -506,7 +512,7 @@ where }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - let send_token = TokenizedCount::new(self.net_metrics.queued_messages.clone()); + let send_token = TokenizedCount::new(self.net_metrics.queued_messages.inner().clone()); if let Err(refused_message) = sender.send(EncodedMessage::new(payload, opt_responder, send_token)) diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index 5e76b4a642..60de859313 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -4,10 +4,7 @@ use prometheus::{Counter, IntCounter, IntGauge, Registry}; use tracing::debug; use super::{outgoing::OutgoingMetrics, MessageKind}; -use crate::{ - unregister_metric, - utils::registered_metric::{RegisteredMetric, RegistryExt}, -}; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; /// Network-type agnostic networking metrics. #[derive(Debug)] @@ -17,389 +14,336 @@ pub(super) struct Metrics { /// How often a request to send a message directly to a peer was made. pub(super) direct_message_requests: RegisteredMetric, /// Number of messages still waiting to be sent out (broadcast and direct). - pub(super) queued_messages: IntGauge, + pub(super) queued_messages: RegisteredMetric, /// Number of connected peers. - pub(super) peers: IntGauge, + pub(super) peers: RegisteredMetric, /// Count of outgoing messages that are protocol overhead. - pub(super) out_count_protocol: IntCounter, + pub(super) out_count_protocol: RegisteredMetric, /// Count of outgoing messages with consensus payload. - pub(super) out_count_consensus: IntCounter, + pub(super) out_count_consensus: RegisteredMetric, /// Count of outgoing messages with deploy gossiper payload. - pub(super) out_count_deploy_gossip: IntCounter, - pub(super) out_count_block_gossip: IntCounter, - pub(super) out_count_finality_signature_gossip: IntCounter, + pub(super) out_count_deploy_gossip: RegisteredMetric, + pub(super) out_count_block_gossip: RegisteredMetric, + pub(super) out_count_finality_signature_gossip: RegisteredMetric, /// Count of outgoing messages with address gossiper payload. - pub(super) out_count_address_gossip: IntCounter, + pub(super) out_count_address_gossip: RegisteredMetric, /// Count of outgoing messages with deploy request/response payload. - pub(super) out_count_deploy_transfer: IntCounter, + pub(super) out_count_deploy_transfer: RegisteredMetric, /// Count of outgoing messages with block request/response payload. - pub(super) out_count_block_transfer: IntCounter, + pub(super) out_count_block_transfer: RegisteredMetric, /// Count of outgoing messages with trie request/response payload. - pub(super) out_count_trie_transfer: IntCounter, + pub(super) out_count_trie_transfer: RegisteredMetric, /// Count of outgoing messages with other payload. - pub(super) out_count_other: IntCounter, + pub(super) out_count_other: RegisteredMetric, /// Volume in bytes of outgoing messages that are protocol overhead. - pub(super) out_bytes_protocol: IntCounter, + pub(super) out_bytes_protocol: RegisteredMetric, /// Volume in bytes of outgoing messages with consensus payload. - pub(super) out_bytes_consensus: IntCounter, + pub(super) out_bytes_consensus: RegisteredMetric, /// Volume in bytes of outgoing messages with deploy gossiper payload. - pub(super) out_bytes_deploy_gossip: IntCounter, - pub(super) out_bytes_block_gossip: IntCounter, - pub(super) out_bytes_finality_signature_gossip: IntCounter, + pub(super) out_bytes_deploy_gossip: RegisteredMetric, + /// Volume in bytes of outgoing messages with block gossiper payload. + pub(super) out_bytes_block_gossip: RegisteredMetric, + /// Volume in bytes of outgoing messages with finality signature payload. + pub(super) out_bytes_finality_signature_gossip: RegisteredMetric, /// Volume in bytes of outgoing messages with address gossiper payload. - pub(super) out_bytes_address_gossip: IntCounter, + pub(super) out_bytes_address_gossip: RegisteredMetric, /// Volume in bytes of outgoing messages with deploy request/response payload. - pub(super) out_bytes_deploy_transfer: IntCounter, + pub(super) out_bytes_deploy_transfer: RegisteredMetric, /// Volume in bytes of outgoing messages with block request/response payload. - pub(super) out_bytes_block_transfer: IntCounter, + pub(super) out_bytes_block_transfer: RegisteredMetric, /// Volume in bytes of outgoing messages with block request/response payload. - pub(super) out_bytes_trie_transfer: IntCounter, + pub(super) out_bytes_trie_transfer: RegisteredMetric, /// Volume in bytes of outgoing messages with other payload. - pub(super) out_bytes_other: IntCounter, + pub(super) out_bytes_other: RegisteredMetric, /// Number of outgoing connections in connecting state. - pub(super) out_state_connecting: IntGauge, + pub(super) out_state_connecting: RegisteredMetric, /// Number of outgoing connections in waiting state. - pub(super) out_state_waiting: IntGauge, + pub(super) out_state_waiting: RegisteredMetric, /// Number of outgoing connections in connected state. - pub(super) out_state_connected: IntGauge, + pub(super) out_state_connected: RegisteredMetric, /// Number of outgoing connections in blocked state. - pub(super) out_state_blocked: IntGauge, + pub(super) out_state_blocked: RegisteredMetric, /// Number of outgoing connections in loopback state. - pub(super) out_state_loopback: IntGauge, + pub(super) out_state_loopback: RegisteredMetric, /// Volume in bytes of incoming messages that are protocol overhead. - pub(super) in_bytes_protocol: IntCounter, + pub(super) in_bytes_protocol: RegisteredMetric, /// Volume in bytes of incoming messages with consensus payload. - pub(super) in_bytes_consensus: IntCounter, + pub(super) in_bytes_consensus: RegisteredMetric, /// Volume in bytes of incoming messages with deploy gossiper payload. - pub(super) in_bytes_deploy_gossip: IntCounter, - pub(super) in_bytes_block_gossip: IntCounter, - pub(super) in_bytes_finality_signature_gossip: IntCounter, + pub(super) in_bytes_deploy_gossip: RegisteredMetric, + /// Volume in bytes of incoming messages with block gossiper payload. + pub(super) in_bytes_block_gossip: RegisteredMetric, + /// Volume in bytes of incoming messages with finality signature gossiper payload. + pub(super) in_bytes_finality_signature_gossip: RegisteredMetric, /// Volume in bytes of incoming messages with address gossiper payload. - pub(super) in_bytes_address_gossip: IntCounter, + pub(super) in_bytes_address_gossip: RegisteredMetric, /// Volume in bytes of incoming messages with deploy request/response payload. - pub(super) in_bytes_deploy_transfer: IntCounter, + pub(super) in_bytes_deploy_transfer: RegisteredMetric, /// Volume in bytes of incoming messages with block request/response payload. - pub(super) in_bytes_block_transfer: IntCounter, + pub(super) in_bytes_block_transfer: RegisteredMetric, /// Volume in bytes of incoming messages with block request/response payload. - pub(super) in_bytes_trie_transfer: IntCounter, + pub(super) in_bytes_trie_transfer: RegisteredMetric, /// Volume in bytes of incoming messages with other payload. - pub(super) in_bytes_other: IntCounter, + pub(super) in_bytes_other: RegisteredMetric, /// Count of incoming messages that are protocol overhead. - pub(super) in_count_protocol: IntCounter, + pub(super) in_count_protocol: RegisteredMetric, /// Count of incoming messages with consensus payload. - pub(super) in_count_consensus: IntCounter, + pub(super) in_count_consensus: RegisteredMetric, /// Count of incoming messages with deploy gossiper payload. - pub(super) in_count_deploy_gossip: IntCounter, - pub(super) in_count_block_gossip: IntCounter, - pub(super) in_count_finality_signature_gossip: IntCounter, + pub(super) in_count_deploy_gossip: RegisteredMetric, + /// Count of incoming messages with block gossiper payload. + pub(super) in_count_block_gossip: RegisteredMetric, + /// Count of incoming messages with finality signature gossiper payload. + pub(super) in_count_finality_signature_gossip: RegisteredMetric, /// Count of incoming messages with address gossiper payload. - pub(super) in_count_address_gossip: IntCounter, + pub(super) in_count_address_gossip: RegisteredMetric, /// Count of incoming messages with deploy request/response payload. - pub(super) in_count_deploy_transfer: IntCounter, + pub(super) in_count_deploy_transfer: RegisteredMetric, /// Count of incoming messages with block request/response payload. - pub(super) in_count_block_transfer: IntCounter, + pub(super) in_count_block_transfer: RegisteredMetric, /// Count of incoming messages with trie request/response payload. - pub(super) in_count_trie_transfer: IntCounter, + pub(super) in_count_trie_transfer: RegisteredMetric, /// Count of incoming messages with other payload. - pub(super) in_count_other: IntCounter, + pub(super) in_count_other: RegisteredMetric, /// Number of trie requests accepted for processing. - pub(super) requests_for_trie_accepted: IntCounter, + pub(super) requests_for_trie_accepted: RegisteredMetric, /// Number of trie requests finished (successful or unsuccessful). - pub(super) requests_for_trie_finished: IntCounter, + pub(super) requests_for_trie_finished: RegisteredMetric, /// Total time spent delaying outgoing traffic to non-validators due to limiter, in seconds. - pub(super) accumulated_outgoing_limiter_delay: Counter, + pub(super) accumulated_outgoing_limiter_delay: RegisteredMetric, /// Total time spent delaying incoming traffic from non-validators due to limiter, in seconds. - pub(super) accumulated_incoming_limiter_delay: Counter, - - /// Registry instance. - registry: Registry, + pub(super) accumulated_incoming_limiter_delay: RegisteredMetric, } impl Metrics { /// Creates a new instance of networking metrics. pub(super) fn new(registry: &Registry) -> Result { - let queued_messages = IntGauge::new( + let broadcast_requests = registry + .new_int_counter("net_broadcast_requests", "number of broadcasting requests")?; + let direct_message_requests = registry.new_int_counter( + "net_direct_message_requests", + "number of requests to send a message directly to a peer", + )?; + + let queued_messages = registry.new_int_gauge( "net_queued_direct_messages", "number of messages waiting to be sent out", )?; - let peers = IntGauge::new("peers", "number of connected peers")?; + let peers = registry.new_int_gauge("peers", "number of connected peers")?; - let out_count_protocol = IntCounter::new( + let out_count_protocol = registry.new_int_counter( "net_out_count_protocol", "count of outgoing messages that are protocol overhead", )?; - let out_count_consensus = IntCounter::new( + let out_count_consensus = registry.new_int_counter( "net_out_count_consensus", "count of outgoing messages with consensus payload", )?; - let out_count_deploy_gossip = IntCounter::new( + let out_count_deploy_gossip = registry.new_int_counter( "net_out_count_deploy_gossip", "count of outgoing messages with deploy gossiper payload", )?; - let out_count_block_gossip = IntCounter::new( + let out_count_block_gossip = registry.new_int_counter( "net_out_count_block_gossip", "count of outgoing messages with block gossiper payload", )?; - let out_count_finality_signature_gossip = IntCounter::new( + let out_count_finality_signature_gossip = registry.new_int_counter( "net_out_count_finality_signature_gossip", "count of outgoing messages with finality signature gossiper payload", )?; - let out_count_address_gossip = IntCounter::new( + let out_count_address_gossip = registry.new_int_counter( "net_out_count_address_gossip", "count of outgoing messages with address gossiper payload", )?; - let out_count_deploy_transfer = IntCounter::new( + let out_count_deploy_transfer = registry.new_int_counter( "net_out_count_deploy_transfer", "count of outgoing messages with deploy request/response payload", )?; - let out_count_block_transfer = IntCounter::new( + let out_count_block_transfer = registry.new_int_counter( "net_out_count_block_transfer", "count of outgoing messages with block request/response payload", )?; - let out_count_trie_transfer = IntCounter::new( + let out_count_trie_transfer = registry.new_int_counter( "net_out_count_trie_transfer", "count of outgoing messages with trie payloads", )?; - let out_count_other = IntCounter::new( + let out_count_other = registry.new_int_counter( "net_out_count_other", "count of outgoing messages with other payload", )?; - let out_bytes_protocol = IntCounter::new( + let out_bytes_protocol = registry.new_int_counter( "net_out_bytes_protocol", "volume in bytes of outgoing messages that are protocol overhead", )?; - let out_bytes_consensus = IntCounter::new( + let out_bytes_consensus = registry.new_int_counter( "net_out_bytes_consensus", "volume in bytes of outgoing messages with consensus payload", )?; - let out_bytes_deploy_gossip = IntCounter::new( + let out_bytes_deploy_gossip = registry.new_int_counter( "net_out_bytes_deploy_gossip", "volume in bytes of outgoing messages with deploy gossiper payload", )?; - let out_bytes_block_gossip = IntCounter::new( + let out_bytes_block_gossip = registry.new_int_counter( "net_out_bytes_block_gossip", "volume in bytes of outgoing messages with block gossiper payload", )?; - let out_bytes_finality_signature_gossip = IntCounter::new( + let out_bytes_finality_signature_gossip = registry.new_int_counter( "net_out_bytes_finality_signature_gossip", "volume in bytes of outgoing messages with finality signature gossiper payload", )?; - let out_bytes_address_gossip = IntCounter::new( + let out_bytes_address_gossip = registry.new_int_counter( "net_out_bytes_address_gossip", "volume in bytes of outgoing messages with address gossiper payload", )?; - let out_bytes_deploy_transfer = IntCounter::new( + let out_bytes_deploy_transfer = registry.new_int_counter( "net_out_bytes_deploy_transfer", "volume in bytes of outgoing messages with deploy request/response payload", )?; - let out_bytes_block_transfer = IntCounter::new( + let out_bytes_block_transfer = registry.new_int_counter( "net_out_bytes_block_transfer", "volume in bytes of outgoing messages with block request/response payload", )?; - let out_bytes_trie_transfer = IntCounter::new( + let out_bytes_trie_transfer = registry.new_int_counter( "net_out_bytes_trie_transfer", "volume in bytes of outgoing messages with trie payloads", )?; - let out_bytes_other = IntCounter::new( + let out_bytes_other = registry.new_int_counter( "net_out_bytes_other", "volume in bytes of outgoing messages with other payload", )?; - let out_state_connecting = IntGauge::new( + let out_state_connecting = registry.new_int_gauge( "out_state_connecting", "number of connections in the connecting state", )?; - let out_state_waiting = IntGauge::new( + let out_state_waiting = registry.new_int_gauge( "out_state_waiting", "number of connections in the waiting state", )?; - let out_state_connected = IntGauge::new( + let out_state_connected = registry.new_int_gauge( "out_state_connected", "number of connections in the connected state", )?; - let out_state_blocked = IntGauge::new( + let out_state_blocked = registry.new_int_gauge( "out_state_blocked", "number of connections in the blocked state", )?; - let out_state_loopback = IntGauge::new( + let out_state_loopback = registry.new_int_gauge( "out_state_loopback", "number of connections in the loopback state", )?; - let in_count_protocol = IntCounter::new( + let in_count_protocol = registry.new_int_counter( "net_in_count_protocol", "count of incoming messages that are protocol overhead", )?; - let in_count_consensus = IntCounter::new( + let in_count_consensus = registry.new_int_counter( "net_in_count_consensus", "count of incoming messages with consensus payload", )?; - let in_count_deploy_gossip = IntCounter::new( + let in_count_deploy_gossip = registry.new_int_counter( "net_in_count_deploy_gossip", "count of incoming messages with deploy gossiper payload", )?; - let in_count_block_gossip = IntCounter::new( + let in_count_block_gossip = registry.new_int_counter( "net_in_count_block_gossip", "count of incoming messages with block gossiper payload", )?; - let in_count_finality_signature_gossip = IntCounter::new( + let in_count_finality_signature_gossip = registry.new_int_counter( "net_in_count_finality_signature_gossip", "count of incoming messages with finality signature gossiper payload", )?; - let in_count_address_gossip = IntCounter::new( + let in_count_address_gossip = registry.new_int_counter( "net_in_count_address_gossip", "count of incoming messages with address gossiper payload", )?; - let in_count_deploy_transfer = IntCounter::new( + let in_count_deploy_transfer = registry.new_int_counter( "net_in_count_deploy_transfer", "count of incoming messages with deploy request/response payload", )?; - let in_count_block_transfer = IntCounter::new( + let in_count_block_transfer = registry.new_int_counter( "net_in_count_block_transfer", "count of incoming messages with block request/response payload", )?; - let in_count_trie_transfer = IntCounter::new( + let in_count_trie_transfer = registry.new_int_counter( "net_in_count_trie_transfer", "count of incoming messages with trie payloads", )?; - let in_count_other = IntCounter::new( + let in_count_other = registry.new_int_counter( "net_in_count_other", "count of incoming messages with other payload", )?; - let in_bytes_protocol = IntCounter::new( + let in_bytes_protocol = registry.new_int_counter( "net_in_bytes_protocol", "volume in bytes of incoming messages that are protocol overhead", )?; - let in_bytes_consensus = IntCounter::new( + let in_bytes_consensus = registry.new_int_counter( "net_in_bytes_consensus", "volume in bytes of incoming messages with consensus payload", )?; - let in_bytes_deploy_gossip = IntCounter::new( + let in_bytes_deploy_gossip = registry.new_int_counter( "net_in_bytes_deploy_gossip", "volume in bytes of incoming messages with deploy gossiper payload", )?; - let in_bytes_block_gossip = IntCounter::new( + let in_bytes_block_gossip = registry.new_int_counter( "net_in_bytes_block_gossip", "volume in bytes of incoming messages with block gossiper payload", )?; - let in_bytes_finality_signature_gossip = IntCounter::new( + let in_bytes_finality_signature_gossip = registry.new_int_counter( "net_in_bytes_finality_signature_gossip", "volume in bytes of incoming messages with finality signature gossiper payload", )?; - let in_bytes_address_gossip = IntCounter::new( + let in_bytes_address_gossip = registry.new_int_counter( "net_in_bytes_address_gossip", "volume in bytes of incoming messages with address gossiper payload", )?; - let in_bytes_deploy_transfer = IntCounter::new( + let in_bytes_deploy_transfer = registry.new_int_counter( "net_in_bytes_deploy_transfer", "volume in bytes of incoming messages with deploy request/response payload", )?; - let in_bytes_block_transfer = IntCounter::new( + let in_bytes_block_transfer = registry.new_int_counter( "net_in_bytes_block_transfer", "volume in bytes of incoming messages with block request/response payload", )?; - let in_bytes_trie_transfer = IntCounter::new( + let in_bytes_trie_transfer = registry.new_int_counter( "net_in_bytes_trie_transfer", "volume in bytes of incoming messages with trie payloads", )?; - let in_bytes_other = IntCounter::new( + let in_bytes_other = registry.new_int_counter( "net_in_bytes_other", "volume in bytes of incoming messages with other payload", )?; - let requests_for_trie_accepted = IntCounter::new( + let requests_for_trie_accepted = registry.new_int_counter( "requests_for_trie_accepted", "number of trie requests accepted for processing", )?; - let requests_for_trie_finished = IntCounter::new( + let requests_for_trie_finished = registry.new_int_counter( "requests_for_trie_finished", "number of trie requests finished, successful or not", )?; - let accumulated_outgoing_limiter_delay = Counter::new( + let accumulated_outgoing_limiter_delay = registry.new_counter( "accumulated_outgoing_limiter_delay", "seconds spent delaying outgoing traffic to non-validators due to limiter, in seconds", )?; - let accumulated_incoming_limiter_delay = Counter::new( + let accumulated_incoming_limiter_delay = registry.new_counter( "accumulated_incoming_limiter_delay", "seconds spent delaying incoming traffic from non-validators due to limiter, in seconds." )?; - registry.register(Box::new(queued_messages.clone()))?; - registry.register(Box::new(peers.clone()))?; - - registry.register(Box::new(out_count_protocol.clone()))?; - registry.register(Box::new(out_count_consensus.clone()))?; - registry.register(Box::new(out_count_deploy_gossip.clone()))?; - registry.register(Box::new(out_count_block_gossip.clone()))?; - registry.register(Box::new(out_count_finality_signature_gossip.clone()))?; - registry.register(Box::new(out_count_address_gossip.clone()))?; - registry.register(Box::new(out_count_deploy_transfer.clone()))?; - registry.register(Box::new(out_count_block_transfer.clone()))?; - registry.register(Box::new(out_count_trie_transfer.clone()))?; - registry.register(Box::new(out_count_other.clone()))?; - - registry.register(Box::new(out_bytes_protocol.clone()))?; - registry.register(Box::new(out_bytes_consensus.clone()))?; - registry.register(Box::new(out_bytes_deploy_gossip.clone()))?; - registry.register(Box::new(out_bytes_block_gossip.clone()))?; - registry.register(Box::new(out_bytes_finality_signature_gossip.clone()))?; - registry.register(Box::new(out_bytes_address_gossip.clone()))?; - registry.register(Box::new(out_bytes_deploy_transfer.clone()))?; - registry.register(Box::new(out_bytes_block_transfer.clone()))?; - registry.register(Box::new(out_bytes_trie_transfer.clone()))?; - registry.register(Box::new(out_bytes_other.clone()))?; - - registry.register(Box::new(out_state_connecting.clone()))?; - registry.register(Box::new(out_state_waiting.clone()))?; - registry.register(Box::new(out_state_connected.clone()))?; - registry.register(Box::new(out_state_blocked.clone()))?; - registry.register(Box::new(out_state_loopback.clone()))?; - - registry.register(Box::new(in_count_protocol.clone()))?; - registry.register(Box::new(in_count_consensus.clone()))?; - registry.register(Box::new(in_count_deploy_gossip.clone()))?; - registry.register(Box::new(in_count_block_gossip.clone()))?; - registry.register(Box::new(in_count_finality_signature_gossip.clone()))?; - registry.register(Box::new(in_count_address_gossip.clone()))?; - registry.register(Box::new(in_count_deploy_transfer.clone()))?; - registry.register(Box::new(in_count_block_transfer.clone()))?; - registry.register(Box::new(in_count_trie_transfer.clone()))?; - registry.register(Box::new(in_count_other.clone()))?; - - registry.register(Box::new(in_bytes_protocol.clone()))?; - registry.register(Box::new(in_bytes_consensus.clone()))?; - registry.register(Box::new(in_bytes_deploy_gossip.clone()))?; - registry.register(Box::new(in_bytes_block_gossip.clone()))?; - registry.register(Box::new(in_bytes_finality_signature_gossip.clone()))?; - registry.register(Box::new(in_bytes_address_gossip.clone()))?; - registry.register(Box::new(in_bytes_deploy_transfer.clone()))?; - registry.register(Box::new(in_bytes_block_transfer.clone()))?; - registry.register(Box::new(in_bytes_trie_transfer.clone()))?; - registry.register(Box::new(in_bytes_other.clone()))?; - - registry.register(Box::new(requests_for_trie_accepted.clone()))?; - registry.register(Box::new(requests_for_trie_finished.clone()))?; - - registry.register(Box::new(accumulated_outgoing_limiter_delay.clone()))?; - registry.register(Box::new(accumulated_incoming_limiter_delay.clone()))?; - Ok(Metrics { - broadcast_requests: registry - .new_int_counter("net_broadcast_requests", "number of broadcasting requests")?, - direct_message_requests: registry.new_int_counter( - "net_direct_message_requests", - "number of requests to send a message directly to a peer", - )?, + broadcast_requests, + direct_message_requests, queued_messages, peers, out_count_protocol, @@ -451,7 +395,6 @@ impl Metrics { requests_for_trie_finished, accumulated_outgoing_limiter_delay, accumulated_incoming_limiter_delay, - registry: registry.clone(), }) } @@ -561,11 +504,11 @@ impl Metrics { /// Creates a set of outgoing metrics that is connected to this set of metrics. pub(super) fn create_outgoing_metrics(&self) -> OutgoingMetrics { OutgoingMetrics { - out_state_connecting: self.out_state_connecting.clone(), - out_state_waiting: self.out_state_waiting.clone(), - out_state_connected: self.out_state_connected.clone(), - out_state_blocked: self.out_state_blocked.clone(), - out_state_loopback: self.out_state_loopback.clone(), + out_state_connecting: self.out_state_connecting.inner().clone(), + out_state_waiting: self.out_state_waiting.inner().clone(), + out_state_connected: self.out_state_connected.inner().clone(), + out_state_blocked: self.out_state_blocked.inner().clone(), + out_state_loopback: self.out_state_loopback.inner().clone(), } } @@ -590,66 +533,3 @@ impl Metrics { } } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.queued_messages); - unregister_metric!(self.registry, self.peers); - - unregister_metric!(self.registry, self.out_count_protocol); - unregister_metric!(self.registry, self.out_count_consensus); - unregister_metric!(self.registry, self.out_count_deploy_gossip); - unregister_metric!(self.registry, self.out_count_block_gossip); - unregister_metric!(self.registry, self.out_count_finality_signature_gossip); - unregister_metric!(self.registry, self.out_count_address_gossip); - unregister_metric!(self.registry, self.out_count_deploy_transfer); - unregister_metric!(self.registry, self.out_count_block_transfer); - unregister_metric!(self.registry, self.out_count_trie_transfer); - unregister_metric!(self.registry, self.out_count_other); - - unregister_metric!(self.registry, self.out_bytes_protocol); - unregister_metric!(self.registry, self.out_bytes_consensus); - unregister_metric!(self.registry, self.out_bytes_deploy_gossip); - unregister_metric!(self.registry, self.out_bytes_block_gossip); - unregister_metric!(self.registry, self.out_bytes_finality_signature_gossip); - unregister_metric!(self.registry, self.out_bytes_address_gossip); - unregister_metric!(self.registry, self.out_bytes_deploy_transfer); - unregister_metric!(self.registry, self.out_bytes_block_transfer); - unregister_metric!(self.registry, self.out_bytes_trie_transfer); - unregister_metric!(self.registry, self.out_bytes_other); - - unregister_metric!(self.registry, self.out_state_connecting); - unregister_metric!(self.registry, self.out_state_waiting); - unregister_metric!(self.registry, self.out_state_connected); - unregister_metric!(self.registry, self.out_state_blocked); - unregister_metric!(self.registry, self.out_state_loopback); - - unregister_metric!(self.registry, self.in_count_protocol); - unregister_metric!(self.registry, self.in_count_consensus); - unregister_metric!(self.registry, self.in_count_deploy_gossip); - unregister_metric!(self.registry, self.in_count_block_gossip); - unregister_metric!(self.registry, self.in_count_finality_signature_gossip); - unregister_metric!(self.registry, self.in_count_address_gossip); - unregister_metric!(self.registry, self.in_count_deploy_transfer); - unregister_metric!(self.registry, self.in_count_block_transfer); - unregister_metric!(self.registry, self.in_count_trie_transfer); - unregister_metric!(self.registry, self.in_count_other); - - unregister_metric!(self.registry, self.in_bytes_protocol); - unregister_metric!(self.registry, self.in_bytes_consensus); - unregister_metric!(self.registry, self.in_bytes_deploy_gossip); - unregister_metric!(self.registry, self.in_bytes_block_gossip); - unregister_metric!(self.registry, self.in_bytes_finality_signature_gossip); - unregister_metric!(self.registry, self.in_bytes_address_gossip); - unregister_metric!(self.registry, self.in_bytes_deploy_transfer); - unregister_metric!(self.registry, self.in_bytes_block_transfer); - unregister_metric!(self.registry, self.in_bytes_trie_transfer); - unregister_metric!(self.registry, self.in_bytes_other); - - unregister_metric!(self.registry, self.requests_for_trie_accepted); - unregister_metric!(self.registry, self.requests_for_trie_finished); - - unregister_metric!(self.registry, self.accumulated_outgoing_limiter_delay); - unregister_metric!(self.registry, self.accumulated_incoming_limiter_delay); - } -} diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index e78b69f1a0..a944db6fb9 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -1,8 +1,8 @@ //! Self registereing and deregistering metrics support. use prometheus::{ - core::{Atomic, Collector, GenericCounter}, - IntCounter, IntGauge, Registry, + core::{Atomic, Collector, GenericCounter, GenericGauge}, + Counter, IntCounter, IntGauge, Registry, }; /// A metric wrapper that will deregister the metric from a given registry on drop. @@ -33,9 +33,9 @@ where }) } - /// Returns a reference to the inner metric. + /// Returns a reference to the wrapped metric. #[inline] - fn inner(&self) -> &T { + pub(crate) fn inner(&self) -> &T { self.metric.as_ref().expect("metric disappeared") } } @@ -44,11 +44,46 @@ impl

RegisteredMetric> where P: Atomic, { - /// Increment the counter. + /// Increments the counter. #[inline] pub(crate) fn inc(&self) { self.inner().inc() } + + /// Increments the counter by set amount. + #[inline] + pub(crate) fn inc_by(&self, v: P::T) { + self.inner().inc_by(v) + } +} + +impl

RegisteredMetric> +where + P: Atomic, +{ + /// Adds the given amount to gauge. + #[inline] + pub(crate) fn add(&self, v: P::T) { + self.inner().add(v) + } + + /// Returns the gauge value. + #[inline] + pub(crate) fn get(&self) -> P::T { + self.inner().get() + } + + /// Increments the gauge. + #[inline] + pub(crate) fn inc(&self) { + self.inner().inc() + } + + /// Sets the gauge value. + #[inline] + pub(crate) fn set(&self, v: P::T) { + self.inner().set(v) + } } impl Drop for RegisteredMetric @@ -72,6 +107,13 @@ where /// Extension trait for [`Registry`] instances. pub(crate) trait RegistryExt { + /// Creates a new [`IntCounter`] registered to this registry. + fn new_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error>; + /// Creates a new [`IntCounter`] registered to this registry. fn new_int_counter, S2: Into>( &self, @@ -88,6 +130,13 @@ pub(crate) trait RegistryExt { } impl RegistryExt for Registry { + fn new_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), Counter::new(name, help)?) + } fn new_int_counter, S2: Into>( &self, name: S1, From 624f60c6d8d49daae71175d9c91719ae73298598 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 18:15:22 +0200 Subject: [PATCH 352/735] Finish converting metrics up to (but including) first instance of `Histogram` --- .../components/block_accumulator/metrics.rs | 22 ++++---------- .../components/block_synchronizer/metrics.rs | 21 ++++---------- node/src/utils/registered_metric.rs | 29 ++++++++++++++++++- 3 files changed, 38 insertions(+), 34 deletions(-) diff --git a/node/src/components/block_accumulator/metrics.rs b/node/src/components/block_accumulator/metrics.rs index 5e44639b02..e0e3661bc0 100644 --- a/node/src/components/block_accumulator/metrics.rs +++ b/node/src/components/block_accumulator/metrics.rs @@ -1,44 +1,32 @@ use prometheus::{IntGauge, Registry}; -use crate::unregister_metric; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; /// Metrics for the block accumulator component. #[derive(Debug)] pub(super) struct Metrics { /// Total number of BlockAcceptors contained in the BlockAccumulator. - pub(super) block_acceptors: IntGauge, + pub(super) block_acceptors: RegisteredMetric, /// Number of child block hashes that we know of and that will be used in order to request next /// blocks. - pub(super) known_child_blocks: IntGauge, - registry: Registry, + pub(super) known_child_blocks: RegisteredMetric, } impl Metrics { /// Creates a new instance of the block accumulator metrics, using the given prefix. pub fn new(registry: &Registry) -> Result { - let block_acceptors = IntGauge::new( + let block_acceptors = registry.new_int_gauge( "block_accumulator_block_acceptors".to_string(), "number of block acceptors in the Block Accumulator".to_string(), )?; - let known_child_blocks = IntGauge::new( + let known_child_blocks = registry.new_int_gauge( "block_accumulator_known_child_blocks".to_string(), "number of blocks received by the Block Accumulator for which we know the hash of the child block".to_string(), )?; - registry.register(Box::new(block_acceptors.clone()))?; - registry.register(Box::new(known_child_blocks.clone()))?; - Ok(Metrics { block_acceptors, known_child_blocks, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.block_acceptors); - unregister_metric!(self.registry, self.known_child_blocks); - } -} diff --git a/node/src/components/block_synchronizer/metrics.rs b/node/src/components/block_synchronizer/metrics.rs index 541fa5f09c..786e731c8a 100644 --- a/node/src/components/block_synchronizer/metrics.rs +++ b/node/src/components/block_synchronizer/metrics.rs @@ -1,6 +1,6 @@ use prometheus::{Histogram, Registry}; -use crate::{unregister_metric, utils}; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; const HIST_SYNC_DURATION_NAME: &str = "historical_block_sync_duration_seconds"; const HIST_SYNC_DURATION_HELP: &str = "duration (in sec) to synchronize a historical block"; @@ -17,10 +17,9 @@ const EXPONENTIAL_BUCKET_COUNT: usize = 10; #[derive(Debug)] pub(super) struct Metrics { /// Time duration for the historical synchronizer to get a block. - pub(super) historical_block_sync_duration: Histogram, + pub(super) historical_block_sync_duration: RegisteredMetric, /// Time duration for the forward synchronizer to get a block. - pub(super) forward_block_sync_duration: Histogram, - registry: Registry, + pub(super) forward_block_sync_duration: RegisteredMetric, } impl Metrics { @@ -33,26 +32,16 @@ impl Metrics { )?; Ok(Metrics { - historical_block_sync_duration: utils::register_histogram_metric( - registry, + historical_block_sync_duration: registry.new_histogram( HIST_SYNC_DURATION_NAME, HIST_SYNC_DURATION_HELP, buckets.clone(), )?, - forward_block_sync_duration: utils::register_histogram_metric( - registry, + forward_block_sync_duration: registry.new_histogram( FWD_SYNC_DURATION_NAME, FWD_SYNC_DURATION_HELP, buckets, )?, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.historical_block_sync_duration); - unregister_metric!(self.registry, self.forward_block_sync_duration); - } -} diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index a944db6fb9..7d2fed36ff 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -2,7 +2,7 @@ use prometheus::{ core::{Atomic, Collector, GenericCounter, GenericGauge}, - Counter, IntCounter, IntGauge, Registry, + Counter, Histogram, HistogramOpts, IntCounter, IntGauge, Registry, }; /// A metric wrapper that will deregister the metric from a given registry on drop. @@ -86,6 +86,14 @@ where } } +impl RegisteredMetric { + /// Observes a given value. + #[inline] + pub(crate) fn observe(&self, v: f64) { + self.inner().observe(v) + } +} + impl Drop for RegisteredMetric where T: Collector + 'static, @@ -127,6 +135,14 @@ pub(crate) trait RegistryExt { name: S1, help: S2, ) -> Result, prometheus::Error>; + + /// Creates a new [`Histogram`] registered to this registry. + fn new_histogram, S2: Into>( + &self, + name: S1, + help: S2, + buckets: Vec, + ) -> Result, prometheus::Error>; } impl RegistryExt for Registry { @@ -152,4 +168,15 @@ impl RegistryExt for Registry { ) -> Result, prometheus::Error> { RegisteredMetric::new(self.clone(), IntGauge::new(name, help)?) } + + fn new_histogram, S2: Into>( + &self, + name: S1, + help: S2, + buckets: Vec, + ) -> Result, prometheus::Error> { + let histogram_opts = HistogramOpts::new(name, help).buckets(buckets); + + RegisteredMetric::new(self.clone(), Histogram::with_opts(histogram_opts)?) + } } From e1e6829191473f54d179f2a3830a4fd9ba8c2997 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 19:17:30 +0200 Subject: [PATCH 353/735] Convert enough of remaining metrics to use `RegisteredMetric` do be able to remove `register_histogram_metric` --- node/src/components/consensus/metrics.rs | 44 +++----- .../components/contract_runtime/metrics.rs | 100 +++++------------- .../src/components/deploy_acceptor/metrics.rs | 21 +--- node/src/components/deploy_buffer/metrics.rs | 28 ++--- node/src/components/fetcher/metrics.rs | 34 ++---- node/src/components/gossiper/metrics.rs | 41 ++----- node/src/components/storage/metrics.rs | 28 ++--- node/src/components/sync_leaper/metrics.rs | 35 ++---- node/src/utils.rs | 13 --- node/src/utils/registered_metric.rs | 61 +++++++---- 10 files changed, 130 insertions(+), 275 deletions(-) diff --git a/node/src/components/consensus/metrics.rs b/node/src/components/consensus/metrics.rs index 0409ee4eca..5bf1d411b7 100644 --- a/node/src/components/consensus/metrics.rs +++ b/node/src/components/consensus/metrics.rs @@ -2,55 +2,51 @@ use prometheus::{Gauge, IntGauge, Registry}; use casper_types::Timestamp; -use crate::{types::FinalizedBlock, unregister_metric}; +use crate::{ + types::FinalizedBlock, + utils::registered_metric::{RegisteredMetric, RegistryExt}, +}; /// Network metrics to track Consensus #[derive(Debug)] pub(super) struct Metrics { /// Gauge to track time between proposal and finalization. - finalization_time: Gauge, + finalization_time: RegisteredMetric, /// Amount of finalized blocks. - finalized_block_count: IntGauge, + finalized_block_count: RegisteredMetric, /// Timestamp of the most recently accepted block payload. - time_of_last_proposed_block: IntGauge, + time_of_last_proposed_block: RegisteredMetric, /// Timestamp of the most recently finalized block. - time_of_last_finalized_block: IntGauge, + time_of_last_finalized_block: RegisteredMetric, /// The current era. - pub(super) consensus_current_era: IntGauge, - /// Registry component. - registry: Registry, + pub(super) consensus_current_era: RegisteredMetric, } impl Metrics { pub(super) fn new(registry: &Registry) -> Result { - let finalization_time = Gauge::new( + let finalization_time = registry.new_gauge( "finalization_time", "the amount of time, in milliseconds, between proposal and finalization of the latest finalized block", )?; let finalized_block_count = - IntGauge::new("amount_of_blocks", "the number of blocks finalized so far")?; - let time_of_last_proposed_block = IntGauge::new( + registry.new_int_gauge("amount_of_blocks", "the number of blocks finalized so far")?; + let time_of_last_proposed_block = registry.new_int_gauge( "time_of_last_block_payload", "timestamp of the most recently accepted block payload", )?; - let time_of_last_finalized_block = IntGauge::new( + let time_of_last_finalized_block = registry.new_int_gauge( "time_of_last_finalized_block", "timestamp of the most recently finalized block", )?; let consensus_current_era = - IntGauge::new("consensus_current_era", "the current era in consensus")?; - registry.register(Box::new(finalization_time.clone()))?; - registry.register(Box::new(finalized_block_count.clone()))?; - registry.register(Box::new(consensus_current_era.clone()))?; - registry.register(Box::new(time_of_last_proposed_block.clone()))?; - registry.register(Box::new(time_of_last_finalized_block.clone()))?; + registry.new_int_gauge("consensus_current_era", "the current era in consensus")?; + Ok(Metrics { finalization_time, finalized_block_count, time_of_last_proposed_block, time_of_last_finalized_block, consensus_current_era, - registry: registry.clone(), }) } @@ -70,13 +66,3 @@ impl Metrics { .set(Timestamp::now().millis() as i64); } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.finalization_time); - unregister_metric!(self.registry, self.finalized_block_count); - unregister_metric!(self.registry, self.consensus_current_era); - unregister_metric!(self.registry, self.time_of_last_finalized_block); - unregister_metric!(self.registry, self.time_of_last_proposed_block); - } -} diff --git a/node/src/components/contract_runtime/metrics.rs b/node/src/components/contract_runtime/metrics.rs index a7833e72fd..7160125b75 100644 --- a/node/src/components/contract_runtime/metrics.rs +++ b/node/src/components/contract_runtime/metrics.rs @@ -1,6 +1,6 @@ use prometheus::{self, Gauge, Histogram, IntGauge, Registry}; -use crate::{unregister_metric, utils}; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; /// Value of upper bound of histogram. const EXPONENTIAL_BUCKET_START: f64 = 0.01; @@ -58,20 +58,19 @@ const EXEC_QUEUE_SIZE_HELP: &str = /// Metrics for the contract runtime component. #[derive(Debug)] pub struct Metrics { - pub(super) run_execute: Histogram, - pub(super) apply_effect: Histogram, - pub(super) commit_upgrade: Histogram, - pub(super) run_query: Histogram, - pub(super) commit_step: Histogram, - pub(super) get_balance: Histogram, - pub(super) get_era_validators: Histogram, - pub(super) get_bids: Histogram, - pub(super) put_trie: Histogram, - pub(super) get_trie: Histogram, - pub(super) exec_block: Histogram, - pub(super) latest_commit_step: Gauge, - pub(super) exec_queue_size: IntGauge, - registry: Registry, + pub(super) run_execute: RegisteredMetric, + pub(super) apply_effect: RegisteredMetric, + pub(super) commit_upgrade: RegisteredMetric, + pub(super) run_query: RegisteredMetric, + pub(super) commit_step: RegisteredMetric, + pub(super) get_balance: RegisteredMetric, + pub(super) get_era_validators: RegisteredMetric, + pub(super) get_bids: RegisteredMetric, + pub(super) put_trie: RegisteredMetric, + pub(super) get_trie: RegisteredMetric, + pub(super) exec_block: RegisteredMetric, + pub(super) latest_commit_step: RegisteredMetric, + pub(super) exec_queue_size: RegisteredMetric, } impl Metrics { @@ -89,100 +88,57 @@ impl Metrics { // Anything above that should be a warning signal. let tiny_buckets = prometheus::exponential_buckets(0.001, 2.0, 10)?; - let latest_commit_step = Gauge::new(LATEST_COMMIT_STEP_NAME, LATEST_COMMIT_STEP_HELP)?; - registry.register(Box::new(latest_commit_step.clone()))?; + let latest_commit_step = + registry.new_gauge(LATEST_COMMIT_STEP_NAME, LATEST_COMMIT_STEP_HELP)?; - let exec_queue_size = IntGauge::new(EXEC_QUEUE_SIZE_NAME, EXEC_QUEUE_SIZE_HELP)?; - registry.register(Box::new(exec_queue_size.clone()))?; + let exec_queue_size = registry.new_int_gauge(EXEC_QUEUE_SIZE_NAME, EXEC_QUEUE_SIZE_HELP)?; Ok(Metrics { - run_execute: utils::register_histogram_metric( - registry, + run_execute: registry.new_histogram( RUN_EXECUTE_NAME, RUN_EXECUTE_HELP, common_buckets.clone(), )?, - apply_effect: utils::register_histogram_metric( - registry, + apply_effect: registry.new_histogram( APPLY_EFFECT_NAME, APPLY_EFFECT_HELP, common_buckets.clone(), )?, - run_query: utils::register_histogram_metric( - registry, + run_query: registry.new_histogram( RUN_QUERY_NAME, RUN_QUERY_HELP, common_buckets.clone(), )?, - commit_step: utils::register_histogram_metric( - registry, + commit_step: registry.new_histogram( COMMIT_STEP_NAME, COMMIT_STEP_HELP, common_buckets.clone(), )?, - commit_upgrade: utils::register_histogram_metric( - registry, + commit_upgrade: registry.new_histogram( COMMIT_UPGRADE_NAME, COMMIT_UPGRADE_HELP, common_buckets.clone(), )?, - get_balance: utils::register_histogram_metric( - registry, + get_balance: registry.new_histogram( GET_BALANCE_NAME, GET_BALANCE_HELP, common_buckets.clone(), )?, - get_era_validators: utils::register_histogram_metric( - registry, + get_era_validators: registry.new_histogram( GET_ERA_VALIDATORS_NAME, GET_ERA_VALIDATORS_HELP, common_buckets.clone(), )?, - get_bids: utils::register_histogram_metric( - registry, + get_bids: registry.new_histogram( GET_BIDS_NAME, GET_BIDS_HELP, common_buckets.clone(), )?, - get_trie: utils::register_histogram_metric( - registry, - GET_TRIE_NAME, - GET_TRIE_HELP, - tiny_buckets.clone(), - )?, - put_trie: utils::register_histogram_metric( - registry, - PUT_TRIE_NAME, - PUT_TRIE_HELP, - tiny_buckets, - )?, - exec_block: utils::register_histogram_metric( - registry, - EXEC_BLOCK_NAME, - EXEC_BLOCK_HELP, - common_buckets, - )?, + get_trie: registry.new_histogram(GET_TRIE_NAME, GET_TRIE_HELP, tiny_buckets.clone())?, + put_trie: registry.new_histogram(PUT_TRIE_NAME, PUT_TRIE_HELP, tiny_buckets)?, + exec_block: registry.new_histogram(EXEC_BLOCK_NAME, EXEC_BLOCK_HELP, common_buckets)?, latest_commit_step, exec_queue_size, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.run_execute); - unregister_metric!(self.registry, self.apply_effect); - unregister_metric!(self.registry, self.commit_upgrade); - unregister_metric!(self.registry, self.run_query); - unregister_metric!(self.registry, self.commit_step); - unregister_metric!(self.registry, self.get_balance); - unregister_metric!(self.registry, self.get_era_validators); - unregister_metric!(self.registry, self.get_bids); - unregister_metric!(self.registry, self.put_trie); - unregister_metric!(self.registry, self.get_trie); - unregister_metric!(self.registry, self.exec_block); - unregister_metric!(self.registry, self.latest_commit_step); - unregister_metric!(self.registry, self.exec_queue_size); - } -} diff --git a/node/src/components/deploy_acceptor/metrics.rs b/node/src/components/deploy_acceptor/metrics.rs index 444bd41ee3..d48b5f685b 100644 --- a/node/src/components/deploy_acceptor/metrics.rs +++ b/node/src/components/deploy_acceptor/metrics.rs @@ -2,7 +2,7 @@ use prometheus::{Histogram, Registry}; use casper_types::Timestamp; -use crate::{unregister_metric, utils}; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; const DEPLOY_ACCEPTED_NAME: &str = "deploy_acceptor_accepted_deploy"; const DEPLOY_ACCEPTED_HELP: &str = "time in seconds to accept a deploy in the deploy acceptor"; @@ -20,9 +20,8 @@ const EXPONENTIAL_BUCKET_COUNT: usize = 10; #[derive(Debug)] pub(super) struct Metrics { - deploy_accepted: Histogram, - deploy_rejected: Histogram, - registry: Registry, + deploy_accepted: RegisteredMetric, + deploy_rejected: RegisteredMetric, } impl Metrics { @@ -34,19 +33,16 @@ impl Metrics { )?; Ok(Self { - deploy_accepted: utils::register_histogram_metric( - registry, + deploy_accepted: registry.new_histogram( DEPLOY_ACCEPTED_NAME, DEPLOY_ACCEPTED_HELP, common_buckets.clone(), )?, - deploy_rejected: utils::register_histogram_metric( - registry, + deploy_rejected: registry.new_histogram( DEPLOY_REJECTED_NAME, DEPLOY_REJECTED_HELP, common_buckets, )?, - registry: registry.clone(), }) } @@ -60,10 +56,3 @@ impl Metrics { .observe(start.elapsed().millis() as f64); } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.deploy_accepted); - unregister_metric!(self.registry, self.deploy_rejected); - } -} diff --git a/node/src/components/deploy_buffer/metrics.rs b/node/src/components/deploy_buffer/metrics.rs index df2e292b01..811324ba9b 100644 --- a/node/src/components/deploy_buffer/metrics.rs +++ b/node/src/components/deploy_buffer/metrics.rs @@ -1,52 +1,38 @@ use prometheus::{IntGauge, Registry}; -use crate::unregister_metric; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; /// Metrics for the deploy_buffer component. #[derive(Debug)] pub(super) struct Metrics { /// Total number of deploys contained in the deploy buffer. - pub(super) total_deploys: IntGauge, + pub(super) total_deploys: RegisteredMetric, /// Number of deploys contained in in-flight proposed blocks. - pub(super) held_deploys: IntGauge, + pub(super) held_deploys: RegisteredMetric, /// Number of deploys that should not be included in future proposals ever again. - pub(super) dead_deploys: IntGauge, - registry: Registry, + pub(super) dead_deploys: RegisteredMetric, } impl Metrics { /// Creates a new instance of the block accumulator metrics, using the given prefix. pub fn new(registry: &Registry) -> Result { - let total_deploys = IntGauge::new( + let total_deploys = registry.new_int_gauge( "deploy_buffer_total_deploys".to_string(), "total number of deploys contained in the deploy buffer.".to_string(), )?; - let held_deploys = IntGauge::new( + let held_deploys = registry.new_int_gauge( "deploy_buffer_held_deploys".to_string(), "number of deploys included in in-flight proposed blocks.".to_string(), )?; - let dead_deploys = IntGauge::new( + let dead_deploys = registry.new_int_gauge( "deploy_buffer_dead_deploys".to_string(), "number of deploys that should not be included in future proposals.".to_string(), )?; - registry.register(Box::new(total_deploys.clone()))?; - registry.register(Box::new(held_deploys.clone()))?; - registry.register(Box::new(dead_deploys.clone()))?; - Ok(Metrics { total_deploys, held_deploys, dead_deploys, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.total_deploys); - unregister_metric!(self.registry, self.held_deploys); - unregister_metric!(self.registry, self.dead_deploys); - } -} diff --git a/node/src/components/fetcher/metrics.rs b/node/src/components/fetcher/metrics.rs index 35c403d633..755e901355 100644 --- a/node/src/components/fetcher/metrics.rs +++ b/node/src/components/fetcher/metrics.rs @@ -1,62 +1,46 @@ use prometheus::{IntCounter, Registry}; -use crate::unregister_metric; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; #[derive(Debug)] pub(crate) struct Metrics { /// Number of fetch requests that found an item in the storage. - pub found_in_storage: IntCounter, + pub found_in_storage: RegisteredMetric, /// Number of fetch requests that fetched an item from peer. - pub found_on_peer: IntCounter, + pub found_on_peer: RegisteredMetric, /// Number of fetch requests that timed out. - pub timeouts: IntCounter, + pub timeouts: RegisteredMetric, /// Number of total fetch requests made. - pub fetch_total: IntCounter, - /// Reference to the registry for unregistering. - registry: Registry, + pub fetch_total: RegisteredMetric, } impl Metrics { pub(super) fn new(name: &str, registry: &Registry) -> Result { - let found_in_storage = IntCounter::new( + let found_in_storage = registry.new_int_counter( format!("{}_found_in_storage", name), format!( "number of fetch requests that found {} in local storage", name ), )?; - let found_on_peer = IntCounter::new( + let found_on_peer = registry.new_int_counter( format!("{}_found_on_peer", name), format!("number of fetch requests that fetched {} from peer", name), )?; - let timeouts = IntCounter::new( + let timeouts = registry.new_int_counter( format!("{}_timeouts", name), format!("number of {} fetch requests that timed out", name), )?; - let fetch_total = IntCounter::new( + let fetch_total = registry.new_int_counter( format!("{}_fetch_total", name), format!("number of {} all fetch requests made", name), )?; - registry.register(Box::new(found_in_storage.clone()))?; - registry.register(Box::new(found_on_peer.clone()))?; - registry.register(Box::new(timeouts.clone()))?; - registry.register(Box::new(fetch_total.clone()))?; Ok(Metrics { found_in_storage, found_on_peer, timeouts, fetch_total, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.found_in_storage); - unregister_metric!(self.registry, self.found_on_peer); - unregister_metric!(self.registry, self.timeouts); - unregister_metric!(self.registry, self.fetch_total); - } -} diff --git a/node/src/components/gossiper/metrics.rs b/node/src/components/gossiper/metrics.rs index 2bf9d2e900..90352a4cfb 100644 --- a/node/src/components/gossiper/metrics.rs +++ b/node/src/components/gossiper/metrics.rs @@ -1,50 +1,48 @@ use prometheus::{IntCounter, IntGauge, Registry}; -use crate::unregister_metric; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; /// Metrics for the gossiper component. #[derive(Debug)] pub(super) struct Metrics { /// Total number of items received by the gossiper. - pub(super) items_received: IntCounter, + pub(super) items_received: RegisteredMetric, /// Total number of gossip requests sent to peers. - pub(super) times_gossiped: IntCounter, + pub(super) times_gossiped: RegisteredMetric, /// Number of times the process had to pause due to running out of peers. - pub(super) times_ran_out_of_peers: IntCounter, + pub(super) times_ran_out_of_peers: RegisteredMetric, /// Number of items in the gossip table that are currently being gossiped. - pub(super) table_items_current: IntGauge, + pub(super) table_items_current: RegisteredMetric, /// Number of items in the gossip table that are finished. - pub(super) table_items_finished: IntGauge, - /// Reference to the registry for unregistering. - registry: Registry, + pub(super) table_items_finished: RegisteredMetric, } impl Metrics { /// Creates a new instance of gossiper metrics, using the given prefix. pub fn new(name: &str, registry: &Registry) -> Result { - let items_received = IntCounter::new( + let items_received = registry.new_int_counter( format!("{}_items_received", name), format!("number of items received by the {}", name), )?; - let times_gossiped = IntCounter::new( + let times_gossiped = registry.new_int_counter( format!("{}_times_gossiped", name), format!("number of times the {} sent gossip requests to peers", name), )?; - let times_ran_out_of_peers = IntCounter::new( + let times_ran_out_of_peers = registry.new_int_counter( format!("{}_times_ran_out_of_peers", name), format!( "number of times the {} ran out of peers and had to pause", name ), )?; - let table_items_current = IntGauge::new( + let table_items_current = registry.new_int_gauge( format!("{}_table_items_current", name), format!( "number of items in the gossip table of {} in state current", name ), )?; - let table_items_finished = IntGauge::new( + let table_items_finished = registry.new_int_gauge( format!("{}_table_items_finished", name), format!( "number of items in the gossip table of {} in state finished", @@ -52,29 +50,12 @@ impl Metrics { ), )?; - registry.register(Box::new(items_received.clone()))?; - registry.register(Box::new(times_gossiped.clone()))?; - registry.register(Box::new(times_ran_out_of_peers.clone()))?; - registry.register(Box::new(table_items_current.clone()))?; - registry.register(Box::new(table_items_finished.clone()))?; - Ok(Metrics { items_received, times_gossiped, times_ran_out_of_peers, table_items_current, table_items_finished, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.items_received); - unregister_metric!(self.registry, self.times_gossiped); - unregister_metric!(self.registry, self.times_ran_out_of_peers); - unregister_metric!(self.registry, self.table_items_current); - unregister_metric!(self.registry, self.table_items_finished); - } -} diff --git a/node/src/components/storage/metrics.rs b/node/src/components/storage/metrics.rs index b6ee022b65..4c0f7f816d 100644 --- a/node/src/components/storage/metrics.rs +++ b/node/src/components/storage/metrics.rs @@ -1,6 +1,6 @@ use prometheus::{self, IntGauge, Registry}; -use crate::unregister_metric; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; const CHAIN_HEIGHT_NAME: &str = "chain_height"; const CHAIN_HEIGHT_HELP: &str = "highest complete block (DEPRECATED)"; @@ -17,38 +17,24 @@ const LOWEST_AVAILABLE_BLOCK_HELP: &str = #[derive(Debug)] pub struct Metrics { // deprecated - replaced by `highest_available_block` - pub(super) chain_height: IntGauge, - pub(super) highest_available_block: IntGauge, - pub(super) lowest_available_block: IntGauge, - registry: Registry, + pub(super) chain_height: RegisteredMetric, + pub(super) highest_available_block: RegisteredMetric, + pub(super) lowest_available_block: RegisteredMetric, } impl Metrics { /// Constructor of metrics which creates and registers metrics objects for use. pub(super) fn new(registry: &Registry) -> Result { - let chain_height = IntGauge::new(CHAIN_HEIGHT_NAME, CHAIN_HEIGHT_HELP)?; + let chain_height = registry.new_int_gauge(CHAIN_HEIGHT_NAME, CHAIN_HEIGHT_HELP)?; let highest_available_block = - IntGauge::new(HIGHEST_AVAILABLE_BLOCK_NAME, HIGHEST_AVAILABLE_BLOCK_HELP)?; + registry.new_int_gauge(HIGHEST_AVAILABLE_BLOCK_NAME, HIGHEST_AVAILABLE_BLOCK_HELP)?; let lowest_available_block = - IntGauge::new(LOWEST_AVAILABLE_BLOCK_NAME, LOWEST_AVAILABLE_BLOCK_HELP)?; - - registry.register(Box::new(chain_height.clone()))?; - registry.register(Box::new(highest_available_block.clone()))?; - registry.register(Box::new(lowest_available_block.clone()))?; + registry.new_int_gauge(LOWEST_AVAILABLE_BLOCK_NAME, LOWEST_AVAILABLE_BLOCK_HELP)?; Ok(Metrics { chain_height, highest_available_block, lowest_available_block, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.chain_height); - unregister_metric!(self.registry, self.highest_available_block); - unregister_metric!(self.registry, self.lowest_available_block); - } -} diff --git a/node/src/components/sync_leaper/metrics.rs b/node/src/components/sync_leaper/metrics.rs index 04443d493a..f64fabda88 100644 --- a/node/src/components/sync_leaper/metrics.rs +++ b/node/src/components/sync_leaper/metrics.rs @@ -1,6 +1,6 @@ use prometheus::{Histogram, IntCounter, Registry}; -use crate::{unregister_metric, utils}; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; const SYNC_LEAP_DURATION_NAME: &str = "sync_leap_duration_seconds"; const SYNC_LEAP_DURATION_HELP: &str = "duration (in sec) to perform a successful sync leap"; @@ -15,15 +15,13 @@ const LINEAR_BUCKET_COUNT: usize = 4; #[derive(Debug)] pub(super) struct Metrics { /// Time duration to perform a sync leap. - pub(super) sync_leap_duration: Histogram, + pub(super) sync_leap_duration: RegisteredMetric, /// Number of successful sync leap responses that were received from peers. - pub(super) sync_leap_fetched_from_peer: IntCounter, + pub(super) sync_leap_fetched_from_peer: RegisteredMetric, /// Number of requests that were rejected by peers. - pub(super) sync_leap_rejected_by_peer: IntCounter, + pub(super) sync_leap_rejected_by_peer: RegisteredMetric, /// Number of requests that couldn't be fetched from peers. - pub(super) sync_leap_cant_fetch: IntCounter, - - registry: Registry, + pub(super) sync_leap_cant_fetch: RegisteredMetric, } impl Metrics { @@ -35,26 +33,21 @@ impl Metrics { LINEAR_BUCKET_COUNT, )?; - let sync_leap_fetched_from_peer = IntCounter::new( + let sync_leap_fetched_from_peer = registry.new_int_counter( "sync_leap_fetched_from_peer_total".to_string(), "number of successful sync leap responses that were received from peers".to_string(), )?; - let sync_leap_rejected_by_peer = IntCounter::new( + let sync_leap_rejected_by_peer = registry.new_int_counter( "sync_leap_rejected_by_peer_total".to_string(), "number of sync leap requests that were rejected by peers".to_string(), )?; - let sync_leap_cant_fetch = IntCounter::new( + let sync_leap_cant_fetch = registry.new_int_counter( "sync_leap_cant_fetch_total".to_string(), "number of sync leap requests that couldn't be fetched from peers".to_string(), )?; - registry.register(Box::new(sync_leap_fetched_from_peer.clone()))?; - registry.register(Box::new(sync_leap_rejected_by_peer.clone()))?; - registry.register(Box::new(sync_leap_cant_fetch.clone()))?; - Ok(Metrics { - sync_leap_duration: utils::register_histogram_metric( - registry, + sync_leap_duration: registry.new_histogram( SYNC_LEAP_DURATION_NAME, SYNC_LEAP_DURATION_HELP, buckets, @@ -62,16 +55,6 @@ impl Metrics { sync_leap_fetched_from_peer, sync_leap_rejected_by_peer, sync_leap_cant_fetch, - registry: registry.clone(), }) } } - -impl Drop for Metrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.sync_leap_duration); - unregister_metric!(self.registry, self.sync_leap_cant_fetch); - unregister_metric!(self.registry, self.sync_leap_fetched_from_peer); - unregister_metric!(self.registry, self.sync_leap_rejected_by_peer); - } -} diff --git a/node/src/utils.rs b/node/src/utils.rs index b8850e3c15..834d05eabe 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -318,19 +318,6 @@ where (numerator + denominator / T::from(2)) / denominator } -/// Creates a prometheus Histogram and registers it. -pub(crate) fn register_histogram_metric( - registry: &Registry, - metric_name: &str, - metric_help: &str, - buckets: Vec, -) -> Result { - let histogram_opts = HistogramOpts::new(metric_name, metric_help).buckets(buckets); - let histogram = Histogram::with_opts(histogram_opts)?; - registry.register(Box::new(histogram.clone()))?; - Ok(histogram) -} - /// Unregisters a metric from the Prometheus registry. #[macro_export] macro_rules! unregister_metric { diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index 7d2fed36ff..8f6693cd42 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -2,7 +2,7 @@ use prometheus::{ core::{Atomic, Collector, GenericCounter, GenericGauge}, - Counter, Histogram, HistogramOpts, IntCounter, IntGauge, Registry, + Counter, Gauge, Histogram, HistogramOpts, IntCounter, IntGauge, Registry, }; /// A metric wrapper that will deregister the metric from a given registry on drop. @@ -61,13 +61,14 @@ impl

RegisteredMetric> where P: Atomic, { - /// Adds the given amount to gauge. + /// Decrements the gauge. #[inline] - pub(crate) fn add(&self, v: P::T) { - self.inner().add(v) + pub(crate) fn dec(&self) { + self.inner().dec() } /// Returns the gauge value. + #[cfg(test)] #[inline] pub(crate) fn get(&self) -> P::T { self.inner().get() @@ -122,6 +123,21 @@ pub(crate) trait RegistryExt { help: S2, ) -> Result, prometheus::Error>; + /// Creates a new [`Histogram`] registered to this registry. + fn new_histogram, S2: Into>( + &self, + name: S1, + help: S2, + buckets: Vec, + ) -> Result, prometheus::Error>; + + /// Creates a new [`Gauge`] registered to this registry. + fn new_gauge, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error>; + /// Creates a new [`IntCounter`] registered to this registry. fn new_int_counter, S2: Into>( &self, @@ -135,14 +151,6 @@ pub(crate) trait RegistryExt { name: S1, help: S2, ) -> Result, prometheus::Error>; - - /// Creates a new [`Histogram`] registered to this registry. - fn new_histogram, S2: Into>( - &self, - name: S1, - help: S2, - buckets: Vec, - ) -> Result, prometheus::Error>; } impl RegistryExt for Registry { @@ -153,20 +161,13 @@ impl RegistryExt for Registry { ) -> Result, prometheus::Error> { RegisteredMetric::new(self.clone(), Counter::new(name, help)?) } - fn new_int_counter, S2: Into>( - &self, - name: S1, - help: S2, - ) -> Result, prometheus::Error> { - RegisteredMetric::new(self.clone(), IntCounter::new(name, help)?) - } - fn new_int_gauge, S2: Into>( + fn new_gauge, S2: Into>( &self, name: S1, help: S2, - ) -> Result, prometheus::Error> { - RegisteredMetric::new(self.clone(), IntGauge::new(name, help)?) + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), Gauge::new(name, help)?) } fn new_histogram, S2: Into>( @@ -179,4 +180,20 @@ impl RegistryExt for Registry { RegisteredMetric::new(self.clone(), Histogram::with_opts(histogram_opts)?) } + + fn new_int_counter, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), IntCounter::new(name, help)?) + } + + fn new_int_gauge, S2: Into>( + &self, + name: S1, + help: S2, + ) -> Result, prometheus::Error> { + RegisteredMetric::new(self.clone(), IntGauge::new(name, help)?) + } } From 231037e47d54f10329a822f3bf71ac45c2ef2e78 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 19:42:18 +0200 Subject: [PATCH 354/735] Finish metrics conversion, removing `unregister_metric!` --- node/src/reactor.rs | 54 ++---- node/src/reactor/event_queue_metrics.rs | 33 +--- .../reactor/main_reactor/memory_metrics.rs | 163 ++++++------------ node/src/utils.rs | 17 +- node/src/utils/registered_metric.rs | 8 +- 5 files changed, 87 insertions(+), 188 deletions(-) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 4b9dd27041..e490328f4d 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -47,7 +47,7 @@ use datasize::DataSize; use erased_serde::Serialize as ErasedSerialize; use futures::{future::BoxFuture, FutureExt}; use once_cell::sync::Lazy; -use prometheus::{self, Histogram, HistogramOpts, IntCounter, IntGauge, Registry}; +use prometheus::{self, Histogram, IntCounter, IntGauge, Registry}; use quanta::{Clock, IntoNanoseconds}; use serde::Serialize; use signal_hook::consts::signal::{SIGINT, SIGQUIT, SIGTERM}; @@ -72,9 +72,9 @@ use crate::{ ChainspecRawBytes, Deploy, ExitCode, FinalitySignature, LegacyDeploy, NodeId, SyncLeap, TrieOrChunk, }, - unregister_metric, utils::{ self, + registered_metric::{RegisteredMetric, RegistryExt}, rlimit::{Limit, OpenFiles, ResourceLimit}, Fuse, SharedFuse, WeightedRoundRobin, }, @@ -361,34 +361,30 @@ where #[derive(Debug)] struct RunnerMetrics { /// Total number of events processed. - events: IntCounter, + events: RegisteredMetric, /// Histogram of how long it took to dispatch an event. - event_dispatch_duration: Histogram, + event_dispatch_duration: RegisteredMetric, /// Total allocated RAM in bytes, as reported by stats_alloc. - allocated_ram_bytes: IntGauge, + allocated_ram_bytes: RegisteredMetric, /// Total consumed RAM in bytes, as reported by sys-info. - consumed_ram_bytes: IntGauge, + consumed_ram_bytes: RegisteredMetric, /// Total system RAM in bytes, as reported by sys-info. - total_ram_bytes: IntGauge, - /// Handle to the metrics registry, in case we need to unregister. - registry: Registry, + total_ram_bytes: RegisteredMetric, } impl RunnerMetrics { /// Create and register new runner metrics. fn new(registry: &Registry) -> Result { - let events = IntCounter::new( + let events = registry.new_int_counter( "runner_events", "running total count of events handled by this reactor", )?; // Create an event dispatch histogram, putting extra emphasis on the area between 1-10 us. - let event_dispatch_duration = Histogram::with_opts( - HistogramOpts::new( - "event_dispatch_duration", - "time in nanoseconds to dispatch an event", - ) - .buckets(vec![ + let event_dispatch_duration = registry.new_histogram( + "event_dispatch_duration", + "time in nanoseconds to dispatch an event", + vec![ 100.0, 500.0, 1_000.0, @@ -408,25 +404,19 @@ impl RunnerMetrics { 1_000_000.0, 2_000_000.0, 5_000_000.0, - ]), + ], )?; let allocated_ram_bytes = - IntGauge::new("allocated_ram_bytes", "total allocated ram in bytes")?; + registry.new_int_gauge("allocated_ram_bytes", "total allocated ram in bytes")?; let consumed_ram_bytes = - IntGauge::new("consumed_ram_bytes", "total consumed ram in bytes")?; - let total_ram_bytes = IntGauge::new("total_ram_bytes", "total system ram in bytes")?; - - registry.register(Box::new(events.clone()))?; - registry.register(Box::new(event_dispatch_duration.clone()))?; - registry.register(Box::new(allocated_ram_bytes.clone()))?; - registry.register(Box::new(consumed_ram_bytes.clone()))?; - registry.register(Box::new(total_ram_bytes.clone()))?; + registry.new_int_gauge("consumed_ram_bytes", "total consumed ram in bytes")?; + let total_ram_bytes = + registry.new_int_gauge("total_ram_bytes", "total system ram in bytes")?; Ok(RunnerMetrics { events, event_dispatch_duration, - registry: registry.clone(), allocated_ram_bytes, consumed_ram_bytes, total_ram_bytes, @@ -434,16 +424,6 @@ impl RunnerMetrics { } } -impl Drop for RunnerMetrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.events); - unregister_metric!(self.registry, self.event_dispatch_duration); - unregister_metric!(self.registry, self.allocated_ram_bytes); - unregister_metric!(self.registry, self.consumed_ram_bytes); - unregister_metric!(self.registry, self.total_ram_bytes); - } -} - impl Runner where R: Reactor, diff --git a/node/src/reactor/event_queue_metrics.rs b/node/src/reactor/event_queue_metrics.rs index a9971bff59..cf1cbc5f01 100644 --- a/node/src/reactor/event_queue_metrics.rs +++ b/node/src/reactor/event_queue_metrics.rs @@ -2,22 +2,20 @@ use std::collections::HashMap; use itertools::Itertools; use prometheus::{self, IntGauge, Registry}; -use tracing::{debug, error}; +use tracing::debug; use crate::{ reactor::{EventQueueHandle, QueueKind}, - unregister_metric, + utils::registered_metric::{RegisteredMetric, RegistryExt}, }; /// Metrics for event queue sizes. #[derive(Debug)] pub(super) struct EventQueueMetrics { /// Per queue kind gauges that measure number of event in the queue. - event_queue_gauges: HashMap, + event_queue_gauges: HashMap>, /// Total events count. - event_total: IntGauge, - /// Instance of registry to unregister from when being dropped. - registry: Registry, + event_total: RegisteredMetric, } impl EventQueueMetrics { @@ -26,31 +24,29 @@ impl EventQueueMetrics { registry: Registry, event_queue_handle: EventQueueHandle, ) -> Result { - let mut event_queue_gauges: HashMap = HashMap::new(); + let mut event_queue_gauges = HashMap::new(); for queue_kind in event_queue_handle.event_queues_counts().keys() { let key = format!("scheduler_queue_{}_count", queue_kind.metrics_name()); - let queue_event_counter = IntGauge::new( + let queue_event_counter = registry.new_int_gauge( key, format!( "current number of events in the reactor {} queue", queue_kind.metrics_name() ), )?; - registry.register(Box::new(queue_event_counter.clone()))?; + let result = event_queue_gauges.insert(*queue_kind, queue_event_counter); assert!(result.is_none(), "Map keys should not be overwritten."); } - let event_total = IntGauge::new( + let event_total = registry.new_int_gauge( "scheduler_queue_total_count", "current total number of events in all reactor queues", )?; - registry.register(Box::new(event_total.clone()))?; Ok(EventQueueMetrics { event_queue_gauges, event_total, - registry, }) } @@ -81,16 +77,3 @@ impl EventQueueMetrics { debug!(%total, %event_counts, "Collected new set of event queue sizes metrics.") } } - -impl Drop for EventQueueMetrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.event_total); - self.event_queue_gauges - .iter() - .for_each(|(key, queue_gauge)| { - self.registry - .unregister(Box::new(queue_gauge.clone())) - .unwrap_or_else(|_| error!("unregistering {} failed: was not registered", key)) - }); - } -} diff --git a/node/src/reactor/main_reactor/memory_metrics.rs b/node/src/reactor/main_reactor/memory_metrics.rs index 6aafd47436..fd09187b2a 100644 --- a/node/src/reactor/main_reactor/memory_metrics.rs +++ b/node/src/reactor/main_reactor/memory_metrics.rs @@ -1,135 +1,110 @@ use datasize::DataSize; -use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; +use prometheus::{self, Histogram, IntGauge, Registry}; use tracing::debug; use super::MainReactor; -use crate::unregister_metric; +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; /// Metrics for estimated heap memory usage for the main reactor. #[derive(Debug)] pub(super) struct MemoryMetrics { - mem_total: IntGauge, - mem_metrics: IntGauge, - mem_net: IntGauge, - mem_address_gossiper: IntGauge, - mem_storage: IntGauge, - mem_contract_runtime: IntGauge, - mem_rpc_server: IntGauge, - mem_rest_server: IntGauge, - mem_event_stream_server: IntGauge, - mem_consensus: IntGauge, - mem_deploy_gossiper: IntGauge, - mem_finality_signature_gossiper: IntGauge, - mem_block_gossiper: IntGauge, - mem_deploy_buffer: IntGauge, - mem_block_validator: IntGauge, - mem_sync_leaper: IntGauge, - mem_deploy_acceptor: IntGauge, - mem_block_synchronizer: IntGauge, - mem_block_accumulator: IntGauge, - mem_fetchers: IntGauge, - mem_diagnostics_port: IntGauge, - mem_upgrade_watcher: IntGauge, + mem_total: RegisteredMetric, + mem_metrics: RegisteredMetric, + mem_net: RegisteredMetric, + mem_address_gossiper: RegisteredMetric, + mem_storage: RegisteredMetric, + mem_contract_runtime: RegisteredMetric, + mem_rpc_server: RegisteredMetric, + mem_rest_server: RegisteredMetric, + mem_event_stream_server: RegisteredMetric, + mem_consensus: RegisteredMetric, + mem_deploy_gossiper: RegisteredMetric, + mem_finality_signature_gossiper: RegisteredMetric, + mem_block_gossiper: RegisteredMetric, + mem_deploy_buffer: RegisteredMetric, + mem_block_validator: RegisteredMetric, + mem_sync_leaper: RegisteredMetric, + mem_deploy_acceptor: RegisteredMetric, + mem_block_synchronizer: RegisteredMetric, + mem_block_accumulator: RegisteredMetric, + mem_fetchers: RegisteredMetric, + mem_diagnostics_port: RegisteredMetric, + mem_upgrade_watcher: RegisteredMetric, /// Histogram detailing how long it took to measure memory usage. - mem_estimator_runtime_s: Histogram, - registry: Registry, + mem_estimator_runtime_s: RegisteredMetric, } impl MemoryMetrics { /// Initializes a new set of memory metrics. pub(super) fn new(registry: Registry) -> Result { - let mem_total = IntGauge::new("mem_total", "total memory usage in bytes")?; - let mem_metrics = IntGauge::new("mem_metrics", "metrics memory usage in bytes")?; - let mem_net = IntGauge::new("mem_net", "network memory usage in bytes")?; - let mem_address_gossiper = IntGauge::new( + let mem_total = registry.new_int_gauge("mem_total", "total memory usage in bytes")?; + let mem_metrics = registry.new_int_gauge("mem_metrics", "metrics memory usage in bytes")?; + let mem_net = registry.new_int_gauge("mem_net", "network memory usage in bytes")?; + let mem_address_gossiper = registry.new_int_gauge( "mem_address_gossiper", "address_gossiper memory usage in bytes", )?; - let mem_storage = IntGauge::new("mem_storage", "storage memory usage in bytes")?; - let mem_contract_runtime = IntGauge::new( + let mem_storage = registry.new_int_gauge("mem_storage", "storage memory usage in bytes")?; + let mem_contract_runtime = registry.new_int_gauge( "mem_contract_runtime", "contract runtime memory usage in bytes", )?; - let mem_rpc_server = IntGauge::new("mem_rpc_server", "rpc server memory usage in bytes")?; + let mem_rpc_server = + registry.new_int_gauge("mem_rpc_server", "rpc server memory usage in bytes")?; let mem_rest_server = - IntGauge::new("mem_rest_server", "rest server memory usage in bytes")?; - let mem_event_stream_server = IntGauge::new( + registry.new_int_gauge("mem_rest_server", "rest server memory usage in bytes")?; + let mem_event_stream_server = registry.new_int_gauge( "mem_event_stream_server", "event stream server memory usage in bytes", )?; - let mem_consensus = IntGauge::new("mem_consensus", "consensus memory usage in bytes")?; - let mem_fetchers = IntGauge::new("mem_fetchers", "combined fetcher memory usage in bytes")?; - let mem_deploy_gossiper = IntGauge::new( + let mem_consensus = + registry.new_int_gauge("mem_consensus", "consensus memory usage in bytes")?; + let mem_fetchers = + registry.new_int_gauge("mem_fetchers", "combined fetcher memory usage in bytes")?; + let mem_deploy_gossiper = registry.new_int_gauge( "mem_deploy_gossiper", "deploy gossiper memory usage in bytes", )?; - let mem_finality_signature_gossiper = IntGauge::new( + let mem_finality_signature_gossiper = registry.new_int_gauge( "mem_finality_signature_gossiper", "finality signature gossiper memory usage in bytes", )?; let mem_block_gossiper = - IntGauge::new("mem_block_gossiper", "block gossiper memory usage in bytes")?; + registry.new_int_gauge("mem_block_gossiper", "block gossiper memory usage in bytes")?; let mem_deploy_buffer = - IntGauge::new("mem_deploy_buffer", "deploy buffer memory usage in bytes")?; - let mem_block_validator = IntGauge::new( + registry.new_int_gauge("mem_deploy_buffer", "deploy buffer memory usage in bytes")?; + let mem_block_validator = registry.new_int_gauge( "mem_block_validator", "block validator memory usage in bytes", )?; let mem_sync_leaper = - IntGauge::new("mem_sync_leaper", "sync leaper memory usage in bytes")?; - let mem_deploy_acceptor = IntGauge::new( + registry.new_int_gauge("mem_sync_leaper", "sync leaper memory usage in bytes")?; + let mem_deploy_acceptor = registry.new_int_gauge( "mem_deploy_acceptor", "deploy acceptor memory usage in bytes", )?; - let mem_block_synchronizer = IntGauge::new( + let mem_block_synchronizer = registry.new_int_gauge( "mem_block_synchronizer", "block synchronizer memory usage in bytes", )?; - let mem_block_accumulator = IntGauge::new( + let mem_block_accumulator = registry.new_int_gauge( "mem_block_accumulator", "block accumulator memory usage in bytes", )?; - let mem_diagnostics_port = IntGauge::new( + let mem_diagnostics_port = registry.new_int_gauge( "mem_diagnostics_port", "diagnostics port memory usage in bytes", )?; - let mem_upgrade_watcher = IntGauge::new( + let mem_upgrade_watcher = registry.new_int_gauge( "mem_upgrade_watcher", "upgrade watcher memory usage in bytes", )?; - let mem_estimator_runtime_s = Histogram::with_opts( - HistogramOpts::new( - "mem_estimator_runtime_s", - "time in seconds to estimate memory usage", - ) - // Create buckets from one nanosecond to eight seconds. - .buckets(prometheus::exponential_buckets(0.000_000_004, 2.0, 32)?), + let mem_estimator_runtime_s = registry.new_histogram( + "mem_estimator_runtime_s", + "time in seconds to estimate memory usage", + prometheus::exponential_buckets(0.000_000_004, 2.0, 32)?, )?; - registry.register(Box::new(mem_total.clone()))?; - registry.register(Box::new(mem_metrics.clone()))?; - registry.register(Box::new(mem_net.clone()))?; - registry.register(Box::new(mem_address_gossiper.clone()))?; - registry.register(Box::new(mem_storage.clone()))?; - registry.register(Box::new(mem_contract_runtime.clone()))?; - registry.register(Box::new(mem_rpc_server.clone()))?; - registry.register(Box::new(mem_rest_server.clone()))?; - registry.register(Box::new(mem_event_stream_server.clone()))?; - registry.register(Box::new(mem_consensus.clone()))?; - registry.register(Box::new(mem_fetchers.clone()))?; - registry.register(Box::new(mem_deploy_gossiper.clone()))?; - registry.register(Box::new(mem_finality_signature_gossiper.clone()))?; - registry.register(Box::new(mem_block_gossiper.clone()))?; - registry.register(Box::new(mem_deploy_buffer.clone()))?; - registry.register(Box::new(mem_block_validator.clone()))?; - registry.register(Box::new(mem_sync_leaper.clone()))?; - registry.register(Box::new(mem_deploy_acceptor.clone()))?; - registry.register(Box::new(mem_block_synchronizer.clone()))?; - registry.register(Box::new(mem_block_accumulator.clone()))?; - registry.register(Box::new(mem_diagnostics_port.clone()))?; - registry.register(Box::new(mem_upgrade_watcher.clone()))?; - registry.register(Box::new(mem_estimator_runtime_s.clone()))?; - Ok(MemoryMetrics { mem_total, mem_metrics, @@ -154,7 +129,6 @@ impl MemoryMetrics { mem_diagnostics_port, mem_upgrade_watcher, mem_estimator_runtime_s, - registry, }) } @@ -261,32 +235,3 @@ impl MemoryMetrics { "Collected new set of memory metrics."); } } - -impl Drop for MemoryMetrics { - fn drop(&mut self) { - unregister_metric!(self.registry, self.mem_total); - unregister_metric!(self.registry, self.mem_metrics); - unregister_metric!(self.registry, self.mem_estimator_runtime_s); - - unregister_metric!(self.registry, self.mem_net); - unregister_metric!(self.registry, self.mem_address_gossiper); - unregister_metric!(self.registry, self.mem_storage); - unregister_metric!(self.registry, self.mem_contract_runtime); - unregister_metric!(self.registry, self.mem_rpc_server); - unregister_metric!(self.registry, self.mem_rest_server); - unregister_metric!(self.registry, self.mem_event_stream_server); - unregister_metric!(self.registry, self.mem_consensus); - unregister_metric!(self.registry, self.mem_fetchers); - unregister_metric!(self.registry, self.mem_deploy_gossiper); - unregister_metric!(self.registry, self.mem_finality_signature_gossiper); - unregister_metric!(self.registry, self.mem_block_gossiper); - unregister_metric!(self.registry, self.mem_deploy_buffer); - unregister_metric!(self.registry, self.mem_block_validator); - unregister_metric!(self.registry, self.mem_sync_leaper); - unregister_metric!(self.registry, self.mem_deploy_acceptor); - unregister_metric!(self.registry, self.mem_block_synchronizer); - unregister_metric!(self.registry, self.mem_block_accumulator); - unregister_metric!(self.registry, self.mem_diagnostics_port); - unregister_metric!(self.registry, self.mem_upgrade_watcher); - } -} diff --git a/node/src/utils.rs b/node/src/utils.rs index 834d05eabe..5fd03ad4a1 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -32,7 +32,7 @@ use fs2::FileExt; use futures::future::Either; use hyper::server::{conn::AddrIncoming, Builder, Server}; -use prometheus::{self, Histogram, HistogramOpts, IntGauge, Registry}; +use prometheus::{self, IntGauge}; use serde::Serialize; use thiserror::Error; use tracing::{error, warn}; @@ -318,21 +318,6 @@ where (numerator + denominator / T::from(2)) / denominator } -/// Unregisters a metric from the Prometheus registry. -#[macro_export] -macro_rules! unregister_metric { - ($registry:expr, $metric:expr) => { - $registry - .unregister(Box::new($metric.clone())) - .unwrap_or_else(|_| { - tracing::error!( - "unregistering {} failed: was not registered", - stringify!($metric) - ) - }); - }; -} - /// XORs two byte sequences. /// /// # Panics diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index 8f6693cd42..f40cd525a2 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -2,7 +2,7 @@ use prometheus::{ core::{Atomic, Collector, GenericCounter, GenericGauge}, - Counter, Gauge, Histogram, HistogramOpts, IntCounter, IntGauge, Registry, + Counter, Gauge, Histogram, HistogramOpts, HistogramTimer, IntCounter, IntGauge, Registry, }; /// A metric wrapper that will deregister the metric from a given registry on drop. @@ -93,6 +93,12 @@ impl RegisteredMetric { pub(crate) fn observe(&self, v: f64) { self.inner().observe(v) } + + /// Creates a new histogram timer. + #[inline] + pub(crate) fn start_timer(&self) -> HistogramTimer { + self.inner().start_timer() + } } impl Drop for RegisteredMetric From eab4fbc236401934d8289554c93d7deb4c1c5d2c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 19:52:49 +0200 Subject: [PATCH 355/735] Fix a typo in `registered_metric` docs --- node/src/utils/registered_metric.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index f40cd525a2..f2d9e18f95 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -1,4 +1,4 @@ -//! Self registereing and deregistering metrics support. +//! Self registering and deregistering metrics support. use prometheus::{ core::{Atomic, Collector, GenericCounter, GenericGauge}, From f23f5489b1136f8dbdcc11c9ed5c7a948daf1ad1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Apr 2023 20:13:04 +0200 Subject: [PATCH 356/735] Fix clippy lint in `::drop` --- node/src/utils/registered_metric.rs | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index f2d9e18f95..6a6e726b0a 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -109,8 +109,7 @@ where if let Some(boxed_metric) = self.metric.take() { let desc = boxed_metric .desc() - .iter() - .next() + .first() .map(|desc| desc.fq_name.clone()) .unwrap_or_default(); self.registry.unregister(boxed_metric).unwrap_or_else(|_| { From ece11f801ab93ef9d1cd4df82f173a84c593e120 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 5 Apr 2023 16:05:42 +0200 Subject: [PATCH 357/735] Capture metrics from a 1.5 node --- metrics-1.5.txt | 808 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 808 insertions(+) create mode 100644 metrics-1.5.txt diff --git a/metrics-1.5.txt b/metrics-1.5.txt new file mode 100644 index 0000000000..7c7525443f --- /dev/null +++ b/metrics-1.5.txt @@ -0,0 +1,808 @@ +# HELP accumulated_incoming_limiter_delay seconds spent delaying incoming traffic from non-validators due to limiter, in seconds. +# TYPE accumulated_incoming_limiter_delay counter +accumulated_incoming_limiter_delay 0 +# HELP accumulated_outgoing_limiter_delay seconds spent delaying outgoing traffic to non-validators due to limiter, in seconds +# TYPE accumulated_outgoing_limiter_delay counter +accumulated_outgoing_limiter_delay 0 +# HELP address_gossiper_items_received number of items received by the address_gossiper +# TYPE address_gossiper_items_received counter +address_gossiper_items_received 3 +# HELP address_gossiper_table_items_current number of items in the gossip table of address_gossiper in state current +# TYPE address_gossiper_table_items_current gauge +address_gossiper_table_items_current 0 +# HELP address_gossiper_table_items_finished number of items in the gossip table of address_gossiper in state finished +# TYPE address_gossiper_table_items_finished gauge +address_gossiper_table_items_finished 1 +# HELP address_gossiper_times_gossiped number of times the address_gossiper sent gossip requests to peers +# TYPE address_gossiper_times_gossiped counter +address_gossiper_times_gossiped 0 +# HELP address_gossiper_times_ran_out_of_peers number of times the address_gossiper ran out of peers and had to pause +# TYPE address_gossiper_times_ran_out_of_peers counter +address_gossiper_times_ran_out_of_peers 3 +# HELP allocated_ram_bytes total allocated ram in bytes +# TYPE allocated_ram_bytes gauge +allocated_ram_bytes 0 +# HELP amount_of_blocks the number of blocks finalized so far +# TYPE amount_of_blocks gauge +amount_of_blocks 0 +# HELP approvals_hashes_fetch_total number of approvals_hashes all fetch requests made +# TYPE approvals_hashes_fetch_total counter +approvals_hashes_fetch_total 0 +# HELP approvals_hashes_found_in_storage number of fetch requests that found approvals_hashes in local storage +# TYPE approvals_hashes_found_in_storage counter +approvals_hashes_found_in_storage 0 +# HELP approvals_hashes_found_on_peer number of fetch requests that fetched approvals_hashes from peer +# TYPE approvals_hashes_found_on_peer counter +approvals_hashes_found_on_peer 0 +# HELP approvals_hashes_timeouts number of approvals_hashes fetch requests that timed out +# TYPE approvals_hashes_timeouts counter +approvals_hashes_timeouts 0 +# HELP block_accumulator_block_acceptors number of block acceptors in the Block Accumulator +# TYPE block_accumulator_block_acceptors gauge +block_accumulator_block_acceptors 0 +# HELP block_accumulator_known_child_blocks number of blocks received by the Block Accumulator for which we know the hash of the child block +# TYPE block_accumulator_known_child_blocks gauge +block_accumulator_known_child_blocks 0 +# HELP block_execution_results_or_chunk_fetcher_fetch_total number of block_execution_results_or_chunk_fetcher all fetch requests made +# TYPE block_execution_results_or_chunk_fetcher_fetch_total counter +block_execution_results_or_chunk_fetcher_fetch_total 0 +# HELP block_execution_results_or_chunk_fetcher_found_in_storage number of fetch requests that found block_execution_results_or_chunk_fetcher in local storage +# TYPE block_execution_results_or_chunk_fetcher_found_in_storage counter +block_execution_results_or_chunk_fetcher_found_in_storage 0 +# HELP block_execution_results_or_chunk_fetcher_found_on_peer number of fetch requests that fetched block_execution_results_or_chunk_fetcher from peer +# TYPE block_execution_results_or_chunk_fetcher_found_on_peer counter +block_execution_results_or_chunk_fetcher_found_on_peer 0 +# HELP block_execution_results_or_chunk_fetcher_timeouts number of block_execution_results_or_chunk_fetcher fetch requests that timed out +# TYPE block_execution_results_or_chunk_fetcher_timeouts counter +block_execution_results_or_chunk_fetcher_timeouts 0 +# HELP block_fetch_total number of block all fetch requests made +# TYPE block_fetch_total counter +block_fetch_total 0 +# HELP block_found_in_storage number of fetch requests that found block in local storage +# TYPE block_found_in_storage counter +block_found_in_storage 0 +# HELP block_found_on_peer number of fetch requests that fetched block from peer +# TYPE block_found_on_peer counter +block_found_on_peer 0 +# HELP block_gossiper_items_received number of items received by the block_gossiper +# TYPE block_gossiper_items_received counter +block_gossiper_items_received 0 +# HELP block_gossiper_table_items_current number of items in the gossip table of block_gossiper in state current +# TYPE block_gossiper_table_items_current gauge +block_gossiper_table_items_current 0 +# HELP block_gossiper_table_items_finished number of items in the gossip table of block_gossiper in state finished +# TYPE block_gossiper_table_items_finished gauge +block_gossiper_table_items_finished 0 +# HELP block_gossiper_times_gossiped number of times the block_gossiper sent gossip requests to peers +# TYPE block_gossiper_times_gossiped counter +block_gossiper_times_gossiped 0 +# HELP block_gossiper_times_ran_out_of_peers number of times the block_gossiper ran out of peers and had to pause +# TYPE block_gossiper_times_ran_out_of_peers counter +block_gossiper_times_ran_out_of_peers 0 +# HELP block_header_fetch_total number of block_header all fetch requests made +# TYPE block_header_fetch_total counter +block_header_fetch_total 0 +# HELP block_header_found_in_storage number of fetch requests that found block_header in local storage +# TYPE block_header_found_in_storage counter +block_header_found_in_storage 0 +# HELP block_header_found_on_peer number of fetch requests that fetched block_header from peer +# TYPE block_header_found_on_peer counter +block_header_found_on_peer 0 +# HELP block_header_timeouts number of block_header fetch requests that timed out +# TYPE block_header_timeouts counter +block_header_timeouts 0 +# HELP block_timeouts number of block fetch requests that timed out +# TYPE block_timeouts counter +block_timeouts 0 +# HELP chain_height highest complete block (DEPRECATED) +# TYPE chain_height gauge +chain_height 0 +# HELP consensus_current_era the current era in consensus +# TYPE consensus_current_era gauge +consensus_current_era 0 +# HELP consumed_ram_bytes total consumed ram in bytes +# TYPE consumed_ram_bytes gauge +consumed_ram_bytes 0 +# HELP contract_runtime_apply_commit time in seconds to commit the execution effects of a contract +# TYPE contract_runtime_apply_commit histogram +contract_runtime_apply_commit_bucket{le="0.01"} 0 +contract_runtime_apply_commit_bucket{le="0.02"} 0 +contract_runtime_apply_commit_bucket{le="0.04"} 0 +contract_runtime_apply_commit_bucket{le="0.08"} 0 +contract_runtime_apply_commit_bucket{le="0.16"} 0 +contract_runtime_apply_commit_bucket{le="0.32"} 0 +contract_runtime_apply_commit_bucket{le="0.64"} 0 +contract_runtime_apply_commit_bucket{le="1.28"} 0 +contract_runtime_apply_commit_bucket{le="2.56"} 0 +contract_runtime_apply_commit_bucket{le="5.12"} 0 +contract_runtime_apply_commit_bucket{le="+Inf"} 0 +contract_runtime_apply_commit_sum 0 +contract_runtime_apply_commit_count 0 +# HELP contract_runtime_commit_step time in seconds to commit the step at era end +# TYPE contract_runtime_commit_step histogram +contract_runtime_commit_step_bucket{le="0.01"} 0 +contract_runtime_commit_step_bucket{le="0.02"} 0 +contract_runtime_commit_step_bucket{le="0.04"} 0 +contract_runtime_commit_step_bucket{le="0.08"} 0 +contract_runtime_commit_step_bucket{le="0.16"} 0 +contract_runtime_commit_step_bucket{le="0.32"} 0 +contract_runtime_commit_step_bucket{le="0.64"} 0 +contract_runtime_commit_step_bucket{le="1.28"} 0 +contract_runtime_commit_step_bucket{le="2.56"} 0 +contract_runtime_commit_step_bucket{le="5.12"} 0 +contract_runtime_commit_step_bucket{le="+Inf"} 0 +contract_runtime_commit_step_sum 0 +contract_runtime_commit_step_count 0 +# HELP contract_runtime_commit_upgrade time in seconds to commit an upgrade +# TYPE contract_runtime_commit_upgrade histogram +contract_runtime_commit_upgrade_bucket{le="0.01"} 0 +contract_runtime_commit_upgrade_bucket{le="0.02"} 0 +contract_runtime_commit_upgrade_bucket{le="0.04"} 0 +contract_runtime_commit_upgrade_bucket{le="0.08"} 0 +contract_runtime_commit_upgrade_bucket{le="0.16"} 0 +contract_runtime_commit_upgrade_bucket{le="0.32"} 0 +contract_runtime_commit_upgrade_bucket{le="0.64"} 0 +contract_runtime_commit_upgrade_bucket{le="1.28"} 0 +contract_runtime_commit_upgrade_bucket{le="2.56"} 0 +contract_runtime_commit_upgrade_bucket{le="5.12"} 0 +contract_runtime_commit_upgrade_bucket{le="+Inf"} 0 +contract_runtime_commit_upgrade_sum 0 +contract_runtime_commit_upgrade_count 0 +# HELP contract_runtime_execute_block time in seconds to execute all deploys in a block +# TYPE contract_runtime_execute_block histogram +contract_runtime_execute_block_bucket{le="0.01"} 0 +contract_runtime_execute_block_bucket{le="0.02"} 0 +contract_runtime_execute_block_bucket{le="0.04"} 0 +contract_runtime_execute_block_bucket{le="0.08"} 0 +contract_runtime_execute_block_bucket{le="0.16"} 0 +contract_runtime_execute_block_bucket{le="0.32"} 0 +contract_runtime_execute_block_bucket{le="0.64"} 0 +contract_runtime_execute_block_bucket{le="1.28"} 0 +contract_runtime_execute_block_bucket{le="2.56"} 0 +contract_runtime_execute_block_bucket{le="5.12"} 0 +contract_runtime_execute_block_bucket{le="+Inf"} 0 +contract_runtime_execute_block_sum 0 +contract_runtime_execute_block_count 0 +# HELP contract_runtime_get_balance time in seconds to get the balance of a purse from global state +# TYPE contract_runtime_get_balance histogram +contract_runtime_get_balance_bucket{le="0.01"} 0 +contract_runtime_get_balance_bucket{le="0.02"} 0 +contract_runtime_get_balance_bucket{le="0.04"} 0 +contract_runtime_get_balance_bucket{le="0.08"} 0 +contract_runtime_get_balance_bucket{le="0.16"} 0 +contract_runtime_get_balance_bucket{le="0.32"} 0 +contract_runtime_get_balance_bucket{le="0.64"} 0 +contract_runtime_get_balance_bucket{le="1.28"} 0 +contract_runtime_get_balance_bucket{le="2.56"} 0 +contract_runtime_get_balance_bucket{le="5.12"} 0 +contract_runtime_get_balance_bucket{le="+Inf"} 0 +contract_runtime_get_balance_sum 0 +contract_runtime_get_balance_count 0 +# HELP contract_runtime_get_bids time in seconds to get bids from global state +# TYPE contract_runtime_get_bids histogram +contract_runtime_get_bids_bucket{le="0.01"} 0 +contract_runtime_get_bids_bucket{le="0.02"} 0 +contract_runtime_get_bids_bucket{le="0.04"} 0 +contract_runtime_get_bids_bucket{le="0.08"} 0 +contract_runtime_get_bids_bucket{le="0.16"} 0 +contract_runtime_get_bids_bucket{le="0.32"} 0 +contract_runtime_get_bids_bucket{le="0.64"} 0 +contract_runtime_get_bids_bucket{le="1.28"} 0 +contract_runtime_get_bids_bucket{le="2.56"} 0 +contract_runtime_get_bids_bucket{le="5.12"} 0 +contract_runtime_get_bids_bucket{le="+Inf"} 0 +contract_runtime_get_bids_sum 0 +contract_runtime_get_bids_count 0 +# HELP contract_runtime_get_era_validators time in seconds to get validators for a given era from global state +# TYPE contract_runtime_get_era_validators histogram +contract_runtime_get_era_validators_bucket{le="0.01"} 0 +contract_runtime_get_era_validators_bucket{le="0.02"} 0 +contract_runtime_get_era_validators_bucket{le="0.04"} 0 +contract_runtime_get_era_validators_bucket{le="0.08"} 0 +contract_runtime_get_era_validators_bucket{le="0.16"} 0 +contract_runtime_get_era_validators_bucket{le="0.32"} 0 +contract_runtime_get_era_validators_bucket{le="0.64"} 0 +contract_runtime_get_era_validators_bucket{le="1.28"} 0 +contract_runtime_get_era_validators_bucket{le="2.56"} 0 +contract_runtime_get_era_validators_bucket{le="5.12"} 0 +contract_runtime_get_era_validators_bucket{le="+Inf"} 0 +contract_runtime_get_era_validators_sum 0 +contract_runtime_get_era_validators_count 0 +# HELP contract_runtime_get_trie time in seconds to get a trie +# TYPE contract_runtime_get_trie histogram +contract_runtime_get_trie_bucket{le="0.001"} 0 +contract_runtime_get_trie_bucket{le="0.002"} 0 +contract_runtime_get_trie_bucket{le="0.004"} 0 +contract_runtime_get_trie_bucket{le="0.008"} 0 +contract_runtime_get_trie_bucket{le="0.016"} 0 +contract_runtime_get_trie_bucket{le="0.032"} 0 +contract_runtime_get_trie_bucket{le="0.064"} 0 +contract_runtime_get_trie_bucket{le="0.128"} 0 +contract_runtime_get_trie_bucket{le="0.256"} 0 +contract_runtime_get_trie_bucket{le="0.512"} 0 +contract_runtime_get_trie_bucket{le="+Inf"} 0 +contract_runtime_get_trie_sum 0 +contract_runtime_get_trie_count 0 +# HELP contract_runtime_latest_commit_step duration in seconds of latest commit step at era end +# TYPE contract_runtime_latest_commit_step gauge +contract_runtime_latest_commit_step 0 +# HELP contract_runtime_put_trie time in seconds to put a trie +# TYPE contract_runtime_put_trie histogram +contract_runtime_put_trie_bucket{le="0.001"} 0 +contract_runtime_put_trie_bucket{le="0.002"} 0 +contract_runtime_put_trie_bucket{le="0.004"} 0 +contract_runtime_put_trie_bucket{le="0.008"} 0 +contract_runtime_put_trie_bucket{le="0.016"} 0 +contract_runtime_put_trie_bucket{le="0.032"} 0 +contract_runtime_put_trie_bucket{le="0.064"} 0 +contract_runtime_put_trie_bucket{le="0.128"} 0 +contract_runtime_put_trie_bucket{le="0.256"} 0 +contract_runtime_put_trie_bucket{le="0.512"} 0 +contract_runtime_put_trie_bucket{le="+Inf"} 0 +contract_runtime_put_trie_sum 0 +contract_runtime_put_trie_count 0 +# HELP contract_runtime_run_execute time in seconds to execute but not commit a contract +# TYPE contract_runtime_run_execute histogram +contract_runtime_run_execute_bucket{le="0.01"} 0 +contract_runtime_run_execute_bucket{le="0.02"} 0 +contract_runtime_run_execute_bucket{le="0.04"} 0 +contract_runtime_run_execute_bucket{le="0.08"} 0 +contract_runtime_run_execute_bucket{le="0.16"} 0 +contract_runtime_run_execute_bucket{le="0.32"} 0 +contract_runtime_run_execute_bucket{le="0.64"} 0 +contract_runtime_run_execute_bucket{le="1.28"} 0 +contract_runtime_run_execute_bucket{le="2.56"} 0 +contract_runtime_run_execute_bucket{le="5.12"} 0 +contract_runtime_run_execute_bucket{le="+Inf"} 0 +contract_runtime_run_execute_sum 0 +contract_runtime_run_execute_count 0 +# HELP contract_runtime_run_query time in seconds to run a query in global state +# TYPE contract_runtime_run_query histogram +contract_runtime_run_query_bucket{le="0.01"} 0 +contract_runtime_run_query_bucket{le="0.02"} 0 +contract_runtime_run_query_bucket{le="0.04"} 0 +contract_runtime_run_query_bucket{le="0.08"} 0 +contract_runtime_run_query_bucket{le="0.16"} 0 +contract_runtime_run_query_bucket{le="0.32"} 0 +contract_runtime_run_query_bucket{le="0.64"} 0 +contract_runtime_run_query_bucket{le="1.28"} 0 +contract_runtime_run_query_bucket{le="2.56"} 0 +contract_runtime_run_query_bucket{le="5.12"} 0 +contract_runtime_run_query_bucket{le="+Inf"} 0 +contract_runtime_run_query_sum 0 +contract_runtime_run_query_count 0 +# HELP deploy_acceptor_accepted_deploy time in seconds to accept a deploy in the deploy acceptor +# TYPE deploy_acceptor_accepted_deploy histogram +deploy_acceptor_accepted_deploy_bucket{le="10"} 0 +deploy_acceptor_accepted_deploy_bucket{le="20"} 0 +deploy_acceptor_accepted_deploy_bucket{le="40"} 0 +deploy_acceptor_accepted_deploy_bucket{le="80"} 0 +deploy_acceptor_accepted_deploy_bucket{le="160"} 0 +deploy_acceptor_accepted_deploy_bucket{le="320"} 0 +deploy_acceptor_accepted_deploy_bucket{le="640"} 0 +deploy_acceptor_accepted_deploy_bucket{le="1280"} 0 +deploy_acceptor_accepted_deploy_bucket{le="2560"} 0 +deploy_acceptor_accepted_deploy_bucket{le="5120"} 0 +deploy_acceptor_accepted_deploy_bucket{le="+Inf"} 0 +deploy_acceptor_accepted_deploy_sum 0 +deploy_acceptor_accepted_deploy_count 0 +# HELP deploy_acceptor_rejected_deploy time in seconds to reject a deploy in the deploy acceptor +# TYPE deploy_acceptor_rejected_deploy histogram +deploy_acceptor_rejected_deploy_bucket{le="10"} 0 +deploy_acceptor_rejected_deploy_bucket{le="20"} 0 +deploy_acceptor_rejected_deploy_bucket{le="40"} 0 +deploy_acceptor_rejected_deploy_bucket{le="80"} 0 +deploy_acceptor_rejected_deploy_bucket{le="160"} 0 +deploy_acceptor_rejected_deploy_bucket{le="320"} 0 +deploy_acceptor_rejected_deploy_bucket{le="640"} 0 +deploy_acceptor_rejected_deploy_bucket{le="1280"} 0 +deploy_acceptor_rejected_deploy_bucket{le="2560"} 0 +deploy_acceptor_rejected_deploy_bucket{le="5120"} 0 +deploy_acceptor_rejected_deploy_bucket{le="+Inf"} 0 +deploy_acceptor_rejected_deploy_sum 0 +deploy_acceptor_rejected_deploy_count 0 +# HELP deploy_buffer_dead_deploys number of deploys that should not be included in future proposals. +# TYPE deploy_buffer_dead_deploys gauge +deploy_buffer_dead_deploys 0 +# HELP deploy_buffer_held_deploys number of deploys included in in-flight proposed blocks. +# TYPE deploy_buffer_held_deploys gauge +deploy_buffer_held_deploys 0 +# HELP deploy_buffer_total_deploys total number of deploys contained in the deploy buffer. +# TYPE deploy_buffer_total_deploys gauge +deploy_buffer_total_deploys 0 +# HELP deploy_fetch_total number of deploy all fetch requests made +# TYPE deploy_fetch_total counter +deploy_fetch_total 0 +# HELP deploy_found_in_storage number of fetch requests that found deploy in local storage +# TYPE deploy_found_in_storage counter +deploy_found_in_storage 0 +# HELP deploy_found_on_peer number of fetch requests that fetched deploy from peer +# TYPE deploy_found_on_peer counter +deploy_found_on_peer 0 +# HELP deploy_gossiper_items_received number of items received by the deploy_gossiper +# TYPE deploy_gossiper_items_received counter +deploy_gossiper_items_received 0 +# HELP deploy_gossiper_table_items_current number of items in the gossip table of deploy_gossiper in state current +# TYPE deploy_gossiper_table_items_current gauge +deploy_gossiper_table_items_current 0 +# HELP deploy_gossiper_table_items_finished number of items in the gossip table of deploy_gossiper in state finished +# TYPE deploy_gossiper_table_items_finished gauge +deploy_gossiper_table_items_finished 0 +# HELP deploy_gossiper_times_gossiped number of times the deploy_gossiper sent gossip requests to peers +# TYPE deploy_gossiper_times_gossiped counter +deploy_gossiper_times_gossiped 0 +# HELP deploy_gossiper_times_ran_out_of_peers number of times the deploy_gossiper ran out of peers and had to pause +# TYPE deploy_gossiper_times_ran_out_of_peers counter +deploy_gossiper_times_ran_out_of_peers 0 +# HELP deploy_timeouts number of deploy fetch requests that timed out +# TYPE deploy_timeouts counter +deploy_timeouts 0 +# HELP event_dispatch_duration time in nanoseconds to dispatch an event +# TYPE event_dispatch_duration histogram +event_dispatch_duration_bucket{le="100"} 0 +event_dispatch_duration_bucket{le="500"} 0 +event_dispatch_duration_bucket{le="1000"} 0 +event_dispatch_duration_bucket{le="5000"} 4 +event_dispatch_duration_bucket{le="10000"} 4 +event_dispatch_duration_bucket{le="20000"} 4 +event_dispatch_duration_bucket{le="50000"} 9 +event_dispatch_duration_bucket{le="100000"} 20 +event_dispatch_duration_bucket{le="200000"} 45 +event_dispatch_duration_bucket{le="300000"} 78 +event_dispatch_duration_bucket{le="400000"} 126 +event_dispatch_duration_bucket{le="500000"} 200 +event_dispatch_duration_bucket{le="600000"} 247 +event_dispatch_duration_bucket{le="700000"} 271 +event_dispatch_duration_bucket{le="800000"} 274 +event_dispatch_duration_bucket{le="900000"} 276 +event_dispatch_duration_bucket{le="1000000"} 281 +event_dispatch_duration_bucket{le="2000000"} 305 +event_dispatch_duration_bucket{le="5000000"} 315 +event_dispatch_duration_bucket{le="+Inf"} 316 +event_dispatch_duration_sum 183686355 +event_dispatch_duration_count 316 +# HELP execution_queue_size number of blocks that are currently enqueued and waiting for execution +# TYPE execution_queue_size gauge +execution_queue_size 0 +# HELP finality_signature_fetcher_fetch_total number of finality_signature_fetcher all fetch requests made +# TYPE finality_signature_fetcher_fetch_total counter +finality_signature_fetcher_fetch_total 0 +# HELP finality_signature_fetcher_found_in_storage number of fetch requests that found finality_signature_fetcher in local storage +# TYPE finality_signature_fetcher_found_in_storage counter +finality_signature_fetcher_found_in_storage 0 +# HELP finality_signature_fetcher_found_on_peer number of fetch requests that fetched finality_signature_fetcher from peer +# TYPE finality_signature_fetcher_found_on_peer counter +finality_signature_fetcher_found_on_peer 0 +# HELP finality_signature_fetcher_timeouts number of finality_signature_fetcher fetch requests that timed out +# TYPE finality_signature_fetcher_timeouts counter +finality_signature_fetcher_timeouts 0 +# HELP finality_signature_gossiper_items_received number of items received by the finality_signature_gossiper +# TYPE finality_signature_gossiper_items_received counter +finality_signature_gossiper_items_received 0 +# HELP finality_signature_gossiper_table_items_current number of items in the gossip table of finality_signature_gossiper in state current +# TYPE finality_signature_gossiper_table_items_current gauge +finality_signature_gossiper_table_items_current 0 +# HELP finality_signature_gossiper_table_items_finished number of items in the gossip table of finality_signature_gossiper in state finished +# TYPE finality_signature_gossiper_table_items_finished gauge +finality_signature_gossiper_table_items_finished 0 +# HELP finality_signature_gossiper_times_gossiped number of times the finality_signature_gossiper sent gossip requests to peers +# TYPE finality_signature_gossiper_times_gossiped counter +finality_signature_gossiper_times_gossiped 0 +# HELP finality_signature_gossiper_times_ran_out_of_peers number of times the finality_signature_gossiper ran out of peers and had to pause +# TYPE finality_signature_gossiper_times_ran_out_of_peers counter +finality_signature_gossiper_times_ran_out_of_peers 0 +# HELP finalization_time the amount of time, in milliseconds, between proposal and finalization of the latest finalized block +# TYPE finalization_time gauge +finalization_time 0 +# HELP forward_block_sync_duration_seconds duration (in sec) to synchronize a forward block +# TYPE forward_block_sync_duration_seconds histogram +forward_block_sync_duration_seconds_bucket{le="0.05"} 0 +forward_block_sync_duration_seconds_bucket{le="0.08750000000000001"} 0 +forward_block_sync_duration_seconds_bucket{le="0.153125"} 0 +forward_block_sync_duration_seconds_bucket{le="0.26796875000000003"} 0 +forward_block_sync_duration_seconds_bucket{le="0.46894531250000004"} 0 +forward_block_sync_duration_seconds_bucket{le="0.8206542968750001"} 0 +forward_block_sync_duration_seconds_bucket{le="1.4361450195312502"} 0 +forward_block_sync_duration_seconds_bucket{le="2.513253784179688"} 0 +forward_block_sync_duration_seconds_bucket{le="4.398194122314454"} 0 +forward_block_sync_duration_seconds_bucket{le="7.696839714050294"} 0 +forward_block_sync_duration_seconds_bucket{le="+Inf"} 0 +forward_block_sync_duration_seconds_sum 0 +forward_block_sync_duration_seconds_count 0 +# HELP highest_available_block_height highest height of the available block range (the highest contiguous chain of complete blocks) +# TYPE highest_available_block_height gauge +highest_available_block_height 0 +# HELP historical_block_sync_duration_seconds duration (in sec) to synchronize a historical block +# TYPE historical_block_sync_duration_seconds histogram +historical_block_sync_duration_seconds_bucket{le="0.05"} 0 +historical_block_sync_duration_seconds_bucket{le="0.08750000000000001"} 0 +historical_block_sync_duration_seconds_bucket{le="0.153125"} 0 +historical_block_sync_duration_seconds_bucket{le="0.26796875000000003"} 0 +historical_block_sync_duration_seconds_bucket{le="0.46894531250000004"} 0 +historical_block_sync_duration_seconds_bucket{le="0.8206542968750001"} 0 +historical_block_sync_duration_seconds_bucket{le="1.4361450195312502"} 0 +historical_block_sync_duration_seconds_bucket{le="2.513253784179688"} 0 +historical_block_sync_duration_seconds_bucket{le="4.398194122314454"} 0 +historical_block_sync_duration_seconds_bucket{le="7.696839714050294"} 0 +historical_block_sync_duration_seconds_bucket{le="+Inf"} 0 +historical_block_sync_duration_seconds_sum 0 +historical_block_sync_duration_seconds_count 0 +# HELP legacy_deploy_fetch_total number of legacy_deploy all fetch requests made +# TYPE legacy_deploy_fetch_total counter +legacy_deploy_fetch_total 0 +# HELP legacy_deploy_found_in_storage number of fetch requests that found legacy_deploy in local storage +# TYPE legacy_deploy_found_in_storage counter +legacy_deploy_found_in_storage 0 +# HELP legacy_deploy_found_on_peer number of fetch requests that fetched legacy_deploy from peer +# TYPE legacy_deploy_found_on_peer counter +legacy_deploy_found_on_peer 0 +# HELP legacy_deploy_timeouts number of legacy_deploy fetch requests that timed out +# TYPE legacy_deploy_timeouts counter +legacy_deploy_timeouts 0 +# HELP lowest_available_block_height lowest height of the available block range (the highest contiguous chain of complete blocks) +# TYPE lowest_available_block_height gauge +lowest_available_block_height 0 +# HELP mem_address_gossiper address_gossiper memory usage in bytes +# TYPE mem_address_gossiper gauge +mem_address_gossiper 0 +# HELP mem_block_accumulator block accumulator memory usage in bytes +# TYPE mem_block_accumulator gauge +mem_block_accumulator 0 +# HELP mem_block_gossiper block gossiper memory usage in bytes +# TYPE mem_block_gossiper gauge +mem_block_gossiper 0 +# HELP mem_block_synchronizer block synchronizer memory usage in bytes +# TYPE mem_block_synchronizer gauge +mem_block_synchronizer 0 +# HELP mem_block_validator block validator memory usage in bytes +# TYPE mem_block_validator gauge +mem_block_validator 0 +# HELP mem_consensus consensus memory usage in bytes +# TYPE mem_consensus gauge +mem_consensus 0 +# HELP mem_contract_runtime contract runtime memory usage in bytes +# TYPE mem_contract_runtime gauge +mem_contract_runtime 0 +# HELP mem_deploy_acceptor deploy acceptor memory usage in bytes +# TYPE mem_deploy_acceptor gauge +mem_deploy_acceptor 0 +# HELP mem_deploy_buffer deploy buffer memory usage in bytes +# TYPE mem_deploy_buffer gauge +mem_deploy_buffer 0 +# HELP mem_deploy_gossiper deploy gossiper memory usage in bytes +# TYPE mem_deploy_gossiper gauge +mem_deploy_gossiper 0 +# HELP mem_diagnostics_port diagnostics port memory usage in bytes +# TYPE mem_diagnostics_port gauge +mem_diagnostics_port 0 +# HELP mem_estimator_runtime_s time in seconds to estimate memory usage +# TYPE mem_estimator_runtime_s histogram +mem_estimator_runtime_s_bucket{le="0.000000004"} 0 +mem_estimator_runtime_s_bucket{le="0.000000008"} 0 +mem_estimator_runtime_s_bucket{le="0.000000016"} 0 +mem_estimator_runtime_s_bucket{le="0.000000032"} 0 +mem_estimator_runtime_s_bucket{le="0.000000064"} 0 +mem_estimator_runtime_s_bucket{le="0.000000128"} 0 +mem_estimator_runtime_s_bucket{le="0.000000256"} 0 +mem_estimator_runtime_s_bucket{le="0.000000512"} 0 +mem_estimator_runtime_s_bucket{le="0.000001024"} 0 +mem_estimator_runtime_s_bucket{le="0.000002048"} 0 +mem_estimator_runtime_s_bucket{le="0.000004096"} 0 +mem_estimator_runtime_s_bucket{le="0.000008192"} 0 +mem_estimator_runtime_s_bucket{le="0.000016384"} 0 +mem_estimator_runtime_s_bucket{le="0.000032768"} 0 +mem_estimator_runtime_s_bucket{le="0.000065536"} 0 +mem_estimator_runtime_s_bucket{le="0.000131072"} 0 +mem_estimator_runtime_s_bucket{le="0.000262144"} 0 +mem_estimator_runtime_s_bucket{le="0.000524288"} 0 +mem_estimator_runtime_s_bucket{le="0.001048576"} 0 +mem_estimator_runtime_s_bucket{le="0.002097152"} 0 +mem_estimator_runtime_s_bucket{le="0.004194304"} 0 +mem_estimator_runtime_s_bucket{le="0.008388608"} 0 +mem_estimator_runtime_s_bucket{le="0.016777216"} 0 +mem_estimator_runtime_s_bucket{le="0.033554432"} 0 +mem_estimator_runtime_s_bucket{le="0.067108864"} 0 +mem_estimator_runtime_s_bucket{le="0.134217728"} 0 +mem_estimator_runtime_s_bucket{le="0.268435456"} 0 +mem_estimator_runtime_s_bucket{le="0.536870912"} 0 +mem_estimator_runtime_s_bucket{le="1.073741824"} 0 +mem_estimator_runtime_s_bucket{le="2.147483648"} 0 +mem_estimator_runtime_s_bucket{le="4.294967296"} 0 +mem_estimator_runtime_s_bucket{le="8.589934592"} 0 +mem_estimator_runtime_s_bucket{le="+Inf"} 0 +mem_estimator_runtime_s_sum 0 +mem_estimator_runtime_s_count 0 +# HELP mem_event_stream_server event stream server memory usage in bytes +# TYPE mem_event_stream_server gauge +mem_event_stream_server 0 +# HELP mem_fetchers combined fetcher memory usage in bytes +# TYPE mem_fetchers gauge +mem_fetchers 0 +# HELP mem_finality_signature_gossiper finality signature gossiper memory usage in bytes +# TYPE mem_finality_signature_gossiper gauge +mem_finality_signature_gossiper 0 +# HELP mem_metrics metrics memory usage in bytes +# TYPE mem_metrics gauge +mem_metrics 0 +# HELP mem_net network memory usage in bytes +# TYPE mem_net gauge +mem_net 0 +# HELP mem_rest_server rest server memory usage in bytes +# TYPE mem_rest_server gauge +mem_rest_server 0 +# HELP mem_rpc_server rpc server memory usage in bytes +# TYPE mem_rpc_server gauge +mem_rpc_server 0 +# HELP mem_storage storage memory usage in bytes +# TYPE mem_storage gauge +mem_storage 0 +# HELP mem_sync_leaper sync leaper memory usage in bytes +# TYPE mem_sync_leaper gauge +mem_sync_leaper 0 +# HELP mem_total total memory usage in bytes +# TYPE mem_total gauge +mem_total 0 +# HELP mem_upgrade_watcher upgrade watcher memory usage in bytes +# TYPE mem_upgrade_watcher gauge +mem_upgrade_watcher 0 +# HELP net_broadcast_requests number of broadcasting requests +# TYPE net_broadcast_requests counter +net_broadcast_requests 0 +# HELP net_direct_message_requests number of requests to send a message directly to a peer +# TYPE net_direct_message_requests counter +net_direct_message_requests 0 +# HELP net_in_bytes_address_gossip volume in bytes of incoming messages with address gossiper payload +# TYPE net_in_bytes_address_gossip counter +net_in_bytes_address_gossip 0 +# HELP net_in_bytes_block_gossip volume in bytes of incoming messages with block gossiper payload +# TYPE net_in_bytes_block_gossip counter +net_in_bytes_block_gossip 0 +# HELP net_in_bytes_block_transfer volume in bytes of incoming messages with block request/response payload +# TYPE net_in_bytes_block_transfer counter +net_in_bytes_block_transfer 0 +# HELP net_in_bytes_consensus volume in bytes of incoming messages with consensus payload +# TYPE net_in_bytes_consensus counter +net_in_bytes_consensus 0 +# HELP net_in_bytes_deploy_gossip volume in bytes of incoming messages with deploy gossiper payload +# TYPE net_in_bytes_deploy_gossip counter +net_in_bytes_deploy_gossip 0 +# HELP net_in_bytes_deploy_transfer volume in bytes of incoming messages with deploy request/response payload +# TYPE net_in_bytes_deploy_transfer counter +net_in_bytes_deploy_transfer 0 +# HELP net_in_bytes_finality_signature_gossip volume in bytes of incoming messages with finality signature gossiper payload +# TYPE net_in_bytes_finality_signature_gossip counter +net_in_bytes_finality_signature_gossip 0 +# HELP net_in_bytes_other volume in bytes of incoming messages with other payload +# TYPE net_in_bytes_other counter +net_in_bytes_other 0 +# HELP net_in_bytes_protocol volume in bytes of incoming messages that are protocol overhead +# TYPE net_in_bytes_protocol counter +net_in_bytes_protocol 0 +# HELP net_in_bytes_trie_transfer volume in bytes of incoming messages with trie payloads +# TYPE net_in_bytes_trie_transfer counter +net_in_bytes_trie_transfer 0 +# HELP net_in_count_address_gossip count of incoming messages with address gossiper payload +# TYPE net_in_count_address_gossip counter +net_in_count_address_gossip 0 +# HELP net_in_count_block_gossip count of incoming messages with block gossiper payload +# TYPE net_in_count_block_gossip counter +net_in_count_block_gossip 0 +# HELP net_in_count_block_transfer count of incoming messages with block request/response payload +# TYPE net_in_count_block_transfer counter +net_in_count_block_transfer 0 +# HELP net_in_count_consensus count of incoming messages with consensus payload +# TYPE net_in_count_consensus counter +net_in_count_consensus 0 +# HELP net_in_count_deploy_gossip count of incoming messages with deploy gossiper payload +# TYPE net_in_count_deploy_gossip counter +net_in_count_deploy_gossip 0 +# HELP net_in_count_deploy_transfer count of incoming messages with deploy request/response payload +# TYPE net_in_count_deploy_transfer counter +net_in_count_deploy_transfer 0 +# HELP net_in_count_finality_signature_gossip count of incoming messages with finality signature gossiper payload +# TYPE net_in_count_finality_signature_gossip counter +net_in_count_finality_signature_gossip 0 +# HELP net_in_count_other count of incoming messages with other payload +# TYPE net_in_count_other counter +net_in_count_other 0 +# HELP net_in_count_protocol count of incoming messages that are protocol overhead +# TYPE net_in_count_protocol counter +net_in_count_protocol 0 +# HELP net_in_count_trie_transfer count of incoming messages with trie payloads +# TYPE net_in_count_trie_transfer counter +net_in_count_trie_transfer 0 +# HELP net_out_bytes_address_gossip volume in bytes of outgoing messages with address gossiper payload +# TYPE net_out_bytes_address_gossip counter +net_out_bytes_address_gossip 0 +# HELP net_out_bytes_block_gossip volume in bytes of outgoing messages with block gossiper payload +# TYPE net_out_bytes_block_gossip counter +net_out_bytes_block_gossip 0 +# HELP net_out_bytes_block_transfer volume in bytes of outgoing messages with block request/response payload +# TYPE net_out_bytes_block_transfer counter +net_out_bytes_block_transfer 0 +# HELP net_out_bytes_consensus volume in bytes of outgoing messages with consensus payload +# TYPE net_out_bytes_consensus counter +net_out_bytes_consensus 0 +# HELP net_out_bytes_deploy_gossip volume in bytes of outgoing messages with deploy gossiper payload +# TYPE net_out_bytes_deploy_gossip counter +net_out_bytes_deploy_gossip 0 +# HELP net_out_bytes_deploy_transfer volume in bytes of outgoing messages with deploy request/response payload +# TYPE net_out_bytes_deploy_transfer counter +net_out_bytes_deploy_transfer 0 +# HELP net_out_bytes_finality_signature_gossip volume in bytes of outgoing messages with finality signature gossiper payload +# TYPE net_out_bytes_finality_signature_gossip counter +net_out_bytes_finality_signature_gossip 0 +# HELP net_out_bytes_other volume in bytes of outgoing messages with other payload +# TYPE net_out_bytes_other counter +net_out_bytes_other 0 +# HELP net_out_bytes_protocol volume in bytes of outgoing messages that are protocol overhead +# TYPE net_out_bytes_protocol counter +net_out_bytes_protocol 0 +# HELP net_out_bytes_trie_transfer volume in bytes of outgoing messages with trie payloads +# TYPE net_out_bytes_trie_transfer counter +net_out_bytes_trie_transfer 0 +# HELP net_out_count_address_gossip count of outgoing messages with address gossiper payload +# TYPE net_out_count_address_gossip counter +net_out_count_address_gossip 0 +# HELP net_out_count_block_gossip count of outgoing messages with block gossiper payload +# TYPE net_out_count_block_gossip counter +net_out_count_block_gossip 0 +# HELP net_out_count_block_transfer count of outgoing messages with block request/response payload +# TYPE net_out_count_block_transfer counter +net_out_count_block_transfer 0 +# HELP net_out_count_consensus count of outgoing messages with consensus payload +# TYPE net_out_count_consensus counter +net_out_count_consensus 0 +# HELP net_out_count_deploy_gossip count of outgoing messages with deploy gossiper payload +# TYPE net_out_count_deploy_gossip counter +net_out_count_deploy_gossip 0 +# HELP net_out_count_deploy_transfer count of outgoing messages with deploy request/response payload +# TYPE net_out_count_deploy_transfer counter +net_out_count_deploy_transfer 0 +# HELP net_out_count_finality_signature_gossip count of outgoing messages with finality signature gossiper payload +# TYPE net_out_count_finality_signature_gossip counter +net_out_count_finality_signature_gossip 0 +# HELP net_out_count_other count of outgoing messages with other payload +# TYPE net_out_count_other counter +net_out_count_other 0 +# HELP net_out_count_protocol count of outgoing messages that are protocol overhead +# TYPE net_out_count_protocol counter +net_out_count_protocol 0 +# HELP net_out_count_trie_transfer count of outgoing messages with trie payloads +# TYPE net_out_count_trie_transfer counter +net_out_count_trie_transfer 0 +# HELP net_queued_direct_messages number of messages waiting to be sent out +# TYPE net_queued_direct_messages gauge +net_queued_direct_messages 0 +# HELP out_state_blocked number of connections in the blocked state +# TYPE out_state_blocked gauge +out_state_blocked 2 +# HELP out_state_connected number of connections in the connected state +# TYPE out_state_connected gauge +out_state_connected 0 +# HELP out_state_connecting number of connections in the connecting state +# TYPE out_state_connecting gauge +out_state_connecting 0 +# HELP out_state_loopback number of connections in the loopback state +# TYPE out_state_loopback gauge +out_state_loopback 1 +# HELP out_state_waiting number of connections in the waiting state +# TYPE out_state_waiting gauge +out_state_waiting 0 +# HELP peers number of connected peers +# TYPE peers gauge +peers 0 +# HELP requests_for_trie_accepted number of trie requests accepted for processing +# TYPE requests_for_trie_accepted counter +requests_for_trie_accepted 0 +# HELP requests_for_trie_finished number of trie requests finished, successful or not +# TYPE requests_for_trie_finished counter +requests_for_trie_finished 0 +# HELP runner_events running total count of events handled by this reactor +# TYPE runner_events counter +runner_events 317 +# HELP scheduler_queue_api_count current number of events in the reactor api queue +# TYPE scheduler_queue_api_count gauge +scheduler_queue_api_count 0 +# HELP scheduler_queue_consensus_count current number of events in the reactor consensus queue +# TYPE scheduler_queue_consensus_count gauge +scheduler_queue_consensus_count 0 +# HELP scheduler_queue_contract_runtime_count current number of events in the reactor contract_runtime queue +# TYPE scheduler_queue_contract_runtime_count gauge +scheduler_queue_contract_runtime_count 0 +# HELP scheduler_queue_control_count current number of events in the reactor control queue +# TYPE scheduler_queue_control_count gauge +scheduler_queue_control_count 0 +# HELP scheduler_queue_fetch_count current number of events in the reactor fetch queue +# TYPE scheduler_queue_fetch_count gauge +scheduler_queue_fetch_count 0 +# HELP scheduler_queue_finality_signature_count current number of events in the reactor finality_signature queue +# TYPE scheduler_queue_finality_signature_count gauge +scheduler_queue_finality_signature_count 0 +# HELP scheduler_queue_from_storage_count current number of events in the reactor from_storage queue +# TYPE scheduler_queue_from_storage_count gauge +scheduler_queue_from_storage_count 0 +# HELP scheduler_queue_gossip_count current number of events in the reactor gossip queue +# TYPE scheduler_queue_gossip_count gauge +scheduler_queue_gossip_count 0 +# HELP scheduler_queue_network_count current number of events in the reactor network queue +# TYPE scheduler_queue_network_count gauge +scheduler_queue_network_count 0 +# HELP scheduler_queue_network_demands_count current number of events in the reactor network_demands queue +# TYPE scheduler_queue_network_demands_count gauge +scheduler_queue_network_demands_count 0 +# HELP scheduler_queue_network_incoming_count current number of events in the reactor network_incoming queue +# TYPE scheduler_queue_network_incoming_count gauge +scheduler_queue_network_incoming_count 0 +# HELP scheduler_queue_network_info_count current number of events in the reactor network_info queue +# TYPE scheduler_queue_network_info_count gauge +scheduler_queue_network_info_count 0 +# HELP scheduler_queue_network_low_priority_count current number of events in the reactor network_low_priority queue +# TYPE scheduler_queue_network_low_priority_count gauge +scheduler_queue_network_low_priority_count 0 +# HELP scheduler_queue_regular_count current number of events in the reactor regular queue +# TYPE scheduler_queue_regular_count gauge +scheduler_queue_regular_count 0 +# HELP scheduler_queue_sync_global_state_count current number of events in the reactor sync_global_state queue +# TYPE scheduler_queue_sync_global_state_count gauge +scheduler_queue_sync_global_state_count 0 +# HELP scheduler_queue_to_storage_count current number of events in the reactor to_storage queue +# TYPE scheduler_queue_to_storage_count gauge +scheduler_queue_to_storage_count 0 +# HELP scheduler_queue_total_count current total number of events in all reactor queues +# TYPE scheduler_queue_total_count gauge +scheduler_queue_total_count 0 +# HELP scheduler_queue_validation_count current number of events in the reactor validation queue +# TYPE scheduler_queue_validation_count gauge +scheduler_queue_validation_count 0 +# HELP sync_leap_cant_fetch_total number of sync leap requests that couldn't be fetched from peers +# TYPE sync_leap_cant_fetch_total counter +sync_leap_cant_fetch_total 0 +# HELP sync_leap_duration_seconds duration (in sec) to perform a successful sync leap +# TYPE sync_leap_duration_seconds histogram +sync_leap_duration_seconds_bucket{le="1"} 0 +sync_leap_duration_seconds_bucket{le="2"} 0 +sync_leap_duration_seconds_bucket{le="3"} 0 +sync_leap_duration_seconds_bucket{le="4"} 0 +sync_leap_duration_seconds_bucket{le="+Inf"} 0 +sync_leap_duration_seconds_sum 0 +sync_leap_duration_seconds_count 0 +# HELP sync_leap_fetched_from_peer_total number of successful sync leap responses that were received from peers +# TYPE sync_leap_fetched_from_peer_total counter +sync_leap_fetched_from_peer_total 0 +# HELP sync_leap_fetcher_fetch_total number of sync_leap_fetcher all fetch requests made +# TYPE sync_leap_fetcher_fetch_total counter +sync_leap_fetcher_fetch_total 0 +# HELP sync_leap_fetcher_found_in_storage number of fetch requests that found sync_leap_fetcher in local storage +# TYPE sync_leap_fetcher_found_in_storage counter +sync_leap_fetcher_found_in_storage 0 +# HELP sync_leap_fetcher_found_on_peer number of fetch requests that fetched sync_leap_fetcher from peer +# TYPE sync_leap_fetcher_found_on_peer counter +sync_leap_fetcher_found_on_peer 0 +# HELP sync_leap_fetcher_timeouts number of sync_leap_fetcher fetch requests that timed out +# TYPE sync_leap_fetcher_timeouts counter +sync_leap_fetcher_timeouts 0 +# HELP sync_leap_rejected_by_peer_total number of sync leap requests that were rejected by peers +# TYPE sync_leap_rejected_by_peer_total counter +sync_leap_rejected_by_peer_total 0 +# HELP time_of_last_block_payload timestamp of the most recently accepted block payload +# TYPE time_of_last_block_payload gauge +time_of_last_block_payload 0 +# HELP time_of_last_finalized_block timestamp of the most recently finalized block +# TYPE time_of_last_finalized_block gauge +time_of_last_finalized_block 0 +# HELP total_ram_bytes total system ram in bytes +# TYPE total_ram_bytes gauge +total_ram_bytes 0 +# HELP trie_or_chunk_fetch_total number of trie_or_chunk all fetch requests made +# TYPE trie_or_chunk_fetch_total counter +trie_or_chunk_fetch_total 0 +# HELP trie_or_chunk_found_in_storage number of fetch requests that found trie_or_chunk in local storage +# TYPE trie_or_chunk_found_in_storage counter +trie_or_chunk_found_in_storage 0 +# HELP trie_or_chunk_found_on_peer number of fetch requests that fetched trie_or_chunk from peer +# TYPE trie_or_chunk_found_on_peer counter +trie_or_chunk_found_on_peer 0 +# HELP trie_or_chunk_timeouts number of trie_or_chunk fetch requests that timed out +# TYPE trie_or_chunk_timeouts counter +trie_or_chunk_timeouts 0 From 41b7913a51263c6bf0d9a0e00a5306a3268c77f7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 6 Apr 2023 17:16:30 +0200 Subject: [PATCH 358/735] Add a metrics parsing function --- node/src/utils.rs | 51 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 49 insertions(+), 2 deletions(-) diff --git a/node/src/utils.rs b/node/src/utils.rs index 209791d2be..8cfde9ef6a 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -16,6 +16,7 @@ pub mod work_queue; use std::{ any, cell::RefCell, + collections::BTreeSet, fmt::{self, Debug, Display, Formatter}, fs::File, io::{self, Write}, @@ -490,13 +491,29 @@ impl Peel for Either<(A, G), (B, F)> { } } +/// Extracts the names of all metrics contained in a prometheus-formatted metrics snapshot. +fn extract_metric_names<'a>(raw: &'a str) -> BTreeSet<&'a str> { + raw.lines() + .filter_map(|line| { + let trimmed = line.trim(); + if trimmed.is_empty() || trimmed.starts_with('#') { + None + } else { + let (full_id, _) = trimmed.split_once(' ')?; + let id = full_id.split_once('{').map(|v| v.0).unwrap_or(full_id); + Some(id) + } + }) + .collect() +} + #[cfg(test)] mod tests { - use std::{sync::Arc, time::Duration}; + use std::{collections::BTreeSet, sync::Arc, time::Duration}; use prometheus::IntGauge; - use super::{wait_for_arc_drop, xor, TokenizedCount}; + use super::{extract_metric_names, wait_for_arc_drop, xor, TokenizedCount}; #[test] fn xor_works() { @@ -571,4 +588,34 @@ mod tests { drop(ticket1); assert_eq!(gauge.get(), 2); } + + #[test] + fn can_parse_metrics() { + let sample = r#" + chain_height 0 + # HELP consensus_current_era the current era in consensus + # TYPE consensus_current_era gauge + consensus_current_era 0 + # HELP consumed_ram_bytes total consumed ram in bytes + # TYPE consumed_ram_bytes gauge + consumed_ram_bytes 0 + # HELP contract_runtime_apply_commit time in seconds to commit the execution effects of a contract + # TYPE contract_runtime_apply_commit histogram + contract_runtime_apply_commit_bucket{le="0.01"} 0 + contract_runtime_apply_commit_bucket{le="0.02"} 0 + contract_runtime_apply_commit_bucket{le="0.04"} 0 + contract_runtime_apply_commit_bucket{le="0.08"} 0 + contract_runtime_apply_commit_bucket{le="0.16"} 0 + "#; + + let extracted = extract_metric_names(sample); + + let mut expected = BTreeSet::new(); + expected.insert("chain_height"); + expected.insert("consensus_current_era"); + expected.insert("consumed_ram_bytes"); + expected.insert("contract_runtime_apply_commit_bucket"); + + assert_eq!(extracted, expected); + } } From 800f65a651ef9aff8029e4da734c4cd1fd7c1106 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Apr 2023 14:36:26 +0200 Subject: [PATCH 359/735] Add a `crank_until_stopped` method to the testing network --- node/src/testing/network.rs | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index ff0c2da95a..90660e731d 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -4,7 +4,10 @@ use std::{ collections::{hash_map::Entry, HashMap}, fmt::Debug, mem, - sync::Arc, + sync::{ + atomic::{AtomicBool, Ordering}, + Arc, + }, time::Duration, }; @@ -414,6 +417,38 @@ where .unwrap_or_else(|_| panic!("network did not settle on condition within {:?}", within)) } + /// Starts a background process that will crank all nodes until stopped. + /// + /// Returns a future that will, once polled, stop all cranking and return the network and the + /// the random number generator. Note that the stop command will be sent as soon as the returned + /// future is polled (awaited), but no sooner. + pub(crate) async fn crank_until_stopped( + mut self, + mut rng: TestRng, + ) -> impl futures::Future + where + R: Send + 'static, + { + let stop = Arc::new(AtomicBool::new(false)); + let handle = tokio::spawn({ + let stop = stop.clone(); + async move { + while !stop.load(Ordering::Relaxed) { + if self.crank_all(&mut rng).await == 0 { + time::sleep(POLL_INTERVAL).await; + }; + } + (self, rng) + } + }); + + async move { + // Trigger the background process stop. + stop.store(true, Ordering::Relaxed); + handle.await.expect("failed to join background crank") + } + } + async fn settle_on_exit_indefinitely(&mut self, rng: &mut TestRng, expected: ExitCode) { let mut exited_as_expected = 0; loop { From 2ff112cec216d4e883d992bd967ca0a57ac64a3d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Apr 2023 14:36:51 +0200 Subject: [PATCH 360/735] Move captured 1.5 metrics to `testing` module --- metrics-1.5.txt => node/src/testing/metrics-1.5.txt | 0 1 file changed, 0 insertions(+), 0 deletions(-) rename metrics-1.5.txt => node/src/testing/metrics-1.5.txt (100%) diff --git a/metrics-1.5.txt b/node/src/testing/metrics-1.5.txt similarity index 100% rename from metrics-1.5.txt rename to node/src/testing/metrics-1.5.txt From 61e821c06e4b720b95cfa74f8b6d13e62c3beddf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Apr 2023 15:22:35 +0200 Subject: [PATCH 361/735] `crank_until_stopped` does not need to be an `async` function --- node/src/testing/network.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index 90660e731d..c4c667cba3 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -422,7 +422,7 @@ where /// Returns a future that will, once polled, stop all cranking and return the network and the /// the random number generator. Note that the stop command will be sent as soon as the returned /// future is polled (awaited), but no sooner. - pub(crate) async fn crank_until_stopped( + pub(crate) fn crank_until_stopped( mut self, mut rng: TestRng, ) -> impl futures::Future From 4457fa141b71c38fa98a164d93c4db2548139462 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Apr 2023 15:27:13 +0200 Subject: [PATCH 362/735] Make storage `Send` again by replacing `Rc` with `Arc` --- node/src/components/storage.rs | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/node/src/components/storage.rs b/node/src/components/storage.rs index 38b8ebc770..537d1b9f03 100644 --- a/node/src/components/storage.rs +++ b/node/src/components/storage.rs @@ -49,7 +49,6 @@ use std::{ io::ErrorKind, mem, path::{Path, PathBuf}, - rc::Rc, sync::Arc, }; @@ -164,7 +163,7 @@ pub struct Storage { root: PathBuf, /// Environment holding LMDB databases. #[data_size(skip)] - env: Rc, + env: Arc, /// The block header database. #[data_size(skip)] block_header_db: Database, @@ -470,7 +469,7 @@ impl Storage { let mut component = Self { root, - env: Rc::new(env), + env: Arc::new(env), block_header_db, block_body_db, block_metadata_db, @@ -769,7 +768,7 @@ impl Storage { approvals_hashes, responder, } => { - let env = Rc::clone(&self.env); + let env = Arc::clone(&self.env); let mut txn = env.begin_rw_txn()?; let result = self.write_approvals_hashes(&mut txn, &approvals_hashes)?; txn.commit()?; @@ -897,7 +896,7 @@ impl Storage { execution_results, responder, } => { - let env = Rc::clone(&self.env); + let env = Arc::clone(&self.env); let mut txn = env.begin_rw_txn()?; self.write_execution_results(&mut txn, &block_hash, execution_results)?; txn.commit()?; @@ -1220,7 +1219,7 @@ impl Storage { approvals_hashes: &ApprovalsHashes, execution_results: HashMap, ) -> Result { - let env = Rc::clone(&self.env); + let env = Arc::clone(&self.env); let mut txn = env.begin_rw_txn()?; let wrote = self.write_validated_block(&mut txn, block)?; if !wrote { @@ -1383,7 +1382,7 @@ impl Storage { pub fn write_block(&mut self, block: &Block) -> Result { // Validate the block prior to inserting it into the database block.verify()?; - let env = Rc::clone(&self.env); + let env = Arc::clone(&self.env); let mut txn = env.begin_rw_txn()?; let wrote = self.write_validated_block(&mut txn, block)?; if wrote { @@ -1401,7 +1400,7 @@ impl Storage { pub fn write_complete_block(&mut self, block: &Block) -> Result { // Validate the block prior to inserting it into the database block.verify()?; - let env = Rc::clone(&self.env); + let env = Arc::clone(&self.env); let mut txn = env.begin_rw_txn()?; let wrote = self.write_validated_block(&mut txn, block)?; if wrote { From e16db9357b2b7677b65b01b9ab13403810339ef6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Fri, 14 Apr 2023 17:31:42 +0200 Subject: [PATCH 363/735] Fix typo in docs of node/src/utils/registered_metric.rs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-authored-by: Rafał Chabowski <88321181+rafal-ch@users.noreply.github.com> --- node/src/utils/registered_metric.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/utils/registered_metric.rs b/node/src/utils/registered_metric.rs index 6a6e726b0a..8a5cb7f448 100644 --- a/node/src/utils/registered_metric.rs +++ b/node/src/utils/registered_metric.rs @@ -121,7 +121,7 @@ where /// Extension trait for [`Registry`] instances. pub(crate) trait RegistryExt { - /// Creates a new [`IntCounter`] registered to this registry. + /// Creates a new [`Counter`] registered to this registry. fn new_counter, S2: Into>( &self, name: S1, From 2850e8a4e641911b7b4bb2a21fc83f5bfdf9fa34 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 21 Apr 2023 13:46:36 +0200 Subject: [PATCH 364/735] juliet: Added empty `juliet` crate --- Cargo.lock | 4 ++++ Cargo.toml | 1 + juliet/Cargo.toml | 7 +++++++ juliet/src/lib.rs | 14 ++++++++++++++ 4 files changed, 26 insertions(+) create mode 100644 juliet/Cargo.toml create mode 100644 juliet/src/lib.rs diff --git a/Cargo.lock b/Cargo.lock index 6940f67b5f..45a7072a8e 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2458,6 +2458,10 @@ dependencies = [ "wasm-bindgen", ] +[[package]] +name = "juliet" +version = "0.1.0" + [[package]] name = "k256" version = "0.7.3" diff --git a/Cargo.toml b/Cargo.toml index 3b0b7fba1a..d89d9ec7a3 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -5,6 +5,7 @@ members = [ "execution_engine_testing/test_support", "execution_engine_testing/tests", "hashing", + "juliet", "json_rpc", "muxink", "node", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml new file mode 100644 index 0000000000..47de829cfd --- /dev/null +++ b/juliet/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "juliet" +version = "0.1.0" +edition = "2021" +authors = [ "Marc Brinkmann " ] + +[dependencies] diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs new file mode 100644 index 0000000000..7d12d9af81 --- /dev/null +++ b/juliet/src/lib.rs @@ -0,0 +1,14 @@ +pub fn add(left: usize, right: usize) -> usize { + left + right +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn it_works() { + let result = add(2, 2); + assert_eq!(result, 4); + } +} From 13a6cfea7b4fb1cd94e960b62112b4ed0f436e7e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 21 Apr 2023 16:30:39 +0200 Subject: [PATCH 365/735] juliet: Initial draft for header implementation --- Cargo.lock | 3 ++ juliet/Cargo.toml | 1 + juliet/src/lib.rs | 88 +++++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 86 insertions(+), 6 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 45a7072a8e..c2cc1c6e8c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2461,6 +2461,9 @@ dependencies = [ [[package]] name = "juliet" version = "0.1.0" +dependencies = [ + "bytes", +] [[package]] name = "k256" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 47de829cfd..e0b8c5a4b7 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,3 +5,4 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] +bytes = "1.4.0" diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 7d12d9af81..b15ea1a912 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,14 +1,90 @@ -pub fn add(left: usize, right: usize) -> usize { - left + right +use std::{fmt::Debug, mem}; + +use bytes::Buf; + +const HEADER_SIZE: usize = 4; + +enum ReceiveOutcome { + MissingAtLeast(usize), +} + +struct Receiver { + current_header: Option

, +} + +#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[repr(C, packed)] +struct Header { + id: u16, + channel: u8, + flags: u8, +} + +impl Header { + #[inline(always)] + fn is_request(&self) -> bool { + todo!() + } +} + +impl From<[u8; 4]> for Header { + fn from(value: [u8; 4]) -> Self { + // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. + Header { + id: u16::from_le_bytes(value[2..4].try_into().unwrap()), + channel: value[1], + flags: value[0], + } + } +} + +impl From
for [u8; 4] { + #[inline(always)] + fn from(header: Header) -> Self { + // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. + [ + header.flags, + header.channel, + header.id.to_le_bytes()[0], + header.id.to_le_bytes()[1], + ] + } +} + +impl Receiver { + fn input(&mut self, buf: &mut B) -> ReceiveOutcome { + let header = match self.current_header { + None => { + // Check if we have enough to read a header. + if buf.remaining() < HEADER_SIZE { + return ReceiveOutcome::MissingAtLeast(HEADER_SIZE - buf.remaining()); + } + + // Grab the header and continue. + self.current_header + .insert(Header::from(buf.get_u32_le().to_le_bytes())) + } + Some(ref header) => header, + }; + + todo!() + } } #[cfg(test)] mod tests { - use super::*; + use crate::Header; #[test] - fn it_works() { - let result = add(2, 2); - assert_eq!(result, 4); + fn known_headers() { + let input = [0x12, 0x34, 0x56, 0x78]; + let expected = Header { + flags: 0x12, // 18 + channel: 0x34, // 52 + id: 0x7856, // 30806 + }; + + assert_eq!(Header::from(input), expected); + assert_eq!(<[u8; 4]>::from(expected), input); } } From da12fbee732250995d880b22c28d4b9185cd1885 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 21 Apr 2023 16:47:59 +0200 Subject: [PATCH 366/735] juliet: Setup `flags` with `bitflags` --- Cargo.lock | 35 +++++++++++++++++------------ juliet/Cargo.toml | 1 + juliet/src/lib.rs | 56 ++++++++++++++++++++++++++++++++++++++++++----- 3 files changed, 72 insertions(+), 20 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index c2cc1c6e8c..16ce1b4842 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -261,6 +261,12 @@ version = "1.3.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" +[[package]] +name = "bitflags" +version = "2.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c70beb79cbb5ce9c4f8e20849978f34225931f665bb49efa6982875a4d5facb3" + [[package]] name = "bitvec" version = "0.18.5" @@ -620,7 +626,7 @@ dependencies = [ "base16", "base64 0.13.1", "bincode", - "bitflags", + "bitflags 1.3.2", "blake2", "criterion", "datasize", @@ -665,7 +671,7 @@ checksum = "a13e82a13d1784104fd021a38da56c69da94e84b26b03c2cf3d8da3895a16c8c" dependencies = [ "base16", "base64 0.13.1", - "bitflags", + "bitflags 1.3.2", "blake2", "ed25519-dalek", "hex", @@ -743,7 +749,7 @@ checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c" dependencies = [ "ansi_term", "atty", - "bitflags", + "bitflags 1.3.2", "strsim 0.8.0", "textwrap 0.11.0", "unicode-width", @@ -757,7 +763,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5" dependencies = [ "atty", - "bitflags", + "bitflags 1.3.2", "clap_derive", "clap_lex", "indexmap", @@ -2038,7 +2044,7 @@ version = "0.16.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ccf7f68c2995f392c49fffb4f95ae2c873297830eb25c6bc4c114ce8f4562acc" dependencies = [ - "bitflags", + "bitflags 1.3.2", "libc", "libgit2-sys", "log", @@ -2131,7 +2137,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f3e372db8e5c0d213e0cd0b9be18be2aca3d44cf2fe30a9d46a65581cd454584" dependencies = [ "base64 0.13.1", - "bitflags", + "bitflags 1.3.2", "bytes", "headers-core", "http", @@ -2462,6 +2468,7 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ + "bitflags 2.1.0", "bytes", ] @@ -2567,7 +2574,7 @@ version = "0.14.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "447a296f7aca299cfbb50f4e4f3d49451549af655fb7215d7f8c0c3d64bad42b" dependencies = [ - "bitflags", + "bitflags 1.3.2", "byteorder", "libc", "lmdb-rkv-sys", @@ -3018,7 +3025,7 @@ version = "0.10.48" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "518915b97df115dd36109bfa429a48b8f737bd05508cf9588977b599648926d2" dependencies = [ - "bitflags", + "bitflags 1.3.2", "cfg-if 1.0.0", "foreign-types", "libc", @@ -3394,7 +3401,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "29f1b898011ce9595050a68e60f90bad083ff2987a695a42357134c8381fba70" dependencies = [ "bit-set", - "bitflags", + "bitflags 1.3.2", "byteorder", "lazy_static", "num-traits", @@ -3442,7 +3449,7 @@ version = "0.8.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ffade02495f22453cd593159ea2f59827aae7f53fa8323f756799b670881dcf8" dependencies = [ - "bitflags", + "bitflags 1.3.2", "memchr", "unicase", ] @@ -3639,7 +3646,7 @@ version = "9.1.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1733f6f80c9c24268736a501cd00d41a9849b4faa7a9f9334c096e5d10553206" dependencies = [ - "bitflags", + "bitflags 1.3.2", ] [[package]] @@ -3686,7 +3693,7 @@ version = "0.2.16" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a" dependencies = [ - "bitflags", + "bitflags 1.3.2", ] [[package]] @@ -3949,7 +3956,7 @@ version = "0.36.11" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "db4165c9963ab29e422d6c26fbc1d37f15bace6b2810221f9d925023480fcf0e" dependencies = [ - "bitflags", + "bitflags 1.3.2", "errno", "io-lifetimes", "libc", @@ -4057,7 +4064,7 @@ version = "2.8.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a332be01508d814fed64bf28f798a146d73792121129962fdf335bb3c49a4254" dependencies = [ - "bitflags", + "bitflags 1.3.2", "core-foundation", "core-foundation-sys", "libc", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index e0b8c5a4b7..ea2c3e22fd 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,4 +5,5 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] +bitflags = "2.1.0" bytes = "1.4.0" diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index b15ea1a912..18988d4639 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,5 +1,6 @@ -use std::{fmt::Debug, mem}; +use std::fmt::Debug; +use bitflags::bitflags; use bytes::Buf; const HEADER_SIZE: usize = 4; @@ -17,23 +18,43 @@ struct Receiver { struct Header { id: u16, channel: u8, - flags: u8, + flags: HeaderFlags, +} + +bitflags! { + #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)] + struct HeaderFlags: u8 { + const RESPONSE = 0b00000001; + const ERROR = 0b00000010; + const CANCEL = 0b00000100; + } } impl Header { #[inline(always)] - fn is_request(&self) -> bool { - todo!() + fn is_response(&self) -> bool { + self.flags.contains(HeaderFlags::RESPONSE) + } + + #[inline(always)] + fn is_error(&self) -> bool { + self.flags.contains(HeaderFlags::ERROR) + } + + #[inline(always)] + fn is_cancellation(&self) -> bool { + self.flags.contains(HeaderFlags::CANCEL) } } impl From<[u8; 4]> for Header { fn from(value: [u8; 4]) -> Self { + let flags = HeaderFlags::from_bits_truncate(value[0]); // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. Header { id: u16::from_le_bytes(value[2..4].try_into().unwrap()), channel: value[1], - flags: value[0], + flags, } } } @@ -43,7 +64,7 @@ impl From
for [u8; 4] { fn from(header: Header) -> Self { // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. [ - header.flags, + header.flags.bits(), header.channel, header.id.to_le_bytes()[0], header.id.to_le_bytes()[1], @@ -67,6 +88,29 @@ impl Receiver { Some(ref header) => header, }; + match (*header).flags { + flags if flags.is_empty() => { + // A regular request. + todo!() + } + flags if flags == HeaderFlags::RESPONSE => { + // A regular response being sent back. + todo!() + } + flags if flags == HeaderFlags::CANCEL => { + // Request cancellcation. + } + flags if flags == HeaderFlags::CANCEL | HeaderFlags::RESPONSE => { + // Response cancellcation. + } + flags if flags == HeaderFlags::ERROR => { + // Error. + } + flags => { + todo!("invalid flags error") + } + } + todo!() } } From 8c33b77214e4481ef79c4eca7030653144702ea7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 21 Apr 2023 17:09:34 +0200 Subject: [PATCH 367/735] juliet: Remove flags in favor of simple enum --- Cargo.lock | 35 ++++++++---------- juliet/Cargo.toml | 1 - juliet/src/lib.rs | 90 ++++++++++++++++++++--------------------------- 3 files changed, 52 insertions(+), 74 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 16ce1b4842..c2cc1c6e8c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -261,12 +261,6 @@ version = "1.3.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" -[[package]] -name = "bitflags" -version = "2.1.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c70beb79cbb5ce9c4f8e20849978f34225931f665bb49efa6982875a4d5facb3" - [[package]] name = "bitvec" version = "0.18.5" @@ -626,7 +620,7 @@ dependencies = [ "base16", "base64 0.13.1", "bincode", - "bitflags 1.3.2", + "bitflags", "blake2", "criterion", "datasize", @@ -671,7 +665,7 @@ checksum = "a13e82a13d1784104fd021a38da56c69da94e84b26b03c2cf3d8da3895a16c8c" dependencies = [ "base16", "base64 0.13.1", - "bitflags 1.3.2", + "bitflags", "blake2", "ed25519-dalek", "hex", @@ -749,7 +743,7 @@ checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c" dependencies = [ "ansi_term", "atty", - "bitflags 1.3.2", + "bitflags", "strsim 0.8.0", "textwrap 0.11.0", "unicode-width", @@ -763,7 +757,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5" dependencies = [ "atty", - "bitflags 1.3.2", + "bitflags", "clap_derive", "clap_lex", "indexmap", @@ -2044,7 +2038,7 @@ version = "0.16.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ccf7f68c2995f392c49fffb4f95ae2c873297830eb25c6bc4c114ce8f4562acc" dependencies = [ - "bitflags 1.3.2", + "bitflags", "libc", "libgit2-sys", "log", @@ -2137,7 +2131,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f3e372db8e5c0d213e0cd0b9be18be2aca3d44cf2fe30a9d46a65581cd454584" dependencies = [ "base64 0.13.1", - "bitflags 1.3.2", + "bitflags", "bytes", "headers-core", "http", @@ -2468,7 +2462,6 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ - "bitflags 2.1.0", "bytes", ] @@ -2574,7 +2567,7 @@ version = "0.14.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "447a296f7aca299cfbb50f4e4f3d49451549af655fb7215d7f8c0c3d64bad42b" dependencies = [ - "bitflags 1.3.2", + "bitflags", "byteorder", "libc", "lmdb-rkv-sys", @@ -3025,7 +3018,7 @@ version = "0.10.48" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "518915b97df115dd36109bfa429a48b8f737bd05508cf9588977b599648926d2" dependencies = [ - "bitflags 1.3.2", + "bitflags", "cfg-if 1.0.0", "foreign-types", "libc", @@ -3401,7 +3394,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "29f1b898011ce9595050a68e60f90bad083ff2987a695a42357134c8381fba70" dependencies = [ "bit-set", - "bitflags 1.3.2", + "bitflags", "byteorder", "lazy_static", "num-traits", @@ -3449,7 +3442,7 @@ version = "0.8.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ffade02495f22453cd593159ea2f59827aae7f53fa8323f756799b670881dcf8" dependencies = [ - "bitflags 1.3.2", + "bitflags", "memchr", "unicase", ] @@ -3646,7 +3639,7 @@ version = "9.1.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1733f6f80c9c24268736a501cd00d41a9849b4faa7a9f9334c096e5d10553206" dependencies = [ - "bitflags 1.3.2", + "bitflags", ] [[package]] @@ -3693,7 +3686,7 @@ version = "0.2.16" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a" dependencies = [ - "bitflags 1.3.2", + "bitflags", ] [[package]] @@ -3956,7 +3949,7 @@ version = "0.36.11" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "db4165c9963ab29e422d6c26fbc1d37f15bace6b2810221f9d925023480fcf0e" dependencies = [ - "bitflags 1.3.2", + "bitflags", "errno", "io-lifetimes", "libc", @@ -4064,7 +4057,7 @@ version = "2.8.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a332be01508d814fed64bf28f798a146d73792121129962fdf335bb3c49a4254" dependencies = [ - "bitflags 1.3.2", + "bitflags", "core-foundation", "core-foundation-sys", "libc", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index ea2c3e22fd..e0b8c5a4b7 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,5 +5,4 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] -bitflags = "2.1.0" bytes = "1.4.0" diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 18988d4639..ddf8d5446a 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -21,41 +21,42 @@ struct Header { flags: HeaderFlags, } -bitflags! { - #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)] - struct HeaderFlags: u8 { - const RESPONSE = 0b00000001; - const ERROR = 0b00000010; - const CANCEL = 0b00000100; - } +#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[repr(u8)] +enum HeaderFlags { + Request = 0b00000000, + Response = 0b00000001, + Error = 0b00000010, + RequestCancellation = 0b00000100, + ResponseCancellation = 0b00000101, } -impl Header { - #[inline(always)] - fn is_response(&self) -> bool { - self.flags.contains(HeaderFlags::RESPONSE) - } - - #[inline(always)] - fn is_error(&self) -> bool { - self.flags.contains(HeaderFlags::ERROR) - } - - #[inline(always)] - fn is_cancellation(&self) -> bool { - self.flags.contains(HeaderFlags::CANCEL) +impl TryFrom for HeaderFlags { + type Error = u8; + + fn try_from(value: u8) -> Result { + match value { + 0b00000000 => Ok(HeaderFlags::Request), + 0b00000001 => Ok(HeaderFlags::Response), + 0b00000010 => Ok(HeaderFlags::Error), + 0b00000100 => Ok(HeaderFlags::RequestCancellation), + 0b00000101 => Ok(HeaderFlags::ResponseCancellation), + _ => Err(value), + } } } -impl From<[u8; 4]> for Header { - fn from(value: [u8; 4]) -> Self { - let flags = HeaderFlags::from_bits_truncate(value[0]); +impl TryFrom<[u8; 4]> for Header { + type Error = u8; // Invalid flags. + + fn try_from(value: [u8; 4]) -> Result { + let flags = HeaderFlags::try_from(value[0])?; // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. - Header { + Ok(Header { id: u16::from_le_bytes(value[2..4].try_into().unwrap()), channel: value[1], flags, - } + }) } } @@ -64,7 +65,7 @@ impl From
for [u8; 4] { fn from(header: Header) -> Self { // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. [ - header.flags.bits(), + header.flags as u8, header.channel, header.id.to_le_bytes()[0], header.id.to_le_bytes()[1], @@ -82,36 +83,21 @@ impl Receiver { } // Grab the header and continue. - self.current_header - .insert(Header::from(buf.get_u32_le().to_le_bytes())) + self.current_header.insert( + Header::try_from(buf.get_u32_le().to_le_bytes()) + .expect("TODO: add error handling"), + ) } Some(ref header) => header, }; - match (*header).flags { - flags if flags.is_empty() => { - // A regular request. - todo!() - } - flags if flags == HeaderFlags::RESPONSE => { - // A regular response being sent back. - todo!() - } - flags if flags == HeaderFlags::CANCEL => { - // Request cancellcation. - } - flags if flags == HeaderFlags::CANCEL | HeaderFlags::RESPONSE => { - // Response cancellcation. - } - flags if flags == HeaderFlags::ERROR => { - // Error. - } - flags => { - todo!("invalid flags error") - } + match header.flags { + HeaderFlags::Request => todo!(), + HeaderFlags::Response => todo!(), + HeaderFlags::Error => todo!(), + HeaderFlags::RequestCancellation => todo!(), + HeaderFlags::ResponseCancellation => todo!(), } - - todo!() } } From 513b3013e37446caafe949a64139c8850e235a3d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 21 Apr 2023 17:16:32 +0200 Subject: [PATCH 368/735] juliet: Add support for zero-sized messages --- juliet/src/lib.rs | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index ddf8d5446a..1a46388ff6 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,6 +1,5 @@ use std::fmt::Debug; -use bitflags::bitflags; use bytes::Buf; const HEADER_SIZE: usize = 4; @@ -27,20 +26,26 @@ enum HeaderFlags { Request = 0b00000000, Response = 0b00000001, Error = 0b00000010, + ErrorWithMessage = 0b00001010, RequestCancellation = 0b00000100, ResponseCancellation = 0b00000101, + ZeroSizedRequest = 0b00001000, + ZeroSizedResponse = 0b00001001, } impl TryFrom for HeaderFlags { type Error = u8; - fn try_from(value: u8) -> Result { + fn try_from(value: u8) -> Result { match value { 0b00000000 => Ok(HeaderFlags::Request), 0b00000001 => Ok(HeaderFlags::Response), 0b00000010 => Ok(HeaderFlags::Error), + 0b00001010 => Ok(HeaderFlags::ErrorWithMessage), 0b00000100 => Ok(HeaderFlags::RequestCancellation), 0b00000101 => Ok(HeaderFlags::ResponseCancellation), + 0b00001000 => Ok(HeaderFlags::ZeroSizedRequest), + 0b00001001 => Ok(HeaderFlags::ZeroSizedResponse), _ => Err(value), } } @@ -95,8 +100,11 @@ impl Receiver { HeaderFlags::Request => todo!(), HeaderFlags::Response => todo!(), HeaderFlags::Error => todo!(), + HeaderFlags::ErrorWithMessage => todo!(), HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), + HeaderFlags::ZeroSizedRequest => todo!(), + HeaderFlags::ZeroSizedResponse => todo!(), } } } From 84c0a0926dc11750006b00e0b81b44e0721b5c1b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 21 Apr 2023 17:25:05 +0200 Subject: [PATCH 369/735] juliet: Add indication for frame bodies --- juliet/src/lib.rs | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 1a46388ff6..0a07ab80c8 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -23,14 +23,14 @@ struct Header { #[derive(Copy, Clone, Debug, Eq, PartialEq)] #[repr(u8)] enum HeaderFlags { - Request = 0b00000000, - Response = 0b00000001, - Error = 0b00000010, - ErrorWithMessage = 0b00001010, + ZeroSizedRequest = 0b00000000, + ZeroSizedResponse = 0b00000001, + Error = 0b00000011, RequestCancellation = 0b00000100, ResponseCancellation = 0b00000101, - ZeroSizedRequest = 0b00001000, - ZeroSizedResponse = 0b00001001, + RequestWithPayload = 0b00001000, + ResponseWithPayload = 0b00001001, + ErrorWithMessage = 0b00001010, } impl TryFrom for HeaderFlags { @@ -38,14 +38,14 @@ impl TryFrom for HeaderFlags { fn try_from(value: u8) -> Result { match value { - 0b00000000 => Ok(HeaderFlags::Request), - 0b00000001 => Ok(HeaderFlags::Response), - 0b00000010 => Ok(HeaderFlags::Error), - 0b00001010 => Ok(HeaderFlags::ErrorWithMessage), + 0b00000000 => Ok(HeaderFlags::ZeroSizedRequest), + 0b00000001 => Ok(HeaderFlags::ZeroSizedResponse), + 0b00000011 => Ok(HeaderFlags::Error), 0b00000100 => Ok(HeaderFlags::RequestCancellation), 0b00000101 => Ok(HeaderFlags::ResponseCancellation), - 0b00001000 => Ok(HeaderFlags::ZeroSizedRequest), - 0b00001001 => Ok(HeaderFlags::ZeroSizedResponse), + 0b00001000 => Ok(HeaderFlags::RequestWithPayload), + 0b00001001 => Ok(HeaderFlags::ResponseWithPayload), + 0b00001010 => Ok(HeaderFlags::ErrorWithMessage), _ => Err(value), } } @@ -97,8 +97,8 @@ impl Receiver { }; match header.flags { - HeaderFlags::Request => todo!(), - HeaderFlags::Response => todo!(), + HeaderFlags::RequestWithPayload => todo!(), + HeaderFlags::ResponseWithPayload => todo!(), HeaderFlags::Error => todo!(), HeaderFlags::ErrorWithMessage => todo!(), HeaderFlags::RequestCancellation => todo!(), @@ -111,18 +111,18 @@ impl Receiver { #[cfg(test)] mod tests { - use crate::Header; + use crate::{Header, HeaderFlags}; #[test] fn known_headers() { - let input = [0x12, 0x34, 0x56, 0x78]; + let input = [0x09, 0x34, 0x56, 0x78]; let expected = Header { - flags: 0x12, // 18 + flags: HeaderFlags::ResponseWithPayload, channel: 0x34, // 52 id: 0x7856, // 30806 }; - assert_eq!(Header::from(input), expected); + assert_eq!(Header::try_from(input).unwrap(), expected); assert_eq!(<[u8; 4]>::from(expected), input); } } From 0024dbba207d3cd4816bd546a66826c70affdf20 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 15:20:41 +0200 Subject: [PATCH 370/735] juliet: Add header parsing and partial varints --- juliet/src/lib.rs | 96 ++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 83 insertions(+), 13 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 0a07ab80c8..2c54c7109b 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,15 +1,32 @@ -use std::fmt::Debug; +use std::{ + collections::{BTreeMap, BTreeSet}, + fmt::Debug, +}; use bytes::Buf; +type ChannelId = u8; +type RequestId = u16; + const HEADER_SIZE: usize = 4; enum ReceiveOutcome { + /// We need at least the given amount of additional bytes before another item is produced. MissingAtLeast(usize), } -struct Receiver { +#[derive(Debug)] +struct Receiver { current_header: Option
, + payload_length: Option, + channels: [Channel; N], + request_limits: [usize; N], + segment_limit: u32, +} + +#[derive(Debug)] +struct Channel { + pending_requests: BTreeSet, } #[derive(Copy, Clone, Debug, Eq, PartialEq)] @@ -78,7 +95,7 @@ impl From
for [u8; 4] { } } -impl Receiver { +impl Receiver { fn input(&mut self, buf: &mut B) -> ReceiveOutcome { let header = match self.current_header { None => { @@ -87,28 +104,81 @@ impl Receiver { return ReceiveOutcome::MissingAtLeast(HEADER_SIZE - buf.remaining()); } - // Grab the header and continue. - self.current_header.insert( - Header::try_from(buf.get_u32_le().to_le_bytes()) - .expect("TODO: add error handling"), - ) + // Grab the header and advance. + let header = Header::try_from(buf.get_u32_le().to_le_bytes()) + .expect("TODO: add error handling, invalid error"); + + // Process a new header: + match header.flags { + HeaderFlags::RequestWithPayload => { + let channel_id = if (header.channel as usize) < N { + header.channel as usize + } else { + panic!("TODO: handle error (invalid channel)"); + }; + let channel = &mut self.channels[channel_id]; + let request_id = header.id; + + if channel.pending_requests.len() >= self.request_limits[channel_id] { + panic!("TODO: handle too many requests"); + } + + if channel.pending_requests.contains(&request_id) { + panic!("TODO: handle duplicate request"); + } + + // Now we know that we have received a valid new request, continue to + // process data as normal. + } + HeaderFlags::ResponseWithPayload => todo!(), + HeaderFlags::Error => todo!(), + HeaderFlags::ErrorWithMessage => todo!(), + HeaderFlags::RequestCancellation => todo!(), + HeaderFlags::ResponseCancellation => todo!(), + HeaderFlags::ZeroSizedRequest => todo!(), + HeaderFlags::ZeroSizedResponse => todo!(), + } + + self.current_header.insert(header) } Some(ref header) => header, }; match header.flags { - HeaderFlags::RequestWithPayload => todo!(), - HeaderFlags::ResponseWithPayload => todo!(), + HeaderFlags::ZeroSizedRequest => todo!(), + HeaderFlags::ZeroSizedResponse => todo!(), HeaderFlags::Error => todo!(), - HeaderFlags::ErrorWithMessage => todo!(), HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), - HeaderFlags::ZeroSizedRequest => todo!(), - HeaderFlags::ZeroSizedResponse => todo!(), + HeaderFlags::RequestWithPayload => { + if let Some(len, consumed) = read_varint() + } + HeaderFlags::ResponseWithPayload => todo!(), + HeaderFlags::ErrorWithMessage => todo!(), } + + todo!(); } } +fn read_varint(input: &[u8]) -> Option<(u32, usize)> { + let mut num = 0u32; + + for (idx, &c) in input.iter().enumerate() { + num |= (c & 0b0111_1111) as u32; + + if c & 0b1000_0000 != 0 { + // More to follow. + num <<= 7; + } else { + return Some((num, idx + 1)); + } + } + + // We found no stop condition, so our integer is incomplete. + None +} + #[cfg(test)] mod tests { use crate::{Header, HeaderFlags}; From b755ffb40d38533e434e5da45b5dcdf446daf214 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 15:49:16 +0200 Subject: [PATCH 371/735] juliet: Use stateless message parsing requiring continuous memory --- juliet/src/lib.rs | 109 ++++++++++++++++++++++++---------------------- 1 file changed, 58 insertions(+), 51 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 2c54c7109b..d7648b9bf7 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -10,9 +10,18 @@ type RequestId = u16; const HEADER_SIZE: usize = 4; -enum ReceiveOutcome { +enum ReceiveOutcome<'a> { /// We need at least the given amount of additional bytes before another item is produced. - MissingAtLeast(usize), + NeedMore(usize), + Consumed { + channel: u8, + raw_message: RawMessage<'a>, + bytes_consumed: usize, + }, +} + +enum RawMessage<'a> { + NewRequest { id: u16, payload: Option<&'a [u8]> }, } #[derive(Debug)] @@ -30,7 +39,7 @@ struct Channel { } #[derive(Copy, Clone, Debug, Eq, PartialEq)] -#[repr(C, packed)] +#[repr(C)] // TODO: See if we need `packed` or not. Maybe add a test? struct Header { id: u16, channel: u8, @@ -96,54 +105,17 @@ impl From
for [u8; 4] { } impl Receiver { - fn input(&mut self, buf: &mut B) -> ReceiveOutcome { - let header = match self.current_header { - None => { - // Check if we have enough to read a header. - if buf.remaining() < HEADER_SIZE { - return ReceiveOutcome::MissingAtLeast(HEADER_SIZE - buf.remaining()); - } + fn input<'a>(&mut self, buf: &'a [u8]) -> ReceiveOutcome<'a> { + let header_raw = match <[u8; HEADER_SIZE]>::try_from(&buf[0..HEADER_SIZE]) { + Ok(v) => v, + Err(_) => return ReceiveOutcome::NeedMore(HEADER_SIZE - buf.remaining()), + }; - // Grab the header and advance. - let header = Header::try_from(buf.get_u32_le().to_le_bytes()) - .expect("TODO: add error handling, invalid error"); - - // Process a new header: - match header.flags { - HeaderFlags::RequestWithPayload => { - let channel_id = if (header.channel as usize) < N { - header.channel as usize - } else { - panic!("TODO: handle error (invalid channel)"); - }; - let channel = &mut self.channels[channel_id]; - let request_id = header.id; - - if channel.pending_requests.len() >= self.request_limits[channel_id] { - panic!("TODO: handle too many requests"); - } - - if channel.pending_requests.contains(&request_id) { - panic!("TODO: handle duplicate request"); - } - - // Now we know that we have received a valid new request, continue to - // process data as normal. - } - HeaderFlags::ResponseWithPayload => todo!(), - HeaderFlags::Error => todo!(), - HeaderFlags::ErrorWithMessage => todo!(), - HeaderFlags::RequestCancellation => todo!(), - HeaderFlags::ResponseCancellation => todo!(), - HeaderFlags::ZeroSizedRequest => todo!(), - HeaderFlags::ZeroSizedResponse => todo!(), - } + let header = Header::try_from(header_raw).expect("TODO: add error handling, invalid error"); - self.current_header.insert(header) - } - Some(ref header) => header, - }; + let start = buf.as_ptr() as usize; + // Process a new header: match header.flags { HeaderFlags::ZeroSizedRequest => todo!(), HeaderFlags::ZeroSizedResponse => todo!(), @@ -151,13 +123,48 @@ impl Receiver { HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), HeaderFlags::RequestWithPayload => { - if let Some(len, consumed) = read_varint() + let channel_id = if (header.channel as usize) < N { + header.channel as usize + } else { + panic!("TODO: handle error (invalid channel)"); + }; + let channel = &mut self.channels[channel_id]; + + if channel.pending_requests.len() >= self.request_limits[channel_id] { + panic!("TODO: handle too many requests"); + } + + if channel.pending_requests.contains(&header.id) { + panic!("TODO: handle duplicate request"); + } + + let payload_with_length = &buf[HEADER_SIZE..]; + let (payload_fragment, total_payload_len) = + if let Some((payload_fragment, consumed)) = read_varint(payload_with_length) { + (&buf[consumed..], payload_fragment as usize) + } else { + return ReceiveOutcome::NeedMore(1); + }; + + // TODO: Limit max payload length. + + if payload_fragment.len() >= total_payload_len { + let payload = &payload_fragment[..total_payload_len]; + ReceiveOutcome::Consumed { + channel: header.channel, + raw_message: RawMessage::NewRequest { + id: header.id, + payload: Some(payload), + }, + bytes_consumed: payload.as_ptr() as usize - start + payload.len(), + } + } else { + ReceiveOutcome::NeedMore(total_payload_len - payload_fragment.len()) + } } HeaderFlags::ResponseWithPayload => todo!(), HeaderFlags::ErrorWithMessage => todo!(), } - - todo!(); } } From 8ec9b92c932200ae0897ff5e37fba9cbc8269034 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 17:28:00 +0200 Subject: [PATCH 372/735] juliet: Add `error` module --- juliet/Cargo.toml | 2 +- juliet/src/error.rs | 20 +++++++++++ juliet/src/lib.rs | 83 +++++++++++++++++++++++++-------------------- 3 files changed, 67 insertions(+), 38 deletions(-) create mode 100644 juliet/src/error.rs diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index e0b8c5a4b7..fbc18a7c54 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,4 +5,4 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] -bytes = "1.4.0" +thiserror = "1.0.40" diff --git a/juliet/src/error.rs b/juliet/src/error.rs new file mode 100644 index 0000000000..0bff890fbc --- /dev/null +++ b/juliet/src/error.rs @@ -0,0 +1,20 @@ +//! Error type for `juliet`. + +use thiserror::Error; + +/// Protocol violation. +#[derive(Debug, Error)] +pub enum Error { + /// The peer sent invalid flags in a header. + #[error("invalid flags: {0:010b}")] + InvalidFlags(u8), + /// A channel number that does not exist was encountered. + #[error("invalid channel: {0}")] + InvalidChannel(u8), + /// Peer made too many requests (without awaiting sufficient responses). + #[error("request limit exceeded")] + RequestLimitExceeded, + /// Peer re-used an in-flight request ID. + #[error("duplicate request id")] + DuplicateRequest, +} diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index d7648b9bf7..c4e46bcd24 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,16 +1,14 @@ -use std::{ - collections::{BTreeMap, BTreeSet}, - fmt::Debug, -}; +mod error; -use bytes::Buf; +pub use error::Error; +use std::{collections::BTreeSet, fmt::Debug}; type ChannelId = u8; type RequestId = u16; const HEADER_SIZE: usize = 4; -enum ReceiveOutcome<'a> { +pub enum ReceiveOutcome<'a> { /// We need at least the given amount of additional bytes before another item is produced. NeedMore(usize), Consumed { @@ -20,17 +18,15 @@ enum ReceiveOutcome<'a> { }, } -enum RawMessage<'a> { +pub enum RawMessage<'a> { NewRequest { id: u16, payload: Option<&'a [u8]> }, } #[derive(Debug)] -struct Receiver { - current_header: Option
, - payload_length: Option, +pub struct Receiver { channels: [Channel; N], request_limits: [usize; N], - segment_limit: u32, + frame_size_limit: u32, } #[derive(Debug)] @@ -84,6 +80,7 @@ impl TryFrom<[u8; 4]> for Header { let flags = HeaderFlags::try_from(value[0])?; // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. Ok(Header { + // Safe unwrap here, as the size of `value[2..4]` is exactly the necessary 2 bytes. id: u16::from_le_bytes(value[2..4].try_into().unwrap()), channel: value[1], flags, @@ -105,15 +102,16 @@ impl From
for [u8; 4] { } impl Receiver { - fn input<'a>(&mut self, buf: &'a [u8]) -> ReceiveOutcome<'a> { + pub fn input<'a>(&mut self, buf: &'a [u8]) -> Result, Error> { let header_raw = match <[u8; HEADER_SIZE]>::try_from(&buf[0..HEADER_SIZE]) { Ok(v) => v, - Err(_) => return ReceiveOutcome::NeedMore(HEADER_SIZE - buf.remaining()), + Err(_) => return Ok(ReceiveOutcome::NeedMore(HEADER_SIZE - buf.len())), }; - let header = Header::try_from(header_raw).expect("TODO: add error handling, invalid error"); + let header = Header::try_from(header_raw).map_err(Error::InvalidFlags)?; let start = buf.as_ptr() as usize; + let no_header_buf = &buf[HEADER_SIZE..]; // Process a new header: match header.flags { @@ -126,63 +124,71 @@ impl Receiver { let channel_id = if (header.channel as usize) < N { header.channel as usize } else { - panic!("TODO: handle error (invalid channel)"); + return Err(Error::InvalidChannel(header.channel)); }; let channel = &mut self.channels[channel_id]; if channel.pending_requests.len() >= self.request_limits[channel_id] { - panic!("TODO: handle too many requests"); + return Err(Error::RequestLimitExceeded); } if channel.pending_requests.contains(&header.id) { - panic!("TODO: handle duplicate request"); + return Err(Error::DuplicateRequest); } - let payload_with_length = &buf[HEADER_SIZE..]; - let (payload_fragment, total_payload_len) = - if let Some((payload_fragment, consumed)) = read_varint(payload_with_length) { - (&buf[consumed..], payload_fragment as usize) - } else { - return ReceiveOutcome::NeedMore(1); - }; - - // TODO: Limit max payload length. - - if payload_fragment.len() >= total_payload_len { - let payload = &payload_fragment[..total_payload_len]; - ReceiveOutcome::Consumed { + match self.read_variable_payload(no_header_buf) { + Ok(payload) => Ok(ReceiveOutcome::Consumed { channel: header.channel, raw_message: RawMessage::NewRequest { id: header.id, payload: Some(payload), }, bytes_consumed: payload.as_ptr() as usize - start + payload.len(), - } - } else { - ReceiveOutcome::NeedMore(total_payload_len - payload_fragment.len()) + }), + Err(needed) => Ok(ReceiveOutcome::NeedMore(needed)), } } HeaderFlags::ResponseWithPayload => todo!(), HeaderFlags::ErrorWithMessage => todo!(), } } + + fn read_variable_payload<'a>(&self, buf: &'a [u8]) -> Result<&'a [u8], usize> { + let Some((payload_len, consumed)) = read_varint_u32(buf) + else { + return Err(1); + }; + + let payload_len = payload_len as usize; + + // TODO: Limit max payload length. + + let fragment = &buf[consumed..]; + if fragment.len() < payload_len { + return Err(payload_len - fragment.len()); + } + let payload = &fragment[..payload_len]; + Ok(payload) + } } -fn read_varint(input: &[u8]) -> Option<(u32, usize)> { +fn read_varint_u32(input: &[u8]) -> Option<(u32, usize)> { + // TODO: Handle overflow (should be an error)? + let mut num = 0u32; for (idx, &c) in input.iter().enumerate() { num |= (c & 0b0111_1111) as u32; if c & 0b1000_0000 != 0 { - // More to follow. + // More bits will follow. num <<= 7; } else { return Some((num, idx + 1)); } } - // We found no stop condition, so our integer is incomplete. + // We found no stop bit, so our integer is incomplete. None } @@ -199,7 +205,10 @@ mod tests { id: 0x7856, // 30806 }; - assert_eq!(Header::try_from(input).unwrap(), expected); + assert_eq!( + Header::try_from(input).expect("could not parse header"), + expected + ); assert_eq!(<[u8; 4]>::from(expected), input); } } From 43f47a26cc4c234ec6222e069c3e7141324db031 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 17:36:26 +0200 Subject: [PATCH 373/735] juliet: Factor our `header` module --- juliet/src/header.rs | 113 +++++++++++++++++++++++++++++++++++++++++++ juliet/src/lib.rs | 92 +---------------------------------- 2 files changed, 115 insertions(+), 90 deletions(-) create mode 100644 juliet/src/header.rs diff --git a/juliet/src/header.rs b/juliet/src/header.rs new file mode 100644 index 0000000000..97edd7c004 --- /dev/null +++ b/juliet/src/header.rs @@ -0,0 +1,113 @@ +/// `juliet` header parsing and serialization. + +/// The size of a header in bytes. +pub(crate) const HEADER_SIZE: usize = 4; + +/// Header structure. +/// +/// This struct guaranteed to be 1:1 bit compatible to actually serialized headers on little endian +/// machines, thus serialization/deserialization should be no-ops when compiled with optimizations. +#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[repr(C)] +pub(crate) struct Header { + /// Request/response ID. + pub(crate) id: u16, + /// Channel for the frame this header belongs to. + pub(crate) channel: u8, + /// Flags. + /// + /// See protocol documentation for details. + pub(crate) flags: HeaderFlags, +} + +/// Header flags. +/// +/// At the moment, all flag combinations available require separate code-paths for handling anyway, +/// thus there are no true "optional" flags. Thus for simplicity, an `enum` is used at the moment. +#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[repr(u8)] +pub(crate) enum HeaderFlags { + /// A request without a segment following it. + ZeroSizedRequest = 0b00000000, + /// A response without a segment following it. + ZeroSizedResponse = 0b00000001, + /// An error with no detail segment. + Error = 0b00000011, + /// Cancellation of a request. + RequestCancellation = 0b00000100, + /// Cancellation of a response. + ResponseCancellation = 0b00000101, + /// A request with a segment following it. + RequestWithPayload = 0b00001000, + /// A response with a segment following it. + ResponseWithPayload = 0b00001001, + /// An error with a detail segment. + ErrorWithMessage = 0b00001010, +} + +impl TryFrom for HeaderFlags { + type Error = u8; + + fn try_from(value: u8) -> Result { + match value { + 0b00000000 => Ok(HeaderFlags::ZeroSizedRequest), + 0b00000001 => Ok(HeaderFlags::ZeroSizedResponse), + 0b00000011 => Ok(HeaderFlags::Error), + 0b00000100 => Ok(HeaderFlags::RequestCancellation), + 0b00000101 => Ok(HeaderFlags::ResponseCancellation), + 0b00001000 => Ok(HeaderFlags::RequestWithPayload), + 0b00001001 => Ok(HeaderFlags::ResponseWithPayload), + 0b00001010 => Ok(HeaderFlags::ErrorWithMessage), + _ => Err(value), + } + } +} + +impl TryFrom<[u8; 4]> for Header { + type Error = u8; // Invalid flags are returned as the error. + + fn try_from(value: [u8; 4]) -> Result { + let flags = HeaderFlags::try_from(value[0])?; + // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. + Ok(Header { + // Safe unwrap here, as the size of `value[2..4]` is exactly the necessary 2 bytes. + id: u16::from_le_bytes(value[2..4].try_into().unwrap()), + channel: value[1], + flags, + }) + } +} + +impl From
for [u8; 4] { + #[inline(always)] + fn from(header: Header) -> Self { + // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. + [ + header.flags as u8, + header.channel, + header.id.to_le_bytes()[0], + header.id.to_le_bytes()[1], + ] + } +} + +#[cfg(test)] +mod tests { + use crate::{Header, HeaderFlags}; + + #[test] + fn known_headers() { + let input = [0x09, 0x34, 0x56, 0x78]; + let expected = Header { + flags: HeaderFlags::ResponseWithPayload, + channel: 0x34, // 52 + id: 0x7856, // 30806 + }; + + assert_eq!( + Header::try_from(input).expect("could not parse header"), + expected + ); + assert_eq!(<[u8; 4]>::from(expected), input); + } +} diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index c4e46bcd24..2e07b966f9 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,13 +1,13 @@ mod error; +mod header; pub use error::Error; +use header::{Header, HeaderFlags, HEADER_SIZE}; use std::{collections::BTreeSet, fmt::Debug}; type ChannelId = u8; type RequestId = u16; -const HEADER_SIZE: usize = 4; - pub enum ReceiveOutcome<'a> { /// We need at least the given amount of additional bytes before another item is produced. NeedMore(usize), @@ -34,73 +34,6 @@ struct Channel { pending_requests: BTreeSet, } -#[derive(Copy, Clone, Debug, Eq, PartialEq)] -#[repr(C)] // TODO: See if we need `packed` or not. Maybe add a test? -struct Header { - id: u16, - channel: u8, - flags: HeaderFlags, -} - -#[derive(Copy, Clone, Debug, Eq, PartialEq)] -#[repr(u8)] -enum HeaderFlags { - ZeroSizedRequest = 0b00000000, - ZeroSizedResponse = 0b00000001, - Error = 0b00000011, - RequestCancellation = 0b00000100, - ResponseCancellation = 0b00000101, - RequestWithPayload = 0b00001000, - ResponseWithPayload = 0b00001001, - ErrorWithMessage = 0b00001010, -} - -impl TryFrom for HeaderFlags { - type Error = u8; - - fn try_from(value: u8) -> Result { - match value { - 0b00000000 => Ok(HeaderFlags::ZeroSizedRequest), - 0b00000001 => Ok(HeaderFlags::ZeroSizedResponse), - 0b00000011 => Ok(HeaderFlags::Error), - 0b00000100 => Ok(HeaderFlags::RequestCancellation), - 0b00000101 => Ok(HeaderFlags::ResponseCancellation), - 0b00001000 => Ok(HeaderFlags::RequestWithPayload), - 0b00001001 => Ok(HeaderFlags::ResponseWithPayload), - 0b00001010 => Ok(HeaderFlags::ErrorWithMessage), - _ => Err(value), - } - } -} - -impl TryFrom<[u8; 4]> for Header { - type Error = u8; // Invalid flags. - - fn try_from(value: [u8; 4]) -> Result { - let flags = HeaderFlags::try_from(value[0])?; - // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. - Ok(Header { - // Safe unwrap here, as the size of `value[2..4]` is exactly the necessary 2 bytes. - id: u16::from_le_bytes(value[2..4].try_into().unwrap()), - channel: value[1], - flags, - }) - } -} - -impl From
for [u8; 4] { - #[inline(always)] - fn from(header: Header) -> Self { - // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. - [ - header.flags as u8, - header.channel, - header.id.to_le_bytes()[0], - header.id.to_le_bytes()[1], - ] - } -} - impl Receiver { pub fn input<'a>(&mut self, buf: &'a [u8]) -> Result, Error> { let header_raw = match <[u8; HEADER_SIZE]>::try_from(&buf[0..HEADER_SIZE]) { @@ -191,24 +124,3 @@ fn read_varint_u32(input: &[u8]) -> Option<(u32, usize)> { // We found no stop bit, so our integer is incomplete. None } - -#[cfg(test)] -mod tests { - use crate::{Header, HeaderFlags}; - - #[test] - fn known_headers() { - let input = [0x09, 0x34, 0x56, 0x78]; - let expected = Header { - flags: HeaderFlags::ResponseWithPayload, - channel: 0x34, // 52 - id: 0x7856, // 30806 - }; - - assert_eq!( - Header::try_from(input).expect("could not parse header"), - expected - ); - assert_eq!(<[u8; 4]>::from(expected), input); - } -} From 8f87ad3c4f06825f9ae81b7e6f07c05ef4b7cfac Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 17:53:03 +0200 Subject: [PATCH 374/735] juliet: Add support for responses with payloads --- Cargo.lock | 2 +- juliet/src/error.rs | 7 ++- juliet/src/header.rs | 6 ++- juliet/src/lib.rs | 112 +++++++++++++++++++++++++++++++++---------- 4 files changed, 98 insertions(+), 29 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index c2cc1c6e8c..25fb0e9a3b 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2462,7 +2462,7 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ - "bytes", + "thiserror", ] [[package]] diff --git a/juliet/src/error.rs b/juliet/src/error.rs index 0bff890fbc..7635b35c92 100644 --- a/juliet/src/error.rs +++ b/juliet/src/error.rs @@ -2,6 +2,8 @@ use thiserror::Error; +use crate::{ChannelId, RequestId}; + /// Protocol violation. #[derive(Debug, Error)] pub enum Error { @@ -10,11 +12,14 @@ pub enum Error { InvalidFlags(u8), /// A channel number that does not exist was encountered. #[error("invalid channel: {0}")] - InvalidChannel(u8), + InvalidChannel(ChannelId), /// Peer made too many requests (without awaiting sufficient responses). #[error("request limit exceeded")] RequestLimitExceeded, /// Peer re-used an in-flight request ID. #[error("duplicate request id")] DuplicateRequest, + /// Peer sent a response for a request that does not exist. + #[error("fictive request: {0}")] + FictiveRequest(RequestId), } diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 97edd7c004..05719759c6 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,3 +1,5 @@ +use crate::{ChannelId, RequestId}; + /// `juliet` header parsing and serialization. /// The size of a header in bytes. @@ -11,9 +13,9 @@ pub(crate) const HEADER_SIZE: usize = 4; #[repr(C)] pub(crate) struct Header { /// Request/response ID. - pub(crate) id: u16, + pub(crate) id: RequestId, /// Channel for the frame this header belongs to. - pub(crate) channel: u8, + pub(crate) channel: ChannelId, /// Flags. /// /// See protocol documentation for details. diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 2e07b966f9..321746d8bb 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -13,13 +13,20 @@ pub enum ReceiveOutcome<'a> { NeedMore(usize), Consumed { channel: u8, - raw_message: RawMessage<'a>, + raw_message: Frame<'a>, bytes_consumed: usize, }, } -pub enum RawMessage<'a> { - NewRequest { id: u16, payload: Option<&'a [u8]> }, +pub enum Frame<'a> { + Request { + id: RequestId, + payload: Option<&'a [u8]>, + }, + Response { + id: RequestId, + payload: Option<&'a [u8]>, + }, } #[derive(Debug)] @@ -31,7 +38,7 @@ pub struct Receiver { #[derive(Debug)] struct Channel { - pending_requests: BTreeSet, + pending: BTreeSet, } impl Receiver { @@ -54,34 +61,43 @@ impl Receiver { HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), HeaderFlags::RequestWithPayload => { - let channel_id = if (header.channel as usize) < N { - header.channel as usize - } else { - return Err(Error::InvalidChannel(header.channel)); - }; - let channel = &mut self.channels[channel_id]; - - if channel.pending_requests.len() >= self.request_limits[channel_id] { - return Err(Error::RequestLimitExceeded); - } + let channel_id = self.validate_request(&header)?; - if channel.pending_requests.contains(&header.id) { - return Err(Error::DuplicateRequest); + match self.read_variable_payload(no_header_buf) { + Ok(payload) => { + self.channel_mut(channel_id).pending.insert(header.id); + + Ok(ReceiveOutcome::Consumed { + channel: header.channel, + raw_message: Frame::Request { + id: header.id, + payload: Some(payload), + }, + bytes_consumed: payload.as_ptr() as usize - start + payload.len(), + }) + } + Err(needed) => Ok(ReceiveOutcome::NeedMore(needed)), } + } + HeaderFlags::ResponseWithPayload => { + let channel_id = self.validate_response(&header)?; match self.read_variable_payload(no_header_buf) { - Ok(payload) => Ok(ReceiveOutcome::Consumed { - channel: header.channel, - raw_message: RawMessage::NewRequest { - id: header.id, - payload: Some(payload), - }, - bytes_consumed: payload.as_ptr() as usize - start + payload.len(), - }), + Ok(payload) => { + self.channel_mut(channel_id).pending.remove(&header.id); + + Ok(ReceiveOutcome::Consumed { + channel: header.channel, + raw_message: Frame::Request { + id: header.id, + payload: Some(payload), + }, + bytes_consumed: payload.as_ptr() as usize - start + payload.len(), + }) + } Err(needed) => Ok(ReceiveOutcome::NeedMore(needed)), } } - HeaderFlags::ResponseWithPayload => todo!(), HeaderFlags::ErrorWithMessage => todo!(), } } @@ -103,6 +119,52 @@ impl Receiver { let payload = &fragment[..payload_len]; Ok(payload) } + + fn validate_channel(header: &Header) -> Result { + if (header.channel as usize) < N { + Ok(header.channel) + } else { + Err(Error::InvalidChannel(header.channel)) + } + } + + fn validate_request(&self, header: &Header) -> Result { + let channel_id = Self::validate_channel(&header)?; + let channel = self.channel(channel_id); + + if channel.pending.len() >= self.request_limit(channel_id) { + return Err(Error::RequestLimitExceeded); + } + + if channel.pending.contains(&header.id) { + return Err(Error::DuplicateRequest); + } + + Ok(channel_id) + } + + fn validate_response(&self, header: &Header) -> Result { + let channel_id = Self::validate_channel(&header)?; + let channel = self.channel(channel_id); + + if !channel.pending.contains(&header.id) { + return Err(Error::FictiveRequest(header.id)); + } + + Ok(channel_id) + } + + fn channel(&self, channel_id: ChannelId) -> &Channel { + &self.channels[channel_id as usize] + } + + fn channel_mut(&mut self, channel_id: ChannelId) -> &mut Channel { + &mut self.channels[channel_id as usize] + } + + fn request_limit(&self, channel_id: ChannelId) -> usize { + self.request_limits[channel_id as usize] + } } fn read_varint_u32(input: &[u8]) -> Option<(u32, usize)> { From b20578da3ab0eb92f3b8ff1f6d3f6201a6744858 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 18:19:56 +0200 Subject: [PATCH 375/735] juliet: Honor segment size limit --- juliet/src/error.rs | 3 ++ juliet/src/lib.rs | 118 +++++++++++++++++++++++++++----------------- 2 files changed, 75 insertions(+), 46 deletions(-) diff --git a/juliet/src/error.rs b/juliet/src/error.rs index 7635b35c92..4849343ba8 100644 --- a/juliet/src/error.rs +++ b/juliet/src/error.rs @@ -22,4 +22,7 @@ pub enum Error { /// Peer sent a response for a request that does not exist. #[error("fictive request: {0}")] FictiveRequest(RequestId), + /// Peer wants to send a segment that, along with its header, would violate the frame size. + #[error("segment of {0} would exceed frame size limit")] + SegmentSizedExceeded(usize), } diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 321746d8bb..9459b00bc5 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -8,17 +8,21 @@ use std::{collections::BTreeSet, fmt::Debug}; type ChannelId = u8; type RequestId = u16; -pub enum ReceiveOutcome<'a> { +pub enum ReceiveOutcome { /// We need at least the given amount of additional bytes before another item is produced. NeedMore(usize), Consumed { - channel: u8, - raw_message: Frame<'a>, + value: T, bytes_consumed: usize, }, } -pub enum Frame<'a> { +pub struct Frame<'a> { + pub channel: ChannelId, + pub kind: FrameKind<'a>, +} + +pub enum FrameKind<'a> { Request { id: RequestId, payload: Option<&'a [u8]>, @@ -42,7 +46,7 @@ struct Channel { } impl Receiver { - pub fn input<'a>(&mut self, buf: &'a [u8]) -> Result, Error> { + pub fn input<'a>(&mut self, buf: &'a [u8]) -> Result>, Error> { let header_raw = match <[u8; HEADER_SIZE]>::try_from(&buf[0..HEADER_SIZE]) { Ok(v) => v, Err(_) => return Ok(ReceiveOutcome::NeedMore(HEADER_SIZE - buf.len())), @@ -50,7 +54,6 @@ impl Receiver { let header = Header::try_from(header_raw).map_err(Error::InvalidFlags)?; - let start = buf.as_ptr() as usize; let no_header_buf = &buf[HEADER_SIZE..]; // Process a new header: @@ -61,65 +64,57 @@ impl Receiver { HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), HeaderFlags::RequestWithPayload => { - let channel_id = self.validate_request(&header)?; + let channel = self.validate_request(&header)?; + + match read_variable_payload(no_header_buf, self.segment_size_limit())? { + ReceiveOutcome::Consumed { + value, + mut bytes_consumed, + } => { + bytes_consumed += HEADER_SIZE; + self.channel_mut(channel).pending.insert(header.id); - match self.read_variable_payload(no_header_buf) { - Ok(payload) => { - self.channel_mut(channel_id).pending.insert(header.id); + let kind = FrameKind::Request { + id: header.id, + payload: Some(value), + }; Ok(ReceiveOutcome::Consumed { - channel: header.channel, - raw_message: Frame::Request { - id: header.id, - payload: Some(payload), - }, - bytes_consumed: payload.as_ptr() as usize - start + payload.len(), + value: Frame { channel, kind }, + bytes_consumed, }) } - Err(needed) => Ok(ReceiveOutcome::NeedMore(needed)), + ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), } } HeaderFlags::ResponseWithPayload => { - let channel_id = self.validate_response(&header)?; + let channel = self.validate_response(&header)?; - match self.read_variable_payload(no_header_buf) { - Ok(payload) => { - self.channel_mut(channel_id).pending.remove(&header.id); + match read_variable_payload(no_header_buf, self.segment_size_limit())? { + ReceiveOutcome::Consumed { + value, + mut bytes_consumed, + } => { + bytes_consumed += HEADER_SIZE; + self.channel_mut(channel).pending.remove(&header.id); + + let kind = FrameKind::Request { + id: header.id, + payload: Some(value), + }; Ok(ReceiveOutcome::Consumed { - channel: header.channel, - raw_message: Frame::Request { - id: header.id, - payload: Some(payload), - }, - bytes_consumed: payload.as_ptr() as usize - start + payload.len(), + value: Frame { channel, kind }, + bytes_consumed, }) } - Err(needed) => Ok(ReceiveOutcome::NeedMore(needed)), + ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), } } HeaderFlags::ErrorWithMessage => todo!(), } } - fn read_variable_payload<'a>(&self, buf: &'a [u8]) -> Result<&'a [u8], usize> { - let Some((payload_len, consumed)) = read_varint_u32(buf) - else { - return Err(1); - }; - - let payload_len = payload_len as usize; - - // TODO: Limit max payload length. - - let fragment = &buf[consumed..]; - if fragment.len() < payload_len { - return Err(payload_len - fragment.len()); - } - let payload = &fragment[..payload_len]; - Ok(payload) - } - fn validate_channel(header: &Header) -> Result { if (header.channel as usize) < N { Ok(header.channel) @@ -165,6 +160,10 @@ impl Receiver { fn request_limit(&self, channel_id: ChannelId) -> usize { self.request_limits[channel_id as usize] } + + fn segment_size_limit(&self) -> usize { + self.frame_size_limit.saturating_sub(HEADER_SIZE as u32) as usize + } } fn read_varint_u32(input: &[u8]) -> Option<(u32, usize)> { @@ -186,3 +185,30 @@ fn read_varint_u32(input: &[u8]) -> Option<(u32, usize)> { // We found no stop bit, so our integer is incomplete. None } + +fn read_variable_payload<'a>( + buf: &'a [u8], + limit: usize, +) -> Result, Error> { + let Some((value_len, mut bytes_consumed)) = read_varint_u32(buf) + else { + return Ok(ReceiveOutcome::NeedMore(1)); + }; + let value_len = value_len as usize; + + if value_len + bytes_consumed < limit { + return Err(Error::SegmentSizedExceeded(value_len + bytes_consumed)); + } + + let payload = &buf[bytes_consumed..]; + if payload.len() < value_len { + return Ok(ReceiveOutcome::NeedMore(value_len - payload.len())); + } + + let value = &payload[..value_len]; + bytes_consumed += value.len(); + Ok(ReceiveOutcome::Consumed { + value, + bytes_consumed, + }) +} From c9fcbe25f2b94cbdbc2e411c6d4914aa2c94a2ae Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 18:25:23 +0200 Subject: [PATCH 376/735] juliet: Handle varint overflows --- juliet/src/error.rs | 3 +++ juliet/src/lib.rs | 29 ++++++++++++++++++++--------- 2 files changed, 23 insertions(+), 9 deletions(-) diff --git a/juliet/src/error.rs b/juliet/src/error.rs index 4849343ba8..168511606f 100644 --- a/juliet/src/error.rs +++ b/juliet/src/error.rs @@ -25,4 +25,7 @@ pub enum Error { /// Peer wants to send a segment that, along with its header, would violate the frame size. #[error("segment of {0} would exceed frame size limit")] SegmentSizedExceeded(usize), + /// Variable size integer overflowed. + #[error("varint overflow")] + VarIntOverflow, } diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 9459b00bc5..648680b984 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -166,34 +166,45 @@ impl Receiver { } } -fn read_varint_u32(input: &[u8]) -> Option<(u32, usize)> { +fn read_varint_u32(input: &[u8]) -> Result, Error> { // TODO: Handle overflow (should be an error)? - let mut num = 0u32; + let mut value = 0u32; for (idx, &c) in input.iter().enumerate() { - num |= (c & 0b0111_1111) as u32; + value |= (c & 0b0111_1111) as u32; if c & 0b1000_0000 != 0 { + if idx > 5 { + return Err(Error::VarIntOverflow); + } + // More bits will follow. - num <<= 7; + value <<= 7; } else { - return Some((num, idx + 1)); + return Ok(ReceiveOutcome::Consumed { + value, + bytes_consumed: idx + 1, + }); } } // We found no stop bit, so our integer is incomplete. - None + Ok(ReceiveOutcome::NeedMore(1)) } fn read_variable_payload<'a>( buf: &'a [u8], limit: usize, ) -> Result, Error> { - let Some((value_len, mut bytes_consumed)) = read_varint_u32(buf) - else { - return Ok(ReceiveOutcome::NeedMore(1)); + let (value_len, mut bytes_consumed) = match read_varint_u32(buf)? { + ReceiveOutcome::NeedMore(needed) => return Ok(ReceiveOutcome::NeedMore(needed)), + ReceiveOutcome::Consumed { + value, + bytes_consumed, + } => (value, bytes_consumed), }; + let value_len = value_len as usize; if value_len + bytes_consumed < limit { From 6c3b976c1d365018c7b4cfee17107c525b332d06 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 18:32:57 +0200 Subject: [PATCH 377/735] juliet: Add support for zero-sized request/responses --- juliet/src/lib.rs | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 648680b984..9f68056866 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -58,9 +58,33 @@ impl Receiver { // Process a new header: match header.flags { - HeaderFlags::ZeroSizedRequest => todo!(), - HeaderFlags::ZeroSizedResponse => todo!(), - HeaderFlags::Error => todo!(), + HeaderFlags::ZeroSizedRequest => { + let channel = self.validate_request(&header)?; + let kind = FrameKind::Request { + id: header.id, + payload: None, + }; + + Ok(ReceiveOutcome::Consumed { + value: Frame { channel, kind }, + bytes_consumed: HEADER_SIZE, + }) + } + HeaderFlags::ZeroSizedResponse => { + let channel = self.validate_response(&header)?; + let kind = FrameKind::Response { + id: header.id, + payload: None, + }; + + Ok(ReceiveOutcome::Consumed { + value: Frame { channel, kind }, + bytes_consumed: HEADER_SIZE, + }) + } + HeaderFlags::Error => { + todo!() + } HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), HeaderFlags::RequestWithPayload => { From 12ee397b7829d2ca65c0abc4ad961517bc577367 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 18:38:08 +0200 Subject: [PATCH 378/735] juliet: Add support for errors without payload --- juliet/src/lib.rs | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 9f68056866..862c6d779b 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -31,6 +31,10 @@ pub enum FrameKind<'a> { id: RequestId, payload: Option<&'a [u8]>, }, + Error { + code: RequestId, // TODO: Use error type here? + payload: Option<&'a [u8]>, + }, } #[derive(Debug)] @@ -83,7 +87,18 @@ impl Receiver { }) } HeaderFlags::Error => { - todo!() + let kind = FrameKind::Error { + code: header.id, + payload: None, + }; + + Ok(ReceiveOutcome::Consumed { + value: Frame { + channel: header.channel, // TODO: Ok to be unverified? + kind, + }, + bytes_consumed: HEADER_SIZE, + }) } HeaderFlags::RequestCancellation => todo!(), HeaderFlags::ResponseCancellation => todo!(), From a14835a7d4da6210bf6b2ae664992d3cdd4d69e7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 18:41:38 +0200 Subject: [PATCH 379/735] juliet: Remove one level of nesting and distinguish between verified and unverified channel numbers --- juliet/src/lib.rs | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 862c6d779b..57a9774613 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -5,8 +5,8 @@ pub use error::Error; use header::{Header, HeaderFlags, HEADER_SIZE}; use std::{collections::BTreeSet, fmt::Debug}; -type ChannelId = u8; -type RequestId = u16; +type ChannelId = u8; // TODO: newtype +type RequestId = u16; // TODO: newtype pub enum ReceiveOutcome { /// We need at least the given amount of additional bytes before another item is produced. @@ -17,22 +17,20 @@ pub enum ReceiveOutcome { }, } -pub struct Frame<'a> { - pub channel: ChannelId, - pub kind: FrameKind<'a>, -} - -pub enum FrameKind<'a> { +pub enum Frame<'a> { Request { id: RequestId, + channel: ChannelId, payload: Option<&'a [u8]>, }, Response { id: RequestId, + channel: ChannelId, payload: Option<&'a [u8]>, }, Error { code: RequestId, // TODO: Use error type here? + unverified_channel: u8, payload: Option<&'a [u8]>, }, } @@ -64,39 +62,39 @@ impl Receiver { match header.flags { HeaderFlags::ZeroSizedRequest => { let channel = self.validate_request(&header)?; - let kind = FrameKind::Request { + let frame = Frame::Request { id: header.id, + channel, payload: None, }; Ok(ReceiveOutcome::Consumed { - value: Frame { channel, kind }, + value: frame, bytes_consumed: HEADER_SIZE, }) } HeaderFlags::ZeroSizedResponse => { let channel = self.validate_response(&header)?; - let kind = FrameKind::Response { + let frame = Frame::Response { id: header.id, + channel, payload: None, }; Ok(ReceiveOutcome::Consumed { - value: Frame { channel, kind }, + value: frame, bytes_consumed: HEADER_SIZE, }) } HeaderFlags::Error => { - let kind = FrameKind::Error { + let frame = Frame::Error { code: header.id, + unverified_channel: header.channel, payload: None, }; Ok(ReceiveOutcome::Consumed { - value: Frame { - channel: header.channel, // TODO: Ok to be unverified? - kind, - }, + value: frame, bytes_consumed: HEADER_SIZE, }) } @@ -113,13 +111,14 @@ impl Receiver { bytes_consumed += HEADER_SIZE; self.channel_mut(channel).pending.insert(header.id); - let kind = FrameKind::Request { + let frame = Frame::Request { id: header.id, + channel, payload: Some(value), }; Ok(ReceiveOutcome::Consumed { - value: Frame { channel, kind }, + value: frame, bytes_consumed, }) } @@ -137,13 +136,14 @@ impl Receiver { bytes_consumed += HEADER_SIZE; self.channel_mut(channel).pending.remove(&header.id); - let kind = FrameKind::Request { + let frame = Frame::Request { id: header.id, + channel, payload: Some(value), }; Ok(ReceiveOutcome::Consumed { - value: Frame { channel, kind }, + value: frame, bytes_consumed, }) } From 07bdbe65db5da93b2c6254bddec37fc785870976 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 23 Apr 2023 18:44:02 +0200 Subject: [PATCH 380/735] juliet: Add support for errors with payload --- juliet/src/lib.rs | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 57a9774613..ed68793671 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -150,7 +150,28 @@ impl Receiver { ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), } } - HeaderFlags::ErrorWithMessage => todo!(), + HeaderFlags::ErrorWithMessage => { + match read_variable_payload(no_header_buf, self.segment_size_limit())? { + ReceiveOutcome::Consumed { + value, + mut bytes_consumed, + } => { + bytes_consumed += HEADER_SIZE; + + let frame = Frame::Error { + code: header.id, + unverified_channel: header.channel, + payload: Some(value), + }; + + Ok(ReceiveOutcome::Consumed { + value: frame, + bytes_consumed, + }) + } + ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), + } + } } } From 27d91804b564759940b3843945984a55ac287f4f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Apr 2023 13:33:22 +0200 Subject: [PATCH 381/735] Add first half of 1.5 metrics conservation test --- node/src/components/rest_server.rs | 28 +++++++- .../src/components/rest_server/http_server.rs | 7 +- node/src/reactor/main_reactor/tests.rs | 70 +++++++++++++++++++ 3 files changed, 103 insertions(+), 2 deletions(-) diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index 0caf3d5c82..60c0e7dcb0 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -23,10 +23,12 @@ mod event; mod filters; mod http_server; -use std::{fmt::Debug, time::Instant}; +use std::{fmt::Debug, sync::Arc, time::Instant}; use datasize::DataSize; use futures::{future::BoxFuture, join, FutureExt}; +use once_cell::sync::OnceCell; +use std::net::SocketAddr; use tokio::task::JoinHandle; use tracing::{debug, error, info, warn}; @@ -93,6 +95,8 @@ pub(crate) struct InnerRestServer { /// When the message is sent, it signals the server loop to exit cleanly. #[data_size(skip)] shutdown_fuse: DropSwitch, + /// The address the server is listening on. + local_addr: Arc>, /// The task handle which will only join once the server loop has exited. #[data_size(skip)] server_join_handle: Option>, @@ -130,6 +134,25 @@ impl RestServer { inner_rest: None, } } + + /// Returns the binding address. + /// + /// Only used in testing. If you need to actually retrieve the bind address, add an appropriate + /// request or, as a last resort, make this function return `Option`. + /// + /// # Panics + /// + /// If the bind address is malformed, panics. + #[cfg(test)] + pub(crate) fn bind_address(&self) -> SocketAddr { + self.inner_rest + .as_ref() + .expect("no inner rest server") + .local_addr + .get() + .expect("missing bind addr") + .to_owned() + } } impl Component for RestServer @@ -288,18 +311,21 @@ where let shutdown_fuse = ObservableFuse::new(); let builder = utils::start_listening(&cfg.address)?; + let local_addr: Arc> = Default::default(); let server_join_handle = Some(tokio::spawn(http_server::run( builder, effect_builder, self.api_version, shutdown_fuse.clone(), cfg.qps_limit, + local_addr.clone(), ))); let node_startup_instant = self.node_startup_instant; let network_name = self.network_name.clone(); self.inner_rest = Some(InnerRestServer { shutdown_fuse: DropSwitch::new(shutdown_fuse), + local_addr, server_join_handle, node_startup_instant, network_name, diff --git a/node/src/components/rest_server/http_server.rs b/node/src/components/rest_server/http_server.rs index a002534ffb..72dfd44f27 100644 --- a/node/src/components/rest_server/http_server.rs +++ b/node/src/components/rest_server/http_server.rs @@ -1,7 +1,8 @@ -use std::{convert::Infallible, time::Duration}; +use std::{convert::Infallible, net::SocketAddr, sync::Arc, time::Duration}; use futures::{future, TryFutureExt}; use hyper::server::{conn::AddrIncoming, Builder}; +use once_cell::sync::OnceCell; use tower::builder::ServiceBuilder; use tracing::{info, warn}; use warp::Filter; @@ -18,6 +19,7 @@ pub(super) async fn run( api_version: ProtocolVersion, shutdown_fuse: ObservableFuse, qps_limit: u64, + local_addr: Arc>, ) { // REST filters. let rest_status = filters::create_status_filter(effect_builder, api_version); @@ -45,6 +47,9 @@ pub(super) async fn run( .service(make_svc); let server = builder.serve(rate_limited_service); + if let Err(err) = local_addr.set(server.local_addr()) { + warn!(%err, "failed to set local addr for reflection"); + } info!(address = %server.local_addr(), "started REST server"); // Shutdown the server gracefully. diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index 0ec5910cb8..ec904f777d 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -22,6 +22,7 @@ use crate::{ }, gossiper, network, storage, upgrade_watcher::NextUpgrade, + InitializedComponent, }, effect::{ incoming::ConsensusMessageIncoming, @@ -908,3 +909,72 @@ async fn empty_block_validation_regression() { inactive => panic!("unexpected inactive validators: {:?}", inactive), } } + +/// Waits until all node have at least initialized the given component. +/// +/// Expects the ident of a +macro_rules! wait_for_component_initialization { + ($net:expr, $rng:expr, $component:ident) => { + $net.settle_on( + $rng, + |net| { + net.values().all(|runner| { + InitializedComponent::::is_initialized( + &(runner.main_reactor().$component), + ) + }) + }, + Duration::from_secs(60), + ) + .await; + }; +} + +#[tokio::test] +async fn all_metrics_from_1_5_are_present() { + testing::init_logging(); + + let mut rng = crate::new_rng(); + + let mut chain = TestChain::new(&mut rng, 2, None); + let mut net = chain + .create_initialized_network(&mut rng) + .await + .expect("network initialization failed"); + + wait_for_component_initialization!(net, &mut rng, rest_server); + + // Get the node ID. + let node_id = *net.nodes().keys().next().unwrap(); + + let rest_addr = net.nodes()[&node_id] + .main_reactor() + .rest_server + .bind_address(); + + // We let the entire network run in the background, until our request completes. + let finish_cranking = net.crank_until_stopped(rng); + + let metrics_response = reqwest::Client::builder() + .build() + .expect("failed to build client") + .get(dbg!(format!( + "http://localhost:{}/metrics", + rest_addr.port() + ))) + .timeout(Duration::from_secs(2)) + .send() + .await + .expect("request failed") + .error_for_status() + .expect("error response on metrics request") + .text() + .await + .expect("error retrieving text on metrics request"); + + dbg!(metrics_response); + + let (_net, _rng) = finish_cranking.await; + + // TODO: Compare metrics. +} From 9b00d0fbe91274a19028aae3d10a27ba065b92ac Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Apr 2023 13:47:34 +0200 Subject: [PATCH 382/735] Use a proper event to determine bind address, instead of `once_cell` hacks --- node/src/components/rest_server.rs | 26 +++++++++++++------ node/src/components/rest_server/event.rs | 3 +++ .../src/components/rest_server/http_server.rs | 19 +++++++++----- 3 files changed, 33 insertions(+), 15 deletions(-) diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index 60c0e7dcb0..ed2a48a706 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -23,11 +23,10 @@ mod event; mod filters; mod http_server; -use std::{fmt::Debug, sync::Arc, time::Instant}; +use std::{fmt::Debug, time::Instant}; use datasize::DataSize; use futures::{future::BoxFuture, join, FutureExt}; -use once_cell::sync::OnceCell; use std::net::SocketAddr; use tokio::task::JoinHandle; use tracing::{debug, error, info, warn}; @@ -96,7 +95,7 @@ pub(crate) struct InnerRestServer { #[data_size(skip)] shutdown_fuse: DropSwitch, /// The address the server is listening on. - local_addr: Arc>, + local_addr: Option, /// The task handle which will only join once the server loop has exited. #[data_size(skip)] server_join_handle: Option>, @@ -149,9 +148,7 @@ impl RestServer { .as_ref() .expect("no inner rest server") .local_addr - .get() .expect("missing bind addr") - .to_owned() } } @@ -191,6 +188,17 @@ where >::set_state(self, state); effects } + Event::BindComplete(local_addr) => { + match self.inner_rest { + Some(ref mut inner_rest) => { + inner_rest.local_addr = Some(local_addr); + } + None => { + error!("should not have received `BindComplete` event when REST server is disabled") + } + } + Effects::new() + } Event::RestRequest(_) | Event::GetMetricsResult { .. } => { warn!( ?event, @@ -209,6 +217,10 @@ where ); Effects::new() } + Event::BindComplete(_) => { + error!("REST component received BindComplete while initialized"); + Effects::new() + } Event::RestRequest(RestRequest::Status { responder }) => { let node_uptime = self.node_startup_instant.elapsed(); let network_name = self.network_name.clone(); @@ -311,21 +323,19 @@ where let shutdown_fuse = ObservableFuse::new(); let builder = utils::start_listening(&cfg.address)?; - let local_addr: Arc> = Default::default(); let server_join_handle = Some(tokio::spawn(http_server::run( builder, effect_builder, self.api_version, shutdown_fuse.clone(), cfg.qps_limit, - local_addr.clone(), ))); let node_startup_instant = self.node_startup_instant; let network_name = self.network_name.clone(); self.inner_rest = Some(InnerRestServer { shutdown_fuse: DropSwitch::new(shutdown_fuse), - local_addr, + local_addr: None, server_join_handle, node_startup_instant, network_name, diff --git a/node/src/components/rest_server/event.rs b/node/src/components/rest_server/event.rs index cfc9937848..e1364007c7 100644 --- a/node/src/components/rest_server/event.rs +++ b/node/src/components/rest_server/event.rs @@ -1,6 +1,7 @@ use std::{ fmt::{self, Display, Formatter}, mem, + net::SocketAddr, }; use derive_more::From; @@ -14,6 +15,7 @@ const_assert!(_REST_EVENT_SIZE < 89); #[derive(Debug, From)] pub(crate) enum Event { Initialize, + BindComplete(SocketAddr), #[from] RestRequest(RestRequest), GetMetricsResult { @@ -26,6 +28,7 @@ impl Display for Event { fn fmt(&self, formatter: &mut Formatter) -> fmt::Result { match self { Event::Initialize => write!(formatter, "initialize"), + Event::BindComplete(local_addr) => write!(formatter, "bind complete: {}", local_addr), Event::RestRequest(request) => write!(formatter, "{}", request), Event::GetMetricsResult { text, .. } => match text { Some(txt) => write!(formatter, "get metrics ({} bytes)", txt.len()), diff --git a/node/src/components/rest_server/http_server.rs b/node/src/components/rest_server/http_server.rs index 72dfd44f27..21bd53aa48 100644 --- a/node/src/components/rest_server/http_server.rs +++ b/node/src/components/rest_server/http_server.rs @@ -1,8 +1,7 @@ -use std::{convert::Infallible, net::SocketAddr, sync::Arc, time::Duration}; +use std::{convert::Infallible, time::Duration}; use futures::{future, TryFutureExt}; use hyper::server::{conn::AddrIncoming, Builder}; -use once_cell::sync::OnceCell; use tower::builder::ServiceBuilder; use tracing::{info, warn}; use warp::Filter; @@ -10,7 +9,10 @@ use warp::Filter; use casper_types::ProtocolVersion; use super::{filters, ReactorEventT}; -use crate::{effect::EffectBuilder, utils::ObservableFuse}; +use crate::{ + components::rest_server::Event, effect::EffectBuilder, reactor::QueueKind, + utils::ObservableFuse, +}; /// Run the REST HTTP server. pub(super) async fn run( @@ -19,7 +21,6 @@ pub(super) async fn run( api_version: ProtocolVersion, shutdown_fuse: ObservableFuse, qps_limit: u64, - local_addr: Arc>, ) { // REST filters. let rest_status = filters::create_status_filter(effect_builder, api_version); @@ -47,11 +48,15 @@ pub(super) async fn run( .service(make_svc); let server = builder.serve(rate_limited_service); - if let Err(err) = local_addr.set(server.local_addr()) { - warn!(%err, "failed to set local addr for reflection"); - } + info!(address = %server.local_addr(), "started REST server"); + // TODO: Where is the error case? Did we handle the case where we are unable to bind? + effect_builder + .into_inner() + .schedule(Event::BindComplete(server.local_addr()), QueueKind::Regular) + .await; + // Shutdown the server gracefully. let _ = server .with_graceful_shutdown(shutdown_fuse.wait_owned()) From 5cc2f94722d1b51d35d1bdaeef5e20ec78914df8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Apr 2023 13:50:37 +0200 Subject: [PATCH 383/735] Make component state properly depend on bind completing --- node/src/components.rs | 2 +- node/src/components/rest_server.rs | 5 +++++ node/src/components/rest_server/event.rs | 1 + node/src/components/rest_server/http_server.rs | 1 - 4 files changed, 7 insertions(+), 2 deletions(-) diff --git a/node/src/components.rs b/node/src/components.rs index 17c0fbf08a..d9e0ff5074 100644 --- a/node/src/components.rs +++ b/node/src/components.rs @@ -182,7 +182,7 @@ pub(crate) trait PortBoundComponent: InitializedComponent { } match self.listen(effect_builder) { - Ok(effects) => (effects, ComponentState::Initialized), + Ok(effects) => (effects, ComponentState::Initializing), Err(error) => (Effects::new(), ComponentState::Fatal(format!("{}", error))), } } diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index ed2a48a706..5b402d90f1 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -192,6 +192,11 @@ where match self.inner_rest { Some(ref mut inner_rest) => { inner_rest.local_addr = Some(local_addr); + info!(%local_addr, "REST server finishing binding"); + >::set_state( + self, + ComponentState::Initialized, + ); } None => { error!("should not have received `BindComplete` event when REST server is disabled") diff --git a/node/src/components/rest_server/event.rs b/node/src/components/rest_server/event.rs index e1364007c7..f37595a304 100644 --- a/node/src/components/rest_server/event.rs +++ b/node/src/components/rest_server/event.rs @@ -15,6 +15,7 @@ const_assert!(_REST_EVENT_SIZE < 89); #[derive(Debug, From)] pub(crate) enum Event { Initialize, + /// The background task running the HTTP server has finished binding its port. BindComplete(SocketAddr), #[from] RestRequest(RestRequest), diff --git a/node/src/components/rest_server/http_server.rs b/node/src/components/rest_server/http_server.rs index 21bd53aa48..74be21b8e8 100644 --- a/node/src/components/rest_server/http_server.rs +++ b/node/src/components/rest_server/http_server.rs @@ -51,7 +51,6 @@ pub(super) async fn run( info!(address = %server.local_addr(), "started REST server"); - // TODO: Where is the error case? Did we handle the case where we are unable to bind? effect_builder .into_inner() .schedule(Event::BindComplete(server.local_addr()), QueueKind::Regular) From fc199fa0cec2105d46e24f251731fb172412d227 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Apr 2023 14:21:13 +0200 Subject: [PATCH 384/735] Move `extract_metric_names` to appropriate place --- node/src/reactor/main_reactor/tests.rs | 28 +++++++++---- node/src/utils.rs | 42 ++++++++++--------- .../src/testing => resources}/metrics-1.5.txt | 0 3 files changed, 41 insertions(+), 29 deletions(-) rename {node/src/testing => resources}/metrics-1.5.txt (100%) diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index ec904f777d..562aac4868 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -1,4 +1,9 @@ -use std::{collections::BTreeMap, iter, sync::Arc, time::Duration}; +use std::{ + collections::{BTreeMap, HashSet}, + fs, iter, + sync::Arc, + time::Duration, +}; use either::Either; use num::Zero; @@ -42,7 +47,7 @@ use crate::{ ActivationPoint, BlockHeader, BlockPayload, Chainspec, ChainspecRawBytes, Deploy, ExitCode, NodeRng, }, - utils::{External, Loadable, Source, RESOURCES_PATH}, + utils::{extract_metric_names, External, Loadable, Source, RESOURCES_PATH}, WithDir, }; @@ -958,10 +963,7 @@ async fn all_metrics_from_1_5_are_present() { let metrics_response = reqwest::Client::builder() .build() .expect("failed to build client") - .get(dbg!(format!( - "http://localhost:{}/metrics", - rest_addr.port() - ))) + .get(format!("http://localhost:{}/metrics", rest_addr.port())) .timeout(Duration::from_secs(2)) .send() .await @@ -972,9 +974,17 @@ async fn all_metrics_from_1_5_are_present() { .await .expect("error retrieving text on metrics request"); - dbg!(metrics_response); - let (_net, _rng) = finish_cranking.await; - // TODO: Compare metrics. + let actual = extract_metric_names(&metrics_response); + let raw_1_5 = fs::read_to_string(RESOURCES_PATH.join("metrics-1.5.txt")) + .expect("could not read 1.5 metrics snapshot"); + let metrics_1_5 = extract_metric_names(&raw_1_5); + + let missing: HashSet<_> = metrics_1_5.difference(&actual).collect(); + assert!( + missing.is_empty(), + "missing 1.5 metrics in current metrics set: {:?}", + missing + ); } diff --git a/node/src/utils.rs b/node/src/utils.rs index 8cfde9ef6a..c769608515 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -16,7 +16,6 @@ pub mod work_queue; use std::{ any, cell::RefCell, - collections::BTreeSet, fmt::{self, Debug, Display, Formatter}, fs::File, io::{self, Write}, @@ -46,6 +45,8 @@ pub(crate) use external::RESOURCES_PATH; pub use external::{LoadError, Loadable}; pub(crate) use fuse::{DropSwitch, Fuse, ObservableFuse, SharedFuse}; pub(crate) use round_robin::WeightedRoundRobin; +#[cfg(test)] +pub(crate) use tests::extract_metric_names; /// DNS resolution error. #[derive(Debug, Error)] @@ -491,29 +492,30 @@ impl Peel for Either<(A, G), (B, F)> { } } -/// Extracts the names of all metrics contained in a prometheus-formatted metrics snapshot. -fn extract_metric_names<'a>(raw: &'a str) -> BTreeSet<&'a str> { - raw.lines() - .filter_map(|line| { - let trimmed = line.trim(); - if trimmed.is_empty() || trimmed.starts_with('#') { - None - } else { - let (full_id, _) = trimmed.split_once(' ')?; - let id = full_id.split_once('{').map(|v| v.0).unwrap_or(full_id); - Some(id) - } - }) - .collect() -} - #[cfg(test)] mod tests { - use std::{collections::BTreeSet, sync::Arc, time::Duration}; + use std::{collections::HashSet, sync::Arc, time::Duration}; use prometheus::IntGauge; - use super::{extract_metric_names, wait_for_arc_drop, xor, TokenizedCount}; + use super::{wait_for_arc_drop, xor, TokenizedCount}; + + /// Extracts the names of all metrics contained in a prometheus-formatted metrics snapshot. + + pub(crate) fn extract_metric_names<'a>(raw: &'a str) -> HashSet<&'a str> { + raw.lines() + .filter_map(|line| { + let trimmed = line.trim(); + if trimmed.is_empty() || trimmed.starts_with('#') { + None + } else { + let (full_id, _) = trimmed.split_once(' ')?; + let id = full_id.split_once('{').map(|v| v.0).unwrap_or(full_id); + Some(id) + } + }) + .collect() + } #[test] fn xor_works() { @@ -610,7 +612,7 @@ mod tests { let extracted = extract_metric_names(sample); - let mut expected = BTreeSet::new(); + let mut expected = HashSet::new(); expected.insert("chain_height"); expected.insert("consensus_current_era"); expected.insert("consumed_ram_bytes"); diff --git a/node/src/testing/metrics-1.5.txt b/resources/metrics-1.5.txt similarity index 100% rename from node/src/testing/metrics-1.5.txt rename to resources/metrics-1.5.txt From f9dec55f8acbf09e5d49fcaff36b51d875e26184 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Apr 2023 15:48:26 +0200 Subject: [PATCH 385/735] Fix clippy lint in `extract_metric_names` --- node/src/utils.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/utils.rs b/node/src/utils.rs index beec76b9cf..bb0ad82d83 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -475,7 +475,7 @@ mod tests { /// Extracts the names of all metrics contained in a prometheus-formatted metrics snapshot. - pub(crate) fn extract_metric_names<'a>(raw: &'a str) -> HashSet<&'a str> { + pub(crate) fn extract_metric_names(raw: &str) -> HashSet<&str> { raw.lines() .filter_map(|line| { let trimmed = line.trim(); From 6dfd53572d9dec9be81024bda159b641d9e83d2d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Apr 2023 17:30:41 +0200 Subject: [PATCH 386/735] Remove `wait_for_component_initialization` macro --- node/src/reactor.rs | 11 ++++++++ node/src/reactor/main_reactor.rs | 17 ++++++++++-- node/src/reactor/main_reactor/tests.rs | 30 ++++++--------------- node/src/testing/condition_check_reactor.rs | 4 +++ node/src/testing/filter_reactor.rs | 4 +++ node/src/testing/network.rs | 27 +++++++++++++++++++ 6 files changed, 69 insertions(+), 24 deletions(-) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 22bb7cd61f..dca257747b 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -58,6 +58,8 @@ use tokio::time::{Duration, Instant}; use tracing::{debug, debug_span, error, info, instrument, trace, warn, Span}; use tracing_futures::Instrument; +#[cfg(test)] +use crate::components::ComponentState; use crate::{ components::{ block_accumulator, deploy_acceptor, @@ -281,6 +283,15 @@ pub(crate) trait Reactor: Sized { /// Instructs the reactor to update performance metrics, if any. fn update_metrics(&mut self, _event_queue_handle: EventQueueHandle) {} + + /// Returns the state of a named components. + /// + /// May return `None` if the component cannot be found, or if the reactor does not support + /// querying component states. + #[cfg(test)] + fn get_component_state(&self, _name: &str) -> Option<&ComponentState> { + None + } } /// A reactor event type. diff --git a/node/src/reactor/main_reactor.rs b/node/src/reactor/main_reactor.rs index 054511e195..81cb757181 100644 --- a/node/src/reactor/main_reactor.rs +++ b/node/src/reactor/main_reactor.rs @@ -27,8 +27,6 @@ use tracing::{debug, error, info, warn}; use casper_types::{EraId, PublicKey, TimeDiff, Timestamp, U512}; -#[cfg(test)] -use crate::testing::network::NetworkedReactor; use crate::{ components::{ block_accumulator::{self, BlockAccumulator}, @@ -78,6 +76,11 @@ use crate::{ utils::{Source, WithDir}, NodeRng, }; +#[cfg(test)] +use crate::{ + components::{ComponentState, InitializedComponent}, + testing::network::NetworkedReactor, +}; pub use config::Config; pub(crate) use error::Error; pub(crate) use event::MainEvent; @@ -1179,6 +1182,16 @@ impl reactor::Reactor for MainReactor { self.event_queue_metrics .record_event_queue_counts(&event_queue_handle) } + + #[cfg(test)] + fn get_component_state(&self, name: &str) -> Option<&ComponentState> { + match name { + "rest_server" => Some(>::state( + &self.rest_server, + )), + _ => None, + } + } } impl MainReactor { diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index 562aac4868..9e32731d75 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -27,7 +27,7 @@ use crate::{ }, gossiper, network, storage, upgrade_watcher::NextUpgrade, - InitializedComponent, + ComponentState, }, effect::{ incoming::ConsensusMessageIncoming, @@ -915,26 +915,6 @@ async fn empty_block_validation_regression() { } } -/// Waits until all node have at least initialized the given component. -/// -/// Expects the ident of a -macro_rules! wait_for_component_initialization { - ($net:expr, $rng:expr, $component:ident) => { - $net.settle_on( - $rng, - |net| { - net.values().all(|runner| { - InitializedComponent::::is_initialized( - &(runner.main_reactor().$component), - ) - }) - }, - Duration::from_secs(60), - ) - .await; - }; -} - #[tokio::test] async fn all_metrics_from_1_5_are_present() { testing::init_logging(); @@ -947,7 +927,13 @@ async fn all_metrics_from_1_5_are_present() { .await .expect("network initialization failed"); - wait_for_component_initialization!(net, &mut rng, rest_server); + net.settle_on_component_state( + &mut rng, + "rest_server", + &ComponentState::Initialized, + Duration::from_secs(59), + ) + .await; // Get the node ID. let node_id = *net.nodes().keys().next().unwrap(); diff --git a/node/src/testing/condition_check_reactor.rs b/node/src/testing/condition_check_reactor.rs index 8fe672c208..d019a15c1a 100644 --- a/node/src/testing/condition_check_reactor.rs +++ b/node/src/testing/condition_check_reactor.rs @@ -102,6 +102,10 @@ impl Reactor for ConditionCheckReactor { } self.reactor.dispatch_event(effect_builder, rng, event) } + + fn get_component_state(&self, name: &str) -> Option<&crate::components::ComponentState> { + self.inner().get_component_state(name) + } } impl Finalize for ConditionCheckReactor { diff --git a/node/src/testing/filter_reactor.rs b/node/src/testing/filter_reactor.rs index bb73de3419..f28d86e44b 100644 --- a/node/src/testing/filter_reactor.rs +++ b/node/src/testing/filter_reactor.rs @@ -80,6 +80,10 @@ impl Reactor for FilterReactor { Either::Right(event) => self.reactor.dispatch_event(effect_builder, rng, event), } } + + fn get_component_state(&self, name: &str) -> Option<&crate::components::ComponentState> { + self.inner().get_component_state(name) + } } impl Finalize for FilterReactor { diff --git a/node/src/testing/network.rs b/node/src/testing/network.rs index c4c667cba3..c9dac8026c 100644 --- a/node/src/testing/network.rs +++ b/node/src/testing/network.rs @@ -21,6 +21,7 @@ use tracing_futures::Instrument; use super::ConditionCheckReactor; use crate::{ + components::ComponentState, effect::{EffectBuilder, Effects}, reactor::{Finalize, Reactor, Runner, TryCrankOutcome}, tls::KeyFingerprint, @@ -417,6 +418,32 @@ where .unwrap_or_else(|_| panic!("network did not settle on condition within {:?}", within)) } + /// Keeps cranking the network until every reactor's specified component is in the given state. + /// + /// # Panics + /// + /// Panics if any reactor returns `None` on its [`Reactor::get_component_state()`] call. + pub(crate) async fn settle_on_component_state( + &mut self, + rng: &mut TestRng, + name: &str, + state: &ComponentState, + timeout: Duration, + ) { + self.settle_on( + rng, + |net| { + net.values() + .all(|runner| match runner.reactor().get_component_state(name) { + Some(actual_state) => actual_state == state, + None => panic!("unknown or unsupported component: {}", name), + }) + }, + timeout, + ) + .await; + } + /// Starts a background process that will crank all nodes until stopped. /// /// Returns a future that will, once polled, stop all cranking and return the network and the From 00365d219514dc5581521a512c7b77658b958784 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 4 May 2023 17:42:46 +0200 Subject: [PATCH 387/735] Fix clippy issue. `rlimit` module handles linux/macos differencies, so removing this line makes clippy happy. --- node/src/reactor.rs | 1 - 1 file changed, 1 deletion(-) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index f3117c61f2..1d43c18e68 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -58,7 +58,6 @@ use tokio::time::{Duration, Instant}; use tracing::{debug, debug_span, error, info, instrument, trace, warn, Span}; use tracing_futures::Instrument; -#[cfg(target_os = "linux")] use crate::utils::rlimit::{Limit, OpenFiles, ResourceLimit}; use crate::{ From 9d91f49de989e472132218e7231a3ec4245bec56 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 4 May 2023 17:42:46 +0200 Subject: [PATCH 388/735] Add "Delete" transform. This adds a "Delete" transform, which when applied, removes a key from the tip of a trie. --- .../src/core/engine_state/execution_effect.rs | 1 + execution_engine/src/core/engine_state/mod.rs | 15 ++++++++++++--- execution_engine/src/core/engine_state/op.rs | 3 +++ .../src/core/runtime_context/mod.rs | 12 ++++++++++++ execution_engine/src/core/tracking_copy/mod.rs | 6 ++++++ execution_engine/src/shared/transform.rs | 5 +++++ .../src/storage/global_state/mod.rs | 18 +++++++++++++++++- types/src/execution_result.rs | 12 ++++++++++++ types/src/key.rs | 10 ++++++++++ 9 files changed, 78 insertions(+), 4 deletions(-) diff --git a/execution_engine/src/core/engine_state/execution_effect.rs b/execution_engine/src/core/engine_state/execution_effect.rs index b1b17ecf2b..193d09b4c5 100644 --- a/execution_engine/src/core/engine_state/execution_effect.rs +++ b/execution_engine/src/core/engine_state/execution_effect.rs @@ -31,6 +31,7 @@ impl From for ExecutionEffect { | Transform::AddUInt256(_) | Transform::AddUInt512(_) | Transform::AddKeys(_) => ops.insert_add(key, Op::Add), + Transform::Delete => ops.insert_add(key, Op::Delete), }; transforms.insert_add(key, transform); } diff --git a/execution_engine/src/core/engine_state/mod.rs b/execution_engine/src/core/engine_state/mod.rs index c3c7161511..180256bf22 100644 --- a/execution_engine/src/core/engine_state/mod.rs +++ b/execution_engine/src/core/engine_state/mod.rs @@ -28,6 +28,7 @@ use std::{ rc::Rc, }; +use itertools::Itertools; use num::Zero; use num_rational::Ratio; use once_cell::sync::Lazy; @@ -429,7 +430,9 @@ where let withdraw_keys = tracking_copy .borrow_mut() .get_keys(correlation_id, &KeyTag::Withdraw) - .map_err(|_| Error::FailedToGetWithdrawKeys)?; + .map_err(|_| Error::FailedToGetWithdrawKeys)? + .into_iter() + .collect_vec(); let (unbonding_delay, current_era_id) = { let auction_contract = tracking_copy @@ -464,12 +467,12 @@ where (delay, era_id) }; - for key in withdraw_keys { + for key in &withdraw_keys { // Transform only those withdraw purses that are still to be // processed in the unbonding queue. let withdraw_purses = tracking_copy .borrow_mut() - .read(correlation_id, &key) + .read(correlation_id, key) .map_err(|_| Error::FailedToGetWithdrawKeys)? .ok_or(Error::FailedToGetStoredWithdraws)? .as_withdraw() @@ -502,6 +505,12 @@ where .borrow_mut() .write(unbonding_key, StoredValue::Unbonding(unbonding_purses)); } + + // Post-migration clean up + + for withdraw_key in withdraw_keys { + tracking_copy.borrow_mut().delete(withdraw_key); + } } // We insert the new unbonding delay once the purses to be paid out have been transformed diff --git a/execution_engine/src/core/engine_state/op.rs b/execution_engine/src/core/engine_state/op.rs index 28a187dc66..c8936f343c 100644 --- a/execution_engine/src/core/engine_state/op.rs +++ b/execution_engine/src/core/engine_state/op.rs @@ -14,6 +14,8 @@ pub enum Op { Write, /// Add a value into a `Key`. Add, + /// Delete a value under a `Key`. + Delete, /// No operation. NoOp, } @@ -57,6 +59,7 @@ impl From<&Op> for casper_types::OpKind { Op::Write => casper_types::OpKind::Write, Op::Add => casper_types::OpKind::Add, Op::NoOp => casper_types::OpKind::NoOp, + Op::Delete => casper_types::OpKind::Delete, } } } diff --git a/execution_engine/src/core/runtime_context/mod.rs b/execution_engine/src/core/runtime_context/mod.rs index 2c6604c3b4..fc8ce5fce1 100644 --- a/execution_engine/src/core/runtime_context/mod.rs +++ b/execution_engine/src/core/runtime_context/mod.rs @@ -924,6 +924,18 @@ where Ok(()) } + /// Deletes a key from the global state. + /// + /// Use with caution - there is no validation done as the key is assumed to be validated + /// already. + #[allow(dead_code)] + pub(crate) fn delete_gs_unsafe(&mut self, key: K) + where + K: Into, + { + self.tracking_copy.borrow_mut().delete(key.into()); + } + /// Writes data to a global state and charges for bytes stored. /// /// This method performs full validation of the key to be written. diff --git a/execution_engine/src/core/tracking_copy/mod.rs b/execution_engine/src/core/tracking_copy/mod.rs index 3608398da3..acb7c02d54 100644 --- a/execution_engine/src/core/tracking_copy/mod.rs +++ b/execution_engine/src/core/tracking_copy/mod.rs @@ -353,6 +353,12 @@ impl> TrackingCopy { self.journal.push((normalized_key, Transform::Write(value))); } + /// Deletes a `key`. + pub fn delete(&mut self, key: Key) { + let normalized_key = key.normalize(); + self.journal.push((normalized_key, Transform::Delete)); + } + /// Ok(None) represents missing key to which we want to "add" some value. /// Ok(Some(unit)) represents successful operation. /// Err(error) is reserved for unexpected errors when accessing global diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index 3a724a1818..fd1b52d420 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -86,6 +86,8 @@ pub enum Transform { /// /// This transform assumes that the existing stored value is either an Account or a Contract. AddKeys(NamedKeys), + /// Deletes a key. + Delete, /// Represents the case where applying a transform would cause an error. #[data_size(skip)] Failure(Error), @@ -232,6 +234,7 @@ impl Transform { Err(StoredValueTypeMismatch::new(expected, found).into()) } }, + Transform::Delete => unreachable!("Delete operation can't be applied"), Transform::Failure(error) => Err(error), } } @@ -282,6 +285,7 @@ impl Add for Transform { Ok(new_value) => Transform::Write(new_value), } } + (Transform::Delete, _b) => Transform::Delete, (Transform::AddInt32(i), b) => match b { Transform::AddInt32(j) => Transform::AddInt32(i.wrapping_add(j)), Transform::AddUInt64(j) => Transform::AddUInt64(j.wrapping_add(i as u64)), @@ -389,6 +393,7 @@ impl From<&Transform> for casper_types::Transform { .collect(), ), Transform::Failure(error) => casper_types::Transform::Failure(error.to_string()), + Transform::Delete => casper_types::Transform::Delete, } } } diff --git a/execution_engine/src/storage/global_state/mod.rs b/execution_engine/src/storage/global_state/mod.rs index 46c501c763..b4a1ee0ecc 100644 --- a/execution_engine/src/storage/global_state/mod.rs +++ b/execution_engine/src/storage/global_state/mod.rs @@ -32,7 +32,7 @@ use crate::{ }, }; -use super::trie_store::operations::DeleteResult; +use super::trie_store::operations::{delete, DeleteResult}; /// A trait expressing the reading of state. This trait is used to abstract the underlying store. pub trait StateReader { @@ -195,6 +195,22 @@ where }; for (key, transform) in effects.into_iter() { + if transform == Transform::Delete { + match delete::<_, _, _, _, E>(correlation_id, &mut txn, store, &state_root, &key)? { + DeleteResult::Deleted(new_state_root) => { + state_root = new_state_root; + } + DeleteResult::DoesNotExist => { + return Err(CommitError::KeyNotFound(key).into()); + } + DeleteResult::RootNotFound => { + return Err(CommitError::RootNotFound(state_root).into()); + } + } + // Exit early and avoid reading the value under a key if we know we're going to delete + // it. + continue; + } let read_result = read::<_, _, _, _, E>(correlation_id, &txn, store, &state_root, &key)?; let value = match (read_result, transform) { diff --git a/types/src/execution_result.rs b/types/src/execution_result.rs index cc73d9ec91..5129806a45 100644 --- a/types/src/execution_result.rs +++ b/types/src/execution_result.rs @@ -63,6 +63,7 @@ enum OpTag { Write = 1, Add = 2, NoOp = 3, + Delete = 4, } impl TryFrom for OpTag { @@ -95,6 +96,7 @@ enum TransformTag { AddKeys = 16, Failure = 17, WriteUnbonding = 18, + Delete = 19, } impl TryFrom for TransformTag { @@ -438,6 +440,8 @@ pub enum OpKind { Add, /// An operation which has no effect. NoOp, + /// A delete operation. + Delete, } impl OpKind { @@ -447,6 +451,7 @@ impl OpKind { OpKind::Write => OpTag::Write, OpKind::Add => OpTag::Add, OpKind::NoOp => OpTag::NoOp, + OpKind::Delete => OpTag::Delete, } } } @@ -471,6 +476,7 @@ impl FromBytes for OpKind { OpTag::Write => Ok((OpKind::Write, remainder)), OpTag::Add => Ok((OpKind::Add, remainder)), OpTag::NoOp => Ok((OpKind::NoOp, remainder)), + OpTag::Delete => Ok((OpKind::Delete, remainder)), } } } @@ -554,6 +560,8 @@ pub enum Transform { Failure(String), /// Writes the given Unbonding to global state. WriteUnbonding(Vec), + /// Deletes a key. + Delete, } impl Transform { @@ -578,6 +586,7 @@ impl Transform { Transform::AddKeys(_) => TransformTag::AddKeys, Transform::Failure(_) => TransformTag::Failure, Transform::WriteUnbonding(_) => TransformTag::WriteUnbonding, + Transform::Delete => TransformTag::Delete, } } } @@ -638,6 +647,7 @@ impl ToBytes for Transform { Transform::WriteUnbonding(value) => { buffer.extend(value.to_bytes()?); } + Transform::Delete => {} } Ok(buffer) } @@ -663,6 +673,7 @@ impl ToBytes for Transform { Transform::WriteBid(value) => value.serialized_length(), Transform::WriteWithdraw(value) => value.serialized_length(), Transform::WriteUnbonding(value) => value.serialized_length(), + Transform::Delete => 0, }; U8_SERIALIZED_LENGTH + body_len } @@ -738,6 +749,7 @@ impl FromBytes for Transform { as FromBytes>::from_bytes(remainder)?; Ok((Transform::WriteUnbonding(unbonding_purses), remainder)) } + TransformTag::Delete => Ok((Transform::Delete, remainder)), } } } diff --git a/types/src/key.rs b/types/src/key.rs index f092a74a3b..addede0246 100644 --- a/types/src/key.rs +++ b/types/src/key.rs @@ -575,6 +575,16 @@ impl Key { } false } + + /// Returns a reference to the inner [`AccountHash`] if `self` is of type + /// [`Key::Withdraw`], otherwise returns `None`. + pub fn as_withdraw(&self) -> Option<&AccountHash> { + if let Self::Withdraw(v) = self { + Some(v) + } else { + None + } + } } impl Display for Key { From b1c12684f752c3641b5298d6784e27edda574153 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 4 May 2023 18:50:05 +0200 Subject: [PATCH 389/735] Remove unused Withdraw/Unbond entries. After performing initial upgrade from Withdraw -> Unbond key space, withdraw keys are purged from the tip of the trie. After that, once an unbonding queue is empty, then given entry is also removed from the trie. --- .../src/core/runtime/auction_internal.rs | 17 ++++-- .../src/core/runtime_context/mod.rs | 1 - .../tests/src/test/regression/ee_1119.rs | 4 +- .../tests/src/test/regression/ee_1120.rs | 10 +--- .../src/test/system_contracts/auction/bids.rs | 55 ++++++++++++++++++- .../test/system_contracts/auction_bidding.rs | 15 +---- 6 files changed, 70 insertions(+), 32 deletions(-) diff --git a/execution_engine/src/core/runtime/auction_internal.rs b/execution_engine/src/core/runtime/auction_internal.rs index 5a66e83aec..700c1edfe2 100644 --- a/execution_engine/src/core/runtime/auction_internal.rs +++ b/execution_engine/src/core/runtime/auction_internal.rs @@ -98,12 +98,17 @@ where account_hash: AccountHash, unbonding_purses: Vec, ) -> Result<(), Error> { - self.context - .metered_write_gs_unsafe( - Key::Unbond(account_hash), - StoredValue::Unbonding(unbonding_purses), - ) - .map_err(|exec_error| >::from(exec_error).unwrap_or(Error::Storage)) + if unbonding_purses.is_empty() { + self.context.delete_gs_unsafe(Key::Unbond(account_hash)); + Ok(()) + } else { + self.context + .metered_write_gs_unsafe( + Key::Unbond(account_hash), + StoredValue::Unbonding(unbonding_purses), + ) + .map_err(|exec_error| >::from(exec_error).unwrap_or(Error::Storage)) + } } fn record_era_info(&mut self, _era_id: EraId, era_summary: EraInfo) -> Result<(), Error> { diff --git a/execution_engine/src/core/runtime_context/mod.rs b/execution_engine/src/core/runtime_context/mod.rs index fc8ce5fce1..97147c8fc4 100644 --- a/execution_engine/src/core/runtime_context/mod.rs +++ b/execution_engine/src/core/runtime_context/mod.rs @@ -928,7 +928,6 @@ where /// /// Use with caution - there is no validation done as the key is assumed to be validated /// already. - #[allow(dead_code)] pub(crate) fn delete_gs_unsafe(&mut self, key: K) where K: Into, diff --git a/execution_engine_testing/tests/src/test/regression/ee_1119.rs b/execution_engine_testing/tests/src/test/regression/ee_1119.rs index 2c1dce3c68..561fa9116e 100644 --- a/execution_engine_testing/tests/src/test/regression/ee_1119.rs +++ b/execution_engine_testing/tests/src/test/regression/ee_1119.rs @@ -233,11 +233,11 @@ fn should_run_ee_1119_dont_slash_delegated_validators() { builder.exec(slash_request_2).expect_success().commit(); let unbond_purses: UnbondingPurses = builder.get_unbonds(); - assert_eq!(unbond_purses.len(), 1); + assert!(unbond_purses.is_empty()); assert!(!unbond_purses.contains_key(&*DEFAULT_ACCOUNT_ADDR)); - assert!(unbond_purses.get(&VALIDATOR_1_ADDR).unwrap().is_empty()); + assert!(!unbond_purses.contains_key(&VALIDATOR_1_ADDR)); let bids: Bids = builder.get_bids(); let validator_1_bid = bids.get(&VALIDATOR_1).unwrap(); diff --git a/execution_engine_testing/tests/src/test/regression/ee_1120.rs b/execution_engine_testing/tests/src/test/regression/ee_1120.rs index a69fe33b3e..a7d399fb42 100644 --- a/execution_engine_testing/tests/src/test/regression/ee_1120.rs +++ b/execution_engine_testing/tests/src/test/regression/ee_1120.rs @@ -355,12 +355,6 @@ fn should_run_ee_1120_slash_delegators() { assert!(validator_1_bid.staked_amount().is_zero()); let unbond_purses_after: UnbondingPurses = builder.get_unbonds(); - assert!(unbond_purses_after - .get(&VALIDATOR_1_ADDR) - .unwrap() - .is_empty()); - assert!(unbond_purses_after - .get(&VALIDATOR_2_ADDR) - .unwrap() - .is_empty()); + assert!(!unbond_purses_after.contains_key(&VALIDATOR_1_ADDR)); + assert!(!unbond_purses_after.contains_key(&VALIDATOR_2_ADDR)); } diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index 21e42ad999..839c165249 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -25,7 +25,7 @@ use casper_execution_engine::{ }, execution, }, - shared::{system_config::SystemConfig, wasm_config::WasmConfig}, + shared::{system_config::SystemConfig, transform::Transform, wasm_config::WasmConfig}, storage::global_state::in_memory::InMemoryGlobalState, }; use casper_types::{ @@ -41,7 +41,7 @@ use casper_types::{ ARG_NEW_VALIDATOR, ARG_PUBLIC_KEY, ARG_VALIDATOR, ERA_ID_KEY, INITIAL_ERA_ID, }, }, - EraId, Motes, ProtocolVersion, PublicKey, RuntimeArgs, SecretKey, U256, U512, + EraId, KeyTag, Motes, ProtocolVersion, PublicKey, RuntimeArgs, SecretKey, U256, U512, }; use crate::lmdb_fixture; @@ -3523,8 +3523,12 @@ fn should_continue_auction_state_from_release_1_4_x() { let (mut builder, lmdb_fixture_state, _temp_dir) = lmdb_fixture::builder_from_global_state_fixture(lmdb_fixture::RELEASE_1_4_3); - let withdraw_purses: WithdrawPurses = builder.get_withdraw_purses(); + let withdraw_keys_before = builder + .get_keys(KeyTag::Withdraw) + .expect("should query withdraw keys"); + assert_eq!(withdraw_keys_before.len(), 1); + let withdraw_purses: WithdrawPurses = builder.get_withdraw_purses(); assert_eq!(withdraw_purses.len(), 1); let previous_protocol_version = lmdb_fixture_state.genesis_protocol_version(); @@ -3548,6 +3552,35 @@ fn should_continue_auction_state_from_release_1_4_x() { .upgrade_with_upgrade_request(*builder.get_engine_state().config(), &mut upgrade_request) .expect_upgrade_success(); + let upgrade_result = builder + .get_upgrade_result(0) + .expect("should have upgrade result") + .as_ref() + .expect("upgrade should work"); + let delete_keys_after_upgrade = upgrade_result + .execution_effect + .transforms + .iter() + .filter_map(|(key, transform)| { + if transform == &Transform::Delete { + Some(key) + } else { + None + } + }) + .collect::>(); + + assert!(!delete_keys_after_upgrade.is_empty()); + assert!(delete_keys_after_upgrade + .iter() + .all(|key| key.as_withdraw().is_some())); + + // Ensure withdraw keys are purged + let withdraw_keys_after = builder + .get_keys(KeyTag::Withdraw) + .expect("should query withdraw keys"); + assert_eq!(withdraw_keys_after.len(), 0); + let unbonding_purses: UnbondingPurses = builder.get_unbonds(); assert_eq!(unbonding_purses.len(), 1); @@ -3717,6 +3750,22 @@ fn should_continue_auction_state_from_release_1_4_x() { redelegated_amount_1, U512::from(UNDELEGATE_AMOUNT_1 + DEFAULT_MINIMUM_DELEGATION_AMOUNT) ); + + // No new withdraw keys created after processing the auction + let withdraw_keys = builder + .get_keys(KeyTag::Withdraw) + .expect("should query withdraw keys"); + assert_eq!(withdraw_keys.len(), 0); + + // Unbond keys are deleted + let unbond_keys = builder + .get_keys(KeyTag::Unbond) + .expect("should query withdraw keys"); + assert_eq!( + unbond_keys.len(), + 0, + "auction state continued and empty unbond queue should be purged" + ); } #[ignore] diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs b/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs index 5d7c7a3110..805d0e8ea1 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs @@ -181,10 +181,7 @@ fn should_run_successful_bond_and_unbond_and_slashing() { builder.exec(exec_request_5).expect_success().commit(); let unbond_purses: UnbondingPurses = builder.get_unbonds(); - assert!(unbond_purses - .get(&*DEFAULT_ACCOUNT_ADDR) - .unwrap() - .is_empty()); + assert!(!unbond_purses.contains_key(&*DEFAULT_ACCOUNT_ADDR)); let bids: Bids = builder.get_bids(); let default_account_bid = bids.get(&DEFAULT_ACCOUNT_PUBLIC_KEY).unwrap(); @@ -540,10 +537,7 @@ fn should_run_successful_bond_and_unbond_with_release() { ); let unbond_purses: UnbondingPurses = builder.get_unbonds(); - assert!(unbond_purses - .get(&*DEFAULT_ACCOUNT_ADDR) - .unwrap() - .is_empty()); + assert!(!unbond_purses.contains_key(&*DEFAULT_ACCOUNT_ADDR)); let bids: Bids = builder.get_bids(); assert!(!bids.is_empty()); @@ -733,10 +727,7 @@ fn should_run_successful_unbond_funds_after_changing_unbonding_delay() { ); let unbond_purses: UnbondingPurses = builder.get_unbonds(); - assert!(unbond_purses - .get(&*DEFAULT_ACCOUNT_ADDR) - .unwrap() - .is_empty()); + assert!(!unbond_purses.contains_key(&*DEFAULT_ACCOUNT_ADDR)); let bids: Bids = builder.get_bids(); assert!(!bids.is_empty()); From eee2083b966bb111eb2cf37d877b3d9a1822c02b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 5 May 2023 11:31:50 +0200 Subject: [PATCH 390/735] Clean ups and more tests. --- .../src/core/runtime/auction_internal.rs | 8 +- .../src/core/tracking_copy/mod.rs | 2 +- execution_engine/src/shared/transform.rs | 108 ++++++++++++++++-- 3 files changed, 100 insertions(+), 18 deletions(-) diff --git a/execution_engine/src/core/runtime/auction_internal.rs b/execution_engine/src/core/runtime/auction_internal.rs index 700c1edfe2..2daec67d14 100644 --- a/execution_engine/src/core/runtime/auction_internal.rs +++ b/execution_engine/src/core/runtime/auction_internal.rs @@ -98,15 +98,13 @@ where account_hash: AccountHash, unbonding_purses: Vec, ) -> Result<(), Error> { + let unbond_key = Key::Unbond(account_hash); if unbonding_purses.is_empty() { - self.context.delete_gs_unsafe(Key::Unbond(account_hash)); + self.context.delete_gs_unsafe(unbond_key); Ok(()) } else { self.context - .metered_write_gs_unsafe( - Key::Unbond(account_hash), - StoredValue::Unbonding(unbonding_purses), - ) + .metered_write_gs_unsafe(unbond_key, StoredValue::Unbonding(unbonding_purses)) .map_err(|exec_error| >::from(exec_error).unwrap_or(Error::Storage)) } } diff --git a/execution_engine/src/core/tracking_copy/mod.rs b/execution_engine/src/core/tracking_copy/mod.rs index acb7c02d54..acff69bafd 100644 --- a/execution_engine/src/core/tracking_copy/mod.rs +++ b/execution_engine/src/core/tracking_copy/mod.rs @@ -354,7 +354,7 @@ impl> TrackingCopy { } /// Deletes a `key`. - pub fn delete(&mut self, key: Key) { + pub(crate) fn delete(&mut self, key: Key) { let normalized_key = key.normalize(); self.journal.push((normalized_key, Transform::Delete)); } diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index fd1b52d420..66cb9e8d46 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -170,23 +170,42 @@ impl Transform { /// Applies the transformation on a specified stored value instance. /// /// This method produces a new [`StoredValue`] instance based on the [`Transform`] variant. + /// + /// This method will panic if self is a [`Transform::Delete`] variant. pub fn apply(self, stored_value: StoredValue) -> Result { + match self.apply_optional(stored_value) { + Ok(Some(new_value)) => Ok(new_value), + Ok(None) => { + // Delete transform can't be handled here as it implies a stored value is present. + // Delete transforms should be handled before applying effects on stored values to + // avoid an unnecessary global state read. + unreachable!("Delete operation can't be applied"); + } + Err(error) => Err(error), + } + } + /// Applies the transformation on a specified stored value instance. + /// + /// This method produces a new [`StoredValue`] instance based on the [`Transform`] variant. If a + /// given transform is a [`Transform::Delete`] then `None` is returned as the [`StoredValue`] is + /// consumed but no new value is produced. + fn apply_optional(self, stored_value: StoredValue) -> Result, Error> { match self { - Transform::Identity => Ok(stored_value), - Transform::Write(new_value) => Ok(new_value), - Transform::AddInt32(to_add) => wrapping_addition(stored_value, to_add), - Transform::AddUInt64(to_add) => wrapping_addition(stored_value, to_add), - Transform::AddUInt128(to_add) => wrapping_addition(stored_value, to_add), - Transform::AddUInt256(to_add) => wrapping_addition(stored_value, to_add), - Transform::AddUInt512(to_add) => wrapping_addition(stored_value, to_add), + Transform::Identity => Ok(Some(stored_value)), + Transform::Write(new_value) => Ok(Some(new_value)), + Transform::AddInt32(to_add) => Ok(Some(wrapping_addition(stored_value, to_add)?)), + Transform::AddUInt64(to_add) => Ok(Some(wrapping_addition(stored_value, to_add)?)), + Transform::AddUInt128(to_add) => Ok(Some(wrapping_addition(stored_value, to_add)?)), + Transform::AddUInt256(to_add) => Ok(Some(wrapping_addition(stored_value, to_add)?)), + Transform::AddUInt512(to_add) => Ok(Some(wrapping_addition(stored_value, to_add)?)), Transform::AddKeys(mut keys) => match stored_value { StoredValue::Contract(mut contract) => { contract.named_keys_append(&mut keys); - Ok(StoredValue::Contract(contract)) + Ok(Some(StoredValue::Contract(contract))) } StoredValue::Account(mut account) => { account.named_keys_append(&mut keys); - Ok(StoredValue::Account(account)) + Ok(Some(StoredValue::Account(account))) } StoredValue::CLValue(cl_value) => { let expected = "Contract or Account".to_string(); @@ -234,7 +253,7 @@ impl Transform { Err(StoredValueTypeMismatch::new(expected, found).into()) } }, - Transform::Delete => unreachable!("Delete operation can't be applied"), + Transform::Delete => Ok(None), Transform::Failure(error) => Err(error), } } @@ -278,6 +297,8 @@ impl Add for Transform { (a @ Transform::Failure(_), _) => a, (_, b @ Transform::Failure(_)) => b, (_, b @ Transform::Write(_)) => b, + (_, Transform::Delete) => Transform::Delete, + (Transform::Delete, b) => b, (Transform::Write(v), b) => { // second transform changes value being written match b.apply(v) { @@ -285,7 +306,6 @@ impl Add for Transform { Ok(new_value) => Transform::Write(new_value), } } - (Transform::Delete, _b) => Transform::Delete, (Transform::AddInt32(i), b) => match b { Transform::AddInt32(j) => Transform::AddInt32(i.wrapping_add(j)), Transform::AddUInt64(j) => Transform::AddUInt64(j.wrapping_add(i as u64)), @@ -424,6 +444,7 @@ pub mod gens { buf.copy_from_slice(&u); Transform::AddUInt512(buf.into()) }), + Just(Transform::Delete) ] } } @@ -439,7 +460,7 @@ mod tests { }; use super::*; - use std::collections::BTreeMap; + use std::{collections::BTreeMap, convert::TryInto}; const ZERO_ARRAY: [u8; 32] = [0; 32]; const ZERO_PUBLIC_KEY: AccountHash = AccountHash::new(ZERO_ARRAY); @@ -484,6 +505,16 @@ mod tests { const ONE_U512: U512 = U512([1, 0, 0, 0, 0, 0, 0, 0]); const MAX_U512: U512 = U512([MAX_U64; 8]); + fn add_transforms(value: u32) -> Vec { + vec![ + Transform::AddInt32(value.try_into().expect("positive value")), + Transform::AddUInt64(value.into()), + Transform::AddUInt128(value.into()), + Transform::AddUInt256(value.into()), + Transform::AddUInt512(value.into()), + ] + } + #[test] fn i32_overflow() { let max = std::i32::MAX; @@ -873,4 +904,57 @@ mod tests { assert_eq!(ZERO_U512, add(MAX_U512, ONE_U512)); assert_eq!(MAX_U512 - 1, add(MAX_U512, MAX_U512)); } + + #[test] + fn delete_should_produce_correct_transform() { + { + // delete + write == write + let lhs = Transform::Delete; + let rhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); + + let new_transform = lhs + rhs.clone(); + assert_eq!(new_transform, rhs); + } + + { + // delete + identity == delete (delete modifies the global state, identity does not + // modify, so we need to preserve delete) + let new_transform = Transform::Delete + Transform::Identity; + assert_eq!(new_transform, Transform::Delete); + } + + { + // delete + failure == failure + let failure = Transform::Failure(Error::Serialization(bytesrepr::Error::Formatting)); + let new_transform = Transform::Delete + failure.clone(); + assert_eq!(new_transform, failure); + } + + { + // write + delete == delete + let lhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); + let rhs = Transform::Delete; + + let new_transform = lhs + rhs.clone(); + assert_eq!(new_transform, rhs); + } + + { + // add + delete == delete + for lhs in add_transforms(123) { + let rhs = Transform::Delete; + let new_transform = lhs + rhs.clone(); + assert_eq!(new_transform, rhs); + } + } + + { + // delete + add == add + for rhs in add_transforms(123) { + let lhs = Transform::Delete; + let new_transform = lhs + rhs.clone(); + assert_eq!(new_transform, rhs); + } + } + } } From 228baebbefb62c705a6cc90135d09ddc0246dab6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 5 May 2023 16:47:07 +0200 Subject: [PATCH 391/735] Verify we are not vulnerable to easy memory exhaustion attack on the networking layer and optimized read calls a little bit --- muxink/src/framing/length_delimited.rs | 4 +++- muxink/src/io.rs | 22 +++++++++++++++++++++- 2 files changed, 24 insertions(+), 2 deletions(-) diff --git a/muxink/src/framing/length_delimited.rs b/muxink/src/framing/length_delimited.rs index cdad8d8116..9241c2fce0 100644 --- a/muxink/src/framing/length_delimited.rs +++ b/muxink/src/framing/length_delimited.rs @@ -47,7 +47,9 @@ impl FrameDecoder for LengthDelimited { fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { let bytes_in_buffer = buffer.remaining(); if bytes_in_buffer < LENGTH_MARKER_SIZE { - return DecodeResult::Incomplete; + // Note: This is somewhat inefficient, as it results in two read calls per frame + // received, but accurate. It is up to the higher layer to reduce reads. + return DecodeResult::Remaining(LENGTH_MARKER_SIZE - bytes_in_buffer); } let data_length = u16::from_le_bytes( buffer[0..LENGTH_MARKER_SIZE] diff --git a/muxink/src/io.rs b/muxink/src/io.rs index 2e961f639b..a11539a2ba 100644 --- a/muxink/src/io.rs +++ b/muxink/src/io.rs @@ -90,7 +90,27 @@ where let next_read = match decoder.decode_frame(buffer) { DecodeResult::Item(frame) => return Poll::Ready(Some(Ok(frame))), DecodeResult::Incomplete => *max_read_buffer_increment, - DecodeResult::Remaining(remaining) => remaining.min(*max_read_buffer_increment), + DecodeResult::Remaining(remaining) => { + // We need to periodically have a completely empty buffer to avoid leaking + // memory, as only a call causing a reallocation will unlink already extracted + // `Bytes` from the shared `BytesMut` buffer. We always trigger this eventually + // by performing a large resize, preferably on an otherwise empty buffer. + + // The additional `.is_empty()` branch allows us to avoid having to _always_ + // perform two `read` calls. We are guaranteed an empty buffer the second time + // around. + + // Overall, it is hard to strike a decent trade-off here between minimizing + // `read` calls, avoiding copies and not being vulnerable to attacks causing + // massive memory allocations. It is possible that a `VecDeque` and more eager + // copying could be a better approach in some situations. + + if buffer.is_empty() { + *max_read_buffer_increment + } else { + remaining.min(*max_read_buffer_increment) + } + } DecodeResult::Failed(error) => { return Poll::Ready(Some(Err(io::Error::new(io::ErrorKind::Other, error)))) } From c6333411f0b7c079ef13de842eb5fe910dce2601 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 8 May 2023 15:28:53 +0200 Subject: [PATCH 392/735] Update schemas and fix tests --- resources/test/rpc_schema_hashing.json | 6 ++++-- resources/test/sse_data_schema.json | 8 +++++--- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/resources/test/rpc_schema_hashing.json b/resources/test/rpc_schema_hashing.json index bb54c37848..f54d2ec78f 100644 --- a/resources/test/rpc_schema_hashing.json +++ b/resources/test/rpc_schema_hashing.json @@ -2459,7 +2459,8 @@ "Read", "Write", "Add", - "NoOp" + "NoOp", + "Delete" ] }, "TransformEntry": { @@ -2494,7 +2495,8 @@ "Identity", "WriteContractWasm", "WriteContract", - "WriteContractPackage" + "WriteContractPackage", + "Delete" ] }, { diff --git a/resources/test/sse_data_schema.json b/resources/test/sse_data_schema.json index 8c77ad830e..bb7d70eaa1 100644 --- a/resources/test/sse_data_schema.json +++ b/resources/test/sse_data_schema.json @@ -1217,7 +1217,8 @@ "Read", "Write", "Add", - "NoOp" + "NoOp", + "Delete" ] }, "TransformEntry": { @@ -1252,7 +1253,8 @@ "Identity", "WriteContractWasm", "WriteContract", - "WriteContractPackage" + "WriteContractPackage", + "Delete" ] }, { @@ -2032,4 +2034,4 @@ } } } -} +} \ No newline at end of file From b51e2c79844651a6cc8e7aa1a45893539cfbd3a1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 8 May 2023 15:10:36 +0200 Subject: [PATCH 393/735] Apply @Fraser999's comments This changes transform API to return optional that indicates new value (if Some) or a deletion (if None). --- .../src/core/tracking_copy/mod.rs | 6 +- execution_engine/src/shared/transform.rs | 48 +++-- .../src/storage/global_state/lmdb.rs | 83 +++++++- .../src/storage/global_state/mod.rs | 109 ++++++---- .../src/storage/global_state/scratch.rs | 135 +++++++++--- .../test_support/src/wasm_test_builder.rs | 20 ++ .../tests/src/test/regression/ee_1120.rs | 55 +++-- .../src/test/system_contracts/auction/bids.rs | 4 +- .../test/system_contracts/auction_bidding.rs | 193 +++++++++++++++++- types/src/execution_result.rs | 3 +- 10 files changed, 534 insertions(+), 122 deletions(-) diff --git a/execution_engine/src/core/tracking_copy/mod.rs b/execution_engine/src/core/tracking_copy/mod.rs index acff69bafd..e57becff11 100644 --- a/execution_engine/src/core/tracking_copy/mod.rs +++ b/execution_engine/src/core/tracking_copy/mod.rs @@ -423,11 +423,15 @@ impl> TrackingCopy { }; match transform.clone().apply(current_value) { - Ok(new_value) => { + Ok(Some(new_value)) => { self.cache.insert_write(normalized_key, new_value); self.journal.push((normalized_key, transform)); Ok(AddResult::Success) } + Ok(None) => { + self.journal.push((normalized_key, transform)); + Ok(AddResult::Success) + } Err(transform::Error::TypeMismatch(type_mismatch)) => { Ok(AddResult::TypeMismatch(type_mismatch)) } diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index 66cb9e8d46..2462f0a522 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -167,29 +167,12 @@ where } impl Transform { - /// Applies the transformation on a specified stored value instance. - /// - /// This method produces a new [`StoredValue`] instance based on the [`Transform`] variant. - /// - /// This method will panic if self is a [`Transform::Delete`] variant. - pub fn apply(self, stored_value: StoredValue) -> Result { - match self.apply_optional(stored_value) { - Ok(Some(new_value)) => Ok(new_value), - Ok(None) => { - // Delete transform can't be handled here as it implies a stored value is present. - // Delete transforms should be handled before applying effects on stored values to - // avoid an unnecessary global state read. - unreachable!("Delete operation can't be applied"); - } - Err(error) => Err(error), - } - } /// Applies the transformation on a specified stored value instance. /// /// This method produces a new [`StoredValue`] instance based on the [`Transform`] variant. If a /// given transform is a [`Transform::Delete`] then `None` is returned as the [`StoredValue`] is /// consumed but no new value is produced. - fn apply_optional(self, stored_value: StoredValue) -> Result, Error> { + pub fn apply(self, stored_value: StoredValue) -> Result, Error> { match self { Transform::Identity => Ok(Some(stored_value)), Transform::Write(new_value) => Ok(Some(new_value)), @@ -253,7 +236,11 @@ impl Transform { Err(StoredValueTypeMismatch::new(expected, found).into()) } }, - Transform::Delete => Ok(None), + Transform::Delete => { + // Delete does not produce new values, it just consumes a stored value that it + // receives. + Ok(None) + } Transform::Failure(error) => Err(error), } } @@ -302,8 +289,9 @@ impl Add for Transform { (Transform::Write(v), b) => { // second transform changes value being written match b.apply(v) { + Ok(Some(new_value)) => Transform::Write(new_value), + Ok(None) => Transform::Delete, Err(error) => Transform::Failure(error), - Ok(new_value) => Transform::Write(new_value), } } (Transform::AddInt32(i), b) => match b { @@ -529,8 +517,18 @@ mod tests { let transform_overflow = Transform::AddInt32(max) + Transform::AddInt32(1); let transform_underflow = Transform::AddInt32(min) + Transform::AddInt32(-1); - assert_eq!(apply_overflow.expect("Unexpected overflow"), min_value); - assert_eq!(apply_underflow.expect("Unexpected underflow"), max_value); + assert_eq!( + apply_overflow + .expect("Unexpected overflow") + .expect("New value"), + min_value + ); + assert_eq!( + apply_underflow + .expect("Unexpected underflow") + .expect("New value"), + max_value + ); assert_eq!(transform_overflow, min.into()); assert_eq!(transform_underflow, max.into()); @@ -563,9 +561,9 @@ mod tests { let transform_overflow_uint = max_transform + one_transform; let transform_underflow = min_transform + Transform::AddInt32(-1); - assert_eq!(apply_overflow, Ok(zero_value.clone())); - assert_eq!(apply_overflow_uint, Ok(zero_value)); - assert_eq!(apply_underflow, Ok(max_value)); + assert_eq!(apply_overflow, Ok(Some(zero_value.clone()))); + assert_eq!(apply_overflow_uint, Ok(Some(zero_value))); + assert_eq!(apply_underflow, Ok(Some(max_value))); assert_eq!(transform_overflow, zero.into()); assert_eq!(transform_overflow_uint, zero.into()); diff --git a/execution_engine/src/storage/global_state/lmdb.rs b/execution_engine/src/storage/global_state/lmdb.rs index dab903d229..577741b75a 100644 --- a/execution_engine/src/storage/global_state/lmdb.rs +++ b/execution_engine/src/storage/global_state/lmdb.rs @@ -92,7 +92,7 @@ impl LmdbGlobalState { &self, correlation_id: CorrelationId, prestate_hash: Digest, - stored_values: HashMap, + stored_values: HashMap>, ) -> Result { let scratch_trie = self.get_scratch_store(); let new_state_root = put_stored_values::<_, _, error::Error>( @@ -329,6 +329,8 @@ impl StateProvider for LmdbGlobalState { #[cfg(test)] mod tests { + use std::{collections::BTreeSet, iter::FromIterator}; + use lmdb::DatabaseFlags; use tempfile::tempdir; @@ -360,24 +362,32 @@ mod tests { ] } + const KEY_ACCOUNT_1: Key = Key::Account(AccountHash::new([1u8; 32])); + const KEY_ACCOUNT_2: Key = Key::Account(AccountHash::new([2u8; 32])); + const KEY_ACCOUNT_3: Key = Key::Account(AccountHash::new([3u8; 32])); + fn create_test_pairs_updated() -> [TestPair; 3] { [ TestPair { - key: Key::Account(AccountHash::new([1u8; 32])), + key: KEY_ACCOUNT_1, value: StoredValue::CLValue(CLValue::from_t("one".to_string()).unwrap()), }, TestPair { - key: Key::Account(AccountHash::new([2u8; 32])), + key: KEY_ACCOUNT_2, value: StoredValue::CLValue(CLValue::from_t("two".to_string()).unwrap()), }, TestPair { - key: Key::Account(AccountHash::new([3u8; 32])), + key: KEY_ACCOUNT_3, value: StoredValue::CLValue(CLValue::from_t(3_i32).unwrap()), }, ] } - fn create_test_state(pairs_creator: fn() -> [TestPair; 2]) -> (LmdbGlobalState, Digest) { + fn create_test_state(pairs_creator: F) -> (LmdbGlobalState, Digest) + where + T: AsRef<[TestPair]>, + F: FnOnce() -> T, + { let correlation_id = CorrelationId::new(); let temp_dir = tempdir().unwrap(); let environment = Arc::new( @@ -397,7 +407,7 @@ mod tests { { let mut txn = ret.environment.create_read_write_txn().unwrap(); - for TestPair { key, value } in &(pairs_creator)() { + for TestPair { key, value } in pairs_creator().as_ref() { match write::<_, _, _, LmdbTrieStore, error::Error>( correlation_id, &mut txn, @@ -466,6 +476,67 @@ mod tests { } } + #[test] + fn commit_updates_state_with_delete() { + let correlation_id = CorrelationId::new(); + let test_pairs_updated = create_test_pairs_updated(); + + let (state, root_hash) = create_test_state(create_test_pairs_updated); + + let effects: AdditiveMap = { + let mut tmp = AdditiveMap::new(); + + let head = test_pairs_updated[..test_pairs_updated.len() - 1].to_vec(); + let tail = test_pairs_updated[test_pairs_updated.len() - 1..].to_vec(); + assert_eq!(head.len() + tail.len(), test_pairs_updated.len()); + + for TestPair { key, value } in &head { + tmp.insert(*key, Transform::Write(value.to_owned())); + } + for TestPair { key, .. } in &tail { + tmp.insert(*key, Transform::Delete); + } + + tmp + }; + + let updated_hash = state.commit(correlation_id, root_hash, effects).unwrap(); + + assert_ne!( + root_hash, updated_hash, + "Post state root hash is expected to be different than pre state root hash" + ); + + let updated_checkout = state.checkout(updated_hash).unwrap().unwrap(); + + let all_keys = updated_checkout + .keys_with_prefix(correlation_id, &[]) + .unwrap(); + assert_eq!( + BTreeSet::from_iter(all_keys), + BTreeSet::from_iter(vec![KEY_ACCOUNT_1, KEY_ACCOUNT_2,]) + ); + + let account_1 = updated_checkout + .read(correlation_id, &KEY_ACCOUNT_1) + .unwrap(); + assert_eq!(account_1, Some(test_pairs_updated[0].clone().value)); + + let account_2 = updated_checkout + .read(correlation_id, &KEY_ACCOUNT_2) + .unwrap(); + assert_eq!(account_2, Some(test_pairs_updated[1].clone().value)); + + let account_3 = updated_checkout + .read(correlation_id, &KEY_ACCOUNT_3) + .unwrap(); + assert_eq!( + account_3, None, + "Account {:?} should be deleted", + KEY_ACCOUNT_3 + ); + } + #[test] fn commit_updates_state_and_original_state_stays_intact() { let correlation_id = CorrelationId::new(); diff --git a/execution_engine/src/storage/global_state/mod.rs b/execution_engine/src/storage/global_state/mod.rs index b4a1ee0ecc..dfff79ef62 100644 --- a/execution_engine/src/storage/global_state/mod.rs +++ b/execution_engine/src/storage/global_state/mod.rs @@ -138,7 +138,7 @@ pub fn put_stored_values<'a, R, S, E>( store: &S, correlation_id: CorrelationId, prestate_hash: Digest, - stored_values: HashMap, + stored_values: HashMap>, ) -> Result where R: TransactionSource<'a, Handle = S::Handle>, @@ -152,17 +152,43 @@ where if maybe_root.is_none() { return Err(CommitError::RootNotFound(prestate_hash).into()); }; - for (key, value) in stored_values.iter() { - let write_result = - write::<_, _, _, _, E>(correlation_id, &mut txn, store, &state_root, key, value)?; - match write_result { - WriteResult::Written(root_hash) => { - state_root = root_hash; + for (key, maybe_value) in stored_values.iter() { + match maybe_value { + Some(value) => { + let write_result = write::<_, _, _, _, E>( + correlation_id, + &mut txn, + store, + &state_root, + key, + value, + )?; + match write_result { + WriteResult::Written(root_hash) => { + state_root = root_hash; + } + WriteResult::AlreadyExists => (), + WriteResult::RootNotFound => { + error!(?state_root, ?key, ?value, "Error writing new value"); + return Err(CommitError::WriteRootNotFound(state_root).into()); + } + } } - WriteResult::AlreadyExists => (), - WriteResult::RootNotFound => { - error!(?state_root, ?key, ?value, "Error writing new value"); - return Err(CommitError::WriteRootNotFound(state_root).into()); + None => { + let delete_result = + delete::<_, _, _, _, E>(correlation_id, &mut txn, store, &state_root, key)?; + match delete_result { + DeleteResult::Deleted(root_hash) => { + state_root = root_hash; + } + DeleteResult::DoesNotExist => { + return Err(CommitError::KeyNotFound(*key).into()); + } + DeleteResult::RootNotFound => { + error!(?state_root, ?key, "Error deleting value"); + return Err(CommitError::WriteRootNotFound(state_root).into()); + } + } } } } @@ -195,26 +221,10 @@ where }; for (key, transform) in effects.into_iter() { - if transform == Transform::Delete { - match delete::<_, _, _, _, E>(correlation_id, &mut txn, store, &state_root, &key)? { - DeleteResult::Deleted(new_state_root) => { - state_root = new_state_root; - } - DeleteResult::DoesNotExist => { - return Err(CommitError::KeyNotFound(key).into()); - } - DeleteResult::RootNotFound => { - return Err(CommitError::RootNotFound(state_root).into()); - } - } - // Exit early and avoid reading the value under a key if we know we're going to delete - // it. - continue; - } let read_result = read::<_, _, _, _, E>(correlation_id, &txn, store, &state_root, &key)?; let value = match (read_result, transform) { - (ReadResult::NotFound, Transform::Write(new_value)) => new_value, + (ReadResult::NotFound, Transform::Write(new_value)) => Some(new_value), (ReadResult::NotFound, transform) => { error!( ?state_root, @@ -247,17 +257,40 @@ where } }; - let write_result = - write::<_, _, _, _, E>(correlation_id, &mut txn, store, &state_root, &key, &value)?; - - match write_result { - WriteResult::Written(root_hash) => { - state_root = root_hash; + match value { + Some(value) => { + let write_result = write::<_, _, _, _, E>( + correlation_id, + &mut txn, + store, + &state_root, + &key, + &value, + )?; + + match write_result { + WriteResult::Written(root_hash) => { + state_root = root_hash; + } + WriteResult::AlreadyExists => (), + WriteResult::RootNotFound => { + error!(?state_root, ?key, ?value, "Error writing new value"); + return Err(CommitError::WriteRootNotFound(state_root).into()); + } + } } - WriteResult::AlreadyExists => (), - WriteResult::RootNotFound => { - error!(?state_root, ?key, ?value, "Error writing new value"); - return Err(CommitError::WriteRootNotFound(state_root).into()); + None => { + match delete::<_, _, _, _, E>(correlation_id, &mut txn, store, &state_root, &key)? { + DeleteResult::Deleted(root_hash) => { + state_root = root_hash; + } + DeleteResult::DoesNotExist => { + return Err(CommitError::KeyNotFound(key).into()); + } + DeleteResult::RootNotFound => { + return Err(CommitError::RootNotFound(state_root).into()); + } + } } } } diff --git a/execution_engine/src/storage/global_state/scratch.rs b/execution_engine/src/storage/global_state/scratch.rs index 8b1a1442ad..6b6b3c42b9 100644 --- a/execution_engine/src/storage/global_state/scratch.rs +++ b/execution_engine/src/storage/global_state/scratch.rs @@ -31,7 +31,7 @@ use crate::{ type SharedCache = Arc>; struct Cache { - cached_values: HashMap, + cached_values: HashMap)>, } impl Cache { @@ -41,21 +41,24 @@ impl Cache { } } - fn insert_write(&mut self, key: Key, value: StoredValue) { + fn insert_write(&mut self, key: Key, value: Option) { self.cached_values.insert(key, (true, value)); } fn insert_read(&mut self, key: Key, value: StoredValue) { - self.cached_values.entry(key).or_insert((false, value)); + self.cached_values + .entry(key) + .or_insert((false, Some(value))); } fn get(&self, key: &Key) -> Option<&StoredValue> { - self.cached_values.get(key).map(|(_dirty, value)| value) + let maybe_value = self.cached_values.get(key).map(|(_dirty, value)| value)?; + maybe_value.as_ref() } /// Consumes self and returns only written values as values that were only read must be filtered /// out to prevent unnecessary writes. - fn into_dirty_writes(self) -> HashMap { + fn into_dirty_writes(self) -> HashMap> { self.cached_values .into_iter() .filter_map(|(key, (dirty, value))| if dirty { Some((key, value)) } else { None }) @@ -104,7 +107,7 @@ impl ScratchGlobalState { } /// Consume self and return inner cache. - pub fn into_inner(self) -> HashMap { + pub fn into_inner(self) -> HashMap> { let cache = mem::replace(&mut *self.cache.write().unwrap(), Cache::new()); cache.into_dirty_writes() } @@ -204,7 +207,7 @@ impl CommitProvider for ScratchGlobalState { for (key, transform) in effects.into_iter() { let cached_value = self.cache.read().unwrap().get(&key).cloned(); let value = match (cached_value, transform) { - (None, Transform::Write(new_value)) => new_value, + (None, Transform::Write(new_value)) => Some(new_value), (None, transform) => { // It might be the case that for `Add*` operations we don't have the previous // value in cache yet. @@ -376,14 +379,18 @@ mod tests { value: StoredValue, } + const KEY_ACCOUNT_1: Key = Key::Account(AccountHash::new([1u8; 32])); + const KEY_ACCOUNT_2: Key = Key::Account(AccountHash::new([2u8; 32])); + const KEY_ACCOUNT_3: Key = Key::Account(AccountHash::new([3u8; 32])); + fn create_test_pairs() -> [TestPair; 2] { [ TestPair { - key: Key::Account(AccountHash::new([1_u8; 32])), + key: KEY_ACCOUNT_1, value: StoredValue::CLValue(CLValue::from_t(1_i32).unwrap()), }, TestPair { - key: Key::Account(AccountHash::new([2_u8; 32])), + key: KEY_ACCOUNT_2, value: StoredValue::CLValue(CLValue::from_t(2_i32).unwrap()), }, ] @@ -392,15 +399,15 @@ mod tests { fn create_test_pairs_updated() -> [TestPair; 3] { [ TestPair { - key: Key::Account(AccountHash::new([1u8; 32])), + key: KEY_ACCOUNT_1, value: StoredValue::CLValue(CLValue::from_t("one".to_string()).unwrap()), }, TestPair { - key: Key::Account(AccountHash::new([2u8; 32])), + key: KEY_ACCOUNT_2, value: StoredValue::CLValue(CLValue::from_t("two".to_string()).unwrap()), }, TestPair { - key: Key::Account(AccountHash::new([3u8; 32])), + key: KEY_ACCOUNT_3, value: StoredValue::CLValue(CLValue::from_t(3_i32).unwrap()), }, ] @@ -428,7 +435,11 @@ mod tests { root_hash: Digest, } - fn create_test_state() -> TestState { + fn create_test_state(pairs_creator: F) -> TestState + where + T: AsRef<[TestPair]>, + F: FnOnce() -> T, + { let correlation_id = CorrelationId::new(); let temp_dir = tempdir().unwrap(); let environment = Arc::new( @@ -448,7 +459,7 @@ mod tests { { let mut txn = state.environment.create_read_write_txn().unwrap(); - for TestPair { key, value } in &create_test_pairs() { + for TestPair { key, value } in pairs_creator().as_ref() { match write::<_, _, _, LmdbTrieStore, error::Error>( correlation_id, &mut txn, @@ -482,7 +493,7 @@ mod tests { let correlation_id = CorrelationId::new(); let test_pairs_updated = create_test_pairs_updated(); - let TestState { state, root_hash } = create_test_state(); + let TestState { state, root_hash } = create_test_state(create_test_pairs); let scratch = state.create_scratch(); @@ -515,13 +526,10 @@ mod tests { for key in all_keys { assert!(stored_values.get(&key).is_some()); - assert_eq!( - stored_values.get(&key), - updated_checkout - .read(correlation_id, &key) - .unwrap() - .as_ref() - ); + let lhs = stored_values.get(&key); + let stored_value = updated_checkout.read(correlation_id, &key).unwrap(); + let rhs = Some(&stored_value); + assert_eq!(lhs, rhs,); } for TestPair { key, value } in test_pairs_updated.iter().cloned() { @@ -532,17 +540,94 @@ mod tests { } } + #[test] + fn commit_updates_state_with_delete() { + let correlation_id = CorrelationId::new(); + let test_pairs_updated = create_test_pairs_updated(); + + let TestState { state, root_hash } = create_test_state(create_test_pairs_updated); + + let scratch = state.create_scratch(); + + let effects: AdditiveMap = { + let mut tmp = AdditiveMap::new(); + + let head = test_pairs_updated[..test_pairs_updated.len() - 1].to_vec(); + let tail = test_pairs_updated[test_pairs_updated.len() - 1..].to_vec(); + assert_eq!(head.len() + tail.len(), test_pairs_updated.len()); + + for TestPair { key, value } in &head { + tmp.insert(*key, Transform::Write(value.to_owned())); + } + for TestPair { key, .. } in &tail { + tmp.insert(*key, Transform::Delete); + } + + tmp + }; + + let scratch_root_hash = scratch + .commit(correlation_id, root_hash, effects.clone()) + .unwrap(); + + assert_eq!( + scratch_root_hash, root_hash, + "ScratchGlobalState should not modify the state root, as it does no hashing" + ); + + let lmdb_hash = state.commit(correlation_id, root_hash, effects).unwrap(); + let updated_checkout = state.checkout(lmdb_hash).unwrap().unwrap(); + + let all_keys = updated_checkout + .keys_with_prefix(correlation_id, &[]) + .unwrap(); + + let stored_values = scratch.into_inner(); + assert_eq!( + all_keys.len(), + stored_values.len() - 1, + "Should delete one key from the global state" + ); + + for key in all_keys { + assert!(stored_values.get(&key).is_some()); + let lhs = stored_values.get(&key).cloned(); + let rhs = updated_checkout.read(correlation_id, &key).unwrap(); + + assert_eq!(lhs, Some(rhs)); + } + + let account_1 = updated_checkout + .read(correlation_id, &KEY_ACCOUNT_1) + .unwrap(); + assert_eq!(account_1, Some(test_pairs_updated[0].clone().value)); + + let account_2 = updated_checkout + .read(correlation_id, &KEY_ACCOUNT_2) + .unwrap(); + assert_eq!(account_2, Some(test_pairs_updated[1].clone().value)); + + let account_3 = updated_checkout + .read(correlation_id, &KEY_ACCOUNT_3) + .unwrap(); + assert_eq!( + account_3, None, + "Account {:?} should be deleted", + KEY_ACCOUNT_3 + ); + } + #[test] fn commit_updates_state_with_add() { let correlation_id = CorrelationId::new(); let test_pairs_updated = create_test_pairs_updated(); // create two lmdb instances, with a scratch instance on the first - let TestState { state, root_hash } = create_test_state(); + let TestState { state, root_hash } = create_test_state(create_test_pairs); let TestState { state: state2, root_hash: state_2_root_hash, - } = create_test_state(); + } = create_test_state(create_test_pairs); let scratch = state.create_scratch(); @@ -599,7 +684,7 @@ mod tests { let TestState { state, root_hash, .. - } = create_test_state(); + } = create_test_state(create_test_pairs); let scratch = state.create_scratch(); diff --git a/execution_engine_testing/test_support/src/wasm_test_builder.rs b/execution_engine_testing/test_support/src/wasm_test_builder.rs index f817389a9d..3fbd737750 100644 --- a/execution_engine_testing/test_support/src/wasm_test_builder.rs +++ b/execution_engine_testing/test_support/src/wasm_test_builder.rs @@ -512,6 +512,26 @@ impl LmdbWasmTestBuilder { .expect("unable to run step request against scratch global state"); self } + /// Executes a request to call the system auction contract. + pub fn run_auction_with_scratch( + &mut self, + era_end_timestamp_millis: u64, + evicted_validators: Vec, + ) -> &mut Self { + let auction = self.get_auction_contract_hash(); + let run_request = ExecuteRequestBuilder::contract_call_by_hash( + *SYSTEM_ADDR, + auction, + METHOD_RUN_AUCTION, + runtime_args! { + ARG_ERA_END_TIMESTAMP_MILLIS => era_end_timestamp_millis, + ARG_EVICTED_VALIDATORS => evicted_validators, + }, + ) + .build(); + self.scratch_exec_and_commit(run_request).expect_success(); + self + } } impl WasmTestBuilder diff --git a/execution_engine_testing/tests/src/test/regression/ee_1120.rs b/execution_engine_testing/tests/src/test/regression/ee_1120.rs index a7d399fb42..3343e289ad 100644 --- a/execution_engine_testing/tests/src/test/regression/ee_1120.rs +++ b/execution_engine_testing/tests/src/test/regression/ee_1120.rs @@ -4,7 +4,7 @@ use num_traits::Zero; use once_cell::sync::Lazy; use casper_engine_test_support::{ - utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, + utils, ExecuteRequestBuilder, LmdbWasmTestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, MINIMUM_ACCOUNT_CREATION_BALANCE, SYSTEM_ADDR, }; use casper_execution_engine::core::engine_state::{ @@ -84,7 +84,8 @@ fn should_run_ee_1120_slash_delegators() { }; let run_genesis_request = utils::create_run_genesis_request(accounts); - let mut builder = InMemoryWasmTestBuilder::default(); + let tempdir = tempfile::tempdir().unwrap(); + let mut builder = LmdbWasmTestBuilder::new_with_production_chainspec(tempdir.path()); builder.run_genesis(&run_genesis_request); let transfer_request_1 = ExecuteRequestBuilder::standard( @@ -97,7 +98,10 @@ fn should_run_ee_1120_slash_delegators() { ) .build(); - builder.exec(transfer_request_1).expect_success().commit(); + builder + .scratch_exec_and_commit(transfer_request_1) + .expect_success(); + builder.write_scratch_to_db(); let transfer_request_2 = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -109,7 +113,11 @@ fn should_run_ee_1120_slash_delegators() { ) .build(); - builder.exec(transfer_request_2).expect_success().commit(); + builder + .scratch_exec_and_commit(transfer_request_2) + .expect_success() + .commit(); + builder.write_scratch_to_db(); let auction = builder.get_auction_contract_hash(); @@ -149,19 +157,16 @@ fn should_run_ee_1120_slash_delegators() { .build(); builder - .exec(delegate_exec_request_1) - .expect_success() - .commit(); + .scratch_exec_and_commit(delegate_exec_request_1) + .expect_success(); builder - .exec(delegate_exec_request_2) - .expect_success() - .commit(); + .scratch_exec_and_commit(delegate_exec_request_2) + .expect_success(); builder - .exec(delegate_exec_request_3) - .expect_success() - .commit(); + .scratch_exec_and_commit(delegate_exec_request_3) + .expect_success(); // Ensure that initial bid entries exist for validator 1 and validator 2 let initial_bids: Bids = builder.get_bids(); @@ -209,10 +214,18 @@ fn should_run_ee_1120_slash_delegators() { ) .build(); - builder.exec(undelegate_request_1).commit().expect_success(); - builder.exec(undelegate_request_2).commit().expect_success(); - builder.exec(undelegate_request_3).commit().expect_success(); - + builder + .scratch_exec_and_commit(undelegate_request_1) + .expect_success(); + builder.write_scratch_to_db(); + builder + .scratch_exec_and_commit(undelegate_request_2) + .expect_success(); + builder.write_scratch_to_db(); + builder + .scratch_exec_and_commit(undelegate_request_3) + .expect_success(); + builder.write_scratch_to_db(); // Check unbonding purses before slashing let unbond_purses_before: UnbondingPurses = builder.get_unbonds(); @@ -289,7 +302,10 @@ fn should_run_ee_1120_slash_delegators() { ) .build(); - builder.exec(slash_request_1).expect_success().commit(); + builder + .scratch_exec_and_commit(slash_request_1) + .expect_success(); + builder.write_scratch_to_db(); // Compare bids after slashing validator 2 let bids_after: Bids = builder.get_bids(); @@ -346,7 +362,8 @@ fn should_run_ee_1120_slash_delegators() { ) .build(); - builder.exec(slash_request_2).expect_success().commit(); + builder.scratch_exec_and_commit(slash_request_2); + builder.write_scratch_to_db(); let bids_after: Bids = builder.get_bids(); assert_eq!(bids_after.len(), 2); diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index 839c165249..d0514922c3 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -3575,7 +3575,7 @@ fn should_continue_auction_state_from_release_1_4_x() { .iter() .all(|key| key.as_withdraw().is_some())); - // Ensure withdraw keys are purged + // Ensure withdraw keys are pruned let withdraw_keys_after = builder .get_keys(KeyTag::Withdraw) .expect("should query withdraw keys"); @@ -3764,7 +3764,7 @@ fn should_continue_auction_state_from_release_1_4_x() { assert_eq!( unbond_keys.len(), 0, - "auction state continued and empty unbond queue should be purged" + "auction state continued and empty unbond queue should be pruned" ); } diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs b/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs index 805d0e8ea1..f21561813c 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction_bidding.rs @@ -1,11 +1,12 @@ use num_traits::Zero; use casper_engine_test_support::{ - utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, UpgradeRequestBuilder, DEFAULT_ACCOUNTS, - DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_PUBLIC_KEY, DEFAULT_GENESIS_TIMESTAMP_MILLIS, - DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PAYMENT, DEFAULT_PROPOSER_PUBLIC_KEY, - DEFAULT_PROTOCOL_VERSION, DEFAULT_UNBONDING_DELAY, MINIMUM_ACCOUNT_CREATION_BALANCE, - PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, TIMESTAMP_MILLIS_INCREMENT, + utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, LmdbWasmTestBuilder, StepRequestBuilder, + UpgradeRequestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_PUBLIC_KEY, + DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PAYMENT, + DEFAULT_PROPOSER_PUBLIC_KEY, DEFAULT_PROTOCOL_VERSION, DEFAULT_UNBONDING_DELAY, + MINIMUM_ACCOUNT_CREATION_BALANCE, PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, + TIMESTAMP_MILLIS_INCREMENT, }; use casper_execution_engine::core::{ engine_state::{ @@ -550,6 +551,188 @@ fn should_run_successful_bond_and_unbond_with_release() { ); } +#[ignore] +#[test] +fn should_run_successful_bond_and_unbond_with_release_on_lmdb() { + let default_public_key_arg = DEFAULT_ACCOUNT_PUBLIC_KEY.clone(); + + let tempdir = tempfile::tempdir().expect("should create tempdir"); + + let mut builder = LmdbWasmTestBuilder::new_with_production_chainspec(tempdir.path()); + builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + + let default_account = builder + .get_account(*DEFAULT_ACCOUNT_ADDR) + .expect("should have default account"); + + let unbonding_purse = default_account.main_purse(); + + let exec_request = ExecuteRequestBuilder::standard( + *DEFAULT_ACCOUNT_ADDR, + CONTRACT_TRANSFER_TO_ACCOUNT, + runtime_args! { + "target" => *SYSTEM_ADDR, + "amount" => U512::from(TRANSFER_AMOUNT* 2) + }, + ) + .build(); + + builder + .scratch_exec_and_commit(exec_request) + .expect_success(); + builder.write_scratch_to_db(); + + let _system_account = builder + .get_account(*SYSTEM_ADDR) + .expect("should get account 1"); + + let _default_account = builder + .get_account(*DEFAULT_ACCOUNT_ADDR) + .expect("should get account 1"); + + let exec_request_1 = ExecuteRequestBuilder::standard( + *DEFAULT_ACCOUNT_ADDR, + CONTRACT_ADD_BID, + runtime_args! { + ARG_AMOUNT => U512::from(GENESIS_ACCOUNT_STAKE), + ARG_PUBLIC_KEY => default_public_key_arg.clone(), + ARG_DELEGATION_RATE => DELEGATION_RATE, + }, + ) + .build(); + + builder + .scratch_exec_and_commit(exec_request_1) + .expect_success(); + builder.write_scratch_to_db(); + + let bids: Bids = builder.get_bids(); + let bid = bids.get(&default_public_key_arg).expect("should have bid"); + let bid_purse = *bid.bonding_purse(); + assert_eq!( + builder.get_purse_balance(bid_purse), + GENESIS_ACCOUNT_STAKE.into() + ); + + let unbond_purses: UnbondingPurses = builder.get_unbonds(); + assert_eq!(unbond_purses.len(), 0); + + // + // Advance era by calling run_auction + // + let step_request = StepRequestBuilder::new() + .with_parent_state_hash(builder.get_post_state_hash()) + .with_protocol_version(ProtocolVersion::V1_0_0) + .with_next_era_id(builder.get_era().successor()) + .with_run_auction(true) + .build(); + + builder.step_with_scratch(step_request); + + builder.write_scratch_to_db(); + + // + // Partial unbond + // + + let unbond_amount = U512::from(GENESIS_ACCOUNT_STAKE) - 1; + + let exec_request_2 = ExecuteRequestBuilder::standard( + *DEFAULT_ACCOUNT_ADDR, + CONTRACT_WITHDRAW_BID, + runtime_args! { + ARG_AMOUNT => unbond_amount, + ARG_PUBLIC_KEY => default_public_key_arg.clone(), + }, + ) + .build(); + + builder + .scratch_exec_and_commit(exec_request_2) + .expect_success(); + + builder.write_scratch_to_db(); + + let unbond_purses: UnbondingPurses = builder.get_unbonds(); + assert_eq!(unbond_purses.len(), 1); + + let unbond_list = unbond_purses + .get(&*DEFAULT_ACCOUNT_ADDR) + .expect("should have unbond"); + assert_eq!(unbond_list.len(), 1); + assert_eq!( + unbond_list[0].validator_public_key(), + &default_public_key_arg, + ); + assert!(unbond_list[0].is_validator()); + + assert_eq!(unbond_list[0].era_of_creation(), INITIAL_ERA_ID + 1); + + let unbond_era_1 = unbond_list[0].era_of_creation(); + + let account_balance_before_auction = builder.get_purse_balance(unbonding_purse); + + let unbond_purses: UnbondingPurses = builder.get_unbonds(); + assert_eq!(unbond_purses.len(), 1); + + let unbond_list = unbond_purses + .get(&DEFAULT_ACCOUNT_ADDR) + .expect("should have unbond"); + assert_eq!(unbond_list.len(), 1); + assert_eq!( + unbond_list[0].validator_public_key(), + &default_public_key_arg, + ); + assert!(unbond_list[0].is_validator()); + + assert_eq!( + builder.get_purse_balance(unbonding_purse), + account_balance_before_auction, // Not paid yet + ); + + let unbond_era_2 = unbond_list[0].era_of_creation(); + + assert_eq!(unbond_era_2, unbond_era_1); // era of withdrawal didn't change since first run + + let era_id_before = builder.get_era(); + // + // Advance state to hit the unbonding period + // + for _ in 0..=builder.get_unbonding_delay() { + let step_request = StepRequestBuilder::new() + .with_parent_state_hash(builder.get_post_state_hash()) + .with_protocol_version(ProtocolVersion::V1_0_0) + .with_next_era_id(builder.get_era().successor()) + .with_run_auction(true) + .build(); + + builder.step_with_scratch(step_request); + + builder.write_scratch_to_db(); + } + + let era_id_after = builder.get_era(); + + assert_ne!(era_id_before, era_id_after); + + let unbond_purses: UnbondingPurses = builder.get_unbonds(); + assert!( + !unbond_purses.contains_key(&*DEFAULT_ACCOUNT_ADDR), + "{:?}", + unbond_purses + ); + + let bids: Bids = builder.get_bids(); + assert!(!bids.is_empty()); + + let bid = bids.get(&default_public_key_arg).expect("should have bid"); + let bid_purse = *bid.bonding_purse(); + assert_eq!( + builder.get_purse_balance(bid_purse), + U512::from(GENESIS_ACCOUNT_STAKE) - unbond_amount, // remaining funds + ); +} + #[ignore] #[test] fn should_run_successful_unbond_funds_after_changing_unbonding_delay() { diff --git a/types/src/execution_result.rs b/types/src/execution_result.rs index 5129806a45..54ae4bedcd 100644 --- a/types/src/execution_result.rs +++ b/types/src/execution_result.rs @@ -757,7 +757,7 @@ impl FromBytes for Transform { impl Distribution for Standard { fn sample(&self, rng: &mut R) -> Transform { // TODO - include WriteDeployInfo and WriteTransfer as options - match rng.gen_range(0..13) { + match rng.gen_range(0..14) { 0 => Transform::Identity, 1 => Transform::WriteCLValue(CLValue::from_t(true).unwrap()), 2 => Transform::WriteAccount(AccountHash::new(rng.gen())), @@ -780,6 +780,7 @@ impl Distribution for Standard { Transform::AddKeys(named_keys) } 12 => Transform::Failure(rng.gen::().to_string()), + 13 => Transform::Delete, _ => unreachable!(), } } From 6af61de22e0b31f0dd186215e2a07cf30aa55596 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 8 May 2023 15:39:43 +0200 Subject: [PATCH 394/735] Revert conditional compilation for rlimits. --- node/src/reactor.rs | 19 ++++++++++++++----- node/src/utils.rs | 1 + 2 files changed, 15 insertions(+), 5 deletions(-) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 1d43c18e68..9848eb1dee 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -55,10 +55,11 @@ use serde::Serialize; use signal_hook::consts::signal::{SIGINT, SIGQUIT, SIGTERM}; use stats_alloc::{Stats, INSTRUMENTED_SYSTEM}; use tokio::time::{Duration, Instant}; -use tracing::{debug, debug_span, error, info, instrument, trace, warn, Span}; +use tracing::{debug_span, error, info, instrument, trace, warn, Span}; use tracing_futures::Instrument; -use crate::utils::rlimit::{Limit, OpenFiles, ResourceLimit}; +#[cfg(target_os = "linux")] +use utils::rlimit::{Limit, OpenFiles, ResourceLimit}; use crate::{ components::{ @@ -101,9 +102,11 @@ static DISPATCH_EVENT_THRESHOLD: Lazy = Lazy::new(|| { .unwrap_or_else(|_| DEFAULT_DISPATCH_EVENT_THRESHOLD) }); +#[cfg(target_os = "linux")] /// The desired limit for open files. const TARGET_OPEN_FILES_LIMIT: Limit = 64_000; +#[cfg(target_os = "linux")] /// Adjusts the maximum number of open file handles upwards towards the hard limit. fn adjust_open_files_limit() { // Ensure we have reasonable ulimits. @@ -129,10 +132,10 @@ fn adjust_open_files_limit() { if let Err(err) = new_limit.set() { warn!(%err, current=current_limit.current(), target=best_possible, "did not succeed in raising open files limit") } else { - debug!(?new_limit, "successfully increased open files limit"); + tracing::debug!(?new_limit, "successfully increased open files limit"); } } else { - debug!( + tracing::debug!( ?current_limit, "not changing open files limit, already sufficient" ); @@ -141,6 +144,12 @@ fn adjust_open_files_limit() { } } +#[cfg(not(target_os = "linux"))] +/// File handle limit adjustment shim. +fn adjust_open_files_limit() { + info!("not on linux, not adjusting open files limit"); +} + /// Event scheduler /// /// The scheduler is a combination of multiple event queues that are polled in a specific order. It @@ -830,7 +839,7 @@ where self.is_shutting_down.set(); self.scheduler.seal(); for (ancestor, event) in self.scheduler.drain_queues().await { - debug!(?ancestor, %event, "drained event"); + tracing::debug!(?ancestor, %event, "drained event"); } self.reactor } diff --git a/node/src/utils.rs b/node/src/utils.rs index 8655e98f25..4f962e097b 100644 --- a/node/src/utils.rs +++ b/node/src/utils.rs @@ -7,6 +7,7 @@ pub(crate) mod ds; mod external; pub(crate) mod fmt_limit; pub(crate) mod opt_display; +#[cfg(target_os = "linux")] pub(crate) mod rlimit; pub(crate) mod round_robin; pub(crate) mod specimen; From 8978f143cf8a345117749916802b7f065dfff673 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 10 May 2023 13:59:12 +0200 Subject: [PATCH 395/735] juliet: Partial implementation of remaining missing header features --- juliet/src/error.rs | 11 +++++--- juliet/src/lib.rs | 63 ++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 64 insertions(+), 10 deletions(-) diff --git a/juliet/src/error.rs b/juliet/src/error.rs index 168511606f..82e84263fd 100644 --- a/juliet/src/error.rs +++ b/juliet/src/error.rs @@ -17,13 +17,16 @@ pub enum Error { #[error("request limit exceeded")] RequestLimitExceeded, /// Peer re-used an in-flight request ID. - #[error("duplicate request id")] + #[error("duplicate request id")] // TODO: Add ID DuplicateRequest, /// Peer sent a response for a request that does not exist. #[error("fictive request: {0}")] - FictiveRequest(RequestId), - /// Peer wants to send a segment that, along with its header, would violate the frame size. - #[error("segment of {0} would exceed frame size limit")] + FicticiousRequest(RequestId), + /// Peer attempted to cancel more requests than it made. + #[error("exceeded request cancellation allowance")] + ExceededRequestCancellationAllowance, + /// Peer wants to send a segment that, along with its header, would violate the payload size. + #[error("segment of {0} would exceed payload size limit")] SegmentSizedExceeded(usize), /// Variable size integer overflowed. #[error("varint overflow")] diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index ed68793671..eb9a0f40d2 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -33,18 +33,38 @@ pub enum Frame<'a> { unverified_channel: u8, payload: Option<&'a [u8]>, }, + RequestCancellation { + id: RequestId, + channel: ChannelId, + }, } #[derive(Debug)] pub struct Receiver { channels: [Channel; N], - request_limits: [usize; N], + request_limits: [u64; N], // TODO: Consider moving to `Channel`, see also: `increase_cancellation_allowance)`. frame_size_limit: u32, } #[derive(Debug)] struct Channel { pending: BTreeSet, + cancellation_allowance: u64, // TODO: Upper bound by max request in flight? +} + +impl Channel { + fn increase_cancellation_allowance(&mut self, request_limit: u64) { + self.cancellation_allowance = (self.cancellation_allowance + 1).min(request_limit); + } + + fn attempt_cancellation(&mut self) -> bool { + if self.cancellation_allowance > 0 { + self.cancellation_allowance -= 1; + true + } else { + false + } + } } impl Receiver { @@ -62,6 +82,10 @@ impl Receiver { match header.flags { HeaderFlags::ZeroSizedRequest => { let channel = self.validate_request(&header)?; + let request_limit = self.request_limit(channel); + self.channel_mut(channel) + .increase_cancellation_allowance(request_limit); + let frame = Frame::Request { id: header.id, channel, @@ -98,8 +122,22 @@ impl Receiver { bytes_consumed: HEADER_SIZE, }) } - HeaderFlags::RequestCancellation => todo!(), - HeaderFlags::ResponseCancellation => todo!(), + HeaderFlags::RequestCancellation => { + let channel = self.validate_request_cancellation(&header)?; + let frame = Frame::RequestCancellation { + id: header.id, + channel, + }; + + Ok(ReceiveOutcome::Consumed { + value: frame, + bytes_consumed: HEADER_SIZE, + }) + } + HeaderFlags::ResponseCancellation => { + // TODO: Find a solution, we need to track requests without race conditions here. + todo!() + } HeaderFlags::RequestWithPayload => { let channel = self.validate_request(&header)?; @@ -110,6 +148,9 @@ impl Receiver { } => { bytes_consumed += HEADER_SIZE; self.channel_mut(channel).pending.insert(header.id); + let request_limit = self.request_limit(channel); + self.channel_mut(channel) + .increase_cancellation_allowance(request_limit); let frame = Frame::Request { id: header.id, @@ -187,7 +228,7 @@ impl Receiver { let channel_id = Self::validate_channel(&header)?; let channel = self.channel(channel_id); - if channel.pending.len() >= self.request_limit(channel_id) { + if channel.pending.len() as u64 >= self.request_limit(channel_id) { return Err(Error::RequestLimitExceeded); } @@ -198,12 +239,22 @@ impl Receiver { Ok(channel_id) } + fn validate_request_cancellation(&mut self, header: &Header) -> Result { + let channel_id = Self::validate_channel(&header)?; + let channel = self.channel_mut(channel_id); + if !channel.attempt_cancellation() { + Err(Error::ExceededRequestCancellationAllowance) + } else { + Ok(channel_id) + } + } + fn validate_response(&self, header: &Header) -> Result { let channel_id = Self::validate_channel(&header)?; let channel = self.channel(channel_id); if !channel.pending.contains(&header.id) { - return Err(Error::FictiveRequest(header.id)); + return Err(Error::FicticiousRequest(header.id)); } Ok(channel_id) @@ -217,7 +268,7 @@ impl Receiver { &mut self.channels[channel_id as usize] } - fn request_limit(&self, channel_id: ChannelId) -> usize { + fn request_limit(&self, channel_id: ChannelId) -> u64 { self.request_limits[channel_id as usize] } From 15e836418f3982d27b189b6f249922be4e558350 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 10 May 2023 14:58:38 +0200 Subject: [PATCH 396/735] juliet: Reimplement header according to RFC --- juliet/src/header.rs | 229 +++++++++++++++++++++++++++---------------- 1 file changed, 143 insertions(+), 86 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 05719759c6..54aa78f305 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,113 +1,170 @@ -use crate::{ChannelId, RequestId}; - /// `juliet` header parsing and serialization. - -/// The size of a header in bytes. -pub(crate) const HEADER_SIZE: usize = 4; - +use crate::{ChannelId, Id}; /// Header structure. -/// -/// This struct guaranteed to be 1:1 bit compatible to actually serialized headers on little endian -/// machines, thus serialization/deserialization should be no-ops when compiled with optimizations. #[derive(Copy, Clone, Debug, Eq, PartialEq)] -#[repr(C)] -pub(crate) struct Header { - /// Request/response ID. - pub(crate) id: RequestId, - /// Channel for the frame this header belongs to. - pub(crate) channel: ChannelId, - /// Flags. - /// - /// See protocol documentation for details. - pub(crate) flags: HeaderFlags, +#[repr(transparent)] +pub(crate) struct Header([u8; Self::SIZE]); + +#[derive(Copy, Clone, Debug)] +#[repr(u8)] +enum ErrorKind { + Other = 0, + MaxFrameSizeExceeded = 1, + InvalidHeader = 2, + SegmentViolation = 3, + BadVarInt = 4, + InvalidChannel = 5, + InProgress = 6, + ResponseTooLarge = 7, + RequestTooLarge = 8, + DuplicateRequest = 9, + FictitiousRequest = 10, + RequestLimitExceeded = 11, + FictitiousCancel = 12, + CancellationLimitExceeded = 13, + // Note: When adding additional kinds, update the `HIGHEST` associated constant. } -/// Header flags. -/// -/// At the moment, all flag combinations available require separate code-paths for handling anyway, -/// thus there are no true "optional" flags. Thus for simplicity, an `enum` is used at the moment. -#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug)] #[repr(u8)] -pub(crate) enum HeaderFlags { - /// A request without a segment following it. - ZeroSizedRequest = 0b00000000, - /// A response without a segment following it. - ZeroSizedResponse = 0b00000001, - /// An error with no detail segment. - Error = 0b00000011, - /// Cancellation of a request. - RequestCancellation = 0b00000100, - /// Cancellation of a response. - ResponseCancellation = 0b00000101, - /// A request with a segment following it. - RequestWithPayload = 0b00001000, - /// A response with a segment following it. - ResponseWithPayload = 0b00001001, - /// An error with a detail segment. - ErrorWithMessage = 0b00001010, + +enum Kind { + Request = 0, + Response = 1, + RequestPl = 2, + ResponsePl = 3, + CancelReq = 4, + CancelResp = 5, +} + +impl ErrorKind { + const HIGHEST: Self = Self::CancellationLimitExceeded; +} + +impl Kind { + const HIGHEST: Self = Self::CancelResp; } -impl TryFrom for HeaderFlags { - type Error = u8; - - fn try_from(value: u8) -> Result { - match value { - 0b00000000 => Ok(HeaderFlags::ZeroSizedRequest), - 0b00000001 => Ok(HeaderFlags::ZeroSizedResponse), - 0b00000011 => Ok(HeaderFlags::Error), - 0b00000100 => Ok(HeaderFlags::RequestCancellation), - 0b00000101 => Ok(HeaderFlags::ResponseCancellation), - 0b00001000 => Ok(HeaderFlags::RequestWithPayload), - 0b00001001 => Ok(HeaderFlags::ResponseWithPayload), - 0b00001010 => Ok(HeaderFlags::ErrorWithMessage), - _ => Err(value), +impl Header { + const SIZE: usize = 4; + const KIND_ERR_BIT: u8 = 0b1000_0000; + const KIND_ERR_MASK: u8 = 0b0000_1111; + const KIND_MASK: u8 = 0b0000_0111; +} + +impl Header { + #[inline(always)] + fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { + let id = id.to_le_bytes(); + Header([kind as u8, channel as u8, id[0], id[1]]) + } + + #[inline(always)] + fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { + let id = id.to_le_bytes(); + Header([ + kind as u8 | Header::KIND_ERR_BIT, + channel as u8, + id[0], + id[1], + ]) + } + + #[inline(always)] + fn parse(raw: [u8; Header::SIZE]) -> Option { + let header = Header(raw); + + // Check that the kind byte is within valid range. + if header.is_error() { + if (header.kind_byte() & Self::KIND_ERR_MASK) > ErrorKind::HIGHEST as u8 { + return None; + } + } else { + if (header.kind_byte() & Self::KIND_MASK) > Kind::HIGHEST as u8 { + return None; + } } + + Some(header) } -} -impl TryFrom<[u8; 4]> for Header { - type Error = u8; // Invalid flags are returned as the error. - - fn try_from(value: [u8; 4]) -> Result { - let flags = HeaderFlags::try_from(value[0])?; - // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. - Ok(Header { - // Safe unwrap here, as the size of `value[2..4]` is exactly the necessary 2 bytes. - id: u16::from_le_bytes(value[2..4].try_into().unwrap()), - channel: value[1], - flags, - }) + #[inline(always)] + fn kind_byte(self) -> u8 { + self.0[0] } -} -impl From
for [u8; 4] { #[inline(always)] - fn from(header: Header) -> Self { - // TODO: Check if this code is equal to `mem::transmute` usage on LE platforms. - [ - header.flags as u8, - header.channel, - header.id.to_le_bytes()[0], - header.id.to_le_bytes()[1], - ] + fn channel(self) -> ChannelId { + self.0[1] + } + + #[inline(always)] + fn id(self) -> Id { + let [_, _, id @ ..] = self.0; + Id::from_le_bytes(id) + } + + #[inline(always)] + fn is_error(self) -> bool { + self.kind_byte() & Self::KIND_ERR_BIT == Self::KIND_ERR_BIT + } + + #[inline(always)] + fn error_kind(self) -> ErrorKind { + debug_assert!(self.is_error()); + match self.kind_byte() { + 0 => ErrorKind::Other, + 1 => ErrorKind::MaxFrameSizeExceeded, + 2 => ErrorKind::InvalidHeader, + 3 => ErrorKind::SegmentViolation, + 4 => ErrorKind::BadVarInt, + 5 => ErrorKind::InvalidChannel, + 6 => ErrorKind::InProgress, + 7 => ErrorKind::ResponseTooLarge, + 8 => ErrorKind::RequestTooLarge, + 9 => ErrorKind::DuplicateRequest, + 10 => ErrorKind::FictitiousRequest, + 11 => ErrorKind::RequestLimitExceeded, + 12 => ErrorKind::FictitiousCancel, + 13 => ErrorKind::CancellationLimitExceeded, + // Would violate validity invariant. + _ => unreachable!(), + } + } + + #[inline(always)] + fn kind(self) -> Kind { + debug_assert!(!self.is_error()); + match self.kind_byte() { + 0 => Kind::Request, + 1 => Kind::Response, + 2 => Kind::RequestPl, + 3 => Kind::ResponsePl, + 4 => Kind::CancelReq, + 5 => Kind::CancelResp, + // Would violate validity invariant. + _ => unreachable!(), + } + } +} + +impl From
for [u8; Header::SIZE] { + fn from(value: Header) -> Self { + value.0 } } #[cfg(test)] mod tests { - use crate::{Header, HeaderFlags}; + use super::{ErrorKind, Header}; #[test] fn known_headers() { - let input = [0x09, 0x34, 0x56, 0x78]; - let expected = Header { - flags: HeaderFlags::ResponseWithPayload, - channel: 0x34, // 52 - id: 0x7856, // 30806 - }; + let input = [0x86, 0x48, 0xAA, 0xBB]; + let expected = Header::new_error(ErrorKind::InProgress, 0x48, 0xBBAA); assert_eq!( - Header::try_from(input).expect("could not parse header"), + Header::parse(input).expect("could not parse header"), expected ); assert_eq!(<[u8; 4]>::from(expected), input); From b93888a4654cd02e3d2de16882abb27984c3a42d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 11 May 2023 13:03:23 +0200 Subject: [PATCH 397/735] juliet: Add roundtrip proptests for `Header` --- Cargo.lock | 3 +++ juliet/Cargo.toml | 5 +++++ juliet/src/error.rs | 4 ++-- juliet/src/header.rs | 43 ++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 52 insertions(+), 3 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 25fb0e9a3b..e19b58f6aa 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2462,6 +2462,9 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ + "proptest", + "proptest-attr-macro", + "proptest-derive", "thiserror", ] diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index fbc18a7c54..8d5fbd1b41 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -6,3 +6,8 @@ authors = [ "Marc Brinkmann " ] [dependencies] thiserror = "1.0.40" + +[dev-dependencies] +proptest = "1.1.0" +proptest-attr-macro = "1.0.0" +proptest-derive = "0.3.0" diff --git a/juliet/src/error.rs b/juliet/src/error.rs index 82e84263fd..3affd36885 100644 --- a/juliet/src/error.rs +++ b/juliet/src/error.rs @@ -2,7 +2,7 @@ use thiserror::Error; -use crate::{ChannelId, RequestId}; +use crate::{ChannelId, Id}; /// Protocol violation. #[derive(Debug, Error)] @@ -21,7 +21,7 @@ pub enum Error { DuplicateRequest, /// Peer sent a response for a request that does not exist. #[error("fictive request: {0}")] - FicticiousRequest(RequestId), + FicticiousRequest(Id), /// Peer attempted to cancel more requests than it made. #[error("exceeded request cancellation allowance")] ExceededRequestCancellationAllowance, diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 54aa78f305..6fa73fef7b 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -6,6 +6,7 @@ use crate::{ChannelId, Id}; pub(crate) struct Header([u8; Self::SIZE]); #[derive(Copy, Clone, Debug)] +#[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] enum ErrorKind { Other = 0, @@ -26,6 +27,7 @@ enum ErrorKind { } #[derive(Copy, Clone, Debug)] +#[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] enum Kind { @@ -156,7 +158,36 @@ impl From
for [u8; Header::SIZE] { #[cfg(test)] mod tests { - use super::{ErrorKind, Header}; + use proptest::{ + arbitrary::any, + prelude::Arbitrary, + prop_oneof, + strategy::{BoxedStrategy, Strategy}, + }; + use proptest_attr_macro::proptest; + + use crate::{ChannelId, Id}; + + use super::{ErrorKind, Header, Kind}; + + /// Proptest strategy for `Header`s. + fn arb_header() -> impl Strategy { + prop_oneof![ + any::<(Kind, ChannelId, Id)>().prop_map(|(kind, chan, id)| Header::new(kind, chan, id)), + any::<(ErrorKind, ChannelId, Id)>() + .prop_map(|(err_kind, chan, id)| Header::new_error(err_kind, chan, id)), + ] + } + + impl Arbitrary for Header { + type Parameters = (); + + fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy { + arb_header().boxed() + } + + type Strategy = BoxedStrategy
; + } #[test] fn known_headers() { @@ -169,4 +200,14 @@ mod tests { ); assert_eq!(<[u8; 4]>::from(expected), input); } + + #[proptest] + fn roundtrip_header(header: Header) { + let raw: [u8; 4] = header.into(); + + assert_eq!( + Header::parse(raw).expect("failed to roundtrip header"), + header + ); + } } From 087d569ce814583e5984b86419e173f8448f5eb3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 11 May 2023 13:09:48 +0200 Subject: [PATCH 398/735] juliet: Add manual `Debug` implementation for `Header` and fix bugs found resulting from that --- juliet/src/header.rs | 37 ++++++++++++++++++++++++++++++++++--- 1 file changed, 34 insertions(+), 3 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 6fa73fef7b..f6e300cb08 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,10 +1,34 @@ +use std::fmt::Debug; + /// `juliet` header parsing and serialization. use crate::{ChannelId, Id}; /// Header structure. -#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Eq, PartialEq)] #[repr(transparent)] pub(crate) struct Header([u8; Self::SIZE]); +impl Debug for Header { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + if self.is_error() { + write!( + f, + "[err:{:?} chan: {} id: {}]", + self.error_kind(), + self.channel(), + self.id() + ) + } else { + write!( + f, + "[{:?} chan: {} id: {}]", + self.kind(), + self.channel(), + self.id() + ) + } + } +} + #[derive(Copy, Clone, Debug)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] @@ -114,7 +138,7 @@ impl Header { #[inline(always)] fn error_kind(self) -> ErrorKind { debug_assert!(self.is_error()); - match self.kind_byte() { + match self.kind_byte() & Self::KIND_ERR_MASK { 0 => ErrorKind::Other, 1 => ErrorKind::MaxFrameSizeExceeded, 2 => ErrorKind::InvalidHeader, @@ -137,7 +161,7 @@ impl Header { #[inline(always)] fn kind(self) -> Kind { debug_assert!(!self.is_error()); - match self.kind_byte() { + match self.kind_byte() & Self::KIND_MASK { 0 => Kind::Request, 1 => Kind::Response, 2 => Kind::RequestPl, @@ -209,5 +233,12 @@ mod tests { Header::parse(raw).expect("failed to roundtrip header"), header ); + + // Verify the `kind` and `err_kind` methods don't panic. + if header.is_error() { + drop(header.error_kind()); + } else { + drop(header.kind()); + } } } From 139dc5c928a584f0d959600e53cddec14d611498 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 11 May 2023 13:36:19 +0200 Subject: [PATCH 399/735] juliet: Improve documentation for `header` module --- juliet/src/header.rs | 78 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 64 insertions(+), 14 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index f6e300cb08..329c12d54e 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,6 +1,6 @@ +//! `juliet` header parsing and serialization. use std::fmt::Debug; -/// `juliet` header parsing and serialization. use crate::{ChannelId, Id}; /// Header structure. #[derive(Copy, Clone, Eq, PartialEq)] @@ -29,64 +29,97 @@ impl Debug for Header { } } +/// Error kind, from the kind byte. #[derive(Copy, Clone, Debug)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] -enum ErrorKind { +pub(crate) enum ErrorKind { + /// Application defined error. Other = 0, + /// The maximum frame size has been exceeded. This error cannot occur in this implementation, + /// which operates solely on streams. MaxFrameSizeExceeded = 1, + /// An invalid header was received. InvalidHeader = 2, + /// A segment was sent with a frame where none was allowed, or a segment was too small or missing. SegmentViolation = 3, + /// A `varint32` could not be decoded. BadVarInt = 4, + /// Invalid channel: A channel number greater or equal the highest channel number was received. InvalidChannel = 5, + /// A new request or response was sent without completing the previous one. InProgress = 6, + /// The indicated size of the response would be exceeded the configured limit. ResponseTooLarge = 7, + /// The indicated size of the request would be exceeded the configured limit. RequestTooLarge = 8, + /// Peer attempted to create two in-flight requests with the same ID on the same channel. DuplicateRequest = 9, + /// Sent a response for request not in-flight. FictitiousRequest = 10, + /// The dynamic request limit has been exceeded. RequestLimitExceeded = 11, + /// Response cancellation for a request not in-flight. FictitiousCancel = 12, + /// Peer sent a request cancellation exceeding the cancellation allowance. CancellationLimitExceeded = 13, // Note: When adding additional kinds, update the `HIGHEST` associated constant. } +/// Frame kind, from the kind byte. #[derive(Copy, Clone, Debug)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] -enum Kind { +pub(crate) enum Kind { + /// A request with no payload. Request = 0, + /// A response with no payload. Response = 1, + /// A request that includes a payload. RequestPl = 2, + /// A response that includes a payload. ResponsePl = 3, + /// Cancellation of a request. CancelReq = 4, + /// Cancellation of a response. CancelResp = 5, } impl ErrorKind { + /// The highest error kind number. + /// + /// Only error kinds <= `HIGHEST` are valid. const HIGHEST: Self = Self::CancellationLimitExceeded; } impl Kind { + /// The highest frame kind number. + /// + /// Only error kinds <= `HIGHEST` are valid. const HIGHEST: Self = Self::CancelResp; } impl Header { + /// The size (in bytes) of a header. const SIZE: usize = 4; + /// Bitmask returning the error bit of the kind byte. const KIND_ERR_BIT: u8 = 0b1000_0000; + /// Bitmask returning the error kind inside the kind byte. const KIND_ERR_MASK: u8 = 0b0000_1111; + /// Bitmask returning the frame kind inside the kind byte. const KIND_MASK: u8 = 0b0000_0111; -} -impl Header { + /// Creates a new non-error header. #[inline(always)] - fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { + pub(crate) fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { let id = id.to_le_bytes(); Header([kind as u8, channel as u8, id[0], id[1]]) } + /// Creates a new error header. #[inline(always)] - fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { + pub(crate) fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { let id = id.to_le_bytes(); Header([ kind as u8 | Header::KIND_ERR_BIT, @@ -96,8 +129,11 @@ impl Header { ]) } + /// Parse a header from raw bytes. + /// + /// Returns `None` if the given `raw` bytes are not a valid header. #[inline(always)] - fn parse(raw: [u8; Header::SIZE]) -> Option { + pub(crate) fn parse(raw: [u8; Header::SIZE]) -> Option { let header = Header(raw); // Check that the kind byte is within valid range. @@ -114,29 +150,38 @@ impl Header { Some(header) } + /// Returns the raw kind byte. #[inline(always)] fn kind_byte(self) -> u8 { self.0[0] } + /// Returns the channel. #[inline(always)] - fn channel(self) -> ChannelId { + pub(crate) fn channel(self) -> ChannelId { self.0[1] } + /// Returns the id. #[inline(always)] - fn id(self) -> Id { + pub(crate) fn id(self) -> Id { let [_, _, id @ ..] = self.0; Id::from_le_bytes(id) } + /// Returns whether the error bit is set. #[inline(always)] fn is_error(self) -> bool { self.kind_byte() & Self::KIND_ERR_BIT == Self::KIND_ERR_BIT } + /// Returns the error kind. + /// + /// # Panics + /// + /// Will panic if `Self::is_error()` is not `true`. #[inline(always)] - fn error_kind(self) -> ErrorKind { + pub(crate) fn error_kind(self) -> ErrorKind { debug_assert!(self.is_error()); match self.kind_byte() & Self::KIND_ERR_MASK { 0 => ErrorKind::Other, @@ -158,8 +203,13 @@ impl Header { } } + /// Returns the frame kind. + /// + /// # Panics + /// + /// Will panic if `Self::is_error()` is not `false`. #[inline(always)] - fn kind(self) -> Kind { + pub(crate) fn kind(self) -> Kind { debug_assert!(!self.is_error()); match self.kind_byte() & Self::KIND_MASK { 0 => Kind::Request, @@ -222,12 +272,12 @@ mod tests { Header::parse(input).expect("could not parse header"), expected ); - assert_eq!(<[u8; 4]>::from(expected), input); + assert_eq!(<[u8; Header::SIZE]>::from(expected), input); } #[proptest] fn roundtrip_header(header: Header) { - let raw: [u8; 4] = header.into(); + let raw: [u8; Header::SIZE] = header.into(); assert_eq!( Header::parse(raw).expect("failed to roundtrip header"), From d0aa0b47ed55cb5340c9890b0aa28ef0dfd51f2a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 11 May 2023 13:44:09 +0200 Subject: [PATCH 400/735] juliet: Add fuzzing for header inputs --- juliet/proptest-regressions/header.txt | 7 +++++++ juliet/src/header.rs | 22 +++++++++++++++++++++- 2 files changed, 28 insertions(+), 1 deletion(-) create mode 100644 juliet/proptest-regressions/header.txt diff --git a/juliet/proptest-regressions/header.txt b/juliet/proptest-regressions/header.txt new file mode 100644 index 0000000000..7cc8d26d55 --- /dev/null +++ b/juliet/proptest-regressions/header.txt @@ -0,0 +1,7 @@ +# Seeds for failure cases proptest has generated in the past. It is +# automatically read and these particular cases re-run before any +# novel cases are generated. +# +# It is recommended to check this file in to source control so that +# everyone who runs the test benefits from these saved cases. +cc f122aa653a1e96699ace549caf46dc063d11f10b612839616aedf6bf6053f3fe # shrinks to raw = [8, 0, 0, 0] diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 329c12d54e..6353f8792c 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -276,7 +276,7 @@ mod tests { } #[proptest] - fn roundtrip_header(header: Header) { + fn roundtrip_valid_headers(header: Header) { let raw: [u8; Header::SIZE] = header.into(); assert_eq!( @@ -291,4 +291,24 @@ mod tests { drop(header.kind()); } } + + #[proptest] + fn fuzz_header(raw: [u8; Header::SIZE]) { + match Header::parse(raw) { + Some(header) => { + let rebuilt = if header.is_error() { + Header::new_error(header.error_kind(), header.channel(), header.id()) + } else { + Header::new(header.kind(), header.channel(), header.id()) + }; + + // Ensure reserved bits are zeroed upon reading. + let reencoded: [u8; Header::SIZE] = rebuilt.into(); + assert_eq!(reencoded, raw); + } + None => { + // All good, simply failed to parse. + } + } + } } From 8d771223c623ca37e5719ba2c9d18532b9173814 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 11 May 2023 14:07:38 +0200 Subject: [PATCH 401/735] juliet: Fix more header parsing issues found by fuzzing --- juliet/src/header.rs | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 6353f8792c..50393b92c6 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -133,10 +133,13 @@ impl Header { /// /// Returns `None` if the given `raw` bytes are not a valid header. #[inline(always)] - pub(crate) fn parse(raw: [u8; Header::SIZE]) -> Option { + pub(crate) fn parse(mut raw: [u8; Header::SIZE]) -> Option { + // Zero-out reserved bits. + raw[0] &= Self::KIND_ERR_MASK | Self::KIND_ERR_BIT; + let header = Header(raw); - // Check that the kind byte is within valid range. + // Check that the kind byte is within valid range and mask reserved bits. if header.is_error() { if (header.kind_byte() & Self::KIND_ERR_MASK) > ErrorKind::HIGHEST as u8 { return None; @@ -145,6 +148,11 @@ impl Header { if (header.kind_byte() & Self::KIND_MASK) > Kind::HIGHEST as u8 { return None; } + + // Ensure the 4th bit is not set. + if header.0[0] & Self::KIND_MASK != header.0[0] { + return None; + } } Some(header) @@ -304,11 +312,23 @@ mod tests { // Ensure reserved bits are zeroed upon reading. let reencoded: [u8; Header::SIZE] = rebuilt.into(); - assert_eq!(reencoded, raw); + assert_eq!(rebuilt, header); + assert_eq!(reencoded, <[u8; Header::SIZE]>::from(header)); } None => { // All good, simply failed to parse. } } } + + #[test] + fn fuzz_header_regressions() { + // Bit 4, which is not `RESERVED`, but only valid for errors. + let raw = [8, 0, 0, 0]; + assert!(Header::parse(raw).is_none()); + + // Two reserved bits set. + let raw = [48, 0, 0, 0]; + assert!(Header::parse(raw).is_some()); + } } From c3fe73143fd918f3004a7a3e22fce5119db61d08 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 11 May 2023 15:10:01 +0200 Subject: [PATCH 402/735] juliet: Remove pre-RFC code --- juliet/src/error.rs | 34 ----- juliet/src/lib.rs | 334 +------------------------------------------- 2 files changed, 1 insertion(+), 367 deletions(-) delete mode 100644 juliet/src/error.rs diff --git a/juliet/src/error.rs b/juliet/src/error.rs deleted file mode 100644 index 3affd36885..0000000000 --- a/juliet/src/error.rs +++ /dev/null @@ -1,34 +0,0 @@ -//! Error type for `juliet`. - -use thiserror::Error; - -use crate::{ChannelId, Id}; - -/// Protocol violation. -#[derive(Debug, Error)] -pub enum Error { - /// The peer sent invalid flags in a header. - #[error("invalid flags: {0:010b}")] - InvalidFlags(u8), - /// A channel number that does not exist was encountered. - #[error("invalid channel: {0}")] - InvalidChannel(ChannelId), - /// Peer made too many requests (without awaiting sufficient responses). - #[error("request limit exceeded")] - RequestLimitExceeded, - /// Peer re-used an in-flight request ID. - #[error("duplicate request id")] // TODO: Add ID - DuplicateRequest, - /// Peer sent a response for a request that does not exist. - #[error("fictive request: {0}")] - FicticiousRequest(Id), - /// Peer attempted to cancel more requests than it made. - #[error("exceeded request cancellation allowance")] - ExceededRequestCancellationAllowance, - /// Peer wants to send a segment that, along with its header, would violate the payload size. - #[error("segment of {0} would exceed payload size limit")] - SegmentSizedExceeded(usize), - /// Variable size integer overflowed. - #[error("varint overflow")] - VarIntOverflow, -} diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index eb9a0f40d2..f69e3c9456 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,336 +1,4 @@ -mod error; mod header; -pub use error::Error; -use header::{Header, HeaderFlags, HEADER_SIZE}; -use std::{collections::BTreeSet, fmt::Debug}; - type ChannelId = u8; // TODO: newtype -type RequestId = u16; // TODO: newtype - -pub enum ReceiveOutcome { - /// We need at least the given amount of additional bytes before another item is produced. - NeedMore(usize), - Consumed { - value: T, - bytes_consumed: usize, - }, -} - -pub enum Frame<'a> { - Request { - id: RequestId, - channel: ChannelId, - payload: Option<&'a [u8]>, - }, - Response { - id: RequestId, - channel: ChannelId, - payload: Option<&'a [u8]>, - }, - Error { - code: RequestId, // TODO: Use error type here? - unverified_channel: u8, - payload: Option<&'a [u8]>, - }, - RequestCancellation { - id: RequestId, - channel: ChannelId, - }, -} - -#[derive(Debug)] -pub struct Receiver { - channels: [Channel; N], - request_limits: [u64; N], // TODO: Consider moving to `Channel`, see also: `increase_cancellation_allowance)`. - frame_size_limit: u32, -} - -#[derive(Debug)] -struct Channel { - pending: BTreeSet, - cancellation_allowance: u64, // TODO: Upper bound by max request in flight? -} - -impl Channel { - fn increase_cancellation_allowance(&mut self, request_limit: u64) { - self.cancellation_allowance = (self.cancellation_allowance + 1).min(request_limit); - } - - fn attempt_cancellation(&mut self) -> bool { - if self.cancellation_allowance > 0 { - self.cancellation_allowance -= 1; - true - } else { - false - } - } -} - -impl Receiver { - pub fn input<'a>(&mut self, buf: &'a [u8]) -> Result>, Error> { - let header_raw = match <[u8; HEADER_SIZE]>::try_from(&buf[0..HEADER_SIZE]) { - Ok(v) => v, - Err(_) => return Ok(ReceiveOutcome::NeedMore(HEADER_SIZE - buf.len())), - }; - - let header = Header::try_from(header_raw).map_err(Error::InvalidFlags)?; - - let no_header_buf = &buf[HEADER_SIZE..]; - - // Process a new header: - match header.flags { - HeaderFlags::ZeroSizedRequest => { - let channel = self.validate_request(&header)?; - let request_limit = self.request_limit(channel); - self.channel_mut(channel) - .increase_cancellation_allowance(request_limit); - - let frame = Frame::Request { - id: header.id, - channel, - payload: None, - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed: HEADER_SIZE, - }) - } - HeaderFlags::ZeroSizedResponse => { - let channel = self.validate_response(&header)?; - let frame = Frame::Response { - id: header.id, - channel, - payload: None, - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed: HEADER_SIZE, - }) - } - HeaderFlags::Error => { - let frame = Frame::Error { - code: header.id, - unverified_channel: header.channel, - payload: None, - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed: HEADER_SIZE, - }) - } - HeaderFlags::RequestCancellation => { - let channel = self.validate_request_cancellation(&header)?; - let frame = Frame::RequestCancellation { - id: header.id, - channel, - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed: HEADER_SIZE, - }) - } - HeaderFlags::ResponseCancellation => { - // TODO: Find a solution, we need to track requests without race conditions here. - todo!() - } - HeaderFlags::RequestWithPayload => { - let channel = self.validate_request(&header)?; - - match read_variable_payload(no_header_buf, self.segment_size_limit())? { - ReceiveOutcome::Consumed { - value, - mut bytes_consumed, - } => { - bytes_consumed += HEADER_SIZE; - self.channel_mut(channel).pending.insert(header.id); - let request_limit = self.request_limit(channel); - self.channel_mut(channel) - .increase_cancellation_allowance(request_limit); - - let frame = Frame::Request { - id: header.id, - channel, - payload: Some(value), - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed, - }) - } - ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), - } - } - HeaderFlags::ResponseWithPayload => { - let channel = self.validate_response(&header)?; - - match read_variable_payload(no_header_buf, self.segment_size_limit())? { - ReceiveOutcome::Consumed { - value, - mut bytes_consumed, - } => { - bytes_consumed += HEADER_SIZE; - self.channel_mut(channel).pending.remove(&header.id); - - let frame = Frame::Request { - id: header.id, - channel, - payload: Some(value), - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed, - }) - } - ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), - } - } - HeaderFlags::ErrorWithMessage => { - match read_variable_payload(no_header_buf, self.segment_size_limit())? { - ReceiveOutcome::Consumed { - value, - mut bytes_consumed, - } => { - bytes_consumed += HEADER_SIZE; - - let frame = Frame::Error { - code: header.id, - unverified_channel: header.channel, - payload: Some(value), - }; - - Ok(ReceiveOutcome::Consumed { - value: frame, - bytes_consumed, - }) - } - ReceiveOutcome::NeedMore(needed) => Ok(ReceiveOutcome::NeedMore(needed)), - } - } - } - } - - fn validate_channel(header: &Header) -> Result { - if (header.channel as usize) < N { - Ok(header.channel) - } else { - Err(Error::InvalidChannel(header.channel)) - } - } - - fn validate_request(&self, header: &Header) -> Result { - let channel_id = Self::validate_channel(&header)?; - let channel = self.channel(channel_id); - - if channel.pending.len() as u64 >= self.request_limit(channel_id) { - return Err(Error::RequestLimitExceeded); - } - - if channel.pending.contains(&header.id) { - return Err(Error::DuplicateRequest); - } - - Ok(channel_id) - } - - fn validate_request_cancellation(&mut self, header: &Header) -> Result { - let channel_id = Self::validate_channel(&header)?; - let channel = self.channel_mut(channel_id); - if !channel.attempt_cancellation() { - Err(Error::ExceededRequestCancellationAllowance) - } else { - Ok(channel_id) - } - } - - fn validate_response(&self, header: &Header) -> Result { - let channel_id = Self::validate_channel(&header)?; - let channel = self.channel(channel_id); - - if !channel.pending.contains(&header.id) { - return Err(Error::FicticiousRequest(header.id)); - } - - Ok(channel_id) - } - - fn channel(&self, channel_id: ChannelId) -> &Channel { - &self.channels[channel_id as usize] - } - - fn channel_mut(&mut self, channel_id: ChannelId) -> &mut Channel { - &mut self.channels[channel_id as usize] - } - - fn request_limit(&self, channel_id: ChannelId) -> u64 { - self.request_limits[channel_id as usize] - } - - fn segment_size_limit(&self) -> usize { - self.frame_size_limit.saturating_sub(HEADER_SIZE as u32) as usize - } -} - -fn read_varint_u32(input: &[u8]) -> Result, Error> { - // TODO: Handle overflow (should be an error)? - - let mut value = 0u32; - - for (idx, &c) in input.iter().enumerate() { - value |= (c & 0b0111_1111) as u32; - - if c & 0b1000_0000 != 0 { - if idx > 5 { - return Err(Error::VarIntOverflow); - } - - // More bits will follow. - value <<= 7; - } else { - return Ok(ReceiveOutcome::Consumed { - value, - bytes_consumed: idx + 1, - }); - } - } - - // We found no stop bit, so our integer is incomplete. - Ok(ReceiveOutcome::NeedMore(1)) -} - -fn read_variable_payload<'a>( - buf: &'a [u8], - limit: usize, -) -> Result, Error> { - let (value_len, mut bytes_consumed) = match read_varint_u32(buf)? { - ReceiveOutcome::NeedMore(needed) => return Ok(ReceiveOutcome::NeedMore(needed)), - ReceiveOutcome::Consumed { - value, - bytes_consumed, - } => (value, bytes_consumed), - }; - - let value_len = value_len as usize; - - if value_len + bytes_consumed < limit { - return Err(Error::SegmentSizedExceeded(value_len + bytes_consumed)); - } - - let payload = &buf[bytes_consumed..]; - if payload.len() < value_len { - return Ok(ReceiveOutcome::NeedMore(value_len - payload.len())); - } - - let value = &payload[..value_len]; - bytes_consumed += value.len(); - Ok(ReceiveOutcome::Consumed { - value, - bytes_consumed, - }) -} +type Id = u16; // TODO: newtype From d23821e80743e3043b1a39e66c8a88425095d465 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 13:01:42 +0200 Subject: [PATCH 403/735] juliet: Add varint32 support --- juliet/src/lib.rs | 1 + juliet/src/varint.rs | 153 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 154 insertions(+) create mode 100644 juliet/src/varint.rs diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index f69e3c9456..8e39fe92cc 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,4 +1,5 @@ mod header; +mod varint; type ChannelId = u8; // TODO: newtype type Id = u16; // TODO: newtype diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs new file mode 100644 index 0000000000..bc36591e39 --- /dev/null +++ b/juliet/src/varint.rs @@ -0,0 +1,153 @@ +//! Variable length integer encoding. +//! +//! This module implements the variable length encoding of 32 bit integers, as described in the +//! juliet RFC. + +use std::num::NonZeroU8; + +enum Varint32Result { + Incomplete, + TooLong, + Overflow, + Valid { + // Note: `offset` is a `NonZero` type to allow niche optimization by the compiler. The + // expected size for this `enum` on 64 bit systems is 8 bytes. + offset: NonZeroU8, + value: u32, + }, +} + +impl Varint32Result { + #[inline] + fn ok(self) -> Option { + match self { + Varint32Result::Incomplete => None, + Varint32Result::TooLong => None, + Varint32Result::Overflow => None, + Varint32Result::Valid { offset, value } => Some(value), + } + } + + #[track_caller] + #[inline] + fn unwrap(self) -> u32 { + self.ok().unwrap() + } + + #[track_caller] + #[inline] + + fn expect(self, msg: &str) -> u32 { + self.ok().expect(msg) + } +} + +fn decode_varint32(input: &[u8]) -> Varint32Result { + let mut value = 0u32; + + for (idx, &c) in input.iter().enumerate() { + value |= (c & 0b0111_1111) as u32; + + if idx > 4 && value & 0b1111_0000 != 0 { + return Varint32Result::Overflow; + } + + if c & 0b1000_0000 != 0 { + if idx > 4 { + return Varint32Result::TooLong; + } + + // More bits will follow. + value <<= 7; + } else { + return Varint32Result::Valid { + value, + offset: NonZeroU8::new((idx + 1) as u8).unwrap(), + }; + } + } + + // We found no stop bit, so our integer is incomplete. + Varint32Result::Incomplete +} + +#[repr(transparent)] +struct Varint32([u8; 6]); + +const VARINT_MASK: u8 = 0b0111_1111; + +impl Varint32 { + pub fn encode(mut value: u32) -> Self { + let mut output = [0u8; 6]; + let mut count = 0; + + while value > 0 { + output[count] = value as u8 & VARINT_MASK; + value = value >> 7; + if value > 0 { + output[count] |= !VARINT_MASK; + count += 1; + } + } + + output[5] = count as u8; + Varint32(output) + } +} + +impl AsRef<[u8]> for Varint32 { + fn as_ref(&self) -> &[u8] { + let len = self.0[5] as usize + 1; + &self.0[0..len] + } +} + +#[cfg(test)] +mod tests { + use crate::varint::decode_varint32; + + use super::Varint32; + + #[test] + fn encode_known_values() { + assert_eq!(Varint32::encode(0x00000000).as_ref(), &[0x00]); + assert_eq!(Varint32::encode(0x00000040).as_ref(), &[0x40]); + assert_eq!(Varint32::encode(0x0000007f).as_ref(), &[0x7f]); + assert_eq!(Varint32::encode(0x00000080).as_ref(), &[0x80, 0x01]); + assert_eq!(Varint32::encode(0x000000ff).as_ref(), &[0xff, 0x01]); + assert_eq!(Varint32::encode(0x000000ff).as_ref(), &[0xff, 0x01]); + assert_eq!(Varint32::encode(0x0000ffff).as_ref(), &[0xff, 0xff, 0x03]); + assert_eq!( + Varint32::encode(0xffffffff).as_ref(), + &[0xff, 0xff, 0xff, 0xff, 0x0f] + ); + + // 0x12345678 = 0b0001 0010001 1010001 0101100 1111000 + // 0001 10010001 11010001 10101100 11111000 + // 0x 01 91 d1 ac f8 + + assert_eq!( + Varint32::encode(0x12345678).as_ref(), + &[0xf8, 0xac, 0xd1, 0x91, 0x01] + ); + } + + #[test] + fn decode_known_values() { + assert_eq!(0x00000000, decode_varint32(&[0x00]).unwrap()); + assert_eq!(0x00000040, decode_varint32(&[0x40]).unwrap()); + assert_eq!(0x0000007f, decode_varint32(&[0x7f]).unwrap()); + assert_eq!(0x00000080, decode_varint32(&[0x80, 0x01]).unwrap()); + assert_eq!(0x000000ff, decode_varint32(&[0xff, 0x01]).unwrap()); + assert_eq!(0x000000ff, decode_varint32(&[0xff, 0x01]).unwrap()); + assert_eq!(0x0000ffff, decode_varint32(&[0xff, 0xff, 0x03]).unwrap()); + assert_eq!( + 0xffffffff, + decode_varint32(&[0xff, 0xff, 0xff, 0xff, 0x0f]).unwrap() + ); + assert_eq!( + 0x12345678, + decode_varint32(&[0xf8, 0xac, 0xd1, 0x91, 0x01]).unwrap() + ); + } +} From 56e222dd6cc533182e20ac0996a4e43e114b2376 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 13:07:23 +0200 Subject: [PATCH 404/735] juliet: Fix bugs in basic varint32 functionality --- juliet/src/varint.rs | 74 +++++++++++++++++--------------------------- 1 file changed, 28 insertions(+), 46 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index bc36591e39..44fd3272ec 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -5,6 +5,7 @@ use std::num::NonZeroU8; +#[derive(Copy, Clone, Debug)] enum Varint32Result { Incomplete, TooLong, @@ -17,38 +18,13 @@ enum Varint32Result { }, } -impl Varint32Result { - #[inline] - fn ok(self) -> Option { - match self { - Varint32Result::Incomplete => None, - Varint32Result::TooLong => None, - Varint32Result::Overflow => None, - Varint32Result::Valid { offset, value } => Some(value), - } - } - - #[track_caller] - #[inline] - fn unwrap(self) -> u32 { - self.ok().unwrap() - } - - #[track_caller] - #[inline] - - fn expect(self, msg: &str) -> u32 { - self.ok().expect(msg) - } -} - fn decode_varint32(input: &[u8]) -> Varint32Result { let mut value = 0u32; for (idx, &c) in input.iter().enumerate() { - value |= (c & 0b0111_1111) as u32; + value |= ((c & 0b0111_1111) as u32) << (idx * 7); - if idx > 4 && value & 0b1111_0000 != 0 { + if idx > 4 && c & 0b1111_0000 != 0 { return Varint32Result::Overflow; } @@ -56,9 +32,6 @@ fn decode_varint32(input: &[u8]) -> Varint32Result { if idx > 4 { return Varint32Result::TooLong; } - - // More bits will follow. - value <<= 7; } else { return Varint32Result::Valid { value, @@ -104,7 +77,7 @@ impl AsRef<[u8]> for Varint32 { #[cfg(test)] mod tests { - use crate::varint::decode_varint32; + use crate::varint::{decode_varint32, Varint32Result}; use super::Varint32; @@ -132,22 +105,31 @@ mod tests { ); } + #[track_caller] + fn check_decode(expected: u32, input: &[u8]) { + let decoded = decode_varint32(input); + + match decoded { + Varint32Result::Incomplete | Varint32Result::TooLong | Varint32Result::Overflow => { + panic!("unexpected outcome: {:?}", decoded) + } + Varint32Result::Valid { offset, value } => { + assert_eq!(expected, value); + assert_eq!(offset.get() as usize, input.len()); + } + } + } + #[test] fn decode_known_values() { - assert_eq!(0x00000000, decode_varint32(&[0x00]).unwrap()); - assert_eq!(0x00000040, decode_varint32(&[0x40]).unwrap()); - assert_eq!(0x0000007f, decode_varint32(&[0x7f]).unwrap()); - assert_eq!(0x00000080, decode_varint32(&[0x80, 0x01]).unwrap()); - assert_eq!(0x000000ff, decode_varint32(&[0xff, 0x01]).unwrap()); - assert_eq!(0x000000ff, decode_varint32(&[0xff, 0x01]).unwrap()); - assert_eq!(0x0000ffff, decode_varint32(&[0xff, 0xff, 0x03]).unwrap()); - assert_eq!( - 0xffffffff, - decode_varint32(&[0xff, 0xff, 0xff, 0xff, 0x0f]).unwrap() - ); - assert_eq!( - 0x12345678, - decode_varint32(&[0xf8, 0xac, 0xd1, 0x91, 0x01]).unwrap() - ); + check_decode(0x00000000, &[0x00]); + check_decode(0x00000040, &[0x40]); + check_decode(0x0000007f, &[0x7f]); + check_decode(0x00000080, &[0x80, 0x01]); + check_decode(0x000000ff, &[0xff, 0x01]); + check_decode(0x000000ff, &[0xff, 0x01]); + check_decode(0x0000ffff, &[0xff, 0xff, 0x03]); + check_decode(0xffffffff, &[0xff, 0xff, 0xff, 0xff, 0x0f]); + check_decode(0x12345678, &[0xf8, 0xac, 0xd1, 0x91, 0x01]); } } From 4b433fd1e03a43a65c33977208cf8b90dda020c4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 13:12:16 +0200 Subject: [PATCH 405/735] juliet: Add proptest roundtrips for varint32 --- juliet/src/varint.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 44fd3272ec..d06d1f3d6a 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -18,6 +18,18 @@ enum Varint32Result { }, } +impl Varint32Result { + #[track_caller] + pub fn unwrap(self) -> (NonZeroU8, u32) { + match self { + Varint32Result::Incomplete | Varint32Result::TooLong | Varint32Result::Overflow => { + panic!("`unwrap` called on invalid `Varint32Result`") + } + Varint32Result::Valid { offset, value } => (offset, value), + } + } +} + fn decode_varint32(input: &[u8]) -> Varint32Result { let mut value = 0u32; @@ -77,6 +89,8 @@ impl AsRef<[u8]> for Varint32 { #[cfg(test)] mod tests { + use proptest_attr_macro::proptest; + use crate::varint::{decode_varint32, Varint32Result}; use super::Varint32; @@ -132,4 +146,14 @@ mod tests { check_decode(0xffffffff, &[0xff, 0xff, 0xff, 0xff, 0x0f]); check_decode(0x12345678, &[0xf8, 0xac, 0xd1, 0x91, 0x01]); } + + #[proptest] + fn roundtrip_value(value: u32) { + let encoded = Varint32::encode(value); + let decoded = decode_varint32(encoded.as_ref()); + + let (offset, decoded_value) = decoded.unwrap(); + assert_eq!(value, decoded_value); + assert_eq!(offset.get() as usize, encoded.as_ref().len()); + } } From b1e248ae5bb0518e25ecbe52d8fcfd028caf26e0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 13:55:21 +0200 Subject: [PATCH 406/735] juliet: Check unsuccessful decoding conditions and partials of varin32 --- juliet/src/varint.rs | 66 +++++++++++++++++++++++++++----------------- 1 file changed, 40 insertions(+), 26 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index d06d1f3d6a..ddf24f8472 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -8,7 +8,6 @@ use std::num::NonZeroU8; #[derive(Copy, Clone, Debug)] enum Varint32Result { Incomplete, - TooLong, Overflow, Valid { // Note: `offset` is a `NonZero` type to allow niche optimization by the compiler. The @@ -18,33 +17,17 @@ enum Varint32Result { }, } -impl Varint32Result { - #[track_caller] - pub fn unwrap(self) -> (NonZeroU8, u32) { - match self { - Varint32Result::Incomplete | Varint32Result::TooLong | Varint32Result::Overflow => { - panic!("`unwrap` called on invalid `Varint32Result`") - } - Varint32Result::Valid { offset, value } => (offset, value), - } - } -} - fn decode_varint32(input: &[u8]) -> Varint32Result { let mut value = 0u32; for (idx, &c) in input.iter().enumerate() { - value |= ((c & 0b0111_1111) as u32) << (idx * 7); - - if idx > 4 && c & 0b1111_0000 != 0 { + if idx >= 4 && c & 0b1111_0000 != 0 { return Varint32Result::Overflow; } - if c & 0b1000_0000 != 0 { - if idx > 4 { - return Varint32Result::TooLong; - } - } else { + value |= ((c & 0b0111_1111) as u32) << (idx * 7); + + if c & 0b1000_0000 == 0 { return Varint32Result::Valid { value, offset: NonZeroU8::new((idx + 1) as u8).unwrap(), @@ -124,7 +107,7 @@ mod tests { let decoded = decode_varint32(input); match decoded { - Varint32Result::Incomplete | Varint32Result::TooLong | Varint32Result::Overflow => { + Varint32Result::Incomplete | Varint32Result::Overflow => { panic!("unexpected outcome: {:?}", decoded) } Varint32Result::Valid { offset, value } => { @@ -132,6 +115,19 @@ mod tests { assert_eq!(offset.get() as usize, input.len()); } } + + // Also ensure that all partial outputs yield `Incomplete`. + let mut l = input.len(); + + while l > 1 { + l -= 1; + + let partial = &input.as_ref()[0..l]; + assert!(matches!( + decode_varint32(partial), + Varint32Result::Incomplete + )); + } } #[test] @@ -144,16 +140,34 @@ mod tests { check_decode(0x000000ff, &[0xff, 0x01]); check_decode(0x0000ffff, &[0xff, 0xff, 0x03]); check_decode(0xffffffff, &[0xff, 0xff, 0xff, 0xff, 0x0f]); + check_decode(0xf0000000, &[0x80, 0x80, 0x80, 0x80, 0x0f]); check_decode(0x12345678, &[0xf8, 0xac, 0xd1, 0x91, 0x01]); } #[proptest] fn roundtrip_value(value: u32) { let encoded = Varint32::encode(value); - let decoded = decode_varint32(encoded.as_ref()); + check_decode(value, encoded.as_ref()); + } - let (offset, decoded_value) = decoded.unwrap(); - assert_eq!(value, decoded_value); - assert_eq!(offset.get() as usize, encoded.as_ref().len()); + #[test] + fn check_error_conditions() { + // Value is too long (no more than 5 bytes allowed). + assert!(matches!( + decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x80, 0x01]), + Varint32Result::Overflow + )); + + // This behavior should already trigger on the fifth byte. + assert!(matches!( + decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x80]), + Varint32Result::Overflow + )); + + // Value is too big to be held by a `u32`. + assert!(matches!( + decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x10]), + Varint32Result::Overflow + )); } } From 6ae8ae8542032391c1c12f5eaeff33651b4e006f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 14:06:13 +0200 Subject: [PATCH 407/735] juliet: Add fuzzing for varint32 --- juliet/src/varint.rs | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index ddf24f8472..5eef36f19b 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -72,6 +72,7 @@ impl AsRef<[u8]> for Varint32 { #[cfg(test)] mod tests { + use proptest::prelude::{any, prop::collection}; use proptest_attr_macro::proptest; use crate::varint::{decode_varint32, Varint32Result}; @@ -170,4 +171,13 @@ mod tests { Varint32Result::Overflow )); } + + proptest::proptest! { + #[test] + fn fuzz_varint(data in collection::vec(any::(), 0..256)) { + if let Varint32Result::Valid{ offset, value } = decode_varint32(&data) { + let valid_substring = &data[0..(offset.get() as usize)]; + check_decode(value, valid_substring); + } + }} } From c6c2e75317d46e9565d09e2f757100dd0fbd0e8a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 14:17:55 +0200 Subject: [PATCH 408/735] juliet: Remove duplicate test value --- juliet/src/varint.rs | 2 -- 1 file changed, 2 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 5eef36f19b..f76744e354 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -86,7 +86,6 @@ mod tests { assert_eq!(Varint32::encode(0x0000007f).as_ref(), &[0x7f]); assert_eq!(Varint32::encode(0x00000080).as_ref(), &[0x80, 0x01]); assert_eq!(Varint32::encode(0x000000ff).as_ref(), &[0xff, 0x01]); - assert_eq!(Varint32::encode(0x000000ff).as_ref(), &[0xff, 0x01]); assert_eq!(Varint32::encode(0x0000ffff).as_ref(), &[0xff, 0xff, 0x03]); assert_eq!( Varint32::encode(0xffffffff).as_ref(), @@ -138,7 +137,6 @@ mod tests { check_decode(0x0000007f, &[0x7f]); check_decode(0x00000080, &[0x80, 0x01]); check_decode(0x000000ff, &[0xff, 0x01]); - check_decode(0x000000ff, &[0xff, 0x01]); check_decode(0x0000ffff, &[0xff, 0xff, 0x03]); check_decode(0xffffffff, &[0xff, 0xff, 0xff, 0xff, 0x0f]); check_decode(0xf0000000, &[0x80, 0x80, 0x80, 0x80, 0x0f]); From 1affd03418f16243c80171d8444ae8eea2469db4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 14:25:26 +0200 Subject: [PATCH 409/735] juliet: Complete docs for `varint` module --- juliet/src/lib.rs | 2 +- juliet/src/varint.rs | 26 +++++++++++++++++++------- 2 files changed, 20 insertions(+), 8 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 8e39fe92cc..72be557e65 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,5 +1,5 @@ mod header; -mod varint; +pub mod varint; type ChannelId = u8; // TODO: newtype type Id = u16; // TODO: newtype diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index f76744e354..407b44d90a 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -5,19 +5,29 @@ use std::num::NonZeroU8; +/// The bitmask to separate the data-follows bit from actual value bits. +const VARINT_MASK: u8 = 0b0111_1111; + +/// The outcome of a Varint32 decoding. #[derive(Copy, Clone, Debug)] -enum Varint32Result { +pub enum Varint32Result { + /// The input provided indicated more bytes are to follow than available. Incomplete, + /// Parsing stopped because the resulting integer would exceed `u32::MAX`. Overflow, + /// Parsing was successful. Valid { // Note: `offset` is a `NonZero` type to allow niche optimization by the compiler. The // expected size for this `enum` on 64 bit systems is 8 bytes. + /// The number of bytes consumed by the varint32. offset: NonZeroU8, + /// The actual parsed value. value: u32, }, } -fn decode_varint32(input: &[u8]) -> Varint32Result { +/// Decodes a varint32 from the given input. +pub fn decode_varint32(input: &[u8]) -> Varint32Result { let mut value = 0u32; for (idx, &c) in input.iter().enumerate() { @@ -39,12 +49,14 @@ fn decode_varint32(input: &[u8]) -> Varint32Result { Varint32Result::Incomplete } +/// An encoded varint32. +/// +/// Internally these are stored as six byte arrays to make passing around convenient. #[repr(transparent)] -struct Varint32([u8; 6]); - -const VARINT_MASK: u8 = 0b0111_1111; +pub struct Varint32([u8; 6]); impl Varint32 { + /// Encode a 32-bit integer to variable length. pub fn encode(mut value: u32) -> Self { let mut output = [0u8; 6]; let mut count = 0; @@ -88,7 +100,7 @@ mod tests { assert_eq!(Varint32::encode(0x000000ff).as_ref(), &[0xff, 0x01]); assert_eq!(Varint32::encode(0x0000ffff).as_ref(), &[0xff, 0xff, 0x03]); assert_eq!( - Varint32::encode(0xffffffff).as_ref(), + Varint32::encode(u32::MAX).as_ref(), &[0xff, 0xff, 0xff, 0xff, 0x0f] ); @@ -138,7 +150,7 @@ mod tests { check_decode(0x00000080, &[0x80, 0x01]); check_decode(0x000000ff, &[0xff, 0x01]); check_decode(0x0000ffff, &[0xff, 0xff, 0x03]); - check_decode(0xffffffff, &[0xff, 0xff, 0xff, 0xff, 0x0f]); + check_decode(u32::MAX, &[0xff, 0xff, 0xff, 0xff, 0x0f]); check_decode(0xf0000000, &[0x80, 0x80, 0x80, 0x80, 0x0f]); check_decode(0x12345678, &[0xf8, 0xac, 0xd1, 0x91, 0x01]); } From 244ece0b9e208112376104695e3411f50a576c48 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 14:45:02 +0200 Subject: [PATCH 410/735] juliet: Introduce wrapper newtypes for `ChannelId` and `Id` --- juliet/src/header.rs | 15 +++--- juliet/src/lib.rs | 106 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 112 insertions(+), 9 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 50393b92c6..da09d8f4bb 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -113,17 +113,17 @@ impl Header { /// Creates a new non-error header. #[inline(always)] pub(crate) fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { - let id = id.to_le_bytes(); - Header([kind as u8, channel as u8, id[0], id[1]]) + let id = id.get().to_le_bytes(); + Header([kind as u8, channel.get(), id[0], id[1]]) } /// Creates a new error header. #[inline(always)] pub(crate) fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { - let id = id.to_le_bytes(); + let id = id.get().to_le_bytes(); Header([ kind as u8 | Header::KIND_ERR_BIT, - channel as u8, + channel.get(), id[0], id[1], ]) @@ -167,14 +167,14 @@ impl Header { /// Returns the channel. #[inline(always)] pub(crate) fn channel(self) -> ChannelId { - self.0[1] + ChannelId::new(self.0[1]) } /// Returns the id. #[inline(always)] pub(crate) fn id(self) -> Id { let [_, _, id @ ..] = self.0; - Id::from_le_bytes(id) + Id::new(u16::from_le_bytes(id)) } /// Returns whether the error bit is set. @@ -274,7 +274,8 @@ mod tests { #[test] fn known_headers() { let input = [0x86, 0x48, 0xAA, 0xBB]; - let expected = Header::new_error(ErrorKind::InProgress, 0x48, 0xBBAA); + let expected = + Header::new_error(ErrorKind::InProgress, ChannelId::new(0x48), Id::new(0xBBAA)); assert_eq!( Header::parse(input).expect("could not parse header"), diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 72be557e65..46035d2095 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,5 +1,107 @@ +use std::fmt::{self, Display}; + mod header; pub mod varint; -type ChannelId = u8; // TODO: newtype -type Id = u16; // TODO: newtype +/// A channel identifier. +/// +/// Newtype wrapper to prevent accidental mixups between regular [`u8`]s and those used as channel +/// IDs. Does not indicate whether or not a channel ID is actually valid, i.e. a channel that +/// exists. +#[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialOrd, PartialEq)] +#[repr(transparent)] +struct ChannelId(u8); + +impl Display for ChannelId { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + Display::fmt(&self.0, f) + } +} + +impl ChannelId { + /// Creates a new channel ID. + #[inline(always)] + pub fn new(chan: u8) -> Self { + ChannelId(chan) + } + + /// Returns the channel ID as [`u8`]. + #[inline(always)] + pub fn get(self) -> u8 { + self.0 + } +} + +impl From for u8 { + #[inline(always)] + fn from(value: ChannelId) -> Self { + value.get() + } +} + +/// An identifier for a `juliet` message. +/// +/// Newtype wrapper to prevent accidental mixups between regular [`u16`]s and those used as IDs. +/// Does not indicate whether or not an ID refers to an existing request. +#[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialOrd, PartialEq)] +#[repr(transparent)] +struct Id(u16); + +impl Display for Id { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + Display::fmt(&self.0, f) + } +} + +impl Id { + /// Creates a new identifier. + #[inline(always)] + pub fn new(id: u16) -> Self { + Id(id) + } + + /// Returns the channel ID as [`u16`]. + #[inline(always)] + pub fn get(self) -> u16 { + self.0 + } +} + +impl From for u16 { + #[inline(always)] + fn from(value: Id) -> Self { + value.get() + } +} + +#[cfg(test)] +mod tests { + use proptest::{ + prelude::Arbitrary, + strategy::{Map, Strategy}, + }; + + use crate::{ChannelId, Id}; + + impl Arbitrary for ChannelId { + type Parameters = ::Parameters; + + #[inline] + fn arbitrary_with(args: Self::Parameters) -> Self::Strategy { + ::arbitrary_with(args).prop_map(Self::new) + } + + type Strategy = Map<::Strategy, fn(u8) -> Self>; + } + + impl Arbitrary for Id { + type Parameters = ::Parameters; + + #[inline] + fn arbitrary_with(args: Self::Parameters) -> Self::Strategy { + ::arbitrary_with(args).prop_map(Self::new) + } + + type Strategy = Map<::Strategy, fn(u16) -> Self>; + } +} From 37e4d31163d686e9aefa516237fbd805aec4998c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 16:51:25 +0200 Subject: [PATCH 411/735] juliet: Add partial request handling --- Cargo.lock | 1 + juliet/Cargo.toml | 1 + juliet/src/header.rs | 4 +- juliet/src/lib.rs | 9 +-- juliet/src/reader.rs | 167 +++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 176 insertions(+), 6 deletions(-) create mode 100644 juliet/src/reader.rs diff --git a/Cargo.lock b/Cargo.lock index e19b58f6aa..ab4b2c7395 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2462,6 +2462,7 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ + "bytes", "proptest", "proptest-attr-macro", "proptest-derive", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 8d5fbd1b41..d1af1860b7 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,6 +5,7 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] +bytes = "1.4.0" thiserror = "1.0.40" [dev-dependencies] diff --git a/juliet/src/header.rs b/juliet/src/header.rs index da09d8f4bb..59ca687653 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -102,7 +102,7 @@ impl Kind { impl Header { /// The size (in bytes) of a header. - const SIZE: usize = 4; + pub(crate) const SIZE: usize = 4; /// Bitmask returning the error bit of the kind byte. const KIND_ERR_BIT: u8 = 0b1000_0000; /// Bitmask returning the error kind inside the kind byte. @@ -179,7 +179,7 @@ impl Header { /// Returns whether the error bit is set. #[inline(always)] - fn is_error(self) -> bool { + pub(crate) fn is_error(self) -> bool { self.kind_byte() & Self::KIND_ERR_BIT == Self::KIND_ERR_BIT } diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 46035d2095..745cd41495 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,6 +1,7 @@ use std::fmt::{self, Display}; mod header; +mod reader; pub mod varint; /// A channel identifier. @@ -21,13 +22,13 @@ impl Display for ChannelId { impl ChannelId { /// Creates a new channel ID. #[inline(always)] - pub fn new(chan: u8) -> Self { + pub const fn new(chan: u8) -> Self { ChannelId(chan) } /// Returns the channel ID as [`u8`]. #[inline(always)] - pub fn get(self) -> u8 { + pub const fn get(self) -> u8 { self.0 } } @@ -56,13 +57,13 @@ impl Display for Id { impl Id { /// Creates a new identifier. #[inline(always)] - pub fn new(id: u16) -> Self { + pub const fn new(id: u16) -> Self { Id(id) } /// Returns the channel ID as [`u16`]. #[inline(always)] - pub fn get(self) -> u16 { + pub const fn get(self) -> u16 { self.0 } } diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs new file mode 100644 index 0000000000..ee25f72b8c --- /dev/null +++ b/juliet/src/reader.rs @@ -0,0 +1,167 @@ +use std::collections::HashSet; + +use bytes::{Buf, Bytes, BytesMut}; + +use crate::{ + header::{ErrorKind, Header, Kind}, + varint::{decode_varint32, Varint32Result}, + ChannelId, Id, +}; + +const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); +const UNKNOWN_ID: Id = Id::new(0); + +#[derive(Debug)] +pub struct State { + channels: [Channel; N], + max_frame_size: u32, +} + +#[derive(Debug)] +struct Channel { + incoming_requests: HashSet, + outgoing_requests: HashSet, + request_limit: u32, + max_request_payload_size: u32, + max_response_payload_size: u32, + current_request_state: RequestState, +} + +#[derive(Debug)] +enum RequestState { + Ready, + InProgress { header: Header }, +} + +impl Channel { + #[inline] + fn in_flight_requests(&self) -> u32 { + self.incoming_requests.len() as u32 + } + + #[inline] + fn is_at_max_requests(&self) -> bool { + self.in_flight_requests() == self.request_limit + } +} + +enum ReadOutcome { + Incomplete(usize), + ReturnError(Header), + ErrorReceived(Header), + NewRequest { id: Id, payload: Option }, +} + +impl Header { + #[inline] + fn return_err(self, kind: ErrorKind) -> ReadOutcome { + ReadOutcome::ReturnError(Header::new_error(kind, self.channel(), self.id())) + } +} + +impl State { + fn process_data(&mut self, mut buffer: BytesMut) -> ReadOutcome { + // First, attempt to complete a frame. + loop { + // We do not have enough data to extract a header, indicate and return. + if buffer.len() < Header::SIZE { + return ReadOutcome::Incomplete(Header::SIZE - buffer.len()); + } + + let header_raw: [u8; Header::SIZE] = buffer[0..Header::SIZE].try_into().unwrap(); + let header = match Header::parse(header_raw) { + Some(header) => header, + None => { + // The header was invalid, return an error. + return ReadOutcome::ReturnError(Header::new_error( + ErrorKind::InvalidHeader, + UNKNOWN_CHANNEL, + UNKNOWN_ID, + )); + } + }; + + // We have a valid header, check if it is an error. + if header.is_error() { + // TODO: Read the payload of `OTHER` errors. + return ReadOutcome::ErrorReceived(header); + } + + // At this point we are guaranteed a valid non-error frame, which has to be on a valid + // channel. + let channel = match self.channels.get_mut(header.channel().get() as usize) { + Some(channel) => channel, + None => return header.return_err(ErrorKind::InvalidChannel), + }; + + match header.kind() { + Kind::Request => { + if channel.is_at_max_requests() { + return header.return_err(ErrorKind::RequestLimitExceeded); + } + + if channel.incoming_requests.insert(header.id()) { + return header.return_err(ErrorKind::DuplicateRequest); + } + + // At this point, we have a valid request and its ID has been added to our + // incoming set. All we need to do now is to remove it from the buffer. + buffer.advance(Header::SIZE); + + return ReadOutcome::NewRequest { + id: header.id(), + payload: None, + }; + } + Kind::Response => todo!(), + Kind::RequestPl => match channel.current_request_state { + RequestState::Ready => { + if channel.is_at_max_requests() { + return header.return_err(ErrorKind::RequestLimitExceeded); + } + + if channel.incoming_requests.insert(header.id()) { + return header.return_err(ErrorKind::DuplicateRequest); + } + + let segment_buf = &buffer[0..Header::SIZE]; + + match decode_varint32(segment_buf) { + Varint32Result::Incomplete => return ReadOutcome::Incomplete(1), + Varint32Result::Overflow => { + return header.return_err(ErrorKind::BadVarInt) + } + Varint32Result::Valid { offset, value } => { + // TODO: Check frame boundary. + + let offset = offset.get() as usize; + let total_size = value as usize; + + let payload_buf = &segment_buf[offset..]; + if payload_buf.len() >= total_size as usize { + // Entire payload is already in segment. We can just remove it + // from the buffer and return. + + buffer.advance(Header::SIZE + offset); + let payload = buffer.split_to(total_size).freeze(); + return ReadOutcome::NewRequest { + id: header.id(), + payload: Some(payload), + }; + } + + todo!() // doesn't fit - check if the segment was filled completely. + } + } + } + RequestState::InProgress { header } => { + todo!() + } + }, + Kind::ResponsePl => todo!(), + Kind::CancelReq => todo!(), + Kind::CancelResp => todo!(), + } + } + } +} From 91b0f7b6d87e73d4bcb04eeed1736faed9bc6491 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 16:58:52 +0200 Subject: [PATCH 412/735] Generalize `Outcome` out of `ReadOutcome` --- juliet/src/reader.rs | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index ee25f72b8c..099a4a77de 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -45,27 +45,33 @@ impl Channel { } } -enum ReadOutcome { - Incomplete(usize), - ReturnError(Header), +enum CompletedRead { ErrorReceived(Header), NewRequest { id: Id, payload: Option }, } +enum Outcome { + Incomplete(usize), + ProtocolErr(Header), + Success(T), +} + +use Outcome::{Incomplete, ProtocolErr, Success}; + impl Header { #[inline] - fn return_err(self, kind: ErrorKind) -> ReadOutcome { - ReadOutcome::ReturnError(Header::new_error(kind, self.channel(), self.id())) + fn return_err(self, kind: ErrorKind) -> Outcome { + Outcome::ProtocolErr(Header::new_error(kind, self.channel(), self.id())) } } impl State { - fn process_data(&mut self, mut buffer: BytesMut) -> ReadOutcome { + fn process_data(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { // We do not have enough data to extract a header, indicate and return. if buffer.len() < Header::SIZE { - return ReadOutcome::Incomplete(Header::SIZE - buffer.len()); + return Incomplete(Header::SIZE - buffer.len()); } let header_raw: [u8; Header::SIZE] = buffer[0..Header::SIZE].try_into().unwrap(); @@ -73,7 +79,7 @@ impl State { Some(header) => header, None => { // The header was invalid, return an error. - return ReadOutcome::ReturnError(Header::new_error( + return ProtocolErr(Header::new_error( ErrorKind::InvalidHeader, UNKNOWN_CHANNEL, UNKNOWN_ID, @@ -84,7 +90,7 @@ impl State { // We have a valid header, check if it is an error. if header.is_error() { // TODO: Read the payload of `OTHER` errors. - return ReadOutcome::ErrorReceived(header); + return Success(CompletedRead::ErrorReceived(header)); } // At this point we are guaranteed a valid non-error frame, which has to be on a valid @@ -108,10 +114,10 @@ impl State { // incoming set. All we need to do now is to remove it from the buffer. buffer.advance(Header::SIZE); - return ReadOutcome::NewRequest { + return Success(CompletedRead::NewRequest { id: header.id(), payload: None, - }; + }); } Kind::Response => todo!(), Kind::RequestPl => match channel.current_request_state { @@ -127,7 +133,7 @@ impl State { let segment_buf = &buffer[0..Header::SIZE]; match decode_varint32(segment_buf) { - Varint32Result::Incomplete => return ReadOutcome::Incomplete(1), + Varint32Result::Incomplete => return Incomplete(1), Varint32Result::Overflow => { return header.return_err(ErrorKind::BadVarInt) } @@ -144,10 +150,10 @@ impl State { buffer.advance(Header::SIZE + offset); let payload = buffer.split_to(total_size).freeze(); - return ReadOutcome::NewRequest { + return Success(CompletedRead::NewRequest { id: header.id(), payload: Some(payload), - }; + }); } todo!() // doesn't fit - check if the segment was filled completely. From 513288fe007426983655f22feedac653122d21db Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 12 May 2023 17:29:03 +0200 Subject: [PATCH 413/735] juliet: Draft logic for `RequestState` accepting data --- juliet/src/reader.rs | 75 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 74 insertions(+), 1 deletion(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 099a4a77de..64dd85dfc2 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -30,7 +30,70 @@ struct Channel { #[derive(Debug)] enum RequestState { Ready, - InProgress { header: Header }, + InProgress { header: Header, payload: BytesMut }, +} + +impl RequestState { + /// Accept additional data to be written. + /// + /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` + /// past header and payload only on success. + fn accept( + &mut self, + header: Header, + buffer: &mut BytesMut, + max_frame_size: u32, + ) -> Outcome { + debug_assert!( + max_frame_size >= 10, + "maximum frame size must be enough to hold header and varint" + ); + + match self { + RequestState::Ready => { + // We have a new segment, which has a variable size. + let segment_buf = &buffer[0..Header::SIZE]; + + match decode_varint32(segment_buf) { + Varint32Result::Incomplete => return Incomplete(1), + Varint32Result::Overflow => return header.return_err(ErrorKind::BadVarInt), + Varint32Result::Valid { + offset, + value: total_payload_size, + } => { + // We have a valid varint32. Let's see if we're inside the frame boundary. + let preamble_size = Header::SIZE as u32 + offset.get() as u32; + let max_data_in_frame = (max_frame_size - preamble_size) as u32; + + // Drop header and length. + buffer.advance(preamble_size as usize); + if total_payload_size <= max_data_in_frame { + let payload = buffer.split_to(total_payload_size as usize); + + // No need to alter the state, we stay `Ready`. + return Success(payload); + } + + // The length exceeds the frame boundary, split to maximum and store that. + let partial_payload = + buffer.split_to((max_frame_size - preamble_size) as usize); + + *self = RequestState::InProgress { + header, + payload: partial_payload, + }; + + // TODO: THIS IS WRONG. LOOP READING. AND CONSIDER ACTUAL BUFFER LENGTH + // ABOVE. We need at least a header to proceed further on. + return Incomplete(Header::SIZE); + } + } + + todo!() + } + RequestState::InProgress { header, payload } => todo!(), + } + } } impl Channel { @@ -56,6 +119,16 @@ enum Outcome { Success(T), } +macro_rules! try_outcome { + ($src:expr) => { + match $src { + Outcome::Incomplete(n) => return Outcome::Incomplete(n), + Outcome::ProtocolErr(header) return Outcome::ProtocolErr(header), + Outcome::Success(value) => value, + } + }; +} + use Outcome::{Incomplete, ProtocolErr, Success}; impl Header { From 0fb5c9037a17a9112fec32db125046aeab8a9d83 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 13 May 2023 13:31:16 +0200 Subject: [PATCH 414/735] juliet: Factor our `Outcome` to top level crate --- juliet/src/header.rs | 8 +++++++- juliet/src/lib.rs | 27 +++++++++++++++++++++++++++ juliet/src/reader.rs | 10 ++++++---- 3 files changed, 40 insertions(+), 5 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 59ca687653..63a9fbc5bf 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,7 +1,7 @@ //! `juliet` header parsing and serialization. use std::fmt::Debug; -use crate::{ChannelId, Id}; +use crate::{ChannelId, Id, Outcome}; /// Header structure. #[derive(Copy, Clone, Eq, PartialEq)] #[repr(transparent)] @@ -230,6 +230,12 @@ impl Header { _ => unreachable!(), } } + + /// Creates an [`Outcome::ProtocolErr`] with the given kind, and the header's id and channel. + #[inline] + pub(crate) fn err_outcome(self, kind: ErrorKind) -> Outcome { + Outcome::Err(Header::new_error(kind, self.channel(), self.id())) + } } impl From
for [u8; Header::SIZE] { diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 745cd41495..481b8ed729 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -75,6 +75,33 @@ impl From for u16 { } } +/// The outcome from a parsing operation over a potentially incomplete buffer. +#[derive(Debug)] +#[must_use] +pub enum Outcome { + /// The given data was incomplete, at least the given amount of additional bytes is needed. + Incomplete(usize), + /// An fatal error was found in the given input. + Err(E), + /// The parse was successful and the underlying buffer has been modified to extract `T`. + Success(T), +} + +/// `try!` for [`Outcome`]. +/// +/// Will return [`Outcome::Incomplete`] and [`Outcome::Err`] upwards, or unwrap the value found in +/// [`Outcome::Success`]. +#[macro_export] +macro_rules! try_outcome { + ($src:expr) => { + match $src { + Outcome::Incomplete(n) => return Outcome::Incomplete(n), + Outcome::Err(err) return Outcome::Err(err.into()), + Outcome::Success(value) => value, + } + }; +} + #[cfg(test)] mod tests { use proptest::{ diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 099a4a77de..7712a6e960 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -4,8 +4,10 @@ use bytes::{Buf, Bytes, BytesMut}; use crate::{ header::{ErrorKind, Header, Kind}, + multiframe::MultiFrameReader, varint::{decode_varint32, Varint32Result}, ChannelId, Id, + Outcome::{self, Err, Incomplete, Success}, }; const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); @@ -79,7 +81,7 @@ impl State { Some(header) => header, None => { // The header was invalid, return an error. - return ProtocolErr(Header::new_error( + return Err(Header::new_error( ErrorKind::InvalidHeader, UNKNOWN_CHANNEL, UNKNOWN_ID, @@ -97,17 +99,17 @@ impl State { // channel. let channel = match self.channels.get_mut(header.channel().get() as usize) { Some(channel) => channel, - None => return header.return_err(ErrorKind::InvalidChannel), + None => return header.err_outcome(ErrorKind::InvalidChannel), }; match header.kind() { Kind::Request => { if channel.is_at_max_requests() { - return header.return_err(ErrorKind::RequestLimitExceeded); + return header.err_outcome(ErrorKind::RequestLimitExceeded); } if channel.incoming_requests.insert(header.id()) { - return header.return_err(ErrorKind::DuplicateRequest); + return header.err_outcome(ErrorKind::DuplicateRequest); } // At this point, we have a valid request and its ID has been added to our From 3b05c8091bf636a3e6120ee3dcce283a0a89e8c1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 13 May 2023 15:27:15 +0200 Subject: [PATCH 415/735] juliet: Make varint32 parsing use the `Outcome` type as well --- juliet/src/lib.rs | 18 +++++++++++ juliet/src/varint.rs | 73 ++++++++++++++++++++------------------------ 2 files changed, 51 insertions(+), 40 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 481b8ed729..b6bdbf519a 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -87,6 +87,24 @@ pub enum Outcome { Success(T), } +impl Outcome { + /// Unwraps the outcome, similar to [`std::result::Result::unwrap`]. + /// + /// Returns the value of [`Outcome::Success`]. + /// + /// # Panics + /// + /// Will panic if the [`Outcome`] is not [`Outcome::Success`]. + #[inline] + pub fn unwrap(self) -> T { + match self { + Outcome::Incomplete(n) => panic!("called unwrap on incomplete({}) outcome", n), + Outcome::Err(_err) => panic!("called unwrap on error outcome"), + Outcome::Success(value) => value, + } + } +} + /// `try!` for [`Outcome`]. /// /// Will return [`Outcome::Incomplete`] and [`Outcome::Err`] upwards, or unwrap the value found in diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 407b44d90a..0d68fc4b4f 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -5,48 +5,47 @@ use std::num::NonZeroU8; +use crate::Outcome::{self, Err, Incomplete, Success}; + /// The bitmask to separate the data-follows bit from actual value bits. const VARINT_MASK: u8 = 0b0111_1111; -/// The outcome of a Varint32 decoding. -#[derive(Copy, Clone, Debug)] -pub enum Varint32Result { - /// The input provided indicated more bytes are to follow than available. - Incomplete, - /// Parsing stopped because the resulting integer would exceed `u32::MAX`. - Overflow, - /// Parsing was successful. - Valid { - // Note: `offset` is a `NonZero` type to allow niche optimization by the compiler. The - // expected size for this `enum` on 64 bit systems is 8 bytes. - /// The number of bytes consumed by the varint32. - offset: NonZeroU8, - /// The actual parsed value. - value: u32, - }, +/// The only possible error for a varint32 parsing, value overflow. +#[derive(Debug)] +pub struct Overflow; + +/// A successful parse of a varint32. +/// +/// Contains both the decoded value and the bytes consumed. +pub struct ParsedU32 { + /// The number of bytes consumed by the varint32. + // The `NonZeroU8` allows for niche optimization of compound types. + pub offset: NonZeroU8, + /// The actual parsed value. + pub value: u32, } /// Decodes a varint32 from the given input. -pub fn decode_varint32(input: &[u8]) -> Varint32Result { +pub fn decode_varint32(input: &[u8]) -> Outcome { let mut value = 0u32; for (idx, &c) in input.iter().enumerate() { if idx >= 4 && c & 0b1111_0000 != 0 { - return Varint32Result::Overflow; + return Err(Overflow); } value |= ((c & 0b0111_1111) as u32) << (idx * 7); if c & 0b1000_0000 == 0 { - return Varint32Result::Valid { + return Success(ParsedU32 { value, offset: NonZeroU8::new((idx + 1) as u8).unwrap(), - }; + }); } } // We found no stop bit, so our integer is incomplete. - Varint32Result::Incomplete + Incomplete(1) } /// An encoded varint32. @@ -87,9 +86,12 @@ mod tests { use proptest::prelude::{any, prop::collection}; use proptest_attr_macro::proptest; - use crate::varint::{decode_varint32, Varint32Result}; + use crate::{ + varint::{decode_varint32, Overflow}, + Outcome, + }; - use super::Varint32; + use super::{ParsedU32, Varint32}; #[test] fn encode_known_values() { @@ -118,15 +120,9 @@ mod tests { fn check_decode(expected: u32, input: &[u8]) { let decoded = decode_varint32(input); - match decoded { - Varint32Result::Incomplete | Varint32Result::Overflow => { - panic!("unexpected outcome: {:?}", decoded) - } - Varint32Result::Valid { offset, value } => { - assert_eq!(expected, value); - assert_eq!(offset.get() as usize, input.len()); - } - } + let ParsedU32 { offset, value } = decode_varint32(input).unwrap(); + assert_eq!(expected, value); + assert_eq!(offset.get() as usize, input.len()); // Also ensure that all partial outputs yield `Incomplete`. let mut l = input.len(); @@ -135,10 +131,7 @@ mod tests { l -= 1; let partial = &input.as_ref()[0..l]; - assert!(matches!( - decode_varint32(partial), - Varint32Result::Incomplete - )); + assert!(matches!(decode_varint32(partial), Outcome::Incomplete(1))); } } @@ -166,26 +159,26 @@ mod tests { // Value is too long (no more than 5 bytes allowed). assert!(matches!( decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x80, 0x01]), - Varint32Result::Overflow + Outcome::Err(Overflow) )); // This behavior should already trigger on the fifth byte. assert!(matches!( decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x80]), - Varint32Result::Overflow + Outcome::Err(Overflow) )); // Value is too big to be held by a `u32`. assert!(matches!( decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x10]), - Varint32Result::Overflow + Outcome::Err(Overflow) )); } proptest::proptest! { #[test] fn fuzz_varint(data in collection::vec(any::(), 0..256)) { - if let Varint32Result::Valid{ offset, value } = decode_varint32(&data) { + if let Outcome::Success(ParsedU32{ offset, value }) = decode_varint32(&data) { let valid_substring = &data[0..(offset.get() as usize)]; check_decode(value, valid_substring); } From 1bfdad32c9d2567bbb490f8968b3b407871dacef Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 13 May 2023 15:47:27 +0200 Subject: [PATCH 416/735] juliet: Use `NonZeroU32` for remaining bytes --- juliet/src/lib.rs | 8 ++++++-- juliet/src/reader.rs | 5 ++--- juliet/src/varint.rs | 6 +++--- 3 files changed, 11 insertions(+), 8 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index b6bdbf519a..38de8301f3 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,6 +1,10 @@ -use std::fmt::{self, Display}; +use std::{ + fmt::{self, Display}, + num::NonZeroU32, +}; mod header; +pub(crate) mod multiframe; mod reader; pub mod varint; @@ -80,7 +84,7 @@ impl From for u16 { #[must_use] pub enum Outcome { /// The given data was incomplete, at least the given amount of additional bytes is needed. - Incomplete(usize), + Incomplete(NonZeroU32), /// An fatal error was found in the given input. Err(E), /// The parse was successful and the underlying buffer has been modified to extract `T`. diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 7712a6e960..bf67ee5dd5 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,11 +1,10 @@ -use std::collections::HashSet; +use std::{collections::HashSet, num::NonZeroU32}; use bytes::{Buf, Bytes, BytesMut}; use crate::{ header::{ErrorKind, Header, Kind}, multiframe::MultiFrameReader, - varint::{decode_varint32, Varint32Result}, ChannelId, Id, Outcome::{self, Err, Incomplete, Success}, }; @@ -73,7 +72,7 @@ impl State { loop { // We do not have enough data to extract a header, indicate and return. if buffer.len() < Header::SIZE { - return Incomplete(Header::SIZE - buffer.len()); + return Incomplete(NonZeroU32::new((Header::SIZE - buffer.len()) as u32).unwrap()); } let header_raw: [u8; Header::SIZE] = buffer[0..Header::SIZE].try_into().unwrap(); diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 0d68fc4b4f..3d17a2b683 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -3,7 +3,7 @@ //! This module implements the variable length encoding of 32 bit integers, as described in the //! juliet RFC. -use std::num::NonZeroU8; +use std::num::{NonZeroU32, NonZeroU8}; use crate::Outcome::{self, Err, Incomplete, Success}; @@ -45,7 +45,7 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { } // We found no stop bit, so our integer is incomplete. - Incomplete(1) + Incomplete(NonZeroU32::new(1).unwrap()) } /// An encoded varint32. @@ -131,7 +131,7 @@ mod tests { l -= 1; let partial = &input.as_ref()[0..l]; - assert!(matches!(decode_varint32(partial), Outcome::Incomplete(1))); + assert!(matches!(decode_varint32(partial), Outcome::Incomplete(n) if n.get() == 1)); } } From 05361222f07fab884b9cc9567795c455b52f65e7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 13 May 2023 15:47:46 +0200 Subject: [PATCH 417/735] juliet: Fix typo in `try_outcome!` macro --- juliet/src/lib.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 38de8301f3..c9ed2583ba 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -118,7 +118,7 @@ macro_rules! try_outcome { ($src:expr) => { match $src { Outcome::Incomplete(n) => return Outcome::Incomplete(n), - Outcome::Err(err) return Outcome::Err(err.into()), + Outcome::Err(err) => return Outcome::Err(err.into()), Outcome::Success(value) => value, } }; From 6fb12c99b56c64a2b4d6d4e8f3d9a98fc7b80364 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 13 May 2023 15:49:04 +0200 Subject: [PATCH 418/735] juliet: Remove outdated reader code --- juliet/src/lib.rs | 2 +- juliet/src/reader.rs | 70 ++------------------------------------------ 2 files changed, 4 insertions(+), 68 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index c9ed2583ba..8517f058c9 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -5,7 +5,7 @@ use std::{ mod header; pub(crate) mod multiframe; -mod reader; +// mod reader; pub mod varint; /// A channel identifier. diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index bf67ee5dd5..ce86f81286 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -25,13 +25,7 @@ struct Channel { request_limit: u32, max_request_payload_size: u32, max_response_payload_size: u32, - current_request_state: RequestState, -} - -#[derive(Debug)] -enum RequestState { - Ready, - InProgress { header: Header }, + current_request_state: MultiFrameReader, } impl Channel { @@ -51,23 +45,8 @@ enum CompletedRead { NewRequest { id: Id, payload: Option }, } -enum Outcome { - Incomplete(usize), - ProtocolErr(Header), - Success(T), -} - -use Outcome::{Incomplete, ProtocolErr, Success}; - -impl Header { - #[inline] - fn return_err(self, kind: ErrorKind) -> Outcome { - Outcome::ProtocolErr(Header::new_error(kind, self.channel(), self.id())) - } -} - impl State { - fn process_data(&mut self, mut buffer: BytesMut) -> Outcome { + fn process_data(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { // We do not have enough data to extract a header, indicate and return. @@ -121,50 +100,7 @@ impl State { }); } Kind::Response => todo!(), - Kind::RequestPl => match channel.current_request_state { - RequestState::Ready => { - if channel.is_at_max_requests() { - return header.return_err(ErrorKind::RequestLimitExceeded); - } - - if channel.incoming_requests.insert(header.id()) { - return header.return_err(ErrorKind::DuplicateRequest); - } - - let segment_buf = &buffer[0..Header::SIZE]; - - match decode_varint32(segment_buf) { - Varint32Result::Incomplete => return Incomplete(1), - Varint32Result::Overflow => { - return header.return_err(ErrorKind::BadVarInt) - } - Varint32Result::Valid { offset, value } => { - // TODO: Check frame boundary. - - let offset = offset.get() as usize; - let total_size = value as usize; - - let payload_buf = &segment_buf[offset..]; - if payload_buf.len() >= total_size as usize { - // Entire payload is already in segment. We can just remove it - // from the buffer and return. - - buffer.advance(Header::SIZE + offset); - let payload = buffer.split_to(total_size).freeze(); - return Success(CompletedRead::NewRequest { - id: header.id(), - payload: Some(payload), - }); - } - - todo!() // doesn't fit - check if the segment was filled completely. - } - } - } - RequestState::InProgress { header } => { - todo!() - } - }, + Kind::RequestPl => todo!(), Kind::ResponsePl => todo!(), Kind::CancelReq => todo!(), Kind::CancelResp => todo!(), From 8cec19f27b113e9f9cbbba5652832d0493e3385c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 13 May 2023 15:50:19 +0200 Subject: [PATCH 419/735] juliet: Use `with_err` and `map_err` instead of `err_outcome` --- juliet/src/header.rs | 6 +++--- juliet/src/lib.rs | 13 +++++++++++++ 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 63a9fbc5bf..839de3f080 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -231,10 +231,10 @@ impl Header { } } - /// Creates an [`Outcome::ProtocolErr`] with the given kind, and the header's id and channel. + /// Creates a new header with the same id and channel but an error kind. #[inline] - pub(crate) fn err_outcome(self, kind: ErrorKind) -> Outcome { - Outcome::Err(Header::new_error(kind, self.channel(), self.id())) + pub(crate) fn with_err(self, kind: ErrorKind) -> Self { + Header::new_error(kind, self.channel(), self.id()) } } diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 8517f058c9..7a5f7dd4ce 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -107,6 +107,19 @@ impl Outcome { Outcome::Success(value) => value, } } + + /// Maps the error of an [`Outcome`]. + #[inline] + pub fn map_err(self, f: F) -> Outcome + where + F: FnOnce(E) -> E2, + { + match self { + Outcome::Incomplete(n) => Outcome::Incomplete(n), + Outcome::Err(err) => Outcome::Err(f(err)), + Outcome::Success(value) => Outcome::Success(value), + } + } } /// `try!` for [`Outcome`]. From 839c38985966e3c52ce54b17e3ae647acf79b966 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 14 May 2023 13:28:53 +0200 Subject: [PATCH 420/735] juliet: Draft multiframe reading support --- juliet/src/multiframe.rs | 172 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 172 insertions(+) create mode 100644 juliet/src/multiframe.rs diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs new file mode 100644 index 0000000000..3ba6eabcbd --- /dev/null +++ b/juliet/src/multiframe.rs @@ -0,0 +1,172 @@ +use std::num::{NonZeroU32, NonZeroU8}; + +use bytes::{Buf, Bytes, BytesMut}; + +use crate::{ + header::{ErrorKind, Header}, + try_outcome, + varint::{decode_varint32, ParsedU32}, + Outcome::{self, Err, Incomplete, Success}, +}; + +/// A multi-frame message reader. +/// +/// Processes frames into message from a given input stream as laid out in the juliet RFC. +#[derive(Debug)] +pub(crate) enum MultiFrameReader { + Ready, + InProgress { header: Header, payload: BytesMut }, +} + +impl MultiFrameReader { + /// Accept additional data to be written. + /// + /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` + /// past header and payload if and only a successful frame was parsed. + /// + /// Continues parsing until either a complete message is found or additional input is required. + /// Will return the message payload associated with the passed in `header`, if complete. + /// + /// # Panics + /// + /// Panics when compiled with debug settings if `max_frame_size` is less than 10 or `buffer` is + /// shorter than [`Header::SIZE`]. + pub(crate) fn accept( + &mut self, + header: Header, + buffer: &mut BytesMut, + max_frame_size: u32, + ) -> Outcome { + debug_assert!( + max_frame_size >= 10, + "maximum frame size must be enough to hold header and varint" + ); + debug_assert!( + buffer.len() >= Header::SIZE, + "buffer is too small to contain header" + ); + + let segment_buf = &buffer[0..Header::SIZE]; + + match self { + MultiFrameReader::InProgress { + header: pheader, + payload, + } if *pheader == header => { + todo!("this is the case where we are appending to a message") + } + MultiFrameReader::InProgress { .. } | MultiFrameReader::Ready => { + // We have a new segment, which has a variable size. + let ParsedU32 { + offset, + value: total_payload_size, + } = + try_outcome!(decode_varint32(segment_buf) + .map_err(|_| header.with_err(ErrorKind::BadVarInt))); + + // We have a valid varint32. Let's see if we're inside the frame boundary. + let preamble_size = Header::SIZE as u32 + offset.get() as u32; + let max_data_in_frame = (max_frame_size - preamble_size) as u32; + + // Drop header and length. + buffer.advance(preamble_size as usize); + if total_payload_size <= max_data_in_frame { + let payload = buffer.split_to(total_payload_size as usize); + + // No need to alter the state, we stay `Ready`. + return Success(payload); + } + + // The length exceeds the frame boundary, split to maximum and store that. + let partial_payload = buffer.split_to((max_frame_size - preamble_size) as usize); + + *self = MultiFrameReader::InProgress { + header, + payload: partial_payload, + }; + + // TODO: THIS IS WRONG. LOOP READING. AND CONSIDER ACTUAL BUFFER LENGTH + // ABOVE. We need at least a header to proceed further on. + return Incomplete(NonZeroU32::new(Header::SIZE as u32).unwrap()); + + todo!() + } + MultiFrameReader::InProgress { header, payload } => todo!(), + _ => todo!(), + } + } +} + +#[derive(Debug)] +struct SegmentInfo { + total_payload_length: u32, + start: NonZeroU8, + payload_segment_len: u32, +} + +impl SegmentInfo { + fn is_complete(&self) -> bool { + self.total_payload_length == self.payload_segment_len + } +} + +#[derive(Copy, Clone, Debug)] +enum SegmentError { + ExceedsMaxPayloadLength, + BadVarInt, +} + +/// Given a potential segment buffer (which is a frame without the header), finds a start segment. +/// +/// Assumes that the first bytes of the buffer are a [`crate::varint`] encoded length. +fn find_start_segment( + segment_buf: &[u8], + max_payload_length: u32, + max_frame_size: u32, +) -> Outcome { + let ParsedU32 { + offset, + value: total_payload_length, + } = try_outcome!(decode_varint32(segment_buf).map_err(|_| SegmentError::BadVarInt)); + + // Ensure it is within allowed range. + if total_payload_length > max_payload_length { + return Err(SegmentError::ExceedsMaxPayloadLength); + } + + // We have a valid length. Calculate how much space there is in this frame and determine whether or not our payload would fit entirely into the start segment. + let full_payload_size = max_frame_size - (offset.get() as u32 + Header::SIZE as u32); + if total_payload_length <= full_payload_size { + // The entire payload fits into the segment. Check if we have enough. Do all math in 64 bit, + // since we have to assume that `total_payload_length` can be up to [`u32::MAX`]. + + if segment_buf.len() as u64 >= total_payload_length as u64 + offset.get() as u64 { + Success(SegmentInfo { + total_payload_length, + start: offset, + payload_segment_len: total_payload_length, + }) + } else { + // The payload would fit, but we do not have enough data yet. + Incomplete( + NonZeroU32::new( + total_payload_length - segment_buf.len() as u32 + offset.get() as u32, + ) + .unwrap(), + ) + } + } else { + // The entire frame must be filled according to the RFC. + let actual_payload_len = segment_buf.len() - offset.get() as usize; + if actual_payload_len < full_payload_size as usize { + Incomplete(NonZeroU32::new(full_payload_size - actual_payload_len as u32).unwrap()) + } else { + // Frame is full. + Success(SegmentInfo { + total_payload_length, + start: offset, + payload_segment_len: full_payload_size, + }) + } + } +} From 9324a5d3ad6b5fc20202e2248e747244af35b314 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 14 May 2023 13:43:35 +0200 Subject: [PATCH 421/735] juliet: Simplify segment calculation code --- juliet/src/multiframe.rs | 85 ++++++++++++++++++++-------------------- 1 file changed, 42 insertions(+), 43 deletions(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index 3ba6eabcbd..cfe9c5a870 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -97,76 +97,75 @@ impl MultiFrameReader { } } +/// Information about the payload of a starting segment. #[derive(Debug)] -struct SegmentInfo { - total_payload_length: u32, +struct PayloadInfo { + /// Total size of the entire message's payload (across all frames). + message_length: u32, + /// Start of the payload, relative to segment start. start: NonZeroU8, - payload_segment_len: u32, + /// End of the payload, relative to segment start. + end: u32, } -impl SegmentInfo { +impl PayloadInfo { + /// Returns the length of the payload in the segment. + #[inline(always)] + fn len(&self) -> u32 { + self.end - self.start.get() as u32 + } + + /// Returns whether the entire message payload is contained in the starting segment. + #[inline(always)] fn is_complete(&self) -> bool { - self.total_payload_length == self.payload_segment_len + self.message_length == self.len() } } +/// Error parsing starting segment. #[derive(Copy, Clone, Debug)] enum SegmentError { + /// The advertised message payload length exceeds the configured limit. ExceedsMaxPayloadLength, + /// The varint at the beginning could not be parsed. BadVarInt, } /// Given a potential segment buffer (which is a frame without the header), finds a start segment. /// -/// Assumes that the first bytes of the buffer are a [`crate::varint`] encoded length. +/// Assumes that the first bytes of the buffer are a [`crate::varint`] encoded length. Returns the +/// geometry of the segment that was found. fn find_start_segment( segment_buf: &[u8], max_payload_length: u32, max_frame_size: u32, -) -> Outcome { +) -> Outcome { let ParsedU32 { - offset, - value: total_payload_length, + offset: start, + value: message_length, } = try_outcome!(decode_varint32(segment_buf).map_err(|_| SegmentError::BadVarInt)); // Ensure it is within allowed range. - if total_payload_length > max_payload_length { + if message_length > max_payload_length { return Err(SegmentError::ExceedsMaxPayloadLength); } - // We have a valid length. Calculate how much space there is in this frame and determine whether or not our payload would fit entirely into the start segment. - let full_payload_size = max_frame_size - (offset.get() as u32 + Header::SIZE as u32); - if total_payload_length <= full_payload_size { - // The entire payload fits into the segment. Check if we have enough. Do all math in 64 bit, - // since we have to assume that `total_payload_length` can be up to [`u32::MAX`]. - - if segment_buf.len() as u64 >= total_payload_length as u64 + offset.get() as u64 { - Success(SegmentInfo { - total_payload_length, - start: offset, - payload_segment_len: total_payload_length, - }) - } else { - // The payload would fit, but we do not have enough data yet. - Incomplete( - NonZeroU32::new( - total_payload_length - segment_buf.len() as u32 + offset.get() as u32, - ) - .unwrap(), - ) - } + // Determine the largest payload that can still fit into this frame. + let full_payload_size = max_frame_size - (start.get() as u32 + Header::SIZE as u32); + + // Calculate start and end of payload in this frame, the latter capped by the frame itself. + let end = start.get() as u32 + full_payload_size.min(message_length); + + // Determine if segment is complete. + if end as usize > segment_buf.len() { + let missing = segment_buf.len() - end as usize; + // Note: Missing is guaranteed to be <= `u32::MAX` here. + Incomplete(NonZeroU32::new(missing as u32).unwrap()) } else { - // The entire frame must be filled according to the RFC. - let actual_payload_len = segment_buf.len() - offset.get() as usize; - if actual_payload_len < full_payload_size as usize { - Incomplete(NonZeroU32::new(full_payload_size - actual_payload_len as u32).unwrap()) - } else { - // Frame is full. - Success(SegmentInfo { - total_payload_length, - start: offset, - payload_segment_len: full_payload_size, - }) - } + Success(PayloadInfo { + message_length, + start, + end, + }) } } From ae09859ae35d212d3e565cbb7ce29e2f5f6e3bcd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 14 May 2023 15:49:08 +0200 Subject: [PATCH 422/735] juliet: Complete core multi-frame logic --- juliet/src/multiframe.rs | 126 ++++++++++++++++++++++++++------------- 1 file changed, 83 insertions(+), 43 deletions(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index cfe9c5a870..c156493f83 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -1,6 +1,9 @@ -use std::num::{NonZeroU32, NonZeroU8}; +use std::{ + mem, + num::{NonZeroU32, NonZeroU8}, +}; -use bytes::{Buf, Bytes, BytesMut}; +use bytes::{Buf, BytesMut}; use crate::{ header::{ErrorKind, Header}, @@ -15,28 +18,33 @@ use crate::{ #[derive(Debug)] pub(crate) enum MultiFrameReader { Ready, - InProgress { header: Header, payload: BytesMut }, + InProgress { + header: Header, + msg_payload: BytesMut, + msg_len: u32, + }, } impl MultiFrameReader { - /// Accept additional data to be written. + /// Process a single frame from a buffer. /// /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` /// past header and payload if and only a successful frame was parsed. /// - /// Continues parsing until either a complete message is found or additional input is required. - /// Will return the message payload associated with the passed in `header`, if complete. + /// Returns a completed message payload, or `None` if a frame was consumed, but no message + /// completed yet. /// /// # Panics /// /// Panics when compiled with debug settings if `max_frame_size` is less than 10 or `buffer` is /// shorter than [`Header::SIZE`]. - pub(crate) fn accept( + pub(crate) fn process_frame( &mut self, header: Header, buffer: &mut BytesMut, + max_payload_length: u32, max_frame_size: u32, - ) -> Outcome { + ) -> Outcome, Header> { debug_assert!( max_frame_size >= 10, "maximum frame size must be enough to hold header and varint" @@ -48,51 +56,74 @@ impl MultiFrameReader { let segment_buf = &buffer[0..Header::SIZE]; + // Check if we got a continuation of a message send already in progress. match self { MultiFrameReader::InProgress { header: pheader, - payload, + msg_payload, + msg_len, } if *pheader == header => { - todo!("this is the case where we are appending to a message") - } - MultiFrameReader::InProgress { .. } | MultiFrameReader::Ready => { - // We have a new segment, which has a variable size. - let ParsedU32 { - offset, - value: total_payload_size, - } = - try_outcome!(decode_varint32(segment_buf) - .map_err(|_| header.with_err(ErrorKind::BadVarInt))); - - // We have a valid varint32. Let's see if we're inside the frame boundary. - let preamble_size = Header::SIZE as u32 + offset.get() as u32; - let max_data_in_frame = (max_frame_size - preamble_size) as u32; - - // Drop header and length. - buffer.advance(preamble_size as usize); - if total_payload_size <= max_data_in_frame { - let payload = buffer.split_to(total_payload_size as usize); - - // No need to alter the state, we stay `Ready`. - return Success(payload); + let max_frame_payload = max_frame_size - Header::SIZE as u32; + let remaining = (*msg_len - msg_payload.len() as u32).min(max_frame_payload); + + // If we don't have enough data yet, return number of bytes missing. + let end = (remaining as u64 + Header::SIZE as u64); + if buffer.len() < end as usize { + return Incomplete( + NonZeroU32::new((end - buffer.len() as u64) as u32).unwrap(), + ); } - // The length exceeds the frame boundary, split to maximum and store that. - let partial_payload = buffer.split_to((max_frame_size - preamble_size) as usize); + // Otherwise, we're good to append to the payload. + msg_payload.extend_from_slice(&buffer[Header::SIZE..(end as usize)]); + msg_payload.advance(end as usize); + + return Success(if remaining < max_frame_payload { + let rv = mem::take(msg_payload); + *self = MultiFrameReader::Ready; + Some(rv) + } else { + None + }); + } + _ => (), + } - *self = MultiFrameReader::InProgress { - header, - payload: partial_payload, - }; + // At this point we have to expect a starting segment. + let payload_info = + try_outcome!( + find_start_segment(segment_buf, max_payload_length, max_frame_size) + .map_err(|err| err.into_header()) + ); - // TODO: THIS IS WRONG. LOOP READING. AND CONSIDER ACTUAL BUFFER LENGTH - // ABOVE. We need at least a header to proceed further on. - return Incomplete(NonZeroU32::new(Header::SIZE as u32).unwrap()); + // Discard the header and length, then split off the payload. + buffer.advance(Header::SIZE + payload_info.start.get() as usize); + let segment_payload = buffer.split_to(payload_info.len() as usize); - todo!() + // We can finally determine our outcome. + match self { + MultiFrameReader::InProgress { .. } => { + if !payload_info.is_complete() { + Err(header.with_err(ErrorKind::InProgress)) + } else { + Success(Some(segment_payload)) + } + } + MultiFrameReader::Ready => { + if !payload_info.is_complete() { + // Begin a new multi-frame read. + *self = MultiFrameReader::InProgress { + header, + msg_payload: segment_payload, + msg_len: payload_info.message_length, + }; + // The next minimum read is another header. + Incomplete(NonZeroU32::new(Header::SIZE as u32).unwrap()) + } else { + // The entire message is contained, no need to change state. + Success(Some(segment_payload)) + } } - MultiFrameReader::InProgress { header, payload } => todo!(), - _ => todo!(), } } } @@ -131,6 +162,15 @@ enum SegmentError { BadVarInt, } +impl SegmentError { + fn into_header(self) -> Header { + match self { + SegmentError::ExceedsMaxPayloadLength => todo!(), + SegmentError::BadVarInt => todo!(), + } + } +} + /// Given a potential segment buffer (which is a frame without the header), finds a start segment. /// /// Assumes that the first bytes of the buffer are a [`crate::varint`] encoded length. Returns the From d7f55cd7425ac784b292d5e456e694d032349739 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 14 May 2023 16:49:12 +0200 Subject: [PATCH 423/735] juliet: Fix obvious bugs in `MultiFrameReader` --- juliet/src/multiframe.rs | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index c156493f83..a099a54c42 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -28,8 +28,8 @@ pub(crate) enum MultiFrameReader { impl MultiFrameReader { /// Process a single frame from a buffer. /// - /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` - /// past header and payload if and only a successful frame was parsed. + /// Assumes that `header` was the first [`Header::SIZE`] preceding `buffer`. Will advance + /// `buffer` past header and payload if and only a successful frame was parsed. /// /// Returns a completed message payload, or `None` if a frame was consumed, but no message /// completed yet. @@ -54,8 +54,6 @@ impl MultiFrameReader { "buffer is too small to contain header" ); - let segment_buf = &buffer[0..Header::SIZE]; - // Check if we got a continuation of a message send already in progress. match self { MultiFrameReader::InProgress { @@ -90,11 +88,12 @@ impl MultiFrameReader { } // At this point we have to expect a starting segment. - let payload_info = - try_outcome!( - find_start_segment(segment_buf, max_payload_length, max_frame_size) - .map_err(|err| err.into_header()) - ); + let payload_info = try_outcome!(find_start_segment( + &buffer[Header::SIZE..], + max_payload_length, + max_frame_size + ) + .map_err(|err| err.into_header())); // Discard the header and length, then split off the payload. buffer.advance(Header::SIZE + payload_info.start.get() as usize); From 06237e2f43dae044cfb240add52d7ed210d7f789 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 15 May 2023 10:23:49 +0200 Subject: [PATCH 424/735] juliet: Add first set of tests for multi frame reader --- juliet/src/header.rs | 6 +++ juliet/src/multiframe.rs | 105 +++++++++++++++++++++++++++++++++++++-- 2 files changed, 107 insertions(+), 4 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 839de3f080..bc31f090c9 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -244,6 +244,12 @@ impl From
for [u8; Header::SIZE] { } } +impl AsRef<[u8; Header::SIZE]> for Header { + fn as_ref(&self) -> &[u8; Header::SIZE] { + &self.0 + } +} + #[cfg(test)] mod tests { use proptest::{ diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index a099a54c42..ab5667f790 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -1,5 +1,5 @@ use std::{ - mem, + default, mem, num::{NonZeroU32, NonZeroU8}, }; @@ -15,8 +15,9 @@ use crate::{ /// A multi-frame message reader. /// /// Processes frames into message from a given input stream as laid out in the juliet RFC. -#[derive(Debug)] +#[derive(Debug, Default)] pub(crate) enum MultiFrameReader { + #[default] Ready, InProgress { header: Header, @@ -36,7 +37,7 @@ impl MultiFrameReader { /// /// # Panics /// - /// Panics when compiled with debug settings if `max_frame_size` is less than 10 or `buffer` is + /// Panics when compiled with debug profiles if `max_frame_size` is less than 10 or `buffer` is /// shorter than [`Header::SIZE`]. pub(crate) fn process_frame( &mut self, @@ -76,7 +77,7 @@ impl MultiFrameReader { msg_payload.extend_from_slice(&buffer[Header::SIZE..(end as usize)]); msg_payload.advance(end as usize); - return Success(if remaining < max_frame_payload { + return Success(if remaining <= max_frame_payload { let rv = mem::take(msg_payload); *self = MultiFrameReader::Ready; Some(rv) @@ -208,3 +209,99 @@ fn find_start_segment( }) } } + +#[cfg(test)] +mod tests { + use std::io::Write; + + use bytes::{BufMut, BytesMut}; + use proptest::{collection::vec, prelude::any, proptest}; + + use crate::{ + header::{Header, Kind::RequestPl}, + varint::Varint32, + ChannelId, Id, + }; + + use super::MultiFrameReader; + + const MAX_FRAME_SIZE: usize = 500; + const FRAME_MAX_PAYLOAD: usize = 500 - Header::SIZE - 2; + + proptest! { + #[test] + fn single_frame_message(payload in vec(any::(), FRAME_MAX_PAYLOAD), garbage in vec(any::(), 10)) { + do_single_frame_messages(payload, garbage); + } + } + + fn do_single_frame_messages(payload: Vec, garbage: Vec) { + let buffer = BytesMut::new(); + let mut writer = buffer.writer(); + + let chan = ChannelId::new(2); + let id = Id::new(12345); + + let header = Header::new(RequestPl, chan, id); + + // Manually prepare a suitable message buffer. + writer.write_all(header.as_ref()).unwrap(); + writer + .write_all(Varint32::encode(payload.len() as u32).as_ref()) + .unwrap(); + writer.write_all(&payload).unwrap(); + + let buffer = writer.into_inner(); + // Sanity check constraints. + if payload.len() == FRAME_MAX_PAYLOAD { + assert_eq!(buffer.len(), MAX_FRAME_SIZE); + } + let mut writer = buffer.writer(); + + // Append some random garbage. + writer.write_all(&garbage).unwrap(); + + // Buffer is now ready to read. + let mut buffer = writer.into_inner(); + + // Now we can finally attempt to read it. + let mut state = MultiFrameReader::default(); + let output = state + .process_frame( + header, + &mut buffer, + FRAME_MAX_PAYLOAD as u32, + MAX_FRAME_SIZE as u32, + ) + // .expect("failed to read using multi frame reader, expected complete single frame") + .unwrap() + .expect("did not expect state of single frame to return `None`"); + + assert_eq!(output, payload); + } + + #[test] + fn allows_interspersed_messages() { + todo!() + } + + #[test] + fn forbids_exceeding_maximum_message_size() { + todo!() + } + + #[test] + fn bad_varint_causes_error() { + todo!() + } + + #[test] + fn varying_message_sizes() { + todo!("proptest") + } + + #[test] + fn fuzz_multi_frame_reader() { + todo!() + } +} From d4d2f96010bf8700b0d2f685373b77a4479634d2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 15 May 2023 10:43:41 +0200 Subject: [PATCH 425/735] juliet: Add `.expect()` method for `Outcome` --- juliet/src/lib.rs | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 7a5f7dd4ce..a36519b592 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -92,18 +92,16 @@ pub enum Outcome { } impl Outcome { - /// Unwraps the outcome, similar to [`std::result::Result::unwrap`]. + /// Expects the outcome, similar to [`std::result::Result::unwrap`]. /// /// Returns the value of [`Outcome::Success`]. /// /// # Panics /// /// Will panic if the [`Outcome`] is not [`Outcome::Success`]. - #[inline] - pub fn unwrap(self) -> T { + pub fn expect(self, msg: &str) -> T { match self { - Outcome::Incomplete(n) => panic!("called unwrap on incomplete({}) outcome", n), - Outcome::Err(_err) => panic!("called unwrap on error outcome"), + _ => panic!("{}", msg), Outcome::Success(value) => value, } } @@ -120,6 +118,22 @@ impl Outcome { Outcome::Success(value) => Outcome::Success(value), } } + + /// Unwraps the outcome, similar to [`std::result::Result::unwrap`]. + /// + /// Returns the value of [`Outcome::Success`]. + /// + /// # Panics + /// + /// Will panic if the [`Outcome`] is not [`Outcome::Success`]. + #[inline] + pub fn unwrap(self) -> T { + match self { + Outcome::Incomplete(n) => panic!("called unwrap on incomplete({}) outcome", n), + Outcome::Err(_err) => panic!("called unwrap on error outcome"), + Outcome::Success(value) => value, + } + } } /// `try!` for [`Outcome`]. From 7c199f741f0ceb5e3f48d871f1a419e23983ded4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 15 May 2023 11:41:40 +0200 Subject: [PATCH 426/735] juliet: Make `len` available on `Varint32` and make encoding a `const fn` --- juliet/src/varint.rs | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 3d17a2b683..0487ddcbda 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -52,11 +52,12 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { /// /// Internally these are stored as six byte arrays to make passing around convenient. #[repr(transparent)] +#[derive(Copy, Clone, Debug)] pub struct Varint32([u8; 6]); impl Varint32 { /// Encode a 32-bit integer to variable length. - pub fn encode(mut value: u32) -> Self { + pub const fn encode(mut value: u32) -> Self { let mut output = [0u8; 6]; let mut count = 0; @@ -72,12 +73,16 @@ impl Varint32 { output[5] = count as u8; Varint32(output) } + + /// Returns the number of bytes in the encoded varint. + pub const fn len(self) -> usize { + self.0[5] as usize + 1 + } } impl AsRef<[u8]> for Varint32 { fn as_ref(&self) -> &[u8] { - let len = self.0[5] as usize + 1; - &self.0[0..len] + &self.0[0..self.len()] } } @@ -118,8 +123,6 @@ mod tests { #[track_caller] fn check_decode(expected: u32, input: &[u8]) { - let decoded = decode_varint32(input); - let ParsedU32 { offset, value } = decode_varint32(input).unwrap(); assert_eq!(expected, value); assert_eq!(offset.get() as usize, input.len()); @@ -151,6 +154,7 @@ mod tests { #[proptest] fn roundtrip_value(value: u32) { let encoded = Varint32::encode(value); + assert_eq!(encoded.len(), encoded.as_ref().len()); check_decode(value, encoded.as_ref()); } From 89c6bee61782a9d78e6fcfbf87a81e642faae678 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 15 May 2023 15:47:42 +0200 Subject: [PATCH 427/735] juliet: Add tests for `find_start_segment` and fix resulting bugs --- juliet/src/multiframe.rs | 109 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 101 insertions(+), 8 deletions(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index ab5667f790..029d152491 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -198,7 +198,8 @@ fn find_start_segment( // Determine if segment is complete. if end as usize > segment_buf.len() { - let missing = segment_buf.len() - end as usize; + let missing = end as usize - segment_buf.len(); + // Note: Missing is guaranteed to be <= `u32::MAX` here. Incomplete(NonZeroU32::new(missing as u32).unwrap()) } else { @@ -212,21 +213,26 @@ fn find_start_segment( #[cfg(test)] mod tests { - use std::io::Write; + use std::{io::Write, num::NonZeroU32}; - use bytes::{BufMut, BytesMut}; + use bytes::{Buf, BufMut, BytesMut}; use proptest::{collection::vec, prelude::any, proptest}; use crate::{ - header::{Header, Kind::RequestPl}, + header::{ + Header, + Kind::{self, RequestPl}, + }, + multiframe::PayloadInfo, varint::Varint32, - ChannelId, Id, + ChannelId, Id, Outcome, }; - use super::MultiFrameReader; + use super::{find_start_segment, MultiFrameReader}; - const MAX_FRAME_SIZE: usize = 500; - const FRAME_MAX_PAYLOAD: usize = 500 - Header::SIZE - 2; + const FRAME_MAX_PAYLOAD: usize = 500; + const MAX_FRAME_SIZE: usize = + FRAME_MAX_PAYLOAD + Header::SIZE + Varint32::encode(FRAME_MAX_PAYLOAD as u32).len(); proptest! { #[test] @@ -235,6 +241,93 @@ mod tests { } } + #[test] + fn find_start_segment_simple_cases() { + // Empty case should return 1. + assert!(matches!( + find_start_segment(&[], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Incomplete(n) if n.get() == 1 + )); + + // With a length 0, we should get a result after 1 byte. + assert!(matches!( + find_start_segment(&[0x00], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Success(PayloadInfo { + message_length: 0, + start, + end: 1 + }) if start.get() == 1 + )); + + // Additional byte should return the correct amount of extra required bytes. + assert!(matches!( + find_start_segment(&[0x7], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Incomplete(n) if n.get() == 7 + )); + assert!(matches!( + find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Incomplete(n) if n.get() == 4 + )); + assert!(matches!( + find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Incomplete(n) if n.get() == 1 + )); + assert!(matches!( + find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Success(PayloadInfo { + message_length: 7, + start, + end: 8 + }) if start.get() == 1 + )); + + // We can also check if additional data is ignored properly. + assert!(matches!( + find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xEE], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Success(PayloadInfo { + message_length: 7, + start, + end: 8 + }) if start.get() == 1 + )); + assert!(matches!( + find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xEE, 0xEE, 0xEE, + 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Success(PayloadInfo { + message_length: 7, + start, + end: 8 + }) if start.get() == 1 + )); + + // Finally, try with larger value (that doesn't fit into length encoding of 1). + // 0x83 0x01 == 0b1000_0011 = 131. + let mut buf = vec![0x83, 0x01, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE]; + + assert!(matches!( + find_start_segment(&buf, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Incomplete(n) if n.get() == 126 + )); + buf.extend(vec![0xFF; 126]); + assert!(matches!( + find_start_segment(&buf, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Success(PayloadInfo { + message_length: 131, + start, + end: 133 + }) if start.get() == 2 + )); + buf.extend(vec![0x77; 999]); + assert!(matches!( + find_start_segment(&buf, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Success(PayloadInfo { + message_length: 131, + start, + end: 133 + }) if start.get() == 2 + )); + } + fn do_single_frame_messages(payload: Vec, garbage: Vec) { let buffer = BytesMut::new(); let mut writer = buffer.writer(); From b119759432ac51aa85f3469c0adc89b3b938806b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 16 May 2023 11:53:24 +0200 Subject: [PATCH 428/735] juliet: Add tests for `find_start_segment` errors --- juliet/src/multiframe.rs | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index 029d152491..127f3288ad 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -223,7 +223,7 @@ mod tests { Header, Kind::{self, RequestPl}, }, - multiframe::PayloadInfo, + multiframe::{PayloadInfo, SegmentError}, varint::Varint32, ChannelId, Id, Outcome, }; @@ -328,6 +328,28 @@ mod tests { )); } + #[test] + fn find_start_segment_errors() { + let bad_varint = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF]; + assert!(matches!( + find_start_segment(&bad_varint, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), + Outcome::Err(SegmentError::BadVarInt) + )); + + // We expect the size error to be reported immediately, not after parsing the frame. + let exceeds_size = [0x09]; + assert!(matches!( + find_start_segment(&exceeds_size, 8, MAX_FRAME_SIZE as u32), + Outcome::Err(SegmentError::ExceedsMaxPayloadLength) + )); + // This should happen regardless of the maximum frame being larger or smaller than the + // maximum payload. + assert!(matches!( + find_start_segment(&exceeds_size, 8, 4), + Outcome::Err(SegmentError::ExceedsMaxPayloadLength) + )); + } + fn do_single_frame_messages(payload: Vec, garbage: Vec) { let buffer = BytesMut::new(); let mut writer = buffer.writer(); From a8920141cb0e731dd46729d3c3549bf18dd1ffc1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 16 May 2023 12:30:38 +0200 Subject: [PATCH 429/735] juliet: Add tests for `PayloadInfo` --- juliet/src/multiframe.rs | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index 127f3288ad..136ebb4cfa 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -213,7 +213,10 @@ fn find_start_segment( #[cfg(test)] mod tests { - use std::{io::Write, num::NonZeroU32}; + use std::{ + io::Write, + num::{NonZeroU32, NonZeroU8}, + }; use bytes::{Buf, BufMut, BytesMut}; use proptest::{collection::vec, prelude::any, proptest}; @@ -241,6 +244,36 @@ mod tests { } } + #[test] + fn payload_info_math() { + let info = PayloadInfo { + message_length: 0, + start: NonZeroU8::new(5).unwrap(), + end: 5, + }; + + assert_eq!(info.len(), 0); + assert!(info.is_complete()); + + let info = PayloadInfo { + message_length: 10, + start: NonZeroU8::new(5).unwrap(), + end: 15, + }; + + assert_eq!(info.len(), 10); + assert!(info.is_complete()); + + let info = PayloadInfo { + message_length: 100_000, + start: NonZeroU8::new(2).unwrap(), + end: 10, + }; + + assert_eq!(info.len(), 8); + assert!(!info.is_complete()); + } + #[test] fn find_start_segment_simple_cases() { // Empty case should return 1. From 27a189c066871c2831802ea43933c4c90beb4dd7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 17 May 2023 16:56:10 +0200 Subject: [PATCH 430/735] juliet: Fix pattern matching bug in `Outcome::expect` --- juliet/src/lib.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index a36519b592..557ac33cac 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -99,10 +99,12 @@ impl Outcome { /// # Panics /// /// Will panic if the [`Outcome`] is not [`Outcome::Success`]. + #[inline] + #[track_caller] pub fn expect(self, msg: &str) -> T { match self { - _ => panic!("{}", msg), Outcome::Success(value) => value, + Outcome::Incomplete(_) | Outcome::Err(_) => panic!("{}", msg), } } @@ -127,6 +129,7 @@ impl Outcome { /// /// Will panic if the [`Outcome`] is not [`Outcome::Success`]. #[inline] + #[track_caller] pub fn unwrap(self) -> T { match self { Outcome::Incomplete(n) => panic!("called unwrap on incomplete({}) outcome", n), From 1677c9a265be5aec96ebf95cc36224fe2b82b544 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 17 May 2023 16:57:41 +0200 Subject: [PATCH 431/735] juliet: Test single frame message parsing with a simple example --- juliet/src/multiframe.rs | 119 ++++++++++++++++++++++++++++++++------- 1 file changed, 100 insertions(+), 19 deletions(-) diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs index 136ebb4cfa..421885dfc5 100644 --- a/juliet/src/multiframe.rs +++ b/juliet/src/multiframe.rs @@ -383,6 +383,13 @@ mod tests { )); } + #[test] + fn single_frame_message_simple_example() { + let mut payload = Vec::new(); + payload.extend([0xAA, 0xBB, 0xCC, 0xDD, 0xEE]); + do_single_frame_messages(payload, vec![]); + } + fn do_single_frame_messages(payload: Vec, garbage: Vec) { let buffer = BytesMut::new(); let mut writer = buffer.writer(); @@ -393,10 +400,9 @@ mod tests { let header = Header::new(RequestPl, chan, id); // Manually prepare a suitable message buffer. + let payload_varint = Varint32::encode(payload.len() as u32); writer.write_all(header.as_ref()).unwrap(); - writer - .write_all(Varint32::encode(payload.len() as u32).as_ref()) - .unwrap(); + writer.write_all(payload_varint.as_ref()).unwrap(); writer.write_all(&payload).unwrap(); let buffer = writer.into_inner(); @@ -410,26 +416,96 @@ mod tests { writer.write_all(&garbage).unwrap(); // Buffer is now ready to read. - let mut buffer = writer.into_inner(); - - // Now we can finally attempt to read it. - let mut state = MultiFrameReader::default(); - let output = state - .process_frame( - header, - &mut buffer, - FRAME_MAX_PAYLOAD as u32, - MAX_FRAME_SIZE as u32, - ) - // .expect("failed to read using multi frame reader, expected complete single frame") - .unwrap() - .expect("did not expect state of single frame to return `None`"); - - assert_eq!(output, payload); + let buffer = writer.into_inner().freeze(); + + // We run this test for every possible read increment up to the entire buffer length. + for bytes_per_read in 4..=buffer.len() { + let mut source = buffer.clone(); + let mut buffer = BytesMut::new(); + let mut state = MultiFrameReader::default(); + + while source.has_remaining() { + // Determine how much we can read (cannot go past source buffer). + let bytes_to_read = bytes_per_read.min(source.remaining()); + assert!(bytes_to_read > 0); + + let chunk = source.copy_to_bytes(bytes_to_read); + buffer.extend_from_slice(&chunk); + + // Calculate how much data we are still expecting to be reported missing. + let missing = + Header::SIZE as isize + payload_varint.len() as isize + payload.len() as isize + - buffer.len() as isize; + + // Preserve the buffer length, so we can check whether it remains unchanged later. + let buffer_length = buffer.remaining(); + + // Having not read the entire header, we are not supposed to call the parser yet. + if buffer.remaining() < Header::SIZE { + continue; + } + + let outcome = state.process_frame( + header, + &mut buffer, + FRAME_MAX_PAYLOAD as u32, + MAX_FRAME_SIZE as u32, + ); + + // Check if our assumptions were true. + if missing <= 0 { + // We should have a complete frame. + let received = outcome + .expect("expected complete message after finally reading enough bytes") + .expect("did not expect in-progress result once message was complete"); + + assert_eq!(received, payload); + + // Check the correct amount of data was removed. + assert_eq!( + buffer.remaining() as isize, + garbage.len() as isize + missing + ); + + // TODO: Check remainder is exactly garbage. + break; + } else { + // Read was incomplete. If we were not past the header and length varint, the + // expected next read is one bytes (indeterminate), otherwise the remainder. + if let Outcome::Incomplete(n) = outcome { + let expected_incomplete = + if buffer.remaining() >= Header::SIZE + payload_varint.len() { + n.get() as isize + } else { + 1 + }; + assert_eq!(expected_incomplete, n.get() as isize); + } else { + panic!("expected incomplete outcome, got {:?}", outcome) + } + + // Ensure no data is consumed unless a complete frame is read. + assert_eq!(buffer_length, buffer.remaining()); + } + } + } } #[test] fn allows_interspersed_messages() { + #[derive(Debug)] + struct TestPayload(Vec); + + #[derive(Debug)] + enum TestMessage { + Request { id: u16 }, + Response { id: u16 }, + RequestWithPayload { id: u16, payload: TestPayload }, + ResponseWithPayload { id: u16, payload: TestPayload }, + RequestCancellation { id: u16 }, + ResponseCancellation { id: u16 }, + } + todo!() } @@ -443,6 +519,11 @@ mod tests { todo!() } + #[test] + fn invalid_channel_causes_error() { + todo!() + } + #[test] fn varying_message_sizes() { todo!("proptest") From c66652be1e5f14404d1cc2dd7c63ac73a15858b4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 12 May 2023 18:08:27 +0200 Subject: [PATCH 432/735] Ensure test value never deserializes in keys test. --- .../src/storage/trie_store/operations/mod.rs | 16 ++++-- .../operations/tests/bytesrepr_utils.rs | 37 +++++++++++++ .../trie_store/operations/tests/keys.rs | 53 +++++++++++-------- .../trie_store/operations/tests/mod.rs | 1 + 4 files changed, 81 insertions(+), 26 deletions(-) create mode 100644 execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 6201aeeb4e..8756aacece 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -1078,7 +1078,10 @@ where return Some(Err(e.into())); } }; - debug_assert!(key_bytes.starts_with(&path)); + debug_assert!( + key_bytes.starts_with(&path), + "Expected key bytes to start with the current path" + ); // only return the leaf if it matches the initial descend path path.extend(&self.initial_descend); if key_bytes.starts_with(&path) { @@ -1104,7 +1107,10 @@ where return Some(Err(e)); } }; - debug_assert!(maybe_next_trie.is_some()); + debug_assert!( + maybe_next_trie.is_some(), + "Trie at the pointer is expected to exist" + ); if self.initial_descend.pop_front().is_none() { self.visited.push(VisitedTrieNode { trie, @@ -1142,7 +1148,11 @@ where return Some(Err(e)); } }; - debug_assert!({ matches!(&maybe_next_trie, Some(Trie::Node { .. })) }); + debug_assert!( + { matches!(&maybe_next_trie, Some(Trie::Node { .. })) }, + "Expected a Trie::Node but received {:?}", + maybe_next_trie + ); path.extend(affix); } } diff --git a/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs b/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs new file mode 100644 index 0000000000..5300a1ac47 --- /dev/null +++ b/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs @@ -0,0 +1,37 @@ +use casper_types::bytesrepr::{self, FromBytes, ToBytes}; + +#[derive(PartialEq, Eq, Debug, Clone)] +pub(crate) struct PanickingFromBytes(T); + +impl FromBytes for PanickingFromBytes +where + T: FromBytes, +{ + fn from_bytes(_: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> { + unreachable!("This type is expected to never deserialize."); + } +} + +impl ToBytes for PanickingFromBytes +where + T: ToBytes, +{ + fn into_bytes(self) -> Result, bytesrepr::Error> + where + Self: Sized, + { + self.0.into_bytes() + } + + fn write_bytes(&self, writer: &mut Vec) -> Result<(), bytesrepr::Error> { + self.0.write_bytes(writer) + } + + fn to_bytes(&self) -> Result, bytesrepr::Error> { + self.0.to_bytes() + } + + fn serialized_length(&self) -> usize { + self.0.serialized_length() + } +} diff --git a/execution_engine/src/storage/trie_store/operations/tests/keys.rs b/execution_engine/src/storage/trie_store/operations/tests/keys.rs index 32aa55dee7..5ea089762c 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/keys.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/keys.rs @@ -1,4 +1,5 @@ mod partial_tries { + use crate::{ shared::newtypes::CorrelationId, storage::{ @@ -7,8 +8,8 @@ mod partial_tries { trie_store::operations::{ self, tests::{ - InMemoryTestContext, LmdbTestContext, TestKey, TestValue, TEST_LEAVES, - TEST_TRIE_GENERATORS, + bytesrepr_utils::PanickingFromBytes, InMemoryTestContext, LmdbTestContext, + TestKey, TestValue, TEST_LEAVES, TEST_TRIE_GENERATORS, }, }, }, @@ -34,7 +35,7 @@ mod partial_tries { }; let actual = { let txn = context.environment.create_read_txn().unwrap(); - let mut tmp = operations::keys::( + let mut tmp = operations::keys::, _, _>( correlation_id, &txn, &context.store, @@ -70,7 +71,7 @@ mod partial_tries { }; let actual = { let txn = context.environment.create_read_txn().unwrap(); - let mut tmp = operations::keys::( + let mut tmp = operations::keys::, _, _>( correlation_id, &txn, &context.store, @@ -88,6 +89,7 @@ mod partial_tries { } mod full_tries { + use casper_hashing::Digest; use crate::{ @@ -98,8 +100,8 @@ mod full_tries { trie_store::operations::{ self, tests::{ - InMemoryTestContext, TestKey, TestValue, EMPTY_HASHED_TEST_TRIES, TEST_LEAVES, - TEST_TRIE_GENERATORS, + bytesrepr_utils::PanickingFromBytes, InMemoryTestContext, TestKey, TestValue, + EMPTY_HASHED_TEST_TRIES, TEST_LEAVES, TEST_TRIE_GENERATORS, }, }, }, @@ -131,7 +133,7 @@ mod full_tries { }; let actual = { let txn = context.environment.create_read_txn().unwrap(); - let mut tmp = operations::keys::( + let mut tmp = operations::keys::, _, _>( correlation_id, &txn, &context.store, @@ -162,8 +164,8 @@ mod keys_iterator { trie_store::operations::{ self, tests::{ - hash_test_tries, HashedTestTrie, HashedTrie, InMemoryTestContext, TestKey, - TestValue, TEST_LEAVES, + bytesrepr_utils::PanickingFromBytes, hash_test_tries, HashedTestTrie, + HashedTrie, InMemoryTestContext, TestKey, TestValue, TEST_LEAVES, }, }, }, @@ -221,7 +223,7 @@ mod keys_iterator { let correlation_id = CorrelationId::new(); let context = return_on_err!(InMemoryTestContext::new(&tries)); let txn = return_on_err!(context.environment.create_read_txn()); - let _tmp = operations::keys::( + let _tmp = operations::keys::, _, _>( correlation_id, &txn, &context.store, @@ -231,21 +233,21 @@ mod keys_iterator { } #[test] - #[should_panic] + #[should_panic = "Expected a Trie::Node but received"] fn should_panic_on_leaf_after_extension() { let (root_hash, tries) = return_on_err!(create_invalid_extension_trie()); test_trie(root_hash, tries); } #[test] - #[should_panic] + #[should_panic = "Expected key bytes to start with the current path"] fn should_panic_when_key_not_matching_path() { let (root_hash, tries) = return_on_err!(create_invalid_path_trie()); test_trie(root_hash, tries); } #[test] - #[should_panic] + #[should_panic = "Trie at the pointer is expected to exist"] fn should_panic_on_pointer_to_nonexisting_hash() { let (root_hash, tries) = return_on_err!(create_invalid_hash_trie()); test_trie(root_hash, tries); @@ -253,6 +255,7 @@ mod keys_iterator { } mod keys_with_prefix_iterator { + use crate::{ shared::newtypes::CorrelationId, storage::{ @@ -260,7 +263,10 @@ mod keys_with_prefix_iterator { trie::Trie, trie_store::operations::{ self, - tests::{create_6_leaf_trie, InMemoryTestContext, TestKey, TestValue, TEST_LEAVES}, + tests::{ + bytesrepr_utils::PanickingFromBytes, create_6_leaf_trie, InMemoryTestContext, + TestKey, TestValue, TEST_LEAVES, + }, }, }, }; @@ -285,15 +291,16 @@ mod keys_with_prefix_iterator { .create_read_txn() .expect("should create a read txn"); let expected = expected_keys(prefix); - let mut actual = operations::keys_with_prefix::( - correlation_id, - &txn, - &context.store, - &root_hash, - prefix, - ) - .filter_map(Result::ok) - .collect::>(); + let mut actual = + operations::keys_with_prefix::, _, _>( + correlation_id, + &txn, + &context.store, + &root_hash, + prefix, + ) + .filter_map(Result::ok) + .collect::>(); actual.sort(); assert_eq!(expected, actual); } diff --git a/execution_engine/src/storage/trie_store/operations/tests/mod.rs b/execution_engine/src/storage/trie_store/operations/tests/mod.rs index f4d6591331..d69a891c2a 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/mod.rs @@ -1,3 +1,4 @@ +pub(crate) mod bytesrepr_utils; mod delete; mod ee_699; mod keys; From 3fb6c0e4a9c688c256bd19e01504b5ebe5a9c8fc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 12 May 2023 18:41:21 +0200 Subject: [PATCH 433/735] Ensure keys iterator will not deserialize values. --- execution_engine/src/storage/store/mod.rs | 23 +++- .../trie_store/operations/debug_store.rs | 54 +++++++++ .../src/storage/trie_store/operations/mod.rs | 104 ++++++++++++------ 3 files changed, 148 insertions(+), 33 deletions(-) create mode 100644 execution_engine/src/storage/trie_store/operations/debug_store.rs diff --git a/execution_engine/src/storage/store/mod.rs b/execution_engine/src/storage/store/mod.rs index 19ea5f8953..2db3851ba0 100644 --- a/execution_engine/src/storage/store/mod.rs +++ b/execution_engine/src/storage/store/mod.rs @@ -21,6 +21,24 @@ pub trait Store { /// `handle` returns the underlying store. fn handle(&self) -> Self::Handle; + /// Deserialize a value. + #[inline] + fn deserialize_value(&self, bytes: &[u8]) -> Result + where + V: FromBytes, + { + bytesrepr::deserialize_from_slice(bytes) + } + + /// Serialize a value. + #[inline] + fn serialize_value(&self, value: &V) -> Result, bytesrepr::Error> + where + V: ToBytes, + { + value.to_bytes() + } + /// Returns an optional value (may exist or not) as read through a transaction, or an error /// of the associated `Self::Error` variety. fn get(&self, txn: &T, key: &K) -> Result, Self::Error> @@ -33,7 +51,7 @@ pub trait Store { let raw = self.get_raw(txn, key)?; match raw { Some(bytes) => { - let value = bytesrepr::deserialize_from_slice(bytes)?; + let value = self.deserialize_value(&bytes)?; Ok(Some(value)) } None => Ok(None), @@ -61,7 +79,8 @@ pub trait Store { V: ToBytes, Self::Error: From, { - self.put_raw(txn, key, Cow::from(value.to_bytes()?)) + let serialized_value = self.serialize_value(value)?; + self.put_raw(txn, key, Cow::from(serialized_value)) } /// Puts a raw `value` into the store at `key` within a transaction, potentially returning an diff --git a/execution_engine/src/storage/trie_store/operations/debug_store.rs b/execution_engine/src/storage/trie_store/operations/debug_store.rs new file mode 100644 index 0000000000..84b58cfbfd --- /dev/null +++ b/execution_engine/src/storage/trie_store/operations/debug_store.rs @@ -0,0 +1,54 @@ +use std::marker::PhantomData; + +use casper_hashing::Digest; +use casper_types::bytesrepr::{self, FromBytes}; + +use crate::storage::{store::Store, trie::Trie, trie_store::TrieStore}; + +/// A [`TrieStore`] wrapper that panics in debug mode whenever an attempt to deserialize [`V`] is +/// made, otherwise it behaves as a [`TrieStore`]. +/// +/// The debug panic is used to ensure that this wrapper has To ensure this wrapper has zero +/// overhead, a debug assertion is used. +pub(crate) struct EnsureNeverDeserializes<'a, K, V, S>(&'a S, PhantomData<*const (K, V)>) +where + S: TrieStore; + +impl<'a, K, V, S> EnsureNeverDeserializes<'a, K, V, S> +where + S: TrieStore, +{ + pub(crate) fn new(store: &'a S) -> Self { + Self(store, PhantomData) + } +} + +impl<'a, K, V, S> Store> for EnsureNeverDeserializes<'a, K, V, S> +where + S: TrieStore, +{ + type Error = S::Error; + + type Handle = S::Handle; + + #[inline] + fn handle(&self) -> Self::Handle { + self.0.handle() + } + + #[inline] + fn deserialize_value(&self, bytes: &[u8]) -> Result, bytesrepr::Error> + where + Trie: FromBytes, + { + #[cfg(debug_assertions)] + { + let _ = bytes; + panic!("Tried to deserialize a value but expected no deserialization to happen.") + } + #[cfg(not(debug_assertions))] + { + bytesrepr::deserialize_from_slice(bytes) + } + } +} diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 8756aacece..d40107bb8b 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -1,3 +1,4 @@ +pub(crate) mod debug_store; #[cfg(test)] mod tests; @@ -15,16 +16,19 @@ use casper_types::bytesrepr::{self, Bytes, FromBytes, ToBytes}; use crate::{ shared::newtypes::CorrelationId, storage::{ + store::Store, transaction_source::{Readable, Writable}, trie::{ self, merkle_proof::{TrieMerkleProof, TrieMerkleProofStep}, - Parents, Pointer, PointerBlock, Trie, TrieTag, RADIX, USIZE_EXCEEDS_U8, + LazyTrieLeaf, Parents, Pointer, PointerBlock, Trie, TrieTag, RADIX, USIZE_EXCEEDS_U8, }, trie_store::TrieStore, }, }; +use self::debug_store::EnsureNeverDeserializes; + #[allow(clippy::enum_variant_names)] #[derive(Debug, PartialEq, Eq)] pub enum ReadResult { @@ -1027,7 +1031,7 @@ enum KeysIteratorState> { } struct VisitedTrieNode { - trie: Trie, + trie: LazyTrieLeaf, maybe_index: Option, path: Vec, } @@ -1035,7 +1039,7 @@ struct VisitedTrieNode { pub struct KeysIterator<'a, 'b, K, V, T, S: TrieStore> { initial_descend: VecDeque, visited: Vec>, - store: &'a S, + store: EnsureNeverDeserializes<'a, K, V, S>, //&'a S, txn: &'b T, state: KeysIteratorState, } @@ -1067,28 +1071,39 @@ where mut path, }) = self.visited.pop() { - let mut maybe_next_trie: Option> = None; + let mut maybe_next_trie: Option> = None; match trie { - Trie::Leaf { key, .. } => { - let key_bytes = match key.to_bytes() { - Ok(bytes) => bytes, - Err(e) => { - self.state = KeysIteratorState::Failed; - return Some(Err(e.into())); - } - }; + LazyTrieLeaf::Left(leaf_bytes) => { + if leaf_bytes.is_empty() { + self.state = KeysIteratorState::Failed; + return Some(Err(bytesrepr::Error::Formatting.into())); + } + + let key_bytes = &leaf_bytes[1..]; // Skip `Trie::Leaf` tag debug_assert!( key_bytes.starts_with(&path), "Expected key bytes to start with the current path" ); + // only return the leaf if it matches the initial descend path path.extend(&self.initial_descend); if key_bytes.starts_with(&path) { + // Only deserializes K when we're absolutely sure the path matches. + let (key, _stored_value): (K, _) = match K::from_bytes(key_bytes) { + Ok(key) => key, + Err(error) => { + self.state = KeysIteratorState::Failed; + return Some(Err(error.into())); + } + }; return Some(Ok(key)); } } - Trie::Node { ref pointer_block } => { + LazyTrieLeaf::Right(Trie::Leaf { .. }) => { + unreachable!("Lazy trie deserializer ensures that this variant never happens.") + } + LazyTrieLeaf::Right(Trie::Node { ref pointer_block }) => { // if we are still initially descending (and initial_descend is not empty), take // the first index we should descend to, otherwise take maybe_index from the // visited stack @@ -1100,11 +1115,22 @@ where .unwrap_or_default(); while index < RADIX { if let Some(ref pointer) = pointer_block[index] { - maybe_next_trie = match self.store.get(self.txn, pointer.hash()) { - Ok(trie) => trie, - Err(e) => { - self.state = KeysIteratorState::Failed; - return Some(Err(e)); + maybe_next_trie = { + match self.store.get_raw(self.txn, pointer.hash()) { + Ok(Some(trie_bytes)) => { + match trie::lazy_trie_deserialize(trie_bytes) { + Ok(lazy_trie) => Some(lazy_trie), + Err(error) => { + self.state = KeysIteratorState::Failed; + return Some(Err(error.into())); + } + } + } + Ok(None) => None, + Err(error) => { + self.state = KeysIteratorState::Failed; + return Some(Err(error)); + } } }; debug_assert!( @@ -1130,7 +1156,7 @@ where index += 1; } } - Trie::Extension { affix, pointer } => { + LazyTrieLeaf::Right(Trie::Extension { affix, pointer }) => { let descend_len = cmp::min(self.initial_descend.len(), affix.len()); let check_prefix = self .initial_descend @@ -1141,15 +1167,25 @@ where // if we are not, the check_prefix will be empty, so we will enter the if // anyway if affix.starts_with(&check_prefix) { - maybe_next_trie = match self.store.get(self.txn, pointer.hash()) { - Ok(trie) => trie, + maybe_next_trie = match self.store.get_raw(self.txn, pointer.hash()) { + Ok(Some(trie_bytes)) => match trie::lazy_trie_deserialize(trie_bytes) { + Ok(lazy_trie) => Some(lazy_trie), + Err(error) => { + self.state = KeysIteratorState::Failed; + return Some(Err(error.into())); + } + }, + Ok(None) => None, Err(e) => { self.state = KeysIteratorState::Failed; return Some(Err(e)); } }; debug_assert!( - { matches!(&maybe_next_trie, Some(Trie::Node { .. })) }, + matches!( + &maybe_next_trie, + Some(LazyTrieLeaf::Right(Trie::Node { .. })), + ), "Expected a Trie::Node but received {:?}", maybe_next_trie ); @@ -1187,17 +1223,23 @@ where S: TrieStore, S::Error: From, { - let (visited, init_state): (Vec>, _) = match store.get(txn, root) { + let store = debug_store::EnsureNeverDeserializes::new(store); + let (visited, init_state): (Vec>, _) = match store.get_raw(txn, root) { Ok(None) => (vec![], KeysIteratorState::Ok), Err(e) => (vec![], KeysIteratorState::ReturnError(e)), - Ok(Some(current_root)) => ( - vec![VisitedTrieNode { - trie: current_root, - maybe_index: None, - path: vec![], - }], - KeysIteratorState::Ok, - ), + Ok(Some(current_root_bytes)) => match trie::lazy_trie_deserialize(current_root_bytes) { + Ok(lazy_trie) => { + let visited = vec![VisitedTrieNode { + trie: lazy_trie, + maybe_index: None, + path: vec![], + }]; + let init_state = KeysIteratorState::Ok; + + (visited, init_state) + } + Err(error) => (vec![], KeysIteratorState::ReturnError(error.into())), + }, }; KeysIterator { From 02d5fab386f062e889614712fae292787ef93e07 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 12 May 2023 18:45:21 +0200 Subject: [PATCH 434/735] Unify access to LazyTrieLeaf Uses the alias rather than `Either` for future refactorings. --- execution_engine/src/storage/trie/mod.rs | 8 ++++---- .../src/storage/trie_store/operations/mod.rs | 19 +++++++++---------- 2 files changed, 13 insertions(+), 14 deletions(-) diff --git a/execution_engine/src/storage/trie/mod.rs b/execution_engine/src/storage/trie/mod.rs index 7cc67aba5a..bd88323140 100644 --- a/execution_engine/src/storage/trie/mod.rs +++ b/execution_engine/src/storage/trie/mod.rs @@ -527,10 +527,10 @@ where let trie_tag = lazy_trie_tag(&bytes); if trie_tag == Some(TrieTag::Leaf) { - Ok(Either::Left(bytes)) + Ok(LazyTrieLeaf::Left(bytes)) } else { let deserialized: Trie = bytesrepr::deserialize(bytes.into())?; - Ok(Either::Right(deserialized)) + Ok(LazyTrieLeaf::Right(deserialized)) } } @@ -538,11 +538,11 @@ pub(crate) fn lazy_trie_iter_children( trie_bytes: &LazyTrieLeaf, ) -> DescendantsIterator { match trie_bytes { - Either::Left(_) => { + LazyTrieLeaf::Left(_) => { // Leaf bytes does not have any children DescendantsIterator::ZeroOrOne(None) } - Either::Right(trie) => { + LazyTrieLeaf::Right(trie) => { // Trie::Node or Trie::Extension has children trie.iter_children() } diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index d40107bb8b..2749d4f674 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -6,7 +6,6 @@ mod tests; use std::collections::HashSet; use std::{borrow::Cow, cmp, collections::VecDeque, convert::TryInto, mem}; -use either::Either; use num_traits::FromPrimitive; use tracing::{error, warn}; @@ -326,19 +325,19 @@ where let TrieScanRaw { tip, parents } = scan_raw::(txn, store, key_bytes, root_bytes.into())?; let tip = match tip { - Either::Left(trie_leaf_bytes) => bytesrepr::deserialize(trie_leaf_bytes.to_vec())?, - Either::Right(tip) => tip, + LazyTrieLeaf::Left(trie_leaf_bytes) => bytesrepr::deserialize(trie_leaf_bytes.to_vec())?, + LazyTrieLeaf::Right(tip) => tip, }; Ok(TrieScan::new(tip, parents)) } struct TrieScanRaw { - tip: Either>, + tip: LazyTrieLeaf, parents: Parents, } impl TrieScanRaw { - fn new(tip: Either>, parents: Parents) -> Self { + fn new(tip: LazyTrieLeaf, parents: Parents) -> Self { TrieScanRaw { tip, parents } } } @@ -368,8 +367,8 @@ where loop { let maybe_trie_leaf = trie::lazy_trie_deserialize(current)?; current_trie = match maybe_trie_leaf { - leaf_bytes @ Either::Left(_) => return Ok(TrieScanRaw::new(leaf_bytes, acc)), - Either::Right(trie_object) => trie_object, + leaf_bytes @ LazyTrieLeaf::Left(_) => return Ok(TrieScanRaw::new(leaf_bytes, acc)), + LazyTrieLeaf::Right(trie_object) => trie_object, }; match current_trie { _leaf @ Trie::Leaf { .. } => { @@ -391,7 +390,7 @@ where Some(pointer) => pointer, None => { return Ok(TrieScanRaw::new( - Either::Right(Trie::Node { pointer_block }), + LazyTrieLeaf::Right(Trie::Node { pointer_block }), acc, )); } @@ -415,7 +414,7 @@ where let sub_path = &path[depth..depth + affix.len()]; if sub_path != affix.as_slice() { return Ok(TrieScanRaw::new( - Either::Right(Trie::Extension { affix, pointer }), + LazyTrieLeaf::Right(Trie::Extension { affix, pointer }), acc, )); } @@ -476,7 +475,7 @@ where // Check that tip is a leaf match tip { - Either::Left(bytes) + LazyTrieLeaf::Left(bytes) if { // Partially deserialize a key of a leaf node to ensure that we can only continue if // the key matches what we're looking for. From 0e16e7d221be5a294f2ffc29e649ce1660f52868 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Tue, 23 May 2023 17:54:27 +0200 Subject: [PATCH 435/735] Remove obsolete aliases from the costs. --- execution_engine/src/shared/host_function_costs.rs | 2 -- resources/local/chainspec.toml.in | 4 ++-- resources/production/chainspec.toml | 4 ++-- resources/test/valid/0_9_0/chainspec.toml | 4 ++-- resources/test/valid/0_9_0_unordered/chainspec.toml | 4 ++-- resources/test/valid/1_0_0/chainspec.toml | 4 ++-- 6 files changed, 10 insertions(+), 12 deletions(-) diff --git a/execution_engine/src/shared/host_function_costs.rs b/execution_engine/src/shared/host_function_costs.rs index 3c4ee91531..4cd54b8f71 100644 --- a/execution_engine/src/shared/host_function_costs.rs +++ b/execution_engine/src/shared/host_function_costs.rs @@ -203,12 +203,10 @@ pub struct HostFunctionCosts { /// Cost of calling the `read_value` host function. pub read_value: HostFunction<[Cost; 3]>, /// Cost of calling the `dictionary_get` host function. - #[serde(alias = "read_value_local")] pub dictionary_get: HostFunction<[Cost; 3]>, /// Cost of calling the `write` host function. pub write: HostFunction<[Cost; 4]>, /// Cost of calling the `dictionary_put` host function. - #[serde(alias = "write_local")] pub dictionary_put: HostFunction<[Cost; 4]>, /// Cost of calling the `add` host function. pub add: HostFunction<[Cost; 4]>, diff --git a/resources/local/chainspec.toml.in b/resources/local/chainspec.toml.in index 3875810cbe..c9f6373572 100644 --- a/resources/local/chainspec.toml.in +++ b/resources/local/chainspec.toml.in @@ -201,7 +201,7 @@ provision_contract_user_group_uref = { cost = 200, arguments = [0, 0, 0, 0, 0] } put_key = { cost = 38_000, arguments = [0, 1_100, 0, 0] } read_host_buffer = { cost = 3_500, arguments = [0, 310, 0] } read_value = { cost = 6_000, arguments = [0, 0, 0] } -read_value_local = { cost = 5_500, arguments = [0, 590, 0] } +dictionary_get = { cost = 5_500, arguments = [0, 590, 0] } remove_associated_key = { cost = 4_200, arguments = [0, 0] } remove_contract_user_group = { cost = 200, arguments = [0, 0, 0, 0] } remove_contract_user_group_urefs = { cost = 200, arguments = [0, 0, 0, 0, 0, 0] } @@ -214,7 +214,7 @@ transfer_from_purse_to_purse = { cost = 82_000, arguments = [0, 0, 0, 0, 0, 0, 0 transfer_to_account = { cost = 2_500_000_000, arguments = [0, 0, 0, 0, 0, 0, 0] } update_associated_key = { cost = 4_200, arguments = [0, 0, 0] } write = { cost = 14_000, arguments = [0, 0, 0, 980] } -write_local = { cost = 9_500, arguments = [0, 1_800, 0, 520] } +dictionary_put = { cost = 9_500, arguments = [0, 1_800, 0, 520] } [system_costs] wasmless_transfer_cost = 100_000_000 diff --git a/resources/production/chainspec.toml b/resources/production/chainspec.toml index f645cd12c1..9cc2d1873d 100644 --- a/resources/production/chainspec.toml +++ b/resources/production/chainspec.toml @@ -208,7 +208,7 @@ provision_contract_user_group_uref = { cost = 200, arguments = [0, 0, 0, 0, 0] } put_key = { cost = 38_000, arguments = [0, 1_100, 0, 0] } read_host_buffer = { cost = 3_500, arguments = [0, 310, 0] } read_value = { cost = 6_000, arguments = [0, 0, 0] } -read_value_local = { cost = 5_500, arguments = [0, 590, 0] } +dictionary_get = { cost = 5_500, arguments = [0, 590, 0] } remove_associated_key = { cost = 4_200, arguments = [0, 0] } remove_contract_user_group = { cost = 200, arguments = [0, 0, 0, 0] } remove_contract_user_group_urefs = { cost = 200, arguments = [0, 0, 0, 0, 0, 0] } @@ -221,7 +221,7 @@ transfer_from_purse_to_purse = { cost = 82_000, arguments = [0, 0, 0, 0, 0, 0, 0 transfer_to_account = { cost = 2_500_000_000, arguments = [0, 0, 0, 0, 0, 0, 0] } update_associated_key = { cost = 4_200, arguments = [0, 0, 0] } write = { cost = 14_000, arguments = [0, 0, 0, 980] } -write_local = { cost = 9_500, arguments = [0, 1_800, 0, 520] } +dictionary_put = { cost = 9_500, arguments = [0, 1_800, 0, 520] } [system_costs] wasmless_transfer_cost = 100_000_000 diff --git a/resources/test/valid/0_9_0/chainspec.toml b/resources/test/valid/0_9_0/chainspec.toml index dbd9fed677..01c279d42b 100644 --- a/resources/test/valid/0_9_0/chainspec.toml +++ b/resources/test/valid/0_9_0/chainspec.toml @@ -119,7 +119,7 @@ provision_contract_user_group_uref = { cost = 124, arguments = [0,1,2,3,4] } put_key = { cost = 125, arguments = [0, 1, 2, 3] } read_host_buffer = { cost = 126, arguments = [0, 1, 2] } read_value = { cost = 127, arguments = [0, 1, 0] } -read_value_local = { cost = 128, arguments = [0, 1, 0] } +dictionary_get = { cost = 128, arguments = [0, 1, 0] } remove_associated_key = { cost = 129, arguments = [0, 1] } remove_contract_user_group = { cost = 130, arguments = [0, 1, 2, 3] } remove_contract_user_group_urefs = { cost = 131, arguments = [0,1,2,3,4,5] } @@ -132,7 +132,7 @@ transfer_from_purse_to_purse = { cost = 137, arguments = [0, 1, 2, 3, 4, 5, 6, 7 transfer_to_account = { cost = 138, arguments = [0, 1, 2, 3, 4, 5, 6] } update_associated_key = { cost = 139, arguments = [0, 1, 2] } write = { cost = 140, arguments = [0, 1, 0, 2] } -write_local = { cost = 141, arguments = [0, 1, 2, 3] } +dictionary_put = { cost = 141, arguments = [0, 1, 2, 3] } [system_costs] wasmless_transfer_cost = 100_000_000 diff --git a/resources/test/valid/0_9_0_unordered/chainspec.toml b/resources/test/valid/0_9_0_unordered/chainspec.toml index e7cff551e0..2a6f304bde 100644 --- a/resources/test/valid/0_9_0_unordered/chainspec.toml +++ b/resources/test/valid/0_9_0_unordered/chainspec.toml @@ -117,7 +117,7 @@ provision_contract_user_group_uref = { cost = 124, arguments = [0,1,2,3,4] } put_key = { cost = 125, arguments = [0, 1, 2, 3] } read_host_buffer = { cost = 126, arguments = [0, 1, 2] } read_value = { cost = 127, arguments = [0, 1, 0] } -read_value_local = { cost = 128, arguments = [0, 1, 0] } +dictionary_get = { cost = 128, arguments = [0, 1, 0] } remove_associated_key = { cost = 129, arguments = [0, 1] } remove_contract_user_group = { cost = 130, arguments = [0, 1, 2, 3] } remove_contract_user_group_urefs = { cost = 131, arguments = [0,1,2,3,4,5] } @@ -130,7 +130,7 @@ transfer_from_purse_to_purse = { cost = 137, arguments = [0, 1, 2, 3, 4, 5, 6, 7 transfer_to_account = { cost = 138, arguments = [0, 1, 2, 3, 4, 5, 6] } update_associated_key = { cost = 139, arguments = [0, 1, 2] } write = { cost = 140, arguments = [0, 1, 0, 2] } -write_local = { cost = 141, arguments = [0, 1, 2, 3] } +dictionary_put = { cost = 141, arguments = [0, 1, 2, 3] } [system_costs] wasmless_transfer_cost = 100_000_000 diff --git a/resources/test/valid/1_0_0/chainspec.toml b/resources/test/valid/1_0_0/chainspec.toml index 9f456b6cce..c31c54056d 100644 --- a/resources/test/valid/1_0_0/chainspec.toml +++ b/resources/test/valid/1_0_0/chainspec.toml @@ -120,7 +120,7 @@ put_key = { cost = 125, arguments = [0, 1, 2, 3] } random_bytes = { cost = 123, arguments = [0, 1] } read_host_buffer = { cost = 126, arguments = [0, 1, 2] } read_value = { cost = 127, arguments = [0, 1, 0] } -read_value_local = { cost = 128, arguments = [0, 1, 0] } +dictionary_get = { cost = 128, arguments = [0, 1, 0] } remove_associated_key = { cost = 129, arguments = [0, 1] } remove_contract_user_group = { cost = 130, arguments = [0, 1, 2, 3] } remove_contract_user_group_urefs = { cost = 131, arguments = [0,1,2,3,4,5] } @@ -133,7 +133,7 @@ transfer_from_purse_to_purse = { cost = 137, arguments = [0, 1, 2, 3, 4, 5, 6, 7 transfer_to_account = { cost = 138, arguments = [0, 1, 2, 3, 4, 5, 6] } update_associated_key = { cost = 139, arguments = [0, 1, 2] } write = { cost = 140, arguments = [0, 1, 0, 2] } -write_local = { cost = 141, arguments = [0, 1, 2, 3] } +dictionary_put = { cost = 141, arguments = [0, 1, 2, 3] } [system_costs] wasmless_transfer_cost = 100_000_000 From 3cf31d36afd511f4c8c6bf85289f131eaacb4361 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 24 May 2023 09:44:05 +0000 Subject: [PATCH 436/735] ee/tests: extend tests to check V deserialization on read/write Extend testing logic to check if reading a value from a trie deserializes it once if the key is found, or zero times if the key does not exist. Extend testing logic to check if writing a value doesn't deserialize it during a write operation. Extended the existing counter that tracks calls to `from_bytes` for `V` to work with `read` and `write` operations. Signed-off-by: Alexandru Sardan --- Cargo.lock | 1 + execution_engine/Cargo.toml | 1 + .../trie_store/operations/tests/delete.rs | 34 +++++--- .../trie_store/operations/tests/mod.rs | 81 +++++++++++++++---- .../operations/tests/synchronize.rs | 29 +++++++ 5 files changed, 123 insertions(+), 23 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index b32da12bb2..50f783bc7e 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -429,6 +429,7 @@ version = "4.0.0" dependencies = [ "anyhow", "assert_matches", + "backtrace", "base16", "bincode", "casper-hashing", diff --git a/execution_engine/Cargo.toml b/execution_engine/Cargo.toml index 074d20d362..62d60a68a0 100644 --- a/execution_engine/Cargo.toml +++ b/execution_engine/Cargo.toml @@ -56,6 +56,7 @@ criterion = "0.3.5" proptest = "1.0.0" tempfile = "3.4.0" walrus = "0.19.0" +backtrace = "0.3.67" [features] default = ["gens"] diff --git a/execution_engine/src/storage/trie_store/operations/tests/delete.rs b/execution_engine/src/storage/trie_store/operations/tests/delete.rs index 6ab12a7549..823a6fbdd4 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/delete.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/delete.rs @@ -16,10 +16,11 @@ where S::Error: From, E: From + From, { - let _counter = TestValue::before_operation(TestOperation::Delete); + let delete_op = operations::delete:: as *mut c_void; + let _counter = TestValue::before_operation(delete_op); let delete_result = operations::delete::(correlation_id, txn, store, root, key_to_delete); - let counter = TestValue::after_operation(TestOperation::Delete); + let counter = TestValue::after_operation(delete_op); assert_eq!(counter, 0, "Delete should never deserialize a value"); let delete_result = delete_result?; if let DeleteResult::Deleted(new_root) = delete_result { @@ -190,6 +191,7 @@ mod partial_tries { } mod full_tries { + use super::*; use std::ops::RangeInclusive; use proptest::{collection, prelude::*}; @@ -209,7 +211,7 @@ mod full_tries { operations::{ delete, tests::{ - InMemoryTestContext, LmdbTestContext, TestKey, TestOperation, TestValue, + InMemoryTestContext, LmdbTestContext, TestKey, TestValue, TEST_TRIE_GENERATORS, }, write, DeleteResult, WriteResult, @@ -235,10 +237,13 @@ mod full_tries { S::Error: From, E: From + From + From, { - let mut txn = environment.create_read_write_txn()?; + let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; + let write_op = write:: as *mut c_void; + let mut roots = Vec::new(); // Insert the key-value pairs, keeping track of the roots as we go for (key, value) in pairs { + let _counter = TestValue::before_operation(write_op); if let WriteResult::Written(new_root) = write::( correlation_id, &mut txn, @@ -251,14 +256,17 @@ mod full_tries { } else { panic!("Could not write pair") } + let counter = TestValue::after_operation(write_op); + assert_eq!(counter, 0, "Write should never deserialize a value"); } // Delete the key-value pairs, checking the resulting roots as we go let mut current_root = roots.pop().unwrap_or_else(|| root.to_owned()); + let delete_op = delete:: as *mut c_void; for (key, _value) in pairs.iter().rev() { - let _counter = TestValue::before_operation(TestOperation::Delete); + let _counter = TestValue::before_operation(delete_op); let delete_result = delete::(correlation_id, &mut txn, store, ¤t_root, key); - let counter = TestValue::after_operation(TestOperation::Delete); + let counter = TestValue::after_operation(delete_op); assert_eq!(counter, 0, "Delete should never deserialize a value"); if let DeleteResult::Deleted(new_root) = delete_result? { current_root = roots.pop().unwrap_or_else(|| root.to_owned()); @@ -336,10 +344,12 @@ mod full_tries { S::Error: From, E: From + From + From, { - let mut txn = environment.create_read_write_txn()?; + let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; + let write_op = write:: as *mut c_void; let mut expected_root = *root; // Insert the key-value pairs, keeping track of the roots as we go for (key, value) in pairs_to_insert.iter() { + let _counter = TestValue::before_operation(write_op); if let WriteResult::Written(new_root) = write::(correlation_id, &mut txn, store, &expected_root, key, value)? { @@ -347,12 +357,15 @@ mod full_tries { } else { panic!("Could not write pair") } + let counter = TestValue::after_operation(write_op); + assert_eq!(counter, 0, "Write should never deserialize a value"); } + let delete_op = delete:: as *mut c_void; for key in keys_to_delete.iter() { - let _counter = TestValue::before_operation(TestOperation::Delete); + let _counter = TestValue::before_operation(delete_op); let delete_result = delete::(correlation_id, &mut txn, store, &expected_root, key); - let counter = TestValue::after_operation(TestOperation::Delete); + let counter = TestValue::after_operation(delete_op); assert_eq!(counter, 0, "Delete should never deserialize a value"); match delete_result? { DeleteResult::Deleted(new_root) => { @@ -372,6 +385,7 @@ mod full_tries { let mut actual_root = *root; for (key, value) in pairs_to_insert_less_deleted.iter() { + let _counter = TestValue::before_operation(write_op); if let WriteResult::Written(new_root) = write::(correlation_id, &mut txn, store, &actual_root, key, value)? { @@ -379,6 +393,8 @@ mod full_tries { } else { panic!("Could not write pair") } + let counter = TestValue::after_operation(write_op); + assert_eq!(counter, 0, "Write should never deserialize a value"); } assert_eq!(expected_root, actual_root, "Expected did not match actual"); diff --git a/execution_engine/src/storage/trie_store/operations/tests/mod.rs b/execution_engine/src/storage/trie_store/operations/tests/mod.rs index f4d6591331..594c28be4d 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/mod.rs @@ -14,6 +14,8 @@ use std::{ ops::Not, }; +use backtrace::Backtrace; +use libc::c_void; use lmdb::DatabaseFlags; use tempfile::{tempdir, TempDir}; @@ -67,12 +69,7 @@ impl FromBytes for TestKey { const TEST_VAL_LENGTH: usize = 6; -#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug)] -pub(crate) enum TestOperation { - Delete, // Deleting an existing value should not deserialize V -} - -type Counter = BTreeMap; +type Counter = BTreeMap<*mut c_void, usize>; thread_local! { static FROMBYTES_INSIDE_OPERATION: RefCell = RefCell::new(Default::default()); @@ -84,7 +81,7 @@ thread_local! { struct TestValue([u8; TEST_VAL_LENGTH]); impl TestValue { - pub(crate) fn before_operation(op: TestOperation) -> usize { + pub(crate) fn before_operation(op: *mut c_void) -> usize { FROMBYTES_INSIDE_OPERATION.with(|flag| { *flag.borrow_mut().entry(op).or_default() += 1; }); @@ -97,7 +94,7 @@ impl TestValue { }) } - pub(crate) fn after_operation(op: TestOperation) -> usize { + pub(crate) fn after_operation(op: *mut c_void) -> usize { FROMBYTES_INSIDE_OPERATION.with(|flag| { *flag.borrow_mut().get_mut(&op).unwrap() -= 1; }); @@ -105,9 +102,15 @@ impl TestValue { FROMBYTES_COUNTER.with(|counter| counter.borrow().get(&op).copied().unwrap()) } - pub(crate) fn increment() { + pub(crate) fn increment(backtrace: &Backtrace) { let flag = FROMBYTES_INSIDE_OPERATION.with(|flag| flag.borrow().clone()); - let op = TestOperation::Delete; + let operations: Vec<*mut c_void> = flag.keys().cloned().collect(); + let op = if let Some(op) = first_caller_from_set(backtrace, &operations) { + op + } else { + return; + }; + if let Some(value) = flag.get(&op) { if *value > 0 { FROMBYTES_COUNTER.with(|counter| { @@ -128,13 +131,27 @@ impl ToBytes for TestValue { } } +// Determine if a there exists a caller in the backtrace that matches any of the specified symbols +fn first_caller_from_set(backtrace: &Backtrace, symbols: &[*mut c_void]) -> Option<*mut c_void> { + if symbols.is_empty() { + return None; + } + + backtrace + .frames() + .iter() + .find(|frame| symbols.contains(&frame.symbol_address())) + .map(|frame| frame.symbol_address()) +} + impl FromBytes for TestValue { fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> { let (key, rem) = bytes.split_at(TEST_VAL_LENGTH); let mut ret = [0u8; TEST_VAL_LENGTH]; ret.copy_from_slice(key); - TestValue::increment(); + let backtrace = Backtrace::new_unresolved(); + TestValue::increment(&backtrace); Ok((TestValue(ret), rem)) } @@ -649,9 +666,18 @@ where for leaf in leaves { if let Trie::Leaf { key, value } = leaf { + let read_op = read:: as *mut c_void; + let _counter = TestValue::before_operation(read_op); let maybe_value: ReadResult = read::<_, _, _, _, E>(correlation_id, txn, store, root, key)?; - ret.push(ReadResult::Found(*value) == maybe_value) + let counter = TestValue::after_operation(read_op); + if let ReadResult::Found(value_found) = maybe_value { + assert_eq!( + counter, 1, + "Read should deserialize value only once if the key is found" + ); + ret.push(*value == value_found); + } } else { panic!("leaves should only contain leaves") } @@ -806,12 +832,16 @@ where return Ok(results); } let mut root_hash = root_hash.to_owned(); - let mut txn = environment.create_read_write_txn()?; + let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; + let write_op = write:: as *mut c_void; for leaf in leaves.iter() { if let Trie::Leaf { key, value } = leaf { + let _counter = TestValue::before_operation(write_op); let write_result = write::<_, _, _, _, E>(correlation_id, &mut txn, store, &root_hash, key, value)?; + let counter = TestValue::after_operation(write_op); + assert_eq!(counter, 0, "Write should never deserialize a value"); match write_result { WriteResult::Written(hash) => { root_hash = hash; @@ -878,10 +908,29 @@ where S::Error: From, E: From + From + From, { - let txn = environment.create_read_txn()?; + let txn: R::ReadTransaction = environment.create_read_txn()?; + let read_op = read:: as *mut c_void; for (index, root_hash) in root_hashes.iter().enumerate() { for (key, value) in &pairs[..=index] { + let _counter = TestValue::before_operation(read_op); let result = read::<_, _, _, _, E>(correlation_id, &txn, store, root_hash, key)?; + let counter = TestValue::after_operation(read_op); + + match result { + ReadResult::Found(_) => { + assert_eq!( + counter, 1, + "Read should deserialize value only once if the key is found" + ); + } + ReadResult::NotFound | ReadResult::RootNotFound => { + assert_eq!( + counter, 0, + "Read should never deserialize value if the key is not found" + ); + } + } + if ReadResult::Found(*value) != result { return Ok(false); } @@ -931,7 +980,9 @@ where let mut root_hash = root_hash.to_owned(); let mut txn = environment.create_read_write_txn()?; + let write_op = write:: as *mut c_void; for (key, value) in pairs.iter() { + let _counter = TestValue::before_operation(write_op); match write::<_, _, _, _, E>(correlation_id, &mut txn, store, &root_hash, key, value)? { WriteResult::Written(hash) => { root_hash = hash; @@ -939,6 +990,8 @@ where WriteResult::AlreadyExists => (), WriteResult::RootNotFound => panic!("write_leaves given an invalid root"), }; + let counter = TestValue::after_operation(write_op); + assert_eq!(counter, 0, "Write should never deserialize a value"); results.push(root_hash); } txn.commit()?; diff --git a/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs b/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs index 548dad0dfb..4e766cad4f 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs @@ -1,5 +1,6 @@ use std::{borrow::Cow, collections::HashSet}; +use libc::c_void; use num_traits::FromPrimitive; use casper_hashing::Digest; @@ -188,10 +189,12 @@ where { let source_txn: R::ReadTransaction = source_environment.create_read_txn()?; let target_txn: R::ReadTransaction = target_environment.create_read_txn()?; + let read_op = operations::read:: as *mut c_void; let target_keys = operations::keys::<_, _, _, _>(correlation_id, &target_txn, target_store, root) .collect::, S::Error>>()?; for key in target_keys { + let _counter = TestValue::before_operation(read_op); let maybe_value: ReadResult = operations::read::<_, _, _, _, E>( correlation_id, &source_txn, @@ -199,6 +202,18 @@ where root, &key, )?; + let counter = TestValue::after_operation(read_op); + if maybe_value.is_found() { + assert_eq!( + counter, 1, + "Read should deserialize value only once if the key is found" + ); + } else { + assert_eq!( + counter, 0, + "Read should never deserialize value if the key is not found" + ); + } assert!(maybe_value.is_found()) } source_txn.commit()?; @@ -213,6 +228,8 @@ where operations::keys::<_, _, _, _>(correlation_id, &source_txn, source_store, root) .collect::, S::Error>>()?; for key in source_keys { + let read_op = operations::read:: as *mut c_void; + let _counter = TestValue::before_operation(read_op); let maybe_value: ReadResult = operations::read::<_, _, _, _, E>( correlation_id, &target_txn, @@ -220,6 +237,18 @@ where root, &key, )?; + let counter = TestValue::after_operation(read_op); + if maybe_value.is_found() { + assert_eq!( + counter, 1, + "Read should deserialize value only once if the key is found" + ); + } else { + assert_eq!( + counter, 0, + "Read should never deserialize value if the key is not found" + ); + } assert!(maybe_value.is_found()) } source_txn.commit()?; From 706f1da574c2bc1f6b6492c31e5a79881b8976fd Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 24 May 2023 09:53:54 +0000 Subject: [PATCH 437/735] ee/trie_store: don't deserialize V during write operation Avoid deserializing `V` during a `write` operation to the trie_store. Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/operations/mod.rs | 72 +++++++++++-------- 1 file changed, 44 insertions(+), 28 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 6201aeeb4e..3c05a84de3 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -929,45 +929,61 @@ where key: key.to_owned(), value: value.to_owned(), }; + let current_root_bytes = current_root.to_bytes()?; let path: Vec = key.to_bytes()?; - let TrieScan { tip, parents } = - scan::(txn, store, &path, ¤t_root)?; + let TrieScanRaw { tip, parents } = + scan_raw::(txn, store, &path, current_root_bytes.into())?; let new_elements: Vec<(Digest, Trie)> = match tip { - // If the "tip" is the same as the new leaf, then the leaf - // is already in the Trie. - Trie::Leaf { .. } if new_leaf == tip => Vec::new(), - // If the "tip" is an existing leaf with the same key as the - // new leaf, but the existing leaf and new leaf have different - // values, then we are in the situation where we are "updating" - // an existing leaf. - Trie::Leaf { - key: ref leaf_key, - value: ref leaf_value, - } if key == leaf_key && value != leaf_value => rehash(new_leaf, parents)?, - // If the "tip" is an existing leaf with a different key than - // the new leaf, then we are in a situation where the new leaf - // shares some common prefix with the existing leaf. - Trie::Leaf { - key: ref existing_leaf_key, - .. - } if key != existing_leaf_key => { - let existing_leaf_path = existing_leaf_key.to_bytes()?; - let (new_node, parents) = reparent_leaf(&path, &existing_leaf_path, parents)?; - let parents = add_node_to_parents(&path, new_node, parents); - rehash(new_leaf, parents)? + Either::Left(leaf_bytes) => { + let trie_tag = trie::lazy_trie_tag(leaf_bytes.as_slice()); + assert_eq!( + trie_tag, + Some(TrieTag::Leaf), + "Unexpected trie variant found instead of a `TrieTag::Leaf`" + ); + + let key_bytes: &[u8] = &leaf_bytes[1..]; + let (existing_leaf_key, existing_value_bytes) = K::from_bytes(key_bytes)?; + + if key != &existing_leaf_key { + // If the "tip" is an existing leaf with a different key than + // the new leaf, then we are in a situation where the new leaf + // shares some common prefix with the existing leaf. + let existing_leaf_path = existing_leaf_key.to_bytes()?; + let (new_node, parents) = + reparent_leaf(&path, &existing_leaf_path, parents)?; + let parents = add_node_to_parents(&path, new_node, parents); + rehash(new_leaf, parents)? + } else { + let new_value_bytes = value.to_bytes()?; + if new_value_bytes != existing_value_bytes { + // If the "tip" is an existing leaf with the same key as the + // new leaf, but the existing leaf and new leaf have different + // values, then we are in the situation where we are "updating" + // an existing leaf. + rehash(new_leaf, parents)? + } else { + // Both key and values are the same. + // If the "tip" is the same as the new leaf, then the leaf + // is already in the Trie. + Vec::new() + } + } } - // This case is unreachable, but the compiler can't figure + // `trie_scan_raw` will never deserialize a leaf and will always + // deserialize other Trie variants. + // So this case is unreachable, but the compiler can't figure // that out. - Trie::Leaf { .. } => unreachable!(), + Either::Right(Trie::Leaf { .. }) => unreachable!(), // If the "tip" is an existing node, then we can add a pointer // to the new leaf to the node's pointer block. - node @ Trie::Node { .. } => { + Either::Right(node @ Trie::Node { .. }) => { let parents = add_node_to_parents(&path, node, parents); rehash(new_leaf, parents)? } // If the "tip" is an extension node, then we must modify or // replace it, adding a node where necessary. - extension @ Trie::Extension { .. } => { + Either::Right(extension @ Trie::Extension { .. }) => { let SplitResult { new_node, parents, From e2110d67899984ad6488b0eea93553d5c56dafba Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 24 May 2023 09:55:29 +0000 Subject: [PATCH 438/735] ee/trie_store: remove unused `scan` operation Remove unused `scan` operation in favor of `scan_raw`. Adjust the tests to use `scan_raw` instead. Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/operations/mod.rs | 44 ++----------------- .../trie_store/operations/tests/scan.rs | 26 +++++++---- 2 files changed, 22 insertions(+), 48 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 3c05a84de3..69a440773a 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -289,45 +289,6 @@ where }) } -struct TrieScan { - tip: Trie, - parents: Parents, -} - -impl TrieScan { - fn new(tip: Trie, parents: Parents) -> Self { - TrieScan { tip, parents } - } -} - -/// Returns a [`TrieScan`] from the given key at a given root in a given store. -/// A scan consists of the deepest trie variant found at that key, a.k.a. the -/// "tip", along the with the parents of that variant. Parents are ordered by -/// their depth from the root (shallow to deep). -fn scan( - txn: &T, - store: &S, - key_bytes: &[u8], - root: &Trie, -) -> Result, E> -where - K: ToBytes + FromBytes + Clone, - V: ToBytes + FromBytes + Clone, - T: Readable, - S: TrieStore, - S::Error: From, - E: From + From, -{ - let root_bytes = root.to_bytes()?; - let TrieScanRaw { tip, parents } = - scan_raw::(txn, store, key_bytes, root_bytes.into())?; - let tip = match tip { - Either::Left(trie_leaf_bytes) => bytesrepr::deserialize(trie_leaf_bytes.to_vec())?, - Either::Right(tip) => tip, - }; - Ok(TrieScan::new(tip, parents)) -} - struct TrieScanRaw { tip: Either>, parents: Parents, @@ -339,7 +300,10 @@ impl TrieScanRaw { } } -/// Just like scan, however we don't parse the tip. +/// Returns a [`TrieScanRaw`] from the given key at a given root in a given store. +/// A scan consists of the deepest trie variant found at that key, a.k.a. the +/// "tip", along the with the parents of that variant. Parents are ordered by +/// their depth from the root (shallow to deep). The tip is not parsed. fn scan_raw( txn: &T, store: &S, diff --git a/execution_engine/src/storage/trie_store/operations/tests/scan.rs b/execution_engine/src/storage/trie_store/operations/tests/scan.rs index 5d8b74d7ea..76311cef40 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/scan.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/scan.rs @@ -5,7 +5,7 @@ use crate::{ shared::newtypes::CorrelationId, storage::{ error::{self, in_memory}, - trie_store::operations::{scan, TrieScan}, + trie_store::operations::{scan_raw, TrieScanRaw}, }, }; @@ -26,29 +26,39 @@ where let root = store .get(&txn, root_hash)? .expect("check_scan received an invalid root hash"); - let TrieScan { mut tip, parents } = - scan::(&txn, store, key, &root)?; + let root_bytes = root.to_bytes()?; + let TrieScanRaw { mut tip, parents } = scan_raw::( + &txn, + store, + key, + root_bytes.into(), + )?; for (index, parent) in parents.into_iter().rev() { let expected_tip_hash = { - let tip_bytes = tip.to_bytes().unwrap(); - Digest::hash(&tip_bytes) + match tip { + either::Either::Left(leaf_bytes) => Digest::hash(&leaf_bytes), + either::Either::Right(trie) => { + let tip_bytes = trie.to_bytes().unwrap(); + Digest::hash(&tip_bytes) + } + } }; match parent { Trie::Leaf { .. } => panic!("parents should not contain any leaves"), Trie::Node { pointer_block } => { let pointer_tip_hash = pointer_block[::from(index)].map(|ptr| *ptr.hash()); assert_eq!(Some(expected_tip_hash), pointer_tip_hash); - tip = Trie::Node { pointer_block }; + tip = either::Either::Right(Trie::Node { pointer_block }); } Trie::Extension { affix, pointer } => { let pointer_tip_hash = pointer.hash().to_owned(); assert_eq!(expected_tip_hash, pointer_tip_hash); - tip = Trie::Extension { affix, pointer }; + tip = either::Either::Right(Trie::Extension { affix, pointer }); } } } - assert_eq!(root, tip); + assert_eq!(root, tip.expect_right("Unexpected leaf found")); txn.commit()?; Ok(()) } From 44fb237ed4872390d5acb7dde0bc68d74bf5f1e4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 13 Feb 2023 15:01:49 +0100 Subject: [PATCH 439/735] Default to 0 days locked funds & vesting schedule. This code was relevant for casper network's mainnet launch, and now this passed long time ago. Only the relevant tests change the schedule into ~181 days total. --- .../test_support/src/lib.rs | 10 +- .../src/test/system_contracts/auction/bids.rs | 294 ++++++------------ resources/production/chainspec.toml | 4 +- 3 files changed, 108 insertions(+), 200 deletions(-) diff --git a/execution_engine_testing/test_support/src/lib.rs b/execution_engine_testing/test_support/src/lib.rs index cbc09d73aa..ece8282d72 100644 --- a/execution_engine_testing/test_support/src/lib.rs +++ b/execution_engine_testing/test_support/src/lib.rs @@ -47,16 +47,14 @@ pub use step_request_builder::StepRequestBuilder; pub use upgrade_request_builder::UpgradeRequestBuilder; pub use wasm_test_builder::{InMemoryWasmTestBuilder, LmdbWasmTestBuilder, WasmTestBuilder}; -const DAY_MILLIS: u64 = 24 * 60 * 60 * 1000; - /// Default number of validator slots. pub const DEFAULT_VALIDATOR_SLOTS: u32 = 5; /// Default auction delay. pub const DEFAULT_AUCTION_DELAY: u64 = 1; -/// Default lock-in period of 90 days -pub const DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * DAY_MILLIS; -/// Default length of total vesting schedule of 91 days. -pub const DEFAULT_VESTING_SCHEDULE_PERIOD_MILLIS: u64 = 91 * DAY_MILLIS; +/// Default lock-in period is currently zero. +pub const DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 0; +/// Default length of total vesting schedule is currently zero. +pub const DEFAULT_VESTING_SCHEDULE_PERIOD_MILLIS: u64 = 0; /// Default number of eras that need to pass to be able to withdraw unbonded funds. pub const DEFAULT_UNBONDING_DELAY: u64 = 7; diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index 3f549640f1..28cdc67bbb 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -5,13 +5,13 @@ use num_traits::{One, Zero}; use once_cell::sync::Lazy; use casper_engine_test_support::{ - utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, - UpgradeRequestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, + ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, UpgradeRequestBuilder, + DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, DEFAULT_GENESIS_CONFIG_HASH, - DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PROTOCOL_VERSION, - DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, - DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, - PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, TIMESTAMP_MILLIS_INCREMENT, + DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_PROTOCOL_VERSION, DEFAULT_ROUND_SEIGNIORAGE_RATE, + DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, + MINIMUM_ACCOUNT_CREATION_BALANCE, PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, + TIMESTAMP_MILLIS_INCREMENT, }; use casper_execution_engine::{ core::{ @@ -29,10 +29,8 @@ use casper_execution_engine::{ execution, }, shared::{system_config::SystemConfig, transform::Transform, wasm_config::WasmConfig}, - storage::global_state::in_memory::InMemoryGlobalState, }; use casper_types::{ - self, account::AccountHash, api_error::ApiError, runtime_args, @@ -154,7 +152,7 @@ const DELEGATOR_2_BALANCE: u64 = DEFAULT_ACCOUNT_INITIAL_BALANCE; const VALIDATOR_1_DELEGATION_RATE: DelegationRate = 0; const EXPECTED_INITIAL_RELEASE_TIMESTAMP_MILLIS: u64 = - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS; + DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; const WEEK_TIMESTAMPS: [u64; 14] = [ EXPECTED_INITIAL_RELEASE_TIMESTAMP_MILLIS, @@ -173,6 +171,61 @@ const WEEK_TIMESTAMPS: [u64; 14] = [ EXPECTED_INITIAL_RELEASE_TIMESTAMP_MILLIS + (WEEK_MILLIS * 13), ]; +const DAY_MILLIS: u64 = 24 * 60 * 60 * 1000; +const CASPER_VESTING_SCHEDULE_PERIOD_MILLIS: u64 = 91 * DAY_MILLIS; +const CASPER_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * DAY_MILLIS; + +fn setup(accounts: Vec) -> InMemoryWasmTestBuilder { + let engine_config = EngineConfig::new( + DEFAULT_MAX_QUERY_DEPTH, + DEFAULT_MAX_ASSOCIATED_KEYS, + DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, + DEFAULT_MINIMUM_DELEGATION_AMOUNT, + DEFAULT_STRICT_ARGUMENT_CHECKING, + CASPER_VESTING_SCHEDULE_PERIOD_MILLIS, + None, + *DEFAULT_WASM_CONFIG, + *DEFAULT_SYSTEM_CONFIG, + ); + + let run_genesis_request = { + let exec_config = { + let wasm_config = *DEFAULT_WASM_CONFIG; + let system_config = *DEFAULT_SYSTEM_CONFIG; + let validator_slots = DEFAULT_VALIDATOR_SLOTS; + let auction_delay = DEFAULT_AUCTION_DELAY; + let locked_funds_period_millis = CASPER_LOCKED_FUNDS_PERIOD_MILLIS; + let round_seigniorage_rate = DEFAULT_ROUND_SEIGNIORAGE_RATE; + let unbonding_delay = DEFAULT_UNBONDING_DELAY; + let genesis_timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS; + ExecConfig::new( + accounts, + wasm_config, + system_config, + validator_slots, + auction_delay, + locked_funds_period_millis, + round_seigniorage_rate, + unbonding_delay, + genesis_timestamp_millis, + ) + }; + + RunGenesisRequest::new( + *DEFAULT_GENESIS_CONFIG_HASH, + *DEFAULT_PROTOCOL_VERSION, + exec_config, + DEFAULT_CHAINSPEC_REGISTRY.clone(), + ) + }; + + let mut builder = InMemoryWasmTestBuilder::new_with_config(engine_config); + + builder.run_genesis(&run_genesis_request); + + builder +} + #[ignore] #[test] fn should_add_new_bid() { @@ -187,11 +240,7 @@ fn should_add_new_bid() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let exec_request_1 = ExecuteRequestBuilder::standard( *BID_ACCOUNT_1_ADDR, @@ -231,11 +280,7 @@ fn should_increase_existing_bid() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let exec_request_1 = ExecuteRequestBuilder::standard( *BID_ACCOUNT_1_ADDR, @@ -290,11 +335,7 @@ fn should_decrease_existing_bid() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let bid_request = ExecuteRequestBuilder::standard( *BID_ACCOUNT_1_ADDR, @@ -358,11 +399,7 @@ fn should_run_delegate_and_undelegate() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let transfer_request_1 = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -538,11 +575,7 @@ fn should_calculate_era_validators() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let transfer_request_1 = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -600,7 +633,7 @@ fn should_calculate_era_validators() { assert_eq!(pre_era_id, EraId::from(0)); builder.run_auction( - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, + DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS, Vec::new(), ); @@ -696,29 +729,7 @@ fn should_get_first_seigniorage_recipients() { tmp }; - // We can't use `utils::create_run_genesis_request` as the snapshot used an auction delay of 3. - let auction_delay = 3; - let exec_config = ExecConfig::new( - accounts, - *DEFAULT_WASM_CONFIG, - *DEFAULT_SYSTEM_CONFIG, - DEFAULT_VALIDATOR_SLOTS, - auction_delay, - DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, - DEFAULT_ROUND_SEIGNIORAGE_RATE, - DEFAULT_UNBONDING_DELAY, - DEFAULT_GENESIS_TIMESTAMP_MILLIS, - ); - let run_genesis_request = RunGenesisRequest::new( - *DEFAULT_GENESIS_CONFIG_HASH, - *DEFAULT_PROTOCOL_VERSION, - exec_config, - DEFAULT_CHAINSPEC_REGISTRY.clone(), - ); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let transfer_request_1 = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -738,7 +749,7 @@ fn should_get_first_seigniorage_recipients() { founding_validator_1 .vesting_schedule() .map(|vesting_schedule| vesting_schedule.initial_release_timestamp_millis()), - Some(DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS) + Some(DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS) ); let founding_validator_2 = bids.get(&ACCOUNT_2_PK).expect("should have account 2 pk"); @@ -746,14 +757,14 @@ fn should_get_first_seigniorage_recipients() { founding_validator_2 .vesting_schedule() .map(|vesting_schedule| vesting_schedule.initial_release_timestamp_millis()), - Some(DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS) + Some(DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS) ); builder.exec(transfer_request_1).commit().expect_success(); // run_auction should be executed first builder.run_auction( - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, + DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS, Vec::new(), ); @@ -865,11 +876,7 @@ fn should_release_founder_stake() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let fund_system_account = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -995,11 +1002,7 @@ fn should_fail_to_get_era_validators() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); assert_eq!( builder.get_validator_weights(EraId::MAX), @@ -1026,11 +1029,7 @@ fn should_use_era_validators_endpoint_for_first_era() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let validator_weights = builder .get_validator_weights(INITIAL_ERA_ID) @@ -1084,11 +1083,7 @@ fn should_calculate_era_validators_multiple_new_bids() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let genesis_validator_weights = builder .get_validator_weights(INITIAL_ERA_ID) @@ -1155,7 +1150,7 @@ fn should_calculate_era_validators_multiple_new_bids() { // run auction and compute validators for new era builder.run_auction( - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, + DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS, Vec::new(), ); // Verify first era validators @@ -1252,12 +1247,9 @@ fn undelegated_funds_should_be_released() { delegator_1_validator_1_delegate_request, ]; - let mut timestamp_millis = - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS; + let mut timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).commit().expect_success(); @@ -1378,12 +1370,9 @@ fn fully_undelegated_funds_should_be_released() { delegator_1_validator_1_delegate_request, ]; - let mut timestamp_millis = - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS; - - let mut builder = InMemoryWasmTestBuilder::default(); + let mut timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).commit().expect_success(); @@ -1539,12 +1528,9 @@ fn should_undelegate_delegators_when_validator_unbonds() { validator_1_partial_withdraw_bid, ]; - let mut timestamp_millis = - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS; - - let mut builder = InMemoryWasmTestBuilder::default(); + let mut timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).commit().expect_success(); @@ -1776,12 +1762,9 @@ fn should_undelegate_delegators_when_validator_fully_unbonds() { delegator_2_delegate_request, ]; - let mut timestamp_millis = - DEFAULT_GENESIS_TIMESTAMP_MILLIS + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS; - - let mut builder = InMemoryWasmTestBuilder::default(); + let mut timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).commit().expect_success(); @@ -1962,11 +1945,7 @@ fn should_handle_evictions() { let mut timestamp = DEFAULT_GENESIS_TIMESTAMP_MILLIS; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); builder.exec(system_fund_request).commit().expect_success(); @@ -2105,11 +2084,7 @@ fn should_validate_orphaned_genesis_delegators() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let _builder = setup(accounts); } #[should_panic(expected = "DuplicatedDelegatorEntry")] @@ -2160,11 +2135,7 @@ fn should_validate_duplicated_genesis_delegators() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let _builder = setup(accounts); } #[should_panic(expected = "InvalidDelegationRate")] @@ -2185,11 +2156,7 @@ fn should_validate_delegation_rate_of_genesis_validator() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let _builder = setup(accounts); } #[should_panic(expected = "InvalidBondAmount")] @@ -2207,11 +2174,7 @@ fn should_validate_bond_amount_of_genesis_validator() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let _builder = setup(accounts); } #[ignore] @@ -2244,11 +2207,7 @@ fn should_setup_genesis_delegators() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let _account_1 = builder .get_account(*ACCOUNT_1_ADDR) @@ -2309,11 +2268,7 @@ fn should_not_partially_undelegate_uninitialized_vesting_schedule() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let fund_delegator_account = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -2383,11 +2338,7 @@ fn should_not_fully_undelegate_uninitialized_vesting_schedule() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let fund_delegator_account = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -2457,11 +2408,7 @@ fn should_not_undelegate_vfta_holder_stake() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let post_genesis_requests = { let fund_delegator_account = ExecuteRequestBuilder::standard( @@ -2558,7 +2505,6 @@ fn should_release_vfta_holder_stake() { (DELEGATOR_1_STAKE - DEFAULT_MINIMUM_DELEGATION_AMOUNT) / 14; const DELEGATOR_VFTA_STAKE: u64 = DELEGATOR_1_STAKE - DEFAULT_MINIMUM_DELEGATION_AMOUNT; const EXPECTED_REMAINDER: u64 = 12; - const NEW_MINIMUM_DELEGATION_AMOUNT: u64 = 0; const EXPECTED_LOCKED_AMOUNTS: [u64; 14] = [ 1392858, 1285716, 1178574, 1071432, 964290, 857148, 750006, 642864, 535722, 428580, 321438, 214296, 107154, 0, @@ -2642,25 +2588,7 @@ fn should_release_vfta_holder_stake() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let custom_engine_config = EngineConfig::new( - DEFAULT_MAX_QUERY_DEPTH, - DEFAULT_MAX_ASSOCIATED_KEYS, - DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, - NEW_MINIMUM_DELEGATION_AMOUNT, - DEFAULT_STRICT_ARGUMENT_CHECKING, - DEFAULT_VESTING_SCHEDULE_LENGTH_MILLIS, - None, - WasmConfig::default(), - SystemConfig::default(), - ); - - let global_state = InMemoryGlobalState::empty().expect("should create global state"); - - let mut builder = InMemoryWasmTestBuilder::new(global_state, custom_engine_config, None); - - builder.run_genesis(&run_genesis_request); + let mut builder = setup(accounts); let fund_delegator_account = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -2929,9 +2857,7 @@ fn should_reset_delegators_stake_after_slashing() { delegator_2_validator_2_delegate_request, ]; - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).expect_success().commit(); @@ -3080,11 +3006,7 @@ fn should_validate_genesis_delegators_bond_amount() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let _builder = setup(accounts); } fn check_validator_slots_for_accounts(accounts: usize) { @@ -3114,11 +3036,7 @@ fn check_validator_slots_for_accounts(accounts: usize) { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); - - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&run_genesis_request); + let _builder = setup(accounts); } #[should_panic(expected = "InvalidValidatorSlots")] @@ -3220,9 +3138,7 @@ fn should_delegate_and_redelegate() { delegator_1_validator_1_delegate_request, ]; - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).commit().expect_success(); @@ -3445,9 +3361,7 @@ fn should_handle_redelegation_to_inactive_validator() { delegator_2_validator_1_delegate_request, ]; - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); for request in post_genesis_requests { builder.exec(request).commit().expect_success(); @@ -4014,9 +3928,7 @@ fn should_transfer_to_main_purse_when_validator_is_no_longer_active() { #[ignore] #[test] fn should_enforce_minimum_delegation_amount() { - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); let transfer_to_validator_1 = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -4095,9 +4007,7 @@ fn should_enforce_minimum_delegation_amount() { #[ignore] #[test] fn should_allow_delegations_with_minimal_floor_amount() { - let mut builder = InMemoryWasmTestBuilder::default(); - - builder.run_genesis(&PRODUCTION_RUN_GENESIS_REQUEST); + let mut builder = setup(DEFAULT_ACCOUNTS.clone()); let transfer_to_validator_1 = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, diff --git a/resources/production/chainspec.toml b/resources/production/chainspec.toml index f645cd12c1..83b90dd297 100644 --- a/resources/production/chainspec.toml +++ b/resources/production/chainspec.toml @@ -48,9 +48,9 @@ legacy_required_finality = 'Strict' # you will be a validator in era N + auction_delay + 1. auction_delay = 1 # The period after genesis during which a genesis validator's bid is locked. -locked_funds_period = '90days' +locked_funds_period = '0 days' # The period in which genesis validator's bid is released over time after it's unlocked. -vesting_schedule_period = '13 weeks' +vesting_schedule_period = '0 weeks' # Default number of eras that need to pass to be able to withdraw unbonded funds. unbonding_delay = 7 # Round seigniorage rate represented as a fraction of the total supply. From 47ae9d472e49138563e8b3166e3afbe8b55b6c9f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 13 Mar 2023 17:26:46 +0100 Subject: [PATCH 440/735] Fix casper test failure. --- .../tests/src/test/regression/gov_116.rs | 99 +++++++++++++++++-- 1 file changed, 90 insertions(+), 9 deletions(-) diff --git a/execution_engine_testing/tests/src/test/regression/gov_116.rs b/execution_engine_testing/tests/src/test/regression/gov_116.rs index 8e3969e913..9d92bb7153 100644 --- a/execution_engine_testing/tests/src/test/regression/gov_116.rs +++ b/execution_engine_testing/tests/src/test/regression/gov_116.rs @@ -5,10 +5,18 @@ use once_cell::sync::Lazy; use casper_engine_test_support::{ utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, - DEFAULT_ACCOUNT_PUBLIC_KEY, DEFAULT_GENESIS_TIMESTAMP_MILLIS, - DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_VALIDATOR_SLOTS, MINIMUM_ACCOUNT_CREATION_BALANCE, + DEFAULT_ACCOUNT_PUBLIC_KEY, DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, + DEFAULT_GENESIS_CONFIG_HASH, DEFAULT_GENESIS_TIMESTAMP_MILLIS, + DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, DEFAULT_PROTOCOL_VERSION, + DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, + DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, +}; +use casper_execution_engine::core::engine_state::{ + engine_config::{DEFAULT_MINIMUM_DELEGATION_AMOUNT, DEFAULT_STRICT_ARGUMENT_CHECKING}, + genesis::GenesisValidator, + EngineConfig, ExecConfig, GenesisAccount, RunGenesisRequest, DEFAULT_MAX_QUERY_DEPTH, + DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, }; -use casper_execution_engine::core::engine_state::{genesis::GenesisValidator, GenesisAccount}; use casper_types::{ runtime_args, system::{ @@ -238,7 +246,73 @@ fn should_not_retain_genesis_validator_slot_protection_after_vesting_period_elap #[ignore] #[test] fn should_retain_genesis_validator_slot_protection() { - let mut builder = initialize_builder(); + const CASPER_VESTING_SCHEDULE_PERIOD_MILLIS: u64 = 91 * DAY_MILLIS; + const CASPER_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * DAY_MILLIS; + const CASPER_VESTING_BASE: u64 = + DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; + + let mut builder = { + let engine_config = EngineConfig::new( + DEFAULT_MAX_QUERY_DEPTH, + DEFAULT_MAX_ASSOCIATED_KEYS, + DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, + DEFAULT_MINIMUM_DELEGATION_AMOUNT, + DEFAULT_STRICT_ARGUMENT_CHECKING, + CASPER_VESTING_SCHEDULE_PERIOD_MILLIS, + None, + *DEFAULT_WASM_CONFIG, + *DEFAULT_SYSTEM_CONFIG, + ); + + let run_genesis_request = { + let accounts = GENESIS_ACCOUNTS.clone(); + let exec_config = { + let wasm_config = *DEFAULT_WASM_CONFIG; + let system_config = *DEFAULT_SYSTEM_CONFIG; + let validator_slots = DEFAULT_VALIDATOR_SLOTS; + let auction_delay = DEFAULT_AUCTION_DELAY; + let locked_funds_period_millis = CASPER_LOCKED_FUNDS_PERIOD_MILLIS; + let round_seigniorage_rate = DEFAULT_ROUND_SEIGNIORAGE_RATE; + let unbonding_delay = DEFAULT_UNBONDING_DELAY; + let genesis_timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS; + ExecConfig::new( + accounts, + wasm_config, + system_config, + validator_slots, + auction_delay, + locked_funds_period_millis, + round_seigniorage_rate, + unbonding_delay, + genesis_timestamp_millis, + ) + }; + + RunGenesisRequest::new( + *DEFAULT_GENESIS_CONFIG_HASH, + *DEFAULT_PROTOCOL_VERSION, + exec_config, + DEFAULT_CHAINSPEC_REGISTRY.clone(), + ) + }; + + let mut builder = InMemoryWasmTestBuilder::new_with_config(engine_config); + builder.run_genesis(&run_genesis_request); + + let fund_request = ExecuteRequestBuilder::transfer( + *DEFAULT_ACCOUNT_ADDR, + runtime_args! { + mint::ARG_TARGET => PublicKey::System.to_account_hash(), + mint::ARG_AMOUNT => U512::from(MINIMUM_ACCOUNT_CREATION_BALANCE), + mint::ARG_ID => >::None, + }, + ) + .build(); + + builder.exec(fund_request).expect_success().commit(); + + builder + }; let era_validators_1: EraValidators = builder.get_era_validators(); @@ -253,7 +327,7 @@ fn should_retain_genesis_validator_slot_protection() { "expected validator set should be unchanged" ); - builder.run_auction(VESTING_BASE, Vec::new()); + builder.run_auction(CASPER_VESTING_BASE, Vec::new()); let era_validators_2: EraValidators = builder.get_era_validators(); @@ -276,7 +350,7 @@ fn should_retain_genesis_validator_slot_protection() { builder.exec(add_bid_request).expect_success().commit(); - builder.run_auction(VESTING_BASE + WEEK_MILLIS, Vec::new()); + builder.run_auction(CASPER_VESTING_BASE + WEEK_MILLIS, Vec::new()); // All genesis validator slots are protected after ~1 week let era_validators_3: EraValidators = builder.get_era_validators(); @@ -286,7 +360,10 @@ fn should_retain_genesis_validator_slot_protection() { assert_eq!(next_validator_set_3, GENESIS_VALIDATOR_PUBLIC_KEYS.clone()); // After 13 weeks ~ 91 days lowest stake validator is dropped and replaced with higher bid - builder.run_auction(VESTING_BASE + VESTING_SCHEDULE_LENGTH_MILLIS, Vec::new()); + builder.run_auction( + CASPER_VESTING_BASE + VESTING_SCHEDULE_LENGTH_MILLIS, + Vec::new(), + ); let era_validators_4: EraValidators = builder.get_era_validators(); let (last_era_4, weights_4) = era_validators_4.iter().last().unwrap(); @@ -299,7 +376,11 @@ fn should_retain_genesis_validator_slot_protection() { pks }; assert_eq!( - next_validator_set_4, expected_validators, - "actual next validator set does not match expected validator set" + next_validator_set_4, + expected_validators, + "actual next validator set does not match expected validator set (diff {:?})", + expected_validators + .difference(&next_validator_set_4) + .collect::>(), ); } From 030a3138b95d9ab687269f0f87060641d08f3e0f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 13 Mar 2023 17:27:52 +0100 Subject: [PATCH 441/735] Update local chainspec with vesting schedules. --- resources/local/chainspec.toml.in | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/resources/local/chainspec.toml.in b/resources/local/chainspec.toml.in index 3875810cbe..d1600da1ae 100644 --- a/resources/local/chainspec.toml.in +++ b/resources/local/chainspec.toml.in @@ -48,9 +48,9 @@ legacy_required_finality = 'Strict' # you will be a validator in era N + auction_delay + 1. auction_delay = 1 # The period after genesis during which a genesis validator's bid is locked. -locked_funds_period = '90days' +locked_funds_period = '0 days' # The period in which genesis validator's bid is released over time after it's unlocked. -vesting_schedule_period = '13 weeks' +vesting_schedule_period = '0 weeks' # Default number of eras that need to pass to be able to withdraw unbonded funds. unbonding_delay = 7 # Round seigniorage rate represented as a fraction of the total supply. From 7c39b0517919778f1c5236942c5520ed780f9359 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 26 May 2023 15:10:49 +0200 Subject: [PATCH 442/735] Apply review comments --- execution_engine/src/storage/trie/mod.rs | 2 ++ .../src/storage/trie_store/operations/mod.rs | 8 ++++---- .../operations/{debug_store.rs => store_wrappers.rs} | 9 ++++----- 3 files changed, 10 insertions(+), 9 deletions(-) rename execution_engine/src/storage/trie_store/operations/{debug_store.rs => store_wrappers.rs} (75%) diff --git a/execution_engine/src/storage/trie/mod.rs b/execution_engine/src/storage/trie/mod.rs index bd88323140..e896a5c88f 100644 --- a/execution_engine/src/storage/trie/mod.rs +++ b/execution_engine/src/storage/trie/mod.rs @@ -596,6 +596,8 @@ where } fn write_bytes(&self, writer: &mut Vec) -> Result<(), bytesrepr::Error> { + // NOTE: When changing this make sure all partial deserializers that are referencing + // `LazyTrieLeaf` are also updated. writer.push(u8::from(self.tag())); match self { Trie::Leaf { key, value } => { diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 2749d4f674..3c7d35a630 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -1,4 +1,4 @@ -pub(crate) mod debug_store; +pub(crate) mod store_wrappers; #[cfg(test)] mod tests; @@ -26,7 +26,7 @@ use crate::{ }, }; -use self::debug_store::EnsureNeverDeserializes; +use self::store_wrappers::NonDeserializingStore; #[allow(clippy::enum_variant_names)] #[derive(Debug, PartialEq, Eq)] @@ -1038,7 +1038,7 @@ struct VisitedTrieNode { pub struct KeysIterator<'a, 'b, K, V, T, S: TrieStore> { initial_descend: VecDeque, visited: Vec>, - store: EnsureNeverDeserializes<'a, K, V, S>, //&'a S, + store: NonDeserializingStore<'a, K, V, S>, txn: &'b T, state: KeysIteratorState, } @@ -1222,7 +1222,7 @@ where S: TrieStore, S::Error: From, { - let store = debug_store::EnsureNeverDeserializes::new(store); + let store = store_wrappers::NonDeserializingStore::new(store); let (visited, init_state): (Vec>, _) = match store.get_raw(txn, root) { Ok(None) => (vec![], KeysIteratorState::Ok), Err(e) => (vec![], KeysIteratorState::ReturnError(e)), diff --git a/execution_engine/src/storage/trie_store/operations/debug_store.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs similarity index 75% rename from execution_engine/src/storage/trie_store/operations/debug_store.rs rename to execution_engine/src/storage/trie_store/operations/store_wrappers.rs index 84b58cfbfd..daf4b73178 100644 --- a/execution_engine/src/storage/trie_store/operations/debug_store.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -8,13 +8,12 @@ use crate::storage::{store::Store, trie::Trie, trie_store::TrieStore}; /// A [`TrieStore`] wrapper that panics in debug mode whenever an attempt to deserialize [`V`] is /// made, otherwise it behaves as a [`TrieStore`]. /// -/// The debug panic is used to ensure that this wrapper has To ensure this wrapper has zero -/// overhead, a debug assertion is used. -pub(crate) struct EnsureNeverDeserializes<'a, K, V, S>(&'a S, PhantomData<*const (K, V)>) +/// To ensure this wrapper has zero overhead, a debug assertion is used. +pub(crate) struct NonDeserializingStore<'a, K, V, S>(&'a S, PhantomData<*const (K, V)>) where S: TrieStore; -impl<'a, K, V, S> EnsureNeverDeserializes<'a, K, V, S> +impl<'a, K, V, S> NonDeserializingStore<'a, K, V, S> where S: TrieStore, { @@ -23,7 +22,7 @@ where } } -impl<'a, K, V, S> Store> for EnsureNeverDeserializes<'a, K, V, S> +impl<'a, K, V, S> Store> for NonDeserializingStore<'a, K, V, S> where S: TrieStore, { From 7572e6d3c7ebd82fa3c1ad7645233ae7c6d61ce7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Chabowski?= Date: Fri, 2 Jun 2023 12:17:27 +0200 Subject: [PATCH 443/735] Fix `PortBoundComponent` initialization --- node/src/components.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/components.rs b/node/src/components.rs index d9e0ff5074..17c0fbf08a 100644 --- a/node/src/components.rs +++ b/node/src/components.rs @@ -182,7 +182,7 @@ pub(crate) trait PortBoundComponent: InitializedComponent { } match self.listen(effect_builder) { - Ok(effects) => (effects, ComponentState::Initializing), + Ok(effects) => (effects, ComponentState::Initialized), Err(error) => (Effects::new(), ComponentState::Fatal(format!("{}", error))), } } From e698099407ce1de1b009084c335a8e2adea3ac5f Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Tue, 13 Jun 2023 12:39:18 +0000 Subject: [PATCH 444/735] ee/trie_store: use NonDeserializingStore in `scan_raw` Signed-off-by: Alexandru Sardan --- execution_engine/src/storage/trie_store/operations/mod.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 83e6df056c..cade73c2d3 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -328,6 +328,7 @@ where let mut depth: usize = 0; let mut acc: Parents = Vec::new(); + let store = store_wrappers::NonDeserializingStore::new(store); loop { let maybe_trie_leaf = trie::lazy_trie_deserialize(current)?; current_trie = match maybe_trie_leaf { @@ -889,17 +890,16 @@ where S::Error: From, E: From + From, { - match store.get(txn, root)? { + match store.get_raw(txn, root)? { None => Ok(WriteResult::RootNotFound), - Some(current_root) => { + Some(current_root_bytes) => { let new_leaf = Trie::Leaf { key: key.to_owned(), value: value.to_owned(), }; - let current_root_bytes = current_root.to_bytes()?; let path: Vec = key.to_bytes()?; let TrieScanRaw { tip, parents } = - scan_raw::(txn, store, &path, current_root_bytes.into())?; + scan_raw::(txn, store, &path, current_root_bytes)?; let new_elements: Vec<(Digest, Trie)> = match tip { LazyTrieLeaf::Left(leaf_bytes) => { let trie_tag = trie::lazy_trie_tag(leaf_bytes.as_slice()); From 11edecc4e6920a74f0bf5a0da3ba01311eb194fa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Tue, 9 May 2023 11:32:18 +0200 Subject: [PATCH 445/735] Update wasmi to 0.13.2 This wasmi version deprecates allocating `MemoryInstance::get` that always allocates and copies data back and forth between VM linear memory and the heap on the host. With this commit host does not allocate data, but is deserializing data straight from a linear memory without allocating. Copies are made only when absolutely necessary. --- Cargo.lock | 93 +++++------- execution_engine/Cargo.toml | 7 +- execution_engine/src/core/runtime/args.rs | 134 +++++++++--------- .../src/core/runtime/externals.rs | 28 ++-- execution_engine/src/core/runtime/mod.rs | 125 ++++++++++------ 5 files changed, 205 insertions(+), 182 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index b32da12bb2..4039194c35 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -380,7 +380,7 @@ dependencies = [ "humantime", "lmdb-rkv", "log", - "num-rational 0.4.1", + "num-rational", "num-traits", "once_cell", "rand 0.8.5", @@ -409,7 +409,7 @@ dependencies = [ "gh-1470-regression", "gh-1470-regression-call", "log", - "num-rational 0.4.1", + "num-rational", "num-traits", "once_cell", "parity-wasm 0.41.0", @@ -448,11 +448,11 @@ dependencies = [ "log", "num", "num-derive", - "num-rational 0.4.1", + "num-rational", "num-traits", "num_cpus", "once_cell", - "parity-wasm 0.42.2", + "parity-wasm 0.45.0", "proptest", "rand 0.8.5", "rand_chacha 0.3.1", @@ -468,6 +468,7 @@ dependencies = [ "uuid", "walrus", "wasmi", + "wasmi-validation", ] [[package]] @@ -556,7 +557,7 @@ dependencies = [ "muxink", "num", "num-derive", - "num-rational 0.4.1", + "num-rational", "num-traits", "num_cpus", "once_cell", @@ -624,7 +625,7 @@ dependencies = [ "num", "num-derive", "num-integer", - "num-rational 0.4.1", + "num-rational", "num-traits", "rand 0.8.5", "serde", @@ -654,7 +655,7 @@ dependencies = [ "num", "num-derive", "num-integer", - "num-rational 0.4.1", + "num-rational", "num-traits", "once_cell", "openssl", @@ -704,13 +705,13 @@ dependencies = [ [[package]] name = "casper-wasm-utils" -version = "1.0.0" +version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8e9c4208106e8a95a83ab3cb5f4e800114bfc101df9e7cb8c2160c7e298c6397" +checksum = "13cd18418b19bc2cbd2bc724cc9050055848e734182e861af43e130a0d442291" dependencies = [ "byteorder", "log", - "parity-wasm 0.42.2", + "parity-wasm 0.45.0", ] [[package]] @@ -2681,12 +2682,6 @@ dependencies = [ "autocfg", ] -[[package]] -name = "memory_units" -version = "0.3.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "71d96e3f3c0b6325d8ccd83c33b28acb183edcb6c67938ba104ec546854b0882" - [[package]] name = "memory_units" version = "0.4.0" @@ -2863,22 +2858,11 @@ version = "0.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "43db66d1170d347f9a065114077f7dccb00c1b9478c89384490a3425279a4606" dependencies = [ - "num-bigint 0.4.3", + "num-bigint", "num-complex", "num-integer", "num-iter", - "num-rational 0.4.1", - "num-traits", -] - -[[package]] -name = "num-bigint" -version = "0.2.6" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "090c7f9998ee0ff65aa5b723e4009f7b217707f1fb5ea551329cc4d6231fb304" -dependencies = [ - "autocfg", - "num-integer", + "num-rational", "num-traits", ] @@ -2934,18 +2918,6 @@ dependencies = [ "num-traits", ] -[[package]] -name = "num-rational" -version = "0.2.4" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5c000134b5dbf44adc5cb772486d335293351644b801551abe8f75c84cfa4aef" -dependencies = [ - "autocfg", - "num-bigint 0.2.6", - "num-integer", - "num-traits", -] - [[package]] name = "num-rational" version = "0.4.1" @@ -2953,7 +2925,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0" dependencies = [ "autocfg", - "num-bigint 0.4.3", + "num-bigint", "num-integer", "num-traits", "serde", @@ -3105,9 +3077,9 @@ checksum = "ddfc878dac00da22f8f61e7af3157988424567ab01d9920b962ef7dcbd7cd865" [[package]] name = "parity-wasm" -version = "0.42.2" +version = "0.45.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "be5e13c266502aadf83426d87d81a0f5d1ef45b8027f5a471c360abfe4bfae92" +checksum = "e1ad0aff30c1da14b1254fcb2af73e1fa9a28670e584a626f53a369d0e157304" [[package]] name = "parking_lot" @@ -5321,26 +5293,35 @@ dependencies = [ [[package]] name = "wasmi" -version = "0.9.1" +version = "0.13.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ca00c5147c319a8ec91ec1a0edbec31e566ce2c9cc93b3f9bb86a9efd0eb795d" +checksum = "06c326c93fbf86419608361a2c925a31754cf109da1b8b55737070b4d6669422" dependencies = [ - "downcast-rs", - "libc", - "memory_units 0.3.0", - "num-rational 0.2.4", - "num-traits", - "parity-wasm 0.42.2", + "parity-wasm 0.45.0", "wasmi-validation", + "wasmi_core", ] [[package]] name = "wasmi-validation" -version = "0.4.1" +version = "0.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "165343ecd6c018fc09ebcae280752702c9a2ef3e6f8d02f1cfcbdb53ef6d7937" +checksum = "91ff416ad1ff0c42e5a926ed5d5fab74c0f098749aa0ad8b2a34b982ce0e867b" dependencies = [ - "parity-wasm 0.42.2", + "parity-wasm 0.45.0", +] + +[[package]] +name = "wasmi_core" +version = "0.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "57d20cb3c59b788653d99541c646c561c9dd26506f25c0cebfe810659c54c6d7" +dependencies = [ + "downcast-rs", + "libm", + "memory_units", + "num-rational", + "num-traits", ] [[package]] @@ -5388,7 +5369,7 @@ checksum = "dbb3b5a6b2bb17cb6ad44a2e68a43e8d2722c997da10e928665c72ec6c0a0b8e" dependencies = [ "cfg-if 0.1.10", "libc", - "memory_units 0.4.0", + "memory_units", "winapi", ] diff --git a/execution_engine/Cargo.toml b/execution_engine/Cargo.toml index 074d20d362..253136bc92 100644 --- a/execution_engine/Cargo.toml +++ b/execution_engine/Cargo.toml @@ -16,7 +16,7 @@ base16 = "0.2.1" bincode = "1.3.1" casper-hashing = { version = "1.4.4", path = "../hashing" } casper-types = { version = "2.0.0", path = "../types", default-features = false, features = ["datasize", "gens", "json-schema"] } -casper-wasm-utils = "1.0.0" +casper-wasm-utils = "1.1.0" datasize = "0.2.4" either = "1.8.1" hex_fmt = "0.3.0" @@ -34,7 +34,7 @@ num-rational = { version = "0.4.0", features = ["serde"] } num-traits = "0.2.10" num_cpus = "1" once_cell = "1.5.2" -parity-wasm = { version = "0.42", default-features = false } +parity-wasm = { version = "0.45.0", default-features = false } proptest = { version = "1.0.0", optional = true } rand = "0.8.3" rand_chacha = "0.3.0" @@ -47,7 +47,8 @@ thiserror = "1.0.18" tracing = "0.1.18" uint = "0.9.0" uuid = { version = "0.8.1", features = ["serde", "v4"] } -wasmi = "0.9.1" +wasmi = "0.13.2" +wasmi-validation = "0.5.0" [dev-dependencies] assert_matches = "1.3.0" diff --git a/execution_engine/src/core/runtime/args.rs b/execution_engine/src/core/runtime/args.rs index 988890adb9..17af96a8c0 100644 --- a/execution_engine/src/core/runtime/args.rs +++ b/execution_engine/src/core/runtime/args.rs @@ -1,4 +1,4 @@ -use wasmi::{FromRuntimeValue, RuntimeArgs, Trap}; +use wasmi::{FromValue, RuntimeArgs, Trap}; pub(crate) trait Args where @@ -9,7 +9,7 @@ where impl Args for (T1,) where - T1: FromRuntimeValue + Sized, + T1: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -19,8 +19,8 @@ where impl Args for (T1, T2) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -31,9 +31,9 @@ where impl Args for (T1, T2, T3) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -45,10 +45,10 @@ where impl Args for (T1, T2, T3, T4) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -61,11 +61,11 @@ where impl Args for (T1, T2, T3, T4, T5) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -79,12 +79,12 @@ where impl Args for (T1, T2, T3, T4, T5, T6) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, - T6: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, + T6: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -99,13 +99,13 @@ where impl Args for (T1, T2, T3, T4, T5, T6, T7) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, - T6: FromRuntimeValue + Sized, - T7: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, + T6: FromValue + Sized, + T7: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -121,14 +121,14 @@ where impl Args for (T1, T2, T3, T4, T5, T6, T7, T8) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, - T6: FromRuntimeValue + Sized, - T7: FromRuntimeValue + Sized, - T8: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, + T6: FromValue + Sized, + T7: FromValue + Sized, + T8: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -145,15 +145,15 @@ where impl Args for (T1, T2, T3, T4, T5, T6, T7, T8, T9) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, - T6: FromRuntimeValue + Sized, - T7: FromRuntimeValue + Sized, - T8: FromRuntimeValue + Sized, - T9: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, + T6: FromValue + Sized, + T7: FromValue + Sized, + T8: FromValue + Sized, + T9: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -171,16 +171,16 @@ where impl Args for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, - T6: FromRuntimeValue + Sized, - T7: FromRuntimeValue + Sized, - T8: FromRuntimeValue + Sized, - T9: FromRuntimeValue + Sized, - T10: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, + T6: FromValue + Sized, + T7: FromValue + Sized, + T8: FromValue + Sized, + T9: FromValue + Sized, + T10: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; @@ -200,17 +200,17 @@ where impl Args for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where - T1: FromRuntimeValue + Sized, - T2: FromRuntimeValue + Sized, - T3: FromRuntimeValue + Sized, - T4: FromRuntimeValue + Sized, - T5: FromRuntimeValue + Sized, - T6: FromRuntimeValue + Sized, - T7: FromRuntimeValue + Sized, - T8: FromRuntimeValue + Sized, - T9: FromRuntimeValue + Sized, - T10: FromRuntimeValue + Sized, - T11: FromRuntimeValue + Sized, + T1: FromValue + Sized, + T2: FromValue + Sized, + T3: FromValue + Sized, + T4: FromValue + Sized, + T5: FromValue + Sized, + T6: FromValue + Sized, + T7: FromValue + Sized, + T8: FromValue + Sized, + T9: FromValue + Sized, + T10: FromValue + Sized, + T11: FromValue + Sized, { fn parse(args: RuntimeArgs) -> Result { let a0: T1 = args.nth_checked(0)?; diff --git a/execution_engine/src/core/runtime/externals.rs b/execution_engine/src/core/runtime/externals.rs index 570246502e..369883fa6a 100644 --- a/execution_engine/src/core/runtime/externals.rs +++ b/execution_engine/src/core/runtime/externals.rs @@ -320,15 +320,15 @@ where )?; let account_hash: AccountHash = { let bytes = self.bytes_from_mem(key_ptr, key_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let amount: U512 = { let bytes = self.bytes_from_mem(amount_ptr, amount_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let id: Option = { let bytes = self.bytes_from_mem(id_ptr, id_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let ret = match self.transfer_to_account(account_hash, amount, id)? { @@ -382,19 +382,19 @@ where )?; let source_purse = { let bytes = self.bytes_from_mem(source_ptr, source_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let account_hash: AccountHash = { let bytes = self.bytes_from_mem(key_ptr, key_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let amount: U512 = { let bytes = self.bytes_from_mem(amount_ptr, amount_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let id: Option = { let bytes = self.bytes_from_mem(id_ptr, id_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let ret = match self.transfer_from_purse_to_account( source_purse, @@ -695,13 +695,13 @@ where self.t_from_mem(entry_point_name_ptr, entry_point_name_size)?; let args_bytes: Vec = { let args_size: u32 = args_size; - self.bytes_from_mem(args_ptr, args_size as usize)? + self.bytes_from_mem(args_ptr, args_size as usize)?.to_vec() }; let ret = self.call_contract_host_buffer( contract_hash, &entry_point_name, - args_bytes, + &args_bytes, result_size_ptr, )?; Ok(Some(RuntimeValue::I32(api_error::i32_from(ret)))) @@ -751,14 +751,14 @@ where self.t_from_mem(entry_point_name_ptr, entry_point_name_size)?; let args_bytes: Vec = { let args_size: u32 = args_size; - self.bytes_from_mem(args_ptr, args_size as usize)? + self.bytes_from_mem(args_ptr, args_size as usize)?.to_vec() }; let ret = self.call_versioned_contract_host_buffer( contract_package_hash, contract_version, entry_point_name, - args_bytes, + &args_bytes, result_size_ptr, )?; Ok(Some(RuntimeValue::I32(api_error::i32_from(ret)))) @@ -882,8 +882,10 @@ where &host_function_costs.blake2b, [in_ptr, in_size, out_ptr, out_size], )?; - let input: Vec = self.bytes_from_mem(in_ptr, in_size as usize)?; - let digest = crypto::blake2b(input); + let digest = + self.checked_memory_slice(in_ptr as usize, in_size as usize, |input| { + crypto::blake2b(input) + })?; let result = if digest.len() != out_size as usize { Err(ApiError::BufferTooSmall) diff --git a/execution_engine/src/core/runtime/mod.rs b/execution_engine/src/core/runtime/mod.rs index 3486ed88c0..f9c1edc655 100644 --- a/execution_engine/src/core/runtime/mod.rs +++ b/execution_engine/src/core/runtime/mod.rs @@ -18,7 +18,7 @@ use std::{ use parity_wasm::elements::Module; use tracing::error; -use wasmi::{MemoryRef, Trap, TrapKind}; +use wasmi::{MemoryRef, Trap, TrapCode}; use casper_types::{ account::{Account, AccountHash, ActionType, Weight}, @@ -190,37 +190,76 @@ where self.context.charge_system_contract_call(amount) } + fn checked_memory_slice( + &self, + offset: usize, + size: usize, + func: impl FnOnce(&[u8]) -> Ret, + ) -> Result { + // This is mostly copied from a private function `MemoryInstance::checked_memory_region` + // that calls a user defined function with a validated slice of memory. This allows + // usage patterns that does not involve copying data onto heap first i.e. deserialize + // values without copying data first, etc. + // NOTE: Depending on the VM backend used in future, this may change, as not all VMs may + // support direct memory access. + self.try_get_memory()? + .with_direct_access(|buffer| { + let end = offset.checked_add(size).ok_or_else(|| { + wasmi::Error::Memory(format!( + "trying to access memory block of size {} from offset {}", + size, offset + )) + })?; + + if end > buffer.len() { + return Err(wasmi::Error::Memory(format!( + "trying to access region [{}..{}] in memory [0..{}]", + offset, + end, + buffer.len(), + ))); + } + + Ok(func(&buffer[offset..end])) + }) + .map_err(Into::into) + } + /// Returns bytes from the WASM memory instance. + #[inline] fn bytes_from_mem(&self, ptr: u32, size: usize) -> Result, Error> { - self.try_get_memory()?.get(ptr, size).map_err(Into::into) + self.checked_memory_slice(ptr as usize, size, |data| data.to_vec()) } /// Returns a deserialized type from the WASM memory instance. + #[inline] fn t_from_mem(&self, ptr: u32, size: u32) -> Result { - let bytes = self.bytes_from_mem(ptr, size as usize)?; - bytesrepr::deserialize(bytes).map_err(Into::into) + let result = self.checked_memory_slice(ptr as usize, size as usize, |data| { + bytesrepr::deserialize_from_slice(data) + })?; + Ok(result?) } /// Reads key (defined as `key_ptr` and `key_size` tuple) from Wasm memory. + #[inline] fn key_from_mem(&mut self, key_ptr: u32, key_size: u32) -> Result { - let bytes = self.bytes_from_mem(key_ptr, key_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Into::into) + self.t_from_mem(key_ptr, key_size) } /// Reads `CLValue` (defined as `cl_value_ptr` and `cl_value_size` tuple) from Wasm memory. + #[inline] fn cl_value_from_mem( &mut self, cl_value_ptr: u32, cl_value_size: u32, ) -> Result { - let bytes = self.bytes_from_mem(cl_value_ptr, cl_value_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Into::into) + self.t_from_mem(cl_value_ptr, cl_value_size) } /// Returns a deserialized string from the WASM memory instance. + #[inline] fn string_from_mem(&self, ptr: u32, size: u32) -> Result { - let bytes = self.bytes_from_mem(ptr, size as usize)?; - bytesrepr::deserialize(bytes).map_err(|e| Error::BytesRepr(e).into()) + self.t_from_mem(ptr, size).map_err(Trap::from) } fn get_module_from_entry_points( @@ -235,8 +274,7 @@ where #[allow(clippy::wrong_self_convention)] fn is_valid_uref(&self, uref_ptr: u32, uref_size: u32) -> Result { - let bytes = self.bytes_from_mem(uref_ptr, uref_size as usize)?; - let uref: URef = bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)?; + let uref: URef = self.t_from_mem(uref_ptr, uref_size)?; Ok(self.context.validate_uref(&uref).is_ok()) } @@ -444,18 +482,15 @@ where /// type is `Trap`, indicating that this function will always kill the current Wasm instance. fn ret(&mut self, value_ptr: u32, value_size: usize) -> Trap { self.host_buffer = None; - let memory = match self.try_get_memory() { - Ok(memory) => memory, - Err(error) => return Trap::from(error), - }; - let mem_get = memory - .get(value_ptr, value_size) - .map_err(|e| Error::Interpreter(e.into())); + + let mem_get = + self.checked_memory_slice(value_ptr as usize, value_size, |data| data.to_vec()); + match mem_get { Ok(buf) => { // Set the result field in the runtime and return the proper element of the `Error` // enum indicating that the reason for exiting the module was a call to ret. - self.host_buffer = bytesrepr::deserialize(buf).ok(); + self.host_buffer = bytesrepr::deserialize_from_slice(buf).ok(); let urefs = match &self.host_buffer { Some(buf) => utils::extract_urefs(buf), @@ -1416,14 +1451,14 @@ where &mut self, contract_hash: ContractHash, entry_point_name: &str, - args_bytes: Vec, + args_bytes: &[u8], result_size_ptr: u32, ) -> Result, Error> { // Exit early if the host buffer is already occupied if let Err(err) = self.check_host_buffer() { return Ok(Err(err)); } - let args: RuntimeArgs = bytesrepr::deserialize(args_bytes)?; + let args: RuntimeArgs = bytesrepr::deserialize_from_slice(args_bytes)?; let result = self.call_contract(contract_hash, entry_point_name, args)?; self.manage_call_contract_host_buffer(result_size_ptr, result) } @@ -1433,14 +1468,14 @@ where contract_package_hash: ContractPackageHash, contract_version: Option, entry_point_name: String, - args_bytes: Vec, + args_bytes: &[u8], result_size_ptr: u32, ) -> Result, Error> { // Exit early if the host buffer is already occupied if let Err(err) = self.check_host_buffer() { return Ok(Err(err)); } - let args: RuntimeArgs = bytesrepr::deserialize(args_bytes)?; + let args: RuntimeArgs = bytesrepr::deserialize_from_slice(args_bytes)?; let result = self.call_versioned_contract( contract_package_hash, contract_version, @@ -1912,7 +1947,7 @@ where let source_serialized = self.bytes_from_mem(account_hash_ptr, account_hash_size)?; // Account hash deserialized let source: AccountHash = - bytesrepr::deserialize(source_serialized).map_err(Error::BytesRepr)?; + bytesrepr::deserialize_from_slice(source_serialized).map_err(Error::BytesRepr)?; source }; let weight = Weight::new(weight_value); @@ -1939,7 +1974,7 @@ where let source_serialized = self.bytes_from_mem(account_hash_ptr, account_hash_size)?; // Account hash deserialized let source: AccountHash = - bytesrepr::deserialize(source_serialized).map_err(Error::BytesRepr)?; + bytesrepr::deserialize_from_slice(source_serialized).map_err(Error::BytesRepr)?; source }; match self.context.remove_associated_key(account_hash) { @@ -1960,7 +1995,7 @@ where let source_serialized = self.bytes_from_mem(account_hash_ptr, account_hash_size)?; // Account hash deserialized let source: AccountHash = - bytesrepr::deserialize(source_serialized).map_err(Error::BytesRepr)?; + bytesrepr::deserialize_from_slice(source_serialized).map_err(Error::BytesRepr)?; source }; let weight = Weight::new(weight_value); @@ -1991,7 +2026,7 @@ where Err(e) => Err(e.into()), } } - Err(_) => Err(Trap::new(TrapKind::Unreachable)), + Err(_) => Err(Trap::Code(TrapCode::Unreachable)), } } @@ -2280,22 +2315,22 @@ where ) -> Result, Error> { let source: URef = { let bytes = self.bytes_from_mem(source_ptr, source_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let target: URef = { let bytes = self.bytes_from_mem(target_ptr, target_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let amount: U512 = { let bytes = self.bytes_from_mem(amount_ptr, amount_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; let id: Option = { let bytes = self.bytes_from_mem(id_ptr, id_size as usize)?; - bytesrepr::deserialize(bytes).map_err(Error::BytesRepr)? + bytesrepr::deserialize_from_slice(bytes).map_err(Error::BytesRepr)? }; self.context.validate_uref(&source)?; @@ -2333,7 +2368,7 @@ where let purse: URef = { let bytes = self.bytes_from_mem(purse_ptr, purse_size)?; - match bytesrepr::deserialize(bytes) { + match bytesrepr::deserialize_from_slice(bytes) { Ok(purse) => purse, Err(error) => return Ok(Err(error.into())), } @@ -2744,13 +2779,13 @@ where } let uref: URef = self.t_from_mem(uref_ptr, uref_size)?; - let dictionary_item_key_bytes = self.bytes_from_mem( - dictionary_item_key_bytes_ptr, + let dictionary_item_key = self.checked_memory_slice( + dictionary_item_key_bytes_ptr as usize, dictionary_item_key_bytes_size as usize, + |utf8_bytes| std::str::from_utf8(utf8_bytes).map(ToOwned::to_owned), )?; - let dictionary_item_key = if let Ok(item_key) = String::from_utf8(dictionary_item_key_bytes) - { + let dictionary_item_key = if let Ok(item_key) = dictionary_item_key { item_key } else { return Ok(Err(ApiError::InvalidDictionaryItemKey)); @@ -2824,12 +2859,16 @@ where value_size: u32, ) -> Result, Trap> { let uref: URef = self.t_from_mem(uref_ptr, uref_size)?; - let dictionary_item_key_bytes = self.bytes_from_mem(key_ptr, key_size as usize)?; - if dictionary_item_key_bytes.len() > DICTIONARY_ITEM_KEY_MAX_LENGTH { - return Ok(Err(ApiError::DictionaryItemKeyExceedsLength)); - } - let dictionary_item_key = if let Ok(item_key) = String::from_utf8(dictionary_item_key_bytes) - { + let dictionary_item_key_bytes = { + if (key_size as usize) > DICTIONARY_ITEM_KEY_MAX_LENGTH { + return Ok(Err(ApiError::DictionaryItemKeyExceedsLength)); + } + self.checked_memory_slice(key_ptr as usize, key_size as usize, |data| { + std::str::from_utf8(data).map(ToOwned::to_owned) + })? + }; + + let dictionary_item_key = if let Ok(item_key) = dictionary_item_key_bytes { item_key } else { return Ok(Err(ApiError::InvalidDictionaryItemKey)); From 4a4a07a96d8b4884f84dbf2896d2b7785eea15f6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Jun 2023 17:06:53 +0200 Subject: [PATCH 446/735] juliet: Fix some of the obvious bugs in `RequestState` handling --- juliet/src/reader.rs | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 64dd85dfc2..58c2194d29 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -52,7 +52,7 @@ impl RequestState { match self { RequestState::Ready => { // We have a new segment, which has a variable size. - let segment_buf = &buffer[0..Header::SIZE]; + let segment_buf = &buffer[Header::SIZE..]; match decode_varint32(segment_buf) { Varint32Result::Incomplete => return Incomplete(1), @@ -61,12 +61,26 @@ impl RequestState { offset, value: total_payload_size, } => { - // We have a valid varint32. Let's see if we're inside the frame boundary. + // We have a valid varint32. let preamble_size = Header::SIZE as u32 + offset.get() as u32; let max_data_in_frame = (max_frame_size - preamble_size) as u32; - // Drop header and length. + // Determine how many additional bytes are needed for frame completion. + let frame_ends_at = (preamble_size as usize + + (max_data_in_frame as usize).min(total_payload_size as usize)); + if buffer.remaining() < frame_ends_at { + return Incomplete(buffer.remaining() - frame_ends_at); + } + + // At this point we are sure to complete a frame, so drop the preamble. buffer.advance(preamble_size as usize); + + // Pure defensive coding: Drop all now-invalid offsets. + // TODO: Consider wild idea of `AssumeUnchanged`. + drop(frame_ends_at); + drop(preamble_size); + + // Is the payload complete in one frame? if total_payload_size <= max_data_in_frame { let payload = buffer.split_to(total_payload_size as usize); @@ -75,9 +89,9 @@ impl RequestState { } // The length exceeds the frame boundary, split to maximum and store that. - let partial_payload = - buffer.split_to((max_frame_size - preamble_size) as usize); + let partial_payload = buffer.split_to(max_frame_size as usize); + // We are now in progress of reading a payload. *self = RequestState::InProgress { header, payload: partial_payload, From 3292780c6973fb3c80f1238ed886271f7dde0d54 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 13 Jun 2023 18:02:36 +0200 Subject: [PATCH 447/735] juliet: Complete API design of `RequestState::accept` --- juliet/src/reader.rs | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 58c2194d29..b3d98ca952 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -36,6 +36,10 @@ enum RequestState { impl RequestState { /// Accept additional data to be written. /// + /// If a message payload matching the given header has been succesfully completed, returns it. + /// If a starting or intermediate segment was processed without completing the message, returns + /// `None` instead. This method will never consume more than one frame. + /// /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` /// past header and payload only on success. fn accept( @@ -43,7 +47,7 @@ impl RequestState { header: Header, buffer: &mut BytesMut, max_frame_size: u32, - ) -> Outcome { + ) -> Outcome> { debug_assert!( max_frame_size >= 10, "maximum frame size must be enough to hold header and varint" @@ -85,27 +89,26 @@ impl RequestState { let payload = buffer.split_to(total_payload_size as usize); // No need to alter the state, we stay `Ready`. - return Success(payload); + Success(Some(payload)) + } else { + // Length exceeds the frame boundary, split to maximum and store that. + let partial_payload = buffer.split_to(max_frame_size as usize); + + // We are now in progress of reading a payload. + *self = RequestState::InProgress { + header, + payload: partial_payload, + }; + + // We have successfully consumed a frame, but are not finished yet. + Success(None) } - - // The length exceeds the frame boundary, split to maximum and store that. - let partial_payload = buffer.split_to(max_frame_size as usize); - - // We are now in progress of reading a payload. - *self = RequestState::InProgress { - header, - payload: partial_payload, - }; - - // TODO: THIS IS WRONG. LOOP READING. AND CONSIDER ACTUAL BUFFER LENGTH - // ABOVE. We need at least a header to proceed further on. - return Incomplete(Header::SIZE); } } - + } + RequestState::InProgress { header, payload } => { todo!() } - RequestState::InProgress { header, payload } => todo!(), } } } From c2d18abc9796331d9bad681e2f94c57490cd70fb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 14 Jun 2023 14:54:39 +0200 Subject: [PATCH 448/735] juliet: Complete first implementation of multi-frame message reading state machine --- juliet/src/header.rs | 29 +++++++++++++++++++ juliet/src/reader.rs | 69 ++++++++++++++++++++++++++++++++++++++++---- 2 files changed, 92 insertions(+), 6 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 59ca687653..3df48918eb 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -164,6 +164,16 @@ impl Header { self.0[0] } + /// Returns the kind byte with all reserved bits zero'd. + #[inline(always)] + pub(crate) fn kind_byte_without_reserved(self) -> u8 { + if self.is_error() { + self.kind_byte() & (Self::KIND_ERR_BIT | Self::KIND_ERR_MASK) + } else { + self.kind_byte() & (Self::KIND_ERR_BIT | Self::KIND_MASK) + } + } + /// Returns the channel. #[inline(always)] pub(crate) fn channel(self) -> ChannelId { @@ -284,6 +294,25 @@ mod tests { assert_eq!(<[u8; Header::SIZE]>::from(expected), input); } + #[test] + fn kind_byte_without_reserved_zeros_reserved() { + let input_err = [0b1111_1000, 0xFF, 0xFF, 0xFF]; + assert_eq!( + Header::parse(input_err) + .expect("could not parse header") + .kind_byte_without_reserved(), + 0b1000_1000 + ); + + let input_ok = [0b0111_0100, 0xFF, 0xFF, 0xFF]; + assert_eq!( + Header::parse(input_ok) + .expect("could not parse header") + .kind_byte_without_reserved(), + 0b0000_0100 + ); + } + #[proptest] fn roundtrip_valid_headers(header: Header) { let raw: [u8; Header::SIZE] = header.into(); diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index b3d98ca952..491c035673 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,4 +1,4 @@ -use std::collections::HashSet; +use std::{collections::HashSet, mem}; use bytes::{Buf, Bytes, BytesMut}; @@ -30,7 +30,11 @@ struct Channel { #[derive(Debug)] enum RequestState { Ready, - InProgress { header: Header, payload: BytesMut }, + InProgress { + header: Header, + payload: BytesMut, + total_payload_size: u32, + }, } impl RequestState { @@ -80,7 +84,7 @@ impl RequestState { buffer.advance(preamble_size as usize); // Pure defensive coding: Drop all now-invalid offsets. - // TODO: Consider wild idea of `AssumeUnchanged`. + // TODO: This has no effect, replace with https://compilersaysno.com/posts/owning-your-invariants/ drop(frame_ends_at); drop(preamble_size); @@ -98,6 +102,7 @@ impl RequestState { *self = RequestState::InProgress { header, payload: partial_payload, + total_payload_size, }; // We have successfully consumed a frame, but are not finished yet. @@ -106,8 +111,57 @@ impl RequestState { } } } - RequestState::InProgress { header, payload } => { - todo!() + RequestState::InProgress { + header: active_header, + payload, + total_payload_size, + } => { + if header.kind_byte_without_reserved() != active_header.kind_byte_without_reserved() + { + // The newly supplied header does not match the one active. + return header.return_err(ErrorKind::InProgress); + } + + // Determine whether we expect an intermediate or end segment. + let bytes_remaining = *total_payload_size as usize - payload.remaining(); + let max_data_in_frame = (max_frame_size as usize - Header::SIZE); + + if bytes_remaining > max_data_in_frame { + // Intermediate segment. + if buffer.remaining() < max_frame_size as usize { + return Incomplete(max_frame_size as usize - buffer.remaining()); + } + + // Discard header. + buffer.advance(Header::SIZE); + + // Copy data over to internal buffer. + payload.extend_from_slice(&buffer[0..max_data_in_frame]); + buffer.advance(max_data_in_frame); + + // We're done with this frame (but not the payload). + Success(None) + } else { + // End segment + let frame_end = bytes_remaining + Header::SIZE; + + // If we don't have the entire frame read yet, return. + if frame_end > buffer.remaining() { + return Incomplete(frame_end - buffer.remaining()); + } + + // Discard header. + buffer.advance(Header::SIZE); + + // Copy data over to internal buffer. + payload.extend_from_slice(&buffer[0..bytes_remaining]); + buffer.advance(bytes_remaining); + + let finished_payload = mem::take(payload); + *self = RequestState::Ready; + + Success(Some(finished_payload)) + } } } } @@ -250,7 +304,10 @@ impl State { } } } - RequestState::InProgress { header } => { + RequestState::InProgress { + header, + ref mut payload, + } => { todo!() } }, From ad1374a53c17bbfd8a4e433eecdeb0ed5867b1eb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 14 Jun 2023 15:46:25 +0200 Subject: [PATCH 449/735] juliet: Improve defensive coding in reader offsets --- juliet/src/reader.rs | 49 +++++++++++++++++++++++++++++++------------- 1 file changed, 35 insertions(+), 14 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 491c035673..596607f118 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,4 +1,4 @@ -use std::{collections::HashSet, mem}; +use std::{collections::HashSet, marker::PhantomData, mem, ops::Deref}; use bytes::{Buf, Bytes, BytesMut}; @@ -8,6 +8,29 @@ use crate::{ ChannelId, Id, }; +struct Index<'a> { + index: usize, + buffer: PhantomData<&'a BytesMut>, +} + +impl<'a> Deref for Index<'a> { + type Target = usize; + + fn deref(&self) -> &Self::Target { + &self.index + } +} + +impl<'a> Index<'a> { + fn new(buffer: &'a BytesMut, index: usize) -> Self { + let _ = buffer; + Index { + index, + buffer: PhantomData, + } + } +} + const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); const UNKNOWN_ID: Id = Id::new(0); @@ -74,20 +97,18 @@ impl RequestState { let max_data_in_frame = (max_frame_size - preamble_size) as u32; // Determine how many additional bytes are needed for frame completion. - let frame_ends_at = (preamble_size as usize - + (max_data_in_frame as usize).min(total_payload_size as usize)); - if buffer.remaining() < frame_ends_at { - return Incomplete(buffer.remaining() - frame_ends_at); + let frame_end = Index::new( + &buffer, + preamble_size as usize + + (max_data_in_frame as usize).min(total_payload_size as usize), + ); + if buffer.remaining() < *frame_end { + return Incomplete(buffer.remaining() - *frame_end); } // At this point we are sure to complete a frame, so drop the preamble. buffer.advance(preamble_size as usize); - // Pure defensive coding: Drop all now-invalid offsets. - // TODO: This has no effect, replace with https://compilersaysno.com/posts/owning-your-invariants/ - drop(frame_ends_at); - drop(preamble_size); - // Is the payload complete in one frame? if total_payload_size <= max_data_in_frame { let payload = buffer.split_to(total_payload_size as usize); @@ -124,7 +145,7 @@ impl RequestState { // Determine whether we expect an intermediate or end segment. let bytes_remaining = *total_payload_size as usize - payload.remaining(); - let max_data_in_frame = (max_frame_size as usize - Header::SIZE); + let max_data_in_frame = max_frame_size as usize - Header::SIZE; if bytes_remaining > max_data_in_frame { // Intermediate segment. @@ -143,11 +164,11 @@ impl RequestState { Success(None) } else { // End segment - let frame_end = bytes_remaining + Header::SIZE; + let frame_end = Index::new(&buffer, bytes_remaining + Header::SIZE); // If we don't have the entire frame read yet, return. - if frame_end > buffer.remaining() { - return Incomplete(frame_end - buffer.remaining()); + if *frame_end > buffer.remaining() { + return Incomplete(*frame_end - buffer.remaining()); } // Discard header. From 487b233fd2bb9b08909884bd97f90a605c039308 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 14 Jun 2023 16:16:41 +0200 Subject: [PATCH 450/735] juliet: Move multiframe reading to its own module --- juliet/src/header.rs | 1 + juliet/src/reader.rs | 170 ++--------------------------- juliet/src/reader/multiframe.rs | 185 ++++++++++++++++++++++++++++++++ 3 files changed, 193 insertions(+), 163 deletions(-) create mode 100644 juliet/src/reader/multiframe.rs diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 3df48918eb..4ff24329f7 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -2,6 +2,7 @@ use std::fmt::Debug; use crate::{ChannelId, Id}; + /// Header structure. #[derive(Copy, Clone, Eq, PartialEq)] #[repr(transparent)] diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 596607f118..11064a4f3d 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,3 +1,5 @@ +mod multiframe; + use std::{collections::HashSet, marker::PhantomData, mem, ops::Deref}; use bytes::{Buf, Bytes, BytesMut}; @@ -8,29 +10,6 @@ use crate::{ ChannelId, Id, }; -struct Index<'a> { - index: usize, - buffer: PhantomData<&'a BytesMut>, -} - -impl<'a> Deref for Index<'a> { - type Target = usize; - - fn deref(&self) -> &Self::Target { - &self.index - } -} - -impl<'a> Index<'a> { - fn new(buffer: &'a BytesMut, index: usize) -> Self { - let _ = buffer; - Index { - index, - buffer: PhantomData, - } - } -} - const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); const UNKNOWN_ID: Id = Id::new(0); @@ -50,144 +29,6 @@ struct Channel { current_request_state: RequestState, } -#[derive(Debug)] -enum RequestState { - Ready, - InProgress { - header: Header, - payload: BytesMut, - total_payload_size: u32, - }, -} - -impl RequestState { - /// Accept additional data to be written. - /// - /// If a message payload matching the given header has been succesfully completed, returns it. - /// If a starting or intermediate segment was processed without completing the message, returns - /// `None` instead. This method will never consume more than one frame. - /// - /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` - /// past header and payload only on success. - fn accept( - &mut self, - header: Header, - buffer: &mut BytesMut, - max_frame_size: u32, - ) -> Outcome> { - debug_assert!( - max_frame_size >= 10, - "maximum frame size must be enough to hold header and varint" - ); - - match self { - RequestState::Ready => { - // We have a new segment, which has a variable size. - let segment_buf = &buffer[Header::SIZE..]; - - match decode_varint32(segment_buf) { - Varint32Result::Incomplete => return Incomplete(1), - Varint32Result::Overflow => return header.return_err(ErrorKind::BadVarInt), - Varint32Result::Valid { - offset, - value: total_payload_size, - } => { - // We have a valid varint32. - let preamble_size = Header::SIZE as u32 + offset.get() as u32; - let max_data_in_frame = (max_frame_size - preamble_size) as u32; - - // Determine how many additional bytes are needed for frame completion. - let frame_end = Index::new( - &buffer, - preamble_size as usize - + (max_data_in_frame as usize).min(total_payload_size as usize), - ); - if buffer.remaining() < *frame_end { - return Incomplete(buffer.remaining() - *frame_end); - } - - // At this point we are sure to complete a frame, so drop the preamble. - buffer.advance(preamble_size as usize); - - // Is the payload complete in one frame? - if total_payload_size <= max_data_in_frame { - let payload = buffer.split_to(total_payload_size as usize); - - // No need to alter the state, we stay `Ready`. - Success(Some(payload)) - } else { - // Length exceeds the frame boundary, split to maximum and store that. - let partial_payload = buffer.split_to(max_frame_size as usize); - - // We are now in progress of reading a payload. - *self = RequestState::InProgress { - header, - payload: partial_payload, - total_payload_size, - }; - - // We have successfully consumed a frame, but are not finished yet. - Success(None) - } - } - } - } - RequestState::InProgress { - header: active_header, - payload, - total_payload_size, - } => { - if header.kind_byte_without_reserved() != active_header.kind_byte_without_reserved() - { - // The newly supplied header does not match the one active. - return header.return_err(ErrorKind::InProgress); - } - - // Determine whether we expect an intermediate or end segment. - let bytes_remaining = *total_payload_size as usize - payload.remaining(); - let max_data_in_frame = max_frame_size as usize - Header::SIZE; - - if bytes_remaining > max_data_in_frame { - // Intermediate segment. - if buffer.remaining() < max_frame_size as usize { - return Incomplete(max_frame_size as usize - buffer.remaining()); - } - - // Discard header. - buffer.advance(Header::SIZE); - - // Copy data over to internal buffer. - payload.extend_from_slice(&buffer[0..max_data_in_frame]); - buffer.advance(max_data_in_frame); - - // We're done with this frame (but not the payload). - Success(None) - } else { - // End segment - let frame_end = Index::new(&buffer, bytes_remaining + Header::SIZE); - - // If we don't have the entire frame read yet, return. - if *frame_end > buffer.remaining() { - return Incomplete(*frame_end - buffer.remaining()); - } - - // Discard header. - buffer.advance(Header::SIZE); - - // Copy data over to internal buffer. - payload.extend_from_slice(&buffer[0..bytes_remaining]); - buffer.advance(bytes_remaining); - - let finished_payload = mem::take(payload); - *self = RequestState::Ready; - - Success(Some(finished_payload)) - } - } - } - } -} - impl Channel { #[inline] fn in_flight_requests(&self) -> u32 { @@ -205,7 +46,7 @@ enum CompletedRead { NewRequest { id: Id, payload: Option }, } -enum Outcome { +pub(crate) enum Outcome { Incomplete(usize), ProtocolErr(Header), Success(T), @@ -223,9 +64,11 @@ macro_rules! try_outcome { use Outcome::{Incomplete, ProtocolErr, Success}; +use self::multiframe::RequestState; + impl Header { #[inline] - fn return_err(self, kind: ErrorKind) -> Outcome { + pub(crate) fn return_err(self, kind: ErrorKind) -> Outcome { Outcome::ProtocolErr(Header::new_error(kind, self.channel(), self.id())) } } @@ -328,6 +171,7 @@ impl State { RequestState::InProgress { header, ref mut payload, + total_payload_size, } => { todo!() } diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs new file mode 100644 index 0000000000..5fe6024a2c --- /dev/null +++ b/juliet/src/reader/multiframe.rs @@ -0,0 +1,185 @@ +use std::{marker::PhantomData, mem, ops::Deref}; + +use bytes::{Buf, BytesMut}; + +use crate::{ + header::{ErrorKind, Header}, + reader::Outcome::{self, Incomplete, Success}, + varint::{decode_varint32, Varint32Result}, +}; + +/// Bytes offset with a lifetime. +/// +/// Ensures that offsets that are depending on a buffer not being modified are not invalidated. +struct Index<'a> { + /// The value of the `Index`. + index: usize, + /// Buffer it is tied to. + buffer: PhantomData<&'a BytesMut>, +} + +impl<'a> Deref for Index<'a> { + type Target = usize; + + fn deref(&self) -> &Self::Target { + &self.index + } +} + +impl<'a> Index<'a> { + /// Creates a new `Index` with value `index`, borrowing `buffer`. + fn new(buffer: &'a BytesMut, index: usize) -> Self { + let _ = buffer; + Index { + index, + buffer: PhantomData, + } + } +} + +/// The multi-frame message receival state of a single channel, as specified in the RFC. +#[derive(Debug)] +pub(super) enum RequestState { + /// The channel is ready to start receiving a new multi-frame message. + Ready, + /// A multi-frame message transfer is currently in progress. + InProgress { + /// The header that initiated the multi-frame transfer. + header: Header, + /// Payload data received so far. + payload: BytesMut, + /// The total size of the payload to be received. + total_payload_size: u32, + }, +} + +impl RequestState { + /// Attempt to process a single multi-frame message frame. + /// + /// The caller must only calls this method if it has determined that the frame in `buffer` is + /// one that requires a payload. + /// + /// If a message payload matching the given header has been succesfully completed, returns it. + /// If a starting or intermediate segment was processed without completing the message, returns + /// `None` instead. This method will never consume more than one frame. + /// + /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` + /// past header and payload only on success. + pub(super) fn accept( + &mut self, + header: Header, + buffer: &mut BytesMut, + max_frame_size: u32, + ) -> Outcome> { + debug_assert!( + max_frame_size >= 10, + "maximum frame size must be enough to hold header and varint" + ); + + match self { + RequestState::Ready => { + // We have a new segment, which has a variable size. + let segment_buf = &buffer[Header::SIZE..]; + + match decode_varint32(segment_buf) { + Varint32Result::Incomplete => return Incomplete(1), + Varint32Result::Overflow => return header.return_err(ErrorKind::BadVarInt), + Varint32Result::Valid { + offset, + value: total_payload_size, + } => { + // We have a valid varint32. + let preamble_size = Header::SIZE as u32 + offset.get() as u32; + let max_data_in_frame = (max_frame_size - preamble_size) as u32; + + // Determine how many additional bytes are needed for frame completion. + let frame_end = Index::new( + &buffer, + preamble_size as usize + + (max_data_in_frame as usize).min(total_payload_size as usize), + ); + if buffer.remaining() < *frame_end { + return Incomplete(buffer.remaining() - *frame_end); + } + + // At this point we are sure to complete a frame, so drop the preamble. + buffer.advance(preamble_size as usize); + + // Is the payload complete in one frame? + if total_payload_size <= max_data_in_frame { + let payload = buffer.split_to(total_payload_size as usize); + + // No need to alter the state, we stay `Ready`. + Success(Some(payload)) + } else { + // Length exceeds the frame boundary, split to maximum and store that. + let partial_payload = buffer.split_to(max_frame_size as usize); + + // We are now in progress of reading a payload. + *self = RequestState::InProgress { + header, + payload: partial_payload, + total_payload_size, + }; + + // We have successfully consumed a frame, but are not finished yet. + Success(None) + } + } + } + } + RequestState::InProgress { + header: active_header, + payload, + total_payload_size, + } => { + if header.kind_byte_without_reserved() != active_header.kind_byte_without_reserved() + { + // The newly supplied header does not match the one active. + return header.return_err(ErrorKind::InProgress); + } + + // Determine whether we expect an intermediate or end segment. + let bytes_remaining = *total_payload_size as usize - payload.remaining(); + let max_data_in_frame = max_frame_size as usize - Header::SIZE; + + if bytes_remaining > max_data_in_frame { + // Intermediate segment. + if buffer.remaining() < max_frame_size as usize { + return Incomplete(max_frame_size as usize - buffer.remaining()); + } + + // Discard header. + buffer.advance(Header::SIZE); + + // Copy data over to internal buffer. + payload.extend_from_slice(&buffer[0..max_data_in_frame]); + buffer.advance(max_data_in_frame); + + // We're done with this frame (but not the payload). + Success(None) + } else { + // End segment + let frame_end = Index::new(&buffer, bytes_remaining + Header::SIZE); + + // If we don't have the entire frame read yet, return. + if *frame_end > buffer.remaining() { + return Incomplete(*frame_end - buffer.remaining()); + } + + // Discard header. + buffer.advance(Header::SIZE); + + // Copy data over to internal buffer. + payload.extend_from_slice(&buffer[0..bytes_remaining]); + buffer.advance(bytes_remaining); + + let finished_payload = mem::take(payload); + *self = RequestState::Ready; + + Success(Some(finished_payload)) + } + } + } + } +} From 2d36ce9f43c3b4e9ccdce71766f0185fbb8aeef1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 14 Jun 2023 17:33:58 +0200 Subject: [PATCH 451/735] juliet: Complete integration receival `RequestState`s into `reader` module --- juliet/src/reader.rs | 70 ++++++++++++++------------------- juliet/src/reader/multiframe.rs | 5 +++ 2 files changed, 34 insertions(+), 41 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 11064a4f3d..97d9aee3f6 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -56,7 +56,7 @@ macro_rules! try_outcome { ($src:expr) => { match $src { Outcome::Incomplete(n) => return Outcome::Incomplete(n), - Outcome::ProtocolErr(header) return Outcome::ProtocolErr(header), + Outcome::ProtocolErr(header) => return Outcome::ProtocolErr(header), Outcome::Success(value) => value, } }; @@ -101,8 +101,7 @@ impl State { return Success(CompletedRead::ErrorReceived(header)); } - // At this point we are guaranteed a valid non-error frame, which has to be on a valid - // channel. + // At this point we are guaranteed a valid non-error frame, verify its channel. let channel = match self.channels.get_mut(header.channel().get() as usize) { Some(channel) => channel, None => return header.return_err(ErrorKind::InvalidChannel), @@ -128,54 +127,43 @@ impl State { }); } Kind::Response => todo!(), - Kind::RequestPl => match channel.current_request_state { - RequestState::Ready => { + Kind::RequestPl => { + let is_new_request = channel.current_request_state.is_ready(); + + if is_new_request { if channel.is_at_max_requests() { + // If we're in the ready state, requests must be eagerly rejected if + // exceeding the limit. + return header.return_err(ErrorKind::RequestLimitExceeded); } + } + + let multiframe_outcome: Option = try_outcome!(channel + .current_request_state + .accept(header, &mut buffer, self.max_frame_size)); + // If we made it to this point, we have consumed the frame. Record it. + if is_new_request { if channel.incoming_requests.insert(header.id()) { return header.return_err(ErrorKind::DuplicateRequest); } + } - let segment_buf = &buffer[0..Header::SIZE]; - - match decode_varint32(segment_buf) { - Varint32Result::Incomplete => return Incomplete(1), - Varint32Result::Overflow => { - return header.return_err(ErrorKind::BadVarInt) - } - Varint32Result::Valid { offset, value } => { - // TODO: Check frame boundary. - - let offset = offset.get() as usize; - let total_size = value as usize; - - let payload_buf = &segment_buf[offset..]; - if payload_buf.len() >= total_size as usize { - // Entire payload is already in segment. We can just remove it - // from the buffer and return. - - buffer.advance(Header::SIZE + offset); - let payload = buffer.split_to(total_size).freeze(); - return Success(CompletedRead::NewRequest { - id: header.id(), - payload: Some(payload), - }); - } - - todo!() // doesn't fit - check if the segment was filled completely. - } + match multiframe_outcome { + Some(payload) => { + // Message is complete. + return Success(CompletedRead::NewRequest { + id: header.id(), + payload: Some(payload.freeze()), + }); + } + None => { + // We need more frames to complete the payload. Do nothing and attempt + // to read the next frame. } } - RequestState::InProgress { - header, - ref mut payload, - total_payload_size, - } => { - todo!() - } - }, + } Kind::ResponsePl => todo!(), Kind::CancelReq => todo!(), Kind::CancelResp => todo!(), diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs index 5fe6024a2c..6f5f487873 100644 --- a/juliet/src/reader/multiframe.rs +++ b/juliet/src/reader/multiframe.rs @@ -182,4 +182,9 @@ impl RequestState { } } } + + /// Returns whether or not the current request state is + pub(super) fn is_ready(&self) -> bool { + matches!(self, RequestState::Ready) + } } From c8b3796cbe4554e1805c9cad2abc3824b897b3cc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 14 Jun 2023 17:57:00 +0200 Subject: [PATCH 452/735] juliet: Implement non-payload response reception --- juliet/src/reader.rs | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 97d9aee3f6..5ea8d36b28 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -44,6 +44,7 @@ impl Channel { enum CompletedRead { ErrorReceived(Header), NewRequest { id: Id, payload: Option }, + ReceivedResponse { id: Id, payload: Option }, } pub(crate) enum Outcome { @@ -97,8 +98,16 @@ impl State { // We have a valid header, check if it is an error. if header.is_error() { - // TODO: Read the payload of `OTHER` errors. - return Success(CompletedRead::ErrorReceived(header)); + match header.error_kind() { + ErrorKind::Other => { + // TODO: `OTHER` errors may contain a payload. + + unimplemented!() + } + _ => { + return Success(CompletedRead::ErrorReceived(header)); + } + } } // At this point we are guaranteed a valid non-error frame, verify its channel. @@ -126,7 +135,16 @@ impl State { payload: None, }); } - Kind::Response => todo!(), + Kind::Response => { + if !channel.outgoing_requests.remove(&header.id()) { + return header.return_err(ErrorKind::FictitiousRequest); + } else { + return Success(CompletedRead::ReceivedResponse { + id: header.id(), + payload: None, + }); + } + } Kind::RequestPl => { let is_new_request = channel.current_request_state.is_ready(); From 60be67bc699821fc9b2f664f05a8ac6db2b057d2 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 14 Jun 2023 16:47:18 +0000 Subject: [PATCH 453/735] ee/trie_store/tests: use `PanickingFromBytes` for values when writing Using `PanickingFromBytes` in tests ensures the `write` operation will not deserialize a value. Signed-off-by: Alexandru Sardan --- .../operations/tests/bytesrepr_utils.rs | 6 + .../trie_store/operations/tests/ee_699.rs | 4 + .../trie_store/operations/tests/mod.rs | 46 ++++-- .../trie_store/operations/tests/write.rs | 143 +++++++++++++----- 4 files changed, 152 insertions(+), 47 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs b/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs index 5300a1ac47..7c44d0f9af 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/bytesrepr_utils.rs @@ -3,6 +3,12 @@ use casper_types::bytesrepr::{self, FromBytes, ToBytes}; #[derive(PartialEq, Eq, Debug, Clone)] pub(crate) struct PanickingFromBytes(T); +impl PanickingFromBytes { + pub(crate) fn new(inner: T) -> PanickingFromBytes { + PanickingFromBytes(inner) + } +} + impl FromBytes for PanickingFromBytes where T: FromBytes, diff --git a/execution_engine/src/storage/trie_store/operations/tests/ee_699.rs b/execution_engine/src/storage/trie_store/operations/tests/ee_699.rs index 6d8927ac91..c6c89aed96 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/ee_699.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/ee_699.rs @@ -302,10 +302,14 @@ mod empty_tries { _, _, _, + _, + _, in_memory::Error, >( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_states, &TEST_LEAVES, diff --git a/execution_engine/src/storage/trie_store/operations/tests/mod.rs b/execution_engine/src/storage/trie_store/operations/tests/mod.rs index e6f5672ed3..1997499110 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/mod.rs @@ -43,6 +43,8 @@ use crate::{ }, }; +use self::bytesrepr_utils::PanickingFromBytes; + const TEST_KEY_LENGTH: usize = 7; /// A short key type for tests. @@ -132,7 +134,7 @@ impl ToBytes for TestValue { } } -// Determine if a there exists a caller in the backtrace that matches any of the specified symbols +// Determine if there exists a caller in the backtrace that matches any of the specified symbols fn first_caller_from_set(backtrace: &Backtrace, symbols: &[*mut c_void]) -> Option<*mut c_void> { if symbols.is_empty() { return None; @@ -824,7 +826,7 @@ where K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, V: ToBytes + FromBytes + Clone + Eq, R: TransactionSource<'a, Handle = S::Handle>, - S: TrieStore, + S: TrieStore>, S::Error: From, E: From + From + From, { @@ -834,13 +836,20 @@ where } let mut root_hash = root_hash.to_owned(); let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; - let write_op = write:: as *mut c_void; + let write_op = write::, R::ReadWriteTransaction, S, E> as *mut c_void; for leaf in leaves.iter() { if let Trie::Leaf { key, value } = leaf { + let new_value = PanickingFromBytes::new(value.clone()); let _counter = TestValue::before_operation(write_op); - let write_result = - write::<_, _, _, _, E>(correlation_id, &mut txn, store, &root_hash, key, value)?; + let write_result = write::, _, _, E>( + correlation_id, + &mut txn, + store, + &root_hash, + key, + &new_value, + )?; let counter = TestValue::after_operation(write_op); assert_eq!(counter, 0, "Write should never deserialize a value"); match write_result { @@ -970,7 +979,7 @@ where K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, V: ToBytes + FromBytes + Clone + Eq, R: TransactionSource<'a, Handle = S::Handle>, - S: TrieStore, + S: TrieStore>, S::Error: From, E: From + From + From, { @@ -981,10 +990,18 @@ where let mut root_hash = root_hash.to_owned(); let mut txn = environment.create_read_write_txn()?; - let write_op = write:: as *mut c_void; + let write_op = write::, R::ReadWriteTransaction, S, E> as *mut c_void; for (key, value) in pairs.iter() { let _counter = TestValue::before_operation(write_op); - match write::<_, _, _, _, E>(correlation_id, &mut txn, store, &root_hash, key, value)? { + let new_val = PanickingFromBytes::new(value.clone()); + match write::, _, _, E>( + correlation_id, + &mut txn, + store, + &root_hash, + key, + &new_val, + )? { WriteResult::Written(hash) => { root_hash = hash; } @@ -999,10 +1016,12 @@ where Ok(results) } -fn writes_to_n_leaf_empty_trie_had_expected_results<'a, K, V, R, S, E>( +fn writes_to_n_leaf_empty_trie_had_expected_results<'a, K, V, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + writable_environment: &'a WR, store: &S, + writable_store: &WS, states: &[Digest], test_leaves: &[Trie], ) -> Result, E> @@ -1010,17 +1029,20 @@ where K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug + Copy + Ord, V: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug + Copy, R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + From + From + From + From, { let mut states = states.to_vec(); // Write set of leaves to the trie let hashes = write_leaves::<_, _, _, _, E>( correlation_id, - environment, - store, + writable_environment, + writable_store, states.last().unwrap(), test_leaves, )? diff --git a/execution_engine/src/storage/trie_store/operations/tests/write.rs b/execution_engine/src/storage/trie_store/operations/tests/write.rs index 314fdedd7c..1c4e0917a9 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/write.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/write.rs @@ -13,9 +13,11 @@ mod empty_tries { let context = LmdbTestContext::new(&tries).unwrap(); let initial_states = vec![root_hash]; - writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, error::Error>( + writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_states, &TEST_LEAVES_NON_COLLIDING[..num_leaves], @@ -32,9 +34,11 @@ mod empty_tries { let context = InMemoryTestContext::new(&tries).unwrap(); let initial_states = vec![root_hash]; - writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, in_memory::Error>( + writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_states, &TEST_LEAVES_NON_COLLIDING[..num_leaves], @@ -51,9 +55,11 @@ mod empty_tries { let context = LmdbTestContext::new(&tries).unwrap(); let initial_states = vec![root_hash]; - writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, error::Error>( + writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_states, &TEST_LEAVES[..num_leaves], @@ -70,9 +76,11 @@ mod empty_tries { let context = InMemoryTestContext::new(&tries).unwrap(); let initial_states = vec![root_hash]; - writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, in_memory::Error>( + writes_to_n_leaf_empty_trie_had_expected_results::<_, _, _, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_states, &TEST_LEAVES[..num_leaves], @@ -118,18 +126,27 @@ mod empty_tries { mod partial_tries { use super::*; - fn noop_writes_to_n_leaf_partial_trie_had_expected_results<'a, R, S, E>( + fn noop_writes_to_n_leaf_partial_trie_had_expected_results<'a, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + writable_store: &WS, states: &[Digest], num_leaves: usize, ) -> Result<(), E> where R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { // Check that the expected set of leaves is in the trie check_leaves::<_, _, _, _, E>( @@ -142,10 +159,10 @@ mod partial_tries { )?; // Rewrite that set of leaves - let write_results = write_leaves::<_, _, _, _, E>( + let write_results = write_leaves::( correlation_id, - environment, - store, + write_environment, + writable_store, &states[0], &TEST_LEAVES[..num_leaves], )?; @@ -173,9 +190,11 @@ mod partial_tries { let context = LmdbTestContext::new(&tries).unwrap(); let states = vec![root_hash]; - noop_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, error::Error>( + noop_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, num_leaves, @@ -192,9 +211,11 @@ mod partial_tries { let context = InMemoryTestContext::new(&tries).unwrap(); let states = vec![root_hash]; - noop_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, in_memory::Error>( + noop_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, num_leaves, @@ -203,18 +224,27 @@ mod partial_tries { } } - fn update_writes_to_n_leaf_partial_trie_had_expected_results<'a, R, S, E>( + fn update_writes_to_n_leaf_partial_trie_had_expected_results<'a, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + writable_store: &WS, states: &[Digest], num_leaves: usize, ) -> Result<(), E> where R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { let mut states = states.to_owned(); @@ -243,8 +273,8 @@ mod partial_tries { let current_root = states.last().unwrap(); let results = write_leaves::<_, _, _, _, E>( correlation_id, - environment, - store, + write_environment, + writable_store, current_root, &[leaf.to_owned()], )?; @@ -279,9 +309,11 @@ mod partial_tries { let context = LmdbTestContext::new(&tries).unwrap(); let initial_states = vec![root_hash]; - update_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, error::Error>( + update_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_states, num_leaves, @@ -298,9 +330,11 @@ mod partial_tries { let context = InMemoryTestContext::new(&tries).unwrap(); let states = vec![root_hash]; - update_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, in_memory::Error>( + update_writes_to_n_leaf_partial_trie_had_expected_results::<_, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, num_leaves, @@ -313,18 +347,27 @@ mod partial_tries { mod full_tries { use super::*; - fn noop_writes_to_n_leaf_full_trie_had_expected_results<'a, R, S, E>( + fn noop_writes_to_n_leaf_full_trie_had_expected_results<'a, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + write_store: &WS, states: &[Digest], index: usize, ) -> Result<(), E> where R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { // Check that the expected set of leaves is in the trie at every state reference for (num_leaves, state) in states[..index].iter().enumerate() { @@ -341,8 +384,8 @@ mod full_tries { // Rewrite that set of leaves let write_results = write_leaves::<_, _, _, _, E>( correlation_id, - environment, - store, + write_environment, + write_store, states.last().unwrap(), &TEST_LEAVES[..index], )?; @@ -377,9 +420,11 @@ mod full_tries { context.update(&tries).unwrap(); states.push(root_hash); - noop_writes_to_n_leaf_full_trie_had_expected_results::<_, _, error::Error>( + noop_writes_to_n_leaf_full_trie_had_expected_results::<_, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, index, @@ -399,9 +444,11 @@ mod full_tries { context.update(&tries).unwrap(); states.push(root_hash); - noop_writes_to_n_leaf_full_trie_had_expected_results::<_, _, in_memory::Error>( + noop_writes_to_n_leaf_full_trie_had_expected_results::<_, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, index, @@ -410,18 +457,27 @@ mod full_tries { } } - fn update_writes_to_n_leaf_full_trie_had_expected_results<'a, R, S, E>( + fn update_writes_to_n_leaf_full_trie_had_expected_results<'a, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + write_store: &WS, states: &[Digest], num_leaves: usize, ) -> Result<(), E> where R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { let mut states = states.to_vec(); @@ -440,8 +496,8 @@ mod full_tries { // Write set of leaves to the trie let hashes = write_leaves::<_, _, _, _, E>( correlation_id, - environment, - store, + write_environment, + write_store, states.last().unwrap(), &TEST_LEAVES_UPDATED[..num_leaves], )? @@ -501,9 +557,11 @@ mod full_tries { context.update(&tries).unwrap(); states.push(root_hash); - update_writes_to_n_leaf_full_trie_had_expected_results::<_, _, error::Error>( + update_writes_to_n_leaf_full_trie_had_expected_results::<_, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, num_leaves, @@ -523,9 +581,11 @@ mod full_tries { context.update(&tries).unwrap(); states.push(root_hash); - update_writes_to_n_leaf_full_trie_had_expected_results::<_, _, in_memory::Error>( + update_writes_to_n_leaf_full_trie_had_expected_results::<_, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, num_leaves, @@ -534,17 +594,26 @@ mod full_tries { } } - fn node_writes_to_5_leaf_full_trie_had_expected_results<'a, R, S, E>( + fn node_writes_to_5_leaf_full_trie_had_expected_results<'a, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + write_store: &WS, states: &[Digest], ) -> Result<(), E> where R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { let mut states = states.to_vec(); let num_leaves = TEST_LEAVES_LENGTH; @@ -564,8 +633,8 @@ mod full_tries { // Write set of leaves to the trie let hashes = write_leaves::<_, _, _, _, E>( correlation_id, - environment, - store, + write_environment, + write_store, states.last().unwrap(), &TEST_LEAVES_ADJACENTS, )? @@ -625,9 +694,11 @@ mod full_tries { states.push(root_hash); } - node_writes_to_5_leaf_full_trie_had_expected_results::<_, _, error::Error>( + node_writes_to_5_leaf_full_trie_had_expected_results::<_, _, _, _, error::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, ) @@ -646,9 +717,11 @@ mod full_tries { states.push(root_hash); } - node_writes_to_5_leaf_full_trie_had_expected_results::<_, _, in_memory::Error>( + node_writes_to_5_leaf_full_trie_had_expected_results::<_, _, _, _, in_memory::Error>( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &states, ) From 14e8e6a7ced3733044ed6f5ade42cdf9548f8f49 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 15 Jun 2023 15:20:58 +0200 Subject: [PATCH 454/735] juliet: Complete multiframe versions of request/response reception --- juliet/src/header.rs | 29 ----------------- juliet/src/reader.rs | 58 ++++++++++++++++++++++++++++----- juliet/src/reader/multiframe.rs | 31 +++++++++++------- 3 files changed, 69 insertions(+), 49 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 4ff24329f7..7fb358f26c 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -165,16 +165,6 @@ impl Header { self.0[0] } - /// Returns the kind byte with all reserved bits zero'd. - #[inline(always)] - pub(crate) fn kind_byte_without_reserved(self) -> u8 { - if self.is_error() { - self.kind_byte() & (Self::KIND_ERR_BIT | Self::KIND_ERR_MASK) - } else { - self.kind_byte() & (Self::KIND_ERR_BIT | Self::KIND_MASK) - } - } - /// Returns the channel. #[inline(always)] pub(crate) fn channel(self) -> ChannelId { @@ -295,25 +285,6 @@ mod tests { assert_eq!(<[u8; Header::SIZE]>::from(expected), input); } - #[test] - fn kind_byte_without_reserved_zeros_reserved() { - let input_err = [0b1111_1000, 0xFF, 0xFF, 0xFF]; - assert_eq!( - Header::parse(input_err) - .expect("could not parse header") - .kind_byte_without_reserved(), - 0b1000_1000 - ); - - let input_ok = [0b0111_0100, 0xFF, 0xFF, 0xFF]; - assert_eq!( - Header::parse(input_ok) - .expect("could not parse header") - .kind_byte_without_reserved(), - 0b0000_0100 - ); - } - #[proptest] fn roundtrip_valid_headers(header: Header) { let raw: [u8; Header::SIZE] = header.into(); diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 5ea8d36b28..d1d295a08a 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -26,7 +26,7 @@ struct Channel { request_limit: u32, max_request_payload_size: u32, max_response_payload_size: u32, - current_request_state: RequestState, + current_multiframe_receive: MultiframeSendState, } impl Channel { @@ -65,7 +65,7 @@ macro_rules! try_outcome { use Outcome::{Incomplete, ProtocolErr, Success}; -use self::multiframe::RequestState; +use self::multiframe::MultiframeSendState; impl Header { #[inline] @@ -146,19 +146,24 @@ impl State { } } Kind::RequestPl => { - let is_new_request = channel.current_request_state.is_ready(); + // First, we need to "gate" the incoming request; it only gets to bypass the request limit if it is already in progress: + let is_new_request = channel.current_multiframe_receive.is_new_transfer(header); if is_new_request { + // If we're in the ready state, requests must be eagerly rejected if + // exceeding the limit. if channel.is_at_max_requests() { - // If we're in the ready state, requests must be eagerly rejected if - // exceeding the limit. - return header.return_err(ErrorKind::RequestLimitExceeded); } - } + + // We also check for duplicate requests early to avoid reading them. + if channel.incoming_requests.contains(&header.id()) { + return header.return_err(ErrorKind::DuplicateRequest); + } + }; let multiframe_outcome: Option = try_outcome!(channel - .current_request_state + .current_multiframe_receive .accept(header, &mut buffer, self.max_frame_size)); // If we made it to this point, we have consumed the frame. Record it. @@ -182,7 +187,42 @@ impl State { } } } - Kind::ResponsePl => todo!(), + Kind::ResponsePl => { + let is_new_response = + channel.current_multiframe_receive.is_new_transfer(header); + + // Ensure it is not a bogus response. + if is_new_response { + if !channel.outgoing_requests.contains(&header.id()) { + return header.return_err(ErrorKind::FictitiousRequest); + } + } + + let multiframe_outcome: Option = try_outcome!(channel + .current_multiframe_receive + .accept(header, &mut buffer, self.max_frame_size)); + + // If we made it to this point, we have consumed the frame. + if is_new_response { + if !channel.outgoing_requests.remove(&header.id()) { + return header.return_err(ErrorKind::FictitiousRequest); + } + } + + match multiframe_outcome { + Some(payload) => { + // Message is complete. + return Success(CompletedRead::ReceivedResponse { + id: header.id(), + payload: Some(payload.freeze()), + }); + } + None => { + // We need more frames to complete the payload. Do nothing and attempt + // to read the next frame. + } + } + } Kind::CancelReq => todo!(), Kind::CancelResp => todo!(), } diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs index 6f5f487873..b292585f3d 100644 --- a/juliet/src/reader/multiframe.rs +++ b/juliet/src/reader/multiframe.rs @@ -39,7 +39,7 @@ impl<'a> Index<'a> { /// The multi-frame message receival state of a single channel, as specified in the RFC. #[derive(Debug)] -pub(super) enum RequestState { +pub(super) enum MultiframeSendState { /// The channel is ready to start receiving a new multi-frame message. Ready, /// A multi-frame message transfer is currently in progress. @@ -53,7 +53,7 @@ pub(super) enum RequestState { }, } -impl RequestState { +impl MultiframeSendState { /// Attempt to process a single multi-frame message frame. /// /// The caller must only calls this method if it has determined that the frame in `buffer` is @@ -77,7 +77,7 @@ impl RequestState { ); match self { - RequestState::Ready => { + MultiframeSendState::Ready => { // We have a new segment, which has a variable size. let segment_buf = &buffer[Header::SIZE..]; @@ -116,7 +116,7 @@ impl RequestState { let partial_payload = buffer.split_to(max_frame_size as usize); // We are now in progress of reading a payload. - *self = RequestState::InProgress { + *self = MultiframeSendState::InProgress { header, payload: partial_payload, total_payload_size, @@ -128,13 +128,12 @@ impl RequestState { } } } - RequestState::InProgress { + MultiframeSendState::InProgress { header: active_header, payload, total_payload_size, } => { - if header.kind_byte_without_reserved() != active_header.kind_byte_without_reserved() - { + if header != *active_header { // The newly supplied header does not match the one active. return header.return_err(ErrorKind::InProgress); } @@ -175,7 +174,7 @@ impl RequestState { buffer.advance(bytes_remaining); let finished_payload = mem::take(payload); - *self = RequestState::Ready; + *self = MultiframeSendState::Ready; Success(Some(finished_payload)) } @@ -183,8 +182,18 @@ impl RequestState { } } - /// Returns whether or not the current request state is - pub(super) fn is_ready(&self) -> bool { - matches!(self, RequestState::Ready) + #[inline] + pub(super) fn current_header(&self) -> Option
{ + match self { + MultiframeSendState::Ready => None, + MultiframeSendState::InProgress { header, .. } => Some(*header), + } + } + + pub(super) fn is_new_transfer(&self, new_header: Header) -> bool { + match self { + MultiframeSendState::Ready => true, + MultiframeSendState::InProgress { header, .. } => *header != new_header, + } } } From df0f7c7c9a35ce33670c1dd4b2fe945ad3cc660b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 15 Jun 2023 18:29:17 +0200 Subject: [PATCH 455/735] juliet: Add support for cancellations --- juliet/src/reader.rs | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index d1d295a08a..3a174fbe09 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -27,6 +27,7 @@ struct Channel { max_request_payload_size: u32, max_response_payload_size: u32, current_multiframe_receive: MultiframeSendState, + cancellation_allowance: u32, } impl Channel { @@ -39,12 +40,20 @@ impl Channel { fn is_at_max_requests(&self) -> bool { self.in_flight_requests() == self.request_limit } + + fn increment_cancellation_allowance(&mut self) { + if self.cancellation_allowance < self.request_limit { + self.cancellation_allowance += 1; + } + } } enum CompletedRead { ErrorReceived(Header), NewRequest { id: Id, payload: Option }, ReceivedResponse { id: Id, payload: Option }, + RequestCancellation { id: Id }, + ResponseCancellation { id: Id }, } pub(crate) enum Outcome { @@ -125,6 +134,7 @@ impl State { if channel.incoming_requests.insert(header.id()) { return header.return_err(ErrorKind::DuplicateRequest); } + channel.increment_cancellation_allowance(); // At this point, we have a valid request and its ID has been added to our // incoming set. All we need to do now is to remove it from the buffer. @@ -171,6 +181,7 @@ impl State { if channel.incoming_requests.insert(header.id()) { return header.return_err(ErrorKind::DuplicateRequest); } + channel.increment_cancellation_allowance(); } match multiframe_outcome { @@ -223,8 +234,26 @@ impl State { } } } - Kind::CancelReq => todo!(), - Kind::CancelResp => todo!(), + Kind::CancelReq => { + // Cancellations can be sent multiple times and are not checked to avoid + // cancellation races. For security reasons they are subject to an allowance. + + if channel.cancellation_allowance == 0 { + return header.return_err(ErrorKind::CancellationLimitExceeded); + } + channel.cancellation_allowance -= 1; + + // TODO: What to do with partially received multi-frame request? + + return Success(CompletedRead::RequestCancellation { id: header.id() }); + } + Kind::CancelResp => { + if channel.outgoing_requests.remove(&header.id()) { + return Success(CompletedRead::ResponseCancellation { id: header.id() }); + } else { + return header.return_err(ErrorKind::FictitiousCancel); + } + } } } } From bf2a51e4e0307d24a006518f6a32492a15b5888f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 16 Jun 2023 13:23:13 +0200 Subject: [PATCH 456/735] juliet: Cleanup imports and visibility --- juliet/src/header.rs | 2 +- juliet/src/lib.rs | 6 +++--- juliet/src/reader.rs | 13 ++++++------- juliet/src/reader/multiframe.rs | 8 -------- 4 files changed, 10 insertions(+), 19 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 7fb358f26c..2b359a9f4c 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -6,7 +6,7 @@ use crate::{ChannelId, Id}; /// Header structure. #[derive(Copy, Clone, Eq, PartialEq)] #[repr(transparent)] -pub(crate) struct Header([u8; Self::SIZE]); +pub struct Header([u8; Self::SIZE]); impl Debug for Header { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 745cd41495..b3718046f0 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,7 +1,7 @@ use std::fmt::{self, Display}; mod header; -mod reader; +pub mod reader; pub mod varint; /// A channel identifier. @@ -11,7 +11,7 @@ pub mod varint; /// exists. #[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialOrd, PartialEq)] #[repr(transparent)] -struct ChannelId(u8); +pub struct ChannelId(u8); impl Display for ChannelId { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { @@ -46,7 +46,7 @@ impl From for u8 { /// Does not indicate whether or not an ID refers to an existing request. #[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialOrd, PartialEq)] #[repr(transparent)] -struct Id(u16); +pub struct Id(u16); impl Display for Id { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 3a174fbe09..ae97b22ed9 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,12 +1,11 @@ mod multiframe; -use std::{collections::HashSet, marker::PhantomData, mem, ops::Deref}; +use std::collections::HashSet; use bytes::{Buf, Bytes, BytesMut}; use crate::{ header::{ErrorKind, Header, Kind}, - varint::{decode_varint32, Varint32Result}, ChannelId, Id, }; @@ -14,7 +13,7 @@ const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); const UNKNOWN_ID: Id = Id::new(0); #[derive(Debug)] -pub struct State { +pub struct ReaderState { channels: [Channel; N], max_frame_size: u32, } @@ -48,7 +47,7 @@ impl Channel { } } -enum CompletedRead { +pub enum CompletedRead { ErrorReceived(Header), NewRequest { id: Id, payload: Option }, ReceivedResponse { id: Id, payload: Option }, @@ -56,7 +55,7 @@ enum CompletedRead { ResponseCancellation { id: Id }, } -pub(crate) enum Outcome { +pub enum Outcome { Incomplete(usize), ProtocolErr(Header), Success(T), @@ -83,8 +82,8 @@ impl Header { } } -impl State { - fn process_data(&mut self, mut buffer: BytesMut) -> Outcome { +impl ReaderState { + pub fn process(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { // We do not have enough data to extract a header, indicate and return. diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs index b292585f3d..113ec55722 100644 --- a/juliet/src/reader/multiframe.rs +++ b/juliet/src/reader/multiframe.rs @@ -182,14 +182,6 @@ impl MultiframeSendState { } } - #[inline] - pub(super) fn current_header(&self) -> Option
{ - match self { - MultiframeSendState::Ready => None, - MultiframeSendState::InProgress { header, .. } => Some(*header), - } - } - pub(super) fn is_new_transfer(&self, new_header: Header) -> bool { match self { MultiframeSendState::Ready => true, From e773c8cdcc9653713e5b01164d81b70b18829403 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 16 Jun 2023 13:31:20 +0200 Subject: [PATCH 457/735] juliet: Check maximum payload sizes when parsing multiframe messages --- juliet/src/header.rs | 20 ++++++++++---------- juliet/src/reader.rs | 22 ++++++++++++++++------ juliet/src/reader/multiframe.rs | 6 ++++++ 3 files changed, 32 insertions(+), 16 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 2b359a9f4c..cc31eff98a 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -34,7 +34,7 @@ impl Debug for Header { #[derive(Copy, Clone, Debug)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] -pub(crate) enum ErrorKind { +pub enum ErrorKind { /// Application defined error. Other = 0, /// The maximum frame size has been exceeded. This error cannot occur in this implementation, @@ -72,7 +72,7 @@ pub(crate) enum ErrorKind { #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] -pub(crate) enum Kind { +pub enum Kind { /// A request with no payload. Request = 0, /// A response with no payload. @@ -113,14 +113,14 @@ impl Header { /// Creates a new non-error header. #[inline(always)] - pub(crate) fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { + pub fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { let id = id.get().to_le_bytes(); Header([kind as u8, channel.get(), id[0], id[1]]) } /// Creates a new error header. #[inline(always)] - pub(crate) fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { + pub fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { let id = id.get().to_le_bytes(); Header([ kind as u8 | Header::KIND_ERR_BIT, @@ -134,7 +134,7 @@ impl Header { /// /// Returns `None` if the given `raw` bytes are not a valid header. #[inline(always)] - pub(crate) fn parse(mut raw: [u8; Header::SIZE]) -> Option { + pub fn parse(mut raw: [u8; Header::SIZE]) -> Option { // Zero-out reserved bits. raw[0] &= Self::KIND_ERR_MASK | Self::KIND_ERR_BIT; @@ -167,20 +167,20 @@ impl Header { /// Returns the channel. #[inline(always)] - pub(crate) fn channel(self) -> ChannelId { + pub fn channel(self) -> ChannelId { ChannelId::new(self.0[1]) } /// Returns the id. #[inline(always)] - pub(crate) fn id(self) -> Id { + pub fn id(self) -> Id { let [_, _, id @ ..] = self.0; Id::new(u16::from_le_bytes(id)) } /// Returns whether the error bit is set. #[inline(always)] - pub(crate) fn is_error(self) -> bool { + pub fn is_error(self) -> bool { self.kind_byte() & Self::KIND_ERR_BIT == Self::KIND_ERR_BIT } @@ -190,7 +190,7 @@ impl Header { /// /// Will panic if `Self::is_error()` is not `true`. #[inline(always)] - pub(crate) fn error_kind(self) -> ErrorKind { + pub fn error_kind(self) -> ErrorKind { debug_assert!(self.is_error()); match self.kind_byte() & Self::KIND_ERR_MASK { 0 => ErrorKind::Other, @@ -218,7 +218,7 @@ impl Header { /// /// Will panic if `Self::is_error()` is not `false`. #[inline(always)] - pub(crate) fn kind(self) -> Kind { + pub fn kind(self) -> Kind { debug_assert!(!self.is_error()); match self.kind_byte() & Self::KIND_MASK { 0 => Kind::Request, diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index ae97b22ed9..cba908825f 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -171,9 +171,14 @@ impl ReaderState { } }; - let multiframe_outcome: Option = try_outcome!(channel - .current_multiframe_receive - .accept(header, &mut buffer, self.max_frame_size)); + let multiframe_outcome: Option = + try_outcome!(channel.current_multiframe_receive.accept( + header, + &mut buffer, + self.max_frame_size, + channel.max_request_payload_size, + ErrorKind::RequestTooLarge + )); // If we made it to this point, we have consumed the frame. Record it. if is_new_request { @@ -208,9 +213,14 @@ impl ReaderState { } } - let multiframe_outcome: Option = try_outcome!(channel - .current_multiframe_receive - .accept(header, &mut buffer, self.max_frame_size)); + let multiframe_outcome: Option = + try_outcome!(channel.current_multiframe_receive.accept( + header, + &mut buffer, + self.max_frame_size, + channel.max_response_payload_size, + ErrorKind::ResponseTooLarge + )); // If we made it to this point, we have consumed the frame. if is_new_response { diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs index 113ec55722..1878bafd5c 100644 --- a/juliet/src/reader/multiframe.rs +++ b/juliet/src/reader/multiframe.rs @@ -70,6 +70,8 @@ impl MultiframeSendState { header: Header, buffer: &mut BytesMut, max_frame_size: u32, + max_payload_size: u32, + payload_exceeded_error_kind: ErrorKind, ) -> Outcome> { debug_assert!( max_frame_size >= 10, @@ -88,6 +90,10 @@ impl MultiframeSendState { offset, value: total_payload_size, } => { + if total_payload_size > max_payload_size { + return header.return_err(payload_exceeded_error_kind); + } + // We have a valid varint32. let preamble_size = Header::SIZE as u32 + offset.get() as u32; let max_data_in_frame = (max_frame_size - preamble_size) as u32; From bc8269d45ee6899009594c5571b520637db9f38e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 16 Jun 2023 14:03:13 +0200 Subject: [PATCH 458/735] Update `casper-wasm-utils` to 2.0.0 --- Cargo.lock | 4 ++-- execution_engine/Cargo.toml | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 4039194c35..0f8322e01d 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -705,9 +705,9 @@ dependencies = [ [[package]] name = "casper-wasm-utils" -version = "1.1.0" +version = "2.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "13cd18418b19bc2cbd2bc724cc9050055848e734182e861af43e130a0d442291" +checksum = "b49e4ef1382d48c312809fe8f09d0c7beb434a74f5026c5f12efe384df51ca42" dependencies = [ "byteorder", "log", diff --git a/execution_engine/Cargo.toml b/execution_engine/Cargo.toml index 253136bc92..34ef9a093b 100644 --- a/execution_engine/Cargo.toml +++ b/execution_engine/Cargo.toml @@ -16,7 +16,7 @@ base16 = "0.2.1" bincode = "1.3.1" casper-hashing = { version = "1.4.4", path = "../hashing" } casper-types = { version = "2.0.0", path = "../types", default-features = false, features = ["datasize", "gens", "json-schema"] } -casper-wasm-utils = "1.1.0" +casper-wasm-utils = "2.0.0" datasize = "0.2.4" either = "1.8.1" hex_fmt = "0.3.0" From 2f75220493c37433b7739c2af8a0e93ff522b910 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Fri, 16 Jun 2023 14:07:38 +0000 Subject: [PATCH 459/735] ee/trie_store/operation: use `PanickingFromBytes` wrapper Use `PanickingFromBytes` wrapper for values `V` in tests to ensure a value is not deserialized by `delete` operations. Also use the `NonDeserializingStore` wrapper in the operation themselves to strenghten this guarantee for debug runs. Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/operations/mod.rs | 9 +- .../trie_store/operations/store_wrappers.rs | 7 +- .../trie_store/operations/tests/delete.rs | 193 ++++++++++++++---- .../trie_store/operations/tests/scan.rs | 5 +- 4 files changed, 164 insertions(+), 50 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index cade73c2d3..651266fcfc 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -309,7 +309,7 @@ impl TrieScanRaw { /// their depth from the root (shallow to deep). The tip is not parsed. fn scan_raw( txn: &T, - store: &S, + store: &NonDeserializingStore, key_bytes: &[u8], root_bytes: Bytes, ) -> Result, E> @@ -328,7 +328,6 @@ where let mut depth: usize = 0; let mut acc: Parents = Vec::new(); - let store = store_wrappers::NonDeserializingStore::new(store); loop { let maybe_trie_leaf = trie::lazy_trie_deserialize(current)?; current_trie = match maybe_trie_leaf { @@ -429,6 +428,7 @@ where S::Error: From, E: From + From, { + let store = store_wrappers::NonDeserializingStore::new(store); let root_trie_bytes = match store.get_raw(txn, root)? { None => return Ok(DeleteResult::RootNotFound), Some(root_trie) => root_trie, @@ -436,7 +436,7 @@ where let key_bytes = key_to_delete.to_bytes()?; let TrieScanRaw { tip, mut parents } = - scan_raw::<_, _, _, _, E>(txn, store, &key_bytes, root_trie_bytes)?; + scan_raw::<_, _, _, _, E>(txn, &store, &key_bytes, root_trie_bytes)?; // Check that tip is a leaf match tip { @@ -890,6 +890,7 @@ where S::Error: From, E: From + From, { + let store = store_wrappers::NonDeserializingStore::new(store); match store.get_raw(txn, root)? { None => Ok(WriteResult::RootNotFound), Some(current_root_bytes) => { @@ -899,7 +900,7 @@ where }; let path: Vec = key.to_bytes()?; let TrieScanRaw { tip, parents } = - scan_raw::(txn, store, &path, current_root_bytes)?; + scan_raw::(txn, &store, &path, current_root_bytes)?; let new_elements: Vec<(Digest, Trie)> = match tip { LazyTrieLeaf::Left(leaf_bytes) => { let trie_tag = trie::lazy_trie_tag(leaf_bytes.as_slice()); diff --git a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs index daf4b73178..271c2a00f5 100644 --- a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -42,8 +42,11 @@ where { #[cfg(debug_assertions)] { - let _ = bytes; - panic!("Tried to deserialize a value but expected no deserialization to happen.") + let trie: Trie = bytesrepr::deserialize_from_slice(bytes)?; + if let Trie::Leaf { .. } = trie { + panic!("Tried to deserialize a value but expected no deserialization to happen.") + } + Ok(trie) } #[cfg(not(debug_assertions))] { diff --git a/execution_engine/src/storage/trie_store/operations/tests/delete.rs b/execution_engine/src/storage/trie_store/operations/tests/delete.rs index 823a6fbdd4..73f2101f1b 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/delete.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/delete.rs @@ -1,31 +1,46 @@ use super::*; -use crate::storage::{transaction_source::Writable, trie_store::operations::DeleteResult}; +use crate::storage::trie_store::operations::DeleteResult; -fn checked_delete( +fn checked_delete<'a, K, V, R, WR, S, WS, E>( correlation_id: CorrelationId, - txn: &mut T, + environment: &'a R, + write_environment: &'a WR, store: &S, + write_store: &WS, root: &Digest, key_to_delete: &K, ) -> Result where K: ToBytes + FromBytes + Clone + std::fmt::Debug + Eq, V: ToBytes + FromBytes + Clone + std::fmt::Debug, - T: Readable + Writable, + R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, - S::Error: From, - E: From + From, + WS: TrieStore>, + S::Error: From, + WS::Error: From, + E: From + From + From + From + From, { - let delete_op = operations::delete:: as *mut c_void; + let mut txn = write_environment.create_read_write_txn()?; + let delete_op = operations::delete::, WR::ReadWriteTransaction, WS, E> + as *mut c_void; let _counter = TestValue::before_operation(delete_op); - let delete_result = - operations::delete::(correlation_id, txn, store, root, key_to_delete); + let delete_result = operations::delete::, _, WS, E>( + correlation_id, + &mut txn, + write_store, + root, + key_to_delete, + ); let counter = TestValue::after_operation(delete_op); assert_eq!(counter, 0, "Delete should never deserialize a value"); + txn.commit()?; let delete_result = delete_result?; + let rtxn = environment.create_read_write_txn()?; if let DeleteResult::Deleted(new_root) = delete_result { - operations::check_integrity::(correlation_id, txn, store, vec![new_root])?; + operations::check_integrity::(correlation_id, &rtxn, store, vec![new_root])?; } + rtxn.commit()?; Ok(delete_result) } @@ -33,10 +48,13 @@ mod partial_tries { use super::*; use crate::storage::trie_store::operations::DeleteResult; - fn delete_from_partial_trie_had_expected_results<'a, K, V, R, S, E>( + #[allow(clippy::too_many_arguments)] + fn delete_from_partial_trie_had_expected_results<'a, K, V, R, WR, S, WS, E>( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + write_store: &WS, root: &Digest, key_to_delete: &K, expected_root_after_delete: &Digest, @@ -46,17 +64,27 @@ mod partial_tries { K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, V: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { - let mut txn = environment.create_read_write_txn()?; + let rtxn = environment.create_read_txn()?; // The assert below only works with partial tries - assert_eq!(store.get(&txn, expected_root_after_delete)?, None); - let root_after_delete = match checked_delete::( + assert_eq!(store.get(&rtxn, expected_root_after_delete)?, None); + rtxn.commit()?; + let root_after_delete = match checked_delete::( correlation_id, - &mut txn, + environment, + write_environment, store, + write_store, root, key_to_delete, )? { @@ -65,9 +93,11 @@ mod partial_tries { DeleteResult::RootNotFound => panic!("root should be found"), }; assert_eq!(root_after_delete, *expected_root_after_delete); + let rtxn = environment.create_read_txn()?; for HashedTrie { hash, trie } in expected_tries_after_delete { - assert_eq!(store.get(&txn, hash)?, Some(trie.clone())); + assert_eq!(store.get(&rtxn, hash)?, Some(trie.clone())); } + rtxn.commit()?; Ok(()) } @@ -80,9 +110,19 @@ mod partial_tries { let key_to_delete = &TEST_LEAVES[i]; let context = LmdbTestContext::new(&initial_tries).unwrap(); - delete_from_partial_trie_had_expected_results::( + delete_from_partial_trie_had_expected_results::< + TestKey, + TestValue, + _, + _, + _, + _, + error::Error, + >( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_root_hash, key_to_delete.key().unwrap(), @@ -102,9 +142,19 @@ mod partial_tries { let key_to_delete = &TEST_LEAVES[i]; let context = InMemoryTestContext::new(&initial_tries).unwrap(); - delete_from_partial_trie_had_expected_results::( + delete_from_partial_trie_had_expected_results::< + TestKey, + TestValue, + _, + _, + _, + _, + error::Error, + >( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_root_hash, key_to_delete.key().unwrap(), @@ -115,10 +165,21 @@ mod partial_tries { } } - fn delete_non_existent_key_from_partial_trie_should_return_does_not_exist<'a, K, V, R, S, E>( + fn delete_non_existent_key_from_partial_trie_should_return_does_not_exist< + 'a, + K, + V, + R, + WR, + S, + WS, + E, + >( correlation_id: CorrelationId, environment: &'a R, + write_environment: &'a WR, store: &S, + write_store: &WS, root: &Digest, key_to_delete: &K, ) -> Result<(), E> @@ -126,13 +187,26 @@ mod partial_tries { K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, V: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, R: TransactionSource<'a, Handle = S::Handle>, + WR: TransactionSource<'a, Handle = WS::Handle>, S: TrieStore, + WS: TrieStore>, S::Error: From, - E: From + From + From, + WS::Error: From, + E: From + + From + + From + + From + + From, { - let mut txn = environment.create_read_write_txn()?; - match checked_delete::(correlation_id, &mut txn, store, root, key_to_delete)? - { + match checked_delete::( + correlation_id, + environment, + write_environment, + store, + write_store, + root, + key_to_delete, + )? { DeleteResult::Deleted(_) => panic!("should not delete"), DeleteResult::DoesNotExist => Ok(()), DeleteResult::RootNotFound => panic!("root should be found"), @@ -152,10 +226,14 @@ mod partial_tries { TestValue, _, _, + _, + _, error::Error, >( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_root_hash, key_to_delete.key().unwrap(), @@ -177,10 +255,14 @@ mod partial_tries { TestValue, _, _, + _, + _, error::Error, >( correlation_id, &context.environment, + &context.environment, + &context.store, &context.store, &initial_root_hash, key_to_delete.key().unwrap(), @@ -233,24 +315,26 @@ mod full_tries { K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, V: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, R: TransactionSource<'a, Handle = S::Handle>, - S: TrieStore, + S: TrieStore>, S::Error: From, E: From + From + From, { let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; - let write_op = write:: as *mut c_void; + let write_op = + write::, R::ReadWriteTransaction, S, E> as *mut c_void; let mut roots = Vec::new(); // Insert the key-value pairs, keeping track of the roots as we go for (key, value) in pairs { + let new_value = PanickingFromBytes::new(value.clone()); let _counter = TestValue::before_operation(write_op); - if let WriteResult::Written(new_root) = write::( + if let WriteResult::Written(new_root) = write::, _, _, E>( correlation_id, &mut txn, store, roots.last().unwrap_or(root), key, - value, + &new_value, )? { roots.push(new_root); } else { @@ -261,11 +345,17 @@ mod full_tries { } // Delete the key-value pairs, checking the resulting roots as we go let mut current_root = roots.pop().unwrap_or_else(|| root.to_owned()); - let delete_op = delete:: as *mut c_void; + let delete_op = + delete::, R::ReadWriteTransaction, S, E> as *mut c_void; for (key, _value) in pairs.iter().rev() { let _counter = TestValue::before_operation(delete_op); - let delete_result = - delete::(correlation_id, &mut txn, store, ¤t_root, key); + let delete_result = delete::, _, _, E>( + correlation_id, + &mut txn, + store, + ¤t_root, + key, + ); let counter = TestValue::after_operation(delete_op); assert_eq!(counter, 0, "Delete should never deserialize a value"); if let DeleteResult::Deleted(new_root) = delete_result? { @@ -340,19 +430,26 @@ mod full_tries { K: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, V: ToBytes + FromBytes + Clone + Eq + std::fmt::Debug, R: TransactionSource<'a, Handle = S::Handle>, - S: TrieStore, + S: TrieStore>, S::Error: From, E: From + From + From, { let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; - let write_op = write:: as *mut c_void; + let write_op = + write::, R::ReadWriteTransaction, S, E> as *mut c_void; let mut expected_root = *root; // Insert the key-value pairs, keeping track of the roots as we go for (key, value) in pairs_to_insert.iter() { let _counter = TestValue::before_operation(write_op); - if let WriteResult::Written(new_root) = - write::(correlation_id, &mut txn, store, &expected_root, key, value)? - { + let new_value = PanickingFromBytes::new(value.clone()); + if let WriteResult::Written(new_root) = write::, _, _, E>( + correlation_id, + &mut txn, + store, + &expected_root, + key, + &new_value, + )? { expected_root = new_root; } else { panic!("Could not write pair") @@ -360,11 +457,17 @@ mod full_tries { let counter = TestValue::after_operation(write_op); assert_eq!(counter, 0, "Write should never deserialize a value"); } - let delete_op = delete:: as *mut c_void; + let delete_op = + delete::, R::ReadWriteTransaction, S, E> as *mut c_void; for key in keys_to_delete.iter() { let _counter = TestValue::before_operation(delete_op); - let delete_result = - delete::(correlation_id, &mut txn, store, &expected_root, key); + let delete_result = delete::, _, _, E>( + correlation_id, + &mut txn, + store, + &expected_root, + key, + ); let counter = TestValue::after_operation(delete_op); assert_eq!(counter, 0, "Delete should never deserialize a value"); match delete_result? { @@ -386,9 +489,15 @@ mod full_tries { let mut actual_root = *root; for (key, value) in pairs_to_insert_less_deleted.iter() { let _counter = TestValue::before_operation(write_op); - if let WriteResult::Written(new_root) = - write::(correlation_id, &mut txn, store, &actual_root, key, value)? - { + let new_value = PanickingFromBytes::new(value.clone()); + if let WriteResult::Written(new_root) = write::, _, _, E>( + correlation_id, + &mut txn, + store, + &actual_root, + key, + &new_value, + )? { actual_root = new_root; } else { panic!("Could not write pair") diff --git a/execution_engine/src/storage/trie_store/operations/tests/scan.rs b/execution_engine/src/storage/trie_store/operations/tests/scan.rs index 76311cef40..e8ed97707a 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/scan.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/scan.rs @@ -5,7 +5,7 @@ use crate::{ shared::newtypes::CorrelationId, storage::{ error::{self, in_memory}, - trie_store::operations::{scan_raw, TrieScanRaw}, + trie_store::operations::{scan_raw, store_wrappers, TrieScanRaw}, }, }; @@ -27,9 +27,10 @@ where .get(&txn, root_hash)? .expect("check_scan received an invalid root hash"); let root_bytes = root.to_bytes()?; + let store = store_wrappers::NonDeserializingStore::new(store); let TrieScanRaw { mut tip, parents } = scan_raw::( &txn, - store, + &store, key, root_bytes.into(), )?; From a510b828b48f5eaf30dd9fee1b7f13999ac4a229 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Fri, 16 Jun 2023 14:22:57 +0000 Subject: [PATCH 460/735] ee/trie_store/operations: remove `from_bytes` caller tracking Remove the tracking of callers to `from_bytes` when using `write` and `delete` operations. `V` is guaranteed not to be deserialized in these cases due to the usage of `PanickingFromBytes` and `NonDeserializingStore`. Signed-off-by: Alexandru Sardan --- .../trie_store/operations/tests/delete.rs | 28 ------------------- .../trie_store/operations/tests/mod.rs | 8 ------ 2 files changed, 36 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/tests/delete.rs b/execution_engine/src/storage/trie_store/operations/tests/delete.rs index 73f2101f1b..cf661445fb 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/delete.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/delete.rs @@ -22,9 +22,6 @@ where E: From + From + From + From + From, { let mut txn = write_environment.create_read_write_txn()?; - let delete_op = operations::delete::, WR::ReadWriteTransaction, WS, E> - as *mut c_void; - let _counter = TestValue::before_operation(delete_op); let delete_result = operations::delete::, _, WS, E>( correlation_id, &mut txn, @@ -32,8 +29,6 @@ where root, key_to_delete, ); - let counter = TestValue::after_operation(delete_op); - assert_eq!(counter, 0, "Delete should never deserialize a value"); txn.commit()?; let delete_result = delete_result?; let rtxn = environment.create_read_write_txn()?; @@ -320,14 +315,11 @@ mod full_tries { E: From + From + From, { let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; - let write_op = - write::, R::ReadWriteTransaction, S, E> as *mut c_void; let mut roots = Vec::new(); // Insert the key-value pairs, keeping track of the roots as we go for (key, value) in pairs { let new_value = PanickingFromBytes::new(value.clone()); - let _counter = TestValue::before_operation(write_op); if let WriteResult::Written(new_root) = write::, _, _, E>( correlation_id, &mut txn, @@ -340,15 +332,10 @@ mod full_tries { } else { panic!("Could not write pair") } - let counter = TestValue::after_operation(write_op); - assert_eq!(counter, 0, "Write should never deserialize a value"); } // Delete the key-value pairs, checking the resulting roots as we go let mut current_root = roots.pop().unwrap_or_else(|| root.to_owned()); - let delete_op = - delete::, R::ReadWriteTransaction, S, E> as *mut c_void; for (key, _value) in pairs.iter().rev() { - let _counter = TestValue::before_operation(delete_op); let delete_result = delete::, _, _, E>( correlation_id, &mut txn, @@ -356,8 +343,6 @@ mod full_tries { ¤t_root, key, ); - let counter = TestValue::after_operation(delete_op); - assert_eq!(counter, 0, "Delete should never deserialize a value"); if let DeleteResult::Deleted(new_root) = delete_result? { current_root = roots.pop().unwrap_or_else(|| root.to_owned()); assert_eq!(new_root, current_root); @@ -435,12 +420,9 @@ mod full_tries { E: From + From + From, { let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; - let write_op = - write::, R::ReadWriteTransaction, S, E> as *mut c_void; let mut expected_root = *root; // Insert the key-value pairs, keeping track of the roots as we go for (key, value) in pairs_to_insert.iter() { - let _counter = TestValue::before_operation(write_op); let new_value = PanickingFromBytes::new(value.clone()); if let WriteResult::Written(new_root) = write::, _, _, E>( correlation_id, @@ -454,13 +436,8 @@ mod full_tries { } else { panic!("Could not write pair") } - let counter = TestValue::after_operation(write_op); - assert_eq!(counter, 0, "Write should never deserialize a value"); } - let delete_op = - delete::, R::ReadWriteTransaction, S, E> as *mut c_void; for key in keys_to_delete.iter() { - let _counter = TestValue::before_operation(delete_op); let delete_result = delete::, _, _, E>( correlation_id, &mut txn, @@ -468,8 +445,6 @@ mod full_tries { &expected_root, key, ); - let counter = TestValue::after_operation(delete_op); - assert_eq!(counter, 0, "Delete should never deserialize a value"); match delete_result? { DeleteResult::Deleted(new_root) => { expected_root = new_root; @@ -488,7 +463,6 @@ mod full_tries { let mut actual_root = *root; for (key, value) in pairs_to_insert_less_deleted.iter() { - let _counter = TestValue::before_operation(write_op); let new_value = PanickingFromBytes::new(value.clone()); if let WriteResult::Written(new_root) = write::, _, _, E>( correlation_id, @@ -502,8 +476,6 @@ mod full_tries { } else { panic!("Could not write pair") } - let counter = TestValue::after_operation(write_op); - assert_eq!(counter, 0, "Write should never deserialize a value"); } assert_eq!(expected_root, actual_root, "Expected did not match actual"); diff --git a/execution_engine/src/storage/trie_store/operations/tests/mod.rs b/execution_engine/src/storage/trie_store/operations/tests/mod.rs index 1997499110..ff6647b0a4 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/mod.rs @@ -836,12 +836,10 @@ where } let mut root_hash = root_hash.to_owned(); let mut txn: R::ReadWriteTransaction = environment.create_read_write_txn()?; - let write_op = write::, R::ReadWriteTransaction, S, E> as *mut c_void; for leaf in leaves.iter() { if let Trie::Leaf { key, value } = leaf { let new_value = PanickingFromBytes::new(value.clone()); - let _counter = TestValue::before_operation(write_op); let write_result = write::, _, _, E>( correlation_id, &mut txn, @@ -850,8 +848,6 @@ where key, &new_value, )?; - let counter = TestValue::after_operation(write_op); - assert_eq!(counter, 0, "Write should never deserialize a value"); match write_result { WriteResult::Written(hash) => { root_hash = hash; @@ -990,9 +986,7 @@ where let mut root_hash = root_hash.to_owned(); let mut txn = environment.create_read_write_txn()?; - let write_op = write::, R::ReadWriteTransaction, S, E> as *mut c_void; for (key, value) in pairs.iter() { - let _counter = TestValue::before_operation(write_op); let new_val = PanickingFromBytes::new(value.clone()); match write::, _, _, E>( correlation_id, @@ -1008,8 +1002,6 @@ where WriteResult::AlreadyExists => (), WriteResult::RootNotFound => panic!("write_leaves given an invalid root"), }; - let counter = TestValue::after_operation(write_op); - assert_eq!(counter, 0, "Write should never deserialize a value"); results.push(root_hash); } txn.commit()?; From 97d27d46ecc468f1edd8a288c679b0a4e3380a02 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Mon, 19 Jun 2023 09:19:49 +0000 Subject: [PATCH 461/735] ee/trie_store: add `OnceDeserializingStore` wrapper Add `OnceDeserializingStore` wrapper used to ensure that the read operation does not deserialize a value more than once. Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/operations/mod.rs | 2 + .../trie_store/operations/store_wrappers.rs | 71 ++++++++++++++++++- 2 files changed, 71 insertions(+), 2 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 651266fcfc..03927f9129 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -61,6 +61,8 @@ where { let path: Vec = key.to_bytes()?; + let store = store_wrappers::OnceDeserializingStore::new(store); + let mut depth: usize = 0; let mut current: Trie = match store.get(txn, root)? { Some(root) => root, diff --git a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs index 271c2a00f5..53c5af0aa6 100644 --- a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -1,7 +1,11 @@ -use std::marker::PhantomData; +use std::{ + collections::HashSet, + marker::PhantomData, + sync::{Arc, Mutex}, +}; use casper_hashing::Digest; -use casper_types::bytesrepr::{self, FromBytes}; +use casper_types::bytesrepr::{self, FromBytes, ToBytes}; use crate::storage::{store::Store, trie::Trie, trie_store::TrieStore}; @@ -54,3 +58,66 @@ where } } } + +pub(crate) struct OnceDeserializingStore<'a, K: ToBytes, V: ToBytes, S: TrieStore> { + store: &'a S, + #[cfg(debug_assertions)] + deserialize_tracking: Arc>>, + _marker: PhantomData<*const (K, V)>, +} + +impl<'a, K, V, S> OnceDeserializingStore<'a, K, V, S> +where + K: ToBytes, + V: ToBytes, + S: TrieStore, +{ + pub(crate) fn new(store: &'a S) -> Self { + Self { + store, + deserialize_tracking: Arc::new(Mutex::new(HashSet::new())), + _marker: PhantomData, + } + } +} + +impl<'a, K, V, S> Store> for OnceDeserializingStore<'a, K, V, S> +where + K: ToBytes, + V: ToBytes, + S: TrieStore, +{ + type Error = S::Error; + + type Handle = S::Handle; + + #[inline] + fn handle(&self) -> Self::Handle { + self.store.handle() + } + + #[inline] + fn deserialize_value(&self, bytes: &[u8]) -> Result, bytesrepr::Error> + where + Trie: FromBytes, + { + #[cfg(debug_assertions)] + { + let trie: Trie = bytesrepr::deserialize_from_slice(bytes)?; + if let Trie::Leaf { .. } = trie { + let trie_hash = trie.trie_hash()?; + let mut tracking = self.deserialize_tracking.lock().expect("Poisoned lock"); + if tracking.get(&trie_hash).is_some() { + panic!("Tried to deserialize a value more than once."); + } else { + tracking.insert(trie_hash); + } + } + Ok(trie) + } + #[cfg(not(debug_assertions))] + { + bytesrepr::deserialize_from_slice(bytes) + } + } +} From 78688727f51fdb7bb2a65893e339891ca190053f Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Mon, 19 Jun 2023 10:23:18 +0000 Subject: [PATCH 462/735] ee/trie_store: fix build and clippy issues Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/operations/store_wrappers.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs index 53c5af0aa6..903e67ca58 100644 --- a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -1,6 +1,7 @@ +use std::marker::PhantomData; +#[cfg(debug_assertions)] use std::{ collections::HashSet, - marker::PhantomData, sync::{Arc, Mutex}, }; @@ -75,6 +76,7 @@ where pub(crate) fn new(store: &'a S) -> Self { Self { store, + #[cfg(debug_assertions)] deserialize_tracking: Arc::new(Mutex::new(HashSet::new())), _marker: PhantomData, } From caf23cccedfa826c564317e0ff32f2b6a427559a Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Mon, 19 Jun 2023 11:28:08 +0000 Subject: [PATCH 463/735] ee/trie_store/tests: remove caller tracking for deserializing V Now we use `OnceDeserializingStore` to ensure that the `read` operation does not deserialize `V`. Remove the usage of the caller tracking that used `backtrace` since it's not needed anymore. Signed-off-by: Alexandru Sardan --- Cargo.lock | 1 - execution_engine/Cargo.toml | 1 - .../trie_store/operations/tests/mod.rs | 98 +------------------ .../operations/tests/synchronize.rs | 29 ------ 4 files changed, 1 insertion(+), 128 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 50f783bc7e..b32da12bb2 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -429,7 +429,6 @@ version = "4.0.0" dependencies = [ "anyhow", "assert_matches", - "backtrace", "base16", "bincode", "casper-hashing", diff --git a/execution_engine/Cargo.toml b/execution_engine/Cargo.toml index 62d60a68a0..074d20d362 100644 --- a/execution_engine/Cargo.toml +++ b/execution_engine/Cargo.toml @@ -56,7 +56,6 @@ criterion = "0.3.5" proptest = "1.0.0" tempfile = "3.4.0" walrus = "0.19.0" -backtrace = "0.3.67" [features] default = ["gens"] diff --git a/execution_engine/src/storage/trie_store/operations/tests/mod.rs b/execution_engine/src/storage/trie_store/operations/tests/mod.rs index ff6647b0a4..6283ce3ec8 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/mod.rs @@ -8,15 +8,8 @@ mod scan; mod synchronize; mod write; -use std::{ - cell::RefCell, - collections::{BTreeMap, HashMap}, - convert, - ops::Not, -}; +use std::{collections::HashMap, convert, ops::Not}; -use backtrace::Backtrace; -use libc::c_void; use lmdb::DatabaseFlags; use tempfile::{tempdir, TempDir}; @@ -72,58 +65,10 @@ impl FromBytes for TestKey { const TEST_VAL_LENGTH: usize = 6; -type Counter = BTreeMap<*mut c_void, usize>; - -thread_local! { - static FROMBYTES_INSIDE_OPERATION: RefCell = RefCell::new(Default::default()); - static FROMBYTES_COUNTER: RefCell = RefCell::new(Default::default()); -} - /// A short value type for tests. #[derive(Debug, Copy, Clone, PartialEq, Eq)] struct TestValue([u8; TEST_VAL_LENGTH]); -impl TestValue { - pub(crate) fn before_operation(op: *mut c_void) -> usize { - FROMBYTES_INSIDE_OPERATION.with(|flag| { - *flag.borrow_mut().entry(op).or_default() += 1; - }); - - FROMBYTES_COUNTER.with(|counter| { - let mut counter = counter.borrow_mut(); - let old = counter.get(&op).copied().unwrap_or_default(); - *counter.entry(op).or_default() = 0; - old - }) - } - - pub(crate) fn after_operation(op: *mut c_void) -> usize { - FROMBYTES_INSIDE_OPERATION.with(|flag| { - *flag.borrow_mut().get_mut(&op).unwrap() -= 1; - }); - - FROMBYTES_COUNTER.with(|counter| counter.borrow().get(&op).copied().unwrap()) - } - - pub(crate) fn increment(backtrace: &Backtrace) { - let flag = FROMBYTES_INSIDE_OPERATION.with(|flag| flag.borrow().clone()); - let operations: Vec<*mut c_void> = flag.keys().cloned().collect(); - let op = if let Some(op) = first_caller_from_set(backtrace, &operations) { - op - } else { - return; - }; - - if let Some(value) = flag.get(&op) { - if *value > 0 { - FROMBYTES_COUNTER.with(|counter| { - *counter.borrow_mut().entry(op).or_default() += 1; - }); - } - } - } -} - impl ToBytes for TestValue { fn to_bytes(&self) -> Result, bytesrepr::Error> { Ok(self.0.to_vec()) @@ -134,28 +79,12 @@ impl ToBytes for TestValue { } } -// Determine if there exists a caller in the backtrace that matches any of the specified symbols -fn first_caller_from_set(backtrace: &Backtrace, symbols: &[*mut c_void]) -> Option<*mut c_void> { - if symbols.is_empty() { - return None; - } - - backtrace - .frames() - .iter() - .find(|frame| symbols.contains(&frame.symbol_address())) - .map(|frame| frame.symbol_address()) -} - impl FromBytes for TestValue { fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> { let (key, rem) = bytes.split_at(TEST_VAL_LENGTH); let mut ret = [0u8; TEST_VAL_LENGTH]; ret.copy_from_slice(key); - let backtrace = Backtrace::new_unresolved(); - TestValue::increment(&backtrace); - Ok((TestValue(ret), rem)) } } @@ -669,16 +598,9 @@ where for leaf in leaves { if let Trie::Leaf { key, value } = leaf { - let read_op = read:: as *mut c_void; - let _counter = TestValue::before_operation(read_op); let maybe_value: ReadResult = read::<_, _, _, _, E>(correlation_id, txn, store, root, key)?; - let counter = TestValue::after_operation(read_op); if let ReadResult::Found(value_found) = maybe_value { - assert_eq!( - counter, 1, - "Read should deserialize value only once if the key is found" - ); ret.push(*value == value_found); } } else { @@ -915,27 +837,9 @@ where E: From + From + From, { let txn: R::ReadTransaction = environment.create_read_txn()?; - let read_op = read:: as *mut c_void; for (index, root_hash) in root_hashes.iter().enumerate() { for (key, value) in &pairs[..=index] { - let _counter = TestValue::before_operation(read_op); let result = read::<_, _, _, _, E>(correlation_id, &txn, store, root_hash, key)?; - let counter = TestValue::after_operation(read_op); - - match result { - ReadResult::Found(_) => { - assert_eq!( - counter, 1, - "Read should deserialize value only once if the key is found" - ); - } - ReadResult::NotFound | ReadResult::RootNotFound => { - assert_eq!( - counter, 0, - "Read should never deserialize value if the key is not found" - ); - } - } if ReadResult::Found(*value) != result { return Ok(false); diff --git a/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs b/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs index 4e766cad4f..548dad0dfb 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/synchronize.rs @@ -1,6 +1,5 @@ use std::{borrow::Cow, collections::HashSet}; -use libc::c_void; use num_traits::FromPrimitive; use casper_hashing::Digest; @@ -189,12 +188,10 @@ where { let source_txn: R::ReadTransaction = source_environment.create_read_txn()?; let target_txn: R::ReadTransaction = target_environment.create_read_txn()?; - let read_op = operations::read:: as *mut c_void; let target_keys = operations::keys::<_, _, _, _>(correlation_id, &target_txn, target_store, root) .collect::, S::Error>>()?; for key in target_keys { - let _counter = TestValue::before_operation(read_op); let maybe_value: ReadResult = operations::read::<_, _, _, _, E>( correlation_id, &source_txn, @@ -202,18 +199,6 @@ where root, &key, )?; - let counter = TestValue::after_operation(read_op); - if maybe_value.is_found() { - assert_eq!( - counter, 1, - "Read should deserialize value only once if the key is found" - ); - } else { - assert_eq!( - counter, 0, - "Read should never deserialize value if the key is not found" - ); - } assert!(maybe_value.is_found()) } source_txn.commit()?; @@ -228,8 +213,6 @@ where operations::keys::<_, _, _, _>(correlation_id, &source_txn, source_store, root) .collect::, S::Error>>()?; for key in source_keys { - let read_op = operations::read:: as *mut c_void; - let _counter = TestValue::before_operation(read_op); let maybe_value: ReadResult = operations::read::<_, _, _, _, E>( correlation_id, &target_txn, @@ -237,18 +220,6 @@ where root, &key, )?; - let counter = TestValue::after_operation(read_op); - if maybe_value.is_found() { - assert_eq!( - counter, 1, - "Read should deserialize value only once if the key is found" - ); - } else { - assert_eq!( - counter, 0, - "Read should never deserialize value if the key is not found" - ); - } assert!(maybe_value.is_found()) } source_txn.commit()?; From de501e14c1fb3e214a59c901cbccd569ac03812b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 19 Jun 2023 17:56:38 +0200 Subject: [PATCH 464/735] juliet: Cleanup code after merging two main branches of `juliet` implementation --- juliet/src/header.rs | 6 +- juliet/src/lib.rs | 29 +- juliet/src/multiframe.rs | 536 -------------------------------- juliet/src/reader.rs | 4 +- juliet/src/reader/multiframe.rs | 57 ++-- juliet/src/varint.rs | 11 +- 6 files changed, 59 insertions(+), 584 deletions(-) delete mode 100644 juliet/src/multiframe.rs diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 7c6557e36d..f93afec909 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -136,11 +136,11 @@ impl Header { #[inline(always)] pub fn parse(mut raw: [u8; Header::SIZE]) -> Option { // Zero-out reserved bits. - raw[0] &= Self::KIND_ERR_MASK | Self::KIND_ERR_BIT; + raw[0] &= Self::KIND_ERR_MASK | Self::KIND_MASK | Self::KIND_ERR_BIT; let header = Header(raw); - // Check that the kind byte is within valid range and mask reserved bits. + // Check that the kind byte is within valid range. if header.is_error() { if (header.kind_byte() & Self::KIND_ERR_MASK) > ErrorKind::HIGHEST as u8 { return None; @@ -150,7 +150,7 @@ impl Header { return None; } - // Ensure the 4th bit is not set. + // Ensure the 4th bit is not set, since the error kind bits are superset of kind bits. if header.0[0] & Self::KIND_MASK != header.0[0] { return None; } diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 88b6031901..7c3e0aa533 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,3 +1,8 @@ +//! A `juliet` protocol implementation. +//! +//! This crate implements the juliet multiplexing protocol as laid out in the juliet RFC. It aims to +//! be a secure, simple, easy to verify/review implementation that is still reasonably performant. + use std::{ fmt::{self, Display}, num::NonZeroU32, @@ -78,7 +83,7 @@ impl From for u16 { } } -/// The outcome from a parsing operation over a potentially incomplete buffer. +/// The outcome of a parsing operation on a potentially incomplete buffer. #[derive(Debug)] #[must_use] pub enum Outcome { @@ -103,7 +108,8 @@ impl Outcome { pub fn expect(self, msg: &str) -> T { match self { Outcome::Success(value) => value, - Outcome::Incomplete(_) | Outcome::Err(_) => panic!("{}", msg), + Outcome::Incomplete(_) => panic!("incomplete: {}", msg), + Outcome::Err(_) => panic!("error: {}", msg), } } @@ -120,23 +126,6 @@ impl Outcome { } } - /// Unwraps the outcome, similar to [`std::result::Result::unwrap`]. - /// - /// Returns the value of [`Outcome::Success`]. - /// - /// # Panics - /// - /// Will panic if the [`Outcome`] is not [`Outcome::Success`]. - #[inline] - #[track_caller] - pub fn unwrap(self) -> T { - match self { - Outcome::Incomplete(n) => panic!("called unwrap on incomplete({}) outcome", n), - Outcome::Err(_err) => panic!("called unwrap on error outcome"), - Outcome::Success(value) => value, - } - } - #[inline] #[track_caller] pub fn incomplete(remaining: usize) -> Outcome { @@ -149,7 +138,7 @@ impl Outcome { /// `try!` for [`Outcome`]. /// -/// Will return [`Outcome::Incomplete`] and [`Outcome::Err`] upwards, or unwrap the value found in +/// Will pass [`Outcome::Incomplete`] and [`Outcome::Err`] upwards, or unwrap the value found in /// [`Outcome::Success`]. #[macro_export] macro_rules! try_outcome { diff --git a/juliet/src/multiframe.rs b/juliet/src/multiframe.rs deleted file mode 100644 index 421885dfc5..0000000000 --- a/juliet/src/multiframe.rs +++ /dev/null @@ -1,536 +0,0 @@ -use std::{ - default, mem, - num::{NonZeroU32, NonZeroU8}, -}; - -use bytes::{Buf, BytesMut}; - -use crate::{ - header::{ErrorKind, Header}, - try_outcome, - varint::{decode_varint32, ParsedU32}, - Outcome::{self, Err, Incomplete, Success}, -}; - -/// A multi-frame message reader. -/// -/// Processes frames into message from a given input stream as laid out in the juliet RFC. -#[derive(Debug, Default)] -pub(crate) enum MultiFrameReader { - #[default] - Ready, - InProgress { - header: Header, - msg_payload: BytesMut, - msg_len: u32, - }, -} - -impl MultiFrameReader { - /// Process a single frame from a buffer. - /// - /// Assumes that `header` was the first [`Header::SIZE`] preceding `buffer`. Will advance - /// `buffer` past header and payload if and only a successful frame was parsed. - /// - /// Returns a completed message payload, or `None` if a frame was consumed, but no message - /// completed yet. - /// - /// # Panics - /// - /// Panics when compiled with debug profiles if `max_frame_size` is less than 10 or `buffer` is - /// shorter than [`Header::SIZE`]. - pub(crate) fn process_frame( - &mut self, - header: Header, - buffer: &mut BytesMut, - max_payload_length: u32, - max_frame_size: u32, - ) -> Outcome, Header> { - debug_assert!( - max_frame_size >= 10, - "maximum frame size must be enough to hold header and varint" - ); - debug_assert!( - buffer.len() >= Header::SIZE, - "buffer is too small to contain header" - ); - - // Check if we got a continuation of a message send already in progress. - match self { - MultiFrameReader::InProgress { - header: pheader, - msg_payload, - msg_len, - } if *pheader == header => { - let max_frame_payload = max_frame_size - Header::SIZE as u32; - let remaining = (*msg_len - msg_payload.len() as u32).min(max_frame_payload); - - // If we don't have enough data yet, return number of bytes missing. - let end = (remaining as u64 + Header::SIZE as u64); - if buffer.len() < end as usize { - return Incomplete( - NonZeroU32::new((end - buffer.len() as u64) as u32).unwrap(), - ); - } - - // Otherwise, we're good to append to the payload. - msg_payload.extend_from_slice(&buffer[Header::SIZE..(end as usize)]); - msg_payload.advance(end as usize); - - return Success(if remaining <= max_frame_payload { - let rv = mem::take(msg_payload); - *self = MultiFrameReader::Ready; - Some(rv) - } else { - None - }); - } - _ => (), - } - - // At this point we have to expect a starting segment. - let payload_info = try_outcome!(find_start_segment( - &buffer[Header::SIZE..], - max_payload_length, - max_frame_size - ) - .map_err(|err| err.into_header())); - - // Discard the header and length, then split off the payload. - buffer.advance(Header::SIZE + payload_info.start.get() as usize); - let segment_payload = buffer.split_to(payload_info.len() as usize); - - // We can finally determine our outcome. - match self { - MultiFrameReader::InProgress { .. } => { - if !payload_info.is_complete() { - Err(header.with_err(ErrorKind::InProgress)) - } else { - Success(Some(segment_payload)) - } - } - MultiFrameReader::Ready => { - if !payload_info.is_complete() { - // Begin a new multi-frame read. - *self = MultiFrameReader::InProgress { - header, - msg_payload: segment_payload, - msg_len: payload_info.message_length, - }; - // The next minimum read is another header. - Incomplete(NonZeroU32::new(Header::SIZE as u32).unwrap()) - } else { - // The entire message is contained, no need to change state. - Success(Some(segment_payload)) - } - } - } - } -} - -/// Information about the payload of a starting segment. -#[derive(Debug)] -struct PayloadInfo { - /// Total size of the entire message's payload (across all frames). - message_length: u32, - /// Start of the payload, relative to segment start. - start: NonZeroU8, - /// End of the payload, relative to segment start. - end: u32, -} - -impl PayloadInfo { - /// Returns the length of the payload in the segment. - #[inline(always)] - fn len(&self) -> u32 { - self.end - self.start.get() as u32 - } - - /// Returns whether the entire message payload is contained in the starting segment. - #[inline(always)] - fn is_complete(&self) -> bool { - self.message_length == self.len() - } -} - -/// Error parsing starting segment. -#[derive(Copy, Clone, Debug)] -enum SegmentError { - /// The advertised message payload length exceeds the configured limit. - ExceedsMaxPayloadLength, - /// The varint at the beginning could not be parsed. - BadVarInt, -} - -impl SegmentError { - fn into_header(self) -> Header { - match self { - SegmentError::ExceedsMaxPayloadLength => todo!(), - SegmentError::BadVarInt => todo!(), - } - } -} - -/// Given a potential segment buffer (which is a frame without the header), finds a start segment. -/// -/// Assumes that the first bytes of the buffer are a [`crate::varint`] encoded length. Returns the -/// geometry of the segment that was found. -fn find_start_segment( - segment_buf: &[u8], - max_payload_length: u32, - max_frame_size: u32, -) -> Outcome { - let ParsedU32 { - offset: start, - value: message_length, - } = try_outcome!(decode_varint32(segment_buf).map_err(|_| SegmentError::BadVarInt)); - - // Ensure it is within allowed range. - if message_length > max_payload_length { - return Err(SegmentError::ExceedsMaxPayloadLength); - } - - // Determine the largest payload that can still fit into this frame. - let full_payload_size = max_frame_size - (start.get() as u32 + Header::SIZE as u32); - - // Calculate start and end of payload in this frame, the latter capped by the frame itself. - let end = start.get() as u32 + full_payload_size.min(message_length); - - // Determine if segment is complete. - if end as usize > segment_buf.len() { - let missing = end as usize - segment_buf.len(); - - // Note: Missing is guaranteed to be <= `u32::MAX` here. - Incomplete(NonZeroU32::new(missing as u32).unwrap()) - } else { - Success(PayloadInfo { - message_length, - start, - end, - }) - } -} - -#[cfg(test)] -mod tests { - use std::{ - io::Write, - num::{NonZeroU32, NonZeroU8}, - }; - - use bytes::{Buf, BufMut, BytesMut}; - use proptest::{collection::vec, prelude::any, proptest}; - - use crate::{ - header::{ - Header, - Kind::{self, RequestPl}, - }, - multiframe::{PayloadInfo, SegmentError}, - varint::Varint32, - ChannelId, Id, Outcome, - }; - - use super::{find_start_segment, MultiFrameReader}; - - const FRAME_MAX_PAYLOAD: usize = 500; - const MAX_FRAME_SIZE: usize = - FRAME_MAX_PAYLOAD + Header::SIZE + Varint32::encode(FRAME_MAX_PAYLOAD as u32).len(); - - proptest! { - #[test] - fn single_frame_message(payload in vec(any::(), FRAME_MAX_PAYLOAD), garbage in vec(any::(), 10)) { - do_single_frame_messages(payload, garbage); - } - } - - #[test] - fn payload_info_math() { - let info = PayloadInfo { - message_length: 0, - start: NonZeroU8::new(5).unwrap(), - end: 5, - }; - - assert_eq!(info.len(), 0); - assert!(info.is_complete()); - - let info = PayloadInfo { - message_length: 10, - start: NonZeroU8::new(5).unwrap(), - end: 15, - }; - - assert_eq!(info.len(), 10); - assert!(info.is_complete()); - - let info = PayloadInfo { - message_length: 100_000, - start: NonZeroU8::new(2).unwrap(), - end: 10, - }; - - assert_eq!(info.len(), 8); - assert!(!info.is_complete()); - } - - #[test] - fn find_start_segment_simple_cases() { - // Empty case should return 1. - assert!(matches!( - find_start_segment(&[], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Incomplete(n) if n.get() == 1 - )); - - // With a length 0, we should get a result after 1 byte. - assert!(matches!( - find_start_segment(&[0x00], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Success(PayloadInfo { - message_length: 0, - start, - end: 1 - }) if start.get() == 1 - )); - - // Additional byte should return the correct amount of extra required bytes. - assert!(matches!( - find_start_segment(&[0x7], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Incomplete(n) if n.get() == 7 - )); - assert!(matches!( - find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Incomplete(n) if n.get() == 4 - )); - assert!(matches!( - find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Incomplete(n) if n.get() == 1 - )); - assert!(matches!( - find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Success(PayloadInfo { - message_length: 7, - start, - end: 8 - }) if start.get() == 1 - )); - - // We can also check if additional data is ignored properly. - assert!(matches!( - find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xEE], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Success(PayloadInfo { - message_length: 7, - start, - end: 8 - }) if start.get() == 1 - )); - assert!(matches!( - find_start_segment(&[0x7, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xEE, 0xEE, 0xEE, - 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE], FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Success(PayloadInfo { - message_length: 7, - start, - end: 8 - }) if start.get() == 1 - )); - - // Finally, try with larger value (that doesn't fit into length encoding of 1). - // 0x83 0x01 == 0b1000_0011 = 131. - let mut buf = vec![0x83, 0x01, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE]; - - assert!(matches!( - find_start_segment(&buf, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Incomplete(n) if n.get() == 126 - )); - buf.extend(vec![0xFF; 126]); - assert!(matches!( - find_start_segment(&buf, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Success(PayloadInfo { - message_length: 131, - start, - end: 133 - }) if start.get() == 2 - )); - buf.extend(vec![0x77; 999]); - assert!(matches!( - find_start_segment(&buf, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Success(PayloadInfo { - message_length: 131, - start, - end: 133 - }) if start.get() == 2 - )); - } - - #[test] - fn find_start_segment_errors() { - let bad_varint = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF]; - assert!(matches!( - find_start_segment(&bad_varint, FRAME_MAX_PAYLOAD as u32, MAX_FRAME_SIZE as u32), - Outcome::Err(SegmentError::BadVarInt) - )); - - // We expect the size error to be reported immediately, not after parsing the frame. - let exceeds_size = [0x09]; - assert!(matches!( - find_start_segment(&exceeds_size, 8, MAX_FRAME_SIZE as u32), - Outcome::Err(SegmentError::ExceedsMaxPayloadLength) - )); - // This should happen regardless of the maximum frame being larger or smaller than the - // maximum payload. - assert!(matches!( - find_start_segment(&exceeds_size, 8, 4), - Outcome::Err(SegmentError::ExceedsMaxPayloadLength) - )); - } - - #[test] - fn single_frame_message_simple_example() { - let mut payload = Vec::new(); - payload.extend([0xAA, 0xBB, 0xCC, 0xDD, 0xEE]); - do_single_frame_messages(payload, vec![]); - } - - fn do_single_frame_messages(payload: Vec, garbage: Vec) { - let buffer = BytesMut::new(); - let mut writer = buffer.writer(); - - let chan = ChannelId::new(2); - let id = Id::new(12345); - - let header = Header::new(RequestPl, chan, id); - - // Manually prepare a suitable message buffer. - let payload_varint = Varint32::encode(payload.len() as u32); - writer.write_all(header.as_ref()).unwrap(); - writer.write_all(payload_varint.as_ref()).unwrap(); - writer.write_all(&payload).unwrap(); - - let buffer = writer.into_inner(); - // Sanity check constraints. - if payload.len() == FRAME_MAX_PAYLOAD { - assert_eq!(buffer.len(), MAX_FRAME_SIZE); - } - let mut writer = buffer.writer(); - - // Append some random garbage. - writer.write_all(&garbage).unwrap(); - - // Buffer is now ready to read. - let buffer = writer.into_inner().freeze(); - - // We run this test for every possible read increment up to the entire buffer length. - for bytes_per_read in 4..=buffer.len() { - let mut source = buffer.clone(); - let mut buffer = BytesMut::new(); - let mut state = MultiFrameReader::default(); - - while source.has_remaining() { - // Determine how much we can read (cannot go past source buffer). - let bytes_to_read = bytes_per_read.min(source.remaining()); - assert!(bytes_to_read > 0); - - let chunk = source.copy_to_bytes(bytes_to_read); - buffer.extend_from_slice(&chunk); - - // Calculate how much data we are still expecting to be reported missing. - let missing = - Header::SIZE as isize + payload_varint.len() as isize + payload.len() as isize - - buffer.len() as isize; - - // Preserve the buffer length, so we can check whether it remains unchanged later. - let buffer_length = buffer.remaining(); - - // Having not read the entire header, we are not supposed to call the parser yet. - if buffer.remaining() < Header::SIZE { - continue; - } - - let outcome = state.process_frame( - header, - &mut buffer, - FRAME_MAX_PAYLOAD as u32, - MAX_FRAME_SIZE as u32, - ); - - // Check if our assumptions were true. - if missing <= 0 { - // We should have a complete frame. - let received = outcome - .expect("expected complete message after finally reading enough bytes") - .expect("did not expect in-progress result once message was complete"); - - assert_eq!(received, payload); - - // Check the correct amount of data was removed. - assert_eq!( - buffer.remaining() as isize, - garbage.len() as isize + missing - ); - - // TODO: Check remainder is exactly garbage. - break; - } else { - // Read was incomplete. If we were not past the header and length varint, the - // expected next read is one bytes (indeterminate), otherwise the remainder. - if let Outcome::Incomplete(n) = outcome { - let expected_incomplete = - if buffer.remaining() >= Header::SIZE + payload_varint.len() { - n.get() as isize - } else { - 1 - }; - assert_eq!(expected_incomplete, n.get() as isize); - } else { - panic!("expected incomplete outcome, got {:?}", outcome) - } - - // Ensure no data is consumed unless a complete frame is read. - assert_eq!(buffer_length, buffer.remaining()); - } - } - } - } - - #[test] - fn allows_interspersed_messages() { - #[derive(Debug)] - struct TestPayload(Vec); - - #[derive(Debug)] - enum TestMessage { - Request { id: u16 }, - Response { id: u16 }, - RequestWithPayload { id: u16, payload: TestPayload }, - ResponseWithPayload { id: u16, payload: TestPayload }, - RequestCancellation { id: u16 }, - ResponseCancellation { id: u16 }, - } - - todo!() - } - - #[test] - fn forbids_exceeding_maximum_message_size() { - todo!() - } - - #[test] - fn bad_varint_causes_error() { - todo!() - } - - #[test] - fn invalid_channel_causes_error() { - todo!() - } - - #[test] - fn varying_message_sizes() { - todo!("proptest") - } - - #[test] - fn fuzz_multi_frame_reader() { - todo!() - } -} diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 49d7b8bbb1..dd44873507 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -26,7 +26,7 @@ struct Channel { request_limit: u32, max_request_payload_size: u32, max_response_payload_size: u32, - current_multiframe_receive: MultiframeSendState, + current_multiframe_receive: MultiframeReceiver, cancellation_allowance: u32, } @@ -56,7 +56,7 @@ pub enum CompletedRead { ResponseCancellation { id: Id }, } -use self::multiframe::MultiframeSendState; +use self::multiframe::MultiframeReceiver; impl ReaderState { pub fn process(&mut self, mut buffer: BytesMut) -> Outcome { diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs index 2ad244b5f7..0b20e0d7a5 100644 --- a/juliet/src/reader/multiframe.rs +++ b/juliet/src/reader/multiframe.rs @@ -1,3 +1,8 @@ +//! Multiframe reading support. +//! +//! The juliet protocol supports multi-frame messages, which are subject to addtional rules and +//! checks. The resulting state machine is encoded in the [`MultiframeReceiver`] type. + use std::{marker::PhantomData, mem, ops::Deref}; use bytes::{Buf, BytesMut}; @@ -11,9 +16,9 @@ use crate::{ /// Bytes offset with a lifetime. /// -/// Ensures that offsets that are depending on a buffer not being modified are not invalidated. +/// Helper type that ensures that offsets that are depending on a buffer are not being invalidated through accidental modification. struct Index<'a> { - /// The value of the `Index`. + /// The byte offset this `Index` represents. index: usize, /// Buffer it is tied to. buffer: PhantomData<&'a BytesMut>, @@ -28,7 +33,7 @@ impl<'a> Deref for Index<'a> { } impl<'a> Index<'a> { - /// Creates a new `Index` with value `index`, borrowing `buffer`. + /// Creates a new `Index` with offset value `index`, borrowing `buffer`. fn new(buffer: &'a BytesMut, index: usize) -> Self { let _ = buffer; Index { @@ -39,9 +44,10 @@ impl<'a> Index<'a> { } /// The multi-frame message receival state of a single channel, as specified in the RFC. -#[derive(Debug)] -pub(super) enum MultiframeSendState { +#[derive(Debug, Default)] +pub(super) enum MultiframeReceiver { /// The channel is ready to start receiving a new multi-frame message. + #[default] Ready, /// A multi-frame message transfer is currently in progress. InProgress { @@ -54,18 +60,28 @@ pub(super) enum MultiframeSendState { }, } -impl MultiframeSendState { +impl MultiframeReceiver { /// Attempt to process a single multi-frame message frame. /// - /// The caller must only calls this method if it has determined that the frame in `buffer` is - /// one that requires a payload. + /// The caller MUST only call this method if it has determined that the frame in `buffer` is one + /// that includes a payload. If this is the case, the entire receive `buffer` should be passed + /// to this function. + /// + /// If a message payload matching the given header has been succesfully completed, both header + /// and payload are consumed from the `buffer`, the payload being returned. If a starting or + /// intermediate segment was processed without completing the message, both are still consume, + /// but `None` is returned instead. This method will never consume more than one frame. + /// + /// On any error, [`Outcome::Err`] with a suitable header to return to the sender is returned. /// - /// If a message payload matching the given header has been succesfully completed, returns it. - /// If a starting or intermediate segment was processed without completing the message, returns - /// `None` instead. This method will never consume more than one frame. + /// `max_payload_size` is the maximum size of a payload across multiple frames. If it is + /// exceeded, the `payload_exceeded_error_kind` function is used to construct an error `Header` + /// to return. /// - /// Assumes that `header` is the first [`Header::SIZE`] bytes of `buffer`. Will advance `buffer` - /// past header and payload only on success. + /// # Panics + /// + /// Panics in debug builds if `max_frame_size` is too small to hold a maximum sized varint and + /// a header. pub(super) fn accept( &mut self, header: Header, @@ -80,7 +96,7 @@ impl MultiframeSendState { ); match self { - MultiframeSendState::Ready => { + MultiframeReceiver::Ready => { // We have a new segment, which has a variable size. let segment_buf = &buffer[Header::SIZE..]; @@ -121,7 +137,7 @@ impl MultiframeSendState { let partial_payload = buffer.split_to(max_frame_size as usize); // We are now in progress of reading a payload. - *self = MultiframeSendState::InProgress { + *self = MultiframeReceiver::InProgress { header, payload: partial_payload, total_payload_size: payload_size.value, @@ -133,7 +149,7 @@ impl MultiframeSendState { } } } - MultiframeSendState::InProgress { + MultiframeReceiver::InProgress { header: active_header, payload, total_payload_size, @@ -179,7 +195,7 @@ impl MultiframeSendState { buffer.advance(bytes_remaining); let finished_payload = mem::take(payload); - *self = MultiframeSendState::Ready; + *self = MultiframeReceiver::Ready; Success(Some(finished_payload)) } @@ -187,10 +203,13 @@ impl MultiframeSendState { } } + /// Determines whether given `new_header` would be a new transfer if accepted. + /// + /// If `false`, `new_header` would indicate a continuation of an already in-progress transfer. pub(super) fn is_new_transfer(&self, new_header: Header) -> bool { match self { - MultiframeSendState::Ready => true, - MultiframeSendState::InProgress { header, .. } => *header != new_header, + MultiframeReceiver::Ready => true, + MultiframeReceiver::InProgress { header, .. } => *header != new_header, } } } diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 0487ddcbda..24067f1817 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -11,7 +11,7 @@ use crate::Outcome::{self, Err, Incomplete, Success}; const VARINT_MASK: u8 = 0b0111_1111; /// The only possible error for a varint32 parsing, value overflow. -#[derive(Debug)] +#[derive(Clone, Copy, Debug)] pub struct Overflow; /// A successful parse of a varint32. @@ -19,7 +19,7 @@ pub struct Overflow; /// Contains both the decoded value and the bytes consumed. pub struct ParsedU32 { /// The number of bytes consumed by the varint32. - // The `NonZeroU8` allows for niche optimization of compound types. + // Note: The `NonZeroU8` allows for niche optimization of compound types containing this type. pub offset: NonZeroU8, /// The actual parsed value. pub value: u32, @@ -50,7 +50,9 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { /// An encoded varint32. /// -/// Internally these are stored as six byte arrays to make passing around convenient. +/// Internally these are stored as six byte arrays to make passing around convenient. Since the +/// maximum length a 32 bit varint can posses is 5 bytes, the 6th bytes is used to record the +/// length. #[repr(transparent)] #[derive(Copy, Clone, Debug)] pub struct Varint32([u8; 6]); @@ -123,7 +125,8 @@ mod tests { #[track_caller] fn check_decode(expected: u32, input: &[u8]) { - let ParsedU32 { offset, value } = decode_varint32(input).unwrap(); + let ParsedU32 { offset, value } = + decode_varint32(input).expect("expected decoding to succeed"); assert_eq!(expected, value); assert_eq!(offset.get() as usize, input.len()); From 1f7df5becd5816ae580ae0c26621dfdb8cbde033 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Tue, 20 Jun 2023 16:29:04 +0200 Subject: [PATCH 465/735] Remove unused wasmi-validation crate --- Cargo.lock | 1 - execution_engine/Cargo.toml | 1 - 2 files changed, 2 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 0f8322e01d..b3a7c6a782 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -468,7 +468,6 @@ dependencies = [ "uuid", "walrus", "wasmi", - "wasmi-validation", ] [[package]] diff --git a/execution_engine/Cargo.toml b/execution_engine/Cargo.toml index 34ef9a093b..823cf28d7b 100644 --- a/execution_engine/Cargo.toml +++ b/execution_engine/Cargo.toml @@ -48,7 +48,6 @@ tracing = "0.1.18" uint = "0.9.0" uuid = { version = "0.8.1", features = ["serde", "v4"] } wasmi = "0.13.2" -wasmi-validation = "0.5.0" [dev-dependencies] assert_matches = "1.3.0" From 5831d4f06e6088fc386df19767c689a187117ec3 Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Thu, 27 Apr 2023 19:54:02 +0300 Subject: [PATCH 466/735] Add test for unsupported opcodes Signed-off-by: George Pisaltu --- execution_engine/src/shared/wasm_prep.rs | 317 ++++++++++++++++++++++- 1 file changed, 316 insertions(+), 1 deletion(-) diff --git a/execution_engine/src/shared/wasm_prep.rs b/execution_engine/src/shared/wasm_prep.rs index e7ca94e110..2a3af6f252 100644 --- a/execution_engine/src/shared/wasm_prep.rs +++ b/execution_engine/src/shared/wasm_prep.rs @@ -443,7 +443,7 @@ mod tests { builder, elements::{CodeSection, Instructions}, }; - use walrus::{FunctionBuilder, ModuleConfig, ValType}; + use walrus::{FunctionBuilder, ModuleConfig, ValType, ir::{Instr, Unop, UnaryOp}}; use super::*; @@ -651,4 +651,319 @@ mod tests { error, ); } + + #[test] + fn should_not_accept_atomics_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_atomics = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_atomics.func_body().atomic_fence(); + + let func_with_atomics = func_with_atomics.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_atomics); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Atomic operations not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_bulk_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_bulk = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_bulk.func_body().memory_copy(memory_id, memory_id); + + let func_with_bulk = func_with_bulk.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_bulk); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Bulk memory operations are not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_simd_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_simd = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_simd.func_body().v128_bitselect(); + + let func_with_simd = func_with_simd.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_simd); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "SIMD operations are not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_sign_ext_i32_e8s_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_sign_ext = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_sign_ext.func_body().i32_const(0); + + { + let mut body = func_with_sign_ext.func_body(); + let instructions = body.instrs_mut(); + let (instr, _) = instructions.get_mut(0).unwrap(); + *instr = Instr::Unop(Unop { op: UnaryOp::I32Extend8S }); + } + + let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_sign_ext); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Sign extension operations are not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_sign_ext_i32_e16s_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_sign_ext = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_sign_ext.func_body().i32_const(0); + + { + let mut body = func_with_sign_ext.func_body(); + let instructions = body.instrs_mut(); + let (instr, _) = instructions.get_mut(0).unwrap(); + *instr = Instr::Unop(Unop { op: UnaryOp::I32Extend16S }); + } + + let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_sign_ext); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Sign extension operations are not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_sign_ext_i64_e8s_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_sign_ext = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_sign_ext.func_body().i32_const(0); + + { + let mut body = func_with_sign_ext.func_body(); + let instructions = body.instrs_mut(); + let (instr, _) = instructions.get_mut(0).unwrap(); + *instr = Instr::Unop(Unop { op: UnaryOp::I64Extend8S }); + } + + let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_sign_ext); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Sign extension operations are not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_sign_ext_i64_e16s_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_sign_ext = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_sign_ext.func_body().i32_const(0); + + { + let mut body = func_with_sign_ext.func_body(); + let instructions = body.instrs_mut(); + let (instr, _) = instructions.get_mut(0).unwrap(); + *instr = Instr::Unop(Unop { op: UnaryOp::I64Extend16S }); + } + + let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_sign_ext); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Sign extension operations are not supported"), + "{:?}", + error, + ); + } + + #[test] + fn should_not_accept_sign_ext_i64_e32s_proposal_wasm() { + let module_bytes = { + let mut module = walrus::Module::with_config(ModuleConfig::new()); + + let _memory_id = module.memories.add_local(false, 11, None); + + let mut func_with_sign_ext = + FunctionBuilder::new(&mut module.types, &[], &[]); + + func_with_sign_ext.func_body().i32_const(0); + + { + let mut body = func_with_sign_ext.func_body(); + let instructions = body.instrs_mut(); + let (instr, _) = instructions.get_mut(0).unwrap(); + *instr = Instr::Unop(Unop { op: UnaryOp::I64Extend32S }); + } + + let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); + + let mut call_func = FunctionBuilder::new(&mut module.types, &[], &[]); + + call_func.func_body().call(func_with_sign_ext); + + let call = call_func.finish(Vec::new(), &mut module.funcs); + + module.exports.add(DEFAULT_ENTRY_POINT_NAME, call); + + module.emit_wasm() + }; + let error = preprocess(WasmConfig::default(), &module_bytes) + .expect_err("should fail with an error"); + assert!( + matches!(&error, PreprocessingError::Deserialize(msg) + // TODO: GH-3762 will improve the error message for unsupported wasm proposals. + if msg == "Sign extension operations are not supported"), + "{:?}", + error, + ); + } } From 94a096384f945a5cce335133d82b30f42f954c2c Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Fri, 28 Apr 2023 15:21:22 +0300 Subject: [PATCH 467/735] Add handling of unknown opcodes and fix styling Signed-off-by: George Pisaltu --- execution_engine/src/shared/wasm_prep.rs | 88 +++++++++++++++--------- 1 file changed, 55 insertions(+), 33 deletions(-) diff --git a/execution_engine/src/shared/wasm_prep.rs b/execution_engine/src/shared/wasm_prep.rs index 2a3af6f252..a0951becbf 100644 --- a/execution_engine/src/shared/wasm_prep.rs +++ b/execution_engine/src/shared/wasm_prep.rs @@ -8,6 +8,12 @@ use thiserror::Error; use super::wasm_config::WasmConfig; use crate::core::execution; +const ATOMIC_OPCODE_PREFIX: u8 = 0xfe; +const BULK_OPCODE_PREFIX: u8 = 0xfc; +const SIGN_EXT_OPCODE_START: u8 = 0xc0; +const SIGN_EXT_OPCODE_END: u8 = 0xc4; +const SIMD_OPCODE_PREFIX: u8 = 0xfd; + const DEFAULT_GAS_MODULE_NAME: &str = "env"; /// Name of the internal gas function injected by [`casper_wasm_utils::inject_gas_counter`]. const INTERNAL_GAS_FUNCTION_NAME: &str = "gas"; @@ -405,7 +411,27 @@ pub fn preprocess( /// Returns a parity Module from the given bytes without making modifications or checking limits. pub fn deserialize(module_bytes: &[u8]) -> Result { - parity_wasm::deserialize_buffer::(module_bytes).map_err(Into::into) + parity_wasm::deserialize_buffer::(module_bytes).map_err(|deserialize_error| { + match deserialize_error { + parity_wasm::SerializationError::UnknownOpcode(BULK_OPCODE_PREFIX) => { + PreprocessingError::Deserialize( + "Bulk memory operations are not supported".to_string(), + ) + } + parity_wasm::SerializationError::UnknownOpcode(SIMD_OPCODE_PREFIX) => { + PreprocessingError::Deserialize("SIMD operations are not supported".to_string()) + } + parity_wasm::SerializationError::UnknownOpcode(ATOMIC_OPCODE_PREFIX) => { + PreprocessingError::Deserialize("Atomic operations are not supported".to_string()) + } + parity_wasm::SerializationError::UnknownOpcode( + SIGN_EXT_OPCODE_START..=SIGN_EXT_OPCODE_END, + ) => PreprocessingError::Deserialize( + "Sign extension operations are not supported".to_string(), + ), + _ => deserialize_error.into(), + } + }) } /// Creates new wasm module from entry points. @@ -443,7 +469,10 @@ mod tests { builder, elements::{CodeSection, Instructions}, }; - use walrus::{FunctionBuilder, ModuleConfig, ValType, ir::{Instr, Unop, UnaryOp}}; + use walrus::{ + ir::{Instr, UnaryOp, Unop}, + FunctionBuilder, ModuleConfig, ValType, + }; use super::*; @@ -645,7 +674,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Enable the multi_value feature to deserialize more than one function result"), "{:?}", error, @@ -659,8 +687,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_atomics = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_atomics = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_atomics.func_body().atomic_fence(); @@ -680,8 +707,7 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. - if msg == "Atomic operations not supported"), + if msg == "Atomic operations are not supported"), "{:?}", error, ); @@ -694,8 +720,7 @@ mod tests { let memory_id = module.memories.add_local(false, 11, None); - let mut func_with_bulk = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_bulk = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_bulk.func_body().memory_copy(memory_id, memory_id); @@ -715,7 +740,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Bulk memory operations are not supported"), "{:?}", error, @@ -729,8 +753,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_simd = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_simd = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_simd.func_body().v128_bitselect(); @@ -750,7 +773,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "SIMD operations are not supported"), "{:?}", error, @@ -764,8 +786,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_sign_ext = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_sign_ext = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_sign_ext.func_body().i32_const(0); @@ -773,7 +794,9 @@ mod tests { let mut body = func_with_sign_ext.func_body(); let instructions = body.instrs_mut(); let (instr, _) = instructions.get_mut(0).unwrap(); - *instr = Instr::Unop(Unop { op: UnaryOp::I32Extend8S }); + *instr = Instr::Unop(Unop { + op: UnaryOp::I32Extend8S, + }); } let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); @@ -792,7 +815,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Sign extension operations are not supported"), "{:?}", error, @@ -806,8 +828,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_sign_ext = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_sign_ext = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_sign_ext.func_body().i32_const(0); @@ -815,7 +836,9 @@ mod tests { let mut body = func_with_sign_ext.func_body(); let instructions = body.instrs_mut(); let (instr, _) = instructions.get_mut(0).unwrap(); - *instr = Instr::Unop(Unop { op: UnaryOp::I32Extend16S }); + *instr = Instr::Unop(Unop { + op: UnaryOp::I32Extend16S, + }); } let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); @@ -834,7 +857,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Sign extension operations are not supported"), "{:?}", error, @@ -848,8 +870,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_sign_ext = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_sign_ext = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_sign_ext.func_body().i32_const(0); @@ -857,7 +878,9 @@ mod tests { let mut body = func_with_sign_ext.func_body(); let instructions = body.instrs_mut(); let (instr, _) = instructions.get_mut(0).unwrap(); - *instr = Instr::Unop(Unop { op: UnaryOp::I64Extend8S }); + *instr = Instr::Unop(Unop { + op: UnaryOp::I64Extend8S, + }); } let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); @@ -876,7 +899,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Sign extension operations are not supported"), "{:?}", error, @@ -890,8 +912,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_sign_ext = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_sign_ext = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_sign_ext.func_body().i32_const(0); @@ -899,7 +920,9 @@ mod tests { let mut body = func_with_sign_ext.func_body(); let instructions = body.instrs_mut(); let (instr, _) = instructions.get_mut(0).unwrap(); - *instr = Instr::Unop(Unop { op: UnaryOp::I64Extend16S }); + *instr = Instr::Unop(Unop { + op: UnaryOp::I64Extend16S, + }); } let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); @@ -918,7 +941,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Sign extension operations are not supported"), "{:?}", error, @@ -932,8 +954,7 @@ mod tests { let _memory_id = module.memories.add_local(false, 11, None); - let mut func_with_sign_ext = - FunctionBuilder::new(&mut module.types, &[], &[]); + let mut func_with_sign_ext = FunctionBuilder::new(&mut module.types, &[], &[]); func_with_sign_ext.func_body().i32_const(0); @@ -941,7 +962,9 @@ mod tests { let mut body = func_with_sign_ext.func_body(); let instructions = body.instrs_mut(); let (instr, _) = instructions.get_mut(0).unwrap(); - *instr = Instr::Unop(Unop { op: UnaryOp::I64Extend32S }); + *instr = Instr::Unop(Unop { + op: UnaryOp::I64Extend32S, + }); } let func_with_sign_ext = func_with_sign_ext.finish(vec![], &mut module.funcs); @@ -960,7 +983,6 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - // TODO: GH-3762 will improve the error message for unsupported wasm proposals. if msg == "Sign extension operations are not supported"), "{:?}", error, From 5bd8f10aa2ffe3938348105009cf271d9c6093f7 Mon Sep 17 00:00:00 2001 From: George Pisaltu Date: Thu, 22 Jun 2023 17:35:07 +0300 Subject: [PATCH 468/735] Fix `TestRng` import in reactor Signed-off-by: George Pisaltu --- node/src/reactor.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index e46e8674a9..908cce0d33 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -62,6 +62,7 @@ use tracing_futures::Instrument; #[cfg(test)] use crate::components::ComponentState; +#[cfg(test)] use casper_types::testing::TestRng; #[cfg(target_os = "linux")] From ba8e4ceb9e0760f7248eddd3f11a429cc78036a0 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Thu, 22 Jun 2023 16:29:32 +0000 Subject: [PATCH 469/735] ee/trie_store: refactor LazyTrieLeaf into LazilyDeserializedTrie This provides stronger type checking and allows us to remove useless paths in the code that are unreachable. Signed-off-by: Alexandru Sardan --- execution_engine/benches/trie_bench.rs | 16 +-- execution_engine/src/storage/trie/gens.rs | 6 +- execution_engine/src/storage/trie/mod.rs | 132 ++++++++++++++---- execution_engine/src/storage/trie/tests.rs | 80 ++++++++++- .../src/storage/trie_store/lmdb.rs | 8 +- .../src/storage/trie_store/operations/mod.rs | 111 ++++++--------- .../trie_store/operations/tests/keys.rs | 2 +- .../trie_store/operations/tests/scan.rs | 25 +++- .../src/storage/trie_store/tests/mod.rs | 5 +- 9 files changed, 256 insertions(+), 129 deletions(-) diff --git a/execution_engine/benches/trie_bench.rs b/execution_engine/benches/trie_bench.rs index ef11e40cdf..6c91a8528e 100644 --- a/execution_engine/benches/trie_bench.rs +++ b/execution_engine/benches/trie_bench.rs @@ -42,19 +42,19 @@ fn deserialize_trie_node(b: &mut Bencher) { } fn serialize_trie_node_pointer(b: &mut Bencher) { - let node = Trie::::Extension { - affix: (0..255).collect(), - pointer: Pointer::NodePointer(Digest::hash([0; 32])), - }; + let node = Trie::::extension( + (0..255).collect(), + Pointer::NodePointer(Digest::hash([0; 32])), + ); b.iter(|| ToBytes::to_bytes(black_box(&node))); } fn deserialize_trie_node_pointer(b: &mut Bencher) { - let node = Trie::::Extension { - affix: (0..255).collect(), - pointer: Pointer::NodePointer(Digest::hash([0; 32])), - }; + let node = Trie::::extension( + (0..255).collect(), + Pointer::NodePointer(Digest::hash([0; 32])), + ); let node_bytes = node.to_bytes().unwrap(); b.iter(|| Trie::::from_bytes(black_box(&node_bytes))); diff --git a/execution_engine/src/storage/trie/gens.rs b/execution_engine/src/storage/trie/gens.rs index 53485c3b25..955324ea22 100644 --- a/execution_engine/src/storage/trie/gens.rs +++ b/execution_engine/src/storage/trie/gens.rs @@ -32,10 +32,8 @@ pub fn trie_leaf_arb() -> impl Strategy> { } pub fn trie_extension_arb() -> impl Strategy> { - (vec(any::(), 0..32), trie_pointer_arb()).prop_map(|(affix, pointer)| Trie::Extension { - affix: affix.into(), - pointer, - }) + (vec(any::(), 0..32), trie_pointer_arb()) + .prop_map(|(affix, pointer)| Trie::extension(affix, pointer)) } pub fn trie_node_arb() -> impl Strategy> { diff --git a/execution_engine/src/storage/trie/mod.rs b/execution_engine/src/storage/trie/mod.rs index e896a5c88f..5adaa857f1 100644 --- a/execution_engine/src/storage/trie/mod.rs +++ b/execution_engine/src/storage/trie/mod.rs @@ -1,7 +1,7 @@ //! Core types for a Merkle Trie use std::{ - convert::TryInto, + convert::{TryFrom, TryInto}, fmt::{self, Debug, Display, Formatter}, iter::Flatten, mem::MaybeUninit, @@ -9,7 +9,6 @@ use std::{ }; use datasize::DataSize; -use either::Either; use num_derive::{FromPrimitive, ToPrimitive}; use num_traits::{FromPrimitive, ToPrimitive}; use serde::{ @@ -511,40 +510,97 @@ impl Trie { } } -pub(crate) type LazyTrieLeaf = Either>; - -pub(crate) fn lazy_trie_tag(bytes: &[u8]) -> Option { - bytes.first().copied().and_then(TrieTag::from_u8) +#[derive(Debug, Clone, PartialEq)] +pub(crate) enum LazilyDeserializedTrie { + Leaf(Bytes), + Node { + pointer_block: Box, + }, + Extension { + /// Extension node affix bytes. + affix: Bytes, + /// Extension node pointer. + pointer: Pointer, + }, } -pub(crate) fn lazy_trie_deserialize( - bytes: Bytes, -) -> Result, bytesrepr::Error> -where - K: FromBytes, - V: FromBytes, -{ - let trie_tag = lazy_trie_tag(&bytes); +impl LazilyDeserializedTrie { + pub(crate) fn iter_children(&self) -> DescendantsIterator { + match self { + LazilyDeserializedTrie::Leaf(_) => { + // Leaf bytes does not have any children + DescendantsIterator::ZeroOrOne(None) + } + LazilyDeserializedTrie::Node { pointer_block } => DescendantsIterator::PointerBlock { + iter: pointer_block.0.iter().flatten(), + }, + LazilyDeserializedTrie::Extension { pointer, .. } => { + DescendantsIterator::ZeroOrOne(Some(pointer.into_hash())) + } + } + } - if trie_tag == Some(TrieTag::Leaf) { - Ok(LazyTrieLeaf::Left(bytes)) - } else { - let deserialized: Trie = bytesrepr::deserialize(bytes.into())?; - Ok(LazyTrieLeaf::Right(deserialized)) + pub(crate) fn try_deserialize_leaf_key( + &self, + ) -> Result<(K, &[u8]), bytesrepr::Error> { + match self { + LazilyDeserializedTrie::Leaf(leaf_bytes) => { + let (tag_byte, rem) = u8::from_bytes(leaf_bytes)?; + let tag = TrieTag::from_u8(tag_byte).ok_or(bytesrepr::Error::Formatting)?; + if let TrieTag::Leaf = tag { + K::from_bytes(rem) + } else { + Err(bytesrepr::Error::Formatting) + } + } + LazilyDeserializedTrie::Node { .. } | LazilyDeserializedTrie::Extension { .. } => { + Err(bytesrepr::Error::Formatting) + } + } } } -pub(crate) fn lazy_trie_iter_children( - trie_bytes: &LazyTrieLeaf, -) -> DescendantsIterator { - match trie_bytes { - LazyTrieLeaf::Left(_) => { - // Leaf bytes does not have any children - DescendantsIterator::ZeroOrOne(None) +impl FromBytes for LazilyDeserializedTrie { + fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> { + let (tag_byte, rem) = u8::from_bytes(bytes)?; + let tag = TrieTag::from_u8(tag_byte).ok_or(bytesrepr::Error::Formatting)?; + match tag { + TrieTag::Leaf => Ok((LazilyDeserializedTrie::Leaf(bytes.into()), &[])), + TrieTag::Node => { + let (pointer_block, rem) = PointerBlock::from_bytes(rem)?; + Ok(( + LazilyDeserializedTrie::Node { + pointer_block: Box::new(pointer_block), + }, + rem, + )) + } + TrieTag::Extension => { + let (affix, rem) = FromBytes::from_bytes(rem)?; + let (pointer, rem) = Pointer::from_bytes(rem)?; + Ok((LazilyDeserializedTrie::Extension { affix, pointer }, rem)) + } } - LazyTrieLeaf::Right(trie) => { - // Trie::Node or Trie::Extension has children - trie.iter_children() + } +} + +impl TryFrom> for LazilyDeserializedTrie +where + K: ToBytes, + V: ToBytes, +{ + type Error = bytesrepr::Error; + + fn try_from(value: Trie) -> Result { + match value { + Trie::Leaf { .. } => { + let serialized_bytes = ToBytes::to_bytes(&value)?; + Ok(LazilyDeserializedTrie::Leaf(serialized_bytes.into())) + } + Trie::Node { pointer_block } => Ok(LazilyDeserializedTrie::Node { pointer_block }), + Trie::Extension { affix, pointer } => { + Ok(LazilyDeserializedTrie::Extension { affix, pointer }) + } } } } @@ -642,6 +698,24 @@ impl FromBytes for Trie { } } +impl TryFrom for Trie { + type Error = bytesrepr::Error; + + fn try_from(value: LazilyDeserializedTrie) -> Result { + match value { + LazilyDeserializedTrie::Leaf(_) => { + let (key, value_bytes) = value.try_deserialize_leaf_key()?; + let value = bytesrepr::deserialize_from_slice(value_bytes)?; + Ok(Self::Leaf { key, value }) + } + LazilyDeserializedTrie::Node { pointer_block } => Ok(Self::Node { pointer_block }), + LazilyDeserializedTrie::Extension { affix, pointer } => { + Ok(Self::Extension { affix, pointer }) + } + } + } +} + pub(crate) mod operations { use casper_types::bytesrepr::{self, ToBytes}; diff --git a/execution_engine/src/storage/trie/tests.rs b/execution_engine/src/storage/trie/tests.rs index b0f87a43f0..a2febde94c 100644 --- a/execution_engine/src/storage/trie/tests.rs +++ b/execution_engine/src/storage/trie/tests.rs @@ -92,12 +92,73 @@ mod pointer_block { } mod proptests { + use std::convert::TryInto; + use proptest::prelude::*; use casper_hashing::Digest; - use casper_types::{bytesrepr, gens::key_arb, Key, StoredValue}; + use casper_types::{ + bytesrepr::{self, deserialize_from_slice, FromBytes, ToBytes}, + gens::key_arb, + Key, StoredValue, + }; + + use crate::storage::trie::{gens::*, LazilyDeserializedTrie, PointerBlock, Trie}; + + fn test_trie_roundtrip_to_lazy_trie(trie: &Trie, check_key: bool) + where + K: ToBytes + FromBytes + PartialEq + std::fmt::Debug + Clone, + V: ToBytes + FromBytes + PartialEq + std::fmt::Debug + Clone, + { + let serialized = ToBytes::to_bytes(trie).expect("Unable to serialize data"); + + let expected_lazy_trie_leaf: LazilyDeserializedTrie = (*trie) + .clone() + .try_into() + .expect("Cannot convert Trie to LazilyDeserializedTrie"); + + let deserialized_from_slice: LazilyDeserializedTrie = + deserialize_from_slice(&serialized).expect("Unable to deserialize data"); + assert_eq!(expected_lazy_trie_leaf, deserialized_from_slice); + assert_eq!( + *trie, + deserialized_from_slice + .clone() + .try_into() + .expect("Expected to be able to convert LazilyDeserializedTrie to Trie") + ); + if check_key { + let (key, _) = deserialized_from_slice + .try_deserialize_leaf_key::() + .expect("Should have been able to deserialize key"); + assert_eq!(key, *trie.key().unwrap()); + } else { + assert!(deserialized_from_slice + .try_deserialize_leaf_key::() + .is_err()); + } - use crate::storage::trie::{gens::*, PointerBlock, Trie}; + let deserialized: LazilyDeserializedTrie = + bytesrepr::deserialize(serialized).expect("Unable to deserialize data"); + assert_eq!(expected_lazy_trie_leaf, deserialized); + assert_eq!( + *trie, + deserialized + .clone() + .try_into() + .expect("Expected to be able to convert LazilyDeserializedTrie to Trie") + ); + if check_key { + let (key, _) = deserialized + .try_deserialize_leaf_key::() + .expect("Should have been able to deserialize key"); + assert_eq!(key, *trie.key().unwrap()); + } else { + assert!(deserialized_from_slice + .try_deserialize_leaf_key::() + .is_err()); + } + } proptest! { #[test] @@ -120,6 +181,21 @@ mod proptests { bytesrepr::test_serialization_roundtrip(&trie_leaf); } + #[test] + fn bytesrepr_roundtrip_trie_leaf_to_lazy_trie(trie_leaf in trie_leaf_arb()) { + test_trie_roundtrip_to_lazy_trie(&trie_leaf, true) + } + + #[test] + fn bytesrepr_roundtrip_trie_extension_to_lazy_trie(trie_extension in trie_extension_arb()) { + test_trie_roundtrip_to_lazy_trie(&trie_extension, false) + } + + #[test] + fn bytesrepr_roundtrip_trie_node_to_lazy_trie(trie_node in trie_node_arb()) { + test_trie_roundtrip_to_lazy_trie(&trie_node, false); + } + #[test] fn bytesrepr_roundtrip_trie_extension(trie_extension in trie_extension_arb()) { bytesrepr::test_serialization_roundtrip(&trie_extension); diff --git a/execution_engine/src/storage/trie_store/lmdb.rs b/execution_engine/src/storage/trie_store/lmdb.rs index 01131e3659..9586346de8 100644 --- a/execution_engine/src/storage/trie_store/lmdb.rs +++ b/execution_engine/src/storage/trie_store/lmdb.rs @@ -122,7 +122,7 @@ use crate::storage::{ global_state::CommitError, store::Store, transaction_source::{lmdb::LmdbEnvironment, Readable, TransactionSource, Writable}, - trie::{self, LazyTrieLeaf, Trie}, + trie::{LazilyDeserializedTrie, Trie}, trie_store::{self, TrieStore}, }; @@ -219,9 +219,9 @@ impl ScratchTrieStore { continue; }; - let lazy_trie: LazyTrieLeaf = - trie::lazy_trie_deserialize(trie_bytes.clone())?; - tries_to_write.extend(trie::lazy_trie_iter_children(&lazy_trie)); + let lazy_trie: LazilyDeserializedTrie = + bytesrepr::deserialize(trie_bytes.clone().into())?; + tries_to_write.extend(lazy_trie.iter_children()); Store::>::put_raw( &*self.store, diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 03927f9129..02b97f3c60 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -18,9 +18,9 @@ use crate::{ store::Store, transaction_source::{Readable, Writable}, trie::{ - self, merkle_proof::{TrieMerkleProof, TrieMerkleProofStep}, - LazyTrieLeaf, Parents, Pointer, PointerBlock, Trie, TrieTag, RADIX, USIZE_EXCEEDS_U8, + LazilyDeserializedTrie, Parents, Pointer, PointerBlock, Trie, TrieTag, RADIX, + USIZE_EXCEEDS_U8, }, trie_store::TrieStore, }, @@ -295,12 +295,12 @@ where } struct TrieScanRaw { - tip: LazyTrieLeaf, + tip: LazilyDeserializedTrie, parents: Parents, } impl TrieScanRaw { - fn new(tip: LazyTrieLeaf, parents: Parents) -> Self { + fn new(tip: LazilyDeserializedTrie, parents: Parents) -> Self { TrieScanRaw { tip, parents } } } @@ -325,24 +325,17 @@ where { let path = key_bytes; - let mut current_trie; let mut current = root_bytes; let mut depth: usize = 0; let mut acc: Parents = Vec::new(); loop { - let maybe_trie_leaf = trie::lazy_trie_deserialize(current)?; - current_trie = match maybe_trie_leaf { - leaf_bytes @ LazyTrieLeaf::Left(_) => return Ok(TrieScanRaw::new(leaf_bytes, acc)), - LazyTrieLeaf::Right(trie_object) => trie_object, - }; - match current_trie { - _leaf @ Trie::Leaf { .. } => { - // since we are checking if this is a leaf and skipping, we do not expect to ever - // hit this. - unreachable!() + let maybe_trie_leaf = bytesrepr::deserialize(current.into())?; + match maybe_trie_leaf { + leaf_bytes @ LazilyDeserializedTrie::Leaf(_) => { + return Ok(TrieScanRaw::new(leaf_bytes, acc)) } - Trie::Node { pointer_block } => { + LazilyDeserializedTrie::Node { pointer_block } => { let index = { assert!(depth < path.len(), "depth must be < {}", path.len()); path[depth] @@ -356,7 +349,7 @@ where Some(pointer) => pointer, None => { return Ok(TrieScanRaw::new( - LazyTrieLeaf::Right(Trie::Node { pointer_block }), + LazilyDeserializedTrie::Node { pointer_block }, acc, )); } @@ -376,11 +369,11 @@ where } } } - Trie::Extension { affix, pointer } => { + LazilyDeserializedTrie::Extension { affix, pointer } => { let sub_path = &path[depth..depth + affix.len()]; if sub_path != affix.as_slice() { return Ok(TrieScanRaw::new( - LazyTrieLeaf::Right(Trie::Extension { affix, pointer }), + LazilyDeserializedTrie::Extension { affix, pointer }, acc, )); } @@ -392,7 +385,7 @@ where }; current = next; depth += affix.len(); - acc.push((index, Trie::Extension { affix, pointer })) + acc.push((index, Trie::extension(affix.into(), pointer))) } None => { panic!( @@ -442,7 +435,7 @@ where // Check that tip is a leaf match tip { - LazyTrieLeaf::Left(bytes) + LazilyDeserializedTrie::Leaf(bytes) if { // Partially deserialize a key of a leaf node to ensure that we can only continue if // the key matches what we're looking for. @@ -556,10 +549,8 @@ where // this extension might need to be combined with a grandparent // extension. Trie::Node { .. } => { - let new_extension: Trie = Trie::Extension { - affix: vec![sibling_idx].into(), - pointer: sibling_pointer, - }; + let new_extension: Trie = + Trie::extension(vec![sibling_idx], sibling_pointer); let trie_key = new_extension.trie_hash()?; new_elements.push((trie_key, new_extension)) } @@ -573,10 +564,7 @@ where } => { let mut new_affix = vec![sibling_idx]; new_affix.extend(Vec::::from(extension_affix)); - let new_extension: Trie = Trie::Extension { - affix: new_affix.into(), - pointer, - }; + let new_extension: Trie = Trie::extension(new_affix, pointer); let trie_key = new_extension.trie_hash()?; new_elements.push((trie_key, new_extension)) } @@ -612,10 +600,8 @@ where new_affix.extend_from_slice(child_affix.as_slice()); *child_affix = new_affix.into(); *trie_key = { - let new_extension: Trie = Trie::Extension { - affix: child_affix.to_owned(), - pointer: pointer.to_owned(), - }; + let new_extension: Trie = + Trie::extension(child_affix.to_owned().into(), pointer.to_owned()); new_extension.trie_hash()? } } @@ -904,16 +890,9 @@ where let TrieScanRaw { tip, parents } = scan_raw::(txn, &store, &path, current_root_bytes)?; let new_elements: Vec<(Digest, Trie)> = match tip { - LazyTrieLeaf::Left(leaf_bytes) => { - let trie_tag = trie::lazy_trie_tag(leaf_bytes.as_slice()); - assert_eq!( - trie_tag, - Some(TrieTag::Leaf), - "Unexpected trie variant found instead of a `TrieTag::Leaf`" - ); - - let key_bytes: &[u8] = &leaf_bytes[1..]; - let (existing_leaf_key, existing_value_bytes) = K::from_bytes(key_bytes)?; + lazy_leaf @ LazilyDeserializedTrie::Leaf(_) => { + let (existing_leaf_key, existing_value_bytes) = + lazy_leaf.try_deserialize_leaf_key()?; if key != &existing_leaf_key { // If the "tip" is an existing leaf with a different key than @@ -940,25 +919,20 @@ where } } } - // `trie_scan_raw` will never deserialize a leaf and will always - // deserialize other Trie variants. - // So this case is unreachable, but the compiler can't figure - // that out. - LazyTrieLeaf::Right(Trie::Leaf { .. }) => unreachable!(), // If the "tip" is an existing node, then we can add a pointer // to the new leaf to the node's pointer block. - LazyTrieLeaf::Right(node @ Trie::Node { .. }) => { - let parents = add_node_to_parents(&path, node, parents); + node @ LazilyDeserializedTrie::Node { .. } => { + let parents = add_node_to_parents(&path, node.try_into()?, parents); rehash(new_leaf, parents)? } // If the "tip" is an extension node, then we must modify or // replace it, adding a node where necessary. - LazyTrieLeaf::Right(extension @ Trie::Extension { .. }) => { + extension @ LazilyDeserializedTrie::Extension { .. } => { let SplitResult { new_node, parents, maybe_hashed_child_extension, - } = split_extension(&path, extension, parents)?; + } = split_extension(&path, extension.try_into()?, parents)?; let parents = add_node_to_parents(&path, new_node, parents); if let Some(hashed_extension) = maybe_hashed_child_extension { let mut ret = vec![hashed_extension]; @@ -1012,15 +986,15 @@ enum KeysIteratorState> { Failed, } -struct VisitedTrieNode { - trie: LazyTrieLeaf, +struct VisitedTrieNode { + trie: LazilyDeserializedTrie, maybe_index: Option, path: Vec, } pub struct KeysIterator<'a, 'b, K, V, T, S: TrieStore> { initial_descend: VecDeque, - visited: Vec>, + visited: Vec, store: NonDeserializingStore<'a, K, V, S>, txn: &'b T, state: KeysIteratorState, @@ -1053,10 +1027,10 @@ where mut path, }) = self.visited.pop() { - let mut maybe_next_trie: Option> = None; + let mut maybe_next_trie: Option = None; match trie { - LazyTrieLeaf::Left(leaf_bytes) => { + LazilyDeserializedTrie::Leaf(leaf_bytes) => { if leaf_bytes.is_empty() { self.state = KeysIteratorState::Failed; return Some(Err(bytesrepr::Error::Formatting.into())); @@ -1082,10 +1056,7 @@ where return Some(Ok(key)); } } - LazyTrieLeaf::Right(Trie::Leaf { .. }) => { - unreachable!("Lazy trie deserializer ensures that this variant never happens.") - } - LazyTrieLeaf::Right(Trie::Node { ref pointer_block }) => { + LazilyDeserializedTrie::Node { ref pointer_block } => { // if we are still initially descending (and initial_descend is not empty), take // the first index we should descend to, otherwise take maybe_index from the // visited stack @@ -1100,7 +1071,7 @@ where maybe_next_trie = { match self.store.get_raw(self.txn, pointer.hash()) { Ok(Some(trie_bytes)) => { - match trie::lazy_trie_deserialize(trie_bytes) { + match bytesrepr::deserialize(trie_bytes.into()) { Ok(lazy_trie) => Some(lazy_trie), Err(error) => { self.state = KeysIteratorState::Failed; @@ -1138,7 +1109,7 @@ where index += 1; } } - LazyTrieLeaf::Right(Trie::Extension { affix, pointer }) => { + LazilyDeserializedTrie::Extension { affix, pointer } => { let descend_len = cmp::min(self.initial_descend.len(), affix.len()); let check_prefix = self .initial_descend @@ -1150,7 +1121,8 @@ where // anyway if affix.starts_with(&check_prefix) { maybe_next_trie = match self.store.get_raw(self.txn, pointer.hash()) { - Ok(Some(trie_bytes)) => match trie::lazy_trie_deserialize(trie_bytes) { + Ok(Some(trie_bytes)) => match bytesrepr::deserialize(trie_bytes.into()) + { Ok(lazy_trie) => Some(lazy_trie), Err(error) => { self.state = KeysIteratorState::Failed; @@ -1164,11 +1136,8 @@ where } }; debug_assert!( - matches!( - &maybe_next_trie, - Some(LazyTrieLeaf::Right(Trie::Node { .. })), - ), - "Expected a Trie::Node but received {:?}", + matches!(&maybe_next_trie, Some(LazilyDeserializedTrie::Node { .. }),), + "Expected a LazilyDeserializedTrie::Node but received {:?}", maybe_next_trie ); path.extend(affix); @@ -1206,10 +1175,10 @@ where S::Error: From, { let store = store_wrappers::NonDeserializingStore::new(store); - let (visited, init_state): (Vec>, _) = match store.get_raw(txn, root) { + let (visited, init_state): (Vec, _) = match store.get_raw(txn, root) { Ok(None) => (vec![], KeysIteratorState::Ok), Err(e) => (vec![], KeysIteratorState::ReturnError(e)), - Ok(Some(current_root_bytes)) => match trie::lazy_trie_deserialize(current_root_bytes) { + Ok(Some(current_root_bytes)) => match bytesrepr::deserialize(current_root_bytes.into()) { Ok(lazy_trie) => { let visited = vec![VisitedTrieNode { trie: lazy_trie, diff --git a/execution_engine/src/storage/trie_store/operations/tests/keys.rs b/execution_engine/src/storage/trie_store/operations/tests/keys.rs index 5ea089762c..3ebd8d112f 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/keys.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/keys.rs @@ -233,7 +233,7 @@ mod keys_iterator { } #[test] - #[should_panic = "Expected a Trie::Node but received"] + #[should_panic = "Expected a LazilyDeserializedTrie::Node but received"] fn should_panic_on_leaf_after_extension() { let (root_hash, tries) = return_on_err!(create_invalid_extension_trie()); test_trie(root_hash, tries); diff --git a/execution_engine/src/storage/trie_store/operations/tests/scan.rs b/execution_engine/src/storage/trie_store/operations/tests/scan.rs index e8ed97707a..80c7f91fd9 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/scan.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/scan.rs @@ -1,3 +1,6 @@ +use assert_matches::assert_matches; +use std::convert::TryInto; + use casper_hashing::Digest; use super::*; @@ -5,6 +8,7 @@ use crate::{ shared::newtypes::CorrelationId, storage::{ error::{self, in_memory}, + trie::LazilyDeserializedTrie, trie_store::operations::{scan_raw, store_wrappers, TrieScanRaw}, }, }; @@ -38,9 +42,12 @@ where for (index, parent) in parents.into_iter().rev() { let expected_tip_hash = { match tip { - either::Either::Left(leaf_bytes) => Digest::hash(&leaf_bytes), - either::Either::Right(trie) => { - let tip_bytes = trie.to_bytes().unwrap(); + LazilyDeserializedTrie::Leaf(leaf_bytes) => Digest::hash(&leaf_bytes), + node @ LazilyDeserializedTrie::Node { .. } + | node @ LazilyDeserializedTrie::Extension { .. } => { + let tip_bytes = TryInto::>::try_into(node)? + .to_bytes() + .unwrap(); Digest::hash(&tip_bytes) } } @@ -50,16 +57,22 @@ where Trie::Node { pointer_block } => { let pointer_tip_hash = pointer_block[::from(index)].map(|ptr| *ptr.hash()); assert_eq!(Some(expected_tip_hash), pointer_tip_hash); - tip = either::Either::Right(Trie::Node { pointer_block }); + tip = LazilyDeserializedTrie::Node { pointer_block }; } Trie::Extension { affix, pointer } => { let pointer_tip_hash = pointer.hash().to_owned(); assert_eq!(expected_tip_hash, pointer_tip_hash); - tip = either::Either::Right(Trie::Extension { affix, pointer }); + tip = LazilyDeserializedTrie::Extension { affix, pointer }; } } } - assert_eq!(root, tip.expect_right("Unexpected leaf found")); + + assert_matches!( + tip, + LazilyDeserializedTrie::Node { .. } | LazilyDeserializedTrie::Extension { .. }, + "Unexpected leaf found" + ); + assert_eq!(root, tip.try_into()?); txn.commit()?; Ok(()) } diff --git a/execution_engine/src/storage/trie_store/tests/mod.rs b/execution_engine/src/storage/trie_store/tests/mod.rs index a122f3ee7b..436c9bf6bf 100644 --- a/execution_engine/src/storage/trie_store/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/tests/mod.rs @@ -47,10 +47,7 @@ fn create_data() -> Vec> { let ext_node: Trie = { let affix = vec![1u8, 0]; let pointer = Pointer::NodePointer(node_2_hash); - Trie::Extension { - affix: affix.into(), - pointer, - } + Trie::extension(affix, pointer) }; let ext_node_hash = Digest::hash(ext_node.to_bytes().unwrap()); From 56b01fbf4992bf4f22ff963e3c6aaf0b87af8cc7 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Fri, 23 Jun 2023 15:15:20 +0000 Subject: [PATCH 470/735] ee/trie_store/operations: use try_deserialize_leaf_key Use LazilyDeserializedTrie::try_deserialize_leaf_key for the `delete` operation instead of deserializing the key manually. Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/operations/mod.rs | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 02b97f3c60..38ad567db7 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -435,19 +435,12 @@ where // Check that tip is a leaf match tip { - LazilyDeserializedTrie::Leaf(bytes) + lazy_leaf @ LazilyDeserializedTrie::Leaf(_) if { // Partially deserialize a key of a leaf node to ensure that we can only continue if // the key matches what we're looking for. - let ((tag_u8, key), _rem): ((u8, K), _) = FromBytes::from_bytes(&bytes)?; - let trie_tag = TrieTag::from_u8(tag_u8); // _rem contains bytes of serialized V, but we don't need to inspect it. - assert_eq!( - trie_tag, - Some(TrieTag::Leaf), - "Tip should contain leaf bytes, but has tag {:?}", - trie_tag - ); + let (key, _rem) = lazy_leaf.try_deserialize_leaf_key::()?; key == *key_to_delete } => {} _ => return Ok(DeleteResult::DoesNotExist), From 795bb487b9389a6524cf060d1af84eb23c48f852 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Fri, 23 Jun 2023 15:23:50 +0000 Subject: [PATCH 471/735] node/Cargo.toml: update openssl to 0.10.55 Signed-off-by: Alexandru Sardan --- Cargo.lock | 8 ++++---- node/Cargo.toml | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 6cb9cc873a..77047e5c47 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3662,9 +3662,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5" [[package]] name = "openssl" -version = "0.10.50" +version = "0.10.55" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7e30d8bc91859781f0a943411186324d580f2bbeb71b452fe91ae344806af3f1" +checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d" dependencies = [ "bitflags 1.3.2", "cfg-if 1.0.0", @@ -3703,9 +3703,9 @@ dependencies = [ [[package]] name = "openssl-sys" -version = "0.9.85" +version = "0.9.90" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0d3d193fb1488ad46ffe3aaabc912cc931d02ee8518fe2959aea8ef52718b0c0" +checksum = "374533b0e45f3a7ced10fcaeccca020e66656bc03dac384f852e4e5a7a8104a6" dependencies = [ "cc", "libc", diff --git a/node/Cargo.toml b/node/Cargo.toml index 70799bc92b..8e89cb88cc 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -56,7 +56,7 @@ num-rational = { version = "0.4.0", features = [ "serde" ] } num-traits = "0.2.10" num_cpus = "1" once_cell = "1" -openssl = "0.10.32" +openssl = "0.10.55" pin-project = "1.0.6" prometheus = "0.12.0" quanta = "0.7.2" From 925b641c2555f7264ae76541347e8a184c2c2389 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 26 Jun 2023 17:16:27 +0200 Subject: [PATCH 472/735] juliet: Factor out `ChannelConfiguration` --- juliet/src/lib.rs | 11 +++++++++++ juliet/src/reader.rs | 25 +++++++++++++++---------- 2 files changed, 26 insertions(+), 10 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 7c3e0aa533..c99e581949 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -151,6 +151,17 @@ macro_rules! try_outcome { }; } +/// Configuration values that need to be agreed upon by all clients. +#[derive(Copy, Clone, Debug)] +struct ChannelConfiguration { + /// Maximum number of requests allowed on the channel. + request_limit: u32, + /// Maximum size of a request sent across the channel. + max_request_payload_size: u32, + /// Maximum size of a response sent across the channel. + max_response_payload_size: u32, +} + #[cfg(test)] mod tests { use proptest::{ diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index dd44873507..669dce4c49 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,3 +1,5 @@ +//! Incoming message parser. + mod multiframe; use std::{collections::HashSet, num::NonZeroU32}; @@ -6,15 +8,20 @@ use bytes::{Buf, Bytes, BytesMut}; use crate::{ header::{ErrorKind, Header, Kind}, - try_outcome, ChannelId, Id, + try_outcome, ChannelConfiguration, ChannelId, Id, Outcome::{self, Err, Incomplete, Success}, }; const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); const UNKNOWN_ID: Id = Id::new(0); +/// A parser/state machine that processes an incoming stream. +/// +/// Does not handle IO, rather it expects a growing [`BytesMut`] buffer to be passed in, containing +/// incoming data. #[derive(Debug)] -pub struct ReaderState { +pub struct MessageReader { + /// Incoming channels channels: [Channel; N], max_frame_size: u32, } @@ -23,11 +30,9 @@ pub struct ReaderState { struct Channel { incoming_requests: HashSet, outgoing_requests: HashSet, - request_limit: u32, - max_request_payload_size: u32, - max_response_payload_size: u32, current_multiframe_receive: MultiframeReceiver, cancellation_allowance: u32, + config: ChannelConfiguration, } impl Channel { @@ -38,11 +43,11 @@ impl Channel { #[inline] fn is_at_max_requests(&self) -> bool { - self.in_flight_requests() == self.request_limit + self.in_flight_requests() == self.config.request_limit } fn increment_cancellation_allowance(&mut self) { - if self.cancellation_allowance < self.request_limit { + if self.cancellation_allowance < self.config.request_limit { self.cancellation_allowance += 1; } } @@ -58,7 +63,7 @@ pub enum CompletedRead { use self::multiframe::MultiframeReceiver; -impl ReaderState { +impl MessageReader { pub fn process(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { @@ -152,7 +157,7 @@ impl ReaderState { header, &mut buffer, self.max_frame_size, - channel.max_request_payload_size, + channel.config.max_request_payload_size, ErrorKind::RequestTooLarge )); @@ -194,7 +199,7 @@ impl ReaderState { header, &mut buffer, self.max_frame_size, - channel.max_response_payload_size, + channel.config.max_response_payload_size, ErrorKind::ResponseTooLarge )); From ff72f83bf1e2d0852a1d18604dc11e498ea54bdf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 26 Jun 2023 17:27:00 +0200 Subject: [PATCH 473/735] juliet: Add `bytemuck::Pod` for `Varint32` and `Header` --- Cargo.lock | 21 +++++++++++++++++++++ juliet/Cargo.toml | 1 + juliet/src/header.rs | 17 +++++++++++++++-- juliet/src/varint.rs | 10 +++++++++- 4 files changed, 46 insertions(+), 3 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index ab4b2c7395..24e8572342 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -346,6 +346,26 @@ version = "3.12.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535" +[[package]] +name = "bytemuck" +version = "1.13.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea" +dependencies = [ + "bytemuck_derive", +] + +[[package]] +name = "bytemuck_derive" +version = "1.4.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "fdde5c9cd29ebd706ce1b35600920a33550e402fc998a2e53ad3b42c3c47a192" +dependencies = [ + "proc-macro2 1.0.53", + "quote 1.0.26", + "syn 2.0.8", +] + [[package]] name = "byteorder" version = "1.4.3" @@ -2462,6 +2482,7 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ + "bytemuck", "bytes", "proptest", "proptest-attr-macro", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index d1af1860b7..1795514bdc 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,6 +5,7 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] +bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" thiserror = "1.0.40" diff --git a/juliet/src/header.rs b/juliet/src/header.rs index f93afec909..bf692af75f 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,12 +1,16 @@ //! `juliet` header parsing and serialization. use std::fmt::Debug; +use bytemuck::{Pod, Zeroable}; + use crate::{ChannelId, Id}; /// Header structure. -#[derive(Copy, Clone, Eq, PartialEq)] +// Note: `[u8; 4]` below should ideally be `[u8; Self::SIZE]`, but this prevents the `Zeroable` +// derive from working. +#[derive(Copy, Clone, Eq, PartialEq, Pod, Zeroable)] #[repr(transparent)] -pub struct Header([u8; Self::SIZE]); +pub struct Header([u8; 4]); impl Debug for Header { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { @@ -253,6 +257,7 @@ impl AsRef<[u8; Header::SIZE]> for Header { #[cfg(test)] mod tests { + use bytemuck::Zeroable; use proptest::{ arbitrary::any, prelude::Arbitrary, @@ -345,4 +350,12 @@ mod tests { let raw = [48, 0, 0, 0]; assert!(Header::parse(raw).is_some()); } + + #[test] + fn ensure_zeroed_header_works() { + assert_eq!( + Header::zeroed(), + Header::new(Kind::Request, ChannelId(0), Id(0)) + ) + } } diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 24067f1817..ad9f736118 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -5,6 +5,8 @@ use std::num::{NonZeroU32, NonZeroU8}; +use bytemuck::{Pod, Zeroable}; + use crate::Outcome::{self, Err, Incomplete, Success}; /// The bitmask to separate the data-follows bit from actual value bits. @@ -54,7 +56,7 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { /// maximum length a 32 bit varint can posses is 5 bytes, the 6th bytes is used to record the /// length. #[repr(transparent)] -#[derive(Copy, Clone, Debug)] +#[derive(Copy, Clone, Debug, Pod, Zeroable)] pub struct Varint32([u8; 6]); impl Varint32 { @@ -90,6 +92,7 @@ impl AsRef<[u8]> for Varint32 { #[cfg(test)] mod tests { + use bytemuck::Zeroable; use proptest::prelude::{any, prop::collection}; use proptest_attr_macro::proptest; @@ -190,4 +193,9 @@ mod tests { check_decode(value, valid_substring); } }} + + #[test] + fn ensure_is_zeroable() { + assert_eq!(Varint32::zeroed().as_ref(), Varint32::encode(0).as_ref()); + } } From 87efad5b02d0f5393cc2a6b499306f418e062887 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 27 Jun 2023 14:35:00 +0200 Subject: [PATCH 474/735] juliet: Write framing code in `writer` module --- juliet/src/lib.rs | 1 + juliet/src/varint.rs | 11 +++- juliet/src/writer.rs | 146 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 157 insertions(+), 1 deletion(-) create mode 100644 juliet/src/writer.rs diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index c99e581949..b822a967b7 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -11,6 +11,7 @@ use std::{ mod header; pub mod reader; pub mod varint; +mod writer; /// A channel identifier. /// diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index ad9f736118..d22e545c0d 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -60,6 +60,8 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { pub struct Varint32([u8; 6]); impl Varint32 { + pub const SENTINEL: Varint32 = Varint32([0xFF; 6]); + /// Encode a 32-bit integer to variable length. pub const fn encode(mut value: u32) -> Self { let mut output = [0u8; 6]; @@ -80,7 +82,14 @@ impl Varint32 { /// Returns the number of bytes in the encoded varint. pub const fn len(self) -> usize { - self.0[5] as usize + 1 + match self.0[5] { + 0xFF => 0, + n => (n + 1) as usize, + } + } + + pub const fn is_sentinel(self) -> bool { + self.0[5] == 0xFF } } diff --git a/juliet/src/writer.rs b/juliet/src/writer.rs new file mode 100644 index 0000000000..219fe518f8 --- /dev/null +++ b/juliet/src/writer.rs @@ -0,0 +1,146 @@ +use std::io::Cursor; + +use bytemuck::{Pod, Zeroable}; +use bytes::{buf::Chain, Buf, Bytes}; + +use crate::{header::Header, varint::Varint32, ChannelConfiguration, ChannelId, Id}; + +pub struct WriteTracker {} + +struct OutgoingMessage { + header: Header, + payload: Option, +} + +impl OutgoingMessage { + fn frames<'a>(&'a self) -> FrameIter<'a> { + FrameIter { + msg: self, + bytes_processed: 0, + } + } +} + +struct FrameIter<'a> { + msg: &'a OutgoingMessage, + bytes_processed: usize, +} + +#[derive(Clone, Copy, Debug, Pod, Zeroable)] +#[repr(C)] +struct Preamble { + header: Header, + payload_length: Varint32, +} + +impl Preamble { + #[inline(always)] + fn new(header: Header, payload_length: Varint32) -> Self { + Self { + header, + payload_length, + } + } + + #[inline] + fn len(&self) -> usize { + Header::SIZE + self.payload_length.len() + } +} + +impl AsRef<[u8]> for Preamble { + #[inline] + fn as_ref(&self) -> &[u8] { + let bytes = bytemuck::bytes_of(self); + &bytes[0..(self.len())] + } +} + +impl<'a> FrameIter<'a> { + fn next(&mut self, max_frame_size: usize) -> Option { + if let Some(ref payload) = self.msg.payload { + let payload_remaining = payload.len() - self.bytes_processed; + + if payload_remaining == 0 { + return None; + } + + let length_prefix = if self.bytes_processed == 0 { + Varint32::encode(payload_remaining as u32) + } else { + Varint32::SENTINEL + }; + let preamble = if self.bytes_processed == 0 { + Preamble::new(self.msg.header, length_prefix) + } else { + Preamble::new(self.msg.header, Varint32::SENTINEL) + }; + + let frame_capacity = max_frame_size - preamble.len(); + let frame_payload_len = frame_capacity.min(payload_remaining); + + let range = self.bytes_processed..(self.bytes_processed + frame_payload_len); + let frame_payload = payload.slice(range); + self.bytes_processed += frame_payload_len; + + Some(OutgoingFrame::new_with_payload(preamble, frame_payload)) + } else { + if self.bytes_processed == 0 { + self.bytes_processed = usize::MAX; + return Some(OutgoingFrame::new(Preamble::new( + self.msg.header, + Varint32::SENTINEL, + ))); + } else { + return None; + } + } + } +} + +#[derive(Debug)] +#[repr(transparent)] +struct OutgoingFrame(Chain, Bytes>); + +impl OutgoingFrame { + #[inline(always)] + fn new(preamble: Preamble) -> Self { + Self::new_with_payload(preamble, Bytes::new()) + } + + #[inline] + fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { + OutgoingFrame(Cursor::new(preamble).chain(payload)) + } +} + +pub struct Channel { + config: ChannelConfiguration, +} + +pub struct MessageWriteTracker { + /// Outgoing channels + channels: [Channel; N], +} + +impl WriteTracker { + fn create_request( + &mut self, + channel: ChannelId, + payload: Option, + ) -> Option { + // TODO: check if we're allowed to send + let id = self.generate_id(channel); // TODO: properly generate ID + + if let Some(payload) = payload { + let header = Header::new(crate::header::Kind::RequestPl, channel, id); + todo!() + } else { + todo!() + } + } + + fn generate_id(&mut self, channel: ChannelId) -> Id { + todo!() + } +} From e0cbb31aeb36efc03a284142b8ee3adf6f3a6373 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 27 Jun 2023 14:40:14 +0200 Subject: [PATCH 475/735] juliet: Use all zeroes and zero-length sentinel for `Varint32` --- juliet/src/varint.rs | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index d22e545c0d..7e5c49e768 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -60,7 +60,12 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { pub struct Varint32([u8; 6]); impl Varint32 { - pub const SENTINEL: Varint32 = Varint32([0xFF; 6]); + /// `Varint32` sentinel. + /// + /// This value will never be parsed or generated by any encoded `u32`. It allows using a + /// `Varint32` as an inlined `Option`. The return value of `Varint32::len()` of the + /// `SENTINEL` is guaranteed to be `0`. + pub const SENTINEL: Varint32 = Varint32([0u8; 6]); /// Encode a 32-bit integer to variable length. pub const fn encode(mut value: u32) -> Self { @@ -76,20 +81,13 @@ impl Varint32 { } } - output[5] = count as u8; + output[5] = count as u8 + 1; Varint32(output) } /// Returns the number of bytes in the encoded varint. pub const fn len(self) -> usize { - match self.0[5] { - 0xFF => 0, - n => (n + 1) as usize, - } - } - - pub const fn is_sentinel(self) -> bool { - self.0[5] == 0xFF + self.0[5] as usize } } @@ -205,6 +203,11 @@ mod tests { #[test] fn ensure_is_zeroable() { - assert_eq!(Varint32::zeroed().as_ref(), Varint32::encode(0).as_ref()); + assert_eq!(Varint32::zeroed().as_ref(), Varint32::SENTINEL.as_ref()); + } + + #[test] + fn sentinel_has_length_zero() { + assert_eq!(Varint32::SENTINEL.len(), 0); } } From 2ac28c71bf2b8bd6af9d119495b38a6cb1c0200d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 28 Jun 2023 15:51:35 +0200 Subject: [PATCH 476/735] juliet: Finish support for sending requests --- juliet/src/writer.rs | 70 +++++++++++++++++++++++++++++++++++++------- 1 file changed, 59 insertions(+), 11 deletions(-) diff --git a/juliet/src/writer.rs b/juliet/src/writer.rs index 219fe518f8..8289c69520 100644 --- a/juliet/src/writer.rs +++ b/juliet/src/writer.rs @@ -1,13 +1,12 @@ -use std::io::Cursor; +use std::{collections::HashSet, io::Cursor}; use bytemuck::{Pod, Zeroable}; use bytes::{buf::Chain, Buf, Bytes}; +use thiserror::Error; use crate::{header::Header, varint::Varint32, ChannelConfiguration, ChannelId, Id}; -pub struct WriteTracker {} - -struct OutgoingMessage { +pub struct OutgoingMessage { header: Header, payload: Option, } @@ -116,6 +115,7 @@ impl OutgoingFrame { pub struct Channel { config: ChannelConfiguration, + outgoing_request_ids: HashSet, } pub struct MessageWriteTracker { @@ -123,20 +123,68 @@ pub struct MessageWriteTracker { channels: [Channel; N], } -impl WriteTracker { - fn create_request( +#[derive(Copy, Clone, Debug, Error)] +pub enum LocalProtocolViolation { + /// TODO: docs with hint what the programming error could be + #[error("sending would exceed request limit")] + WouldExceedRequestLimit, + /// TODO: docs with hint what the programming error could be + #[error("invalid channel")] + InvalidChannel(ChannelId), +} + +impl MessageWriteTracker { + #[inline(always)] + fn channel_index(&self, channel: ChannelId) -> Result { + if channel.0 as usize >= N { + Err(LocalProtocolViolation::InvalidChannel(channel)) + } else { + Ok(channel.0 as usize) + } + } + + /// Returns whether or not it is permissible to send another request on given channel. + #[inline] + pub fn allowed_to_send_request( + &self, + channel: ChannelId, + ) -> Result { + let chan_idx = self.channel_index(channel)?; + let chan = &self.channels[chan_idx]; + + Ok(chan.outgoing_request_ids.len() < chan.config.request_limit as usize) + } + + /// Creates a new request to be sent. + /// + /// # Note + /// + /// Any caller of this functions should call `allowed_to_send_request()` before this function + /// to ensure the channels request limit is not exceeded. Failure to do so may result in the + /// peer closing the connection due to a protocol violation. + pub fn create_request( &mut self, channel: ChannelId, payload: Option, - ) -> Option { - // TODO: check if we're allowed to send - let id = self.generate_id(channel); // TODO: properly generate ID + ) -> Result { + let id = self.generate_id(channel); + + if !self.allowed_to_send_request(channel)? { + return Err(LocalProtocolViolation::WouldExceedRequestLimit); + } if let Some(payload) = payload { let header = Header::new(crate::header::Kind::RequestPl, channel, id); - todo!() + Ok(OutgoingMessage { + header, + payload: Some(payload), + }) } else { - todo!() + let header = Header::new(crate::header::Kind::Request, channel, id); + Ok(OutgoingMessage { + header, + payload: None, + }) } } From 45a4780cb990c03b8f3d90aac16ac95b9974604a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 28 Jun 2023 17:01:46 +0200 Subject: [PATCH 477/735] juliet: Combine functionality of reader and writer --- juliet/src/lib.rs | 9 +- juliet/src/reader.rs | 95 +++++++++++++--- juliet/src/reader/multiframe.rs | 6 +- juliet/src/varint.rs | 10 +- juliet/src/writer.rs | 194 -------------------------------- 5 files changed, 92 insertions(+), 222 deletions(-) delete mode 100644 juliet/src/writer.rs diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index b822a967b7..b9cbae6300 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -11,7 +11,6 @@ use std::{ mod header; pub mod reader; pub mod varint; -mod writer; /// A channel identifier. /// @@ -91,7 +90,7 @@ pub enum Outcome { /// The given data was incomplete, at least the given amount of additional bytes is needed. Incomplete(NonZeroU32), /// An fatal error was found in the given input. - Err(E), + Fatal(E), /// The parse was successful and the underlying buffer has been modified to extract `T`. Success(T), } @@ -110,7 +109,7 @@ impl Outcome { match self { Outcome::Success(value) => value, Outcome::Incomplete(_) => panic!("incomplete: {}", msg), - Outcome::Err(_) => panic!("error: {}", msg), + Outcome::Fatal(_) => panic!("error: {}", msg), } } @@ -122,7 +121,7 @@ impl Outcome { { match self { Outcome::Incomplete(n) => Outcome::Incomplete(n), - Outcome::Err(err) => Outcome::Err(f(err)), + Outcome::Fatal(err) => Outcome::Fatal(f(err)), Outcome::Success(value) => Outcome::Success(value), } } @@ -146,7 +145,7 @@ macro_rules! try_outcome { ($src:expr) => { match $src { Outcome::Incomplete(n) => return Outcome::Incomplete(n), - Outcome::Err(err) => return Outcome::Err(err.into()), + Outcome::Fatal(err) => return Outcome::Fatal(err.into()), Outcome::Success(value) => value, } }; diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index 669dce4c49..bc9b516891 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -1,15 +1,18 @@ //! Incoming message parser. mod multiframe; +mod outgoing_message; use std::{collections::HashSet, num::NonZeroU32}; use bytes::{Buf, Bytes, BytesMut}; +use thiserror::Error; +use self::{multiframe::MultiframeReceiver, outgoing_message::OutgoingMessage}; use crate::{ header::{ErrorKind, Header, Kind}, try_outcome, ChannelConfiguration, ChannelId, Id, - Outcome::{self, Err, Incomplete, Success}, + Outcome::{self, Fatal, Incomplete, Success}, }; const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); @@ -61,10 +64,72 @@ pub enum CompletedRead { ResponseCancellation { id: Id }, } -use self::multiframe::MultiframeReceiver; +#[derive(Copy, Clone, Debug, Error)] +pub enum LocalProtocolViolation { + /// TODO: docs with hint what the programming error could be + #[error("sending would exceed request limit")] + WouldExceedRequestLimit, + /// TODO: docs with hint what the programming error could be + #[error("invalid channel")] + InvalidChannel(ChannelId), +} impl MessageReader { - pub fn process(&mut self, mut buffer: BytesMut) -> Outcome { + // TODO: Make return channel ref. + #[inline(always)] + fn channel_index(&self, channel: ChannelId) -> Result { + if channel.0 as usize >= N { + Err(LocalProtocolViolation::InvalidChannel(channel)) + } else { + Ok(channel.0 as usize) + } + } + + /// Returns whether or not it is permissible to send another request on given channel. + #[inline] + pub fn allowed_to_send_request( + &self, + channel: ChannelId, + ) -> Result { + let chan_idx = self.channel_index(channel)?; + let chan = &self.channels[chan_idx]; + + Ok(chan.outgoing_requests.len() < chan.config.request_limit as usize) + } + + /// Creates a new request to be sent. + /// + /// # Note + /// + /// Any caller of this functions should call `allowed_to_send_request()` before this function + /// to ensure the channels request limit is not exceeded. Failure to do so may result in the + /// peer closing the connection due to a protocol violation. + pub fn create_request( + &mut self, + channel: ChannelId, + payload: Option, + ) -> Result { + let id = self.generate_request_id(channel); + + if !self.allowed_to_send_request(channel)? { + return Err(LocalProtocolViolation::WouldExceedRequestLimit); + } + + if let Some(payload) = payload { + let header = Header::new(crate::header::Kind::RequestPl, channel, id); + Ok(OutgoingMessage::new(header, Some(payload))) + } else { + let header = Header::new(crate::header::Kind::Request, channel, id); + Ok(OutgoingMessage::new(header, None)) + } + } + + /// Generate a new, unused request ID. + fn generate_request_id(&mut self, channel: ChannelId) -> Id { + todo!() + } + + pub fn process_incoming(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { // We do not have enough data to extract a header, indicate and return. @@ -77,7 +142,7 @@ impl MessageReader { Some(header) => header, None => { // The header was invalid, return an error. - return Err(Header::new_error( + return Fatal(Header::new_error( ErrorKind::InvalidHeader, UNKNOWN_CHANNEL, UNKNOWN_ID, @@ -102,17 +167,17 @@ impl MessageReader { // At this point we are guaranteed a valid non-error frame, verify its channel. let channel = match self.channels.get_mut(header.channel().get() as usize) { Some(channel) => channel, - None => return Err(header.with_err(ErrorKind::InvalidChannel)), + None => return Fatal(header.with_err(ErrorKind::InvalidChannel)), }; match header.kind() { Kind::Request => { if channel.is_at_max_requests() { - return Err(header.with_err(ErrorKind::RequestLimitExceeded)); + return Fatal(header.with_err(ErrorKind::RequestLimitExceeded)); } if channel.incoming_requests.insert(header.id()) { - return Err(header.with_err(ErrorKind::DuplicateRequest)); + return Fatal(header.with_err(ErrorKind::DuplicateRequest)); } channel.increment_cancellation_allowance(); @@ -127,7 +192,7 @@ impl MessageReader { } Kind::Response => { if !channel.outgoing_requests.remove(&header.id()) { - return Err(header.with_err(ErrorKind::FictitiousRequest)); + return Fatal(header.with_err(ErrorKind::FictitiousRequest)); } else { return Success(CompletedRead::ReceivedResponse { id: header.id(), @@ -143,12 +208,12 @@ impl MessageReader { // If we're in the ready state, requests must be eagerly rejected if // exceeding the limit. if channel.is_at_max_requests() { - return Err(header.with_err(ErrorKind::RequestLimitExceeded)); + return Fatal(header.with_err(ErrorKind::RequestLimitExceeded)); } // We also check for duplicate requests early to avoid reading them. if channel.incoming_requests.contains(&header.id()) { - return Err(header.with_err(ErrorKind::DuplicateRequest)); + return Fatal(header.with_err(ErrorKind::DuplicateRequest)); } }; @@ -164,7 +229,7 @@ impl MessageReader { // If we made it to this point, we have consumed the frame. Record it. if is_new_request { if channel.incoming_requests.insert(header.id()) { - return Err(header.with_err(ErrorKind::DuplicateRequest)); + return Fatal(header.with_err(ErrorKind::DuplicateRequest)); } channel.increment_cancellation_allowance(); } @@ -190,7 +255,7 @@ impl MessageReader { // Ensure it is not a bogus response. if is_new_response { if !channel.outgoing_requests.contains(&header.id()) { - return Err(header.with_err(ErrorKind::FictitiousRequest)); + return Fatal(header.with_err(ErrorKind::FictitiousRequest)); } } @@ -206,7 +271,7 @@ impl MessageReader { // If we made it to this point, we have consumed the frame. if is_new_response { if !channel.outgoing_requests.remove(&header.id()) { - return Err(header.with_err(ErrorKind::FictitiousRequest)); + return Fatal(header.with_err(ErrorKind::FictitiousRequest)); } } @@ -229,7 +294,7 @@ impl MessageReader { // cancellation races. For security reasons they are subject to an allowance. if channel.cancellation_allowance == 0 { - return Err(header.with_err(ErrorKind::CancellationLimitExceeded)); + return Fatal(header.with_err(ErrorKind::CancellationLimitExceeded)); } channel.cancellation_allowance -= 1; @@ -241,7 +306,7 @@ impl MessageReader { if channel.outgoing_requests.remove(&header.id()) { return Success(CompletedRead::ResponseCancellation { id: header.id() }); } else { - return Err(header.with_err(ErrorKind::FictitiousCancel)); + return Fatal(header.with_err(ErrorKind::FictitiousCancel)); } } } diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/reader/multiframe.rs index 0b20e0d7a5..91aff7eaa2 100644 --- a/juliet/src/reader/multiframe.rs +++ b/juliet/src/reader/multiframe.rs @@ -9,7 +9,7 @@ use bytes::{Buf, BytesMut}; use crate::{ header::{ErrorKind, Header}, - reader::Outcome::{self, Err, Success}, + reader::Outcome::{self, Fatal, Success}, try_outcome, varint::decode_varint32, }; @@ -106,7 +106,7 @@ impl MultiframeReceiver { { { if payload_size.value > max_payload_size { - return Err(header.with_err(payload_exceeded_error_kind)); + return Fatal(header.with_err(payload_exceeded_error_kind)); } // We have a valid varint32. @@ -156,7 +156,7 @@ impl MultiframeReceiver { } => { if header != *active_header { // The newly supplied header does not match the one active. - return Err(header.with_err(ErrorKind::InProgress)); + return Fatal(header.with_err(ErrorKind::InProgress)); } // Determine whether we expect an intermediate or end segment. diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 7e5c49e768..9f18cce093 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -7,7 +7,7 @@ use std::num::{NonZeroU32, NonZeroU8}; use bytemuck::{Pod, Zeroable}; -use crate::Outcome::{self, Err, Incomplete, Success}; +use crate::Outcome::{self, Fatal, Incomplete, Success}; /// The bitmask to separate the data-follows bit from actual value bits. const VARINT_MASK: u8 = 0b0111_1111; @@ -33,7 +33,7 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { for (idx, &c) in input.iter().enumerate() { if idx >= 4 && c & 0b1111_0000 != 0 { - return Err(Overflow); + return Fatal(Overflow); } value |= ((c & 0b0111_1111) as u32) << (idx * 7); @@ -176,19 +176,19 @@ mod tests { // Value is too long (no more than 5 bytes allowed). assert!(matches!( decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x80, 0x01]), - Outcome::Err(Overflow) + Outcome::Fatal(Overflow) )); // This behavior should already trigger on the fifth byte. assert!(matches!( decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x80]), - Outcome::Err(Overflow) + Outcome::Fatal(Overflow) )); // Value is too big to be held by a `u32`. assert!(matches!( decode_varint32(&[0x80, 0x80, 0x80, 0x80, 0x10]), - Outcome::Err(Overflow) + Outcome::Fatal(Overflow) )); } diff --git a/juliet/src/writer.rs b/juliet/src/writer.rs deleted file mode 100644 index 8289c69520..0000000000 --- a/juliet/src/writer.rs +++ /dev/null @@ -1,194 +0,0 @@ -use std::{collections::HashSet, io::Cursor}; - -use bytemuck::{Pod, Zeroable}; -use bytes::{buf::Chain, Buf, Bytes}; -use thiserror::Error; - -use crate::{header::Header, varint::Varint32, ChannelConfiguration, ChannelId, Id}; - -pub struct OutgoingMessage { - header: Header, - payload: Option, -} - -impl OutgoingMessage { - fn frames<'a>(&'a self) -> FrameIter<'a> { - FrameIter { - msg: self, - bytes_processed: 0, - } - } -} - -struct FrameIter<'a> { - msg: &'a OutgoingMessage, - bytes_processed: usize, -} - -#[derive(Clone, Copy, Debug, Pod, Zeroable)] -#[repr(C)] -struct Preamble { - header: Header, - payload_length: Varint32, -} - -impl Preamble { - #[inline(always)] - fn new(header: Header, payload_length: Varint32) -> Self { - Self { - header, - payload_length, - } - } - - #[inline] - fn len(&self) -> usize { - Header::SIZE + self.payload_length.len() - } -} - -impl AsRef<[u8]> for Preamble { - #[inline] - fn as_ref(&self) -> &[u8] { - let bytes = bytemuck::bytes_of(self); - &bytes[0..(self.len())] - } -} - -impl<'a> FrameIter<'a> { - fn next(&mut self, max_frame_size: usize) -> Option { - if let Some(ref payload) = self.msg.payload { - let payload_remaining = payload.len() - self.bytes_processed; - - if payload_remaining == 0 { - return None; - } - - let length_prefix = if self.bytes_processed == 0 { - Varint32::encode(payload_remaining as u32) - } else { - Varint32::SENTINEL - }; - let preamble = if self.bytes_processed == 0 { - Preamble::new(self.msg.header, length_prefix) - } else { - Preamble::new(self.msg.header, Varint32::SENTINEL) - }; - - let frame_capacity = max_frame_size - preamble.len(); - let frame_payload_len = frame_capacity.min(payload_remaining); - - let range = self.bytes_processed..(self.bytes_processed + frame_payload_len); - let frame_payload = payload.slice(range); - self.bytes_processed += frame_payload_len; - - Some(OutgoingFrame::new_with_payload(preamble, frame_payload)) - } else { - if self.bytes_processed == 0 { - self.bytes_processed = usize::MAX; - return Some(OutgoingFrame::new(Preamble::new( - self.msg.header, - Varint32::SENTINEL, - ))); - } else { - return None; - } - } - } -} - -#[derive(Debug)] -#[repr(transparent)] -struct OutgoingFrame(Chain, Bytes>); - -impl OutgoingFrame { - #[inline(always)] - fn new(preamble: Preamble) -> Self { - Self::new_with_payload(preamble, Bytes::new()) - } - - #[inline] - fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { - OutgoingFrame(Cursor::new(preamble).chain(payload)) - } -} - -pub struct Channel { - config: ChannelConfiguration, - outgoing_request_ids: HashSet, -} - -pub struct MessageWriteTracker { - /// Outgoing channels - channels: [Channel; N], -} - -#[derive(Copy, Clone, Debug, Error)] -pub enum LocalProtocolViolation { - /// TODO: docs with hint what the programming error could be - #[error("sending would exceed request limit")] - WouldExceedRequestLimit, - /// TODO: docs with hint what the programming error could be - #[error("invalid channel")] - InvalidChannel(ChannelId), -} - -impl MessageWriteTracker { - #[inline(always)] - fn channel_index(&self, channel: ChannelId) -> Result { - if channel.0 as usize >= N { - Err(LocalProtocolViolation::InvalidChannel(channel)) - } else { - Ok(channel.0 as usize) - } - } - - /// Returns whether or not it is permissible to send another request on given channel. - #[inline] - pub fn allowed_to_send_request( - &self, - channel: ChannelId, - ) -> Result { - let chan_idx = self.channel_index(channel)?; - let chan = &self.channels[chan_idx]; - - Ok(chan.outgoing_request_ids.len() < chan.config.request_limit as usize) - } - - /// Creates a new request to be sent. - /// - /// # Note - /// - /// Any caller of this functions should call `allowed_to_send_request()` before this function - /// to ensure the channels request limit is not exceeded. Failure to do so may result in the - /// peer closing the connection due to a protocol violation. - pub fn create_request( - &mut self, - channel: ChannelId, - payload: Option, - ) -> Result { - let id = self.generate_id(channel); - - if !self.allowed_to_send_request(channel)? { - return Err(LocalProtocolViolation::WouldExceedRequestLimit); - } - - if let Some(payload) = payload { - let header = Header::new(crate::header::Kind::RequestPl, channel, id); - Ok(OutgoingMessage { - header, - payload: Some(payload), - }) - } else { - let header = Header::new(crate::header::Kind::Request, channel, id); - Ok(OutgoingMessage { - header, - payload: None, - }) - } - } - - fn generate_id(&mut self, channel: ChannelId) -> Id { - todo!() - } -} From 33cea9642ade9065b2404116abe77b1289241727 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 28 Jun 2023 15:44:48 +0000 Subject: [PATCH 478/735] Revert "node/Cargo.toml: update openssl to 0.10.55" This reverts commit 795bb487b9389a6524cf060d1af84eb23c48f852. --- Cargo.lock | 8 ++++---- node/Cargo.toml | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 77047e5c47..6cb9cc873a 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3662,9 +3662,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5" [[package]] name = "openssl" -version = "0.10.55" +version = "0.10.50" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d" +checksum = "7e30d8bc91859781f0a943411186324d580f2bbeb71b452fe91ae344806af3f1" dependencies = [ "bitflags 1.3.2", "cfg-if 1.0.0", @@ -3703,9 +3703,9 @@ dependencies = [ [[package]] name = "openssl-sys" -version = "0.9.90" +version = "0.9.85" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "374533b0e45f3a7ced10fcaeccca020e66656bc03dac384f852e4e5a7a8104a6" +checksum = "0d3d193fb1488ad46ffe3aaabc912cc931d02ee8518fe2959aea8ef52718b0c0" dependencies = [ "cc", "libc", diff --git a/node/Cargo.toml b/node/Cargo.toml index 8e89cb88cc..70799bc92b 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -56,7 +56,7 @@ num-rational = { version = "0.4.0", features = [ "serde" ] } num-traits = "0.2.10" num_cpus = "1" once_cell = "1" -openssl = "0.10.55" +openssl = "0.10.32" pin-project = "1.0.6" prometheus = "0.12.0" quanta = "0.7.2" From 765677f7c07be92bd21cbfd3303dfcf9e74cd819 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 28 Jun 2023 16:04:25 +0000 Subject: [PATCH 479/735] ee/trie_store: address code review comments Signed-off-by: Alexandru Sardan --- execution_engine/src/storage/trie/mod.rs | 77 +++++++++++-------- execution_engine/src/storage/trie/tests.rs | 28 +++---- .../src/storage/trie_store/operations/mod.rs | 9 ++- .../trie_store/operations/tests/scan.rs | 11 +-- 4 files changed, 67 insertions(+), 58 deletions(-) diff --git a/execution_engine/src/storage/trie/mod.rs b/execution_engine/src/storage/trie/mod.rs index 5adaa857f1..a091d51844 100644 --- a/execution_engine/src/storage/trie/mod.rs +++ b/execution_engine/src/storage/trie/mod.rs @@ -510,18 +510,52 @@ impl Trie { } } +/// Bytes representation of a `Trie` that is a `Trie::Leaf` variant. +/// The bytes for this trie leaf also include the `Trie::Tag`. +#[derive(Debug, Clone, PartialEq)] +pub(crate) struct TrieLeafBytes(Bytes); + +impl TrieLeafBytes { + pub(crate) fn bytes(&self) -> &Bytes { + &self.0 + } + + pub(crate) fn try_deserialize_leaf_key( + &self, + ) -> Result<(K, &[u8]), bytesrepr::Error> { + let (tag_byte, rem) = u8::from_bytes(&self.0)?; + let tag = TrieTag::from_u8(tag_byte).ok_or(bytesrepr::Error::Formatting)?; + assert_eq!( + tag, + TrieTag::Leaf, + "Unexpected layout for trie leaf bytes. Expected `TrieTag::Leaf` but got {:?}", + tag + ); + K::from_bytes(rem) + } +} + +impl From<&[u8]> for TrieLeafBytes { + fn from(value: &[u8]) -> Self { + Self(value.into()) + } +} + +impl From> for TrieLeafBytes { + fn from(value: Vec) -> Self { + Self(value.into()) + } +} + +/// Like `Trie` but does not deserialize the leaf when constructed. #[derive(Debug, Clone, PartialEq)] pub(crate) enum LazilyDeserializedTrie { - Leaf(Bytes), - Node { - pointer_block: Box, - }, - Extension { - /// Extension node affix bytes. - affix: Bytes, - /// Extension node pointer. - pointer: Pointer, - }, + /// Serialized trie leaf bytes + Leaf(TrieLeafBytes), + /// Trie node. + Node { pointer_block: Box }, + /// Trie extension node. + Extension { affix: Bytes, pointer: Pointer }, } impl LazilyDeserializedTrie { @@ -539,25 +573,6 @@ impl LazilyDeserializedTrie { } } } - - pub(crate) fn try_deserialize_leaf_key( - &self, - ) -> Result<(K, &[u8]), bytesrepr::Error> { - match self { - LazilyDeserializedTrie::Leaf(leaf_bytes) => { - let (tag_byte, rem) = u8::from_bytes(leaf_bytes)?; - let tag = TrieTag::from_u8(tag_byte).ok_or(bytesrepr::Error::Formatting)?; - if let TrieTag::Leaf = tag { - K::from_bytes(rem) - } else { - Err(bytesrepr::Error::Formatting) - } - } - LazilyDeserializedTrie::Node { .. } | LazilyDeserializedTrie::Extension { .. } => { - Err(bytesrepr::Error::Formatting) - } - } - } } impl FromBytes for LazilyDeserializedTrie { @@ -703,8 +718,8 @@ impl TryFrom for Trie fn try_from(value: LazilyDeserializedTrie) -> Result { match value { - LazilyDeserializedTrie::Leaf(_) => { - let (key, value_bytes) = value.try_deserialize_leaf_key()?; + LazilyDeserializedTrie::Leaf(leaf_bytes) => { + let (key, value_bytes) = leaf_bytes.try_deserialize_leaf_key()?; let value = bytesrepr::deserialize_from_slice(value_bytes)?; Ok(Self::Leaf { key, value }) } diff --git a/execution_engine/src/storage/trie/tests.rs b/execution_engine/src/storage/trie/tests.rs index a2febde94c..b21169d5cb 100644 --- a/execution_engine/src/storage/trie/tests.rs +++ b/execution_engine/src/storage/trie/tests.rs @@ -105,7 +105,7 @@ mod proptests { use crate::storage::trie::{gens::*, LazilyDeserializedTrie, PointerBlock, Trie}; - fn test_trie_roundtrip_to_lazy_trie(trie: &Trie, check_key: bool) + fn test_trie_roundtrip_to_lazy_trie(trie: &Trie) where K: ToBytes + FromBytes + PartialEq + std::fmt::Debug + Clone, V: ToBytes + FromBytes + PartialEq + std::fmt::Debug + Clone, @@ -127,16 +127,12 @@ mod proptests { .try_into() .expect("Expected to be able to convert LazilyDeserializedTrie to Trie") ); - if check_key { - let (key, _) = deserialized_from_slice + if let LazilyDeserializedTrie::Leaf(leaf_bytes) = deserialized_from_slice { + let (key, _) = leaf_bytes .try_deserialize_leaf_key::() .expect("Should have been able to deserialize key"); assert_eq!(key, *trie.key().unwrap()); - } else { - assert!(deserialized_from_slice - .try_deserialize_leaf_key::() - .is_err()); - } + }; let deserialized: LazilyDeserializedTrie = bytesrepr::deserialize(serialized).expect("Unable to deserialize data"); @@ -148,16 +144,12 @@ mod proptests { .try_into() .expect("Expected to be able to convert LazilyDeserializedTrie to Trie") ); - if check_key { - let (key, _) = deserialized + if let LazilyDeserializedTrie::Leaf(leaf_bytes) = deserialized { + let (key, _) = leaf_bytes .try_deserialize_leaf_key::() .expect("Should have been able to deserialize key"); assert_eq!(key, *trie.key().unwrap()); - } else { - assert!(deserialized_from_slice - .try_deserialize_leaf_key::() - .is_err()); - } + }; } proptest! { @@ -183,17 +175,17 @@ mod proptests { #[test] fn bytesrepr_roundtrip_trie_leaf_to_lazy_trie(trie_leaf in trie_leaf_arb()) { - test_trie_roundtrip_to_lazy_trie(&trie_leaf, true) + test_trie_roundtrip_to_lazy_trie(&trie_leaf) } #[test] fn bytesrepr_roundtrip_trie_extension_to_lazy_trie(trie_extension in trie_extension_arb()) { - test_trie_roundtrip_to_lazy_trie(&trie_extension, false) + test_trie_roundtrip_to_lazy_trie(&trie_extension) } #[test] fn bytesrepr_roundtrip_trie_node_to_lazy_trie(trie_node in trie_node_arb()) { - test_trie_roundtrip_to_lazy_trie(&trie_node, false); + test_trie_roundtrip_to_lazy_trie(&trie_node); } #[test] diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 38ad567db7..1a1579af8a 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -435,12 +435,12 @@ where // Check that tip is a leaf match tip { - lazy_leaf @ LazilyDeserializedTrie::Leaf(_) + LazilyDeserializedTrie::Leaf(leaf_bytes) if { // Partially deserialize a key of a leaf node to ensure that we can only continue if // the key matches what we're looking for. // _rem contains bytes of serialized V, but we don't need to inspect it. - let (key, _rem) = lazy_leaf.try_deserialize_leaf_key::()?; + let (key, _rem) = leaf_bytes.try_deserialize_leaf_key::()?; key == *key_to_delete } => {} _ => return Ok(DeleteResult::DoesNotExist), @@ -883,9 +883,9 @@ where let TrieScanRaw { tip, parents } = scan_raw::(txn, &store, &path, current_root_bytes)?; let new_elements: Vec<(Digest, Trie)> = match tip { - lazy_leaf @ LazilyDeserializedTrie::Leaf(_) => { + LazilyDeserializedTrie::Leaf(leaf_bytes) => { let (existing_leaf_key, existing_value_bytes) = - lazy_leaf.try_deserialize_leaf_key()?; + leaf_bytes.try_deserialize_leaf_key()?; if key != &existing_leaf_key { // If the "tip" is an existing leaf with a different key than @@ -1024,6 +1024,7 @@ where match trie { LazilyDeserializedTrie::Leaf(leaf_bytes) => { + let leaf_bytes = leaf_bytes.bytes(); if leaf_bytes.is_empty() { self.state = KeysIteratorState::Failed; return Some(Err(bytesrepr::Error::Formatting.into())); diff --git a/execution_engine/src/storage/trie_store/operations/tests/scan.rs b/execution_engine/src/storage/trie_store/operations/tests/scan.rs index 80c7f91fd9..14cfaa8816 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/scan.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/scan.rs @@ -1,4 +1,3 @@ -use assert_matches::assert_matches; use std::convert::TryInto; use casper_hashing::Digest; @@ -42,7 +41,7 @@ where for (index, parent) in parents.into_iter().rev() { let expected_tip_hash = { match tip { - LazilyDeserializedTrie::Leaf(leaf_bytes) => Digest::hash(&leaf_bytes), + LazilyDeserializedTrie::Leaf(leaf_bytes) => Digest::hash(leaf_bytes.bytes()), node @ LazilyDeserializedTrie::Node { .. } | node @ LazilyDeserializedTrie::Extension { .. } => { let tip_bytes = TryInto::>::try_into(node)? @@ -67,9 +66,11 @@ where } } - assert_matches!( - tip, - LazilyDeserializedTrie::Node { .. } | LazilyDeserializedTrie::Extension { .. }, + assert!( + matches!( + tip, + LazilyDeserializedTrie::Node { .. } | LazilyDeserializedTrie::Extension { .. }, + ), "Unexpected leaf found" ); assert_eq!(root, tip.try_into()?); From 9767abc1ce967abb7344877e3437bd1597abe7f9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 29 Jun 2023 13:16:41 +0200 Subject: [PATCH 480/735] juliet: Finish draft of core functionality --- juliet/src/reader.rs | 137 ++++++++++++++++++++++++++++++++++++++----- 1 file changed, 121 insertions(+), 16 deletions(-) diff --git a/juliet/src/reader.rs b/juliet/src/reader.rs index bc9b516891..623dc5d70e 100644 --- a/juliet/src/reader.rs +++ b/juliet/src/reader.rs @@ -10,7 +10,7 @@ use thiserror::Error; use self::{multiframe::MultiframeReceiver, outgoing_message::OutgoingMessage}; use crate::{ - header::{ErrorKind, Header, Kind}, + header::{self, ErrorKind, Header, Kind}, try_outcome, ChannelConfiguration, ChannelId, Id, Outcome::{self, Fatal, Incomplete, Success}, }; @@ -36,6 +36,7 @@ struct Channel { current_multiframe_receive: MultiframeReceiver, cancellation_allowance: u32, config: ChannelConfiguration, + prev_request_id: u16, } impl Channel { @@ -49,11 +50,39 @@ impl Channel { self.in_flight_requests() == self.config.request_limit } + #[inline] fn increment_cancellation_allowance(&mut self) { if self.cancellation_allowance < self.config.request_limit { self.cancellation_allowance += 1; } } + + /// Generates an unused ID for an outgoing request on this channel. + /// + /// Returns `None` if the entire ID space has been exhausted. Note that this should never + /// occur under reasonable conditions, as the request limit should be less than [`u16::MAX`]. + #[inline] + fn generate_request_id(&mut self) -> Option { + if self.outgoing_requests.len() == u16::MAX as usize { + // We've exhausted the entire ID space. + return None; + } + + let mut candidate = Id(self.prev_request_id.wrapping_add(1)); + while self.outgoing_requests.contains(&candidate) { + candidate = Id(candidate.0.wrapping_add(1)); + } + + self.prev_request_id = candidate.0; + + Some(candidate) + } + + /// Returns whether or not it is permissible to send another request on given channel. + #[inline] + pub fn allowed_to_send_request(&self) -> bool { + self.outgoing_requests.len() < self.config.request_limit as usize + } } pub enum CompletedRead { @@ -72,16 +101,29 @@ pub enum LocalProtocolViolation { /// TODO: docs with hint what the programming error could be #[error("invalid channel")] InvalidChannel(ChannelId), + #[error("cannot respond to request that does not exist")] + NonexistantRequest, } impl MessageReader { - // TODO: Make return channel ref. #[inline(always)] - fn channel_index(&self, channel: ChannelId) -> Result { + fn lookup_channel(&self, channel: ChannelId) -> Result<&Channel, LocalProtocolViolation> { if channel.0 as usize >= N { Err(LocalProtocolViolation::InvalidChannel(channel)) } else { - Ok(channel.0 as usize) + Ok(&self.channels[channel.0 as usize]) + } + } + + #[inline(always)] + fn lookup_channel_mut( + &mut self, + channel: ChannelId, + ) -> Result<&mut Channel, LocalProtocolViolation> { + if channel.0 as usize >= N { + Err(LocalProtocolViolation::InvalidChannel(channel)) + } else { + Ok(&mut self.channels[channel.0 as usize]) } } @@ -91,8 +133,7 @@ impl MessageReader { &self, channel: ChannelId, ) -> Result { - let chan_idx = self.channel_index(channel)?; - let chan = &self.channels[chan_idx]; + let chan = self.lookup_channel(channel)?; Ok(chan.outgoing_requests.len() < chan.config.request_limit as usize) } @@ -101,34 +142,98 @@ impl MessageReader { /// /// # Note /// - /// Any caller of this functions should call `allowed_to_send_request()` before this function - /// to ensure the channels request limit is not exceeded. Failure to do so may result in the - /// peer closing the connection due to a protocol violation. + /// It is advisable to call [`MessageReader::allowed_to_send_request`] before calling + /// `create_request`, otherwise there is risk of a + /// [`LocalProtocolViolation::WouldExceedRateLimit`]. pub fn create_request( &mut self, channel: ChannelId, payload: Option, ) -> Result { - let id = self.generate_request_id(channel); + let chan = self.lookup_channel_mut(channel)?; - if !self.allowed_to_send_request(channel)? { + if !chan.allowed_to_send_request() { return Err(LocalProtocolViolation::WouldExceedRequestLimit); } + // The `unwrap_or_default` below should never be triggered, as long as we `u16::MAX` or less + // requests are currently in flight, which is always the case. + let id = chan.generate_request_id().unwrap_or(Id(0)); + + // Note the outgoing request for later. + chan.outgoing_requests.insert(id); + if let Some(payload) = payload { - let header = Header::new(crate::header::Kind::RequestPl, channel, id); + let header = Header::new(header::Kind::RequestPl, channel, id); Ok(OutgoingMessage::new(header, Some(payload))) } else { - let header = Header::new(crate::header::Kind::Request, channel, id); + let header = Header::new(header::Kind::Request, channel, id); Ok(OutgoingMessage::new(header, None)) } } - /// Generate a new, unused request ID. - fn generate_request_id(&mut self, channel: ChannelId) -> Id { - todo!() + pub fn create_response( + &mut self, + channel: ChannelId, + id: Id, + payload: Option, + ) -> Result, LocalProtocolViolation> { + let chan = self.lookup_channel_mut(channel)?; + + if !chan.incoming_requests.remove(&id) { + // The request has been cancelled, no need to send a response. + return Ok(None); + } + + if let Some(payload) = payload { + let header = Header::new(header::Kind::ResponsePl, channel, id); + Ok(Some(OutgoingMessage::new(header, Some(payload)))) + } else { + let header = Header::new(header::Kind::Response, channel, id); + Ok(Some(OutgoingMessage::new(header, None))) + } } + pub fn cancel_request( + &mut self, + channel: ChannelId, + id: Id, + ) -> Result, LocalProtocolViolation> { + let chan = self.lookup_channel_mut(channel)?; + + if !chan.outgoing_requests.remove(&id) { + // The request has been cancelled, no need to send a response. + return Ok(None); + } + + let header = Header::new(header::Kind::CancelReq, channel, id); + Ok(Some(OutgoingMessage::new(header, None))) + } + + pub fn cancel_response( + &mut self, + channel: ChannelId, + id: Id, + ) -> Result, LocalProtocolViolation> { + let chan = self.lookup_channel_mut(channel)?; + + if !chan.incoming_requests.remove(&id) { + // The request has been cancelled, no need to send a response. + return Ok(None); + } + + let header = Header::new(header::Kind::CancelReq, channel, id); + Ok(Some(OutgoingMessage::new(header, None))) + } + + pub fn custom_error(&mut self, channel: ChannelId, id: Id, payload: Bytes) -> OutgoingMessage { + let header = Header::new_error(header::ErrorKind::Other, channel, id); + OutgoingMessage::new(header, Some(payload)) + } + + /// Processes incoming data from a buffer. + /// + /// `buffer` should a continuously appended buffer receiving all incoming data. pub fn process_incoming(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { From d3b5e238251a4d2eb7e5c36f701a1c33e13be0fa Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 29 Jun 2023 13:18:03 +0200 Subject: [PATCH 481/735] juliet: Rename `reader` to `protocol` module --- juliet/src/lib.rs | 2 +- juliet/src/{reader.rs => protocol.rs} | 0 juliet/src/{reader => protocol}/multiframe.rs | 0 juliet/src/protocol/outgoing_message.rs | 129 ++++++++++++++++++ 4 files changed, 130 insertions(+), 1 deletion(-) rename juliet/src/{reader.rs => protocol.rs} (100%) rename juliet/src/{reader => protocol}/multiframe.rs (100%) create mode 100644 juliet/src/protocol/outgoing_message.rs diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index b9cbae6300..9ecef56adf 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -9,7 +9,7 @@ use std::{ }; mod header; -pub mod reader; +pub mod protocol; pub mod varint; /// A channel identifier. diff --git a/juliet/src/reader.rs b/juliet/src/protocol.rs similarity index 100% rename from juliet/src/reader.rs rename to juliet/src/protocol.rs diff --git a/juliet/src/reader/multiframe.rs b/juliet/src/protocol/multiframe.rs similarity index 100% rename from juliet/src/reader/multiframe.rs rename to juliet/src/protocol/multiframe.rs diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs new file mode 100644 index 0000000000..e9328e9d28 --- /dev/null +++ b/juliet/src/protocol/outgoing_message.rs @@ -0,0 +1,129 @@ +use std::{collections::HashSet, io::Cursor}; + +use bytemuck::{Pod, Zeroable}; +use bytes::{buf::Chain, Buf, Bytes}; + +use crate::{header::Header, varint::Varint32, ChannelConfiguration, Id}; + +#[must_use] +pub struct OutgoingMessage { + header: Header, + payload: Option, +} + +impl OutgoingMessage { + pub(super) fn new(header: Header, payload: Option) -> Self { + Self { header, payload } + } + + fn frames<'a>(&'a self) -> FrameIter<'a> { + FrameIter { + msg: self, + bytes_processed: 0, + } + } +} + +#[must_use] +struct FrameIter<'a> { + msg: &'a OutgoingMessage, + bytes_processed: usize, +} + +#[derive(Clone, Copy, Debug, Pod, Zeroable)] +#[repr(C)] +struct Preamble { + header: Header, + payload_length: Varint32, +} + +impl Preamble { + #[inline(always)] + fn new(header: Header, payload_length: Varint32) -> Self { + Self { + header, + payload_length, + } + } + + #[inline] + fn len(&self) -> usize { + Header::SIZE + self.payload_length.len() + } +} + +impl AsRef<[u8]> for Preamble { + #[inline] + fn as_ref(&self) -> &[u8] { + let bytes = bytemuck::bytes_of(self); + &bytes[0..(self.len())] + } +} + +impl<'a> FrameIter<'a> { + fn next(&mut self, max_frame_size: usize) -> Option { + if let Some(ref payload) = self.msg.payload { + let payload_remaining = payload.len() - self.bytes_processed; + + if payload_remaining == 0 { + return None; + } + + let length_prefix = if self.bytes_processed == 0 { + Varint32::encode(payload_remaining as u32) + } else { + Varint32::SENTINEL + }; + let preamble = if self.bytes_processed == 0 { + Preamble::new(self.msg.header, length_prefix) + } else { + Preamble::new(self.msg.header, Varint32::SENTINEL) + }; + + let frame_capacity = max_frame_size - preamble.len(); + let frame_payload_len = frame_capacity.min(payload_remaining); + + let range = self.bytes_processed..(self.bytes_processed + frame_payload_len); + let frame_payload = payload.slice(range); + self.bytes_processed += frame_payload_len; + + Some(OutgoingFrame::new_with_payload(preamble, frame_payload)) + } else { + if self.bytes_processed == 0 { + self.bytes_processed = usize::MAX; + return Some(OutgoingFrame::new(Preamble::new( + self.msg.header, + Varint32::SENTINEL, + ))); + } else { + return None; + } + } + } +} + +#[derive(Debug)] +#[repr(transparent)] +struct OutgoingFrame(Chain, Bytes>); + +impl OutgoingFrame { + #[inline(always)] + fn new(preamble: Preamble) -> Self { + Self::new_with_payload(preamble, Bytes::new()) + } + + #[inline(always)] + fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { + OutgoingFrame(Cursor::new(preamble).chain(payload)) + } +} + +pub struct Channel { + config: ChannelConfiguration, + outgoing_request_ids: HashSet, +} + +pub struct MessageWriteTracker { + /// Outgoing channels + channels: [Channel; N], +} From 38c2fd3ae5afaedff2471b71fe4020c92fefd35d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 29 Jun 2023 15:43:31 +0200 Subject: [PATCH 482/735] juliet: Document and cleanup everything but `protocol` module --- juliet/src/header.rs | 3 + juliet/src/lib.rs | 18 ++-- juliet/src/protocol.rs | 4 +- juliet/src/protocol/multiframe.rs | 5 +- juliet/src/protocol/outgoing_message.rs | 121 ++++++++++++++++++++---- juliet/src/varint.rs | 39 +++++++- 6 files changed, 158 insertions(+), 32 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index bf692af75f..cc0c93cb72 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -6,6 +6,9 @@ use bytemuck::{Pod, Zeroable}; use crate::{ChannelId, Id}; /// Header structure. +/// +/// Implements [`AsRef`], which will return a byte slice with the correct encoding of the header +/// that can be sent directly to a peer. // Note: `[u8; 4]` below should ideally be `[u8; Self::SIZE]`, but this prevents the `Zeroable` // derive from working. #[derive(Copy, Clone, Eq, PartialEq, Pod, Zeroable)] diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 9ecef56adf..e372f6d3eb 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,17 +1,18 @@ //! A `juliet` protocol implementation. //! -//! This crate implements the juliet multiplexing protocol as laid out in the juliet RFC. It aims to -//! be a secure, simple, easy to verify/review implementation that is still reasonably performant. +//! This crate implements the juliet multiplexing protocol as laid out in the [juliet +//! RFC](https://github.com/marc-casperlabs/juliet-rfc/blob/master/juliet.md). It aims to be a +//! secure, simple, easy to verify/review implementation that is still reasonably performant. + +mod header; +pub mod protocol; +pub mod varint; use std::{ fmt::{self, Display}, num::NonZeroU32, }; -mod header; -pub mod protocol; -pub mod varint; - /// A channel identifier. /// /// Newtype wrapper to prevent accidental mixups between regular [`u8`]s and those used as channel @@ -96,7 +97,7 @@ pub enum Outcome { } impl Outcome { - /// Expects the outcome, similar to [`std::result::Result::unwrap`]. + /// Expects the outcome, similar to [`std::result::Result::expect`]. /// /// Returns the value of [`Outcome::Success`]. /// @@ -126,6 +127,7 @@ impl Outcome { } } + /// Helper function to construct an [`Outcome::Incomplete`]. #[inline] #[track_caller] pub fn incomplete(remaining: usize) -> Outcome { @@ -151,7 +153,7 @@ macro_rules! try_outcome { }; } -/// Configuration values that need to be agreed upon by all clients. +/// Channel configuration values that needs to be agreed upon by all clients. #[derive(Copy, Clone, Debug)] struct ChannelConfiguration { /// Maximum number of requests allowed on the channel. diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 623dc5d70e..3d32ed5ed5 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -23,7 +23,7 @@ const UNKNOWN_ID: Id = Id::new(0); /// Does not handle IO, rather it expects a growing [`BytesMut`] buffer to be passed in, containing /// incoming data. #[derive(Debug)] -pub struct MessageReader { +pub struct JulietProtocol { /// Incoming channels channels: [Channel; N], max_frame_size: u32, @@ -105,7 +105,7 @@ pub enum LocalProtocolViolation { NonexistantRequest, } -impl MessageReader { +impl JulietProtocol { #[inline(always)] fn lookup_channel(&self, channel: ChannelId) -> Result<&Channel, LocalProtocolViolation> { if channel.0 as usize >= N { diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 91aff7eaa2..90f4dd950e 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -9,14 +9,15 @@ use bytes::{Buf, BytesMut}; use crate::{ header::{ErrorKind, Header}, - reader::Outcome::{self, Fatal, Success}, + protocol::Outcome::{self, Fatal, Success}, try_outcome, varint::decode_varint32, }; /// Bytes offset with a lifetime. /// -/// Helper type that ensures that offsets that are depending on a buffer are not being invalidated through accidental modification. +/// Helper type that ensures that offsets that are depending on a buffer are not being invalidated +/// through accidental modification. struct Index<'a> { /// The byte offset this `Index` represents. index: usize, diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index e9328e9d28..89921a92d8 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -1,22 +1,42 @@ -use std::{collections::HashSet, io::Cursor}; +//! Outgoing message data. +//! +//! The [`protocol`](crate::protocol) module exposes a pure, non-IO state machine for handling the +//! juliet networking protocol, this module contains the necessary output types like +//! [`OutgoingMessage`]. + +use std::io::Cursor; use bytemuck::{Pod, Zeroable}; use bytes::{buf::Chain, Buf, Bytes}; -use crate::{header::Header, varint::Varint32, ChannelConfiguration, Id}; +use crate::{header::Header, varint::Varint32}; +/// A message to be sent to the peer. +/// +/// [`OutgoingMessage`]s are generated when the protocol requires data to be sent to the peer. +/// Unless the connection is terminated, they should not be dropped, but can be sent in any order. +/// +/// While *frames* can be sent in any order, a message may span one or more frames, which can be +/// interspersed with other messages at will. In general, the [`OutgoingMessage::frames()`] iterator +/// should be used, even for single-frame messages. #[must_use] pub struct OutgoingMessage { + /// The common header for all outgoing messages. header: Header, + /// The payload, potentially split across multiple messages. payload: Option, } impl OutgoingMessage { + /// Constructs a new outgoing messages. + // Note: Do not make this function available to users of the library, to avoid them constructing + // messages by accident that may violate the protocol. pub(super) fn new(header: Header, payload: Option) -> Self { Self { header, payload } } - fn frames<'a>(&'a self) -> FrameIter<'a> { + /// Creates an iterator over all frames in the message. + pub fn frames<'a>(&'a self) -> FrameIter<'a> { FrameIter { msg: self, bytes_processed: 0, @@ -24,20 +44,28 @@ impl OutgoingMessage { } } -#[must_use] -struct FrameIter<'a> { - msg: &'a OutgoingMessage, - bytes_processed: usize, -} - +/// Combination of header and potential frame payload length. +/// +/// A message with a payload always start with an initial frame that has a header and a varint +/// encoded payload length. This type combines the two, and allows for the payload length to +/// effectively be omitted (through [`Varint32::SENTINEL`]). It has a compact, constant size memory +/// representation regardless of whether a variably sized integer is present or not. +/// +/// This type implements [`AsRef`], which will return the correctly encoded bytes suitable for +/// sending header and potential varint encoded length. #[derive(Clone, Copy, Debug, Pod, Zeroable)] #[repr(C)] struct Preamble { + /// The header, which is always sent. header: Header, + /// The payload length. If [`Varint32::SENTINEL`], it will always be omitted from output. payload_length: Varint32, } impl Preamble { + /// Creates a new preamble. + /// + /// Passing [`Varint32::SENTINEL`] as the length will cause it to be omitted. #[inline(always)] fn new(header: Header, payload_length: Varint32) -> Self { Self { @@ -46,6 +74,7 @@ impl Preamble { } } + /// Returns the length of the preamble when encoded as as a bytestring. #[inline] fn len(&self) -> usize { Header::SIZE + self.payload_length.len() @@ -60,8 +89,27 @@ impl AsRef<[u8]> for Preamble { } } +/// Iterator over frames of a message. +/// +/// Since [`FrameIter::next()`] requires the configured maximum frame size to operate, this type +/// does not implement the standard iterator interface. +#[must_use] +pub struct FrameIter<'a> { + /// The outgoing message in its entirety. + msg: &'a OutgoingMessage, + /// Number of bytes output using `OutgoingFrame`s so far. + bytes_processed: usize, +} + impl<'a> FrameIter<'a> { - fn next(&mut self, max_frame_size: usize) -> Option { + /// Returns the next frame to send. + /// + /// # Note + /// + /// While different [`OutgoingMessage`]s can have their send order mixed or interspersed, a + /// caller MUST NOT send [`OutgoingFrame`]s in any order but the one produced by this method. + /// In other words, reorder messages, but not frames within a message. + pub fn next(&mut self, max_frame_size: usize) -> Option { if let Some(ref payload) = self.msg.payload { let payload_remaining = payload.len() - self.bytes_processed; @@ -102,28 +150,65 @@ impl<'a> FrameIter<'a> { } } +/// A single frame to be sent. +/// +/// An [`OutgoingFrame`] implements [`bytes::Buf`], which will yield the bytes necessary to send it +/// across the wire to a peer. #[derive(Debug)] #[repr(transparent)] -struct OutgoingFrame(Chain, Bytes>); +#[must_use] +pub struct OutgoingFrame(Chain, Bytes>); impl OutgoingFrame { + /// Creates a new [`OutgoingFrame`] with no payload. + /// + /// # Panics + /// + /// Panics in debug mode if the [`Preamble`] contains a payload length. #[inline(always)] fn new(preamble: Preamble) -> Self { + debug_assert!( + preamble.payload_length.is_sentinel(), + "frame without payload should not have a payload length" + ); Self::new_with_payload(preamble, Bytes::new()) } + /// Creates a new [`OutgoingFrame`] with a payload. + /// + /// # Panics + /// + /// Panics in debug mode if [`Preamble`] does not have a correct payload length. #[inline(always)] fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { + debug_assert!( + !preamble.payload_length.is_sentinel() || (payload.len() == 0), + "frames without a payload must not contain a preamble with a payload length" + ); + + debug_assert!( + preamble.payload_length.is_sentinel() + || preamble.payload_length.decode() as usize == payload.len(), + "frames with a payload must have a matching decoded payload length" + ); + OutgoingFrame(Cursor::new(preamble).chain(payload)) } } -pub struct Channel { - config: ChannelConfiguration, - outgoing_request_ids: HashSet, -} +impl Buf for OutgoingFrame { + #[inline(always)] + fn remaining(&self) -> usize { + self.0.remaining() + } -pub struct MessageWriteTracker { - /// Outgoing channels - channels: [Channel; N], + #[inline(always)] + fn chunk(&self) -> &[u8] { + self.0.chunk() + } + + #[inline(always)] + fn advance(&mut self, cnt: usize) { + self.0.advance(cnt) + } } diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 9f18cce093..7fac5432ee 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -3,7 +3,10 @@ //! This module implements the variable length encoding of 32 bit integers, as described in the //! juliet RFC. -use std::num::{NonZeroU32, NonZeroU8}; +use std::{ + fmt::Debug, + num::{NonZeroU32, NonZeroU8}, +}; use bytemuck::{Pod, Zeroable}; @@ -56,9 +59,18 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { /// maximum length a 32 bit varint can posses is 5 bytes, the 6th bytes is used to record the /// length. #[repr(transparent)] -#[derive(Copy, Clone, Debug, Pod, Zeroable)] +#[derive(Copy, Clone, Pod, Zeroable)] pub struct Varint32([u8; 6]); +impl Debug for Varint32 { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + v if v.is_sentinel() => f.write_str("Varint32::SENTINEL"), + _ => f.debug_tuple("Varint32").field(&self.0).finish(), + } + } +} + impl Varint32 { /// `Varint32` sentinel. /// @@ -86,9 +98,30 @@ impl Varint32 { } /// Returns the number of bytes in the encoded varint. + #[inline(always)] pub const fn len(self) -> usize { self.0[5] as usize } + + /// Returns whether or not the given value is the sentinel value. + #[inline(always)] + pub const fn is_sentinel(self) -> bool { + self.len() == 0 + } + + /// Decodes the contained `Varint32`. + /// + /// Should only be used in debug assertions. The sentinel values is decoded as 0. + #[cfg(debug_assertions)] + pub(crate) fn decode(self) -> u32 { + if self.is_sentinel() { + return 0; + } + + decode_varint32(&self.0[..]) + .expect("did not expect self-encoded varint32 to fail decoding") + .value + } } impl AsRef<[u8]> for Varint32 { @@ -168,6 +201,7 @@ mod tests { fn roundtrip_value(value: u32) { let encoded = Varint32::encode(value); assert_eq!(encoded.len(), encoded.as_ref().len()); + assert!(!encoded.is_sentinel()); check_decode(value, encoded.as_ref()); } @@ -209,5 +243,6 @@ mod tests { #[test] fn sentinel_has_length_zero() { assert_eq!(Varint32::SENTINEL.len(), 0); + assert!(Varint32::SENTINEL.is_sentinel()); } } From 433c60b85332ec2a962dedaa9249102478ec868a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 29 Jun 2023 16:03:02 +0200 Subject: [PATCH 483/735] juliet: Make `FrameIter` own its message again --- juliet/src/protocol/outgoing_message.rs | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 89921a92d8..93eb0897aa 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -4,7 +4,7 @@ //! juliet networking protocol, this module contains the necessary output types like //! [`OutgoingMessage`]. -use std::io::Cursor; +use std::{io::Cursor, iter}; use bytemuck::{Pod, Zeroable}; use bytes::{buf::Chain, Buf, Bytes}; @@ -36,7 +36,7 @@ impl OutgoingMessage { } /// Creates an iterator over all frames in the message. - pub fn frames<'a>(&'a self) -> FrameIter<'a> { + pub fn frames(self) -> FrameIter { FrameIter { msg: self, bytes_processed: 0, @@ -90,18 +90,17 @@ impl AsRef<[u8]> for Preamble { } /// Iterator over frames of a message. -/// -/// Since [`FrameIter::next()`] requires the configured maximum frame size to operate, this type -/// does not implement the standard iterator interface. +// Note: This type can be written just borrowing `msg`, by making it owned, we prevent accidental +// duplicate message sending. Furthermore we allow methods like `into_iter` to be added. #[must_use] -pub struct FrameIter<'a> { +pub struct FrameIter { /// The outgoing message in its entirety. - msg: &'a OutgoingMessage, + msg: OutgoingMessage, /// Number of bytes output using `OutgoingFrame`s so far. bytes_processed: usize, } -impl<'a> FrameIter<'a> { +impl FrameIter { /// Returns the next frame to send. /// /// # Note @@ -148,6 +147,12 @@ impl<'a> FrameIter<'a> { } } } + + /// Returns a [`std::iter::Iterator`] implementing frame iterator. + #[inline] + pub fn into_iter(mut self, max_frame_size: usize) -> impl Iterator { + iter::from_fn(move || self.next(max_frame_size)) + } } /// A single frame to be sent. From c5f5501e59f9cfb97969a8806e73e1eccfec9d92 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 30 Jun 2023 16:39:05 +0200 Subject: [PATCH 484/735] Fix failing gh_3710 test. The issue was that `NonDeserializingStore` did not forward all the methods from base `Store` trait, and in result, ScratchTrie was misbehaving due to that. --- .../trie_store/operations/store_wrappers.rs | 117 +++++++++++++++++- 1 file changed, 116 insertions(+), 1 deletion(-) diff --git a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs index 903e67ca58..70054e8f5f 100644 --- a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -8,7 +8,12 @@ use std::{ use casper_hashing::Digest; use casper_types::bytesrepr::{self, FromBytes, ToBytes}; -use crate::storage::{store::Store, trie::Trie, trie_store::TrieStore}; +use crate::storage::{ + store::Store, + transaction_source::{Readable, Writable}, + trie::Trie, + trie_store::TrieStore, +}; /// A [`TrieStore`] wrapper that panics in debug mode whenever an attempt to deserialize [`V`] is /// made, otherwise it behaves as a [`TrieStore`]. @@ -58,6 +63,61 @@ where bytesrepr::deserialize_from_slice(bytes) } } + + #[inline] + fn serialize_value(&self, value: &Trie) -> Result, bytesrepr::Error> + where + Trie: ToBytes, + { + value.to_bytes() + } + + #[inline] + fn get(&self, txn: &T, key: &Digest) -> Result>, Self::Error> + where + T: Readable, + Digest: AsRef<[u8]>, + Trie: FromBytes, + Self::Error: From, + { + self.0.get(txn, key) + } + + #[inline] + fn get_raw(&self, txn: &T, key: &Digest) -> Result, Self::Error> + where + T: Readable, + Digest: AsRef<[u8]>, + Self::Error: From, + { + self.0.get_raw(txn, key) + } + + #[inline] + fn put(&self, txn: &mut T, key: &Digest, value: &Trie) -> Result<(), Self::Error> + where + T: Writable, + Digest: AsRef<[u8]>, + Trie: ToBytes, + Self::Error: From, + { + self.0.put(txn, key, value) + } + + #[inline] + fn put_raw( + &self, + txn: &mut T, + key: &Digest, + value_bytes: std::borrow::Cow<'_, [u8]>, + ) -> Result<(), Self::Error> + where + T: Writable, + Digest: AsRef<[u8]>, + Self::Error: From, + { + self.0.put_raw(txn, key, value_bytes) + } } pub(crate) struct OnceDeserializingStore<'a, K: ToBytes, V: ToBytes, S: TrieStore> { @@ -122,4 +182,59 @@ where bytesrepr::deserialize_from_slice(bytes) } } + + #[inline] + fn serialize_value(&self, value: &Trie) -> Result, bytesrepr::Error> + where + Trie: ToBytes, + { + self.store.serialize_value(value) + } + + #[inline] + fn get(&self, txn: &T, key: &Digest) -> Result>, Self::Error> + where + T: Readable, + Digest: AsRef<[u8]>, + Trie: FromBytes, + Self::Error: From, + { + self.store.get(txn, key) + } + + #[inline] + fn get_raw(&self, txn: &T, key: &Digest) -> Result, Self::Error> + where + T: Readable, + Digest: AsRef<[u8]>, + Self::Error: From, + { + self.store.get_raw(txn, key) + } + + #[inline] + fn put(&self, txn: &mut T, key: &Digest, value: &Trie) -> Result<(), Self::Error> + where + T: Writable, + Digest: AsRef<[u8]>, + Trie: ToBytes, + Self::Error: From, + { + self.store.put(txn, key, value) + } + + #[inline] + fn put_raw( + &self, + txn: &mut T, + key: &Digest, + value_bytes: std::borrow::Cow<'_, [u8]>, + ) -> Result<(), Self::Error> + where + T: Writable, + Digest: AsRef<[u8]>, + Self::Error: From, + { + self.store.put_raw(txn, key, value_bytes) + } } From 54766e85d89fcc5c6cb529f82926d27b5e0ea18f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 30 Jun 2023 16:48:52 +0200 Subject: [PATCH 485/735] Forward serialize_value call. --- .../src/storage/trie_store/operations/store_wrappers.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs index 70054e8f5f..418d73773e 100644 --- a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -69,7 +69,7 @@ where where Trie: ToBytes, { - value.to_bytes() + self.0.serialize_value(value) } #[inline] From 2673c04f406e59ba291bce5dd45a64e981fea507 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 30 Jun 2023 16:52:01 +0200 Subject: [PATCH 486/735] Forward all calls to the default implementation. --- .../src/storage/trie_store/operations/store_wrappers.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs index 418d73773e..2cb03b774e 100644 --- a/execution_engine/src/storage/trie_store/operations/store_wrappers.rs +++ b/execution_engine/src/storage/trie_store/operations/store_wrappers.rs @@ -52,7 +52,7 @@ where { #[cfg(debug_assertions)] { - let trie: Trie = bytesrepr::deserialize_from_slice(bytes)?; + let trie: Trie = self.0.deserialize_value(bytes)?; if let Trie::Leaf { .. } = trie { panic!("Tried to deserialize a value but expected no deserialization to happen.") } @@ -60,7 +60,7 @@ where } #[cfg(not(debug_assertions))] { - bytesrepr::deserialize_from_slice(bytes) + self.0.deserialize_value(bytes) } } @@ -165,7 +165,7 @@ where { #[cfg(debug_assertions)] { - let trie: Trie = bytesrepr::deserialize_from_slice(bytes)?; + let trie: Trie = self.store.deserialize_value(bytes)?; if let Trie::Leaf { .. } = trie { let trie_hash = trie.trie_hash()?; let mut tracking = self.deserialize_tracking.lock().expect("Poisoned lock"); @@ -179,7 +179,7 @@ where } #[cfg(not(debug_assertions))] { - bytesrepr::deserialize_from_slice(bytes) + self.store.deserialize_value(bytes) } } From 14cb9f35f145de12d2358cd954dd3e1d6ea6a596 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 30 Jun 2023 17:19:28 +0200 Subject: [PATCH 487/735] juliet: Cleaned up and documented first (untested) version of `JulietProtocol` --- Cargo.lock | 1 + juliet/Cargo.toml | 1 + juliet/src/lib.rs | 38 ++- juliet/src/protocol.rs | 300 +++++++++++++++++++++--- juliet/src/protocol/outgoing_message.rs | 22 +- juliet/src/varint.rs | 3 + 6 files changed, 332 insertions(+), 33 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 24e8572342..f395fd8eba 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2482,6 +2482,7 @@ dependencies = [ name = "juliet" version = "0.1.0" dependencies = [ + "array-init", "bytemuck", "bytes", "proptest", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 1795514bdc..fb47c60b9e 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -5,6 +5,7 @@ edition = "2021" authors = [ "Marc Brinkmann " ] [dependencies] +array-init = "2.1.0" bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" thiserror = "1.0.40" diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index e372f6d3eb..d202ec50b5 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -155,7 +155,7 @@ macro_rules! try_outcome { /// Channel configuration values that needs to be agreed upon by all clients. #[derive(Copy, Clone, Debug)] -struct ChannelConfiguration { +pub struct ChannelConfiguration { /// Maximum number of requests allowed on the channel. request_limit: u32, /// Maximum size of a request sent across the channel. @@ -164,6 +164,42 @@ struct ChannelConfiguration { max_response_payload_size: u32, } +impl Default for ChannelConfiguration { + fn default() -> Self { + Self { + request_limit: 1, + max_request_payload_size: 0, + max_response_payload_size: 0, + } + } +} + +impl ChannelConfiguration { + /// Creates a configuration the given request limit (the default is 1). + pub fn with_request_limit(mut self, request_limit: u32) -> ChannelConfiguration { + self.request_limit = request_limit; + self + } + + /// Creates a configuration the given maximum size for request payloads (the default is 0). + pub fn with_max_request_payload_size( + mut self, + max_request_payload_size: u32, + ) -> ChannelConfiguration { + self.max_request_payload_size = max_request_payload_size; + self + } + + /// Creates a configuration the given maximum size for response payloads (the default is 0). + pub fn with_max_response_payload_size( + mut self, + max_response_payload_size: u32, + ) -> ChannelConfiguration { + self.max_response_payload_size = max_response_payload_size; + self + } +} + #[cfg(test)] mod tests { use proptest::{ diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 3d32ed5ed5..d3cf603538 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -1,4 +1,12 @@ -//! Incoming message parser. +//! Protocol parsing state machine. +//! +//! The [`JulietProtocol`] type is designed to encapsulate the entire juliet protocol without any +//! dependencies on IO facilities; it can thus be dropped into almost any environment (`std::io`, +//! various `async` runtimes, etc.) with no changes. +//! +//! ## Usage +//! +//! TBW mod multiframe; mod outgoing_message; @@ -15,41 +23,134 @@ use crate::{ Outcome::{self, Fatal, Incomplete, Success}, }; +/// A channel ID to fill in when the channel is actually or not relevant unknown. +/// +/// Note that this is not a reserved channel, just a default chosen -- it may clash with an +/// actually active channel. const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); + +/// An ID to fill in when the ID should not matter. +/// +/// Note a reserved id, it may clash with existing ones. const UNKNOWN_ID: Id = Id::new(0); -/// A parser/state machine that processes an incoming stream. +/// A parser/state machine that processes an incoming stream and is able to construct messages to +/// send out. /// -/// Does not handle IO, rather it expects a growing [`BytesMut`] buffer to be passed in, containing -/// incoming data. +/// This type does not handle IO, rather it expects a growing [`BytesMut`] buffer to be passed in, +/// containing incoming data. `N` denotes the number of valid channels, which should be fixed and +/// agreed upon by both peers prior to initialization. +/// +/// Various methods for creating produce [`OutgoingMessage`] values, these should be converted into +/// frames (via [`OutgoingMessage::frames()`]) and the resulting frames sent to the peer. #[derive(Debug)] pub struct JulietProtocol { - /// Incoming channels + /// Bi-directional channels. channels: [Channel; N], + /// The maximum size for a single frame. + max_frame_size: u32, +} + +/// A builder for a [`JulietProtocol`] instance. +/// +/// Created using [`JulietProtocol::builder`]. +/// +/// # Note +/// +/// Typically a single instance of the [`ProtocolBuilder`] can be kept around in an application +/// handling multiple connections, as its `build()` method can be reused for every new connection +/// instance. +pub struct ProtocolBuilder { + /// Configuration for every channel. + channel_config: [ChannelConfiguration; N], + /// Maximum frame size. max_frame_size: u32, } +impl ProtocolBuilder { + /// Update the channel configuration for a given channel. + pub fn channel_config(mut self, channel: ChannelId, config: ChannelConfiguration) -> Self { + self.channel_config[channel.get() as usize] = config; + self + } + + /// Constructs a new protocol instance from the given builder. + pub fn build(&self) -> JulietProtocol { + let channels: [Channel; N] = + array_init::map_array_init(&self.channel_config, |cfg| Channel::new(*cfg)); + + JulietProtocol { + channels, + max_frame_size: self.max_frame_size, + } + } +} + +/// Per-channel data. +/// +/// Used internally by the protocol to keep track. This data structure closely tracks the +/// information specified in the juliet RFC. #[derive(Debug)] struct Channel { + /// A set of request IDs from requests received that have not been answered with a response or + /// cancellation yet. incoming_requests: HashSet, + /// A set of request IDs for requests made for which no response or cancellation has been + /// received yet. outgoing_requests: HashSet, + /// The multiframe receiver state machine. + /// + /// Every channel allows for at most one multi-frame message to be in progress at the same time. current_multiframe_receive: MultiframeReceiver, + /// Number of requests received minus number of cancellations received. + /// + /// Capped at the request limit. cancellation_allowance: u32, + /// Protocol-specific configuration values. config: ChannelConfiguration, + /// The last request ID generated. prev_request_id: u16, } impl Channel { - #[inline] - fn in_flight_requests(&self) -> u32 { - self.incoming_requests.len() as u32 + /// Creates a new channel, based on the given configuration. + #[inline(always)] + fn new(config: ChannelConfiguration) -> Self { + Channel { + incoming_requests: Default::default(), + outgoing_requests: Default::default(), + current_multiframe_receive: MultiframeReceiver::default(), + cancellation_allowance: 0, + config, + prev_request_id: 0, + } } + /// Returns whether or not the peer has exhausted the number of requests allowed. + /// + /// Depending on the size of the payload an [`OutgoingMessage`] may span multiple frames. On a + /// single channel, only one multi-frame message may be in the process of sending at a time, + /// thus it is not permissable to begin sending frames of a different multi-frame message before + /// the send of a previous one has been completed. + /// + /// Additional single-frame messages can be interspersed in between at will. + /// + /// [`JulietProtocol`] does not track whether or not a multi-channel message is in-flight; it is + /// up to the caller to ensure no second multi-frame message commences sending before the first + /// one completes. + /// + /// This problem can be avoided in its entirety if all frames of all messages created on a + /// single channel are sent in the order they are created. + /// + /// Additionally frames of a single message may also not be reordered. #[inline] - fn is_at_max_requests(&self) -> bool { - self.in_flight_requests() == self.config.request_limit + pub fn is_at_max_incoming_requests(&self) -> bool { + self.incoming_requests.len() as u32 == self.config.request_limit } + /// Increments the cancellation allowance if possible. + /// + /// This method should be called everytime a valid request is received. #[inline] fn increment_cancellation_allowance(&mut self) { if self.cancellation_allowance < self.config.request_limit { @@ -85,27 +186,81 @@ impl Channel { } } +/// A successful read from the peer. +#[must_use] pub enum CompletedRead { + /// An error has been received. + /// + /// The connection on our end should be closed, the peer will do the same. ErrorReceived(Header), - NewRequest { id: Id, payload: Option }, - ReceivedResponse { id: Id, payload: Option }, - RequestCancellation { id: Id }, - ResponseCancellation { id: Id }, + /// A new request has been received. + NewRequest { + /// The ID of the request. + id: Id, + /// Request payload. + payload: Option, + }, + /// A response to one of our requests has been received. + ReceivedResponse { + /// The ID of the request received. + id: Id, + /// The response payload. + payload: Option, + }, + /// A request was cancelled by the peer. + RequestCancellation { + /// ID of the request to be cancelled. + id: Id, + }, + /// A response was cancelled by the peer. + ResponseCancellation { + /// The ID of the response to be cancelled. + id: Id, + }, } +/// The caller of the this crate has violated the protocol. +/// +/// A correct implementation of a client should never encounter this, thus simply unwrapping every +/// instance of this as part of a `Result<_, LocalProtocolViolation>` is usually a valid choice. #[derive(Copy, Clone, Debug, Error)] pub enum LocalProtocolViolation { - /// TODO: docs with hint what the programming error could be + /// A request was not sent because doing so would exceed the request limit on channel. + /// + /// Wait for addtional requests to be cancelled or answered. Calling + /// [`JulietProtocol::allowed_to_send_request()`] before hand is recommended. #[error("sending would exceed request limit")] WouldExceedRequestLimit, - /// TODO: docs with hint what the programming error could be + /// The channel given does not exist. + /// + /// The given [`ChannelId`] exceeds `N` of [`JulietProtocol`]. #[error("invalid channel")] InvalidChannel(ChannelId), - #[error("cannot respond to request that does not exist")] - NonexistantRequest, + /// The given payload exceeds the configured limit. + #[error("payload exceeds configured limit")] + PayloadExceedsLimit, } impl JulietProtocol { + /// Creates a new juliet protocol builder instance. + /// + /// All channels will initially be set to upload limits using `default_max_payload`. + /// + /// # Panics + /// + /// Will panic if `max_frame_size` is too small to hold header and payload length encoded, i.e. + /// < 9 bytes. + #[inline] + pub fn builder(config: ChannelConfiguration) -> ProtocolBuilder { + ProtocolBuilder { + channel_config: [config; N], + max_frame_size: 1024, + } + } + + /// Looks up a given channel by ID. + /// + /// Returns a `LocalProtocolViolation` if called with non-existant channel. #[inline(always)] fn lookup_channel(&self, channel: ChannelId) -> Result<&Channel, LocalProtocolViolation> { if channel.0 as usize >= N { @@ -115,6 +270,9 @@ impl JulietProtocol { } } + /// Looks up a given channel by ID, mutably. + /// + /// Returns a `LocalProtocolViolation` if called with non-existant channel. #[inline(always)] fn lookup_channel_mut( &mut self, @@ -133,18 +291,25 @@ impl JulietProtocol { &self, channel: ChannelId, ) -> Result { - let chan = self.lookup_channel(channel)?; - - Ok(chan.outgoing_requests.len() < chan.config.request_limit as usize) + self.lookup_channel(channel) + .map(Channel::allowed_to_send_request) } /// Creates a new request to be sent. /// - /// # Note + /// The outgoing request message's ID will be recorded in the outgoing set, for this reason a + /// caller must send the returned outgoing message or it will be considered in-flight + /// perpetually, unless explicitly cancelled. + /// + /// The resulting messages may be multi-frame messages, see + /// [`OutgoingMessage::is_multi_frame()`]) for details. /// - /// It is advisable to call [`MessageReader::allowed_to_send_request`] before calling - /// `create_request`, otherwise there is risk of a - /// [`LocalProtocolViolation::WouldExceedRateLimit`]. + /// # Local protocol violations + /// + /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel, the + /// payload exceeds the configured maximum for the channel, or if the request rate limit has + /// been exceeded. Call [`JulietProtocol::allowed_to_send_request`] before calling + /// `create_request` to avoid this. pub fn create_request( &mut self, channel: ChannelId, @@ -152,15 +317,21 @@ impl JulietProtocol { ) -> Result { let chan = self.lookup_channel_mut(channel)?; + if let Some(ref payload) = payload { + if payload.len() > chan.config.max_request_payload_size as usize { + return Err(LocalProtocolViolation::PayloadExceedsLimit); + } + } + if !chan.allowed_to_send_request() { return Err(LocalProtocolViolation::WouldExceedRequestLimit); } - // The `unwrap_or_default` below should never be triggered, as long as we `u16::MAX` or less + // The `unwrap_or_default` below should never be triggered, as long as `u16::MAX` or less // requests are currently in flight, which is always the case. let id = chan.generate_request_id().unwrap_or(Id(0)); - // Note the outgoing request for later. + // Record the outgoing request for later. chan.outgoing_requests.insert(id); if let Some(payload) = payload { @@ -172,6 +343,22 @@ impl JulietProtocol { } } + /// Creates a new response to be sent. + /// + /// If the ID was not in the outgoing set, it is assumed to have been cancelled earlier, thus no + /// response should be sent and `None` is returned by this method. + /// + /// Calling this method frees up a request ID, thus giving the remote peer permission to make + /// additional requests. While a legitimate peer will not know about the free ID until is has + /// received either a response or cancellation sent from the local end, an hostile peer could + /// attempt to spam if it knew the ID was going to be available quickly. For this reason, it is + /// recommended to not create responses too eagerly, rather only one at a time after the + /// previous response has finished sending. + /// + /// # Local protocol violations + /// + /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel or + /// the payload exceeds the configured maximum for the channel. pub fn create_response( &mut self, channel: ChannelId, @@ -185,6 +372,12 @@ impl JulietProtocol { return Ok(None); } + if let Some(ref payload) = payload { + if payload.len() > chan.config.max_response_payload_size as usize { + return Err(LocalProtocolViolation::PayloadExceedsLimit); + } + } + if let Some(payload) = payload { let header = Header::new(header::Kind::ResponsePl, channel, id); Ok(Some(OutgoingMessage::new(header, Some(payload)))) @@ -194,6 +387,18 @@ impl JulietProtocol { } } + /// Creates a cancellation for an outgoing request. + /// + /// If the ID is not in the outgoing set, due to already being responsed to or cancelled, `None` + /// will be returned. + /// + /// If the caller does not track the use of IDs separately to the [`JulietProtocol`] structure, + /// it is possible to cancel an ID that has already been reused. To avoid this, a caller should + /// take measures to ensure that only response or cancellation is ever sent for a given request. + /// + /// # Local protocol violations + /// + /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel. pub fn cancel_request( &mut self, channel: ChannelId, @@ -202,7 +407,9 @@ impl JulietProtocol { let chan = self.lookup_channel_mut(channel)?; if !chan.outgoing_requests.remove(&id) { - // The request has been cancelled, no need to send a response. + // The request has been cancelled, no need to send a response. This also prevents us + // from ever violating the cancellation limit by accident, if all requests are sent + // properly. return Ok(None); } @@ -210,6 +417,16 @@ impl JulietProtocol { Ok(Some(OutgoingMessage::new(header, None))) } + /// Creates a cancellation of an incoming request. + /// + /// Incoming request cancellations are used to indicate that the local peer cannot or will not + /// respond to a given request. Since only either a response or a cancellation can be sent for + /// any given request, this function will return `None` if the given ID cannot be found in the + /// outbound set. + /// + /// # Local protocol violations + /// + /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel. pub fn cancel_response( &mut self, channel: ChannelId, @@ -226,6 +443,11 @@ impl JulietProtocol { Ok(Some(OutgoingMessage::new(header, None))) } + /// Creates an error message with type [`ErrorKind::Other`]. + /// + /// # Local protocol violations + /// + /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel. pub fn custom_error(&mut self, channel: ChannelId, id: Id, payload: Bytes) -> OutgoingMessage { let header = Header::new_error(header::ErrorKind::Other, channel, id); OutgoingMessage::new(header, Some(payload)) @@ -233,7 +455,23 @@ impl JulietProtocol { /// Processes incoming data from a buffer. /// - /// `buffer` should a continuously appended buffer receiving all incoming data. + /// This is the main ingress function of [`JulietProtocol`]. `buffer` should continuously be + /// appended with all incoming data; the [`Outcome`] returned indicates when the function should + /// be called next: + /// + /// * [`Outcome::Success`] indicates `process_incoming` should be called again as early as + /// possible, since additional messages may already be contained in `buffer`. + /// * [`Outcome::Incomplete(n)`] tells the caller to not call `process_incoming` again before at + /// least `n` additional bytes have been added to bufer. + /// * [`Outcome::Fatal`] indicates that the remote peer violated the protocol, the returned + /// [`Header`] should be attempted to be sent to the peer before the connection is being + /// closed. + /// + /// This method transparently handles multi-frame sends, any incomplete messages will be + /// buffered internally until they are complete. + /// + /// Any successful frame read will cause `buffer` to be advanced by the length of the frame, + /// thus eventually freeing the data if not held elsewhere. pub fn process_incoming(&mut self, mut buffer: BytesMut) -> Outcome { // First, attempt to complete a frame. loop { @@ -277,7 +515,7 @@ impl JulietProtocol { match header.kind() { Kind::Request => { - if channel.is_at_max_requests() { + if channel.is_at_max_incoming_requests() { return Fatal(header.with_err(ErrorKind::RequestLimitExceeded)); } @@ -312,7 +550,7 @@ impl JulietProtocol { if is_new_request { // If we're in the ready state, requests must be eagerly rejected if // exceeding the limit. - if channel.is_at_max_requests() { + if channel.is_at_max_incoming_requests() { return Fatal(header.with_err(ErrorKind::RequestLimitExceeded)); } diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 93eb0897aa..4f147235e0 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -31,10 +31,24 @@ impl OutgoingMessage { /// Constructs a new outgoing messages. // Note: Do not make this function available to users of the library, to avoid them constructing // messages by accident that may violate the protocol. + #[inline(always)] pub(super) fn new(header: Header, payload: Option) -> Self { Self { header, payload } } + /// Returns whether or not a message will span multiple frames. + #[inline(always)] + pub fn is_multi_frame(&self, max_frame_size: usize) -> bool { + if let Some(ref payload) = self.payload { + let payload_size = payload.len(); + payload_size + Header::SIZE + (Varint32::encode(payload_size as u32)).len() + > max_frame_size + } else { + false + } + } + + #[inline(always)] /// Creates an iterator over all frames in the message. pub fn frames(self) -> FrameIter { FrameIter { @@ -183,7 +197,8 @@ impl OutgoingFrame { /// /// # Panics /// - /// Panics in debug mode if [`Preamble`] does not have a correct payload length. + /// Panics in debug mode if [`Preamble`] does not have a correct payload length, or if the + /// payload exceeds `u32::MAX` in size. #[inline(always)] fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { debug_assert!( @@ -197,6 +212,11 @@ impl OutgoingFrame { "frames with a payload must have a matching decoded payload length" ); + debug_assert!( + payload.len() <= u32::MAX as usize, + "payload exceeds maximum allowed payload" + ); + OutgoingFrame(Cursor::new(preamble).chain(payload)) } } diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 7fac5432ee..68517d32cf 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -79,6 +79,9 @@ impl Varint32 { /// `SENTINEL` is guaranteed to be `0`. pub const SENTINEL: Varint32 = Varint32([0u8; 6]); + /// The maximum encoded length of a [`Varint32`]. + pub const MAX_LEN: usize = 5; + /// Encode a 32-bit integer to variable length. pub const fn encode(mut value: u32) -> Self { let mut output = [0u8; 6]; From 7b6b797fe4b0bc1f5d157fd3419a73589b87fb69 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 30 Jun 2023 17:48:19 +0200 Subject: [PATCH 488/735] juliet: Make the request limit a 16 bit integer --- juliet/src/lib.rs | 4 ++-- juliet/src/protocol.rs | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index d202ec50b5..0b17d53c1d 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -157,7 +157,7 @@ macro_rules! try_outcome { #[derive(Copy, Clone, Debug)] pub struct ChannelConfiguration { /// Maximum number of requests allowed on the channel. - request_limit: u32, + request_limit: u16, /// Maximum size of a request sent across the channel. max_request_payload_size: u32, /// Maximum size of a response sent across the channel. @@ -176,7 +176,7 @@ impl Default for ChannelConfiguration { impl ChannelConfiguration { /// Creates a configuration the given request limit (the default is 1). - pub fn with_request_limit(mut self, request_limit: u32) -> ChannelConfiguration { + pub fn with_request_limit(mut self, request_limit: u16) -> ChannelConfiguration { self.request_limit = request_limit; self } diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index d3cf603538..f06b5b58e3 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -105,7 +105,7 @@ struct Channel { /// Number of requests received minus number of cancellations received. /// /// Capped at the request limit. - cancellation_allowance: u32, + cancellation_allowance: u16, /// Protocol-specific configuration values. config: ChannelConfiguration, /// The last request ID generated. @@ -145,7 +145,7 @@ impl Channel { /// Additionally frames of a single message may also not be reordered. #[inline] pub fn is_at_max_incoming_requests(&self) -> bool { - self.incoming_requests.len() as u32 == self.config.request_limit + self.incoming_requests.len() == self.config.request_limit as usize } /// Increments the cancellation allowance if possible. From 89ce7301e8dcfd59bdad2fcbd1e61c8fa7546e35 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 30 Jun 2023 18:03:01 +0200 Subject: [PATCH 489/735] juliet: Return `OutgoingMessage`s instead of `Header`s on error --- juliet/src/protocol.rs | 43 +++++++++++++++++++------------ juliet/src/protocol/multiframe.rs | 21 ++++++++++----- 2 files changed, 41 insertions(+), 23 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index f06b5b58e3..effae0f219 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -472,7 +472,10 @@ impl JulietProtocol { /// /// Any successful frame read will cause `buffer` to be advanced by the length of the frame, /// thus eventually freeing the data if not held elsewhere. - pub fn process_incoming(&mut self, mut buffer: BytesMut) -> Outcome { + pub fn process_incoming( + &mut self, + mut buffer: BytesMut, + ) -> Outcome { // First, attempt to complete a frame. loop { // We do not have enough data to extract a header, indicate and return. @@ -485,10 +488,9 @@ impl JulietProtocol { Some(header) => header, None => { // The header was invalid, return an error. - return Fatal(Header::new_error( - ErrorKind::InvalidHeader, - UNKNOWN_CHANNEL, - UNKNOWN_ID, + return Fatal(OutgoingMessage::new( + Header::new_error(ErrorKind::InvalidHeader, UNKNOWN_CHANNEL, UNKNOWN_ID), + None, )); } }; @@ -510,17 +512,17 @@ impl JulietProtocol { // At this point we are guaranteed a valid non-error frame, verify its channel. let channel = match self.channels.get_mut(header.channel().get() as usize) { Some(channel) => channel, - None => return Fatal(header.with_err(ErrorKind::InvalidChannel)), + None => return err_msg(header, ErrorKind::InvalidChannel), }; match header.kind() { Kind::Request => { if channel.is_at_max_incoming_requests() { - return Fatal(header.with_err(ErrorKind::RequestLimitExceeded)); + return err_msg(header, ErrorKind::RequestLimitExceeded); } if channel.incoming_requests.insert(header.id()) { - return Fatal(header.with_err(ErrorKind::DuplicateRequest)); + return err_msg(header, ErrorKind::DuplicateRequest); } channel.increment_cancellation_allowance(); @@ -535,7 +537,7 @@ impl JulietProtocol { } Kind::Response => { if !channel.outgoing_requests.remove(&header.id()) { - return Fatal(header.with_err(ErrorKind::FictitiousRequest)); + return err_msg(header, ErrorKind::FictitiousRequest); } else { return Success(CompletedRead::ReceivedResponse { id: header.id(), @@ -551,12 +553,12 @@ impl JulietProtocol { // If we're in the ready state, requests must be eagerly rejected if // exceeding the limit. if channel.is_at_max_incoming_requests() { - return Fatal(header.with_err(ErrorKind::RequestLimitExceeded)); + return err_msg(header, ErrorKind::RequestLimitExceeded); } // We also check for duplicate requests early to avoid reading them. if channel.incoming_requests.contains(&header.id()) { - return Fatal(header.with_err(ErrorKind::DuplicateRequest)); + return err_msg(header, ErrorKind::DuplicateRequest); } }; @@ -572,7 +574,7 @@ impl JulietProtocol { // If we made it to this point, we have consumed the frame. Record it. if is_new_request { if channel.incoming_requests.insert(header.id()) { - return Fatal(header.with_err(ErrorKind::DuplicateRequest)); + return err_msg(header, ErrorKind::DuplicateRequest); } channel.increment_cancellation_allowance(); } @@ -598,7 +600,7 @@ impl JulietProtocol { // Ensure it is not a bogus response. if is_new_response { if !channel.outgoing_requests.contains(&header.id()) { - return Fatal(header.with_err(ErrorKind::FictitiousRequest)); + return err_msg(header, ErrorKind::FictitiousRequest); } } @@ -614,7 +616,7 @@ impl JulietProtocol { // If we made it to this point, we have consumed the frame. if is_new_response { if !channel.outgoing_requests.remove(&header.id()) { - return Fatal(header.with_err(ErrorKind::FictitiousRequest)); + return err_msg(header, ErrorKind::FictitiousRequest); } } @@ -637,7 +639,7 @@ impl JulietProtocol { // cancellation races. For security reasons they are subject to an allowance. if channel.cancellation_allowance == 0 { - return Fatal(header.with_err(ErrorKind::CancellationLimitExceeded)); + return err_msg(header, ErrorKind::CancellationLimitExceeded); } channel.cancellation_allowance -= 1; @@ -649,10 +651,19 @@ impl JulietProtocol { if channel.outgoing_requests.remove(&header.id()) { return Success(CompletedRead::ResponseCancellation { id: header.id() }); } else { - return Fatal(header.with_err(ErrorKind::FictitiousCancel)); + return err_msg(header, ErrorKind::FictitiousCancel); } } } } } } + +/// Turn a header and an [`ErrorKind`] into an outgoing message. +/// +/// Pure convenience function for the common use case of producing a response message from a +/// received header with an appropriate error. +#[inline(always)] +fn err_msg(header: Header, kind: ErrorKind) -> Outcome { + Fatal(OutgoingMessage::new(header.with_err(kind), None)) +} diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 90f4dd950e..9dc6b9fad7 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -9,11 +9,16 @@ use bytes::{Buf, BytesMut}; use crate::{ header::{ErrorKind, Header}, - protocol::Outcome::{self, Fatal, Success}, + protocol::{ + err_msg, + Outcome::{self, Success}, + }, try_outcome, varint::decode_varint32, }; +use super::outgoing_message::OutgoingMessage; + /// Bytes offset with a lifetime. /// /// Helper type that ensures that offsets that are depending on a buffer are not being invalidated @@ -73,7 +78,7 @@ impl MultiframeReceiver { /// intermediate segment was processed without completing the message, both are still consume, /// but `None` is returned instead. This method will never consume more than one frame. /// - /// On any error, [`Outcome::Err`] with a suitable header to return to the sender is returned. + /// On any error, [`Outcome::Err`] with a suitable message to return to the sender is returned. /// /// `max_payload_size` is the maximum size of a payload across multiple frames. If it is /// exceeded, the `payload_exceeded_error_kind` function is used to construct an error `Header` @@ -90,7 +95,7 @@ impl MultiframeReceiver { max_frame_size: u32, max_payload_size: u32, payload_exceeded_error_kind: ErrorKind, - ) -> Outcome, Header> { + ) -> Outcome, OutgoingMessage> { debug_assert!( max_frame_size >= 10, "maximum frame size must be enough to hold header and varint" @@ -101,13 +106,15 @@ impl MultiframeReceiver { // We have a new segment, which has a variable size. let segment_buf = &buffer[Header::SIZE..]; - let payload_size = try_outcome!(decode_varint32(segment_buf) - .map_err(|_overflow| header.with_err(ErrorKind::BadVarInt))); + let payload_size = + try_outcome!(decode_varint32(segment_buf).map_err(|_overflow| { + OutgoingMessage::new(header.with_err(ErrorKind::BadVarInt), None) + })); { { if payload_size.value > max_payload_size { - return Fatal(header.with_err(payload_exceeded_error_kind)); + return err_msg(header, payload_exceeded_error_kind); } // We have a valid varint32. @@ -157,7 +164,7 @@ impl MultiframeReceiver { } => { if header != *active_header { // The newly supplied header does not match the one active. - return Fatal(header.with_err(ErrorKind::InProgress)); + return err_msg(header, ErrorKind::InProgress); } // Determine whether we expect an intermediate or end segment. From 84c5c6e70078593ac788cef7db263790d6b6fdfd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 30 Jun 2023 18:15:44 +0200 Subject: [PATCH 490/735] juliet: Allow for receiving an error code --- juliet/src/protocol.rs | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index effae0f219..f1a0cbac0a 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -192,7 +192,12 @@ pub enum CompletedRead { /// An error has been received. /// /// The connection on our end should be closed, the peer will do the same. - ErrorReceived(Header), + ErrorReceived { + /// The error header. + header: Header, + /// The error data (only with [`ErrorKind::Other`]). + data: Option<[u8; 4]>, + }, /// A new request has been received. NewRequest { /// The ID of the request. @@ -499,12 +504,24 @@ impl JulietProtocol { if header.is_error() { match header.error_kind() { ErrorKind::Other => { - // TODO: `OTHER` errors may contain a payload. + // `Other` allows for adding error data, which is fixed at 4 bytes. + let expected_total_length = buffer.len() + Header::SIZE + 4; + + if buffer.len() < expected_total_length { + return Outcome::incomplete(expected_total_length - buffer.len()); + } - unimplemented!() + let data = buffer[4..8] + .try_into() + .expect("did not expect previously bounds checked buffer read to fail"); + + return Success(CompletedRead::ErrorReceived { + header, + data: Some(data), + }); } _ => { - return Success(CompletedRead::ErrorReceived(header)); + return Success(CompletedRead::ErrorReceived { header, data: None }); } } } From 902db043ee6fda0bc8ed96960085fe42fee31533 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 1 Jul 2023 16:20:42 +0200 Subject: [PATCH 491/735] juliet: Make error payloads bytestrings until frame end --- juliet/src/lib.rs | 1 + juliet/src/protocol.rs | 40 +++++++++++++++++++++++-------- juliet/src/protocol/multiframe.rs | 33 ++----------------------- juliet/src/util.rs | 35 +++++++++++++++++++++++++++ 4 files changed, 68 insertions(+), 41 deletions(-) create mode 100644 juliet/src/util.rs diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 0b17d53c1d..112159d26c 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -6,6 +6,7 @@ mod header; pub mod protocol; +pub(crate) mod util; pub mod varint; use std::{ diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index f1a0cbac0a..489df45bb5 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -19,7 +19,10 @@ use thiserror::Error; use self::{multiframe::MultiframeReceiver, outgoing_message::OutgoingMessage}; use crate::{ header::{self, ErrorKind, Header, Kind}, - try_outcome, ChannelConfiguration, ChannelId, Id, + try_outcome, + util::Index, + varint::decode_varint32, + ChannelConfiguration, ChannelId, Id, Outcome::{self, Fatal, Incomplete, Success}, }; @@ -196,7 +199,7 @@ pub enum CompletedRead { /// The error header. header: Header, /// The error data (only with [`ErrorKind::Other`]). - data: Option<[u8; 4]>, + data: Option, }, /// A new request has been received. NewRequest { @@ -504,20 +507,37 @@ impl JulietProtocol { if header.is_error() { match header.error_kind() { ErrorKind::Other => { - // `Other` allows for adding error data, which is fixed at 4 bytes. - let expected_total_length = buffer.len() + Header::SIZE + 4; + // The error data is varint encoded, but must not exceed a single frame. + let tail = &buffer[Header::SIZE..]; + + // This can be confusing for the other end, receiving an error for their + // error, but they should not send malformed errors in the first place! + let parsed_length = + try_outcome!(decode_varint32(tail).map_err(|_overflow| { + OutgoingMessage::new(header.with_err(ErrorKind::BadVarInt), None) + })); + + // Create indices into buffer. + let preamble_end = + Index::new(&buffer, Header::SIZE + parsed_length.offset.get() as usize); + let payload_length = parsed_length.value as usize; + let frame_end = Index::new(&buffer, *preamble_end + payload_length); + + // No multi-frame messages allowed! + if *frame_end > self.max_frame_size as usize { + return err_msg(header, ErrorKind::SegmentViolation); + } - if buffer.len() < expected_total_length { - return Outcome::incomplete(expected_total_length - buffer.len()); + if buffer.len() < *frame_end { + return Outcome::incomplete(*frame_end - buffer.len()); } - let data = buffer[4..8] - .try_into() - .expect("did not expect previously bounds checked buffer read to fail"); + buffer.advance(*preamble_end); + let payload = buffer.split_to(payload_length); return Success(CompletedRead::ErrorReceived { header, - data: Some(data), + data: Some(payload.freeze()), }); } _ => { diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 9dc6b9fad7..5f21cce4ec 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -3,7 +3,7 @@ //! The juliet protocol supports multi-frame messages, which are subject to addtional rules and //! checks. The resulting state machine is encoded in the [`MultiframeReceiver`] type. -use std::{marker::PhantomData, mem, ops::Deref}; +use std::mem; use bytes::{Buf, BytesMut}; @@ -14,41 +14,12 @@ use crate::{ Outcome::{self, Success}, }, try_outcome, + util::Index, varint::decode_varint32, }; use super::outgoing_message::OutgoingMessage; -/// Bytes offset with a lifetime. -/// -/// Helper type that ensures that offsets that are depending on a buffer are not being invalidated -/// through accidental modification. -struct Index<'a> { - /// The byte offset this `Index` represents. - index: usize, - /// Buffer it is tied to. - buffer: PhantomData<&'a BytesMut>, -} - -impl<'a> Deref for Index<'a> { - type Target = usize; - - fn deref(&self) -> &Self::Target { - &self.index - } -} - -impl<'a> Index<'a> { - /// Creates a new `Index` with offset value `index`, borrowing `buffer`. - fn new(buffer: &'a BytesMut, index: usize) -> Self { - let _ = buffer; - Index { - index, - buffer: PhantomData, - } - } -} - /// The multi-frame message receival state of a single channel, as specified in the RFC. #[derive(Debug, Default)] pub(super) enum MultiframeReceiver { diff --git a/juliet/src/util.rs b/juliet/src/util.rs new file mode 100644 index 0000000000..506174adbb --- /dev/null +++ b/juliet/src/util.rs @@ -0,0 +1,35 @@ +//! Miscellaneous utilities used across multiple modules. + +use std::{marker::PhantomData, ops::Deref}; + +use bytes::BytesMut; + +/// Bytes offset with a lifetime. +/// +/// Helper type that ensures that offsets that are depending on a buffer are not being invalidated +/// through accidental modification. +pub(crate) struct Index<'a> { + /// The byte offset this `Index` represents. + index: usize, + /// Buffer it is tied to. + buffer: PhantomData<&'a BytesMut>, +} + +impl<'a> Deref for Index<'a> { + type Target = usize; + + fn deref(&self) -> &Self::Target { + &self.index + } +} + +impl<'a> Index<'a> { + /// Creates a new `Index` with offset value `index`, borrowing `buffer`. + pub(crate) fn new(buffer: &'a BytesMut, index: usize) -> Self { + let _ = buffer; + Index { + index, + buffer: PhantomData, + } + } +} From 2b3657f7b6a773a0f084f36b51158c390955d521 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sat, 1 Jul 2023 16:25:56 +0200 Subject: [PATCH 492/735] juliet: Give local protocol violation errors when sending message with bad error message payload --- juliet/src/protocol.rs | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 489df45bb5..46f4bb018c 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -247,6 +247,11 @@ pub enum LocalProtocolViolation { /// The given payload exceeds the configured limit. #[error("payload exceeds configured limit")] PayloadExceedsLimit, + /// The given error payload exceeds a single frame. + /// + /// Error payloads may not span multiple frames. Short the error payload or increase frame size. + #[error("error payload would be multi-frame")] + ErrorPayloadIsMultiFrame, } impl JulietProtocol { @@ -456,9 +461,20 @@ impl JulietProtocol { /// # Local protocol violations /// /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel. - pub fn custom_error(&mut self, channel: ChannelId, id: Id, payload: Bytes) -> OutgoingMessage { + pub fn custom_error( + &mut self, + channel: ChannelId, + id: Id, + payload: Bytes, + ) -> Result { let header = Header::new_error(header::ErrorKind::Other, channel, id); - OutgoingMessage::new(header, Some(payload)) + + let msg = OutgoingMessage::new(header, Some(payload)); + if msg.is_multi_frame(self.max_frame_size as usize) { + Err(LocalProtocolViolation::ErrorPayloadIsMultiFrame) + } else { + Ok(msg) + } } /// Processes incoming data from a buffer. @@ -681,6 +697,7 @@ impl JulietProtocol { channel.cancellation_allowance -= 1; // TODO: What to do with partially received multi-frame request? + // TODO: Actually remove from incoming set. return Success(CompletedRead::RequestCancellation { id: header.id() }); } From 30e09cf8a413ebfc76d726503e8681de84bcf7d6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 2 Jul 2023 18:24:17 +0200 Subject: [PATCH 493/735] juliet: Sketch out RPC interface --- juliet/src/lib.rs | 1 + juliet/src/rpc.rs | 175 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 176 insertions(+) create mode 100644 juliet/src/rpc.rs diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 112159d26c..c8142dad2f 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -6,6 +6,7 @@ mod header; pub mod protocol; +pub mod rpc; pub(crate) mod util; pub mod varint; diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs new file mode 100644 index 0000000000..4704070b35 --- /dev/null +++ b/juliet/src/rpc.rs @@ -0,0 +1,175 @@ +//! RPC layer. +//! +//! Typically the outermost layer of the `juliet` stack is the RPC layer, which combines the +//! underlying IO and protocol primites into a convenient, type safe RPC system. + +use std::{ + pin::Pin, + task::{Context, Poll}, + time::Duration, +}; + +use bytes::Bytes; +use futures::Stream; + +use crate::ChannelId; + +/// Creates a new set of RPC client (for making RPC calls) and RPC server (for handling calls). +pub fn make_rpc(transport: T) -> (JulietRpcClient, JulietRpcServer) { + // TODO: Consider allowing for zero-to-many clients to be created. + todo!() +} + +/// Juliet RPC client. +/// +/// The client is used to create new RPC calls. +pub struct JulietRpcClient { + // TODO +} + +/// Juliet RPC Server. +/// +/// The server's sole purpose is to handle incoming RPC calls. +pub struct JulietRpcServer { + // TODO +} + +pub struct JulietRpcRequestBuilder { + // TODO +} + +impl JulietRpcClient { + /// Creates a new RPC request builder. + /// + /// The returned builder can be used to create a single request on the given channel. + fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { + todo!() + } +} + +pub struct IncomingRequest { + // TODO +} + +pub enum RpcServerError { + // TODO +} + +impl Stream for JulietRpcServer { + type Item = Result; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + todo!() + } +} + +pub struct RequestHandle; + +impl JulietRpcRequestBuilder { + /// Sets the payload for the request. + pub fn with_payload(self, payload: Bytes) -> Self { + todo!() + } + + /// Sets the timeout for the request. + pub fn with_timeout(self, timeout: Duration) -> Self { + todo!() + } + + /// Schedules a new request on an outgoing channel. + /// + /// Blocks until space to store it is available. + pub async fn queue_for_sending(self) -> RequestHandle { + todo!() + } + + /// Try to schedule a new request. + /// + /// Fails if local buffer is exhausted. + pub fn try_queue_for_sending(self) -> Result { + todo!() + } +} + +pub enum RequestError { + /// Remote closed due to some error, could not send. + RemoteError, + /// Local timeout. + TimedOut, + /// Remote said "no". + RemoteCancelled, + /// Cancelled locally. + Cancelled, + /// API misuse + Error, +} + +// Note: On drop, `RequestHandle` cancels itself. +impl RequestHandle { + /// Cancels the request, causing it to not be sent if it is still in the queue. + /// + /// No response will be available for the request, any call to `wait_for_finish` will result in an error. + pub fn cancel(self) { + todo!() + } + + /// Forgets the request was made. + /// + /// Any response will be accepted, but discarded. + pub fn forget(self) { + todo!() + } + + /// Waits for the response to come back. + pub async fn wait_for_response(self) -> Result, RequestError> { + todo!() + } + + /// Waits for the response, non-blockingly. + pub fn try_wait_for_response(self) -> Result, RequestError>, Self> { + todo!() + } + + /// Waits for the sending to complete. + pub async fn wait_for_send(&mut self) { + todo!() + } +} + +impl Drop for RequestHandle { + fn drop(&mut self) { + todo!("on drop, cancel request") + } +} + +impl IncomingRequest { + /// Returns a reference to the payload, if any. + pub fn payload(&self) -> &Option { + todo!() + } + + /// Returns a reference to the payload, if any. + /// + /// Typically used in conjunction with [`Option::take()`]. + pub fn payload_mut(&self) -> &mut Option { + todo!() + } + + /// Enqueue a response to be sent out. + pub fn respond(self, payload: Bytes) { + todo!() + } + + /// Cancel the request. + /// + /// This will cause a cancellation to be sent back. + pub fn cancel(self) { + todo!() + } +} + +impl Drop for IncomingRequest { + fn drop(&mut self) { + todo!("send cancel response") + } +} From f40fa12eefa04fff52903e3c406bcf544c4b66ee Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Jul 2023 10:25:58 +0200 Subject: [PATCH 494/735] juliet: Sketch out IO interface --- Cargo.lock | 154 +++++++++++----- Cargo.toml | 7 +- juliet/Cargo.toml | 2 + juliet/src/io.rs | 231 ++++++++++++++++++++++++ juliet/src/lib.rs | 1 + juliet/src/protocol.rs | 11 +- juliet/src/protocol/outgoing_message.rs | 6 +- 7 files changed, 358 insertions(+), 54 deletions(-) create mode 100644 juliet/src/io.rs diff --git a/Cargo.lock b/Cargo.lock index f395fd8eba..cfe5db3d8d 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1796,9 +1796,9 @@ checksum = "fed34cd105917e91daa4da6b3728c47b068749d6a62c59811f06ed2ac71d9da7" [[package]] name = "futures" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "531ac96c6ff5fd7c62263c5e3c67a603af4fcaee2e1a0ae5565ba3a11e69e549" +checksum = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40" dependencies = [ "futures-channel", "futures-core", @@ -1811,9 +1811,9 @@ dependencies = [ [[package]] name = "futures-channel" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "164713a5a0dcc3e7b4b1ed7d3b433cabc18025386f9339346e8daf15963cf7ac" +checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2" dependencies = [ "futures-core", "futures-sink", @@ -1821,15 +1821,15 @@ dependencies = [ [[package]] name = "futures-core" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "86d7a0c1aa76363dac491de0ee99faf6941128376f1cf96f07db7603b7de69dd" +checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c" [[package]] name = "futures-executor" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1997dd9df74cdac935c76252744c1ed5794fac083242ea4fe77ef3ed60ba0f83" +checksum = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0" dependencies = [ "futures-core", "futures-task", @@ -1838,38 +1838,38 @@ dependencies = [ [[package]] name = "futures-io" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "89d422fa3cbe3b40dca574ab087abb5bc98258ea57eea3fd6f1fa7162c778b91" +checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964" [[package]] name = "futures-macro" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3eb14ed937631bd8b8b8977f2c198443447a8355b6e3ca599f38c975e5a963b6" +checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72" dependencies = [ "proc-macro2 1.0.53", "quote 1.0.26", - "syn 1.0.109", + "syn 2.0.8", ] [[package]] name = "futures-sink" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ec93083a4aecafb2a80a885c9de1f0ccae9dbd32c2bb54b0c3a65690e0b8d2f2" +checksum = "f43be4fe21a13b9781a69afa4985b0f6ee0e1afab2c6f454a8cf30e2b2237b6e" [[package]] name = "futures-task" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "fd65540d33b37b16542a0438c12e6aeead10d4ac5d05bd3f805b8f35ab592879" +checksum = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65" [[package]] name = "futures-util" -version = "0.3.27" +version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3ef6b17e481503ec85211fed8f39d1970f128935ca1f814cd32ac4a6842e84ab" +checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533" dependencies = [ "futures-channel", "futures-core", @@ -2485,10 +2485,12 @@ dependencies = [ "array-init", "bytemuck", "bytes", + "futures", "proptest", "proptest-attr-macro", "proptest-derive", "thiserror", + "tokio", ] [[package]] @@ -2525,9 +2527,9 @@ checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67" [[package]] name = "libc" -version = "0.2.140" +version = "0.2.147" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c" +checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3" [[package]] name = "libgit2-sys" @@ -4637,31 +4639,31 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20" [[package]] name = "tokio" -version = "1.26.0" +version = "1.29.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "03201d01c3c27a29c8a5cee5b55a93ddae1ccf6f08f65365c2c918f8c1b76f64" +checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da" dependencies = [ "autocfg", + "backtrace", "bytes", "libc", - "memchr", "mio", "num_cpus", "pin-project-lite", "socket2", "tokio-macros", - "windows-sys 0.45.0", + "windows-sys 0.48.0", ] [[package]] name = "tokio-macros" -version = "1.8.2" +version = "2.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8" +checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e" dependencies = [ "proc-macro2 1.0.53", "quote 1.0.26", - "syn 1.0.109", + "syn 2.0.8", ] [[package]] @@ -5530,13 +5532,13 @@ version = "0.42.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7" dependencies = [ - "windows_aarch64_gnullvm", - "windows_aarch64_msvc", - "windows_i686_gnu", - "windows_i686_msvc", - "windows_x86_64_gnu", - "windows_x86_64_gnullvm", - "windows_x86_64_msvc", + "windows_aarch64_gnullvm 0.42.2", + "windows_aarch64_msvc 0.42.2", + "windows_i686_gnu 0.42.2", + "windows_i686_msvc 0.42.2", + "windows_x86_64_gnu 0.42.2", + "windows_x86_64_gnullvm 0.42.2", + "windows_x86_64_msvc 0.42.2", ] [[package]] @@ -5545,7 +5547,16 @@ version = "0.45.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0" dependencies = [ - "windows-targets", + "windows-targets 0.42.2", +] + +[[package]] +name = "windows-sys" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9" +dependencies = [ + "windows-targets 0.48.1", ] [[package]] @@ -5554,13 +5565,28 @@ version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071" dependencies = [ - "windows_aarch64_gnullvm", - "windows_aarch64_msvc", - "windows_i686_gnu", - "windows_i686_msvc", - "windows_x86_64_gnu", - "windows_x86_64_gnullvm", - "windows_x86_64_msvc", + "windows_aarch64_gnullvm 0.42.2", + "windows_aarch64_msvc 0.42.2", + "windows_i686_gnu 0.42.2", + "windows_i686_msvc 0.42.2", + "windows_x86_64_gnu 0.42.2", + "windows_x86_64_gnullvm 0.42.2", + "windows_x86_64_msvc 0.42.2", +] + +[[package]] +name = "windows-targets" +version = "0.48.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f" +dependencies = [ + "windows_aarch64_gnullvm 0.48.0", + "windows_aarch64_msvc 0.48.0", + "windows_i686_gnu 0.48.0", + "windows_i686_msvc 0.48.0", + "windows_x86_64_gnu 0.48.0", + "windows_x86_64_gnullvm 0.48.0", + "windows_x86_64_msvc 0.48.0", ] [[package]] @@ -5569,42 +5595,84 @@ version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8" +[[package]] +name = "windows_aarch64_gnullvm" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc" + [[package]] name = "windows_aarch64_msvc" version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43" +[[package]] +name = "windows_aarch64_msvc" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3" + [[package]] name = "windows_i686_gnu" version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f" +[[package]] +name = "windows_i686_gnu" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241" + [[package]] name = "windows_i686_msvc" version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060" +[[package]] +name = "windows_i686_msvc" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00" + [[package]] name = "windows_x86_64_gnu" version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36" +[[package]] +name = "windows_x86_64_gnu" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1" + [[package]] name = "windows_x86_64_gnullvm" version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3" +[[package]] +name = "windows_x86_64_gnullvm" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953" + [[package]] name = "windows_x86_64_msvc" version = "0.42.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0" +[[package]] +name = "windows_x86_64_msvc" +version = "0.48.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a" + [[package]] name = "winreg" version = "0.10.1" diff --git a/Cargo.toml b/Cargo.toml index d89d9ec7a3..75fd7e8cae 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -31,11 +31,6 @@ default-members = [ exclude = ["utils/nctl/remotes/casper-client-rs"] -# Include debug symbols in the release build of `casper-engine-tests` so that `simple-transfer` will yield useful -# perf data. -[profile.release.package.casper-engine-tests] -debug = true - [profile.release] codegen-units = 1 lto = true @@ -46,4 +41,4 @@ lto = true [profile.release-with-debug] inherits = "release" -debug = true \ No newline at end of file +debug = true diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index fb47c60b9e..ff75853291 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -8,7 +8,9 @@ authors = [ "Marc Brinkmann " ] array-init = "2.1.0" bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" +futures = "0.3.28" thiserror = "1.0.40" +tokio = { version = "1.29.1", features = ["macros", "io-util", "sync"] } [dev-dependencies] proptest = "1.1.0" diff --git a/juliet/src/io.rs b/juliet/src/io.rs new file mode 100644 index 0000000000..40b83a0c4b --- /dev/null +++ b/juliet/src/io.rs @@ -0,0 +1,231 @@ +//! `juliet` IO layer +//! +//! The IO layer combines a lower-level transport like a TCP Stream with the +//! [`JulietProtocol`](crate::juliet::JulietProtocol) protocol implementation and some memory buffer +//! to provide a working high-level transport for juliet messages. It allows users of this layer to +//! send messages across over multiple channels, without having to worry about frame multiplexing or +//! request limits. +//! +//! The layer is designed to run in its own task, with handles to allow sending messages in, or +//! receiving them as they arrive. + +use std::{ + collections::{HashMap, VecDeque}, + io, +}; + +use bytes::{Buf, BytesMut}; +use thiserror::Error; +use tokio::{ + io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, + sync::mpsc::Receiver, +}; + +use crate::{ + header::Header, + protocol::{CompletedRead, FrameIter, JulietProtocol, OutgoingFrame, OutgoingMessage}, + ChannelId, Outcome, +}; + +struct QueuedRequest { + channel: ChannelId, + message: OutgoingMessage, +} + +/// [`IoCore`] error. +#[derive(Debug, Error)] +pub enum CoreError { + /// Failed to read from underlying reader. + #[error("read failed")] + ReadFailed(#[source] io::Error), + /// Failed to write using underlying writer. + #[error("write failed")] + WriteFailed(#[source] io::Error), +} + +pub struct IoCore { + /// The actual protocol state. + juliet: JulietProtocol, + + /// Underlying transport, reader. + reader: R, + /// Underlying transport, writer. + writer: W, + /// Read buffer for incoming data. + buffer: BytesMut, + + /// The message that is in the process of being sent. + current_message: Option, + /// The frame in the process of being sent. + current_frame: Option, + run_queue: VecDeque<()>, + flagmap: [(); N], + counter: [(); N], + req_store: [HashMap; N], + resp_store: [HashMap; N], + request_input: Receiver, + _confirmation_queue: (), // ? +} + +impl IoCore +where + R: AsyncRead + Unpin, + W: AsyncWrite + Unpin, +{ + pub async fn run(mut self, read_buffer_size: usize) -> Result<(), CoreError> { + let mut bytes_until_next_parse = Header::SIZE; + + loop { + // Note: There is a world in which we find a way to reuse some of the futures instead + // of recreating them with every loop iteration, but I was not able to convince + // the borrow checker yet. + + tokio::select! { + biased; // We do not need the bias, but we want to avoid randomness overhead. + + // New requests coming in from clients: + new_request = self.request_input.recv() => { + drop(new_request); // TODO: Sort new request into queues. + } + + // Writing outgoing data: + write_result = self.writer.write_all_buf(self.current_frame.as_mut().unwrap()) + , if self.current_frame.is_some() => { + write_result.map_err(CoreError::WriteFailed)?; + + self.advance_write(); + } + + // Reading incoming data: + read_result = read_atleast_bytesmut(&mut self.reader, &mut self.buffer, bytes_until_next_parse) => { + let bytes_read = read_result.map_err(CoreError::ReadFailed)?; + + bytes_until_next_parse = bytes_until_next_parse.saturating_sub(bytes_read); + + if bytes_until_next_parse == 0 { + match self.juliet.process_incoming(&mut self.buffer) { + Outcome::Incomplete(n) => { + // Simply reset how many bytes we need until the next parse. + bytes_until_next_parse = n.get() as usize; + }, + Outcome::Fatal(err) => { + self.handle_fatal_read_err(err) + }, + Outcome::Success(successful_read) => { + self.handle_completed_read(successful_read) + }, + } + } + + if bytes_read == 0 { + // Remote peer hung up. + return Ok(()); + } + } + } + } + } + + fn handle_completed_read(&mut self, read: CompletedRead) { + match read { + CompletedRead::ErrorReceived { header, data } => todo!(), + CompletedRead::NewRequest { id, payload } => todo!(), + CompletedRead::ReceivedResponse { id, payload } => todo!(), + CompletedRead::RequestCancellation { id } => todo!(), + CompletedRead::ResponseCancellation { id } => todo!(), + } + } + + fn handle_fatal_read_err(&mut self, err: OutgoingMessage) { + todo!() + } + + fn next_frame(&mut self, max_frame_size: usize) { + // If we still have frame data, return. + if self + .current_frame + .as_ref() + .map(Buf::has_remaining) + .unwrap_or(false) + { + return; + } else { + // Reset frame to be sure. + self.current_frame = None; + } + + // At this point, we need to fetch another frame. This is only possible if we have a message + // to pull frames from. + loop { + if let Some(ref mut current_message) = self.current_message { + match current_message.next(self.juliet.max_frame_size()) { + Some(frame) => { + self.current_frame = Some(frame); + // Successful, current message had another frame. + } + None => { + // There is no additional frame from the current message. + self.current_message = None; + } + } + + // We neither have a message nor a frame, time to look into the queue. + let next_item = self.run_queue.pop_back(); + } + } + } + + fn advance_write(&mut self) { + // Discard frame if finished. + if let Some(ref frame) = self.current_frame { + if frame.remaining() == 0 { + self.current_frame = None; + } else { + // We still have a frame to finish. + return; + } + } + + if let Some(ref message) = self.current_message {} + + // Discard message if finished. + + // TODO: Pop item from queue. + } +} + +/// Read bytes into a buffer. +/// +/// Similar to [`AsyncReadExt::read_buf`], except it performs multiple read calls until at least +/// `target` bytes have been read. +/// +/// Will automatically retry if an [`io::ErrorKind::Interrupted`] is returned. +/// +/// # Cancellation safety +/// +/// This function is cancellation safe in the same way that [`AsyncReadExt::read_buf`] is. +async fn read_atleast_bytesmut<'a, R>( + reader: &'a mut R, + buf: &mut BytesMut, + target: usize, +) -> io::Result +where + R: AsyncReadExt + Sized + Unpin, +{ + let mut bytes_read = 0; + buf.reserve(target); + + while bytes_read < target { + match reader.read_buf(buf).await { + Ok(n) => bytes_read += n, + Err(err) => { + if matches!(err.kind(), io::ErrorKind::Interrupted) { + continue; + } + return Err(err); + } + } + } + + Ok(bytes_read) +} diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index c8142dad2f..1e71d79d26 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -5,6 +5,7 @@ //! secure, simple, easy to verify/review implementation that is still reasonably performant. mod header; +pub mod io; pub mod protocol; pub mod rpc; pub(crate) mod util; diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 46f4bb018c..b7a9120ba5 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -16,7 +16,8 @@ use std::{collections::HashSet, num::NonZeroU32}; use bytes::{Buf, Bytes, BytesMut}; use thiserror::Error; -use self::{multiframe::MultiframeReceiver, outgoing_message::OutgoingMessage}; +use self::multiframe::MultiframeReceiver; +pub use self::outgoing_message::{FrameIter, OutgoingFrame, OutgoingMessage}; use crate::{ header::{self, ErrorKind, Header, Kind}, try_outcome, @@ -298,6 +299,12 @@ impl JulietProtocol { } } + /// Returns the configured maximum frame size. + #[inline(always)] + pub fn max_frame_size(&self) -> u32 { + self.max_frame_size + } + /// Returns whether or not it is permissible to send another request on given channel. #[inline] pub fn allowed_to_send_request( @@ -498,7 +505,7 @@ impl JulietProtocol { /// thus eventually freeing the data if not held elsewhere. pub fn process_incoming( &mut self, - mut buffer: BytesMut, + mut buffer: &mut BytesMut, ) -> Outcome { // First, attempt to complete a frame. loop { diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 4f147235e0..96cdb35247 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -122,7 +122,7 @@ impl FrameIter { /// While different [`OutgoingMessage`]s can have their send order mixed or interspersed, a /// caller MUST NOT send [`OutgoingFrame`]s in any order but the one produced by this method. /// In other words, reorder messages, but not frames within a message. - pub fn next(&mut self, max_frame_size: usize) -> Option { + pub fn next(&mut self, max_frame_size: u32) -> Option { if let Some(ref payload) = self.msg.payload { let payload_remaining = payload.len() - self.bytes_processed; @@ -141,7 +141,7 @@ impl FrameIter { Preamble::new(self.msg.header, Varint32::SENTINEL) }; - let frame_capacity = max_frame_size - preamble.len(); + let frame_capacity = max_frame_size as usize - preamble.len(); let frame_payload_len = frame_capacity.min(payload_remaining); let range = self.bytes_processed..(self.bytes_processed + frame_payload_len); @@ -164,7 +164,7 @@ impl FrameIter { /// Returns a [`std::iter::Iterator`] implementing frame iterator. #[inline] - pub fn into_iter(mut self, max_frame_size: usize) -> impl Iterator { + pub fn into_iter(mut self, max_frame_size: u32) -> impl Iterator { iter::from_fn(move || self.next(max_frame_size)) } } From 5441381b5d24af8fe75bc4bcd1ad0526d861b2bb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Jul 2023 13:44:29 +0200 Subject: [PATCH 495/735] juliet: Finish most of the core for IO --- juliet/src/header.rs | 25 ++ juliet/src/io.rs | 322 +++++++++++++++++++----- juliet/src/protocol/outgoing_message.rs | 60 +++-- 3 files changed, 325 insertions(+), 82 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index cc0c93cb72..a62b41d4ce 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -191,6 +191,19 @@ impl Header { self.kind_byte() & Self::KIND_ERR_BIT == Self::KIND_ERR_BIT } + /// Returns whether or not the given header is a request header. + #[inline] + pub fn is_request(self) -> bool { + if !self.is_error() { + match self.kind() { + Kind::Request | Kind::RequestPl => true, + _ => false, + } + } else { + false + } + } + /// Returns the error kind. /// /// # Panics @@ -320,6 +333,18 @@ mod tests { } else { drop(header.kind()); } + + // Verify `is_request` does not panic. + drop(header.is_request()); + + // Ensure `is_request` returns the correct value. + if !header.is_error() { + if matches!(header.kind(), Kind::Request) || matches!(header.kind(), Kind::RequestPl) { + assert!(header.is_request()); + } else { + assert!(!header.is_request()); + } + } } #[proptest] diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 40b83a0c4b..8d302f1126 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -10,26 +10,48 @@ //! receiving them as they arrive. use std::{ - collections::{HashMap, VecDeque}, + collections::VecDeque, io, + sync::{ + atomic::{AtomicUsize, Ordering}, + Arc, Mutex, + }, }; -use bytes::{Buf, BytesMut}; +use bytes::{Buf, Bytes, BytesMut}; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, - sync::mpsc::Receiver, + sync::Notify, }; use crate::{ header::Header, - protocol::{CompletedRead, FrameIter, JulietProtocol, OutgoingFrame, OutgoingMessage}, - ChannelId, Outcome, + protocol::{ + CompletedRead, FrameIter, JulietProtocol, LocalProtocolViolation, OutgoingFrame, + OutgoingMessage, + }, + ChannelId, Id, Outcome, }; -struct QueuedRequest { - channel: ChannelId, - message: OutgoingMessage, +#[derive(Debug)] +enum QueuedItem { + Request { payload: Option }, + Response { id: Id, payload: Option }, + RequestCancellation { id: Id }, + ResponseCancellation { id: Id }, + Error { id: Id, payload: Bytes }, +} + +impl QueuedItem { + #[inline(always)] + fn is_request(&self) -> bool { + matches!(self, QueuedItem::Request { .. }) + } + + fn is_multi_frame(&self, max_frame_size: u32) -> bool { + todo!() + } } /// [`IoCore`] error. @@ -41,6 +63,9 @@ pub enum CoreError { /// Failed to write using underlying writer. #[error("write failed")] WriteFailed(#[source] io::Error), + #[error("local protocol violation")] + /// Local protocol violation - caller violated the crate's API. + LocalProtocolViolation(#[from] LocalProtocolViolation), } pub struct IoCore { @@ -54,17 +79,24 @@ pub struct IoCore { /// Read buffer for incoming data. buffer: BytesMut, - /// The message that is in the process of being sent. - current_message: Option, - /// The frame in the process of being sent. + /// The frame in the process of being sent, maybe be partially transferred. current_frame: Option, - run_queue: VecDeque<()>, - flagmap: [(); N], - counter: [(); N], - req_store: [HashMap; N], - resp_store: [HashMap; N], - request_input: Receiver, - _confirmation_queue: (), // ? + /// The header of the current multi-frame transfer. + active_multi_frame: [Option
; N], + /// Frames that can be sent next. + ready_queue: VecDeque, + + /// Shared data across handles and core. + shared: Arc>, +} + +struct IoShared { + /// Messages queued that are not yet ready to send. + wait_queue: [Mutex>; N], + /// Number of requests already buffered per channel. + requests_buffered: [AtomicUsize; N], + /// Maximum allowed number of requests to buffer per channel. + requests_limit: [usize; N], } impl IoCore @@ -75,6 +107,8 @@ where pub async fn run(mut self, read_buffer_size: usize) -> Result<(), CoreError> { let mut bytes_until_next_parse = Header::SIZE; + let notified = self.shared.wait_queue_updated.notified(); + loop { // Note: There is a world in which we find a way to reuse some of the futures instead // of recreating them with every loop iteration, but I was not able to convince @@ -83,17 +117,13 @@ where tokio::select! { biased; // We do not need the bias, but we want to avoid randomness overhead. - // New requests coming in from clients: - new_request = self.request_input.recv() => { - drop(new_request); // TODO: Sort new request into queues. - } - // Writing outgoing data: write_result = self.writer.write_all_buf(self.current_frame.as_mut().unwrap()) , if self.current_frame.is_some() => { write_result.map_err(CoreError::WriteFailed)?; - self.advance_write(); + // We finished writing a frame, so prepare the next. + self.current_frame = self.ready_next_frame()?; } // Reading incoming data: @@ -140,57 +170,222 @@ where todo!() } - fn next_frame(&mut self, max_frame_size: usize) { - // If we still have frame data, return. - if self - .current_frame - .as_ref() - .map(Buf::has_remaining) - .unwrap_or(false) - { - return; + /// Clears a potentially finished frame and returns the best next frame to send. + /// + /// Returns `None` if no frames are ready to be sent. Note that there may be frames waiting + /// that cannot be sent due them being multi-frame messages when there already is a multi-frame + /// message in progress, or request limits being hit. + fn ready_next_frame(&mut self) -> Result, LocalProtocolViolation> { + // If we still have frame data, return it or take something from the ready queue. + if let Some(current_frame) = self.current_frame.take() { + if current_frame.has_remaining() { + // Current frame is not done. This should usually not happen, but we can give a + // correct answer regardless. + return Ok(Some(current_frame)); + } + } + + debug_assert!(self.current_frame.is_none()); // Guaranteed as this point. + + // Try to fetch a frame from the run queue. If there is nothing, we are stuck for now. + let (frame, more) = match self.ready_queue.pop_front() { + Some(item) => item, + None => return Ok(None), + } + // Queue is empty, there is no next frame. + .next_owned(self.juliet.max_frame_size()); + + // If there are more frames after this one, schedule them again. + if let Some(next_frame_iter) = more { + self.ready_queue.push_back(next_frame_iter); } else { - // Reset frame to be sure. - self.current_frame = None; + // No additional frames, check if we are about to finish a multi-frame transfer. + let about_to_finish = frame.header(); + if let Some(ref active_multi) = + self.active_multi_frame[about_to_finish.channel().get() as usize] + { + if about_to_finish == *active_multi { + // Once the scheduled frame is processed, we will finished the multi-frame + // transfer, so we can allow for the next multi-frame transfer to be scheduled. + self.active_multi_frame[about_to_finish.channel().get() as usize] = None; + + // There is a chance another multi-frame messages became ready now. + self.process_wait_queue(about_to_finish.channel()); + } + } } - // At this point, we need to fetch another frame. This is only possible if we have a message - // to pull frames from. - loop { - if let Some(ref mut current_message) = self.current_message { - match current_message.next(self.juliet.max_frame_size()) { - Some(frame) => { - self.current_frame = Some(frame); - // Successful, current message had another frame. + Ok(Some(frame)) + } + + /// Process the wait queue, moving messages that are ready to be sent to the ready queue. + fn process_wait_queue(&mut self, channel: ChannelId) -> Result<(), LocalProtocolViolation> { + let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; + let mut wait_queue = self.shared.wait_queue[channel.get() as usize] + .lock() + .expect("lock poisoned"); + for _ in 0..(wait_queue.len()) { + // Note: We do not use `drain` here, since we want to modify in-place. `retain` is also + // not used, since it does not allow taking out items by-value. An alternative + // might be sorting the list and splitting off the candidates instead. + let item = wait_queue + .pop_front() + .expect("did not expect to run out of items"); + + if item_is_ready(channel, &item, &self.juliet, active_multi_frame) { + match item { + QueuedItem::Request { payload } => { + let msg = self.juliet.create_request(channel, payload)?; + self.ready_queue.push_back(msg.frames()); + } + QueuedItem::Response { id, payload } => { + if let Some(msg) = self.juliet.create_response(channel, id, payload)? { + self.ready_queue.push_back(msg.frames()); + } + } + QueuedItem::RequestCancellation { id } => { + if let Some(msg) = self.juliet.cancel_request(channel, id)? { + self.ready_queue.push_back(msg.frames()); + } + } + QueuedItem::ResponseCancellation { id } => { + if let Some(msg) = self.juliet.cancel_response(channel, id)? { + self.ready_queue.push_back(msg.frames()); + } } - None => { - // There is no additional frame from the current message. - self.current_message = None; + QueuedItem::Error { id, payload } => { + let msg = self.juliet.custom_error(channel, id, payload)?; + // Errors go into the front. + self.ready_queue.push_front(msg.frames()); } } - - // We neither have a message nor a frame, time to look into the queue. - let next_item = self.run_queue.pop_back(); + } else { + wait_queue.push_back(item); } } + + Ok(()) + } +} + +fn item_is_ready( + channel: ChannelId, + item: &QueuedItem, + juliet: &JulietProtocol, + active_multi_frame: &Option
, +) -> bool { + // Check if we cannot schedule due to the message exceeding the request limit. + if item.is_request() { + if !juliet + .allowed_to_send_request(channel) + .expect("should not be called with invalid channel") + { + return false; + } + } + + // Check if we cannot schedule due to the message being multi-frame and there being a + // multi-frame send in progress: + if active_multi_frame.is_some() { + if item.is_multi_frame(juliet.max_frame_size()) { + return false; + } } - fn advance_write(&mut self) { - // Discard frame if finished. - if let Some(ref frame) = self.current_frame { - if frame.remaining() == 0 { - self.current_frame = None; + // Otherwise, this should be a legitimate add to the run queue. + true +} + +struct IoHandle { + shared: Arc>, +} + +impl IoHandle { + fn enqueue_request( + &self, + channel: ChannelId, + payload: Option, + ) -> Result>, LocalProtocolViolation> { + bounds_check::(channel)?; + + let count = &self.shared.requests_buffered[channel.get() as usize]; + let limit = self.shared.requests_limit[channel.get() as usize]; + + // TODO: relax ordering from `SeqCst`. + match count.fetch_update(Ordering::SeqCst, Ordering::SeqCst, |current| { + if current < limit { + Some(current + 1) } else { - // We still have a frame to finish. - return; + None + } + }) { + Ok(_prev) => { + // We successfully increment the count. + let mut wait_queue = self.shared.wait_queue[channel.get() as usize] + .lock() + .expect("lock poisoned"); + wait_queue.push_back(QueuedItem::Request { payload }); + Ok(None) } + Err(_prev) => Ok(Some(payload)), } + } + + fn enqueue_response( + &self, + channel: ChannelId, + id: Id, + payload: Option, + ) -> Result<(), LocalProtocolViolation> { + bounds_check::(channel)?; + + let mut wait_queue = self.shared.wait_queue[channel.get() as usize] + .lock() + .expect("lock poisoned"); + wait_queue.push_back(QueuedItem::Response { id, payload }); + + Ok(()) + } + + fn enqueue_request_cancellation( + &self, + channel: ChannelId, + id: Id, + ) -> Result<(), LocalProtocolViolation> { + bounds_check::(channel)?; + + let mut wait_queue = self.shared.wait_queue[channel.get() as usize] + .lock() + .expect("lock poisoned"); + wait_queue.push_back(QueuedItem::RequestCancellation { id }); + Ok(()) + } - if let Some(ref message) = self.current_message {} + fn enqueue_response_cancellation( + &self, + channel: ChannelId, + id: Id, + ) -> Result<(), LocalProtocolViolation> { + bounds_check::(channel)?; - // Discard message if finished. + let mut wait_queue = self.shared.wait_queue[channel.get() as usize] + .lock() + .expect("lock poisoned"); + wait_queue.push_back(QueuedItem::ResponseCancellation { id }); + Ok(()) + } - // TODO: Pop item from queue. + fn enqueue_error( + &self, + channel: ChannelId, + id: Id, + payload: Bytes, + ) -> Result<(), LocalProtocolViolation> { + let mut wait_queue = self.shared.wait_queue[channel.get() as usize] + .lock() + .expect("lock poisoned"); + wait_queue.push_back(QueuedItem::Error { id, payload }); + Ok(()) } } @@ -229,3 +424,12 @@ where Ok(bytes_read) } + +#[inline(always)] +fn bounds_check(channel: ChannelId) -> Result<(), LocalProtocolViolation> { + if channel.get() as usize >= N { + Err(LocalProtocolViolation::InvalidChannel(channel)) + } else { + Ok(()) + } +} diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 96cdb35247..3d147ef87a 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -48,14 +48,20 @@ impl OutgoingMessage { } } - #[inline(always)] /// Creates an iterator over all frames in the message. + #[inline(always)] pub fn frames(self) -> FrameIter { FrameIter { msg: self, bytes_processed: 0, } } + + /// Returns the outgoing message's header. + #[inline(always)] + pub fn header(&self) -> Header { + self.header + } } /// Combination of header and potential frame payload length. @@ -89,10 +95,15 @@ impl Preamble { } /// Returns the length of the preamble when encoded as as a bytestring. - #[inline] - fn len(&self) -> usize { + #[inline(always)] + fn len(self) -> usize { Header::SIZE + self.payload_length.len() } + + #[inline(always)] + fn header(self) -> Header { + self.header + } } impl AsRef<[u8]> for Preamble { @@ -117,18 +128,18 @@ pub struct FrameIter { impl FrameIter { /// Returns the next frame to send. /// + /// Will return `Some(self)` is there are additional frames to send, `None` otherwise. + /// /// # Note /// /// While different [`OutgoingMessage`]s can have their send order mixed or interspersed, a /// caller MUST NOT send [`OutgoingFrame`]s in any order but the one produced by this method. /// In other words, reorder messages, but not frames within a message. - pub fn next(&mut self, max_frame_size: u32) -> Option { + pub fn next_owned(mut self, max_frame_size: u32) -> (OutgoingFrame, Option) { if let Some(ref payload) = self.msg.payload { - let payload_remaining = payload.len() - self.bytes_processed; + let mut payload_remaining = payload.len() - self.bytes_processed; - if payload_remaining == 0 { - return None; - } + debug_assert!(payload_remaining > 0); let length_prefix = if self.bytes_processed == 0 { Varint32::encode(payload_remaining as u32) @@ -148,25 +159,22 @@ impl FrameIter { let frame_payload = payload.slice(range); self.bytes_processed += frame_payload_len; - Some(OutgoingFrame::new_with_payload(preamble, frame_payload)) - } else { - if self.bytes_processed == 0 { - self.bytes_processed = usize::MAX; - return Some(OutgoingFrame::new(Preamble::new( - self.msg.header, - Varint32::SENTINEL, - ))); + // Update payload remaining, now that an additional frame has been produced. + payload_remaining = payload.len() - self.bytes_processed; + + let frame = OutgoingFrame::new_with_payload(preamble, frame_payload); + if payload_remaining > 0 { + (frame, Some(self)) } else { - return None; + (frame, None) } + } else { + ( + OutgoingFrame::new(Preamble::new(self.msg.header, Varint32::SENTINEL)), + None, + ) } } - - /// Returns a [`std::iter::Iterator`] implementing frame iterator. - #[inline] - pub fn into_iter(mut self, max_frame_size: u32) -> impl Iterator { - iter::from_fn(move || self.next(max_frame_size)) - } } /// A single frame to be sent. @@ -219,6 +227,12 @@ impl OutgoingFrame { OutgoingFrame(Cursor::new(preamble).chain(payload)) } + + /// Returns the outgoing frame's header. + #[inline] + pub fn header(&self) -> Header { + self.0.first_ref().get_ref().header() + } } impl Buf for OutgoingFrame { From 3bf4de589460c44d0a21a155989db62a549ef9db Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Jul 2023 14:26:58 +0200 Subject: [PATCH 496/735] juliet: Process `wait_queue` only when new things have been added --- juliet/src/io.rs | 152 +++++++++++++++++++++++++++++++++-------------- 1 file changed, 106 insertions(+), 46 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 8d302f1126..8e056b4db2 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -10,11 +10,11 @@ //! receiving them as they arrive. use std::{ - collections::VecDeque, + collections::{HashSet, VecDeque}, io, sync::{ atomic::{AtomicUsize, Ordering}, - Arc, Mutex, + Arc, }, }; @@ -22,7 +22,7 @@ use bytes::{Buf, Bytes, BytesMut}; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, - sync::Notify, + sync::mpsc::{error::TryRecvError, error::TrySendError, Receiver, Sender}, }; use crate::{ @@ -52,6 +52,16 @@ impl QueuedItem { fn is_multi_frame(&self, max_frame_size: u32) -> bool { todo!() } + + fn into_payload(self) -> Option { + match self { + QueuedItem::Request { payload } => payload, + QueuedItem::Response { payload, .. } => payload, + QueuedItem::RequestCancellation { .. } => None, + QueuedItem::ResponseCancellation { .. } => None, + QueuedItem::Error { payload, .. } => Some(payload), + } + } } /// [`IoCore`] error. @@ -85,14 +95,16 @@ pub struct IoCore { active_multi_frame: [Option
; N], /// Frames that can be sent next. ready_queue: VecDeque, + /// Messages queued that are not yet ready to send. + wait_queue: [VecDeque; N], + /// Receiver for new items to send. + receiver: Receiver<(ChannelId, QueuedItem)>, /// Shared data across handles and core. shared: Arc>, } struct IoShared { - /// Messages queued that are not yet ready to send. - wait_queue: [Mutex>; N], /// Number of requests already buffered per channel. requests_buffered: [AtomicUsize; N], /// Maximum allowed number of requests to buffer per channel. @@ -107,8 +119,6 @@ where pub async fn run(mut self, read_buffer_size: usize) -> Result<(), CoreError> { let mut bytes_until_next_parse = Header::SIZE; - let notified = self.shared.wait_queue_updated.notified(); - loop { // Note: There is a world in which we find a way to reuse some of the futures instead // of recreating them with every loop iteration, but I was not able to convince @@ -152,6 +162,45 @@ where return Ok(()); } } + + incoming = self.receiver.recv() => { + let mut modified_channels = HashSet::new(); + + let shutdown = match incoming { + Some((channel, item)) => { + modified_channels.insert(channel); + self.wait_queue[channel.get() as usize].push_back(item); + + + // Loop in case there are more items, to avoid processing the wait queue + // too often. + loop { + match self.receiver.try_recv() { + Ok((channel, item)) => { + modified_channels.insert(channel); + self.wait_queue[channel.get() as usize].push_back(item); + } + Err(TryRecvError::Empty) => { + break false; + } + Err(TryRecvError::Disconnected) => { + break true; + } + } + } + }, + None => { true } + }; + + if shutdown { + todo!("handle shutdown"); + } else { + // Only process wait queue after having added all messages. + for channel in modified_channels { + self.process_wait_queue(channel)?; + } + } + } } } } @@ -221,9 +270,7 @@ where /// Process the wait queue, moving messages that are ready to be sent to the ready queue. fn process_wait_queue(&mut self, channel: ChannelId) -> Result<(), LocalProtocolViolation> { let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; - let mut wait_queue = self.shared.wait_queue[channel.get() as usize] - .lock() - .expect("lock poisoned"); + let wait_queue = &mut self.wait_queue[channel.get() as usize]; for _ in 0..(wait_queue.len()) { // Note: We do not use `drain` here, since we want to modify in-place. `retain` is also // not used, since it does not allow taking out items by-value. An alternative @@ -298,6 +345,34 @@ fn item_is_ready( struct IoHandle { shared: Arc>, + /// Sender for queue items. + sender: Sender<(ChannelId, QueuedItem)>, +} + +#[derive(Debug, Error)] +enum EnqueueError { + /// The IO core was shut down, there is no connection anymore to send through. + #[error("IO closed")] + Closed(Option), + /// The request limit was hit, try again. + #[error("request limit hit")] + RequestLimitHit(Option), + /// API violation. + #[error("local protocol violation during enqueueing")] + LocalProtocolViolation(#[from] LocalProtocolViolation), +} + +impl EnqueueError { + fn from_failed_send(err: TrySendError<(ChannelId, QueuedItem)>) -> Self { + match err { + // Note: The `Full` state should never happen unless our queue sizing is incorrect, we + // sweep this under the rug here. + TrySendError::Full((_channel, item)) => { + EnqueueError::RequestLimitHit(item.into_payload()) + } + TrySendError::Closed((_channel, item)) => EnqueueError::Closed(item.into_payload()), + } + } } impl IoHandle { @@ -305,7 +380,7 @@ impl IoHandle { &self, channel: ChannelId, payload: Option, - ) -> Result>, LocalProtocolViolation> { + ) -> Result<(), EnqueueError> { bounds_check::(channel)?; let count = &self.shared.requests_buffered[channel.get() as usize]; @@ -321,13 +396,11 @@ impl IoHandle { }) { Ok(_prev) => { // We successfully increment the count. - let mut wait_queue = self.shared.wait_queue[channel.get() as usize] - .lock() - .expect("lock poisoned"); - wait_queue.push_back(QueuedItem::Request { payload }); - Ok(None) + self.sender + .try_send((channel, QueuedItem::Request { payload })) + .map_err(EnqueueError::from_failed_send) } - Err(_prev) => Ok(Some(payload)), + Err(_prev) => Err(EnqueueError::RequestLimitHit(payload)), } } @@ -336,43 +409,32 @@ impl IoHandle { channel: ChannelId, id: Id, payload: Option, - ) -> Result<(), LocalProtocolViolation> { + ) -> Result<(), EnqueueError> { bounds_check::(channel)?; - let mut wait_queue = self.shared.wait_queue[channel.get() as usize] - .lock() - .expect("lock poisoned"); - wait_queue.push_back(QueuedItem::Response { id, payload }); - - Ok(()) + self.sender + .try_send((channel, QueuedItem::Response { id, payload })) + .map_err(EnqueueError::from_failed_send) } - fn enqueue_request_cancellation( - &self, - channel: ChannelId, - id: Id, - ) -> Result<(), LocalProtocolViolation> { + fn enqueue_request_cancellation(&self, channel: ChannelId, id: Id) -> Result<(), EnqueueError> { bounds_check::(channel)?; - let mut wait_queue = self.shared.wait_queue[channel.get() as usize] - .lock() - .expect("lock poisoned"); - wait_queue.push_back(QueuedItem::RequestCancellation { id }); - Ok(()) + self.sender + .try_send((channel, QueuedItem::RequestCancellation { id })) + .map_err(EnqueueError::from_failed_send) } fn enqueue_response_cancellation( &self, channel: ChannelId, id: Id, - ) -> Result<(), LocalProtocolViolation> { + ) -> Result<(), EnqueueError> { bounds_check::(channel)?; - let mut wait_queue = self.shared.wait_queue[channel.get() as usize] - .lock() - .expect("lock poisoned"); - wait_queue.push_back(QueuedItem::ResponseCancellation { id }); - Ok(()) + self.sender + .try_send((channel, QueuedItem::ResponseCancellation { id })) + .map_err(EnqueueError::from_failed_send) } fn enqueue_error( @@ -380,12 +442,10 @@ impl IoHandle { channel: ChannelId, id: Id, payload: Bytes, - ) -> Result<(), LocalProtocolViolation> { - let mut wait_queue = self.shared.wait_queue[channel.get() as usize] - .lock() - .expect("lock poisoned"); - wait_queue.push_back(QueuedItem::Error { id, payload }); - Ok(()) + ) -> Result<(), EnqueueError> { + self.sender + .try_send((channel, QueuedItem::Error { id, payload })) + .map_err(EnqueueError::from_failed_send) } } From 97e1167e403023bf473335c70003658966998170 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Jul 2023 14:33:51 +0200 Subject: [PATCH 497/735] juliet: Mark `read_buffer_size` redundant, the underlying state machine will never need to read more than a single frame at once --- juliet/src/io.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 8e056b4db2..e04ceea8f1 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -116,7 +116,7 @@ where R: AsyncRead + Unpin, W: AsyncWrite + Unpin, { - pub async fn run(mut self, read_buffer_size: usize) -> Result<(), CoreError> { + pub async fn run(mut self) -> Result<(), CoreError> { let mut bytes_until_next_parse = Header::SIZE; loop { From 9ac763e6c8033dc1058c7710904c89132b6b44e8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Jul 2023 16:27:13 +0200 Subject: [PATCH 498/735] juliet: Complete event structure for core IO loop --- juliet/src/io.rs | 117 ++++++++++++++++++++++++++--------------- juliet/src/protocol.rs | 1 + 2 files changed, 77 insertions(+), 41 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index e04ceea8f1..a65b7e8622 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -12,13 +12,16 @@ use std::{ collections::{HashSet, VecDeque}, io, + pin::Pin, sync::{ atomic::{AtomicUsize, Ordering}, Arc, }, + task::{Context, Poll}, }; use bytes::{Buf, Bytes, BytesMut}; +use futures::Stream; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, @@ -73,6 +76,8 @@ pub enum CoreError { /// Failed to write using underlying writer. #[error("write failed")] WriteFailed(#[source] io::Error), + #[error("error sent to peer")] + ErrorSent(OutgoingFrame), #[error("local protocol violation")] /// Local protocol violation - caller violated the crate's API. LocalProtocolViolation(#[from] LocalProtocolViolation), @@ -88,6 +93,8 @@ pub struct IoCore { writer: W, /// Read buffer for incoming data. buffer: BytesMut, + /// How many more bytes are required until the next par + bytes_until_next_parse: usize, /// The frame in the process of being sent, maybe be partially transferred. current_frame: Option, @@ -111,18 +118,43 @@ struct IoShared { requests_limit: [usize; N], } +#[derive(Debug)] +pub enum IoEvent { + CompletedRead(CompletedRead), + RemoteClosed, + LocalShutdown, +} + +impl IoEvent { + #[inline(always)] + fn should_shutdown(&self) -> bool { + match self { + IoEvent::CompletedRead(_) => false, + IoEvent::RemoteClosed => true, + IoEvent::LocalShutdown => true, + } + } +} + impl IoCore where R: AsyncRead + Unpin, W: AsyncWrite + Unpin, { - pub async fn run(mut self) -> Result<(), CoreError> { - let mut bytes_until_next_parse = Header::SIZE; - + pub async fn next_event(&mut self) -> Result { loop { - // Note: There is a world in which we find a way to reuse some of the futures instead - // of recreating them with every loop iteration, but I was not able to convince - // the borrow checker yet. + if self.bytes_until_next_parse == 0 { + match self.juliet.process_incoming(&mut self.buffer) { + Outcome::Incomplete(n) => { + // Simply reset how many bytes we need until the next parse. + self.bytes_until_next_parse = n.get() as usize; + } + Outcome::Fatal(err) => self.handle_fatal_read_err(err), + Outcome::Success(successful_read) => { + return self.handle_completed_read(successful_read); + } + } + } tokio::select! { biased; // We do not need the bias, but we want to avoid randomness overhead. @@ -132,35 +164,31 @@ where , if self.current_frame.is_some() => { write_result.map_err(CoreError::WriteFailed)?; - // We finished writing a frame, so prepare the next. + let frame_sent = self.current_frame.take().unwrap(); + + if frame_sent.header().is_error() { + // We finished sending an error frame, time to exit. + return Err(CoreError::ErrorSent(frame_sent)); + } + + // Prepare the following frame, if any. self.current_frame = self.ready_next_frame()?; } // Reading incoming data: - read_result = read_atleast_bytesmut(&mut self.reader, &mut self.buffer, bytes_until_next_parse) => { + read_result = read_atleast_bytesmut(&mut self.reader, &mut self.buffer, self.bytes_until_next_parse) => { + // Our read function will not return before `bytes_until_next_parse` has + // completed. let bytes_read = read_result.map_err(CoreError::ReadFailed)?; - bytes_until_next_parse = bytes_until_next_parse.saturating_sub(bytes_read); - - if bytes_until_next_parse == 0 { - match self.juliet.process_incoming(&mut self.buffer) { - Outcome::Incomplete(n) => { - // Simply reset how many bytes we need until the next parse. - bytes_until_next_parse = n.get() as usize; - }, - Outcome::Fatal(err) => { - self.handle_fatal_read_err(err) - }, - Outcome::Success(successful_read) => { - self.handle_completed_read(successful_read) - }, - } - } - if bytes_read == 0 { // Remote peer hung up. - return Ok(()); + return Ok(IoEvent::RemoteClosed); } + + self.bytes_until_next_parse = self.bytes_until_next_parse.saturating_sub(bytes_read); + + // Fall through to start of loop, which parses data read. } incoming = self.receiver.recv() => { @@ -171,7 +199,6 @@ where modified_channels.insert(channel); self.wait_queue[channel.get() as usize].push_back(item); - // Loop in case there are more items, to avoid processing the wait queue // too often. loop { @@ -193,7 +220,7 @@ where }; if shutdown { - todo!("handle shutdown"); + return Ok(IoEvent::LocalShutdown); } else { // Only process wait queue after having added all messages. for channel in modified_channels { @@ -205,9 +232,12 @@ where } } - fn handle_completed_read(&mut self, read: CompletedRead) { + fn handle_completed_read(&mut self, read: CompletedRead) -> Result { match read { - CompletedRead::ErrorReceived { header, data } => todo!(), + CompletedRead::ErrorReceived { header, data } => { + // We've received an error, thus we should shut down the connection immediately. + todo!() + } CompletedRead::NewRequest { id, payload } => todo!(), CompletedRead::ReceivedResponse { id, payload } => todo!(), CompletedRead::RequestCancellation { id } => todo!(), @@ -225,16 +255,7 @@ where /// that cannot be sent due them being multi-frame messages when there already is a multi-frame /// message in progress, or request limits being hit. fn ready_next_frame(&mut self) -> Result, LocalProtocolViolation> { - // If we still have frame data, return it or take something from the ready queue. - if let Some(current_frame) = self.current_frame.take() { - if current_frame.has_remaining() { - // Current frame is not done. This should usually not happen, but we can give a - // correct answer regardless. - return Ok(Some(current_frame)); - } - } - - debug_assert!(self.current_frame.is_none()); // Guaranteed as this point. + debug_assert!(self.current_frame.is_none()); // Must be guaranteed by caller. // Try to fetch a frame from the run queue. If there is nothing, we are stuck for now. let (frame, more) = match self.ready_queue.pop_front() { @@ -259,7 +280,7 @@ where self.active_multi_frame[about_to_finish.channel().get() as usize] = None; // There is a chance another multi-frame messages became ready now. - self.process_wait_queue(about_to_finish.channel()); + self.process_wait_queue(about_to_finish.channel())?; } } } @@ -313,6 +334,20 @@ where Ok(()) } + + fn into_stream(self) -> impl Stream> { + futures::stream::unfold(Some(self), |state| async { + let mut this = state?; + let rv = this.next_event().await; + + // Check if this was the last event. We shut down on close or any error. + if rv.as_ref().map(IoEvent::should_shutdown).unwrap_or(true) { + Some((rv, None)) + } else { + Some((rv, Some(this))) + } + }) + } } fn item_is_ready( diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index b7a9120ba5..b40dfd2dae 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -192,6 +192,7 @@ impl Channel { /// A successful read from the peer. #[must_use] +#[derive(Debug)] pub enum CompletedRead { /// An error has been received. /// From 42c4d61a9a2fea9d299d65b128d3854d869f1870 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Mon, 3 Jul 2023 14:55:37 +0000 Subject: [PATCH 499/735] ee/trie_store: use bytesrepr::deserialize_from_slice when appropriate Use `bytesrepr::deserialize_from_slice` instead of `bytesrepr::deserialize` when it's more appropriate to do so to avoid needless conversion. Signed-off-by: Alexandru Sardan --- execution_engine/src/storage/trie_store/lmdb.rs | 2 +- execution_engine/src/storage/trie_store/operations/mod.rs | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/execution_engine/src/storage/trie_store/lmdb.rs b/execution_engine/src/storage/trie_store/lmdb.rs index 9586346de8..55006d1a0a 100644 --- a/execution_engine/src/storage/trie_store/lmdb.rs +++ b/execution_engine/src/storage/trie_store/lmdb.rs @@ -220,7 +220,7 @@ impl ScratchTrieStore { }; let lazy_trie: LazilyDeserializedTrie = - bytesrepr::deserialize(trie_bytes.clone().into())?; + bytesrepr::deserialize_from_slice(trie_bytes)?; tries_to_write.extend(lazy_trie.iter_children()); Store::>::put_raw( diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index 1a1579af8a..ee62f48971 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -330,7 +330,7 @@ where let mut acc: Parents = Vec::new(); loop { - let maybe_trie_leaf = bytesrepr::deserialize(current.into())?; + let maybe_trie_leaf = bytesrepr::deserialize_from_slice(¤t)?; match maybe_trie_leaf { leaf_bytes @ LazilyDeserializedTrie::Leaf(_) => { return Ok(TrieScanRaw::new(leaf_bytes, acc)) @@ -1065,7 +1065,7 @@ where maybe_next_trie = { match self.store.get_raw(self.txn, pointer.hash()) { Ok(Some(trie_bytes)) => { - match bytesrepr::deserialize(trie_bytes.into()) { + match bytesrepr::deserialize_from_slice(&trie_bytes) { Ok(lazy_trie) => Some(lazy_trie), Err(error) => { self.state = KeysIteratorState::Failed; @@ -1115,7 +1115,7 @@ where // anyway if affix.starts_with(&check_prefix) { maybe_next_trie = match self.store.get_raw(self.txn, pointer.hash()) { - Ok(Some(trie_bytes)) => match bytesrepr::deserialize(trie_bytes.into()) + Ok(Some(trie_bytes)) => match bytesrepr::deserialize_from_slice(&trie_bytes) { Ok(lazy_trie) => Some(lazy_trie), Err(error) => { @@ -1172,7 +1172,7 @@ where let (visited, init_state): (Vec, _) = match store.get_raw(txn, root) { Ok(None) => (vec![], KeysIteratorState::Ok), Err(e) => (vec![], KeysIteratorState::ReturnError(e)), - Ok(Some(current_root_bytes)) => match bytesrepr::deserialize(current_root_bytes.into()) { + Ok(Some(current_root_bytes)) => match bytesrepr::deserialize_from_slice(current_root_bytes) { Ok(lazy_trie) => { let visited = vec![VisitedTrieNode { trie: lazy_trie, From 9a4dca391953a3ae300f5b0087ddcd169ea23f2f Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Mon, 3 Jul 2023 15:11:46 +0000 Subject: [PATCH 500/735] ee/trie_store: fix formatting issues Signed-off-by: Alexandru Sardan --- .../src/storage/trie_store/lmdb.rs | 3 +-- .../src/storage/trie_store/operations/mod.rs | 18 ++++++++++-------- 2 files changed, 11 insertions(+), 10 deletions(-) diff --git a/execution_engine/src/storage/trie_store/lmdb.rs b/execution_engine/src/storage/trie_store/lmdb.rs index 55006d1a0a..973539497c 100644 --- a/execution_engine/src/storage/trie_store/lmdb.rs +++ b/execution_engine/src/storage/trie_store/lmdb.rs @@ -219,8 +219,7 @@ impl ScratchTrieStore { continue; }; - let lazy_trie: LazilyDeserializedTrie = - bytesrepr::deserialize_from_slice(trie_bytes)?; + let lazy_trie: LazilyDeserializedTrie = bytesrepr::deserialize_from_slice(trie_bytes)?; tries_to_write.extend(lazy_trie.iter_children()); Store::>::put_raw( diff --git a/execution_engine/src/storage/trie_store/operations/mod.rs b/execution_engine/src/storage/trie_store/operations/mod.rs index ee62f48971..030d72435f 100644 --- a/execution_engine/src/storage/trie_store/operations/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/mod.rs @@ -1115,14 +1115,15 @@ where // anyway if affix.starts_with(&check_prefix) { maybe_next_trie = match self.store.get_raw(self.txn, pointer.hash()) { - Ok(Some(trie_bytes)) => match bytesrepr::deserialize_from_slice(&trie_bytes) - { - Ok(lazy_trie) => Some(lazy_trie), - Err(error) => { - self.state = KeysIteratorState::Failed; - return Some(Err(error.into())); + Ok(Some(trie_bytes)) => { + match bytesrepr::deserialize_from_slice(&trie_bytes) { + Ok(lazy_trie) => Some(lazy_trie), + Err(error) => { + self.state = KeysIteratorState::Failed; + return Some(Err(error.into())); + } } - }, + } Ok(None) => None, Err(e) => { self.state = KeysIteratorState::Failed; @@ -1172,7 +1173,8 @@ where let (visited, init_state): (Vec, _) = match store.get_raw(txn, root) { Ok(None) => (vec![], KeysIteratorState::Ok), Err(e) => (vec![], KeysIteratorState::ReturnError(e)), - Ok(Some(current_root_bytes)) => match bytesrepr::deserialize_from_slice(current_root_bytes) { + Ok(Some(current_root_bytes)) => match bytesrepr::deserialize_from_slice(current_root_bytes) + { Ok(lazy_trie) => { let visited = vec![VisitedTrieNode { trie: lazy_trie, From 500e7e11483481a2de9ca0fe243fb5f7c50ba9d6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 3 Jul 2023 18:01:23 +0200 Subject: [PATCH 501/735] juliet: Sketch logic for `IoId` aware cancellation handling --- juliet/src/io.rs | 280 ++++++++++++++++++++++++++++++++--------- juliet/src/protocol.rs | 2 +- 2 files changed, 225 insertions(+), 57 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index a65b7e8622..e953c2d95a 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -10,22 +10,20 @@ //! receiving them as they arrive. use std::{ - collections::{HashSet, VecDeque}, + collections::{HashMap, HashSet, VecDeque}, io, - pin::Pin, sync::{ atomic::{AtomicUsize, Ordering}, Arc, }, - task::{Context, Poll}, }; -use bytes::{Buf, Bytes, BytesMut}; +use bytes::{Bytes, BytesMut}; use futures::Stream; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, - sync::mpsc::{error::TryRecvError, error::TrySendError, Receiver, Sender}, + sync::mpsc::{error::TrySendError, Receiver, Sender}, }; use crate::{ @@ -39,11 +37,28 @@ use crate::{ #[derive(Debug)] enum QueuedItem { - Request { payload: Option }, - Response { id: Id, payload: Option }, - RequestCancellation { id: Id }, - ResponseCancellation { id: Id }, - Error { id: Id, payload: Bytes }, + Request { + io_id: IoId, + channel: ChannelId, + payload: Option, + }, + Response { + channel: ChannelId, + id: Id, + payload: Option, + }, + RequestCancellation { + io_id: IoId, + }, + ResponseCancellation { + channel: ChannelId, + id: Id, + }, + Error { + channel: ChannelId, + id: Id, + payload: Bytes, + }, } impl QueuedItem { @@ -58,7 +73,7 @@ impl QueuedItem { fn into_payload(self) -> Option { match self { - QueuedItem::Request { payload } => payload, + QueuedItem::Request { payload, .. } => payload, QueuedItem::Response { payload, .. } => payload, QueuedItem::RequestCancellation { .. } => None, QueuedItem::ResponseCancellation { .. } => None, @@ -67,6 +82,28 @@ impl QueuedItem { } } +fn x(q: QueuedItem) { + match q { + QueuedItem::Request { + io_id, + channel, + payload, + } => todo!(), + QueuedItem::Response { + id, + channel, + payload, + } => todo!(), + QueuedItem::RequestCancellation { io_id } => todo!(), + QueuedItem::ResponseCancellation { id, channel } => todo!(), + QueuedItem::Error { + id, + channel, + payload, + } => todo!(), + } +} + /// [`IoCore`] error. #[derive(Debug, Error)] pub enum CoreError { @@ -83,6 +120,9 @@ pub enum CoreError { LocalProtocolViolation(#[from] LocalProtocolViolation), } +#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] +pub struct IoId(u128); + pub struct IoCore { /// The actual protocol state. juliet: JulietProtocol, @@ -105,12 +145,31 @@ pub struct IoCore { /// Messages queued that are not yet ready to send. wait_queue: [VecDeque; N], /// Receiver for new items to send. - receiver: Receiver<(ChannelId, QueuedItem)>, + receiver: Receiver, + /// Mapping for outgoing requests, mapping internal IDs to public ones. + request_map: HashMap, /// Shared data across handles and core. shared: Arc>, } +#[derive(Copy, Clone, Debug)] +enum RequestState { + /// The request is currently waiting and thus has not been assigned an ID yet. + Waiting, + /// The request has been sent. + Allocated { + /// ID assigned by the protocol core. + id: Id, + }, + /// The request has been sent out. + Sent { id: Id }, + /// Request has been cancelled, we are waiting for the allocated ID to be reused. + CancellationPending, + /// Request has been sent, but a cancellation has been sent shortly after. + CancellationSent { id: Id }, +} + struct IoShared { /// Number of requests already buffered per channel. requests_buffered: [AtomicUsize; N], @@ -118,6 +177,12 @@ struct IoShared { requests_limit: [usize; N], } +impl IoShared { + fn next_id(&self) -> IoId { + todo!() + } +} + #[derive(Debug)] pub enum IoEvent { CompletedRead(CompletedRead), @@ -191,33 +256,17 @@ where // Fall through to start of loop, which parses data read. } - incoming = self.receiver.recv() => { + mut incoming = self.receiver.recv() => { let mut modified_channels = HashSet::new(); - let shutdown = match incoming { - Some((channel, item)) => { - modified_channels.insert(channel); - self.wait_queue[channel.get() as usize].push_back(item); - - // Loop in case there are more items, to avoid processing the wait queue - // too often. - loop { - match self.receiver.try_recv() { - Ok((channel, item)) => { - modified_channels.insert(channel); - self.wait_queue[channel.get() as usize].push_back(item); - } - Err(TryRecvError::Empty) => { - break false; - } - Err(TryRecvError::Disconnected) => { - break true; - } - } - } - }, - None => { true } - }; + match incoming { + Some(item) => self.handle_incoming_item(item, &mut modified_channels)?; + None => { + return Ok(IoEvent::RemoteClosed); + } + } + + todo!("loop over remainder") if shutdown { return Ok(IoEvent::LocalShutdown); @@ -249,6 +298,103 @@ where todo!() } + fn handle_incoming_item( + &mut self, + item: QueuedItem, + channels_to_process: &mut HashSet, + ) -> Result<(), LocalProtocolViolation> { + match item { + QueuedItem::Request { + io_id, + channel, + payload, + } => { + let active_multi_frame = self.active_multi_frame[channel.get() as usize]; + + // Check if we can eagerly schedule, saving a trip through the wait queue. + if item_is_ready(channel, &item, &self.juliet, &mut active_multi_frame) { + // The item is ready, we can directly schedule it and skip the wait queue. + let msg = self.juliet.create_request(channel, payload)?; + let id = msg.header().id(); + self.ready_queue.push_back(msg.frames()); + self.request_map + .insert(io_id, (channel, RequestState::Sent { id })); + } else { + // Item not ready, put it into the wait queue. + self.wait_queue[channel.get() as usize].push_back(item); + self.request_map + .insert(io_id, (channel, RequestState::Waiting)); + channels_to_process.insert(channel); + } + } + QueuedItem::Response { + id, + channel, + payload, + } => { + let active_multi_frame = self.active_multi_frame[channel.get() as usize]; + if item_is_ready(channel, &item, &self.juliet, &mut active_multi_frame) { + // The item is ready, we can directly schedule it and skip the wait queue. + if let Some(msg) = self.juliet.create_response(channel, id, payload)? { + self.ready_queue.push_back(msg.frames()) + } + } else { + // Item not ready, put it into the wait queue. + self.wait_queue[channel.get() as usize].push_back(item); + channels_to_process.insert(channel); + } + } + QueuedItem::RequestCancellation { io_id } => { + let (channel, state) = self.request_map.get(&io_id).expect("request map corrupted"); + match state { + RequestState::Waiting => { + // The request is in the wait or run queue, cancel it during processing. + self.request_map + .insert(io_id, (*channel, RequestState::CancellationPending)); + } + RequestState::Allocated { id } => { + // Create the cancellation, but don't send it, since we caught it in time. + self.juliet.cancel_request(*channel, *id)?; + self.request_map + .insert(io_id, (*channel, RequestState::CancellationPending)); + } + RequestState::Sent { id } => { + // Request has already been sent, schedule the cancellation message. We can + // bypass the wait queue, since cancellations are always valid to add. We'll + // also add it to the front of the queue to ensure they arrive in time. + + if let Some(msg) = self.juliet.cancel_request(*channel, *id)? { + self.ready_queue.push_front(msg.frames()); + } + } + RequestState::CancellationPending + | RequestState::CancellationSent { id: _ } => { + // Someone copied the `IoId`, we got a duplicated cancellation. Do nothing. + } + } + } + QueuedItem::ResponseCancellation { id, channel } => { + // `juliet` already tracks whether we still need to send the cancellation. + // Unlike requests, we do not attempt to fish responses out of the queue, + // cancelling a response after it has been created should be rare. + if let Some(msg) = self.juliet.cancel_response(channel, id)? { + self.ready_queue.push_back(msg.frames()); + } + } + QueuedItem::Error { + id, + channel, + payload, + } => { + // Errors go straight to the front of the line. + let msg = self.juliet.custom_error(channel, id, payload)?; + self.ready_queue.push_front(msg.frames()); + } + } + + Ok(()) + } + /// Clears a potentially finished frame and returns the best next frame to send. /// /// Returns `None` if no frames are ready to be sent. Note that there may be frames waiting @@ -290,6 +436,8 @@ where /// Process the wait queue, moving messages that are ready to be sent to the ready queue. fn process_wait_queue(&mut self, channel: ChannelId) -> Result<(), LocalProtocolViolation> { + // TODO: Rewrite, factoring out functions from `handle_incoming`. + let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; let wait_queue = &mut self.wait_queue[channel.get() as usize]; for _ in 0..(wait_queue.len()) { @@ -306,17 +454,17 @@ where let msg = self.juliet.create_request(channel, payload)?; self.ready_queue.push_back(msg.frames()); } - QueuedItem::Response { id, payload } => { + QueuedItem::Response { io_id: id, payload } => { if let Some(msg) = self.juliet.create_response(channel, id, payload)? { self.ready_queue.push_back(msg.frames()); } } - QueuedItem::RequestCancellation { id } => { + QueuedItem::RequestCancellation { io_id: id } => { if let Some(msg) = self.juliet.cancel_request(channel, id)? { self.ready_queue.push_back(msg.frames()); } } - QueuedItem::ResponseCancellation { id } => { + QueuedItem::ResponseCancellation { io_id: id } => { if let Some(msg) = self.juliet.cancel_response(channel, id)? { self.ready_queue.push_back(msg.frames()); } @@ -381,7 +529,8 @@ fn item_is_ready( struct IoHandle { shared: Arc>, /// Sender for queue items. - sender: Sender<(ChannelId, QueuedItem)>, + sender: Sender, + next_io_id: u128, } #[derive(Debug, Error)] @@ -398,14 +547,13 @@ enum EnqueueError { } impl EnqueueError { - fn from_failed_send(err: TrySendError<(ChannelId, QueuedItem)>) -> Self { + #[inline(always)] + fn from_failed_send(err: TrySendError) -> Self { match err { // Note: The `Full` state should never happen unless our queue sizing is incorrect, we // sweep this under the rug here. - TrySendError::Full((_channel, item)) => { - EnqueueError::RequestLimitHit(item.into_payload()) - } - TrySendError::Closed((_channel, item)) => EnqueueError::Closed(item.into_payload()), + TrySendError::Full(item) => EnqueueError::RequestLimitHit(item.into_payload()), + TrySendError::Closed(item) => EnqueueError::Closed(item.into_payload()), } } } @@ -415,7 +563,7 @@ impl IoHandle { &self, channel: ChannelId, payload: Option, - ) -> Result<(), EnqueueError> { + ) -> Result { bounds_check::(channel)?; let count = &self.shared.requests_buffered[channel.get() as usize]; @@ -431,9 +579,19 @@ impl IoHandle { }) { Ok(_prev) => { // We successfully increment the count. + let io_id = IoId(self.next_io_id); + + // Does not roll over before at least 10^18 zettabytes have been sent. + self.next_io_id = self.next_io_id.wrapping_add(1); + self.sender - .try_send((channel, QueuedItem::Request { payload })) - .map_err(EnqueueError::from_failed_send) + .try_send(QueuedItem::Request { + io_id, + channel, + payload, + }) + .map_err(EnqueueError::from_failed_send)?; + Ok(io_id) } Err(_prev) => Err(EnqueueError::RequestLimitHit(payload)), } @@ -445,18 +603,24 @@ impl IoHandle { id: Id, payload: Option, ) -> Result<(), EnqueueError> { - bounds_check::(channel)?; - self.sender - .try_send((channel, QueuedItem::Response { id, payload })) + .try_send(QueuedItem::Response { + channel, + id, + payload, + }) .map_err(EnqueueError::from_failed_send) } - fn enqueue_request_cancellation(&self, channel: ChannelId, id: Id) -> Result<(), EnqueueError> { + fn enqueue_request_cancellation( + &self, + channel: ChannelId, + io_id: IoId, + ) -> Result<(), EnqueueError> { bounds_check::(channel)?; self.sender - .try_send((channel, QueuedItem::RequestCancellation { id })) + .try_send(QueuedItem::RequestCancellation { io_id }) .map_err(EnqueueError::from_failed_send) } @@ -468,7 +632,7 @@ impl IoHandle { bounds_check::(channel)?; self.sender - .try_send((channel, QueuedItem::ResponseCancellation { id })) + .try_send(QueuedItem::ResponseCancellation { id, channel }) .map_err(EnqueueError::from_failed_send) } @@ -479,7 +643,11 @@ impl IoHandle { payload: Bytes, ) -> Result<(), EnqueueError> { self.sender - .try_send((channel, QueuedItem::Error { id, payload })) + .try_send(QueuedItem::Error { + id, + channel, + payload, + }) .map_err(EnqueueError::from_failed_send) } } diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index b40dfd2dae..a64dd37202 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -410,7 +410,7 @@ impl JulietProtocol { /// Creates a cancellation for an outgoing request. /// - /// If the ID is not in the outgoing set, due to already being responsed to or cancelled, `None` + /// If the ID is not in the outgoing set, due to already being responded to or cancelled, `None` /// will be returned. /// /// If the caller does not track the use of IDs separately to the [`JulietProtocol`] structure, From c7e3f0e742de45b0fb33c0690989b46ab33db6c9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 5 Jul 2023 05:19:24 +0200 Subject: [PATCH 502/735] juliet: Refactor io method, except for `process_wait_queue` --- Cargo.lock | 7 + juliet/Cargo.toml | 1 + juliet/src/io.rs | 195 ++++++++++++------------ juliet/src/protocol.rs | 21 ++- juliet/src/protocol/outgoing_message.rs | 10 +- 5 files changed, 133 insertions(+), 101 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index cfe5db3d8d..6e4058c289 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2486,6 +2486,7 @@ dependencies = [ "bytemuck", "bytes", "futures", + "portable-atomic", "proptest", "proptest-attr-macro", "proptest-derive", @@ -3340,6 +3341,12 @@ dependencies = [ "pnet_sys", ] +[[package]] +name = "portable-atomic" +version = "1.3.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "767eb9f07d4a5ebcb39bbf2d452058a93c011373abf6832e24194a1c3f004794" + [[package]] name = "ppv-lite86" version = "0.2.17" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index ff75853291..4256d9088a 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -9,6 +9,7 @@ array-init = "2.1.0" bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" futures = "0.3.28" +portable-atomic = "1.3.3" thiserror = "1.0.40" tokio = { version = "1.29.1", features = ["macros", "io-util", "sync"] } diff --git a/juliet/src/io.rs b/juliet/src/io.rs index e953c2d95a..ac5a240778 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -20,6 +20,7 @@ use std::{ use bytes::{Bytes, BytesMut}; use futures::Stream; +use portable_atomic::AtomicU128; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, @@ -29,8 +30,8 @@ use tokio::{ use crate::{ header::Header, protocol::{ - CompletedRead, FrameIter, JulietProtocol, LocalProtocolViolation, OutgoingFrame, - OutgoingMessage, + payload_is_multi_frame, CompletedRead, FrameIter, JulietProtocol, LocalProtocolViolation, + OutgoingFrame, OutgoingMessage, }, ChannelId, Id, Outcome, }; @@ -62,15 +63,6 @@ enum QueuedItem { } impl QueuedItem { - #[inline(always)] - fn is_request(&self) -> bool { - matches!(self, QueuedItem::Request { .. }) - } - - fn is_multi_frame(&self, max_frame_size: u32) -> bool { - todo!() - } - fn into_payload(self) -> Option { match self { QueuedItem::Request { payload, .. } => payload, @@ -256,26 +248,28 @@ where // Fall through to start of loop, which parses data read. } - mut incoming = self.receiver.recv() => { + incoming = self.receiver.recv() => { let mut modified_channels = HashSet::new(); match incoming { - Some(item) => self.handle_incoming_item(item, &mut modified_channels)?; + Some(item) => { + self.handle_incoming_item(item, &mut modified_channels)?; + } None => { return Ok(IoEvent::RemoteClosed); } } - todo!("loop over remainder") + todo!("loop over remainder"); - if shutdown { - return Ok(IoEvent::LocalShutdown); - } else { - // Only process wait queue after having added all messages. - for channel in modified_channels { - self.process_wait_queue(channel)?; - } - } + // if shutdown { + // return Ok(IoEvent::LocalShutdown); + // } else { + // // Only process wait queue after having added all messages. + // for channel in modified_channels { + // self.process_wait_queue(channel)?; + // } + // } } } } @@ -300,21 +294,21 @@ where fn handle_incoming_item( &mut self, - item: QueuedItem, + mut item: QueuedItem, channels_to_process: &mut HashSet, ) -> Result<(), LocalProtocolViolation> { + let ready = item_is_ready(&item, &self.juliet, &self.active_multi_frame); + match item { QueuedItem::Request { io_id, channel, - payload, + ref mut payload, } => { - let active_multi_frame = self.active_multi_frame[channel.get() as usize]; - // Check if we can eagerly schedule, saving a trip through the wait queue. - if item_is_ready(channel, &item, &self.juliet, &mut active_multi_frame) { + if ready { // The item is ready, we can directly schedule it and skip the wait queue. - let msg = self.juliet.create_request(channel, payload)?; + let msg = self.juliet.create_request(channel, payload.take())?; let id = msg.header().id(); self.ready_queue.push_back(msg.frames()); self.request_map @@ -330,12 +324,11 @@ where QueuedItem::Response { id, channel, - payload, + ref mut payload, } => { - let active_multi_frame = self.active_multi_frame[channel.get() as usize]; - if item_is_ready(channel, &item, &self.juliet, &mut active_multi_frame) { + if ready { // The item is ready, we can directly schedule it and skip the wait queue. - if let Some(msg) = self.juliet.create_response(channel, id, payload)? { + if let Some(msg) = self.juliet.create_response(channel, id, payload.take())? { self.ready_queue.push_back(msg.frames()) } } else { @@ -436,49 +429,49 @@ where /// Process the wait queue, moving messages that are ready to be sent to the ready queue. fn process_wait_queue(&mut self, channel: ChannelId) -> Result<(), LocalProtocolViolation> { - // TODO: Rewrite, factoring out functions from `handle_incoming`. - - let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; - let wait_queue = &mut self.wait_queue[channel.get() as usize]; - for _ in 0..(wait_queue.len()) { - // Note: We do not use `drain` here, since we want to modify in-place. `retain` is also - // not used, since it does not allow taking out items by-value. An alternative - // might be sorting the list and splitting off the candidates instead. - let item = wait_queue - .pop_front() - .expect("did not expect to run out of items"); - - if item_is_ready(channel, &item, &self.juliet, active_multi_frame) { - match item { - QueuedItem::Request { payload } => { - let msg = self.juliet.create_request(channel, payload)?; - self.ready_queue.push_back(msg.frames()); - } - QueuedItem::Response { io_id: id, payload } => { - if let Some(msg) = self.juliet.create_response(channel, id, payload)? { - self.ready_queue.push_back(msg.frames()); - } - } - QueuedItem::RequestCancellation { io_id: id } => { - if let Some(msg) = self.juliet.cancel_request(channel, id)? { - self.ready_queue.push_back(msg.frames()); - } - } - QueuedItem::ResponseCancellation { io_id: id } => { - if let Some(msg) = self.juliet.cancel_response(channel, id)? { - self.ready_queue.push_back(msg.frames()); - } - } - QueuedItem::Error { id, payload } => { - let msg = self.juliet.custom_error(channel, id, payload)?; - // Errors go into the front. - self.ready_queue.push_front(msg.frames()); - } - } - } else { - wait_queue.push_back(item); - } - } + // // TODO: Rewrite, factoring out functions from `handle_incoming`. + + // let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; + // let wait_queue = &mut self.wait_queue[channel.get() as usize]; + // for _ in 0..(wait_queue.len()) { + // // Note: We do not use `drain` here, since we want to modify in-place. `retain` is also + // // not used, since it does not allow taking out items by-value. An alternative + // // might be sorting the list and splitting off the candidates instead. + // let item = wait_queue + // .pop_front() + // .expect("did not expect to run out of items"); + + // if item_is_ready(channel, &item, &self.juliet, active_multi_frame) { + // match item { + // QueuedItem::Request { payload } => { + // let msg = self.juliet.create_request(channel, payload)?; + // self.ready_queue.push_back(msg.frames()); + // } + // QueuedItem::Response { io_id: id, payload } => { + // if let Some(msg) = self.juliet.create_response(channel, id, payload)? { + // self.ready_queue.push_back(msg.frames()); + // } + // } + // QueuedItem::RequestCancellation { io_id: id } => { + // if let Some(msg) = self.juliet.cancel_request(channel, id)? { + // self.ready_queue.push_back(msg.frames()); + // } + // } + // QueuedItem::ResponseCancellation { io_id: id } => { + // if let Some(msg) = self.juliet.cancel_response(channel, id)? { + // self.ready_queue.push_back(msg.frames()); + // } + // } + // QueuedItem::Error { id, payload } => { + // let msg = self.juliet.custom_error(channel, id, payload)?; + // // Errors go into the front. + // self.ready_queue.push_front(msg.frames()); + // } + // } + // } else { + // wait_queue.push_back(item); + // } + // } Ok(()) } @@ -499,26 +492,43 @@ where } fn item_is_ready( - channel: ChannelId, item: &QueuedItem, juliet: &JulietProtocol, - active_multi_frame: &Option
, + active_multi_frame: &[Option
; N], ) -> bool { - // Check if we cannot schedule due to the message exceeding the request limit. - if item.is_request() { - if !juliet - .allowed_to_send_request(channel) - .expect("should not be called with invalid channel") - { - return false; + let (payload, channel) = match item { + QueuedItem::Request { + channel, payload, .. + } => { + // Check if we cannot schedule due to the message exceeding the request limit. + if !juliet + .allowed_to_send_request(*channel) + .expect("should not be called with invalid channel") + { + return false; + } + + (payload, channel) } - } + QueuedItem::Response { + channel, payload, .. + } => (payload, channel), + + // Other messages are always ready. + QueuedItem::RequestCancellation { .. } + | QueuedItem::ResponseCancellation { .. } + | QueuedItem::Error { .. } => return true, + }; + + let mut active_multi_frame = active_multi_frame[channel.get() as usize]; // Check if we cannot schedule due to the message being multi-frame and there being a // multi-frame send in progress: if active_multi_frame.is_some() { - if item.is_multi_frame(juliet.max_frame_size()) { - return false; + if let Some(payload) = payload { + if payload_is_multi_frame(juliet.max_frame_size(), payload.len()) { + return false; + } } } @@ -530,7 +540,7 @@ struct IoHandle { shared: Arc>, /// Sender for queue items. sender: Sender, - next_io_id: u128, + next_io_id: Arc, } #[derive(Debug, Error)] @@ -560,7 +570,7 @@ impl EnqueueError { impl IoHandle { fn enqueue_request( - &self, + &mut self, channel: ChannelId, payload: Option, ) -> Result { @@ -578,11 +588,8 @@ impl IoHandle { } }) { Ok(_prev) => { - // We successfully increment the count. - let io_id = IoId(self.next_io_id); - - // Does not roll over before at least 10^18 zettabytes have been sent. - self.next_io_id = self.next_io_id.wrapping_add(1); + // Does not overflow before at least 10^18 zettabytes have been sent. + let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); self.sender .try_send(QueuedItem::Request { diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index a64dd37202..e9eff7f97f 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -22,7 +22,7 @@ use crate::{ header::{self, ErrorKind, Header, Kind}, try_outcome, util::Index, - varint::decode_varint32, + varint::{decode_varint32, Varint32}, ChannelConfiguration, ChannelId, Id, Outcome::{self, Fatal, Incomplete, Success}, }; @@ -478,7 +478,7 @@ impl JulietProtocol { let header = Header::new_error(header::ErrorKind::Other, channel, id); let msg = OutgoingMessage::new(header, Some(payload)); - if msg.is_multi_frame(self.max_frame_size as usize) { + if msg.is_multi_frame(self.max_frame_size) { Err(LocalProtocolViolation::ErrorPayloadIsMultiFrame) } else { Ok(msg) @@ -729,3 +729,20 @@ impl JulietProtocol { fn err_msg(header: Header, kind: ErrorKind) -> Outcome { Fatal(OutgoingMessage::new(header.with_err(kind), None)) } + +/// Determines whether or not a payload with the given size is a multi-frame payload when sent +/// using the provided maximum frame size. +/// +/// # Panics +/// +/// Panics in debug mode if the given payload length is larger than `u32::MAX`. +#[inline] +pub fn payload_is_multi_frame(max_frame_size: u32, payload_len: usize) -> bool { + debug_assert!( + payload_len <= u32::MAX as usize, + "payload cannot exceed `u32::MAX`" + ); + + payload_len as u64 + Header::SIZE as u64 + (Varint32::encode(payload_len as u32)).len() as u64 + > max_frame_size as u64 +} diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 3d147ef87a..2e06a573f5 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -4,13 +4,15 @@ //! juliet networking protocol, this module contains the necessary output types like //! [`OutgoingMessage`]. -use std::{io::Cursor, iter}; +use std::io::Cursor; use bytemuck::{Pod, Zeroable}; use bytes::{buf::Chain, Buf, Bytes}; use crate::{header::Header, varint::Varint32}; +use super::payload_is_multi_frame; + /// A message to be sent to the peer. /// /// [`OutgoingMessage`]s are generated when the protocol requires data to be sent to the peer. @@ -38,11 +40,9 @@ impl OutgoingMessage { /// Returns whether or not a message will span multiple frames. #[inline(always)] - pub fn is_multi_frame(&self, max_frame_size: usize) -> bool { + pub fn is_multi_frame(&self, max_frame_size: u32) -> bool { if let Some(ref payload) = self.payload { - let payload_size = payload.len(); - payload_size + Header::SIZE + (Varint32::encode(payload_size as u32)).len() - > max_frame_size + payload_is_multi_frame(max_frame_size, payload.len()) } else { false } From fff98ffb0596181ab03b1434c9b3407183dd91a4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 7 Jul 2023 17:45:35 +0200 Subject: [PATCH 503/735] juliet: Conceptually simplify the tracking of IO ids and request ids by eliminating the redundant state machine already found in the protocol --- Cargo.lock | 7 ++ juliet/Cargo.toml | 1 + juliet/src/header.rs | 17 ++++- juliet/src/io.rs | 143 +++++++++++++++++++++++------------------ juliet/src/protocol.rs | 20 +++++- 5 files changed, 124 insertions(+), 64 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 6e4058c289..6c7f095ea9 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -231,6 +231,12 @@ version = "0.21.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a" +[[package]] +name = "bimap" +version = "0.6.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "230c5f1ca6a325a32553f8640d31ac9b49f2411e901e427570154868b46da4f7" + [[package]] name = "bincode" version = "1.3.3" @@ -2483,6 +2489,7 @@ name = "juliet" version = "0.1.0" dependencies = [ "array-init", + "bimap", "bytemuck", "bytes", "futures", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 4256d9088a..d38d2ba6cd 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -6,6 +6,7 @@ authors = [ "Marc Brinkmann " ] [dependencies] array-init = "2.1.0" +bimap = "0.6.3" bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" futures = "0.3.28" diff --git a/juliet/src/header.rs b/juliet/src/header.rs index a62b41d4ce..c52cd4a66b 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -2,6 +2,7 @@ use std::fmt::Debug; use bytemuck::{Pod, Zeroable}; +use thiserror::Error; use crate::{ChannelId, Id}; @@ -38,38 +39,52 @@ impl Debug for Header { } /// Error kind, from the kind byte. -#[derive(Copy, Clone, Debug)] +#[derive(Copy, Clone, Debug, Error)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] pub enum ErrorKind { /// Application defined error. + #[error("application defined error")] Other = 0, /// The maximum frame size has been exceeded. This error cannot occur in this implementation, /// which operates solely on streams. + #[error("maximum frame size exceeded")] MaxFrameSizeExceeded = 1, /// An invalid header was received. + #[error("invalid header")] InvalidHeader = 2, /// A segment was sent with a frame where none was allowed, or a segment was too small or missing. + #[error("segment violation")] SegmentViolation = 3, /// A `varint32` could not be decoded. + #[error("bad varint")] BadVarInt = 4, /// Invalid channel: A channel number greater or equal the highest channel number was received. + #[error("invalid channel")] InvalidChannel = 5, /// A new request or response was sent without completing the previous one. + #[error("multi-frame in progress")] InProgress = 6, /// The indicated size of the response would be exceeded the configured limit. + #[error("response too large")] ResponseTooLarge = 7, /// The indicated size of the request would be exceeded the configured limit. + #[error("request too large")] RequestTooLarge = 8, /// Peer attempted to create two in-flight requests with the same ID on the same channel. + #[error("duplicate request")] DuplicateRequest = 9, /// Sent a response for request not in-flight. + #[error("response for ficticious request")] FictitiousRequest = 10, /// The dynamic request limit has been exceeded. + #[error("request limit exceeded")] RequestLimitExceeded = 11, /// Response cancellation for a request not in-flight. + #[error("cancellation for ficticious request")] FictitiousCancel = 12, /// Peer sent a request cancellation exceeding the cancellation allowance. + #[error("cancellation limit exceeded")] CancellationLimitExceeded = 13, // Note: When adding additional kinds, update the `HIGHEST` associated constant. } diff --git a/juliet/src/io.rs b/juliet/src/io.rs index ac5a240778..5e91b27f71 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -11,6 +11,7 @@ use std::{ collections::{HashMap, HashSet, VecDeque}, + intrinsics::unreachable, io, sync::{ atomic::{AtomicUsize, Ordering}, @@ -18,6 +19,7 @@ use std::{ }, }; +use bimap::BiMap; use bytes::{Bytes, BytesMut}; use futures::Stream; use portable_atomic::AtomicU128; @@ -74,28 +76,6 @@ impl QueuedItem { } } -fn x(q: QueuedItem) { - match q { - QueuedItem::Request { - io_id, - channel, - payload, - } => todo!(), - QueuedItem::Response { - id, - channel, - payload, - } => todo!(), - QueuedItem::RequestCancellation { io_id } => todo!(), - QueuedItem::ResponseCancellation { id, channel } => todo!(), - QueuedItem::Error { - id, - channel, - payload, - } => todo!(), - } -} - /// [`IoCore`] error. #[derive(Debug, Error)] pub enum CoreError { @@ -105,11 +85,28 @@ pub enum CoreError { /// Failed to write using underlying writer. #[error("write failed")] WriteFailed(#[source] io::Error), + /// Remote peer disconnecting due to error. + #[error("remote peer sent error [channel {}/id {}]: {} (payload: {} bytes)", + header.channel(), + header.id(), + header.error_kind(), + data.map(|b| b.len()).unwrap_or(0)) + ] + RemoteReportedError { header: Header, data: Option }, + #[error("error sent to peer")] ErrorSent(OutgoingFrame), #[error("local protocol violation")] /// Local protocol violation - caller violated the crate's API. LocalProtocolViolation(#[from] LocalProtocolViolation), + /// Bug - mapping of `IoID` to request broke. + #[error("internal error: IO id disappeared on channel {channel}, id {id}")] + IoIdDisappeared { channel: ChannelId, id: Id }, + /// Internal error. + /// + /// An error occured that should be impossible, thus this indicative of a bug in the library. + #[error("internal consistency error: {0}")] + ConsistencyError(&'static str), } #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] @@ -139,29 +136,12 @@ pub struct IoCore { /// Receiver for new items to send. receiver: Receiver, /// Mapping for outgoing requests, mapping internal IDs to public ones. - request_map: HashMap, + request_map: BiMap, /// Shared data across handles and core. shared: Arc>, } -#[derive(Copy, Clone, Debug)] -enum RequestState { - /// The request is currently waiting and thus has not been assigned an ID yet. - Waiting, - /// The request has been sent. - Allocated { - /// ID assigned by the protocol core. - id: Id, - }, - /// The request has been sent out. - Sent { id: Id }, - /// Request has been cancelled, we are waiting for the allocated ID to be reused. - CancellationPending, - /// Request has been sent, but a cancellation has been sent shortly after. - CancellationSent { id: Id }, -} - struct IoShared { /// Number of requests already buffered per channel. requests_buffered: [AtomicUsize; N], @@ -177,7 +157,22 @@ impl IoShared { #[derive(Debug)] pub enum IoEvent { - CompletedRead(CompletedRead), + NewRequest { + channel: ChannelId, + id: Id, + payload: Option, + }, + ReceivedResponse { + io_id: IoId, + payload: Option, + }, + RequestCancellation { + id: Id, + }, + ResponseCancellation { + io_id: IoId, + }, + RemoteClosed, LocalShutdown, } @@ -186,9 +181,11 @@ impl IoEvent { #[inline(always)] fn should_shutdown(&self) -> bool { match self { - IoEvent::CompletedRead(_) => false, - IoEvent::RemoteClosed => true, - IoEvent::LocalShutdown => true, + IoEvent::NewRequest { .. } + | IoEvent::ReceivedResponse { .. } + | IoEvent::RequestCancellation { .. } + | IoEvent::ResponseCancellation { .. } => false, + IoEvent::RemoteClosed | IoEvent::LocalShutdown => true, } } } @@ -261,30 +258,54 @@ where } todo!("loop over remainder"); - - // if shutdown { - // return Ok(IoEvent::LocalShutdown); - // } else { - // // Only process wait queue after having added all messages. - // for channel in modified_channels { - // self.process_wait_queue(channel)?; - // } - // } } } } } - fn handle_completed_read(&mut self, read: CompletedRead) -> Result { - match read { + fn handle_completed_read( + &mut self, + completed_read: CompletedRead, + ) -> Result, CoreError> { + match completed_read { CompletedRead::ErrorReceived { header, data } => { - // We've received an error, thus we should shut down the connection immediately. - todo!() + // We've received an error from the peer, they will be closing the connection. + return Err(CoreError::RemoteReportedError { header, data }); + } + + CompletedRead::NewRequest { + channel, + id, + payload, + } => { + // Requests have their id passed through, since they are not given an `IoId`. + return Ok(Some(IoEvent::NewRequest { + channel, + id, + payload, + })); + } + CompletedRead::RequestCancellation { channel, id } => { + todo!("ensure the request is cancelled - do we need an io-id as well?") + } + + // It is not our job to ensure we do not receive duplicate responses or cancellations; + // this is taken care of by `JulietProtocol`. + CompletedRead::ReceivedResponse { + channel, + id, + payload, + } => Ok(self + .request_map + .remove_by_right(&(channel, id)) + .map(move |(io_id, _)| IoEvent::ReceivedResponse { io_id, payload })), + CompletedRead::ResponseCancellation { channel, id } => { + // Responses are mapped to the respective `IoId`. + Ok(self + .request_map + .remove_by_right(&(channel, id)) + .map(|(io_id, _)| IoEvent::ResponseCancellation { io_id })) } - CompletedRead::NewRequest { id, payload } => todo!(), - CompletedRead::ReceivedResponse { id, payload } => todo!(), - CompletedRead::RequestCancellation { id } => todo!(), - CompletedRead::ResponseCancellation { id } => todo!(), } } diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index e9eff7f97f..0733bb682a 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -205,6 +205,8 @@ pub enum CompletedRead { }, /// A new request has been received. NewRequest { + /// The channel of the request. + channel: ChannelId, /// The ID of the request. id: Id, /// Request payload. @@ -212,6 +214,8 @@ pub enum CompletedRead { }, /// A response to one of our requests has been received. ReceivedResponse { + /// The channel of the response. + channel: ChannelId, /// The ID of the request received. id: Id, /// The response payload. @@ -219,11 +223,15 @@ pub enum CompletedRead { }, /// A request was cancelled by the peer. RequestCancellation { + /// The channel of the request cancellation. + channel: ChannelId, /// ID of the request to be cancelled. id: Id, }, /// A response was cancelled by the peer. ResponseCancellation { + /// The channel of the response cancellation. + channel: ChannelId, /// The ID of the response to be cancelled. id: Id, }, @@ -592,6 +600,7 @@ impl JulietProtocol { buffer.advance(Header::SIZE); return Success(CompletedRead::NewRequest { + channel: header.channel(), id: header.id(), payload: None, }); @@ -601,6 +610,7 @@ impl JulietProtocol { return err_msg(header, ErrorKind::FictitiousRequest); } else { return Success(CompletedRead::ReceivedResponse { + channel: header.channel(), id: header.id(), payload: None, }); @@ -707,11 +717,17 @@ impl JulietProtocol { // TODO: What to do with partially received multi-frame request? // TODO: Actually remove from incoming set. - return Success(CompletedRead::RequestCancellation { id: header.id() }); + return Success(CompletedRead::RequestCancellation { + channel: header.channel(), + id: header.id(), + }); } Kind::CancelResp => { if channel.outgoing_requests.remove(&header.id()) { - return Success(CompletedRead::ResponseCancellation { id: header.id() }); + return Success(CompletedRead::ResponseCancellation { + channel: header.channel(), + id: header.id(), + }); } else { return err_msg(header, ErrorKind::FictitiousCancel); } From 40610da22c8ab14d25f32e521f6e0ab31dc1dd65 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 9 Jul 2023 17:40:15 +0200 Subject: [PATCH 504/735] juliet: Cleanup event processing loop of `IoCore` --- juliet/src/io.rs | 270 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 187 insertions(+), 83 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 5e91b27f71..53c5d7483a 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -1,17 +1,15 @@ //! `juliet` IO layer //! //! The IO layer combines a lower-level transport like a TCP Stream with the -//! [`JulietProtocol`](crate::juliet::JulietProtocol) protocol implementation and some memory buffer -//! to provide a working high-level transport for juliet messages. It allows users of this layer to -//! send messages across over multiple channels, without having to worry about frame multiplexing or -//! request limits. +//! [`JulietProtocol`](crate::juliet::JulietProtocol) protocol implementation and some memory +//! buffers to provide a working high-level transport for juliet messages. It allows users of this +//! layer to send messages across over multiple channels, without having to worry about frame +//! multiplexing or request limits. //! -//! The layer is designed to run in its own task, with handles to allow sending messages in, or -//! receiving them as they arrive. +//! See [`IoCore`] for more information about how to use this module. use std::{ - collections::{HashMap, HashSet, VecDeque}, - intrinsics::unreachable, + collections::{HashSet, VecDeque}, io, sync::{ atomic::{AtomicUsize, Ordering}, @@ -20,13 +18,16 @@ use std::{ }; use bimap::BiMap; -use bytes::{Bytes, BytesMut}; +use bytes::{Buf, Bytes, BytesMut}; use futures::Stream; use portable_atomic::AtomicU128; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, - sync::mpsc::{error::TrySendError, Receiver, Sender}, + sync::mpsc::{ + error::{TryRecvError, TrySendError}, + Receiver, Sender, + }, }; use crate::{ @@ -38,6 +39,9 @@ use crate::{ ChannelId, Id, Outcome, }; +/// An item in the outgoing queue. +/// +/// Requests are not transformed into messages in the queue to conserve limited request ID space. #[derive(Debug)] enum QueuedItem { Request { @@ -65,6 +69,7 @@ enum QueuedItem { } impl QueuedItem { + /// Retrieves the payload from the queued item. fn into_payload(self) -> Option { match self { QueuedItem::Request { payload, .. } => payload, @@ -93,25 +98,34 @@ pub enum CoreError { data.map(|b| b.len()).unwrap_or(0)) ] RemoteReportedError { header: Header, data: Option }, - + /// The remote peer violated the protocol and has been sent an error. #[error("error sent to peer")] - ErrorSent(OutgoingFrame), + RemoteProtocolViolation(OutgoingFrame), #[error("local protocol violation")] /// Local protocol violation - caller violated the crate's API. LocalProtocolViolation(#[from] LocalProtocolViolation), - /// Bug - mapping of `IoID` to request broke. - #[error("internal error: IO id disappeared on channel {channel}, id {id}")] - IoIdDisappeared { channel: ChannelId, id: Id }, /// Internal error. /// - /// An error occured that should be impossible, thus this indicative of a bug in the library. + /// An error occured that should be impossible, this is indicative of a bug in this library. #[error("internal consistency error: {0}")] ConsistencyError(&'static str), } +/// An IO layer request ID. +/// +/// Request layer IO IDs are unique across the program per request that originated from the local +/// endpoint. They are used to allow for buffering large numbers of items without exhausting the +/// pool of protocol level request IDs, which are limited to `u16`s. #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] pub struct IoId(u128); +/// IO layer for the juliet protocol. +/// +/// The central structure for the IO layer built on top the juliet protocol, once instance per +/// connection. It manages incoming (`R`) and outgoing (`W`) transports, as well as a queue for +/// items to be sent. +/// +/// Once instantiated, a continuously polling of [`IoCore::next_event`] is expected. pub struct IoCore { /// The actual protocol state. juliet: JulietProtocol, @@ -122,26 +136,34 @@ pub struct IoCore { writer: W, /// Read buffer for incoming data. buffer: BytesMut, - /// How many more bytes are required until the next par - bytes_until_next_parse: usize, + /// How many more bytes are required until the next parse. + /// + /// Used to ensure we don't attempt to parse too often. + next_parse_at: usize, + /// Whether or not we are shutting down due to an error. + shutting_down_due_to_err: bool, - /// The frame in the process of being sent, maybe be partially transferred. + /// The frame in the process of being sent, which may be partially transferred already. current_frame: Option, - /// The header of the current multi-frame transfer. + /// The headers of active current multi-frame transfers. active_multi_frame: [Option
; N], - /// Frames that can be sent next. + /// Frames waiting to be sent. ready_queue: VecDeque, - /// Messages queued that are not yet ready to send. + /// Messages that are not yet ready to be sent. wait_queue: [VecDeque; N], - /// Receiver for new items to send. + /// Receiver for new messages to be queued. receiver: Receiver, /// Mapping for outgoing requests, mapping internal IDs to public ones. request_map: BiMap, - /// Shared data across handles and core. + /// Shared data across handles and [`IoCore`]. shared: Arc>, } +/// Shared data between an [`IoCore`] handle and the core itself. +/// +/// Its core functionality is to determine whether or not there is room to buffer additional +/// messages. struct IoShared { /// Number of requests already buffered per channel. requests_buffered: [AtomicUsize; N], @@ -149,44 +171,59 @@ struct IoShared { requests_limit: [usize; N], } -impl IoShared { - fn next_id(&self) -> IoId { - todo!() - } -} - +/// Events produced by the IO layer. #[derive(Debug)] +#[must_use] pub enum IoEvent { + /// A new request has been received. + /// + /// Eventually a received request must be handled by one of the following: + /// + /// * A response sent (through [`IoHandle::enqueue_response`]). + /// * A response cancellation sent (through [`IoHandle::enqueue_response_cancellation`]). + /// * The connection being closed, either regularly or due to an error, on either side. + /// * The reception of an [`IoEvent::RequestCancellation`] with the same ID and channel. NewRequest { + /// Channel the new request arrived on. channel: ChannelId, + /// Request ID (set by peer). id: Id, + /// The payload provided with the request. payload: Option, }, + /// A response has been received. + /// + /// For every [`IoId`] there will eventually be exactly either one [`IoEvent::ReceivedResponse`] + /// or [`IoEvent::ReceivedCancellationResponse`], unless the connection is shutdown beforehand. ReceivedResponse { + /// The local request ID for which the response was sent. io_id: IoId, + /// The payload of the response. payload: Option, }, - RequestCancellation { - id: Id, - }, - ResponseCancellation { + /// A response cancellation has been received. + /// + /// Indicates the peer is not going to answer the request. + /// + /// For every [`IoId`] there will eventually be exactly either one [`IoEvent::ReceivedResponse`] + /// or [`IoEvent::ReceivedCancellationResponse`], unless the connection is shutdown beforehand. + ReceivedCancellationResponse { + /// The local request ID which will not be answered. io_id: IoId, }, - - RemoteClosed, - LocalShutdown, + /// The connection was cleanly shut down without any error. + /// + /// Clients must no longer call [`IoCore::next_event`] after receiving this and drop the + /// [`IoCore`] instead, likely causing the underlying transports to be closed as well. + Closed, } impl IoEvent { + /// Determine whether or not the received [`IoEvent`] is an [`IoEvent::Closed`], which indicated + /// we should stop polling the connection. #[inline(always)] - fn should_shutdown(&self) -> bool { - match self { - IoEvent::NewRequest { .. } - | IoEvent::ReceivedResponse { .. } - | IoEvent::RequestCancellation { .. } - | IoEvent::ResponseCancellation { .. } => false, - IoEvent::RemoteClosed | IoEvent::LocalShutdown => true, - } + fn is_closed(&self) -> bool { + matches!(self, IoEvent::Closed) } } @@ -195,57 +232,81 @@ where R: AsyncRead + Unpin, W: AsyncWrite + Unpin, { + /// Retrieve the next event. + /// + /// This is the central loop of the IO layer. It polls all underlying transports and reads/write + /// if data is available, until enough processing has been done to produce an [`IoEvent`]. Thus + /// any application using the IO layer should loop over calling this function, or call + /// `[IoCore::into_stream]` to process it using the standard futures stream interface. pub async fn next_event(&mut self) -> Result { loop { - if self.bytes_until_next_parse == 0 { - match self.juliet.process_incoming(&mut self.buffer) { - Outcome::Incomplete(n) => { - // Simply reset how many bytes we need until the next parse. - self.bytes_until_next_parse = n.get() as usize; - } - Outcome::Fatal(err) => self.handle_fatal_read_err(err), - Outcome::Success(successful_read) => { - return self.handle_completed_read(successful_read); + if self.next_parse_at <= self.buffer.remaining() { + // Simplify reasoning about this code. + self.next_parse_at = 0; + + loop { + match self.juliet.process_incoming(&mut self.buffer) { + Outcome::Incomplete(n) => { + // Simply reset how many bytes we need until the next parse. + self.next_parse_at = self.buffer.remaining() + n.get() as usize; + break; + } + Outcome::Fatal(err_msg) => { + // The remote messed up, begin shutting down due to an error. + self.inject_error(err_msg); + + // Stop processing incoming data. + break; + } + Outcome::Success(successful_read) => { + // Check if we have produced an event. + if let Some(event) = self.handle_completed_read(successful_read)? { + return Ok(event); + } + + // We did not produce anything useful from the read, which may be due to + // redundant cancellations/responses. Continue parsing if data is + // available. + continue; + } } } } tokio::select! { - biased; // We do not need the bias, but we want to avoid randomness overhead. + biased; // We actually like the bias, avoid the randomness overhead. - // Writing outgoing data: + // Writing outgoing data if there is more to send. write_result = self.writer.write_all_buf(self.current_frame.as_mut().unwrap()) , if self.current_frame.is_some() => { write_result.map_err(CoreError::WriteFailed)?; + // If we just finished sending an error, it's time to exit. let frame_sent = self.current_frame.take().unwrap(); - if frame_sent.header().is_error() { // We finished sending an error frame, time to exit. - return Err(CoreError::ErrorSent(frame_sent)); + return Err(CoreError::RemoteProtocolViolation(frame_sent)); } - // Prepare the following frame, if any. + // Otherwise prepare the next frame. self.current_frame = self.ready_next_frame()?; } - // Reading incoming data: - read_result = read_atleast_bytesmut(&mut self.reader, &mut self.buffer, self.bytes_until_next_parse) => { - // Our read function will not return before `bytes_until_next_parse` has - // completed. + // Reading incoming data. + read_result = read_until_bytesmut(&mut self.reader, &mut self.buffer, self.next_parse_at), if !self.shutting_down_due_to_err => { + // Our read function will not return before `read_until_bytesmut` has completed. let bytes_read = read_result.map_err(CoreError::ReadFailed)?; if bytes_read == 0 { // Remote peer hung up. - return Ok(IoEvent::RemoteClosed); + return Ok(IoEvent::Closed); } - self.bytes_until_next_parse = self.bytes_until_next_parse.saturating_sub(bytes_read); - // Fall through to start of loop, which parses data read. } - incoming = self.receiver.recv() => { + // Processing locally queued things. + incoming = self.receiver.recv(), if !self.shutting_down_due_to_err => { let mut modified_channels = HashSet::new(); match incoming { @@ -253,16 +314,63 @@ where self.handle_incoming_item(item, &mut modified_channels)?; } None => { - return Ok(IoEvent::RemoteClosed); + // If the receiver was closed it means that we locally shut down the + // connection. + return Ok(IoEvent::Closed); } } - todo!("loop over remainder"); + loop { + match self.receiver.try_recv() { + Ok(item) => { + self.handle_incoming_item(item, &mut modified_channels)?; + } + Err(TryRecvError::Disconnected) => { + // While processing incoming items, the last handle was closed. + return Ok(IoEvent::Closed); + } + Err(TryRecvError::Empty) => { + // Everything processed. + break + } + } + } + + // All incoming items have been handled, now process the wait queue of every + // channel we just touched. + for channel in modified_channels { + self.process_wait_queue(channel)?; + } } } } } + /// Ensures the next message sent is an error message. + /// + /// Clears all buffers related to sending and closes the local incoming channel. + fn inject_error(&mut self, err_msg: OutgoingMessage) { + // Stop accepting any new local data. + self.receiver.close(); + + // Ensure the error message is the next frame sent. + self.ready_queue.push_front(err_msg.frames()); + + // Set the error state. + self.shutting_down_due_to_err = true; + + // We do not continue parsing, ever again. + self.next_parse_at = usize::MAX; + + // Clear queues and data structures that are no longer needed. + self.buffer.clear(); + self.ready_queue.clear(); + self.request_map.clear(); + for queue in &mut self.wait_queue { + queue.clear(); + } + } + fn handle_completed_read( &mut self, completed_read: CompletedRead, @@ -304,15 +412,11 @@ where Ok(self .request_map .remove_by_right(&(channel, id)) - .map(|(io_id, _)| IoEvent::ResponseCancellation { io_id })) + .map(|(io_id, _)| IoEvent::ReceivedCancellationResponse { io_id })) } } } - fn handle_fatal_read_err(&mut self, err: OutgoingMessage) { - todo!() - } - fn handle_incoming_item( &mut self, mut item: QueuedItem, @@ -409,15 +513,15 @@ where Ok(()) } - /// Clears a potentially finished frame and returns the best next frame to send. + /// Clears a potentially finished frame and returns the next frame to send. /// /// Returns `None` if no frames are ready to be sent. Note that there may be frames waiting /// that cannot be sent due them being multi-frame messages when there already is a multi-frame - /// message in progress, or request limits being hit. + /// message in progress, or request limits are being hit. fn ready_next_frame(&mut self) -> Result, LocalProtocolViolation> { debug_assert!(self.current_frame.is_none()); // Must be guaranteed by caller. - // Try to fetch a frame from the run queue. If there is nothing, we are stuck for now. + // Try to fetch a frame from the ready queue. If there is nothing, we are stuck for now. let (frame, more) = match self.ready_queue.pop_front() { Some(item) => item, None => return Ok(None), @@ -425,11 +529,11 @@ where // Queue is empty, there is no next frame. .next_owned(self.juliet.max_frame_size()); - // If there are more frames after this one, schedule them again. + // If there are more frames after this one, schedule the remainder. if let Some(next_frame_iter) = more { self.ready_queue.push_back(next_frame_iter); } else { - // No additional frames, check if we are about to finish a multi-frame transfer. + // No additional frames, check if sending the next frame will finish a multi-frame. let about_to_finish = frame.header(); if let Some(ref active_multi) = self.active_multi_frame[about_to_finish.channel().get() as usize] @@ -503,7 +607,7 @@ where let rv = this.next_event().await; // Check if this was the last event. We shut down on close or any error. - if rv.as_ref().map(IoEvent::should_shutdown).unwrap_or(true) { + if rv.as_ref().map(IoEvent::is_closed).unwrap_or(true) { Some((rv, None)) } else { Some((rv, Some(this))) @@ -683,14 +787,14 @@ impl IoHandle { /// Read bytes into a buffer. /// /// Similar to [`AsyncReadExt::read_buf`], except it performs multiple read calls until at least -/// `target` bytes have been read. +/// `target` bytes are in `buf`. /// /// Will automatically retry if an [`io::ErrorKind::Interrupted`] is returned. /// /// # Cancellation safety /// /// This function is cancellation safe in the same way that [`AsyncReadExt::read_buf`] is. -async fn read_atleast_bytesmut<'a, R>( +async fn read_until_bytesmut<'a, R>( reader: &'a mut R, buf: &mut BytesMut, target: usize, @@ -701,7 +805,7 @@ where let mut bytes_read = 0; buf.reserve(target); - while bytes_read < target { + while buf.remaining() < target { match reader.read_buf(buf).await { Ok(n) => bytes_read += n, Err(err) => { From 1b8e121657abfff7bb8453bdaa1717d3542cb40a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Jul 2023 13:23:41 +0200 Subject: [PATCH 505/735] juliet: Cleanup event incoming and outgoing processing functions of `IoCore` --- juliet/src/io.rs | 211 +++++++++++++++++++++++------------------------ 1 file changed, 103 insertions(+), 108 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 53c5d7483a..c25088149e 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -44,26 +44,43 @@ use crate::{ /// Requests are not transformed into messages in the queue to conserve limited request ID space. #[derive(Debug)] enum QueuedItem { + /// An outgoing request. Request { - io_id: IoId, + /// Channel to send it out on. channel: ChannelId, + /// [`IoId`] mapped to the request. + io_id: IoId, + /// The requests payload. payload: Option, }, + /// Cancellation of one of our own requests. + RequestCancellation { + /// [`IoId`] mapped to the request that should be cancelled. + io_id: IoId, + }, + /// Outgoing response to a received request. Response { + /// Channel the original request was received on. channel: ChannelId, + /// Id of the original request. id: Id, + /// Payload to send along with the response. payload: Option, }, - RequestCancellation { - io_id: IoId, - }, + /// A cancellation response. ResponseCancellation { + /// Channel the original request was received on. channel: ChannelId, + /// Id of the original request. id: Id, }, + /// An error. Error { + /// Channel to send error on. channel: ChannelId, + /// Id to send with error. id: Id, + /// Error payload. payload: Bytes, }, } @@ -108,7 +125,7 @@ pub enum CoreError { /// /// An error occured that should be impossible, this is indicative of a bug in this library. #[error("internal consistency error: {0}")] - ConsistencyError(&'static str), + InternalError(&'static str), } /// An IO layer request ID. @@ -155,6 +172,8 @@ pub struct IoCore { receiver: Receiver, /// Mapping for outgoing requests, mapping internal IDs to public ones. request_map: BiMap, + /// A set of channels whose wait queues should be checked again for data to send. + dirty_channels: HashSet, /// Shared data across handles and [`IoCore`]. shared: Arc>, @@ -191,6 +210,12 @@ pub enum IoEvent { /// The payload provided with the request. payload: Option, }, + RequestCancelled { + /// Channel the original request arrived on. + channel: ChannelId, + /// Request ID (set by peer). + id: Id, + }, /// A response has been received. /// /// For every [`IoId`] there will eventually be exactly either one [`IoEvent::ReceivedResponse`] @@ -240,6 +265,8 @@ where /// `[IoCore::into_stream]` to process it using the standard futures stream interface. pub async fn next_event(&mut self) -> Result { loop { + self.process_dirty_channels()?; + if self.next_parse_at <= self.buffer.remaining() { // Simplify reasoning about this code. self.next_parse_at = 0; @@ -260,14 +287,7 @@ where } Outcome::Success(successful_read) => { // Check if we have produced an event. - if let Some(event) = self.handle_completed_read(successful_read)? { - return Ok(event); - } - - // We did not produce anything useful from the read, which may be due to - // redundant cancellations/responses. Continue parsing if data is - // available. - continue; + return self.handle_completed_read(successful_read); } } } @@ -307,11 +327,9 @@ where // Processing locally queued things. incoming = self.receiver.recv(), if !self.shutting_down_due_to_err => { - let mut modified_channels = HashSet::new(); - match incoming { Some(item) => { - self.handle_incoming_item(item, &mut modified_channels)?; + self.handle_incoming_item(item)?; } None => { // If the receiver was closed it means that we locally shut down the @@ -323,7 +341,7 @@ where loop { match self.receiver.try_recv() { Ok(item) => { - self.handle_incoming_item(item, &mut modified_channels)?; + self.handle_incoming_item(item)?; } Err(TryRecvError::Disconnected) => { // While processing incoming items, the last handle was closed. @@ -335,12 +353,6 @@ where } } } - - // All incoming items have been handled, now process the wait queue of every - // channel we just touched. - for channel in modified_channels { - self.process_wait_queue(channel)?; - } } } } @@ -353,9 +365,6 @@ where // Stop accepting any new local data. self.receiver.close(); - // Ensure the error message is the next frame sent. - self.ready_queue.push_front(err_msg.frames()); - // Set the error state. self.shutting_down_due_to_err = true; @@ -369,32 +378,35 @@ where for queue in &mut self.wait_queue { queue.clear(); } + + // Ensure the error message is the next frame sent. + self.ready_queue.push_front(err_msg.frames()); } + /// Processes a completed read into a potential event. fn handle_completed_read( &mut self, completed_read: CompletedRead, - ) -> Result, CoreError> { + ) -> Result { match completed_read { CompletedRead::ErrorReceived { header, data } => { // We've received an error from the peer, they will be closing the connection. - return Err(CoreError::RemoteReportedError { header, data }); + Err(CoreError::RemoteReportedError { header, data }) } - CompletedRead::NewRequest { channel, id, payload, } => { // Requests have their id passed through, since they are not given an `IoId`. - return Ok(Some(IoEvent::NewRequest { + Ok(IoEvent::NewRequest { channel, id, payload, - })); + }) } CompletedRead::RequestCancellation { channel, id } => { - todo!("ensure the request is cancelled - do we need an io-id as well?") + Ok(IoEvent::RequestCancelled { channel, id }) } // It is not our job to ensure we do not receive duplicate responses or cancellations; @@ -403,110 +415,91 @@ where channel, id, payload, - } => Ok(self + } => self .request_map .remove_by_right(&(channel, id)) - .map(move |(io_id, _)| IoEvent::ReceivedResponse { io_id, payload })), + .ok_or(CoreError::InternalError( + "juliet protocol should have dropped response after cancellation", + )) + .map(move |(io_id, _)| IoEvent::ReceivedResponse { io_id, payload }), CompletedRead::ResponseCancellation { channel, id } => { // Responses are mapped to the respective `IoId`. - Ok(self - .request_map + self.request_map .remove_by_right(&(channel, id)) - .map(|(io_id, _)| IoEvent::ReceivedCancellationResponse { io_id })) + .ok_or(CoreError::InternalError( + "juliet protocol should not have allowed fictitious response through", + )) + .map(|(io_id, _)| IoEvent::ReceivedCancellationResponse { io_id }) } } } - fn handle_incoming_item( - &mut self, - mut item: QueuedItem, - channels_to_process: &mut HashSet, - ) -> Result<(), LocalProtocolViolation> { - let ready = item_is_ready(&item, &self.juliet, &self.active_multi_frame); + /// Handles a new item to send out that arrived through the incoming channel. + fn handle_incoming_item(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { + // Check if the item is sendable immediately. + if let Some(channel) = item_should_wait(&item, &self.juliet, &self.active_multi_frame) { + self.wait_queue[channel.get() as usize].push_back(item); + return Ok(()); + } + + self.send_to_ready_queue(item) + } + /// Sends an item directly to the ready queue, causing it to be sent out eventually. + fn send_to_ready_queue(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { match item { QueuedItem::Request { io_id, channel, - ref mut payload, + payload, } => { - // Check if we can eagerly schedule, saving a trip through the wait queue. - if ready { - // The item is ready, we can directly schedule it and skip the wait queue. - let msg = self.juliet.create_request(channel, payload.take())?; + // "Chase" our own requests here -- if the request was still in the wait queue, + // we can cancel it by checking if the `IoId` has been removed in the meantime. + // + // Note that this only cancels multi-frame requests. + if self.request_map.contains_left(&io_id) { + let msg = self.juliet.create_request(channel, payload)?; let id = msg.header().id(); + self.request_map.insert(io_id, (channel, id)); self.ready_queue.push_back(msg.frames()); - self.request_map - .insert(io_id, (channel, RequestState::Sent { id })); - } else { - // Item not ready, put it into the wait queue. - self.wait_queue[channel.get() as usize].push_back(item); - self.request_map - .insert(io_id, (channel, RequestState::Waiting)); - channels_to_process.insert(channel); } } - QueuedItem::Response { - id, - channel, - ref mut payload, - } => { - if ready { - // The item is ready, we can directly schedule it and skip the wait queue. - if let Some(msg) = self.juliet.create_response(channel, id, payload.take())? { - self.ready_queue.push_back(msg.frames()) + QueuedItem::RequestCancellation { io_id } => { + if let Some((_, (channel, id))) = self.request_map.remove_by_left(&io_id) { + if let Some(msg) = self.juliet.cancel_request(channel, id)? { + self.ready_queue.push_back(msg.frames()); } } else { - // Item not ready, put it into the wait queue. - self.wait_queue[channel.get() as usize].push_back(item); - channels_to_process.insert(channel); + // Already cancelled or answered by peer - no need to do anything. } } - QueuedItem::RequestCancellation { io_id } => { - let (channel, state) = self.request_map.get(&io_id).expect("request map corrupted"); - match state { - RequestState::Waiting => { - // The request is in the wait or run queue, cancel it during processing. - self.request_map - .insert(io_id, (*channel, RequestState::CancellationPending)); - } - RequestState::Allocated { id } => { - // Create the cancellation, but don't send it, since we caught it in time. - self.juliet.cancel_request(*channel, *id)?; - self.request_map - .insert(io_id, (*channel, RequestState::CancellationPending)); - } - RequestState::Sent { id } => { - // Request has already been sent, schedule the cancellation message. We can - // bypass the wait queue, since cancellations are always valid to add. We'll - // also add it to the front of the queue to ensure they arrive in time. - if let Some(msg) = self.juliet.cancel_request(*channel, *id)? { - self.ready_queue.push_front(msg.frames()); - } - } - RequestState::CancellationPending - | RequestState::CancellationSent { id: _ } => { - // Someone copied the `IoId`, we got a duplicated cancellation. Do nothing. - } + // `juliet` already tracks whether we still need to send the cancellation. + // Unlike requests, we do not attempt to fish responses out of the queue, + // cancelling a response after it has been created should be rare. + QueuedItem::Response { + id, + channel, + payload, + } => { + if let Some(msg) = self.juliet.create_response(channel, id, payload)? { + self.ready_queue.push_back(msg.frames()) } } QueuedItem::ResponseCancellation { id, channel } => { - // `juliet` already tracks whether we still need to send the cancellation. - // Unlike requests, we do not attempt to fish responses out of the queue, - // cancelling a response after it has been created should be rare. if let Some(msg) = self.juliet.cancel_response(channel, id)? { self.ready_queue.push_back(msg.frames()); } } + + // Errors go straight to the front of the line. QueuedItem::Error { id, channel, payload, } => { - // Errors go straight to the front of the line. - let msg = self.juliet.custom_error(channel, id, payload)?; - self.ready_queue.push_front(msg.frames()); + let err_msg = self.juliet.custom_error(channel, id, payload)?; + self.inject_error(err_msg); } } @@ -544,7 +537,7 @@ where self.active_multi_frame[about_to_finish.channel().get() as usize] = None; // There is a chance another multi-frame messages became ready now. - self.process_wait_queue(about_to_finish.channel())?; + self.dirty_channels.insert(about_to_finish.channel()); } } } @@ -553,7 +546,9 @@ where } /// Process the wait queue, moving messages that are ready to be sent to the ready queue. - fn process_wait_queue(&mut self, channel: ChannelId) -> Result<(), LocalProtocolViolation> { + fn process_dirty_channels(&mut self) -> Result<(), LocalProtocolViolation> { + // TODO: process dirty channels + // // TODO: Rewrite, factoring out functions from `handle_incoming`. // let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; @@ -616,11 +611,11 @@ where } } -fn item_is_ready( +fn item_should_wait( item: &QueuedItem, juliet: &JulietProtocol, active_multi_frame: &[Option
; N], -) -> bool { +) -> Option { let (payload, channel) = match item { QueuedItem::Request { channel, payload, .. @@ -630,7 +625,7 @@ fn item_is_ready( .allowed_to_send_request(*channel) .expect("should not be called with invalid channel") { - return false; + return Some(*channel); } (payload, channel) @@ -642,7 +637,7 @@ fn item_is_ready( // Other messages are always ready. QueuedItem::RequestCancellation { .. } | QueuedItem::ResponseCancellation { .. } - | QueuedItem::Error { .. } => return true, + | QueuedItem::Error { .. } => return None, }; let mut active_multi_frame = active_multi_frame[channel.get() as usize]; @@ -652,13 +647,13 @@ fn item_is_ready( if active_multi_frame.is_some() { if let Some(payload) = payload { if payload_is_multi_frame(juliet.max_frame_size(), payload.len()) { - return false; + return Some(*channel); } } } // Otherwise, this should be a legitimate add to the run queue. - true + None } struct IoHandle { From bc61b70d3059061ec66582d39f571f4950e061b9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Jul 2023 16:52:22 +0200 Subject: [PATCH 506/735] juliet: Use a `retain_mut` base impl when processing dirty channels --- juliet/src/io.rs | 102 +++++++++++++++++++---------------------------- 1 file changed, 42 insertions(+), 60 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index c25088149e..c078bd1f91 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -8,6 +8,7 @@ //! //! See [`IoCore`] for more information about how to use this module. +use ::std::mem; use std::{ collections::{HashSet, VecDeque}, io, @@ -442,25 +443,28 @@ where return Ok(()); } - self.send_to_ready_queue(item) + self.send_to_ready_queue(&mut item) } /// Sends an item directly to the ready queue, causing it to be sent out eventually. - fn send_to_ready_queue(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { + /// + /// `item` is passed as a mutable reference for compatibility with functions like `retain_mut`, + /// but will be left with all payloads removed, thus should likely not be reused. + fn send_to_ready_queue(&mut self, item: &mut QueuedItem) -> Result<(), LocalProtocolViolation> { match item { QueuedItem::Request { io_id, channel, - payload, + ref mut payload, } => { // "Chase" our own requests here -- if the request was still in the wait queue, // we can cancel it by checking if the `IoId` has been removed in the meantime. // // Note that this only cancels multi-frame requests. if self.request_map.contains_left(&io_id) { - let msg = self.juliet.create_request(channel, payload)?; + let msg = self.juliet.create_request(*channel, payload.take())?; let id = msg.header().id(); - self.request_map.insert(io_id, (channel, id)); + self.request_map.insert(*io_id, (*channel, id)); self.ready_queue.push_back(msg.frames()); } } @@ -480,14 +484,14 @@ where QueuedItem::Response { id, channel, - payload, + ref mut payload, } => { - if let Some(msg) = self.juliet.create_response(channel, id, payload)? { + if let Some(msg) = self.juliet.create_response(*channel, *id, payload.take())? { self.ready_queue.push_back(msg.frames()) } } QueuedItem::ResponseCancellation { id, channel } => { - if let Some(msg) = self.juliet.cancel_response(channel, id)? { + if let Some(msg) = self.juliet.cancel_response(*channel, *id)? { self.ready_queue.push_back(msg.frames()); } } @@ -498,7 +502,9 @@ where channel, payload, } => { - let err_msg = self.juliet.custom_error(channel, id, payload)?; + let err_msg = self + .juliet + .custom_error(*channel, *id, mem::take(payload))?; self.inject_error(err_msg); } } @@ -514,19 +520,19 @@ where fn ready_next_frame(&mut self) -> Result, LocalProtocolViolation> { debug_assert!(self.current_frame.is_none()); // Must be guaranteed by caller. - // Try to fetch a frame from the ready queue. If there is nothing, we are stuck for now. - let (frame, more) = match self.ready_queue.pop_front() { + // Try to fetch a frame from the ready queue. If there is nothing, we are stuck until the + // next time the wait queue is processed or new data arrives. + let (frame, additional_frames) = match self.ready_queue.pop_front() { Some(item) => item, None => return Ok(None), } - // Queue is empty, there is no next frame. .next_owned(self.juliet.max_frame_size()); // If there are more frames after this one, schedule the remainder. - if let Some(next_frame_iter) = more { + if let Some(next_frame_iter) = additional_frames { self.ready_queue.push_back(next_frame_iter); } else { - // No additional frames, check if sending the next frame will finish a multi-frame. + // No additional frames. Check if sending the next frame finishes a multi-frame message. let about_to_finish = frame.header(); if let Some(ref active_multi) = self.active_multi_frame[about_to_finish.channel().get() as usize] @@ -545,53 +551,29 @@ where Ok(Some(frame)) } - /// Process the wait queue, moving messages that are ready to be sent to the ready queue. + /// Process the wait queue of all channels marked dirty, promoting messages that are ready to be + /// sent to the ready queue. fn process_dirty_channels(&mut self) -> Result<(), LocalProtocolViolation> { - // TODO: process dirty channels - - // // TODO: Rewrite, factoring out functions from `handle_incoming`. - - // let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; - // let wait_queue = &mut self.wait_queue[channel.get() as usize]; - // for _ in 0..(wait_queue.len()) { - // // Note: We do not use `drain` here, since we want to modify in-place. `retain` is also - // // not used, since it does not allow taking out items by-value. An alternative - // // might be sorting the list and splitting off the candidates instead. - // let item = wait_queue - // .pop_front() - // .expect("did not expect to run out of items"); - - // if item_is_ready(channel, &item, &self.juliet, active_multi_frame) { - // match item { - // QueuedItem::Request { payload } => { - // let msg = self.juliet.create_request(channel, payload)?; - // self.ready_queue.push_back(msg.frames()); - // } - // QueuedItem::Response { io_id: id, payload } => { - // if let Some(msg) = self.juliet.create_response(channel, id, payload)? { - // self.ready_queue.push_back(msg.frames()); - // } - // } - // QueuedItem::RequestCancellation { io_id: id } => { - // if let Some(msg) = self.juliet.cancel_request(channel, id)? { - // self.ready_queue.push_back(msg.frames()); - // } - // } - // QueuedItem::ResponseCancellation { io_id: id } => { - // if let Some(msg) = self.juliet.cancel_response(channel, id)? { - // self.ready_queue.push_back(msg.frames()); - // } - // } - // QueuedItem::Error { id, payload } => { - // let msg = self.juliet.custom_error(channel, id, payload)?; - // // Errors go into the front. - // self.ready_queue.push_front(msg.frames()); - // } - // } - // } else { - // wait_queue.push_back(item); - // } - // } + for channel in self.dirty_channels.drain() { + let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; + let wait_queue = &mut self.wait_queue[channel.get() as usize]; + + let mut err = None; + wait_queue.retain_mut(|item| { + if err.is_some() { + return true; + } + + if item_should_wait(item, &self.juliet, &self.active_multi_frame).is_some() { + true + } else { + if let Err(protocol_violation) = self.send_to_ready_queue(item) { + err = Some(protocol_violation); + } + false + } + }); + } Ok(()) } From d0ea996ce5e8c29f0061d0fac1bb7372de5fef24 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Jul 2023 17:22:19 +0200 Subject: [PATCH 507/735] juliet: Finish cleanup pass over IO layer --- juliet/src/io.rs | 61 ++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 54 insertions(+), 7 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index c078bd1f91..229081c216 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -184,6 +184,7 @@ pub struct IoCore { /// /// Its core functionality is to determine whether or not there is room to buffer additional /// messages. +#[derive(Debug)] struct IoShared { /// Number of requests already buffered per channel. requests_buffered: [AtomicUsize; N], @@ -558,6 +559,14 @@ where let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; let wait_queue = &mut self.wait_queue[channel.get() as usize]; + // The code below is not as bad it looks complexity wise, anticipating two common cases: + // + // 1. A multi-frame read has finished, with capacity for requests to spare. Only + // multi-frame requests will be waiting in the wait queue, so we will likely pop the + // first item, only scanning the rest once. + // 2. One or more requests finished, so we also have a high chance of picking the first + // few requests out of the queue. + let mut err = None; wait_queue.retain_mut(|item| { if err.is_some() { @@ -573,11 +582,19 @@ where false } }); + + // Report protocol violations upwards. + if let Some(err) = err { + return Err(err); + }; } Ok(()) } + /// Converts the [`IoCore`] into a stream. + /// + /// The stream will continuously call [`IoCore::next_event`] until the connection is fn into_stream(self) -> impl Stream> { futures::stream::unfold(Some(self), |state| async { let mut this = state?; @@ -593,6 +610,7 @@ where } } +/// Determines whether an item is ready to be moved from the wait queue from the ready queue. fn item_should_wait( item: &QueuedItem, juliet: &JulietProtocol, @@ -638,13 +656,24 @@ fn item_should_wait( None } +/// A handle to the input queue to the [`IoCore`]. +/// +/// The handle is roughly three pointers in size and can be cloned at will. Dropping the last handle +/// will cause the [`IoCore`] to shutdown and close the connection. +#[derive(Clone, Debug)] struct IoHandle { + /// Shared portion of the [`IoCore`], required for backpressuring onto clients. shared: Arc>, /// Sender for queue items. sender: Sender, + /// The next generation [`IoId`]. + /// + /// IoIDs are just generated sequentially until they run out (which at 1 billion at second takes + /// roughly 10^22 years). next_io_id: Arc, } +/// An error that can occur while attempting to enqueue an item. #[derive(Debug, Error)] enum EnqueueError { /// The IO core was shut down, there is no connection anymore to send through. @@ -653,12 +682,13 @@ enum EnqueueError { /// The request limit was hit, try again. #[error("request limit hit")] RequestLimitHit(Option), - /// API violation. + /// Violation of local invariants, this is likely a bug in this library or the calling code. #[error("local protocol violation during enqueueing")] LocalProtocolViolation(#[from] LocalProtocolViolation), } impl EnqueueError { + /// Creates an [`EnqueueError`] from a failure to enqueue an item. #[inline(always)] fn from_failed_send(err: TrySendError) -> Self { match err { @@ -671,17 +701,20 @@ impl EnqueueError { } impl IoHandle { + /// Enqueues a new request. + /// + /// Returns an [`IoId`] that can be used to refer to the request. fn enqueue_request( &mut self, channel: ChannelId, payload: Option, ) -> Result { - bounds_check::(channel)?; + bounds_check_channel::(channel)?; let count = &self.shared.requests_buffered[channel.get() as usize]; let limit = self.shared.requests_limit[channel.get() as usize]; - // TODO: relax ordering from `SeqCst`. + // TODO: Relax ordering from `SeqCst`. match count.fetch_update(Ordering::SeqCst, Ordering::SeqCst, |current| { if current < limit { Some(current + 1) @@ -690,7 +723,6 @@ impl IoHandle { } }) { Ok(_prev) => { - // Does not overflow before at least 10^18 zettabytes have been sent. let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); self.sender @@ -706,6 +738,9 @@ impl IoHandle { } } + /// Enqueues a response to an existing request. + /// + /// Callers are supposed to send only one response or cancellation per incoming request. fn enqueue_response( &self, channel: ChannelId, @@ -721,30 +756,41 @@ impl IoHandle { .map_err(EnqueueError::from_failed_send) } + /// Enqueues a cancellation to an existing outgoing request. + /// + /// If the request has already been answered or cancelled, the enqueue cancellation will + /// ultimately have no effect. fn enqueue_request_cancellation( &self, channel: ChannelId, io_id: IoId, ) -> Result<(), EnqueueError> { - bounds_check::(channel)?; + bounds_check_channel::(channel)?; self.sender .try_send(QueuedItem::RequestCancellation { io_id }) .map_err(EnqueueError::from_failed_send) } + /// Enqueues a cancellation as a response to a received request. + /// + /// Callers are supposed to send only one response or cancellation per incoming request. fn enqueue_response_cancellation( &self, channel: ChannelId, id: Id, ) -> Result<(), EnqueueError> { - bounds_check::(channel)?; + bounds_check_channel::(channel)?; self.sender .try_send(QueuedItem::ResponseCancellation { id, channel }) .map_err(EnqueueError::from_failed_send) } + /// Enqueus an error. + /// + /// Enqueuing an error causes the [`IoCore`] to begin shutting down immediately, only making an + /// effort to finish sending the error before doing so. fn enqueue_error( &self, channel: ChannelId, @@ -797,8 +843,9 @@ where Ok(bytes_read) } +/// Bounds checks a channel ID. #[inline(always)] -fn bounds_check(channel: ChannelId) -> Result<(), LocalProtocolViolation> { +fn bounds_check_channel(channel: ChannelId) -> Result<(), LocalProtocolViolation> { if channel.get() as usize >= N { Err(LocalProtocolViolation::InvalidChannel(channel)) } else { From fdd3f2687d989b4e8fc66bf6ed3fe597492f53d8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Jul 2023 17:34:57 +0200 Subject: [PATCH 508/735] juliet: Change interface to return `Result, _>` in `next_event`, simplifying error type --- juliet/src/io.rs | 43 ++++++++++++++++--------------------------- 1 file changed, 16 insertions(+), 27 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 229081c216..0d2561e39b 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -238,20 +238,6 @@ pub enum IoEvent { /// The local request ID which will not be answered. io_id: IoId, }, - /// The connection was cleanly shut down without any error. - /// - /// Clients must no longer call [`IoCore::next_event`] after receiving this and drop the - /// [`IoCore`] instead, likely causing the underlying transports to be closed as well. - Closed, -} - -impl IoEvent { - /// Determine whether or not the received [`IoEvent`] is an [`IoEvent::Closed`], which indicated - /// we should stop polling the connection. - #[inline(always)] - fn is_closed(&self) -> bool { - matches!(self, IoEvent::Closed) - } } impl IoCore @@ -265,7 +251,9 @@ where /// if data is available, until enough processing has been done to produce an [`IoEvent`]. Thus /// any application using the IO layer should loop over calling this function, or call /// `[IoCore::into_stream]` to process it using the standard futures stream interface. - pub async fn next_event(&mut self) -> Result { + /// + /// Polling of this function should continue until `Err(_)` or `Ok(None)` is returned. + pub async fn next_event(&mut self) -> Result, CoreError> { loop { self.process_dirty_channels()?; @@ -289,7 +277,7 @@ where } Outcome::Success(successful_read) => { // Check if we have produced an event. - return self.handle_completed_read(successful_read); + return self.handle_completed_read(successful_read).map(Some); } } } @@ -321,7 +309,7 @@ where if bytes_read == 0 { // Remote peer hung up. - return Ok(IoEvent::Closed); + return Ok(None); } // Fall through to start of loop, which parses data read. @@ -336,7 +324,7 @@ where None => { // If the receiver was closed it means that we locally shut down the // connection. - return Ok(IoEvent::Closed); + return Ok(None); } } @@ -347,7 +335,7 @@ where } Err(TryRecvError::Disconnected) => { // While processing incoming items, the last handle was closed. - return Ok(IoEvent::Closed); + return Ok(None); } Err(TryRecvError::Empty) => { // Everything processed. @@ -594,17 +582,18 @@ where /// Converts the [`IoCore`] into a stream. /// - /// The stream will continuously call [`IoCore::next_event`] until the connection is + /// The stream will continuously call [`IoCore::next_event`] until the connection is closed or + /// an error has been produced. fn into_stream(self) -> impl Stream> { futures::stream::unfold(Some(self), |state| async { let mut this = state?; - let rv = this.next_event().await; - - // Check if this was the last event. We shut down on close or any error. - if rv.as_ref().map(IoEvent::is_closed).unwrap_or(true) { - Some((rv, None)) - } else { - Some((rv, Some(this))) + match this.next_event().await { + // Regular event -- keep both the state and return it. + Ok(Some(event)) => Some((Ok(event), Some(this))), + // Connection closed - we can immediately stop the stream. + Ok(None) => None, + // Error sent - return the error, but stop polling afterwards. + Err(err) => Some((Err(err), None)), } }) } From 8716bdca2535b9fee527bd0447888022a96c5079 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Jul 2023 17:43:19 +0200 Subject: [PATCH 509/735] juliet: Cleanup remaining issues except `process_dirty_channels` of IO layer --- juliet/src/io.rs | 9 ++++----- juliet/src/protocol.rs | 2 ++ juliet/src/rpc.rs | 2 ++ 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 0d2561e39b..aad82849ad 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -113,7 +113,7 @@ pub enum CoreError { header.channel(), header.id(), header.error_kind(), - data.map(|b| b.len()).unwrap_or(0)) + data.as_ref().map(|b| b.len()).unwrap_or(0)) ] RemoteReportedError { header: Header, data: Option }, /// The remote peer violated the protocol and has been sent an error. @@ -425,7 +425,7 @@ where } /// Handles a new item to send out that arrived through the incoming channel. - fn handle_incoming_item(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { + fn handle_incoming_item(&mut self, mut item: QueuedItem) -> Result<(), LocalProtocolViolation> { // Check if the item is sendable immediately. if let Some(channel) = item_should_wait(&item, &self.juliet, &self.active_multi_frame) { self.wait_queue[channel.get() as usize].push_back(item); @@ -543,8 +543,7 @@ where /// Process the wait queue of all channels marked dirty, promoting messages that are ready to be /// sent to the ready queue. fn process_dirty_channels(&mut self) -> Result<(), LocalProtocolViolation> { - for channel in self.dirty_channels.drain() { - let active_multi_frame = &self.active_multi_frame[channel.get() as usize]; + for channel in mem::take(&mut self.dirty_channels) { let wait_queue = &mut self.wait_queue[channel.get() as usize]; // The code below is not as bad it looks complexity wise, anticipating two common cases: @@ -629,7 +628,7 @@ fn item_should_wait( | QueuedItem::Error { .. } => return None, }; - let mut active_multi_frame = active_multi_frame[channel.get() as usize]; + let active_multi_frame = active_multi_frame[channel.get() as usize]; // Check if we cannot schedule due to the message being multi-frame and there being a // multi-frame send in progress: diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 0733bb682a..09e223b30c 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -654,6 +654,7 @@ impl JulietProtocol { Some(payload) => { // Message is complete. return Success(CompletedRead::NewRequest { + channel: header.channel(), id: header.id(), payload: Some(payload.freeze()), }); @@ -695,6 +696,7 @@ impl JulietProtocol { Some(payload) => { // Message is complete. return Success(CompletedRead::ReceivedResponse { + channel: header.channel(), id: header.id(), payload: Some(payload.freeze()), }); diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 4704070b35..857eeccc3f 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -1,3 +1,5 @@ +#![allow(dead_code, unused)] + //! RPC layer. //! //! Typically the outermost layer of the `juliet` stack is the RPC layer, which combines the From a2a70814bb487b8b1d23cf56711eed86af8456bc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 10 Jul 2023 17:50:38 +0200 Subject: [PATCH 510/735] juliet: Satisfy borrow checker in wait queue processing --- juliet/src/io.rs | 36 ++++++++++++++---------------------- 1 file changed, 14 insertions(+), 22 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index aad82849ad..2b04ecdd65 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -10,7 +10,7 @@ use ::std::mem; use std::{ - collections::{HashSet, VecDeque}, + collections::{BTreeSet, VecDeque}, io, sync::{ atomic::{AtomicUsize, Ordering}, @@ -174,7 +174,7 @@ pub struct IoCore { /// Mapping for outgoing requests, mapping internal IDs to public ones. request_map: BiMap, /// A set of channels whose wait queues should be checked again for data to send. - dirty_channels: HashSet, + dirty_channels: BTreeSet, /// Shared data across handles and [`IoCore`]. shared: Arc>, @@ -542,9 +542,9 @@ where /// Process the wait queue of all channels marked dirty, promoting messages that are ready to be /// sent to the ready queue. - fn process_dirty_channels(&mut self) -> Result<(), LocalProtocolViolation> { - for channel in mem::take(&mut self.dirty_channels) { - let wait_queue = &mut self.wait_queue[channel.get() as usize]; + fn process_dirty_channels(&mut self) -> Result<(), CoreError> { + while let Some(channel) = self.dirty_channels.pop_first() { + let wait_queue_len = self.wait_queue[channel.get() as usize].len(); // The code below is not as bad it looks complexity wise, anticipating two common cases: // @@ -554,26 +554,18 @@ where // 2. One or more requests finished, so we also have a high chance of picking the first // few requests out of the queue. - let mut err = None; - wait_queue.retain_mut(|item| { - if err.is_some() { - return true; - } + for _ in 0..(wait_queue_len) { + let mut item = self.wait_queue[channel.get() as usize].pop_front().ok_or( + CoreError::InternalError("did not expect wait_queue to disappear"), + )?; - if item_should_wait(item, &self.juliet, &self.active_multi_frame).is_some() { - true + if item_should_wait(&item, &self.juliet, &self.active_multi_frame).is_some() { + // Put it right back into the queue. + self.wait_queue[channel.get() as usize].push_back(item); } else { - if let Err(protocol_violation) = self.send_to_ready_queue(item) { - err = Some(protocol_violation); - } - false + self.send_to_ready_queue(&mut item)?; } - }); - - // Report protocol violations upwards. - if let Some(err) = err { - return Err(err); - }; + } } Ok(()) From 0d52b94bdfc6466471cc8f66eee92cb702ab37a4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 12:44:36 +0200 Subject: [PATCH 511/735] juliet: Use a semaphore instead of homegrown solution to track memory usage --- juliet/src/io.rs | 218 ++++++++++++++++++++++++++--------------------- 1 file changed, 123 insertions(+), 95 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 2b04ecdd65..02f171320a 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -8,14 +8,10 @@ //! //! See [`IoCore`] for more information about how to use this module. -use ::std::mem; use std::{ collections::{BTreeSet, VecDeque}, io, - sync::{ - atomic::{AtomicUsize, Ordering}, - Arc, - }, + sync::{atomic::Ordering, Arc}, }; use bimap::BiMap; @@ -25,9 +21,9 @@ use portable_atomic::AtomicU128; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, - sync::mpsc::{ - error::{TryRecvError, TrySendError}, - Receiver, Sender, + sync::{ + mpsc::{error::TryRecvError, UnboundedReceiver, UnboundedSender}, + OwnedSemaphorePermit, Semaphore, TryAcquireError, }, }; @@ -53,6 +49,8 @@ enum QueuedItem { io_id: IoId, /// The requests payload. payload: Option, + /// The semaphore permit for the request. + permit: OwnedSemaphorePermit, }, /// Cancellation of one of our own requests. RequestCancellation { @@ -170,7 +168,7 @@ pub struct IoCore { /// Messages that are not yet ready to be sent. wait_queue: [VecDeque; N], /// Receiver for new messages to be queued. - receiver: Receiver, + receiver: UnboundedReceiver, /// Mapping for outgoing requests, mapping internal IDs to public ones. request_map: BiMap, /// A set of channels whose wait queues should be checked again for data to send. @@ -180,16 +178,18 @@ pub struct IoCore { shared: Arc>, } -/// Shared data between an [`IoCore`] handle and the core itself. -/// -/// Its core functionality is to determine whether or not there is room to buffer additional -/// messages. +/// Shared data between a handles and the core itself. #[derive(Debug)] +#[repr(transparent)] struct IoShared { - /// Number of requests already buffered per channel. - requests_buffered: [AtomicUsize; N], - /// Maximum allowed number of requests to buffer per channel. - requests_limit: [usize; N], + /// Tracks how many requests are in the wait queue. + /// + /// Tickets are freed once the item is in the wait queue, thus the semaphore permit count + /// controls how many requests can be buffered in addition to those already permitted due to the + /// protocol. + /// + /// The maximum number of available tickets must be >= 1 for the IO layer to function. + buffered_requests: [Arc; N], } /// Events produced by the IO layer. @@ -425,37 +425,41 @@ where } /// Handles a new item to send out that arrived through the incoming channel. - fn handle_incoming_item(&mut self, mut item: QueuedItem) -> Result<(), LocalProtocolViolation> { + fn handle_incoming_item(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { // Check if the item is sendable immediately. if let Some(channel) = item_should_wait(&item, &self.juliet, &self.active_multi_frame) { self.wait_queue[channel.get() as usize].push_back(item); return Ok(()); } - self.send_to_ready_queue(&mut item) + self.send_to_ready_queue(item) } /// Sends an item directly to the ready queue, causing it to be sent out eventually. /// /// `item` is passed as a mutable reference for compatibility with functions like `retain_mut`, /// but will be left with all payloads removed, thus should likely not be reused. - fn send_to_ready_queue(&mut self, item: &mut QueuedItem) -> Result<(), LocalProtocolViolation> { + fn send_to_ready_queue(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { match item { QueuedItem::Request { io_id, channel, - ref mut payload, + payload, + permit, } => { // "Chase" our own requests here -- if the request was still in the wait queue, // we can cancel it by checking if the `IoId` has been removed in the meantime. // // Note that this only cancels multi-frame requests. if self.request_map.contains_left(&io_id) { - let msg = self.juliet.create_request(*channel, payload.take())?; + let msg = self.juliet.create_request(channel, payload)?; let id = msg.header().id(); - self.request_map.insert(*io_id, (*channel, id)); + self.request_map.insert(io_id, (channel, id)); self.ready_queue.push_back(msg.frames()); } + + // Explicitly drop permit, allowing another request to be buffered on the channel. + drop(permit); } QueuedItem::RequestCancellation { io_id } => { if let Some((_, (channel, id))) = self.request_map.remove_by_left(&io_id) { @@ -473,14 +477,14 @@ where QueuedItem::Response { id, channel, - ref mut payload, + payload, } => { - if let Some(msg) = self.juliet.create_response(*channel, *id, payload.take())? { + if let Some(msg) = self.juliet.create_response(channel, id, payload)? { self.ready_queue.push_back(msg.frames()) } } QueuedItem::ResponseCancellation { id, channel } => { - if let Some(msg) = self.juliet.cancel_response(*channel, *id)? { + if let Some(msg) = self.juliet.cancel_response(channel, id)? { self.ready_queue.push_back(msg.frames()); } } @@ -491,9 +495,7 @@ where channel, payload, } => { - let err_msg = self - .juliet - .custom_error(*channel, *id, mem::take(payload))?; + let err_msg = self.juliet.custom_error(channel, id, payload)?; self.inject_error(err_msg); } } @@ -555,7 +557,7 @@ where // few requests out of the queue. for _ in 0..(wait_queue_len) { - let mut item = self.wait_queue[channel.get() as usize].pop_front().ok_or( + let item = self.wait_queue[channel.get() as usize].pop_front().ok_or( CoreError::InternalError("did not expect wait_queue to disappear"), )?; @@ -563,7 +565,7 @@ where // Put it right back into the queue. self.wait_queue[channel.get() as usize].push_back(item); } else { - self.send_to_ready_queue(&mut item)?; + self.send_to_ready_queue(item)?; } } } @@ -636,16 +638,16 @@ fn item_should_wait( None } -/// A handle to the input queue to the [`IoCore`]. +/// A handle to the input queue to the [`IoCore`] that allows sending requests and responses. /// /// The handle is roughly three pointers in size and can be cloned at will. Dropping the last handle /// will cause the [`IoCore`] to shutdown and close the connection. #[derive(Clone, Debug)] -struct IoHandle { +pub struct RequestHandle { /// Shared portion of the [`IoCore`], required for backpressuring onto clients. shared: Arc>, /// Sender for queue items. - sender: Sender, + sender: UnboundedSender, /// The next generation [`IoId`]. /// /// IoIDs are just generated sequentially until they run out (which at 1 billion at second takes @@ -653,137 +655,163 @@ struct IoHandle { next_io_id: Arc, } +#[derive(Clone, Debug)] +#[repr(transparent)] +pub struct Handle { + /// Sender for queue items. + sender: UnboundedSender, +} + /// An error that can occur while attempting to enqueue an item. #[derive(Debug, Error)] -enum EnqueueError { +pub enum EnqueueError { /// The IO core was shut down, there is no connection anymore to send through. #[error("IO closed")] Closed(Option), - /// The request limit was hit, try again. + /// The request limit for locally buffered requests was hit, try again. #[error("request limit hit")] - RequestLimitHit(Option), + BufferLimitHit(Option), /// Violation of local invariants, this is likely a bug in this library or the calling code. #[error("local protocol violation during enqueueing")] LocalProtocolViolation(#[from] LocalProtocolViolation), } -impl EnqueueError { - /// Creates an [`EnqueueError`] from a failure to enqueue an item. - #[inline(always)] - fn from_failed_send(err: TrySendError) -> Self { - match err { - // Note: The `Full` state should never happen unless our queue sizing is incorrect, we - // sweep this under the rug here. - TrySendError::Full(item) => EnqueueError::RequestLimitHit(item.into_payload()), - TrySendError::Closed(item) => EnqueueError::Closed(item.into_payload()), - } - } -} +impl RequestHandle { + /// Attempts to enqueues a new request. + /// + /// Returns an [`IoId`] that can be used to refer to the request if successful. The operation + /// may fail if there is no buffer available for another request. + pub fn try_enqueue_request( + &mut self, + channel: ChannelId, + payload: Option, + ) -> Result { + bounds_check_channel::(channel)?; + + let permit = match self.shared.buffered_requests[channel.get() as usize] + .clone() + .try_acquire_owned() + { + Ok(permit) => permit, + + Err(TryAcquireError::Closed) => return Err(EnqueueError::Closed(payload)), + Err(TryAcquireError::NoPermits) => return Err(EnqueueError::BufferLimitHit(payload)), + }; + + let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); + + self.sender + .send(QueuedItem::Request { + io_id, + channel, + payload, + permit, + }) + .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload()))?; -impl IoHandle { + Ok(io_id) + } /// Enqueues a new request. /// - /// Returns an [`IoId`] that can be used to refer to the request. - fn enqueue_request( + /// Returns an [`IoId`] that can be used to refer to the request if successful. The operation + /// may fail if there is no buffer available for another request. + pub async fn enqueue_request( &mut self, channel: ChannelId, payload: Option, ) -> Result { bounds_check_channel::(channel)?; - let count = &self.shared.requests_buffered[channel.get() as usize]; - let limit = self.shared.requests_limit[channel.get() as usize]; + let permit = match self.shared.buffered_requests[channel.get() as usize] + .clone() + .acquire_owned() + .await + { + Ok(permit) => permit, + Err(_) => return Err(EnqueueError::Closed(payload)), + }; - // TODO: Relax ordering from `SeqCst`. - match count.fetch_update(Ordering::SeqCst, Ordering::SeqCst, |current| { - if current < limit { - Some(current + 1) - } else { - None - } - }) { - Ok(_prev) => { - let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); - - self.sender - .try_send(QueuedItem::Request { - io_id, - channel, - payload, - }) - .map_err(EnqueueError::from_failed_send)?; - Ok(io_id) - } - Err(_prev) => Err(EnqueueError::RequestLimitHit(payload)), + let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); + + self.sender + .send(QueuedItem::Request { + io_id, + channel, + payload, + permit, + }) + .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload()))?; + + Ok(io_id) + } + + #[inline(always)] + pub fn downgrade(self) -> Handle { + Handle { + sender: self.sender, } } +} +impl Handle { /// Enqueues a response to an existing request. /// /// Callers are supposed to send only one response or cancellation per incoming request. - fn enqueue_response( + pub fn enqueue_response( &self, channel: ChannelId, id: Id, payload: Option, ) -> Result<(), EnqueueError> { self.sender - .try_send(QueuedItem::Response { + .send(QueuedItem::Response { channel, id, payload, }) - .map_err(EnqueueError::from_failed_send) + .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload())) } /// Enqueues a cancellation to an existing outgoing request. /// /// If the request has already been answered or cancelled, the enqueue cancellation will /// ultimately have no effect. - fn enqueue_request_cancellation( - &self, - channel: ChannelId, - io_id: IoId, - ) -> Result<(), EnqueueError> { - bounds_check_channel::(channel)?; - + pub fn enqueue_request_cancellation(&self, io_id: IoId) -> Result<(), EnqueueError> { self.sender - .try_send(QueuedItem::RequestCancellation { io_id }) - .map_err(EnqueueError::from_failed_send) + .send(QueuedItem::RequestCancellation { io_id }) + .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload())) } /// Enqueues a cancellation as a response to a received request. /// /// Callers are supposed to send only one response or cancellation per incoming request. - fn enqueue_response_cancellation( + pub fn enqueue_response_cancellation( &self, channel: ChannelId, id: Id, ) -> Result<(), EnqueueError> { - bounds_check_channel::(channel)?; - self.sender - .try_send(QueuedItem::ResponseCancellation { id, channel }) - .map_err(EnqueueError::from_failed_send) + .send(QueuedItem::ResponseCancellation { id, channel }) + .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload())) } /// Enqueus an error. /// /// Enqueuing an error causes the [`IoCore`] to begin shutting down immediately, only making an /// effort to finish sending the error before doing so. - fn enqueue_error( + pub fn enqueue_error( &self, channel: ChannelId, id: Id, payload: Bytes, ) -> Result<(), EnqueueError> { self.sender - .try_send(QueuedItem::Error { + .send(QueuedItem::Error { id, channel, payload, }) - .map_err(EnqueueError::from_failed_send) + .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload())) } } From 590f94306501a2c1129a0b8c32ebb31c5e33b0ec Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 13:09:07 +0200 Subject: [PATCH 512/735] juliet: Wrote RPC scaffolding including backpressure propagation --- juliet/src/io.rs | 20 +-- juliet/src/protocol.rs | 23 ++++ juliet/src/rpc.rs | 279 +++++++++++++++++++++++++++++++++-------- 3 files changed, 250 insertions(+), 72 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 02f171320a..f146dcd5b0 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -686,8 +686,6 @@ impl RequestHandle { channel: ChannelId, payload: Option, ) -> Result { - bounds_check_channel::(channel)?; - let permit = match self.shared.buffered_requests[channel.get() as usize] .clone() .try_acquire_owned() @@ -719,16 +717,14 @@ impl RequestHandle { &mut self, channel: ChannelId, payload: Option, - ) -> Result { - bounds_check_channel::(channel)?; - + ) -> Result> { let permit = match self.shared.buffered_requests[channel.get() as usize] .clone() .acquire_owned() .await { Ok(permit) => permit, - Err(_) => return Err(EnqueueError::Closed(payload)), + Err(_) => return Err(payload), }; let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); @@ -740,7 +736,7 @@ impl RequestHandle { payload, permit, }) - .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload()))?; + .map_err(|send_err| send_err.0.into_payload())?; Ok(io_id) } @@ -850,13 +846,3 @@ where Ok(bytes_read) } - -/// Bounds checks a channel ID. -#[inline(always)] -fn bounds_check_channel(channel: ChannelId) -> Result<(), LocalProtocolViolation> { - if channel.get() as usize >= N { - Err(LocalProtocolViolation::InvalidChannel(channel)) - } else { - Ok(()) - } -} diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 09e223b30c..03915067cd 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -64,6 +64,7 @@ pub struct JulietProtocol { /// Typically a single instance of the [`ProtocolBuilder`] can be kept around in an application /// handling multiple connections, as its `build()` method can be reused for every new connection /// instance. +#[derive(Debug)] pub struct ProtocolBuilder { /// Configuration for every channel. channel_config: [ChannelConfiguration; N], @@ -71,6 +72,15 @@ pub struct ProtocolBuilder { max_frame_size: u32, } +impl Default for ProtocolBuilder { + fn default() -> Self { + Self { + channel_config: [Default::default(); N], + max_frame_size: 4096, + } + } +} + impl ProtocolBuilder { /// Update the channel configuration for a given channel. pub fn channel_config(mut self, channel: ChannelId, config: ChannelConfiguration) -> Self { @@ -88,6 +98,19 @@ impl ProtocolBuilder { max_frame_size: self.max_frame_size, } } + + /// Sets the maximum frame size. + /// + /// # Panics + /// + /// Will panic if the maximum size is too small to holder a header, payload length and at least + /// one byte of payload. + pub fn max_frame_size(mut self, max_frame_size: u32) -> Self { + assert!(max_frame_size as usize > Header::SIZE + Varint32::MAX_LEN); + + self.max_frame_size = max_frame_size; + self + } } /// Per-channel data. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 857eeccc3f..d4bf8c3271 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -1,101 +1,199 @@ -#![allow(dead_code, unused)] - //! RPC layer. //! //! Typically the outermost layer of the `juliet` stack is the RPC layer, which combines the //! underlying IO and protocol primites into a convenient, type safe RPC system. -use std::{ - pin::Pin, - task::{Context, Poll}, - time::Duration, -}; +use std::{cell::OnceCell, collections::HashMap, sync::Arc, time::Duration}; use bytes::Bytes; -use futures::Stream; -use crate::ChannelId; +use thiserror::Error; +use tokio::{ + io::{AsyncRead, AsyncWrite}, + sync::{mpsc::Receiver, Notify}, +}; + +use crate::{ + io::{CoreError, EnqueueError, Handle, IoCore, IoEvent, IoId, RequestHandle}, + protocol::{LocalProtocolViolation, ProtocolBuilder}, + ChannelId, Id, +}; -/// Creates a new set of RPC client (for making RPC calls) and RPC server (for handling calls). -pub fn make_rpc(transport: T) -> (JulietRpcClient, JulietRpcServer) { - // TODO: Consider allowing for zero-to-many clients to be created. - todo!() +#[derive(Default)] +pub struct RpcBuilder { + protocol: ProtocolBuilder, +} + +impl RpcBuilder { + fn new(protocol: ProtocolBuilder) -> Self { + RpcBuilder { protocol } + } + + /// Update the channel configuration for a given channel. + pub fn build( + &self, + reader: R, + writer: W, + ) -> (JulietRpcClient, JulietRpcServer) { + todo!() + } } /// Juliet RPC client. /// /// The client is used to create new RPC calls. -pub struct JulietRpcClient { +pub struct JulietRpcClient { // TODO } /// Juliet RPC Server. /// /// The server's sole purpose is to handle incoming RPC calls. -pub struct JulietRpcServer { - // TODO +pub struct JulietRpcServer { + core: IoCore, + handle: Handle, + pending: HashMap>, + new_requests: Receiver<(IoId, Arc)>, } -pub struct JulietRpcRequestBuilder { - // TODO +#[derive(Debug)] +struct RequestGuardInner { + /// The returned response of the request. + outcome: OnceCell, RequestError>>, + /// A notifier for when the result arrives. + ready: Option, +} + +type RequestOutcome = Arc>>; + +pub struct JulietRpcRequestBuilder { + request_handle: RequestHandle, + channel: ChannelId, + payload: Option, + timeout: Duration, // TODO: Properly handle. } -impl JulietRpcClient { +impl JulietRpcClient { /// Creates a new RPC request builder. /// /// The returned builder can be used to create a single request on the given channel. - fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { + fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { todo!() } } -pub struct IncomingRequest { - // TODO -} +#[derive(Debug, Error)] pub enum RpcServerError { - // TODO + #[error(transparent)] + CoreError(#[from] CoreError), } -impl Stream for JulietRpcServer { - type Item = Result; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - todo!() +impl JulietRpcServer +where + R: AsyncRead + Unpin, + W: AsyncWrite + Unpin, +{ + async fn next_request(&mut self) -> Result, RpcServerError> { + if let Some(event) = self.core.next_event().await? { + match event { + IoEvent::NewRequest { + channel, + id, + payload, + } => Ok(Some(IncomingRequest { + channel, + id, + payload, + handle: Some(self.handle.clone()), + })), + IoEvent::RequestCancelled { channel, id } => todo!(), + IoEvent::ReceivedResponse { io_id, payload } => todo!(), + IoEvent::ReceivedCancellationResponse { io_id } => todo!(), + } + } else { + Ok(None) + } } } -pub struct RequestHandle; - -impl JulietRpcRequestBuilder { +impl JulietRpcRequestBuilder { /// Sets the payload for the request. - pub fn with_payload(self, payload: Bytes) -> Self { - todo!() + pub fn with_payload(mut self, payload: Bytes) -> Self { + self.payload = Some(payload); + self } /// Sets the timeout for the request. - pub fn with_timeout(self, timeout: Duration) -> Self { - todo!() + pub fn with_timeout(mut self, timeout: Duration) -> Self { + self.timeout = timeout; + self } /// Schedules a new request on an outgoing channel. /// /// Blocks until space to store it is available. - pub async fn queue_for_sending(self) -> RequestHandle { - todo!() + pub async fn queue_for_sending(mut self) -> RequestGuard { + let outcome = OnceCell::new(); + + let inner = match self + .request_handle + .enqueue_request(self.channel, self.payload) + .await + { + Ok(io_id) => RequestGuardInner { + outcome, + ready: Some(Notify::new()), + }, + Err(payload) => { + outcome.set(Err(RequestError::RemoteClosed(payload))); + RequestGuardInner { + outcome, + ready: None, + } + } + }; + + RequestGuard { + inner: Arc::new(inner), + } } /// Try to schedule a new request. /// - /// Fails if local buffer is exhausted. - pub fn try_queue_for_sending(self) -> Result { - todo!() + /// Fails if local buffer is full. + pub fn try_queue_for_sending(mut self) -> Result { + match self + .request_handle + .try_enqueue_request(self.channel, self.payload) + { + Ok(io_id) => Ok(RequestGuard { + inner: Arc::new(RequestGuardInner { + outcome: OnceCell::new(), + ready: Some(Notify::new()), + }), + }), + Err(EnqueueError::Closed(payload)) => { + // Drop the payload, give a handle that is already "expired". + Ok(RequestGuard::error(RequestError::RemoteClosed(payload))) + } + Err(EnqueueError::LocalProtocolViolation(violation)) => { + Ok(RequestGuard::error(RequestError::Error(violation))) + } + Err(EnqueueError::BufferLimitHit(payload)) => Err(JulietRpcRequestBuilder { + request_handle: self.request_handle, + channel: self.channel, + payload, + timeout: self.timeout, + }), + } } } +#[derive(Debug)] pub enum RequestError { - /// Remote closed due to some error, could not send. - RemoteError, + /// Remote closed, could not send. + RemoteClosed(Option), /// Local timeout. TimedOut, /// Remote said "no". @@ -103,11 +201,27 @@ pub enum RequestError { /// Cancelled locally. Cancelled, /// API misuse - Error, + Error(LocalProtocolViolation), +} + +pub struct RequestGuard { + inner: Arc, } -// Note: On drop, `RequestHandle` cancels itself. -impl RequestHandle { +impl RequestGuard { + fn error(error: RequestError) -> Self { + let outcome = OnceCell::new(); + outcome + .set(Err(error)) + .expect("newly constructed cell should always be empty"); + RequestGuard { + inner: Arc::new(RequestGuardInner { + outcome, + ready: None, + }), + } + } + /// Cancels the request, causing it to not be sent if it is still in the queue. /// /// No response will be available for the request, any call to `wait_for_finish` will result in an error. @@ -138,40 +252,95 @@ impl RequestHandle { } } -impl Drop for RequestHandle { +impl Drop for RequestGuard { fn drop(&mut self) { todo!("on drop, cancel request") } } +/// An incoming request from a peer. +/// +/// Every request should be answered using either the [`IncomingRequest::cancel()`] or +/// [`IncomingRequest::respond()`] methods. If dropped, [`IncomingRequest::cancel()`] is called +/// automatically. +#[derive(Debug)] +pub struct IncomingRequest { + /// Channel the request was sent on. + channel: ChannelId, + /// Id chosen by peer for the request. + id: Id, + /// Payload attached to request. + payload: Option, + /// Handle to [`IoCore`] to send a reply. + handle: Option, +} + impl IncomingRequest { /// Returns a reference to the payload, if any. + #[inline(always)] pub fn payload(&self) -> &Option { - todo!() + &self.payload } /// Returns a reference to the payload, if any. /// /// Typically used in conjunction with [`Option::take()`]. - pub fn payload_mut(&self) -> &mut Option { - todo!() + #[inline(always)] + pub fn payload_mut(&mut self) -> &mut Option { + &mut self.payload } /// Enqueue a response to be sent out. - pub fn respond(self, payload: Bytes) { - todo!() + #[inline] + pub fn respond(mut self, payload: Option) { + if let Some(handle) = self.handle.take() { + if let Err(err) = handle.enqueue_response(self.channel, self.id, payload) { + match err { + EnqueueError::Closed(_) => { + // Do nothing, just discard the response. + } + EnqueueError::BufferLimitHit(_) => { + // TODO: Add seperate type to avoid this. + unreachable!("cannot hit request limit when responding") + } + EnqueueError::LocalProtocolViolation(_) => { + todo!("what to do with this?") + } + } + } + } } /// Cancel the request. /// /// This will cause a cancellation to be sent back. - pub fn cancel(self) { - todo!() + #[inline(always)] + pub fn cancel(mut self) { + self.do_cancel(); + } + + fn do_cancel(&mut self) { + if let Some(handle) = self.handle.take() { + if let Err(err) = handle.enqueue_response_cancellation(self.channel, self.id) { + match err { + EnqueueError::Closed(_) => { + // Do nothing, just discard the response. + } + EnqueueError::BufferLimitHit(_) => { + unreachable!("cannot hit request limit when responding") + } + EnqueueError::LocalProtocolViolation(_) => { + todo!("what to do with this?") + } + } + } + } } } impl Drop for IncomingRequest { + #[inline(always)] fn drop(&mut self) { - todo!("send cancel response") + self.do_cancel(); } } From df76aa3e64e831d0d58bfab61fa593d6deb0258a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 14:52:28 +0200 Subject: [PATCH 513/735] juliet: Make RPC layer ferry new requests across, only reserving space, before passing them to the IO layer --- juliet/src/io.rs | 174 +++++++++++++++++++++++++++++++++------------- juliet/src/rpc.rs | 168 ++++++++++++++++++++++++++------------------ 2 files changed, 229 insertions(+), 113 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index f146dcd5b0..55e850b28c 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -22,8 +22,8 @@ use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, sync::{ - mpsc::{error::TryRecvError, UnboundedReceiver, UnboundedSender}, - OwnedSemaphorePermit, Semaphore, TryAcquireError, + mpsc::{self, error::TryRecvError, UnboundedReceiver, UnboundedSender}, + AcquireError, OwnedSemaphorePermit, Semaphore, TryAcquireError, }, }; @@ -31,7 +31,7 @@ use crate::{ header::Header, protocol::{ payload_is_multi_frame, CompletedRead, FrameIter, JulietProtocol, LocalProtocolViolation, - OutgoingFrame, OutgoingMessage, + OutgoingFrame, OutgoingMessage, ProtocolBuilder, }, ChannelId, Id, Outcome, }; @@ -240,6 +240,74 @@ pub enum IoEvent { }, } +/// A builder for the [`IoCore`]. +#[derive(Debug)] +pub struct IoCoreBuilder { + /// The builder for the underlying protocol. + protocol: ProtocolBuilder, + /// Number of additional requests to buffer, per channel. + buffer_size: [usize; N], +} + +impl IoCoreBuilder { + /// Creates a new builder for an [`IoCore`]. + #[inline] + pub fn new(protocol: ProtocolBuilder) -> Self { + Self { + protocol, + buffer_size: [1; N], + } + } + + /// Sets the wait queue buffer size for a given channel. + /// + /// # Panics + /// + /// Will panic if given an invalid channel or a size less than one. + pub fn buffer_size(mut self, channel: ChannelId, size: usize) -> Self { + assert!(size > 0, "cannot have a memory buffer size of zero"); + + self.buffer_size[channel.get() as usize] = size; + + self + } + + /// Builds a new [`IoCore`] with a single request handle. + pub fn build(&self, reader: R, writer: W) -> (IoCore, RequestHandle) { + let (sender, receiver) = mpsc::unbounded_channel(); + let shared = Arc::new(IoShared { + buffered_requests: array_init::map_array_init(&self.buffer_size, |&sz| { + Arc::new(Semaphore::new(sz)) + }), + }); + + let core = IoCore { + juliet: self.protocol.build(), + reader, + writer, + buffer: BytesMut::new(), + next_parse_at: 0, + shutting_down_due_to_err: false, + current_frame: None, + active_multi_frame: [Default::default(); N], + ready_queue: Default::default(), + wait_queue: array_init::array_init(|_| Default::default()), + receiver, + request_map: Default::default(), + dirty_channels: Default::default(), + shared: shared.clone(), + }; + + let handle = RequestHandle { + shared, + sender, + next_io_id: Default::default(), + }; + + (core, handle) + } +} + impl IoCore where R: AsyncRead + Unpin, @@ -676,58 +744,79 @@ pub enum EnqueueError { LocalProtocolViolation(#[from] LocalProtocolViolation), } +#[derive(Debug)] +pub struct RequestTicket { + channel: ChannelId, + permit: OwnedSemaphorePermit, + io_id: IoId, +} + +pub enum ReservationError { + NoBufferSpaceAvailable, + Closed, +} + impl RequestHandle { - /// Attempts to enqueues a new request. - /// - /// Returns an [`IoId`] that can be used to refer to the request if successful. The operation - /// may fail if there is no buffer available for another request. - pub fn try_enqueue_request( - &mut self, + /// Attempts to reserve a new request ticket. + #[inline] + pub fn try_reserve_request( + &self, channel: ChannelId, - payload: Option, - ) -> Result { - let permit = match self.shared.buffered_requests[channel.get() as usize] + ) -> Result { + match self.shared.buffered_requests[channel.get() as usize] .clone() .try_acquire_owned() { - Ok(permit) => permit, - - Err(TryAcquireError::Closed) => return Err(EnqueueError::Closed(payload)), - Err(TryAcquireError::NoPermits) => return Err(EnqueueError::BufferLimitHit(payload)), - }; + Ok(permit) => Ok(RequestTicket { + channel, + permit, + io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), + }), - let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); + Err(TryAcquireError::Closed) => Err(ReservationError::Closed), + Err(TryAcquireError::NoPermits) => Err(ReservationError::NoBufferSpaceAvailable), + } + } - self.sender - .send(QueuedItem::Request { - io_id, + /// Reserves a new request ticket. + #[inline] + pub async fn reserve_request(&self, channel: ChannelId) -> Option { + self.shared.buffered_requests[channel.get() as usize] + .clone() + .acquire_owned() + .await + .map(|permit| RequestTicket { channel, - payload, permit, + io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), }) - .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload()))?; + .ok() + } - Ok(io_id) + #[inline(always)] + pub fn downgrade(self) -> Handle { + Handle { + sender: self.sender, + } } +} + +impl Handle { /// Enqueues a new request. /// - /// Returns an [`IoId`] that can be used to refer to the request if successful. The operation - /// may fail if there is no buffer available for another request. - pub async fn enqueue_request( + /// Returns an [`IoId`] that can be used to refer to the request if successful. Returns the + /// payload as an error if the underlying IO layer has been closed. + #[inline] + pub fn enqueue_request( &mut self, - channel: ChannelId, + RequestTicket { + channel, + permit, + io_id, + }: RequestTicket, payload: Option, ) -> Result> { - let permit = match self.shared.buffered_requests[channel.get() as usize] - .clone() - .acquire_owned() - .await - { - Ok(permit) => permit, - Err(_) => return Err(payload), - }; - - let io_id = IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)); + // TODO: Panic if given semaphore ticket from wrong instance? self.sender .send(QueuedItem::Request { @@ -741,15 +830,6 @@ impl RequestHandle { Ok(io_id) } - #[inline(always)] - pub fn downgrade(self) -> Handle { - Handle { - sender: self.sender, - } - } -} - -impl Handle { /// Enqueues a response to an existing request. /// /// Callers are supposed to send only one response or cancellation per incoming request. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index d4bf8c3271..e3c0b34228 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -1,7 +1,7 @@ //! RPC layer. //! -//! Typically the outermost layer of the `juliet` stack is the RPC layer, which combines the -//! underlying IO and protocol primites into a convenient, type safe RPC system. +//! The outermost layer of the `juliet` stack, combines the underlying IO and protocol primites into +//! a convenient, type safe RPC system. use std::{cell::OnceCell, collections::HashMap, sync::Arc, time::Duration}; @@ -10,32 +10,57 @@ use bytes::Bytes; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncWrite}, - sync::{mpsc::Receiver, Notify}, + sync::{ + mpsc::{self, Receiver, UnboundedReceiver, UnboundedSender}, + Notify, + }, }; use crate::{ - io::{CoreError, EnqueueError, Handle, IoCore, IoEvent, IoId, RequestHandle}, - protocol::{LocalProtocolViolation, ProtocolBuilder}, + io::{ + CoreError, EnqueueError, Handle, IoCore, IoCoreBuilder, IoEvent, IoId, RequestHandle, + RequestTicket, ReservationError, + }, + protocol::LocalProtocolViolation, ChannelId, Id, }; -#[derive(Default)] +/// Builder for a new RPC interface. pub struct RpcBuilder { - protocol: ProtocolBuilder, + /// The IO core builder used. + core: IoCoreBuilder, } impl RpcBuilder { - fn new(protocol: ProtocolBuilder) -> Self { - RpcBuilder { protocol } + /// Constructs a new RPC builder. + /// + /// The builder can be reused to create instances for multiple connections. + pub fn new(core: IoCoreBuilder) -> Self { + RpcBuilder { core } } - /// Update the channel configuration for a given channel. + /// Creates new RPC client and server instances. pub fn build( &self, reader: R, writer: W, ) -> (JulietRpcClient, JulietRpcServer) { - todo!() + let (core, core_handle) = self.core.build(reader, writer); + + let (new_request_sender, new_requests_receiver) = mpsc::unbounded_channel(); + + let client = JulietRpcClient { + new_request_sender, + request_handle: core_handle.clone(), + }; + let server = JulietRpcServer { + core, + handle: core_handle.downgrade(), + pending: Default::default(), + new_requests_receiver, + }; + + (client, server) } } @@ -43,7 +68,15 @@ impl RpcBuilder { /// /// The client is used to create new RPC calls. pub struct JulietRpcClient { - // TODO + new_request_sender: UnboundedSender, + request_handle: RequestHandle, +} + +pub struct JulietRpcRequestBuilder<'a, const N: usize> { + client: &'a JulietRpcClient, + channel: ChannelId, + payload: Option, + timeout: Option, } /// Juliet RPC Server. @@ -53,7 +86,13 @@ pub struct JulietRpcServer { core: IoCore, handle: Handle, pending: HashMap>, - new_requests: Receiver<(IoId, Arc)>, + new_requests_receiver: UnboundedReceiver, +} + +struct NewRequest { + ticket: RequestTicket, + guard: Arc, + payload: Option, } #[derive(Debug)] @@ -64,13 +103,13 @@ struct RequestGuardInner { ready: Option, } -type RequestOutcome = Arc>>; - -pub struct JulietRpcRequestBuilder { - request_handle: RequestHandle, - channel: ChannelId, - payload: Option, - timeout: Duration, // TODO: Properly handle. +impl RequestGuardInner { + fn new() -> Self { + RequestGuardInner { + outcome: OnceCell::new(), + ready: Some(Notify::new()), + } + } } impl JulietRpcClient { @@ -78,7 +117,12 @@ impl JulietRpcClient { /// /// The returned builder can be used to create a single request on the given channel. fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { - todo!() + JulietRpcRequestBuilder { + client: &self, + channel, + payload: None, + timeout: None, + } } } @@ -117,7 +161,7 @@ where } } -impl JulietRpcRequestBuilder { +impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// Sets the payload for the request. pub fn with_payload(mut self, payload: Bytes) -> Self { self.payload = Some(payload); @@ -126,66 +170,58 @@ impl JulietRpcRequestBuilder { /// Sets the timeout for the request. pub fn with_timeout(mut self, timeout: Duration) -> Self { - self.timeout = timeout; + self.timeout = Some(timeout); self } /// Schedules a new request on an outgoing channel. /// /// Blocks until space to store it is available. - pub async fn queue_for_sending(mut self) -> RequestGuard { - let outcome = OnceCell::new(); - - let inner = match self + pub async fn queue_for_sending(self) -> RequestGuard { + let ticket = match self + .client .request_handle - .enqueue_request(self.channel, self.payload) + .reserve_request(self.channel) .await { - Ok(io_id) => RequestGuardInner { - outcome, - ready: Some(Notify::new()), - }, - Err(payload) => { - outcome.set(Err(RequestError::RemoteClosed(payload))); - RequestGuardInner { - outcome, - ready: None, - } + Some(ticket) => ticket, + None => { + // We cannot queue the request, since the connection was closed. + return RequestGuard::error(RequestError::RemoteClosed(self.payload)); } }; - RequestGuard { - inner: Arc::new(inner), - } + self.do_enqueue_request(ticket) } - /// Try to schedule a new request. - /// - /// Fails if local buffer is full. - pub fn try_queue_for_sending(mut self) -> Result { - match self - .request_handle - .try_enqueue_request(self.channel, self.payload) - { - Ok(io_id) => Ok(RequestGuard { - inner: Arc::new(RequestGuardInner { - outcome: OnceCell::new(), - ready: Some(Notify::new()), - }), - }), - Err(EnqueueError::Closed(payload)) => { - // Drop the payload, give a handle that is already "expired". - Ok(RequestGuard::error(RequestError::RemoteClosed(payload))) + /// Schedules a new request on an outgoing channel if space is available. + pub fn try_queue_for_sending(self) -> Option { + let ticket = match self.client.request_handle.try_reserve_request(self.channel) { + Ok(ticket) => ticket, + Err(ReservationError::Closed) => { + return Some(RequestGuard::error(RequestError::RemoteClosed( + self.payload, + ))); } - Err(EnqueueError::LocalProtocolViolation(violation)) => { - Ok(RequestGuard::error(RequestError::Error(violation))) + Err(ReservationError::NoBufferSpaceAvailable) => { + return None; } - Err(EnqueueError::BufferLimitHit(payload)) => Err(JulietRpcRequestBuilder { - request_handle: self.request_handle, - channel: self.channel, - payload, - timeout: self.timeout, - }), + }; + + Some(self.do_enqueue_request(ticket)) + } + + #[inline(always)] + fn do_enqueue_request(self, ticket: RequestTicket) -> RequestGuard { + let inner = Arc::new(RequestGuardInner::new()); + + match self.client.new_request_sender.send(NewRequest { + ticket, + guard: inner.clone(), + payload: self.payload, + }) { + Ok(()) => RequestGuard { inner }, + Err(send_err) => RequestGuard::error(RequestError::RemoteClosed(send_err.0.payload)), } } } From 51241c09699b2abc1cce3bcbff28bb0cf4cd2f7b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 15:10:05 +0200 Subject: [PATCH 514/735] juliet: Process new events in RPC layer --- juliet/src/rpc.rs | 90 +++++++++++++++++++++++++++++++++++------------ 1 file changed, 67 insertions(+), 23 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index e3c0b34228..a439528bf6 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -11,7 +11,7 @@ use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncWrite}, sync::{ - mpsc::{self, Receiver, UnboundedReceiver, UnboundedSender}, + mpsc::{self, UnboundedReceiver, UnboundedSender}, Notify, }, }; @@ -110,6 +110,15 @@ impl RequestGuardInner { ready: Some(Notify::new()), } } + + fn set_and_notify(&self, value: Result, RequestError>) { + if self.outcome.set(value).is_ok() { + // If this is the first time the outcome is changed, notify exactly once. + if let Some(ref ready) = self.ready { + ready.notify_one() + } + }; + } } impl JulietRpcClient { @@ -139,28 +148,60 @@ where W: AsyncWrite + Unpin, { async fn next_request(&mut self) -> Result, RpcServerError> { - if let Some(event) = self.core.next_event().await? { - match event { - IoEvent::NewRequest { - channel, - id, - payload, - } => Ok(Some(IncomingRequest { - channel, - id, - payload, - handle: Some(self.handle.clone()), - })), - IoEvent::RequestCancelled { channel, id } => todo!(), - IoEvent::ReceivedResponse { io_id, payload } => todo!(), - IoEvent::ReceivedCancellationResponse { io_id } => todo!(), - } - } else { - Ok(None) + loop { + tokio::select! { + biased; + + opt_new_request = self.new_requests_receiver.recv() => { + if let Some(NewRequest { ticket, guard, payload }) = opt_new_request { + match self.handle.enqueue_request(ticket, payload) { + Ok(io_id) => { + // The request will be sent out, store it in our pending map. + self.pending.insert(io_id, guard); + }, + Err(payload) => { + // Failed to send -- time to shut down. + guard.set_and_notify(Err(RequestError::RemoteClosed(payload))) + } + } + } else { + // The client has been dropped, time for us to shut down as well. + return Ok(None); + } + } + + opt_event = self.core.next_event() => { + if let Some(event) = self.core.next_event().await? { + match event { + IoEvent::NewRequest { + channel, + id, + payload, + } => return Ok(Some(IncomingRequest { + channel, + id, + payload, + handle: Some(self.handle.clone()), + })), + IoEvent::RequestCancelled { channel, id } => todo!(), + IoEvent::ReceivedResponse { io_id, payload } => todo!(), + IoEvent::ReceivedCancellationResponse { io_id } => todo!(), + } + } else { + return Ok(None) + } + } + }; } } } +impl Drop for JulietRpcServer { + fn drop(&mut self) { + todo!("ensure all handles get the news") + } +} + impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// Sets the payload for the request. pub fn with_payload(mut self, payload: Bytes) -> Self { @@ -187,7 +228,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { Some(ticket) => ticket, None => { // We cannot queue the request, since the connection was closed. - return RequestGuard::error(RequestError::RemoteClosed(self.payload)); + return RequestGuard::new_error(RequestError::RemoteClosed(self.payload)); } }; @@ -199,7 +240,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { let ticket = match self.client.request_handle.try_reserve_request(self.channel) { Ok(ticket) => ticket, Err(ReservationError::Closed) => { - return Some(RequestGuard::error(RequestError::RemoteClosed( + return Some(RequestGuard::new_error(RequestError::RemoteClosed( self.payload, ))); } @@ -221,7 +262,9 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { payload: self.payload, }) { Ok(()) => RequestGuard { inner }, - Err(send_err) => RequestGuard::error(RequestError::RemoteClosed(send_err.0.payload)), + Err(send_err) => { + RequestGuard::new_error(RequestError::RemoteClosed(send_err.0.payload)) + } } } } @@ -240,12 +283,13 @@ pub enum RequestError { Error(LocalProtocolViolation), } +#[must_use = "dropping the request guard will immediately cancel the request"] pub struct RequestGuard { inner: Arc, } impl RequestGuard { - fn error(error: RequestError) -> Self { + fn new_error(error: RequestError) -> Self { let outcome = OnceCell::new(); outcome .set(Err(error)) From f07729b80afef69ef48d0bd5cc1d56d80b563087 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 15:15:17 +0200 Subject: [PATCH 515/735] juliet: Complete RPC processing loop --- juliet/src/io.rs | 1 + juliet/src/rpc.rs | 29 +++++++++++++++++++++++++---- 2 files changed, 26 insertions(+), 4 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 55e850b28c..1e8c7c1791 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -212,6 +212,7 @@ pub enum IoEvent { /// The payload provided with the request. payload: Option, }, + /// A received request has been cancelled. RequestCancelled { /// Channel the original request arrived on. channel: ChannelId, diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index a439528bf6..9fd0496b0e 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -171,7 +171,7 @@ where } opt_event = self.core.next_event() => { - if let Some(event) = self.core.next_event().await? { + if let Some(event) = opt_event? { match event { IoEvent::NewRequest { channel, @@ -183,9 +183,30 @@ where payload, handle: Some(self.handle.clone()), })), - IoEvent::RequestCancelled { channel, id } => todo!(), - IoEvent::ReceivedResponse { io_id, payload } => todo!(), - IoEvent::ReceivedCancellationResponse { io_id } => todo!(), + IoEvent::RequestCancelled { channel, id } => { + // Request cancellation is currently not implemented; there is no + // harm in sending the reply. + }, + IoEvent::ReceivedResponse { io_id, payload } => { + match self.pending.remove(&io_id) { + None => { + // The request has been cancelled on our end, no big deal. + } + Some(guard) => { + guard.set_and_notify(Ok(payload)) + } + } + }, + IoEvent::ReceivedCancellationResponse { io_id } => { + match self.pending.remove(&io_id) { + None => { + // The request has been cancelled on our end, no big deal. + } + Some(guard) => { + guard.set_and_notify(Err(RequestError::RemoteCancelled)) + } + } + }, } } else { return Ok(None) From b683609c0a4aaaadc9f3f1839bd7e10693f5460a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 15:31:04 +0200 Subject: [PATCH 516/735] juliet: Finish all of the core RPC functionality --- juliet/src/rpc.rs | 61 ++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 50 insertions(+), 11 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 9fd0496b0e..06ce93fef4 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -219,7 +219,22 @@ where impl Drop for JulietRpcServer { fn drop(&mut self) { - todo!("ensure all handles get the news") + // When the server is dropped, ensure all waiting requests are informed. + + self.new_requests_receiver.close(); + + for (_io_id, guard) in self.pending.drain() { + guard.set_and_notify(Err(RequestError::Shutdown)); + } + + while let Ok(NewRequest { + ticket: _, + guard, + payload, + }) = self.new_requests_receiver.try_recv() + { + guard.set_and_notify(Err(RequestError::RemoteClosed(payload))) + } } } @@ -290,10 +305,12 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { } } -#[derive(Debug)] +#[derive(Clone, Debug)] pub enum RequestError { /// Remote closed, could not send. RemoteClosed(Option), + /// Sent, but never received a reply. + Shutdown, /// Local timeout. TimedOut, /// Remote said "no". @@ -326,36 +343,58 @@ impl RequestGuard { /// Cancels the request, causing it to not be sent if it is still in the queue. /// /// No response will be available for the request, any call to `wait_for_finish` will result in an error. - pub fn cancel(self) { - todo!() + pub fn cancel(mut self) { + self.do_cancel(); + + self.forget() + } + + fn do_cancel(&mut self) { + // TODO: Implement actual sending of the cancellation. } /// Forgets the request was made. /// /// Any response will be accepted, but discarded. pub fn forget(self) { - todo!() + // TODO: Implement eager cancellation locally, potentially removing this request from the + // outbound queue. } /// Waits for the response to come back. pub async fn wait_for_response(self) -> Result, RequestError> { - todo!() + // Wait for notification. + if let Some(ref ready) = self.inner.ready { + ready.notified().await; + } + + self.take_inner() } /// Waits for the response, non-blockingly. pub fn try_wait_for_response(self) -> Result, RequestError>, Self> { - todo!() + if self.inner.outcome.get().is_some() { + Ok(self.take_inner()) + } else { + Err(self) + } } - /// Waits for the sending to complete. - pub async fn wait_for_send(&mut self) { - todo!() + fn take_inner(self) -> Result, RequestError> { + // TODO: Best to move `Notified` + `OnceCell` into a separate struct for testing and upholding + // these invariants, avoiding the extra clones. + + self.inner + .outcome + .get() + .expect("should not have called notified without setting cell contents") + .clone() } } impl Drop for RequestGuard { fn drop(&mut self) { - todo!("on drop, cancel request") + self.do_cancel(); } } From 704a1957e72fa8b65ebe694a44818c3c5a4c7b31 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 16:46:26 +0200 Subject: [PATCH 517/735] juliet: Add simple fizzbuzz example --- Cargo.lock | 1 + juliet/Cargo.toml | 4 +++- juliet/src/rpc.rs | 25 ++++++++++++++++++------- 3 files changed, 22 insertions(+), 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 6c7f095ea9..80e5946916 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2497,6 +2497,7 @@ dependencies = [ "proptest", "proptest-attr-macro", "proptest-derive", + "rand 0.8.5", "thiserror", "tokio", ] diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index d38d2ba6cd..a9cad3a000 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -12,9 +12,11 @@ bytes = "1.4.0" futures = "0.3.28" portable-atomic = "1.3.3" thiserror = "1.0.40" -tokio = { version = "1.29.1", features = ["macros", "io-util", "sync"] } +tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } [dev-dependencies] +tokio = { features = [ "net", "rt-multi-thread", "time" ] } proptest = "1.1.0" proptest-attr-macro = "1.0.0" proptest-derive = "0.3.0" +rand = "0.8.5" diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 06ce93fef4..eff0e8a4f3 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -3,7 +3,11 @@ //! The outermost layer of the `juliet` stack, combines the underlying IO and protocol primites into //! a convenient, type safe RPC system. -use std::{cell::OnceCell, collections::HashMap, sync::Arc, time::Duration}; +use std::{ + collections::HashMap, + sync::{Arc, OnceLock}, + time::Duration, +}; use bytes::Bytes; @@ -98,7 +102,7 @@ struct NewRequest { #[derive(Debug)] struct RequestGuardInner { /// The returned response of the request. - outcome: OnceCell, RequestError>>, + outcome: OnceLock, RequestError>>, /// A notifier for when the result arrives. ready: Option, } @@ -106,7 +110,7 @@ struct RequestGuardInner { impl RequestGuardInner { fn new() -> Self { RequestGuardInner { - outcome: OnceCell::new(), + outcome: OnceLock::new(), ready: Some(Notify::new()), } } @@ -125,7 +129,7 @@ impl JulietRpcClient { /// Creates a new RPC request builder. /// /// The returned builder can be used to create a single request on the given channel. - fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { + pub fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { JulietRpcRequestBuilder { client: &self, channel, @@ -147,7 +151,7 @@ where R: AsyncRead + Unpin, W: AsyncWrite + Unpin, { - async fn next_request(&mut self) -> Result, RpcServerError> { + pub async fn next_request(&mut self) -> Result, RpcServerError> { loop { tokio::select! { biased; @@ -305,19 +309,26 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { } } -#[derive(Clone, Debug)] +/// An RPC request error. +#[derive(Clone, Debug, Error)] pub enum RequestError { /// Remote closed, could not send. + #[error("remote closed connection before request could be sent")] RemoteClosed(Option), /// Sent, but never received a reply. + #[error("never received reply before remote closed connection")] Shutdown, /// Local timeout. + #[error("request timed out ")] TimedOut, /// Remote said "no". + #[error("remote cancelled our request")] RemoteCancelled, /// Cancelled locally. + #[error("request cancelled locally")] Cancelled, /// API misuse + #[error("API misused or other internal error")] Error(LocalProtocolViolation), } @@ -328,7 +339,7 @@ pub struct RequestGuard { impl RequestGuard { fn new_error(error: RequestError) -> Self { - let outcome = OnceCell::new(); + let outcome = OnceLock::new(); outcome .set(Err(error)) .expect("newly constructed cell should always be empty"); From 9e45379dc13282277645ceb29d75b356a3289e78 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 16:57:43 +0200 Subject: [PATCH 518/735] juliet: Only attempt to unwrap the current frame when required to do so --- juliet/src/io.rs | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 1e8c7c1791..9b4df03351 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -352,12 +352,25 @@ where } } + // TODO: Can we find something more elegant than this abomination? + #[inline(always)] + async fn write_all_buf_if_some( + writer: &mut W, + buf: Option<&mut impl Buf>, + ) -> Result<(), io::Error> { + if let Some(buf) = buf { + writer.write_all_buf(buf).await + } else { + Ok(()) + } + } + tokio::select! { biased; // We actually like the bias, avoid the randomness overhead. - // Writing outgoing data if there is more to send. - write_result = self.writer.write_all_buf(self.current_frame.as_mut().unwrap()) - , if self.current_frame.is_some() => { + write_result = write_all_buf_if_some(&mut self.writer, self.current_frame.as_mut()) + , if self.current_frame.is_some() => { + write_result.map_err(CoreError::WriteFailed)?; // If we just finished sending an error, it's time to exit. From 02a530a6135c8b530e44aa48dd16bec90805c82b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 17:19:34 +0200 Subject: [PATCH 519/735] juliet: Do not cancel all outgoing requests immediately --- juliet/src/io.rs | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 9b4df03351..b98e5832a7 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -514,14 +514,18 @@ where return Ok(()); } - self.send_to_ready_queue(item) + self.send_to_ready_queue(item, false) } /// Sends an item directly to the ready queue, causing it to be sent out eventually. /// /// `item` is passed as a mutable reference for compatibility with functions like `retain_mut`, /// but will be left with all payloads removed, thus should likely not be reused. - fn send_to_ready_queue(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { + fn send_to_ready_queue( + &mut self, + item: QueuedItem, + check_for_cancellation: bool, + ) -> Result<(), LocalProtocolViolation> { match item { QueuedItem::Request { io_id, @@ -533,14 +537,15 @@ where // we can cancel it by checking if the `IoId` has been removed in the meantime. // // Note that this only cancels multi-frame requests. - if self.request_map.contains_left(&io_id) { + if check_for_cancellation && !self.request_map.contains_left(&io_id) { + // We just ignore the request, as it has been cancelled in the meantime. + } else { let msg = self.juliet.create_request(channel, payload)?; let id = msg.header().id(); self.request_map.insert(io_id, (channel, id)); self.ready_queue.push_back(msg.frames()); } - // Explicitly drop permit, allowing another request to be buffered on the channel. drop(permit); } QueuedItem::RequestCancellation { io_id } => { @@ -647,7 +652,7 @@ where // Put it right back into the queue. self.wait_queue[channel.get() as usize].push_back(item); } else { - self.send_to_ready_queue(item)?; + self.send_to_ready_queue(item, true)?; } } } From 431b2edc4f314a134e553c53de84b545b8093969 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 17:23:05 +0200 Subject: [PATCH 520/735] juliet: Remove unused `IoCore::into_stream` --- juliet/src/io.rs | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index b98e5832a7..7789568fed 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -659,24 +659,6 @@ where Ok(()) } - - /// Converts the [`IoCore`] into a stream. - /// - /// The stream will continuously call [`IoCore::next_event`] until the connection is closed or - /// an error has been produced. - fn into_stream(self) -> impl Stream> { - futures::stream::unfold(Some(self), |state| async { - let mut this = state?; - match this.next_event().await { - // Regular event -- keep both the state and return it. - Ok(Some(event)) => Some((Ok(event), Some(this))), - // Connection closed - we can immediately stop the stream. - Ok(None) => None, - // Error sent - return the error, but stop polling afterwards. - Err(err) => Some((Err(err), None)), - } - }) - } } /// Determines whether an item is ready to be moved from the wait queue from the ready queue. From 15611c69f722ac0952414759aba8c5b7f977d7e2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 17:26:53 +0200 Subject: [PATCH 521/735] juliet: Allow shortcut for configuring channels --- juliet/src/protocol.rs | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 03915067cd..320aeba29d 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -73,15 +73,22 @@ pub struct ProtocolBuilder { } impl Default for ProtocolBuilder { + #[inline] fn default() -> Self { + Self::with_default_channel_config(Default::default()) + } +} + +impl ProtocolBuilder { + /// Creates a new protocol builder with all channels preconfigured using the given config. + #[inline] + pub fn with_default_channel_config(config: ChannelConfiguration) -> Self { Self { - channel_config: [Default::default(); N], + channel_config: [config; N], max_frame_size: 4096, } } -} -impl ProtocolBuilder { /// Update the channel configuration for a given channel. pub fn channel_config(mut self, channel: ChannelId, config: ChannelConfiguration) -> Self { self.channel_config[channel.get() as usize] = config; From 71e256a128bd169b188bf2af8b91252d107c2c21 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 12 Jul 2023 17:38:29 +0200 Subject: [PATCH 522/735] juliet: Fix bugs in next-frame processing --- juliet/src/io.rs | 15 +++++++++------ juliet/src/protocol/outgoing_message.rs | 2 ++ juliet/src/rpc.rs | 1 + 3 files changed, 12 insertions(+), 6 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 7789568fed..195f4218e3 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -365,6 +365,11 @@ where } } + + if self.current_frame.is_none() && !self.ready_queue.is_empty() { + self.ready_next_frame()?; + } + tokio::select! { biased; // We actually like the bias, avoid the randomness overhead. @@ -379,9 +384,6 @@ where // We finished sending an error frame, time to exit. return Err(CoreError::RemoteProtocolViolation(frame_sent)); } - - // Otherwise prepare the next frame. - self.current_frame = self.ready_next_frame()?; } // Reading incoming data. @@ -595,14 +597,14 @@ where /// Returns `None` if no frames are ready to be sent. Note that there may be frames waiting /// that cannot be sent due them being multi-frame messages when there already is a multi-frame /// message in progress, or request limits are being hit. - fn ready_next_frame(&mut self) -> Result, LocalProtocolViolation> { + fn ready_next_frame(&mut self) -> Result<(), LocalProtocolViolation> { debug_assert!(self.current_frame.is_none()); // Must be guaranteed by caller. // Try to fetch a frame from the ready queue. If there is nothing, we are stuck until the // next time the wait queue is processed or new data arrives. let (frame, additional_frames) = match self.ready_queue.pop_front() { Some(item) => item, - None => return Ok(None), + None => return Ok(()), } .next_owned(self.juliet.max_frame_size()); @@ -626,7 +628,8 @@ where } } - Ok(Some(frame)) + self.current_frame = Some(frame); + Ok(()) } /// Process the wait queue of all channels marked dirty, promoting messages that are ready to be diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 2e06a573f5..374d998943 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -22,6 +22,7 @@ use super::payload_is_multi_frame; /// interspersed with other messages at will. In general, the [`OutgoingMessage::frames()`] iterator /// should be used, even for single-frame messages. #[must_use] +#[derive(Debug)] pub struct OutgoingMessage { /// The common header for all outgoing messages. header: Header, @@ -117,6 +118,7 @@ impl AsRef<[u8]> for Preamble { /// Iterator over frames of a message. // Note: This type can be written just borrowing `msg`, by making it owned, we prevent accidental // duplicate message sending. Furthermore we allow methods like `into_iter` to be added. +#[derive(Debug)] #[must_use] pub struct FrameIter { /// The outgoing message in its entirety. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index eff0e8a4f3..c78f4da200 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -332,6 +332,7 @@ pub enum RequestError { Error(LocalProtocolViolation), } +#[derive(Debug)] #[must_use = "dropping the request guard will immediately cancel the request"] pub struct RequestGuard { inner: Arc, From e07d5e3a3e981b69b3605563fe0c12eda9de1713 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 11:53:58 +0200 Subject: [PATCH 523/735] juliet: Add `fizzbuzz` example --- juliet/examples/fizzbuzz.rs | 152 ++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 juliet/examples/fizzbuzz.rs diff --git a/juliet/examples/fizzbuzz.rs b/juliet/examples/fizzbuzz.rs new file mode 100644 index 0000000000..c44a525bad --- /dev/null +++ b/juliet/examples/fizzbuzz.rs @@ -0,0 +1,152 @@ +//! A juliet-based fizzbuzz server. + +use std::{fmt::Write, net::SocketAddr, time::Duration}; + +use bytes::BytesMut; +use juliet::{ + io::IoCoreBuilder, + protocol::ProtocolBuilder, + rpc::{IncomingRequest, RpcBuilder}, + ChannelConfiguration, ChannelId, +}; +use rand::Rng; +use tokio::net::{TcpListener, TcpStream}; + +const SERVER_ADDR: &str = "127.0.0.1:12345"; + +#[tokio::main] +async fn main() { + // Create a new protocol instance with two channels, allowing three requests in flight each. + let protocol_builder = ProtocolBuilder::<2>::with_default_channel_config( + ChannelConfiguration::default() + .with_request_limit(3) + .with_max_request_payload_size(4) + .with_max_response_payload_size(512), + ); + + // Create the IO layer, buffering at most two messages on the wait queue per channel. + let io_builder = IoCoreBuilder::new(protocol_builder) + .buffer_size(ChannelId::new(0), 2) + .buffer_size(ChannelId::new(1), 2); + + // Create the final RPC builder - we will use this on every connection. + let rpc_builder = Box::leak(Box::new(RpcBuilder::new(io_builder))); + + let mut args = std::env::args().into_iter(); + args.next().expect("did not expect missing argv0"); + let is_server = args.next().map(|a| a == "server").unwrap_or_default(); + + if is_server { + let listener = TcpListener::bind(SERVER_ADDR) + .await + .expect("failed to listen"); + println!("listening on {}", SERVER_ADDR); + loop { + match listener.accept().await { + Ok((client, addr)) => { + println!("new connection from {}", addr); + tokio::spawn(handle_client(addr, client, rpc_builder)); + } + Err(io_err) => { + println!("acceptance failure: {:?}", io_err); + } + } + } + } else { + let remote_server = TcpStream::connect(SERVER_ADDR) + .await + .expect("failed to connect to server"); + println!("connected to server {}", SERVER_ADDR); + + let (reader, writer) = remote_server.into_split(); + let (client, mut server) = rpc_builder.build(reader, writer); + + // We are not using the server functionality, but it still as to run. + tokio::spawn(async move { + server + .next_request() + .await + .expect("server closed connection"); + }); + + for num in 0..u32::MAX { + let request_guard = client + .create_request(ChannelId::new(0)) + .with_payload(num.to_be_bytes().to_vec().into()) + .queue_for_sending() + .await; + + println!("sent request {}", num); + match request_guard.wait_for_response().await { + Ok(response) => { + let decoded = + String::from_utf8(response.expect("should have payload").to_vec()) + .expect("did not expect invalid UTF8"); + println!("{} -> {}", num, decoded); + } + Err(err) => { + println!("server error: {}", err); + break; + } + } + } + } +} + +async fn handle_client( + addr: SocketAddr, + mut client: TcpStream, + rpc_builder: &RpcBuilder, +) { + let (reader, writer) = client.split(); + let (client, mut server) = rpc_builder.build(reader, writer); + + loop { + match server.next_request().await { + Ok(opt_incoming_request) => { + if let Some(incoming_request) = opt_incoming_request { + tokio::spawn(handle_request(incoming_request)); + } else { + // Client exited. + println!("client {} disconnected", addr); + break; + } + } + Err(err) => { + println!("client {} error: {}", addr, err); + break; + } + } + } + + // We are a server, we won't make any requests of our own, but we need to keep the client + // around, since dropping the client will trigger a server shutdown. + drop(client); +} + +async fn handle_request(incoming_request: IncomingRequest) { + let processing_time = rand::thread_rng().gen_range(5..20) * Duration::from_millis(100); + tokio::time::sleep(processing_time).await; + + let payload = incoming_request + .payload() + .as_ref() + .expect("should have payload"); + let num = + u32::from_be_bytes(<[u8; 4]>::try_from(payload.as_ref()).expect("could not decode u32")); + + // Construct the response. + let mut response_payload = BytesMut::new(); + if num % 3 == 0 { + response_payload.write_str("Fizz ").unwrap(); + } + if num % 5 == 0 { + response_payload.write_str("Buzz ").unwrap(); + } + if response_payload.is_empty() { + write!(response_payload, "{}", num).unwrap(); + } + + // Send it back. + incoming_request.respond(Some(response_payload.freeze())); +} From 6daa480683720adba91679c50a87eacf89e50429 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 11:55:09 +0200 Subject: [PATCH 524/735] juliet: Fix sign error bug in multiframe reader --- juliet/src/protocol/multiframe.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 5f21cce4ec..398040e8ac 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -99,7 +99,7 @@ impl MultiframeReceiver { + (max_data_in_frame as usize).min(payload_size.value as usize), ); if buffer.remaining() < *frame_end { - return Outcome::incomplete(buffer.remaining() - *frame_end); + return Outcome::incomplete(*frame_end - buffer.remaining()); } // At this point we are sure to complete a frame, so drop the preamble. From 69adaaa438f380e6bfd5b76857d20a4504d8cffa Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 12:21:22 +0200 Subject: [PATCH 525/735] juliet: Add `tracing` feature with logging for every outgoing frame --- Cargo.lock | 6 ++-- juliet/Cargo.toml | 7 +++++ juliet/examples/fizzbuzz.rs | 4 +++ juliet/src/io.rs | 8 +++++ juliet/src/protocol/outgoing_message.rs | 26 +++++++++++++++- juliet/src/util.rs | 41 +++++++++++++++++++++++++ 6 files changed, 89 insertions(+), 3 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 80e5946916..e72e2ab27b 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2500,6 +2500,8 @@ dependencies = [ "rand 0.8.5", "thiserror", "tokio", + "tracing", + "tracing-subscriber", ] [[package]] @@ -4860,9 +4862,9 @@ dependencies = [ [[package]] name = "tracing-subscriber" -version = "0.3.16" +version = "0.3.17" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a6176eae26dd70d0c919749377897b54a9276bd7061339665dd68777926b5a70" +checksum = "30a651bc37f915e81f087d86e62a18eec5f79550c7faff886f7090b4ea757c77" dependencies = [ "matchers", "nu-ansi-term", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index a9cad3a000..3751d74cb4 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -13,6 +13,7 @@ futures = "0.3.28" portable-atomic = "1.3.3" thiserror = "1.0.40" tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } +tracing = { version = "0.1.37", optional = true } [dev-dependencies] tokio = { features = [ "net", "rt-multi-thread", "time" ] } @@ -20,3 +21,9 @@ proptest = "1.1.0" proptest-attr-macro = "1.0.0" proptest-derive = "0.3.0" rand = "0.8.5" +tracing = "0.1.37" +tracing-subscriber = "0.3.17" + +[[example]] +name = "fizzbuzz" +required-features = [ "tracing" ] diff --git a/juliet/examples/fizzbuzz.rs b/juliet/examples/fizzbuzz.rs index c44a525bad..3235f12680 100644 --- a/juliet/examples/fizzbuzz.rs +++ b/juliet/examples/fizzbuzz.rs @@ -16,6 +16,10 @@ const SERVER_ADDR: &str = "127.0.0.1:12345"; #[tokio::main] async fn main() { + tracing_subscriber::fmt() + .with_max_level(tracing::Level::TRACE) + .init(); + // Create a new protocol instance with two channels, allowing three requests in flight each. let protocol_builder = ProtocolBuilder::<2>::with_default_channel_config( ChannelConfiguration::default() diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 195f4218e3..a557881429 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -375,11 +375,19 @@ where write_result = write_all_buf_if_some(&mut self.writer, self.current_frame.as_mut()) , if self.current_frame.is_some() => { + println!("write complete"); write_result.map_err(CoreError::WriteFailed)?; // If we just finished sending an error, it's time to exit. let frame_sent = self.current_frame.take().unwrap(); + + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(frame=%frame_sent, "sent"); + } + if frame_sent.header().is_error() { // We finished sending an error frame, time to exit. return Err(CoreError::RemoteProtocolViolation(frame_sent)); diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 374d998943..8e4a4fc774 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -4,7 +4,10 @@ //! juliet networking protocol, this module contains the necessary output types like //! [`OutgoingMessage`]. -use std::io::Cursor; +use std::{ + fmt::{self, Debug, Display, Formatter}, + io::Cursor, +}; use bytemuck::{Pod, Zeroable}; use bytes::{buf::Chain, Buf, Bytes}; @@ -83,6 +86,16 @@ struct Preamble { payload_length: Varint32, } +impl Display for Preamble { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + self.header.fmt(f)?; + if self.payload_length.is_sentinel() { + write!(f, " [l={}]", self.payload_length.decode())?; + } + Ok(()) + } +} + impl Preamble { /// Creates a new preamble. /// @@ -188,6 +201,17 @@ impl FrameIter { #[must_use] pub struct OutgoingFrame(Chain, Bytes>); +impl Display for OutgoingFrame { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + write!( + f, + "<{} {}>", + self.0.first_ref().get_ref(), + crate::util::tracing_support::PayloadFormat(self.0.last_ref()) + ) + } +} + impl OutgoingFrame { /// Creates a new [`OutgoingFrame`] with no payload. /// diff --git a/juliet/src/util.rs b/juliet/src/util.rs index 506174adbb..1286b309de 100644 --- a/juliet/src/util.rs +++ b/juliet/src/util.rs @@ -33,3 +33,44 @@ impl<'a> Index<'a> { } } } + +#[cfg(feature = "tracing")] +pub mod tracing_support { + //! Display helper for formatting messages in `tracing` log messages. + use std::fmt::{self, Display, Formatter}; + + use bytes::Bytes; + + /// Pretty prints a single payload. + pub struct PayloadFormat<'a>(pub &'a Bytes); + + impl<'a> Display for PayloadFormat<'a> { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + let raw = self.0.as_ref(); + + for &byte in &raw[0..raw.len().min(16)] { + write!(f, "{:02x} ", byte)?; + } + + if raw.len() > 16 { + f.write_str("...")?; + } + + write!(f, " ({} bytes)", raw.len()); + + Ok(()) + } + } + + /// Pretty prints an optional payload. + pub struct OptPayloadFormat<'a>(pub Option<&'a Bytes>); + + impl<'a> Display for OptPayloadFormat<'a> { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + match self.0 { + None => f.write_str("(no payload)"), + Some(inner) => PayloadFormat(inner).fmt(f), + } + } + } +} From c012cf5910e2e03d9ef6186bc97915f6f4c5fb98 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 13:03:49 +0200 Subject: [PATCH 526/735] juliet: Remove `println!` in favor of `tracing` --- juliet/Cargo.toml | 2 +- juliet/examples/fizzbuzz.rs | 31 +++++++++++++--------- juliet/src/header.rs | 9 ++++++- juliet/src/io.rs | 2 -- juliet/src/protocol.rs | 35 +++++++++++++++++++++++-- juliet/src/protocol/multiframe.rs | 2 ++ juliet/src/protocol/outgoing_message.rs | 2 +- juliet/src/util.rs | 2 +- 8 files changed, 64 insertions(+), 21 deletions(-) diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 3751d74cb4..7be179b57b 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -22,7 +22,7 @@ proptest-attr-macro = "1.0.0" proptest-derive = "0.3.0" rand = "0.8.5" tracing = "0.1.37" -tracing-subscriber = "0.3.17" +tracing-subscriber = { version = "0.3.17", features = [ "env-filter" ] } [[example]] name = "fizzbuzz" diff --git a/juliet/examples/fizzbuzz.rs b/juliet/examples/fizzbuzz.rs index 3235f12680..12a3c5cbd0 100644 --- a/juliet/examples/fizzbuzz.rs +++ b/juliet/examples/fizzbuzz.rs @@ -11,6 +11,7 @@ use juliet::{ }; use rand::Rng; use tokio::net::{TcpListener, TcpStream}; +use tracing::{debug, error, info, warn}; const SERVER_ADDR: &str = "127.0.0.1:12345"; @@ -18,6 +19,11 @@ const SERVER_ADDR: &str = "127.0.0.1:12345"; async fn main() { tracing_subscriber::fmt() .with_max_level(tracing::Level::TRACE) + .with_env_filter( + tracing_subscriber::EnvFilter::from_default_env() + .add_directive("juliet=trace".parse().unwrap()) + .add_directive("fizzbuzz=trace".parse().unwrap()), + ) .init(); // Create a new protocol instance with two channels, allowing three requests in flight each. @@ -44,15 +50,15 @@ async fn main() { let listener = TcpListener::bind(SERVER_ADDR) .await .expect("failed to listen"); - println!("listening on {}", SERVER_ADDR); + info!("listening on {}", SERVER_ADDR); loop { match listener.accept().await { Ok((client, addr)) => { - println!("new connection from {}", addr); + info!("new connection from {}", addr); tokio::spawn(handle_client(addr, client, rpc_builder)); } Err(io_err) => { - println!("acceptance failure: {:?}", io_err); + warn!("acceptance failure: {:?}", io_err); } } } @@ -60,17 +66,16 @@ async fn main() { let remote_server = TcpStream::connect(SERVER_ADDR) .await .expect("failed to connect to server"); - println!("connected to server {}", SERVER_ADDR); + info!("connected to server {}", SERVER_ADDR); let (reader, writer) = remote_server.into_split(); let (client, mut server) = rpc_builder.build(reader, writer); // We are not using the server functionality, but it still as to run. tokio::spawn(async move { - server - .next_request() - .await - .expect("server closed connection"); + if let Err(err) = server.next_request().await { + error!(%err, "server read error"); + } }); for num in 0..u32::MAX { @@ -80,16 +85,16 @@ async fn main() { .queue_for_sending() .await; - println!("sent request {}", num); + debug!("sent request {}", num); match request_guard.wait_for_response().await { Ok(response) => { let decoded = String::from_utf8(response.expect("should have payload").to_vec()) .expect("did not expect invalid UTF8"); - println!("{} -> {}", num, decoded); + info!("{} -> {}", num, decoded); } Err(err) => { - println!("server error: {}", err); + error!("server error: {}", err); break; } } @@ -112,12 +117,12 @@ async fn handle_client( tokio::spawn(handle_request(incoming_request)); } else { // Client exited. - println!("client {} disconnected", addr); + info!("client {} disconnected", addr); break; } } Err(err) => { - println!("client {} error: {}", addr, err); + warn!("client {} error: {}", addr, err); break; } } diff --git a/juliet/src/header.rs b/juliet/src/header.rs index c52cd4a66b..c322839697 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,5 +1,5 @@ //! `juliet` header parsing and serialization. -use std::fmt::Debug; +use std::fmt::{Debug, Display}; use bytemuck::{Pod, Zeroable}; use thiserror::Error; @@ -38,6 +38,13 @@ impl Debug for Header { } } +impl Display for Header { + #[inline(always)] + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + Debug::fmt(self, f) + } +} + /// Error kind, from the kind byte. #[derive(Copy, Clone, Debug, Error)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] diff --git a/juliet/src/io.rs b/juliet/src/io.rs index a557881429..7df3ffce04 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -365,7 +365,6 @@ where } } - if self.current_frame.is_none() && !self.ready_queue.is_empty() { self.ready_next_frame()?; } @@ -375,7 +374,6 @@ where write_result = write_all_buf_if_some(&mut self.writer, self.current_frame.as_mut()) , if self.current_frame.is_some() => { - println!("write complete"); write_result.map_err(CoreError::WriteFailed)?; diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 320aeba29d..ac2adba3a1 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -597,6 +597,11 @@ impl JulietProtocol { buffer.advance(*preamble_end); let payload = buffer.split_to(payload_length); + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(%header, "received error"); + } return Success(CompletedRead::ErrorReceived { header, data: Some(payload.freeze()), @@ -629,6 +634,11 @@ impl JulietProtocol { // incoming set. All we need to do now is to remove it from the buffer. buffer.advance(Header::SIZE); + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(%header, "received request"); + } return Success(CompletedRead::NewRequest { channel: header.channel(), id: header.id(), @@ -639,6 +649,11 @@ impl JulietProtocol { if !channel.outgoing_requests.remove(&header.id()) { return err_msg(header, ErrorKind::FictitiousRequest); } else { + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(%header, "received response"); + } return Success(CompletedRead::ReceivedResponse { channel: header.channel(), id: header.id(), @@ -683,10 +698,12 @@ impl JulietProtocol { match multiframe_outcome { Some(payload) => { // Message is complete. + let payload = payload.freeze(); + return Success(CompletedRead::NewRequest { channel: header.channel(), id: header.id(), - payload: Some(payload.freeze()), + payload: Some(payload), }); } None => { @@ -725,10 +742,12 @@ impl JulietProtocol { match multiframe_outcome { Some(payload) => { // Message is complete. + let payload = payload.freeze(); + return Success(CompletedRead::ReceivedResponse { channel: header.channel(), id: header.id(), - payload: Some(payload.freeze()), + payload: Some(payload), }); } None => { @@ -749,6 +768,12 @@ impl JulietProtocol { // TODO: What to do with partially received multi-frame request? // TODO: Actually remove from incoming set. + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(%header, "received request cancellation"); + } + return Success(CompletedRead::RequestCancellation { channel: header.channel(), id: header.id(), @@ -756,6 +781,12 @@ impl JulietProtocol { } Kind::CancelResp => { if channel.outgoing_requests.remove(&header.id()) { + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(%header, "received response cancellation"); + } + return Success(CompletedRead::ResponseCancellation { channel: header.channel(), id: header.id(), diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 398040e8ac..b15696b4cc 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -72,6 +72,8 @@ impl MultiframeReceiver { "maximum frame size must be enough to hold header and varint" ); + // TODO: Use tracing to log frames here. + match self { MultiframeReceiver::Ready => { // We have a new segment, which has a variable size. diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 8e4a4fc774..25b30761a9 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -88,7 +88,7 @@ struct Preamble { impl Display for Preamble { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - self.header.fmt(f)?; + Display::fmt(&self.header, f)?; if self.payload_length.is_sentinel() { write!(f, " [l={}]", self.payload_length.decode())?; } diff --git a/juliet/src/util.rs b/juliet/src/util.rs index 1286b309de..e2ed38f61a 100644 --- a/juliet/src/util.rs +++ b/juliet/src/util.rs @@ -56,7 +56,7 @@ pub mod tracing_support { f.write_str("...")?; } - write!(f, " ({} bytes)", raw.len()); + write!(f, " ({} bytes)", raw.len())?; Ok(()) } From 9ba2bf6d42251bc939cf458bfdb81e065929297b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 13:08:48 +0200 Subject: [PATCH 527/735] juliet: Improve formatting of non-payload preambles when logging --- juliet/src/protocol/outgoing_message.rs | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 25b30761a9..5f677d701d 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -89,7 +89,7 @@ struct Preamble { impl Display for Preamble { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { Display::fmt(&self.header, f)?; - if self.payload_length.is_sentinel() { + if !self.payload_length.is_sentinel() { write!(f, " [l={}]", self.payload_length.decode())?; } Ok(()) @@ -203,12 +203,18 @@ pub struct OutgoingFrame(Chain, Bytes>); impl Display for OutgoingFrame { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - write!( - f, - "<{} {}>", - self.0.first_ref().get_ref(), - crate::util::tracing_support::PayloadFormat(self.0.last_ref()) - ) + write!(f, "<{}", self.0.first_ref().get_ref(),)?; + + let payload = self.0.last_ref(); + + if !payload.as_ref().is_empty() { + Display::fmt( + &crate::util::tracing_support::PayloadFormat(self.0.last_ref()), + f, + )?; + } + + f.write_str(">") } } From befbbc2396780c0b0c17b7ea79373fd0f7ea9865 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 13:21:47 +0200 Subject: [PATCH 528/735] juliet: Improve raw frame logging in protocol --- juliet/src/protocol.rs | 58 +++++++++++++++++++++++++----------------- 1 file changed, 35 insertions(+), 23 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index ac2adba3a1..26ceebc9a9 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -294,6 +294,31 @@ pub enum LocalProtocolViolation { ErrorPayloadIsMultiFrame, } +macro_rules! log_frame { + ($header:expr) => { + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(header=%$header, "received"); + } + #[cfg(not(feature = "tracing"))] + { + // tracing feature disabled, not logging frame + } + }; + ($header:expr, $payload:expr) => { + #[cfg(feature = "tracing")] + { + use tracing::trace; + trace!(header=%$header, payload=%crate::util::tracing_support::PayloadFormat(&$payload), "received"); + } + #[cfg(not(feature = "tracing"))] + { + // tracing feature disabled, not logging frame + } + }; +} + impl JulietProtocol { /// Creates a new juliet protocol builder instance. /// @@ -558,6 +583,8 @@ impl JulietProtocol { Some(header) => header, None => { // The header was invalid, return an error. + #[cfg(feature = "tracing")] + tracing::trace!(?header_raw, "received invalid header"); return Fatal(OutgoingMessage::new( Header::new_error(ErrorKind::InvalidHeader, UNKNOWN_CHANNEL, UNKNOWN_ID), None, @@ -595,19 +622,16 @@ impl JulietProtocol { } buffer.advance(*preamble_end); - let payload = buffer.split_to(payload_length); + let payload = buffer.split_to(payload_length).freeze(); - #[cfg(feature = "tracing")] - { - use tracing::trace; - trace!(%header, "received error"); - } + log_frame!(header, payload); return Success(CompletedRead::ErrorReceived { header, - data: Some(payload.freeze()), + data: Some(payload), }); } _ => { + log_frame!(header); return Success(CompletedRead::ErrorReceived { header, data: None }); } } @@ -634,11 +658,7 @@ impl JulietProtocol { // incoming set. All we need to do now is to remove it from the buffer. buffer.advance(Header::SIZE); - #[cfg(feature = "tracing")] - { - use tracing::trace; - trace!(%header, "received request"); - } + log_frame!(header); return Success(CompletedRead::NewRequest { channel: header.channel(), id: header.id(), @@ -649,11 +669,7 @@ impl JulietProtocol { if !channel.outgoing_requests.remove(&header.id()) { return err_msg(header, ErrorKind::FictitiousRequest); } else { - #[cfg(feature = "tracing")] - { - use tracing::trace; - trace!(%header, "received response"); - } + log_frame!(header); return Success(CompletedRead::ReceivedResponse { channel: header.channel(), id: header.id(), @@ -781,12 +797,7 @@ impl JulietProtocol { } Kind::CancelResp => { if channel.outgoing_requests.remove(&header.id()) { - #[cfg(feature = "tracing")] - { - use tracing::trace; - trace!(%header, "received response cancellation"); - } - + log_frame!(header); return Success(CompletedRead::ResponseCancellation { channel: header.channel(), id: header.id(), @@ -806,6 +817,7 @@ impl JulietProtocol { /// received header with an appropriate error. #[inline(always)] fn err_msg(header: Header, kind: ErrorKind) -> Outcome { + log_frame!(header); Fatal(OutgoingMessage::new(header.with_err(kind), None)) } From 49030e6605cd7ce34c130e9bc65d84094c30c59a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 13:42:50 +0200 Subject: [PATCH 529/735] juliet: Fix logic inversion bug (duplicate requests check) and hidden early return causing inadvertent state change --- juliet/src/protocol.rs | 26 ++++++++++---------------- juliet/src/protocol/multiframe.rs | 2 +- 2 files changed, 11 insertions(+), 17 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 26ceebc9a9..f0c7beb561 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -649,7 +649,7 @@ impl JulietProtocol { return err_msg(header, ErrorKind::RequestLimitExceeded); } - if channel.incoming_requests.insert(header.id()) { + if !channel.incoming_requests.insert(header.id()) { return err_msg(header, ErrorKind::DuplicateRequest); } channel.increment_cancellation_allowance(); @@ -678,22 +678,9 @@ impl JulietProtocol { } } Kind::RequestPl => { - // First, we need to "gate" the incoming request; it only gets to bypass the request limit if it is already in progress: + // Make a note whether or not we are continueing an existing request. let is_new_request = channel.current_multiframe_receive.is_new_transfer(header); - if is_new_request { - // If we're in the ready state, requests must be eagerly rejected if - // exceeding the limit. - if channel.is_at_max_incoming_requests() { - return err_msg(header, ErrorKind::RequestLimitExceeded); - } - - // We also check for duplicate requests early to avoid reading them. - if channel.incoming_requests.contains(&header.id()) { - return err_msg(header, ErrorKind::DuplicateRequest); - } - }; - let multiframe_outcome: Option = try_outcome!(channel.current_multiframe_receive.accept( header, @@ -704,8 +691,15 @@ impl JulietProtocol { )); // If we made it to this point, we have consumed the frame. Record it. + if is_new_request { - if channel.incoming_requests.insert(header.id()) { + // Requests must be eagerly (first frame) rejected if exceeding the limit. + if channel.is_at_max_incoming_requests() { + return err_msg(header, ErrorKind::RequestLimitExceeded); + } + + // We also check for duplicate requests early to avoid reading them. + if !channel.incoming_requests.insert(header.id()) { return err_msg(header, ErrorKind::DuplicateRequest); } channel.increment_cancellation_allowance(); diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index b15696b4cc..f30c9fcc7c 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -46,7 +46,7 @@ impl MultiframeReceiver { /// /// If a message payload matching the given header has been succesfully completed, both header /// and payload are consumed from the `buffer`, the payload being returned. If a starting or - /// intermediate segment was processed without completing the message, both are still consume, + /// intermediate segment was processed without completing the message, both are still consumed, /// but `None` is returned instead. This method will never consume more than one frame. /// /// On any error, [`Outcome::Err`] with a suitable message to return to the sender is returned. From b94d956ff51386f557239a476397c2a3bfaef4d8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 15:25:47 +0200 Subject: [PATCH 530/735] juliet: Cleanup remaining compiler warnings --- juliet/src/io.rs | 17 +++----- juliet/src/protocol.rs | 2 +- juliet/src/protocol/outgoing_message.rs | 5 +-- juliet/src/rpc.rs | 2 +- juliet/src/util.rs | 52 +++++++++---------------- 5 files changed, 27 insertions(+), 51 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 7df3ffce04..d24fcce111 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -16,14 +16,13 @@ use std::{ use bimap::BiMap; use bytes::{Buf, Bytes, BytesMut}; -use futures::Stream; use portable_atomic::AtomicU128; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, sync::{ mpsc::{self, error::TryRecvError, UnboundedReceiver, UnboundedSender}, - AcquireError, OwnedSemaphorePermit, Semaphore, TryAcquireError, + OwnedSemaphorePermit, Semaphore, TryAcquireError, }, }; @@ -173,9 +172,6 @@ pub struct IoCore { request_map: BiMap, /// A set of channels whose wait queues should be checked again for data to send. dirty_channels: BTreeSet, - - /// Shared data across handles and [`IoCore`]. - shared: Arc>, } /// Shared data between a handles and the core itself. @@ -276,11 +272,6 @@ impl IoCoreBuilder { /// Builds a new [`IoCore`] with a single request handle. pub fn build(&self, reader: R, writer: W) -> (IoCore, RequestHandle) { let (sender, receiver) = mpsc::unbounded_channel(); - let shared = Arc::new(IoShared { - buffered_requests: array_init::map_array_init(&self.buffer_size, |&sz| { - Arc::new(Semaphore::new(sz)) - }), - }); let core = IoCore { juliet: self.protocol.build(), @@ -296,9 +287,13 @@ impl IoCoreBuilder { receiver, request_map: Default::default(), dirty_channels: Default::default(), - shared: shared.clone(), }; + let shared = Arc::new(IoShared { + buffered_requests: array_init::map_array_init(&self.buffer_size, |&sz| { + Arc::new(Semaphore::new(sz)) + }), + }); let handle = RequestHandle { shared, sender, diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index f0c7beb561..b6800f7be3 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -310,7 +310,7 @@ macro_rules! log_frame { #[cfg(feature = "tracing")] { use tracing::trace; - trace!(header=%$header, payload=%crate::util::tracing_support::PayloadFormat(&$payload), "received"); + trace!(header=%$header, payload=%crate::util::PayloadFormat(&$payload), "received"); } #[cfg(not(feature = "tracing"))] { diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 5f677d701d..c7919b9e76 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -208,10 +208,7 @@ impl Display for OutgoingFrame { let payload = self.0.last_ref(); if !payload.as_ref().is_empty() { - Display::fmt( - &crate::util::tracing_support::PayloadFormat(self.0.last_ref()), - f, - )?; + Display::fmt(&crate::util::PayloadFormat(self.0.last_ref()), f)?; } f.write_str(">") diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index c78f4da200..e3dd5aa95f 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -187,7 +187,7 @@ where payload, handle: Some(self.handle.clone()), })), - IoEvent::RequestCancelled { channel, id } => { + IoEvent::RequestCancelled { .. } => { // Request cancellation is currently not implemented; there is no // harm in sending the reply. }, diff --git a/juliet/src/util.rs b/juliet/src/util.rs index e2ed38f61a..98909d3f93 100644 --- a/juliet/src/util.rs +++ b/juliet/src/util.rs @@ -1,8 +1,12 @@ //! Miscellaneous utilities used across multiple modules. -use std::{marker::PhantomData, ops::Deref}; +use std::{ + fmt::{self, Display, Formatter}, + marker::PhantomData, + ops::Deref, +}; -use bytes::BytesMut; +use bytes::{Bytes, BytesMut}; /// Bytes offset with a lifetime. /// @@ -34,43 +38,23 @@ impl<'a> Index<'a> { } } -#[cfg(feature = "tracing")] -pub mod tracing_support { - //! Display helper for formatting messages in `tracing` log messages. - use std::fmt::{self, Display, Formatter}; +/// Pretty prints a single payload. +pub(crate) struct PayloadFormat<'a>(pub &'a Bytes); - use bytes::Bytes; +impl<'a> Display for PayloadFormat<'a> { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + let raw = self.0.as_ref(); - /// Pretty prints a single payload. - pub struct PayloadFormat<'a>(pub &'a Bytes); - - impl<'a> Display for PayloadFormat<'a> { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - let raw = self.0.as_ref(); - - for &byte in &raw[0..raw.len().min(16)] { - write!(f, "{:02x} ", byte)?; - } - - if raw.len() > 16 { - f.write_str("...")?; - } - - write!(f, " ({} bytes)", raw.len())?; + for &byte in &raw[0..raw.len().min(16)] { + write!(f, "{:02x} ", byte)?; + } - Ok(()) + if raw.len() > 16 { + f.write_str("...")?; } - } - /// Pretty prints an optional payload. - pub struct OptPayloadFormat<'a>(pub Option<&'a Bytes>); + write!(f, " ({} bytes)", raw.len())?; - impl<'a> Display for OptPayloadFormat<'a> { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - match self.0 { - None => f.write_str("(no payload)"), - Some(inner) => PayloadFormat(inner).fmt(f), - } - } + Ok(()) } } From 0feab4e644afb4284ca3e1fb68526ec61efd7eaf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 15:32:41 +0200 Subject: [PATCH 531/735] juliet: Fix all clippy warnings --- juliet/examples/fizzbuzz.rs | 2 +- juliet/src/header.rs | 40 ++++++-------- juliet/src/io.rs | 30 +++++------ juliet/src/protocol.rs | 72 +++++++++++-------------- juliet/src/protocol/multiframe.rs | 6 +-- juliet/src/protocol/outgoing_message.rs | 2 +- juliet/src/rpc.rs | 2 +- juliet/src/varint.rs | 5 +- 8 files changed, 69 insertions(+), 90 deletions(-) diff --git a/juliet/examples/fizzbuzz.rs b/juliet/examples/fizzbuzz.rs index 12a3c5cbd0..c8ad85238e 100644 --- a/juliet/examples/fizzbuzz.rs +++ b/juliet/examples/fizzbuzz.rs @@ -42,7 +42,7 @@ async fn main() { // Create the final RPC builder - we will use this on every connection. let rpc_builder = Box::leak(Box::new(RpcBuilder::new(io_builder))); - let mut args = std::env::args().into_iter(); + let mut args = std::env::args(); args.next().expect("did not expect missing argv0"); let is_server = args.next().map(|a| a == "server").unwrap_or_default(); diff --git a/juliet/src/header.rs b/juliet/src/header.rs index c322839697..da2f31ccb5 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -217,10 +217,7 @@ impl Header { #[inline] pub fn is_request(self) -> bool { if !self.is_error() { - match self.kind() { - Kind::Request | Kind::RequestPl => true, - _ => false, - } + matches!(self.kind(), Kind::Request | Kind::RequestPl) } else { false } @@ -351,13 +348,13 @@ mod tests { // Verify the `kind` and `err_kind` methods don't panic. if header.is_error() { - drop(header.error_kind()); + header.error_kind(); } else { - drop(header.kind()); + header.kind(); } // Verify `is_request` does not panic. - drop(header.is_request()); + header.is_request(); // Ensure `is_request` returns the correct value. if !header.is_error() { @@ -371,23 +368,20 @@ mod tests { #[proptest] fn fuzz_header(raw: [u8; Header::SIZE]) { - match Header::parse(raw) { - Some(header) => { - let rebuilt = if header.is_error() { - Header::new_error(header.error_kind(), header.channel(), header.id()) - } else { - Header::new(header.kind(), header.channel(), header.id()) - }; - - // Ensure reserved bits are zeroed upon reading. - let reencoded: [u8; Header::SIZE] = rebuilt.into(); - assert_eq!(rebuilt, header); - assert_eq!(reencoded, <[u8; Header::SIZE]>::from(header)); - } - None => { - // All good, simply failed to parse. - } + if let Some(header) = Header::parse(raw) { + let rebuilt = if header.is_error() { + Header::new_error(header.error_kind(), header.channel(), header.id()) + } else { + Header::new(header.kind(), header.channel(), header.id()) + }; + + // Ensure reserved bits are zeroed upon reading. + let reencoded: [u8; Header::SIZE] = rebuilt.into(); + assert_eq!(rebuilt, header); + assert_eq!(reencoded, <[u8; Header::SIZE]>::from(header)); } + + // Otherwise all good, simply failed to parse. } #[test] diff --git a/juliet/src/io.rs b/juliet/src/io.rs index d24fcce111..5294cb9b94 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -325,24 +325,18 @@ where // Simplify reasoning about this code. self.next_parse_at = 0; - loop { - match self.juliet.process_incoming(&mut self.buffer) { - Outcome::Incomplete(n) => { - // Simply reset how many bytes we need until the next parse. - self.next_parse_at = self.buffer.remaining() + n.get() as usize; - break; - } - Outcome::Fatal(err_msg) => { - // The remote messed up, begin shutting down due to an error. - self.inject_error(err_msg); - - // Stop processing incoming data. - break; - } - Outcome::Success(successful_read) => { - // Check if we have produced an event. - return self.handle_completed_read(successful_read).map(Some); - } + match self.juliet.process_incoming(&mut self.buffer) { + Outcome::Incomplete(n) => { + // Simply reset how many bytes we need until the next parse. + self.next_parse_at = self.buffer.remaining() + n.get() as usize; + } + Outcome::Fatal(err_msg) => { + // The remote messed up, begin shutting down due to an error. + self.inject_error(err_msg); + } + Outcome::Success(successful_read) => { + // Check if we have produced an event. + return self.handle_completed_read(successful_read).map(Some); } } } diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index b6800f7be3..3f9f959981 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -569,7 +569,7 @@ impl JulietProtocol { /// thus eventually freeing the data if not held elsewhere. pub fn process_incoming( &mut self, - mut buffer: &mut BytesMut, + buffer: &mut BytesMut, ) -> Outcome { // First, attempt to complete a frame. loop { @@ -608,9 +608,9 @@ impl JulietProtocol { // Create indices into buffer. let preamble_end = - Index::new(&buffer, Header::SIZE + parsed_length.offset.get() as usize); + Index::new(buffer, Header::SIZE + parsed_length.offset.get() as usize); let payload_length = parsed_length.value as usize; - let frame_end = Index::new(&buffer, *preamble_end + payload_length); + let frame_end = Index::new(buffer, *preamble_end + payload_length); // No multi-frame messages allowed! if *frame_end > self.max_frame_size as usize { @@ -684,7 +684,7 @@ impl JulietProtocol { let multiframe_outcome: Option = try_outcome!(channel.current_multiframe_receive.accept( header, - &mut buffer, + buffer, self.max_frame_size, channel.config.max_request_payload_size, ErrorKind::RequestTooLarge @@ -705,21 +705,18 @@ impl JulietProtocol { channel.increment_cancellation_allowance(); } - match multiframe_outcome { - Some(payload) => { - // Message is complete. - let payload = payload.freeze(); + if let Some(payload) = multiframe_outcome { + // Message is complete. + let payload = payload.freeze(); - return Success(CompletedRead::NewRequest { - channel: header.channel(), - id: header.id(), - payload: Some(payload), - }); - } - None => { - // We need more frames to complete the payload. Do nothing and attempt - // to read the next frame. - } + return Success(CompletedRead::NewRequest { + channel: header.channel(), + id: header.id(), + payload: Some(payload), + }); + } else { + // We need more frames to complete the payload. Do nothing and attempt + // to read the next frame. } } Kind::ResponsePl => { @@ -727,43 +724,36 @@ impl JulietProtocol { channel.current_multiframe_receive.is_new_transfer(header); // Ensure it is not a bogus response. - if is_new_response { - if !channel.outgoing_requests.contains(&header.id()) { - return err_msg(header, ErrorKind::FictitiousRequest); - } + if is_new_response && !channel.outgoing_requests.contains(&header.id()) { + return err_msg(header, ErrorKind::FictitiousRequest); } let multiframe_outcome: Option = try_outcome!(channel.current_multiframe_receive.accept( header, - &mut buffer, + buffer, self.max_frame_size, channel.config.max_response_payload_size, ErrorKind::ResponseTooLarge )); // If we made it to this point, we have consumed the frame. - if is_new_response { - if !channel.outgoing_requests.remove(&header.id()) { - return err_msg(header, ErrorKind::FictitiousRequest); - } + if is_new_response && !channel.outgoing_requests.remove(&header.id()) { + return err_msg(header, ErrorKind::FictitiousRequest); } - match multiframe_outcome { - Some(payload) => { - // Message is complete. - let payload = payload.freeze(); + if let Some(payload) = multiframe_outcome { + // Message is complete. + let payload = payload.freeze(); - return Success(CompletedRead::ReceivedResponse { - channel: header.channel(), - id: header.id(), - payload: Some(payload), - }); - } - None => { - // We need more frames to complete the payload. Do nothing and attempt - // to read the next frame. - } + return Success(CompletedRead::ReceivedResponse { + channel: header.channel(), + id: header.id(), + payload: Some(payload), + }); + } else { + // We need more frames to complete the payload. Do nothing and attempt + // to read the next frame. } } Kind::CancelReq => { diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index f30c9fcc7c..f36d3c5820 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -92,11 +92,11 @@ impl MultiframeReceiver { // We have a valid varint32. let preamble_size = Header::SIZE as u32 + payload_size.offset.get() as u32; - let max_data_in_frame = (max_frame_size - preamble_size) as u32; + let max_data_in_frame = max_frame_size - preamble_size; // Determine how many additional bytes are needed for frame completion. let frame_end = Index::new( - &buffer, + buffer, preamble_size as usize + (max_data_in_frame as usize).min(payload_size.value as usize), ); @@ -161,7 +161,7 @@ impl MultiframeReceiver { Success(None) } else { // End segment - let frame_end = Index::new(&buffer, bytes_remaining + Header::SIZE); + let frame_end = Index::new(buffer, bytes_remaining + Header::SIZE); // If we don't have the entire frame read yet, return. if *frame_end > buffer.remaining() { diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index c7919b9e76..b6162fa6d0 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -239,7 +239,7 @@ impl OutgoingFrame { #[inline(always)] fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { debug_assert!( - !preamble.payload_length.is_sentinel() || (payload.len() == 0), + !preamble.payload_length.is_sentinel() || payload.is_empty(), "frames without a payload must not contain a preamble with a payload length" ); diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index e3dd5aa95f..d021883162 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -131,7 +131,7 @@ impl JulietRpcClient { /// The returned builder can be used to create a single request on the given channel. pub fn create_request(&self, channel: ChannelId) -> JulietRpcRequestBuilder { JulietRpcRequestBuilder { - client: &self, + client: self, channel, payload: None, timeout: None, diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 68517d32cf..d9554ba220 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -89,7 +89,7 @@ impl Varint32 { while value > 0 { output[count] = value as u8 & VARINT_MASK; - value = value >> 7; + value >>= 7; if value > 0 { output[count] |= !VARINT_MASK; count += 1; @@ -102,6 +102,7 @@ impl Varint32 { /// Returns the number of bytes in the encoded varint. #[inline(always)] + #[allow(clippy::len_without_is_empty)] pub const fn len(self) -> usize { self.0[5] as usize } @@ -182,7 +183,7 @@ mod tests { while l > 1 { l -= 1; - let partial = &input.as_ref()[0..l]; + let partial = &input[0..l]; assert!(matches!(decode_varint32(partial), Outcome::Incomplete(n) if n.get() == 1)); } } From 4f2effed210baf6af8a77b2d85773bdf90509763 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 15:33:26 +0200 Subject: [PATCH 532/735] juliet: Explicitly name `tokio` as a dev dependency --- juliet/Cargo.toml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 7be179b57b..81889be827 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -16,7 +16,7 @@ tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } tracing = { version = "0.1.37", optional = true } [dev-dependencies] -tokio = { features = [ "net", "rt-multi-thread", "time" ] } +tokio = { version = "1.29.1", features = [ "net", "rt-multi-thread", "time" ] } proptest = "1.1.0" proptest-attr-macro = "1.0.0" proptest-derive = "0.3.0" From 74093eeda0fce538ce4bf5b64f114d1f27e68aa5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 15:35:07 +0200 Subject: [PATCH 533/735] juliet: Use `resolver = "2"` --- juliet/Cargo.toml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 81889be827..672e0e16de 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -3,6 +3,8 @@ name = "juliet" version = "0.1.0" edition = "2021" authors = [ "Marc Brinkmann " ] +# Ensures we do not pull in all the features of dev dependencies when building. +resolver = "2" [dependencies] array-init = "2.1.0" From dbd9d6ad963640de5c7152cefbcf1f3b3982de9d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 16:18:45 +0200 Subject: [PATCH 534/735] juliet: Go over everything except `io` and `rpc` modules and polish docs --- juliet/examples/fizzbuzz.rs | 21 ++++++++- juliet/src/header.rs | 3 ++ juliet/src/lib.rs | 24 +++++++--- juliet/src/protocol.rs | 59 +++++++++++++++++++------ juliet/src/protocol/outgoing_message.rs | 10 ++--- juliet/src/varint.rs | 6 +-- 6 files changed, 95 insertions(+), 28 deletions(-) diff --git a/juliet/examples/fizzbuzz.rs b/juliet/examples/fizzbuzz.rs index c8ad85238e..1c5e6f326c 100644 --- a/juliet/examples/fizzbuzz.rs +++ b/juliet/examples/fizzbuzz.rs @@ -1,4 +1,19 @@ -//! A juliet-based fizzbuzz server. +//! A juliet-based fizzbuzz server and client. +//! +//! To run this example, in one terminal, launch the server: +//! +//! ``` +//! cargo run --example fizzbuzz --features tracing -- server +//! ``` +//! +//! Then, in a second terminal launch the client: +//! +//! ``` +//! cargo run --example fizzbuzz --features tracing +//! ``` +//! +//! You should [Fizz buzz](https://en.wikipedia.org/wiki/Fizz_buzz) solutions being calculated on +//! the server side and sent back. use std::{fmt::Write, net::SocketAddr, time::Duration}; @@ -71,7 +86,7 @@ async fn main() { let (reader, writer) = remote_server.into_split(); let (client, mut server) = rpc_builder.build(reader, writer); - // We are not using the server functionality, but it still as to run. + // We are not using the server functionality, but still need to run it for IO reasons. tokio::spawn(async move { if let Err(err) = server.next_request().await { error!(%err, "server read error"); @@ -102,6 +117,7 @@ async fn main() { } } +/// Handles a incoming client connection. async fn handle_client( addr: SocketAddr, mut client: TcpStream, @@ -133,6 +149,7 @@ async fn handle_client( drop(client); } +/// Handles a single request made by a client (on the server). async fn handle_request(incoming_request: IncomingRequest) { let processing_time = rand::thread_rng().gen_range(5..20) * Duration::from_millis(100); tokio::time::sleep(processing_time).await; diff --git a/juliet/src/header.rs b/juliet/src/header.rs index da2f31ccb5..af029c9e55 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,4 +1,7 @@ //! `juliet` header parsing and serialization. +//! +//! This module is typically only used by the protocol implementation (see [`crate::protocol`]), but +//! may be of interested to those writing low level tooling. use std::fmt::{Debug, Display}; use bytemuck::{Pod, Zeroable}; diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 1e71d79d26..7dfad0f409 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,10 +1,24 @@ -//! A `juliet` protocol implementation. +#![doc = include_str!("../README.md")] + +//! +//! +//! ## General usage +//! +//! This crate is split into three layers, whose usage depends on an applications specific usecase. +//! At the very core sits the [`protocol`] module, which is a side-effect free implementation of the +//! protocol. The caller is responsible for all IO flowing in and out, but it instructed by the +//! state machine what to do next. +//! +//! If there is no need to roll custom IO, the [`io`] layer provides a complete `tokio`-based +//! solution that operates on [`tokio::io::AsyncRead`] and [`tokio::io::AsyncWrite`]. It handles +//! multiplexing input, output and scheduling, as well as buffering messages using a wait and a +//! ready queue. //! -//! This crate implements the juliet multiplexing protocol as laid out in the [juliet -//! RFC](https://github.com/marc-casperlabs/juliet-rfc/blob/master/juliet.md). It aims to be a -//! secure, simple, easy to verify/review implementation that is still reasonably performant. +//! Most users of the library will likely use the highest level layer, [`rpc`] instead. It sits on +//! top the raw [`io`] layer and wraps all the functionality in safe Rust types, making misuse of +//! the underlying protocol hard, if not impossible. -mod header; +pub mod header; pub mod io; pub mod protocol; pub mod rpc; diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 3f9f959981..f42ca6671d 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -6,7 +6,18 @@ //! //! ## Usage //! -//! TBW +//! An instance of [`JulietProtocol`] must be created using [`JulietProtocol::builder`], the +//! resulting builder can be used to fine-tune the configuration of the given protocol. The +//! parameter `N` denotes the number of valid channels, which must be set at compile time. See the +//! types documentation for more details. +//! +//! ## Efficiency +//! +//! In general, all bulky data used in the protocol is as zero-copy as possible, for example large +//! messages going out in multiple frames will still share the one original payload buffer passed in +//! at construction. The "exception" to this is the re-assembly of multi-frame messages, which +//! causes fragments to be copied once to form a continguous byte sequence for the payload to avoid +//! memory-exhaustion attacks based on the semtantics of the underlying [`bytes::BytesMut`]. mod multiframe; mod outgoing_message; @@ -41,12 +52,26 @@ const UNKNOWN_ID: Id = Id::new(0); /// A parser/state machine that processes an incoming stream and is able to construct messages to /// send out. /// +/// `N` denotes the number of valid channels, which should be fixed and agreed upon by both peers +/// prior to initialization. +/// +/// ## Input +/// /// This type does not handle IO, rather it expects a growing [`BytesMut`] buffer to be passed in, -/// containing incoming data. `N` denotes the number of valid channels, which should be fixed and -/// agreed upon by both peers prior to initialization. +/// containing incoming data, using the [`JulietProtocol::process_incoming`] method. +/// +/// ## Output +/// +/// Multiple methods create [`OutgoingMessage`] values: /// -/// Various methods for creating produce [`OutgoingMessage`] values, these should be converted into -/// frames (via [`OutgoingMessage::frames()`]) and the resulting frames sent to the peer. +/// * [`JulietProtocol::create_request`] +/// * [`JulietProtocol::create_response`] +/// * [`JulietProtocol::cancel_request`] +/// * [`JulietProtocol::cancel_response`] +/// * [`JulietProtocol::custom_error`] +/// +/// Their return types are usually converted into frames via [`OutgoingMessage::frames()`] and need +/// to be sent to the peer. #[derive(Debug)] pub struct JulietProtocol { /// Bi-directional channels. @@ -62,8 +87,8 @@ pub struct JulietProtocol { /// # Note /// /// Typically a single instance of the [`ProtocolBuilder`] can be kept around in an application -/// handling multiple connections, as its `build()` method can be reused for every new connection -/// instance. +/// handling multiple connections, as its [`ProtocolBuilder::build()`] method can be reused for +/// every new connection instance. #[derive(Debug)] pub struct ProtocolBuilder { /// Configuration for every channel. @@ -271,12 +296,15 @@ pub enum CompletedRead { /// /// A correct implementation of a client should never encounter this, thus simply unwrapping every /// instance of this as part of a `Result<_, LocalProtocolViolation>` is usually a valid choice. +/// +/// Higher level layers like [`rpc`] should make it impossible to encounter +/// [`LocalProtocolViolation`]s. #[derive(Copy, Clone, Debug, Error)] pub enum LocalProtocolViolation { /// A request was not sent because doing so would exceed the request limit on channel. /// /// Wait for addtional requests to be cancelled or answered. Calling - /// [`JulietProtocol::allowed_to_send_request()`] before hand is recommended. + /// [`JulietProtocol::allowed_to_send_request()`] beforehand is recommended. #[error("sending would exceed request limit")] WouldExceedRequestLimit, /// The channel given does not exist. @@ -285,11 +313,14 @@ pub enum LocalProtocolViolation { #[error("invalid channel")] InvalidChannel(ChannelId), /// The given payload exceeds the configured limit. + /// + /// See [`ChannelConfiguration::max_request_payload_size`] and + /// [`ChannelConfiguration::max_response_payload_size`] for details. #[error("payload exceeds configured limit")] PayloadExceedsLimit, /// The given error payload exceeds a single frame. /// - /// Error payloads may not span multiple frames. Short the error payload or increase frame size. + /// Error payloads may not span multiple frames, shorten the payload or increase frame size. #[error("error payload would be multi-frame")] ErrorPayloadIsMultiFrame, } @@ -322,8 +353,6 @@ macro_rules! log_frame { impl JulietProtocol { /// Creates a new juliet protocol builder instance. /// - /// All channels will initially be set to upload limits using `default_max_payload`. - /// /// # Panics /// /// Will panic if `max_frame_size` is too small to hold header and payload length encoded, i.e. @@ -556,8 +585,8 @@ impl JulietProtocol { /// /// * [`Outcome::Success`] indicates `process_incoming` should be called again as early as /// possible, since additional messages may already be contained in `buffer`. - /// * [`Outcome::Incomplete(n)`] tells the caller to not call `process_incoming` again before at - /// least `n` additional bytes have been added to bufer. + /// * [`Outcome::Incomplete`] tells the caller to not call `process_incoming` again before at + /// least `n` additional bytes have been added to buffer. /// * [`Outcome::Fatal`] indicates that the remote peer violated the protocol, the returned /// [`Header`] should be attempted to be sent to the peer before the connection is being /// closed. @@ -567,6 +596,10 @@ impl JulietProtocol { /// /// Any successful frame read will cause `buffer` to be advanced by the length of the frame, /// thus eventually freeing the data if not held elsewhere. + /// + /// **Important**: This functions `Err` value is an [`OutgoingMessage`] to be sent to the peer. + /// It must be the final message sent and should be sent as soon as possible, with the + /// connection being close afterwards. pub fn process_incoming( &mut self, buffer: &mut BytesMut, diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index b6162fa6d0..7ff05f1913 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -143,13 +143,14 @@ pub struct FrameIter { impl FrameIter { /// Returns the next frame to send. /// - /// Will return `Some(self)` is there are additional frames to send, `None` otherwise. + /// Will return the next frame, and `Some(self)` is there are additional frames to send to + /// complete the message, `None` otherwise. /// /// # Note /// /// While different [`OutgoingMessage`]s can have their send order mixed or interspersed, a - /// caller MUST NOT send [`OutgoingFrame`]s in any order but the one produced by this method. - /// In other words, reorder messages, but not frames within a message. + /// caller MUST NOT send [`OutgoingFrame`]s of a single messagw in any order but the one + /// produced by this method. In other words, reorder messages, but not frames within a message. pub fn next_owned(mut self, max_frame_size: u32) -> (OutgoingFrame, Option) { if let Some(ref payload) = self.msg.payload { let mut payload_remaining = payload.len() - self.bytes_processed; @@ -194,8 +195,7 @@ impl FrameIter { /// A single frame to be sent. /// -/// An [`OutgoingFrame`] implements [`bytes::Buf`], which will yield the bytes necessary to send it -/// across the wire to a peer. +/// Implements [`bytes::Buf`], which will yield the bytes to send it across the wire to a peer. #[derive(Debug)] #[repr(transparent)] #[must_use] diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index d9554ba220..145f23e11d 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -1,7 +1,7 @@ //! Variable length integer encoding. //! //! This module implements the variable length encoding of 32 bit integers, as described in the -//! juliet RFC. +//! juliet RFC, which is 1-5 bytes in length for any `u32`. use std::{ fmt::Debug, @@ -56,7 +56,7 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { /// An encoded varint32. /// /// Internally these are stored as six byte arrays to make passing around convenient. Since the -/// maximum length a 32 bit varint can posses is 5 bytes, the 6th bytes is used to record the +/// maximum length a 32 bit varint can posses is 5 bytes, the 6th byte is used to record the /// length. #[repr(transparent)] #[derive(Copy, Clone, Pod, Zeroable)] @@ -82,7 +82,7 @@ impl Varint32 { /// The maximum encoded length of a [`Varint32`]. pub const MAX_LEN: usize = 5; - /// Encode a 32-bit integer to variable length. + /// Encodes a 32-bit integer to variable length. pub const fn encode(mut value: u32) -> Self { let mut output = [0u8; 6]; let mut count = 0; From 4293d21bb774bf12df034ebbd525287261129de0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 16:48:51 +0200 Subject: [PATCH 535/735] juliet: Finish documentation for the `io` module --- juliet/src/io.rs | 79 ++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 69 insertions(+), 10 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 5294cb9b94..777473960b 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -6,7 +6,23 @@ //! layer to send messages across over multiple channels, without having to worry about frame //! multiplexing or request limits. //! -//! See [`IoCore`] for more information about how to use this module. +//! ## Usage +//! +//! Most, if not all functionality is provided by the [`IoCore`] type, which constructed +//! using an [`IoCoreBuilder`] (see [`IoCoreBuilder::new`]). Similarly to [`JulietProtocol`] the +//! `N` denotes the number of predefined channels. +//! +//! ## Incoming data +//! +//! Once instantiated, the [`IoCore`] **must** have its [`IoCore::next_event`] function called +//! continuously, see its documentation for details. Doing so will also yield all incoming events +//! and data. +//! +//! ## Outgoing data +//! +//! The [`RequestHandle`] provided by [`IoCoreBuilder::build`] is used to send requests to the peer. +//! It should also be kept around even if no requests are sent, as dropping it is used to signal the +//! [`IoCore`] to close the connection. use std::{ collections::{BTreeSet, VecDeque}, @@ -96,7 +112,10 @@ impl QueuedItem { } } -/// [`IoCore`] error. +/// [`IoCore`] event processing error. +/// +/// A [`CoreError`] always indicates that the underlying [`IoCore`] has encountered a fatal error +/// and no further communication should take part. #[derive(Debug, Error)] pub enum CoreError { /// Failed to read from underlying reader. @@ -105,7 +124,7 @@ pub enum CoreError { /// Failed to write using underlying writer. #[error("write failed")] WriteFailed(#[source] io::Error), - /// Remote peer disconnecting due to error. + /// Remote peer will/has disconnect(ed), but sent us an error message before. #[error("remote peer sent error [channel {}/id {}]: {} (payload: {} bytes)", header.channel(), header.id(), @@ -189,6 +208,8 @@ struct IoShared { } /// Events produced by the IO layer. +/// +/// Every event must be handled, see event details on how to do so. #[derive(Debug)] #[must_use] pub enum IoEvent { @@ -196,10 +217,10 @@ pub enum IoEvent { /// /// Eventually a received request must be handled by one of the following: /// - /// * A response sent (through [`IoHandle::enqueue_response`]). - /// * A response cancellation sent (through [`IoHandle::enqueue_response_cancellation`]). + /// * A response sent (through [`Handle::enqueue_response`]). + /// * A response cancellation sent (through [`Handle::enqueue_response_cancellation`]). /// * The connection being closed, either regularly or due to an error, on either side. - /// * The reception of an [`IoEvent::RequestCancellation`] with the same ID and channel. + /// * The reception of an [`IoEvent::RequestCancelled`] with the same ID and channel. NewRequest { /// Channel the new request arrived on. channel: ChannelId, @@ -269,7 +290,10 @@ impl IoCoreBuilder { self } - /// Builds a new [`IoCore`] with a single request handle. + /// Builds a new [`IoCore`] with a [`RequestHandle`]. + /// + /// See [`IoCore::next_event`] for details on how to handle the core. The [`RequestHandle`] can + /// be used to send requests. pub fn build(&self, reader: R, writer: W) -> (IoCore, RequestHandle) { let (sender, receiver) = mpsc::unbounded_channel(); @@ -313,10 +337,10 @@ where /// /// This is the central loop of the IO layer. It polls all underlying transports and reads/write /// if data is available, until enough processing has been done to produce an [`IoEvent`]. Thus - /// any application using the IO layer should loop over calling this function, or call - /// `[IoCore::into_stream]` to process it using the standard futures stream interface. + /// any application using the IO layer should loop over calling this function. /// - /// Polling of this function should continue until `Err(_)` or `Ok(None)` is returned. + /// Polling of this function must continue only until `Err(_)` or `Ok(None)` is returned, + /// indicating that the connection should be closed or has been closed. pub async fn next_event(&mut self) -> Result, CoreError> { loop { self.process_dirty_channels()?; @@ -709,6 +733,13 @@ fn item_should_wait( /// /// The handle is roughly three pointers in size and can be cloned at will. Dropping the last handle /// will cause the [`IoCore`] to shutdown and close the connection. +/// +/// ## Sending requests +/// +/// To send a request, a holder of this handle must first reserve a slot in the memory buffer of the +/// [`IoCore`] using either [`RequestHandle::try_reserve_request`] or +/// [`RequestHandle::reserve_request`], then [`RequestHandle::downgrade`] this request handle to a +/// regular [`Handle`] and [`Handle::enqueue_request`] with the given [`RequestTicket`]. #[derive(Clone, Debug)] pub struct RequestHandle { /// Shared portion of the [`IoCore`], required for backpressuring onto clients. @@ -722,6 +753,18 @@ pub struct RequestHandle { next_io_id: Arc, } +/// Simple [`IoCore`] handle. +/// +/// Functions similarly to [`RequestHandle`], but has a no capability of creating new requests, as +/// it lacks access to the internal [`IoId`] generator. +/// +/// Like [`RequestHandle`], the existance of this handle will keep [`IoCore`] alive; dropping the +/// last one will shut it down. +/// +/// ## Usage +/// +/// To send any sort of message, response, cancellation or error, use one of the `enqueue_*` +/// methods. The [`io`] layer does some, but not complete bookkeeping, if a complete solution is required, use the [`rpc`](crate::rpc) layer instead. #[derive(Clone, Debug)] #[repr(transparent)] pub struct Handle { @@ -743,15 +786,28 @@ pub enum EnqueueError { LocalProtocolViolation(#[from] LocalProtocolViolation), } +/// A reserved slot in the memory buffer of [`IoCore`], on a specific channel. +/// +/// Dropping the ticket will free up the slot again. #[derive(Debug)] pub struct RequestTicket { + /// Channel the slot is reserved in. channel: ChannelId, + /// The semaphore permit that makes it work. permit: OwnedSemaphorePermit, + /// Pre-allocated [`IoId`]. io_id: IoId, } +/// A failure to reserve a slot in the queue. pub enum ReservationError { + /// No buffer space available. + /// + /// The caller is free to retry later. NoBufferSpaceAvailable, + /// Connection closed. + /// + /// The [`IoCore`] has shutdown or is shutting down, it is no longer possible to reserve slots. Closed, } @@ -792,6 +848,7 @@ impl RequestHandle { .ok() } + /// Downgrades a [`RequestHandle`] to a [`Handle`]. #[inline(always)] pub fn downgrade(self) -> Handle { Handle { @@ -805,6 +862,8 @@ impl Handle { /// /// Returns an [`IoId`] that can be used to refer to the request if successful. Returns the /// payload as an error if the underlying IO layer has been closed. + /// + /// See [`RequestHandle`] for details on how to obtain a [`RequestTicket`]. #[inline] pub fn enqueue_request( &mut self, From e1aab9c4e1a8f9c76aaa7ea1915dd397d75b71ae Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 17:09:27 +0200 Subject: [PATCH 536/735] juliet: Return builder to allow for retrying send in request builder --- juliet/src/rpc.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index d021883162..2053c6d3e1 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -276,20 +276,20 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { } /// Schedules a new request on an outgoing channel if space is available. - pub fn try_queue_for_sending(self) -> Option { + pub fn try_queue_for_sending(self) -> Result { let ticket = match self.client.request_handle.try_reserve_request(self.channel) { Ok(ticket) => ticket, Err(ReservationError::Closed) => { - return Some(RequestGuard::new_error(RequestError::RemoteClosed( + return Ok(RequestGuard::new_error(RequestError::RemoteClosed( self.payload, ))); } Err(ReservationError::NoBufferSpaceAvailable) => { - return None; + return Err(self); } }; - Some(self.do_enqueue_request(ticket)) + Ok(self.do_enqueue_request(ticket)) } #[inline(always)] From 0d70cfeb08d9f644bb3efe0efaa0ac424631f1ca Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 13 Jul 2023 18:52:40 +0200 Subject: [PATCH 537/735] juliet: Complete `rpc` docs --- juliet/src/rpc.rs | 124 ++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 110 insertions(+), 14 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 2053c6d3e1..03adc4743d 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -1,7 +1,23 @@ //! RPC layer. //! -//! The outermost layer of the `juliet` stack, combines the underlying IO and protocol primites into -//! a convenient, type safe RPC system. +//! The outermost layer of the `juliet` stack, combines the underlying [`io`] and [`protocol`] +//! layers into a convenient RPC system. +//! +//! The term RPC is used somewhat inaccurately here, as the crate does _not_ deal with the actual +//! method calls or serializing arguments, but only provides the underlying request/response system. +//! +//! ## Usage +//! +//! The RPC system is configured by setting up an [`RpcBuilder`], which in turn requires an +//! [`IoCoreBuilder`] and [`ProtocolBuilder`](crate::protocol::ProtocolBuilder) (see the +//! [`io`](crate::io) and [`protocol`](crate::protocol) module documentation for details), with `N` +//! denoting the number of preconfigured channels. +//! +//! Once a connection has been established, [`RpcBuilder::build`] is used to construct a +//! [`JulietRpcClient`] and [`JulietRpcServer`] pair, the former being used use to make remote +//! procedure calls, while latter is used to answer them. Note that +//! [`JulietRpcServer::next_request`] must continuously be called regardless of whether requests are +//! handled locally, since the function is also responsible for performing the underlying IO. use std::{ collections::HashMap, @@ -70,12 +86,19 @@ impl RpcBuilder { /// Juliet RPC client. /// -/// The client is used to create new RPC calls. +/// The client is used to create new RPC calls through [`JulietRpcClient::create_request`]. +#[derive(Debug)] pub struct JulietRpcClient { new_request_sender: UnboundedSender, request_handle: RequestHandle, } +/// Builder for an outgoing RPC request. +/// +/// Once configured, it can be sent using either +/// [`queue_for_sending`](JulietRpcRequestBuilder::queue_for_sending) or +/// [`try_queue_for_sending`](JulietRpcRequestBuilder::try_queue_for_sending), returning a +/// [`RequestGuard`], which can be used to await the results of the request. pub struct JulietRpcRequestBuilder<'a, const N: usize> { client: &'a JulietRpcClient, channel: ChannelId, @@ -85,7 +108,13 @@ pub struct JulietRpcRequestBuilder<'a, const N: usize> { /// Juliet RPC Server. /// -/// The server's sole purpose is to handle incoming RPC calls. +/// The server's purpose is to produce incoming RPC calls and run the underlying IO layer. For this +/// reason it is important to repeatedly call [`next_request`](Self::next_request), see the method +/// documentation for details. +/// +/// ## Shutdown +/// +/// The server will automatically be shutdown if the last [`JulietRpcClient`] is dropped. pub struct JulietRpcServer { core: IoCore, handle: Handle, @@ -139,9 +168,11 @@ impl JulietRpcClient { } } +/// An error produced by the RPC error. #[derive(Debug, Error)] pub enum RpcServerError { + /// An [`IoCore`] error. #[error(transparent)] CoreError(#[from] CoreError), } @@ -151,6 +182,19 @@ where R: AsyncRead + Unpin, W: AsyncWrite + Unpin, { + /// Produce the next request from the peer. + /// + /// Runs the underlying IO until another [`NewRequest`] has been produced by the remote peer. On + /// success, this function should be called again immediately. + /// + /// On a regular shutdown (`None` returned) or an error ([`RpcServerError`] returned), a caller + /// must stop calling [`next_request`](Self::next_request) and shoudl drop the entire + /// [`JulietRpcServer`]. + /// + /// **Important**: Even if the local peer is not intending to handle any requests, this function + /// must still be called, since it drives the underlying IO system. It is also highly recommend + /// to offload the actual handling of requests to a separate task and return to calling + /// `next_request` as soon as possible. pub async fn next_request(&mut self) -> Result, RpcServerError> { loop { tokio::select! { @@ -244,12 +288,18 @@ impl Drop for JulietRpcServer { impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// Sets the payload for the request. + /// + /// By default, no payload is included. pub fn with_payload(mut self, payload: Bytes) -> Self { self.payload = Some(payload); self } /// Sets the timeout for the request. + /// + /// By default, there is an infinite timeout. + /// + /// **TODO**: Currently the timeout feature is not implemented. pub fn with_timeout(mut self, timeout: Duration) -> Self { self.timeout = Some(timeout); self @@ -257,7 +307,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// Schedules a new request on an outgoing channel. /// - /// Blocks until space to store it is available. + /// If there is no buffer space available for the request, blocks until there is. pub async fn queue_for_sending(self) -> RequestGuard { let ticket = match self .client @@ -276,6 +326,9 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { } /// Schedules a new request on an outgoing channel if space is available. + /// + /// If no space is available, returns the [`JulietRpcRequestBuilder`] as an `Err` value, so it + /// can be retried later. pub fn try_queue_for_sending(self) -> Result { let ticket = match self.client.request_handle.try_reserve_request(self.channel) { Ok(ticket) => ticket, @@ -310,35 +363,58 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { } /// An RPC request error. +/// +/// Describes the reason a request did not yield a response. #[derive(Clone, Debug, Error)] pub enum RequestError { /// Remote closed, could not send. + /// + /// The request was never sent out, since the underlying [`IoCore`] was already shut down when + /// it was made. #[error("remote closed connection before request could be sent")] RemoteClosed(Option), /// Sent, but never received a reply. + /// + /// Request was sent, but we never received anything back before the [`IoCore`] was shut down. #[error("never received reply before remote closed connection")] Shutdown, /// Local timeout. + /// + /// The request was cancelled on our end due to a timeout. #[error("request timed out ")] TimedOut, - /// Remote said "no". + /// Remove responsed with cancellation. + /// + /// Instead of sending a response, the remote sent a cancellation. #[error("remote cancelled our request")] RemoteCancelled, /// Cancelled locally. + /// + /// Request was cancelled on our end. #[error("request cancelled locally")] Cancelled, /// API misuse + /// + /// Either the API was misued, or a bug in this crate appeared. #[error("API misused or other internal error")] Error(LocalProtocolViolation), } +/// Handle to an in-flight outgoing request. +/// +/// The existance of a [`RequestGuard`] indicates that a request has been made or is on-going. It +/// can also be used to attempt to [`cancel`](RequestGuard::cancel) the request, or retrieve its +/// values using [`wait_for_response`](RequestGuard::wait_for_response) or +/// [`try_wait_for_response`](RequestGuard::try_wait_for_response). #[derive(Debug)] #[must_use = "dropping the request guard will immediately cancel the request"] pub struct RequestGuard { + /// Shared reference to outcome data. inner: Arc, } impl RequestGuard { + /// Creates a new request guard with no shared data that is already resolved to an error. fn new_error(error: RequestError) -> Self { let outcome = OnceLock::new(); outcome @@ -352,9 +428,10 @@ impl RequestGuard { } } - /// Cancels the request, causing it to not be sent if it is still in the queue. + /// Cancels the request. /// - /// No response will be available for the request, any call to `wait_for_finish` will result in an error. + /// May cause the request to not be sent if it is still in the queue, or a cancellation to be + /// sent if it already left the local machine. pub fn cancel(mut self) { self.do_cancel(); @@ -362,18 +439,27 @@ impl RequestGuard { } fn do_cancel(&mut self) { + // TODO: Implement eager cancellation locally, potentially removing this request from the + // outbound queue. // TODO: Implement actual sending of the cancellation. } /// Forgets the request was made. /// - /// Any response will be accepted, but discarded. + /// Similar [`cancel`](Self::cancel), except that it will not cause an actual cancellation, so + /// the peer will likely perform all the work. The response will be discarded. pub fn forget(self) { - // TODO: Implement eager cancellation locally, potentially removing this request from the - // outbound queue. + // Just do nothing. } - /// Waits for the response to come back. + /// Waits for a response to come back. + /// + /// Blocks until a response, cancellation or error has been received for this particular + /// request. + /// + /// If a response has been received, the optional [`Bytes`] of the payload will be returned. + /// + /// On an error, including a cancellation by the remote, returns a [`RequestError`]. pub async fn wait_for_response(self) -> Result, RequestError> { // Wait for notification. if let Some(ref ready) = self.inner.ready { @@ -384,6 +470,9 @@ impl RequestGuard { } /// Waits for the response, non-blockingly. + /// + /// Like [`wait_for_response`](Self::wait_for_response), except that instead of waiting, it will + /// return `Err(self)` if the peer was not ready yet. pub fn try_wait_for_response(self) -> Result, RequestError>, Self> { if self.inner.outcome.get().is_some() { Ok(self.take_inner()) @@ -413,8 +502,12 @@ impl Drop for RequestGuard { /// An incoming request from a peer. /// /// Every request should be answered using either the [`IncomingRequest::cancel()`] or -/// [`IncomingRequest::respond()`] methods. If dropped, [`IncomingRequest::cancel()`] is called -/// automatically. +/// [`IncomingRequest::respond()`] methods. +/// +/// ## Automatic cleanup +/// +/// If dropped, [`IncomingRequest::cancel()`] is called automatically, which will cause a +/// cancellation to be sent. #[derive(Debug)] pub struct IncomingRequest { /// Channel the request was sent on. @@ -443,6 +536,9 @@ impl IncomingRequest { } /// Enqueue a response to be sent out. + /// + /// The response will contain the specified `payload`, sent on a best effort basis. Responses + /// will never be rejected on a basis of memory. #[inline] pub fn respond(mut self, payload: Option) { if let Some(handle) = self.handle.take() { From cf0803fd287a1e7f3defc3594cf1d0793f5c3a06 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Jul 2023 13:43:01 +0200 Subject: [PATCH 538/735] juliet: Remove resolver that has no effect --- juliet/Cargo.toml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 672e0e16de..a261e243e0 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -4,7 +4,8 @@ version = "0.1.0" edition = "2021" authors = [ "Marc Brinkmann " ] # Ensures we do not pull in all the features of dev dependencies when building. -resolver = "2" +# Note: Would have to be moved to workspace root. +# resolver = "2" [dependencies] array-init = "2.1.0" From 117b2684d772f708fea11712c66aef5be164dbeb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Jul 2023 15:40:44 +0200 Subject: [PATCH 539/735] juliet: Add missing `README.md` --- juliet/README.md | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 juliet/README.md diff --git a/juliet/README.md b/juliet/README.md new file mode 100644 index 0000000000..44b2401fe8 --- /dev/null +++ b/juliet/README.md @@ -0,0 +1,23 @@ +# `juliet` protocol implementation + +This crate implements the juliet multiplexing protocol as laid out in the [Juliet RFC](https://github.com/marc-casperlabs/juliet-rfc/blob/master/juliet.md). It aims to be a secure, simple, easy to verify/review implementation that is still reasonably performant. + +## Benefits + + The Juliet protocol comes with a core set of features, such as + +* carefully designed with security and DoS resilience as its foremoast goal, +* customizable frame sizes, +* up to 256 multiplexed, interleaved channels, +* backpressure support fully baked in, and +* low overhead (4 bytes per frame + 1-5 bytes depending on payload length). + +This crate's implementation includes benefits such as + +* a side-effect free implementation of the Juliet protocol, +* an `async` IO layer integrated with the [`bytes`](https://docs.rs/bytes) crate to use it, and +* a type-safe RPC layer built on top. + +## Examples + +For a quick usage example, see `examples/fizzbuzz.rz`. From 1a287e54efaf5772a7e7bc27299c86334fae73a7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Jul 2023 15:47:08 +0200 Subject: [PATCH 540/735] juliet: Add script to generate coverage report --- juliet/.gitignore | 2 ++ juliet/coverage.sh | 11 +++++++++++ 2 files changed, 13 insertions(+) create mode 100644 juliet/.gitignore create mode 100755 juliet/coverage.sh diff --git a/juliet/.gitignore b/juliet/.gitignore new file mode 100644 index 0000000000..0df6c7d69b --- /dev/null +++ b/juliet/.gitignore @@ -0,0 +1,2 @@ +coverage/ +lcov.info diff --git a/juliet/coverage.sh b/juliet/coverage.sh new file mode 100755 index 0000000000..427ff4dbf6 --- /dev/null +++ b/juliet/coverage.sh @@ -0,0 +1,11 @@ +#!/bin/sh +# coverage.sh: Runs a coverage utility +# +# Requires cargo-tarpaulin and lcov to be installed. +# You can install ryanluker.vscode-coverage-gutters in VSCode to visualize missing coverage. + +set -e + +cargo tarpaulin -r . --exclude-files '../**' --exclude-files 'examples' --out lcov +mkdir -p coverage +genhtml -o coverage lcov.info From 1943156cf3305811c6ad46c81e36d1e1544a5ed5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Jul 2023 15:58:31 +0200 Subject: [PATCH 541/735] juliet: Use `Llvm` engine for code coverage --- juliet/coverage.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/coverage.sh b/juliet/coverage.sh index 427ff4dbf6..81be9fff22 100755 --- a/juliet/coverage.sh +++ b/juliet/coverage.sh @@ -6,6 +6,6 @@ set -e -cargo tarpaulin -r . --exclude-files '../**' --exclude-files 'examples' --out lcov +cargo tarpaulin --engine Llvm -r . --exclude-files '../**' --exclude-files 'examples' --out lcov mkdir -p coverage genhtml -o coverage lcov.info From 7817187d877d60b04eafe9b88b203ca5b7e5bff8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Jul 2023 17:11:50 +0200 Subject: [PATCH 542/735] juliet: Ensure sufficient number of iterations for coverage generation in testing --- juliet/coverage.sh | 3 +++ 1 file changed, 3 insertions(+) diff --git a/juliet/coverage.sh b/juliet/coverage.sh index 81be9fff22..5075100cdf 100755 --- a/juliet/coverage.sh +++ b/juliet/coverage.sh @@ -6,6 +6,9 @@ set -e +# Try to make sure there is reasonable coverage on fuzzed tests. +export PROPTEST_CASES=10000 + cargo tarpaulin --engine Llvm -r . --exclude-files '../**' --exclude-files 'examples' --out lcov mkdir -p coverage genhtml -o coverage lcov.info From f7fd244c687bf273896fbe0fb9facc1aa29f7d79 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 14 Jul 2023 17:21:32 +0200 Subject: [PATCH 543/735] juliet: Bring code coverage in `header.js` to 100% --- juliet/src/header.rs | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index af029c9e55..4483dcf86d 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -49,7 +49,7 @@ impl Display for Header { } /// Error kind, from the kind byte. -#[derive(Copy, Clone, Debug, Error)] +#[derive(Copy, Clone, Debug, Error, Eq, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] pub enum ErrorKind { @@ -382,6 +382,12 @@ mod tests { let reencoded: [u8; Header::SIZE] = rebuilt.into(); assert_eq!(rebuilt, header); assert_eq!(reencoded, <[u8; Header::SIZE]>::from(header)); + + // Ensure display/debug don't panic. + assert_eq!(format!("{}", header), format!("{:?}", header)); + + // Check bytewise it is the same. + assert_eq!(&reencoded[..], header.as_ref()); } // Otherwise all good, simply failed to parse. @@ -398,6 +404,15 @@ mod tests { assert!(Header::parse(raw).is_some()); } + #[test] + fn header_parsing_fails_if_kind_out_of_range() { + let invalid_err_header = [0b1000_1111, 00, 00, 00]; + assert_eq!(Header::parse(invalid_err_header), None); + + let invalid_ok_header = [0b0000_0111, 00, 00, 00]; + assert_eq!(Header::parse(invalid_ok_header), None); + } + #[test] fn ensure_zeroed_header_works() { assert_eq!( @@ -405,4 +420,14 @@ mod tests { Header::new(Kind::Request, ChannelId(0), Id(0)) ) } + + #[proptest] + fn err_header_construction(header: Header, error_kind: ErrorKind) { + let combined = header.with_err(error_kind); + + assert_eq!(header.channel(), combined.channel()); + assert_eq!(header.id(), combined.id()); + assert!(combined.is_error()); + assert_eq!(combined.error_kind(), error_kind); + } } From 8367bb676e71d7aee2467a2188ab8c7cdf911e45 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 17 Jul 2023 16:23:12 +0200 Subject: [PATCH 544/735] juliet: Fix warnings in documentation --- juliet/src/io.rs | 2 +- juliet/src/lib.rs | 2 +- juliet/src/protocol.rs | 6 +++--- juliet/src/rpc.rs | 12 ++++++++---- 4 files changed, 13 insertions(+), 9 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 777473960b..fe17709de9 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -1,7 +1,7 @@ //! `juliet` IO layer //! //! The IO layer combines a lower-level transport like a TCP Stream with the -//! [`JulietProtocol`](crate::juliet::JulietProtocol) protocol implementation and some memory +//! [`JulietProtocol`](crate::protocol::JulietProtocol) protocol implementation and some memory //! buffers to provide a working high-level transport for juliet messages. It allows users of this //! layer to send messages across over multiple channels, without having to worry about frame //! multiplexing or request limits. diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 7dfad0f409..8e635acdb7 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -157,7 +157,7 @@ impl Outcome { /// `try!` for [`Outcome`]. /// -/// Will pass [`Outcome::Incomplete`] and [`Outcome::Err`] upwards, or unwrap the value found in +/// Will pass [`Outcome::Incomplete`] and [`Outcome::Fatal`] upwards, or unwrap the value found in /// [`Outcome::Success`]. #[macro_export] macro_rules! try_outcome { diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index f42ca6671d..db6632c6e0 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -297,7 +297,7 @@ pub enum CompletedRead { /// A correct implementation of a client should never encounter this, thus simply unwrapping every /// instance of this as part of a `Result<_, LocalProtocolViolation>` is usually a valid choice. /// -/// Higher level layers like [`rpc`] should make it impossible to encounter +/// Higher level layers like [`rpc`](crate::rpc) should make it impossible to encounter /// [`LocalProtocolViolation`]s. #[derive(Copy, Clone, Debug, Error)] pub enum LocalProtocolViolation { @@ -314,8 +314,8 @@ pub enum LocalProtocolViolation { InvalidChannel(ChannelId), /// The given payload exceeds the configured limit. /// - /// See [`ChannelConfiguration::max_request_payload_size`] and - /// [`ChannelConfiguration::max_response_payload_size`] for details. + /// See [`ChannelConfiguration::with_max_request_payload_size()`] and + /// [`ChannelConfiguration::with_max_response_payload_size()`] for details. #[error("payload exceeds configured limit")] PayloadExceedsLimit, /// The given error payload exceeds a single frame. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 03adc4743d..fb541f4d43 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -1,7 +1,7 @@ //! RPC layer. //! -//! The outermost layer of the `juliet` stack, combines the underlying [`io`] and [`protocol`] -//! layers into a convenient RPC system. +//! The outermost layer of the `juliet` stack, combines the underlying [`io`](crate::io) and +//! [`protocol`](crate::protocol) layers into a convenient RPC system. //! //! The term RPC is used somewhat inaccurately here, as the crate does _not_ deal with the actual //! method calls or serializing arguments, but only provides the underlying request/response system. @@ -122,9 +122,13 @@ pub struct JulietRpcServer { new_requests_receiver: UnboundedReceiver, } +/// Internal structure representing a new outgoing request. struct NewRequest { + /// The already reserved ticket. ticket: RequestTicket, + /// Request guard to store results. guard: Arc, + /// Payload of the request. payload: Option, } @@ -184,8 +188,8 @@ where { /// Produce the next request from the peer. /// - /// Runs the underlying IO until another [`NewRequest`] has been produced by the remote peer. On - /// success, this function should be called again immediately. + /// Runs the underlying IO until another [`IncomingRequest`] has been produced by the remote + /// peer. On success, this function should be called again immediately. /// /// On a regular shutdown (`None` returned) or an error ([`RpcServerError`] returned), a caller /// must stop calling [`next_request`](Self::next_request) and shoudl drop the entire From 8ceafbb2d1da87f8bfe9396a0b7b5b6fb481bf52 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 18 Jul 2023 11:06:51 +0200 Subject: [PATCH 545/735] juliet: Exclude `proptest-regressions` --- juliet/Cargo.toml | 1 + 1 file changed, 1 insertion(+) diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index a261e243e0..29b023320a 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -6,6 +6,7 @@ authors = [ "Marc Brinkmann " ] # Ensures we do not pull in all the features of dev dependencies when building. # Note: Would have to be moved to workspace root. # resolver = "2" +exclude = [ "proptest-regressions" ] [dependencies] array-init = "2.1.0" From 17bf04ac91e8b7b2d2f98f84f1ce5223e541568b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 18 Jul 2023 11:12:40 +0200 Subject: [PATCH 546/735] juliet: Fixed various grammatical and spelling errors indicated by @Fraser999 --- juliet/README.md | 6 +++--- juliet/examples/fizzbuzz.rs | 4 ++-- juliet/src/lib.rs | 14 +++++++------- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/juliet/README.md b/juliet/README.md index 44b2401fe8..a17aa548a8 100644 --- a/juliet/README.md +++ b/juliet/README.md @@ -1,6 +1,6 @@ -# `juliet` protocol implementation +# Juliet protocol implementation -This crate implements the juliet multiplexing protocol as laid out in the [Juliet RFC](https://github.com/marc-casperlabs/juliet-rfc/blob/master/juliet.md). It aims to be a secure, simple, easy to verify/review implementation that is still reasonably performant. +This crate implements the Juliet multiplexing protocol as laid out in the [Juliet RFC](https://github.com/marc-casperlabs/juliet-rfc/blob/master/juliet.md). It aims to be a secure, simple, easy to verify/review implementation that is still reasonably performant. ## Benefits @@ -14,7 +14,7 @@ This crate implements the juliet multiplexing protocol as laid out in the [Julie This crate's implementation includes benefits such as -* a side-effect free implementation of the Juliet protocol, +* a side-effect-free implementation of the Juliet protocol, * an `async` IO layer integrated with the [`bytes`](https://docs.rs/bytes) crate to use it, and * a type-safe RPC layer built on top. diff --git a/juliet/examples/fizzbuzz.rs b/juliet/examples/fizzbuzz.rs index 1c5e6f326c..a4b8bc6e89 100644 --- a/juliet/examples/fizzbuzz.rs +++ b/juliet/examples/fizzbuzz.rs @@ -12,8 +12,8 @@ //! cargo run --example fizzbuzz --features tracing //! ``` //! -//! You should [Fizz buzz](https://en.wikipedia.org/wiki/Fizz_buzz) solutions being calculated on -//! the server side and sent back. +//! You should see [Fizz buzz](https://en.wikipedia.org/wiki/Fizz_buzz) solutions being calculated +//! on the server side and sent back. use std::{fmt::Write, net::SocketAddr, time::Duration}; diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 8e635acdb7..b554f617b1 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -4,10 +4,10 @@ //! //! ## General usage //! -//! This crate is split into three layers, whose usage depends on an applications specific usecase. -//! At the very core sits the [`protocol`] module, which is a side-effect free implementation of the -//! protocol. The caller is responsible for all IO flowing in and out, but it instructed by the -//! state machine what to do next. +//! This crate is split into three layers, whose usage depends on an application's specific use +//! case. At the very core sits the [`protocol`] module, which is a side-effect-free implementation +//! of the protocol. The caller is responsible for all IO flowing in and out, but it is instructed +//! by the state machine what to do next. //! //! If there is no need to roll custom IO, the [`io`] layer provides a complete `tokio`-based //! solution that operates on [`tokio::io::AsyncRead`] and [`tokio::io::AsyncWrite`]. It handles @@ -192,13 +192,13 @@ impl Default for ChannelConfiguration { } impl ChannelConfiguration { - /// Creates a configuration the given request limit (the default is 1). + /// Creates a configuration with the given request limit (default is 1). pub fn with_request_limit(mut self, request_limit: u16) -> ChannelConfiguration { self.request_limit = request_limit; self } - /// Creates a configuration the given maximum size for request payloads (the default is 0). + /// Creates a configuration with the given maximum size for request payloads (default is 0). pub fn with_max_request_payload_size( mut self, max_request_payload_size: u32, @@ -207,7 +207,7 @@ impl ChannelConfiguration { self } - /// Creates a configuration the given maximum size for response payloads (the default is 0). + /// Creates a configuration with the given maximum size for response payloads (default is 0). pub fn with_max_response_payload_size( mut self, max_response_payload_size: u32, From 190b4f5e760da7249fa815fdc3d6c615a3f26320 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 18 Jul 2023 11:17:07 +0200 Subject: [PATCH 547/735] juliet: Add more documentation for request size limits --- juliet/src/lib.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index b554f617b1..3ccc3d9a68 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -199,6 +199,10 @@ impl ChannelConfiguration { } /// Creates a configuration with the given maximum size for request payloads (default is 0). + /// + /// There is nothing magical about payload sizes, a size of 0 allows for payloads that are no + /// longer than 0 bytes in size. On the protocol level, there is a distinction between a request + /// with a zero-sized payload and no payload. pub fn with_max_request_payload_size( mut self, max_request_payload_size: u32, @@ -208,6 +212,10 @@ impl ChannelConfiguration { } /// Creates a configuration with the given maximum size for response payloads (default is 0). + /// + /// There is nothing magical about payload sizes, a size of 0 allows for payloads that are no + /// longer than 0 bytes in size. On the protocol level, there is a distinction between a request + /// with a zero-sized payload and no payload. pub fn with_max_response_payload_size( mut self, max_response_payload_size: u32, From b259a2085eeb5cec1d761b05828233c2a8923270 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 18 Jul 2023 11:20:53 +0200 Subject: [PATCH 548/735] juliet: Add additional warnings and favicons to docs --- juliet/src/lib.rs | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 3ccc3d9a68..4c8b78b950 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -1,3 +1,10 @@ +#![doc(html_root_url = "https://docs.rs/juliet/0.1.0")] +#![doc( + html_favicon_url = "https://raw.githubusercontent.com/casper-network/casper-node/master/images/CasperLabs_Logo_Favicon_RGB_50px.png", + html_logo_url = "https://raw.githubusercontent.com/casper-network/casper-node/master/images/CasperLabs_Logo_Symbol_RGB.png", + test(attr(deny(warnings))) +)] +#![warn(missing_docs, trivial_casts, trivial_numeric_casts)] #![doc = include_str!("../README.md")] //! From 59520bfb139952a4c03e6f9af669e92f5921bddc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 18 Jul 2023 11:55:28 +0200 Subject: [PATCH 549/735] juliet: Add documentation for missing `RemoteReportedError` --- juliet/src/io.rs | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index fe17709de9..6699452cda 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -131,7 +131,13 @@ pub enum CoreError { header.error_kind(), data.as_ref().map(|b| b.len()).unwrap_or(0)) ] - RemoteReportedError { header: Header, data: Option }, + RemoteReportedError { + /// Header of the reported error. + header: Header, + /// The error payload, if the error kind was + /// [`ErrorKind::Other`](crate::header::ErrorKind::Other). + data: Option, + }, /// The remote peer violated the protocol and has been sent an error. #[error("error sent to peer")] RemoteProtocolViolation(OutgoingFrame), From 4dd645396ff72605bf467641ac0dc5998d5fd5e5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 18 Jul 2023 12:08:23 +0200 Subject: [PATCH 550/735] juliet: Increase test coverage of `varint.rs` to 100% --- juliet/src/varint.rs | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 145f23e11d..198e890686 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -83,6 +83,7 @@ impl Varint32 { pub const MAX_LEN: usize = 5; /// Encodes a 32-bit integer to variable length. + #[inline] pub const fn encode(mut value: u32) -> Self { let mut output = [0u8; 6]; let mut count = 0; @@ -101,14 +102,14 @@ impl Varint32 { } /// Returns the number of bytes in the encoded varint. - #[inline(always)] + #[inline] #[allow(clippy::len_without_is_empty)] pub const fn len(self) -> usize { self.0[5] as usize } /// Returns whether or not the given value is the sentinel value. - #[inline(always)] + #[inline] pub const fn is_sentinel(self) -> bool { self.len() == 0 } @@ -207,6 +208,8 @@ mod tests { assert_eq!(encoded.len(), encoded.as_ref().len()); assert!(!encoded.is_sentinel()); check_decode(value, encoded.as_ref()); + + assert_eq!(encoded.decode(), value); } #[test] @@ -249,4 +252,15 @@ mod tests { assert_eq!(Varint32::SENTINEL.len(), 0); assert!(Varint32::SENTINEL.is_sentinel()); } + + #[test] + fn working_sentinel_formatting_and_decoding() { + assert_eq!(format!("{:?}", Varint32::SENTINEL), "Varint32::SENTINEL"); + assert_eq!(Varint32::SENTINEL.decode(), 0); + } + + #[proptest] + fn working_debug_impl(value: u32) { + format!("{:?}", Varint32::encode(value)); + } } From b2c6855b30aa3c118796e0619aece1e9cf30dd2b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 13:12:18 +0200 Subject: [PATCH 551/735] juliet: Typo fixed in `README.md` --- juliet/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/README.md b/juliet/README.md index a17aa548a8..342b213550 100644 --- a/juliet/README.md +++ b/juliet/README.md @@ -20,4 +20,4 @@ This crate's implementation includes benefits such as ## Examples -For a quick usage example, see `examples/fizzbuzz.rz`. +For a quick usage example, see `examples/fizzbuzz.rs`. From 86b06e0d76c767a8b63d7ec8b14ddabe1232a67a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 13:13:32 +0200 Subject: [PATCH 552/735] juliet: Move `resolver = "2"` setting to workspace --- Cargo.toml | 2 ++ juliet/Cargo.toml | 3 --- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index 75fd7e8cae..27f2937c86 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -15,6 +15,8 @@ members = [ "utils/global-state-update-gen", "utils/validation", ] +# Ensures we do not pull in all the features of dev dependencies when building. +resolver = "2" default-members = [ "ci/casper_updater", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 29b023320a..257ee95485 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -3,9 +3,6 @@ name = "juliet" version = "0.1.0" edition = "2021" authors = [ "Marc Brinkmann " ] -# Ensures we do not pull in all the features of dev dependencies when building. -# Note: Would have to be moved to workspace root. -# resolver = "2" exclude = [ "proptest-regressions" ] [dependencies] From deaf0c63a4b1348a38bc0da03d4567b890c5073a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 14:01:16 +0200 Subject: [PATCH 553/735] juliet: Remove debug assertions which were wrong --- juliet/src/protocol/outgoing_message.rs | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 7ff05f1913..e3d42001b3 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -155,13 +155,12 @@ impl FrameIter { if let Some(ref payload) = self.msg.payload { let mut payload_remaining = payload.len() - self.bytes_processed; - debug_assert!(payload_remaining > 0); - let length_prefix = if self.bytes_processed == 0 { Varint32::encode(payload_remaining as u32) } else { Varint32::SENTINEL }; + let preamble = if self.bytes_processed == 0 { Preamble::new(self.msg.header, length_prefix) } else { @@ -238,17 +237,6 @@ impl OutgoingFrame { /// payload exceeds `u32::MAX` in size. #[inline(always)] fn new_with_payload(preamble: Preamble, payload: Bytes) -> Self { - debug_assert!( - !preamble.payload_length.is_sentinel() || payload.is_empty(), - "frames without a payload must not contain a preamble with a payload length" - ); - - debug_assert!( - preamble.payload_length.is_sentinel() - || preamble.payload_length.decode() as usize == payload.len(), - "frames with a payload must have a matching decoded payload length" - ); - debug_assert!( payload.len() <= u32::MAX as usize, "payload exceeds maximum allowed payload" From 78a862cf620b33b246bc7ecd0aef6c5c06635042 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 14:05:58 +0200 Subject: [PATCH 554/735] juliet: Make `Varint32::decode` available outside debug builds to allow for `--release` tests --- juliet/src/varint.rs | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 198e890686..71c1abba28 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -116,9 +116,15 @@ impl Varint32 { /// Decodes the contained `Varint32`. /// - /// Should only be used in debug assertions. The sentinel values is decoded as 0. - #[cfg(debug_assertions)] + /// Should only be used in debug assertions, as `Varint32`s not meant to encoded/decoded cheaply + /// throughout their lifecycle. The sentinel value is decoded as 0. pub(crate) fn decode(self) -> u32 { + // Note: It is not possible to decorate this function with `#[cfg(debug_assertions)]`, since + // `debug_assert!` will not remove the assertion from the code, but put it behind an + // `if false { .. }` instead. Furthermore we also don't panic at runtime, as adding + // a panic that only occurs in `--release` builds is arguably worse than this function + // being called. + if self.is_sentinel() { return 0; } From aa2f3227c640e98d4a662db55bde27633aeab9ee Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 14:11:39 +0200 Subject: [PATCH 555/735] juliet: Complete tests for message fragmentation --- juliet/src/protocol/outgoing_message.rs | 128 ++++++++++++++++++++++++ 1 file changed, 128 insertions(+) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index e3d42001b3..d13f415533 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -268,3 +268,131 @@ impl Buf for OutgoingFrame { self.0.advance(cnt) } } + +#[cfg(test)] +mod tests { + use bytes::{Buf, Bytes}; + + use crate::{ + header::{Header, Kind}, + ChannelId, Id, + }; + + use super::{FrameIter, OutgoingMessage}; + + /// Maximum frame size used across tests. + const MAX_FRAME_SIZE: u32 = 16; + + /// A reusable sample payload. + const PAYLOAD: &[u8] = &[ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, + 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, + 94, 95, 96, 97, 98, 99, + ]; + + /// Collects all frames from a single frame iter. + fn collect_frames(mut iter: FrameIter) -> Vec> { + let mut frames = Vec::new(); + loop { + let (mut frame, more) = iter.next_owned(MAX_FRAME_SIZE); + let expanded = frame.copy_to_bytes(frame.remaining()); + frames.push(expanded.into()); + if let Some(more) = more { + iter = more; + } else { + break frames; + } + } + } + + /// Constructs a message with the given length, turns it into frames and compares if the + /// resulting frames are equal to the expected frame sequence. + #[track_caller] + fn check_payload(length: Option, expected: &[&[u8]]) { + let payload = length.map(|l| Bytes::from(&PAYLOAD[..l])); + + let msg = OutgoingMessage::new( + Header::new(Kind::RequestPl, ChannelId(0xAB), Id(0xEFCD)), + payload, + ); + + // A zero-byte payload is still expected to produce a single byte for the 0-length. + let frames = collect_frames(msg.frames()); + + // We could compare without creating a new vec, but this gives nicer error messages. + let comparable: Vec<_> = frames.iter().map(|v| v.as_slice()).collect(); + assert_eq!(&comparable, expected); + } + + #[test] + fn message_is_fragmentized_correctly() { + check_payload(None, &[&[0x02, 0xAB, 0xCD, 0xEF]]); + check_payload(Some(0), &[&[0x02, 0xAB, 0xCD, 0xEF, 0]]); + check_payload(Some(1), &[&[0x02, 0xAB, 0xCD, 0xEF, 1, 0]]); + check_payload(Some(5), &[&[0x02, 0xAB, 0xCD, 0xEF, 5, 0, 1, 2, 3, 4]]); + check_payload( + Some(11), + &[&[0x02, 0xAB, 0xCD, 0xEF, 11, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]], + ); + check_payload( + Some(12), + &[ + &[0x02, 0xAB, 0xCD, 0xEF, 12, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + &[0x02, 0xAB, 0xCD, 0xEF, 11], + ], + ); + check_payload( + Some(13), + &[ + &[0x02, 0xAB, 0xCD, 0xEF, 13, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + &[0x02, 0xAB, 0xCD, 0xEF, 11, 12], + ], + ); + check_payload( + Some(23), + &[ + &[0x02, 0xAB, 0xCD, 0xEF, 23, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + &[ + 0x02, 0xAB, 0xCD, 0xEF, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, + ], + ], + ); + check_payload( + Some(24), + &[ + &[0x02, 0xAB, 0xCD, 0xEF, 24, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + &[ + 0x02, 0xAB, 0xCD, 0xEF, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, + ], + &[0x02, 0xAB, 0xCD, 0xEF, 23], + ], + ); + check_payload( + Some(35), + &[ + &[0x02, 0xAB, 0xCD, 0xEF, 35, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + &[ + 0x02, 0xAB, 0xCD, 0xEF, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, + ], + &[ + 0x02, 0xAB, 0xCD, 0xEF, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, + ], + ], + ); + check_payload( + Some(36), + &[ + &[0x02, 0xAB, 0xCD, 0xEF, 36, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + &[ + 0x02, 0xAB, 0xCD, 0xEF, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, + ], + &[ + 0x02, 0xAB, 0xCD, 0xEF, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, + ], + &[0x02, 0xAB, 0xCD, 0xEF, 35], + ], + ); + } +} From 0b642dee2d46b08ac20d91d5ce9a9ccd1205b6ea Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 16:35:50 +0200 Subject: [PATCH 556/735] juliet: Use automatic engine for coverage --- juliet/coverage.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/coverage.sh b/juliet/coverage.sh index 5075100cdf..e1e4b5a1a1 100755 --- a/juliet/coverage.sh +++ b/juliet/coverage.sh @@ -9,6 +9,6 @@ set -e # Try to make sure there is reasonable coverage on fuzzed tests. export PROPTEST_CASES=10000 -cargo tarpaulin --engine Llvm -r . --exclude-files '../**' --exclude-files 'examples' --out lcov +cargo tarpaulin -r . --exclude-files '../**' --exclude-files 'examples' --out lcov mkdir -p coverage genhtml -o coverage lcov.info From f7b886e3d979aab1f8983ea768e288773282af64 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 16:37:11 +0200 Subject: [PATCH 557/735] juliet: Finish test coverage for `outgoing_message` module --- juliet/src/protocol/outgoing_message.rs | 45 +++++++++++++++++++++---- juliet/src/util.rs | 4 +-- 2 files changed, 41 insertions(+), 8 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index d13f415533..6b7361bb0f 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -5,7 +5,7 @@ //! [`OutgoingMessage`]. use std::{ - fmt::{self, Debug, Display, Formatter}, + fmt::{self, Debug, Display, Formatter, Write}, io::Cursor, }; @@ -207,6 +207,7 @@ impl Display for OutgoingFrame { let payload = self.0.last_ref(); if !payload.as_ref().is_empty() { + f.write_char(' ')?; Display::fmt(&crate::util::PayloadFormat(self.0.last_ref()), f)?; } @@ -275,10 +276,11 @@ mod tests { use crate::{ header::{Header, Kind}, + varint::Varint32, ChannelId, Id, }; - use super::{FrameIter, OutgoingMessage}; + use super::{FrameIter, OutgoingMessage, Preamble}; /// Maximum frame size used across tests. const MAX_FRAME_SIZE: u32 = 16; @@ -311,12 +313,18 @@ mod tests { /// resulting frames are equal to the expected frame sequence. #[track_caller] fn check_payload(length: Option, expected: &[&[u8]]) { + assert!( + !expected.is_empty(), + "impossible to have message with no frames" + ); + let payload = length.map(|l| Bytes::from(&PAYLOAD[..l])); - let msg = OutgoingMessage::new( - Header::new(Kind::RequestPl, ChannelId(0xAB), Id(0xEFCD)), - payload, - ); + let header = Header::new(Kind::RequestPl, ChannelId(0xAB), Id(0xEFCD)); + let msg = OutgoingMessage::new(header, payload); + + assert_eq!(msg.header(), header); + assert_eq!(expected.len() > 1, msg.is_multi_frame(MAX_FRAME_SIZE)); // A zero-byte payload is still expected to produce a single byte for the 0-length. let frames = collect_frames(msg.frames()); @@ -395,4 +403,29 @@ mod tests { ], ); } + + #[test] + fn display_works() { + let header = Header::new(Kind::RequestPl, ChannelId(1), Id(2)); + let preamble = Preamble::new(header, Varint32::encode(678)); + + assert_eq!(preamble.to_string(), "[RequestPl chan: 1 id: 2] [l=678]"); + + let preamble_no_payload = Preamble::new(header, Varint32::SENTINEL); + + assert_eq!(preamble_no_payload.to_string(), "[RequestPl chan: 1 id: 2]"); + + let msg = OutgoingMessage::new(header, Some(Bytes::from(&b"asdf"[..]))); + let (frame, _) = msg.frames().next_owned(4096); + + assert_eq!( + frame.to_string(), + "<[RequestPl chan: 1 id: 2] [l=4] 61 73 64 66 (4 bytes)>" + ); + + let msg_no_payload = OutgoingMessage::new(header, None); + let (frame, _) = msg_no_payload.frames().next_owned(4096); + + assert_eq!(frame.to_string(), "<[RequestPl chan: 1 id: 2]>"); + } } diff --git a/juliet/src/util.rs b/juliet/src/util.rs index 98909d3f93..8c652cae5f 100644 --- a/juliet/src/util.rs +++ b/juliet/src/util.rs @@ -50,10 +50,10 @@ impl<'a> Display for PayloadFormat<'a> { } if raw.len() > 16 { - f.write_str("...")?; + f.write_str("... ")?; } - write!(f, " ({} bytes)", raw.len())?; + write!(f, "({} bytes)", raw.len())?; Ok(()) } From a3f8215539511c6b7e64ede25ff4fad9e2e8fc65 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 17:00:49 +0200 Subject: [PATCH 558/735] juliet: Add to default workspace --- Cargo.toml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Cargo.toml b/Cargo.toml index 27f2937c86..f539705a61 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -5,8 +5,8 @@ members = [ "execution_engine_testing/test_support", "execution_engine_testing/tests", "hashing", - "juliet", "json_rpc", + "juliet", "muxink", "node", "smart_contracts/contract", @@ -25,6 +25,7 @@ default-members = [ "execution_engine_testing/tests", "hashing", "json_rpc", + "juliet", "node", "types", "utils/global-state-update-gen", From 996164c47d4d3cb3a5a6d3d9f40b4c2c2f9a4720 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 19 Jul 2023 17:42:44 +0200 Subject: [PATCH 559/735] juliet: Add convenient method (for testing) for flattening messages --- juliet/src/protocol/outgoing_message.rs | 42 ++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 4 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 6b7361bb0f..c816c55cb7 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -10,7 +10,7 @@ use std::{ }; use bytemuck::{Pod, Zeroable}; -use bytes::{buf::Chain, Buf, Bytes}; +use bytes::{buf::Chain, Buf, BufMut, Bytes}; use crate::{header::Header, varint::Varint32}; @@ -25,7 +25,7 @@ use super::payload_is_multi_frame; /// interspersed with other messages at will. In general, the [`OutgoingMessage::frames()`] iterator /// should be used, even for single-frame messages. #[must_use] -#[derive(Debug)] +#[derive(Clone, Debug)] pub struct OutgoingMessage { /// The common header for all outgoing messages. header: Header, @@ -190,6 +190,27 @@ impl FrameIter { ) } } + + /// Writes out all frames as they should be sent out onto the wire into the given buffer. + /// + /// This does not leave any way to intersperse other frames and is only recommend in context + /// like testing. + #[cfg(test)] + #[inline] + pub fn put_into(self, buffer: &mut T, max_frame_size: u32) { + let mut current = self; + loop { + let (frame, mut more) = current.next_owned(max_frame_size); + + buffer.put(frame); + + current = if let Some(more) = more.take() { + more + } else { + return; + } + } + } } /// A single frame to be sent. @@ -272,7 +293,9 @@ impl Buf for OutgoingFrame { #[cfg(test)] mod tests { - use bytes::{Buf, Bytes}; + use std::ops::Deref; + + use bytes::{Buf, Bytes, BytesMut}; use crate::{ header::{Header, Kind}, @@ -327,11 +350,22 @@ mod tests { assert_eq!(expected.len() > 1, msg.is_multi_frame(MAX_FRAME_SIZE)); // A zero-byte payload is still expected to produce a single byte for the 0-length. - let frames = collect_frames(msg.frames()); + let frames = collect_frames(msg.clone().frames()); // We could compare without creating a new vec, but this gives nicer error messages. let comparable: Vec<_> = frames.iter().map(|v| v.as_slice()).collect(); assert_eq!(&comparable, expected); + + // Ensure that the written out version is the same as expected. + let mut written_out = BytesMut::new(); + msg.frames().put_into(&mut written_out, MAX_FRAME_SIZE); + let expected_bytestring: Vec = expected + .into_iter() + .map(Deref::deref) + .flatten() + .copied() + .collect(); + assert_eq!(written_out, expected_bytestring); } #[test] From 28f6d8312d945b9d064f48895e92a5203198f223 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Jul 2023 13:56:45 +0200 Subject: [PATCH 560/735] juliet: Add `Varint32::length_of` --- juliet/src/varint.rs | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 71c1abba28..07e7eeb9ea 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -133,6 +133,28 @@ impl Varint32 { .expect("did not expect self-encoded varint32 to fail decoding") .value } + + /// Returns the length of the given value encoded as a `Varint32`. + #[inline] + pub fn length_of(value: u32) -> usize { + if value < 128 { + return 1; + } + + if value < 16384 { + return 2; + } + + if value < 2097152 { + return 3; + } + + if value < 268435456 { + return 4; + } + + 5 + } } impl AsRef<[u8]> for Varint32 { @@ -269,4 +291,13 @@ mod tests { fn working_debug_impl(value: u32) { format!("{:?}", Varint32::encode(value)); } + + #[test] + #[ignore] + fn varint_length_cutover() { + for n in 0..u32::MAX { + let len = Varint32::encode(n).len(); + assert_eq!(len, Varint32::length_of(n)); + } + } } From cc6e555145f4eed7ee05c1624ce61ac0ec7e9498 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 24 Jul 2023 18:25:42 +0200 Subject: [PATCH 561/735] juliet: Add support for bytewise iteration of an outbound message --- juliet/src/protocol/outgoing_message.rs | 245 ++++++++++++++++++++++-- 1 file changed, 227 insertions(+), 18 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index c816c55cb7..cab07431c8 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -10,7 +10,7 @@ use std::{ }; use bytemuck::{Pod, Zeroable}; -use bytes::{buf::Chain, Buf, BufMut, Bytes}; +use bytes::{buf::Chain, Buf, Bytes}; use crate::{header::Header, varint::Varint32}; @@ -66,6 +66,63 @@ impl OutgoingMessage { pub fn header(&self) -> Header { self.header } + + /// Calculates the total number of bytes that are not header data that will be transmitted with + /// this message (the payload + its variable length encoded length prefix). + #[inline] + fn non_header_len(&self) -> usize { + match self.payload { + Some(ref pl) => Varint32::length_of(pl.remaining() as u32) + pl.remaining(), + None => 0, + } + } + + /// Calculates the number of frames this message will produce. + #[inline] + fn num_frames(&self, max_frame_size: u32) -> usize { + let usable_size = max_frame_size as usize - Header::SIZE; + + 1.max((self.non_header_len() + usable_size - 1) / usable_size) + } + + /// Calculates the total length in bytes of all frames produced by this message. + #[inline] + fn total_len(&self, max_frame_size: u32) -> usize { + self.num_frames(max_frame_size) * Header::SIZE + self.non_header_len() + } + + /// Creates an byte-iterator over all frames in the message. + /// + /// The returned `ByteIter` will return all frames in sequence using the [`bytes::Buf`] trait, + /// with no regard for frame boundaries, thus it is only suitable to send all frames of the + /// message with no interleaved data. + #[inline] + pub fn iter_bytes(self, max_frame_size: u32) -> ByteIter { + debug_assert!(max_frame_size > 10); + + let length_prefix = self + .payload + .as_ref() + .map(|pl| Varint32::encode(pl.len() as u32)) + .unwrap_or(Varint32::SENTINEL); + ByteIter { + msg: self, + length_prefix, + consumed: 0, + max_frame_size, + } + } + + /// Writes out all frames as they should be sent out on the wire into a [`Bytes`] struct. + /// + /// Consider using the `frames()` or `bytes()` methods instead to avoid additional copies. This + /// message is not zero-copy, but still consumes `self` to avoid a conversion of a potentially + /// unshared payload buffer. + #[inline] + pub fn to_bytes(self, max_frame_size: u32) -> Bytes { + let mut everything = self.iter_bytes(max_frame_size); + everything.copy_to_bytes(everything.remaining()) + } } /// Combination of header and potential frame payload length. @@ -190,26 +247,89 @@ impl FrameIter { ) } } +} - /// Writes out all frames as they should be sent out onto the wire into the given buffer. +/// Byte-wise message iterator. +#[derive(Debug)] +pub struct ByteIter { + /// The outgoing message. + msg: OutgoingMessage, + /// A written-out copy of the length prefixed. /// - /// This does not leave any way to intersperse other frames and is only recommend in context - /// like testing. - #[cfg(test)] + /// Handed out by reference. + length_prefix: Varint32, + /// Number of bytes already written/sent. + // Note: The `ByteIter` uses `usize`s, since its primary use is to allow using the `Buf` + // interface, which can only deal with usize arguments anyway. + consumed: usize, + /// Maximum frame size at construction. + max_frame_size: u32, +} + +impl ByteIter { + /// Returns the total number of bytes to be emitted by this [`ByteIter`]. + #[inline(always)] + fn total(&self) -> usize { + self.msg.total_len(self.max_frame_size) + } +} + +impl Buf for ByteIter { + #[inline(always)] + fn remaining(&self) -> usize { + self.total() - self.consumed + } + #[inline] - pub fn put_into(self, buffer: &mut T, max_frame_size: u32) { - let mut current = self; - loop { - let (frame, mut more) = current.next_owned(max_frame_size); + fn chunk(&self) -> &[u8] { + if self.remaining() == 0 { + return &[]; + } - buffer.put(frame); + // Determine where we are. + let frames_completed = self.consumed / self.max_frame_size as usize; + let frame_progress = self.consumed % self.max_frame_size as usize; + let in_first_frame = frames_completed == 0; - current = if let Some(more) = more.take() { - more - } else { - return; - } + if frame_progress < Header::SIZE { + // Currently sending the header. + return &self.msg.header.as_ref()[frame_progress..]; + } + + debug_assert!(!self.length_prefix.is_sentinel()); + if in_first_frame && frame_progress < (Header::SIZE + self.length_prefix.len()) { + // Currently sending the payload length prefix. + let varint_progress = frame_progress - Header::SIZE; + return &self.length_prefix.as_ref()[varint_progress..]; } + + // Currently sending a payload chunk. + let space_in_frame = self.max_frame_size as usize - Header::SIZE; + let first_preamble = Header::SIZE + self.length_prefix.len(); + let (frame_payload_start, frame_payload_progress, frame_payload_end) = if in_first_frame { + ( + 0, + frame_progress - first_preamble, + self.max_frame_size as usize - first_preamble, + ) + } else { + let start = frames_completed * space_in_frame - self.length_prefix.len(); + (start, frame_progress - Header::SIZE, start + space_in_frame) + }; + + let current_frame_chunk = self + .msg + .payload + .as_ref() + .map(|pl| &pl[frame_payload_start..frame_payload_end.min(pl.remaining())]) + .unwrap_or_default(); + + ¤t_frame_chunk[frame_payload_progress..] + } + + #[inline(always)] + fn advance(&mut self, cnt: usize) { + self.consumed = (self.consumed + cnt).min(self.total()); } } @@ -295,7 +415,7 @@ impl Buf for OutgoingFrame { mod tests { use std::ops::Deref; - use bytes::{Buf, Bytes, BytesMut}; + use bytes::{Buf, Bytes}; use crate::{ header::{Header, Kind}, @@ -348,6 +468,17 @@ mod tests { assert_eq!(msg.header(), header); assert_eq!(expected.len() > 1, msg.is_multi_frame(MAX_FRAME_SIZE)); + assert_eq!(expected.len(), msg.num_frames(MAX_FRAME_SIZE)); + + // Payload data check. + if let Some(length) = length { + assert_eq!( + length + Varint32::length_of(length as u32), + msg.non_header_len() + ); + } else { + assert_eq!(msg.non_header_len(), 0); + } // A zero-byte payload is still expected to produce a single byte for the 0-length. let frames = collect_frames(msg.clone().frames()); @@ -357,15 +488,34 @@ mod tests { assert_eq!(&comparable, expected); // Ensure that the written out version is the same as expected. - let mut written_out = BytesMut::new(); - msg.frames().put_into(&mut written_out, MAX_FRAME_SIZE); let expected_bytestring: Vec = expected .into_iter() .map(Deref::deref) .flatten() .copied() .collect(); + assert_eq!(expected_bytestring.len(), msg.total_len(MAX_FRAME_SIZE)); + let mut bytes_iter = msg.clone().iter_bytes(MAX_FRAME_SIZE); + let written_out = bytes_iter.copy_to_bytes(bytes_iter.remaining()).to_vec(); assert_eq!(written_out, expected_bytestring); + let converted_to_bytes = msg.clone().to_bytes(MAX_FRAME_SIZE); + assert_eq!(converted_to_bytes, expected_bytestring); + + // Finally, we do a trickle-test with various step sizes. + for step_size in 1..=(MAX_FRAME_SIZE as usize * 2) { + let mut buf: Vec = Vec::new(); + + let mut bytes_iter = msg.clone().iter_bytes(MAX_FRAME_SIZE); + + while bytes_iter.remaining() > 0 { + let chunk = bytes_iter.chunk(); + let next_step = chunk.len().min(step_size); + buf.extend(&chunk[..next_step]); + bytes_iter.advance(next_step); + } + + assert_eq!(buf, expected_bytestring); + } } #[test] @@ -438,6 +588,65 @@ mod tests { ); } + #[test] + fn bytes_iterator_smoke_test() { + let payload = &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11][..]; + + // Expected output: + // &[0x02, 0xAB, 0xCD, 0xEF, 12, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], + // &[0x02, 0xAB, 0xCD, 0xEF, 11], + + let msg = OutgoingMessage::new( + Header::new(Kind::RequestPl, ChannelId(0xAB), Id(0xEFCD)), + Some(Bytes::from(payload)), + ); + + let mut byte_iter = msg.iter_bytes(MAX_FRAME_SIZE); + + // First header. + assert_eq!(byte_iter.remaining(), 21); + assert_eq!(byte_iter.chunk(), &[0x02, 0xAB, 0xCD, 0xEF]); + assert_eq!(byte_iter.chunk(), &[0x02, 0xAB, 0xCD, 0xEF]); + byte_iter.advance(2); + assert_eq!(byte_iter.remaining(), 19); + assert_eq!(byte_iter.chunk(), &[0xCD, 0xEF]); + byte_iter.advance(2); + assert_eq!(byte_iter.remaining(), 17); + + // Varint encoding length. + assert_eq!(byte_iter.chunk(), &[12]); + byte_iter.advance(1); + assert_eq!(byte_iter.remaining(), 16); + + // Payload of first frame (MAX_FRAME_SIZE - 5 = 11 bytes). + assert_eq!(byte_iter.chunk(), &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); + byte_iter.advance(1); + assert_eq!(byte_iter.chunk(), &[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); + byte_iter.advance(5); + assert_eq!(byte_iter.chunk(), &[6, 7, 8, 9, 10]); + byte_iter.advance(5); + + // Second frame. + assert_eq!(byte_iter.remaining(), 5); + assert_eq!(byte_iter.chunk(), &[0x02, 0xAB, 0xCD, 0xEF]); + byte_iter.advance(3); + assert_eq!(byte_iter.chunk(), &[0xEF]); + byte_iter.advance(1); + assert_eq!(byte_iter.remaining(), 1); + assert_eq!(byte_iter.chunk(), &[11]); + byte_iter.advance(1); + assert_eq!(byte_iter.remaining(), 0); + assert_eq!(byte_iter.chunk(), &[]); + assert_eq!(byte_iter.chunk(), &[]); + assert_eq!(byte_iter.chunk(), &[]); + assert_eq!(byte_iter.chunk(), &[]); + assert_eq!(byte_iter.chunk(), &[]); + assert_eq!(byte_iter.remaining(), 0); + assert_eq!(byte_iter.remaining(), 0); + assert_eq!(byte_iter.remaining(), 0); + assert_eq!(byte_iter.remaining(), 0); + } + #[test] fn display_works() { let header = Header::new(Kind::RequestPl, ChannelId(1), Id(2)); From 26cfbd94c8fefb37e6809b867d76b1ba7d6fe2ab Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 12:39:45 +0200 Subject: [PATCH 562/735] juliet: Make `Header` methods `const` --- juliet/src/header.rs | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 4483dcf86d..6300e4aadd 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -145,14 +145,14 @@ impl Header { /// Creates a new non-error header. #[inline(always)] - pub fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { + pub const fn new(kind: Kind, channel: ChannelId, id: Id) -> Self { let id = id.get().to_le_bytes(); Header([kind as u8, channel.get(), id[0], id[1]]) } /// Creates a new error header. #[inline(always)] - pub fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { + pub const fn new_error(kind: ErrorKind, channel: ChannelId, id: Id) -> Self { let id = id.get().to_le_bytes(); Header([ kind as u8 | Header::KIND_ERR_BIT, @@ -166,7 +166,7 @@ impl Header { /// /// Returns `None` if the given `raw` bytes are not a valid header. #[inline(always)] - pub fn parse(mut raw: [u8; Header::SIZE]) -> Option { + pub const fn parse(mut raw: [u8; Header::SIZE]) -> Option { // Zero-out reserved bits. raw[0] &= Self::KIND_ERR_MASK | Self::KIND_MASK | Self::KIND_ERR_BIT; @@ -193,32 +193,32 @@ impl Header { /// Returns the raw kind byte. #[inline(always)] - fn kind_byte(self) -> u8 { + const fn kind_byte(self) -> u8 { self.0[0] } /// Returns the channel. #[inline(always)] - pub fn channel(self) -> ChannelId { + pub const fn channel(self) -> ChannelId { ChannelId::new(self.0[1]) } /// Returns the id. #[inline(always)] - pub fn id(self) -> Id { + pub const fn id(self) -> Id { let [_, _, id @ ..] = self.0; Id::new(u16::from_le_bytes(id)) } /// Returns whether the error bit is set. #[inline(always)] - pub fn is_error(self) -> bool { + pub const fn is_error(self) -> bool { self.kind_byte() & Self::KIND_ERR_BIT == Self::KIND_ERR_BIT } /// Returns whether or not the given header is a request header. #[inline] - pub fn is_request(self) -> bool { + pub const fn is_request(self) -> bool { if !self.is_error() { matches!(self.kind(), Kind::Request | Kind::RequestPl) } else { @@ -232,7 +232,7 @@ impl Header { /// /// Will panic if `Self::is_error()` is not `true`. #[inline(always)] - pub fn error_kind(self) -> ErrorKind { + pub const fn error_kind(self) -> ErrorKind { debug_assert!(self.is_error()); match self.kind_byte() & Self::KIND_ERR_MASK { 0 => ErrorKind::Other, @@ -260,7 +260,7 @@ impl Header { /// /// Will panic if `Self::is_error()` is not `false`. #[inline(always)] - pub fn kind(self) -> Kind { + pub const fn kind(self) -> Kind { debug_assert!(!self.is_error()); match self.kind_byte() & Self::KIND_MASK { 0 => Kind::Request, @@ -276,7 +276,7 @@ impl Header { /// Creates a new header with the same id and channel but an error kind. #[inline] - pub(crate) fn with_err(self, kind: ErrorKind) -> Self { + pub(crate) const fn with_err(self, kind: ErrorKind) -> Self { Header::new_error(kind, self.channel(), self.id()) } } From abccffa301f18cefd3e0b7ef9ec9ddefe8b94673 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 12:57:11 +0200 Subject: [PATCH 563/735] juliet: Make `varint` module `const fn` as much as possible --- juliet/src/varint.rs | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 07e7eeb9ea..9324e5535e 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -31,10 +31,13 @@ pub struct ParsedU32 { } /// Decodes a varint32 from the given input. -pub fn decode_varint32(input: &[u8]) -> Outcome { +pub const fn decode_varint32(input: &[u8]) -> Outcome { let mut value = 0u32; - for (idx, &c) in input.iter().enumerate() { + // `for` is not stable in `const fn` yet. + let mut idx = 0; + while idx < input.len() { + let c = input[idx]; if idx >= 4 && c & 0b1111_0000 != 0 { return Fatal(Overflow); } @@ -44,13 +47,15 @@ pub fn decode_varint32(input: &[u8]) -> Outcome { if c & 0b1000_0000 == 0 { return Success(ParsedU32 { value, - offset: NonZeroU8::new((idx + 1) as u8).unwrap(), + offset: unsafe { NonZeroU8::new_unchecked((idx + 1) as u8) }, }); } + + idx += 1; } // We found no stop bit, so our integer is incomplete. - Incomplete(NonZeroU32::new(1).unwrap()) + Incomplete(unsafe { NonZeroU32::new_unchecked(1) }) } /// An encoded varint32. @@ -118,7 +123,7 @@ impl Varint32 { /// /// Should only be used in debug assertions, as `Varint32`s not meant to encoded/decoded cheaply /// throughout their lifecycle. The sentinel value is decoded as 0. - pub(crate) fn decode(self) -> u32 { + pub(crate) const fn decode(self) -> u32 { // Note: It is not possible to decorate this function with `#[cfg(debug_assertions)]`, since // `debug_assert!` will not remove the assertion from the code, but put it behind an // `if false { .. }` instead. Furthermore we also don't panic at runtime, as adding @@ -129,14 +134,15 @@ impl Varint32 { return 0; } - decode_varint32(&self.0[..]) - .expect("did not expect self-encoded varint32 to fail decoding") - .value + match decode_varint32(self.0.as_slice()) { + Incomplete(_) | Fatal(_) => 0, // actually unreachable. + Success(v) => v.value, + } } /// Returns the length of the given value encoded as a `Varint32`. #[inline] - pub fn length_of(value: u32) -> usize { + pub const fn length_of(value: u32) -> usize { if value < 128 { return 1; } From 3ab74393653d77e6509453dc5eb3a55b131452a4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 13:12:16 +0200 Subject: [PATCH 564/735] juliet: Make `outgoing_message` as `const` as possible --- juliet/src/protocol.rs | 2 +- juliet/src/protocol/outgoing_message.rs | 31 ++++++++++++++----------- 2 files changed, 19 insertions(+), 14 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index db6632c6e0..94671ff768 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -845,7 +845,7 @@ fn err_msg(header: Header, kind: ErrorKind) -> Outcome { /// /// Panics in debug mode if the given payload length is larger than `u32::MAX`. #[inline] -pub fn payload_is_multi_frame(max_frame_size: u32, payload_len: usize) -> bool { +pub const fn payload_is_multi_frame(max_frame_size: u32, payload_len: usize) -> bool { debug_assert!( payload_len <= u32::MAX as usize, "payload cannot exceed `u32::MAX`" diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index cab07431c8..9de65832d6 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -38,13 +38,13 @@ impl OutgoingMessage { // Note: Do not make this function available to users of the library, to avoid them constructing // messages by accident that may violate the protocol. #[inline(always)] - pub(super) fn new(header: Header, payload: Option) -> Self { + pub(super) const fn new(header: Header, payload: Option) -> Self { Self { header, payload } } /// Returns whether or not a message will span multiple frames. #[inline(always)] - pub fn is_multi_frame(&self, max_frame_size: u32) -> bool { + pub const fn is_multi_frame(&self, max_frame_size: u32) -> bool { if let Some(ref payload) = self.payload { payload_is_multi_frame(max_frame_size, payload.len()) } else { @@ -54,7 +54,7 @@ impl OutgoingMessage { /// Creates an iterator over all frames in the message. #[inline(always)] - pub fn frames(self) -> FrameIter { + pub const fn frames(self) -> FrameIter { FrameIter { msg: self, bytes_processed: 0, @@ -63,31 +63,36 @@ impl OutgoingMessage { /// Returns the outgoing message's header. #[inline(always)] - pub fn header(&self) -> Header { + pub const fn header(&self) -> Header { self.header } /// Calculates the total number of bytes that are not header data that will be transmitted with /// this message (the payload + its variable length encoded length prefix). #[inline] - fn non_header_len(&self) -> usize { + const fn non_header_len(&self) -> usize { match self.payload { - Some(ref pl) => Varint32::length_of(pl.remaining() as u32) + pl.remaining(), + Some(ref pl) => Varint32::length_of(pl.len() as u32) + pl.len(), None => 0, } } /// Calculates the number of frames this message will produce. #[inline] - fn num_frames(&self, max_frame_size: u32) -> usize { + const fn num_frames(&self, max_frame_size: u32) -> usize { let usable_size = max_frame_size as usize - Header::SIZE; - 1.max((self.non_header_len() + usable_size - 1) / usable_size) + let num_frames = (self.non_header_len() + usable_size - 1) / usable_size; + if num_frames == 0 { + 1 // `Ord::max` is not `const fn`. + } else { + num_frames + } } /// Calculates the total length in bytes of all frames produced by this message. #[inline] - fn total_len(&self, max_frame_size: u32) -> usize { + const fn total_len(&self, max_frame_size: u32) -> usize { self.num_frames(max_frame_size) * Header::SIZE + self.non_header_len() } @@ -158,7 +163,7 @@ impl Preamble { /// /// Passing [`Varint32::SENTINEL`] as the length will cause it to be omitted. #[inline(always)] - fn new(header: Header, payload_length: Varint32) -> Self { + const fn new(header: Header, payload_length: Varint32) -> Self { Self { header, payload_length, @@ -167,12 +172,12 @@ impl Preamble { /// Returns the length of the preamble when encoded as as a bytestring. #[inline(always)] - fn len(self) -> usize { + const fn len(self) -> usize { Header::SIZE + self.payload_length.len() } #[inline(always)] - fn header(self) -> Header { + const fn header(self) -> Header { self.header } } @@ -269,7 +274,7 @@ pub struct ByteIter { impl ByteIter { /// Returns the total number of bytes to be emitted by this [`ByteIter`]. #[inline(always)] - fn total(&self) -> usize { + const fn total(&self) -> usize { self.msg.total_len(self.max_frame_size) } } From 257fdf24048fda887938572f266c002991e5eeb8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 13:24:50 +0200 Subject: [PATCH 565/735] juliet: Make `lib`, `protocol`, `io`, `util` and `rpc` modules as `const` as possible --- juliet/src/io.rs | 4 ++-- juliet/src/lib.rs | 15 ++++++++++----- juliet/src/protocol.rs | 25 +++++++++++++++++-------- juliet/src/rpc.rs | 4 ++-- juliet/src/util.rs | 2 +- 5 files changed, 32 insertions(+), 18 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 6699452cda..9160d1f5ae 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -276,7 +276,7 @@ pub struct IoCoreBuilder { impl IoCoreBuilder { /// Creates a new builder for an [`IoCore`]. #[inline] - pub fn new(protocol: ProtocolBuilder) -> Self { + pub const fn new(protocol: ProtocolBuilder) -> Self { Self { protocol, buffer_size: [1; N], @@ -288,7 +288,7 @@ impl IoCoreBuilder { /// # Panics /// /// Will panic if given an invalid channel or a size less than one. - pub fn buffer_size(mut self, channel: ChannelId, size: usize) -> Self { + pub const fn buffer_size(mut self, channel: ChannelId, size: usize) -> Self { assert!(size > 0, "cannot have a memory buffer size of zero"); self.buffer_size[channel.get() as usize] = size; diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 4c8b78b950..52b86c36f0 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -190,17 +190,22 @@ pub struct ChannelConfiguration { impl Default for ChannelConfiguration { fn default() -> Self { + Self::new() + } +} + +impl ChannelConfiguration { + /// Creates a new [`ChannelConfiguration`] with default values. + pub const fn new() -> Self { Self { request_limit: 1, max_request_payload_size: 0, max_response_payload_size: 0, } } -} -impl ChannelConfiguration { /// Creates a configuration with the given request limit (default is 1). - pub fn with_request_limit(mut self, request_limit: u16) -> ChannelConfiguration { + pub const fn with_request_limit(mut self, request_limit: u16) -> ChannelConfiguration { self.request_limit = request_limit; self } @@ -210,7 +215,7 @@ impl ChannelConfiguration { /// There is nothing magical about payload sizes, a size of 0 allows for payloads that are no /// longer than 0 bytes in size. On the protocol level, there is a distinction between a request /// with a zero-sized payload and no payload. - pub fn with_max_request_payload_size( + pub const fn with_max_request_payload_size( mut self, max_request_payload_size: u32, ) -> ChannelConfiguration { @@ -223,7 +228,7 @@ impl ChannelConfiguration { /// There is nothing magical about payload sizes, a size of 0 allows for payloads that are no /// longer than 0 bytes in size. On the protocol level, there is a distinction between a request /// with a zero-sized payload and no payload. - pub fn with_max_response_payload_size( + pub const fn with_max_response_payload_size( mut self, max_response_payload_size: u32, ) -> ChannelConfiguration { diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 94671ff768..4108229528 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -100,14 +100,19 @@ pub struct ProtocolBuilder { impl Default for ProtocolBuilder { #[inline] fn default() -> Self { - Self::with_default_channel_config(Default::default()) + Self::new() } } impl ProtocolBuilder { + /// Creates a new protocol builder with default configuration for every channel. + pub const fn new() -> Self { + Self::with_default_channel_config(ChannelConfiguration::new()) + } + /// Creates a new protocol builder with all channels preconfigured using the given config. #[inline] - pub fn with_default_channel_config(config: ChannelConfiguration) -> Self { + pub const fn with_default_channel_config(config: ChannelConfiguration) -> Self { Self { channel_config: [config; N], max_frame_size: 4096, @@ -115,7 +120,11 @@ impl ProtocolBuilder { } /// Update the channel configuration for a given channel. - pub fn channel_config(mut self, channel: ChannelId, config: ChannelConfiguration) -> Self { + pub const fn channel_config( + mut self, + channel: ChannelId, + config: ChannelConfiguration, + ) -> Self { self.channel_config[channel.get() as usize] = config; self } @@ -137,7 +146,7 @@ impl ProtocolBuilder { /// /// Will panic if the maximum size is too small to holder a header, payload length and at least /// one byte of payload. - pub fn max_frame_size(mut self, max_frame_size: u32) -> Self { + pub const fn max_frame_size(mut self, max_frame_size: u32) -> Self { assert!(max_frame_size as usize > Header::SIZE + Varint32::MAX_LEN); self.max_frame_size = max_frame_size; @@ -358,7 +367,7 @@ impl JulietProtocol { /// Will panic if `max_frame_size` is too small to hold header and payload length encoded, i.e. /// < 9 bytes. #[inline] - pub fn builder(config: ChannelConfiguration) -> ProtocolBuilder { + pub const fn builder(config: ChannelConfiguration) -> ProtocolBuilder { ProtocolBuilder { channel_config: [config; N], max_frame_size: 1024, @@ -369,7 +378,7 @@ impl JulietProtocol { /// /// Returns a `LocalProtocolViolation` if called with non-existant channel. #[inline(always)] - fn lookup_channel(&self, channel: ChannelId) -> Result<&Channel, LocalProtocolViolation> { + const fn lookup_channel(&self, channel: ChannelId) -> Result<&Channel, LocalProtocolViolation> { if channel.0 as usize >= N { Err(LocalProtocolViolation::InvalidChannel(channel)) } else { @@ -394,7 +403,7 @@ impl JulietProtocol { /// Returns the configured maximum frame size. #[inline(always)] - pub fn max_frame_size(&self) -> u32 { + pub const fn max_frame_size(&self) -> u32 { self.max_frame_size } @@ -833,7 +842,7 @@ impl JulietProtocol { /// Pure convenience function for the common use case of producing a response message from a /// received header with an appropriate error. #[inline(always)] -fn err_msg(header: Header, kind: ErrorKind) -> Outcome { +const fn err_msg(header: Header, kind: ErrorKind) -> Outcome { log_frame!(header); Fatal(OutgoingMessage::new(header.with_err(kind), None)) } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index fb541f4d43..7273df98be 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -304,7 +304,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// By default, there is an infinite timeout. /// /// **TODO**: Currently the timeout feature is not implemented. - pub fn with_timeout(mut self, timeout: Duration) -> Self { + pub const fn with_timeout(mut self, timeout: Duration) -> Self { self.timeout = Some(timeout); self } @@ -527,7 +527,7 @@ pub struct IncomingRequest { impl IncomingRequest { /// Returns a reference to the payload, if any. #[inline(always)] - pub fn payload(&self) -> &Option { + pub const fn payload(&self) -> &Option { &self.payload } diff --git a/juliet/src/util.rs b/juliet/src/util.rs index 8c652cae5f..4ed7af550a 100644 --- a/juliet/src/util.rs +++ b/juliet/src/util.rs @@ -29,7 +29,7 @@ impl<'a> Deref for Index<'a> { impl<'a> Index<'a> { /// Creates a new `Index` with offset value `index`, borrowing `buffer`. - pub(crate) fn new(buffer: &'a BytesMut, index: usize) -> Self { + pub(crate) const fn new(buffer: &'a BytesMut, index: usize) -> Self { let _ = buffer; Index { index, From 35bd348b8cfb43b3a3928a6d13fda5da81b60e73 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 14:06:28 +0200 Subject: [PATCH 566/735] juliet: Add first multi-frame receiver test --- juliet/src/protocol/multiframe.rs | 71 +++++++++++++++++++++++++ juliet/src/protocol/outgoing_message.rs | 36 +++++++++++-- 2 files changed, 103 insertions(+), 4 deletions(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index f36d3c5820..db851a2c22 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -194,3 +194,74 @@ impl MultiframeReceiver { } } } + +#[cfg(test)] +mod tests { + use bytes::{BufMut, Bytes, BytesMut}; + + use crate::{ + header::{ErrorKind, Header, Kind}, + protocol::OutgoingMessage, + ChannelId, Id, + }; + + use super::MultiframeReceiver; + + /// Frame size used for multiframe tests. + const MAXIMUM_FRAME_SIZE: u32 = 16; + + /// Maximum payload size used in testing. + const MAXIMUM_PAYLOAD_SIZE: u32 = 4096; + + const HEADER_1: Header = Header::new(Kind::RequestPl, ChannelId(1), Id(1)); + const HEADER_2: Header = Header::new(Kind::ResponsePl, ChannelId(2), Id(2)); + const HEADER_3: Header = Header::new(Kind::ResponsePl, ChannelId(99), Id(100)); + const HEADER_4: Header = Header::new(Kind::RequestPl, ChannelId(7), Id(42)); + + const LONG_PAYLOAD: &[u8] = &[ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, + ]; + + #[test] + fn single_message_frame_by_frame() { + // We single-feed a message frame-by-frame into the multi-frame receiver: + let mut receiver = MultiframeReceiver::default(); + + let msg = OutgoingMessage::new(HEADER_1, Some(Bytes::from_static(LONG_PAYLOAD))); + + let mut buffer = BytesMut::new(); + let mut frames_left = msg.num_frames(MAXIMUM_FRAME_SIZE); + + for frame in msg.frame_iter(MAXIMUM_FRAME_SIZE) { + assert!(frames_left > 0); + frames_left -= 1; + + buffer.put(frame); + + match receiver.accept( + HEADER_1, + &mut buffer, + MAXIMUM_FRAME_SIZE, + MAXIMUM_PAYLOAD_SIZE, + ErrorKind::RequestLimitExceeded, + ) { + crate::Outcome::Incomplete(n) => { + assert_eq!(n.get(), 4, "expected multi-frame to ask for header next"); + } + crate::Outcome::Fatal(_) => { + panic!("did not expect fatal error on multi-frame parse") + } + crate::Outcome::Success(output) => { + assert_eq!(output.expect("should have payload"), LONG_PAYLOAD); + assert_eq!(frames_left, 0, "should have consumed all frames"); + } + } + assert!( + buffer.is_empty(), + "multi frame receiver should consume entire frame" + ); + } + } +} diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 9de65832d6..9bb3123fb3 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -7,6 +7,7 @@ use std::{ fmt::{self, Debug, Display, Formatter, Write}, io::Cursor, + iter, }; use bytemuck::{Pod, Zeroable}; @@ -61,6 +62,21 @@ impl OutgoingMessage { } } + /// Creates an iterator over all frames in the message with a fixed maximum frame size. + /// + /// A slightly more convenient `frames` method, with a fixed `max_frame_size`. The resulting + /// iterator will use slightly more memory than the equivalent `FrameIter`. + pub fn frame_iter(self, max_frame_size: u32) -> impl Iterator { + let mut frames = Some(self.frames()); + + iter::from_fn(move || { + let iter = frames.take()?; + let (frame, more) = iter.next_owned(max_frame_size); + frames = more; + Some(frame) + }) + } + /// Returns the outgoing message's header. #[inline(always)] pub const fn header(&self) -> Header { @@ -70,7 +86,7 @@ impl OutgoingMessage { /// Calculates the total number of bytes that are not header data that will be transmitted with /// this message (the payload + its variable length encoded length prefix). #[inline] - const fn non_header_len(&self) -> usize { + pub const fn non_header_len(&self) -> usize { match self.payload { Some(ref pl) => Varint32::length_of(pl.len() as u32) + pl.len(), None => 0, @@ -79,7 +95,7 @@ impl OutgoingMessage { /// Calculates the number of frames this message will produce. #[inline] - const fn num_frames(&self, max_frame_size: u32) -> usize { + pub const fn num_frames(&self, max_frame_size: u32) -> usize { let usable_size = max_frame_size as usize - Header::SIZE; let num_frames = (self.non_header_len() + usable_size - 1) / usable_size; @@ -92,7 +108,7 @@ impl OutgoingMessage { /// Calculates the total length in bytes of all frames produced by this message. #[inline] - const fn total_len(&self, max_frame_size: u32) -> usize { + pub const fn total_len(&self, max_frame_size: u32) -> usize { self.num_frames(max_frame_size) * Header::SIZE + self.non_header_len() } @@ -121,7 +137,7 @@ impl OutgoingMessage { /// Writes out all frames as they should be sent out on the wire into a [`Bytes`] struct. /// /// Consider using the `frames()` or `bytes()` methods instead to avoid additional copies. This - /// message is not zero-copy, but still consumes `self` to avoid a conversion of a potentially + /// method is not zero-copy, but still consumes `self` to avoid a conversion of a potentially /// unshared payload buffer. #[inline] pub fn to_bytes(self, max_frame_size: u32) -> Bytes { @@ -397,6 +413,14 @@ impl OutgoingFrame { pub fn header(&self) -> Header { self.0.first_ref().get_ref().header() } + + /// Writes out the frame. + /// + /// Equivalent to `self.copy_to_bytes(self.remaining)`. + #[inline] + pub fn to_bytes(mut self, max_frame_size: u32) -> Bytes { + self.copy_to_bytes(self.remaining()) + } } impl Buf for OutgoingFrame { @@ -488,6 +512,10 @@ mod tests { // A zero-byte payload is still expected to produce a single byte for the 0-length. let frames = collect_frames(msg.clone().frames()); + // Addtional test: Ensure `frame_iter` yields the same result. + let mut from_frame_iter: Vec = Vec::new(); + for frame in msg.clone().frame_iter(MAX_FRAME_SIZE) {} + // We could compare without creating a new vec, but this gives nicer error messages. let comparable: Vec<_> = frames.iter().map(|v| v.as_slice()).collect(); assert_eq!(&comparable, expected); From 25da57f00d557fb96dcddeb2077073dae28c2730 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 15:10:30 +0200 Subject: [PATCH 567/735] juliet: Cleanup and test `OutgoingMessage::to_bytes` --- juliet/src/protocol.rs | 2 +- juliet/src/protocol/outgoing_message.rs | 8 ++++++-- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 4108229528..20f8535cc6 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -842,7 +842,7 @@ impl JulietProtocol { /// Pure convenience function for the common use case of producing a response message from a /// received header with an appropriate error. #[inline(always)] -const fn err_msg(header: Header, kind: ErrorKind) -> Outcome { +fn err_msg(header: Header, kind: ErrorKind) -> Outcome { log_frame!(header); Fatal(OutgoingMessage::new(header.with_err(kind), None)) } diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 9bb3123fb3..e327914125 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -418,7 +418,7 @@ impl OutgoingFrame { /// /// Equivalent to `self.copy_to_bytes(self.remaining)`. #[inline] - pub fn to_bytes(mut self, max_frame_size: u32) -> Bytes { + pub fn to_bytes(mut self) -> Bytes { self.copy_to_bytes(self.remaining()) } } @@ -514,7 +514,9 @@ mod tests { // Addtional test: Ensure `frame_iter` yields the same result. let mut from_frame_iter: Vec = Vec::new(); - for frame in msg.clone().frame_iter(MAX_FRAME_SIZE) {} + for frame in msg.clone().frame_iter(MAX_FRAME_SIZE) { + from_frame_iter.extend(frame.to_bytes()); + } // We could compare without creating a new vec, but this gives nicer error messages. let comparable: Vec<_> = frames.iter().map(|v| v.as_slice()).collect(); @@ -528,6 +530,8 @@ mod tests { .copied() .collect(); assert_eq!(expected_bytestring.len(), msg.total_len(MAX_FRAME_SIZE)); + assert_eq!(from_frame_iter, expected_bytestring); + let mut bytes_iter = msg.clone().iter_bytes(MAX_FRAME_SIZE); let written_out = bytes_iter.copy_to_bytes(bytes_iter.remaining()).to_vec(); assert_eq!(written_out, expected_bytestring); From f44b691237617cd6fefbd2bf72e2cb27fc9ef76a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 16:42:54 +0200 Subject: [PATCH 568/735] juliet: Fix bug in multiframe receiver --- juliet/src/protocol/multiframe.rs | 97 +++++++++++++++---------------- 1 file changed, 48 insertions(+), 49 deletions(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index db851a2c22..4269d1ecb9 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -84,50 +84,46 @@ impl MultiframeReceiver { OutgoingMessage::new(header.with_err(ErrorKind::BadVarInt), None) })); - { - { - if payload_size.value > max_payload_size { - return err_msg(header, payload_exceeded_error_kind); - } - - // We have a valid varint32. - let preamble_size = Header::SIZE as u32 + payload_size.offset.get() as u32; - let max_data_in_frame = max_frame_size - preamble_size; - - // Determine how many additional bytes are needed for frame completion. - let frame_end = Index::new( - buffer, - preamble_size as usize - + (max_data_in_frame as usize).min(payload_size.value as usize), - ); - if buffer.remaining() < *frame_end { - return Outcome::incomplete(*frame_end - buffer.remaining()); - } - - // At this point we are sure to complete a frame, so drop the preamble. - buffer.advance(preamble_size as usize); - - // Is the payload complete in one frame? - if payload_size.value <= max_data_in_frame { - let payload = buffer.split_to(payload_size.value as usize); - - // No need to alter the state, we stay `Ready`. - Success(Some(payload)) - } else { - // Length exceeds the frame boundary, split to maximum and store that. - let partial_payload = buffer.split_to(max_frame_size as usize); - - // We are now in progress of reading a payload. - *self = MultiframeReceiver::InProgress { - header, - payload: partial_payload, - total_payload_size: payload_size.value, - }; - - // We have successfully consumed a frame, but are not finished yet. - Success(None) - } - } + if payload_size.value > max_payload_size { + return err_msg(header, payload_exceeded_error_kind); + } + + // We have a valid varint32. + let preamble_size = Header::SIZE as u32 + payload_size.offset.get() as u32; + let max_data_in_frame = max_frame_size - preamble_size; + + // Determine how many additional bytes are needed for frame completion. + let frame_end = Index::new( + buffer, + preamble_size as usize + + (max_data_in_frame as usize).min(payload_size.value as usize), + ); + if buffer.remaining() < *frame_end { + return Outcome::incomplete(*frame_end - buffer.remaining()); + } + + // At this point we are sure to complete a frame, so drop the preamble. + buffer.advance(preamble_size as usize); + + // Is the payload complete in one frame? + if payload_size.value <= max_data_in_frame { + let payload = buffer.split_to(payload_size.value as usize); + + // No need to alter the state, we stay `Ready`. + Success(Some(payload)) + } else { + // Length exceeds the frame boundary, split to maximum and store that. + let partial_payload = buffer.split_to(max_data_in_frame as usize); + + // We are now in progress of reading a payload. + *self = MultiframeReceiver::InProgress { + header, + payload: partial_payload, + total_payload_size: payload_size.value, + }; + + // We have successfully consumed a frame, but are not finished yet. + Success(None) } } MultiframeReceiver::InProgress { @@ -202,7 +198,7 @@ mod tests { use crate::{ header::{ErrorKind, Header, Kind}, protocol::OutgoingMessage, - ChannelId, Id, + ChannelId, Id, Outcome, }; use super::MultiframeReceiver; @@ -247,15 +243,18 @@ mod tests { MAXIMUM_PAYLOAD_SIZE, ErrorKind::RequestLimitExceeded, ) { - crate::Outcome::Incomplete(n) => { + Outcome::Incomplete(n) => { assert_eq!(n.get(), 4, "expected multi-frame to ask for header next"); } - crate::Outcome::Fatal(_) => { + Outcome::Fatal(_) => { panic!("did not expect fatal error on multi-frame parse") } - crate::Outcome::Success(output) => { - assert_eq!(output.expect("should have payload"), LONG_PAYLOAD); + Outcome::Success(Some(output)) => { assert_eq!(frames_left, 0, "should have consumed all frames"); + assert_eq!(output, LONG_PAYLOAD); + } + Outcome::Success(None) => { + // all good, we will read another frame } } assert!( From 5616a47cc13de09f59212c6a331514580b54a8f6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 25 Jul 2023 17:31:33 +0200 Subject: [PATCH 569/735] juliet: Add model-based sequence generation in multi-frame receiver tests --- juliet/src/protocol/multiframe.rs | 239 +++++++++++++++++++++++- juliet/src/protocol/outgoing_message.rs | 7 + 2 files changed, 236 insertions(+), 10 deletions(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 4269d1ecb9..f864d584d7 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -21,6 +21,11 @@ use crate::{ use super::outgoing_message::OutgoingMessage; /// The multi-frame message receival state of a single channel, as specified in the RFC. +/// +/// The receiver is not channel-aware, that is it will treat a new multi-frame message on a channel +/// that is different from the one where a multi-frame transfer is already in progress as an error +/// in the same way it would if they were on the same channel. The caller thus must ensure to create +/// an instance of `MultiframeReceiver` for every active channel. #[derive(Debug, Default)] pub(super) enum MultiframeReceiver { /// The channel is ready to start receiving a new multi-frame message. @@ -194,25 +199,26 @@ impl MultiframeReceiver { #[cfg(test)] mod tests { use bytes::{BufMut, Bytes, BytesMut}; + use proptest::{arbitrary::any, collection, proptest}; + use proptest_derive::Arbitrary; use crate::{ header::{ErrorKind, Header, Kind}, - protocol::OutgoingMessage, + protocol::{FrameIter, OutgoingMessage}, ChannelId, Id, Outcome, }; use super::MultiframeReceiver; /// Frame size used for multiframe tests. - const MAXIMUM_FRAME_SIZE: u32 = 16; + const MAX_FRAME_SIZE: u32 = 16; + + const MAX_SINGLE_FRAME_PAYLOAD_SIZE: u32 = MAX_FRAME_SIZE - Header::SIZE as u32 - 1; /// Maximum payload size used in testing. - const MAXIMUM_PAYLOAD_SIZE: u32 = 4096; + const MAX_PAYLOAD_SIZE: u32 = 4096; const HEADER_1: Header = Header::new(Kind::RequestPl, ChannelId(1), Id(1)); - const HEADER_2: Header = Header::new(Kind::ResponsePl, ChannelId(2), Id(2)); - const HEADER_3: Header = Header::new(Kind::ResponsePl, ChannelId(99), Id(100)); - const HEADER_4: Header = Header::new(Kind::RequestPl, ChannelId(7), Id(42)); const LONG_PAYLOAD: &[u8] = &[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, @@ -228,9 +234,9 @@ mod tests { let msg = OutgoingMessage::new(HEADER_1, Some(Bytes::from_static(LONG_PAYLOAD))); let mut buffer = BytesMut::new(); - let mut frames_left = msg.num_frames(MAXIMUM_FRAME_SIZE); + let mut frames_left = msg.num_frames(MAX_FRAME_SIZE); - for frame in msg.frame_iter(MAXIMUM_FRAME_SIZE) { + for frame in msg.frame_iter(MAX_FRAME_SIZE) { assert!(frames_left > 0); frames_left -= 1; @@ -239,8 +245,8 @@ mod tests { match receiver.accept( HEADER_1, &mut buffer, - MAXIMUM_FRAME_SIZE, - MAXIMUM_PAYLOAD_SIZE, + MAX_FRAME_SIZE, + MAX_PAYLOAD_SIZE, ErrorKind::RequestLimitExceeded, ) { Outcome::Incomplete(n) => { @@ -263,4 +269,217 @@ mod tests { ); } } + + /// A testing model action . + #[derive(Arbitrary, Debug)] + enum Action { + /// Sends a single frame not subject to multi-frame (due to its payload fitting the size). + #[proptest(weight = 30)] + SendSingleFrame { + /// Header for the single frame. + /// + /// Subject to checking for conflicts with ongoing multi-frame messages. + header: Header, + /// The payload to include. + #[proptest( + strategy = "collection::vec(any::(), 0..=MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize)" + )] + payload: Vec, + }, + /// Creates a new multi-frame message, does nothing if there is already one in progress. + #[proptest(weight = 5)] + BeginMultiFrameMessage { + /// Header for the new multi-frame message. + header: Header, + /// Payload to include. + #[proptest( + strategy = "collection::vec(any::(), (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize+1)..=MAX_PAYLOAD_SIZE as usize)" + )] + payload: Vec, + }, + /// Continue sending the current multi-frame message; does nothing if no multi-frame send + /// is in progress. + #[proptest(weight = 63)] + Continue, + /// Creates a multi-frame message that conflicts with one already in progress. If there is + /// no transfer in progress, does nothing. + #[proptest(weight = 1)] + SendConflictingMultiFrameMessage { + /// Header for the conflicting multi-frame message. + /// + /// Will be adjusted if NOT conflicting. + header: Header, + /// Size of the payload to include. + #[proptest( + strategy = "collection::vec(any::(), (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize+1)..=MAX_PAYLOAD_SIZE as usize)" + )] + payload: Vec, + }, + /// Sends another frame with data. + /// + /// Will be ignored if hitting the last frame of the payload. + #[proptest(weight = 1)] + ContinueWithoutTooSmallFrame, + /// Exceeds the size limit. + #[proptest(weight = 1)] + ExceedPayloadSizeLimit { + /// The header for the new message. + header: Header, + /// How much to reduce the maximum payload size by. + #[proptest(strategy = "collection::vec(any::(), + (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize + 1) + ..=(2+2*MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize))")] + payload: Vec, + }, + } + + proptest! { + #[test] + fn model_sequence_test_multi_frame_receiver( + actions in collection::vec(any::(), 0..1000) + ) { + let (input, expected) = generate_model_sequence(actions); + } + } + + /// Creates a new header guaranteed to be different from the given header. + fn twiddle_header(header: Header) -> Header { + let new_id = Id::new(header.id().get().wrapping_add(1)); + if header.is_error() { + Header::new_error(header.error_kind(), header.channel(), new_id) + } else { + Header::new(header.kind(), header.channel(), new_id) + } + } + + fn generate_model_sequence( + actions: Vec, + ) -> (BytesMut, Vec, OutgoingMessage>>) { + let mut expected = Vec::new(); + + let mut active_transfer: Option = None; + let mut active_payload = Vec::new(); + let mut input = BytesMut::new(); + + for action in actions { + match action { + Action::SendSingleFrame { + mut header, + payload, + } => { + // Ensure the new message does not clash with an ongoing transfer. + if let Some(ref active_transfer) = active_transfer { + if active_transfer.header() == header { + header = twiddle_header(header); + } + } + + // Sending a standalone frame should yield a message instantly. + let pl = BytesMut::from(payload.as_slice()); + expected.push(Outcome::Success(Some(pl))); + input.put( + OutgoingMessage::new(header, Some(payload.into())) + .iter_bytes(MAX_FRAME_SIZE), + ); + } + Action::BeginMultiFrameMessage { header, payload } => { + if active_transfer.is_some() { + // Do not create conflicts, just ignore. + continue; + } + + // Construct iterator over multi-frame message. + let frames = + OutgoingMessage::new(header, Some(payload.clone().into())).frames(); + active_payload = payload; + + // The first read will be a `None` read. + expected.push(Outcome::Success(None)); + let (frame, more) = frames.next_owned(MAX_FRAME_SIZE); + input.put(frame); + + active_transfer = Some( + more.expect("test generated multi-frame message that only has one frame"), + ); + } + Action::Continue => match active_transfer.take() { + Some(frames) => { + let (frame, more) = frames.next_owned(MAX_FRAME_SIZE); + + if more.is_some() { + // More frames to come. + expected.push(Outcome::Success(None)); + } else { + let pl = BytesMut::from(active_payload.as_slice()); + expected.push(Outcome::Success(Some(pl))); + } + + input.put(frame); + active_transfer = more; + } + None => { + // Nothing to do - there is no transfer to continue. + } + }, + Action::SendConflictingMultiFrameMessage { + mut header, + payload, + } => { + if let Some(ref active_transfer) = active_transfer { + // Ensure we don't accidentally hit the same header. + if active_transfer.header() == header { + header = twiddle_header(header); + } + + // We were asked to produce an error, since the protocol was violated. + let msg = OutgoingMessage::new(header, Some(payload.into())); + let (frame, _) = msg.frames().next_owned(MAX_FRAME_SIZE); + input.put(frame); + expected.push(Outcome::Fatal(OutgoingMessage::new( + header.with_err(ErrorKind::InProgress), + None, + ))); + break; // Stop after error. + } else { + // Nothing to do - we cannot conflict with a transfer if there is none. + } + } + Action::ContinueWithoutTooSmallFrame => { + if let Some(ref active_transfer) = active_transfer { + let header = active_transfer.header(); + + // The only guarantee we have is that there is at least one more byte of + // payload, so we send a zero-sized payload. + let msg = OutgoingMessage::new(header, Some(Bytes::new())); + let (frame, _) = msg.frames().next_owned(MAX_FRAME_SIZE); + input.put(frame); + expected.push(Outcome::Fatal(OutgoingMessage::new( + header.with_err(ErrorKind::SegmentViolation), + None, + ))); + break; // Stop after error. + } else { + // Nothing to do, we cannot send a too-small frame if there is no transfer. + } + } + Action::ExceedPayloadSizeLimit { header, payload } => { + if active_transfer.is_some() { + // Only do this if there is no active transfer. + continue; + } + + let msg = OutgoingMessage::new(header, Some(payload.into())); + let (frame, _) = msg.frames().next_owned(MAX_FRAME_SIZE); + input.put(frame); + expected.push(Outcome::Fatal(OutgoingMessage::new( + header.with_err(ErrorKind::RequestTooLarge), + None, + ))); + break; + } + } + } + + (input, expected) + } } diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index e327914125..c18c423037 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -268,6 +268,12 @@ impl FrameIter { ) } } + + /// Returns the outgoing message's header. + #[inline(always)] + pub const fn header(&self) -> Header { + self.msg.header() + } } /// Byte-wise message iterator. @@ -496,6 +502,7 @@ mod tests { let msg = OutgoingMessage::new(header, payload); assert_eq!(msg.header(), header); + assert_eq!(msg.clone().frames().header(), header); assert_eq!(expected.len() > 1, msg.is_multi_frame(MAX_FRAME_SIZE)); assert_eq!(expected.len(), msg.num_frames(MAX_FRAME_SIZE)); From 4d688ae85b0ee86b7b12d09012b8a044f2804beb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 30 Jul 2023 16:25:04 +0200 Subject: [PATCH 570/735] juliet: Check generated models in multiframe reader tests --- Cargo.lock | 48 +++++++++- juliet/Cargo.toml | 3 + juliet/src/header.rs | 2 +- juliet/src/lib.rs | 2 +- juliet/src/protocol/multiframe.rs | 119 +++++++++++++++++++++--- juliet/src/protocol/outgoing_message.rs | 2 +- 6 files changed, 157 insertions(+), 19 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index cb65760b33..3135f084a8 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -643,7 +643,7 @@ dependencies = [ "casper-json-rpc", "casper-types", "datasize", - "derive_more", + "derive_more 0.99.17", "ed25519-dalek", "either", "enum-iterator", @@ -778,7 +778,7 @@ dependencies = [ "base16", "casper-types", "clap 3.2.23", - "derive_more", + "derive_more 0.99.17", "hex", "serde", "serde_json", @@ -1311,6 +1311,17 @@ dependencies = [ "casper-types", ] +[[package]] +name = "derivative" +version = "2.2.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b" +dependencies = [ + "proc-macro2 1.0.56", + "quote 1.0.26", + "syn 1.0.109", +] + [[package]] name = "derive_more" version = "0.99.17" @@ -1324,6 +1335,27 @@ dependencies = [ "syn 1.0.109", ] +[[package]] +name = "derive_more" +version = "1.0.0-beta.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "d79dfbcc1f34f3b3a0ce7574276f6f198acb811d70dd19d9dcbfe6263a83d983" +dependencies = [ + "derive_more-impl", +] + +[[package]] +name = "derive_more-impl" +version = "1.0.0-beta.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "395aee42a456ecfd4c7034be5011e1a98edcbab2611867c8988a0f40d0bb242a" +dependencies = [ + "proc-macro2 1.0.56", + "quote 1.0.26", + "syn 2.0.15", + "unicode-xid 0.2.4", +] + [[package]] name = "derp" version = "0.0.14" @@ -3161,6 +3193,8 @@ dependencies = [ "bimap", "bytemuck", "bytes", + "derivative", + "derive_more 1.0.0-beta.2", "futures", "portable-atomic", "proptest", @@ -4088,7 +4122,7 @@ version = "0.4.30" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759" dependencies = [ - "unicode-xid", + "unicode-xid 0.1.0", ] [[package]] @@ -5133,7 +5167,7 @@ checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5" dependencies = [ "proc-macro2 0.4.30", "quote 0.6.13", - "unicode-xid", + "unicode-xid 0.1.0", ] [[package]] @@ -5783,6 +5817,12 @@ version = "0.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc" +[[package]] +name = "unicode-xid" +version = "0.2.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c" + [[package]] name = "untrusted" version = "0.7.1" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 257ee95485..b992e4828d 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -24,6 +24,9 @@ proptest-derive = "0.3.0" rand = "0.8.5" tracing = "0.1.37" tracing-subscriber = { version = "0.3.17", features = [ "env-filter" ] } +derivative = "2.2.0" +# TODO: Upgrade `derive_more` to non-beta version, once released. +derive_more = { version = "1.0.0-beta.2", features = [ "debug" ] } [[example]] name = "fizzbuzz" diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 6300e4aadd..7e0f8c8fa1 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -100,7 +100,7 @@ pub enum ErrorKind { } /// Frame kind, from the kind byte. -#[derive(Copy, Clone, Debug)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 52b86c36f0..1db91fb088 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -109,7 +109,7 @@ impl From for u16 { } /// The outcome of a parsing operation on a potentially incomplete buffer. -#[derive(Debug)] +#[derive(Debug, Eq, PartialEq)] #[must_use] pub enum Outcome { /// The given data was incomplete, at least the given amount of additional bytes is needed. diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index f864d584d7..09fead2422 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -213,25 +213,23 @@ mod tests { /// Frame size used for multiframe tests. const MAX_FRAME_SIZE: u32 = 16; + /// Maximum size of a payload of a single frame message. + /// + /// One byte is required to encode the length, which is <= 16. const MAX_SINGLE_FRAME_PAYLOAD_SIZE: u32 = MAX_FRAME_SIZE - Header::SIZE as u32 - 1; /// Maximum payload size used in testing. const MAX_PAYLOAD_SIZE: u32 = 4096; - const HEADER_1: Header = Header::new(Kind::RequestPl, ChannelId(1), Id(1)); - - const LONG_PAYLOAD: &[u8] = &[ - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, - ]; - #[test] fn single_message_frame_by_frame() { // We single-feed a message frame-by-frame into the multi-frame receiver: let mut receiver = MultiframeReceiver::default(); - let msg = OutgoingMessage::new(HEADER_1, Some(Bytes::from_static(LONG_PAYLOAD))); + let payload = gen_payload(64); + let header = Header::new(Kind::RequestPl, ChannelId(1), Id(1)); + + let msg = OutgoingMessage::new(header, Some(Bytes::from(payload.clone()))); let mut buffer = BytesMut::new(); let mut frames_left = msg.num_frames(MAX_FRAME_SIZE); @@ -243,7 +241,7 @@ mod tests { buffer.put(frame); match receiver.accept( - HEADER_1, + header, &mut buffer, MAX_FRAME_SIZE, MAX_PAYLOAD_SIZE, @@ -257,7 +255,7 @@ mod tests { } Outcome::Success(Some(output)) => { assert_eq!(frames_left, 0, "should have consumed all frames"); - assert_eq!(output, LONG_PAYLOAD); + assert_eq!(output, payload); } Outcome::Success(None) => { // all good, we will read another frame @@ -271,7 +269,7 @@ mod tests { } /// A testing model action . - #[derive(Arbitrary, Debug)] + #[derive(Arbitrary, derive_more::Debug)] enum Action { /// Sends a single frame not subject to multi-frame (due to its payload fitting the size). #[proptest(weight = 30)] @@ -284,6 +282,7 @@ mod tests { #[proptest( strategy = "collection::vec(any::(), 0..=MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize)" )] + #[debug("{} bytes", payload.len())] payload: Vec, }, /// Creates a new multi-frame message, does nothing if there is already one in progress. @@ -295,6 +294,7 @@ mod tests { #[proptest( strategy = "collection::vec(any::(), (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize+1)..=MAX_PAYLOAD_SIZE as usize)" )] + #[debug("{} bytes", payload.len())] payload: Vec, }, /// Continue sending the current multi-frame message; does nothing if no multi-frame send @@ -313,6 +313,7 @@ mod tests { #[proptest( strategy = "collection::vec(any::(), (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize+1)..=MAX_PAYLOAD_SIZE as usize)" )] + #[debug("{} bytes", payload.len())] payload: Vec, }, /// Sends another frame with data. @@ -329,6 +330,7 @@ mod tests { #[proptest(strategy = "collection::vec(any::(), (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize + 1) ..=(2+2*MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize))")] + #[debug("{} bytes", payload.len())] payload: Vec, }, } @@ -339,6 +341,7 @@ mod tests { actions in collection::vec(any::(), 0..1000) ) { let (input, expected) = generate_model_sequence(actions); + check_model_sequence(input, expected) } } @@ -352,6 +355,11 @@ mod tests { } } + /// Generates a model sequence and encodes it as input. + /// + /// Returns a [`BytesMut`] buffer filled with a syntactically valid sequence of bytes that + /// decode to multiple frames, along with vector of expected outcomes of the + /// [`MultiframeReceiver::accept`] method. fn generate_model_sequence( actions: Vec, ) -> (BytesMut, Vec, OutgoingMessage>>) { @@ -482,4 +490,91 @@ mod tests { (input, expected) } + + /// Extracts a header from a slice. + /// + /// # Panics + /// + /// Panics if there is no syntactically well-formed header in the first four bytes of `data`. + #[track_caller] + fn expect_header_from_slice(data: &[u8]) -> Header { + let raw_header: [u8; Header::SIZE] = + <[u8; Header::SIZE] as TryFrom<&[u8]>>::try_from(&data[..Header::SIZE]) + .expect("did not expect header to be missing") + .clone(); + Header::parse(raw_header).expect("did not expect header parsing to fail") + } + + /// Process a given input and compare it against predetermined expected outcomes. + fn check_model_sequence( + mut input: BytesMut, + expected: Vec, OutgoingMessage>>, + ) { + let mut receiver = MultiframeReceiver::default(); + + let mut actual = Vec::new(); + while !input.is_empty() { + // We need to perform the work usually done by the IO system and protocol layer before + // we can pass it on to the multi-frame handler. + let header = expect_header_from_slice(&input); + + let outcome = receiver.accept( + header, + &mut input, + MAX_FRAME_SIZE, + MAX_PAYLOAD_SIZE, + ErrorKind::RequestTooLarge, + ); + actual.push(outcome); + + // On error, we exit. + if matches!(actual.last().unwrap(), Outcome::Fatal(_)) { + break; + } + } + + assert_eq!(actual, expected); + assert!(input.is_empty(), "error should be last message"); + } + + /// Generates a payload. + fn gen_payload(size: usize) -> Vec { + let mut payload = Vec::with_capacity(size); + for i in 0..size { + payload.push((i % 256) as u8); + } + payload + } + + #[test] + fn mutltiframe_allows_interspersed_frames() { + let sf_payload = gen_payload(10); + + let actions = vec![ + Action::BeginMultiFrameMessage { + header: Header::new(Kind::Request, ChannelId(0), Id(0)), + payload: gen_payload(1361), + }, + Action::SendSingleFrame { + header: Header::new_error(ErrorKind::Other, ChannelId(1), Id(42188)), + payload: sf_payload.clone(), + }, + ]; + + // Failed sequence was generated by a proptest, check that it matches. + assert_eq!(format!("{:?}", actions), "[BeginMultiFrameMessage { header: [Request chan: 0 id: 0], payload: 1361 bytes }, SendSingleFrame { header: [err:Other chan: 1 id: 42188], payload: 10 bytes }]"); + + let (input, expected) = generate_model_sequence(actions); + + // We expect the single frame message to come through. + assert_eq!( + expected, + vec![ + Outcome::Success(None), + Outcome::Success(Some(sf_payload.as_slice().into())) + ] + ); + + check_model_sequence(input, expected); + } } diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index c18c423037..c5acec1ad5 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -26,7 +26,7 @@ use super::payload_is_multi_frame; /// interspersed with other messages at will. In general, the [`OutgoingMessage::frames()`] iterator /// should be used, even for single-frame messages. #[must_use] -#[derive(Clone, Debug)] +#[derive(Clone, Debug, Eq, PartialEq)] pub struct OutgoingMessage { /// The common header for all outgoing messages. header: Header, From 3583b6d3f00a2c41a8a66c6152c4876251eb3804 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 12:48:06 +0200 Subject: [PATCH 571/735] juliet: Add `proptest-regressions` --- juliet/proptest-regressions/multiframe.txt | 7 +++++++ juliet/proptest-regressions/protocol/multiframe.txt | 7 +++++++ juliet/proptest-regressions/varint.txt | 7 +++++++ 3 files changed, 21 insertions(+) create mode 100644 juliet/proptest-regressions/multiframe.txt create mode 100644 juliet/proptest-regressions/protocol/multiframe.txt create mode 100644 juliet/proptest-regressions/varint.txt diff --git a/juliet/proptest-regressions/multiframe.txt b/juliet/proptest-regressions/multiframe.txt new file mode 100644 index 0000000000..eb23f72509 --- /dev/null +++ b/juliet/proptest-regressions/multiframe.txt @@ -0,0 +1,7 @@ +# Seeds for failure cases proptest has generated in the past. It is +# automatically read and these particular cases re-run before any +# novel cases are generated. +# +# It is recommended to check this file in to source control so that +# everyone who runs the test benefits from these saved cases. +cc 9b7fb8eced05b4d28bbcbcfa173487e6a8b2891b1b3a0f6ebd0210d34fe7e0be # shrinks to payload = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 116, 42, 17, 106, 128, 80, 246, 96, 235, 166, 22, 253, 165, 154, 37, 70, 38, 92, 11, 109, 221, 241, 175, 189, 113, 116, 175, 151, 6, 85, 70, 38, 56, 3, 253, 23, 124, 247, 63, 191, 244, 161, 167, 201, 29, 1, 136, 238, 198, 134, 89, 143, 216, 224, 86, 251, 87, 241, 243, 81, 191, 160, 56, 236, 121, 57, 49, 163, 176, 54, 44, 228, 84, 228, 231, 101, 223, 238, 38, 242, 183, 213, 23, 237, 146, 17, 186, 166, 170, 51, 6, 20, 144, 245, 228, 109, 102, 82, 191, 80, 235, 75, 54, 255, 182, 190, 12, 232, 101, 148, 205, 153, 104, 145, 235, 83, 232, 38, 34, 195, 3, 197, 101, 161, 2, 21, 186, 38, 182, 119, 27, 85, 170, 188, 114, 230, 55, 158, 163, 211, 201, 151, 211, 46, 238, 192, 59, 124, 228, 115, 232, 26, 88, 26, 149, 51, 88, 108, 159, 30, 245, 74, 235, 53, 135, 239, 61, 255, 170, 10, 149, 44, 207, 150, 187, 16, 37, 61, 51, 136, 162, 45, 243, 124, 230, 104, 237, 210, 97, 172, 180, 251, 11, 96, 248, 221, 236, 98, 66, 94, 54, 111, 143, 228, 31, 122, 191, 121, 19, 111, 169, 67, 132, 14, 205, 111, 152, 93, 21, 210, 182, 18, 161, 87, 244, 129, 62, 238, 28, 144, 166, 20, 56, 93, 173, 101, 219, 26, 203, 193, 102, 39, 236, 215, 31, 16, 206, 165, 179, 230, 37, 207, 222, 31, 7, 182, 255, 236, 248, 169, 132, 78, 187, 95, 250, 241, 199, 238, 246, 130, 90, 198, 144, 81, 170, 157, 63, 34, 1, 183, 218, 179, 142, 146, 83, 175, 241, 120, 245, 163, 6, 222, 198, 196, 105, 217, 188, 114, 138, 196, 187, 215, 232, 138, 147, 198, 34, 131, 151, 50, 178, 184, 108, 56, 147, 49, 40, 251, 188, 20, 166, 60, 77, 235, 153, 13, 25, 228, 219, 15, 139, 229, 60, 50, 198, 100, 221, 237, 17, 220, 16, 236, 238, 27, 20, 217, 26, 92, 86, 152], garbage = [19, 209, 226, 16, 122, 243, 10, 110, 138, 205] diff --git a/juliet/proptest-regressions/protocol/multiframe.txt b/juliet/proptest-regressions/protocol/multiframe.txt new file mode 100644 index 0000000000..5a725e106f --- /dev/null +++ b/juliet/proptest-regressions/protocol/multiframe.txt @@ -0,0 +1,7 @@ +# Seeds for failure cases proptest has generated in the past. It is +# automatically read and these particular cases re-run before any +# novel cases are generated. +# +# It is recommended to check this file in to source control so that +# everyone who runs the test benefits from these saved cases. +cc 6e7fd627a8f19cd62a9ddcaa90d051076fcfbbce9735fe0b25f9e68f2272dc7e # shrinks to actions = [SendSingleFrame { header: [Request chan: 0 id: 0], payload: [] }] diff --git a/juliet/proptest-regressions/varint.txt b/juliet/proptest-regressions/varint.txt new file mode 100644 index 0000000000..5d4542e68f --- /dev/null +++ b/juliet/proptest-regressions/varint.txt @@ -0,0 +1,7 @@ +# Seeds for failure cases proptest has generated in the past. It is +# automatically read and these particular cases re-run before any +# novel cases are generated. +# +# It is recommended to check this file in to source control so that +# everyone who runs the test benefits from these saved cases. +cc 87df179402b16f961c3c1062d8f62213848f06da82e2bf34d288903128849f1b # shrinks to value = 0 From 734dc92f3c738dc992a4a11a1ffcedbd9a8eaa13 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 12:58:52 +0200 Subject: [PATCH 572/735] juliet: Remove `coverage.sh`, as we no longer use it due inaccuracies --- juliet/coverage.sh | 14 -------------- 1 file changed, 14 deletions(-) delete mode 100755 juliet/coverage.sh diff --git a/juliet/coverage.sh b/juliet/coverage.sh deleted file mode 100755 index e1e4b5a1a1..0000000000 --- a/juliet/coverage.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/sh -# coverage.sh: Runs a coverage utility -# -# Requires cargo-tarpaulin and lcov to be installed. -# You can install ryanluker.vscode-coverage-gutters in VSCode to visualize missing coverage. - -set -e - -# Try to make sure there is reasonable coverage on fuzzed tests. -export PROPTEST_CASES=10000 - -cargo tarpaulin -r . --exclude-files '../**' --exclude-files 'examples' --out lcov -mkdir -p coverage -genhtml -o coverage lcov.info From 36ae9faf93c19631dad3e4f1293950f8c2be66bd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 13:49:04 +0200 Subject: [PATCH 573/735] juliet: Properly allow interspersed frames during multiframe transfers --- juliet/src/protocol/multiframe.rs | 129 +++++++++++++++++++++--------- 1 file changed, 93 insertions(+), 36 deletions(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 09fead2422..d209279925 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -81,50 +81,30 @@ impl MultiframeReceiver { match self { MultiframeReceiver::Ready => { - // We have a new segment, which has a variable size. - let segment_buf = &buffer[Header::SIZE..]; - - let payload_size = - try_outcome!(decode_varint32(segment_buf).map_err(|_overflow| { - OutgoingMessage::new(header.with_err(ErrorKind::BadVarInt), None) - })); - - if payload_size.value > max_payload_size { - return err_msg(header, payload_exceeded_error_kind); - } - - // We have a valid varint32. - let preamble_size = Header::SIZE as u32 + payload_size.offset.get() as u32; - let max_data_in_frame = max_frame_size - preamble_size; - - // Determine how many additional bytes are needed for frame completion. - let frame_end = Index::new( + // We know there has to be a starting segment. + let frame_data = try_outcome!(detect_starting_segment( + header, buffer, - preamble_size as usize - + (max_data_in_frame as usize).min(payload_size.value as usize), - ); - if buffer.remaining() < *frame_end { - return Outcome::incomplete(*frame_end - buffer.remaining()); - } + max_frame_size, + max_payload_size, + payload_exceeded_error_kind, + )); // At this point we are sure to complete a frame, so drop the preamble. - buffer.advance(preamble_size as usize); + buffer.advance(frame_data.preamble_len); - // Is the payload complete in one frame? - if payload_size.value <= max_data_in_frame { - let payload = buffer.split_to(payload_size.value as usize); + // Consume the segment. + let segment = buffer.split_to(frame_data.segment_len); + if frame_data.is_complete() { // No need to alter the state, we stay `Ready`. - Success(Some(payload)) + Success(Some(segment)) } else { // Length exceeds the frame boundary, split to maximum and store that. - let partial_payload = buffer.split_to(max_data_in_frame as usize); - - // We are now in progress of reading a payload. *self = MultiframeReceiver::InProgress { header, - payload: partial_payload, - total_payload_size: payload_size.value, + payload: segment, + total_payload_size: frame_data.payload_size, }; // We have successfully consumed a frame, but are not finished yet. @@ -137,8 +117,25 @@ impl MultiframeReceiver { total_payload_size, } => { if header != *active_header { - // The newly supplied header does not match the one active. - return err_msg(header, ErrorKind::InProgress); + // The newly supplied header does not match the one active. Let's see if we have + // a valid start frame. + let frame_data = try_outcome!(detect_starting_segment( + header, + buffer, + max_frame_size, + max_payload_size, + payload_exceeded_error_kind, + )); + + if frame_data.is_complete() { + // An interspersed complete frame is fine, consume and return it. + buffer.advance(frame_data.preamble_len); + let segment = buffer.split_to(frame_data.segment_len); + return Success(Some(segment)); + } else { + // Otherwise, `InProgress`, we cannot start a second multiframe transfer. + return err_msg(header, ErrorKind::InProgress); + } } // Determine whether we expect an intermediate or end segment. @@ -196,6 +193,66 @@ impl MultiframeReceiver { } } +/// Information about an initial frame in a given buffer. +#[derive(Copy, Clone, Debug)] +struct InitialFrameData { + /// The length of the preamble. + preamble_len: usize, + /// The length of the segment. + segment_len: usize, + /// The total payload size described in the frame preamble. + payload_size: u32, +} + +impl InitialFrameData { + /// Returns whether or not the initial frame data describes a complete initial frame. + #[inline(always)] + fn is_complete(self) -> bool { + self.segment_len >= self.payload_size as usize + } +} + +/// Detects a complete start frame in the given buffer. +/// +/// Assumes that buffer still contains the frames header. Returns (`preamble_size`, `payload_len`). +#[inline(always)] +fn detect_starting_segment<'a>( + header: Header, + buffer: &'a BytesMut, + max_frame_size: u32, + max_payload_size: u32, + payload_exceeded_error_kind: ErrorKind, +) -> Outcome { + // The `segment_buf` is the frame's data without the header. + let segment_buf = &buffer[Header::SIZE..]; + + // Try to decode a payload size. + let payload_size = try_outcome!(decode_varint32(segment_buf).map_err(|_overflow| { + OutgoingMessage::new(header.with_err(ErrorKind::BadVarInt), None) + })); + + if payload_size.value > max_payload_size { + return err_msg(header, payload_exceeded_error_kind); + } + + // We have a valid varint32. + let preamble_len = Header::SIZE + payload_size.offset.get() as usize; + let max_data_in_frame = max_frame_size - preamble_len as u32; + + // Determine how many additional bytes are needed for frame completion. + let segment_len = (max_data_in_frame as usize).min(payload_size.value as usize); + let frame_end = preamble_len + segment_len; + if buffer.remaining() < frame_end { + return Outcome::incomplete(frame_end - buffer.remaining()); + } + + Success(InitialFrameData { + preamble_len, + segment_len, + payload_size: payload_size.value, + }) +} + #[cfg(test)] mod tests { use bytes::{BufMut, Bytes, BytesMut}; From 76e1d03566da8d427e83d97cf2e3b89fa24bc388 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 14:11:50 +0200 Subject: [PATCH 574/735] juliet: Fix issue with multiframe receiver not properly disallowing concurrent multiframe transfers on the same channel --- juliet/src/protocol/multiframe.rs | 52 ++++++++++++++++++++++++++++--- 1 file changed, 48 insertions(+), 4 deletions(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index d209279925..d69d390323 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -362,10 +362,14 @@ mod tests { /// no transfer in progress, does nothing. #[proptest(weight = 1)] SendConflictingMultiFrameMessage { - /// Header for the conflicting multi-frame message. + /// Channel for the conflicting multi-frame message. /// /// Will be adjusted if NOT conflicting. - header: Header, + channel: ChannelId, + /// Channel for the conflicting multi-frame message. + /// + /// Will be adjusted if NOT conflicting. + id: Id, /// Size of the payload to include. #[proptest( strategy = "collection::vec(any::(), (MAX_SINGLE_FRAME_PAYLOAD_SIZE as usize+1)..=MAX_PAYLOAD_SIZE as usize)" @@ -394,6 +398,7 @@ mod tests { proptest! { #[test] + #[ignore] // TODO: Adjust parameters so that this does not OOM (or fix leakage bug). fn model_sequence_test_multi_frame_receiver( actions in collection::vec(any::(), 0..1000) ) { @@ -487,9 +492,12 @@ mod tests { } }, Action::SendConflictingMultiFrameMessage { - mut header, + channel, + id, payload, } => { + // We need to manually construct a header here, since it must not be an error. + let mut header = Header::new(Kind::Request, channel, id); if let Some(ref active_transfer) = active_transfer { // Ensure we don't accidentally hit the same header. if active_transfer.header() == header { @@ -591,7 +599,9 @@ mod tests { } assert_eq!(actual, expected); - assert!(input.is_empty(), "error should be last message"); + + // Note that `input` may contain residual data here if there was an error, since `accept` + // only consumes the frame if it was valid. } /// Generates a payload. @@ -634,4 +644,38 @@ mod tests { check_model_sequence(input, expected); } + + #[test] + fn mutltiframe_does_not_allow_multiple_multiframe_transfers() { + let actions = vec![ + Action::BeginMultiFrameMessage { + header: Header::new(Kind::Request, ChannelId(0), Id(0)), + payload: gen_payload(12), + }, + Action::SendConflictingMultiFrameMessage { + channel: ChannelId(0), + id: Id(1), + payload: gen_payload(106), + }, + ]; + + // Failed sequence was generated by a proptest, check that it matches. + assert_eq!(format!("{:?}", actions), "[BeginMultiFrameMessage { header: [Request chan: 0 id: 0], payload: 12 bytes }, SendConflictingMultiFrameMessage { channel: ChannelId(0), id: Id(1), payload: 106 bytes }]"); + + let (input, expected) = generate_model_sequence(actions); + + // We expect the single frame message to come through. + assert_eq!( + expected, + vec![ + Outcome::Success(None), + Outcome::Fatal(OutgoingMessage::new( + Header::new_error(ErrorKind::InProgress, ChannelId(0), Id(1)), + None + )) + ] + ); + + check_model_sequence(input, expected); + } } From 3d9c6974c1a34fb88d8e9903d7e63540ac71e6be Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 14:18:50 +0200 Subject: [PATCH 575/735] juliet: Reformat with nightly `rustfmt` --- juliet/src/header.rs | 3 ++- juliet/src/io.rs | 21 ++++++++++++--------- juliet/src/protocol.rs | 3 ++- juliet/src/rpc.rs | 4 ++-- 4 files changed, 18 insertions(+), 13 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 7e0f8c8fa1..7587ee52b3 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -63,7 +63,8 @@ pub enum ErrorKind { /// An invalid header was received. #[error("invalid header")] InvalidHeader = 2, - /// A segment was sent with a frame where none was allowed, or a segment was too small or missing. + /// A segment was sent with a frame where none was allowed, or a segment was too small or + /// missing. #[error("segment violation")] SegmentViolation = 3, /// A `varint32` could not be decoded. diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 9160d1f5ae..fd5ea582cf 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -206,8 +206,8 @@ struct IoShared { /// Tracks how many requests are in the wait queue. /// /// Tickets are freed once the item is in the wait queue, thus the semaphore permit count - /// controls how many requests can be buffered in addition to those already permitted due to the - /// protocol. + /// controls how many requests can be buffered in addition to those already permitted due to + /// the protocol. /// /// The maximum number of available tickets must be >= 1 for the IO layer to function. buffered_requests: [Arc; N], @@ -244,8 +244,9 @@ pub enum IoEvent { }, /// A response has been received. /// - /// For every [`IoId`] there will eventually be exactly either one [`IoEvent::ReceivedResponse`] - /// or [`IoEvent::ReceivedCancellationResponse`], unless the connection is shutdown beforehand. + /// For every [`IoId`] there will eventually be exactly either one + /// [`IoEvent::ReceivedResponse`] or [`IoEvent::ReceivedCancellationResponse`], unless the + /// connection is shutdown beforehand. ReceivedResponse { /// The local request ID for which the response was sent. io_id: IoId, @@ -256,8 +257,9 @@ pub enum IoEvent { /// /// Indicates the peer is not going to answer the request. /// - /// For every [`IoId`] there will eventually be exactly either one [`IoEvent::ReceivedResponse`] - /// or [`IoEvent::ReceivedCancellationResponse`], unless the connection is shutdown beforehand. + /// For every [`IoId`] there will eventually be exactly either one + /// [`IoEvent::ReceivedResponse`] or [`IoEvent::ReceivedCancellationResponse`], unless the + /// connection is shutdown beforehand. ReceivedCancellationResponse { /// The local request ID which will not be answered. io_id: IoId, @@ -754,8 +756,8 @@ pub struct RequestHandle { sender: UnboundedSender, /// The next generation [`IoId`]. /// - /// IoIDs are just generated sequentially until they run out (which at 1 billion at second takes - /// roughly 10^22 years). + /// IoIDs are just generated sequentially until they run out (which at 1 billion at second + /// takes roughly 10^22 years). next_io_id: Arc, } @@ -770,7 +772,8 @@ pub struct RequestHandle { /// ## Usage /// /// To send any sort of message, response, cancellation or error, use one of the `enqueue_*` -/// methods. The [`io`] layer does some, but not complete bookkeeping, if a complete solution is required, use the [`rpc`](crate::rpc) layer instead. +/// methods. The [`io`] layer does some, but not complete bookkeeping, if a complete solution is +/// required, use the [`rpc`](crate::rpc) layer instead. #[derive(Clone, Debug)] #[repr(transparent)] pub struct Handle { diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 20f8535cc6..407e218d83 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -168,7 +168,8 @@ struct Channel { outgoing_requests: HashSet, /// The multiframe receiver state machine. /// - /// Every channel allows for at most one multi-frame message to be in progress at the same time. + /// Every channel allows for at most one multi-frame message to be in progress at the same + /// time. current_multiframe_receive: MultiframeReceiver, /// Number of requests received minus number of cancellations received. /// diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 7273df98be..012fb42864 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -486,8 +486,8 @@ impl RequestGuard { } fn take_inner(self) -> Result, RequestError> { - // TODO: Best to move `Notified` + `OnceCell` into a separate struct for testing and upholding - // these invariants, avoiding the extra clones. + // TODO: Best to move `Notified` + `OnceCell` into a separate struct for testing and + // upholding these invariants, avoiding the extra clones. self.inner .outcome From 7f0e2cf0b39cb01c96d22b66222b96f613016b5b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 14:19:43 +0200 Subject: [PATCH 576/735] Update stable toolchain to `1.71.0` --- rust-toolchain.toml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/rust-toolchain.toml b/rust-toolchain.toml index 588ffd5788..aa464261d8 100644 --- a/rust-toolchain.toml +++ b/rust-toolchain.toml @@ -1,2 +1,2 @@ [toolchain] -channel = "1.67.1" +channel = "1.71.0" From f71f804797875a29a816f3a3185bba62b36c1cd2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 14:25:40 +0200 Subject: [PATCH 577/735] juliet: Fix clippy warnings --- juliet/src/protocol/multiframe.rs | 17 +++++++---------- juliet/src/protocol/outgoing_message.rs | 8 ++------ 2 files changed, 9 insertions(+), 16 deletions(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index d69d390323..2ae48f76a5 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -216,9 +216,9 @@ impl InitialFrameData { /// /// Assumes that buffer still contains the frames header. Returns (`preamble_size`, `payload_len`). #[inline(always)] -fn detect_starting_segment<'a>( +fn detect_starting_segment( header: Header, - buffer: &'a BytesMut, + buffer: &BytesMut, max_frame_size: u32, max_payload_size: u32, payload_exceeded_error_kind: ErrorKind, @@ -472,8 +472,8 @@ mod tests { more.expect("test generated multi-frame message that only has one frame"), ); } - Action::Continue => match active_transfer.take() { - Some(frames) => { + Action::Continue => { + if let Some(frames) = active_transfer.take() { let (frame, more) = frames.next_owned(MAX_FRAME_SIZE); if more.is_some() { @@ -487,10 +487,8 @@ mod tests { input.put(frame); active_transfer = more; } - None => { - // Nothing to do - there is no transfer to continue. - } - }, + // Otherwise nothing to do - there is no transfer to continue. + } Action::SendConflictingMultiFrameMessage { channel, id, @@ -565,8 +563,7 @@ mod tests { fn expect_header_from_slice(data: &[u8]) -> Header { let raw_header: [u8; Header::SIZE] = <[u8; Header::SIZE] as TryFrom<&[u8]>>::try_from(&data[..Header::SIZE]) - .expect("did not expect header to be missing") - .clone(); + .expect("did not expect header to be missing"); Header::parse(raw_header).expect("did not expect header parsing to fail") } diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index c5acec1ad5..879bbe48e3 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -530,12 +530,8 @@ mod tests { assert_eq!(&comparable, expected); // Ensure that the written out version is the same as expected. - let expected_bytestring: Vec = expected - .into_iter() - .map(Deref::deref) - .flatten() - .copied() - .collect(); + let expected_bytestring: Vec = + expected.iter().flat_map(Deref::deref).copied().collect(); assert_eq!(expected_bytestring.len(), msg.total_len(MAX_FRAME_SIZE)); assert_eq!(from_frame_iter, expected_bytestring); From c4cd7c4597fc14ff65da6a7e7c2c15907806ae45 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Mon, 31 Jul 2023 14:41:54 +0200 Subject: [PATCH 578/735] juliet: Apply first set of suggestions from code review by @Fraser999 Only covers spelling mistakes, grammatical errors. Co-authored-by: Fraser Hutchison <190532+Fraser999@users.noreply.github.com> --- juliet/src/header.rs | 14 ++++++------- juliet/src/io.rs | 22 +++++++++---------- juliet/src/protocol.rs | 28 ++++++++++++------------- juliet/src/protocol/multiframe.rs | 4 ++-- juliet/src/protocol/outgoing_message.rs | 6 +++--- juliet/src/rpc.rs | 19 ++++++++--------- 6 files changed, 46 insertions(+), 47 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 7587ee52b3..0031360f63 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -1,7 +1,7 @@ //! `juliet` header parsing and serialization. //! -//! This module is typically only used by the protocol implementation (see [`crate::protocol`]), but -//! may be of interested to those writing low level tooling. +//! This module is typically only used by the protocol implementation (see +//! [`protocol`](crate::protocol)), but may be of interested to those writing low level tooling. use std::fmt::{Debug, Display}; use bytemuck::{Pod, Zeroable}; @@ -76,23 +76,23 @@ pub enum ErrorKind { /// A new request or response was sent without completing the previous one. #[error("multi-frame in progress")] InProgress = 6, - /// The indicated size of the response would be exceeded the configured limit. + /// The indicated size of the response would exceed the configured limit. #[error("response too large")] ResponseTooLarge = 7, - /// The indicated size of the request would be exceeded the configured limit. + /// The indicated size of the request would exceed the configured limit. #[error("request too large")] RequestTooLarge = 8, /// Peer attempted to create two in-flight requests with the same ID on the same channel. #[error("duplicate request")] DuplicateRequest = 9, /// Sent a response for request not in-flight. - #[error("response for ficticious request")] + #[error("response for fictitious request")] FictitiousRequest = 10, /// The dynamic request limit has been exceeded. #[error("request limit exceeded")] RequestLimitExceeded = 11, /// Response cancellation for a request not in-flight. - #[error("cancellation for ficticious request")] + #[error("cancellation for fictitious request")] FictitiousCancel = 12, /// Peer sent a request cancellation exceeding the cancellation allowance. #[error("cancellation limit exceeded")] @@ -259,7 +259,7 @@ impl Header { /// /// # Panics /// - /// Will panic if `Self::is_error()` is not `false`. + /// Will panic if `Self::is_error()` is `true`. #[inline(always)] pub const fn kind(self) -> Kind { debug_assert!(!self.is_error()); diff --git a/juliet/src/io.rs b/juliet/src/io.rs index fd5ea582cf..78377e1a44 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -3,12 +3,12 @@ //! The IO layer combines a lower-level transport like a TCP Stream with the //! [`JulietProtocol`](crate::protocol::JulietProtocol) protocol implementation and some memory //! buffers to provide a working high-level transport for juliet messages. It allows users of this -//! layer to send messages across over multiple channels, without having to worry about frame -//! multiplexing or request limits. +//! layer to send messages over multiple channels, without having to worry about frame multiplexing +//! or request limits. //! //! ## Usage //! -//! Most, if not all functionality is provided by the [`IoCore`] type, which constructed +//! Most, if not all functionality is provided by the [`IoCore`] type, which is constructed //! using an [`IoCoreBuilder`] (see [`IoCoreBuilder::new`]). Similarly to [`JulietProtocol`] the //! `N` denotes the number of predefined channels. //! @@ -146,7 +146,7 @@ pub enum CoreError { LocalProtocolViolation(#[from] LocalProtocolViolation), /// Internal error. /// - /// An error occured that should be impossible, this is indicative of a bug in this library. + /// An error occurred that should be impossible, this is indicative of a bug in this library. #[error("internal consistency error: {0}")] InternalError(&'static str), } @@ -161,11 +161,11 @@ pub struct IoId(u128); /// IO layer for the juliet protocol. /// -/// The central structure for the IO layer built on top the juliet protocol, once instance per +/// The central structure for the IO layer built on top of the juliet protocol, one instance per /// connection. It manages incoming (`R`) and outgoing (`W`) transports, as well as a queue for /// items to be sent. /// -/// Once instantiated, a continuously polling of [`IoCore::next_event`] is expected. +/// Once instantiated, a continuous polling of [`IoCore::next_event`] is expected. pub struct IoCore { /// The actual protocol state. juliet: JulietProtocol, @@ -341,11 +341,11 @@ where R: AsyncRead + Unpin, W: AsyncWrite + Unpin, { - /// Retrieve the next event. + /// Retrieves the next event. /// - /// This is the central loop of the IO layer. It polls all underlying transports and reads/write - /// if data is available, until enough processing has been done to produce an [`IoEvent`]. Thus - /// any application using the IO layer should loop over calling this function. + /// This is the central loop of the IO layer. It polls all underlying transports and + /// reads/writes if data is available, until enough processing has been done to produce an + /// [`IoEvent`]. Thus any application using the IO layer should loop over calling this function. /// /// Polling of this function must continue only until `Err(_)` or `Ok(None)` is returned, /// indicating that the connection should be closed or has been closed. @@ -938,7 +938,7 @@ impl Handle { .map_err(|send_err| EnqueueError::Closed(send_err.0.into_payload())) } - /// Enqueus an error. + /// Enqueues an error. /// /// Enqueuing an error causes the [`IoCore`] to begin shutting down immediately, only making an /// effort to finish sending the error before doing so. diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 407e218d83..f85ee410eb 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -9,15 +9,15 @@ //! An instance of [`JulietProtocol`] must be created using [`JulietProtocol::builder`], the //! resulting builder can be used to fine-tune the configuration of the given protocol. The //! parameter `N` denotes the number of valid channels, which must be set at compile time. See the -//! types documentation for more details. +//! type's documentation for more details. //! //! ## Efficiency //! //! In general, all bulky data used in the protocol is as zero-copy as possible, for example large //! messages going out in multiple frames will still share the one original payload buffer passed in //! at construction. The "exception" to this is the re-assembly of multi-frame messages, which -//! causes fragments to be copied once to form a continguous byte sequence for the payload to avoid -//! memory-exhaustion attacks based on the semtantics of the underlying [`bytes::BytesMut`]. +//! causes fragments to be copied once to form a contiguous byte sequence for the payload to avoid +//! memory-exhaustion attacks based on the semantics of the underlying [`bytes::BytesMut`]. mod multiframe; mod outgoing_message; @@ -38,7 +38,7 @@ use crate::{ Outcome::{self, Fatal, Incomplete, Success}, }; -/// A channel ID to fill in when the channel is actually or not relevant unknown. +/// A channel ID to fill in when the channel is actually unknown or not relevant. /// /// Note that this is not a reserved channel, just a default chosen -- it may clash with an /// actually active channel. @@ -46,7 +46,7 @@ const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); /// An ID to fill in when the ID should not matter. /// -/// Note a reserved id, it may clash with existing ones. +/// Not a reserved id, it may clash with existing ones. const UNKNOWN_ID: Id = Id::new(0); /// A parser/state machine that processes an incoming stream and is able to construct messages to @@ -144,7 +144,7 @@ impl ProtocolBuilder { /// /// # Panics /// - /// Will panic if the maximum size is too small to holder a header, payload length and at least + /// Will panic if the maximum size is too small to hold a header, payload length and at least /// one byte of payload. pub const fn max_frame_size(mut self, max_frame_size: u32) -> Self { assert!(max_frame_size as usize > Header::SIZE + Varint32::MAX_LEN); @@ -170,7 +170,7 @@ struct Channel { /// /// Every channel allows for at most one multi-frame message to be in progress at the same /// time. - current_multiframe_receive: MultiframeReceiver, + current_multiframe_receiver: MultiframeReceiver, /// Number of requests received minus number of cancellations received. /// /// Capped at the request limit. @@ -199,12 +199,12 @@ impl Channel { /// /// Depending on the size of the payload an [`OutgoingMessage`] may span multiple frames. On a /// single channel, only one multi-frame message may be in the process of sending at a time, - /// thus it is not permissable to begin sending frames of a different multi-frame message before + /// thus it is not permissible to begin sending frames of a different multi-frame message before /// the send of a previous one has been completed. /// /// Additional single-frame messages can be interspersed in between at will. /// - /// [`JulietProtocol`] does not track whether or not a multi-channel message is in-flight; it is + /// [`JulietProtocol`] does not track whether or not a multi-frame message is in-flight; it is /// up to the caller to ensure no second multi-frame message commences sending before the first /// one completes. /// @@ -313,7 +313,7 @@ pub enum CompletedRead { pub enum LocalProtocolViolation { /// A request was not sent because doing so would exceed the request limit on channel. /// - /// Wait for addtional requests to be cancelled or answered. Calling + /// Wait for additional requests to be cancelled or answered. Calling /// [`JulietProtocol::allowed_to_send_request()`] beforehand is recommended. #[error("sending would exceed request limit")] WouldExceedRequestLimit, @@ -377,7 +377,7 @@ impl JulietProtocol { /// Looks up a given channel by ID. /// - /// Returns a `LocalProtocolViolation` if called with non-existant channel. + /// Returns a `LocalProtocolViolation` if called with non-existent channel. #[inline(always)] const fn lookup_channel(&self, channel: ChannelId) -> Result<&Channel, LocalProtocolViolation> { if channel.0 as usize >= N { @@ -389,7 +389,7 @@ impl JulietProtocol { /// Looks up a given channel by ID, mutably. /// - /// Returns a `LocalProtocolViolation` if called with non-existant channel. + /// Returns a `LocalProtocolViolation` if called with non-existent channel. #[inline(always)] fn lookup_channel_mut( &mut self, @@ -450,7 +450,7 @@ impl JulietProtocol { return Err(LocalProtocolViolation::WouldExceedRequestLimit); } - // The `unwrap_or_default` below should never be triggered, as long as `u16::MAX` or less + // The `unwrap_or` below should never be triggered, as long as `u16::MAX` or less // requests are currently in flight, which is always the case. let id = chan.generate_request_id().unwrap_or(Id(0)); @@ -721,7 +721,7 @@ impl JulietProtocol { } } Kind::RequestPl => { - // Make a note whether or not we are continueing an existing request. + // Make a note whether or not we are continuing an existing request. let is_new_request = channel.current_multiframe_receive.is_new_transfer(header); let multiframe_outcome: Option = diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 2ae48f76a5..ccfd91fd67 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -1,6 +1,6 @@ //! Multiframe reading support. //! -//! The juliet protocol supports multi-frame messages, which are subject to addtional rules and +//! The juliet protocol supports multi-frame messages, which are subject to additional rules and //! checks. The resulting state machine is encoded in the [`MultiframeReceiver`] type. use std::mem; @@ -49,7 +49,7 @@ impl MultiframeReceiver { /// that includes a payload. If this is the case, the entire receive `buffer` should be passed /// to this function. /// - /// If a message payload matching the given header has been succesfully completed, both header + /// If a message payload matching the given header has been successfully completed, both header /// and payload are consumed from the `buffer`, the payload being returned. If a starting or /// intermediate segment was processed without completing the message, both are still consumed, /// but `None` is returned instead. This method will never consume more than one frame. diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 879bbe48e3..d5532633e8 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -148,7 +148,7 @@ impl OutgoingMessage { /// Combination of header and potential frame payload length. /// -/// A message with a payload always start with an initial frame that has a header and a varint +/// A message with a payload always starts with an initial frame that has a header and a varint /// encoded payload length. This type combines the two, and allows for the payload length to /// effectively be omitted (through [`Varint32::SENTINEL`]). It has a compact, constant size memory /// representation regardless of whether a variably sized integer is present or not. @@ -221,13 +221,13 @@ pub struct FrameIter { impl FrameIter { /// Returns the next frame to send. /// - /// Will return the next frame, and `Some(self)` is there are additional frames to send to + /// Will return the next frame, and `Some(self)` if there are additional frames to send to /// complete the message, `None` otherwise. /// /// # Note /// /// While different [`OutgoingMessage`]s can have their send order mixed or interspersed, a - /// caller MUST NOT send [`OutgoingFrame`]s of a single messagw in any order but the one + /// caller MUST NOT send [`OutgoingFrame`]s of a single message in any order but the one /// produced by this method. In other words, reorder messages, but not frames within a message. pub fn next_owned(mut self, max_frame_size: u32) -> (OutgoingFrame, Option) { if let Some(ref payload) = self.msg.payload { diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 012fb42864..01ac7dd3f5 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -174,7 +174,6 @@ impl JulietRpcClient { /// An error produced by the RPC error. #[derive(Debug, Error)] - pub enum RpcServerError { /// An [`IoCore`] error. #[error(transparent)] @@ -192,7 +191,7 @@ where /// peer. On success, this function should be called again immediately. /// /// On a regular shutdown (`None` returned) or an error ([`RpcServerError`] returned), a caller - /// must stop calling [`next_request`](Self::next_request) and shoudl drop the entire + /// must stop calling [`next_request`](Self::next_request) and should drop the entire /// [`JulietRpcServer`]. /// /// **Important**: Even if the local peer is not intending to handle any requests, this function @@ -385,9 +384,9 @@ pub enum RequestError { /// Local timeout. /// /// The request was cancelled on our end due to a timeout. - #[error("request timed out ")] + #[error("request timed out")] TimedOut, - /// Remove responsed with cancellation. + /// Remote responded with cancellation. /// /// Instead of sending a response, the remote sent a cancellation. #[error("remote cancelled our request")] @@ -397,16 +396,16 @@ pub enum RequestError { /// Request was cancelled on our end. #[error("request cancelled locally")] Cancelled, - /// API misuse + /// API misuse. /// - /// Either the API was misued, or a bug in this crate appeared. + /// Either the API was misused, or a bug in this crate appeared. #[error("API misused or other internal error")] Error(LocalProtocolViolation), } /// Handle to an in-flight outgoing request. /// -/// The existance of a [`RequestGuard`] indicates that a request has been made or is on-going. It +/// The existence of a [`RequestGuard`] indicates that a request has been made or is ongoing. It /// can also be used to attempt to [`cancel`](RequestGuard::cancel) the request, or retrieve its /// values using [`wait_for_response`](RequestGuard::wait_for_response) or /// [`try_wait_for_response`](RequestGuard::try_wait_for_response). @@ -450,8 +449,8 @@ impl RequestGuard { /// Forgets the request was made. /// - /// Similar [`cancel`](Self::cancel), except that it will not cause an actual cancellation, so - /// the peer will likely perform all the work. The response will be discarded. + /// Similar to [`cancel`](Self::cancel), except that it will not cause an actual cancellation, + /// so the peer will likely perform all the work. The response will be discarded. pub fn forget(self) { // Just do nothing. } @@ -531,7 +530,7 @@ impl IncomingRequest { &self.payload } - /// Returns a reference to the payload, if any. + /// Returns a mutable reference to the payload, if any. /// /// Typically used in conjunction with [`Option::take()`]. #[inline(always)] From d910bf3b0c77f9d00f41e4262c34bba16cc75cb5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 14:31:27 +0200 Subject: [PATCH 579/735] juliet: Use constant instead of magic number for `Header::SIZE` --- juliet/src/header.rs | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 0031360f63..bc80e14cb7 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -13,11 +13,9 @@ use crate::{ChannelId, Id}; /// /// Implements [`AsRef`], which will return a byte slice with the correct encoding of the header /// that can be sent directly to a peer. -// Note: `[u8; 4]` below should ideally be `[u8; Self::SIZE]`, but this prevents the `Zeroable` -// derive from working. #[derive(Copy, Clone, Eq, PartialEq, Pod, Zeroable)] #[repr(transparent)] -pub struct Header([u8; 4]); +pub struct Header([u8; Header::SIZE]); impl Debug for Header { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { From 2f05d7fd64bd8b554381dc72c7978a86ef2e062a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 14:42:37 +0200 Subject: [PATCH 580/735] juliet: Apply more suggestions from @Fraser999 --- juliet/src/header.rs | 3 ++- juliet/src/protocol.rs | 11 ++++++----- juliet/src/protocol/outgoing_message.rs | 6 +++--- 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index bc80e14cb7..070af2694a 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -68,7 +68,7 @@ pub enum ErrorKind { /// A `varint32` could not be decoded. #[error("bad varint")] BadVarInt = 4, - /// Invalid channel: A channel number greater or equal the highest channel number was received. + /// Invalid channel: A channel number greater than the highest channel number was received. #[error("invalid channel")] InvalidChannel = 5, /// A new request or response was sent without completing the previous one. @@ -116,6 +116,7 @@ pub enum Kind { CancelReq = 4, /// Cancellation of a response. CancelResp = 5, + // Note: When adding additional kinds, update the `HIGHEST` associated constant. } impl ErrorKind { diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index f85ee410eb..256af8f1bb 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -188,7 +188,7 @@ impl Channel { Channel { incoming_requests: Default::default(), outgoing_requests: Default::default(), - current_multiframe_receive: MultiframeReceiver::default(), + current_multiframe_receiver: MultiframeReceiver::default(), cancellation_allowance: 0, config, prev_request_id: 0, @@ -722,10 +722,11 @@ impl JulietProtocol { } Kind::RequestPl => { // Make a note whether or not we are continuing an existing request. - let is_new_request = channel.current_multiframe_receive.is_new_transfer(header); + let is_new_request = + channel.current_multiframe_receiver.is_new_transfer(header); let multiframe_outcome: Option = - try_outcome!(channel.current_multiframe_receive.accept( + try_outcome!(channel.current_multiframe_receiver.accept( header, buffer, self.max_frame_size, @@ -764,7 +765,7 @@ impl JulietProtocol { } Kind::ResponsePl => { let is_new_response = - channel.current_multiframe_receive.is_new_transfer(header); + channel.current_multiframe_receiver.is_new_transfer(header); // Ensure it is not a bogus response. if is_new_response && !channel.outgoing_requests.contains(&header.id()) { @@ -772,7 +773,7 @@ impl JulietProtocol { } let multiframe_outcome: Option = - try_outcome!(channel.current_multiframe_receive.accept( + try_outcome!(channel.current_multiframe_receiver.accept( header, buffer, self.max_frame_size, diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index d5532633e8..fd23b0c635 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -168,7 +168,7 @@ impl Display for Preamble { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { Display::fmt(&self.header, f)?; if !self.payload_length.is_sentinel() { - write!(f, " [l={}]", self.payload_length.decode())?; + write!(f, " [len={}]", self.payload_length.decode())?; } Ok(()) } @@ -692,7 +692,7 @@ mod tests { let header = Header::new(Kind::RequestPl, ChannelId(1), Id(2)); let preamble = Preamble::new(header, Varint32::encode(678)); - assert_eq!(preamble.to_string(), "[RequestPl chan: 1 id: 2] [l=678]"); + assert_eq!(preamble.to_string(), "[RequestPl chan: 1 id: 2] [len=678]"); let preamble_no_payload = Preamble::new(header, Varint32::SENTINEL); @@ -703,7 +703,7 @@ mod tests { assert_eq!( frame.to_string(), - "<[RequestPl chan: 1 id: 2] [l=4] 61 73 64 66 (4 bytes)>" + "<[RequestPl chan: 1 id: 2] [len=4] 61 73 64 66 (4 bytes)>" ); let msg_no_payload = OutgoingMessage::new(header, None); From 64c5d2b5dafbe890af95f1b206a5a72d998153c5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:04:26 +0200 Subject: [PATCH 581/735] juliet: Capture maximum frame size invariants using `MaxFrameSize` type --- juliet/src/protocol.rs | 84 ++++++++++++++++++++----- juliet/src/protocol/multiframe.rs | 32 ++++------ juliet/src/protocol/outgoing_message.rs | 41 ++++++------ 3 files changed, 99 insertions(+), 58 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 256af8f1bb..a3fda89ced 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -49,6 +49,63 @@ const UNKNOWN_CHANNEL: ChannelId = ChannelId::new(0); /// Not a reserved id, it may clash with existing ones. const UNKNOWN_ID: Id = Id::new(0); +/// Maximum frame size. +/// +/// The maximum configured frame size is subject to some invariants and is wrapped into a newtype +/// for convenience. +#[derive(Copy, Clone, Debug)] +#[repr(transparent)] +pub struct MaxFrameSize(u32); + +impl MaxFrameSize { + /// The minimum sensible frame size maximum. + /// + /// Set to fit at least a full preamble and a single byte of payload. + pub const MIN: u32 = Header::SIZE as u32 + Varint32::MAX_LEN as u32 + 1; + + /// Recommended default for the maximum frame size. + /// + /// Chosen according to the Juliet RFC. + pub const DEFAULT: MaxFrameSize = MaxFrameSize(4096); + + /// Constructs a new maximum frame size. + /// + /// # Panics + /// + /// Will panic if the given maximum frame size is less than [`MaxFrameSize::MIN`]. + #[inline(always)] + pub const fn new(max_frame_size: u32) -> Self { + assert!(max_frame_size >= Self::MIN); + MaxFrameSize(max_frame_size) + } + + /// Returns the maximum frame size. + #[inline(always)] + pub const fn get(self) -> u32 { + self.0 + } + + /// Returns the maximum frame size cast as `usize`. + #[inline(always)] + pub const fn get_usize(self) -> usize { + // Safe cast on all 32-bit and up systems. + self.0 as usize + } + + /// Returns the maximum frame size without the header size. + #[inline(always)] + pub const fn without_header(self) -> usize { + self.get_usize() - Header::SIZE + } +} + +impl Default for MaxFrameSize { + #[inline(always)] + fn default() -> Self { + MaxFrameSize::DEFAULT + } +} + /// A parser/state machine that processes an incoming stream and is able to construct messages to /// send out. /// @@ -77,7 +134,7 @@ pub struct JulietProtocol { /// Bi-directional channels. channels: [Channel; N], /// The maximum size for a single frame. - max_frame_size: u32, + max_frame_size: MaxFrameSize, } /// A builder for a [`JulietProtocol`] instance. @@ -94,7 +151,7 @@ pub struct ProtocolBuilder { /// Configuration for every channel. channel_config: [ChannelConfiguration; N], /// Maximum frame size. - max_frame_size: u32, + max_frame_size: MaxFrameSize, } impl Default for ProtocolBuilder { @@ -115,7 +172,7 @@ impl ProtocolBuilder { pub const fn with_default_channel_config(config: ChannelConfiguration) -> Self { Self { channel_config: [config; N], - max_frame_size: 4096, + max_frame_size: MaxFrameSize::DEFAULT, } } @@ -145,11 +202,9 @@ impl ProtocolBuilder { /// # Panics /// /// Will panic if the maximum size is too small to hold a header, payload length and at least - /// one byte of payload. + /// one byte of payload (see [`MaxFrameSize::MIN`]). pub const fn max_frame_size(mut self, max_frame_size: u32) -> Self { - assert!(max_frame_size as usize > Header::SIZE + Varint32::MAX_LEN); - - self.max_frame_size = max_frame_size; + self.max_frame_size = MaxFrameSize::new(max_frame_size); self } } @@ -362,16 +417,11 @@ macro_rules! log_frame { impl JulietProtocol { /// Creates a new juliet protocol builder instance. - /// - /// # Panics - /// - /// Will panic if `max_frame_size` is too small to hold header and payload length encoded, i.e. - /// < 9 bytes. #[inline] pub const fn builder(config: ChannelConfiguration) -> ProtocolBuilder { ProtocolBuilder { channel_config: [config; N], - max_frame_size: 1024, + max_frame_size: MaxFrameSize::DEFAULT, } } @@ -404,7 +454,7 @@ impl JulietProtocol { /// Returns the configured maximum frame size. #[inline(always)] - pub const fn max_frame_size(&self) -> u32 { + pub const fn max_frame_size(&self) -> MaxFrameSize { self.max_frame_size } @@ -656,7 +706,7 @@ impl JulietProtocol { let frame_end = Index::new(buffer, *preamble_end + payload_length); // No multi-frame messages allowed! - if *frame_end > self.max_frame_size as usize { + if *frame_end > self.max_frame_size.get_usize() { return err_msg(header, ErrorKind::SegmentViolation); } @@ -856,12 +906,12 @@ fn err_msg(header: Header, kind: ErrorKind) -> Outcome { /// /// Panics in debug mode if the given payload length is larger than `u32::MAX`. #[inline] -pub const fn payload_is_multi_frame(max_frame_size: u32, payload_len: usize) -> bool { +pub const fn payload_is_multi_frame(max_frame_size: MaxFrameSize, payload_len: usize) -> bool { debug_assert!( payload_len <= u32::MAX as usize, "payload cannot exceed `u32::MAX`" ); payload_len as u64 + Header::SIZE as u64 + (Varint32::encode(payload_len as u32)).len() as u64 - > max_frame_size as u64 + > max_frame_size.get() as u64 } diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index ccfd91fd67..542d04c863 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -18,7 +18,7 @@ use crate::{ varint::decode_varint32, }; -use super::outgoing_message::OutgoingMessage; +use super::{outgoing_message::OutgoingMessage, MaxFrameSize}; /// The multi-frame message receival state of a single channel, as specified in the RFC. /// @@ -59,24 +59,14 @@ impl MultiframeReceiver { /// `max_payload_size` is the maximum size of a payload across multiple frames. If it is /// exceeded, the `payload_exceeded_error_kind` function is used to construct an error `Header` /// to return. - /// - /// # Panics - /// - /// Panics in debug builds if `max_frame_size` is too small to hold a maximum sized varint and - /// a header. pub(super) fn accept( &mut self, header: Header, buffer: &mut BytesMut, - max_frame_size: u32, + max_frame_size: MaxFrameSize, max_payload_size: u32, payload_exceeded_error_kind: ErrorKind, ) -> Outcome, OutgoingMessage> { - debug_assert!( - max_frame_size >= 10, - "maximum frame size must be enough to hold header and varint" - ); - // TODO: Use tracing to log frames here. match self { @@ -140,12 +130,14 @@ impl MultiframeReceiver { // Determine whether we expect an intermediate or end segment. let bytes_remaining = *total_payload_size as usize - payload.remaining(); - let max_data_in_frame = max_frame_size as usize - Header::SIZE; + let max_data_in_frame = max_frame_size.without_header(); if bytes_remaining > max_data_in_frame { // Intermediate segment. - if buffer.remaining() < max_frame_size as usize { - return Outcome::incomplete(max_frame_size as usize - buffer.remaining()); + if buffer.remaining() < max_frame_size.get_usize() { + return Outcome::incomplete( + max_frame_size.get_usize() - buffer.remaining(), + ); } // Discard header. @@ -219,7 +211,7 @@ impl InitialFrameData { fn detect_starting_segment( header: Header, buffer: &BytesMut, - max_frame_size: u32, + max_frame_size: MaxFrameSize, max_payload_size: u32, payload_exceeded_error_kind: ErrorKind, ) -> Outcome { @@ -237,7 +229,7 @@ fn detect_starting_segment( // We have a valid varint32. let preamble_len = Header::SIZE + payload_size.offset.get() as usize; - let max_data_in_frame = max_frame_size - preamble_len as u32; + let max_data_in_frame = max_frame_size.get() - preamble_len as u32; // Determine how many additional bytes are needed for frame completion. let segment_len = (max_data_in_frame as usize).min(payload_size.value as usize); @@ -261,19 +253,19 @@ mod tests { use crate::{ header::{ErrorKind, Header, Kind}, - protocol::{FrameIter, OutgoingMessage}, + protocol::{FrameIter, MaxFrameSize, OutgoingMessage}, ChannelId, Id, Outcome, }; use super::MultiframeReceiver; /// Frame size used for multiframe tests. - const MAX_FRAME_SIZE: u32 = 16; + const MAX_FRAME_SIZE: MaxFrameSize = MaxFrameSize::new(16); /// Maximum size of a payload of a single frame message. /// /// One byte is required to encode the length, which is <= 16. - const MAX_SINGLE_FRAME_PAYLOAD_SIZE: u32 = MAX_FRAME_SIZE - Header::SIZE as u32 - 1; + const MAX_SINGLE_FRAME_PAYLOAD_SIZE: u32 = MAX_FRAME_SIZE.get() - Header::SIZE as u32 - 1; /// Maximum payload size used in testing. const MAX_PAYLOAD_SIZE: u32 = 4096; diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index fd23b0c635..2320692878 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -15,7 +15,7 @@ use bytes::{buf::Chain, Buf, Bytes}; use crate::{header::Header, varint::Varint32}; -use super::payload_is_multi_frame; +use super::{payload_is_multi_frame, MaxFrameSize}; /// A message to be sent to the peer. /// @@ -45,7 +45,7 @@ impl OutgoingMessage { /// Returns whether or not a message will span multiple frames. #[inline(always)] - pub const fn is_multi_frame(&self, max_frame_size: u32) -> bool { + pub const fn is_multi_frame(&self, max_frame_size: MaxFrameSize) -> bool { if let Some(ref payload) = self.payload { payload_is_multi_frame(max_frame_size, payload.len()) } else { @@ -66,7 +66,7 @@ impl OutgoingMessage { /// /// A slightly more convenient `frames` method, with a fixed `max_frame_size`. The resulting /// iterator will use slightly more memory than the equivalent `FrameIter`. - pub fn frame_iter(self, max_frame_size: u32) -> impl Iterator { + pub fn frame_iter(self, max_frame_size: MaxFrameSize) -> impl Iterator { let mut frames = Some(self.frames()); iter::from_fn(move || { @@ -95,8 +95,8 @@ impl OutgoingMessage { /// Calculates the number of frames this message will produce. #[inline] - pub const fn num_frames(&self, max_frame_size: u32) -> usize { - let usable_size = max_frame_size as usize - Header::SIZE; + pub const fn num_frames(&self, max_frame_size: MaxFrameSize) -> usize { + let usable_size = max_frame_size.without_header(); let num_frames = (self.non_header_len() + usable_size - 1) / usable_size; if num_frames == 0 { @@ -108,7 +108,7 @@ impl OutgoingMessage { /// Calculates the total length in bytes of all frames produced by this message. #[inline] - pub const fn total_len(&self, max_frame_size: u32) -> usize { + pub const fn total_len(&self, max_frame_size: MaxFrameSize) -> usize { self.num_frames(max_frame_size) * Header::SIZE + self.non_header_len() } @@ -118,9 +118,7 @@ impl OutgoingMessage { /// with no regard for frame boundaries, thus it is only suitable to send all frames of the /// message with no interleaved data. #[inline] - pub fn iter_bytes(self, max_frame_size: u32) -> ByteIter { - debug_assert!(max_frame_size > 10); - + pub fn iter_bytes(self, max_frame_size: MaxFrameSize) -> ByteIter { let length_prefix = self .payload .as_ref() @@ -140,7 +138,7 @@ impl OutgoingMessage { /// method is not zero-copy, but still consumes `self` to avoid a conversion of a potentially /// unshared payload buffer. #[inline] - pub fn to_bytes(self, max_frame_size: u32) -> Bytes { + pub fn to_bytes(self, max_frame_size: MaxFrameSize) -> Bytes { let mut everything = self.iter_bytes(max_frame_size); everything.copy_to_bytes(everything.remaining()) } @@ -229,7 +227,7 @@ impl FrameIter { /// While different [`OutgoingMessage`]s can have their send order mixed or interspersed, a /// caller MUST NOT send [`OutgoingFrame`]s of a single message in any order but the one /// produced by this method. In other words, reorder messages, but not frames within a message. - pub fn next_owned(mut self, max_frame_size: u32) -> (OutgoingFrame, Option) { + pub fn next_owned(mut self, max_frame_size: MaxFrameSize) -> (OutgoingFrame, Option) { if let Some(ref payload) = self.msg.payload { let mut payload_remaining = payload.len() - self.bytes_processed; @@ -245,7 +243,7 @@ impl FrameIter { Preamble::new(self.msg.header, Varint32::SENTINEL) }; - let frame_capacity = max_frame_size as usize - preamble.len(); + let frame_capacity = max_frame_size.get_usize() - preamble.len(); let frame_payload_len = frame_capacity.min(payload_remaining); let range = self.bytes_processed..(self.bytes_processed + frame_payload_len); @@ -290,7 +288,7 @@ pub struct ByteIter { // interface, which can only deal with usize arguments anyway. consumed: usize, /// Maximum frame size at construction. - max_frame_size: u32, + max_frame_size: MaxFrameSize, } impl ByteIter { @@ -314,8 +312,8 @@ impl Buf for ByteIter { } // Determine where we are. - let frames_completed = self.consumed / self.max_frame_size as usize; - let frame_progress = self.consumed % self.max_frame_size as usize; + let frames_completed = self.consumed / self.max_frame_size.get_usize(); + let frame_progress = self.consumed % self.max_frame_size.get_usize(); let in_first_frame = frames_completed == 0; if frame_progress < Header::SIZE { @@ -331,13 +329,13 @@ impl Buf for ByteIter { } // Currently sending a payload chunk. - let space_in_frame = self.max_frame_size as usize - Header::SIZE; + let space_in_frame = self.max_frame_size.without_header(); let first_preamble = Header::SIZE + self.length_prefix.len(); let (frame_payload_start, frame_payload_progress, frame_payload_end) = if in_first_frame { ( 0, frame_progress - first_preamble, - self.max_frame_size as usize - first_preamble, + self.max_frame_size.get_usize() - first_preamble, ) } else { let start = frames_completed * space_in_frame - self.length_prefix.len(); @@ -454,6 +452,7 @@ mod tests { use crate::{ header::{Header, Kind}, + protocol::MaxFrameSize, varint::Varint32, ChannelId, Id, }; @@ -461,7 +460,7 @@ mod tests { use super::{FrameIter, OutgoingMessage, Preamble}; /// Maximum frame size used across tests. - const MAX_FRAME_SIZE: u32 = 16; + const MAX_FRAME_SIZE: MaxFrameSize = MaxFrameSize::new(16); /// A reusable sample payload. const PAYLOAD: &[u8] = &[ @@ -542,7 +541,7 @@ mod tests { assert_eq!(converted_to_bytes, expected_bytestring); // Finally, we do a trickle-test with various step sizes. - for step_size in 1..=(MAX_FRAME_SIZE as usize * 2) { + for step_size in 1..=(MAX_FRAME_SIZE.get_usize() * 2) { let mut buf: Vec = Vec::new(); let mut bytes_iter = msg.clone().iter_bytes(MAX_FRAME_SIZE); @@ -699,7 +698,7 @@ mod tests { assert_eq!(preamble_no_payload.to_string(), "[RequestPl chan: 1 id: 2]"); let msg = OutgoingMessage::new(header, Some(Bytes::from(&b"asdf"[..]))); - let (frame, _) = msg.frames().next_owned(4096); + let (frame, _) = msg.frames().next_owned(Default::default()); assert_eq!( frame.to_string(), @@ -707,7 +706,7 @@ mod tests { ); let msg_no_payload = OutgoingMessage::new(header, None); - let (frame, _) = msg_no_payload.frames().next_owned(4096); + let (frame, _) = msg_no_payload.frames().next_owned(Default::default()); assert_eq!(frame.to_string(), "<[RequestPl chan: 1 id: 2]>"); } From 0e21f52cead801ef9501a4fa62d8589881e488b7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:15:30 +0200 Subject: [PATCH 582/735] juliet: Fix redundant preamble calculation in `next_owned` --- juliet/src/protocol/outgoing_message.rs | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 2320692878..aa7e2770f8 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -231,17 +231,14 @@ impl FrameIter { if let Some(ref payload) = self.msg.payload { let mut payload_remaining = payload.len() - self.bytes_processed; + // If this is the first frame, include the message payload length. let length_prefix = if self.bytes_processed == 0 { Varint32::encode(payload_remaining as u32) } else { Varint32::SENTINEL }; - let preamble = if self.bytes_processed == 0 { - Preamble::new(self.msg.header, length_prefix) - } else { - Preamble::new(self.msg.header, Varint32::SENTINEL) - }; + let preamble = Preamble::new(self.msg.header, length_prefix); let frame_capacity = max_frame_size.get_usize() - preamble.len(); let frame_payload_len = frame_capacity.min(payload_remaining); From ccc324c429906efa367292349abbdaf7f566fd1f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:22:37 +0200 Subject: [PATCH 583/735] juliet: Use 64-bit IO ids --- Cargo.lock | 7 ------- juliet/Cargo.toml | 1 - juliet/src/io.rs | 10 ++++++---- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 3135f084a8..77ec1ac2f1 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3196,7 +3196,6 @@ dependencies = [ "derivative", "derive_more 1.0.0-beta.2", "futures", - "portable-atomic", "proptest", "proptest-attr-macro", "proptest-derive", @@ -4068,12 +4067,6 @@ dependencies = [ "pnet_sys", ] -[[package]] -name = "portable-atomic" -version = "1.3.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "767eb9f07d4a5ebcb39bbf2d452058a93c011373abf6832e24194a1c3f004794" - [[package]] name = "ppv-lite86" version = "0.2.17" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index b992e4828d..b45dbf39d1 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -11,7 +11,6 @@ bimap = "0.6.3" bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" futures = "0.3.28" -portable-atomic = "1.3.3" thiserror = "1.0.40" tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } tracing = { version = "0.1.37", optional = true } diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 78377e1a44..0f90e735d8 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -27,12 +27,14 @@ use std::{ collections::{BTreeSet, VecDeque}, io, - sync::{atomic::Ordering, Arc}, + sync::{ + atomic::{AtomicU64, Ordering}, + Arc, + }, }; use bimap::BiMap; use bytes::{Buf, Bytes, BytesMut}; -use portable_atomic::AtomicU128; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt}, @@ -157,7 +159,7 @@ pub enum CoreError { /// endpoint. They are used to allow for buffering large numbers of items without exhausting the /// pool of protocol level request IDs, which are limited to `u16`s. #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] -pub struct IoId(u128); +pub struct IoId(u64); /// IO layer for the juliet protocol. /// @@ -758,7 +760,7 @@ pub struct RequestHandle { /// /// IoIDs are just generated sequentially until they run out (which at 1 billion at second /// takes roughly 10^22 years). - next_io_id: Arc, + next_io_id: Arc, } /// Simple [`IoCore`] handle. From f840d938dcec758368db263229eafda0feee9246 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Mon, 31 Jul 2023 15:24:18 +0200 Subject: [PATCH 584/735] juliet: Apply another set of suggestions from code review by @Fraser999 More spelling changes. Co-authored-by: Fraser Hutchison <190532+Fraser999@users.noreply.github.com> --- juliet/src/lib.rs | 4 ++-- juliet/src/protocol/outgoing_message.rs | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 1db91fb088..ff3788d976 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -226,8 +226,8 @@ impl ChannelConfiguration { /// Creates a configuration with the given maximum size for response payloads (default is 0). /// /// There is nothing magical about payload sizes, a size of 0 allows for payloads that are no - /// longer than 0 bytes in size. On the protocol level, there is a distinction between a request - /// with a zero-sized payload and no payload. + /// longer than 0 bytes in size. On the protocol level, there is a distinction between a + /// response with a zero-sized payload and no payload. pub const fn with_max_response_payload_size( mut self, max_response_payload_size: u32, diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index aa7e2770f8..284ffb040f 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -35,7 +35,7 @@ pub struct OutgoingMessage { } impl OutgoingMessage { - /// Constructs a new outgoing messages. + /// Constructs a new outgoing message. // Note: Do not make this function available to users of the library, to avoid them constructing // messages by accident that may violate the protocol. #[inline(always)] From 1e551c3cf4f3b71c37f1efedb86bf57402295c2a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:36:48 +0200 Subject: [PATCH 585/735] juliet: Rename `NewRequest` to `NewOutgoingRequest` to clarify types purpose --- juliet/src/rpc.rs | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 01ac7dd3f5..b6816e587d 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -89,7 +89,7 @@ impl RpcBuilder { /// The client is used to create new RPC calls through [`JulietRpcClient::create_request`]. #[derive(Debug)] pub struct JulietRpcClient { - new_request_sender: UnboundedSender, + new_request_sender: UnboundedSender, request_handle: RequestHandle, } @@ -119,11 +119,11 @@ pub struct JulietRpcServer { core: IoCore, handle: Handle, pending: HashMap>, - new_requests_receiver: UnboundedReceiver, + new_requests_receiver: UnboundedReceiver, } /// Internal structure representing a new outgoing request. -struct NewRequest { +struct NewOutgoingRequest { /// The already reserved ticket. ticket: RequestTicket, /// Request guard to store results. @@ -204,7 +204,7 @@ where biased; opt_new_request = self.new_requests_receiver.recv() => { - if let Some(NewRequest { ticket, guard, payload }) = opt_new_request { + if let Some(NewOutgoingRequest { ticket, guard, payload }) = opt_new_request { match self.handle.enqueue_request(ticket, payload) { Ok(io_id) => { // The request will be sent out, store it in our pending map. @@ -278,7 +278,7 @@ impl Drop for JulietRpcServer { guard.set_and_notify(Err(RequestError::Shutdown)); } - while let Ok(NewRequest { + while let Ok(NewOutgoingRequest { ticket: _, guard, payload, @@ -352,7 +352,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { fn do_enqueue_request(self, ticket: RequestTicket) -> RequestGuard { let inner = Arc::new(RequestGuardInner::new()); - match self.client.new_request_sender.send(NewRequest { + match self.client.new_request_sender.send(NewOutgoingRequest { ticket, guard: inner.clone(), payload: self.payload, From c0b70e74146580d1dba56675d34a28e65e3898dd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Mon, 31 Jul 2023 15:37:39 +0200 Subject: [PATCH 586/735] juliet: Fix bug with wrong header when cancelling responses Co-authored-by: Fraser Hutchison <190532+Fraser999@users.noreply.github.com> --- juliet/src/protocol.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index a3fda89ced..56dfe909e1 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -612,7 +612,7 @@ impl JulietProtocol { return Ok(None); } - let header = Header::new(header::Kind::CancelReq, channel, id); + let header = Header::new(header::Kind::CancelResp, channel, id); Ok(Some(OutgoingMessage::new(header, None))) } From 6fd81d5996ada8c0dd35cf9878c49756ec1a2f80 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:39:14 +0200 Subject: [PATCH 587/735] juliet: Fix documentation of `Preamble` --- juliet/src/protocol/outgoing_message.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 284ffb040f..a8387e12bf 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -144,7 +144,7 @@ impl OutgoingMessage { } } -/// Combination of header and potential frame payload length. +/// Combination of header and potential message payload length. /// /// A message with a payload always starts with an initial frame that has a header and a varint /// encoded payload length. This type combines the two, and allows for the payload length to From bc709545eb31e95203f71c668d7aca21f8853733 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:44:26 +0200 Subject: [PATCH 588/735] juliet: Clarify message ordering requirements --- juliet/src/protocol/outgoing_message.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index a8387e12bf..1ab27e0552 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -22,9 +22,9 @@ use super::{payload_is_multi_frame, MaxFrameSize}; /// [`OutgoingMessage`]s are generated when the protocol requires data to be sent to the peer. /// Unless the connection is terminated, they should not be dropped, but can be sent in any order. /// -/// While *frames* can be sent in any order, a message may span one or more frames, which can be -/// interspersed with other messages at will. In general, the [`OutgoingMessage::frames()`] iterator -/// should be used, even for single-frame messages. +/// A message that spans one or more frames must have its internal frame order preserved. In +/// general, the [`OutgoingMessage::frames()`] iterator should be used, even for single-frame +/// messages. #[must_use] #[derive(Clone, Debug, Eq, PartialEq)] pub struct OutgoingMessage { From f156a293e223c2facb2ee7bdd25933c54de13b1f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:49:51 +0200 Subject: [PATCH 589/735] juliet: Remove `Display` for `Header` implementation --- juliet/src/header.rs | 13 +++---------- juliet/src/protocol/outgoing_message.rs | 2 +- 2 files changed, 4 insertions(+), 11 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 070af2694a..0858b843df 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -2,7 +2,7 @@ //! //! This module is typically only used by the protocol implementation (see //! [`protocol`](crate::protocol)), but may be of interested to those writing low level tooling. -use std::fmt::{Debug, Display}; +use std::fmt::Debug; use bytemuck::{Pod, Zeroable}; use thiserror::Error; @@ -39,13 +39,6 @@ impl Debug for Header { } } -impl Display for Header { - #[inline(always)] - fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - Debug::fmt(self, f) - } -} - /// Error kind, from the kind byte. #[derive(Copy, Clone, Debug, Error, Eq, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] @@ -383,8 +376,8 @@ mod tests { assert_eq!(rebuilt, header); assert_eq!(reencoded, <[u8; Header::SIZE]>::from(header)); - // Ensure display/debug don't panic. - assert_eq!(format!("{}", header), format!("{:?}", header)); + // Ensure debug doesn't panic. + assert_eq!(format!("{:?}", header), format!("{:?}", header)); // Check bytewise it is the same. assert_eq!(&reencoded[..], header.as_ref()); diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index 1ab27e0552..a1b1e39f5b 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -164,7 +164,7 @@ struct Preamble { impl Display for Preamble { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - Display::fmt(&self.header, f)?; + Debug::fmt(&self.header, f)?; if !self.payload_length.is_sentinel() { write!(f, " [len={}]", self.payload_length.decode())?; } From e7b2ebe2d1bb09c21f2839955c311fd0ee8a97cc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 31 Jul 2023 15:54:03 +0200 Subject: [PATCH 590/735] juliet: Performed code appendectomy on `EnqueueError::LocalProtocolViolation` --- juliet/src/io.rs | 3 --- juliet/src/rpc.rs | 6 ------ 2 files changed, 9 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 0f90e735d8..3aa50ad330 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -792,9 +792,6 @@ pub enum EnqueueError { /// The request limit for locally buffered requests was hit, try again. #[error("request limit hit")] BufferLimitHit(Option), - /// Violation of local invariants, this is likely a bug in this library or the calling code. - #[error("local protocol violation during enqueueing")] - LocalProtocolViolation(#[from] LocalProtocolViolation), } /// A reserved slot in the memory buffer of [`IoCore`], on a specific channel. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index b6816e587d..6b9c7ffdae 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -554,9 +554,6 @@ impl IncomingRequest { // TODO: Add seperate type to avoid this. unreachable!("cannot hit request limit when responding") } - EnqueueError::LocalProtocolViolation(_) => { - todo!("what to do with this?") - } } } } @@ -580,9 +577,6 @@ impl IncomingRequest { EnqueueError::BufferLimitHit(_) => { unreachable!("cannot hit request limit when responding") } - EnqueueError::LocalProtocolViolation(_) => { - todo!("what to do with this?") - } } } } From c3f27ff86704558388f3f20d13de539eda6adb9f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 31 Jul 2023 18:07:38 +0200 Subject: [PATCH 591/735] Rename Delete to Purge --- .../src/core/engine_state/execution_effect.rs | 2 +- execution_engine/src/core/engine_state/mod.rs | 4 +-- execution_engine/src/core/engine_state/op.rs | 6 ++-- .../src/core/runtime/auction_internal.rs | 2 +- .../src/core/runtime_context/mod.rs | 6 ++-- .../src/core/tracking_copy/mod.rs | 6 ++-- execution_engine/src/shared/transform.rs | 30 +++++++++---------- .../src/storage/global_state/in_memory.rs | 2 +- .../src/storage/global_state/lmdb.rs | 6 ++-- .../src/storage/global_state/mod.rs | 4 +-- .../src/storage/global_state/scratch.rs | 4 +-- .../src/test/system_contracts/auction/bids.rs | 2 +- types/src/execution_result.rs | 14 ++++----- 13 files changed, 44 insertions(+), 44 deletions(-) diff --git a/execution_engine/src/core/engine_state/execution_effect.rs b/execution_engine/src/core/engine_state/execution_effect.rs index 193d09b4c5..a157435f75 100644 --- a/execution_engine/src/core/engine_state/execution_effect.rs +++ b/execution_engine/src/core/engine_state/execution_effect.rs @@ -31,7 +31,7 @@ impl From for ExecutionEffect { | Transform::AddUInt256(_) | Transform::AddUInt512(_) | Transform::AddKeys(_) => ops.insert_add(key, Op::Add), - Transform::Delete => ops.insert_add(key, Op::Delete), + Transform::Purge => ops.insert_add(key, Op::Purge), }; transforms.insert_add(key, transform); } diff --git a/execution_engine/src/core/engine_state/mod.rs b/execution_engine/src/core/engine_state/mod.rs index 9069c7b5ae..c3137d5646 100644 --- a/execution_engine/src/core/engine_state/mod.rs +++ b/execution_engine/src/core/engine_state/mod.rs @@ -509,7 +509,7 @@ where // Post-migration clean up for withdraw_key in withdraw_keys { - tracking_copy.borrow_mut().delete(withdraw_key); + tracking_copy.borrow_mut().purge(withdraw_key); } } @@ -605,7 +605,7 @@ where match self .state - .delete_keys(correlation_id, state_root_hash, keys_to_delete) + .purge_keys(correlation_id, state_root_hash, keys_to_delete) { Ok(DeleteResult::Deleted(post_state_hash)) => { Ok(PruneResult::Success { post_state_hash }) diff --git a/execution_engine/src/core/engine_state/op.rs b/execution_engine/src/core/engine_state/op.rs index c8936f343c..2fb8c2cd4b 100644 --- a/execution_engine/src/core/engine_state/op.rs +++ b/execution_engine/src/core/engine_state/op.rs @@ -14,8 +14,8 @@ pub enum Op { Write, /// Add a value into a `Key`. Add, - /// Delete a value under a `Key`. - Delete, + /// Purge a value under a `Key`. + Purge, /// No operation. NoOp, } @@ -59,7 +59,7 @@ impl From<&Op> for casper_types::OpKind { Op::Write => casper_types::OpKind::Write, Op::Add => casper_types::OpKind::Add, Op::NoOp => casper_types::OpKind::NoOp, - Op::Delete => casper_types::OpKind::Delete, + Op::Purge => casper_types::OpKind::Delete, } } } diff --git a/execution_engine/src/core/runtime/auction_internal.rs b/execution_engine/src/core/runtime/auction_internal.rs index 2daec67d14..76f5f269f3 100644 --- a/execution_engine/src/core/runtime/auction_internal.rs +++ b/execution_engine/src/core/runtime/auction_internal.rs @@ -100,7 +100,7 @@ where ) -> Result<(), Error> { let unbond_key = Key::Unbond(account_hash); if unbonding_purses.is_empty() { - self.context.delete_gs_unsafe(unbond_key); + self.context.purge_gs_unsafe(unbond_key); Ok(()) } else { self.context diff --git a/execution_engine/src/core/runtime_context/mod.rs b/execution_engine/src/core/runtime_context/mod.rs index 97147c8fc4..589977e3b2 100644 --- a/execution_engine/src/core/runtime_context/mod.rs +++ b/execution_engine/src/core/runtime_context/mod.rs @@ -924,15 +924,15 @@ where Ok(()) } - /// Deletes a key from the global state. + /// PUrges a key from the global state. /// /// Use with caution - there is no validation done as the key is assumed to be validated /// already. - pub(crate) fn delete_gs_unsafe(&mut self, key: K) + pub(crate) fn purge_gs_unsafe(&mut self, key: K) where K: Into, { - self.tracking_copy.borrow_mut().delete(key.into()); + self.tracking_copy.borrow_mut().purge(key.into()); } /// Writes data to a global state and charges for bytes stored. diff --git a/execution_engine/src/core/tracking_copy/mod.rs b/execution_engine/src/core/tracking_copy/mod.rs index e57becff11..02653e5e63 100644 --- a/execution_engine/src/core/tracking_copy/mod.rs +++ b/execution_engine/src/core/tracking_copy/mod.rs @@ -353,10 +353,10 @@ impl> TrackingCopy { self.journal.push((normalized_key, Transform::Write(value))); } - /// Deletes a `key`. - pub(crate) fn delete(&mut self, key: Key) { + /// Purges a `key`. + pub(crate) fn purge(&mut self, key: Key) { let normalized_key = key.normalize(); - self.journal.push((normalized_key, Transform::Delete)); + self.journal.push((normalized_key, Transform::Purge)); } /// Ok(None) represents missing key to which we want to "add" some value. diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index 2462f0a522..ff9db415cb 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -86,8 +86,8 @@ pub enum Transform { /// /// This transform assumes that the existing stored value is either an Account or a Contract. AddKeys(NamedKeys), - /// Deletes a key. - Delete, + /// Purges a key. + Purge, /// Represents the case where applying a transform would cause an error. #[data_size(skip)] Failure(Error), @@ -236,7 +236,7 @@ impl Transform { Err(StoredValueTypeMismatch::new(expected, found).into()) } }, - Transform::Delete => { + Transform::Purge => { // Delete does not produce new values, it just consumes a stored value that it // receives. Ok(None) @@ -284,13 +284,13 @@ impl Add for Transform { (a @ Transform::Failure(_), _) => a, (_, b @ Transform::Failure(_)) => b, (_, b @ Transform::Write(_)) => b, - (_, Transform::Delete) => Transform::Delete, - (Transform::Delete, b) => b, + (_, Transform::Purge) => Transform::Purge, + (Transform::Purge, b) => b, (Transform::Write(v), b) => { // second transform changes value being written match b.apply(v) { Ok(Some(new_value)) => Transform::Write(new_value), - Ok(None) => Transform::Delete, + Ok(None) => Transform::Purge, Err(error) => Transform::Failure(error), } } @@ -401,7 +401,7 @@ impl From<&Transform> for casper_types::Transform { .collect(), ), Transform::Failure(error) => casper_types::Transform::Failure(error.to_string()), - Transform::Delete => casper_types::Transform::Delete, + Transform::Purge => casper_types::Transform::Purge, } } } @@ -432,7 +432,7 @@ pub mod gens { buf.copy_from_slice(&u); Transform::AddUInt512(buf.into()) }), - Just(Transform::Delete) + Just(Transform::Purge) ] } } @@ -907,7 +907,7 @@ mod tests { fn delete_should_produce_correct_transform() { { // delete + write == write - let lhs = Transform::Delete; + let lhs = Transform::Purge; let rhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); let new_transform = lhs + rhs.clone(); @@ -917,21 +917,21 @@ mod tests { { // delete + identity == delete (delete modifies the global state, identity does not // modify, so we need to preserve delete) - let new_transform = Transform::Delete + Transform::Identity; - assert_eq!(new_transform, Transform::Delete); + let new_transform = Transform::Purge + Transform::Identity; + assert_eq!(new_transform, Transform::Purge); } { // delete + failure == failure let failure = Transform::Failure(Error::Serialization(bytesrepr::Error::Formatting)); - let new_transform = Transform::Delete + failure.clone(); + let new_transform = Transform::Purge + failure.clone(); assert_eq!(new_transform, failure); } { // write + delete == delete let lhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); - let rhs = Transform::Delete; + let rhs = Transform::Purge; let new_transform = lhs + rhs.clone(); assert_eq!(new_transform, rhs); @@ -940,7 +940,7 @@ mod tests { { // add + delete == delete for lhs in add_transforms(123) { - let rhs = Transform::Delete; + let rhs = Transform::Purge; let new_transform = lhs + rhs.clone(); assert_eq!(new_transform, rhs); } @@ -949,7 +949,7 @@ mod tests { { // delete + add == add for rhs in add_transforms(123) { - let lhs = Transform::Delete; + let lhs = Transform::Purge; let new_transform = lhs + rhs.clone(); assert_eq!(new_transform, rhs); } diff --git a/execution_engine/src/storage/global_state/in_memory.rs b/execution_engine/src/storage/global_state/in_memory.rs index a132e74457..a54046ab28 100644 --- a/execution_engine/src/storage/global_state/in_memory.rs +++ b/execution_engine/src/storage/global_state/in_memory.rs @@ -284,7 +284,7 @@ impl StateProvider for InMemoryGlobalState { Ok(missing_descendants) } - fn delete_keys( + fn purge_keys( &self, correlation_id: CorrelationId, mut root: Digest, diff --git a/execution_engine/src/storage/global_state/lmdb.rs b/execution_engine/src/storage/global_state/lmdb.rs index 577741b75a..35f0434e41 100644 --- a/execution_engine/src/storage/global_state/lmdb.rs +++ b/execution_engine/src/storage/global_state/lmdb.rs @@ -293,8 +293,8 @@ impl StateProvider for LmdbGlobalState { Ok(missing_hashes) } - /// Delete keys. - fn delete_keys( + /// Purge keys. + fn purge_keys( &self, correlation_id: CorrelationId, mut state_root_hash: Digest, @@ -494,7 +494,7 @@ mod tests { tmp.insert(*key, Transform::Write(value.to_owned())); } for TestPair { key, .. } in &tail { - tmp.insert(*key, Transform::Delete); + tmp.insert(*key, Transform::Purge); } tmp diff --git a/execution_engine/src/storage/global_state/mod.rs b/execution_engine/src/storage/global_state/mod.rs index dfff79ef62..c2faca6ab0 100644 --- a/execution_engine/src/storage/global_state/mod.rs +++ b/execution_engine/src/storage/global_state/mod.rs @@ -123,8 +123,8 @@ pub trait StateProvider { trie_raw: &[u8], ) -> Result, Self::Error>; - /// Delete key from the global state. - fn delete_keys( + /// Purge keys from the global state. + fn purge_keys( &self, correlation_id: CorrelationId, root: Digest, diff --git a/execution_engine/src/storage/global_state/scratch.rs b/execution_engine/src/storage/global_state/scratch.rs index 6b6b3c42b9..e7c7b13bb5 100644 --- a/execution_engine/src/storage/global_state/scratch.rs +++ b/execution_engine/src/storage/global_state/scratch.rs @@ -331,7 +331,7 @@ impl StateProvider for ScratchGlobalState { Ok(missing_descendants) } - fn delete_keys( + fn purge_keys( &self, correlation_id: CorrelationId, mut state_root_hash: Digest, @@ -560,7 +560,7 @@ mod tests { tmp.insert(*key, Transform::Write(value.to_owned())); } for TestPair { key, .. } in &tail { - tmp.insert(*key, Transform::Delete); + tmp.insert(*key, Transform::Purge); } tmp diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index 28cdc67bbb..a6892c94bc 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -3498,7 +3498,7 @@ fn should_continue_auction_state_from_release_1_4_x() { .transforms .iter() .filter_map(|(key, transform)| { - if transform == &Transform::Delete { + if transform == &Transform::Purge { Some(key) } else { None diff --git a/types/src/execution_result.rs b/types/src/execution_result.rs index 54ae4bedcd..2e77cd17b1 100644 --- a/types/src/execution_result.rs +++ b/types/src/execution_result.rs @@ -560,8 +560,8 @@ pub enum Transform { Failure(String), /// Writes the given Unbonding to global state. WriteUnbonding(Vec), - /// Deletes a key. - Delete, + /// Purges a key. + Purge, } impl Transform { @@ -586,7 +586,7 @@ impl Transform { Transform::AddKeys(_) => TransformTag::AddKeys, Transform::Failure(_) => TransformTag::Failure, Transform::WriteUnbonding(_) => TransformTag::WriteUnbonding, - Transform::Delete => TransformTag::Delete, + Transform::Purge => TransformTag::Delete, } } } @@ -647,7 +647,7 @@ impl ToBytes for Transform { Transform::WriteUnbonding(value) => { buffer.extend(value.to_bytes()?); } - Transform::Delete => {} + Transform::Purge => {} } Ok(buffer) } @@ -673,7 +673,7 @@ impl ToBytes for Transform { Transform::WriteBid(value) => value.serialized_length(), Transform::WriteWithdraw(value) => value.serialized_length(), Transform::WriteUnbonding(value) => value.serialized_length(), - Transform::Delete => 0, + Transform::Purge => 0, }; U8_SERIALIZED_LENGTH + body_len } @@ -749,7 +749,7 @@ impl FromBytes for Transform { as FromBytes>::from_bytes(remainder)?; Ok((Transform::WriteUnbonding(unbonding_purses), remainder)) } - TransformTag::Delete => Ok((Transform::Delete, remainder)), + TransformTag::Delete => Ok((Transform::Purge, remainder)), } } } @@ -780,7 +780,7 @@ impl Distribution for Standard { Transform::AddKeys(named_keys) } 12 => Transform::Failure(rng.gen::().to_string()), - 13 => Transform::Delete, + 13 => Transform::Purge, _ => unreachable!(), } } From 60ebbef40e0432322a759aaff39641896dc351c4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 2 Aug 2023 13:57:09 +0200 Subject: [PATCH 592/735] juliet: Replace `varint_length_cutover` with additional test cases of known values test --- juliet/src/varint.rs | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 9324e5535e..0c6dd55df6 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -224,16 +224,31 @@ mod tests { } #[test] - fn decode_known_values() { + fn decode_known_values_and_crossover_points() { check_decode(0x00000000, &[0x00]); check_decode(0x00000040, &[0x40]); check_decode(0x0000007f, &[0x7f]); + check_decode(0x00000080, &[0x80, 0x01]); + check_decode(0x00000081, &[0x81, 0x01]); check_decode(0x000000ff, &[0xff, 0x01]); + check_decode(0x00003fff, &[0xff, 0x7f]); + + check_decode(0x00004000, &[0x80, 0x80, 0x01]); + check_decode(0x00004001, &[0x81, 0x80, 0x01]); check_decode(0x0000ffff, &[0xff, 0xff, 0x03]); - check_decode(u32::MAX, &[0xff, 0xff, 0xff, 0xff, 0x0f]); + check_decode(0x001fffff, &[0xff, 0xff, 0x7f]); + + check_decode(0x00200000, &[0x80, 0x80, 0x80, 0x01]); + check_decode(0x00200001, &[0x81, 0x80, 0x80, 0x01]); + check_decode(0x0fffffff, &[0xff, 0xff, 0xff, 0x7f]); + + check_decode(0x10000000, &[0x80, 0x80, 0x80, 0x80, 0x01]); + check_decode(0x10000001, &[0x81, 0x80, 0x80, 0x80, 0x01]); check_decode(0xf0000000, &[0x80, 0x80, 0x80, 0x80, 0x0f]); check_decode(0x12345678, &[0xf8, 0xac, 0xd1, 0x91, 0x01]); + check_decode(0xffffffff, &[0xff, 0xFF, 0xFF, 0xFF, 0x0F]); + check_decode(u32::MAX, &[0xff, 0xff, 0xff, 0xff, 0x0f]); } #[proptest] @@ -297,13 +312,4 @@ mod tests { fn working_debug_impl(value: u32) { format!("{:?}", Varint32::encode(value)); } - - #[test] - #[ignore] - fn varint_length_cutover() { - for n in 0..u32::MAX { - let len = Varint32::encode(n).len(); - assert_eq!(len, Varint32::length_of(n)); - } - } } From 381f36a32207e66d555be52f734b4d1582925d53 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 3 Aug 2023 18:06:34 +0200 Subject: [PATCH 593/735] Rename Purge -> Prune --- .../src/core/engine_state/execution_effect.rs | 2 +- execution_engine/src/core/engine_state/mod.rs | 4 +-- execution_engine/src/core/engine_state/op.rs | 6 ++-- .../src/core/runtime/auction_internal.rs | 2 +- .../src/core/runtime_context/mod.rs | 6 ++-- .../src/core/tracking_copy/mod.rs | 6 ++-- execution_engine/src/shared/transform.rs | 32 +++++++++---------- .../src/storage/global_state/in_memory.rs | 2 +- .../src/storage/global_state/lmdb.rs | 6 ++-- .../src/storage/global_state/mod.rs | 4 +-- .../src/storage/global_state/scratch.rs | 4 +-- .../src/test/system_contracts/auction/bids.rs | 2 +- types/src/execution_result.rs | 14 ++++---- 13 files changed, 45 insertions(+), 45 deletions(-) diff --git a/execution_engine/src/core/engine_state/execution_effect.rs b/execution_engine/src/core/engine_state/execution_effect.rs index a157435f75..372d7edf3b 100644 --- a/execution_engine/src/core/engine_state/execution_effect.rs +++ b/execution_engine/src/core/engine_state/execution_effect.rs @@ -31,7 +31,7 @@ impl From for ExecutionEffect { | Transform::AddUInt256(_) | Transform::AddUInt512(_) | Transform::AddKeys(_) => ops.insert_add(key, Op::Add), - Transform::Purge => ops.insert_add(key, Op::Purge), + Transform::Prune => ops.insert_add(key, Op::Prune), }; transforms.insert_add(key, transform); } diff --git a/execution_engine/src/core/engine_state/mod.rs b/execution_engine/src/core/engine_state/mod.rs index c3137d5646..a2429e9adf 100644 --- a/execution_engine/src/core/engine_state/mod.rs +++ b/execution_engine/src/core/engine_state/mod.rs @@ -509,7 +509,7 @@ where // Post-migration clean up for withdraw_key in withdraw_keys { - tracking_copy.borrow_mut().purge(withdraw_key); + tracking_copy.borrow_mut().prune(withdraw_key); } } @@ -605,7 +605,7 @@ where match self .state - .purge_keys(correlation_id, state_root_hash, keys_to_delete) + .prune_keys(correlation_id, state_root_hash, keys_to_delete) { Ok(DeleteResult::Deleted(post_state_hash)) => { Ok(PruneResult::Success { post_state_hash }) diff --git a/execution_engine/src/core/engine_state/op.rs b/execution_engine/src/core/engine_state/op.rs index 2fb8c2cd4b..7b3df6cfd2 100644 --- a/execution_engine/src/core/engine_state/op.rs +++ b/execution_engine/src/core/engine_state/op.rs @@ -14,8 +14,8 @@ pub enum Op { Write, /// Add a value into a `Key`. Add, - /// Purge a value under a `Key`. - Purge, + /// Prune a value under a `Key`. + Prune, /// No operation. NoOp, } @@ -59,7 +59,7 @@ impl From<&Op> for casper_types::OpKind { Op::Write => casper_types::OpKind::Write, Op::Add => casper_types::OpKind::Add, Op::NoOp => casper_types::OpKind::NoOp, - Op::Purge => casper_types::OpKind::Delete, + Op::Prune => casper_types::OpKind::Delete, } } } diff --git a/execution_engine/src/core/runtime/auction_internal.rs b/execution_engine/src/core/runtime/auction_internal.rs index 76f5f269f3..4d38950b81 100644 --- a/execution_engine/src/core/runtime/auction_internal.rs +++ b/execution_engine/src/core/runtime/auction_internal.rs @@ -100,7 +100,7 @@ where ) -> Result<(), Error> { let unbond_key = Key::Unbond(account_hash); if unbonding_purses.is_empty() { - self.context.purge_gs_unsafe(unbond_key); + self.context.prune_gs_unsafe(unbond_key); Ok(()) } else { self.context diff --git a/execution_engine/src/core/runtime_context/mod.rs b/execution_engine/src/core/runtime_context/mod.rs index 589977e3b2..4997d835f8 100644 --- a/execution_engine/src/core/runtime_context/mod.rs +++ b/execution_engine/src/core/runtime_context/mod.rs @@ -924,15 +924,15 @@ where Ok(()) } - /// PUrges a key from the global state. + /// Prune a key from the global state. /// /// Use with caution - there is no validation done as the key is assumed to be validated /// already. - pub(crate) fn purge_gs_unsafe(&mut self, key: K) + pub(crate) fn prune_gs_unsafe(&mut self, key: K) where K: Into, { - self.tracking_copy.borrow_mut().purge(key.into()); + self.tracking_copy.borrow_mut().prune(key.into()); } /// Writes data to a global state and charges for bytes stored. diff --git a/execution_engine/src/core/tracking_copy/mod.rs b/execution_engine/src/core/tracking_copy/mod.rs index 02653e5e63..3cd3e8ae3c 100644 --- a/execution_engine/src/core/tracking_copy/mod.rs +++ b/execution_engine/src/core/tracking_copy/mod.rs @@ -353,10 +353,10 @@ impl> TrackingCopy { self.journal.push((normalized_key, Transform::Write(value))); } - /// Purges a `key`. - pub(crate) fn purge(&mut self, key: Key) { + /// Prunes a `key`. + pub(crate) fn prune(&mut self, key: Key) { let normalized_key = key.normalize(); - self.journal.push((normalized_key, Transform::Purge)); + self.journal.push((normalized_key, Transform::Prune)); } /// Ok(None) represents missing key to which we want to "add" some value. diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index ff9db415cb..d9af3f47f0 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -86,8 +86,8 @@ pub enum Transform { /// /// This transform assumes that the existing stored value is either an Account or a Contract. AddKeys(NamedKeys), - /// Purges a key. - Purge, + /// Prunes a key. + Prune, /// Represents the case where applying a transform would cause an error. #[data_size(skip)] Failure(Error), @@ -236,8 +236,8 @@ impl Transform { Err(StoredValueTypeMismatch::new(expected, found).into()) } }, - Transform::Purge => { - // Delete does not produce new values, it just consumes a stored value that it + Transform::Prune => { + // Prune does not produce new values, it just consumes a stored value that it // receives. Ok(None) } @@ -284,13 +284,13 @@ impl Add for Transform { (a @ Transform::Failure(_), _) => a, (_, b @ Transform::Failure(_)) => b, (_, b @ Transform::Write(_)) => b, - (_, Transform::Purge) => Transform::Purge, - (Transform::Purge, b) => b, + (_, Transform::Prune) => Transform::Prune, + (Transform::Prune, b) => b, (Transform::Write(v), b) => { // second transform changes value being written match b.apply(v) { Ok(Some(new_value)) => Transform::Write(new_value), - Ok(None) => Transform::Purge, + Ok(None) => Transform::Prune, Err(error) => Transform::Failure(error), } } @@ -401,7 +401,7 @@ impl From<&Transform> for casper_types::Transform { .collect(), ), Transform::Failure(error) => casper_types::Transform::Failure(error.to_string()), - Transform::Purge => casper_types::Transform::Purge, + Transform::Prune => casper_types::Transform::Prune, } } } @@ -432,7 +432,7 @@ pub mod gens { buf.copy_from_slice(&u); Transform::AddUInt512(buf.into()) }), - Just(Transform::Purge) + Just(Transform::Prune) ] } } @@ -907,7 +907,7 @@ mod tests { fn delete_should_produce_correct_transform() { { // delete + write == write - let lhs = Transform::Purge; + let lhs = Transform::Prune; let rhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); let new_transform = lhs + rhs.clone(); @@ -917,21 +917,21 @@ mod tests { { // delete + identity == delete (delete modifies the global state, identity does not // modify, so we need to preserve delete) - let new_transform = Transform::Purge + Transform::Identity; - assert_eq!(new_transform, Transform::Purge); + let new_transform = Transform::Prune + Transform::Identity; + assert_eq!(new_transform, Transform::Prune); } { // delete + failure == failure let failure = Transform::Failure(Error::Serialization(bytesrepr::Error::Formatting)); - let new_transform = Transform::Purge + failure.clone(); + let new_transform = Transform::Prune + failure.clone(); assert_eq!(new_transform, failure); } { // write + delete == delete let lhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); - let rhs = Transform::Purge; + let rhs = Transform::Prune; let new_transform = lhs + rhs.clone(); assert_eq!(new_transform, rhs); @@ -940,7 +940,7 @@ mod tests { { // add + delete == delete for lhs in add_transforms(123) { - let rhs = Transform::Purge; + let rhs = Transform::Prune; let new_transform = lhs + rhs.clone(); assert_eq!(new_transform, rhs); } @@ -949,7 +949,7 @@ mod tests { { // delete + add == add for rhs in add_transforms(123) { - let lhs = Transform::Purge; + let lhs = Transform::Prune; let new_transform = lhs + rhs.clone(); assert_eq!(new_transform, rhs); } diff --git a/execution_engine/src/storage/global_state/in_memory.rs b/execution_engine/src/storage/global_state/in_memory.rs index a54046ab28..1f31f95e17 100644 --- a/execution_engine/src/storage/global_state/in_memory.rs +++ b/execution_engine/src/storage/global_state/in_memory.rs @@ -284,7 +284,7 @@ impl StateProvider for InMemoryGlobalState { Ok(missing_descendants) } - fn purge_keys( + fn prune_keys( &self, correlation_id: CorrelationId, mut root: Digest, diff --git a/execution_engine/src/storage/global_state/lmdb.rs b/execution_engine/src/storage/global_state/lmdb.rs index 35f0434e41..a27a85e7bd 100644 --- a/execution_engine/src/storage/global_state/lmdb.rs +++ b/execution_engine/src/storage/global_state/lmdb.rs @@ -293,8 +293,8 @@ impl StateProvider for LmdbGlobalState { Ok(missing_hashes) } - /// Purge keys. - fn purge_keys( + /// Prune keys. + fn prune_keys( &self, correlation_id: CorrelationId, mut state_root_hash: Digest, @@ -494,7 +494,7 @@ mod tests { tmp.insert(*key, Transform::Write(value.to_owned())); } for TestPair { key, .. } in &tail { - tmp.insert(*key, Transform::Purge); + tmp.insert(*key, Transform::Prune); } tmp diff --git a/execution_engine/src/storage/global_state/mod.rs b/execution_engine/src/storage/global_state/mod.rs index c2faca6ab0..39897691a4 100644 --- a/execution_engine/src/storage/global_state/mod.rs +++ b/execution_engine/src/storage/global_state/mod.rs @@ -123,8 +123,8 @@ pub trait StateProvider { trie_raw: &[u8], ) -> Result, Self::Error>; - /// Purge keys from the global state. - fn purge_keys( + /// Prune keys from the global state. + fn prune_keys( &self, correlation_id: CorrelationId, root: Digest, diff --git a/execution_engine/src/storage/global_state/scratch.rs b/execution_engine/src/storage/global_state/scratch.rs index e7c7b13bb5..757bce073e 100644 --- a/execution_engine/src/storage/global_state/scratch.rs +++ b/execution_engine/src/storage/global_state/scratch.rs @@ -331,7 +331,7 @@ impl StateProvider for ScratchGlobalState { Ok(missing_descendants) } - fn purge_keys( + fn prune_keys( &self, correlation_id: CorrelationId, mut state_root_hash: Digest, @@ -560,7 +560,7 @@ mod tests { tmp.insert(*key, Transform::Write(value.to_owned())); } for TestPair { key, .. } in &tail { - tmp.insert(*key, Transform::Purge); + tmp.insert(*key, Transform::Prune); } tmp diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index a6892c94bc..b4f99957fd 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -3498,7 +3498,7 @@ fn should_continue_auction_state_from_release_1_4_x() { .transforms .iter() .filter_map(|(key, transform)| { - if transform == &Transform::Purge { + if transform == &Transform::Prune { Some(key) } else { None diff --git a/types/src/execution_result.rs b/types/src/execution_result.rs index 2e77cd17b1..5ec668dda5 100644 --- a/types/src/execution_result.rs +++ b/types/src/execution_result.rs @@ -560,8 +560,8 @@ pub enum Transform { Failure(String), /// Writes the given Unbonding to global state. WriteUnbonding(Vec), - /// Purges a key. - Purge, + /// Prunes a key. + Prune, } impl Transform { @@ -586,7 +586,7 @@ impl Transform { Transform::AddKeys(_) => TransformTag::AddKeys, Transform::Failure(_) => TransformTag::Failure, Transform::WriteUnbonding(_) => TransformTag::WriteUnbonding, - Transform::Purge => TransformTag::Delete, + Transform::Prune => TransformTag::Delete, } } } @@ -647,7 +647,7 @@ impl ToBytes for Transform { Transform::WriteUnbonding(value) => { buffer.extend(value.to_bytes()?); } - Transform::Purge => {} + Transform::Prune => {} } Ok(buffer) } @@ -673,7 +673,7 @@ impl ToBytes for Transform { Transform::WriteBid(value) => value.serialized_length(), Transform::WriteWithdraw(value) => value.serialized_length(), Transform::WriteUnbonding(value) => value.serialized_length(), - Transform::Purge => 0, + Transform::Prune => 0, }; U8_SERIALIZED_LENGTH + body_len } @@ -749,7 +749,7 @@ impl FromBytes for Transform { as FromBytes>::from_bytes(remainder)?; Ok((Transform::WriteUnbonding(unbonding_purses), remainder)) } - TransformTag::Delete => Ok((Transform::Purge, remainder)), + TransformTag::Delete => Ok((Transform::Prune, remainder)), } } } @@ -780,7 +780,7 @@ impl Distribution for Standard { Transform::AddKeys(named_keys) } 12 => Transform::Failure(rng.gen::().to_string()), - 13 => Transform::Purge, + 13 => Transform::Prune, _ => unreachable!(), } } From 31ef2c9d9ba536b0cbb38454ec8d36441c2a96e1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 3 Aug 2023 18:07:46 +0200 Subject: [PATCH 594/735] Rename continued --- execution_engine/src/shared/transform.rs | 14 +++++++------- types/src/execution_result.rs | 6 +++--- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index d9af3f47f0..938a86f84f 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -906,7 +906,7 @@ mod tests { #[test] fn delete_should_produce_correct_transform() { { - // delete + write == write + // prune + write == write let lhs = Transform::Prune; let rhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); @@ -915,21 +915,21 @@ mod tests { } { - // delete + identity == delete (delete modifies the global state, identity does not - // modify, so we need to preserve delete) + // prune + identity == prune (prune modifies the global state, identity does not + // modify, so we need to preserve prune) let new_transform = Transform::Prune + Transform::Identity; assert_eq!(new_transform, Transform::Prune); } { - // delete + failure == failure + // prune + failure == failure let failure = Transform::Failure(Error::Serialization(bytesrepr::Error::Formatting)); let new_transform = Transform::Prune + failure.clone(); assert_eq!(new_transform, failure); } { - // write + delete == delete + // write + prune == prune let lhs = Transform::Write(StoredValue::CLValue(CLValue::unit())); let rhs = Transform::Prune; @@ -938,7 +938,7 @@ mod tests { } { - // add + delete == delete + // add + prune == prune for lhs in add_transforms(123) { let rhs = Transform::Prune; let new_transform = lhs + rhs.clone(); @@ -947,7 +947,7 @@ mod tests { } { - // delete + add == add + // prune + add == add for rhs in add_transforms(123) { let lhs = Transform::Prune; let new_transform = lhs + rhs.clone(); diff --git a/types/src/execution_result.rs b/types/src/execution_result.rs index 5ec668dda5..87788fc94c 100644 --- a/types/src/execution_result.rs +++ b/types/src/execution_result.rs @@ -96,7 +96,7 @@ enum TransformTag { AddKeys = 16, Failure = 17, WriteUnbonding = 18, - Delete = 19, + Prune = 19, } impl TryFrom for TransformTag { @@ -586,7 +586,7 @@ impl Transform { Transform::AddKeys(_) => TransformTag::AddKeys, Transform::Failure(_) => TransformTag::Failure, Transform::WriteUnbonding(_) => TransformTag::WriteUnbonding, - Transform::Prune => TransformTag::Delete, + Transform::Prune => TransformTag::Prune, } } } @@ -749,7 +749,7 @@ impl FromBytes for Transform { as FromBytes>::from_bytes(remainder)?; Ok((Transform::WriteUnbonding(unbonding_purses), remainder)) } - TransformTag::Delete => Ok((Transform::Prune, remainder)), + TransformTag::Prune => Ok((Transform::Prune, remainder)), } } } From 0b243b88097aadd69ae6b127e138cced5887b958 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bart=C5=82omiej=20Kami=C5=84ski?= Date: Tue, 18 Jul 2023 07:31:40 -0400 Subject: [PATCH 595/735] Downgrade a log message --- node/src/reactor/main_reactor/validate.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/node/src/reactor/main_reactor/validate.rs b/node/src/reactor/main_reactor/validate.rs index 322d03816c..f15aad8045 100644 --- a/node/src/reactor/main_reactor/validate.rs +++ b/node/src/reactor/main_reactor/validate.rs @@ -140,9 +140,9 @@ impl MainReactor { Some(weights) => weights, }; if !highest_era_weights.contains_key(self.consensus.public_key()) { - info!( - "{}: highest_era_weights does not contain signing_public_key", - self.state + debug!( + era = highest_switch_block_header.era_id().successor().value(), + "{}: this is not a validating node in this era", self.state ); return Ok(None); } From a731eb59b2e2de1d498a29d6a05e339f829f7906 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Tue, 18 Jul 2023 15:27:27 +0000 Subject: [PATCH 596/735] nctl: test scenario for sync to genesis after restart when sync in era 0 Before 1.5.0 there wasn't an immediate switch block committed at genesis. Because historical sync relies on sync leaps to get the validators for a particular era, we encounter a special case when syncing the blocks of era 0 if they were created before 1.5.0 because sync leap will not be able to include a switch block that has the validators for era 0. Since the auction delay is at least 1, we can generally rely on the fact that the validator set for era 1 and era 0 are the same. Add a test to check if a node that has synced back to some block in era 0 can continue syncing to genesis after it was restarted (and lost its validator matrix). Signed-off-by: Alexandru Sardan --- ci/nctl_upgrade.sh | 20 ++ ci/nightly-test.sh | 1 + utils/nctl/activate | 3 +- .../scenarios-upgrades/upgrade_scenario_14.sh | 302 ++++++++++++++++++ utils/nctl/sh/utils/blocking.sh | 4 +- 5 files changed, 327 insertions(+), 3 deletions(-) create mode 100644 utils/nctl/sh/scenarios-upgrades/upgrade_scenario_14.sh diff --git a/ci/nctl_upgrade.sh b/ci/nctl_upgrade.sh index 2f08b88948..d524e4fbbf 100755 --- a/ci/nctl_upgrade.sh +++ b/ci/nctl_upgrade.sh @@ -218,6 +218,26 @@ function start_upgrade_scenario_13() { nctl-exec-upgrade-scenario-13 } +function start_upgrade_scenario_14() { + log "... Setting up custom starting version" + local PATH_TO_STAGE + + PATH_TO_STAGE="$(get_path_to_stage 1)" + + log "... downloading remote for 1.4.13" + nctl-stage-set-remotes "1.4.13" + + log "... tearing down old stages" + nctl-stage-teardown + + log "... creating new stage" + dev_branch_settings "$PATH_TO_STAGE" "1.4.13" + build_from_settings_file + + log "... Starting Upgrade Scenario 14" + nctl-exec-upgrade-scenario-14 +} + # ---------------------------------------------------------------- # ENTRY POINT # ---------------------------------------------------------------- diff --git a/ci/nightly-test.sh b/ci/nightly-test.sh index 9ad96c5b1b..61f9ea672b 100755 --- a/ci/nightly-test.sh +++ b/ci/nightly-test.sh @@ -85,6 +85,7 @@ function run_nightly_upgrade_test() { bash -c "./ci/nctl_upgrade.sh test_id=11" bash -c "./ci/nctl_upgrade.sh test_id=12" bash -c "./ci/nctl_upgrade.sh test_id=13" + bash -c "./ci/nctl_upgrade.sh test_id=14" } function run_soundness_test() { diff --git a/utils/nctl/activate b/utils/nctl/activate index bd2b3a93b2..73b59bae6b 100644 --- a/utils/nctl/activate +++ b/utils/nctl/activate @@ -165,4 +165,5 @@ alias nctl-exec-upgrade-scenario-9='source $NCTL/sh/scenarios-upgrades/upgrade_s alias nctl-exec-upgrade-scenario-10='source $NCTL/sh/scenarios-upgrades/upgrade_scenario_10.sh' alias nctl-exec-upgrade-scenario-11='source $NCTL/sh/scenarios-upgrades/upgrade_scenario_11.sh' alias nctl-exec-upgrade-scenario-12='source $NCTL/sh/scenarios-upgrades/upgrade_scenario_12.sh' -alias nctl-exec-upgrade-scenario-13='source $NCTL/sh/scenarios-upgrades/upgrade_scenario_13.sh' \ No newline at end of file +alias nctl-exec-upgrade-scenario-13='source $NCTL/sh/scenarios-upgrades/upgrade_scenario_13.sh' +alias nctl-exec-upgrade-scenario-14='source $NCTL/sh/scenarios-upgrades/upgrade_scenario_14.sh' \ No newline at end of file diff --git a/utils/nctl/sh/scenarios-upgrades/upgrade_scenario_14.sh b/utils/nctl/sh/scenarios-upgrades/upgrade_scenario_14.sh new file mode 100644 index 0000000000..2d1ae9438a --- /dev/null +++ b/utils/nctl/sh/scenarios-upgrades/upgrade_scenario_14.sh @@ -0,0 +1,302 @@ +#!/usr/bin/env bash +# ----------------------------------------------------------------- +# Synopsis. +# ----------------------------------------------------------------- + +# Before 1.5.0 there wasn't an immediate switch block committed at +# genesis. Because historical sync relies on sync leaps to get the +# validators for a particular era, we encounter a special case +# when syncing the blocks of era 0 if they were created before 1.5.0 +# because sync leap will not be able to include a switch block that +# has the validators for era 0. +# Since the auction delay is at least 1, we can generally rely on +# the fact that the validator set for era 1 and era 0 are the same. +# +# Test if a node that has synced back to some block in era 0 can +# continue syncing to genesis after it was restarted (and lost its +# validator matrix). + +# Step 01: Start network from pre-built stage. +# Step 02: Await era-id >= 2. +# Step 03: Stage nodes 1-5 and upgrade. +# Step 04: Assert upgraded nodes 1-5. +# Step 05: Assert nodes 1-5 didn't stall. +# Step 06: Await 1 era. +# Step 07: Start node 6. +# Step 08: Wait for node 6 to sync back to a block in era 0. +# Step 09: Stop and restart node 6. +# Step 10: Wait for node 6 to sync to genesis. +# Step 11: Start node 7. +# Step 12: Wait for node 7 to sync back to the first block in era 1. +# Step 13: Stop and restart node 7. +# Step 14: Wait for node 7 to sync to genesis. +# Step 15: Terminate. + +# ---------------------------------------------------------------- +# Imports. +# ---------------------------------------------------------------- + +source "$NCTL/sh/utils/main.sh" +source "$NCTL/sh/views/utils.sh" +source "$NCTL/sh/node/svc_$NCTL_DAEMON_TYPE".sh +source "$NCTL"/sh/scenarios/common/itst.sh + +# ---------------------------------------------------------------- +# MAIN +# ---------------------------------------------------------------- + +# Main entry point. +function _main() +{ + local STAGE_ID=${1} + local INITIAL_PROTOCOL_VERSION + local ACTIVATION_POINT + local UPGRADE_HASH + + if [ ! -d "$(get_path_to_stage "$STAGE_ID")" ]; then + log "ERROR :: stage $STAGE_ID has not been built - cannot run scenario" + exit 1 + fi + + _step_01 "$STAGE_ID" + _step_02 + + # Set initial protocol version for use later. + INITIAL_PROTOCOL_VERSION=$(get_node_protocol_version 1) + # Establish consistent activation point for use later. + ACTIVATION_POINT="$(get_chain_era)" + # Get minimum era height + MIN_ERA_HEIGHT=$(($(grep "minimum_era_height" "$(get_path_to_net)"/chainspec/chainspec.toml | cut -d'=' -f2))) + + _step_03 "$STAGE_ID" "$ACTIVATION_POINT" + _step_04 "$INITIAL_PROTOCOL_VERSION" + _step_05 + _step_06 + _step_07 + _step_08 + _step_09 + _step_10 + _step_11 + _step_12 + _step_13 + _step_14 + _step_15 +} + +# Step 01: Start network from pre-built stage. +function _step_01() +{ + local STAGE_ID=${1} + + log_step_upgrades 0 "Begin upgrade_scenario_14" + log_step_upgrades 1 "starting network from stage ($STAGE_ID)" + + source "$NCTL/sh/assets/setup_from_stage.sh" \ + stage="$STAGE_ID" \ + log "... Starting 5 validators" + source "$NCTL/sh/node/start.sh" node=all +} + +# Step 02: Await era-id >= 2. +function _step_02() +{ + log_step_upgrades 2 "awaiting until era 2" + await_until_era_n 2 +} + +# Step 03: Stage nodes 1-6 and upgrade. +function _step_03() +{ + local STAGE_ID=${1} + local ACTIVATION_POINT=${2} + + log_step_upgrades 3 "upgrading 1 thru 5 from stage ($STAGE_ID)" + + log "... setting upgrade assets" + + for i in $(seq 1 7); do + log "... staging upgrade on validator node-$i" + source "$NCTL/sh/assets/upgrade_from_stage_single_node.sh" stage="$STAGE_ID" verbose=false node="$i" era="$ACTIVATION_POINT" + echo "" + done + + log "... awaiting 2 eras + 1 block" + await_n_eras '2' 'true' '5.0' '2' + await_n_blocks '1' 'true' '2' +} + +# Step 04: Assert upgraded nodes 1-5. +function _step_04() +{ + local PROTOCOL_VERSION_INITIAL=${1} + local NX_PROTOCOL_VERSION + local NODE_ID + + log_step_upgrades 4 "Asserting nodes 1 thru 5 upgraded" + + # Assert nodes are running same protocol version. + for NODE_ID in $(seq 1 5) + do + NX_PROTOCOL_VERSION=$(get_node_protocol_version "$NODE_ID") + if [ "$NX_PROTOCOL_VERSION" = "$PROTOCOL_VERSION_INITIAL" ]; then + log "ERROR :: upgrade failure :: nodes are not all running same protocol version" + log "... Node $NODE_ID: $NX_PROTOCOL_VERSION = $PROTOCOL_VERSION_INITIAL" + exit 1 + else + log "Node $NODE_ID upgraded successfully: $PROTOCOL_VERSION_INITIAL -> $NX_PROTOCOL_VERSION" + fi + done +} + +# Step 05: Assert nodes 1-5 didn't stall. +function _step_05() +{ + local HEIGHT_1 + local HEIGHT_2 + local NODE_ID + + log_step_upgrades 5 "Asserting nodes 1 thru 5 didn't stall" + + HEIGHT_1=$(get_chain_height 2) + await_n_blocks '5' 'true' '2' + for NODE_ID in $(seq 1 5) + do + HEIGHT_2=$(get_chain_height "$NODE_ID") + if [ "$HEIGHT_2" != "N/A" ] && [ "$HEIGHT_2" -le "$HEIGHT_1" ]; then + log "ERROR :: upgrade failure :: node-$NODE_ID has stalled" + log " ... node-$NODE_ID : $HEIGHT_2 <= $HEIGHT_1" + exit 1 + else + log " ... no stall detected on node-$NODE_ID: $HEIGHT_2 > $HEIGHT_1 [expected]" + fi + done +} + +# Step 06: Await 1 era. +function _step_06() +{ + log_step_upgrades 6 "awaiting 1 era" + await_n_eras '1' 'true' '5.0' '2' +} + +function start_node_with_latest_trusted_hash() +{ + local NODE_ID=${1} + + local LFB_HASH=$(render_last_finalized_block_hash "1" | cut -f2 -d= | cut -f2 -d ' ') + do_start_node "$NODE_ID" "$LFB_HASH" +} + +function wait_historical_sync_to_height() +{ + local NODE_ID=${1} + local HEIGHT=${2} + + local LOW=$(get_node_lowest_available_block "$NODE_ID") + local HIGH=$(get_node_highest_available_block "$NODE_ID") + + # First wait for node to start syncing + while [ -z $HIGH ] || [ -z $LOW ] || [[ $HIGH -eq $LOW ]] || [[ $HIGH -eq 0 ]] || [[ $LOW -eq 0 ]]; do + sleep 0.2 + LOW=$(get_node_lowest_available_block "$NODE_ID") + HIGH=$(get_node_highest_available_block "$NODE_ID") + done + + while [ -z $LOW ] || [[ $LOW -gt $HEIGHT ]]; do + sleep 0.2 + LOW=$(get_node_lowest_available_block "$NODE_ID") + done +} + +# Step 07: Start node 6. +function _step_07() +{ + log_step_upgrades 7 "starting node 6" + start_node_with_latest_trusted_hash "6" +} + +# Step 08: Wait for node 6 to sync back to a block in era 0. +function _step_08() +{ + log_step_upgrades 8 "Wait for node 6 to sync back to a block in era 0" + + wait_historical_sync_to_height "6" "$(($MIN_ERA_HEIGHT-1))" +} + +# Step 09: Stop and restart node 6. +function _step_09() +{ + log_step_upgrades 9 "Stopping and re-starting node 6" + + do_stop_node "6" + sleep 2 + start_node_with_latest_trusted_hash "6" +} + +# Step 10: Wait for node 6 to sync to genesis. +function _step_10() +{ + log_step_upgrades 10 "Waiting for node 6 to sync to genesis" + await_node_historical_sync_to_genesis '6' '60' +} + +# Step 11: Start node 7. +function _step_11() +{ + log_step_upgrades 11 "starting node 7" + start_node_with_latest_trusted_hash "7" +} + +# Step 12: Wait for node 7 to sync back to the first block in era 1. +function _step_12() +{ + log_step_upgrades 12 "Wait for node 7 to sync back to the first block in era 1" + + wait_historical_sync_to_height "7" "$(($MIN_ERA_HEIGHT+1))" +} + +# Step 13: Stop and restart node 7. +function _step_13() +{ + log_step_upgrades 13 "Stopping and re-starting node 7" + + do_stop_node "7" + sleep 2 + start_node_with_latest_trusted_hash "7" +} + +# Step 14: Wait for node 7 to sync to genesis. +function _step_14() +{ + log_step_upgrades 14 "Waiting for node 7 to sync to genesis" + await_node_historical_sync_to_genesis '7' '60' +} + +# Step 15: Terminate. +function _step_15() +{ + log_step_upgrades 15 "upgrade_scenario_14 successful - tidying up" + + source "$NCTL/sh/assets/teardown.sh" + + log_break +} + +# ---------------------------------------------------------------- +# ENTRY POINT +# ---------------------------------------------------------------- + +unset _STAGE_ID +unset INITIAL_PROTOCOL_VERSION + +for ARGUMENT in "$@" +do + KEY=$(echo "$ARGUMENT" | cut -f1 -d=) + VALUE=$(echo "$ARGUMENT" | cut -f2 -d=) + case "$KEY" in + stage) _STAGE_ID=${VALUE} ;; + *) + esac +done + +_main "${_STAGE_ID:-1}" diff --git a/utils/nctl/sh/utils/blocking.sh b/utils/nctl/sh/utils/blocking.sh index 609131215e..3fecda3095 100644 --- a/utils/nctl/sh/utils/blocking.sh +++ b/utils/nctl/sh/utils/blocking.sh @@ -175,13 +175,13 @@ function await_node_historical_sync_to_genesis() { local WAIT_TIME_SEC=0 local LOWEST=$(get_node_lowest_available_block "$NODE_ID") local HIGHEST=$(get_node_highest_available_block "$NODE_ID") - while [ -z $HIGHEST ] || [ -z $LOWEST ] || [ $LOWEST -ne 0 ] || [ $HIGHEST -eq 0 ]; do + while [ -z $HIGHEST ] || [ -z $LOWEST ] || [[ $LOWEST -ne 0 ]] || [[ $HIGHEST -eq 0 ]]; do log "node $NODE_ID lowest available block: $LOWEST, highest available block: $HIGHEST" if [ $WAIT_TIME_SEC -gt $SYNC_TIMEOUT_SEC ]; then log "ERROR: node 1 failed to do historical sync in ${SYNC_TIMEOUT_SEC} seconds" exit 1 fi - WAIT_TIME_SEC=$((WAIT_TIME_SEC + 1)) + WAIT_TIME_SEC=$((WAIT_TIME_SEC + 5)) sleep 5.0 LOWEST=$(get_node_lowest_available_block "$NODE_ID") HIGHEST="$(get_node_highest_available_block "$NODE_ID")" From 2913014d7a5a20dcf67954cbd8c41cbee6e25f39 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 19 Jul 2023 10:06:58 +0000 Subject: [PATCH 597/735] tests/integration: check if nodes can sync back with 1 block eras Signed-off-by: Alexandru Sardan --- node/src/components/storage.rs | 2 +- node/src/reactor/main_reactor/tests.rs | 145 ++++++++++++++++++++++++- node/src/testing/filter_reactor.rs | 4 + node/src/types/validator_matrix.rs | 5 + 4 files changed, 151 insertions(+), 5 deletions(-) diff --git a/node/src/components/storage.rs b/node/src/components/storage.rs index 1839cfc6cf..eae28677cf 100644 --- a/node/src/components/storage.rs +++ b/node/src/components/storage.rs @@ -2455,7 +2455,7 @@ impl Storage { } } - fn get_available_block_range(&self) -> AvailableBlockRange { + pub(crate) fn get_available_block_range(&self) -> AvailableBlockRange { match self.completed_blocks.highest_sequence() { Some(&seq) => seq.into(), None => AvailableBlockRange::RANGE_0_0, diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index 6fc9bec9b6..3aaa88ed9d 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -44,8 +44,8 @@ use crate::{ }, types::{ chainspec::{AccountConfig, AccountsConfig, ValidatorConfig}, - ActivationPoint, BlockHeader, BlockPayload, Chainspec, ChainspecRawBytes, Deploy, ExitCode, - NodeRng, + ActivationPoint, BlockHash, BlockHeader, BlockPayload, Chainspec, ChainspecRawBytes, + Deploy, ExitCode, NodeId, NodeRng, }, utils::{extract_metric_names, External, Loadable, Source, RESOURCES_PATH}, WithDir, @@ -57,6 +57,7 @@ struct TestChain { storages: Vec, chainspec: Arc, chainspec_raw_bytes: Arc, + first_node_port: u16, } type Nodes = testing::network::Nodes>; @@ -139,11 +140,14 @@ impl TestChain { chainspec.core_config.auction_delay = 1; chainspec.core_config.unbonding_delay = 3; + let first_node_port = testing::unused_port_on_localhost(); + TestChain { keys, storages: Vec::new(), chainspec: Arc::new(chainspec), chainspec_raw_bytes: Arc::new(chainspec_raw_bytes), + first_node_port, } } @@ -151,6 +155,18 @@ impl TestChain { Arc::get_mut(&mut self.chainspec).unwrap() } + fn chainspec(&self) -> Arc { + self.chainspec.clone() + } + + fn chainspec_raw_bytes(&self) -> Arc { + self.chainspec_raw_bytes.clone() + } + + fn first_node_port(&self) -> u16 { + self.first_node_port + } + /// Creates an initializer/validator configuration for the `idx`th validator. fn create_node_config(&mut self, idx: usize, first_node_port: u16) -> Config { // Set the network configuration. @@ -186,11 +202,10 @@ impl TestChain { let root = RESOURCES_PATH.join("local"); let mut network: TestingNetwork> = TestingNetwork::new(); - let first_node_port = testing::unused_port_on_localhost(); for idx in 0..self.keys.len() { info!("creating node {}", idx); - let cfg = self.create_node_config(idx, first_node_port); + let cfg = self.create_node_config(idx, self.first_node_port); network .add_node_with_config_and_chainspec( WithDir::new(root.clone(), cfg), @@ -231,6 +246,21 @@ fn has_completed_era(era_id: EraId) -> impl Fn(&Nodes) -> bool { } } +fn lowest_available_block_height_on_node(height: u64, node_id: NodeId) -> impl Fn(&Nodes) -> bool { + move |nodes: &Nodes| { + nodes.get(&node_id).map_or(true, |runner| { + let storage = runner.main_reactor().storage(); + + let available_block_range = storage.get_available_block_range(); + if available_block_range.low() == 0 && available_block_range.high() == 0 { + false + } else { + available_block_range.low() <= height + } + }) + } +} + fn is_ping(event: &MainEvent) -> bool { if let MainEvent::ConsensusMessageIncoming(ConsensusMessageIncoming { message, .. }) = event { if let ConsensusMessage::Protocol { ref payload, .. } = **message { @@ -347,6 +377,113 @@ async fn run_network() { .await; } +fn highest_finalized_block_hash( + runner: &Runner>>, +) -> Option { + let storage = runner.main_reactor().storage(); + + if let Some(highest_block) = storage.read_highest_complete_block().unwrap_or(None) { + return Some(*highest_block.hash()); + } else { + None + } +} + +#[tokio::test] +async fn historical_sync_with_era_height_1() { + testing::init_logging(); + + let mut rng = crate::new_rng(); + + // Instantiate a new chain with a fixed size. + const NETWORK_SIZE: usize = 5; + let mut chain = TestChain::new(&mut rng, NETWORK_SIZE, None); + chain.chainspec_mut().core_config.minimum_era_height = 1; + + let mut net = chain + .create_initialized_network(&mut rng) + .await + .expect("network initialization failed"); + + // Wait for all nodes to reach era 3. + net.settle_on( + &mut rng, + is_in_era(EraId::from(3)), + Duration::from_secs(1000), + ) + .await; + + let (_, first_node) = net + .nodes() + .iter() + .next() + .expect("Expected non-empty network"); + + // Get a trusted hash + let lfb = highest_finalized_block_hash(first_node) + .expect("Could not determine the latest finalized block for this network"); + + // Create a joiner node + let mut config = Config { + network: network::Config::default_local_net(chain.first_node_port()), + gossip: gossiper::Config::new_with_small_timeouts(), + ..Default::default() + }; + let joiner_key = Arc::new(SecretKey::random(&mut rng)); + let (storage_cfg, temp_dir) = storage::Config::default_for_tests(); + { + let secret_key_path = temp_dir.path().join("secret_key"); + joiner_key + .to_file(secret_key_path.clone()) + .expect("could not write secret key"); + config.consensus.secret_key_path = External::Path(secret_key_path); + } + config.storage = storage_cfg; + config.node.trusted_hash = Some(lfb); + config.node.sync_to_genesis = true; + let root = RESOURCES_PATH.join("local"); + let cfg = WithDir::new(root.clone(), config); + + let (joiner_id, _) = net + .add_node_with_config_and_chainspec( + cfg, + chain.chainspec(), + chain.chainspec_raw_bytes(), + &mut rng, + ) + .await + .expect("could not add node to reactor"); + + // Wait for joiner node to sync back to the block from era 1 + net.settle_on( + &mut rng, + lowest_available_block_height_on_node(1, joiner_id), + Duration::from_secs(1000), + ) + .await; + + // Remove the weights for era 0 and era 1 from the validator matrix + let runner = net + .nodes_mut() + .get_mut(&joiner_id) + .expect("Could not find runner for node {joiner_id}"); + let reactor = runner.reactor_mut().inner_mut().inner_mut(); + reactor + .validator_matrix + .purge_era_validators(&EraId::from(0)); + reactor + .validator_matrix + .purge_era_validators(&EraId::from(1)); + + // Continue syncing and check if the joiner node reaches era 0 + net.settle_on( + &mut rng, + lowest_available_block_height_on_node(0, joiner_id), + Duration::from_secs(1000), + ) + .await; +} + #[tokio::test] async fn run_equivocator_network() { testing::init_logging(); diff --git a/node/src/testing/filter_reactor.rs b/node/src/testing/filter_reactor.rs index f28d86e44b..c9a068cac9 100644 --- a/node/src/testing/filter_reactor.rs +++ b/node/src/testing/filter_reactor.rs @@ -40,6 +40,10 @@ impl FilterReactor { pub(crate) fn inner(&self) -> &R { &self.reactor } + + pub(crate) fn inner_mut(&mut self) -> &mut R { + &mut self.reactor + } } impl Reactor for FilterReactor { diff --git a/node/src/types/validator_matrix.rs b/node/src/types/validator_matrix.rs index d4cb23c59e..58c139a4ed 100644 --- a/node/src/types/validator_matrix.rs +++ b/node/src/types/validator_matrix.rs @@ -287,6 +287,11 @@ impl ValidatorMatrix { pub(crate) fn eras(&self) -> Vec { self.read_inner().keys().copied().collect_vec() } + + #[cfg(test)] + pub(crate) fn purge_era_validators(&mut self, era_id: &EraId) { + self.inner.write().unwrap().remove(era_id); + } } impl Debug for ValidatorMatrix { From 43876cb3aa86527a407eb1092b441dabf23ace90 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Wed, 19 Jul 2023 15:53:57 +0000 Subject: [PATCH 598/735] tests/integration: rename predicate for checking lowest available block Rename `lowest_available_block_height_on_node` to `node_has_lowest_available_block_at_or_below_height` in order to be consistent with the other predicates. Signed-off-by: Alexandru Sardan --- node/src/reactor/main_reactor/tests.rs | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index 3aaa88ed9d..e6bcd852c5 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -246,7 +246,12 @@ fn has_completed_era(era_id: EraId) -> impl Fn(&Nodes) -> bool { } } -fn lowest_available_block_height_on_node(height: u64, node_id: NodeId) -> impl Fn(&Nodes) -> bool { +/// Given a block height and a node id, returns a predicate to check if the lowest available block +/// for the specified node is at or below the specified height. +fn node_has_lowest_available_block_at_or_below_height( + height: u64, + node_id: NodeId, +) -> impl Fn(&Nodes) -> bool { move |nodes: &Nodes| { nodes.get(&node_id).map_or(true, |runner| { let storage = runner.main_reactor().storage(); @@ -457,7 +462,7 @@ async fn historical_sync_with_era_height_1() { // Wait for joiner node to sync back to the block from era 1 net.settle_on( &mut rng, - lowest_available_block_height_on_node(1, joiner_id), + node_has_lowest_available_block_at_or_below_height(1, joiner_id), Duration::from_secs(1000), ) .await; @@ -478,7 +483,7 @@ async fn historical_sync_with_era_height_1() { // Continue syncing and check if the joiner node reaches era 0 net.settle_on( &mut rng, - lowest_available_block_height_on_node(0, joiner_id), + node_has_lowest_available_block_at_or_below_height(0, joiner_id), Duration::from_secs(1000), ) .await; From 26119b4b352c684848c27a2b094cefa1703b8676 Mon Sep 17 00:00:00 2001 From: Alexandru Sardan Date: Thu, 3 Aug 2023 14:17:39 +0000 Subject: [PATCH 599/735] tests/integration/main_reactor: rename helper function Rename `highest_finalized_block_hash` to `highest_complete_block_hash` in main reactor integration tests. Signed-off-by: Alexandru Sardan --- node/src/reactor/main_reactor/tests.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index e6bcd852c5..3386b1f8be 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -382,7 +382,7 @@ async fn run_network() { .await; } -fn highest_finalized_block_hash( +fn highest_complete_block_hash( runner: &Runner>>, ) -> Option { let storage = runner.main_reactor().storage(); @@ -425,8 +425,8 @@ async fn historical_sync_with_era_height_1() { .expect("Expected non-empty network"); // Get a trusted hash - let lfb = highest_finalized_block_hash(first_node) - .expect("Could not determine the latest finalized block for this network"); + let lfb = highest_complete_block_hash(first_node) + .expect("Could not determine the latest complete block for this network"); // Create a joiner node let mut config = Config { From 664d830be23cef1fd67b7d6a8db2c2ef2fa52b62 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 4 Aug 2023 13:37:33 +0200 Subject: [PATCH 600/735] Unify `run` and `run_with_cors` --- json_rpc/src/lib.rs | 66 ++++++++----------- node/src/components/rpc_server/http_server.rs | 9 +-- node/src/components/rpc_server/rpcs.rs | 51 +------------- .../rpc_server/speculative_exec_server.rs | 9 +-- 4 files changed, 40 insertions(+), 95 deletions(-) diff --git a/json_rpc/src/lib.rs b/json_rpc/src/lib.rs index 366d6c6fae..1fe60d1f66 100644 --- a/json_rpc/src/lib.rs +++ b/json_rpc/src/lib.rs @@ -96,6 +96,7 @@ pub use response::Response; const JSON_RPC_VERSION: &str = "2.0"; /// Specifies the CORS origin +#[derive(Debug)] pub enum CorsOrigin { /// Any (*) origin is allowed. Any, @@ -118,60 +119,47 @@ pub enum CorsOrigin { /// If `allow_unknown_fields` is `false`, requests with unknown fields will cause the server to /// respond with an error. /// -/// For further details, see the docs for the [`filters`] functions. -pub fn route>( - path: P, - max_body_bytes: u32, - handlers: RequestHandlers, - allow_unknown_fields: bool, -) -> BoxedFilter<(impl Reply,)> { - filters::base_filter(path, max_body_bytes) - .and(filters::main_filter(handlers, allow_unknown_fields)) - .recover(filters::handle_rejection) - .boxed() -} - -/// Constructs a set of warp filters suitable for use in a JSON-RPC server. +/// If `cors_header` is `Some`, it is used to add a [a warp CORS +/// filter](https://docs.rs/warp/latest/warp/filters/cors/index.html) which /// -/// `path` specifies the exact HTTP path for JSON-RPC requests, e.g. "rpc" will match requests on -/// exactly "/rpc", and not "/rpc/other". -/// -/// `max_body_bytes` sets an upper limit for the number of bytes in the HTTP request body. For -/// further details, see -/// [`warp::filters::body::content_length_limit`](https://docs.rs/warp/latest/warp/filters/body/fn.content_length_limit.html). -/// -/// `handlers` is the map of functions to which incoming requests will be dispatched. These are -/// keyed by the JSON-RPC request's "method". -/// -/// If `allow_unknown_fields` is `false`, requests with unknown fields will cause the server to -/// respond with an error. -/// -/// Note that this is a convenience function combining the lower-level functions in [`filters`] -/// along with [a warp CORS filter](https://docs.rs/warp/latest/warp/filters/cors/index.html) which /// * allows any origin or specified origin /// * allows "content-type" as a header /// * allows the method "POST" /// /// For further details, see the docs for the [`filters`] functions. -pub fn route_with_cors>( +pub fn route>( path: P, max_body_bytes: u32, handlers: RequestHandlers, allow_unknown_fields: bool, - cors_header: &CorsOrigin, -) -> BoxedFilter<(impl Reply,)> { - filters::base_filter(path, max_body_bytes) + cors_header: Option<&CorsOrigin>, +) -> BoxedFilter<(Box,)> { + let base = filters::base_filter(path, max_body_bytes) .and(filters::main_filter(handlers, allow_unknown_fields)) - .recover(filters::handle_rejection) - .with(match cors_header { + .recover(filters::handle_rejection); + + if let Some(cors_origin) = cors_header { + let cors = match cors_origin { CorsOrigin::Any => warp::cors() .allow_any_origin() .allow_header(CONTENT_TYPE) - .allow_method(Method::POST), + .allow_method(Method::POST) + .build(), CorsOrigin::Specified(origin) => warp::cors() .allow_origin(origin.as_str()) .allow_header(CONTENT_TYPE) - .allow_method(Method::POST), - }) - .boxed() + .allow_method(Method::POST) + .build(), + }; + base.with(cors).map(box_reply).boxed() + } else { + base.map(box_reply).boxed() + } +} + +/// Boxes a reply of a warp filter. +#[inline(always)] +fn box_reply(reply: T) -> Box { + let boxed: Box = Box::new(reply); + boxed } diff --git a/node/src/components/rpc_server/http_server.rs b/node/src/components/rpc_server/http_server.rs index bf9ecc28c4..c7b28e56ac 100644 --- a/node/src/components/rpc_server/http_server.rs +++ b/node/src/components/rpc_server/http_server.rs @@ -67,30 +67,31 @@ pub(super) async fn run( max_body_bytes, RPC_API_PATH, RPC_API_SERVER_NAME, + None, ) .await } "*" => { - super::rpcs::run_with_cors( + super::rpcs::run( builder, handlers, qps_limit, max_body_bytes, RPC_API_PATH, RPC_API_SERVER_NAME, - CorsOrigin::Any, + Some(CorsOrigin::Any), ) .await } _ => { - super::rpcs::run_with_cors( + super::rpcs::run( builder, handlers, qps_limit, max_body_bytes, RPC_API_PATH, RPC_API_SERVER_NAME, - CorsOrigin::Specified(cors_origin), + Some(CorsOrigin::Specified(cors_origin)), ) .await } diff --git a/node/src/components/rpc_server/rpcs.rs b/node/src/components/rpc_server/rpcs.rs index 53ced596ed..442e44cc09 100644 --- a/node/src/components/rpc_server/rpcs.rs +++ b/node/src/components/rpc_server/rpcs.rs @@ -29,10 +29,7 @@ use casper_json_rpc::{ use casper_types::ProtocolVersion; use super::{ReactorEventT, RpcRequest}; -use crate::{ - effect::EffectBuilder, - utils::{Fuse, ObservableFuse}, -}; +use crate::{effect::EffectBuilder, utils::ObservableFuse}; pub use common::ErrorData; use docs::DocExample; pub use error_code::ErrorCode; @@ -256,49 +253,6 @@ pub(super) trait RpcWithOptionalParams { ) -> Result; } -/// Start JSON RPC server with CORS enabled in a background. -pub(super) async fn run_with_cors( - builder: Builder, - handlers: RequestHandlers, - qps_limit: u64, - max_body_bytes: u32, - api_path: &'static str, - server_name: &'static str, - cors_header: CorsOrigin, -) { - let make_svc = hyper::service::make_service_fn(move |_| { - let service_routes = casper_json_rpc::route_with_cors( - api_path, - max_body_bytes, - handlers.clone(), - ALLOW_UNKNOWN_FIELDS_IN_JSON_RPC_REQUEST, - &cors_header, - ); - - // Supports content negotiation for gzip responses. This is an interim fix until - // https://github.com/seanmonstar/warp/pull/513 moves forward. - let service_routes_gzip = warp::header::exact(ACCEPT_ENCODING.as_str(), "gzip") - .and(service_routes.clone()) - .with(warp::compression::gzip()); - - let service = warp::service(service_routes_gzip.or(service_routes)); - async move { Ok::<_, Infallible>(service.clone()) } - }); - - let make_svc = ServiceBuilder::new() - .rate_limit(qps_limit, Duration::from_secs(1)) - .service(make_svc); - - let server = builder.serve(make_svc); - info!(address = %server.local_addr(), "started {} server", server_name); - - let shutdown_fuse = ObservableFuse::new(); - let server_with_shutdown = server.with_graceful_shutdown(shutdown_fuse.wait_owned()); - - let _ = tokio::spawn(server_with_shutdown).await; - info!("{} server shut down", server_name); -} - /// Start JSON RPC server in a background. pub(super) async fn run( builder: Builder, @@ -307,6 +261,7 @@ pub(super) async fn run( max_body_bytes: u32, api_path: &'static str, server_name: &'static str, + cors_header: Option, ) { let make_svc = hyper::service::make_service_fn(move |_| { let service_routes = casper_json_rpc::route( @@ -314,6 +269,7 @@ pub(super) async fn run( max_body_bytes, handlers.clone(), ALLOW_UNKNOWN_FIELDS_IN_JSON_RPC_REQUEST, + cors_header.as_ref(), ); // Supports content negotiation for gzip responses. This is an interim fix until @@ -337,7 +293,6 @@ pub(super) async fn run( let server_with_shutdown = server.with_graceful_shutdown(shutdown_fuse.clone().wait_owned()); let _ = tokio::spawn(server_with_shutdown).await; - shutdown_fuse.set(); info!("{} server shut down", server_name); } diff --git a/node/src/components/rpc_server/speculative_exec_server.rs b/node/src/components/rpc_server/speculative_exec_server.rs index 002f8761ac..6a6dcbdbdd 100644 --- a/node/src/components/rpc_server/speculative_exec_server.rs +++ b/node/src/components/rpc_server/speculative_exec_server.rs @@ -36,30 +36,31 @@ pub(super) async fn run( max_body_bytes, SPECULATIVE_EXEC_API_PATH, SPECULATIVE_EXEC_SERVER_NAME, + None, ) .await; } "*" => { - super::rpcs::run_with_cors( + super::rpcs::run( builder, handlers, qps_limit, max_body_bytes, SPECULATIVE_EXEC_API_PATH, SPECULATIVE_EXEC_SERVER_NAME, - CorsOrigin::Any, + Some(CorsOrigin::Any), ) .await } _ => { - super::rpcs::run_with_cors( + super::rpcs::run( builder, handlers, qps_limit, max_body_bytes, SPECULATIVE_EXEC_API_PATH, SPECULATIVE_EXEC_SERVER_NAME, - CorsOrigin::Specified(cors_origin), + Some(CorsOrigin::Specified(cors_origin)), ) .await } From 865c6db6d2e6abfee47e8a7f5c8afac01dd1142b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 4 Aug 2023 16:42:19 +0200 Subject: [PATCH 601/735] Fix clippy issues. --- execution_engine/src/core/engine_state/op.rs | 9 ++------- execution_engine/src/shared/transform.rs | 9 ++------- .../src/storage/trie_store/operations/tests/mod.rs | 5 ++--- .../tests/src/test/regression/gh_3710.rs | 4 ++-- .../tests/src/test/system_contracts/auction/bids.rs | 3 +-- hashing/src/chunk_with_proof.rs | 3 +-- types/src/api_error.rs | 8 ++++---- types/src/era_id.rs | 2 +- utils/global-state-update-gen/src/generic.rs | 2 +- 9 files changed, 16 insertions(+), 29 deletions(-) diff --git a/execution_engine/src/core/engine_state/op.rs b/execution_engine/src/core/engine_state/op.rs index 7b3df6cfd2..98ea211dfa 100644 --- a/execution_engine/src/core/engine_state/op.rs +++ b/execution_engine/src/core/engine_state/op.rs @@ -6,7 +6,7 @@ use std::{ }; /// Representation of a single operation during execution. -#[derive(PartialEq, Eq, Debug, Clone, Copy)] +#[derive(PartialEq, Eq, Debug, Clone, Copy, Default)] pub enum Op { /// Read value from a `Key`. Read, @@ -17,6 +17,7 @@ pub enum Op { /// Prune a value under a `Key`. Prune, /// No operation. + #[default] NoOp, } @@ -46,12 +47,6 @@ impl Display for Op { } } -impl Default for Op { - fn default() -> Self { - Op::NoOp - } -} - impl From<&Op> for casper_types::OpKind { fn from(op: &Op) -> Self { match op { diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index 938a86f84f..3ebdc9b8a6 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -59,11 +59,12 @@ impl From for Error { /// Note that all arithmetic variants of [`Transform`] are commutative which means that a given /// collection of them can be executed in any order to produce the same end result. #[allow(clippy::large_enum_variant)] -#[derive(PartialEq, Eq, Debug, Clone, DataSize)] +#[derive(PartialEq, Eq, Debug, Clone, DataSize, Default)] pub enum Transform { /// An identity transformation that does not modify a value in the global state. /// /// Created as part of a read from the global state. + #[default] Identity, /// Writes a new value in the global state. Write(StoredValue), @@ -345,12 +346,6 @@ impl Display for Transform { } } -impl Default for Transform { - fn default() -> Self { - Transform::Identity - } -} - impl From<&Transform> for casper_types::Transform { fn from(transform: &Transform) -> Self { match transform { diff --git a/execution_engine/src/storage/trie_store/operations/tests/mod.rs b/execution_engine/src/storage/trie_store/operations/tests/mod.rs index 6283ce3ec8..21a3fd46b1 100644 --- a/execution_engine/src/storage/trie_store/operations/tests/mod.rs +++ b/execution_engine/src/storage/trie_store/operations/tests/mod.rs @@ -649,7 +649,7 @@ where Ok(ret) } -fn check_keys( +fn check_keys( correlation_id: CorrelationId, txn: &T, store: &S, @@ -662,7 +662,6 @@ where T: Readable, S: TrieStore, S::Error: From, - E: From + From, { let expected = { let mut tmp = leaves @@ -725,7 +724,7 @@ where .all(bool::not) ); - assert!(check_keys::<_, _, _, _, E>( + assert!(check_keys::<_, _, _, _>( correlation_id, &txn, store, diff --git a/execution_engine_testing/tests/src/test/regression/gh_3710.rs b/execution_engine_testing/tests/src/test/regression/gh_3710.rs index 379e09f714..75bb7fb515 100644 --- a/execution_engine_testing/tests/src/test/regression/gh_3710.rs +++ b/execution_engine_testing/tests/src/test/regression/gh_3710.rs @@ -385,11 +385,11 @@ mod fixture { let rewards: Vec<&U512> = era_infos .iter() .flat_map(|era_info| era_info.seigniorage_allocations()) - .filter_map(|seigniorage| match seigniorage { + .map(|seigniorage| match seigniorage { SeigniorageAllocation::Validator { validator_public_key, amount, - } if validator_public_key == &*DEFAULT_ACCOUNT_PUBLIC_KEY => Some(amount), + } if validator_public_key == &*DEFAULT_ACCOUNT_PUBLIC_KEY => amount, SeigniorageAllocation::Validator { .. } => panic!("Unexpected validator"), SeigniorageAllocation::Delegator { .. } => panic!("No delegators"), }) diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index b4f99957fd..a670b006fe 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -1885,8 +1885,7 @@ fn should_handle_evictions() { let era_validators: EraValidators = builder.get_era_validators(); let validators = era_validators .iter() - .rev() - .next() + .next_back() .map(|(_era_id, validators)| validators) .expect("should have validators"); validators.keys().cloned().collect::>() diff --git a/hashing/src/chunk_with_proof.rs b/hashing/src/chunk_with_proof.rs index d93951b914..445954baa6 100644 --- a/hashing/src/chunk_with_proof.rs +++ b/hashing/src/chunk_with_proof.rs @@ -140,7 +140,7 @@ mod tests { fn prepare_bytes(length: usize) -> Vec { let mut rng = rand::thread_rng(); - (0..length).into_iter().map(|_| rng.gen()).collect() + (0..length).map(|_| rng.gen()).collect() } fn random_chunk_with_proof() -> ChunkWithProof { @@ -206,7 +206,6 @@ mod tests { .unwrap(); assert!((0..number_of_chunks) - .into_iter() .map(|chunk_index| { ChunkWithProof::new(data.as_slice(), chunk_index).unwrap() }) .all(|chunk_with_proof| chunk_with_proof.verify().is_ok())); } diff --git a/types/src/api_error.rs b/types/src/api_error.rs index 985be9be3b..eb1da1a1e8 100644 --- a/types/src/api_error.rs +++ b/types/src/api_error.rs @@ -655,22 +655,22 @@ impl Debug for ApiError { ApiError::AuctionError(value) => write!( f, "ApiError::AuctionError({:?})", - auction::Error::try_from(*value).map_err(|_err| fmt::Error::default())? + auction::Error::try_from(*value).map_err(|_err| fmt::Error)? )?, ApiError::ContractHeader(value) => write!( f, "ApiError::ContractHeader({:?})", - contracts::Error::try_from(*value).map_err(|_err| fmt::Error::default())? + contracts::Error::try_from(*value).map_err(|_err| fmt::Error)? )?, ApiError::Mint(value) => write!( f, "ApiError::Mint({:?})", - mint::Error::try_from(*value).map_err(|_err| fmt::Error::default())? + mint::Error::try_from(*value).map_err(|_err| fmt::Error)? )?, ApiError::HandlePayment(value) => write!( f, "ApiError::HandlePayment({:?})", - handle_payment::Error::try_from(*value).map_err(|_err| fmt::Error::default())? + handle_payment::Error::try_from(*value).map_err(|_err| fmt::Error)? )?, ApiError::User(value) => write!(f, "ApiError::User({})", value)?, } diff --git a/types/src/era_id.rs b/types/src/era_id.rs index 71e8390a92..9fe3d98c3c 100644 --- a/types/src/era_id.rs +++ b/types/src/era_id.rs @@ -220,7 +220,7 @@ mod tests { assert_eq!(window.len(), auction_delay as usize + 1); assert_eq!(window.get(0), Some(¤t_era)); assert_eq!( - window.iter().rev().next(), + window.iter().next_back(), Some(&(current_era + auction_delay)) ); } diff --git a/utils/global-state-update-gen/src/generic.rs b/utils/global-state-update-gen/src/generic.rs index 318e262b3f..d6bbe8d1dd 100644 --- a/utils/global-state-update-gen/src/generic.rs +++ b/utils/global-state-update-gen/src/generic.rs @@ -280,7 +280,7 @@ pub fn add_and_remove_bids( validators_diff.removed.clone() }; - for (pub_key, seigniorage_recipient) in new_snapshot.values().rev().next().unwrap() { + for (pub_key, seigniorage_recipient) in new_snapshot.values().rev().next_back().unwrap() { create_or_update_bid(state, pub_key, seigniorage_recipient, slash); } From 6c60117a5e5990fc49a5b835ac7e6b8aade567c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 4 Aug 2023 17:32:55 +0200 Subject: [PATCH 602/735] Fix more clippy issues --- Cargo.lock | 1 + juliet/Cargo.toml | 1 + juliet/src/header.rs | 9 ++++++- .../src/components/block_accumulator/tests.rs | 5 +--- .../deploy_acquisition/tests.rs | 1 - .../execution_results_acquisition/tests.rs | 26 ++++++------------- .../global_state_synchronizer/tests.rs | 4 +-- .../block_synchronizer/peer_list/tests.rs | 5 +--- .../components/block_synchronizer/tests.rs | 4 +-- .../block_synchronizer/tests/test_utils.rs | 2 -- .../trie_accumulator/tests.rs | 5 +--- .../highway_core/active_validator.rs | 1 + .../highway_core/finality_detector.rs | 1 + .../consensus/highway_core/highway.rs | 2 ++ .../consensus/highway_core/state.rs | 1 + .../consensus/highway_core/state/tallies.rs | 2 ++ .../highway_core/synchronizer/tests.rs | 2 ++ .../components/consensus/protocols/common.rs | 1 + .../components/consensus/protocols/highway.rs | 4 +-- .../src/components/consensus/protocols/zug.rs | 1 + .../components/consensus/utils/validators.rs | 1 + .../components/diagnostics_port/command.rs | 9 ++----- .../components/diagnostics_port/stop_at.rs | 9 ++----- node/src/components/network/symmetry.rs | 9 ++----- node/src/components/storage.rs | 5 ++-- node/src/logging.rs | 9 ++----- node/src/reactor/main_reactor/catch_up.rs | 10 +++---- node/src/reactor/queue_kind.rs | 11 +++----- node/src/types/validator_matrix.rs | 9 +------ node/src/utils/external.rs | 9 ++----- node/src/utils/fmt_limit.rs | 2 +- 31 files changed, 60 insertions(+), 101 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 77ec1ac2f1..e5dc524f7b 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3196,6 +3196,7 @@ dependencies = [ "derivative", "derive_more 1.0.0-beta.2", "futures", + "hex_fmt", "proptest", "proptest-attr-macro", "proptest-derive", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index b45dbf39d1..34ad168408 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -11,6 +11,7 @@ bimap = "0.6.3" bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" futures = "0.3.28" +hex_fmt = "0.3.0" thiserror = "1.0.40" tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } tracing = { version = "0.1.37", optional = true } diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 0858b843df..918e93b198 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -2,9 +2,10 @@ //! //! This module is typically only used by the protocol implementation (see //! [`protocol`](crate::protocol)), but may be of interested to those writing low level tooling. -use std::fmt::Debug; +use std::fmt::{Debug, Display}; use bytemuck::{Pod, Zeroable}; +use hex_fmt::HexFmt; use thiserror::Error; use crate::{ChannelId, Id}; @@ -17,6 +18,12 @@ use crate::{ChannelId, Id}; #[repr(transparent)] pub struct Header([u8; Header::SIZE]); +impl Display for Header { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + write!(f, "{}", HexFmt(&self.0)) + } +} + impl Debug for Header { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { if self.is_error() { diff --git a/node/src/components/block_accumulator/tests.rs b/node/src/components/block_accumulator/tests.rs index 568b081977..2630d3ab07 100644 --- a/node/src/components/block_accumulator/tests.rs +++ b/node/src/components/block_accumulator/tests.rs @@ -618,10 +618,7 @@ fn acceptor_should_store_block() { let mut acceptor = BlockAcceptor::new(*block.hash(), vec![]); // Create 4 pairs of keys so we can later create 4 signatures. - let keys: Vec<(SecretKey, PublicKey)> = (0..4) - .into_iter() - .map(|_| generate_ed25519_keypair()) - .collect(); + let keys: Vec<(SecretKey, PublicKey)> = (0..4).map(|_| generate_ed25519_keypair()).collect(); // Register the keys into the era validator weights, front loaded on the // first 2 with 80% weight. let era_validator_weights = EraValidatorWeights::new( diff --git a/node/src/components/block_synchronizer/deploy_acquisition/tests.rs b/node/src/components/block_synchronizer/deploy_acquisition/tests.rs index a14665517c..af76e86125 100644 --- a/node/src/components/block_synchronizer/deploy_acquisition/tests.rs +++ b/node/src/components/block_synchronizer/deploy_acquisition/tests.rs @@ -11,7 +11,6 @@ use super::*; fn gen_test_deploys(rng: &mut TestRng) -> BTreeMap { let num_deploys = rng.gen_range(2..15); (0..num_deploys) - .into_iter() .map(|_| { let deploy = Deploy::random(rng); (*deploy.hash(), deploy) diff --git a/node/src/components/block_synchronizer/execution_results_acquisition/tests.rs b/node/src/components/block_synchronizer/execution_results_acquisition/tests.rs index b205d5df24..729ddd30e8 100644 --- a/node/src/components/block_synchronizer/execution_results_acquisition/tests.rs +++ b/node/src/components/block_synchronizer/execution_results_acquisition/tests.rs @@ -15,10 +15,8 @@ fn execution_results_chunks_apply_correctly() { let block = Block::random(&mut rng); // Create chunkable execution results - let exec_results: Vec = (0..NUM_TEST_EXECUTION_RESULTS) - .into_iter() - .map(|_| rng.gen()) - .collect(); + let exec_results: Vec = + (0..NUM_TEST_EXECUTION_RESULTS).map(|_| rng.gen()).collect(); let test_chunks = chunks_with_proof_from_data(&exec_results.to_bytes().unwrap()); assert!(test_chunks.len() >= 3); @@ -166,10 +164,8 @@ fn cant_apply_chunk_from_different_exec_results_or_invalid_checksum() { let block = Block::random(&mut rng); // Create valid execution results - let valid_exec_results: Vec = (0..NUM_TEST_EXECUTION_RESULTS) - .into_iter() - .map(|_| rng.gen()) - .collect(); + let valid_exec_results: Vec = + (0..NUM_TEST_EXECUTION_RESULTS).map(|_| rng.gen()).collect(); let valid_test_chunks = chunks_with_proof_from_data(&valid_exec_results.to_bytes().unwrap()); assert!(valid_test_chunks.len() >= 3); @@ -351,10 +347,8 @@ fn acquisition_pending_state_has_correct_transitions() { ); // Acquisition can transition from `Pending` to `Acquiring` if a single chunk is applied - let exec_results: Vec = (0..NUM_TEST_EXECUTION_RESULTS) - .into_iter() - .map(|_| rng.gen()) - .collect(); + let exec_results: Vec = + (0..NUM_TEST_EXECUTION_RESULTS).map(|_| rng.gen()).collect(); let test_chunks = chunks_with_proof_from_data(&exec_results.to_bytes().unwrap()); assert!(test_chunks.len() >= 3); @@ -362,7 +356,6 @@ fn acquisition_pending_state_has_correct_transitions() { let exec_result = BlockExecutionResultsOrChunkId::new(*block.hash()) .response(ValueOrChunk::ChunkWithProof(first_chunk.clone())); let deploy_hashes: Vec = (0..NUM_TEST_EXECUTION_RESULTS) - .into_iter() .map(|index| DeployHash::new(Digest::hash(index.to_bytes().unwrap()))) .collect(); assert_matches!( @@ -380,10 +373,8 @@ fn acquisition_acquiring_state_has_correct_transitions() { let block = Block::random(&mut rng); // Generate valid execution results that are chunkable - let exec_results: Vec = (0..NUM_TEST_EXECUTION_RESULTS) - .into_iter() - .map(|_| rng.gen()) - .collect(); + let exec_results: Vec = + (0..NUM_TEST_EXECUTION_RESULTS).map(|_| rng.gen()).collect(); let test_chunks = chunks_with_proof_from_data(&exec_results.to_bytes().unwrap()); assert!(test_chunks.len() >= 3); @@ -417,7 +408,6 @@ fn acquisition_acquiring_state_has_correct_transitions() { let exec_result = BlockExecutionResultsOrChunkId::new(*block.hash()) .response(ValueOrChunk::ChunkWithProof(last_chunk.clone())); let deploy_hashes: Vec = (0..NUM_TEST_EXECUTION_RESULTS) - .into_iter() .map(|index| DeployHash::new(Digest::hash(index.to_bytes().unwrap()))) .collect(); acquisition = assert_matches!( diff --git a/node/src/components/block_synchronizer/global_state_synchronizer/tests.rs b/node/src/components/block_synchronizer/global_state_synchronizer/tests.rs index c83116ade1..0010bdeb32 100644 --- a/node/src/components/block_synchronizer/global_state_synchronizer/tests.rs +++ b/node/src/components/block_synchronizer/global_state_synchronizer/tests.rs @@ -78,7 +78,7 @@ impl MockReactor { } fn random_test_trie(rng: &mut TestRng) -> TrieRaw { - let data: Vec = (0..64).into_iter().map(|_| rng.gen()).collect(); + let data: Vec = (0..64).map(|_| rng.gen()).collect(); TrieRaw::new(Bytes::from(data)) } @@ -210,7 +210,6 @@ async fn sync_global_state_request_starts_maximum_trie_fetches() { // root node would have some children that we haven't yet downloaded Err(engine_state::Error::MissingTrieNodeChildren( (0u8..255) - .into_iter() // TODO: generate random hashes when `rng.gen` works .map(|i| Digest::hash([i; 32])) .collect(), @@ -497,7 +496,6 @@ async fn missing_trie_node_children_triggers_fetch() { // We generate more than the parallel_fetch_limit. let num_missing_trie_nodes = rng.gen_range(12..20); let missing_tries: Vec = (0..num_missing_trie_nodes) - .into_iter() .map(|_| random_test_trie(&mut rng)) .collect(); let missing_trie_nodes_hashes: Vec = missing_tries diff --git a/node/src/components/block_synchronizer/peer_list/tests.rs b/node/src/components/block_synchronizer/peer_list/tests.rs index 7302738e20..24035aa7a5 100644 --- a/node/src/components/block_synchronizer/peer_list/tests.rs +++ b/node/src/components/block_synchronizer/peer_list/tests.rs @@ -19,10 +19,7 @@ impl PeerList { // Create multiple random peers fn random_peers(rng: &mut TestRng, num_random_peers: usize) -> HashSet { - (0..num_random_peers) - .into_iter() - .map(|_| NodeId::random(rng)) - .collect() + (0..num_random_peers).map(|_| NodeId::random(rng)).collect() } #[test] diff --git a/node/src/components/block_synchronizer/tests.rs b/node/src/components/block_synchronizer/tests.rs index 256145cb0b..b167651f6b 100644 --- a/node/src/components/block_synchronizer/tests.rs +++ b/node/src/components/block_synchronizer/tests.rs @@ -92,7 +92,7 @@ impl MockReactor { ) -> Vec { let mut events = Vec::new(); for effect in effects { - tokio::spawn(async move { effect.await }); + tokio::spawn(effect); let event = self.crank().await; events.push(event); } @@ -644,7 +644,7 @@ async fn should_not_stall_after_registering_new_era_validator_weights() { // bleed off the event q, checking the expected event kind for effect in effects { - tokio::spawn(async move { effect.await }); + tokio::spawn(effect); let event = mock_reactor.crank().await; match event { MockReactorEvent::SyncLeapFetcherRequest(_) => (), diff --git a/node/src/components/block_synchronizer/tests/test_utils.rs b/node/src/components/block_synchronizer/tests/test_utils.rs index 2079fb0276..27f71d21c3 100644 --- a/node/src/components/block_synchronizer/tests/test_utils.rs +++ b/node/src/components/block_synchronizer/tests/test_utils.rs @@ -7,7 +7,6 @@ use rand::Rng; pub(crate) fn chunks_with_proof_from_data(data: &[u8]) -> BTreeMap { (0..data.chunks(ChunkWithProof::CHUNK_SIZE_BYTES).count()) - .into_iter() .map(|index| { ( index as u64, @@ -22,7 +21,6 @@ pub(crate) fn test_chunks_with_proof( ) -> (Vec, Vec, Vec) { let mut rng = rand::thread_rng(); let data: Vec = (0..ChunkWithProof::CHUNK_SIZE_BYTES * num_chunks as usize) - .into_iter() .map(|_| rng.gen()) .collect(); diff --git a/node/src/components/block_synchronizer/trie_accumulator/tests.rs b/node/src/components/block_synchronizer/trie_accumulator/tests.rs index 48e2cdbb16..4ef710948b 100644 --- a/node/src/components/block_synchronizer/trie_accumulator/tests.rs +++ b/node/src/components/block_synchronizer/trie_accumulator/tests.rs @@ -131,10 +131,7 @@ async fn failed_fetch_retriggers_download_with_different_peer() { let (_, chunk_ids, _) = test_chunks_with_proof(1); // Create multiple peers - let peers: Vec = (0..2) - .into_iter() - .map(|_| NodeId::random(&mut rng)) - .collect(); + let peers: Vec = (0..2).map(|_| NodeId::random(&mut rng)).collect(); let chunks = PartialChunks { peers: peers.clone(), diff --git a/node/src/components/consensus/highway_core/active_validator.rs b/node/src/components/consensus/highway_core/active_validator.rs index 588b928b5c..ebddb64986 100644 --- a/node/src/components/consensus/highway_core/active_validator.rs +++ b/node/src/components/consensus/highway_core/active_validator.rs @@ -1,3 +1,4 @@ +#![allow(clippy::arithmetic_side_effects)] use std::{ fmt::{self, Debug}, fs::{self, File}, diff --git a/node/src/components/consensus/highway_core/finality_detector.rs b/node/src/components/consensus/highway_core/finality_detector.rs index 6e72b63472..717d669f97 100644 --- a/node/src/components/consensus/highway_core/finality_detector.rs +++ b/node/src/components/consensus/highway_core/finality_detector.rs @@ -1,3 +1,4 @@ +#![allow(clippy::arithmetic_side_effects)] mod horizon; mod rewards; diff --git a/node/src/components/consensus/highway_core/highway.rs b/node/src/components/consensus/highway_core/highway.rs index 75f77397c8..bb308da961 100644 --- a/node/src/components/consensus/highway_core/highway.rs +++ b/node/src/components/consensus/highway_core/highway.rs @@ -1,3 +1,5 @@ +#![allow(clippy::arithmetic_side_effects)] + mod vertex; pub(crate) use crate::components::consensus::highway_core::state::Params; diff --git a/node/src/components/consensus/highway_core/state.rs b/node/src/components/consensus/highway_core/state.rs index 7a54833bc0..3515bc2e0a 100644 --- a/node/src/components/consensus/highway_core/state.rs +++ b/node/src/components/consensus/highway_core/state.rs @@ -1,3 +1,4 @@ +#![allow(clippy::arithmetic_side_effects)] mod block; mod index_panorama; mod panorama; diff --git a/node/src/components/consensus/highway_core/state/tallies.rs b/node/src/components/consensus/highway_core/state/tallies.rs index 2c8aba60ca..732bf63454 100644 --- a/node/src/components/consensus/highway_core/state/tallies.rs +++ b/node/src/components/consensus/highway_core/state/tallies.rs @@ -1,3 +1,5 @@ +#![allow(clippy::arithmetic_side_effects)] + use std::{ collections::BTreeMap, iter::{self, Extend, FromIterator}, diff --git a/node/src/components/consensus/highway_core/synchronizer/tests.rs b/node/src/components/consensus/highway_core/synchronizer/tests.rs index d0f864fa01..0d99dbd764 100644 --- a/node/src/components/consensus/highway_core/synchronizer/tests.rs +++ b/node/src/components/consensus/highway_core/synchronizer/tests.rs @@ -1,3 +1,5 @@ +#![allow(clippy::arithmetic_side_effects)] + use std::collections::BTreeSet; use itertools::Itertools; diff --git a/node/src/components/consensus/protocols/common.rs b/node/src/components/consensus/protocols/common.rs index 4c8e597151..4924fb85c5 100644 --- a/node/src/components/consensus/protocols/common.rs +++ b/node/src/components/consensus/protocols/common.rs @@ -1,3 +1,4 @@ +#![allow(clippy::arithmetic_side_effects)] use itertools::Itertools; use num_rational::Ratio; use std::collections::{BTreeMap, HashSet}; diff --git a/node/src/components/consensus/protocols/highway.rs b/node/src/components/consensus/protocols/highway.rs index 1b60162fe0..4f02b714b1 100644 --- a/node/src/components/consensus/protocols/highway.rs +++ b/node/src/components/consensus/protocols/highway.rs @@ -1,3 +1,5 @@ +#![allow(clippy::arithmetic_side_effects)] + pub(crate) mod config; mod participation; mod round_success_meter; @@ -602,7 +604,6 @@ impl HighwayProtocol { unit_seq_number, } }) - .into_iter() .collect() } else { // We're ahead. @@ -642,7 +643,6 @@ impl HighwayProtocol { .wire_unit(unit, *self.highway.instance_id()) .map(|swu| HighwayMessage::NewVertex(Vertex::Unit(swu))) }) - .into_iter() .collect(), }, } diff --git a/node/src/components/consensus/protocols/zug.rs b/node/src/components/consensus/protocols/zug.rs index e10a1c0fd9..4b691fd6b8 100644 --- a/node/src/components/consensus/protocols/zug.rs +++ b/node/src/components/consensus/protocols/zug.rs @@ -1,3 +1,4 @@ +#![allow(clippy::arithmetic_side_effects)] //! # The Zug consensus protocol. //! //! This protocol requires that at most _f_ out of _n > 3 f_ validators (by weight) are faulty. It diff --git a/node/src/components/consensus/utils/validators.rs b/node/src/components/consensus/utils/validators.rs index 20debb0bdd..126de52ae8 100644 --- a/node/src/components/consensus/utils/validators.rs +++ b/node/src/components/consensus/utils/validators.rs @@ -1,3 +1,4 @@ +#![allow(clippy::arithmetic_side_effects)] use std::{ collections::HashMap, fmt, diff --git a/node/src/components/diagnostics_port/command.rs b/node/src/components/diagnostics_port/command.rs index 18e3477769..d7c48f59cb 100644 --- a/node/src/components/diagnostics_port/command.rs +++ b/node/src/components/diagnostics_port/command.rs @@ -23,11 +23,12 @@ pub(super) enum Error { } /// Output format information is sent back to the client it. -#[derive(Clone, Copy, Debug, Eq, PartialEq, Serialize)] +#[derive(Clone, Copy, Debug, Eq, PartialEq, Serialize, Default)] pub(super) enum OutputFormat { /// Human-readable interactive format. /// /// No string form, utilizes the `Display` implementation of types passed in. + #[default] Interactive, /// JSON, pretty-printed. Json, @@ -35,12 +36,6 @@ pub(super) enum OutputFormat { Bincode, } -impl Default for OutputFormat { - fn default() -> Self { - OutputFormat::Interactive - } -} - impl Display for OutputFormat { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { diff --git a/node/src/components/diagnostics_port/stop_at.rs b/node/src/components/diagnostics_port/stop_at.rs index b077f6e442..ac80142617 100644 --- a/node/src/components/diagnostics_port/stop_at.rs +++ b/node/src/components/diagnostics_port/stop_at.rs @@ -8,10 +8,11 @@ use datasize::DataSize; use serde::Serialize; /// A specification for a stopping point. -#[derive(Copy, Clone, DataSize, Debug, Eq, PartialEq, Serialize)] +#[derive(Copy, Clone, DataSize, Debug, Eq, PartialEq, Serialize, Default)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] pub(crate) enum StopAtSpec { /// Stop after completion of the current block. + #[default] NextBlock, /// Stop after the completion of the next switch block. EndOfCurrentEra, @@ -23,12 +24,6 @@ pub(crate) enum StopAtSpec { EraId(EraId), } -impl Default for StopAtSpec { - fn default() -> Self { - StopAtSpec::NextBlock - } -} - impl Display for StopAtSpec { fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { match self { diff --git a/node/src/components/network/symmetry.rs b/node/src/components/network/symmetry.rs index 9477bca6e7..37433fd24a 100644 --- a/node/src/components/network/symmetry.rs +++ b/node/src/components/network/symmetry.rs @@ -9,7 +9,7 @@ use datasize::DataSize; use tracing::{debug, warn}; /// Describes whether a connection is uni- or bi-directional. -#[derive(DataSize, Debug)] +#[derive(DataSize, Debug, Default)] pub(super) enum ConnectionSymmetry { /// We have only seen an incoming connection. IncomingOnly { @@ -29,15 +29,10 @@ pub(super) enum ConnectionSymmetry { peer_addrs: BTreeSet, }, /// The connection is invalid/missing and should be removed. + #[default] Gone, } -impl Default for ConnectionSymmetry { - fn default() -> Self { - ConnectionSymmetry::Gone - } -} - impl ConnectionSymmetry { /// A new incoming connection has been registered. /// diff --git a/node/src/components/storage.rs b/node/src/components/storage.rs index e7a4e7b306..d428fa0fb3 100644 --- a/node/src/components/storage.rs +++ b/node/src/components/storage.rs @@ -308,7 +308,7 @@ where event: Self::Event, ) -> Effects { let result = match event { - Event::StorageRequest(req) => self.handle_storage_request::(*req), + Event::StorageRequest(req) => self.handle_storage_request(*req), Event::NetRequestIncoming(ref incoming) => { match self.handle_net_request_incoming::(effect_builder, incoming) { Ok(effects) => Ok(effects), @@ -781,7 +781,7 @@ impl Storage { } /// Handles a storage request. - fn handle_storage_request( + fn handle_storage_request( &mut self, req: StorageRequest, ) -> Result, FatalStorageError> { @@ -1608,7 +1608,6 @@ impl Storage { .copied() .unwrap_or(EraId::new(0)); for era_id in (0..=last_era.value()) - .into_iter() .rev() .take(count as usize) .map(EraId::new) diff --git a/node/src/logging.rs b/node/src/logging.rs index df90d53551..43394a90e8 100644 --- a/node/src/logging.rs +++ b/node/src/logging.rs @@ -72,21 +72,16 @@ impl LoggingConfig { /// Logging output format. /// /// Defaults to "text"". -#[derive(DataSize, Debug, Deserialize, Serialize)] +#[derive(DataSize, Debug, Deserialize, Serialize, Default)] #[serde(rename_all = "lowercase")] pub enum LoggingFormat { /// Text format. + #[default] Text, /// JSON format. Json, } -impl Default for LoggingFormat { - fn default() -> Self { - LoggingFormat::Text - } -} - /// This is used to implement tracing's `FormatEvent` so that we can customize the way tracing /// events are formatted. pub struct FmtEvent { diff --git a/node/src/reactor/main_reactor/catch_up.rs b/node/src/reactor/main_reactor/catch_up.rs index ba6b0ea731..3fa3aa45fc 100644 --- a/node/src/reactor/main_reactor/catch_up.rs +++ b/node/src/reactor/main_reactor/catch_up.rs @@ -130,12 +130,10 @@ impl MainReactor { // no trusted hash, no local block, might be genesis self.catch_up_check_genesis() } - Err(storage_err) => { - return Either::Right(CatchUpInstruction::Fatal(format!( - "CatchUp: Could not read storage to find highest switch block header: {}", - storage_err - ))); - } + Err(storage_err) => Either::Right(CatchUpInstruction::Fatal(format!( + "CatchUp: Could not read storage to find highest switch block header: {}", + storage_err + ))), } } Err(err) => Either::Right(CatchUpInstruction::Fatal(format!( diff --git a/node/src/reactor/queue_kind.rs b/node/src/reactor/queue_kind.rs index 52e5bdef14..628ccc0ee6 100644 --- a/node/src/reactor/queue_kind.rs +++ b/node/src/reactor/queue_kind.rs @@ -12,7 +12,9 @@ use serde::Serialize; /// Scheduling priority. /// /// Priorities are ordered from lowest to highest. -#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, IntoEnumIterator, PartialOrd, Ord, Serialize)] +#[derive( + Copy, Clone, Debug, Eq, PartialEq, Hash, IntoEnumIterator, PartialOrd, Ord, Serialize, Default, +)] pub enum QueueKind { /// Control messages for the runtime itself. Control, @@ -37,6 +39,7 @@ pub enum QueueKind { /// Events of unspecified priority. /// /// This is the default queue. + #[default] Regular, /// Gossiper events. Gossip, @@ -82,12 +85,6 @@ impl Display for QueueKind { } } -impl Default for QueueKind { - fn default() -> Self { - QueueKind::Regular - } -} - impl QueueKind { /// Returns the weight of a specific queue. /// diff --git a/node/src/types/validator_matrix.rs b/node/src/types/validator_matrix.rs index d4cb23c59e..de5172de70 100644 --- a/node/src/types/validator_matrix.rs +++ b/node/src/types/validator_matrix.rs @@ -538,7 +538,6 @@ mod tests { let mut era_validator_weights = vec![validator_matrix.validator_weights(0.into()).unwrap()]; era_validator_weights.extend( (1..MAX_VALIDATOR_MATRIX_ENTRIES as u64) - .into_iter() .map(EraId::from) .map(empty_era_validator_weights), ); @@ -631,7 +630,6 @@ mod tests { let mut era_validator_weights = vec![validator_matrix.validator_weights(0.into()).unwrap()]; era_validator_weights.extend( (1..=MAX_VALIDATOR_MATRIX_ENTRIES as u64) - .into_iter() .map(EraId::from) .map(empty_era_validator_weights), ); @@ -648,12 +646,7 @@ mod tests { } // Register eras [7, 8, 9]. - era_validator_weights.extend( - (7..=9) - .into_iter() - .map(EraId::from) - .map(empty_era_validator_weights), - ); + era_validator_weights.extend((7..=9).map(EraId::from).map(empty_era_validator_weights)); for evw in era_validator_weights.iter().rev().take(3).cloned() { assert!( validator_matrix.register_era_validator_weights(evw), diff --git a/node/src/utils/external.rs b/node/src/utils/external.rs index 479948252c..e5a112056f 100644 --- a/node/src/utils/external.rs +++ b/node/src/utils/external.rs @@ -43,12 +43,13 @@ pub static RESOURCES_PATH: Lazy = /// An `External` also always provides a default, which will always result in an error when `load` /// is called. Should the underlying type `T` implement `Default`, the `with_default` can be /// used instead. -#[derive(Clone, DataSize, Eq, Debug, Deserialize, PartialEq, Serialize)] +#[derive(Clone, DataSize, Eq, Debug, Deserialize, PartialEq, Serialize, Default)] #[serde(untagged)] pub enum External { /// Value that should be loaded from an external path. Path(PathBuf), /// The value has not been specified, but a default has been requested. + #[default] #[serde(skip)] Missing, } @@ -104,12 +105,6 @@ pub trait Loadable: Sized { } } -impl Default for External { - fn default() -> Self { - External::Missing - } -} - fn display_res_path(result: &Result) -> String { result .as_ref() diff --git a/node/src/utils/fmt_limit.rs b/node/src/utils/fmt_limit.rs index ae8ec19f44..c11f4c6129 100644 --- a/node/src/utils/fmt_limit.rs +++ b/node/src/utils/fmt_limit.rs @@ -103,7 +103,7 @@ mod tests { #[test] fn limit_debug_works() { - let collection: Vec<_> = (0..5).into_iter().collect(); + let collection: Vec<_> = (0..5).collect(); // Sanity check. assert_eq!(format!("{:?}", collection), "[0, 1, 2, 3, 4]"); From cb4b1659705edbfa61ce03881449572b595dc0b7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 7 Aug 2023 13:24:57 +0200 Subject: [PATCH 603/735] Make `box_reply` available publically, fix tests and add `CorsOrigin::{to_cors_builder, from_str}` --- json_rpc/src/lib.rs | 60 ++++++++++++++++++++++++++++++++++----------- 1 file changed, 46 insertions(+), 14 deletions(-) diff --git a/json_rpc/src/lib.rs b/json_rpc/src/lib.rs index 1fe60d1f66..09d25607c2 100644 --- a/json_rpc/src/lib.rs +++ b/json_rpc/src/lib.rs @@ -40,7 +40,7 @@ //! let path = "rpc"; //! let max_body_bytes = 1024; //! let allow_unknown_fields = false; -//! let route = casper_json_rpc::route(path, max_body_bytes, handlers, allow_unknown_fields); +//! let route = casper_json_rpc::route(path, max_body_bytes, handlers, allow_unknown_fields, None); //! //! // Convert it into a `Service` and run it. //! let make_svc = hyper::service::make_service_fn(move |_| { @@ -104,6 +104,33 @@ pub enum CorsOrigin { Specified(String), } +impl CorsOrigin { + /// Converts the [`CorsOrigin`] into a CORS [`Builder`](warp::cors::Builder). + #[inline] + pub fn to_cors_builder(&self) -> warp::cors::Builder { + match self { + CorsOrigin::Any => warp::cors().allow_any_origin(), + CorsOrigin::Specified(origin) => warp::cors().allow_origin(origin.as_str()), + } + } + + /// Parses a [`CorsOrigin`] from a given configuration string. + /// + /// The input string will be parsed as follows: + /// + /// * `""` (empty string): No CORS Origin (i.e. returns [`None`]). + /// * `"*"`: [`CorsOrigin::Any`]. + /// * otherwise, returns `CorsOrigin::Specified(raw)`. + #[inline] + pub fn from_str>(raw: T) -> Option { + match raw.as_ref() { + "" => None, + "*" => Some(CorsOrigin::Any), + _ => Some(CorsOrigin::Specified(raw.to_string())), + } + } +} + /// Constructs a set of warp filters suitable for use in a JSON-RPC server. /// /// `path` specifies the exact HTTP path for JSON-RPC requests, e.g. "rpc" will match requests on @@ -139,18 +166,11 @@ pub fn route>( .recover(filters::handle_rejection); if let Some(cors_origin) = cors_header { - let cors = match cors_origin { - CorsOrigin::Any => warp::cors() - .allow_any_origin() - .allow_header(CONTENT_TYPE) - .allow_method(Method::POST) - .build(), - CorsOrigin::Specified(origin) => warp::cors() - .allow_origin(origin.as_str()) - .allow_header(CONTENT_TYPE) - .allow_method(Method::POST) - .build(), - }; + let cors = cors_origin + .to_cors_builder() + .allow_header(CONTENT_TYPE) + .allow_method(Method::POST) + .build(); base.with(cors).map(box_reply).boxed() } else { base.map(box_reply).boxed() @@ -158,8 +178,20 @@ pub fn route>( } /// Boxes a reply of a warp filter. +/// +/// Can be combined with [`Filter::boxed`] through [`Filter::map`] to erase the type on filters: +/// +/// ```rust +/// use warp::{Filter, filters::BoxedFilter, http::Response, reply::Reply}; +///# use casper_json_rpc::box_reply; +/// +/// let filter: BoxedFilter<(Box,)> = warp::any() +/// .map(|| Response::builder().body("hello world")) +/// .map(box_reply).boxed(); +///# drop(filter); +/// ``` #[inline(always)] -fn box_reply(reply: T) -> Box { +pub fn box_reply(reply: T) -> Box { let boxed: Box = Box::new(reply); boxed } From cda7fa9b2cc88c13bb3c569439bed3fe6022333b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 7 Aug 2023 13:50:39 +0200 Subject: [PATCH 604/735] Bring `CorsOrigin` handling in line in remainder of code --- node/src/components/event_stream_server.rs | 94 +++++-------------- node/src/components/rest_server.rs | 33 ++----- .../src/components/rest_server/http_server.rs | 74 ++++----------- node/src/components/rpc_server.rs | 5 +- node/src/components/rpc_server/http_server.rs | 50 +++------- .../rpc_server/speculative_exec_server.rs | 50 +++------- 6 files changed, 73 insertions(+), 233 deletions(-) diff --git a/node/src/components/event_stream_server.rs b/node/src/components/event_stream_server.rs index d4f8b8523a..85373a7a91 100644 --- a/node/src/components/event_stream_server.rs +++ b/node/src/components/event_stream_server.rs @@ -27,6 +27,7 @@ mod tests; use std::{fmt::Debug, net::SocketAddr, path::PathBuf}; +use casper_json_rpc::{box_reply, CorsOrigin}; use datasize::DataSize; use tokio::sync::mpsc::{self, UnboundedSender}; use tracing::{error, info, warn}; @@ -125,78 +126,31 @@ impl EventStreamServer { let (sse_data_sender, sse_data_receiver) = mpsc::unbounded_channel(); - let listening_address = match self.config.cors_origin.as_str() { - "" => { - let (listening_address, server_with_shutdown) = warp::serve(sse_filter) - .try_bind_with_graceful_shutdown( - required_address, - shutdown_fuse.clone().wait_owned(), - ) - .map_err(|error| ListeningError::Listen { - address: required_address, - error: Box::new(error), - })?; - - tokio::spawn(http_server::run( - self.config.clone(), - self.api_version, - server_with_shutdown, - shutdown_fuse, - sse_data_receiver, - event_broadcaster, - new_subscriber_info_receiver, - )); - listening_address - } - "*" => { - let (listening_address, server_with_shutdown) = - warp::serve(sse_filter.with(warp::cors().allow_any_origin())) - .try_bind_with_graceful_shutdown( - required_address, - shutdown_fuse.clone().wait_owned(), - ) - .map_err(|error| ListeningError::Listen { - address: required_address, - error: Box::new(error), - })?; - - tokio::spawn(http_server::run( - self.config.clone(), - self.api_version, - server_with_shutdown, - shutdown_fuse, - sse_data_receiver, - event_broadcaster, - new_subscriber_info_receiver, - )); - listening_address - } - _ => { - let (listening_address, server_with_shutdown) = warp::serve( - sse_filter.with(warp::cors().allow_origin(self.config.cors_origin.as_str())), - ) - .try_bind_with_graceful_shutdown( - required_address, - shutdown_fuse.clone().wait_owned(), - ) - .map_err(|error| ListeningError::Listen { - address: required_address, - error: Box::new(error), - })?; - - tokio::spawn(http_server::run( - self.config.clone(), - self.api_version, - server_with_shutdown, - shutdown_fuse, - sse_data_receiver, - event_broadcaster, - new_subscriber_info_receiver, - )); - listening_address - } + let sse_filter = match CorsOrigin::from_str(&self.config.cors_origin) { + Some(cors_origin) => sse_filter + .with(cors_origin.to_cors_builder().build()) + .map(box_reply) + .boxed(), + None => sse_filter.map(box_reply).boxed(), }; + let (listening_address, server_with_shutdown) = warp::serve(sse_filter) + .try_bind_with_graceful_shutdown(required_address, shutdown_fuse.clone().wait_owned()) + .map_err(|error| ListeningError::Listen { + address: required_address, + error: Box::new(error), + })?; + + tokio::spawn(http_server::run( + self.config.clone(), + self.api_version, + server_with_shutdown, + shutdown_fuse, + sse_data_receiver, + event_broadcaster, + new_subscriber_info_receiver, + )); + info!(address=%listening_address, "started event stream server"); let event_indexer = EventIndexer::new(self.storage_path.clone()); diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index e124991623..7b3082b6a8 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -330,31 +330,14 @@ where let builder = utils::start_listening(&cfg.address)?; - let server_join_handle = match cfg.cors_origin.as_str() { - "" => Some(tokio::spawn(http_server::run( - builder, - effect_builder, - self.api_version, - shutdown_fuse.clone(), - cfg.qps_limit, - ))), - "*" => Some(tokio::spawn(http_server::run_with_cors( - builder, - effect_builder, - self.api_version, - shutdown_fuse.clone(), - cfg.qps_limit, - CorsOrigin::Any, - ))), - _ => Some(tokio::spawn(http_server::run_with_cors( - builder, - effect_builder, - self.api_version, - shutdown_fuse.clone(), - cfg.qps_limit, - CorsOrigin::Specified(cfg.cors_origin.clone()), - ))), - }; + let server_join_handle = Some(tokio::spawn(http_server::run( + builder, + effect_builder, + self.api_version, + shutdown_fuse.clone(), + cfg.qps_limit, + CorsOrigin::from_str(&cfg.cors_origin), + ))); let node_startup_instant = self.node_startup_instant; let network_name = self.network_name.clone(); diff --git a/node/src/components/rest_server/http_server.rs b/node/src/components/rest_server/http_server.rs index 98a794c99a..f8d9db9f1a 100644 --- a/node/src/components/rest_server/http_server.rs +++ b/node/src/components/rest_server/http_server.rs @@ -22,6 +22,7 @@ pub(super) async fn run( api_version: ProtocolVersion, shutdown_fuse: ObservableFuse, qps_limit: u64, + cors_origin: Option, ) { // REST filters. let rest_status = filters::create_status_filter(effect_builder, api_version); @@ -31,64 +32,21 @@ pub(super) async fn run( filters::create_validator_changes_filter(effect_builder, api_version); let rest_chainspec_filter = filters::create_chainspec_filter(effect_builder, api_version); - let service = warp::service( - rest_status - .or(rest_metrics) - .or(rest_open_rpc) - .or(rest_validator_changes) - .or(rest_chainspec_filter), - ); - - // Start the server, passing a oneshot receiver to allow the server to be shut down gracefully. - let make_svc = - hyper::service::make_service_fn(move |_| future::ok::<_, Infallible>(service.clone())); - - let rate_limited_service = ServiceBuilder::new() - .rate_limit(qps_limit, Duration::from_secs(1)) - .service(make_svc); - - let server = builder.serve(rate_limited_service); - info!(address = %server.local_addr(), "started REST server"); - - // Shutdown the server gracefully. - let _ = server - .with_graceful_shutdown(shutdown_fuse.wait_owned()) - .map_err(|error| { - warn!(%error, "error running REST server"); - }) - .await; -} - -/// Run the REST HTTP server with CORS enabled. -/// -/// A message received on `shutdown_receiver` will cause the server to exit cleanly. -pub(super) async fn run_with_cors( - builder: Builder, - effect_builder: EffectBuilder, - api_version: ProtocolVersion, - shutdown_fuse: ObservableFuse, - qps_limit: u64, - cors_origin: CorsOrigin, -) { - // REST filters. - let rest_status = filters::create_status_filter(effect_builder, api_version); - let rest_metrics = filters::create_metrics_filter(effect_builder); - let rest_open_rpc = filters::create_rpc_schema_filter(effect_builder); - let rest_validator_changes = - filters::create_validator_changes_filter(effect_builder, api_version); - let rest_chainspec_filter = filters::create_chainspec_filter(effect_builder, api_version); - - let service = warp::service( - rest_status - .or(rest_metrics) - .or(rest_open_rpc) - .or(rest_validator_changes) - .or(rest_chainspec_filter) - .with(match cors_origin { - CorsOrigin::Any => warp::cors().allow_any_origin(), - CorsOrigin::Specified(origin) => warp::cors().allow_origin(origin.as_str()), - }), - ); + let base_filter = rest_status + .or(rest_metrics) + .or(rest_open_rpc) + .or(rest_validator_changes) + .or(rest_chainspec_filter); + + let filter = match cors_origin { + Some(cors_origin) => base_filter + .with(cors_origin.to_cors_builder().build()) + .map(casper_json_rpc::box_reply) + .boxed(), + None => base_filter.map(casper_json_rpc::box_reply).boxed(), + }; + + let service = warp::service(filter); // Start the server, passing a fuse to allow the server to be shut down gracefully. let make_svc = diff --git a/node/src/components/rpc_server.rs b/node/src/components/rpc_server.rs index 7c55c816c1..35831d4b8d 100644 --- a/node/src/components/rpc_server.rs +++ b/node/src/components/rpc_server.rs @@ -20,6 +20,7 @@ mod speculative_exec_server; use std::{fmt::Debug, time::Instant}; +use casper_json_rpc::CorsOrigin; use datasize::DataSize; use futures::join; use tracing::{error, info, warn}; @@ -453,7 +454,7 @@ where self.api_version, cfg.qps_limit, cfg.max_body_bytes, - cfg.cors_origin.clone(), + CorsOrigin::from_str(&cfg.cors_origin), )); Some(()) } else { @@ -468,7 +469,7 @@ where self.api_version, cfg.qps_limit, cfg.max_body_bytes, - cfg.cors_origin.clone(), + CorsOrigin::from_str(&cfg.cors_origin), )); Ok(Effects::new()) diff --git a/node/src/components/rpc_server/http_server.rs b/node/src/components/rpc_server/http_server.rs index c7b28e56ac..0d49141eb5 100644 --- a/node/src/components/rpc_server/http_server.rs +++ b/node/src/components/rpc_server/http_server.rs @@ -33,7 +33,7 @@ pub(super) async fn run( api_version: ProtocolVersion, qps_limit: u64, max_body_bytes: u32, - cors_origin: String, + cors_origin: Option, ) { let mut handlers = RequestHandlersBuilder::new(); PutDeploy::register_as_handler(effect_builder, api_version, &mut handlers); @@ -58,42 +58,14 @@ pub(super) async fn run( QueryBalance::register_as_handler(effect_builder, api_version, &mut handlers); let handlers = handlers.build(); - match cors_origin.as_str() { - "" => { - super::rpcs::run( - builder, - handlers, - qps_limit, - max_body_bytes, - RPC_API_PATH, - RPC_API_SERVER_NAME, - None, - ) - .await - } - "*" => { - super::rpcs::run( - builder, - handlers, - qps_limit, - max_body_bytes, - RPC_API_PATH, - RPC_API_SERVER_NAME, - Some(CorsOrigin::Any), - ) - .await - } - _ => { - super::rpcs::run( - builder, - handlers, - qps_limit, - max_body_bytes, - RPC_API_PATH, - RPC_API_SERVER_NAME, - Some(CorsOrigin::Specified(cors_origin)), - ) - .await - } - } + super::rpcs::run( + builder, + handlers, + qps_limit, + max_body_bytes, + RPC_API_PATH, + RPC_API_SERVER_NAME, + cors_origin, + ) + .await } diff --git a/node/src/components/rpc_server/speculative_exec_server.rs b/node/src/components/rpc_server/speculative_exec_server.rs index 6a6dcbdbdd..02cc239e75 100644 --- a/node/src/components/rpc_server/speculative_exec_server.rs +++ b/node/src/components/rpc_server/speculative_exec_server.rs @@ -21,48 +21,20 @@ pub(super) async fn run( api_version: ProtocolVersion, qps_limit: u64, max_body_bytes: u32, - cors_origin: String, + cors_origin: Option, ) { let mut handlers = RequestHandlersBuilder::new(); SpeculativeExec::register_as_handler(effect_builder, api_version, &mut handlers); let handlers = handlers.build(); - match cors_origin.as_str() { - "" => { - super::rpcs::run( - builder, - handlers, - qps_limit, - max_body_bytes, - SPECULATIVE_EXEC_API_PATH, - SPECULATIVE_EXEC_SERVER_NAME, - None, - ) - .await; - } - "*" => { - super::rpcs::run( - builder, - handlers, - qps_limit, - max_body_bytes, - SPECULATIVE_EXEC_API_PATH, - SPECULATIVE_EXEC_SERVER_NAME, - Some(CorsOrigin::Any), - ) - .await - } - _ => { - super::rpcs::run( - builder, - handlers, - qps_limit, - max_body_bytes, - SPECULATIVE_EXEC_API_PATH, - SPECULATIVE_EXEC_SERVER_NAME, - Some(CorsOrigin::Specified(cors_origin)), - ) - .await - } - } + super::rpcs::run( + builder, + handlers, + qps_limit, + max_body_bytes, + SPECULATIVE_EXEC_API_PATH, + SPECULATIVE_EXEC_SERVER_NAME, + cors_origin, + ) + .await; } From 250ab76fe94ae0015d32bcc6d7a33fb653f6cebb Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 7 Aug 2023 14:58:29 +0200 Subject: [PATCH 605/735] Remove actual `muxink` crate --- Cargo.lock | 16 - Cargo.toml | 1 - muxink/Cargo.toml | 29 - muxink/src/backpressured.rs | 901 ------------------------- muxink/src/bin/load_testing.rs | 94 --- muxink/src/demux.rs | 497 -------------- muxink/src/fragmented.rs | 512 -------------- muxink/src/framing.rs | 64 -- muxink/src/framing/fixed_size.rs | 145 ---- muxink/src/framing/length_delimited.rs | 179 ----- muxink/src/io.rs | 493 -------------- muxink/src/lib.rs | 113 ---- muxink/src/little_endian.rs | 215 ------ muxink/src/mux.rs | 480 ------------- muxink/src/testing.rs | 123 ---- muxink/src/testing/encoding.rs | 112 --- muxink/src/testing/fixtures.rs | 119 ---- muxink/src/testing/pipe.rs | 209 ------ muxink/src/testing/testing_sink.rs | 378 ----------- muxink/src/testing/testing_stream.rs | 177 ----- node/Cargo.toml | 1 - 21 files changed, 4858 deletions(-) delete mode 100644 muxink/Cargo.toml delete mode 100644 muxink/src/backpressured.rs delete mode 100644 muxink/src/bin/load_testing.rs delete mode 100644 muxink/src/demux.rs delete mode 100644 muxink/src/fragmented.rs delete mode 100644 muxink/src/framing.rs delete mode 100644 muxink/src/framing/fixed_size.rs delete mode 100644 muxink/src/framing/length_delimited.rs delete mode 100644 muxink/src/io.rs delete mode 100644 muxink/src/lib.rs delete mode 100644 muxink/src/little_endian.rs delete mode 100644 muxink/src/mux.rs delete mode 100644 muxink/src/testing.rs delete mode 100644 muxink/src/testing/encoding.rs delete mode 100644 muxink/src/testing/fixtures.rs delete mode 100644 muxink/src/testing/pipe.rs delete mode 100644 muxink/src/testing/testing_sink.rs delete mode 100644 muxink/src/testing/testing_stream.rs diff --git a/Cargo.lock b/Cargo.lock index d4f392e9ea..67b45c9a4f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -657,7 +657,6 @@ dependencies = [ "linked-hash-map", "lmdb-rkv", "log", - "muxink", "num", "num-derive", "num-rational", @@ -3508,20 +3507,6 @@ dependencies = [ "casper-types", ] -[[package]] -name = "muxink" -version = "0.1.0" -dependencies = [ - "bytes", - "futures", - "rand 0.8.5", - "thiserror", - "tokio", - "tokio-stream", - "tokio-util 0.7.7", - "tracing", -] - [[package]] name = "named-dictionary-test" version = "0.1.0" @@ -5485,7 +5470,6 @@ checksum = "5427d89453009325de0d8f342c9490009f76e999cb7672d77e46267448f7e6b2" dependencies = [ "bytes", "futures-core", - "futures-io", "futures-sink", "pin-project-lite", "tokio", diff --git a/Cargo.toml b/Cargo.toml index f539705a61..4a3b2ee08a 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -7,7 +7,6 @@ members = [ "hashing", "json_rpc", "juliet", - "muxink", "node", "smart_contracts/contract", "smart_contracts/contracts/[!.]*/*", diff --git a/muxink/Cargo.toml b/muxink/Cargo.toml deleted file mode 100644 index 2e9ee8e595..0000000000 --- a/muxink/Cargo.toml +++ /dev/null @@ -1,29 +0,0 @@ -[package] -name = "muxink" -version = "0.1.0" -edition = "2021" - -[features] -default = [] -testing = ["tokio-stream", "rand"] - -[[bin]] -name = "load_testing" -test = false -bench = false -required-features = ["testing"] - -[dependencies] -bytes = "1.1.0" -futures = "0.3.21" -thiserror = "1.0.31" -tokio = { version = "1" } -tokio-util = "0.7.2" -tracing = "0.1.18" -tokio-stream = { version = "0.1.8", optional = true } -rand = { version = "0.8.5", optional = true } - -[dev-dependencies] -tokio = { version = "1", features = [ "io-util", "macros", "net", "rt" ] } -tokio-stream = "0.1.8" -tokio-util = { version = "0.7.2", features = [ "compat" ] } diff --git a/muxink/src/backpressured.rs b/muxink/src/backpressured.rs deleted file mode 100644 index 5aa0a55526..0000000000 --- a/muxink/src/backpressured.rs +++ /dev/null @@ -1,901 +0,0 @@ -//! Backpressured sink and stream. -//! -//! Backpressure is notifying the sender of data that no more data can be sent without the receiver -//! running out of resources to process it. -//! -//! "Natural" backpressure is already built into TCP itself, which has limited send and receive -//! buffers: If a receiver is not reading fast enough, the sender is ultimately forced to buffer -//! more data locally or pause sending. -//! -//! The issue with this type of implementation is that if multiple channels (see [`crate::mux`]) are -//! used across a shared TCP connection, a single blocking channel will block all the other channels -//! ([Head-of-line blocking](https://en.wikipedia.org/wiki/Head-of-line_blocking)). Furthermore, -//! deadlocks can occur if the data sent is a request which requires a response - should two peers -//! make requests of each other at the same and end up backpressured, they may end up simultaneously -//! waiting for the other peer to make progress. -//! -//! This module allows implementing backpressure over sinks and streams, which can be organized in a -//! multiplexed setup, guaranteed to not be impeding the flow of other channels. - -use std::{ - cmp::max, - marker::PhantomData, - pin::Pin, - task::{Context, Poll}, -}; - -use futures::{ - channel::mpsc::{Receiver, Sender}, - ready, Sink, SinkExt, Stream, StreamExt, -}; -use thiserror::Error; -use tracing::error; - -use crate::try_ready; - -/// A backpressuring sink. -/// -/// Combines a stream `A` of acknoledgements (ACKs) with a sink `S` that will count items in flight -/// and expect an appropriate amount of ACKs to flow back through it. -/// -/// The `BackpressuredSink` will pass `window_size` items at most to the wrapped sink without having -/// received one or more ACKs through the `ack_stream`. If this limit is exceeded, the sink polls as -/// pending. -/// -/// The ACKs sent back must be `u64`s, the sink will expect to receive at most one ACK per item -/// sent. The first sent item is expected to receive an ACK of `1u64`, the second `2u64` and so on. -/// -/// ACKs are not acknowledgments for a specific item being processed but indicate the total number -/// of processed items instead, thus they are unordered. They may be combined, an ACK of `n` implies -/// all missing ACKs `< n`. -/// -/// Duplicate ACKs will cause an error, thus sending ACKs in the wrong order will cause an error in -/// the sink, as the higher ACK will implicitly have contained the lower one. -pub struct BackpressuredSink { - /// The inner sink that items will be forwarded to. - inner: S, - /// A stream of integers representing ACKs, see struct documentation for details. - ack_stream: A, - /// The highest ACK received so far. - received_ack: u64, - /// The number of the next request to be sent. - last_request: u64, - /// Additional number of items to buffer on inner sink before awaiting ACKs (can be 0, which - /// still allows for one item). - window_size: u64, - /// Phantom data required to include `Item` in the type. - _phantom: PhantomData, -} - -/// A backpressure error. -#[derive(Debug, Error)] -pub enum BackpressuredSinkError -where - SinkErr: std::error::Error, - AckErr: std::error::Error, -{ - /// An ACK was received for an item that had not been sent yet. - #[error("received ACK {actual}, but only sent {items_sent} items")] - UnexpectedAck { actual: u64, items_sent: u64 }, - /// Received an ACK for an item that an ACK must have already been received - /// as it is outside the window. - #[error("duplicate ACK {ack_received} received, already received {highest}")] - DuplicateAck { ack_received: u64, highest: u64 }, - /// The ACK stream associated with a backpressured channel was closed. - #[error("ACK stream closed")] - AckStreamClosed, - /// There was an error retrieving ACKs from the ACK stream. - #[error("ACK stream error")] - AckStreamError(#[source] AckErr), - /// The underlying sink had an error. - #[error(transparent)] - Sink(#[from] SinkErr), -} - -impl BackpressuredSink { - /// Constructs a new backpressured sink. - /// - /// `window_size` is the maximum number of additional items to send after the first one without - /// awaiting ACKs for already sent ones (a size of `0` still allows for one item to be sent). - pub fn new(inner: S, ack_stream: A, window_size: u64) -> Self { - Self { - inner, - ack_stream, - received_ack: 0, - last_request: 0, - window_size, - _phantom: PhantomData, - } - } - - /// Deconstructs a backpressured sink into its components. - pub fn into_inner(self) -> (S, A) { - (self.inner, self.ack_stream) - } - - /// Validates a received ack. - /// - /// Returns an error if the `ACK` was a duplicate or from the future. - fn validate_ack( - &mut self, - ack_received: u64, - ) -> Result<(), BackpressuredSinkError> - where - SinkErr: std::error::Error, - AckErr: std::error::Error, - { - if ack_received > self.last_request { - return Err(BackpressuredSinkError::UnexpectedAck { - actual: ack_received, - items_sent: self.last_request, - }); - } - - if ack_received + self.window_size < self.last_request { - return Err(BackpressuredSinkError::DuplicateAck { - ack_received, - highest: self.received_ack, - }); - } - - Ok(()) - } -} - -impl Sink for BackpressuredSink -where - // TODO: `Unpin` trait bounds - // can be removed by using - // `map_unchecked` if - // necessary. - S: Sink + Unpin, - Self: Unpin, - A: Stream> + Unpin, - AckErr: std::error::Error, - >::Error: std::error::Error, -{ - type Error = BackpressuredSinkError<>::Error, AckErr>; - - #[inline] - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = Pin::into_inner(self); - - // Attempt to read as many ACKs as possible. - loop { - match self_mut.ack_stream.poll_next_unpin(cx) { - Poll::Ready(Some(Err(ack_err))) => { - return Poll::Ready(Err(BackpressuredSinkError::AckStreamError(ack_err))) - } - Poll::Ready(Some(Ok(ack_received))) => { - try_ready!(self_mut.validate_ack(ack_received)); - self_mut.received_ack = max(self_mut.received_ack, ack_received); - } - Poll::Ready(None) => { - return Poll::Ready(Err(BackpressuredSinkError::AckStreamClosed)); - } - Poll::Pending => { - // Invariant: `received_ack` is always <= `last_request`. - let in_flight = self_mut.last_request - self_mut.received_ack; - - // We have no more ACKs to read. If we have capacity, we can continue, otherwise - // return pending. - if in_flight <= self_mut.window_size { - break; - } - - return Poll::Pending; - } - } - } - - // We have slots available, it is up to the wrapped sink to accept them. - self_mut - .inner - .poll_ready_unpin(cx) - .map_err(BackpressuredSinkError::Sink) - } - - #[inline] - fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error> { - // We already know there are slots available, increase request count, then forward to sink. - let self_mut = Pin::into_inner(self); - - self_mut.last_request += 1; - - self_mut - .inner - .start_send_unpin(item) - .map_err(BackpressuredSinkError::Sink) - } - - #[inline] - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut() - .inner - .poll_flush_unpin(cx) - .map_err(BackpressuredSinkError::Sink) - } - - #[inline] - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut() - .inner - .poll_close_unpin(cx) - .map_err(BackpressuredSinkError::Sink) - } -} - -/// A ticket from a [`BackpressuredStream`]. -/// -/// Each ticket, when dropped, will queue an ACK to be sent the next time the stream is polled. -/// -/// When the stream that created the ticket is dropped before the ticket, the ACK associated with -/// the ticket is silently ignored. -#[derive(Debug)] -pub struct Ticket { - sender: Sender<()>, -} - -impl Ticket { - /// Creates a new ticket with the cloned `Sender` from the original - /// [`BackpressuredStream`]. - pub fn new(sender: Sender<()>) -> Self { - Self { sender } - } - - /// Creates a dummy ticket that will have no effect when dropped. - pub fn create_dummy() -> Self { - let (sender, _receiver) = futures::channel::mpsc::channel(1); - Self { sender } - } -} - -impl Drop for Ticket { - fn drop(&mut self) { - // Signal to the stream that the associated item has been processed - // and capacity should increase. - if let Err(e) = self.sender.try_send(()) { - // `try_send` can fail if either the buffer is full or the receiver - // was dropped. In the case of a receiver drop, we silently ignore - // the error as there is nothing to notify anymore. - if e.is_full() { - error!("Backpressured stream exceeded window size, ACK channel is full."); - } - } - } -} - -/// Error type for a [`BackpressuredStream`]. -#[derive(Debug, Error)] -pub enum BackpressuredStreamError { - /// Couldn't enqueue an ACK for sending on the ACK sink after it polled ready. - #[error("error sending ACK")] - AckSend(#[source] ErrSendAck), - /// Error on polling the ACK sink. - #[error("error polling the ACK stream")] - AckSinkPoll, - /// Error flushing the ACK sink. - #[error("error flushing the ACK stream")] - Flush, - /// The peer exceeded the configure window size. - #[error("peer exceeded window size")] - ItemOverflow, - /// Error encountered by the underlying stream. - #[error("stream receive failure")] - Stream(#[source] ErrRecv), -} - -/// A backpressuring stream. -/// -/// Combines a sink `A` of acknowledgements (ACKs) with a stream `S` that will allow a maximum -/// number of items in flight and send ACKs back to signal availability. Sending of ACKs is managed -/// through [`Ticket`]s, which will automatically trigger an ACK being sent when dropped. -/// -/// If more than `window_size` items are received on the stream before ACKs have been sent back, the -/// stream will return an error indicating the peer's capacity violation. -/// -/// If a stream is dropped, any outstanding ACKs will be lost. No ACKs will be sent unless this -/// stream is actively polled (e.g. via [`StreamExt::next`](futures::stream::StreamExt::next)). -pub struct BackpressuredStream { - /// Inner stream to which backpressure is added. - inner: S, - /// Sink where the stream sends the ACKs to the sender. Users should ensure - /// this sink is able to buffer `window_size` + 1 ACKs in order to avoid - /// unnecessary latency related to flushing when sending ACKs back to the - /// sender. - ack_sink: A, - /// Receiving end of ACK channel between the yielded tickets and the - /// [`BackpressuredStream`]. ACKs received here will then be forwarded to - /// the sender through `ack_stream`. - ack_receiver: Receiver<()>, - /// Sending end of ACK channel between the yielded tickets and the - /// [`BackpressuredStream`]. This sender will be cloned and yielded in the - /// form of a ticket along with items from the inner stream. - ack_sender: Sender<()>, - /// Counter of items processed. - items_processed: u64, - /// Counter of items received from the underlying stream. - last_received: u64, - /// Counter of ACKs received from yielded tickets. - acks_received: u64, - /// The maximum number of items the stream can process at a single point - /// in time. - window_size: u64, - /// Phantom data required to include `Item` in the type. - _phantom: PhantomData, -} - -impl BackpressuredStream { - /// Creates a new [`BackpressuredStream`] with a window size from a given - /// stream and ACK sink. - pub fn new(inner: S, ack_sink: A, window_size: u64) -> Self { - // Create the channel used by tickets to signal that items are done - // processing. The channel will have a buffer of size `window_size + 1` - // as a `BackpressuredStream` with a window size of 0 should still be - // able to yield one item at a time. - let (ack_sender, ack_receiver) = futures::channel::mpsc::channel(window_size as usize + 1); - Self { - inner, - ack_sink, - ack_receiver, - ack_sender, - items_processed: 0, - last_received: 0, - acks_received: 0, - window_size, - _phantom: PhantomData, - } - } -} - -impl Stream for BackpressuredStream -where - S: Stream> + Unpin, - E: std::error::Error, - Self: Unpin, - A: Sink + Unpin, - >::Error: std::error::Error, -{ - type Item = Result<(StreamItem, Ticket), BackpressuredStreamError>::Error>>; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - // Retrieve every ACK from `ack_receiver`. - loop { - match self_mut.ack_receiver.poll_next_unpin(cx) { - Poll::Ready(Some(_)) => { - // Add to the received ACK counter. - self_mut.acks_received += 1; - } - // If there are no more ACKs waiting in the receiver, - // move on to sending anything received so far. - Poll::Pending => break, - // This is actually unreachable since the ACK stream - // will return `Poll::Ready(None)` only when all the - // senders are dropped, but one sender is always held - // within this struct. - Poll::Ready(None) => return Poll::Ready(None), - } - } - - // If there are received ACKs, proceed to enqueue them for sending. - if self_mut.acks_received > 0 { - // Ensure the ACK sink is ready to accept new ACKs. - match self_mut.ack_sink.poll_ready_unpin(cx) { - Poll::Ready(Ok(_)) => { - // Update the number of processed items. Items are considered - // processed at this point even though they haven't been - // flushed yet. From the point of view of a - // `BackpressuredStream`, the resources of the associated - // messages have been freed, so there is available capacity - // for more messages. - self_mut.items_processed += self_mut.acks_received; - // Enqueue one item representing the number of items processed - // so far. This should never be an error as the sink must be - // ready to accept new items at this point. - if let Err(err) = self_mut.ack_sink.start_send_unpin(self_mut.items_processed) { - return Poll::Ready(Some(Err(BackpressuredStreamError::AckSend(err)))); - } - // Now that the ACKs have been handed to the ACK sink, - // reset the received ACK counter. - self_mut.acks_received = 0; - } - Poll::Ready(Err(_)) => { - // Return the error on the ACK sink. - return Poll::Ready(Some(Err(BackpressuredStreamError::AckSinkPoll))); - } - Poll::Pending => { - // Even though the sink is not ready to accept new items, - // the ACKs received from dropped tickets mean the stream - // has available capacity to accept new items. Any ACKs - // received from tickets are buffered in `acks_received` - // and will eventually be sent. - } - } - } - - // After ensuring all possible ACKs have been received and handed to - // the ACK sink, look to accept new items from the underlying stream. - // If the stream is pending, then this backpressured stream is also - // pending. - match ready!(self_mut.inner.poll_next_unpin(cx)) { - Some(Ok(next_item)) => { - // After receiving an item, ensure the maximum number of - // in-flight items does not exceed the window size. - if self_mut.last_received > self_mut.items_processed + self_mut.window_size { - return Poll::Ready(Some(Err(BackpressuredStreamError::ItemOverflow))); - } - // Update the counter of received items. - self_mut.last_received += 1; - // Yield the item along with a ticket to be released when - // the processing of said item is done. - Poll::Ready(Some(Ok(( - next_item, - Ticket::new(self_mut.ack_sender.clone()), - )))) - } - Some(Err(err)) => { - // Return the error on the underlying stream. - Poll::Ready(Some(Err(BackpressuredStreamError::Stream(err)))) - } - None => { - // If the underlying stream is closed, the `BackpressuredStream` - // is also considered closed. Polling the stream after this point - // is undefined behavior. - Poll::Ready(None) - } - } - } -} - -#[cfg(test)] -mod tests { - use std::{collections::VecDeque, convert::Infallible}; - - use futures::{FutureExt, SinkExt, StreamExt}; - use tokio_stream::wrappers::ReceiverStream; - use tokio_util::sync::PollSender; - - use crate::testing::{ - collect_bufs, - encoding::{EncodeAndSend, TestEncodeable}, - fixtures::{OneWayFixtures, TwoWayFixtures, WINDOW_SIZE}, - }; - - use super::{BackpressuredSinkError, BackpressuredStream, BackpressuredStreamError}; - - #[test] - fn backpressured_sink_lifecycle() { - let OneWayFixtures { - mut ack_sink, - sink, - mut bp, - } = OneWayFixtures::new(); - - // The first four attempts at `window_size = 3` should succeed. - bp.encode_and_send('A').now_or_never().unwrap().unwrap(); - bp.encode_and_send('B').now_or_never().unwrap().unwrap(); - bp.encode_and_send('C').now_or_never().unwrap().unwrap(); - bp.encode_and_send('D').now_or_never().unwrap().unwrap(); - - // The fifth attempt will fail, due to no ACKs having been received. - assert!(bp.encode_and_send('E').now_or_never().is_none()); - - // We can now send some ACKs. - ack_sink.send(1).now_or_never().unwrap().unwrap(); - - // Retry sending the fifth message, sixth should still block. - bp.encode_and_send('E').now_or_never().unwrap().unwrap(); - assert!(bp.encode_and_send('F').now_or_never().is_none()); - - // Send a combined ack for three messages. - ack_sink.send(4).now_or_never().unwrap().unwrap(); - - // This allows 3 more messages to go in. - bp.encode_and_send('F').now_or_never().unwrap().unwrap(); - bp.encode_and_send('G').now_or_never().unwrap().unwrap(); - bp.encode_and_send('H').now_or_never().unwrap().unwrap(); - assert!(bp.encode_and_send('I').now_or_never().is_none()); - - // Send more ACKs to ensure we also get errors if there is capacity. - ack_sink.send(6).now_or_never().unwrap().unwrap(); - - // We can now close the ACK stream to check if the sink errors after that. - drop(ack_sink); - - assert!(matches!( - bp.encode_and_send('I').now_or_never(), - Some(Err(BackpressuredSinkError::AckStreamClosed)) - )); - - // Check all data was received correctly. - assert_eq!(sink.get_contents_string(), "ABCDEFGH"); - } - - #[test] - fn backpressured_stream_lifecycle() { - let (sink, stream) = tokio::sync::mpsc::channel::(u8::MAX as usize); - let (ack_sender, mut ack_receiver) = tokio::sync::mpsc::channel::(u8::MAX as usize); - - let stream = ReceiverStream::new(stream).map(|item| { - let res: Result = Ok(item); - res - }); - let mut stream = BackpressuredStream::new(stream, PollSender::new(ack_sender), WINDOW_SIZE); - - // The first four attempts at `window_size = 3` should succeed. - sink.send(0).now_or_never().unwrap().unwrap(); - sink.send(1).now_or_never().unwrap().unwrap(); - sink.send(2).now_or_never().unwrap().unwrap(); - sink.send(3).now_or_never().unwrap().unwrap(); - - let mut items = VecDeque::new(); - let mut tickets = VecDeque::new(); - // Receive the 4 items we sent along with their tickets. - for _ in 0..4 { - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - } - // Make sure there are no AKCs to receive as the tickets have not been - // dropped yet. - assert!(ack_receiver.recv().now_or_never().is_none()); - - // Drop the first ticket. - let _ = tickets.pop_front(); - // Poll the stream to propagate the ticket drop. - assert!(stream.next().now_or_never().is_none()); - - // We should be able to send a new item now that one ticket has been - // dropped. - sink.send(4).now_or_never().unwrap().unwrap(); - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - - // Drop another ticket. - let _ = tickets.pop_front(); - - // Send a new item without propagating the ticket drop through a poll. - // This should work because the ACKs are handled first in the poll - // state machine. - sink.send(5).now_or_never().unwrap().unwrap(); - let (item, ticket) = stream.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - - // Sending another item when the stream is at full capacity should - // yield an error from the stream. - sink.send(6).now_or_never().unwrap().unwrap(); - assert!(stream.next().now_or_never().unwrap().unwrap().is_err()); - } - - #[test] - fn backpressured_roundtrip() { - let TwoWayFixtures { - mut client, - mut server, - } = TwoWayFixtures::new(1024); - - // This test assumes a hardcoded window size of 3. - assert_eq!(WINDOW_SIZE, 3); - - // Send just enough requests to max out the receive window of the backpressured channel. - for i in 0..=3u8 { - client.encode_and_send(i).now_or_never().unwrap().unwrap(); - } - - // Sanity check: Attempting to send another item will be refused by the client side's - // limiter to avoid exceeding the allowed window. - assert!(client.encode_and_send(99_u8).now_or_never().is_none()); - - let mut items = VecDeque::new(); - let mut tickets = VecDeque::new(); - - // Receive the items along with their tickets all at once. - for _ in 0..=WINDOW_SIZE as u8 { - let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - } - - // We simulate the completion of two items by dropping their tickets. - let _ = tickets.pop_front(); - let _ = tickets.pop_front(); - - // Send the ACKs to the client by polling the server. - assert_eq!(server.items_processed, 0); // (Before, the internal channel will not have been polled). - assert_eq!(server.last_received, 4); - assert!(server.next().now_or_never().is_none()); - assert_eq!(server.last_received, 4); - assert_eq!(server.items_processed, 2); - - // Send another item. ACKs will be received at the start, so while it looks like as if we - // cannot send the item initially, the incoming ACK(2) will fix this. - assert_eq!(client.last_request, 4); - assert_eq!(client.received_ack, 0); - client.encode_and_send(4u8).now_or_never().unwrap().unwrap(); - assert_eq!(client.last_request, 5); - assert_eq!(client.received_ack, 2); - assert_eq!(server.items_processed, 2); - - // Send another item, filling up the entire window again. - client.encode_and_send(5u8).now_or_never().unwrap().unwrap(); - assert_eq!(client.last_request, 6); - - // Receive two additional items. - for _ in 0..2 { - let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); - items.push_back(item); - tickets.push_back(ticket); - } - - // At this point client and server should reflect the same state. - assert_eq!(client.last_request, 6); - assert_eq!(client.received_ack, 2); - assert_eq!(server.last_received, 6); - assert_eq!(server.items_processed, 2); - - // Drop all tickets, marking the work as done. - tickets.clear(); - - // The ACKs have been queued now, send them by polling the server. - assert!(server.next().now_or_never().is_none()); - // Make sure the server state reflects the sent ACKs. - assert_eq!(server.items_processed, 6); - - // Send another item. - client.encode_and_send(6u8).now_or_never().unwrap().unwrap(); - assert_eq!(client.received_ack, 6); - assert_eq!(client.last_request, 7); - - // Receive the item. - let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); - assert_eq!(server.items_processed, 6); - assert_eq!(server.last_received, 7); - items.push_back(item); - tickets.push_back(ticket); - - // Send two items. - client.encode_and_send(7u8).now_or_never().unwrap().unwrap(); - client.encode_and_send(8u8).now_or_never().unwrap().unwrap(); - // Receive only one item. - let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); - // The client state should be ahead of the server by one item, which is yet to be yielded in - // a `poll_next` by the server. - items.push_back(item); - tickets.push_back(ticket); - - // Two items are on the server processing, one is in transit: - assert_eq!(tickets.len(), 2); - assert_eq!(client.last_request, 9); - assert_eq!(client.received_ack, 6); - assert_eq!(server.items_processed, 6); - assert_eq!(server.last_received, 8); - - // Finish processing another item. - let _ = tickets.pop_front(); - // Receive the other item. This will implicitly send the ACK from the popped ticket. - let (item, ticket) = server.next().now_or_never().unwrap().unwrap().unwrap(); - // Ensure the stream state has been updated. - assert_eq!(server.items_processed, 7); - assert_eq!(server.last_received, 9); - items.push_back(item); - tickets.push_back(ticket); - - // The server should have received all of these items so far. - assert_eq!( - collect_bufs(items.clone().into_iter()), - b"\x00\x01\x02\x03\x04\x05\x06\x07\x08" - ); - - // Now send two more items to occupy the entire window. In between, the client should have - // received the latest ACK with this poll, so we check it against the stream one to ensure - // correctness. - client.encode_and_send(9u8).now_or_never().unwrap().unwrap(); - assert_eq!(client.received_ack, server.items_processed); - client - .encode_and_send(10u8) - .now_or_never() - .unwrap() - .unwrap(); - // Make sure we reached full capacity in the sink state. - assert_eq!(client.last_request, client.received_ack + 3 + 1); - // Sending a new item should return `Poll::Pending`. - assert!(client.encode_and_send(9u8).now_or_never().is_none()); - } - - #[test] - fn backpressured_sink_premature_ack_kills_stream() { - let OneWayFixtures { - mut ack_sink, - mut bp, - .. - } = OneWayFixtures::new(); - - bp.encode_and_send('A').now_or_never().unwrap().unwrap(); - bp.encode_and_send('B').now_or_never().unwrap().unwrap(); - ack_sink.send(3).now_or_never().unwrap().unwrap(); - - assert!(matches!( - bp.encode_and_send('C').now_or_never(), - Some(Err(BackpressuredSinkError::UnexpectedAck { - items_sent: 2, - actual: 3 - })) - )); - } - - #[test] - fn backpressured_sink_redundant_ack_kills_stream() { - // Window size is 3, so if the sink can send at most - // `window_size + 1` requests, it must also follow that any ACKs fall - // in the [`last_request` - `window_size` - 1, `last_request`] - // interval. In other words, if we sent request no. `last_request`, - // we must have had ACKs up until at least - // `last_request` - `window_size`, so an ACK out of range is a - // duplicate. - let OneWayFixtures { - mut ack_sink, - mut bp, - .. - } = OneWayFixtures::new(); - - bp.encode_and_send('A').now_or_never().unwrap().unwrap(); - bp.encode_and_send('B').now_or_never().unwrap().unwrap(); - // Out of order ACKs work. - ack_sink.send(2).now_or_never().unwrap().unwrap(); - ack_sink.send(1).now_or_never().unwrap().unwrap(); - // Send 3 more items to make it 5 in total. - bp.encode_and_send('C').now_or_never().unwrap().unwrap(); - bp.encode_and_send('D').now_or_never().unwrap().unwrap(); - bp.encode_and_send('E').now_or_never().unwrap().unwrap(); - // Send a duplicate ACK of 1, which is outside the allowed range. - ack_sink.send(1).now_or_never().unwrap().unwrap(); - - assert!(matches!( - bp.encode_and_send('F').now_or_never(), - Some(Err(BackpressuredSinkError::DuplicateAck { - ack_received: 1, - highest: 2 - })) - )); - } - - #[test] - fn backpressured_sink_exceeding_window_kills_stream() { - let TwoWayFixtures { - mut client, - mut server, - } = TwoWayFixtures::new(512); - - // Fill up the receive window. - for _ in 0..=WINDOW_SIZE { - client.encode_and_send('X').now_or_never().unwrap().unwrap(); - } - - // The "overflow" should be rejected. - assert!(client.encode_and_send('X').now_or_never().is_none()); - - // Deconstruct the client, forcing another packet onto "wire". - let (mut sink, _ack_stream) = client.into_inner(); - - sink.encode_and_send('P').now_or_never().unwrap().unwrap(); - - // Now we can look at the server side. - let mut in_progress = Vec::new(); - for _ in 0..=WINDOW_SIZE { - let received = server.next().now_or_never().unwrap().unwrap(); - let (_bytes, ticket) = received.unwrap(); - - // We need to keep the tickets around to simulate the server being busy. - in_progress.push(ticket); - } - - // Now the server should notice that the backpressure limit has been exceeded and return an - // error. - let overflow_err = server.next().now_or_never().unwrap().unwrap().unwrap_err(); - assert!(matches!( - overflow_err, - BackpressuredStreamError::ItemOverflow - )); - } - - #[tokio::test] - async fn backpressured_sink_concurrent_tasks() { - let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - - let TwoWayFixtures { - mut client, - mut server, - } = TwoWayFixtures::new(512); - - let send_fut = tokio::spawn(async move { - for item in to_send.iter() { - // Try to feed each item into the sink. - if client.feed(item.encode()).await.is_err() { - // When `feed` fails, the sink is full, so we flush it. - client.flush().await.unwrap(); - // After flushing, the sink must be able to accept new items. - client.feed(item.encode()).await.unwrap(); - } - } - // Close the sink here to signal the end of the stream on the other end. - client.close().await.unwrap(); - // Return the sink so we don't drop the ACK sending end yet. - client - }); - - let recv_fut = tokio::spawn(async move { - let mut items: Vec = vec![]; - while let Some((item, ticket)) = server.next().await.transpose().unwrap() { - // Receive each item sent by the sink. - items.push(u16::decode(&item)); - // Send the ACK for it. - drop(ticket); - } - items - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - assert_eq!( - recv_result.unwrap(), - (0..u16::MAX).into_iter().rev().collect::>() - ); - } - - #[tokio::test] - async fn backpressured_roundtrip_concurrent_tasks() { - let to_send: Vec = (0..u16::MAX).into_iter().rev().collect(); - let TwoWayFixtures { - mut client, - mut server, - } = TwoWayFixtures::new(512); - - let send_fut = tokio::spawn(async move { - for item in to_send.iter() { - // Try to feed each item into the sink. - if client.feed(item.encode()).await.is_err() { - // When `feed` fails, the sink is full, so we flush it. - client.flush().await.unwrap(); - // After flushing, the sink must be able to accept new items. - match client.feed(item.encode()).await { - Err(BackpressuredSinkError::AckStreamClosed) => { - return client; - } - Ok(_) => {} - Err(e) => { - panic!("Error on sink send: {}", e); - } - } - } - } - // Close the sink here to signal the end of the stream on the other end. - client.close().await.unwrap(); - // Return the sink so we don't drop the ACK sending end yet. - client - }); - - let recv_fut = tokio::spawn(async move { - let mut items: Vec = vec![]; - while let Some(next) = server.next().await { - let (item, ticket) = next.unwrap(); - // Receive each item sent by the sink. - items.push(u16::decode(&item)); - // Make sure to drop the ticket after processing. - drop(ticket); - } - items - }); - - let (send_result, recv_result) = tokio::join!(send_fut, recv_fut); - assert!(send_result.is_ok()); - assert_eq!( - recv_result.unwrap(), - (0..u16::MAX).into_iter().rev().collect::>() - ); - } - - // TODO: Test overflows kill the connection. -} diff --git a/muxink/src/bin/load_testing.rs b/muxink/src/bin/load_testing.rs deleted file mode 100644 index 72c52467bb..0000000000 --- a/muxink/src/bin/load_testing.rs +++ /dev/null @@ -1,94 +0,0 @@ -use std::time::{Duration, Instant}; - -use futures::{FutureExt, SinkExt, StreamExt}; -use rand::{distributions::Standard, thread_rng, Rng}; - -use muxink::{self, testing::fixtures::TwoWayFixtures}; - -macro_rules! p { - ($start:expr, $($arg:tt)*) => {{ - let time = $start.elapsed().as_millis(); - print!("{time} - "); - println!($($arg)*); - }}; -} - -// This binary is useful for probing memory consumption of muxink. -// Probably you want `heaptrack` installed to run this. https://github.com/KDE/heaptrack -// -// Test with: -// ``` -// cargo build --profile release-with-debug --bin load_testing --features testing && \ -// heaptrack -o ~/heap ../target/release-with-debug/load_testing -// ``` - -fn main() { - let s = Instant::now(); - p!(s, "started load_testing binary"); - - let message_size = 1024 * 1024 * 8; - let rand_bytes: Vec = thread_rng() - .sample_iter(Standard) - .take(message_size) - .collect(); - - futures::executor::block_on(async move { - test_ever_larger_buffers_matching_window_size(&s, rand_bytes.clone()).await; - test_cycling_full_buffer(&s, rand_bytes.clone(), 1, 1000).await; - test_cycling_full_buffer(&s, rand_bytes.clone(), 10, 100).await; - test_cycling_full_buffer(&s, rand_bytes.clone(), 100, 10).await; - }); - p!(s, "load_testing binary finished"); -} - -async fn test_ever_larger_buffers_matching_window_size(s: &Instant, rand_bytes: Vec) { - p!(s, "testing buffers (filled to window size)"); - for buffer_size in 1..100 { - let window_size = buffer_size as u64; - p!( - s, - "buffer size = {buffer_size}, expected mem consumption ~= {}", - rand_bytes.len() * buffer_size - ); - let TwoWayFixtures { - mut client, - mut server, - } = TwoWayFixtures::new_with_window(buffer_size, window_size); - for _message_sequence in 0..buffer_size { - client.send(rand_bytes.clone().into()).await.unwrap(); - } - for _message_sequence in 0..buffer_size { - server.next().now_or_never().unwrap(); - } - } -} - -async fn test_cycling_full_buffer( - s: &Instant, - rand_bytes: Vec, - buffer_size: usize, - cycles: u32, -) { - p!( - s, - "testing cycling buffers (fill to window size, then empty)" - ); - let window_size = buffer_size as u64; - p!( - s, - "buffer size = {buffer_size}, expected mem consumption ~= {}", - rand_bytes.len() * buffer_size - ); - let TwoWayFixtures { - mut client, - mut server, - } = TwoWayFixtures::new_with_window(buffer_size, window_size); - for cycles in 0..cycles { - for _message_sequence in 0..buffer_size { - client.send(rand_bytes.clone().into()).await.unwrap(); - } - for _message_sequence in 0..buffer_size { - server.next().now_or_never().unwrap(); - } - } -} diff --git a/muxink/src/demux.rs b/muxink/src/demux.rs deleted file mode 100644 index 4673cf07b5..0000000000 --- a/muxink/src/demux.rs +++ /dev/null @@ -1,497 +0,0 @@ -//! Stream demultiplexing -//! -//! Demultiplexes a Stream of Bytes into multiple channels. Up to 256 channels are supported, and if -//! messages are present on a channel but there isn't an associated [`DemultiplexerHandle`] for that -//! channel, then the stream will never poll as ready. - -use std::{ - error::Error, - pin::Pin, - result::Result, - sync::{Arc, Mutex}, - task::{Context, Poll, Waker}, -}; - -use bytes::{Buf, Bytes}; -use futures::{Stream, StreamExt}; -use thiserror::Error as ThisError; - -const CHANNEL_BYTE_COUNT: usize = MAX_CHANNELS / CHANNELS_PER_BYTE; -const CHANNEL_BYTE_SHIFT: usize = 3; -const CHANNELS_PER_BYTE: usize = 8; -const MAX_CHANNELS: usize = 256; - -#[derive(Debug, ThisError)] -pub enum DemultiplexerError { - #[error("Received message on channel {0} but no handle is listening")] - ChannelNotActive(u8), - #[error("Channel {0} is already in use")] - ChannelUnavailable(u8), - #[error("Received a message of length 0")] - EmptyMessage, - #[error("Message on channel {0} has no frame")] - MissingFrame(u8), - #[error("Stream error: {0}")] - Stream(E), -} - -/// A frame demultiplexer. -/// -/// A demultiplexer is not used directly, but used to spawn demultiplexing handles. -pub struct Demultiplexer { - /// The underlying `Stream`. - stream: S, - /// Flag which indicates whether the underlying stream has finished, whether with an error or - /// with a regular EOF. Placeholder for a `Fuse` so that polling after an error or EOF is safe. - is_finished: bool, - /// Holds the frame and channel, if available, which has been read by a `DemultiplexerHandle` - /// corresponding to a different channel. - next_frame: Option<(u8, Bytes)>, - /// A bit-field representing the channels which have had `DemultiplexerHandle`s constructed. - active_channels: [u8; CHANNEL_BYTE_COUNT], - /// An array of `Waker`s for each channel. - wakers: [Option; MAX_CHANNELS], -} - -impl Demultiplexer { - /// Creates a new demultiplexer with the given underlying stream. - pub fn new(stream: S) -> Demultiplexer { - const WAKERS_INIT: Option = None; - Demultiplexer { - // We fuse the stream in case its unsafe to call it after yielding `Poll::Ready(None)` - stream, - is_finished: false, - // Initially, we have no next frame - next_frame: None, - // Initially, all channels are inactive - active_channels: [0b00000000; CHANNEL_BYTE_COUNT], - // Wakers list, one for each channel - wakers: [WAKERS_INIT; MAX_CHANNELS], - } - } -} - -// Here, we write the logic for accessing and modifying the bit-field representing the active -// channels. -impl Demultiplexer { - fn activate_channel(&mut self, channel: u8) { - self.active_channels[(channel >> CHANNEL_BYTE_SHIFT) as usize] |= - 1 << (channel & (CHANNELS_PER_BYTE as u8 - 1)); - } - - fn deactivate_channel(&mut self, channel: u8) { - self.active_channels[(channel >> CHANNEL_BYTE_SHIFT) as usize] &= - !(1 << (channel & (CHANNELS_PER_BYTE as u8 - 1))); - } - - fn channel_is_active(&self, channel: u8) -> bool { - (self.active_channels[(channel >> CHANNEL_BYTE_SHIFT) as usize] - & (1 << (channel & (CHANNELS_PER_BYTE as u8 - 1)))) - != 0 - } - - fn wake_pending_channels(&mut self) { - for maybe_waker in self.wakers.iter_mut() { - if let Some(waker) = maybe_waker.take() { - waker.wake(); - } - } - } - - fn on_stream_close(&mut self) { - self.is_finished = true; - self.wake_pending_channels(); - } - - /// Creates a handle listening for frames on the given channel. - /// - /// Items received through a given handle may be blocked if other handles on the same - /// Demultiplexer are not polled at the same time. Duplicate handles on the same channel - /// are not allowed. - /// - /// Notice: Once a handle was created, it must be constantly polled for the next item - /// until the end of the stream, after which it should be dropped. If a channel yields - /// a `Poll::Ready` and it is not polled further, the other channels will stall as they - /// will never receive a wake. Also, once the end of the stream has been detected on a - /// channel, it will notify all other pending channels through wakes, but in order for - /// this to happen the user must either keep calling `handle.next().await` or finally - /// drop the handle. - pub fn create_handle( - demux: Arc>, - channel: u8, - ) -> Result, DemultiplexerError> - where - E: Error, - { - let mut demux_guard = demux.lock().expect("poisoned lock"); - - if demux_guard.channel_is_active(channel) { - return Err(DemultiplexerError::ChannelUnavailable(channel)); - } - - demux_guard.activate_channel(channel); - - Ok(DemultiplexerHandle { - channel, - demux: demux.clone(), - }) - } -} - -/// A handle to a demultiplexer. -/// -/// A handle is bound to a specific channel, see [`Demultiplexer::create_handle`] for details. -pub struct DemultiplexerHandle { - /// Which channel this handle is listening on. - channel: u8, - /// A reference to the underlying demultiplexer. - demux: Arc>>, -} - -impl Drop for DemultiplexerHandle { - fn drop(&mut self) { - let mut demux = self.demux.lock().expect("poisoned lock"); - demux.wakers[self.channel as usize] = None; - demux.wake_pending_channels(); - demux.deactivate_channel(self.channel); - } -} - -impl Stream for DemultiplexerHandle -where - S: Stream> + Unpin, - E: Error, -{ - type Item = Result>; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - // Lock the demultiplexer. - let mut demux = self.demux.lock().expect("poisoned lock"); - // Unchecked access is safe because the `Vec` was preallocated with necessary elements. - demux.wakers[self.channel as usize] = None; - - // If next_frame has a suitable frame for this channel, return it in a `Poll::Ready`. If it - // has an unsuitable frame, return `Poll::Pending`. Otherwise, we attempt to read - // from the stream. - if let Some((channel, ref bytes)) = demux.next_frame { - if channel == self.channel { - let bytes = bytes.clone(); - demux.next_frame = None; - return Poll::Ready(Some(Ok(bytes))); - } else { - // Wake the channel this frame is for while also deregistering its - // waker from the list. - if let Some(waker) = demux.wakers[channel as usize].take() { - waker.wake() - } - // Before returning `Poll::Pending`, register this channel's waker - // so that other channels can wake it up when it receives a frame. - demux.wakers[self.channel as usize] = Some(cx.waker().clone()); - return Poll::Pending; - } - } - - if demux.is_finished { - return Poll::Ready(None); - } - - // Try to read from the stream, placing the frame into `next_frame` and returning - // `Poll::Pending` if it's in the wrong channel, otherwise returning it in a - // `Poll::Ready`. - let unpin_outcome = match demux.stream.poll_next_unpin(cx) { - Poll::Ready(outcome) => outcome, - Poll::Pending => { - // We need to register our waker to be woken up once data comes in. - demux.wakers[self.channel as usize] = Some(cx.waker().clone()); - return Poll::Pending; - } - }; - - match unpin_outcome { - Some(Ok(mut bytes)) => { - if bytes.is_empty() { - return Poll::Ready(Some(Err(DemultiplexerError::EmptyMessage))); - } - - let channel = bytes.get_u8(); - if bytes.is_empty() { - return Poll::Ready(Some(Err(DemultiplexerError::MissingFrame(channel)))); - } - - if channel == self.channel { - Poll::Ready(Some(Ok(bytes))) - } else if demux.channel_is_active(channel) { - demux.next_frame = Some((channel, bytes)); - // Wake the channel this frame is for while also deregistering its - // waker from the list. - if let Some(waker) = demux.wakers[channel as usize].take() { - waker.wake(); - } - // Before returning `Poll::Pending`, register this channel's waker - // so that other channels can wake it up when it receives a frame. - demux.wakers[self.channel as usize] = Some(cx.waker().clone()); - Poll::Pending - } else { - Poll::Ready(Some(Err(DemultiplexerError::ChannelNotActive(channel)))) - } - } - Some(Err(err)) => { - // Mark the stream as closed when receiving an error from the - // underlying stream. - demux.on_stream_close(); - Poll::Ready(Some(Err(DemultiplexerError::Stream(err)))) - } - None => { - demux.on_stream_close(); - Poll::Ready(None) - } - } - } -} - -#[cfg(test)] -mod tests { - use std::{io::Error as IoError, time::Duration}; - - use crate::testing::{testing_stream::TestingStream, BackgroundTask}; - - use super::*; - use bytes::BytesMut; - use futures::{FutureExt, StreamExt}; - - impl PartialEq for DemultiplexerError { - fn eq(&self, other: &Self) -> bool { - match (self, other) { - (Self::ChannelNotActive(l0), Self::ChannelNotActive(r0)) => l0 == r0, - (Self::ChannelUnavailable(l0), Self::ChannelUnavailable(r0)) => l0 == r0, - (Self::MissingFrame(l0), Self::MissingFrame(r0)) => l0 == r0, - _ => core::mem::discriminant(self) == core::mem::discriminant(other), - } - } - } - - #[test] - fn channel_activation() { - let items: Vec>> = vec![]; - let stream = TestingStream::new(items); - let mut demux = Demultiplexer::new(stream); - - let examples: Vec = (0u8..255u8).collect(); - - for i in examples.iter().copied() { - assert!(!demux.channel_is_active(i)); - demux.activate_channel(i); - assert!(demux.channel_is_active(i)); - } - - for i in examples.iter().copied() { - demux.deactivate_channel(i); - assert!(!demux.channel_is_active(i)); - } - } - - #[test] - fn demultiplexing_two_channels() { - // We demultiplex two channels, 0 and 1 - let items: Vec>> = [ - Bytes::copy_from_slice(&[0, 1, 2, 3, 4]), - Bytes::copy_from_slice(&[0, 4]), - Bytes::copy_from_slice(&[1, 2]), - Bytes::copy_from_slice(&[1, 5]), - ] - .into_iter() - .map(Result::Ok) - .collect(); - let stream = TestingStream::new(items); - let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); - - // We make two handles, one for the 0 channel and another for the 1 channel - let mut zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); - let mut one_handle = Demultiplexer::create_handle::(demux, 1).unwrap(); - - // We know the order that these things have to be awaited, so we can make sure that exactly - // what we expects happens using the `now_or_never` function. - - // First, we expect the zero channel to have a frame. - assert_eq!( - zero_handle - .next() - .now_or_never() - .expect("not ready") - .expect("stream ended") - .expect("item is error") - .as_ref(), - &[1, 2, 3, 4] - ); - - // Next, we expect that the one handle will not have a frame, but it will read off the - // frame ready for the zero value and put it in the next_frame slot. - assert!(one_handle.next().now_or_never().is_none()); - - // It should be safe to call this again, though this time it won't even check the stream - // and will simply notice that the next_frame slot is filled with a frame for a channel - // which isn't 1. - assert!(one_handle.next().now_or_never().is_none()); - - // Then, we receive the message from the zero handle which the one handle left for us. - assert_eq!( - zero_handle - .next() - .now_or_never() - .expect("not ready") - .expect("stream ended") - .expect("item is error") - .as_ref(), - &[4] - ); - - // Then, we pull out the message for the one handle, which hasn't yet been put on the - // stream. - assert_eq!( - one_handle - .next() - .now_or_never() - .expect("not ready") - .expect("stream ended") - .expect("item is error") - .as_ref(), - &[2] - ); - - // Now, we try to pull out a zero message again, filling the next_frame slot for the one - // handle. - assert!(zero_handle.next().now_or_never().is_none()); - - // We take off the final value from the next_frame slot - assert_eq!( - one_handle - .next() - .now_or_never() - .expect("not ready") - .expect("stream ended") - .expect("item is error") - .as_ref(), - &[5] - ); - - // Now, we assert that its safe to call this again with both the one and zero handle, - // ensuring that the [`Fuse`] truly did fuse away the danger from our dangerous - // `TestStream`. - assert!(one_handle.next().now_or_never().unwrap().is_none()); - assert!(zero_handle.next().now_or_never().unwrap().is_none()); - } - - #[test] - fn single_handle_per_channel() { - let stream: TestingStream<()> = TestingStream::new(Vec::new()); - let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); - - // Creating a handle for a channel works. - let _handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); - match Demultiplexer::create_handle::(demux.clone(), 0) { - Err(DemultiplexerError::ChannelUnavailable(0)) => {} - _ => panic!("Channel 0 was available even though we already have a handle to it"), - } - assert!(Demultiplexer::create_handle::(demux, 1).is_ok()); - } - - #[tokio::test] - async fn all_channels_pending_initially_causes_correct_wakeups() { - // Load up a single message for channel 1. - let items: Vec>> = - vec![Ok(Bytes::from_static(&[0x01, 0xFF]))]; - let stream = TestingStream::new(items); - let ctrl = stream.control(); - - ctrl.pause(); - - let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); - - let mut zero_handle = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); - let mut one_handle = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); - - let zero_reader = BackgroundTask::spawn(async move { zero_handle.next().await }); - let one_reader = BackgroundTask::spawn(async move { - let rv = one_handle.next().await; - assert!(one_handle.next().await.is_none()); - rv - }); - - // Sleep for 100 ms to give the background tasks plenty of time to start and block. - tokio::time::sleep(Duration::from_millis(100)).await; - assert!(zero_reader.is_running()); - assert!(one_reader.is_running()); - - // Both should be stuck, since the stream is paused. We can unpause it, wait and - // `one_reader` should be woken up and finish. Shortly after, `zero_reader` will have - // finished as well. - ctrl.unpause(); - tokio::time::sleep(Duration::from_millis(100)).await; - - assert!(zero_reader.has_finished()); - assert!(one_reader.has_finished()); - - assert!(zero_reader.retrieve_output().await.is_none()); - assert!(one_reader.retrieve_output().await.is_some()); - } - - #[tokio::test] - async fn concurrent_channels_on_different_tasks() { - let items: Vec>> = [ - Bytes::copy_from_slice(&[0, 1, 2, 3, 4]), - Bytes::copy_from_slice(&[0, 5, 6]), - Bytes::copy_from_slice(&[1, 101, 102]), - Bytes::copy_from_slice(&[1, 103, 104]), - Bytes::copy_from_slice(&[2, 201, 202]), - Bytes::copy_from_slice(&[0, 7]), - Bytes::copy_from_slice(&[2, 203, 204]), - Bytes::copy_from_slice(&[1, 105]), - ] - .into_iter() - .map(Result::Ok) - .collect(); - let stream = TestingStream::new(items); - let demux = Arc::new(Mutex::new(Demultiplexer::new(stream))); - - let handle_0 = Demultiplexer::create_handle::(demux.clone(), 0).unwrap(); - let handle_1 = Demultiplexer::create_handle::(demux.clone(), 1).unwrap(); - let handle_2 = Demultiplexer::create_handle::(demux.clone(), 2).unwrap(); - - let channel_0_bytes = tokio::spawn(async { - let mut acc = BytesMut::new(); - handle_0 - .for_each(|bytes| { - acc.extend(bytes.unwrap()); - futures::future::ready(()) - }) - .await; - acc.freeze() - }); - let channel_1_bytes = tokio::spawn(async { - let mut acc = BytesMut::new(); - handle_1 - .for_each(|bytes| { - acc.extend(bytes.unwrap()); - futures::future::ready(()) - }) - .await; - acc.freeze() - }); - let channel_2_bytes = tokio::spawn(async { - let mut acc = BytesMut::new(); - handle_2 - .for_each(|bytes| { - acc.extend(bytes.unwrap()); - futures::future::ready(()) - }) - .await; - acc.freeze() - }); - - let (result1, result2, result3) = - tokio::join!(channel_0_bytes, channel_1_bytes, channel_2_bytes,); - assert_eq!(result1.unwrap(), &[1, 2, 3, 4, 5, 6, 7][..]); - assert_eq!(result2.unwrap(), &[101, 102, 103, 104, 105][..]); - assert_eq!(result3.unwrap(), &[201, 202, 203, 204][..]); - } -} diff --git a/muxink/src/fragmented.rs b/muxink/src/fragmented.rs deleted file mode 100644 index bc4184035b..0000000000 --- a/muxink/src/fragmented.rs +++ /dev/null @@ -1,512 +0,0 @@ -//! Splits frames into fragments. -//! -//! # Wire format -//! -//! The wire format for fragments is `NCCC...` where `CCC...` is the fragment's data and `N` is the -//! continuation byte, which is `0x00` if more fragments are following, `0xFF` if this is the -//! frame's last fragment. - -use std::{ - num::NonZeroUsize, - pin::Pin, - task::{Context, Poll}, -}; - -use bytes::{Buf, Bytes, BytesMut}; -use futures::{ready, Sink, SinkExt, Stream, StreamExt}; -use thiserror::Error; - -use crate::{try_ready, ImmediateFrame}; - -/// A fragment to be sent over the write. -/// -/// `SingleFrament` is produced by the `Fragmentizer` and sent to the wrapped stream. It is -/// constructed from the passed in `B: Buf` value, so if `Bytes` is used for the bulk of the data, -/// no copies of the data are made, all fragments refer to the initial buffer being passed in. -pub type SingleFragment = bytes::buf::Chain, Bytes>; - -/// Indicator that more fragments are following. -const MORE_FRAGMENTS: u8 = 0x00; - -/// Final fragment indicator. -const FINAL_FRAGMENT: u8 = 0xFF; - -/// A sink adapter for fragmentation. -/// -/// Any item sent into `Fragmentizer` will be split into `fragment_size` large fragments before -/// being sent. -#[derive(Debug)] -pub struct Fragmentizer { - current_frame: Option, - current_fragment: Option, - sink: S, - fragment_size: NonZeroUsize, -} - -impl Fragmentizer -where - S: Sink + Unpin, - F: Buf, -{ - /// Creates a new fragmentizer with the given fragment size. - pub fn new(fragment_size: NonZeroUsize, sink: S) -> Self { - Fragmentizer { - current_frame: None, - current_fragment: None, - sink, - fragment_size, - } - } - - /// Attempts to finish sending the current frame. - fn flush_current_frame( - &mut self, - cx: &mut Context<'_>, - ) -> Poll>::Error>> { - loop { - if self.current_fragment.is_some() { - // There is fragment data to send, attempt to make progress: - - // First, poll the sink until it is ready to accept another item. - try_ready!(ready!(self.sink.poll_ready_unpin(cx))); - - // Extract the item and push it into the underlying sink. - try_ready!(self - .sink - .start_send_unpin(self.current_fragment.take().unwrap())); - } - - // At this point, `current_fragment` is empty, so we try to create another one. - if let Some(ref mut current_frame) = self.current_frame { - let remaining = current_frame.remaining().min(self.fragment_size.into()); - let fragment_data = current_frame.copy_to_bytes(remaining); - - let continuation_byte: u8 = if current_frame.has_remaining() { - MORE_FRAGMENTS - } else { - // If it is the last fragment, remove the current frame. - self.current_frame = None; - FINAL_FRAGMENT - }; - - self.current_fragment = - Some(ImmediateFrame::from(continuation_byte).chain(fragment_data)); - } else { - // All our fragments are buffered and there are no more fragments to create. - return Poll::Ready(Ok(())); - } - } - } -} - -impl Sink for Fragmentizer -where - F: Buf + Send + Sync + 'static + Unpin, - S: Sink + Unpin, -{ - type Error = >::Error; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - // We will be ready to accept another item once the current one has been flushed fully. - self_mut.flush_current_frame(cx) - } - - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - let self_mut = self.get_mut(); - - debug_assert!(self_mut.current_frame.is_none()); - self_mut.current_frame = Some(item); - - Ok(()) - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - try_ready!(ready!(self_mut.flush_current_frame(cx))); - - // At this point everything has been buffered, so we defer to the underlying sink's flush to - // ensure the final fragment also has been sent. - - self_mut.sink.poll_flush_unpin(cx) - } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - try_ready!(ready!(self_mut.flush_current_frame(cx))); - - self_mut.sink.poll_close_unpin(cx) - } -} - -/// A defragmenting stream adapter. -#[derive(Debug)] -pub struct Defragmentizer { - /// The underyling stream that fragments are read from. - stream: S, - /// Buffer for an unfinished frame. - buffer: BytesMut, - /// The maximum frame size to tolerate. - max_output_frame_size: usize, -} - -impl Defragmentizer { - /// Creates a new defragmentizer. - /// - /// If a received frame assembled from fragments would exceed `max_output_frame_size`, the - /// stream will produce an error. - pub fn new(max_output_frame_size: usize, stream: S) -> Self { - Defragmentizer { - stream, - buffer: BytesMut::new(), - max_output_frame_size, - } - } -} - -/// An error during defragmentation. -#[derive(Debug, Error)] -pub enum DefragmentizerError { - /// A fragment header was sent that is not `MORE_FRAGMENTS` or `FINAL_FRAGMENT`. - #[error( - "received invalid fragment header of {}, expected {} or {}", - 0, - MORE_FRAGMENTS, - FINAL_FRAGMENT - )] - InvalidFragmentHeader(u8), - /// A fragment with a length of zero was received that was not final, which is not allowed to - /// prevent spam with this kind of frame. - #[error("received fragment with zero length that was not final")] - NonFinalZeroLengthFragment, - /// A zero-length fragment (including the envelope) was received, i.e. missing the header. - #[error("missing fragment header")] - MissingFragmentHeader, - /// The incoming stream was closed, with data still in the buffer, missing a final fragment. - #[error("stream closed mid-frame")] - IncompleteFrame, - /// Reading the next fragment would cause the frame to exceed the maximum size. - #[error("would exceed maximum frame size of {max}")] - MaximumFrameSizeExceeded { - /// The configure maximum frame size. - max: usize, - }, - /// An error in the underlying transport stream. - #[error(transparent)] - Io(StreamErr), -} - -impl Stream for Defragmentizer -where - S: Stream> + Unpin, - E: std::error::Error, -{ - type Item = Result>; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - loop { - match ready!(self_mut.stream.poll_next_unpin(cx)) { - Some(Ok(mut next_fragment)) => { - let is_final = match next_fragment.first().cloned() { - Some(MORE_FRAGMENTS) => false, - Some(FINAL_FRAGMENT) => true, - Some(invalid) => { - return Poll::Ready(Some(Err( - DefragmentizerError::InvalidFragmentHeader(invalid), - ))); - } - None => { - return Poll::Ready(Some(Err( - DefragmentizerError::MissingFragmentHeader, - ))) - } - }; - next_fragment.advance(1); - - // We do not allow 0-length continuation frames to prevent DOS attacks. - if next_fragment.is_empty() && !is_final { - return Poll::Ready(Some(Err( - DefragmentizerError::NonFinalZeroLengthFragment, - ))); - } - - // Check if we exceeded the maximum buffer. - if self_mut.buffer.len() + next_fragment.remaining() - > self_mut.max_output_frame_size - { - return Poll::Ready(Some(Err( - DefragmentizerError::MaximumFrameSizeExceeded { - max: self_mut.max_output_frame_size, - }, - ))); - } - - self_mut.buffer.extend(next_fragment); - - if is_final { - let frame = self_mut.buffer.split().freeze(); - return Poll::Ready(Some(Ok(frame))); - } - } - Some(Err(err)) => return Poll::Ready(Some(Err(DefragmentizerError::Io(err)))), - None => { - if self_mut.buffer.is_empty() { - // All good, stream just closed. - return Poll::Ready(None); - } else { - return Poll::Ready(Some(Err(DefragmentizerError::IncompleteFrame))); - } - } - } - } - } -} - -#[cfg(test)] -mod tests { - use std::{convert::Infallible, io, num::NonZeroUsize, sync::Arc}; - - use bytes::{Buf, Bytes}; - use futures::{channel::mpsc, stream, FutureExt, SinkExt, StreamExt}; - - use crate::{ - fragmented::{Defragmentizer, DefragmentizerError}, - testing::testing_sink::TestingSink, - }; - - use super::{Fragmentizer, SingleFragment}; - - const CHANNEL_BUFFER_SIZE: usize = 1000; - - impl PartialEq for DefragmentizerError { - fn eq(&self, other: &Self) -> bool { - match (self, other) { - (Self::InvalidFragmentHeader(l0), Self::InvalidFragmentHeader(r0)) => l0 == r0, - ( - Self::MaximumFrameSizeExceeded { max: l_max }, - Self::MaximumFrameSizeExceeded { max: r_max }, - ) => l_max == r_max, - (Self::Io(_), Self::Io(_)) => true, - _ => core::mem::discriminant(self) == core::mem::discriminant(other), - } - } - } - - /// Builds a sequence of frames that could have been read from the network. - fn build_frame_input(frames: &[&'static [u8]]) -> Vec> { - frames - .iter() - .map(|&x| Bytes::from(x)) - .map(Result::Ok) - .collect() - } - - #[test] - fn fragmenter_basic() { - const FRAGMENT_SIZE: usize = 8; - - let testing_sink = Arc::new(TestingSink::new()); - let mut fragmentizer = Fragmentizer::new( - NonZeroUsize::new(FRAGMENT_SIZE).unwrap(), - testing_sink.clone().into_ref(), - ); - - let frame_data = b"01234567890abcdefghijklmno"; - let frame = Bytes::from(frame_data.to_vec()); - - fragmentizer - .send(frame) - .now_or_never() - .expect("fragmentizer was pending") - .expect("fragmentizer failed"); - - let contents = testing_sink.get_contents(); - assert_eq!(contents, b"\x0001234567\x00890abcde\x00fghijklm\xFFno"); - } - - #[test] - fn defragmentizer_basic() { - let frame_data = b"01234567890abcdefghijklmno"; - let frames = - build_frame_input(&[b"\x0001234567", b"\x00890abcde", b"\x00fghijklm", b"\xFFno"]); - - let defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); - let frames: Vec = defragmentizer - .map(|bytes_result| bytes_result.unwrap()) - .collect() - .now_or_never() - .unwrap(); - assert_eq!(frames.len(), 1); - assert_eq!(frames[0], frame_data.as_slice()); - } - - #[test] - fn fragment_roundtrip() { - const FRAGMENT_SIZE: usize = 8; - let original_frame = b"01234567890abcdefghijklmno"; - let frame_vec = original_frame.to_vec(); - let frame = Bytes::from(frame_vec); - let (sender, receiver) = mpsc::channel::(CHANNEL_BUFFER_SIZE); - - { - let mut fragmentizer = Fragmentizer::new(FRAGMENT_SIZE.try_into().unwrap(), sender); - fragmentizer - .send(frame) - .now_or_never() - .expect("Couldn't send frame") - .unwrap(); - fragmentizer - .flush() - .now_or_never() - .expect("Couldn't flush sender") - .unwrap(); - } - - let receiver = receiver.map(|mut fragment| { - let item: Result> = - Ok(fragment.copy_to_bytes(fragment.remaining())); - item - }); - - let defragmentizer = Defragmentizer::new(original_frame.len(), receiver); - let frames: Vec = defragmentizer - .map(|bytes_result| bytes_result.unwrap()) - .collect() - .now_or_never() - .unwrap(); - assert_eq!(frames.len(), 1); - assert_eq!(frames[0], original_frame.as_slice()); - } - - #[test] - fn defragmentizer_incomplete_frame() { - let frame_data = b"01234567890abcdefghijklmno"; - // Send an incomplete frame with no final fragment. - let frames = build_frame_input(&[b"\x0001234567", b"\x00890abcde"]); - - let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); - // Ensure we don't incorrectly yield a frame. - assert_eq!( - defragmentizer - .next() - .now_or_never() - .unwrap() - .unwrap() - .unwrap_err(), - DefragmentizerError::IncompleteFrame - ); - } - - #[test] - fn defragmentizer_invalid_fragment_header() { - let frame_data = b"01234567890abcdefghijklmno"; - // Insert invalid header '0xAB' into the first fragment. - let frames = - build_frame_input(&[b"\xAB01234567", b"\x00890abcde", b"\x00fghijklm", b"\xFFno"]); - - let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); - assert_eq!( - defragmentizer - .next() - .now_or_never() - .unwrap() - .unwrap() - .unwrap_err(), - DefragmentizerError::InvalidFragmentHeader(0xAB) - ); - } - - #[test] - fn defragmentizer_zero_length_non_final_fragment() { - let frame_data = b"01234567890abcdefghijklmno"; - // Insert an empty, non-final fragment with just the header. - let frames = build_frame_input(&[ - b"\x0001234567", - b"\x00890abcde", - b"\x00fghijklm", - b"\x00", - b"\xFFno", - ]); - - let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); - assert_eq!( - defragmentizer - .next() - .now_or_never() - .unwrap() - .unwrap() - .unwrap_err(), - DefragmentizerError::NonFinalZeroLengthFragment - ); - } - - #[test] - fn defragmentizer_zero_length_final_fragment() { - let frame_data = b"01234567890abcdefghijklm"; - // Insert an empty, final fragment with just the header. This should - // succeed as the requirement to have non-empty fragments only applies - // to non-final fragments. - let frames = - build_frame_input(&[b"\x0001234567", b"\x00890abcde", b"\x00fghijklm", b"\xFF"]); - - let defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); - let frames: Vec = defragmentizer - .map(|bytes_result| bytes_result.unwrap()) - .collect() - .now_or_never() - .unwrap(); - assert_eq!(frames.len(), 1); - assert_eq!(frames[0], frame_data.as_slice()); - } - - #[test] - fn defragmentizer_missing_fragment_header() { - let frame_data = b"01234567890abcdefghijklmno"; - // Insert an empty fragment, not even a header in it. - let frames = build_frame_input(&[ - b"\x0001234567", - b"\x00890abcde", - b"\x00fghijklm", - b"", - b"\xFFno", - ]); - - let mut defragmentizer = Defragmentizer::new(frame_data.len(), stream::iter(frames)); - assert_eq!( - defragmentizer - .next() - .now_or_never() - .unwrap() - .unwrap() - .unwrap_err(), - DefragmentizerError::MissingFragmentHeader - ); - } - - #[test] - fn defragmentizer_max_frame_size_exceeded() { - let frame_data = b"01234567890abcdefghijklmno"; - let frames = - build_frame_input(&[b"\x0001234567", b"\x00890abcde", b"\x00fghijklm", b"\xFFno"]); - - // Initialize the defragmentizer with a max frame length lower than what - // we're trying to send. - let mut defragmentizer = Defragmentizer::new(frame_data.len() - 1, stream::iter(frames)); - // Ensure the data doesn't fit in the frame size limit. - assert_eq!( - defragmentizer - .next() - .now_or_never() - .unwrap() - .unwrap() - .unwrap_err(), - DefragmentizerError::MaximumFrameSizeExceeded { - max: frame_data.len() - 1 - } - ); - } -} diff --git a/muxink/src/framing.rs b/muxink/src/framing.rs deleted file mode 100644 index 15a4dcdfe3..0000000000 --- a/muxink/src/framing.rs +++ /dev/null @@ -1,64 +0,0 @@ -//! Frame encoding/decoding. -//! -//! A frame is a finite unit of bytes to be sent discretely over an underlying networking stream. -//! Usually some sort of framing mechanism needs to be employed to convert from discrete values to -//! continuous bytestreams and back, see the [`FrameEncoder`] and [`FrameDecoder`] traits for -//! details. -//! -//! # Available implementations -//! -//! Currently, the following transcoders and frame decoders are available: -//! -//! * [`length_delimited`]: Transforms byte-like values into self-contained frames with a -//! length-prefix. - -pub mod fixed_size; -pub mod length_delimited; - -use std::fmt::Debug; - -use bytes::{Buf, Bytes, BytesMut}; -use thiserror::Error; - -/// Frame decoder. -/// -/// A frame decoder extracts a frame from a continous bytestream. -pub trait FrameDecoder { - /// Decoding error. - type Error: std::error::Error + Send + Sync + 'static; - - /// Decodes a frame from a buffer. - /// - /// Produces either a frame, an error or an indicator for incompletion. See [`DecodeResult`] for - /// details. - /// - /// Implementers of this function are expected to remove completed frames from `buffer`. - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult; -} - -/// Frame encoder. -/// -/// A frame encoder encodes a frame into a representation suitable for writing to a bytestream. -pub trait FrameEncoder { - /// Encoding error. - type Error: std::error::Error + Send + Sync + 'static; - - /// The output containing an encoded frame. - type Output: Buf + Send; - - /// Encodes a given frame into a sendable representation. - fn encode_frame(&mut self, buffer: T) -> Result; -} - -/// The outcome of a frame decoding operation. -#[derive(Debug, Error)] -pub enum DecodeResult { - /// A complete item was decoded. - Item(T), - /// No frame could be decoded, an unknown amount of bytes is still required. - Incomplete, - /// No frame could be decoded, but the remaining amount of bytes required is known. - Remaining(usize), - /// Irrecoverably failed to decode frame. - Failed(E), -} diff --git a/muxink/src/framing/fixed_size.rs b/muxink/src/framing/fixed_size.rs deleted file mode 100644 index 8575ca921f..0000000000 --- a/muxink/src/framing/fixed_size.rs +++ /dev/null @@ -1,145 +0,0 @@ -/// Length checking pass-through encoder/decoder. -use std::convert::Infallible; - -use bytes::{Buf, Bytes, BytesMut}; -use thiserror::Error; - -/// Fixed-size pass-through encoding/decoding. -use super::{DecodeResult, FrameDecoder, FrameEncoder}; - -/// Fixed size pass-through encoding/decoding. -/// -/// Any frame passed in for encoding is only length checked. Incoming streams are "decoded" by -/// cutting of chunks of the given length. -#[derive(Debug, Default)] -pub struct FixedSize { - /// The size of frames encoded/decoded. - size: usize, -} - -impl FixedSize { - /// Creates a new fixed size encoder. - pub fn new(size: usize) -> Self { - Self { size } - } -} - -/// An encoding error due to a size mismatch. -#[derive(Copy, Clone, Debug, Error)] -#[error("size of frame at {actual} bytes does not match expected size of {expected} bytes")] -pub struct InvalidSizeError { - /// The number of bytes expected (configured on the encoder). - expected: usize, - /// Actual size passed in. - actual: usize, -} - -impl FrameEncoder for FixedSize -where - T: Buf + Send, -{ - type Error = InvalidSizeError; - type Output = T; - - #[inline] - fn encode_frame(&mut self, buffer: T) -> Result { - if buffer.remaining() != self.size { - Err(InvalidSizeError { - expected: self.size, - actual: buffer.remaining(), - }) - } else { - Ok(buffer) - } - } -} - -impl FrameDecoder for FixedSize { - type Error = Infallible; - - #[inline] - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { - if buffer.len() >= self.size { - DecodeResult::Item(buffer.split_to(self.size).freeze()) - } else { - DecodeResult::Remaining(self.size - buffer.len()) - } - } -} - -#[cfg(test)] -mod tests { - use bytes::Bytes; - - use crate::{framing::FrameEncoder, io::FrameReader, testing::collect_stream_results}; - - use super::FixedSize; - - /// Decodes the input string, returning the decoded frames and the remainder. - fn run_decoding_stream( - input: &[u8], - size: usize, - chomp_size: usize, - ) -> (Vec>, Vec) { - let mut reader = FrameReader::new(FixedSize::new(size), input, chomp_size); - - let decoded: Vec<_> = collect_stream_results(&mut reader) - .into_iter() - .map(|bytes| bytes.into_iter().collect::>()) - .collect(); - - // Extract the remaining data. - let (_decoder, remaining_input, buffer) = reader.into_parts(); - let mut remaining = Vec::new(); - remaining.extend(buffer.into_iter()); - remaining.extend(remaining_input); - - (decoded, remaining) - } - - #[test] - fn simple_stream_decoding_works() { - for chomp_size in 1..=1024 { - let input = b"abcdefghi"; - let (decoded, remainder) = run_decoding_stream(input, 3, chomp_size); - assert_eq!(decoded, &[b"abc", b"def", b"ghi"]); - assert!(remainder.is_empty()); - } - } - - #[test] - fn stream_decoding_with_remainder_works() { - for chomp_size in 1..=1024 { - let input = b"abcdefghijk"; - let (decoded, remainder) = run_decoding_stream(input, 3, chomp_size); - assert_eq!(decoded, &[b"abc", b"def", b"ghi"]); - assert_eq!(remainder, b"jk"); - } - } - - #[test] - fn empty_stream_is_empty() { - let input = b""; - - let (decoded, remainder) = run_decoding_stream(input, 3, 5); - assert!(decoded.is_empty()); - assert!(remainder.is_empty()); - } - - #[test] - fn encodes_simple_cases_correctly() { - let seq = &[b"abc", b"def", b"ghi"]; - - for &input in seq.iter() { - let mut input = Bytes::from(input.to_vec()); - let mut codec = FixedSize::new(3); - - let outcome = codec - .encode_frame(&mut input) - .expect("encoding should not fail") - .clone(); - - assert_eq!(outcome, &input); - } - } -} diff --git a/muxink/src/framing/length_delimited.rs b/muxink/src/framing/length_delimited.rs deleted file mode 100644 index 9241c2fce0..0000000000 --- a/muxink/src/framing/length_delimited.rs +++ /dev/null @@ -1,179 +0,0 @@ -//! 2-byte Length delimited frame encoding/decoding. -//! -//! Allows for frames to be at most `u16::MAX` (64 KB) in size. Frames are encoded by prefixing -//! their length in little endian byte order in front of every frame. -//! -//! The module provides an encoder through the [`FrameEncoder`] implementation, and a -//! [`FrameDecoder`] for reading these length delimited frames back from a stream. - -use std::convert::Infallible; - -use bytes::{Buf, Bytes, BytesMut}; -use thiserror::Error; - -use super::{DecodeResult, FrameDecoder, FrameEncoder}; -use crate::ImmediateFrame; - -/// Lenght of the prefix that describes the length of the following frame. -const LENGTH_MARKER_SIZE: usize = (::BITS / 8) as usize; - -/// Two-byte length delimited frame encoder and frame decoder. -#[derive(Debug)] -pub struct LengthDelimited; - -/// The frame type for length prefixed frames. -pub type LengthPrefixedFrame = bytes::buf::Chain, F>; - -impl FrameEncoder for LengthDelimited -where - B: Buf + Send, -{ - type Error = LengthExceededError; - - type Output = LengthPrefixedFrame; - - fn encode_frame(&mut self, buffer: B) -> Result { - let remaining = buffer.remaining(); - let length: u16 = remaining - .try_into() - .map_err(|_err| LengthExceededError(remaining))?; - Ok(ImmediateFrame::from(length).chain(buffer)) - } -} - -impl FrameDecoder for LengthDelimited { - type Error = Infallible; - - fn decode_frame(&mut self, buffer: &mut BytesMut) -> DecodeResult { - let bytes_in_buffer = buffer.remaining(); - if bytes_in_buffer < LENGTH_MARKER_SIZE { - // Note: This is somewhat inefficient, as it results in two read calls per frame - // received, but accurate. It is up to the higher layer to reduce reads. - return DecodeResult::Remaining(LENGTH_MARKER_SIZE - bytes_in_buffer); - } - let data_length = u16::from_le_bytes( - buffer[0..LENGTH_MARKER_SIZE] - .try_into() - .expect("any two bytes should be parseable to u16"), - ) as usize; - - let end = LENGTH_MARKER_SIZE + data_length; - - if bytes_in_buffer < end { - return DecodeResult::Remaining(end - bytes_in_buffer); - } - - let mut full_frame = buffer.split_to(end); - let _ = full_frame.get_u16_le(); - - DecodeResult::Item(full_frame.freeze()) - } -} - -/// A length-based encoding error. -#[derive(Debug, Error)] -#[error("outgoing frame would exceed maximum frame length of 64 KB: {0}")] -pub struct LengthExceededError(usize); - -#[cfg(test)] -mod tests { - use futures::io::Cursor; - - use crate::{ - io::FrameReader, - testing::{collect_stream_results, TESTING_BUFFER_INCREMENT}, - }; - - use super::LengthDelimited; - - /// Decodes the input string, returning the decoded frames and the remainder. - fn run_decoding_stream(input: &[u8]) -> (Vec>, Vec) { - let stream = Cursor::new(input); - - let mut reader = FrameReader::new(LengthDelimited, stream, TESTING_BUFFER_INCREMENT); - - let decoded: Vec<_> = collect_stream_results(&mut reader) - .into_iter() - .map(|bytes| bytes.into_iter().collect::>()) - .collect(); - - // Extract the remaining data. - let (_decoder, cursor, buffer) = reader.into_parts(); - let mut remaining = Vec::new(); - remaining.extend(buffer.into_iter()); - let cursor_pos = cursor.position() as usize; - remaining.extend(&cursor.into_inner()[cursor_pos..]); - - (decoded, remaining) - } - - #[test] - fn produces_fragments_from_stream() { - let input = &b"\x06\x00\x00ABCDE\x06\x00\x00FGHIJ\x03\x00\xffKL\x02\x00\xffM"[..]; - let expected: &[&[u8]] = &[b"\x00ABCDE", b"\x00FGHIJ", b"\xffKL", b"\xffM"]; - - let (decoded, remainder) = run_decoding_stream(input); - - assert_eq!(expected, decoded); - assert!(remainder.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_single_frame() { - let input = b"\x01\x00X"; - - let (decoded, remainder) = run_decoding_stream(input); - assert_eq!(decoded, &[b"X"]); - assert!(remainder.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_empty_buffer() { - let input: &[u8] = b""; - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - assert!(remainder.is_empty()); - } - - #[test] - fn extracts_length_delimited_frame_incomplete_length_in_buffer() { - let input = b"A"; - - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - assert_eq!(remainder, b"A"); - } - - #[test] - fn extracts_length_delimited_frame_incomplete_data_in_buffer() { - let input = b"\xff\xffABCD"; - - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - - assert_eq!(remainder, b"\xff\xffABCD"[..]); - } - - #[test] - fn extracts_length_delimited_frame_only_length_in_buffer() { - let input = b"\xff\xff"; - - let (decoded, remainder) = run_decoding_stream(input); - - assert!(decoded.is_empty()); - assert_eq!(remainder, b"\xff\xff"[..]); - } - - #[test] - fn extracts_length_delimited_frame_max_size() { - let mut input = Vec::from(&b"\xff\xff"[..]); - input.resize(u16::MAX as usize + 2, 50); - let (decoded, remainder) = run_decoding_stream(&input); - - assert_eq!(decoded, &[&input[2..]]); - assert!(remainder.is_empty()); - } -} diff --git a/muxink/src/io.rs b/muxink/src/io.rs deleted file mode 100644 index a11539a2ba..0000000000 --- a/muxink/src/io.rs +++ /dev/null @@ -1,493 +0,0 @@ -//! Frame reading and writing -//! -//! [`FrameReader`]s and [`FrameWriter`]s are responsible for writing a [`bytes::Bytes`] frame to an -//! [`AsyncWrite`] writer, or reading them from [`AsyncRead`] reader. While writing works for any -//! value that implements the [`bytes::Buf`] trait, decoding requires an implementation of the -//! [`FrameDecoder`] trait. - -use std::{ - io, - pin::Pin, - task::{Context, Poll}, -}; - -use bytes::{Buf, Bytes, BytesMut}; -use futures::{ready, AsyncRead, AsyncWrite, Sink, Stream}; - -use crate::{ - framing::{DecodeResult, FrameDecoder, FrameEncoder}, - try_ready, -}; - -/// Reads frames from an underlying reader. -/// -/// Uses the given [`FrameDecoder`] `D` to read frames from the underlying IO. -#[derive(Debug)] -pub struct FrameReader { - /// Decoder used to decode frames. - decoder: D, - /// Underlying async bytestream being read. - stream: R, - /// Internal buffer for incomplete frames. - buffer: BytesMut, - /// Maximum number of bytes to read. - max_read_buffer_increment: usize, -} - -/// Writer for frames. -/// -/// Writes a frame to the underlying writer after encoding it using the given [`FrameEncoder`]. -/// -/// # Cancellation safety -/// -/// The [`Sink`] methods on [`FrameWriter`] are cancellation safe. Only a single item is buffered -/// inside the writer itself. -#[derive(Debug)] -pub struct FrameWriter -where - E: FrameEncoder, -{ - /// The encoder used to encode outgoing frames. - encoder: E, - /// Underlying async bytestream being written. - stream: W, - /// The frame in process of being sent. - current_frame: Option, -} - -impl FrameReader { - /// Creates a new frame reader on a given stream with the given read buffer increment. - pub fn new(decoder: D, stream: R, max_read_buffer_increment: usize) -> Self { - Self { - decoder, - stream, - buffer: BytesMut::new(), - max_read_buffer_increment, - } - } - - /// Deconstructs a frame reader into decoder, reader and buffer. - pub fn into_parts(self) -> (D, R, BytesMut) { - (self.decoder, self.stream, self.buffer) - } -} - -impl Stream for FrameReader -where - D: FrameDecoder + Unpin, - R: AsyncRead + Unpin, -{ - type Item = io::Result; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let FrameReader { - ref mut stream, - ref mut decoder, - ref mut buffer, - max_read_buffer_increment, - } = self.get_mut(); - loop { - let next_read = match decoder.decode_frame(buffer) { - DecodeResult::Item(frame) => return Poll::Ready(Some(Ok(frame))), - DecodeResult::Incomplete => *max_read_buffer_increment, - DecodeResult::Remaining(remaining) => { - // We need to periodically have a completely empty buffer to avoid leaking - // memory, as only a call causing a reallocation will unlink already extracted - // `Bytes` from the shared `BytesMut` buffer. We always trigger this eventually - // by performing a large resize, preferably on an otherwise empty buffer. - - // The additional `.is_empty()` branch allows us to avoid having to _always_ - // perform two `read` calls. We are guaranteed an empty buffer the second time - // around. - - // Overall, it is hard to strike a decent trade-off here between minimizing - // `read` calls, avoiding copies and not being vulnerable to attacks causing - // massive memory allocations. It is possible that a `VecDeque` and more eager - // copying could be a better approach in some situations. - - if buffer.is_empty() { - *max_read_buffer_increment - } else { - remaining.min(*max_read_buffer_increment) - } - } - DecodeResult::Failed(error) => { - return Poll::Ready(Some(Err(io::Error::new(io::ErrorKind::Other, error)))) - } - }; - - let start = buffer.len(); - let end = start + next_read; - buffer.resize(end, 0x00); - - match Pin::new(&mut *stream).poll_read(cx, &mut buffer[start..end]) { - Poll::Ready(Ok(bytes_read)) => { - buffer.truncate(start + bytes_read); - if bytes_read == 0 { - return Poll::Ready(None); - } - } - Poll::Ready(Err(err)) => return Poll::Ready(Some(Err(err))), - Poll::Pending => { - buffer.truncate(start); - return Poll::Pending; - } - } - } - } -} - -impl FrameWriter -where - E: FrameEncoder, - >::Output: Buf, -{ - /// Creates a new frame writer with the given encoder. - pub fn new(encoder: E, stream: W) -> Self { - Self { - encoder, - stream, - current_frame: None, - } - } - - pub fn finish_sending(&mut self, cx: &mut Context<'_>) -> Poll> - where - Self: Sink + Unpin, - W: AsyncWrite + Unpin, - { - loop { - match self.current_frame { - // No more frame to send, we're ready. - None => return Poll::Ready(Ok(())), - - Some(ref mut current_frame) => { - // TODO: Implement support for `poll_write_vectored`. - - let stream_pin = Pin::new(&mut self.stream); - match stream_pin.poll_write(cx, current_frame.chunk()) { - Poll::Ready(Ok(bytes_written)) => { - current_frame.advance(bytes_written); - - // If we're done, clear the current frame and return. - if !current_frame.has_remaining() { - self.current_frame.take(); - return Poll::Ready(Ok(())); - } - - // Otherwise, repeat the loop. - } - // Error occured, we have to abort. - Poll::Ready(Err(error)) => { - return Poll::Ready(Err(error)); - } - // The underlying output stream is blocked, no progress can be made. - Poll::Pending => return Poll::Pending, - } - } - } - } - } -} - -impl Sink for FrameWriter -where - Self: Unpin, - E: FrameEncoder, - >::Output: Buf, - W: AsyncWrite + Unpin, -{ - type Error = io::Error; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - try_ready!(ready!(self_mut.finish_sending(cx))); - - // Even though there may be outstanding writes on the underlying stream, our item buffer is - // empty, so we are ready to accept the next item. - Poll::Ready(Ok(())) - } - - fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - let wrapped_frame = self - .encoder - .encode_frame(item) - .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?; - self.current_frame = Some(wrapped_frame); - - // We could eaglerly poll and send to the underlying writer here, but for ease of - // implementation we don't. - - Ok(()) - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - // We need to make sure all data is buffered to the underlying stream first. - try_ready!(ready!(self_mut.finish_sending(cx))); - - // Finally it makes sense to flush. - let wpin = Pin::new(&mut self_mut.stream); - wpin.poll_flush(cx) - } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - - // Finish buffering our outstanding item. - try_ready!(ready!(self_mut.finish_sending(cx))); - - let wpin = Pin::new(&mut self_mut.stream); - wpin.poll_close(cx) - } -} - -#[cfg(test)] -mod tests { - use std::pin::Pin; - - use bytes::Bytes; - use futures::{ - io::Cursor, sink::SinkExt, stream::StreamExt, AsyncRead, AsyncReadExt, AsyncWriteExt, - FutureExt, - }; - use tokio::io::DuplexStream; - use tokio_util::compat::{Compat, TokioAsyncReadCompatExt}; - - use super::{FrameReader, FrameWriter}; - use crate::framing::length_delimited::LengthDelimited; - - /// Async reader used by a test below to gather all underlying - /// read calls and their results. - struct AsyncReadCounter { - stream: S, - reads: Vec, - } - - impl AsyncReadCounter { - pub fn new(stream: S) -> Self { - Self { - stream, - reads: vec![], - } - } - - pub fn reads(&self) -> &[usize] { - &self.reads - } - } - - impl AsyncRead for AsyncReadCounter { - fn poll_read( - mut self: std::pin::Pin<&mut Self>, - cx: &mut std::task::Context<'_>, - buf: &mut [u8], - ) -> std::task::Poll> { - let read_result = Pin::new(&mut self.stream).poll_read(cx, buf); - if let std::task::Poll::Ready(Ok(len)) = read_result { - self.reads.push(len); - } - read_result - } - } - - /// A basic integration test for sending data across an actual TCP stream. - #[tokio::test] - async fn simple_tcp_send_recv() { - let server = tokio::net::TcpListener::bind("127.0.0.1:0") - .await - .expect("could not bind"); - let server_addr = server.local_addr().expect("no local addr"); - let frame_to_send = b"asdf12345asdf"; - - let server_handle = tokio::spawn(async move { - let (incoming, _client_peer_addr) = server - .accept() - .await - .expect("could not accept connection on server side"); - - let mut frame_reader = FrameReader::new(LengthDelimited, incoming.compat(), 32); - let outcome = frame_reader - .next() - .await - .expect("closed unexpectedly") - .expect("receive failed"); - - assert_eq!(&outcome.to_vec(), frame_to_send); - }); - - let client = tokio::net::TcpStream::connect(server_addr) - .await - .expect("failed to connect"); - let mut frame_writer = FrameWriter::new(LengthDelimited, client.compat()); - frame_writer - .send(Bytes::from(&frame_to_send[..])) - .await - .expect("could not sendn data"); - - server_handle.await.expect("joining failed"); - } - - #[test] - fn frame_reader_reads_without_consuming_extra_bytes() { - const FRAME: &[u8; 16] = b"abcdef0123456789"; - const COPIED_FRAME_LEN: u16 = 8; - let mut encoded_longer_frame = COPIED_FRAME_LEN.to_le_bytes().to_vec(); - encoded_longer_frame.extend_from_slice(FRAME.as_slice()); - - let cursor = Cursor::new(encoded_longer_frame.as_slice()); - let mut reader = FrameReader::new(LengthDelimited, cursor, 1000); - - let first_frame = reader.next().now_or_never().unwrap().unwrap().unwrap(); - assert_eq!(&first_frame, &FRAME[..COPIED_FRAME_LEN as usize]); - - let (_, mut cursor, mut buffer) = reader.into_parts(); - let mut unread_cursor_buf = vec![]; - let unread_cursor_len = cursor - .read_to_end(&mut unread_cursor_buf) - .now_or_never() - .unwrap() - .unwrap(); - buffer.extend_from_slice(&unread_cursor_buf[..unread_cursor_len]); - assert_eq!(&buffer, &FRAME[COPIED_FRAME_LEN as usize..]); - } - - #[test] - fn frame_reader_does_not_allow_exceeding_maximum_size() { - const FRAME: &[u8; 16] = b"abcdef0123456789"; - const COPIED_FRAME_LEN: u16 = 16; - const MAX_READ_BUF_INCREMENT: usize = 5; - let mut encoded_longer_frame = COPIED_FRAME_LEN.to_le_bytes().to_vec(); - encoded_longer_frame.extend_from_slice(FRAME.as_slice()); - - let cursor = AsyncReadCounter::new(Cursor::new(encoded_longer_frame.as_slice())); - let mut reader = FrameReader::new(LengthDelimited, cursor, MAX_READ_BUF_INCREMENT); - - let first_frame = reader.next().now_or_never().unwrap().unwrap().unwrap(); - assert_eq!(&first_frame, &FRAME[..COPIED_FRAME_LEN as usize]); - - let (_, counter, _) = reader.into_parts(); - // Considering we have a `max_read_buffer_increment` of 5, the encoded length - // is a `u16`, `sizeof(u16)` is 2, and the length of the original frame is 16, - // reads should be: - // [2 + (5 - 2), 5, 5, 5 - 2] - assert_eq!( - counter.reads(), - [ - MAX_READ_BUF_INCREMENT, - MAX_READ_BUF_INCREMENT, - MAX_READ_BUF_INCREMENT, - MAX_READ_BUF_INCREMENT - (::BITS / 8) as usize - ] - ); - } - - #[tokio::test] - async fn frame_reader_handles_0_sized_read() { - const FRAME: &[u8; 16] = b"abcdef0123456789"; - const COPIED_FRAME_LEN: u16 = 16; - const MAX_READ_BUF_INCREMENT: usize = 6; - let mut encoded_longer_frame = COPIED_FRAME_LEN.to_le_bytes().to_vec(); - encoded_longer_frame.extend_from_slice(FRAME.as_slice()); - - let (sender, receiver) = tokio::io::duplex(1000); - let mut reader = FrameReader::new( - LengthDelimited, - receiver.compat(), - (COPIED_FRAME_LEN >> 1).into(), - ); - - // We drop the sender at the end of the async block in order to simulate - // a 0-sized read. - let send_fut = async move { - sender - .compat() - .write_all(&encoded_longer_frame[..MAX_READ_BUF_INCREMENT]) - .await - .unwrap(); - }; - let recv_fut = async { reader.next().await }; - let (_, received) = tokio::join!(send_fut, recv_fut); - assert!(received.is_none()); - } - - #[tokio::test] - async fn frame_reader_handles_early_eof() { - const FRAME: &[u8; 16] = b"abcdef0123456789"; - const COPIED_FRAME_LEN: u16 = 16; - let mut encoded_longer_frame = (COPIED_FRAME_LEN + 1).to_le_bytes().to_vec(); - encoded_longer_frame.extend_from_slice(FRAME.as_slice()); - - let cursor = Cursor::new(encoded_longer_frame.as_slice()); - let mut reader = FrameReader::new(LengthDelimited, cursor, 1000); - - assert!(reader.next().await.is_none()); - } - - #[test] - fn frame_writer_writes_frames_correctly() { - const FIRST_FRAME: &[u8; 16] = b"abcdef0123456789"; - const SECOND_FRAME: &[u8; 9] = b"dead_beef"; - - let mut frame_writer: FrameWriter> = - FrameWriter::new(LengthDelimited, Vec::new()); - frame_writer - .send((&FIRST_FRAME[..]).into()) - .now_or_never() - .unwrap() - .unwrap(); - let FrameWriter { - encoder: _, - stream, - current_frame: _, - } = &frame_writer; - let mut encoded_longer_frame = (FIRST_FRAME.len() as u16).to_le_bytes().to_vec(); - encoded_longer_frame.extend_from_slice(FIRST_FRAME.as_slice()); - assert_eq!(stream.as_slice(), encoded_longer_frame); - - frame_writer - .send((&SECOND_FRAME[..]).into()) - .now_or_never() - .unwrap() - .unwrap(); - let FrameWriter { - encoder: _, - stream, - current_frame: _, - } = &frame_writer; - encoded_longer_frame - .extend_from_slice((SECOND_FRAME.len() as u16).to_le_bytes().as_slice()); - encoded_longer_frame.extend_from_slice(SECOND_FRAME.as_slice()); - assert_eq!(stream.as_slice(), encoded_longer_frame); - } - - #[tokio::test] - async fn frame_writer_handles_0_size() { - const FRAME: &[u8; 16] = b"abcdef0123456789"; - - let (sender, receiver) = tokio::io::duplex(1000); - let mut frame_writer: FrameWriter> = - FrameWriter::new(LengthDelimited, sender.compat()); - // Send a first frame. - frame_writer.send((&FRAME[..]).into()).await.unwrap(); - - // Send an empty frame. - // We drop the sender at the end of the async block to mark the end of - // the stream. - let send_fut = async move { frame_writer.send(Bytes::new()).await.unwrap() }; - - let recv_fut = async { - let mut buf = Vec::new(); - receiver.compat().read_to_end(&mut buf).await.unwrap(); - buf - }; - - let (_, received) = tokio::join!(send_fut, recv_fut); - assert_eq!( - &received[FRAME.len() + (::BITS / 8) as usize..], - 0u16.to_le_bytes() - ); - } -} diff --git a/muxink/src/lib.rs b/muxink/src/lib.rs deleted file mode 100644 index d41e6a332f..0000000000 --- a/muxink/src/lib.rs +++ /dev/null @@ -1,113 +0,0 @@ -//! Asynchronous multiplexing. -//! -//! The `muxink` crate allows building complex stream setups that multiplex, fragment, encode and -//! backpressure messages sent across asynchronous streams. -//! -//! # How to get started -//! -//! At the lowest level, the [`io::FrameReader`] and [`io::FrameWriter`] wrappers provide -//! [`Sink`](futures::Sink) and [`Stream`](futures::Stream) implementations on top of -//! [`AsyncRead`](futures::AsyncRead) and [`AsyncWrite`](futures::AsyncWrite) implementing types. -//! These can then be wrapped with any of types [`mux`]/[`demux`], [`fragmented`] or -//! [`backpressured`] to layer functionality on top. -//! -//! # Cancellation safety -//! -//! All streams and sinks constructed by combining types from this crate at least uphold the -//! following invariants: -//! -//! * [`SinkExt::send`](futures::SinkExt::send), [`SinkExt::send_all`](futures::SinkExt::send_all): -//! Safe to cancel, although no guarantees are made whether an item was actually sent -- if the -//! sink was still busy, it may not have been moved into the sink. The underlying stream will be -//! left in a consistent state regardless. -//! * [`SinkExt::flush`](futures::SinkExt::flush): Safe to cancel. -//! * [`StreamExt::next`](futures::StreamExt::next): Safe to cancel. Cancelling it will not cause -//! items to be lost upon construction of another [`next`](futures::StreamExt::next) future. - -pub mod backpressured; -pub mod demux; -pub mod fragmented; -pub mod framing; -pub mod io; -pub mod little_endian; -pub mod mux; -#[cfg(any(test, feature = "testing"))] -pub mod testing; - -use bytes::Buf; - -/// Helper macro for returning a `Poll::Ready(Err)` eagerly. -/// -/// Can be remove once `Try` is stabilized for `Poll`. -#[macro_export] -macro_rules! try_ready { - ($ex:expr) => { - match $ex { - Err(e) => return Poll::Ready(Err(e.into())), - Ok(v) => v, - } - }; -} - -/// A frame for stack allocated data. -#[derive(Debug)] -pub struct ImmediateFrame { - /// How much of the frame has been read. - pos: usize, - /// The actual value contained. - value: A, -} - -impl ImmediateFrame { - #[inline] - pub fn new(value: A) -> Self { - Self { pos: 0, value } - } -} - -/// Implements conversion functions to immediate types for atomics like `u8`, etc. -macro_rules! impl_immediate_frame_le { - ($frame_type_name:ident, $t:ty) => { - pub type $frame_type_name = ImmediateFrame<[u8; (<$t>::BITS / 8) as usize]>; - - impl From<$t> for $frame_type_name { - #[inline] - fn from(value: $t) -> Self { - ImmediateFrame::new(value.to_le_bytes()) - } - } - }; -} - -impl_immediate_frame_le!(ImmediateFrameU8, u8); -impl_immediate_frame_le!(ImmediateFrameU16, u16); -impl_immediate_frame_le!(ImmediateFrameU32, u32); -impl_immediate_frame_le!(ImmediateFrameU64, u64); -impl_immediate_frame_le!(ImmediateFrameU128, u128); -impl_immediate_frame_le!(ImmediateFrameI8, i8); -impl_immediate_frame_le!(ImmediateFrameI16, i16); -impl_immediate_frame_le!(ImmediateFrameI32, i32); -impl_immediate_frame_le!(ImmediateFrameI64, i64); -impl_immediate_frame_le!(ImmediateFrameI128, i128); - -impl Buf for ImmediateFrame -where - A: AsRef<[u8]>, -{ - fn remaining(&self) -> usize { - // Does not overflow, as `pos` is `< .len()`. - - self.value.as_ref().len() - self.pos - } - - fn chunk(&self) -> &[u8] { - // Safe access, as `pos` is guaranteed to be `< .len()`. - &self.value.as_ref()[self.pos..] - } - - fn advance(&mut self, cnt: usize) { - // This is the only function modifying `pos`, upholding the invariant of it being smaller - // than the length of the data we have. - self.pos = (self.pos + cnt).min(self.value.as_ref().len()); - } -} diff --git a/muxink/src/little_endian.rs b/muxink/src/little_endian.rs deleted file mode 100644 index bb0d981a94..0000000000 --- a/muxink/src/little_endian.rs +++ /dev/null @@ -1,215 +0,0 @@ -/// Little-endian integer codec. -use std::{ - marker::PhantomData, - pin::Pin, - task::{Context, Poll}, -}; - -use bytes::Bytes; -use futures::{Sink, SinkExt, Stream, StreamExt}; -use thiserror::Error; - -/// Little endian integer codec. -/// -/// Integers encoded or decoded through this sink/stream wrapper are encoded/decoded as little -/// endian integers (via `ImmediateFrame` when encoding) before being forwarded to the underlying -/// sink/stream. -/// -/// This data structure implements either `Stream` or `Sink`, depending on the wrapped `S`. -#[derive(Debug)] -pub struct LittleEndian { - inner: S, - /// Phantom data pinning the accepted type. - /// - /// While an encoder would not need to restrict `T`, it still is limited to a single type for - /// type safety. - _type_pin: PhantomData, -} - -impl LittleEndian { - /// Creates a new little endian sink/stream. - pub fn new(inner: S) -> Self { - LittleEndian { - inner, - _type_pin: PhantomData, - } - } - - /// Returns the wrapped stream. - pub fn into_inner(self) -> S { - self.inner - } -} - -/// Decoding error for little endian decoding stream. -#[derive(Debug, Error)] -pub enum DecodeError -where - E: std::error::Error, -{ - /// The incoming `Bytes` object was of the wrong size. - #[error("Size mismatch, expected {expected} bytes, got {actual}")] - SizeMismatch { expected: usize, actual: usize }, - /// The wrapped stream returned an error. - #[error(transparent)] - Stream(#[from] E), -} - -macro_rules! int_codec { - ($ty:ty) => { - impl Sink<$ty> for LittleEndian<$ty, S> - where - S: Sink::BITS / 8) as usize]>> + Unpin, - { - type Error = - ::BITS / 8) as usize]>>>::Error; - - #[inline] - fn poll_ready( - mut self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.as_mut().inner.poll_ready_unpin(cx) - } - - #[inline] - fn start_send(mut self: Pin<&mut Self>, item: $ty) -> Result<(), Self::Error> { - let frame = crate::ImmediateFrame::<[u8; (<$ty>::BITS / 8) as usize]>::from(item); - self.as_mut().inner.start_send_unpin(frame) - } - - #[inline] - fn poll_flush( - mut self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.as_mut().inner.poll_flush_unpin(cx) - } - - #[inline] - fn poll_close( - mut self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.as_mut().inner.poll_close_unpin(cx) - } - } - - impl Stream for LittleEndian<$ty, S> - where - S: Stream> + Unpin, - E: std::error::Error, - { - type Item = Result<$ty, DecodeError>; - - fn poll_next( - mut self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - let raw_result = futures::ready!(self.as_mut().inner.poll_next_unpin(cx)); - - let raw_item = match raw_result { - None => return Poll::Ready(None), - Some(Err(e)) => return Poll::Ready(Some(Err(DecodeError::Stream(e)))), - Some(Ok(v)) => v, - }; - - let bytes_le: [u8; (<$ty>::BITS / 8) as usize] = match (&*raw_item).try_into() { - Ok(v) => v, - Err(_) => { - return Poll::Ready(Some(Err(DecodeError::SizeMismatch { - expected: (<$ty>::BITS / 8) as usize, - actual: raw_item.len(), - }))) - } - }; - Poll::Ready(Some(Ok(<$ty>::from_le_bytes(bytes_le)))) - } - - fn size_hint(&self) -> (usize, Option) { - self.inner.size_hint() - } - } - }; -} - -// Implement for known integer types. -int_codec!(u16); -int_codec!(u32); -int_codec!(u64); -int_codec!(u128); -int_codec!(i16); -int_codec!(i32); -int_codec!(i64); -int_codec!(i128); - -#[cfg(test)] -mod tests { - use futures::{io::Cursor, FutureExt, SinkExt}; - - use crate::{ - framing::fixed_size::FixedSize, - io::{FrameReader, FrameWriter}, - testing::collect_stream_results, - ImmediateFrameU32, - }; - - use super::LittleEndian; - - /// Decodes the input string, returning the decoded frames and the remainder. - fn run_decoding_stream(input: &[u8], chomp_size: usize) -> (Vec, Vec) { - let stream = Cursor::new(input); - - let mut reader = - LittleEndian::::new(FrameReader::new(FixedSize::new(4), stream, chomp_size)); - - let decoded: Vec = collect_stream_results(&mut reader); - - // Extract the remaining data. - let (_decoder, cursor, buffer) = reader.into_inner().into_parts(); - let mut remaining = Vec::new(); - remaining.extend(buffer.into_iter()); - let cursor_pos = cursor.position() as usize; - remaining.extend(&cursor.into_inner()[cursor_pos..]); - - (decoded, remaining) - } - - #[test] - fn simple_stream_decoding_works() { - for chomp_size in 1..=1024 { - let input = b"\x01\x02\x03\x04\xAA\xBB\xCC\xDD"; - let (decoded, remainder) = run_decoding_stream(input, chomp_size); - assert_eq!(decoded, &[0x04030201, 0xDDCCBBAA]); - assert!(remainder.is_empty()); - } - } - - #[test] - fn empty_stream_is_empty() { - let input = b""; - - let (decoded, remainder) = run_decoding_stream(input, 3); - assert!(decoded.is_empty()); - assert!(remainder.is_empty()); - } - - #[test] - fn encodes_simple_cases_correctly() { - let seq = [0x01020304u32, 0xAABBCCDD]; - let outcomes: &[&[u8]] = &[b"\x04\x03\x02\x01", b"\xDD\xCC\xBB\xAA"]; - - for (input, &expected) in seq.into_iter().zip(outcomes.iter()) { - let mut output: Vec = Vec::new(); - let mut writer = LittleEndian::::new( - FrameWriter::::new(FixedSize::new(4), &mut output), - ); - writer - .send(input) - .now_or_never() - .expect("send did not finish") - .expect("sending should not fail"); - assert_eq!(&output, expected); - } - } -} diff --git a/muxink/src/mux.rs b/muxink/src/mux.rs deleted file mode 100644 index 0e70d1eca6..0000000000 --- a/muxink/src/mux.rs +++ /dev/null @@ -1,480 +0,0 @@ -//! Stream multiplexing -//! -//! Multiplexes multiple sinks into a single one, without buffering any items. Up to 256 channels -//! are supported, each item sent on a specific channel will be forwarded with a 1-byte prefix -//! indicating the channel. -//! -//! ## Fairness -//! -//! Multiplexing is fair per handle, that is every handle is eventually guaranteed to receive a slot -//! for sending on the underlying sink. Under maximal contention, every `MultiplexerHandle` will -//! receive `1/n` of the slots, with `n` being the total number of multiplexers, with no handle -//! being able to send more than twice without all other waiting handles receiving a slot. -//! -//! ## Locking -//! -//! Sending and flushing an item each requires a separate lock acquisition, as the lock is released -//! after each `start_send` operation. This in turn means that a [`SinkExt::send_all`] call will not -//! hold the underlying output sink hostage until all items are send. - -use std::{ - pin::Pin, - sync::{ - atomic::{AtomicUsize, Ordering}, - Arc, - }, - task::{Context, Poll}, -}; - -use bytes::Buf; -use futures::{ready, FutureExt, Sink, SinkExt}; -use thiserror::Error; -use tokio::sync::{Mutex, OwnedMutexGuard}; -use tokio_util::sync::ReusableBoxFuture; - -use crate::{try_ready, ImmediateFrame}; - -pub type ChannelPrefixedFrame = bytes::buf::Chain, F>; - -/// A frame multiplexer. -/// -/// A multiplexer is not used directly, but used to spawn multiplexing handles. -#[derive(Debug)] -pub struct Multiplexer { - /// The shared sink for output. - sink: Arc>>, -} - -impl Multiplexer { - /// Creates a new multiplexer with the given sink. - pub fn new(sink: S) -> Self { - Self { - sink: Arc::new(Mutex::new(Some(sink))), - } - } - - /// Create a handle for a specific multiplexer channel on this multiplexer. - /// - /// Any item sent via this handle's `Sink` implementation will be sent on the given channel by - /// prefixing with the channel identifier (see module documentation). - /// - /// It is valid to have multiple handles for the same channel. - /// - /// # Correctness and cancellation safety - /// - /// Since a handle may hold a lock on the shared sink, additional invariants that must be upheld - /// by the calling tasks: - /// - /// * Every call to `Sink::poll_ready` returning `Poll::Pending` **must** be repeated until - /// `Poll::Ready` is returned or followed by a drop of the handle. - /// * Every call to `Sink::poll_ready` returning `Poll::Ready` **must** be followed by a call to - /// `Sink::start_send` or a drop of the handle. - /// * Every call to `Sink::poll_flush` returning `Poll::Pending` must be repeated until - /// `Poll::Ready` is returned or followed by a drop of the handle. - /// * Every call to `Sink::poll_close` returning `Poll::Pending` must be repeated until - /// `Poll::Ready` is returned or followed by a drop of the handle. - /// - /// As a result **the `SinkExt::send`, `SinkExt::send_all`, `SinkExt::flush` and - /// `SinkExt::close` methods of any chain of sinks involving a `Multiplexer` is not cancellation - /// safe**. - pub fn create_channel_handle(&self, channel: u8) -> MultiplexerHandle - where - S: Send + 'static, - { - MultiplexerHandle { - sink: self.sink.clone(), - send_count: Arc::new(AtomicUsize::new(0)), - channel, - lock_future: ReusableBoxFuture::new(mk_lock_future(self.sink.clone())), - sink_guard: None, - highest_flush: Arc::new(AtomicUsize::new(0)), - last_send: None, - } - } - - /// Deconstructs the multiplexer into its sink. - /// - /// This function will block until outstanding writes to the underlying sink have completed. Any - /// handle to this multiplexer will be closed afterwards. - pub fn into_inner(self) -> S { - self.sink - .blocking_lock() - .take() - // This function is the only one ever taking out of the `Option` and it consumes the - // only `Multiplexer`, thus we can always expect a `Some` value here. - .expect("did not expect sink to be missing") - } -} - -/// A multiplexing error. -#[derive(Debug, Error)] -pub enum MultiplexerError -where - E: std::error::Error, -{ - /// The multiplexer was closed, while a handle tried to access it. - #[error("Multiplexer closed")] - MultiplexerClosed, - /// The wrapped sink returned an error. - #[error(transparent)] - Sink(#[from] E), -} - -/// A guard of a protected sink. -type SinkGuard = OwnedMutexGuard>; - -/// Helper function to create a locking future. -/// -/// It is important to always return a same-sized future when replacing futures using -/// `ReusableBoxFuture`. For this reason, lock futures are only ever created through this helper -/// function. -fn mk_lock_future( - sink: Arc>>, -) -> impl futures::Future>> { - sink.lock_owned() -} - -/// A handle to a multiplexer. -/// -/// A handle is bound to a specific channel, see [`Multiplexer::create_channel_handle`] for details. -/// -/// Closing a handle will close the underlying multiplexer stream. To only "close" a specific -/// channel, flush the handle and drop it. -pub struct MultiplexerHandle { - /// The sink shared across the multiplexer and all its handles. - sink: Arc>>, - /// The number of items sent to the underlying sink. - send_count: Arc, - /// Highest `send_count` that has been flushed. - highest_flush: Arc, - /// The send count at which our last enqueued data was sent. - last_send: Option, - /// Channel ID assigned to this handle. - channel: u8, - /// The future locking the shared sink. - // Note: To avoid frequent heap allocations, a single box is reused for every lock this handle - // needs to acquire, which is on every sending of an item via `Sink`. - // - // This relies on the fact that merely instantiating the locking future (via - // `mk_lock_future`) will not do anything before the first poll (see - // `tests::ensure_creating_lock_acquisition_future_is_side_effect_free`). - lock_future: ReusableBoxFuture<'static, SinkGuard>, - /// A potential acquired guard for the underlying sink. - /// - /// Proper acquisition and dropping of the guard is dependent on callers obeying the sink - /// protocol and the invariants specified in the [`Multiplexer::create_channel_handle`] - /// documentation. - /// - /// A [`Poll::Ready`] return value from either `poll_flush` or `poll_close` or a call to - /// `start_send` will release the guard. - sink_guard: Option>, -} - -impl MultiplexerHandle -where - S: Send + 'static, -{ - /// Acquire or return a guard on the sink lock. - /// - /// Helper function for lock acquisition: - /// - /// * If the lock is already obtained, returns `Ready(guard)`. - /// * If the lock has not been obtained, attempts to poll the locking future, either returning - /// `Pending` or `Ready(guard)`. - fn acquire_lock(&mut self, cx: &mut Context<'_>) -> Poll<&mut SinkGuard> { - let sink_guard = match self.sink_guard { - None => { - // We do not hold the guard at the moment, so attempt to acquire it. - match self.lock_future.poll_unpin(cx) { - Poll::Ready(guard) => { - // It is our turn: Save the guard and prepare another locking future for - // later, which will not attempt to lock until first polled. - let sink = self.sink.clone(); - self.lock_future.set(mk_lock_future(sink)); - self.sink_guard.insert(guard) - } - Poll::Pending => { - // The lock could not be acquired yet. - return Poll::Pending; - } - } - } - Some(ref mut guard) => guard, - }; - Poll::Ready(sink_guard) - } -} - -impl Sink for MultiplexerHandle -where - S: Sink> + Unpin + Send + 'static, - F: Buf, - >>::Error: std::error::Error, -{ - type Error = MultiplexerError<>>::Error>; - - fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let sink_guard = ready!(self.acquire_lock(cx)); - - // We have acquired the lock, now our job is to wait for the sink to become ready. - try_ready!(sink_guard - .as_mut() - .ok_or(MultiplexerError::MultiplexerClosed)) - .poll_ready_unpin(cx) - .map_err(MultiplexerError::Sink) - } - - fn start_send(mut self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - let prefixed = ImmediateFrame::from(self.channel).chain(item); - - // We take the guard here, so that early exits due to errors will free the lock. - let mut guard = match self.sink_guard.take() { - Some(guard) => guard, - None => { - panic!("protocol violation - `start_send` called before `poll_ready`"); - } - }; - - let sink = match guard.as_mut() { - Some(sink) => sink, - None => { - return Err(MultiplexerError::MultiplexerClosed); - } - }; - - sink.start_send_unpin(prefixed) - .map_err(MultiplexerError::Sink)?; - - // Item is enqueued, increase the send count. - let last_send = self.send_count.fetch_add(1, Ordering::SeqCst) + 1; - self.last_send = Some(last_send); - - Ok(()) - } - - fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - // Check if our last message was already flushed, this saves us some needless locking. - let last_send = if let Some(last_send) = self.last_send { - if self.highest_flush.load(Ordering::SeqCst) >= last_send { - // Someone else flushed the sink for us. - self.last_send = None; - self.sink_guard.take(); - return Poll::Ready(Ok(())); - } - - last_send - } else { - // There was no data that we are waiting to flush still. - self.sink_guard.take(); - return Poll::Ready(Ok(())); - }; - - // At this point we know that we have to flush, and for that we need the lock. - let sink_guard = ready!(self.acquire_lock(cx)); - - let outcome = match sink_guard.as_mut() { - Some(sink) => { - // We have the lock, so try to flush. - ready!(sink.poll_flush_unpin(cx)) - } - None => { - self.sink_guard.take(); - return Poll::Ready(Err(MultiplexerError::MultiplexerClosed)); - } - }; - - if outcome.is_ok() { - self.highest_flush.fetch_max(last_send, Ordering::SeqCst); - self.last_send.take(); - } - - // Release lock. - self.sink_guard.take(); - - Poll::Ready(outcome.map_err(MultiplexerError::Sink)) - } - - fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let sink_guard = ready!(self.acquire_lock(cx)); - - let outcome = match sink_guard.as_mut() { - Some(sink) => { - ready!(sink.poll_close_unpin(cx)) - } - None => { - // Closing an underlying closed multiplexer has no effect. - self.sink_guard.take(); - return Poll::Ready(Ok(())); - } - }; - - // Release lock. - self.sink_guard.take(); - - Poll::Ready(outcome.map_err(MultiplexerError::Sink)) - } -} - -#[cfg(test)] -mod tests { - use std::sync::Arc; - - use bytes::Bytes; - use futures::{FutureExt, SinkExt}; - use tokio::sync::Mutex; - - use crate::testing::{collect_bufs, testing_sink::TestingSink}; - - use super::{ChannelPrefixedFrame, Multiplexer, MultiplexerError}; - - #[test] - fn ensure_creating_lock_acquisition_future_is_side_effect_free() { - // This test ensures an assumed property in the multiplexer's sink implementation, namely - // that calling the `.lock_owned()` function does not affect the lock before being polled. - - let mutex: Arc> = Arc::new(Mutex::new(())); - - // Instantiate a locking future without polling it. - let lock_fut = mutex.clone().lock_owned(); - - // Creates a second locking future, which we will poll immediately. It should return ready. - assert!(mutex.lock_owned().now_or_never().is_some()); - - // To prove that the first one also worked, poll it as well. - assert!(lock_fut.now_or_never().is_some()); - } - - #[test] - fn mux_lifecycle() { - let output: Vec> = Vec::new(); - let muxer = Multiplexer::new(output); - - let mut chan_0 = muxer.create_channel_handle(0); - let mut chan_1 = muxer.create_channel_handle(1); - - assert!(chan_1 - .send(Bytes::from(&b"Hello"[..])) - .now_or_never() - .is_some()); - assert!(chan_0 - .send(Bytes::from(&b"World"[..])) - .now_or_never() - .is_some()); - - let output = collect_bufs(muxer.into_inner()); - assert_eq!(output, b"\x01Hello\x00World") - } - - #[test] - fn into_inner_invalidates_handles() { - let output: Vec> = Vec::new(); - let muxer = Multiplexer::new(output); - - let mut chan_0 = muxer.create_channel_handle(0); - - assert!(chan_0 - .send(Bytes::from(&b"Sample"[..])) - .now_or_never() - .is_some()); - - muxer.into_inner(); - - let outcome = chan_0 - .send(Bytes::from(&b"Second"[..])) - .now_or_never() - .unwrap() - .unwrap_err(); - assert!(matches!(outcome, MultiplexerError::MultiplexerClosed)); - } - - #[test] - fn cancelled_send_does_not_deadlock_multiplexer_if_handle_dropped() { - let sink = Arc::new(TestingSink::new()); - let muxer = Multiplexer::new(sink.clone().into_ref()); - - sink.set_clogged(true); - let mut chan_0 = muxer.create_channel_handle(0); - - assert!(chan_0 - .send(Bytes::from(&b"zero"[..])) - .now_or_never() - .is_none()); - - // At this point, we have cancelled a send that was in progress due to the sink not having - // finished. The sink will finish eventually, but has not been polled to completion, which - // means the lock is still engaged. Dropping the handle resolves this. - drop(chan_0); - - // Unclog the sink - a fresh handle should be able to continue. - sink.set_clogged(false); - - let mut chan_0 = muxer.create_channel_handle(1); - assert!(chan_0 - .send(Bytes::from(&b"one"[..])) - .now_or_never() - .is_some()); - } - - #[tokio::test] - async fn concurrent_sending() { - let sink = Arc::new(TestingSink::new()); - let muxer = Multiplexer::new(sink.clone().into_ref()); - - // Clog the sink for now. - sink.set_clogged(true); - - let mut chan_0 = muxer.create_channel_handle(0); - let mut chan_1 = muxer.create_channel_handle(1); - let mut chan_2 = muxer.create_channel_handle(2); - - // Channel zero has a long send going on. - let send_0 = - tokio::spawn(async move { chan_0.send(Bytes::from(&b"zero"[..])).await.unwrap() }); - tokio::task::yield_now().await; - - // The data has already arrived (it's a clog, not a plug): - assert_eq!(sink.get_contents(), b"\x00zero"); - - // The other two channels are sending in order. - let send_1 = tokio::spawn(async move { - chan_1.send(Bytes::from(&b"one"[..])).await.unwrap(); - }); - - // Yield, ensuring that `one` is in queue acquiring the lock first (since it is not plugged, - // it should enter the lock wait queue). - - tokio::task::yield_now().await; - - let send_2 = - tokio::spawn(async move { chan_2.send(Bytes::from(&b"two"[..])).await.unwrap() }); - - tokio::task::yield_now().await; - - // Unclog, this causes the first write to finish and others to follow. - sink.set_clogged(false); - - // All should finish with the unclogged sink. - send_2.await.unwrap(); - send_0.await.unwrap(); - send_1.await.unwrap(); - - // The final result should be in order. - assert_eq!(sink.get_contents(), b"\x00zero\x01one\x02two"); - } - - #[test] - fn multiple_handles_same_channel() { - let sink = Arc::new(TestingSink::new()); - let muxer = Multiplexer::new(sink.clone().into_ref()); - - let mut h0 = muxer.create_channel_handle(0); - let mut h1 = muxer.create_channel_handle(0); - let mut h2 = muxer.create_channel_handle(0); - - assert!(h1.send(Bytes::from(&b"One"[..])).now_or_never().is_some()); - assert!(h0.send(Bytes::from(&b"Two"[..])).now_or_never().is_some()); - assert!(h2.send(Bytes::from(&b"Three"[..])).now_or_never().is_some()); - - assert_eq!(sink.get_contents(), b"\x00One\x00Two\x00Three"); - } -} diff --git a/muxink/src/testing.rs b/muxink/src/testing.rs deleted file mode 100644 index ec495c689d..0000000000 --- a/muxink/src/testing.rs +++ /dev/null @@ -1,123 +0,0 @@ -//! Testing support utilities. - -pub mod encoding; -pub mod fixtures; -pub mod pipe; -pub mod testing_sink; -pub mod testing_stream; - -use std::{ - fmt::Debug, - io::Read, - result::Result, - sync::{ - atomic::{AtomicBool, Ordering}, - Arc, - }, -}; - -use bytes::Buf; -use futures::{Future, FutureExt, Stream, StreamExt}; -use tokio::task::JoinHandle; - -// In tests use small value to make sure that we correctly merge data that was polled from the -// stream in small fragments. -pub const TESTING_BUFFER_INCREMENT: usize = 4; - -/// Collects everything inside a `Buf` into a `Vec`. -pub fn collect_buf(buf: B) -> Vec { - let mut vec = Vec::new(); - buf.reader() - .read_to_end(&mut vec) - .expect("reading buf should never fail"); - vec -} - -/// Collects the contents of multiple `Buf`s into a single flattened `Vec`. -pub fn collect_bufs>(items: I) -> Vec { - let mut vec = Vec::new(); - for buf in items.into_iter() { - buf.reader() - .read_to_end(&mut vec) - .expect("reading buf should never fail"); - } - vec -} - -/// Given a stream producing results, returns the values. -/// -/// # Panics -/// -/// Panics if the future is not `Poll::Ready` or any value is an error. -pub fn collect_stream_results(stream: S) -> Vec -where - E: Debug, - S: Stream>, -{ - let results: Vec<_> = stream.collect().now_or_never().expect("stream not ready"); - results - .into_iter() - .collect::>() - .expect("error in stream results") -} - -/// A background task that can be asked whether it has completed or not. -#[derive(Debug)] -pub(crate) struct BackgroundTask { - /// Join handle for the background task. - join_handle: JoinHandle, - /// Indicates the task has started. - started: Arc, - /// Indicates the task has finished. - ended: Arc, -} - -impl BackgroundTask -where - T: Send, -{ - /// Spawns a new background task. - pub(crate) fn spawn(fut: F) -> Self - where - F: Future + Send + 'static, - T: 'static, - { - let started = Arc::new(AtomicBool::new(false)); - let ended = Arc::new(AtomicBool::new(false)); - - let (s, e) = (started.clone(), ended.clone()); - let join_handle = tokio::spawn(async move { - s.store(true, Ordering::SeqCst); - let rv = fut.await; - e.store(true, Ordering::SeqCst); - - rv - }); - - BackgroundTask { - join_handle, - started, - ended, - } - } - - /// Returns whether or not the task has finished. - pub(crate) fn has_finished(&self) -> bool { - self.ended.load(Ordering::SeqCst) - } - - /// Returns whether or not the task has begun. - pub(crate) fn has_started(&self) -> bool { - self.started.load(Ordering::SeqCst) - } - - /// Returns whether or not the task is currently executing. - pub(crate) fn is_running(&self) -> bool { - self.has_started() && !self.has_finished() - } - - /// Waits for the task to complete and returns its output. - pub(crate) async fn retrieve_output(self) -> T { - self.join_handle.await.expect("future has panicked") - } -} diff --git a/muxink/src/testing/encoding.rs b/muxink/src/testing/encoding.rs deleted file mode 100644 index 3258060803..0000000000 --- a/muxink/src/testing/encoding.rs +++ /dev/null @@ -1,112 +0,0 @@ -//! Quickly encoding values. -//! -//! Implements a small encoding scheme for values into raw bytes: -//! -//! * Integers are encoded as little-endian bytestrings. -//! * Single bytes are passed through unchanged. -//! * Chars are encoded as UTF-8 characters. -//! -//! Note that there is no decoding format, as the format is insufficiently framed to allow for easy -//! deserialization. - -use std::ops::Deref; - -use bytes::Bytes; -use futures::{Sink, SinkExt}; - -/// A value that is encodable using the testing encoding. -pub(crate) trait TestEncodeable { - /// Encodes the value to bytes. - /// - /// This function is not terribly efficient, but in test code, it does not have to be. - fn encode(&self) -> Bytes; - - /// Decodes a previously encoded value from bytes. - /// - /// The given `raw` buffer must contain exactly the output of a previous `encode` call. - fn decode(raw: &Bytes) -> Self; -} - -impl TestEncodeable for char { - #[inline] - fn encode(&self) -> Bytes { - let mut buf = [0u8; 6]; - let s = self.encode_utf8(&mut buf); - Bytes::from(s.to_string()) - } - - fn decode(raw: &Bytes) -> Self { - let s = std::str::from_utf8(raw).expect("invalid utf8"); - let mut chars = s.chars(); - let c = chars.next().expect("no chars in string"); - assert!(chars.next().is_none()); - c - } -} - -impl TestEncodeable for u8 { - #[inline] - fn encode(&self) -> Bytes { - let raw: Box<[u8]> = Box::new([*self]); - Bytes::from(raw) - } - - fn decode(raw: &Bytes) -> Self { - assert_eq!(raw.len(), 1); - raw[0] - } -} - -impl TestEncodeable for u16 { - #[inline] - fn encode(&self) -> Bytes { - let raw: Box<[u8]> = Box::new(self.to_le_bytes()); - Bytes::from(raw) - } - - fn decode(raw: &Bytes) -> Self { - u16::from_le_bytes(raw.deref().try_into().unwrap()) - } -} - -impl TestEncodeable for u32 { - #[inline] - fn encode(&self) -> Bytes { - let raw: Box<[u8]> = Box::new(self.to_le_bytes()); - Bytes::from(raw) - } - - fn decode(raw: &Bytes) -> Self { - u32::from_le_bytes(raw.deref().try_into().unwrap()) - } -} - -/// Helper trait for quickly encoding and sending a value. -pub(crate) trait EncodeAndSend { - /// Encode a value using test encoding and send it. - /// - /// This is equivalent to the following code: - /// - /// ```ignore - /// let sink: Sink = // ...; - /// let encoded = value.encode(); - /// sink.send(encoded) - /// ``` - fn encode_and_send(&mut self, value: T) -> futures::sink::Send<'_, Self, Bytes> - where - T: TestEncodeable; -} - -impl EncodeAndSend for S -where - S: Sink + Unpin, -{ - fn encode_and_send(&mut self, value: T) -> futures::sink::Send<'_, Self, Bytes> - where - T: TestEncodeable, - { - { - self.send(value.encode()) - } - } -} diff --git a/muxink/src/testing/fixtures.rs b/muxink/src/testing/fixtures.rs deleted file mode 100644 index 83a4981979..0000000000 --- a/muxink/src/testing/fixtures.rs +++ /dev/null @@ -1,119 +0,0 @@ -use std::{convert::Infallible, sync::Arc}; - -use bytes::Bytes; -use futures::{Sink, SinkExt, Stream, StreamExt}; -use tokio_stream::wrappers::ReceiverStream; -use tokio_util::sync::PollSender; - -use crate::{ - backpressured::{BackpressuredSink, BackpressuredStream}, - testing::testing_sink::{TestingSink, TestingSinkRef}, -}; - -/// Window size used in tests. -pub const WINDOW_SIZE: u64 = 3; - -/// Sets up a `Sink`/`Stream` pair that outputs infallible results. -pub fn setup_io_pipe( - size: usize, -) -> ( - impl Sink + Unpin + 'static, - impl Stream> + Unpin + 'static, -) { - let (send, recv) = tokio::sync::mpsc::channel::(size); - - let stream = ReceiverStream::new(recv).map(Ok); - - let sink = - PollSender::new(send).sink_map_err(|_err| panic!("did not expect a `PollSendError`")); - - (sink, stream) -} - -/// A common set of fixtures used in the backpressure tests. -/// -/// The fixtures represent what a server holds when dealing with a backpressured client. -pub struct OneWayFixtures { - /// A sender for ACKs back to the client. - pub ack_sink: Box + Unpin>, - /// The clients sink for requests, with no backpressure wrapper. Used for retrieving the - /// test data in the end or setting plugged/clogged status. - pub sink: Arc, - /// The properly set up backpressured sink. - pub bp: BackpressuredSink< - TestingSinkRef, - Box> + Unpin>, - Bytes, - >, -} - -impl OneWayFixtures { - /// Creates a new set of fixtures. - pub fn new() -> Self { - let sink = Arc::new(TestingSink::new()); - - let (raw_ack_sink, raw_ack_stream) = setup_io_pipe::(1024); - - // The ACK stream and sink need to be boxed to make their types named. - let ack_sink: Box + Unpin> = Box::new(raw_ack_sink); - let ack_stream: Box> + Unpin> = - Box::new(raw_ack_stream); - - let bp = BackpressuredSink::new(sink.clone().into_ref(), ack_stream, WINDOW_SIZE); - - Self { ack_sink, sink, bp } - } -} - -impl Default for OneWayFixtures { - fn default() -> Self { - Self::new() - } -} - -/// A more complicated setup for testing backpressure that allows accessing both sides of the -/// connection. -/// -/// The resulting `client` sends byte frames across to the `server`, with ACKs flowing through -/// the associated ACK pipe. -#[allow(clippy::type_complexity)] -pub struct TwoWayFixtures { - pub client: BackpressuredSink< - Box + Send + Unpin>, - Box> + Send + Unpin>, - Bytes, - >, - pub server: BackpressuredStream< - Box> + Send + Unpin>, - Box + Send + Unpin>, - Bytes, - >, -} - -impl TwoWayFixtures { - /// Creates a new set of two-way fixtures. - pub fn new(size: usize) -> Self { - Self::new_with_window(size, WINDOW_SIZE) - } - /// Creates a new set of two-way fixtures with a specified window size. - pub fn new_with_window(size: usize, window_size: u64) -> Self { - let (sink, stream) = setup_io_pipe::(size); - - let (ack_sink, ack_stream) = setup_io_pipe::(size); - - let boxed_sink: Box + Send + Unpin + 'static> = - Box::new(sink); - let boxed_ack_stream: Box> + Send + Unpin> = - Box::new(ack_stream); - - let client = BackpressuredSink::new(boxed_sink, boxed_ack_stream, window_size); - - let boxed_stream: Box> + Send + Unpin> = - Box::new(stream); - let boxed_ack_sink: Box + Send + Unpin> = - Box::new(ack_sink); - let server = BackpressuredStream::new(boxed_stream, boxed_ack_sink, window_size); - - TwoWayFixtures { client, server } - } -} diff --git a/muxink/src/testing/pipe.rs b/muxink/src/testing/pipe.rs deleted file mode 100644 index bb9acd0754..0000000000 --- a/muxink/src/testing/pipe.rs +++ /dev/null @@ -1,209 +0,0 @@ -//! IO pipes for testing. -//! -//! A pipe writes to an infinite memory buffer and can be used to test async read/write IO. - -use std::{ - collections::VecDeque, - io, - pin::Pin, - sync::{Arc, Mutex, MutexGuard}, - task::{Context, Poll, Waker}, -}; - -use futures::{AsyncRead, AsyncWrite}; - -use crate::try_ready; - -/// The read end of a pipe. -#[derive(Debug)] -pub struct ReadEnd { - /// Buffer containing read data. - inner: Arc>, -} - -/// The write end of a pipe. -#[derive(Debug)] -pub struct WriteEnd { - /// Buffer containing write data. - inner: Arc>, -} - -/// Innards of a pipe. -#[derive(Debug, Default)] -struct PipeInner { - /// Buffer for data currently in the pipe. - buffer: VecDeque, - /// Whether or not the pipe has been closed. - closed: bool, - /// Waker for the reader of the pipe. - read_waker: Option, -} - -/// Acquire a guard on a buffer mutex. -fn acquire_lock(inner: &mut Arc>) -> io::Result> { - match inner.lock() { - Ok(guard) => Ok(guard), - Err(poisoned) => Err(io::Error::new(io::ErrorKind::Other, poisoned.to_string())), - } -} - -impl Drop for ReadEnd { - fn drop(&mut self) { - let mut guard = - acquire_lock(&mut self.inner).expect("could not acquire lock during drop of `ReadEnd`"); - - guard.closed = true; - - if let Some(waker) = guard.read_waker.take() { - waker.wake(); - } - } -} - -impl Drop for WriteEnd { - fn drop(&mut self) { - let mut guard = - acquire_lock(&mut self.inner).expect("could not acquire lock during drop of `ReadEnd`"); - - guard.closed = true; - - if let Some(waker) = guard.read_waker.take() { - waker.wake(); - } - } -} - -impl AsyncRead for ReadEnd { - fn poll_read( - mut self: Pin<&mut Self>, - cx: &mut Context<'_>, - dest: &mut [u8], - ) -> Poll> { - let mut inner = try_ready!(acquire_lock(&mut self.inner)); - - if inner.buffer.is_empty() { - if inner.closed { - Poll::Ready(Ok(0)) - } else { - inner.read_waker = Some(cx.waker().clone()); - Poll::Pending - } - } else { - let to_read = inner.buffer.len().min(dest.len()); - - // This is a bit ugly and probably slow, but will have to do for now :( - for (idx, c) in inner.buffer.drain(0..to_read).enumerate() { - dest[idx] = c; - } - - Poll::Ready(Ok(to_read)) - } - } -} - -impl AsyncWrite for WriteEnd { - fn poll_write( - self: Pin<&mut Self>, - _cx: &mut Context<'_>, - source: &[u8], - ) -> Poll> { - let mut guard = try_ready!(acquire_lock(&mut self.get_mut().inner)); - - if guard.closed { - return Poll::Ready(Err(io::Error::new( - io::ErrorKind::BrokenPipe, - "async testing pipe closed", - ))); - } - - guard.buffer.extend(source); - - if let Some(waker) = guard.read_waker.take() { - waker.wake(); - } - - Poll::Ready(Ok(source.len())) - } - - fn poll_flush(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { - // Poll will never have any effect, so we do not need to wake anyone. - - Poll::Ready(Ok(())) - } - - fn poll_close(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { - let mut guard = try_ready!(acquire_lock(&mut self.get_mut().inner)); - - guard.closed = true; - if let Some(waker) = guard.read_waker.take() { - waker.wake(); - } - - Poll::Ready(Ok(())) - } -} - -/// Creates a new asynchronous pipe. -/// -/// The resulting pipe will write all data into an infinitely growing memory buffer. All writes will -/// succeed, unless the pipe is closed. Reads will immediately return as much data as is available -/// and be properly woken up if more data is required. -/// -/// Dropping either end of the pipe will close it, causing writes to return broken pipe errors and -/// reads to return successful 0-byte reads. -#[cfg(test)] -pub(crate) fn pipe() -> (WriteEnd, ReadEnd) { - let inner: Arc> = Default::default(); - let read_end = ReadEnd { - inner: inner.clone(), - }; - let write_end = WriteEnd { inner }; - (write_end, read_end) -} - -#[cfg(test)] -mod tests { - use futures::{AsyncReadExt, AsyncWriteExt, FutureExt}; - - use super::pipe; - - #[test] - fn async_pipe_works() { - let (mut write_end, mut read_end) = pipe(); - - assert!(read_end - .read_to_end(&mut Vec::new()) - .now_or_never() - .is_none()); - - write_end.write_all(b"one").now_or_never().unwrap().unwrap(); - write_end.write_all(b"two").now_or_never().unwrap().unwrap(); - - let mut buf = [0; 5]; - read_end - .read_exact(&mut buf) - .now_or_never() - .unwrap() - .unwrap(); - - assert_eq!(&buf, b"onetw"); - - let mut remainder: Vec = Vec::new(); - - write_end - .write_all(b"three") - .now_or_never() - .unwrap() - .unwrap(); - - write_end.close().now_or_never().unwrap().unwrap(); - - read_end - .read_to_end(&mut remainder) - .now_or_never() - .unwrap() - .unwrap(); - - assert_eq!(remainder, b"othree"); - } -} diff --git a/muxink/src/testing/testing_sink.rs b/muxink/src/testing/testing_sink.rs deleted file mode 100644 index 7ad3460ba4..0000000000 --- a/muxink/src/testing/testing_sink.rs +++ /dev/null @@ -1,378 +0,0 @@ -//! Bytes-streaming testing sink. - -use std::{ - collections::VecDeque, - convert::Infallible, - fmt::Debug, - io::Read, - ops::Deref, - pin::Pin, - sync::{Arc, Mutex}, - task::{Context, Poll, Waker}, -}; - -use bytes::Buf; -use futures::{Sink, SinkExt}; - -#[cfg(test)] -use futures::FutureExt; - -/// A sink for unit testing. -/// -/// All data sent to it will be written to a buffer immediately that can be read during -/// operation. It is guarded by a lock so that only complete writes are visible. -/// -/// Additionally, a `Plug` can be inserted into the sink. While a plug is plugged in, no data -/// can flow into the sink. In a similar manner, the sink can be clogged - while it is possible -/// to start sending new data, it will not report being done until the clog is cleared. -/// -/// ```text -/// Item -> (plugged?) [ ... ] -> (clogged?) -> done flushing -/// ^ Input ^ Plug (blocks input) ^ Buffer contents ^ Clog, prevents flush -/// ``` -/// -/// This can be used to simulate a sink on a busy or slow TCP connection, for example. -#[derive(Default, Debug)] -pub struct TestingSink { - /// The state of the plug. - obstruction: Mutex, - /// Buffer storing all the data. - buffer: Arc>>, -} - -impl TestingSink { - /// Creates a new testing sink. - /// - /// The sink will initially be unplugged. - pub fn new() -> Self { - TestingSink::default() - } - - /// Inserts or removes the plug from the sink. - pub fn set_plugged(&self, plugged: bool) { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - guard.plugged = plugged; - - // Notify any waiting tasks that there may be progress to be made. - if !plugged { - if let Some(ref waker) = guard.waker { - waker.wake_by_ref() - } - } - } - - /// Inserts or removes the clog from the sink. - pub fn set_clogged(&self, clogged: bool) { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - guard.clogged = clogged; - - // Notify any waiting tasks that there may be progress to be made. - if !clogged { - if let Some(ref waker) = guard.waker { - waker.wake_by_ref() - } - } - } - - /// Determine whether the sink is plugged. - /// - /// Will update the local waker reference. - pub fn is_plugged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - - guard.waker = Some(cx.waker().clone()); - guard.plugged - } - - /// Determine whether the sink is clogged. - /// - /// Will update the local waker reference. - pub fn is_clogged(&self, cx: &mut Context<'_>) -> bool { - let mut guard = self.obstruction.lock().expect("obstruction mutex poisoned"); - - guard.waker = Some(cx.waker().clone()); - guard.clogged - } - - /// Returns a copy of the contents. - pub fn get_contents(&self) -> Vec { - Vec::clone( - &self - .buffer - .lock() - .expect("could not lock test sink for copying"), - ) - } - - /// Returns a copy of the contents, parsed as a UTF8 encoded string. - pub fn get_contents_string(&self) -> String { - String::from_utf8(self.get_contents()).expect("non-utf8 characters in sink") - } - - /// Creates a new reference to the testing sink that also implements `Sink`. - /// - /// Internally, the reference has a static lifetime through `Arc` and can thus be passed - /// on independently. - pub fn into_ref(self: Arc) -> TestingSinkRef { - TestingSinkRef(self) - } - - /// Helper function for sink implementations, calling `poll_ready`. - fn sink_poll_ready(&self, cx: &mut Context<'_>) -> Poll> { - if self.is_plugged(cx) { - Poll::Pending - } else { - Poll::Ready(Ok(())) - } - } - - /// Helper function for sink implementations, calling `start_end`. - fn sink_start_send(&self, item: F) -> Result<(), Infallible> { - let mut guard = self.buffer.lock().expect("could not lock buffer"); - - item.reader() - .read_to_end(&mut guard) - .expect("writing to vec should never fail"); - - Ok(()) - } - - /// Helper function for sink implementations, calling `sink_poll_flush`. - fn sink_poll_flush(&self, cx: &mut Context<'_>) -> Poll> { - // We're always done storing the data, but we pretend we need to do more if clogged. - if self.is_clogged(cx) { - Poll::Pending - } else { - Poll::Ready(Ok(())) - } - } - - /// Helper function for sink implementations, calling `sink_poll_close`. - fn sink_poll_close(&self, cx: &mut Context<'_>) -> Poll> { - // Nothing to close, so this is essentially the same as flushing. - self.sink_poll_flush(cx) - } -} - -/// A plug/clog inserted into the sink. -#[derive(Debug, Default)] -pub struct SinkObstruction { - /// Whether or not the sink is plugged. - plugged: bool, - /// Whether or not the sink is clogged. - clogged: bool, - /// The waker of the last task to access the plug. Will be called when removing. - waker: Option, -} - -/// Helper macro to implement forwarding the `Sink` traits methods to fixed methods on -/// `TestingSink`. -macro_rules! sink_impl_fwd { - ($ty:ty) => { - impl Sink for $ty { - type Error = Infallible; - - fn poll_ready( - self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.sink_poll_ready(cx) - } - - fn start_send(self: Pin<&mut Self>, item: F) -> Result<(), Self::Error> { - self.sink_start_send(item) - } - - fn poll_flush( - self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.sink_poll_flush(cx) - } - - fn poll_close( - self: Pin<&mut Self>, - cx: &mut Context<'_>, - ) -> Poll> { - self.sink_poll_close(cx) - } - } - }; -} - -/// A reference to a testing sink that implements `Sink`. -#[derive(Debug)] -pub struct TestingSinkRef(Arc); - -impl Deref for TestingSinkRef { - type Target = TestingSink; - - fn deref(&self) -> &Self::Target { - &self.0 - } -} - -sink_impl_fwd!(TestingSink); -sink_impl_fwd!(&TestingSink); -sink_impl_fwd!(TestingSinkRef); - -#[test] -fn simple_lifecycle() { - let mut sink = TestingSink::new(); - assert!(sink.send(&b"one"[..]).now_or_never().is_some()); - assert!(sink.send(&b"two"[..]).now_or_never().is_some()); - assert!(sink.send(&b"three"[..]).now_or_never().is_some()); - - assert_eq!(sink.get_contents(), b"onetwothree"); -} - -#[test] -fn plug_blocks_sink() { - let sink = TestingSink::new(); - let mut sink_handle = &sink; - - sink.set_plugged(true); - - // The sink is plugged, so sending should fail. We also drop the future, causing the value - // to be discarded. - assert!(sink_handle.send(&b"dummy"[..]).now_or_never().is_none()); - assert!(sink.get_contents().is_empty()); - - // Now stuff more data into the sink. - let second_send = sink_handle.send(&b"second"[..]); - sink.set_plugged(false); - assert!(second_send.now_or_never().is_some()); - assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); - assert_eq!(sink.get_contents(), b"secondthird"); -} - -#[test] -fn clog_blocks_sink_completion() { - let sink = TestingSink::new(); - let mut sink_handle = &sink; - - sink.set_clogged(true); - - // The sink is clogged, so sending should fail to complete, but it is written. - assert!(sink_handle.send(&b"first"[..]).now_or_never().is_none()); - assert_eq!(sink.get_contents(), b"first"); - - // Now stuff more data into the sink. - let second_send = sink_handle.send(&b"second"[..]); - sink.set_clogged(false); - assert!(second_send.now_or_never().is_some()); - assert!(sink_handle.send(&b"third"[..]).now_or_never().is_some()); - assert_eq!(sink.get_contents(), b"firstsecondthird"); -} - -/// Verifies that when a sink is clogged but later unclogged, any waiters on it are woken up. -#[tokio::test] -async fn waiting_tasks_can_progress_upon_unplugging_the_sink() { - let sink = Arc::new(TestingSink::new()); - - sink.set_plugged(true); - - let sink_alt = sink.clone(); - - let join_handle = tokio::spawn(async move { - sink_alt.as_ref().send(&b"sample"[..]).await.unwrap(); - }); - - tokio::task::yield_now().await; - sink.set_plugged(false); - - // This will block forever if the other task is not woken up. To verify, comment out the - // `Waker::wake_by_ref` call in the sink implementation. - join_handle.await.unwrap(); -} - -/// A clogging adapter. -/// -/// While the `TestingSink` combines a buffer with a sink and plugging/clogging capabilities, it is -/// sometimes necessary to just limit flow through an underlying sink. The `ClogAdapter` allows to -/// do just that, controlling whether or not items are held or sent through to an underlying stream. -pub struct BufferingClogAdapter -where - S: Sink, -{ - /// Whether or not the clog is currently engaged. - clogged: bool, - /// Buffer for items when the sink is clogged. - buffer: VecDeque, - /// The sink items are sent into. - sink: S, - /// The waker of the last task to access the plug. Will be called when removing. - waker: Option, -} - -impl BufferingClogAdapter -where - S: Sink, -{ - /// Creates a new clogging adapter wrapping a sink. - /// - /// Initially the clog will not be engaged. - pub fn new(sink: S) -> Self { - Self { - clogged: false, - buffer: VecDeque::new(), - sink, - waker: None, - } - } - - /// Set the clogging state. - pub fn set_clogged(&mut self, clogged: bool) { - self.clogged = clogged; - - // If we were unclogged and have a waker, call it. - if !clogged { - if let Some(waker) = self.waker.take() { - waker.wake(); - } - } - } -} - -impl Sink for BufferingClogAdapter -where - S: Sink + Unpin, - Item: Unpin, - >::Error: Debug, -{ - type Error = >::Error; - - fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().sink.poll_ready_unpin(cx) - } - - fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error> { - let self_mut = self.get_mut(); - if self_mut.clogged { - self_mut.buffer.push_back(item); - Ok(()) - } else { - self_mut.sink.start_send_unpin(item) - } - } - - fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - let self_mut = self.get_mut(); - if self_mut.clogged { - self_mut.waker = Some(cx.waker().clone()); - Poll::Pending - } else { - if self_mut.poll_ready_unpin(cx).is_pending() { - return Poll::Pending; - } - while let Some(item) = self_mut.buffer.pop_front() { - self_mut.sink.start_send_unpin(item).unwrap(); - } - self_mut.sink.poll_flush_unpin(cx) - } - } - - fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - self.get_mut().sink.poll_close_unpin(cx) - } -} diff --git a/muxink/src/testing/testing_stream.rs b/muxink/src/testing/testing_stream.rs deleted file mode 100644 index bf4855788d..0000000000 --- a/muxink/src/testing/testing_stream.rs +++ /dev/null @@ -1,177 +0,0 @@ -/// Generic testing stream. -use std::{ - collections::VecDeque, - pin::Pin, - sync::{Arc, Mutex}, - task::{Context, Poll, Waker}, - time::Duration, -}; - -use futures::{FutureExt, Stream, StreamExt}; - -/// A testing stream that returns predetermined items. -/// -/// Returns [`Poll::Ready(None)`] only once, subsequent polling after it has finished will result -/// in a panic. -/// -/// Can be paused via [`StreamControl::pause`]. -#[derive(Debug)] -pub(crate) struct TestingStream { - /// The items to be returned by the stream. - items: VecDeque, - /// Indicates the stream has finished, causing subsequent polls to panic. - finished: bool, - /// Control object for stream. - control: Arc>, -} - -/// A reference to a testing stream. -#[derive(Debug)] -pub(crate) struct StreamControlRef(Arc>); - -/// Stream control for pausing and unpausing. -#[derive(Debug, Default)] -pub(crate) struct StreamControl { - /// Whether the stream should return [`Poll::Pending`] at the moment. - paused: bool, - /// The waker to reawake the stream after unpausing. - waker: Option, -} - -impl StreamControlRef { - /// Pauses the stream. - /// - /// Subsequent polling of the stream will result in `Pending` being returned. - pub(crate) fn pause(&self) { - let mut guard = self.0.lock().expect("stream control poisoned"); - guard.paused = true; - } - - /// Unpauses the stream. - /// - /// Causes the stream to resume. If it was paused, any waiting tasks will be woken up. - pub(crate) fn unpause(&self) { - let mut guard = self.0.lock().expect("stream control poisoned"); - - if let Some(waker) = guard.waker.take() { - waker.wake(); - } - guard.paused = false; - } -} - -impl TestingStream { - /// Creates a new stream for testing. - pub(crate) fn new>(items: I) -> Self { - TestingStream { - items: items.into_iter().collect(), - finished: false, - control: Default::default(), - } - } - - /// Creates a new reference to the testing stream controls. - pub(crate) fn control(&self) -> StreamControlRef { - StreamControlRef(self.control.clone()) - } -} - -impl Stream for TestingStream -where - T: Unpin, -{ - type Item = T; - - fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { - { - let mut guard = self.control.lock().expect("stream control poisoned"); - - if guard.paused { - guard.waker = Some(cx.waker().clone()); - return Poll::Pending; - } - } - - let mut self_mut = Pin::into_inner(self); - - // Panic if we've already emitted [`Poll::Ready(None)`] - if self_mut.finished { - panic!("polled a TestStream after completion"); - } - if let Some(t) = self_mut.items.pop_front() { - Poll::Ready(Some(t)) - } else { - // Before we return None, make sure we set finished to true so that calling this - // again will result in a panic, as the specification for `Stream` tells us is - // possible with an arbitrary implementation. - self_mut.finished = true; - Poll::Ready(None) - } - } -} - -#[tokio::test] -async fn smoke_test() { - let mut stream = TestingStream::new([1, 2, 3]); - - assert_eq!(stream.next().await, Some(1)); - assert_eq!(stream.next().await, Some(2)); - assert_eq!(stream.next().await, Some(3)); - assert_eq!(stream.next().await, None); -} - -#[tokio::test] -#[should_panic(expected = "polled a TestStream after completion")] -async fn stream_panics_if_polled_after_ready() { - let mut stream = TestingStream::new([1, 2, 3]); - stream.next().await; - stream.next().await; - stream.next().await; - stream.next().await; - stream.next().await; -} - -#[test] -fn stream_can_be_paused() { - let mut stream = TestingStream::new([1, 2, 3]); - - assert_eq!( - stream.next().now_or_never().expect("should be ready"), - Some(1) - ); - - stream.control().pause(); - assert!(stream.next().now_or_never().is_none()); - assert!(stream.next().now_or_never().is_none()); - stream.control().unpause(); - - assert_eq!( - stream.next().now_or_never().expect("should be ready"), - Some(2) - ); -} - -#[tokio::test] -async fn stream_unpausing_wakes_up_test_stream() { - let mut stream = TestingStream::new([1, 2, 3]); - let ctrl = stream.control(); - ctrl.pause(); - - let reader = tokio::spawn(async move { - stream.next().await; - stream.next().await; - stream.next().await; - assert!(stream.next().await.is_none()); - }); - - // Allow for a little bit of time for the reader to block. - tokio::time::sleep(Duration::from_millis(50)).await; - - ctrl.unpause(); - - // After unpausing, the reader should be able to finish. - tokio::time::timeout(Duration::from_secs(1), reader) - .await - .expect("should not timeout") - .expect("should join successfully"); -} diff --git a/node/Cargo.toml b/node/Cargo.toml index 63190c2feb..e2044f7e98 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -50,7 +50,6 @@ libc = "0.2.66" linked-hash-map = "0.5.3" lmdb-rkv = "0.14" log = { version = "0.4.8", features = [ "std", "serde", "kv_unstable" ] } -muxink = { path = "../muxink" } num = { version = "0.4.0", default-features = false } num-derive = "0.3.0" num-rational = { version = "0.4.0", features = [ "serde" ] } From 652a9da2caecb73132d0147729d90944b3284287 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Mon, 7 Aug 2023 16:53:29 +0200 Subject: [PATCH 606/735] Fix rustdoc --- execution_engine/src/shared/transform.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/execution_engine/src/shared/transform.rs b/execution_engine/src/shared/transform.rs index 3ebdc9b8a6..e7ff9c8181 100644 --- a/execution_engine/src/shared/transform.rs +++ b/execution_engine/src/shared/transform.rs @@ -171,7 +171,7 @@ impl Transform { /// Applies the transformation on a specified stored value instance. /// /// This method produces a new [`StoredValue`] instance based on the [`Transform`] variant. If a - /// given transform is a [`Transform::Delete`] then `None` is returned as the [`StoredValue`] is + /// given transform is a [`Transform::Prune`] then `None` is returned as the [`StoredValue`] is /// consumed but no new value is produced. pub fn apply(self, stored_value: StoredValue) -> Result, Error> { match self { From 623b6c44857d1588602c6d3ff1dcb028fdb93013 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Tue, 8 Aug 2023 16:37:34 +0200 Subject: [PATCH 607/735] Fix schema failure --- resources/test/rpc_schema_hashing.json | 2 +- resources/test/sse_data_schema.json | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/resources/test/rpc_schema_hashing.json b/resources/test/rpc_schema_hashing.json index 40dd4bd5d1..8375fcae34 100644 --- a/resources/test/rpc_schema_hashing.json +++ b/resources/test/rpc_schema_hashing.json @@ -2496,7 +2496,7 @@ "WriteContractWasm", "WriteContract", "WriteContractPackage", - "Delete" + "Prune" ] }, { diff --git a/resources/test/sse_data_schema.json b/resources/test/sse_data_schema.json index bb7d70eaa1..f375df2f57 100644 --- a/resources/test/sse_data_schema.json +++ b/resources/test/sse_data_schema.json @@ -1254,7 +1254,7 @@ "WriteContractWasm", "WriteContract", "WriteContractPackage", - "Delete" + "Prune" ] }, { From 4ad18c68640c4cbd306cbb37c78d0e530bacf12b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Wed, 9 Aug 2023 17:17:32 +0200 Subject: [PATCH 608/735] Fix clippy issues --- execution_engine/src/core/engine_state/mod.rs | 4 ++-- json_rpc/src/lib.rs | 2 +- node/src/components/event_stream_server.rs | 2 +- node/src/components/rest_server.rs | 2 +- node/src/components/rpc_server.rs | 4 ++-- 5 files changed, 7 insertions(+), 7 deletions(-) diff --git a/execution_engine/src/core/engine_state/mod.rs b/execution_engine/src/core/engine_state/mod.rs index b0ac2d44d0..8da6ed4b75 100644 --- a/execution_engine/src/core/engine_state/mod.rs +++ b/execution_engine/src/core/engine_state/mod.rs @@ -2223,12 +2223,12 @@ where (delay, era_id) }; - for key in withdraw_keys { + for key in &withdraw_keys { // Transform only those withdraw purses that are still to be // processed in the unbonding queue. let withdraw_purses = tracking_copy .borrow_mut() - .read(correlation_id, &key) + .read(correlation_id, key) .map_err(|_| Error::FailedToGetWithdrawKeys)? .ok_or(Error::FailedToGetStoredWithdraws)? .as_withdraw() diff --git a/json_rpc/src/lib.rs b/json_rpc/src/lib.rs index 71360911d0..c156c60962 100644 --- a/json_rpc/src/lib.rs +++ b/json_rpc/src/lib.rs @@ -122,7 +122,7 @@ impl CorsOrigin { /// * `"*"`: [`CorsOrigin::Any`]. /// * otherwise, returns `CorsOrigin::Specified(raw)`. #[inline] - pub fn from_str>(raw: T) -> Option { + pub fn parse_str>(raw: T) -> Option { match raw.as_ref() { "" => None, "*" => Some(CorsOrigin::Any), diff --git a/node/src/components/event_stream_server.rs b/node/src/components/event_stream_server.rs index 85373a7a91..3be94dd30d 100644 --- a/node/src/components/event_stream_server.rs +++ b/node/src/components/event_stream_server.rs @@ -126,7 +126,7 @@ impl EventStreamServer { let (sse_data_sender, sse_data_receiver) = mpsc::unbounded_channel(); - let sse_filter = match CorsOrigin::from_str(&self.config.cors_origin) { + let sse_filter = match CorsOrigin::parse_str(&self.config.cors_origin) { Some(cors_origin) => sse_filter .with(cors_origin.to_cors_builder().build()) .map(box_reply) diff --git a/node/src/components/rest_server.rs b/node/src/components/rest_server.rs index 7b3082b6a8..36d40271a0 100644 --- a/node/src/components/rest_server.rs +++ b/node/src/components/rest_server.rs @@ -336,7 +336,7 @@ where self.api_version, shutdown_fuse.clone(), cfg.qps_limit, - CorsOrigin::from_str(&cfg.cors_origin), + CorsOrigin::parse_str(&cfg.cors_origin), ))); let node_startup_instant = self.node_startup_instant; diff --git a/node/src/components/rpc_server.rs b/node/src/components/rpc_server.rs index 35831d4b8d..a49efcd416 100644 --- a/node/src/components/rpc_server.rs +++ b/node/src/components/rpc_server.rs @@ -454,7 +454,7 @@ where self.api_version, cfg.qps_limit, cfg.max_body_bytes, - CorsOrigin::from_str(&cfg.cors_origin), + CorsOrigin::parse_str(&cfg.cors_origin), )); Some(()) } else { @@ -469,7 +469,7 @@ where self.api_version, cfg.qps_limit, cfg.max_body_bytes, - CorsOrigin::from_str(&cfg.cors_origin), + CorsOrigin::parse_str(&cfg.cors_origin), )); Ok(Effects::new()) From 9dbb5c24970212c83b50b8b036fa376ced774a8e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 10 Aug 2023 15:20:13 +0200 Subject: [PATCH 609/735] juliet: Add quality-of-life functions --- juliet/src/io.rs | 11 ++++++++++- juliet/src/rpc.rs | 36 +++++++++++++++++++++++++++++++++++- 2 files changed, 45 insertions(+), 2 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 3aa50ad330..bbc434ed5d 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -281,9 +281,18 @@ impl IoCoreBuilder { /// Creates a new builder for an [`IoCore`]. #[inline] pub const fn new(protocol: ProtocolBuilder) -> Self { + Self::with_default_buffer_size(protocol, 1) + } + + /// Creates a new builder for an [`IoCore`], initializing all buffer sizes to the given default. + #[inline] + pub const fn with_default_buffer_size( + protocol: ProtocolBuilder, + default_buffer_size: usize, + ) -> Self { Self { protocol, - buffer_size: [1; N], + buffer_size: [default_buffer_size; N], } } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 6b9c7ffdae..ea872b4671 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -21,6 +21,7 @@ use std::{ collections::HashMap, + fmt::{self, Display, Formatter}, sync::{Arc, OnceLock}, time::Duration, }; @@ -87,7 +88,7 @@ impl RpcBuilder { /// Juliet RPC client. /// /// The client is used to create new RPC calls through [`JulietRpcClient::create_request`]. -#[derive(Debug)] +#[derive(Clone, Debug)] pub struct JulietRpcClient { new_request_sender: UnboundedSender, request_handle: RequestHandle, @@ -290,6 +291,11 @@ impl Drop for JulietRpcServer { } impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { + /// Recovers a payload from the request builder. + pub fn into_payload(self) -> Option { + self.payload + } + /// Sets the payload for the request. /// /// By default, no payload is included. @@ -523,7 +529,35 @@ pub struct IncomingRequest { handle: Option, } +impl Display for IncomingRequest { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + write!( + f, + "IncomingRequest {{ channel: {}, id: {}, payload: ", + self.channel, self.id + )?; + + if let Some(ref payload) = self.payload { + write!(f, "{} bytes }}", payload.len()) + } else { + f.write_str("none>") + } + } +} + impl IncomingRequest { + /// Returns the [`ChannelId`] of the channel the request arrived on. + #[inline(always)] + pub const fn channel(&self) -> ChannelId { + self.channel + } + + /// Returns the [`Id`] of the request. + #[inline(always)] + pub const fn id(&self) -> Id { + self.id + } + /// Returns a reference to the payload, if any. #[inline(always)] pub const fn payload(&self) -> &Option { From 50cf42c65248a91fa84344fe90222b6ea12f4bd4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 10 Aug 2023 15:25:27 +0200 Subject: [PATCH 610/735] Swap in `juliet` for `muxink` --- Cargo.lock | 1 + node/CHANGELOG.md | 1 + node/Cargo.toml | 1 + node/src/components/gossiper/tests.rs | 3 +- node/src/components/in_memory_network.rs | 3 +- node/src/components/network.rs | 255 ++++++++------------- node/src/components/network/config.rs | 2 +- node/src/components/network/error.rs | 38 ++-- node/src/components/network/event.rs | 7 +- node/src/components/network/message.rs | 11 +- node/src/components/network/tasks.rs | 274 +++++------------------ node/src/components/network/tests.rs | 3 +- node/src/components/network/transport.rs | 77 +++++++ node/src/effect.rs | 3 +- node/src/effect/incoming.rs | 3 +- node/src/protocol.rs | 5 +- 16 files changed, 272 insertions(+), 415 deletions(-) create mode 100644 node/src/components/network/transport.rs diff --git a/Cargo.lock b/Cargo.lock index 67b45c9a4f..368a8a8b3a 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -653,6 +653,7 @@ dependencies = [ "humantime", "hyper", "itertools 0.10.5", + "juliet", "libc", "linked-hash-map", "lmdb-rkv", diff --git a/node/CHANGELOG.md b/node/CHANGELOG.md index 2ae2163d44..e6d0770e83 100644 --- a/node/CHANGELOG.md +++ b/node/CHANGELOG.md @@ -18,6 +18,7 @@ All notable changes to this project will be documented in this file. The format ### Changed * The `state_identifier` parameter of the `query_global_state` JSON-RPC method is now optional. If no `state_identifier` is specified, the highest complete block known to the node will be used to fulfill the request. +* The underlying network protocol has been changed, now supports multiplexing for better latency and proper backpressuring across nodes. diff --git a/node/Cargo.toml b/node/Cargo.toml index e2044f7e98..21d9ea51cd 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -46,6 +46,7 @@ http = "0.2.1" humantime = "2.1.0" hyper = "0.14.26" itertools = "0.10.0" +juliet = { path = "../juliet" } libc = "0.2.66" linked-hash-map = "0.5.3" lmdb-rkv = "0.14" diff --git a/node/src/components/gossiper/tests.rs b/node/src/components/gossiper/tests.rs index 46438a85b8..f859cafd3f 100644 --- a/node/src/components/gossiper/tests.rs +++ b/node/src/components/gossiper/tests.rs @@ -8,7 +8,6 @@ use std::{ }; use derive_more::{Display, From}; -use muxink::backpressured::Ticket; use prometheus::Registry; use rand::Rng; use reactor::ReactorEvent; @@ -25,7 +24,7 @@ use crate::{ components::{ deploy_acceptor, in_memory_network::{self, InMemoryNetwork, NetworkController}, - network::{GossipedAddress, Identity as NetworkIdentity}, + network::{GossipedAddress, Identity as NetworkIdentity, Ticket}, storage::{self, Storage}, }, effect::{ diff --git a/node/src/components/in_memory_network.rs b/node/src/components/in_memory_network.rs index d6cbbbe749..a356d5be79 100644 --- a/node/src/components/in_memory_network.rs +++ b/node/src/components/in_memory_network.rs @@ -285,14 +285,13 @@ use std::{ }; use casper_types::testing::TestRng; -use muxink::backpressured::Ticket; use rand::seq::IteratorRandom; use serde::Serialize; use tokio::sync::mpsc::{self, error::SendError}; use tracing::{debug, error, info, warn}; use crate::{ - components::Component, + components::{network::Ticket, Component}, effect::{requests::NetworkRequest, EffectBuilder, EffectExt, Effects}, logging, reactor::{EventQueueHandle, QueueKind}, diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 553c5a6c7e..e4ff2f932a 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -42,16 +42,16 @@ mod symmetry; pub(crate) mod tasks; #[cfg(test)] mod tests; +mod transport; use std::{ collections::{BTreeMap, HashMap, HashSet}, convert::TryInto, fmt::{self, Debug, Display, Formatter}, fs::OpenOptions, - io, marker::PhantomData, net::{SocketAddr, TcpListener}, - sync::{Arc, Mutex}, + sync::Arc, time::{Duration, Instant}, }; @@ -61,17 +61,8 @@ use bytes::Bytes; use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use itertools::Itertools; -use muxink::{ - backpressured::{BackpressuredSink, BackpressuredSinkError, BackpressuredStream, Ticket}, - demux::{Demultiplexer, DemultiplexerError, DemultiplexerHandle}, - fragmented::{Defragmentizer, Fragmentizer, SingleFragment}, - framing::{fixed_size::FixedSize, length_delimited::LengthDelimited}, - io::{FrameReader, FrameWriter}, - little_endian::{DecodeError, LittleEndian}, - mux::{ChannelPrefixedFrame, Multiplexer, MultiplexerError, MultiplexerHandle}, - ImmediateFrameU64, -}; +use juliet::rpc::{JulietRpcClient, JulietRpcServer, RpcBuilder}; use prometheus::Registry; use rand::{ seq::{IteratorRandom, SliceRandom}, @@ -86,7 +77,6 @@ use tokio::{ task::JoinHandle, }; use tokio_openssl::SslStream; -use tokio_util::compat::Compat; use tracing::{debug, error, info, trace, warn, Instrument, Span}; use casper_types::{EraId, PublicKey, SecretKey}; @@ -94,7 +84,7 @@ use casper_types::{EraId, PublicKey, SecretKey}; use self::{ blocklist::BlocklistJustification, chain_info::ChainInfo, - error::{ConnectionError, MessageReaderError}, + error::{ConnectionError, MessageReceiverError}, event::{IncomingConnection, OutgoingConnection}, health::{HealthConfig, TaggedTimestamp}, limiter::Limiter, @@ -102,7 +92,7 @@ use self::{ metrics::Metrics, outgoing::{DialOutcome, DialRequest, OutgoingConfig, OutgoingManager}, symmetry::ConnectionSymmetry, - tasks::{EncodedMessage, NetworkContext}, + tasks::NetworkContext, }; pub(crate) use self::{ config::Config, @@ -115,6 +105,7 @@ pub(crate) use self::{ generate_largest_serialized_message, Channel, EstimatorWeights, FromIncoming, Message, MessageKind, Payload, }, + transport::Ticket, }; use crate::{ components::{gossiper::GossipItem, Component, ComponentState, InitializedComponent}, @@ -150,12 +141,6 @@ const BASE_RECONNECTION_TIMEOUT: Duration = Duration::from_secs(1); /// Interval during which to perform outgoing manager housekeeping. const OUTGOING_MANAGER_SWEEP_INTERVAL: Duration = Duration::from_secs(1); -/// The size of a single message fragment sent over the wire. -const MESSAGE_FRAGMENT_SIZE: usize = 4096; - -/// How many bytes of ACKs to read in one go. -const ACK_BUFFER_SIZE: usize = 1024; - /// How often to send a ping down a healthy connection. const PING_INTERVAL: Duration = Duration::from_secs(30); @@ -170,14 +155,10 @@ const PING_TIMEOUT: Duration = Duration::from_secs(6); /// How many pings to send before giving up and dropping the connection. const PING_RETRIES: u16 = 5; -/// How many items to buffer before backpressuring. -// TODO: This should probably be configurable on a per-channel basis. -const BACKPRESSURE_WINDOW_SIZE: u64 = 20; - #[derive(Clone, DataSize, Debug)] pub(crate) struct OutgoingHandle { #[data_size(skip)] // Unfortunately, there is no way to inspect an `UnboundedSender`. - senders: [UnboundedSender; Channel::COUNT], + rpc_client: JulietRpcClient<{ Channel::COUNT }>, peer_addr: SocketAddr, } @@ -210,6 +191,10 @@ where #[data_size(skip)] server_join_handle: Option>, + /// Builder for new node-to-node RPC instances. + #[data_size(skip)] + rpc_builder: RpcBuilder<{ Channel::COUNT }>, + /// Networking metrics. #[data_size(skip)] net_metrics: Arc, @@ -305,12 +290,18 @@ where None => None, }; + let chain_info = chain_info_source.into(); + let rpc_builder = transport::create_rpc_builder( + chain_info.maximum_net_message_size, + cfg.max_in_flight_demands, + ); + let context = Arc::new(NetworkContext::new( cfg.clone(), our_identity, keylog, node_key_pair.map(NodeKeyPair::new), - chain_info_source.into(), + chain_info, &net_metrics, )); @@ -327,6 +318,7 @@ where state: ComponentState::Uninitialized, shutdown_fuse: DropSwitch::new(ObservableFuse::new()), server_join_handle: None, + rpc_builder, _payload: PhantomData, }; @@ -507,35 +499,65 @@ where // Try to send the message. if let Some(connection) = self.outgoing_manager.get_route(dest) { let channel = msg.get_channel(); - let sender = &connection.senders[channel as usize]; + let payload = if let Some(payload) = serialize_network_message(&msg) { payload } else { + // TODO: Note/log that serialization failed. // The `AutoClosingResponder` will respond by itself. return; }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - let send_token = TokenizedCount::new(self.net_metrics.queued_messages.inner().clone()); - - if let Err(refused_message) = - sender.send(EncodedMessage::new(payload, opt_responder, send_token)) + let guard = match connection + .rpc_client + .create_request(channel.into_channel_id()) + .with_payload(payload) + .try_queue_for_sending() { - match deserialize_network_message::

(refused_message.0.payload()) { - Ok(reconstructed_message) => { - // We lost the connection, but that fact has not reached us as an event yet. - debug!(our_id=%self.context.our_id(), %dest, msg=%reconstructed_message, "dropped outgoing message, lost connection"); - } - Err(err) => { - error!(our_id=%self.context.our_id(), - %dest, - reconstruction_error=%err, - payload=?refused_message.0.payload(), - "dropped outgoing message, but also failed to reconstruct it" - ); + Ok(guard) => guard, + Err(builder) => { + // We had to drop the message, since we hit the buffer limit. + debug!(%channel, "node is sending at too high a rate, message dropped"); + + let payload = builder.into_payload().unwrap_or_default(); + match deserialize_network_message::

(&payload) { + Ok(reconstructed_message) => { + debug!(our_id=%self.context.our_id(), %dest, msg=%reconstructed_message, "dropped outgoing message, buffer exhausted"); + } + Err(err) => { + error!(our_id=%self.context.our_id(), + %dest, + reconstruction_error=%err, + ?payload, + "dropped outgoing message, buffer exhausted and also failed to reconstruct it" + ); + } } + + return; + } + }; + + // At this point, we could pass the guard to the original component to allow for + // backpressure to actually propagate. In the current version we are still going with + // the fire-and-forget model though, so simply check for an immediate error, then + // forget. + match guard.try_wait_for_response() { + Ok(Ok(_outcome)) => { + // We got an incredibly quick round-trip, lucky us! Nothing to do. + } + Ok(Err(err)) => { + debug!(%channel, %err, "failed to send message"); + } + Err(guard) => { + // Not done yet, forget. + guard.forget(); } } + + let _send_token = TokenizedCount::new(self.net_metrics.queued_messages.inner().clone()); + // TODO: How to update self.net_metrics.queued_messages? Or simply remove metric? } else { // We are not connected, so the reconnection is likely already in progress. debug!(our_id=%self.context.our_id(), %dest, ?msg, "dropped outgoing message, no connection"); @@ -630,37 +652,16 @@ where // connection after a peer has closed the corresponding incoming connection. } - // TODO: Removal of `CountingTransport` here means some functionality has to be - // restored. - let (read_half, write_half) = tokio::io::split(transport); - // Setup a multiplexed delivery for ACKs (we use the send direction of the incoming - // connection for sending ACKs only). - let write_compat: Compat>> = - tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); - - let ack_writer: AckFrameWriter = - FrameWriter::new(FixedSize::new(ACK_FRAME_SIZE), write_compat); - let ack_carrier = Multiplexer::new(ack_writer); - - // `rust-openssl` does not support the futures 0.3 `AsyncRead` trait (it uses the - // tokio built-in version instead). The compat layer fixes that. - let read_compat: Compat>> = - tokio_util::compat::TokioAsyncReadCompatExt::compat(read_half); - - let frame_reader: IncomingFrameReader = - FrameReader::new(LengthDelimited, read_compat, MESSAGE_FRAGMENT_SIZE); - - let carrier = Arc::new(Mutex::new(Demultiplexer::new(frame_reader))); + let (rpc_client, rpc_server) = self.rpc_builder.build(read_half, write_half); // Now we can start the message reader. let boxed_span = Box::new(span.clone()); effects.extend( tasks::multi_channel_message_receiver( self.context.clone(), - carrier, - ack_carrier, + rpc_server, self.incoming_limiter .create_handle(peer_id, peer_consensus_public_key), self.shutdown_fuse.inner().clone(), @@ -668,11 +669,17 @@ where span.clone(), ) .instrument(span) - .event(move |result| Event::IncomingClosed { - result, - peer_id: Box::new(peer_id), - peer_addr, - span: boxed_span, + .event(move |result| { + // We keep the client around, even though we do not use it, since dropping + // it will cause the connection to be closed from our end. + drop(rpc_client); + + Event::IncomingClosed { + result, + peer_id: Box::new(peer_id), + peer_addr, + span: boxed_span, + } }), ); @@ -683,7 +690,7 @@ where fn handle_incoming_closed( &mut self, - result: Result<(), MessageReaderError>, + result: Result<(), MessageReceiverError>, peer_id: Box, peer_addr: SocketAddr, span: Span, @@ -814,9 +821,14 @@ where } => { info!("new outgoing connection established"); - let (senders, receivers) = unbounded_channels::<_, { Channel::COUNT }>(); + let (read_half, write_half) = tokio::io::split(transport); + + let (rpc_client, rpc_server) = self.rpc_builder.build(read_half, write_half); - let handle = OutgoingHandle { senders, peer_addr }; + let handle = OutgoingHandle { + rpc_client, + peer_addr, + }; let request = self .outgoing_manager @@ -839,36 +851,12 @@ where self.connection_completed(peer_id); } - // `rust-openssl` does not support the futures 0.3 `AsyncWrite` trait (it uses the - // tokio built-in version instead). The compat layer fixes that. - - let (read_half, write_half) = tokio::io::split(transport); - - let read_compat = tokio_util::compat::TokioAsyncReadCompatExt::compat(read_half); - - let ack_reader: AckFrameReader = - FrameReader::new(FixedSize::new(ACK_FRAME_SIZE), read_compat, ACK_BUFFER_SIZE); - let ack_carrier = Arc::new(Mutex::new(Demultiplexer::new(ack_reader))); - - let write_compat = - tokio_util::compat::TokioAsyncWriteCompatExt::compat_write(write_half); - let carrier: OutgoingCarrier = - Multiplexer::new(FrameWriter::new(LengthDelimited, write_compat)); - - effects.extend( - tasks::encoded_message_sender( - receivers, - carrier, - ack_carrier, - self.outgoing_limiter - .create_handle(peer_id, peer_consensus_public_key), - ) - .instrument(span) - .event(move |_| Event::OutgoingDropped { + effects.extend(tasks::rpc_sender_loop(rpc_server).instrument(span).event( + move |_| Event::OutgoingDropped { peer_id: Box::new(peer_id), peer_addr, - }), - ); + }, + )); effects } @@ -1394,66 +1382,17 @@ fn unbounded_channels() -> ([UnboundedSender; N], [Unbound /// Transport type for base encrypted connections. type Transport = SslStream; -/// The writer for outgoing length-prefixed frames. -type OutgoingFrameWriter = FrameWriter< - ChannelPrefixedFrame, - LengthDelimited, - Compat>, +/// Transport-level RPC server. +type RpcServer = JulietRpcServer< + { Channel::COUNT }, + ReadHalf>, + WriteHalf>, >; -/// The multiplexer to send fragments over an underlying frame writer. -type OutgoingCarrier = Multiplexer; - -/// The error type associated with the primary sink implementation. -type OutgoingChannelError = - BackpressuredSinkError, DecodeError>>; - -/// An instance of a channel on an outgoing carrier. -type OutgoingChannel = BackpressuredSink< - Fragmentizer, Bytes>, - IncomingAckChannel, - Bytes, ->; - -/// The reader for incoming length-prefixed frames. -type IncomingFrameReader = FrameReader>>; - -/// The demultiplexer that seperates channels sent through the underlying frame reader. -type IncomingCarrier = Demultiplexer; - -/// An instance of a channel on an incoming carrier. -type IncomingChannel = BackpressuredStream< - Defragmentizer>, - OutgoingAckChannel, - Bytes, ->; - -/// Frame writer for ACKs, sent back over the incoming connection. -type AckFrameWriter = - FrameWriter, FixedSize, Compat>>; - -/// ACK frames are 9 bytes (channel prefix + `u64`). -const ACK_FRAME_SIZE: usize = 9; - -/// Frame reader for ACKs, received through an outgoing connection. -type AckFrameReader = FrameReader>>; - -/// Multiplexer sending ACKs for various channels over an `AckFrameWriter`. -type OutgoingAckCarrier = Multiplexer; - -/// Outgoing ACK sink. -type OutgoingAckChannel = LittleEndian>; - -/// Demultiplexer receiving ACKs for various channels over an `AckFrameReader`. -type IncomingAckCarrier = Demultiplexer; - -/// Incoming ACK stream. -type IncomingAckChannel = LittleEndian>; - /// Setups bincode encoding used on the networking transport. fn bincode_config() -> impl Options { bincode::options() - .with_no_limit() // We rely on `muxink` to impose limits. + .with_no_limit() // We rely on `juliet` to impose limits. .with_little_endian() // Default at the time of this writing, we are merely pinning it. .with_varint_encoding() // Same as above. .reject_trailing_bytes() // There is no reason for us not to reject trailing bytes. diff --git a/node/src/components/network/config.rs b/node/src/components/network/config.rs index bae7d3867f..a23e1f767c 100644 --- a/node/src/components/network/config.rs +++ b/node/src/components/network/config.rs @@ -111,7 +111,7 @@ pub struct Config { /// The chance, expressed as a number between 0.0 and 1.0, of triggering the tarpit. pub tarpit_chance: f32, /// Maximum number of demands for objects that can be in-flight. - pub max_in_flight_demands: u32, + pub max_in_flight_demands: u16, /// Duration peers are kept on the block list, before being redeemed. pub blocklist_retain_duration: TimeDiff, /// Network identity configuration option. diff --git a/node/src/components/network/error.rs b/node/src/components/network/error.rs index 7515a8972b..8ab676d81c 100644 --- a/node/src/components/network/error.rs +++ b/node/src/components/network/error.rs @@ -1,10 +1,7 @@ use std::{io, net::SocketAddr}; use datasize::DataSize; -use muxink::{ - backpressured::BackpressuredStreamError, demux::DemultiplexerError, - fragmented::DefragmentizerError, mux::MultiplexerError, -}; +use juliet::rpc::{IncomingRequest, RpcServerError}; use openssl::{error::ErrorStack, ssl}; use serde::Serialize; use thiserror::Error; @@ -221,22 +218,22 @@ pub enum RawFrameIoError { /// An error produced by reading messages. #[derive(Debug, Error)] -pub enum MessageReaderError { - /// The semaphore that limits trie demands was closed unexpectedly. - #[error("demand limiter semaphore closed unexpectedly")] - #[allow(dead_code)] // TODO: Re-add if necessary, if backpressure requires this still. - UnexpectedSemaphoreClose, +pub enum MessageReceiverError { /// The message receival stack returned an error. - #[error("message receive error")] - ReceiveError( - BackpressuredStreamError< - DefragmentizerError>, - MultiplexerError, - >, - ), + #[error(transparent)] + ReceiveError(#[from] RpcServerError), + /// Empty request sent. + /// + /// This should never happen with a well-behaved client, since the current protocol always + /// expects a request to carry a payload. + #[error("empty request")] + EmptyRequest, /// Error deserializing message. #[error("message deserialization error")] DeserializationError(bincode::Error), + /// Invalid channel. + #[error("invalid channel: {0}")] + InvalidChannel(u8), /// Wrong channel for received message. #[error("received a {got} message on channel {expected}")] WrongChannel { @@ -246,3 +243,12 @@ pub enum MessageReaderError { expected: Channel, }, } + +/// Error produced by sending messages. +#[derive(Debug, Error)] +pub enum MessageSenderError { + #[error("received a request on a send-only channel: {0}")] + UnexpectedIncomingRequest(IncomingRequest), + #[error(transparent)] + JulietRpcServerError(#[from] RpcServerError), +} diff --git a/node/src/components/network/event.rs b/node/src/components/network/event.rs index e99c30247c..6166d47d9f 100644 --- a/node/src/components/network/event.rs +++ b/node/src/components/network/event.rs @@ -5,7 +5,6 @@ use std::{ }; use derive_more::From; -use muxink::backpressured::Ticket; use serde::Serialize; use static_assertions::const_assert; use tracing::Span; @@ -13,8 +12,8 @@ use tracing::Span; use casper_types::PublicKey; use super::{ - error::{ConnectionError, MessageReaderError}, - GossipedAddress, Message, NodeId, Transport, + error::{ConnectionError, MessageReceiverError}, + GossipedAddress, Message, NodeId, Ticket, Transport, }; use crate::{ effect::{ @@ -57,7 +56,7 @@ where /// Incoming connection closed. IncomingClosed { #[serde(skip_serializing)] - result: Result<(), MessageReaderError>, + result: Result<(), MessageReceiverError>, peer_id: Box, peer_addr: SocketAddr, #[serde(skip_serializing)] diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index 900a2bc6db..d8f4aad122 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -6,7 +6,7 @@ use std::{ use datasize::DataSize; use futures::future::BoxFuture; -use muxink::backpressured::Ticket; +use juliet::ChannelId; use serde::{ de::{DeserializeOwned, Error as SerdeError}, Deserialize, Deserializer, Serialize, Serializer, @@ -18,7 +18,7 @@ use casper_hashing::Digest; use casper_types::testing::TestRng; use casper_types::{crypto, AsymmetricType, ProtocolVersion, PublicKey, SecretKey, Signature}; -use super::{connection_id::ConnectionId, health::Nonce, serialize_network_message}; +use super::{connection_id::ConnectionId, health::Nonce, serialize_network_message, Ticket}; use crate::{ effect::EffectBuilder, protocol, @@ -395,6 +395,13 @@ pub enum Channel { BulkGossip = 6, } +impl Channel { + #[inline(always)] + pub(crate) fn into_channel_id(self) -> ChannelId { + ChannelId::new(self as u8) + } +} + /// Network message payload. /// /// Payloads are what is transferred across the network outside of control messages from the diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 09f744d821..93145344f4 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -1,40 +1,27 @@ //! Tasks run by the component. use std::{ - convert::Infallible, fmt::Display, net::SocketAddr, - num::NonZeroUsize, pin::Pin, - sync::{Arc, Mutex, Weak}, + sync::{Arc, Weak}, }; -use bytes::Bytes; use futures::{ future::{self, Either}, pin_mut, - prelude::stream::SelectAll, - stream::FuturesUnordered, - Sink, SinkExt, StreamExt, }; -use muxink::{ - backpressured::{BackpressuredSink, BackpressuredStream}, - demux::Demultiplexer, - fragmented::{Defragmentizer, Fragmentizer}, - little_endian::LittleEndian, -}; use openssl::{ pkey::{PKey, Private}, ssl::Ssl, x509::X509, }; use serde::de::DeserializeOwned; -use strum::{EnumCount, IntoEnumIterator}; -use tokio::{net::TcpStream, sync::mpsc::UnboundedReceiver}; +use tokio::net::TcpStream; use tokio_openssl::SslStream; use tracing::{ - debug, error, error_span, + debug, error_span, field::{self, Empty}, info, trace, warn, Instrument, Span, }; @@ -44,65 +31,27 @@ use casper_types::{ProtocolVersion, TimeDiff}; use super::{ chain_info::ChainInfo, connection_id::ConnectionId, - error::{ConnectionError, MessageReaderError}, + error::{ConnectionError, MessageReceiverError, MessageSenderError}, event::{IncomingConnection, OutgoingConnection}, limiter::LimiterHandle, message::NodeKeyPair, - Channel, EstimatorWeights, Event, FromIncoming, Identity, IncomingAckCarrier, IncomingCarrier, - IncomingChannel, Message, Metrics, OutgoingAckCarrier, OutgoingAckChannel, OutgoingCarrier, - OutgoingChannel, OutgoingChannelError, Payload, Transport, BACKPRESSURE_WINDOW_SIZE, - MESSAGE_FRAGMENT_SIZE, + Channel, EstimatorWeights, Event, FromIncoming, Identity, Message, Metrics, Payload, RpcServer, + Transport, }; use crate::{ components::network::{ deserialize_network_message, handshake::{negotiate_handshake, HandshakeOutcome}, - Config, IncomingAckChannel, - }, - effect::{ - announcements::PeerBehaviorAnnouncement, requests::NetworkRequest, AutoClosingResponder, + Config, Ticket, }, + effect::{announcements::PeerBehaviorAnnouncement, requests::NetworkRequest}, reactor::{EventQueueHandle, QueueKind}, tls::{self, TlsCert, ValidationError}, types::NodeId, - utils::{display_error, Fuse, LockedLineWriter, ObservableFuse, Peel, TokenizedCount}, + utils::{display_error, LockedLineWriter, ObservableFuse, Peel}, }; -/// An encoded network message, ready to be sent out. -#[derive(Debug)] -pub(super) struct EncodedMessage { - /// The encoded payload of the outgoing message. - payload: Bytes, - /// The responder to send the notification once the message has been flushed or dropped. - /// - /// If `None`, the sender is not interested in knowing. - send_finished: Option>, - /// We track the number of messages still buffered in memory, the token ensures accurate - /// counts. - send_token: TokenizedCount, -} - -impl EncodedMessage { - /// Creates a new encoded message. - pub(super) fn new( - payload: Bytes, - send_finished: Option>, - send_token: TokenizedCount, - ) -> Self { - Self { - payload, - send_finished, - send_token, - } - } - - /// Get the encoded message's payload. - pub(super) fn payload(&self) -> &Bytes { - &self.payload - } -} - /// Low-level TLS connection function. /// /// Performs the actual TCP+TLS connection setup. @@ -520,13 +469,12 @@ pub(super) async fn server( /// Multi-channel message receiver. pub(super) async fn multi_channel_message_receiver( context: Arc>, - carrier: Arc>, - ack_carrier: OutgoingAckCarrier, + mut rpc_server: RpcServer, limiter: LimiterHandle, shutdown: ObservableFuse, peer_id: NodeId, span: Span, -) -> Result<(), MessageReaderError> +) -> Result<(), MessageReceiverError> where P: DeserializeOwned + Send + Display + Payload, REv: From> @@ -535,60 +483,52 @@ where + From + Send, { - // We create a single select that returns items from all the streams. - let mut select = SelectAll::new(); - for channel in Channel::iter() { - let demux_handle = - Demultiplexer::create_handle::<::std::io::Error>(carrier.clone(), channel as u8) - .expect("mutex poisoned"); - - let ack_sink: OutgoingAckChannel = - LittleEndian::new(ack_carrier.create_channel_handle(channel as u8)); - - let incoming: IncomingChannel = BackpressuredStream::new( - Defragmentizer::new( - context.chain_info.maximum_net_message_size as usize, - demux_handle, - ), - ack_sink, - BACKPRESSURE_WINDOW_SIZE, - ); - - select.push(incoming.map(move |frame| (channel, frame))); - } - // Core receival loop. loop { - let next_item = select.next(); + let next_item = rpc_server.next_request(); + + // TODO: Get rid of shutdown fuse, we can drop the client instead? let wait_for_close_incoming = shutdown.wait(); + pin_mut!(next_item); pin_mut!(wait_for_close_incoming); - let (channel, (frame, ticket)) = match future::select(next_item, wait_for_close_incoming) + let request = match future::select(next_item, wait_for_close_incoming) .await .peel() { - Either::Left(Some((channel, result))) => { - (channel, result.map_err(MessageReaderError::ReceiveError)?) - } - Either::Left(None) => { - // We ran out of channels. Should not happen with at least one channel defined. - error!("did not expect to run out of channels to read"); - - return Ok(()); + Either::Left(outcome) => { + if let Some(request) = outcome? { + request + } else { + { + // Remote closed the connection. + return Ok(()); + } + } } - Either::Right(_) => { - debug!("message reader shutdown requested"); + Either::Right(()) => { + // We were asked to shut down. return Ok(()); } }; - let msg: Message

= deserialize_network_message(&frame) - .map_err(MessageReaderError::DeserializationError)?; + let channel = Channel::from_repr(request.channel().get()) + .ok_or_else(|| MessageReceiverError::InvalidChannel(request.channel().get()))?; + let payload = request + .payload() + .as_ref() + .ok_or_else(|| MessageReceiverError::EmptyRequest)?; + + let msg: Message

= deserialize_network_message(payload) + .map_err(MessageReceiverError::DeserializationError)?; trace!(%msg, %channel, "message received"); - // The limiter stops _all_ channels, as they share a resource pool anyway. + // TODO: Limiting on top of backpressuring is suboptimal - a better approach is to priorize + // incoming message requests. This is also problematic since the IO loop needs to keep + // on running. + limiter .request_allowance(msg.payload_incoming_resource_estimate(&context.payload_weights)) .await; @@ -597,7 +537,7 @@ where // TODO: Verify we still need this. let msg_channel = msg.get_channel(); if msg_channel != channel { - return Err(MessageReaderError::WrongChannel { + return Err(MessageReceiverError::WrongChannel { got: msg_channel, expected: channel, }); @@ -617,7 +557,7 @@ where peer_id: Box::new(peer_id), msg: Box::new(msg), span: span.clone(), - ticket, + ticket: Ticket::from_rpc_request(request), }, queue_kind, ) @@ -625,128 +565,18 @@ where } } -/// Multi-channel encoded message sender. -/// -/// This tasks starts multiple message senders, each handling a single outgoing channel on the given -/// carrier. -/// -/// A channel sender will shut down if its receiving channel is closed or an error occurs. Once at -/// least one channel sender has shut down for any reason, the others will be signaled to shut down -/// as well. +/// RPC sender task. /// -/// This function only returns when all senders have been shut down. -pub(super) async fn encoded_message_sender( - queues: [UnboundedReceiver; Channel::COUNT], - carrier: OutgoingCarrier, - ack_carrier: Arc>, - limiter: LimiterHandle, -) -> Result<(), OutgoingChannelError> { - // TODO: Once the necessary methods are stabilized, setup const fns to initialize - // `MESSAGE_FRAGMENT_SIZE` as a `NonZeroUsize` directly. - let fragment_size = NonZeroUsize::new(MESSAGE_FRAGMENT_SIZE).unwrap(); - let local_stop: ObservableFuse = ObservableFuse::new(); - - let mut boiler_room = FuturesUnordered::new(); - - for (channel, queue) in Channel::iter().zip(IntoIterator::into_iter(queues)) { - let mux_handle = carrier.create_channel_handle(channel as u8); - - // Note: We use `Infallibe` here, since we do not care about the actual API. - // TODO: The `muxink` API could probably be improved here to not require an `E` parameter. - let ack_demux_handle = - Demultiplexer::create_handle::(ack_carrier.clone(), channel as u8) - .expect("handle creation should not fail"); - - let ack_stream: IncomingAckChannel = LittleEndian::new(ack_demux_handle); - - let outgoing: OutgoingChannel = BackpressuredSink::new( - Fragmentizer::new(fragment_size, mux_handle), - ack_stream, - BACKPRESSURE_WINDOW_SIZE, - ); - - boiler_room.push(shovel_data( - channel, - queue, - outgoing, - local_stop.clone(), - limiter.clone(), - )); - } - - // We track only the first result we receive from a sender, as subsequent errors may just be - // caused by the first one shutting down and are not the root cause. - let mut first_result = None; - - while let Some(sender_outcome) = boiler_room.next().await { - debug!(outcome=?sender_outcome, "sender stopped"); - - if first_result.is_none() { - first_result = Some(sender_outcome); - } - - // Signal all other senders stop as well. - local_stop.set(); - } - - // There are no more running senders left, so we can finish. - debug!("all senders finished"); - first_result.unwrap_or(Ok(())) -} - -/// Receives network messages from an async channel, encodes and forwards it into a suitable sink. -/// -/// Will loop forever, until either told to stop through the `stop` flag, or a send error occurs. -async fn shovel_data( - channel: Channel, - mut source: UnboundedReceiver, - mut dest: S, - stop: ObservableFuse, - limiter: LimiterHandle, -) -> Result<(), >::Error> -where - S: Sink + Unpin, -{ - trace!(%channel, "starting data shoveller for channel"); +/// While the sending connection does not receive any messages, it is still necessary to run the +/// server portion in a loop to ensure outgoing messages are actually processed. +pub(super) async fn rpc_sender_loop(mut rpc_server: RpcServer) -> Result<(), MessageSenderError> { loop { - let recv = source.recv(); - pin_mut!(recv); - let stop_wait = stop.wait(); - pin_mut!(stop_wait); - - match future::select(recv, stop_wait).await.peel() { - Either::Left(Some(EncodedMessage { - payload: data, - send_finished, - send_token, - })) => { - let encoded_size = data.len(); - let has_responder = send_finished.is_some(); - trace!(%channel, encoded_size, has_responder, "attempting to send payload"); - limiter.request_allowance(data.len() as u32).await; - // Note: It may be tempting to use `feed()` instead of `send()` when no responder - // is present, since after all the sender is only guaranteed an eventual - // attempt of delivery and we can save a flush this way. However this leads - // to extreme delays and failing synthetical tests in the absence of other - // traffic, so the extra flush is the lesser of two evils until we implement - // and leverage a multi-message sending API. - dest.send(data).await?; - if let Some(responder) = send_finished { - responder.respond(()).await; - } - - trace!(%channel, encoded_size, has_responder, "finished sending payload"); - // We only drop the token once the message is sent or at least buffered. - drop(send_token); - } - Either::Left(None) => { - trace!("sink closed"); - return Ok(()); - } - Either::Right(_) => { - trace!("received stop signal"); - return Ok(()); - } + if let Some(incoming_request) = rpc_server.next_request().await? { + return Err(MessageSenderError::UnexpectedIncomingRequest( + incoming_request, + )); + } else { + // Connection closed regularly. } } } diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index c0225151d0..f392a6ee44 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -12,7 +12,6 @@ use std::{ use derive_more::From; use futures::FutureExt; -use muxink::backpressured::Ticket; use prometheus::Registry; use reactor::ReactorEvent; use serde::{Deserialize, Serialize}; @@ -23,7 +22,7 @@ use casper_types::SecretKey; use super::{ chain_info::ChainInfo, unbounded_channels, Config, Event as NetworkEvent, FromIncoming, - GossipedAddress, Identity, MessageKind, Network, Payload, + GossipedAddress, Identity, MessageKind, Network, Payload, Ticket, }; use crate::{ components::{ diff --git a/node/src/components/network/transport.rs b/node/src/components/network/transport.rs new file mode 100644 index 0000000000..626b004b0d --- /dev/null +++ b/node/src/components/network/transport.rs @@ -0,0 +1,77 @@ +//! Low-level network transport configuration. +//! +//! The low-level transport is built on top of an existing TLS stream, handling all multiplexing. It +//! is based on a configuration of the Juliet protocol implemented in the `juliet` crate. + +use juliet::{rpc::IncomingRequest, ChannelConfiguration}; +use strum::EnumCount; + +use super::Channel; + +/// Creats a new RPC builder with the currently fixed Juliet configuration. +/// +/// The resulting `RpcBuilder` can be reused for multiple connections. +pub(super) fn create_rpc_builder( + maximum_message_size: u32, + max_in_flight_demands: u16, +) -> juliet::rpc::RpcBuilder<{ Channel::COUNT }> { + // Note: `maximum_message_size` is a bit misleading, since it is actually the maximum payload + // size. In the future, the chainspec setting should be overhauled and the + // one-size-fits-all limit replaced with a per-channel limit. Similarly, + // `max_in_flight_demands` should be tweaked on a per-channel basis. + + // Since we do not currently configure individual message size limits and make no distinction + // between requests and responses, we simply set all limits to the maximum message size. + let channel_cfg = ChannelConfiguration::new() + .with_request_limit(max_in_flight_demands) + .with_max_request_payload_size(maximum_message_size) + .with_max_response_payload_size(maximum_message_size); + + let protocol = juliet::protocol::ProtocolBuilder::with_default_channel_config(channel_cfg); + + // TODO: Figure out a good value for buffer sizes. + let io_core = juliet::io::IoCoreBuilder::with_default_buffer_size( + protocol, + max_in_flight_demands.min(20) as usize, + ); + + juliet::rpc::RpcBuilder::new(io_core) +} + +/// Adapter for incoming Juliet requests. +/// +/// At this time the node does not take full advantage of the Juliet RPC capabilities, relying on +/// its older message+ACK based model introduced with `muxink`. In this model, every message is only +/// acknowledged, with no request-response association being done. The ACK indicates that the peer +/// is free to send another message. +/// +/// The [`Ticket`] type is used to track the processing of an incoming message or its resulting +/// operations; it should dropped once the resources for doing so have been spent, but no earlier. +/// +/// Dropping it will cause an "ACK", which in the Juliet transport's case is an empty response, to +/// be sent. Cancellations or responses with actual payloads are not used at this time. +#[derive(Debug)] +pub(crate) struct Ticket(Option); + +impl Ticket { + #[inline(always)] + pub(super) fn from_rpc_request(incoming_request: IncomingRequest) -> Self { + Ticket(Some(incoming_request)) + } + + #[cfg(test)] + #[inline(always)] + pub(crate) fn create_dummy() -> Self { + Ticket(None) + } +} + +impl Drop for Ticket { + #[inline(always)] + fn drop(&mut self) { + // Currently, we simply send a request confirmation in the for of an `ACK`. + if let Some(incoming_request) = self.0.take() { + incoming_request.respond(None); + } + } +} diff --git a/node/src/effect.rs b/node/src/effect.rs index 912a572f46..9709132daf 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -108,7 +108,6 @@ use std::{ use datasize::DataSize; use futures::{channel::oneshot, future::BoxFuture, FutureExt}; -use muxink::backpressured::Ticket; use once_cell::sync::Lazy; use serde::{Serialize, Serializer}; use smallvec::{smallvec, SmallVec}; @@ -142,7 +141,7 @@ use crate::{ diagnostics_port::StopAtSpec, fetcher::{FetchItem, FetchResult}, gossiper::GossipItem, - network::{blocklist::BlocklistJustification, FromIncoming, NetworkInsights}, + network::{blocklist::BlocklistJustification, FromIncoming, NetworkInsights, Ticket}, upgrade_watcher::NextUpgrade, }, contract_runtime::SpeculativeExecutionState, diff --git a/node/src/effect/incoming.rs b/node/src/effect/incoming.rs index f3f63f57b9..a88cfc6bde 100644 --- a/node/src/effect/incoming.rs +++ b/node/src/effect/incoming.rs @@ -8,11 +8,10 @@ use std::{ }; use datasize::DataSize; -use muxink::backpressured::Ticket; use serde::Serialize; use crate::{ - components::{consensus, fetcher::Tag, gossiper}, + components::{consensus, fetcher::Tag, gossiper, network::Ticket}, protocol::Message, types::{FinalitySignature, NodeId, TrieOrChunkIdDisplay}, }; diff --git a/node/src/protocol.rs b/node/src/protocol.rs index deaa4ad651..7533420113 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -9,7 +9,6 @@ use derive_more::From; use fmt::Debug; use futures::{future::BoxFuture, FutureExt}; use hex_fmt::HexFmt; -use muxink::backpressured::Ticket; use serde::{Deserialize, Serialize}; use strum::EnumDiscriminants; @@ -18,7 +17,9 @@ use crate::{ consensus, fetcher::{FetchItem, FetchResponse, Tag}, gossiper, - network::{Channel, EstimatorWeights, FromIncoming, GossipedAddress, MessageKind, Payload}, + network::{ + Channel, EstimatorWeights, FromIncoming, GossipedAddress, MessageKind, Payload, Ticket, + }, }, effect::{ incoming::{ From a84107ac0b897fe18045b32320a06e6acf5595a3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 10 Aug 2023 16:10:17 +0200 Subject: [PATCH 611/735] Remove incoming message limiter, to be replaced with queue-based solution --- node/CHANGELOG.md | 3 +- node/src/components/network.rs | 21 +------ node/src/components/network/config.rs | 5 -- node/src/components/network/message.rs | 73 ------------------------ node/src/components/network/metrics.rs | 7 --- node/src/components/network/tasks.rs | 16 +----- node/src/components/network/tests.rs | 4 -- node/src/protocol.rs | 39 +------------ resources/local/config.toml | 30 ---------- resources/production/config-example.toml | 27 --------- 10 files changed, 5 insertions(+), 220 deletions(-) diff --git a/node/CHANGELOG.md b/node/CHANGELOG.md index e6d0770e83..3577e3ebf6 100644 --- a/node/CHANGELOG.md +++ b/node/CHANGELOG.md @@ -20,7 +20,8 @@ All notable changes to this project will be documented in this file. The format * The `state_identifier` parameter of the `query_global_state` JSON-RPC method is now optional. If no `state_identifier` is specified, the highest complete block known to the node will be used to fulfill the request. * The underlying network protocol has been changed, now supports multiplexing for better latency and proper backpressuring across nodes. - +### Removed +* There is no more weighted rate limiting on incoming traffic, instead the nodes dynamically adjusts allowed rates from peers based on available resources. This resulted in the removal of the `estimator_weights` configuration option and the `accumulated_incoming_limiter_delay` metric. ## 1.5.2 diff --git a/node/src/components/network.rs b/node/src/components/network.rs index e4ff2f932a..150317c876 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -102,8 +102,7 @@ pub(crate) use self::{ identity::Identity, insights::NetworkInsights, message::{ - generate_largest_serialized_message, Channel, EstimatorWeights, FromIncoming, Message, - MessageKind, Payload, + generate_largest_serialized_message, Channel, FromIncoming, Message, MessageKind, Payload, }, transport::Ticket, }; @@ -203,12 +202,6 @@ where #[data_size(skip)] outgoing_limiter: Limiter, - /// The limiter for incoming resource usage. - /// - /// This is not incoming bandwidth but an independent resource estimate. - #[data_size(skip)] - incoming_limiter: Limiter, - /// The era that is considered the active era by the network component. active_era: EraId, @@ -251,15 +244,6 @@ where validator_matrix.clone(), ); - let incoming_limiter = Limiter::new( - cfg.max_incoming_message_rate_non_validators, - net_metrics - .accumulated_incoming_limiter_delay - .inner() - .clone(), - validator_matrix, - ); - let outgoing_manager = OutgoingManager::with_metrics( OutgoingConfig { retry_attempts: RECONNECTION_ATTEMPTS, @@ -312,7 +296,6 @@ where connection_symmetries: HashMap::new(), net_metrics, outgoing_limiter, - incoming_limiter, // We start with an empty set of validators for era 0 and expect to be updated. active_era: EraId::new(0), state: ComponentState::Uninitialized, @@ -662,8 +645,6 @@ where tasks::multi_channel_message_receiver( self.context.clone(), rpc_server, - self.incoming_limiter - .create_handle(peer_id, peer_consensus_public_key), self.shutdown_fuse.inner().clone(), peer_id, span.clone(), diff --git a/node/src/components/network/config.rs b/node/src/components/network/config.rs index a23e1f767c..4e98802dd5 100644 --- a/node/src/components/network/config.rs +++ b/node/src/components/network/config.rs @@ -6,8 +6,6 @@ use casper_types::{ProtocolVersion, TimeDiff}; use datasize::DataSize; use serde::{Deserialize, Serialize}; -use super::EstimatorWeights; - /// Default binding address. /// /// Uses a fixed port per node, but binds on any interface. @@ -47,7 +45,6 @@ impl Default for Config { max_incoming_peer_connections: 0, max_outgoing_byte_rate_non_validators: 0, max_incoming_message_rate_non_validators: 0, - estimator_weights: Default::default(), tarpit_version_threshold: None, tarpit_duration: TimeDiff::from_seconds(600), tarpit_chance: 0.2, @@ -102,8 +99,6 @@ pub struct Config { pub max_outgoing_byte_rate_non_validators: u32, /// Maximum of requests answered from non-validating peers. Unlimited if 0. pub max_incoming_message_rate_non_validators: u32, - /// Weight distribution for the payload impact estimator. - pub estimator_weights: EstimatorWeights, /// The protocol version at which (or under) tarpitting is enabled. pub tarpit_version_threshold: Option, /// If tarpitting is enabled, duration for which connections should be kept open. diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index d8f4aad122..e977d84e74 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -4,7 +4,6 @@ use std::{ sync::Arc, }; -use datasize::DataSize; use futures::future::BoxFuture; use juliet::ChannelId; use serde::{ @@ -89,43 +88,6 @@ impl Message

{ } } - /// Returns the incoming resource estimate of the payload. - #[inline] - pub(super) fn payload_incoming_resource_estimate(&self, weights: &EstimatorWeights) -> u32 { - match self { - Message::Handshake { .. } => 0, - // Ping and Pong have a hardcoded weights. Since every ping will result in a pong being - // sent as a reply, it has a higher weight. - Message::Ping { .. } => 2, - Message::Pong { .. } => 1, - Message::Payload(payload) => payload.incoming_resource_estimate(weights), - } - } - - /// Attempts to create a demand-event from this message. - /// - /// Succeeds if the outer message contains a payload that can be converted into a demand. - #[allow(dead_code)] // TODO: Readd if necessary for backpressure. - pub(super) fn try_into_demand( - self, - effect_builder: EffectBuilder, - sender: NodeId, - ) -> Result<(REv, BoxFuture<'static, Option

>), Box> - where - REv: FromIncoming

+ Send, - { - match self { - Message::Handshake { .. } | Message::Ping { .. } | Message::Pong { .. } => { - Err(self.into()) - } - Message::Payload(payload) => { - // Note: For now, the wrapping/unwrap of the payload is a bit unfortunate here. - REv::try_demand_from_incoming(effect_builder, sender, payload) - .map_err(|err| Message::Payload(err).into()) - } - } - } - /// Determine which channel this message should be sent on. pub(super) fn get_channel(&self) -> Channel { match self { @@ -412,9 +374,6 @@ pub(crate) trait Payload: /// Classifies the payload based on its contents. fn message_kind(&self) -> MessageKind; - /// The penalty for resource usage of a message to be applied when processed as incoming. - fn incoming_resource_estimate(&self, _weights: &EstimatorWeights) -> u32; - /// Determines if the payload should be considered low priority. fn is_low_priority(&self) -> bool { false @@ -447,38 +406,6 @@ pub(crate) trait FromIncoming

{ Err(payload) } } -/// A generic configuration for payload weights. -/// -/// Implementors of `Payload` are free to interpret this as they see fit. -/// -/// The default implementation sets all weights to zero. -#[derive(DataSize, Debug, Default, Clone, Deserialize, Serialize)] -pub struct EstimatorWeights { - pub consensus: u32, - pub block_gossip: u32, - pub deploy_gossip: u32, - pub finality_signature_gossip: u32, - pub address_gossip: u32, - pub finality_signature_broadcasts: u32, - pub deploy_requests: u32, - pub deploy_responses: u32, - pub legacy_deploy_requests: u32, - pub legacy_deploy_responses: u32, - pub block_requests: u32, - pub block_responses: u32, - pub block_header_requests: u32, - pub block_header_responses: u32, - pub trie_requests: u32, - pub trie_responses: u32, - pub finality_signature_requests: u32, - pub finality_signature_responses: u32, - pub sync_leap_requests: u32, - pub sync_leap_responses: u32, - pub approvals_hashes_requests: u32, - pub approvals_hashes_responses: u32, - pub execution_results_requests: u32, - pub execution_results_responses: u32, -} mod specimen_support { use std::iter; diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index 60de859313..c6ccf5d8fb 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -118,8 +118,6 @@ pub(super) struct Metrics { /// Total time spent delaying outgoing traffic to non-validators due to limiter, in seconds. pub(super) accumulated_outgoing_limiter_delay: RegisteredMetric, - /// Total time spent delaying incoming traffic from non-validators due to limiter, in seconds. - pub(super) accumulated_incoming_limiter_delay: RegisteredMetric, } impl Metrics { @@ -336,10 +334,6 @@ impl Metrics { "accumulated_outgoing_limiter_delay", "seconds spent delaying outgoing traffic to non-validators due to limiter, in seconds", )?; - let accumulated_incoming_limiter_delay = registry.new_counter( - "accumulated_incoming_limiter_delay", - "seconds spent delaying incoming traffic from non-validators due to limiter, in seconds." - )?; Ok(Metrics { broadcast_requests, @@ -394,7 +388,6 @@ impl Metrics { requests_for_trie_accepted, requests_for_trie_finished, accumulated_outgoing_limiter_delay, - accumulated_incoming_limiter_delay, }) } diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 93145344f4..a80ca885cd 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -33,10 +33,8 @@ use super::{ connection_id::ConnectionId, error::{ConnectionError, MessageReceiverError, MessageSenderError}, event::{IncomingConnection, OutgoingConnection}, - limiter::LimiterHandle, message::NodeKeyPair, - Channel, EstimatorWeights, Event, FromIncoming, Identity, Message, Metrics, Payload, RpcServer, - Transport, + Channel, Event, FromIncoming, Identity, Message, Metrics, Payload, RpcServer, Transport, }; use crate::{ @@ -188,8 +186,6 @@ where public_addr: Option, /// Timeout for handshake completion. pub(super) handshake_timeout: TimeDiff, - /// Weights to estimate payloads with. - payload_weights: EstimatorWeights, /// The protocol version at which (or under) tarpitting is enabled. tarpit_version_threshold: Option, /// If tarpitting is enabled, duration for which connections should be kept open. @@ -235,7 +231,6 @@ impl NetworkContext { chain_info, node_key_pair, handshake_timeout: cfg.handshake_timeout, - payload_weights: cfg.estimator_weights.clone(), tarpit_version_threshold: cfg.tarpit_version_threshold, tarpit_duration: cfg.tarpit_duration, tarpit_chance: cfg.tarpit_chance, @@ -470,7 +465,6 @@ pub(super) async fn server( pub(super) async fn multi_channel_message_receiver( context: Arc>, mut rpc_server: RpcServer, - limiter: LimiterHandle, shutdown: ObservableFuse, peer_id: NodeId, span: Span, @@ -525,14 +519,6 @@ where trace!(%msg, %channel, "message received"); - // TODO: Limiting on top of backpressuring is suboptimal - a better approach is to priorize - // incoming message requests. This is also problematic since the IO loop needs to keep - // on running. - - limiter - .request_allowance(msg.payload_incoming_resource_estimate(&context.payload_weights)) - .await; - // Ensure the peer did not try to sneak in a message on a different channel. // TODO: Verify we still need this. let msg_channel = msg.get_channel(); diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index f392a6ee44..2584b85ec1 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -160,10 +160,6 @@ impl Payload for Message { } } - fn incoming_resource_estimate(&self, _weights: &super::EstimatorWeights) -> u32 { - 0 - } - fn get_channel(&self) -> super::Channel { super::Channel::Network } diff --git a/node/src/protocol.rs b/node/src/protocol.rs index 7533420113..1d23085601 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -17,9 +17,7 @@ use crate::{ consensus, fetcher::{FetchItem, FetchResponse, Tag}, gossiper, - network::{ - Channel, EstimatorWeights, FromIncoming, GossipedAddress, MessageKind, Payload, Ticket, - }, + network::{Channel, FromIncoming, GossipedAddress, MessageKind, Payload, Ticket}, }, effect::{ incoming::{ @@ -113,41 +111,6 @@ impl Payload for Message { } } - #[inline] - fn incoming_resource_estimate(&self, weights: &EstimatorWeights) -> u32 { - match self { - Message::Consensus(_) => weights.consensus, - Message::ConsensusRequest(_) => weights.consensus, - Message::BlockGossiper(_) => weights.block_gossip, - Message::DeployGossiper(_) => weights.deploy_gossip, - Message::FinalitySignatureGossiper(_) => weights.finality_signature_gossip, - Message::AddressGossiper(_) => weights.address_gossip, - Message::GetRequest { tag, .. } => match tag { - Tag::Deploy => weights.deploy_requests, - Tag::LegacyDeploy => weights.legacy_deploy_requests, - Tag::Block => weights.block_requests, - Tag::BlockHeader => weights.block_header_requests, - Tag::TrieOrChunk => weights.trie_requests, - Tag::FinalitySignature => weights.finality_signature_requests, - Tag::SyncLeap => weights.sync_leap_requests, - Tag::ApprovalsHashes => weights.approvals_hashes_requests, - Tag::BlockExecutionResults => weights.execution_results_requests, - }, - Message::GetResponse { tag, .. } => match tag { - Tag::Deploy => weights.deploy_responses, - Tag::LegacyDeploy => weights.legacy_deploy_responses, - Tag::Block => weights.block_responses, - Tag::BlockHeader => weights.block_header_responses, - Tag::TrieOrChunk => weights.trie_responses, - Tag::FinalitySignature => weights.finality_signature_responses, - Tag::SyncLeap => weights.sync_leap_responses, - Tag::ApprovalsHashes => weights.approvals_hashes_responses, - Tag::BlockExecutionResults => weights.execution_results_responses, - }, - Message::FinalitySignature(_) => weights.finality_signature_broadcasts, - } - } - #[inline] fn get_channel(&self) -> Channel { match self { diff --git a/resources/local/config.toml b/resources/local/config.toml index dadfada1db..74d4d6f05f 100644 --- a/resources/local/config.toml +++ b/resources/local/config.toml @@ -247,36 +247,6 @@ blocklist_retain_duration = '1min' # secret_key = "local_node.pem" # ca_certificate = "ca_cert.pem" -# Weights for impact estimation of incoming messages, used in combination with -# `max_incoming_message_rate_non_validators`. -# -# Any weight set to 0 means that the category of traffic is exempt from throttling. -[network.estimator_weights] -consensus = 0 -block_gossip = 1 -deploy_gossip = 0 -finality_signature_gossip = 1 -address_gossip = 0 -finality_signature_broadcasts = 0 -deploy_requests = 1 -deploy_responses = 0 -legacy_deploy_requests = 1 -legacy_deploy_responses = 0 -block_requests = 1 -block_responses = 0 -block_header_requests = 1 -block_header_responses = 0 -trie_requests = 1 -trie_responses = 0 -finality_signature_requests = 1 -finality_signature_responses = 0 -sync_leap_requests = 1 -sync_leap_responses = 0 -approvals_hashes_requests = 1 -approvals_hashes_responses = 0 -execution_results_requests = 1 -execution_results_responses = 0 - # ================================================== # Configuration options for the JSON-RPC HTTP server diff --git a/resources/production/config-example.toml b/resources/production/config-example.toml index 1e321955fc..8e63c0e8b0 100644 --- a/resources/production/config-example.toml +++ b/resources/production/config-example.toml @@ -247,33 +247,6 @@ blocklist_retain_duration = '10min' # secret_key = "node.pem" # ca_certificate = "ca_cert.pem" -# Weights for impact estimation of incoming messages, used in combination with -# `max_incoming_message_rate_non_validators`. -# -# Any weight set to 0 means that the category of traffic is exempt from throttling. -[network.estimator_weights] -consensus = 0 -gossip = 0 -finality_signature_broadcasts = 0 -deploy_requests = 1 -deploy_responses = 0 -legacy_deploy_requests = 1 -legacy_deploy_responses = 0 -block_requests = 1 -block_responses = 0 -block_header_requests = 1 -block_header_responses = 0 -trie_requests = 1 -trie_responses = 0 -finality_signature_requests = 1 -finality_signature_responses = 0 -sync_leap_requests = 1 -sync_leap_responses = 0 -approvals_hashes_requests = 1 -approvals_hashes_responses = 0 -execution_results_requests = 1 -execution_results_responses = 0 - # ================================================== # Configuration options for the JSON-RPC HTTP server From c75f20cdabb82ba4adbac8d65244be14a8946fd8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 11 Aug 2023 17:06:10 +0200 Subject: [PATCH 612/735] Rename `QueueKind::NetworkLowPriority` and `QueueKind::NetworkIncoming` to `MessageLowPriority` and `MessageIncoming` due to request from Ed --- node/CHANGELOG.md | 1 + node/src/components/in_memory_network.rs | 2 +- node/src/components/network/tasks.rs | 6 +++--- node/src/effect.rs | 2 +- node/src/reactor/queue_kind.rs | 22 +++++++++++----------- 5 files changed, 17 insertions(+), 16 deletions(-) diff --git a/node/CHANGELOG.md b/node/CHANGELOG.md index 3577e3ebf6..5d06e2662c 100644 --- a/node/CHANGELOG.md +++ b/node/CHANGELOG.md @@ -19,6 +19,7 @@ All notable changes to this project will be documented in this file. The format ### Changed * The `state_identifier` parameter of the `query_global_state` JSON-RPC method is now optional. If no `state_identifier` is specified, the highest complete block known to the node will be used to fulfill the request. * The underlying network protocol has been changed, now supports multiplexing for better latency and proper backpressuring across nodes. +* Any metrics containing queue names "network_low_priority" and "network_incoming" have had said portion renamed to "message_low_priority" and "message_incoming". ### Removed * There is no more weighted rate limiting on incoming traffic, instead the nodes dynamically adjusts allowed rates from peers based on available resources. This resulted in the removal of the `estimator_weights` configuration option and the `accumulated_incoming_limiter_delay` metric. diff --git a/node/src/components/in_memory_network.rs b/node/src/components/in_memory_network.rs index a356d5be79..db6bd3be96 100644 --- a/node/src/components/in_memory_network.rs +++ b/node/src/components/in_memory_network.rs @@ -612,7 +612,7 @@ async fn receiver_task( let announce: REv = REv::from_incoming(sender, payload, Ticket::create_dummy()); event_queue - .schedule(announce, QueueKind::NetworkIncoming) + .schedule(announce, QueueKind::MessageIncoming) .await; } diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index a80ca885cd..0bbfb6bbb6 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -424,7 +424,7 @@ pub(super) async fn server( incoming: Box::new(incoming), span, }, - QueueKind::NetworkIncoming, + QueueKind::MessageIncoming, ) .await; } @@ -530,9 +530,9 @@ where } let queue_kind = if msg.is_low_priority() { - QueueKind::NetworkLowPriority + QueueKind::MessageLowPriority } else { - QueueKind::NetworkIncoming + QueueKind::MessageIncoming }; context diff --git a/node/src/effect.rs b/node/src/effect.rs index 9709132daf..790297b21a 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -830,7 +830,7 @@ impl EffectBuilder { }; self.event_queue - .schedule(reactor_event, QueueKind::NetworkIncoming) + .schedule(reactor_event, QueueKind::MessageIncoming) .await } diff --git a/node/src/reactor/queue_kind.rs b/node/src/reactor/queue_kind.rs index 52e5bdef14..7a7e720089 100644 --- a/node/src/reactor/queue_kind.rs +++ b/node/src/reactor/queue_kind.rs @@ -16,12 +16,12 @@ use serde::Serialize; pub enum QueueKind { /// Control messages for the runtime itself. Control, - /// Network events that were initiated outside of this node. + /// Incoming message events that were initiated outside of this node. /// - /// Their load may vary and grouping them together in one queue aides DoS protection. - NetworkIncoming, - /// Network events that are low priority. - NetworkLowPriority, + /// Their load may vary and grouping them together in one queue aids DoS protection. + MessageIncoming, + /// Incoming messages that are low priority. + MessageLowPriority, /// Network events demand a resource directly. NetworkDemand, /// Network events that were initiated by the local node, such as outgoing messages. @@ -61,8 +61,8 @@ impl Display for QueueKind { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { let str_value = match self { QueueKind::Control => "Control", - QueueKind::NetworkIncoming => "NetworkIncoming", - QueueKind::NetworkLowPriority => "NetworkLowPriority", + QueueKind::MessageIncoming => "MessageIncoming", + QueueKind::MessageLowPriority => "MessageLowPriority", QueueKind::NetworkDemand => "NetworkDemand", QueueKind::Network => "Network", QueueKind::NetworkInfo => "NetworkInfo", @@ -95,10 +95,10 @@ impl QueueKind { /// each event processing round. fn weight(self) -> NonZeroUsize { NonZeroUsize::new(match self { - QueueKind::NetworkLowPriority => 1, + QueueKind::MessageLowPriority => 1, QueueKind::NetworkInfo => 2, QueueKind::NetworkDemand => 2, - QueueKind::NetworkIncoming => 8, + QueueKind::MessageIncoming => 4, QueueKind::Network => 4, QueueKind::Regular => 4, QueueKind::Fetch => 4, @@ -127,9 +127,9 @@ impl QueueKind { pub(crate) fn metrics_name(&self) -> &str { match self { QueueKind::Control => "control", - QueueKind::NetworkIncoming => "network_incoming", + QueueKind::MessageIncoming => "message_incoming", QueueKind::NetworkDemand => "network_demands", - QueueKind::NetworkLowPriority => "network_low_priority", + QueueKind::MessageLowPriority => "message_low_priority", QueueKind::Network => "network", QueueKind::NetworkInfo => "network_info", QueueKind::SyncGlobalState => "sync_global_state", From 596074090d49573ee6c2358d8c53245546415cf0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 11 Aug 2023 17:22:06 +0200 Subject: [PATCH 613/735] As a replacement for incoming rate limiting favoring validators, add a special queue kind for them --- Cargo.lock | 3 +- Cargo.toml | 3 + node/src/components/network.rs | 121 +++++++++++++++++++++-- node/src/components/network/event.rs | 5 +- node/src/components/network/handshake.rs | 5 +- node/src/components/network/tasks.rs | 19 +++- node/src/reactor/main_reactor.rs | 4 + node/src/reactor/queue_kind.rs | 5 + node/src/types/validator_matrix.rs | 19 ++++ 9 files changed, 163 insertions(+), 21 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 368a8a8b3a..de6715701f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1285,8 +1285,7 @@ dependencies = [ [[package]] name = "datasize" version = "0.2.14" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c88ad90721dc8e2ebe1430ac2f59c5bdcd74478baa68da26f30f33b0fe997f11" +source = "git+https://github.com/casperlabs/datasize-rs?rev=2b980c05af5553522dde5f2751e5a0fd3347d881#2b980c05af5553522dde5f2751e5a0fd3347d881" dependencies = [ "datasize_derive", "fake_instant", diff --git a/Cargo.toml b/Cargo.toml index 4a3b2ee08a..fc4c9627bd 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -44,3 +44,6 @@ lto = true [profile.release-with-debug] inherits = "release" debug = true + +[patch.crates-io] +datasize = { git = "https://github.com/casperlabs/datasize-rs", rev = "2b980c05af5553522dde5f2751e5a0fd3347d881" } \ No newline at end of file diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 150317c876..0fc7ef031b 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -45,13 +45,16 @@ mod tests; mod transport; use std::{ - collections::{BTreeMap, HashMap, HashSet}, + collections::{hash_map::Entry, BTreeMap, HashMap, HashSet}, convert::TryInto, fmt::{self, Debug, Display, Formatter}, fs::OpenOptions, marker::PhantomData, net::{SocketAddr, TcpListener}, - sync::Arc, + sync::{ + atomic::{AtomicBool, Ordering}, + Arc, Weak, + }, time::{Duration, Instant}, }; @@ -123,6 +126,8 @@ use crate::{ NodeRng, }; +use super::ValidatorBoundComponent; + const COMPONENT_NAME: &str = "network"; const MAX_METRICS_DROP_ATTEMPTS: usize = 25; @@ -177,9 +182,16 @@ where cfg: Config, /// Read-only networking information shared across tasks. context: Arc>, + /// A reference to the global validator matrix. + validator_matrix: ValidatorMatrix, /// Outgoing connections manager. outgoing_manager: OutgoingManager, + /// Incoming validator map. + /// + /// Tracks which incoming connections are from validators. The atomic bool is shared with the + /// receiver tasks to determine queue position. + incoming_validator_status: HashMap>, /// Tracks whether a connection is symmetric or not. connection_symmetries: HashMap, @@ -292,7 +304,9 @@ where let component = Network { cfg, context, + validator_matrix, outgoing_manager, + incoming_validator_status: Default::default(), connection_symmetries: HashMap::new(), net_metrics, outgoing_limiter, @@ -477,7 +491,7 @@ where &self, dest: NodeId, msg: Arc>, - opt_responder: Option>, + _opt_responder: Option>, // TODO: Restore functionality or remove? ) { // Try to send the message. if let Some(connection) = self.outgoing_manager.get_route(dest) { @@ -635,6 +649,38 @@ where // connection after a peer has closed the corresponding incoming connection. } + // If given a key, determine validator status. + let validator_status = peer_consensus_public_key.as_ref().map(|public_key| { + let status = self + .validator_matrix + .is_active_or_upcoming_validator(public_key); + + // Find the shared `Arc` that holds the validator status for this specific key. + match self.incoming_validator_status.entry((**public_key).clone()) { + // TODO: Use `Arc` for public key-key. + Entry::Occupied(mut occupied) => { + match occupied.get().upgrade() { + Some(arc) => { + arc.store(status, Ordering::Relaxed); + arc + } + None => { + // Failed to ugprade, the weak pointer is just a leftover that + // has not been cleaned up yet. We can replace it. + let arc = Arc::new(AtomicBool::new(status)); + occupied.insert(Arc::downgrade(&arc)); + arc + } + } + } + Entry::Vacant(vacant) => { + let arc = Arc::new(AtomicBool::new(status)); + vacant.insert(Arc::downgrade(&arc)); + arc + } + } + }); + let (read_half, write_half) = tokio::io::split(transport); let (rpc_client, rpc_server) = self.rpc_builder.build(read_half, write_half); @@ -642,8 +688,9 @@ where // Now we can start the message reader. let boxed_span = Box::new(span.clone()); effects.extend( - tasks::multi_channel_message_receiver( + tasks::message_receiver( self.context.clone(), + validator_status, rpc_server, self.shutdown_fuse.inner().clone(), peer_id, @@ -659,6 +706,7 @@ where result, peer_id: Box::new(peer_id), peer_addr, + peer_consensus_public_key, span: boxed_span, } }), @@ -674,6 +722,7 @@ where result: Result<(), MessageReceiverError>, peer_id: Box, peer_addr: SocketAddr, + peer_consensus_public_key: Option>, span: Span, ) -> Effects> { span.in_scope(|| { @@ -687,11 +736,19 @@ where } } - // Update the connection symmetries. - self.connection_symmetries + // Update the connection symmetries and cleanup if necessary. + if !self + .connection_symmetries .entry(*peer_id) - .or_default() - .remove_incoming(peer_addr, Instant::now()); + .or_default() // Should never occur. + .remove_incoming(peer_addr, Instant::now()) + { + if let Some(ref public_key) = peer_consensus_public_key { + self.incoming_validator_status.remove(public_key); + } + + self.connection_symmetries.remove(&peer_id); + } Effects::new() }) @@ -797,7 +854,7 @@ where OutgoingConnection::Established { peer_addr, peer_id, - peer_consensus_public_key, + peer_consensus_public_key: _, // TODO: Use for limiting or remove. transport, } => { info!("new outgoing connection established"); @@ -1220,8 +1277,15 @@ where result, peer_id, peer_addr, + peer_consensus_public_key, span, - } => self.handle_incoming_closed(result, peer_id, peer_addr, *span), + } => self.handle_incoming_closed( + result, + peer_id, + peer_addr, + peer_consensus_public_key, + *span, + ), Event::OutgoingConnection { outgoing, span } => { self.handle_outgoing_connection(*outgoing, span) } @@ -1340,6 +1404,43 @@ where } } +impl ValidatorBoundComponent for Network +where + REv: ReactorEvent + + From> + + From> + + FromIncoming

+ + From + + From> + + From, + P: Payload, +{ + fn handle_validators( + &mut self, + _effect_builder: EffectBuilder, + _rng: &mut NodeRng, + ) -> Effects { + // If we receive an updated set of validators, recalculate validator status for every + // existing connection. + + let active_validators = self.validator_matrix.active_or_upcoming_validators(); + + // Update the validator status for every connection. + for (public_key, status) in self.incoming_validator_status.iter_mut() { + // If there is only a `Weak` ref, we lost the connection to the validator, but the + // disconnection has not reached us yet. + status.upgrade().map(|arc| { + arc.store( + active_validators.contains(public_key), + std::sync::atomic::Ordering::Relaxed, + ) + }); + } + + Effects::default() + } +} + /// Setup a fixed amount of senders/receivers. fn unbounded_channels() -> ([UnboundedSender; N], [UnboundedReceiver; N]) { // TODO: Improve this somehow to avoid the extra allocation required (turning a diff --git a/node/src/components/network/event.rs b/node/src/components/network/event.rs index 6166d47d9f..e1d59a7ee1 100644 --- a/node/src/components/network/event.rs +++ b/node/src/components/network/event.rs @@ -59,6 +59,7 @@ where result: Result<(), MessageReceiverError>, peer_id: Box, peer_addr: SocketAddr, + peer_consensus_public_key: Option>, #[serde(skip_serializing)] span: Box, }, @@ -189,7 +190,7 @@ pub(crate) enum IncomingConnection { /// Peer's [`NodeId`]. peer_id: NodeId, /// The public key the peer is validating with, if any. - peer_consensus_public_key: Option, + peer_consensus_public_key: Option>, /// Stream of incoming messages. for incoming connections. #[serde(skip_serializing)] transport: Transport, @@ -259,7 +260,7 @@ pub(crate) enum OutgoingConnection { /// Peer's [`NodeId`]. peer_id: NodeId, /// The public key the peer is validating with, if any. - peer_consensus_public_key: Option, + peer_consensus_public_key: Option>, /// Sink for outgoing messages. #[serde(skip)] transport: Transport, diff --git a/node/src/components/network/handshake.rs b/node/src/components/network/handshake.rs index 0f9ef8bfe1..6219a32c4f 100644 --- a/node/src/components/network/handshake.rs +++ b/node/src/components/network/handshake.rs @@ -29,7 +29,7 @@ pub(super) struct HandshakeOutcome { /// Public address advertised by the peer. pub(super) public_addr: SocketAddr, /// The public key the peer is validating with, if any. - pub(super) peer_consensus_public_key: Option, + pub(super) peer_consensus_public_key: Option>, } /// Reads a 32 byte big endian integer prefix, followed by an actual raw message. @@ -222,7 +222,8 @@ where cert.validate(connection_id) .map_err(ConnectionError::InvalidConsensusCertificate) }) - .transpose()?; + .transpose()? + .map(Box::new); let transport = read_half.unsplit(write_half); diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index 0bbfb6bbb6..b88db86af8 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -4,7 +4,10 @@ use std::{ fmt::Display, net::SocketAddr, pin::Pin, - sync::{Arc, Weak}, + sync::{ + atomic::{AtomicBool, Ordering}, + Arc, Weak, + }, }; use futures::{ @@ -461,9 +464,10 @@ pub(super) async fn server( } } -/// Multi-channel message receiver. -pub(super) async fn multi_channel_message_receiver( +/// Juliet-based message receiver. +pub(super) async fn message_receiver( context: Arc>, + validator_status: Option>, mut rpc_server: RpcServer, shutdown: ObservableFuse, peer_id: NodeId, @@ -477,7 +481,6 @@ where + From + Send, { - // Core receival loop. loop { let next_item = rpc_server.next_request(); @@ -529,7 +532,13 @@ where }); } - let queue_kind = if msg.is_low_priority() { + let queue_kind = if validator_status + .as_ref() + .map(|arc| arc.load(Ordering::Relaxed)) + .unwrap_or_default() + { + QueueKind::MessageValidator + } else if msg.is_low_priority() { QueueKind::MessageLowPriority } else { QueueKind::MessageIncoming diff --git a/node/src/reactor/main_reactor.rs b/node/src/reactor/main_reactor.rs index 06e4fac215..2101d6c00a 100644 --- a/node/src/reactor/main_reactor.rs +++ b/node/src/reactor/main_reactor.rs @@ -1247,6 +1247,10 @@ impl MainReactor { self.block_synchronizer .handle_validators(effect_builder, rng), )); + effects.extend(reactor::wrap_effects( + MainEvent::Network, + self.net.handle_validators(effect_builder, rng), + )); effects } diff --git a/node/src/reactor/queue_kind.rs b/node/src/reactor/queue_kind.rs index 7a7e720089..7a9b80a991 100644 --- a/node/src/reactor/queue_kind.rs +++ b/node/src/reactor/queue_kind.rs @@ -22,6 +22,8 @@ pub enum QueueKind { MessageIncoming, /// Incoming messages that are low priority. MessageLowPriority, + /// Incoming messages from validators. + MessageValidator, /// Network events demand a resource directly. NetworkDemand, /// Network events that were initiated by the local node, such as outgoing messages. @@ -64,6 +66,7 @@ impl Display for QueueKind { QueueKind::MessageIncoming => "MessageIncoming", QueueKind::MessageLowPriority => "MessageLowPriority", QueueKind::NetworkDemand => "NetworkDemand", + QueueKind::MessageValidator => "MessageValidator", QueueKind::Network => "Network", QueueKind::NetworkInfo => "NetworkInfo", QueueKind::Fetch => "Fetch", @@ -99,6 +102,7 @@ impl QueueKind { QueueKind::NetworkInfo => 2, QueueKind::NetworkDemand => 2, QueueKind::MessageIncoming => 4, + QueueKind::MessageValidator => 8, QueueKind::Network => 4, QueueKind::Regular => 4, QueueKind::Fetch => 4, @@ -130,6 +134,7 @@ impl QueueKind { QueueKind::MessageIncoming => "message_incoming", QueueKind::NetworkDemand => "network_demands", QueueKind::MessageLowPriority => "message_low_priority", + QueueKind::MessageValidator => "message_validator", QueueKind::Network => "network", QueueKind::NetworkInfo => "network_info", QueueKind::SyncGlobalState => "sync_global_state", diff --git a/node/src/types/validator_matrix.rs b/node/src/types/validator_matrix.rs index 58c139a4ed..a4632823de 100644 --- a/node/src/types/validator_matrix.rs +++ b/node/src/types/validator_matrix.rs @@ -251,6 +251,9 @@ impl ValidatorMatrix { } /// Determine if the active validator is in a current or upcoming set of active validators. + /// + /// The set is not guaranteed to be minimal, as it will include validators up to `auction_delay + /// + 1` back eras from the highest era known. #[inline] pub(crate) fn is_active_or_upcoming_validator(&self, public_key: &PublicKey) -> bool { // This function is potentially expensive and could be memoized, with the cache being @@ -262,6 +265,22 @@ impl ValidatorMatrix { .any(|validator_weights| validator_weights.is_validator(public_key)) } + /// Return the set of active or upcoming validators. + /// + /// The set is not guaranteed to be minimal, as it will include validators up to `auction_delay + /// + 1` back eras from the highest era known. + #[inline] + pub(crate) fn active_or_upcoming_validators(&self) -> HashSet { + self.read_inner() + .values() + .rev() + .take(self.auction_delay as usize + 1) + .map(|validator_weights| validator_weights.validator_public_keys()) + .flatten() + .cloned() + .collect() + } + pub(crate) fn create_finality_signature( &self, block_header: &BlockHeader, From 060a9da792a89203121fe94dedf1d84bce2d989e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 11 Aug 2023 17:27:01 +0200 Subject: [PATCH 614/735] Remove `NetworkDemand` and derive `Display` for `QueueKind` --- node/src/reactor/queue_kind.rs | 46 +++++++++++----------------------- 1 file changed, 14 insertions(+), 32 deletions(-) diff --git a/node/src/reactor/queue_kind.rs b/node/src/reactor/queue_kind.rs index 7a9b80a991..c563d33f93 100644 --- a/node/src/reactor/queue_kind.rs +++ b/node/src/reactor/queue_kind.rs @@ -4,7 +4,7 @@ //! round-robin manner. This way, events are only competing for time within one queue, non-congested //! queues can always assume to be speedily processed. -use std::{fmt::Display, num::NonZeroUsize}; +use std::num::NonZeroUsize; use enum_iterator::IntoEnumIterator; use serde::Serialize; @@ -12,7 +12,19 @@ use serde::Serialize; /// Scheduling priority. /// /// Priorities are ordered from lowest to highest. -#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, IntoEnumIterator, PartialOrd, Ord, Serialize)] +#[derive( + Copy, + Clone, + Debug, + strum::Display, + Eq, + PartialEq, + Hash, + IntoEnumIterator, + PartialOrd, + Ord, + Serialize, +)] pub enum QueueKind { /// Control messages for the runtime itself. Control, @@ -24,8 +36,6 @@ pub enum QueueKind { MessageLowPriority, /// Incoming messages from validators. MessageValidator, - /// Network events demand a resource directly. - NetworkDemand, /// Network events that were initiated by the local node, such as outgoing messages. Network, /// NetworkInfo events. @@ -59,32 +69,6 @@ pub enum QueueKind { Api, } -impl Display for QueueKind { - fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - let str_value = match self { - QueueKind::Control => "Control", - QueueKind::MessageIncoming => "MessageIncoming", - QueueKind::MessageLowPriority => "MessageLowPriority", - QueueKind::NetworkDemand => "NetworkDemand", - QueueKind::MessageValidator => "MessageValidator", - QueueKind::Network => "Network", - QueueKind::NetworkInfo => "NetworkInfo", - QueueKind::Fetch => "Fetch", - QueueKind::Regular => "Regular", - QueueKind::Gossip => "Gossip", - QueueKind::FromStorage => "FromStorage", - QueueKind::ToStorage => "ToStorage", - QueueKind::ContractRuntime => "ContractRuntime", - QueueKind::SyncGlobalState => "SyncGlobalState", - QueueKind::FinalitySignature => "FinalitySignature", - QueueKind::Consensus => "Consensus", - QueueKind::Validation => "Validation", - QueueKind::Api => "Api", - }; - write!(f, "{}", str_value) - } -} - impl Default for QueueKind { fn default() -> Self { QueueKind::Regular @@ -100,7 +84,6 @@ impl QueueKind { NonZeroUsize::new(match self { QueueKind::MessageLowPriority => 1, QueueKind::NetworkInfo => 2, - QueueKind::NetworkDemand => 2, QueueKind::MessageIncoming => 4, QueueKind::MessageValidator => 8, QueueKind::Network => 4, @@ -132,7 +115,6 @@ impl QueueKind { match self { QueueKind::Control => "control", QueueKind::MessageIncoming => "message_incoming", - QueueKind::NetworkDemand => "network_demands", QueueKind::MessageLowPriority => "message_low_priority", QueueKind::MessageValidator => "message_validator", QueueKind::Network => "network", From 441056dc66796b39f538277e5e8cf0b7a1922826 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 11 Aug 2023 18:27:28 +0200 Subject: [PATCH 615/735] Remove large event warning, as it has been superseded by compile time checks --- node/src/reactor.rs | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 908cce0d33..3fdb114943 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -479,18 +479,6 @@ where ) -> Result { adjust_open_files_limit(); - let event_size = mem::size_of::(); - - // Check if the event is of a reasonable size. This only emits a runtime warning at startup - // right now, since storage size of events is not an issue per se, but copying might be - // expensive if events get too large. - if event_size > 16 * mem::size_of::() { - warn!( - %event_size, type_name = ?any::type_name::(), - "large event size, consider reducing it or boxing" - ); - } - let scheduler = utils::leak(Scheduler::new(QueueKind::weights())); let is_shutting_down = SharedFuse::new(); From 078da4faf45192b89b5d739cce0b1c59d34ca948 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 13 Aug 2023 15:47:16 +0200 Subject: [PATCH 616/735] Cleanup minor module import issues --- node/src/reactor.rs | 2 -- 1 file changed, 2 deletions(-) diff --git a/node/src/reactor.rs b/node/src/reactor.rs index 3fdb114943..7af1a8c1d4 100644 --- a/node/src/reactor.rs +++ b/node/src/reactor.rs @@ -34,12 +34,10 @@ pub(crate) mod main_reactor; mod queue_kind; use std::{ - any, collections::HashMap, env, fmt::{Debug, Display}, io::Write, - mem, num::NonZeroU64, str::FromStr, sync::{atomic::Ordering, Arc}, From f56fc6f9999d057662dbcc2a6ec4f4ffb6bdfed5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 13 Aug 2023 15:47:28 +0200 Subject: [PATCH 617/735] juliet: Add `rpc` module smoke test --- juliet/Cargo.toml | 7 +++- juliet/src/rpc.rs | 93 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 99 insertions(+), 1 deletion(-) diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 34ad168408..18b8ab92dd 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -17,7 +17,12 @@ tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } tracing = { version = "0.1.37", optional = true } [dev-dependencies] -tokio = { version = "1.29.1", features = [ "net", "rt-multi-thread", "time" ] } +tokio = { version = "1.29.1", features = [ + "macros", + "net", + "rt-multi-thread", + "time", +] } proptest = "1.1.0" proptest-attr-macro = "1.0.0" proptest-derive = "0.3.0" diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index ea872b4671..70970492ba 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -623,3 +623,96 @@ impl Drop for IncomingRequest { self.do_cancel(); } } + +#[cfg(test)] +mod tests { + use bytes::Bytes; + use tokio::io::{DuplexStream, ReadHalf, WriteHalf}; + + use crate::{ + io::IoCoreBuilder, protocol::ProtocolBuilder, rpc::RpcBuilder, ChannelConfiguration, + ChannelId, + }; + + use super::{JulietRpcClient, JulietRpcServer}; + + fn setup_peers( + builder: RpcBuilder, + ) -> ( + ( + JulietRpcClient, + JulietRpcServer, WriteHalf>, + ), + ( + JulietRpcClient, + JulietRpcServer, WriteHalf>, + ), + ) { + let (peer_a_pipe, peer_b_pipe) = tokio::io::duplex(64); + let peer_a = { + let (reader, writer) = tokio::io::split(peer_a_pipe); + builder.build(reader, writer) + }; + let peer_b = { + let (reader, writer) = tokio::io::split(peer_b_pipe); + builder.build(reader, writer) + }; + (peer_a, peer_b) + } + + #[tokio::test] + async fn basic_smoke_test() { + let builder = RpcBuilder::new(IoCoreBuilder::new( + ProtocolBuilder::<2>::with_default_channel_config( + ChannelConfiguration::new() + .with_max_request_payload_size(1024) + .with_max_response_payload_size(1024), + ), + )); + + let (client, server) = setup_peers(builder); + + // Spawn an echo-server. + tokio::spawn(async move { + let (rpc_client, mut rpc_server) = server; + + while let Some(req) = rpc_server + .next_request() + .await + .expect("error receiving request") + { + println!("recieved {}", req); + let payload = req.payload().clone(); + req.respond(payload); + } + + drop(rpc_client); + }); + + let (rpc_client, mut rpc_server) = client; + + // Run the background process for the client. + tokio::spawn(async move { + while let Some(inc) = rpc_server + .next_request() + .await + .expect("client rpc_server error") + { + panic!("did not expect to receive {:?} on client", inc); + } + }); + + let payload = Bytes::from(&b"foobar"[..]); + + let response = rpc_client + .create_request(ChannelId::new(0)) + .with_payload(payload.clone()) + .queue_for_sending() + .await + .wait_for_response() + .await + .expect("request failed"); + + assert_eq!(response, Some(payload)); + } +} From 51909faa13a684e93cd86b5402d08e0a6f3679fc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 13 Aug 2023 17:25:10 +0200 Subject: [PATCH 618/735] juliet: Fix typos and remove dead code from `log_frame!` macro --- juliet/src/protocol.rs | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 56dfe909e1..9cd0d1aaa4 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -218,7 +218,7 @@ struct Channel { /// A set of request IDs from requests received that have not been answered with a response or /// cancellation yet. incoming_requests: HashSet, - /// A set of request IDs for requests made for which no response or cancellation has been + /// A set of request IDs of requests made, for which no response or cancellation has been /// received yet. outgoing_requests: HashSet, /// The multiframe receiver state machine. @@ -397,10 +397,6 @@ macro_rules! log_frame { use tracing::trace; trace!(header=%$header, "received"); } - #[cfg(not(feature = "tracing"))] - { - // tracing feature disabled, not logging frame - } }; ($header:expr, $payload:expr) => { #[cfg(feature = "tracing")] @@ -408,10 +404,6 @@ macro_rules! log_frame { use tracing::trace; trace!(header=%$header, payload=%crate::util::PayloadFormat(&$payload), "received"); } - #[cfg(not(feature = "tracing"))] - { - // tracing feature disabled, not logging frame - } }; } From 0992d9af2ec1cb1b71dd99b86b44b3e6ee6e1d6f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Sun, 13 Aug 2023 17:25:45 +0200 Subject: [PATCH 619/735] juliet: Fix bug which caused responses without payloads to never be cleared from buffer --- juliet/src/protocol.rs | 62 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 61 insertions(+), 1 deletion(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 9cd0d1aaa4..708af877cd 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -312,7 +312,7 @@ impl Channel { /// A successful read from the peer. #[must_use] -#[derive(Debug)] +#[derive(Debug, Eq, PartialEq)] pub enum CompletedRead { /// An error has been received. /// @@ -755,6 +755,8 @@ impl JulietProtocol { return err_msg(header, ErrorKind::FictitiousRequest); } else { log_frame!(header); + + buffer.advance(Header::SIZE); return Success(CompletedRead::ReceivedResponse { channel: header.channel(), id: header.id(), @@ -907,3 +909,61 @@ pub const fn payload_is_multi_frame(max_frame_size: MaxFrameSize, payload_len: u payload_len as u64 + Header::SIZE as u64 + (Varint32::encode(payload_len as u32)).len() as u64 > max_frame_size.get() as u64 } + +#[cfg(test)] +mod tests { + use bytes::{Buf, Bytes, BytesMut}; + + use crate::{ + header::{Header, Kind}, + protocol::CompletedRead, + ChannelConfiguration, ChannelId, Id, + }; + + use super::{JulietProtocol, ProtocolBuilder}; + + #[test] + fn response_with_no_payload_is_cleared_from_buffer() { + let mut protocol: JulietProtocol<16> = ProtocolBuilder::with_default_channel_config( + ChannelConfiguration::new() + .with_max_request_payload_size(4096) + .with_max_response_payload_size(4096), + ) + .build(); + + let channel = ChannelId::new(6); + let id = Id::new(1); + + // Create the request to prime the protocol state machine for the incoming response. + let msg = protocol + .create_request(channel, Some(Bytes::from(&b"foobar"[..]))) + .expect("can create request"); + + assert_eq!(msg.header().channel(), channel); + assert_eq!(msg.header().id(), id); + + let mut response_raw = + BytesMut::from(&Header::new(Kind::Response, channel, id).as_ref()[..]); + + assert_eq!(response_raw.remaining(), 4); + + let outcome = protocol + .process_incoming(&mut response_raw) + .expect("should complete outcome"); + assert_eq!( + outcome, + CompletedRead::ReceivedResponse { + channel: channel, + /// The ID of the request received. + id: id, + /// The response payload. + payload: None, + } + ); + + assert_eq!(response_raw.remaining(), 0); + } + + // TODO: Additional tests checking buffer is advanced properly when receiving in + // `process_incoming`. +} From e8dbfd29fe464f1795b9bb30ddcfc56b61d85935 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 14 Aug 2023 15:10:13 +0200 Subject: [PATCH 620/735] Add workaround for unpopulated validator matrix in broadcast --- node/src/components/network.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 0fc7ef031b..4ad247dcef 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -422,7 +422,10 @@ where for peer_id in self.outgoing_manager.connected_peers() { total_outgoing_manager_connected_peers += 1; - if self.outgoing_limiter.is_validator_in_era(era_id, &peer_id) { + + // TODO FIXME: This makes the broadcast global again to work around issues with the + // validator matrix not being populated in time. + if true || self.outgoing_limiter.is_validator_in_era(era_id, &peer_id) { total_connected_validators_in_era += 1; self.send_message(peer_id, msg.clone(), None) } From 12fcdd69f32c82e4734d85b0c6632ff3b5363e77 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 14 Aug 2023 15:18:58 +0200 Subject: [PATCH 621/735] Remove misleading `ValidatorMatrix::is_empty` and make `ValidatorBroadcast` work again --- node/src/components/network.rs | 6 +++--- node/src/components/network/limiter.rs | 16 +++++++++------- node/src/types/validator_matrix.rs | 4 ---- 3 files changed, 12 insertions(+), 14 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 4ad247dcef..3c514617ff 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -423,9 +423,9 @@ where for peer_id in self.outgoing_manager.connected_peers() { total_outgoing_manager_connected_peers += 1; - // TODO FIXME: This makes the broadcast global again to work around issues with the - // validator matrix not being populated in time. - if true || self.outgoing_limiter.is_validator_in_era(era_id, &peer_id) { + if !self.validator_matrix.has_era(&era_id) + || self.outgoing_limiter.is_validator_in_era(era_id, &peer_id) + { total_connected_validators_in_era += 1; self.send_message(peer_id, msg.clone(), None) } diff --git a/node/src/components/network/limiter.rs b/node/src/components/network/limiter.rs index c8e16c95c0..2774a2e27e 100644 --- a/node/src/components/network/limiter.rs +++ b/node/src/components/network/limiter.rs @@ -201,13 +201,15 @@ impl LimiterHandle { pub(super) async fn request_allowance(&self, amount: u32) { // As a first step, determine the peer class by checking if our id is in the validator set. - if self.validator_matrix.is_empty() { - // It is likely that we have not been initialized, thus no node is getting the - // reserved resources. In this case, do not limit at all. - trace!("empty set of validators, not limiting resources at all"); - - return; - } + // TODO FIXME: Re-add support for limiting? + return; + // if self.validator_matrix.is_empty() { + // // It is likely that we have not been initialized, thus no node is getting the + // // reserved resources. In this case, do not limit at all. + // trace!("empty set of validators, not limiting resources at all"); + + // return; + // } let peer_class = if let Some(ref public_key) = self.consumer_id.consensus_key { if self diff --git a/node/src/types/validator_matrix.rs b/node/src/types/validator_matrix.rs index 2504391561..19b98d4754 100644 --- a/node/src/types/validator_matrix.rs +++ b/node/src/types/validator_matrix.rs @@ -217,10 +217,6 @@ impl ValidatorMatrix { self.finality_threshold_fraction } - pub(crate) fn is_empty(&self) -> bool { - self.read_inner().is_empty() - } - /// Returns whether `pub_key` is the ID of a validator in this era, or `None` if the validator /// information for that era is missing. pub(crate) fn is_validator_in_era( From 55e08514221a2bb6dc3541110a6ef0e73acf48fc Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 22 Aug 2023 11:17:10 +0200 Subject: [PATCH 622/735] Do not log successful case in `Drop::drop` of `AutoClosingResponder` --- node/src/effect.rs | 4 ---- 1 file changed, 4 deletions(-) diff --git a/node/src/effect.rs b/node/src/effect.rs index 790297b21a..5fe4df5caa 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -256,10 +256,6 @@ impl AutoClosingResponder { impl Drop for AutoClosingResponder { fn drop(&mut self) { if let Some(sender) = self.0.sender.take() { - debug!( - sending_value = %self.0, - "responding None by dropping auto-close responder" - ); // We still haven't answered, send an answer. if let Err(_unsent_value) = sender.send(None) { debug!( From e4a8aff7cd4cdf2437bd276f507026b71859d452 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 22 Aug 2023 13:54:02 +0200 Subject: [PATCH 623/735] juliet: Outline majority of tests required for `protocol` module --- juliet/src/protocol.rs | 108 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 105 insertions(+), 3 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 708af877cd..9eb9f32c19 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -922,8 +922,113 @@ mod tests { use super::{JulietProtocol, ProtocolBuilder}; + #[test] + fn max_frame_size_implemented_correctly() { + todo!("ensure methods on max frame size work as they should"); + } + + #[test] + fn request_id_generation_generates_unique_ids() { + todo!("ensure request ids generate unique IDs"); + } + + #[test] + fn allowed_to_send_throttles_when_appropriate() { + todo!("`allowed_to_send_request` should block/clear sending"); + } + + #[test] + fn is_at_max_incoming_requests_works() { + todo!("ensure `is_at_max_incoming_requests` is implemented correctly"); + } + + #[test] + fn cancellation_allowance_incrementation_works() { + todo!("ensure lower level cancellation allowance functions work"); + } + + #[test] + fn test_channel_lookups_work() { + todo!("ensure channel lookups work, may have to add additional examples if panicking"); + } + + #[test] + fn err_msg_works() { + todo!("the `err_msg` helper function should work"); + } + + #[test] + fn multi_frame_detection_works() { + todo!("ensure `payload_is_multi_frame` works") + } + + #[test] + fn ensure_allowed_to_send_request_gates_correctly() { + todo!( + "`allowed_to_send_request` should allow the agreed upon number of in-flight requests" + ); + } + + #[test] + fn create_requests_with_correct_input_sets_state_accordingly() { + todo!("ensure that calling `create_requests` results in the expect state both with and without payload"); + } + + #[test] + fn create_requests_with_invalid_inputs_fails() { + todo!("wrong inputs for `create_requests` should cause errors"); + } + + #[test] + fn create_response_with_correct_input_clears_state_accordingly() { + todo!("should update internal state correctly") + } + + #[test] + fn create_response_with_invalid_input_produces_errors() { + todo!("should update internal state correctly") + } + + #[test] + fn custom_errors_should_end_protocol_processing_data() { + todo!("ensure that custom errors produce a message and end the processing of data") + } + + #[test] + fn use_case_send_request_with_no_payload() { + todo!("simulate a working request that sends a single request with no payload, should produce appropriate events on receiving side, using transmissions inputs"); + } + + #[test] + fn model_based_single_roundtrip_test() { + todo!("model a single request interaction with various outcomes and test across various transmission stutter steps"); + } + + #[test] + fn error_codes_set_appropriately_on_request_reception() { + todo!("sending invalid requests should produce the appropriate errors") + } + + #[test] + fn error_codes_set_appropriately_on_response_reception() { + todo!("sending invalid responses should produce the appropriate errors") + } + + #[test] + fn exceeding_cancellation_allowance_triggers_error() { + todo!("should not be possible to exceed the cancellation allowance") + } + + #[test] + fn cancelling_requests_clears_state_and_causes_dropping_of_outbound_replies() { + todo!("if a cancellation for a request is received, the outbound response should be cancelled, and a cancellation produced as well") + } + #[test] fn response_with_no_payload_is_cleared_from_buffer() { + // This test is fairly specific from a concrete bug. In general, buffer advancement is + // tested in other tests as one of many condition checks. + let mut protocol: JulietProtocol<16> = ProtocolBuilder::with_default_channel_config( ChannelConfiguration::new() .with_max_request_payload_size(4096) @@ -963,7 +1068,4 @@ mod tests { assert_eq!(response_raw.remaining(), 0); } - - // TODO: Additional tests checking buffer is advanced properly when receiving in - // `process_incoming`. } From 012077e326a82c69475979fb7efd31cd78891e39 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 11:49:00 +0200 Subject: [PATCH 624/735] juliet: Add first set of tests for helper methods in `protocol` module --- juliet/src/protocol.rs | 208 +++++++++++++++++++++++++++++++++++------ 1 file changed, 180 insertions(+), 28 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 9eb9f32c19..e7f969ff54 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -75,7 +75,10 @@ impl MaxFrameSize { /// Will panic if the given maximum frame size is less than [`MaxFrameSize::MIN`]. #[inline(always)] pub const fn new(max_frame_size: u32) -> Self { - assert!(max_frame_size >= Self::MIN); + assert!( + max_frame_size >= Self::MIN, + "given maximum frame size is below permissible minimum for maximum frame size" + ); MaxFrameSize(max_frame_size) } @@ -250,26 +253,10 @@ impl Channel { } } - /// Returns whether or not the peer has exhausted the number of requests allowed. - /// - /// Depending on the size of the payload an [`OutgoingMessage`] may span multiple frames. On a - /// single channel, only one multi-frame message may be in the process of sending at a time, - /// thus it is not permissible to begin sending frames of a different multi-frame message before - /// the send of a previous one has been completed. - /// - /// Additional single-frame messages can be interspersed in between at will. - /// - /// [`JulietProtocol`] does not track whether or not a multi-frame message is in-flight; it is - /// up to the caller to ensure no second multi-frame message commences sending before the first - /// one completes. - /// - /// This problem can be avoided in its entirety if all frames of all messages created on a - /// single channel are sent in the order they are created. - /// - /// Additionally frames of a single message may also not be reordered. + /// Returns whether or not the peer has exhausted the number of in-flight requests allowed. #[inline] pub fn is_at_max_incoming_requests(&self) -> bool { - self.incoming_requests.len() == self.config.request_limit as usize + self.incoming_requests.len() >= self.config.request_limit as usize } /// Increments the cancellation allowance if possible. @@ -912,44 +899,209 @@ pub const fn payload_is_multi_frame(max_frame_size: MaxFrameSize, payload_len: u #[cfg(test)] mod tests { + use std::collections::HashSet; + use bytes::{Buf, Bytes, BytesMut}; use crate::{ header::{Header, Kind}, - protocol::CompletedRead, + protocol::{CompletedRead, LocalProtocolViolation}, ChannelConfiguration, ChannelId, Id, }; - use super::{JulietProtocol, ProtocolBuilder}; + use super::{Channel, JulietProtocol, MaxFrameSize, ProtocolBuilder}; + + #[test] + fn max_frame_size_works() { + let sz = MaxFrameSize::new(1234); + assert_eq!(sz.get(), 1234); + assert_eq!(sz.without_header(), 1230); + + // Smallest allowed: + assert_eq!(MaxFrameSize::MIN, 10); + let small = MaxFrameSize::new(10); + assert_eq!(small.get(), 10); + assert_eq!(small.without_header(), 6); + } #[test] - fn max_frame_size_implemented_correctly() { - todo!("ensure methods on max frame size work as they should"); + #[should_panic(expected = "permissible minimum for maximum frame size")] + fn max_frame_size_panics_on_too_small_size() { + MaxFrameSize::new(MaxFrameSize::MIN - 1); } #[test] fn request_id_generation_generates_unique_ids() { - todo!("ensure request ids generate unique IDs"); + let mut channel = Channel::new(Default::default()); + + // IDs are sequential. + assert_eq!(channel.generate_request_id(), Some(Id::new(1))); + assert_eq!(channel.generate_request_id(), Some(Id::new(2))); + assert_eq!(channel.generate_request_id(), Some(Id::new(3))); + + // Manipulate internal counter, expecting rollover. + channel.prev_request_id = u16::MAX - 2; + assert_eq!(channel.generate_request_id(), Some(Id::new(u16::MAX - 1))); + assert_eq!(channel.generate_request_id(), Some(Id::new(u16::MAX))); + assert_eq!(channel.generate_request_id(), Some(Id::new(0))); + assert_eq!(channel.generate_request_id(), Some(Id::new(1))); + + // Insert some request IDs to mark them as used, causing them to be skipped. + channel.outgoing_requests.extend([1, 2, 3, 5].map(Id::new)); + assert_eq!(channel.generate_request_id(), Some(Id::new(4))); + assert_eq!(channel.generate_request_id(), Some(Id::new(6))); } #[test] fn allowed_to_send_throttles_when_appropriate() { - todo!("`allowed_to_send_request` should block/clear sending"); + // A channel with a request limit of 0 is unusable, but legal. + assert!( + !Channel::new(ChannelConfiguration::new().with_request_limit(0)) + .allowed_to_send_request() + ); + + // Capacity: 1 + let mut channel = Channel::new(ChannelConfiguration::new().with_request_limit(1)); + assert!(channel.allowed_to_send_request()); + + // Incoming requests should not affect this. + channel.incoming_requests.insert(Id::new(1234)); + channel.incoming_requests.insert(Id::new(5678)); + channel.incoming_requests.insert(Id::new(9010)); + assert!(channel.allowed_to_send_request()); + + // Fill up capacity. + channel.outgoing_requests.insert(Id::new(1)); + assert!(!channel.allowed_to_send_request()); + + // Capacity: 2 + let mut channel = Channel::new(ChannelConfiguration::new().with_request_limit(2)); + assert!(channel.allowed_to_send_request()); + channel.outgoing_requests.insert(Id::new(1)); + assert!(channel.allowed_to_send_request()); + channel.outgoing_requests.insert(Id::new(2)); + assert!(!channel.allowed_to_send_request()); } #[test] fn is_at_max_incoming_requests_works() { - todo!("ensure `is_at_max_incoming_requests` is implemented correctly"); + // A channel with a request limit of 0 is legal. + assert!( + Channel::new(ChannelConfiguration::new().with_request_limit(0)) + .is_at_max_incoming_requests() + ); + + // Capacity: 1 + let mut channel = Channel::new(ChannelConfiguration::new().with_request_limit(1)); + assert!(!channel.is_at_max_incoming_requests()); + + // Inserting outgoing requests should not prompt any change to incoming. + channel.outgoing_requests.insert(Id::new(1234)); + channel.outgoing_requests.insert(Id::new(4567)); + assert!(!channel.is_at_max_incoming_requests()); + + channel.incoming_requests.insert(Id::new(1)); + assert!(channel.is_at_max_incoming_requests()); + + // Capacity: 2 + let mut channel = Channel::new(ChannelConfiguration::new().with_request_limit(2)); + assert!(!channel.is_at_max_incoming_requests()); + channel.incoming_requests.insert(Id::new(1)); + assert!(!channel.is_at_max_incoming_requests()); + channel.incoming_requests.insert(Id::new(2)); + assert!(channel.is_at_max_incoming_requests()); } #[test] fn cancellation_allowance_incrementation_works() { - todo!("ensure lower level cancellation allowance functions work"); + // With a 0 request limit, we also don't allow any cancellations. + let mut channel = Channel::new(ChannelConfiguration::new().with_request_limit(0)); + channel.increment_cancellation_allowance(); + + assert_eq!(channel.cancellation_allowance, 0); + + // Ensure that the cancellation allowance cannot exceed request limit. + let mut channel = Channel::new(ChannelConfiguration::new().with_request_limit(3)); + channel.increment_cancellation_allowance(); + assert_eq!(channel.cancellation_allowance, 1); + channel.increment_cancellation_allowance(); + assert_eq!(channel.cancellation_allowance, 2); + channel.increment_cancellation_allowance(); + assert_eq!(channel.cancellation_allowance, 3); + channel.increment_cancellation_allowance(); + assert_eq!(channel.cancellation_allowance, 3); + channel.increment_cancellation_allowance(); + assert_eq!(channel.cancellation_allowance, 3); } #[test] fn test_channel_lookups_work() { - todo!("ensure channel lookups work, may have to add additional examples if panicking"); + let mut protocol: JulietProtocol<3> = ProtocolBuilder::new().build(); + + // We mark channels by inserting an ID into them, that way we can ensure we're not getting + // back the same channel every time. + protocol + .lookup_channel_mut(ChannelId(0)) + .expect("channel missing") + .outgoing_requests + .insert(Id::new(100)); + protocol + .lookup_channel_mut(ChannelId(1)) + .expect("channel missing") + .outgoing_requests + .insert(Id::new(101)); + protocol + .lookup_channel_mut(ChannelId(2)) + .expect("channel missing") + .outgoing_requests + .insert(Id::new(102)); + assert!(matches!( + protocol.lookup_channel_mut(ChannelId(3)), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(3))) + )); + assert!(matches!( + protocol.lookup_channel_mut(ChannelId(4)), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(4))) + )); + assert!(matches!( + protocol.lookup_channel_mut(ChannelId(255)), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(255))) + )); + + // Now look up the channels and ensure they contain the right values + assert_eq!( + protocol + .lookup_channel(ChannelId(0)) + .expect("channel missing") + .outgoing_requests, + HashSet::from([Id::new(100)]) + ); + assert_eq!( + protocol + .lookup_channel(ChannelId(1)) + .expect("channel missing") + .outgoing_requests, + HashSet::from([Id::new(101)]) + ); + assert_eq!( + protocol + .lookup_channel(ChannelId(2)) + .expect("channel missing") + .outgoing_requests, + HashSet::from([Id::new(102)]) + ); + assert!(matches!( + protocol.lookup_channel(ChannelId(3)), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(3))) + )); + assert!(matches!( + protocol.lookup_channel(ChannelId(4)), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(4))) + )); + assert!(matches!( + protocol.lookup_channel(ChannelId(255)), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(255))) + )); } #[test] From 3172b962df7d8f3275a25515fa32cc9ce633dcc6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 11:51:09 +0200 Subject: [PATCH 625/735] juliet: Remove `derive_more` dependency --- Cargo.lock | 22 +++++----------------- juliet/Cargo.toml | 5 ++--- 2 files changed, 7 insertions(+), 20 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index d88f9462f4..0b167d6d0a 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1323,17 +1323,6 @@ dependencies = [ "zeroize", ] -[[package]] -name = "derivative" -version = "2.2.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b" -dependencies = [ - "proc-macro2 1.0.56", - "quote 1.0.26", - "syn 1.0.109", -] - [[package]] name = "derive_more" version = "0.99.17" @@ -1349,18 +1338,18 @@ dependencies = [ [[package]] name = "derive_more" -version = "1.0.0-beta.2" +version = "1.0.0-beta.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d79dfbcc1f34f3b3a0ce7574276f6f198acb811d70dd19d9dcbfe6263a83d983" +checksum = "f1335e0609db169713d97c340dd769773c6c63cd953c8fcf1063043fd3d6dd11" dependencies = [ "derive_more-impl", ] [[package]] name = "derive_more-impl" -version = "1.0.0-beta.2" +version = "1.0.0-beta.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "395aee42a456ecfd4c7034be5011e1a98edcbab2611867c8988a0f40d0bb242a" +checksum = "df541e0e2a8069352be228ce4b85a1da6f59bfd325e56f57e4b241babbc3f832" dependencies = [ "proc-macro2 1.0.56", "quote 1.0.26", @@ -3203,8 +3192,7 @@ dependencies = [ "bimap", "bytemuck", "bytes", - "derivative", - "derive_more 1.0.0-beta.2", + "derive_more 1.0.0-beta.3", "futures", "hex_fmt", "proptest", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 18b8ab92dd..446c0c2ad9 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -17,6 +17,8 @@ tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } tracing = { version = "0.1.37", optional = true } [dev-dependencies] +# TODO: Upgrade `derive_more` to non-beta version, once released. +derive_more = { version = "1.0.0-beta.2", features = [ "debug" ] } tokio = { version = "1.29.1", features = [ "macros", "net", @@ -29,9 +31,6 @@ proptest-derive = "0.3.0" rand = "0.8.5" tracing = "0.1.37" tracing-subscriber = { version = "0.3.17", features = [ "env-filter" ] } -derivative = "2.2.0" -# TODO: Upgrade `derive_more` to non-beta version, once released. -derive_more = { version = "1.0.0-beta.2", features = [ "debug" ] } [[example]] name = "fizzbuzz" From 70aa9a4dd1d3364cbc66ab3f86433ba91139b099 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 12:01:15 +0200 Subject: [PATCH 626/735] juliet: Use `strum::EnumCount` instead of manual `HIGHEST` constant --- Cargo.lock | 31 +++++++++++++++++++++++++++---- juliet/Cargo.toml | 1 + juliet/src/header.rs | 25 +++++-------------------- 3 files changed, 33 insertions(+), 24 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 0b167d6d0a..9f2347a716 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -564,7 +564,7 @@ dependencies = [ "serde", "serde_bytes", "serde_json", - "strum", + "strum 0.24.1", "tempfile", "thiserror", "tracing", @@ -691,7 +691,7 @@ dependencies = [ "static_assertions", "stats_alloc", "structopt", - "strum", + "strum 0.24.1", "sys-info", "tempfile", "thiserror", @@ -747,7 +747,7 @@ dependencies = [ "serde_bytes", "serde_json", "serde_test", - "strum", + "strum 0.24.1", "tempfile", "thiserror", "uint", @@ -3199,6 +3199,7 @@ dependencies = [ "proptest-attr-macro", "proptest-derive", "rand 0.8.5", + "strum 0.25.0", "thiserror", "tokio", "tracing", @@ -5149,7 +5150,16 @@ version = "0.24.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "063e6045c0e62079840579a7e47a355ae92f60eb74daaf156fb1e84ba164e63f" dependencies = [ - "strum_macros", + "strum_macros 0.24.3", +] + +[[package]] +name = "strum" +version = "0.25.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125" +dependencies = [ + "strum_macros 0.25.2", ] [[package]] @@ -5165,6 +5175,19 @@ dependencies = [ "syn 1.0.109", ] +[[package]] +name = "strum_macros" +version = "0.25.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ad8d03b598d3d0fff69bf533ee3ef19b8eeb342729596df84bcc7e1f96ec4059" +dependencies = [ + "heck 0.4.1", + "proc-macro2 1.0.56", + "quote 1.0.26", + "rustversion", + "syn 2.0.15", +] + [[package]] name = "subtle" version = "2.4.1" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 446c0c2ad9..d850d2eb6b 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -12,6 +12,7 @@ bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" futures = "0.3.28" hex_fmt = "0.3.0" +strum = { version = "0.25.0", features = ["derive"] } thiserror = "1.0.40" tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } tracing = { version = "0.1.37", optional = true } diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 918e93b198..1806800c8b 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -6,6 +6,7 @@ use std::fmt::{Debug, Display}; use bytemuck::{Pod, Zeroable}; use hex_fmt::HexFmt; +use strum::EnumCount; use thiserror::Error; use crate::{ChannelId, Id}; @@ -47,7 +48,7 @@ impl Debug for Header { } /// Error kind, from the kind byte. -#[derive(Copy, Clone, Debug, Error, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, EnumCount, Error, Eq, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] pub enum ErrorKind { @@ -95,11 +96,10 @@ pub enum ErrorKind { /// Peer sent a request cancellation exceeding the cancellation allowance. #[error("cancellation limit exceeded")] CancellationLimitExceeded = 13, - // Note: When adding additional kinds, update the `HIGHEST` associated constant. } /// Frame kind, from the kind byte. -#[derive(Copy, Clone, Debug, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, EnumCount, Eq, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] @@ -116,21 +116,6 @@ pub enum Kind { CancelReq = 4, /// Cancellation of a response. CancelResp = 5, - // Note: When adding additional kinds, update the `HIGHEST` associated constant. -} - -impl ErrorKind { - /// The highest error kind number. - /// - /// Only error kinds <= `HIGHEST` are valid. - const HIGHEST: Self = Self::CancellationLimitExceeded; -} - -impl Kind { - /// The highest frame kind number. - /// - /// Only error kinds <= `HIGHEST` are valid. - const HIGHEST: Self = Self::CancelResp; } impl Header { @@ -174,11 +159,11 @@ impl Header { // Check that the kind byte is within valid range. if header.is_error() { - if (header.kind_byte() & Self::KIND_ERR_MASK) > ErrorKind::HIGHEST as u8 { + if (header.kind_byte() & Self::KIND_ERR_MASK) >= ErrorKind::COUNT as u8 { return None; } } else { - if (header.kind_byte() & Self::KIND_MASK) > Kind::HIGHEST as u8 { + if (header.kind_byte() & Self::KIND_MASK) >= Kind::COUNT as u8 { return None; } From c35083ecb5b02aba9dd2349d78e6a5c51fb28a04 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 12:10:06 +0200 Subject: [PATCH 627/735] juliet: Replace more hand-rolled implementations with `strum` derives --- juliet/src/header.rs | 46 ++++++++++++++++---------------------------- 1 file changed, 17 insertions(+), 29 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 1806800c8b..0de2efa0f4 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -6,7 +6,7 @@ use std::fmt::{Debug, Display}; use bytemuck::{Pod, Zeroable}; use hex_fmt::HexFmt; -use strum::EnumCount; +use strum::{EnumCount, EnumIter, FromRepr}; use thiserror::Error; use crate::{ChannelId, Id}; @@ -48,7 +48,7 @@ impl Debug for Header { } /// Error kind, from the kind byte. -#[derive(Copy, Clone, Debug, EnumCount, Error, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, EnumCount, EnumIter, Error, FromRepr, Eq, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] pub enum ErrorKind { @@ -99,7 +99,7 @@ pub enum ErrorKind { } /// Frame kind, from the kind byte. -#[derive(Copy, Clone, Debug, EnumCount, Eq, PartialEq)] +#[derive(Copy, Clone, Debug, EnumCount, EnumIter, Eq, FromRepr, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] @@ -219,23 +219,13 @@ impl Header { #[inline(always)] pub const fn error_kind(self) -> ErrorKind { debug_assert!(self.is_error()); - match self.kind_byte() & Self::KIND_ERR_MASK { - 0 => ErrorKind::Other, - 1 => ErrorKind::MaxFrameSizeExceeded, - 2 => ErrorKind::InvalidHeader, - 3 => ErrorKind::SegmentViolation, - 4 => ErrorKind::BadVarInt, - 5 => ErrorKind::InvalidChannel, - 6 => ErrorKind::InProgress, - 7 => ErrorKind::ResponseTooLarge, - 8 => ErrorKind::RequestTooLarge, - 9 => ErrorKind::DuplicateRequest, - 10 => ErrorKind::FictitiousRequest, - 11 => ErrorKind::RequestLimitExceeded, - 12 => ErrorKind::FictitiousCancel, - 13 => ErrorKind::CancellationLimitExceeded, - // Would violate validity invariant. - _ => unreachable!(), + match ErrorKind::from_repr(self.kind_byte() & Self::KIND_ERR_MASK) { + Some(value) => value, + None => { + // While this is representable, it would violate the invariant of this type that is + // enforced by [`Header::parse`]. + unreachable!() + } } } @@ -247,15 +237,13 @@ impl Header { #[inline(always)] pub const fn kind(self) -> Kind { debug_assert!(!self.is_error()); - match self.kind_byte() & Self::KIND_MASK { - 0 => Kind::Request, - 1 => Kind::Response, - 2 => Kind::RequestPl, - 3 => Kind::ResponsePl, - 4 => Kind::CancelReq, - 5 => Kind::CancelResp, - // Would violate validity invariant. - _ => unreachable!(), + + match Kind::from_repr(self.kind_byte() & Self::KIND_MASK) { + Some(kind) => kind, + None => { + // Invariant enfored by [`Header::parse`]. + unreachable!() + } } } From 80c6689fdf283a691fe8f79f3829c884a73c0f62 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 13:51:26 +0200 Subject: [PATCH 628/735] juliet: Add basic request/response/error logic in `protocol` tests --- juliet/src/protocol.rs | 214 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 189 insertions(+), 25 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index e7f969ff54..80910314ee 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -597,6 +597,9 @@ impl JulietProtocol { /// Creates an error message with type [`ErrorKind::Other`]. /// + /// The resulting [`OutgoingMessage`] is the last message that should be sent to the peer, the + /// caller should ensure no more messages are sent. + /// /// # Local protocol violations /// /// Will return a [`LocalProtocolViolation`] when attempting to send on an invalid channel. @@ -902,14 +905,16 @@ mod tests { use std::collections::HashSet; use bytes::{Buf, Bytes, BytesMut}; + use proptest_attr_macro::proptest; + use strum::IntoEnumIterator; use crate::{ - header::{Header, Kind}, - protocol::{CompletedRead, LocalProtocolViolation}, - ChannelConfiguration, ChannelId, Id, + header::{ErrorKind, Header, Kind}, + protocol::{payload_is_multi_frame, CompletedRead, LocalProtocolViolation}, + ChannelConfiguration, ChannelId, Id, Outcome, }; - use super::{Channel, JulietProtocol, MaxFrameSize, ProtocolBuilder}; + use super::{err_msg, Channel, JulietProtocol, MaxFrameSize, ProtocolBuilder}; #[test] fn max_frame_size_works() { @@ -1104,46 +1109,205 @@ mod tests { )); } - #[test] - fn err_msg_works() { - todo!("the `err_msg` helper function should work"); + #[proptest] + fn err_msg_works(header: Header) { + for err_kind in ErrorKind::iter() { + let outcome = err_msg::<()>(header, err_kind); + if let Outcome::Fatal(msg) = outcome { + assert_eq!(msg.header().id(), header.id()); + assert_eq!(msg.header().channel(), header.channel()); + assert!(msg.header().is_error()); + assert_eq!(msg.header().error_kind(), err_kind); + } else { + panic!("expected outcome to be fatal"); + } + } } #[test] - fn multi_frame_detection_works() { - todo!("ensure `payload_is_multi_frame` works") - } - - #[test] - fn ensure_allowed_to_send_request_gates_correctly() { - todo!( - "`allowed_to_send_request` should allow the agreed upon number of in-flight requests" - ); + fn multi_frame_estimation_works() { + let max_frame_size = MaxFrameSize::new(512); + + // Note: 512 takes two bytes to encode, so the total overhead is 6 bytes. + + assert!(!payload_is_multi_frame(max_frame_size, 0)); + assert!(!payload_is_multi_frame(max_frame_size, 1)); + assert!(!payload_is_multi_frame(max_frame_size, 5)); + assert!(!payload_is_multi_frame(max_frame_size, 6)); + assert!(!payload_is_multi_frame(max_frame_size, 7)); + assert!(!payload_is_multi_frame(max_frame_size, 505)); + assert!(!payload_is_multi_frame(max_frame_size, 506)); + assert!(payload_is_multi_frame(max_frame_size, 507)); + assert!(payload_is_multi_frame(max_frame_size, 508)); + assert!(payload_is_multi_frame(max_frame_size, u32::MAX as usize)); } #[test] fn create_requests_with_correct_input_sets_state_accordingly() { - todo!("ensure that calling `create_requests` results in the expect state both with and without payload"); + const LONG_PAYLOAD: &[u8] = + b"large payload large payload large payload large payload large payload large payload"; + + // Try different payload sizes (no payload, single frame payload, multiframe payload). + for payload in [ + None, + Some(Bytes::from_static(b"asdf")), + Some(Bytes::from_static(LONG_PAYLOAD)), + ] { + // Configure a protocol with payload, at least 10 bytes segment size. + let mut protocol = ProtocolBuilder::<5>::with_default_channel_config( + ChannelConfiguration::new() + .with_request_limit(1) + .with_max_request_payload_size(1024), + ) + .max_frame_size(20) + .build(); + + let channel = ChannelId::new(2); + let other_channel = ChannelId::new(0); + + assert!(protocol + .allowed_to_send_request(channel) + .expect("channel should exist")); + let expected_header_kind = if payload.is_none() { + Kind::Request + } else { + Kind::RequestPl + }; + + let req = protocol + .create_request(channel, payload) + .expect("should be able to create request"); + + assert_eq!(req.header().channel(), channel); + assert_eq!(req.header().kind(), expected_header_kind); + + // We expect exactly one id in the outgoing set. + assert_eq!( + protocol + .lookup_channel(channel) + .expect("should have channel") + .outgoing_requests, + [Id::new(1)].into() + ); + + // We've used up the default limit of one. + assert!(!protocol + .allowed_to_send_request(channel) + .expect("channel should exist")); + + // We should still be able to create requests on a different channel. + assert!(protocol + .lookup_channel(other_channel) + .expect("channel 0 should exist") + .outgoing_requests + .is_empty()); + + let other_req = protocol + .create_request(other_channel, None) + .expect("should be able to create request"); + + assert_eq!(other_req.header().channel(), other_channel); + assert_eq!(other_req.header().kind(), Kind::Request); + + // We expect exactly one id in the outgoing set of each channel now. + assert_eq!( + protocol + .lookup_channel(channel) + .expect("should have channel") + .outgoing_requests, + [Id::new(1)].into() + ); + assert_eq!( + protocol + .lookup_channel(other_channel) + .expect("should have channel") + .outgoing_requests, + [Id::new(1)].into() + ); + } } #[test] fn create_requests_with_invalid_inputs_fails() { - todo!("wrong inputs for `create_requests` should cause errors"); + // Configure a protocol with payload, at least 10 bytes segment size. + let mut protocol = ProtocolBuilder::<2>::new().build(); + + let channel = ChannelId::new(1); + + // Try an invalid channel, should result in an error. + assert!(matches!( + protocol.create_request(ChannelId::new(2), None), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(2))) + )); + + assert!(protocol + .allowed_to_send_request(channel) + .expect("channel should exist")); + let _ = protocol + .create_request(channel, None) + .expect("should be able to create request"); + + assert!(matches!( + protocol.create_request(channel, None), + Err(LocalProtocolViolation::WouldExceedRequestLimit) + )); } #[test] fn create_response_with_correct_input_clears_state_accordingly() { - todo!("should update internal state correctly") - } + let mut protocol = ProtocolBuilder::<4>::new().build(); - #[test] - fn create_response_with_invalid_input_produces_errors() { - todo!("should update internal state correctly") + let channel = ChannelId::new(3); + + // Inject a channel to have already received two requests. + let req_id = Id::new(9); + let leftover_id = Id::new(77); + protocol + .lookup_channel_mut(channel) + .expect("should find channel") + .incoming_requests + .extend([req_id, leftover_id]); + + // Responding to a non-existent request should not result in a message. + assert!(protocol + .create_response(channel, Id::new(12), None) + .expect("should allow attempting to respond to non-existent request") + .is_none()); + + // Actual response. + let resp = protocol + .create_response(channel, req_id, None) + .expect("should allow responding to request") + .expect("should actually answer request"); + + assert_eq!(resp.header().channel(), channel); + assert_eq!(resp.header().id(), req_id); + assert_eq!(resp.header().kind(), Kind::Response); + + // Outgoing set should be empty afterwards. + assert_eq!( + protocol + .lookup_channel(channel) + .expect("should find channel") + .incoming_requests, + [leftover_id].into() + ); } #[test] - fn custom_errors_should_end_protocol_processing_data() { - todo!("ensure that custom errors produce a message and end the processing of data") + fn custom_errors_are_possible() { + let mut protocol = ProtocolBuilder::<4>::new().build(); + + // The channel ID for custom errors can be arbitrary! + let id = Id::new(12345); + let channel = ChannelId::new(123); + let outgoing = protocol + .custom_error(channel, id, Bytes::new()) + .expect("should be able to send custom error"); + + assert_eq!(outgoing.header().id(), id); + assert_eq!(outgoing.header().channel(), channel); + assert_eq!(outgoing.header().error_kind(), ErrorKind::Other); } #[test] From c1ed004975d7d375ec36db1cb83820f0bc01a900 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 14:39:11 +0200 Subject: [PATCH 629/735] juliet: Add first roundtrip test on protocol level --- Cargo.lock | 1 + juliet/Cargo.toml | 1 + juliet/src/protocol.rs | 73 +++++++++++++++++++++++++++++++++++++++++- 3 files changed, 74 insertions(+), 1 deletion(-) diff --git a/Cargo.lock b/Cargo.lock index 9f2347a716..a799af9b20 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3189,6 +3189,7 @@ name = "juliet" version = "0.1.0" dependencies = [ "array-init", + "assert_matches", "bimap", "bytemuck", "bytes", diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index d850d2eb6b..1660917862 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -32,6 +32,7 @@ proptest-derive = "0.3.0" rand = "0.8.5" tracing = "0.1.37" tracing-subscriber = { version = "0.3.17", features = [ "env-filter" ] } +assert_matches = "1.5.0" [[example]] name = "fizzbuzz" diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 80910314ee..2e498486c1 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -1310,9 +1310,80 @@ mod tests { assert_eq!(outgoing.header().error_kind(), ErrorKind::Other); } + /// Maximum frame size used in many tests. + const MAX_FRAME_SIZE: MaxFrameSize = MaxFrameSize::new(20); + + /// Construct a reasonable configuration for tests. + const fn test_configuration() -> ProtocolBuilder<4> { + ProtocolBuilder::with_default_channel_config( + ChannelConfiguration::new() + .with_request_limit(2) + .with_max_request_payload_size(40) + .with_max_response_payload_size(40), + ) + .max_frame_size(MAX_FRAME_SIZE.get()) + } + #[test] fn use_case_send_request_with_no_payload() { - todo!("simulate a working request that sends a single request with no payload, should produce appropriate events on receiving side, using transmissions inputs"); + let pb = test_configuration(); + + let mut server = pb.build(); + let mut client = pb.build(); + + let common_channel = ChannelId::new(2); + + let mut req_bytes = BytesMut::from( + client + .create_request(common_channel, None) + .expect("should be able to create request") + .to_bytes(MAX_FRAME_SIZE) + .as_ref(), + ); + + let server_completed_read = server + .process_incoming(&mut req_bytes) + .expect("should yield completed read"); + assert_matches::assert_matches!( + server_completed_read, + CompletedRead::NewRequest { + channel, + id, + payload + } => { + assert_eq!(channel, common_channel); + assert_eq!(id, Id::new(1)); + assert!(payload.is_none()); + } + ); + assert!(req_bytes.is_empty(), "should consume entire buffer"); + + // Server has received the client's request, return a response. + let mut resp_bytes = BytesMut::from( + server + .create_response(common_channel, Id::new(1), None) + .expect("should be able to create response") + .expect("should produce response") + .to_bytes(MAX_FRAME_SIZE) + .as_ref(), + ); + + let client_completed_read = client + .process_incoming(&mut resp_bytes) + .expect("should yield response"); + assert_matches::assert_matches!( + client_completed_read, + CompletedRead::ReceivedResponse { + channel, + id, + payload + } => { + assert_eq!(channel, common_channel); + assert_eq!(id, Id::new(1)); + assert!(payload.is_none()); + } + ); + assert!(resp_bytes.is_empty(), "should consume entire buffer"); } #[test] From db139d5417c8c544191d7b7930255bb81b01d92e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 15:28:42 +0200 Subject: [PATCH 630/735] juliet: Cleanup/generalize setup for testing back and forth between peers --- juliet/src/lib.rs | 15 ++++ juliet/src/protocol.rs | 186 ++++++++++++++++++++++++++++++----------- 2 files changed, 153 insertions(+), 48 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index ff3788d976..9ed82301bb 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -160,6 +160,21 @@ impl Outcome { .expect("did not expect 0-byte `Incomplete`"), ) } + + /// Converts an [`Outcome`] into a result, panicking on [`Outcome::Incomplete`]. + /// + /// This function should never be used outside tests. + #[cfg(test)] + #[track_caller] + pub fn to_result(self) -> Result { + match self { + Outcome::Incomplete(missing) => { + panic!("did not expect incompletion by {} bytes when", missing) + } + Outcome::Fatal(e) => Err(e), + Outcome::Success(s) => Ok(s), + } + } } /// `try!` for [`Outcome`]. diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 2e498486c1..6e21d60de8 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -902,7 +902,7 @@ pub const fn payload_is_multi_frame(max_frame_size: MaxFrameSize, payload_len: u #[cfg(test)] mod tests { - use std::collections::HashSet; + use std::{collections::HashSet, ops::Not}; use bytes::{Buf, Bytes, BytesMut}; use proptest_attr_macro::proptest; @@ -914,7 +914,7 @@ mod tests { ChannelConfiguration, ChannelId, Id, Outcome, }; - use super::{err_msg, Channel, JulietProtocol, MaxFrameSize, ProtocolBuilder}; + use super::{err_msg, Channel, JulietProtocol, MaxFrameSize, OutgoingMessage, ProtocolBuilder}; #[test] fn max_frame_size_works() { @@ -1310,40 +1310,139 @@ mod tests { assert_eq!(outgoing.header().error_kind(), ErrorKind::Other); } - /// Maximum frame size used in many tests. - const MAX_FRAME_SIZE: MaxFrameSize = MaxFrameSize::new(20); + /// A simplified setup for testing back and forth between two peers. + /// + /// Note that the terms "client" and "server" are used loosely here, as they are equal peers. + /// Designating one as the client (typically the one sending the first message) and the other + /// one as the server helps tracking these though, as it is less easily confused than "peer_a" + /// and "peer_b". + struct TestingSetup { + /// The "client"'s protocol state. + client: JulietProtocol<4>, + /// The "server"'s protocol state. + server: JulietProtocol<4>, + /// The channel communication is sent across for these tests. + common_channel: ChannelId, + /// Maximum frame size in test environment. + max_frame_size: MaxFrameSize, + } - /// Construct a reasonable configuration for tests. - const fn test_configuration() -> ProtocolBuilder<4> { - ProtocolBuilder::with_default_channel_config( - ChannelConfiguration::new() - .with_request_limit(2) - .with_max_request_payload_size(40) - .with_max_response_payload_size(40), - ) - .max_frame_size(MAX_FRAME_SIZE.get()) + /// Peer selection. + #[derive(Clone, Copy, Debug, Eq, PartialEq)] + + enum Peer { + Client, + Server, } - #[test] - fn use_case_send_request_with_no_payload() { - let pb = test_configuration(); + impl Not for Peer { + type Output = Self; + + fn not(self) -> Self::Output { + match self { + Client => Server, + Server => Client, + } + } + } - let mut server = pb.build(); - let mut client = pb.build(); + use Peer::{Client, Server}; - let common_channel = ChannelId::new(2); + impl TestingSetup { + /// Instantiates a new testing setup. + fn new() -> Self { + let max_frame_size = MaxFrameSize::new(20); + let pb = ProtocolBuilder::with_default_channel_config( + ChannelConfiguration::new() + .with_request_limit(2) + .with_max_request_payload_size(40) + .with_max_response_payload_size(40), + ) + .max_frame_size(max_frame_size.get()); + let common_channel = ChannelId(2); - let mut req_bytes = BytesMut::from( - client - .create_request(common_channel, None) - .expect("should be able to create request") - .to_bytes(MAX_FRAME_SIZE) - .as_ref(), - ); + let server = pb.build(); + let client = pb.build(); + + TestingSetup { + client, + server, + common_channel, + max_frame_size, + } + } + + #[inline] + fn get_peer_mut(&mut self, target: Peer) -> &mut JulietProtocol<4> { + match target { + Client => &mut self.client, + Server => &mut self.server, + } + } + + /// Take `msg` and send it to `dest`. + /// + /// Will check that the message is fully processed and removed on [`Outcome::Success`]. + fn recv_on( + &mut self, + dest: Peer, + msg: OutgoingMessage, + ) -> Result { + let mut msg_bytes = BytesMut::from(msg.to_bytes(self.max_frame_size).as_ref()); + + self.get_peer_mut(dest) + .process_incoming(&mut msg_bytes) + .to_result() + .map(|v| { + assert!(msg_bytes.is_empty(), "client should have consumed input"); + v + }) + } + + /// Make the client create a new request, return the outcome of the server's reception. + fn create_and_send_request( + &mut self, + from: Peer, + payload: Option, + ) -> Result { + let channel = self.common_channel; + let msg = self + .get_peer_mut(from) + .create_request(channel, payload) + .expect("should be able to create request"); + + self.recv_on(!from, msg) + } + + /// Make the server create a new response, return the outcome of the client's reception. + /// + /// If no response was scheduled for sending, returns `None`. + fn create_and_send_response( + &mut self, + from: Peer, + id: Id, + payload: Option, + ) -> Option> { + let channel = self.common_channel; + + let msg = self + .get_peer_mut(from) + .create_response(channel, id, payload) + .expect("should be able to create response")?; + + Some(self.recv_on(!from, msg)) + } + } + + #[test] + fn use_case_send_request_with_no_payload() { + let mut env = TestingSetup::new(); + + let expected_id = Id::new(1); + let server_completed_read = env + .create_and_send_request(Client, None) + .expect("server should accept request"); - let server_completed_read = server - .process_incoming(&mut req_bytes) - .expect("should yield completed read"); assert_matches::assert_matches!( server_completed_read, CompletedRead::NewRequest { @@ -1351,26 +1450,18 @@ mod tests { id, payload } => { - assert_eq!(channel, common_channel); - assert_eq!(id, Id::new(1)); + assert_eq!(channel, env.common_channel); + assert_eq!(id, expected_id); assert!(payload.is_none()); } ); - assert!(req_bytes.is_empty(), "should consume entire buffer"); - - // Server has received the client's request, return a response. - let mut resp_bytes = BytesMut::from( - server - .create_response(common_channel, Id::new(1), None) - .expect("should be able to create response") - .expect("should produce response") - .to_bytes(MAX_FRAME_SIZE) - .as_ref(), - ); - let client_completed_read = client - .process_incoming(&mut resp_bytes) - .expect("should yield response"); + // Return a response. + let client_completed_read = env + .create_and_send_response(Server, expected_id, None) + .expect("did not expect response to be dropped") + .expect("shoult not fail to process response on client"); + assert_matches::assert_matches!( client_completed_read, CompletedRead::ReceivedResponse { @@ -1378,12 +1469,11 @@ mod tests { id, payload } => { - assert_eq!(channel, common_channel); - assert_eq!(id, Id::new(1)); + assert_eq!(channel, env.common_channel); + assert_eq!(id, expected_id); assert!(payload.is_none()); } ); - assert!(resp_bytes.is_empty(), "should consume entire buffer"); } #[test] From d4786d1ce92a23191d84a4dcdeffdac82cef3454 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 15:35:28 +0200 Subject: [PATCH 631/735] juliet: Avoid potentially misleading client/server terminology, use Alice/Bob instead, in tests --- juliet/src/protocol.rs | 83 ++++++++++++++++++++++-------------------- 1 file changed, 43 insertions(+), 40 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 6e21d60de8..95b2f1f798 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -1311,16 +1311,11 @@ mod tests { } /// A simplified setup for testing back and forth between two peers. - /// - /// Note that the terms "client" and "server" are used loosely here, as they are equal peers. - /// Designating one as the client (typically the one sending the first message) and the other - /// one as the server helps tracking these though, as it is less easily confused than "peer_a" - /// and "peer_b". struct TestingSetup { - /// The "client"'s protocol state. - client: JulietProtocol<4>, - /// The "server"'s protocol state. - server: JulietProtocol<4>, + /// Alice's protocol state. + alice: JulietProtocol<4>, + /// Bob's protocol state. + bob: JulietProtocol<4>, /// The channel communication is sent across for these tests. common_channel: ChannelId, /// Maximum frame size in test environment. @@ -1328,11 +1323,15 @@ mod tests { } /// Peer selection. + /// + /// Used to select a target when interacting with the test environment. #[derive(Clone, Copy, Debug, Eq, PartialEq)] enum Peer { - Client, - Server, + /// Alice. + Alice, + /// Bob, aka "not Alice". + Bob, } impl Not for Peer { @@ -1340,13 +1339,13 @@ mod tests { fn not(self) -> Self::Output { match self { - Client => Server, - Server => Client, + Alice => Bob, + Bob => Alice, } } } - use Peer::{Client, Server}; + use Peer::{Alice, Bob}; impl TestingSetup { /// Instantiates a new testing setup. @@ -1361,26 +1360,27 @@ mod tests { .max_frame_size(max_frame_size.get()); let common_channel = ChannelId(2); - let server = pb.build(); - let client = pb.build(); + let alice = pb.build(); + let bob = pb.build(); TestingSetup { - client, - server, + alice, + bob, common_channel, max_frame_size, } } + /// Retrieves a handle to the protocol state of the given peer. #[inline] - fn get_peer_mut(&mut self, target: Peer) -> &mut JulietProtocol<4> { - match target { - Client => &mut self.client, - Server => &mut self.server, + fn get_peer_mut(&mut self, peer: Peer) -> &mut JulietProtocol<4> { + match peer { + Alice => &mut self.alice, + Bob => &mut self.bob, } } - /// Take `msg` and send it to `dest`. + /// Take `msg` and send it to peer `dest`. /// /// Will check that the message is fully processed and removed on [`Outcome::Success`]. fn recv_on( @@ -1399,38 +1399,41 @@ mod tests { }) } - /// Make the client create a new request, return the outcome of the server's reception. + /// Creates a new request on peer `origin`, the sends it to the other peer. + /// + /// Returns the outcome of the other peer's reception. fn create_and_send_request( &mut self, - from: Peer, + origin: Peer, payload: Option, ) -> Result { let channel = self.common_channel; let msg = self - .get_peer_mut(from) + .get_peer_mut(origin) .create_request(channel, payload) .expect("should be able to create request"); - self.recv_on(!from, msg) + self.recv_on(!origin, msg) } - /// Make the server create a new response, return the outcome of the client's reception. + /// Creates a new response on peer `origin`, the sends it to the other peer. /// - /// If no response was scheduled for sending, returns `None`. + /// Returns the outcome of the other peer's reception. If no response was scheduled for + /// sending, returns `None`. fn create_and_send_response( &mut self, - from: Peer, + origin: Peer, id: Id, payload: Option, ) -> Option> { let channel = self.common_channel; let msg = self - .get_peer_mut(from) + .get_peer_mut(origin) .create_response(channel, id, payload) .expect("should be able to create response")?; - Some(self.recv_on(!from, msg)) + Some(self.recv_on(!origin, msg)) } } @@ -1439,12 +1442,12 @@ mod tests { let mut env = TestingSetup::new(); let expected_id = Id::new(1); - let server_completed_read = env - .create_and_send_request(Client, None) - .expect("server should accept request"); + let bob_completed_read = env + .create_and_send_request(Alice, None) + .expect("bob should accept request"); assert_matches::assert_matches!( - server_completed_read, + bob_completed_read, CompletedRead::NewRequest { channel, id, @@ -1457,13 +1460,13 @@ mod tests { ); // Return a response. - let client_completed_read = env - .create_and_send_response(Server, expected_id, None) + let alice_completed_read = env + .create_and_send_response(Bob, expected_id, None) .expect("did not expect response to be dropped") - .expect("shoult not fail to process response on client"); + .expect("should not fail to process response on alice"); assert_matches::assert_matches!( - client_completed_read, + alice_completed_read, CompletedRead::ReceivedResponse { channel, id, From 54072034f942ce3a99c368d5942da6f7764ab715 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 23 Aug 2023 15:44:22 +0200 Subject: [PATCH 632/735] juliet: Plan remaining test scenarios for `protocol` --- juliet/src/protocol.rs | 62 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 51 insertions(+), 11 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 95b2f1f798..131fb083e8 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -1438,7 +1438,7 @@ mod tests { } #[test] - fn use_case_send_request_with_no_payload() { + fn use_case_req_no_payload_ok() { let mut env = TestingSetup::new(); let expected_id = Id::new(1); @@ -1480,28 +1480,68 @@ mod tests { } #[test] - fn model_based_single_roundtrip_test() { - todo!("model a single request interaction with various outcomes and test across various transmission stutter steps"); + fn env_req_no_payload_exceed_in_flight_limit() { + todo!(); } #[test] - fn error_codes_set_appropriately_on_request_reception() { - todo!("sending invalid requests should produce the appropriate errors") + fn env_req_no_payload_exceed_req_size_limit() { + todo!(); } #[test] - fn error_codes_set_appropriately_on_response_reception() { - todo!("sending invalid responses should produce the appropriate errors") + fn env_req_no_payload_duplicate_request() { + todo!(); } #[test] - fn exceeding_cancellation_allowance_triggers_error() { - todo!("should not be possible to exceed the cancellation allowance") + fn env_req_no_payload_response_for_ficticious_request() { + todo!(); } #[test] - fn cancelling_requests_clears_state_and_causes_dropping_of_outbound_replies() { - todo!("if a cancellation for a request is received, the outbound response should be cancelled, and a cancellation produced as well") + fn env_req_no_payload_cancellation_for_ficticious_request() { + todo!(); + } + + #[test] + fn env_req_no_payload_request_cancellation_ok() { + todo!(); + } + + #[test] + fn env_req_no_payload_response_cancellation_ok() { + todo!(); + } + + #[test] + fn env_req_no_payload_response_size_limit_exceeded() { + todo!(); + } + + #[test] + fn env_req_no_payload_response_cancellation_limit_exceeded() { + todo!(); + } + + #[test] + fn env_max_frame_size_exceeded() { + todo!(); + } + + #[test] + fn env_invalid_header() { + todo!(); + } + + #[test] + fn env_bad_varint() { + todo!(); + } + + #[test] + fn env_req_with_payloads() { + todo!("cover all cases without payload + segment/size violations"); } #[test] From 9f2d26dec9ab7ed391b420b0eb6665df15ba71f0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 24 Aug 2023 14:15:13 +0200 Subject: [PATCH 633/735] juliet: Refactor and add more testing scenarios for protocol --- juliet/src/protocol.rs | 194 ++++++++++++++++++++++++++++++++--------- 1 file changed, 152 insertions(+), 42 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 131fb083e8..2ba246ffc8 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -295,6 +295,33 @@ impl Channel { pub fn allowed_to_send_request(&self) -> bool { self.outgoing_requests.len() < self.config.request_limit as usize } + + /// Creates a new request, bypassing all client-side checks. + /// + /// Low-level function that does nothing but create a syntactically correct request and track + /// its outgoing ID. This function is not meant to be called outside of this module or its unit + /// tests. See [`JulietProtocol::create_request`] instead. + #[inline(always)] + fn create_unchecked_request( + &mut self, + channel_id: ChannelId, + payload: Option, + ) -> OutgoingMessage { + // The `unwrap_or` below should never be triggered, as long as `u16::MAX` or less + // requests are currently in flight, which is always the case with safe API use. + let id = self.generate_request_id().unwrap_or(Id(0)); + + // Record the outgoing request for later. + self.outgoing_requests.insert(id); + + if let Some(payload) = payload { + let header = Header::new(header::Kind::RequestPl, channel_id, id); + OutgoingMessage::new(header, Some(payload)) + } else { + let header = Header::new(header::Kind::Request, channel_id, id); + OutgoingMessage::new(header, None) + } + } } /// A successful read from the peer. @@ -479,20 +506,7 @@ impl JulietProtocol { return Err(LocalProtocolViolation::WouldExceedRequestLimit); } - // The `unwrap_or` below should never be triggered, as long as `u16::MAX` or less - // requests are currently in flight, which is always the case. - let id = chan.generate_request_id().unwrap_or(Id(0)); - - // Record the outgoing request for later. - chan.outgoing_requests.insert(id); - - if let Some(payload) = payload { - let header = Header::new(header::Kind::RequestPl, channel, id); - Ok(OutgoingMessage::new(header, Some(payload))) - } else { - let header = Header::new(header::Kind::Request, channel, id); - Ok(OutgoingMessage::new(header, None)) - } + Ok(chan.create_unchecked_request(channel, payload)) } /// Creates a new response to be sent. @@ -902,7 +916,7 @@ pub const fn payload_is_multi_frame(max_frame_size: MaxFrameSize, payload_len: u #[cfg(test)] mod tests { - use std::{collections::HashSet, ops::Not}; + use std::{collections::HashSet, fmt::Debug, ops::Not}; use bytes::{Buf, Bytes, BytesMut}; use proptest_attr_macro::proptest; @@ -1402,6 +1416,7 @@ mod tests { /// Creates a new request on peer `origin`, the sends it to the other peer. /// /// Returns the outcome of the other peer's reception. + #[track_caller] fn create_and_send_request( &mut self, origin: Peer, @@ -1416,10 +1431,33 @@ mod tests { self.recv_on(!origin, msg) } + /// Similar to `create_and_send_request`, but bypasses all checks. + /// + /// Allows for sending requests that are normally not allowed by the protocol API. + #[track_caller] + fn inject_and_send_request( + &mut self, + origin: Peer, + payload: Option, + ) -> Result { + let channel_id = self.common_channel; + let origin_channel = self + .get_peer_mut(origin) + .lookup_channel_mut(channel_id) + .expect("channel does not exist, why?"); + + // Create request, bypassing all checks usually performed by the protocol. + let msg = origin_channel.create_unchecked_request(channel_id, payload); + + // Send to peer and return outcome. + self.recv_on(!origin, msg) + } + /// Creates a new response on peer `origin`, the sends it to the other peer. /// /// Returns the outcome of the other peer's reception. If no response was scheduled for /// sending, returns `None`. + #[track_caller] fn create_and_send_response( &mut self, origin: Peer, @@ -1435,6 +1473,83 @@ mod tests { Some(self.recv_on(!origin, msg)) } + + /// Asserts the given completed read is a [`CompletedRead::NewRequest`] with the given ID + /// and payload. + /// + /// # Panics + /// + /// Will panic if the assertion fails. + #[track_caller] + fn assert_is_new_request( + &self, + expected_id: Id, + expected_payload: Option<&[u8]>, + completed_read: CompletedRead, + ) { + assert_matches::assert_matches!( + completed_read, + CompletedRead::NewRequest { + channel, + id, + payload + } => { + assert_eq!(channel, self.common_channel); + assert_eq!(id, expected_id); + assert_eq!(payload.as_deref(), expected_payload); + } + ); + } + + /// Asserts the given completed read is a [`CompletedRead::ReceivedResponse`] with the given + /// ID and payload. + /// + /// # Panics + /// + /// Will panic if the assertion fails. + #[track_caller] + fn assert_is_received_response( + &self, + expected_id: Id, + expected_payload: Option<&[u8]>, + completed_read: CompletedRead, + ) { + assert_matches::assert_matches!( + completed_read, + CompletedRead::ReceivedResponse { + channel, + id, + payload + } => { + assert_eq!(channel, self.common_channel); + assert_eq!(id, expected_id); + assert_eq!(payload.as_deref(), expected_payload); + } + ); + } + + /// Asserts given `Result` is of type `Err` and its message contains a specific header. + /// + /// # Panics + /// + /// Will panic if the assertion fails. + #[track_caller] + fn assert_is_error_message( + &self, + error_kind: ErrorKind, + id: Id, + result: Result, + ) { + match result { + Ok(v) => panic!("expected an error, got positive outcome instead: {:?}", v), + Err(err) => { + let header = err.header(); + assert_eq!(header.error_kind(), error_kind); + assert_eq!(header.id(), id); + assert_eq!(header.channel(), self.common_channel); + } + } + } } #[test] @@ -1445,43 +1560,38 @@ mod tests { let bob_completed_read = env .create_and_send_request(Alice, None) .expect("bob should accept request"); - - assert_matches::assert_matches!( - bob_completed_read, - CompletedRead::NewRequest { - channel, - id, - payload - } => { - assert_eq!(channel, env.common_channel); - assert_eq!(id, expected_id); - assert!(payload.is_none()); - } - ); + env.assert_is_new_request(expected_id, None, bob_completed_read); // Return a response. let alice_completed_read = env .create_and_send_response(Bob, expected_id, None) .expect("did not expect response to be dropped") .expect("should not fail to process response on alice"); - - assert_matches::assert_matches!( - alice_completed_read, - CompletedRead::ReceivedResponse { - channel, - id, - payload - } => { - assert_eq!(channel, env.common_channel); - assert_eq!(id, expected_id); - assert!(payload.is_none()); - } - ); + env.assert_is_received_response(expected_id, None, alice_completed_read); } #[test] fn env_req_no_payload_exceed_in_flight_limit() { - todo!(); + let mut env = TestingSetup::new(); + let bob_completed_read_1 = env + .create_and_send_request(Alice, None) + .expect("bob should accept request 1"); + env.assert_is_new_request(Id::new(1), None, bob_completed_read_1); + + let bob_completed_read_2 = env + .create_and_send_request(Alice, None) + .expect("bob should accept request 2"); + env.assert_is_new_request(Id::new(2), None, bob_completed_read_2); + + // We now need to bypass the local protocol checks to inject a malicious one. + + let local_err_result = env.inject_and_send_request(Alice, None); + + env.assert_is_error_message( + ErrorKind::RequestLimitExceeded, + Id::new(3), + local_err_result, + ); } #[test] From 687fdffd7c51ca0c4ee6cf2ef2d5ca70b410fc3b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 24 Aug 2023 14:59:42 +0200 Subject: [PATCH 634/735] juliet: Introduce varying payloads for a existing `protocol` level tests --- juliet/src/protocol.rs | 283 +++++++++++++++++++++++++---------------- 1 file changed, 175 insertions(+), 108 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 2ba246ffc8..cd823579ca 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -920,7 +920,8 @@ mod tests { use bytes::{Buf, Bytes, BytesMut}; use proptest_attr_macro::proptest; - use strum::IntoEnumIterator; + use proptest_derive::Arbitrary; + use strum::{EnumIter, IntoEnumIterator}; use crate::{ header::{ErrorKind, Header, Kind}, @@ -930,6 +931,67 @@ mod tests { use super::{err_msg, Channel, JulietProtocol, MaxFrameSize, OutgoingMessage, ProtocolBuilder}; + /// A generic payload that can be used in testing. + #[derive(Arbitrary, Clone, Copy, Debug, EnumIter)] + enum VaryingPayload { + /// No payload at all. + None, + /// A payload that fits into a single frame (using `TestingSetup`'s defined limits). + SingleFrame, + /// A payload that spans more than one frame. + MultiFrame, + } + + impl VaryingPayload { + /// Returns all valid payload sizes. + fn all_valid() -> impl Iterator { + VaryingPayload::iter() + } + + /// Returns whether the resulting payload would be `Option::None`. + fn is_none(self) -> bool { + match self { + VaryingPayload::None => true, + VaryingPayload::SingleFrame => false, + VaryingPayload::MultiFrame => false, + } + } + + /// Returns the kind header required if this payload is used in a request. + fn request_kind(self) -> Kind { + if self.is_none() { + Kind::Request + } else { + Kind::RequestPl + } + } + + /// Returns the kind header required if this payload is used in a response. + fn response_kind(self) -> Kind { + if self.is_none() { + Kind::Response + } else { + Kind::ResponsePl + } + } + + /// Produce the actual payload. + fn get(self) -> Option { + self.get_slice().map(Bytes::from_static) + } + + /// Produce the payloads underlying slice. + fn get_slice(self) -> Option<&'static [u8]> { + const LONG_PAYLOAD: &[u8] = + b"large payload large payload large payload large payload large payload large payload"; + match self { + VaryingPayload::None => None, + VaryingPayload::SingleFrame => Some(b"asdf"), + VaryingPayload::MultiFrame => Some(LONG_PAYLOAD), + } + } + } + #[test] fn max_frame_size_works() { let sz = MaxFrameSize::new(1234); @@ -1158,15 +1220,7 @@ mod tests { #[test] fn create_requests_with_correct_input_sets_state_accordingly() { - const LONG_PAYLOAD: &[u8] = - b"large payload large payload large payload large payload large payload large payload"; - - // Try different payload sizes (no payload, single frame payload, multiframe payload). - for payload in [ - None, - Some(Bytes::from_static(b"asdf")), - Some(Bytes::from_static(LONG_PAYLOAD)), - ] { + for payload in VaryingPayload::all_valid() { // Configure a protocol with payload, at least 10 bytes segment size. let mut protocol = ProtocolBuilder::<5>::with_default_channel_config( ChannelConfiguration::new() @@ -1182,18 +1236,13 @@ mod tests { assert!(protocol .allowed_to_send_request(channel) .expect("channel should exist")); - let expected_header_kind = if payload.is_none() { - Kind::Request - } else { - Kind::RequestPl - }; let req = protocol - .create_request(channel, payload) + .create_request(channel, payload.get()) .expect("should be able to create request"); assert_eq!(req.header().channel(), channel); - assert_eq!(req.header().kind(), expected_header_kind); + assert_eq!(req.header().kind(), payload.request_kind()); // We expect exactly one id in the outgoing set. assert_eq!( @@ -1217,11 +1266,11 @@ mod tests { .is_empty()); let other_req = protocol - .create_request(other_channel, None) + .create_request(other_channel, payload.get()) .expect("should be able to create request"); assert_eq!(other_req.header().channel(), other_channel); - assert_eq!(other_req.header().kind(), Kind::Request); + assert_eq!(other_req.header().kind(), payload.request_kind()); // We expect exactly one id in the outgoing set of each channel now. assert_eq!( @@ -1243,69 +1292,83 @@ mod tests { #[test] fn create_requests_with_invalid_inputs_fails() { - // Configure a protocol with payload, at least 10 bytes segment size. - let mut protocol = ProtocolBuilder::<2>::new().build(); + for payload in VaryingPayload::all_valid() { + // Configure a protocol with payload, at least 10 bytes segment size. + let mut protocol = ProtocolBuilder::<2>::with_default_channel_config( + ChannelConfiguration::new() + .with_max_request_payload_size(512) + .with_max_response_payload_size(512), + ) + .build(); - let channel = ChannelId::new(1); + let channel = ChannelId::new(1); - // Try an invalid channel, should result in an error. - assert!(matches!( - protocol.create_request(ChannelId::new(2), None), - Err(LocalProtocolViolation::InvalidChannel(ChannelId(2))) - )); + // Try an invalid channel, should result in an error. + assert!(matches!( + protocol.create_request(ChannelId::new(2), payload.get()), + Err(LocalProtocolViolation::InvalidChannel(ChannelId(2))) + )); - assert!(protocol - .allowed_to_send_request(channel) - .expect("channel should exist")); - let _ = protocol - .create_request(channel, None) - .expect("should be able to create request"); + assert!(protocol + .allowed_to_send_request(channel) + .expect("channel should exist")); + let _ = protocol + .create_request(channel, payload.get()) + .expect("should be able to create request"); - assert!(matches!( - protocol.create_request(channel, None), - Err(LocalProtocolViolation::WouldExceedRequestLimit) - )); + assert!(matches!( + protocol.create_request(channel, payload.get()), + Err(LocalProtocolViolation::WouldExceedRequestLimit) + )); + } } #[test] fn create_response_with_correct_input_clears_state_accordingly() { - let mut protocol = ProtocolBuilder::<4>::new().build(); + for payload in VaryingPayload::all_valid() { + let mut protocol = ProtocolBuilder::<4>::with_default_channel_config( + ChannelConfiguration::new() + .with_max_request_payload_size(512) + .with_max_response_payload_size(512), + ) + .build(); - let channel = ChannelId::new(3); + let channel = ChannelId::new(3); - // Inject a channel to have already received two requests. - let req_id = Id::new(9); - let leftover_id = Id::new(77); - protocol - .lookup_channel_mut(channel) - .expect("should find channel") - .incoming_requests - .extend([req_id, leftover_id]); - - // Responding to a non-existent request should not result in a message. - assert!(protocol - .create_response(channel, Id::new(12), None) - .expect("should allow attempting to respond to non-existent request") - .is_none()); - - // Actual response. - let resp = protocol - .create_response(channel, req_id, None) - .expect("should allow responding to request") - .expect("should actually answer request"); - - assert_eq!(resp.header().channel(), channel); - assert_eq!(resp.header().id(), req_id); - assert_eq!(resp.header().kind(), Kind::Response); - - // Outgoing set should be empty afterwards. - assert_eq!( + // Inject a channel to have already received two requests. + let req_id = Id::new(9); + let leftover_id = Id::new(77); protocol - .lookup_channel(channel) + .lookup_channel_mut(channel) .expect("should find channel") - .incoming_requests, - [leftover_id].into() - ); + .incoming_requests + .extend([req_id, leftover_id]); + + // Responding to a non-existent request should not result in a message. + assert!(protocol + .create_response(channel, Id::new(12), payload.get()) + .expect("should allow attempting to respond to non-existent request") + .is_none()); + + // Actual response. + let resp = protocol + .create_response(channel, req_id, payload.get()) + .expect("should allow responding to request") + .expect("should actually answer request"); + + assert_eq!(resp.header().channel(), channel); + assert_eq!(resp.header().id(), req_id); + assert_eq!(resp.header().kind(), payload.response_kind()); + + // Outgoing set should be empty afterwards. + assert_eq!( + protocol + .lookup_channel(channel) + .expect("should find channel") + .incoming_requests, + [leftover_id].into() + ); + } } #[test] @@ -1368,8 +1431,8 @@ mod tests { let pb = ProtocolBuilder::with_default_channel_config( ChannelConfiguration::new() .with_request_limit(2) - .with_max_request_payload_size(40) - .with_max_response_payload_size(40), + .with_max_request_payload_size(512) + .with_max_response_payload_size(512), ) .max_frame_size(max_frame_size.get()); let common_channel = ChannelId(2); @@ -1553,45 +1616,49 @@ mod tests { } #[test] - fn use_case_req_no_payload_ok() { - let mut env = TestingSetup::new(); - - let expected_id = Id::new(1); - let bob_completed_read = env - .create_and_send_request(Alice, None) - .expect("bob should accept request"); - env.assert_is_new_request(expected_id, None, bob_completed_read); - - // Return a response. - let alice_completed_read = env - .create_and_send_response(Bob, expected_id, None) - .expect("did not expect response to be dropped") - .expect("should not fail to process response on alice"); - env.assert_is_received_response(expected_id, None, alice_completed_read); + fn use_case_req_ok() { + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + + let expected_id = Id::new(1); + let bob_completed_read = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request"); + env.assert_is_new_request(expected_id, payload.get_slice(), bob_completed_read); + + // Return a response. + let alice_completed_read = env + .create_and_send_response(Bob, expected_id, payload.get()) + .expect("did not expect response to be dropped") + .expect("should not fail to process response on alice"); + env.assert_is_received_response(expected_id, payload.get_slice(), alice_completed_read); + } } #[test] - fn env_req_no_payload_exceed_in_flight_limit() { - let mut env = TestingSetup::new(); - let bob_completed_read_1 = env - .create_and_send_request(Alice, None) - .expect("bob should accept request 1"); - env.assert_is_new_request(Id::new(1), None, bob_completed_read_1); - - let bob_completed_read_2 = env - .create_and_send_request(Alice, None) - .expect("bob should accept request 2"); - env.assert_is_new_request(Id::new(2), None, bob_completed_read_2); - - // We now need to bypass the local protocol checks to inject a malicious one. - - let local_err_result = env.inject_and_send_request(Alice, None); - - env.assert_is_error_message( - ErrorKind::RequestLimitExceeded, - Id::new(3), - local_err_result, - ); + fn env_req_exceed_in_flight_limit() { + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + let bob_completed_read_1 = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request 1"); + env.assert_is_new_request(Id::new(1), payload.get_slice(), bob_completed_read_1); + + let bob_completed_read_2 = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request 2"); + env.assert_is_new_request(Id::new(2), payload.get_slice(), bob_completed_read_2); + + // We now need to bypass the local protocol checks to inject a malicious one. + + let local_err_result = env.inject_and_send_request(Alice, payload.get()); + + env.assert_is_error_message( + ErrorKind::RequestLimitExceeded, + Id::new(3), + local_err_result, + ); + } } #[test] From b83ef84825c026064ee75b0777921d30c8eb66f0 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 24 Aug 2023 17:33:29 +0200 Subject: [PATCH 635/735] juliet: Test for duplicate request handling and request lize limits --- juliet/src/protocol.rs | 50 +++++++++++++++++++++++++++++++++++++----- 1 file changed, 45 insertions(+), 5 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index cd823579ca..e32ffe4c53 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -940,12 +940,19 @@ mod tests { SingleFrame, /// A payload that spans more than one frame. MultiFrame, + /// A payload that exceeds the request size limit. + TooLarge, } impl VaryingPayload { /// Returns all valid payload sizes. fn all_valid() -> impl Iterator { - VaryingPayload::iter() + [ + VaryingPayload::None, + VaryingPayload::SingleFrame, + VaryingPayload::MultiFrame, + ] + .into_iter() } /// Returns whether the resulting payload would be `Option::None`. @@ -954,6 +961,7 @@ mod tests { VaryingPayload::None => true, VaryingPayload::SingleFrame => false, VaryingPayload::MultiFrame => false, + VaryingPayload::TooLarge => false, } } @@ -984,10 +992,13 @@ mod tests { fn get_slice(self) -> Option<&'static [u8]> { const LONG_PAYLOAD: &[u8] = b"large payload large payload large payload large payload large payload large payload"; + const OVERLY_LONG_PAYLOAD: &[u8] = b"abcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefgh"; + match self { VaryingPayload::None => None, VaryingPayload::SingleFrame => Some(b"asdf"), VaryingPayload::MultiFrame => Some(LONG_PAYLOAD), + VaryingPayload::TooLarge => Some(OVERLY_LONG_PAYLOAD), } } } @@ -1388,6 +1399,7 @@ mod tests { } /// A simplified setup for testing back and forth between two peers. + #[derive(Debug)] struct TestingSetup { /// Alice's protocol state. alice: JulietProtocol<4>, @@ -1662,13 +1674,41 @@ mod tests { } #[test] - fn env_req_no_payload_exceed_req_size_limit() { - todo!(); + fn env_req_exceed_req_size_limit() { + let payload = VaryingPayload::TooLarge; + + let mut env = TestingSetup::new(); + let bob_result = env.inject_and_send_request(Alice, payload.get()); + + env.assert_is_error_message(ErrorKind::RequestTooLarge, Id::new(1), bob_result); } #[test] - fn env_req_no_payload_duplicate_request() { - todo!(); + fn env_req_duplicate_request() { + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + + let bob_completed_read_1 = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request 1"); + env.assert_is_new_request(Id::new(1), payload.get_slice(), bob_completed_read_1); + + // Send a second request with the same ID. For this, we manipulate Alice's internal + // counter and state. + let alice_channel = env + .alice + .lookup_channel_mut(env.common_channel) + .expect("should have channel"); + alice_channel.prev_request_id -= 1; + alice_channel.outgoing_requests.clear(); + + let second_send_result = env.inject_and_send_request(Alice, payload.get()); + env.assert_is_error_message( + ErrorKind::DuplicateRequest, + Id::new(1), + second_send_result, + ); + } } #[test] From cf976532564074940fcd17f8fdc150a3dbfbed7e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 25 Aug 2023 13:26:25 +0200 Subject: [PATCH 636/735] juliet: Ensure payload sizes relative to `TestingSetup` are of appropriate lengths --- Cargo.lock | 1 + Cargo.toml | 2 +- juliet/Cargo.toml | 1 + juliet/src/protocol.rs | 29 ++++++++++++++++++++++------- 4 files changed, 25 insertions(+), 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index a799af9b20..897943f7cf 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3200,6 +3200,7 @@ dependencies = [ "proptest-attr-macro", "proptest-derive", "rand 0.8.5", + "static_assertions", "strum 0.25.0", "thiserror", "tokio", diff --git a/Cargo.toml b/Cargo.toml index fc4c9627bd..f76c26cc5e 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -46,4 +46,4 @@ inherits = "release" debug = true [patch.crates-io] -datasize = { git = "https://github.com/casperlabs/datasize-rs", rev = "2b980c05af5553522dde5f2751e5a0fd3347d881" } \ No newline at end of file +datasize = { git = "https://github.com/casperlabs/datasize-rs", rev = "2b980c05af5553522dde5f2751e5a0fd3347d881" } diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 1660917862..4e282e0f73 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -33,6 +33,7 @@ rand = "0.8.5" tracing = "0.1.37" tracing-subscriber = { version = "0.3.17", features = [ "env-filter" ] } assert_matches = "1.5.0" +static_assertions = "1.1.0" [[example]] name = "fizzbuzz" diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index e32ffe4c53..67d6200361 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -921,11 +921,13 @@ mod tests { use bytes::{Buf, Bytes, BytesMut}; use proptest_attr_macro::proptest; use proptest_derive::Arbitrary; + use static_assertions::const_assert; use strum::{EnumIter, IntoEnumIterator}; use crate::{ header::{ErrorKind, Header, Kind}, protocol::{payload_is_multi_frame, CompletedRead, LocalProtocolViolation}, + varint::Varint32, ChannelConfiguration, ChannelId, Id, Outcome, }; @@ -990,13 +992,22 @@ mod tests { /// Produce the payloads underlying slice. fn get_slice(self) -> Option<&'static [u8]> { + const SHORT_PAYLOAD: &[u8] = b"asdf"; + const_assert!( + SHORT_PAYLOAD.len() + <= TestingSetup::MAX_FRAME_SIZE as usize - Header::SIZE - Varint32::MAX_LEN + ); + const LONG_PAYLOAD: &[u8] = b"large payload large payload large payload large payload large payload large payload"; + const_assert!(LONG_PAYLOAD.len() > TestingSetup::MAX_FRAME_SIZE as usize); + const OVERLY_LONG_PAYLOAD: &[u8] = b"abcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefgh"; + const_assert!(OVERLY_LONG_PAYLOAD.len() > TestingSetup::MAX_PAYLOAD_SIZE as usize); match self { VaryingPayload::None => None, - VaryingPayload::SingleFrame => Some(b"asdf"), + VaryingPayload::SingleFrame => Some(SHORT_PAYLOAD), VaryingPayload::MultiFrame => Some(LONG_PAYLOAD), VaryingPayload::TooLarge => Some(OVERLY_LONG_PAYLOAD), } @@ -1402,9 +1413,9 @@ mod tests { #[derive(Debug)] struct TestingSetup { /// Alice's protocol state. - alice: JulietProtocol<4>, + alice: JulietProtocol<{ Self::NUM_CHANNELS as usize }>, /// Bob's protocol state. - bob: JulietProtocol<4>, + bob: JulietProtocol<{ Self::NUM_CHANNELS as usize }>, /// The channel communication is sent across for these tests. common_channel: ChannelId, /// Maximum frame size in test environment. @@ -1437,17 +1448,21 @@ mod tests { use Peer::{Alice, Bob}; impl TestingSetup { + const MAX_PAYLOAD_SIZE: u32 = 512; + const MAX_FRAME_SIZE: u32 = 20; + const NUM_CHANNELS: u8 = 4; + /// Instantiates a new testing setup. fn new() -> Self { - let max_frame_size = MaxFrameSize::new(20); + let max_frame_size = MaxFrameSize::new(Self::MAX_FRAME_SIZE); let pb = ProtocolBuilder::with_default_channel_config( ChannelConfiguration::new() .with_request_limit(2) - .with_max_request_payload_size(512) - .with_max_response_payload_size(512), + .with_max_request_payload_size(Self::MAX_PAYLOAD_SIZE) + .with_max_response_payload_size(Self::MAX_PAYLOAD_SIZE), ) .max_frame_size(max_frame_size.get()); - let common_channel = ChannelId(2); + let common_channel = ChannelId(Self::NUM_CHANNELS - 1); let alice = pb.build(); let bob = pb.build(); From ec6dc258304da6e5007780d0502eb32117de7485 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 25 Aug 2023 14:30:16 +0200 Subject: [PATCH 637/735] juliet: Partially complete cancellation tests --- juliet/src/protocol.rs | 195 +++++++++++++++++++++++++++++++++++++---- 1 file changed, 179 insertions(+), 16 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 67d6200361..e6eab47962 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -324,6 +324,44 @@ impl Channel { } } +/// Creates a new response without checking or altering channel states. +/// +/// Low-level function exposed for testing. Does not affect the tracking of IDs, thus can be used to +/// send duplicate or ficticious responses. +#[inline(always)] +fn create_unchecked_response( + channel: ChannelId, + id: Id, + payload: Option, +) -> OutgoingMessage { + if let Some(payload) = payload { + let header = Header::new(header::Kind::ResponsePl, channel, id); + OutgoingMessage::new(header, Some(payload)) + } else { + let header = Header::new(header::Kind::Response, channel, id); + OutgoingMessage::new(header, None) + } +} + +/// Creates a request cancellation without checks. +/// +/// Low-level function exposed for testing. Does not verify that the given request exists or has not +/// been cancelled before. +#[inline(always)] +fn create_unchecked_request_cancellation(channel: ChannelId, id: Id) -> OutgoingMessage { + let header = Header::new(header::Kind::CancelReq, channel, id); + OutgoingMessage::new(header, None) +} + +/// Creates a response cancellation without checks. +/// +/// Low-level function exposed for testing. Does not verify that the given request has been received +/// or a response sent already. +fn create_unchecked_response_cancellation(channel: ChannelId, id: Id) -> OutgoingMessage { + let header = Header::new(header::Kind::CancelResp, channel, id); + OutgoingMessage::new(header, None) +} + /// A successful read from the peer. #[must_use] #[derive(Debug, Eq, PartialEq)] @@ -544,13 +582,7 @@ impl JulietProtocol { } } - if let Some(payload) = payload { - let header = Header::new(header::Kind::ResponsePl, channel, id); - Ok(Some(OutgoingMessage::new(header, Some(payload)))) - } else { - let header = Header::new(header::Kind::Response, channel, id); - Ok(Some(OutgoingMessage::new(header, None))) - } + Ok(Some(create_unchecked_response(channel, id, payload))) } /// Creates a cancellation for an outgoing request. @@ -579,8 +611,7 @@ impl JulietProtocol { return Ok(None); } - let header = Header::new(header::Kind::CancelReq, channel, id); - Ok(Some(OutgoingMessage::new(header, None))) + Ok(Some(create_unchecked_request_cancellation(channel, id))) } /// Creates a cancellation of an incoming request. @@ -605,8 +636,7 @@ impl JulietProtocol { return Ok(None); } - let header = Header::new(header::Kind::CancelResp, channel, id); - Ok(Some(OutgoingMessage::new(header, None))) + Ok(Some(create_unchecked_response_cancellation(channel, id))) } /// Creates an error message with type [`ErrorKind::Other`]. @@ -926,7 +956,10 @@ mod tests { use crate::{ header::{ErrorKind, Header, Kind}, - protocol::{payload_is_multi_frame, CompletedRead, LocalProtocolViolation}, + protocol::{ + create_unchecked_response, payload_is_multi_frame, CompletedRead, + LocalProtocolViolation, + }, varint::Varint32, ChannelConfiguration, ChannelId, Id, Outcome, }; @@ -1543,6 +1576,24 @@ mod tests { self.recv_on(!origin, msg) } + /// Creates a new request cancellation on peer `origin`, the sends it to the other peer. + /// + /// Returns the outcome of the other peer's reception. + #[track_caller] + fn cancel_and_send_request( + &mut self, + origin: Peer, + id: Id, + ) -> Option> { + let channel = self.common_channel; + let msg = self + .get_peer_mut(origin) + .cancel_request(channel, id) + .expect("should be able to create request cancellation")?; + + Some(self.recv_on(!origin, msg)) + } + /// Creates a new response on peer `origin`, the sends it to the other peer. /// /// Returns the outcome of the other peer's reception. If no response was scheduled for @@ -1564,6 +1615,24 @@ mod tests { Some(self.recv_on(!origin, msg)) } + /// Similar to `create_and_send_response`, but bypasses all checks. + /// + /// Allows for sending requests that are normally not allowed by the protocol API. + #[track_caller] + fn inject_and_send_response( + &mut self, + origin: Peer, + id: Id, + payload: Option, + ) -> Result { + let channel_id = self.common_channel; + + let msg = create_unchecked_response(channel_id, id, payload); + + // Send to peer and return outcome. + self.recv_on(!origin, msg) + } + /// Asserts the given completed read is a [`CompletedRead::NewRequest`] with the given ID /// and payload. /// @@ -1591,6 +1660,26 @@ mod tests { ); } + /// Asserts the given completed read is a [`CompletedRead::RequestCancellation`] with the + /// given ID. + /// + /// # Panics + /// + /// Will panic if the assertion fails. + #[track_caller] + fn assert_is_request_cancellation(&self, expected_id: Id, completed_read: CompletedRead) { + assert_matches::assert_matches!( + completed_read, + CompletedRead::RequestCancellation { + channel, + id, + } => { + assert_eq!(channel, self.common_channel); + assert_eq!(id, expected_id); + } + ); + } + /// Asserts the given completed read is a [`CompletedRead::ReceivedResponse`] with the given /// ID and payload. /// @@ -1662,6 +1751,47 @@ mod tests { } } + #[test] + fn use_case_cancel_req() { + // A request followed by a response can take multiple orders, all of which are valid: + + // Alice:Req, Alice:Cancel, Bob:Response + // Alice:Req, Alice:Cancel, Bob:Bob:Cancel + // Alice:Req, Bob:Response, Alice:Cancel + // Alice:Req, Bob:Cancel, Alice:Cancel + + #[derive(Copy, Clone, Debug)] + enum Step { + AliceReq, + AliceCancel, + BobRespond, + BobCancel, + } + + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + + let expected_id = Id::new(1); + + // Alice sends a request first. + let bob_completed_read = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request"); + env.assert_is_new_request(expected_id, payload.get_slice(), bob_completed_read); + + // She follows it up with a request cancellation immediately. + let bob_completed_read_2 = env + .cancel_and_send_request(Alice, expected_id) + .expect("should produce cancellation for unanswered response") + .expect("should be able to send request cancellation"); + env.assert_is_request_cancellation(expected_id, bob_completed_read_2); + + // TODO: Send response (should be swallowed). + + // TODO: Cancellation swallowing if response sent. + } + } + #[test] fn env_req_exceed_in_flight_limit() { for payload in VaryingPayload::all_valid() { @@ -1727,13 +1857,44 @@ mod tests { } #[test] - fn env_req_no_payload_response_for_ficticious_request() { - todo!(); + fn env_req_response_for_ficticious_request() { + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + + let bob_completed_read_1 = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request 1"); + env.assert_is_new_request(Id::new(1), payload.get_slice(), bob_completed_read_1); + + // Send a response with a wrong ID. + let second_send_result = env.inject_and_send_response(Bob, Id::new(123), payload.get()); + env.assert_is_error_message( + ErrorKind::FictitiousRequest, + Id::new(123), + second_send_result, + ); + } } #[test] - fn env_req_no_payload_cancellation_for_ficticious_request() { - todo!(); + fn env_req_cancellation_for_ficticious_request() { + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + + let bob_completed_read_1 = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request 1"); + env.assert_is_new_request(Id::new(1), payload.get_slice(), bob_completed_read_1); + + todo!("cancel here"); + + // let second_send_result = env.inject_and_send_response(Bob, Id::new(123), payload.get()); + // env.assert_is_error_message( + // ErrorKind::FictitiousCancel, + // Id::new(123), + // second_send_result, + // ); + } } #[test] @@ -1776,6 +1937,8 @@ mod tests { todo!("cover all cases without payload + segment/size violations"); } + // TODO: Ensure one request or cancellation per request + #[test] fn response_with_no_payload_is_cleared_from_buffer() { // This test is fairly specific from a concrete bug. In general, buffer advancement is From 3ddcb96d4d55062b41096784fbedb507ed162518 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 25 Aug 2023 14:35:32 +0200 Subject: [PATCH 638/735] juliet: Fix bug where cancellations were not properly removed from incoming buffer --- juliet/src/protocol.rs | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index e6eab47962..5a3fa62952 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -886,9 +886,10 @@ impl JulietProtocol { return err_msg(header, ErrorKind::CancellationLimitExceeded); } channel.cancellation_allowance -= 1; + buffer.advance(Header::SIZE); - // TODO: What to do with partially received multi-frame request? - // TODO: Actually remove from incoming set. + // TODO: What to do with partially received multi-frame request? (needs tests) + // TODO: Actually remove from incoming set. (needs tests) #[cfg(feature = "tracing")] { From e82df4f070597796b55835bb710ce20de88d2daf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 25 Aug 2023 16:09:38 +0200 Subject: [PATCH 639/735] juliet: Fix bug of not clearing buffer for received response cancellations as well --- juliet/src/protocol.rs | 170 +++++++++++++++++++++++++++++------------ 1 file changed, 121 insertions(+), 49 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 5a3fa62952..d7cebfad6c 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -604,10 +604,10 @@ impl JulietProtocol { ) -> Result, LocalProtocolViolation> { let chan = self.lookup_channel_mut(channel)?; - if !chan.outgoing_requests.remove(&id) { - // The request has been cancelled, no need to send a response. This also prevents us - // from ever violating the cancellation limit by accident, if all requests are sent - // properly. + if !chan.outgoing_requests.contains(&id) { + // The request has received a response already, no need to cancel. Note that merely + // sending the cancellation is not enough here, we still expect either cancellation or + // response from the peer. return Ok(None); } @@ -889,7 +889,6 @@ impl JulietProtocol { buffer.advance(Header::SIZE); // TODO: What to do with partially received multi-frame request? (needs tests) - // TODO: Actually remove from incoming set. (needs tests) #[cfg(feature = "tracing")] { @@ -897,14 +896,28 @@ impl JulietProtocol { trace!(%header, "received request cancellation"); } - return Success(CompletedRead::RequestCancellation { - channel: header.channel(), - id: header.id(), - }); + // Check incoming request. If it was already cancelled or answered, ignore, as + // it is valid to send wrong cancellation up to the cancellation allowance. + // + // An incoming request may have also already been answered, which is also + // reason to ignore it. + // + // However, we cannot remove it here, as we need to track whether we have sent + // something back. + if !channel.incoming_requests.contains(&header.id()) { + // Already answered, ignore the late cancellation. + } else { + return Success(CompletedRead::RequestCancellation { + channel: header.channel(), + id: header.id(), + }); + } } Kind::CancelResp => { if channel.outgoing_requests.remove(&header.id()) { log_frame!(header); + buffer.advance(Header::SIZE); + return Success(CompletedRead::ResponseCancellation { channel: header.channel(), id: header.id(), @@ -1581,7 +1594,7 @@ mod tests { /// /// Returns the outcome of the other peer's reception. #[track_caller] - fn cancel_and_send_request( + fn cancel_request_and_send( &mut self, origin: Peer, id: Id, @@ -1595,6 +1608,24 @@ mod tests { Some(self.recv_on(!origin, msg)) } + /// Creates a new response cancellation on peer `origin`, the sends it to the other peer. + /// + /// Returns the outcome of the other peer's reception. + #[track_caller] + fn cancel_response_and_send( + &mut self, + origin: Peer, + id: Id, + ) -> Option> { + let channel = self.common_channel; + let msg = self + .get_peer_mut(origin) + .cancel_response(channel, id) + .expect("should be able to create response cancellation")?; + + Some(self.recv_on(!origin, msg)) + } + /// Creates a new response on peer `origin`, the sends it to the other peer. /// /// Returns the outcome of the other peer's reception. If no response was scheduled for @@ -1708,6 +1739,26 @@ mod tests { ); } + /// Asserts the given completed read is a [`CompletedRead::ResponseCancellation`] with the + /// given ID. + /// + /// # Panics + /// + /// Will panic if the assertion fails. + #[track_caller] + fn assert_is_response_cancellation(&self, expected_id: Id, completed_read: CompletedRead) { + assert_matches::assert_matches!( + completed_read, + CompletedRead::ResponseCancellation { + channel, + id, + } => { + assert_eq!(channel, self.common_channel); + assert_eq!(id, expected_id); + } + ); + } + /// Asserts given `Result` is of type `Err` and its message contains a specific header. /// /// # Panics @@ -1752,44 +1803,72 @@ mod tests { } } - #[test] - fn use_case_cancel_req() { - // A request followed by a response can take multiple orders, all of which are valid: - - // Alice:Req, Alice:Cancel, Bob:Response - // Alice:Req, Alice:Cancel, Bob:Bob:Cancel - // Alice:Req, Bob:Response, Alice:Cancel - // Alice:Req, Bob:Cancel, Alice:Cancel - - #[derive(Copy, Clone, Debug)] - enum Step { - AliceReq, - AliceCancel, - BobRespond, - BobCancel, - } + // A request followed by a response can take multiple orders, all of which are valid: - for payload in VaryingPayload::all_valid() { - let mut env = TestingSetup::new(); + // Alice:Request, Alice:Cancel, Bob:Respond (cancellation ignored) + // Alice:Request, Alice:Cancel, Bob:Cancel (cancellation honored or Bob cancelled) + // Alice:Request, Bob:Respond, Alice:Cancel (cancellation not in time) + // Alice:Request, Bob:Cancel, Alice:Cancel (cancellation acknowledged) - let expected_id = Id::new(1); + // Alice's cancellation can also be on the wire at the same time as Bob's responses. + // Alice:Request, Bob:Respond, Alice:CancelSim (cancellation arrives after response) + // Alice:Request, Bob:Cancel, Alice:CancelSim (cancellation arrives after cancellation) - // Alice sends a request first. - let bob_completed_read = env - .create_and_send_request(Alice, payload.get()) - .expect("bob should accept request"); - env.assert_is_new_request(expected_id, payload.get_slice(), bob_completed_read); + /// Sets up the environment with Alice's initial request. + fn env_with_initial_areq(payload: VaryingPayload) -> (TestingSetup, Id) { + let mut env = TestingSetup::new(); - // She follows it up with a request cancellation immediately. - let bob_completed_read_2 = env - .cancel_and_send_request(Alice, expected_id) - .expect("should produce cancellation for unanswered response") - .expect("should be able to send request cancellation"); - env.assert_is_request_cancellation(expected_id, bob_completed_read_2); + let expected_id = Id::new(1); + + // Alice sends a request first. + let bob_initial_completed_read = env + .create_and_send_request(Alice, payload.get()) + .expect("bob should accept request"); + env.assert_is_new_request(expected_id, payload.get_slice(), bob_initial_completed_read); - // TODO: Send response (should be swallowed). + (env, expected_id) + } - // TODO: Cancellation swallowing if response sent. + #[test] + fn use_case_areq_acnc_bresp() { + // Alice:Request, Alice:Cancel, Bob:Respond + for payload in VaryingPayload::all_valid() { + let (mut env, id) = env_with_initial_areq(payload); + let bob_read_of_cancel = env + .cancel_request_and_send(Alice, id) + .expect("alice should send cancellation") + .expect("bob should produce cancellation"); + env.assert_is_request_cancellation(id, bob_read_of_cancel); + + // Bob's application doesn't notice and sends the response anyway. It should at arrive + // at Alice's to confirm the cancellation. + let alices_read = env + .create_and_send_response(Bob, id, payload.get()) + .expect("bob must send the response") + .expect("bob should be ablet to create the response"); + + env.assert_is_received_response(id, payload.get_slice(), alices_read); + } + } + + #[test] + fn use_case_areq_acnc_bcnc() { + // Alice:Request, Alice:Cancel, Bob:Respond + for payload in VaryingPayload::all_valid() { + let (mut env, id) = env_with_initial_areq(payload); + let bob_read_of_cancel = env + .cancel_request_and_send(Alice, id) + .expect("alice should send cancellation") + .expect("bob should produce cancellation"); + env.assert_is_request_cancellation(id, bob_read_of_cancel); + + // Bob's application answers with a response cancellation. + let alices_read = env + .cancel_response_and_send(Bob, id) + .expect("bob must send the response") + .expect("bob should be ablet to create the response"); + + env.assert_is_response_cancellation(id, alices_read); } } @@ -1888,13 +1967,6 @@ mod tests { env.assert_is_new_request(Id::new(1), payload.get_slice(), bob_completed_read_1); todo!("cancel here"); - - // let second_send_result = env.inject_and_send_response(Bob, Id::new(123), payload.get()); - // env.assert_is_error_message( - // ErrorKind::FictitiousCancel, - // Id::new(123), - // second_send_result, - // ); } } From 07858e64c4a86e6024e5c13383d8ba8d91e5b101 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 25 Aug 2023 16:31:40 +0200 Subject: [PATCH 640/735] juliet: Finish first set of cancellation tests --- juliet/src/protocol.rs | 143 ++++++++++++++++++++++++++++++++--------- 1 file changed, 111 insertions(+), 32 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index d7cebfad6c..73bbe07b88 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -962,6 +962,7 @@ pub const fn payload_is_multi_frame(max_frame_size: MaxFrameSize, payload_len: u mod tests { use std::{collections::HashSet, fmt::Debug, ops::Not}; + use assert_matches::assert_matches; use bytes::{Buf, Bytes, BytesMut}; use proptest_attr_macro::proptest; use proptest_derive::Arbitrary; @@ -978,7 +979,10 @@ mod tests { ChannelConfiguration, ChannelId, Id, Outcome, }; - use super::{err_msg, Channel, JulietProtocol, MaxFrameSize, OutgoingMessage, ProtocolBuilder}; + use super::{ + create_unchecked_request_cancellation, err_msg, Channel, JulietProtocol, MaxFrameSize, + OutgoingMessage, ProtocolBuilder, + }; /// A generic payload that can be used in testing. #[derive(Arbitrary, Clone, Copy, Debug, EnumIter)] @@ -1550,6 +1554,20 @@ mod tests { }) } + /// Take `msg` and send it to peer `dest`. + /// + /// Will check that the message is fully processed and removed, and a new header read + /// expected next. + fn expect_consumes(&mut self, dest: Peer, msg: OutgoingMessage) { + let mut msg_bytes = BytesMut::from(msg.to_bytes(self.max_frame_size).as_ref()); + + let outcome = self.get_peer_mut(dest).process_incoming(&mut msg_bytes); + + assert!(msg_bytes.is_empty(), "client should have consumed input"); + + assert_matches!(outcome, Outcome::Incomplete(n) if n.get() == 4); + } + /// Creates a new request on peer `origin`, the sends it to the other peer. /// /// Returns the outcome of the other peer's reception. @@ -1678,7 +1696,7 @@ mod tests { expected_payload: Option<&[u8]>, completed_read: CompletedRead, ) { - assert_matches::assert_matches!( + assert_matches!( completed_read, CompletedRead::NewRequest { channel, @@ -1700,7 +1718,7 @@ mod tests { /// Will panic if the assertion fails. #[track_caller] fn assert_is_request_cancellation(&self, expected_id: Id, completed_read: CompletedRead) { - assert_matches::assert_matches!( + assert_matches!( completed_read, CompletedRead::RequestCancellation { channel, @@ -1725,7 +1743,7 @@ mod tests { expected_payload: Option<&[u8]>, completed_read: CompletedRead, ) { - assert_matches::assert_matches!( + assert_matches!( completed_read, CompletedRead::ReceivedResponse { channel, @@ -1747,7 +1765,7 @@ mod tests { /// Will panic if the assertion fails. #[track_caller] fn assert_is_response_cancellation(&self, expected_id: Id, completed_read: CompletedRead) { - assert_matches::assert_matches!( + assert_matches!( completed_read, CompletedRead::ResponseCancellation { channel, @@ -1771,15 +1789,11 @@ mod tests { id: Id, result: Result, ) { - match result { - Ok(v) => panic!("expected an error, got positive outcome instead: {:?}", v), - Err(err) => { - let header = err.header(); - assert_eq!(header.error_kind(), error_kind); - assert_eq!(header.id(), id); - assert_eq!(header.channel(), self.common_channel); - } - } + let err = result.expect_err("expected an error, got positive outcome instead"); + let header = err.header(); + assert_eq!(header.error_kind(), error_kind); + assert_eq!(header.id(), id); + assert_eq!(header.channel(), self.common_channel); } } @@ -1830,7 +1844,7 @@ mod tests { } #[test] - fn use_case_areq_acnc_bresp() { + fn use_case_areq_acnc_brsp() { // Alice:Request, Alice:Cancel, Bob:Respond for payload in VaryingPayload::all_valid() { let (mut env, id) = env_with_initial_areq(payload); @@ -1856,19 +1870,97 @@ mod tests { // Alice:Request, Alice:Cancel, Bob:Respond for payload in VaryingPayload::all_valid() { let (mut env, id) = env_with_initial_areq(payload); + + // Alice directly follows with a cancellation. let bob_read_of_cancel = env .cancel_request_and_send(Alice, id) .expect("alice should send cancellation") .expect("bob should produce cancellation"); env.assert_is_request_cancellation(id, bob_read_of_cancel); + // Bob's application confirms with a response cancellation. + let alices_read = env + .cancel_response_and_send(Bob, id) + .expect("bob must send the response") + .expect("bob should be ablet to create the response"); + env.assert_is_response_cancellation(id, alices_read); + } + } + + #[test] + fn use_case_areq_brsp_acnc() { + // Alice:Request, Bob:Respond, Alice:Cancel + for payload in VaryingPayload::all_valid() { + let (mut env, id) = env_with_initial_areq(payload); + + // Bob's application responds. + let alices_read = env + .create_and_send_response(Bob, id, payload.get()) + .expect("bob must send the response") + .expect("bob should be ablet to create the response"); + env.assert_is_received_response(id, payload.get_slice(), alices_read); + + // Alice's app attempts to send a cancellation, which should be swallowed. + assert!(env.cancel_request_and_send(Alice, id).is_none()); + } + } + + #[test] + fn use_case_areq_bcnc_acnc() { + // Alice:Request, Bob:Respond, Alice:Cancel + for payload in VaryingPayload::all_valid() { + let (mut env, id) = env_with_initial_areq(payload); + // Bob's application answers with a response cancellation. + let alices_read = env + .cancel_response_and_send(Bob, id) + .expect("bob must send the response") + .expect("bob should be ablet to create the response"); + env.assert_is_response_cancellation(id, alices_read); + + // Alice's app attempts to send a cancellation, which should be swallowed. + assert!(env.cancel_request_and_send(Alice, id).is_none()); + } + } + + #[test] + fn use_case_areq_brsp_acncsim() { + // Alice:Request, Bob:Respond, Alice:CancelSim + for payload in VaryingPayload::all_valid() { + let (mut env, id) = env_with_initial_areq(payload); + + // Bob's application responds. + let alices_read = env + .create_and_send_response(Bob, id, payload.get()) + .expect("bob must send the response") + .expect("bob should be ablet to create the response"); + env.assert_is_received_response(id, payload.get_slice(), alices_read); + + // Alice's app attempts to send a cancellation due to a race condition. + env.expect_consumes( + Bob, + create_unchecked_request_cancellation(env.common_channel, id), + ); + } + } + + #[test] + fn use_case_areq_bcnc_acncsim() { + // Alice:Request, Bob:Respond, Alice:CancelSim + for payload in VaryingPayload::all_valid() { + let (mut env, id) = env_with_initial_areq(payload); + + // Bob's application cancels. let alices_read = env .cancel_response_and_send(Bob, id) .expect("bob must send the response") .expect("bob should be ablet to create the response"); env.assert_is_response_cancellation(id, alices_read); + env.expect_consumes( + Bob, + create_unchecked_request_cancellation(env.common_channel, id), + ); } } @@ -1966,20 +2058,12 @@ mod tests { .expect("bob should accept request 1"); env.assert_is_new_request(Id::new(1), payload.get_slice(), bob_completed_read_1); - todo!("cancel here"); + // Have bob send a response for a request that was never made. + let alice_result = env.inject_and_send_response(Bob, Id::new(123), payload.get()); + env.assert_is_error_message(ErrorKind::FictitiousRequest, Id::new(123), alice_result); } } - #[test] - fn env_req_no_payload_request_cancellation_ok() { - todo!(); - } - - #[test] - fn env_req_no_payload_response_cancellation_ok() { - todo!(); - } - #[test] fn env_req_no_payload_response_size_limit_exceeded() { todo!(); @@ -2005,12 +2089,7 @@ mod tests { todo!(); } - #[test] - fn env_req_with_payloads() { - todo!("cover all cases without payload + segment/size violations"); - } - - // TODO: Ensure one request or cancellation per request + // TODO: Ensure one request or cancellation per request is enforced. #[test] fn response_with_no_payload_is_cleared_from_buffer() { From 369ce86163ad79de8b31022a59b7ab53ced13b7b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 28 Aug 2023 13:36:21 +0200 Subject: [PATCH 641/735] juliet: Complete first set of protocol tests --- juliet/src/protocol.rs | 140 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 131 insertions(+), 9 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 73bbe07b88..72f0b3e50c 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -2065,31 +2065,153 @@ mod tests { } #[test] - fn env_req_no_payload_response_size_limit_exceeded() { - todo!(); + fn env_req_size_limit_exceeded() { + let mut env = TestingSetup::new(); + + let payload = VaryingPayload::TooLarge; + + // Alice should not allow too-large requests to be sent. + let violation = env + .alice + .create_request(env.common_channel, payload.get()) + .expect_err("should not be able to create too large request"); + + assert_matches!(violation, LocalProtocolViolation::PayloadExceedsLimit); + + // If we force the issue, Bob must refuse it instead. + let bob_result = env.inject_and_send_request(Alice, payload.get()); + env.assert_is_error_message(ErrorKind::RequestTooLarge, Id::new(1), bob_result); + } + + #[test] + fn env_response_size_limit_exceeded() { + let (mut env, id) = env_with_initial_areq(VaryingPayload::None); + let payload = VaryingPayload::TooLarge; + + // Bob should not allow too-large responses to be sent. + let violation = env + .bob + .create_request(env.common_channel, payload.get()) + .expect_err("should not be able to create too large response"); + assert_matches!(violation, LocalProtocolViolation::PayloadExceedsLimit); + + // If we force the issue, Alice must refuse it. + let alice_result = env.inject_and_send_response(Bob, id, payload.get()); + env.assert_is_error_message(ErrorKind::ResponseTooLarge, Id::new(1), alice_result); } #[test] - fn env_req_no_payload_response_cancellation_limit_exceeded() { - todo!(); + fn env_req_response_cancellation_limit_exceeded() { + for payload in VaryingPayload::all_valid() { + for num_requests in 0..=2 { + let mut env = TestingSetup::new(); + + // Have Alice make requests in order to fill-up the in-flights. + for i in 0..num_requests { + let expected_id = Id::new(i + 1); + let bobs_read = env + .create_and_send_request(Alice, payload.get()) + .expect("should accept request"); + env.assert_is_new_request(expected_id, payload.get_slice(), bobs_read); + } + + // Now send the corresponding amount of cancellations. + for i in 0..num_requests { + let id = Id::new(i + 1); + + let msg = create_unchecked_request_cancellation(env.common_channel, id); + + let bobs_read = env.recv_on(Bob, msg).expect("cancellation should not fail"); + env.assert_is_request_cancellation(id, bobs_read); + } + + let id = Id::new(num_requests + 1); + // Finally another cancellation should trigger an error. + let msg = create_unchecked_request_cancellation(env.common_channel, id); + + let bobs_result = env.recv_on(Bob, msg); + env.assert_is_error_message(ErrorKind::CancellationLimitExceeded, id, bobs_result); + } + } } #[test] fn env_max_frame_size_exceeded() { - todo!(); + // Note: An actual `MaxFrameSizeExceeded` can never occur due to how this library is + // implemented. This is the closest situation that can occur. + + let mut env = TestingSetup::new(); + + let payload = VaryingPayload::TooLarge; + let id = Id::new(1); + + // We have to craft the message by hand to exceed the frame size. + let msg = OutgoingMessage::new( + Header::new(Kind::RequestPl, env.common_channel, id), + payload.get(), + ); + let mut encoded = BytesMut::from( + msg.to_bytes(MaxFrameSize::new( + 2 * payload + .get() + .expect("TooLarge payload should have body") + .len() as u32, + )) + .as_ref(), + ); + let violation = env.bob.process_incoming(&mut encoded).to_result(); + + env.assert_is_error_message(ErrorKind::RequestTooLarge, id, violation); } #[test] fn env_invalid_header() { - todo!(); + for payload in VaryingPayload::all_valid() { + let mut env = TestingSetup::new(); + + let id = Id::new(1); + + // We have to craft the message by hand to exceed the frame size. + let msg = OutgoingMessage::new( + Header::new(Kind::RequestPl, env.common_channel, id), + payload.get(), + ); + let mut encoded = BytesMut::from(msg.to_bytes(env.max_frame_size).as_ref()); + + // Patch the header so that it is broken. + encoded[0] = 0b0000_1111; // Kind: Normal, all data bits set. + + let violation = env.bob.process_incoming(&mut encoded).to_result(); + + env.assert_is_error_message(ErrorKind::InvalidHeader, id, violation); + } } #[test] fn env_bad_varint() { - todo!(); - } + let payload = VaryingPayload::MultiFrame; + let mut env = TestingSetup::new(); + + let id = Id::new(1); + + // We have to craft the message by hand to exceed the frame size. + let msg = OutgoingMessage::new( + Header::new(Kind::RequestPl, env.common_channel, id), + payload.get(), + ); + let mut encoded = BytesMut::from(msg.to_bytes(env.max_frame_size).as_ref()); - // TODO: Ensure one request or cancellation per request is enforced. + // Invalidate the varint. + encoded[4] = 0xFF; + encoded[5] = 0xFF; + encoded[6] = 0xFF; + encoded[7] = 0xFF; + encoded[8] = 0xFF; + + let violation = env.bob.process_incoming(&mut encoded).to_result(); + + env.assert_is_error_message(ErrorKind::BadVarInt, id, violation); + } #[test] fn response_with_no_payload_is_cleared_from_buffer() { From d7dbacc96add0d6ab8042fbc1d921ee6788ae479 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 28 Aug 2023 13:38:42 +0200 Subject: [PATCH 642/735] juliet: Update expectations/assertions on invalid header test --- juliet/src/protocol.rs | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 72f0b3e50c..4d4c716898 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -2169,7 +2169,7 @@ mod tests { for payload in VaryingPayload::all_valid() { let mut env = TestingSetup::new(); - let id = Id::new(1); + let id = Id::new(123); // We have to craft the message by hand to exceed the frame size. let msg = OutgoingMessage::new( @@ -2181,9 +2181,19 @@ mod tests { // Patch the header so that it is broken. encoded[0] = 0b0000_1111; // Kind: Normal, all data bits set. - let violation = env.bob.process_incoming(&mut encoded).to_result(); + let violation = env + .bob + .process_incoming(&mut encoded) + .to_result() + .expect_err("expected invalid header to produce an error"); + + // We have to manually assert the error, since invalid header errors are sent with an ID + // of 0 and on channel 0. - env.assert_is_error_message(ErrorKind::InvalidHeader, id, violation); + let header = violation.header(); + assert_eq!(header.error_kind(), ErrorKind::InvalidHeader); + assert_eq!(header.id(), Id::new(0)); + assert_eq!(header.channel(), ChannelId::new(0)); } } From 60215194032c1ed0c6b98e9dc8bdb42f924a6c9c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 28 Aug 2023 14:40:55 +0200 Subject: [PATCH 643/735] juliet: Add single response/cancellation-per-request test --- juliet/src/protocol.rs | 70 ++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 68 insertions(+), 2 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 4d4c716898..ea47fd1518 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -980,8 +980,8 @@ mod tests { }; use super::{ - create_unchecked_request_cancellation, err_msg, Channel, JulietProtocol, MaxFrameSize, - OutgoingMessage, ProtocolBuilder, + create_unchecked_request_cancellation, create_unchecked_response_cancellation, err_msg, + Channel, JulietProtocol, MaxFrameSize, OutgoingMessage, ProtocolBuilder, }; /// A generic payload that can be used in testing. @@ -1683,6 +1683,23 @@ mod tests { self.recv_on(!origin, msg) } + /// Similar to `create_and_send_response_cancellation`, but bypasses all checks. + /// + /// Allows for sending request cancellations that are not allowed by the protocol API. + #[track_caller] + fn inject_and_send_response_cancellation( + &mut self, + origin: Peer, + id: Id, + ) -> Result { + let channel_id = self.common_channel; + + let msg = create_unchecked_response_cancellation(channel_id, id); + + // Send to peer and return outcome. + self.recv_on(!origin, msg) + } + /// Asserts the given completed read is a [`CompletedRead::NewRequest`] with the given ID /// and payload. /// @@ -2267,4 +2284,53 @@ mod tests { assert_eq!(response_raw.remaining(), 0); } + + #[test] + fn one_respone_or_cancellation_per_request() { + for payload in VaryingPayload::all_valid() { + // Case 1: Response, response. + let (mut env, id) = env_with_initial_areq(payload); + let completed_read = env + .create_and_send_response(Bob, id, payload.get()) + .expect("should send response") + .expect("should accept response"); + env.assert_is_received_response(id, payload.get_slice(), completed_read); + + let alice_result = env.inject_and_send_response(Bob, id, payload.get()); + env.assert_is_error_message(ErrorKind::FictitiousRequest, id, alice_result); + + // Case 2: Response, cancel. + let (mut env, id) = env_with_initial_areq(payload); + let completed_read = env + .create_and_send_response(Bob, id, payload.get()) + .expect("should send response") + .expect("should accept response"); + env.assert_is_received_response(id, payload.get_slice(), completed_read); + + let alice_result = env.inject_and_send_response_cancellation(Bob, id); + env.assert_is_error_message(ErrorKind::FictitiousCancel, id, alice_result); + + // Case 3: Cancel, response. + let (mut env, id) = env_with_initial_areq(payload); + let completed_read = env + .cancel_response_and_send(Bob, id) + .expect("should send response cancellation") + .expect("should accept response cancellation"); + env.assert_is_response_cancellation(id, completed_read); + + let alice_result = env.inject_and_send_response(Bob, id, payload.get()); + env.assert_is_error_message(ErrorKind::FictitiousRequest, id, alice_result); + + // Case4: Cancel, cancel. + let (mut env, id) = env_with_initial_areq(payload); + let completed_read = env + .create_and_send_response(Bob, id, payload.get()) + .expect("should send response") + .expect("should accept response"); + env.assert_is_received_response(id, payload.get_slice(), completed_read); + + let alice_result = env.inject_and_send_response(Bob, id, payload.get()); + env.assert_is_error_message(ErrorKind::FictitiousRequest, id, alice_result); + } + } } From e617638340ee567e1ab0d85e001f03e78a30d18a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 28 Aug 2023 15:03:46 +0200 Subject: [PATCH 644/735] juliet: Test trickling reception is checked for every case of `recv_on` --- juliet/src/protocol.rs | 60 +++++++++++++++++++++++++++---- juliet/src/protocol/multiframe.rs | 1 + 2 files changed, 55 insertions(+), 6 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index ea47fd1518..014b17d5de 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -133,6 +133,7 @@ impl Default for MaxFrameSize { /// Their return types are usually converted into frames via [`OutgoingMessage::frames()`] and need /// to be sent to the peer. #[derive(Debug)] +#[cfg_attr(test, derive(Clone))] pub struct JulietProtocol { /// Bi-directional channels. channels: [Channel; N], @@ -217,6 +218,7 @@ impl ProtocolBuilder { /// Used internally by the protocol to keep track. This data structure closely tracks the /// information specified in the juliet RFC. #[derive(Debug)] +#[cfg_attr(test, derive(Clone))] struct Channel { /// A set of request IDs from requests received that have not been answered with a response or /// cancellation yet. @@ -1461,7 +1463,7 @@ mod tests { } /// A simplified setup for testing back and forth between two peers. - #[derive(Debug)] + #[derive(Clone, Debug)] struct TestingSetup { /// Alice's protocol state. alice: JulietProtocol<{ Self::NUM_CHANNELS as usize }>, @@ -1543,15 +1545,61 @@ mod tests { dest: Peer, msg: OutgoingMessage, ) -> Result { - let mut msg_bytes = BytesMut::from(msg.to_bytes(self.max_frame_size).as_ref()); + let msg_bytes = msg.to_bytes(self.max_frame_size); + let mut msg_bytes_buffer = BytesMut::from(msg_bytes.as_ref()); + + let orig_self = self.clone(); - self.get_peer_mut(dest) - .process_incoming(&mut msg_bytes) + let expected = self + .get_peer_mut(dest) + .process_incoming(&mut msg_bytes_buffer) .to_result() .map(|v| { - assert!(msg_bytes.is_empty(), "client should have consumed input"); + assert!( + msg_bytes_buffer.is_empty(), + "client should have consumed input" + ); v - }) + }); + + // Test parsing of partially received data. + // + // This loop runs through almost every sensibly conceivable size of chunks in which data + // can be transmitted and simulates a trickling reception. The original state of the + // receiving facilities is cloned first, and the outcome of the trickle reception is + // compared against the reference of receiving in one go from earlier (`expected`). + for transmission_chunk_size in 1..=(self.max_frame_size.get() as usize * 2 + 1) { + let mut unsent = msg_bytes.clone(); + let mut buffer = BytesMut::new(); + let mut this = orig_self.clone(); + + let result = loop { + // Put more data from unsent into the buffer. + let chunk = unsent.split_to(transmission_chunk_size.min(unsent.remaining())); + buffer.extend(chunk); + + let outcome = this.get_peer_mut(dest).process_incoming(&mut buffer); + + if matches!(outcome, Outcome::Incomplete(_)) { + if unsent.is_empty() { + panic!( + "got incompletion before completion while attempting to send \ + message piecewise in {} byte chunks", + transmission_chunk_size + ); + } + + // Continue reading until complete. + continue; + } + + break outcome.to_result(); + }; + + assert_eq!(result, expected, "should not see difference between trickling reception and single send reception"); + } + + expected } /// Take `msg` and send it to peer `dest`. diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 542d04c863..1ea194774a 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -27,6 +27,7 @@ use super::{outgoing_message::OutgoingMessage, MaxFrameSize}; /// in the same way it would if they were on the same channel. The caller thus must ensure to create /// an instance of `MultiframeReceiver` for every active channel. #[derive(Debug, Default)] +#[cfg_attr(test, derive(Clone))] pub(super) enum MultiframeReceiver { /// The channel is ready to start receiving a new multi-frame message. #[default] From 483b25a8fe578a3571767908988b17989d888818 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 28 Aug 2023 15:06:44 +0200 Subject: [PATCH 645/735] juliet: Fixed clippy lints in `protocol` tests --- juliet/src/protocol.rs | 4 ++-- juliet/src/rpc.rs | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 014b17d5de..0ba0e44641 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -2322,9 +2322,9 @@ mod tests { assert_eq!( outcome, CompletedRead::ReceivedResponse { - channel: channel, + channel, /// The ID of the request received. - id: id, + id, /// The response payload. payload: None, } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 70970492ba..4ab7ee6209 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -636,6 +636,7 @@ mod tests { use super::{JulietRpcClient, JulietRpcServer}; + #[allow(clippy::type_complexity)] // We'll allow it in testing. fn setup_peers( builder: RpcBuilder, ) -> ( From 69467a19fadef9393e00de41f1d51e6ae176ee01 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 28 Aug 2023 18:36:56 +0200 Subject: [PATCH 646/735] Commit temporary workaround for validator broadcasts --- node/src/components/network.rs | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 3c514617ff..1597536ab7 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -423,7 +423,8 @@ where for peer_id in self.outgoing_manager.connected_peers() { total_outgoing_manager_connected_peers += 1; - if !self.validator_matrix.has_era(&era_id) + if true + || !self.validator_matrix.has_era(&era_id) || self.outgoing_limiter.is_validator_in_era(era_id, &peer_id) { total_connected_validators_in_era += 1; From 36fdbe9a940175531c3bda7e177bd3bfe2bdbd00 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 12:40:02 +0200 Subject: [PATCH 647/735] Remove outbound (and thus the last remaining) limiter --- node/src/components/network.rs | 31 +- node/src/components/network/insights.rs | 48 +-- node/src/components/network/limiter.rs | 552 ------------------------ node/src/components/network/metrics.rs | 1 + 4 files changed, 8 insertions(+), 624 deletions(-) delete mode 100644 node/src/components/network/limiter.rs diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 1597536ab7..644c15fd09 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -34,7 +34,6 @@ mod handshake; mod health; mod identity; mod insights; -mod limiter; mod message; mod metrics; mod outgoing; @@ -90,7 +89,6 @@ use self::{ error::{ConnectionError, MessageReceiverError}, event::{IncomingConnection, OutgoingConnection}, health::{HealthConfig, TaggedTimestamp}, - limiter::Limiter, message::NodeKeyPair, metrics::Metrics, outgoing::{DialOutcome, DialRequest, OutgoingConfig, OutgoingManager}, @@ -210,10 +208,6 @@ where #[data_size(skip)] net_metrics: Arc, - /// The outgoing bandwidth limiter. - #[data_size(skip)] - outgoing_limiter: Limiter, - /// The era that is considered the active era by the network component. active_era: EraId, @@ -247,15 +241,6 @@ where ) -> Result, Error> { let net_metrics = Arc::new(Metrics::new(registry)?); - let outgoing_limiter = Limiter::new( - cfg.max_outgoing_byte_rate_non_validators, - net_metrics - .accumulated_outgoing_limiter_delay - .inner() - .clone(), - validator_matrix.clone(), - ); - let outgoing_manager = OutgoingManager::with_metrics( OutgoingConfig { retry_attempts: RECONNECTION_ATTEMPTS, @@ -309,7 +294,6 @@ where incoming_validator_status: Default::default(), connection_symmetries: HashMap::new(), net_metrics, - outgoing_limiter, // We start with an empty set of validators for era 0 and expect to be updated. active_era: EraId::new(0), state: ComponentState::Uninitialized, @@ -423,10 +407,7 @@ where for peer_id in self.outgoing_manager.connected_peers() { total_outgoing_manager_connected_peers += 1; - if true - || !self.validator_matrix.has_era(&era_id) - || self.outgoing_limiter.is_validator_in_era(era_id, &peer_id) - { + if true { total_connected_validators_in_era += 1; self.send_message(peer_id, msg.clone(), None) } @@ -446,12 +427,14 @@ where &self, rng: &mut NodeRng, msg: Arc>, - gossip_target: GossipTarget, + _gossip_target: GossipTarget, count: usize, exclude: HashSet, ) -> HashSet { - let is_validator_in_era = - |era: EraId, peer_id: &NodeId| self.outgoing_limiter.is_validator_in_era(era, peer_id); + // TODO: Restore sampling functionality. We currently override with `GossipTarget::All`. + let is_validator_in_era = |_, _: &_| true; + let gossip_target = GossipTarget::All; + let peer_ids = choose_gossip_peers( rng, gossip_target, @@ -976,8 +959,6 @@ where .or_default() .unmark_outgoing(Instant::now()); - self.outgoing_limiter.remove_connected_validator(&peer_id); - self.process_dial_requests(requests) } diff --git a/node/src/components/network/insights.rs b/node/src/components/network/insights.rs index f8594b67c4..fd82335b40 100644 --- a/node/src/components/network/insights.rs +++ b/node/src/components/network/insights.rs @@ -6,7 +6,7 @@ //! insights should neither be abused just because they are available. use std::{ - collections::{BTreeSet, HashSet}, + collections::BTreeSet, fmt::{self, Debug, Display, Formatter}, net::SocketAddr, time::{Duration, SystemTime}, @@ -38,12 +38,6 @@ pub(crate) struct NetworkInsights { node_key_pair: Option, /// The active era as seen by the networking component. net_active_era: EraId, - /// The list of node IDs that are being preferred due to being active validators. - privileged_active_outgoing_nodes: Option>, - /// The list of node IDs that are being preferred due to being upcoming validators. - privileged_upcoming_outgoing_nodes: Option>, - /// The amount of bandwidth allowance currently buffered, ready to be spent. - unspent_bandwidth_allowance_bytes: Option, /// Map of outgoing connections, along with their current state. outgoing_connections: Vec<(SocketAddr, OutgoingInsight)>, /// Map of incoming connections. @@ -267,15 +261,6 @@ impl NetworkInsights { where P: Payload, { - // Since we are at the top level of the component, we gain access to inner values of the - // respective structs. We abuse this to gain debugging insights. Note: If limiters are no - // longer a `trait`, the trait methods can be removed as well in favor of direct access. - let (privileged_active_outgoing_nodes, privileged_upcoming_outgoing_nodes) = net - .outgoing_limiter - .debug_inspect_validators(&net.active_era) - .map(|(a, b)| (Some(a), Some(b))) - .unwrap_or_default(); - let anchor = TimeAnchor::now(); let outgoing_connections = net @@ -314,11 +299,6 @@ impl NetworkInsights { .node_key_pair() .map(|kp| kp.public_key().clone()), net_active_era: net.active_era, - privileged_active_outgoing_nodes, - privileged_upcoming_outgoing_nodes, - unspent_bandwidth_allowance_bytes: net - .outgoing_limiter - .debug_inspect_unspent_allowance(), outgoing_connections, connection_symmetries, } @@ -340,32 +320,6 @@ impl Display for NetworkInsights { self.our_id, OptDisplay::new(self.public_addr, "no listen addr") )?; - writeln!( - f, - "active era: {} unspent_bandwidth_allowance_bytes: {}", - self.net_active_era, - OptDisplay::new(self.unspent_bandwidth_allowance_bytes, "inactive"), - )?; - let active = self - .privileged_active_outgoing_nodes - .as_ref() - .map(HashSet::iter) - .map(DisplayIter::new); - writeln!( - f, - "privileged active: {}", - OptDisplay::new(active, "inactive") - )?; - let upcoming = self - .privileged_upcoming_outgoing_nodes - .as_ref() - .map(HashSet::iter) - .map(DisplayIter::new); - writeln!( - f, - "privileged upcoming: {}", - OptDisplay::new(upcoming, "inactive") - )?; f.write_str("outgoing connections:\n")?; writeln!(f, "address uf state")?; diff --git a/node/src/components/network/limiter.rs b/node/src/components/network/limiter.rs deleted file mode 100644 index af81dab99d..0000000000 --- a/node/src/components/network/limiter.rs +++ /dev/null @@ -1,552 +0,0 @@ -//! Resource limiters -//! -//! Resource limiters restrict the usable amount of a resource through slowing down the request rate -//! by making each user request an allowance first. - -use std::{ - collections::{HashMap, HashSet}, - sync::{Arc, RwLock}, - time::{Duration, Instant}, -}; - -use prometheus::Counter; -use tokio::{runtime::Handle, sync::Mutex, task}; -use tracing::{error, trace, warn}; - -use casper_types::{EraId, PublicKey}; - -use crate::types::{NodeId, ValidatorMatrix}; - -/// Amount of resource allowed to buffer in `Limiter`. -const STORED_BUFFER_SECS: Duration = Duration::from_secs(2); - -/// A limiter dividing resources into two classes based on their validator status. -/// -/// Any consumer of a specific resource is expected to call `create_handle` for every peer and use -/// the returned handle to request a access to a resource. -/// -/// Imposes a limit on non-validator resources while not limiting active validator resources at all. -#[derive(Debug)] -pub(super) struct Limiter { - /// Shared data across all handles. - data: Arc, - /// Set of active and upcoming validators shared across all handles. - validator_matrix: ValidatorMatrix, -} - -impl Limiter { - /// Creates a new class based limiter. - /// - /// Starts the background worker task as well. - pub(super) fn new( - resources_per_second: u32, - wait_time_sec: Counter, - validator_matrix: ValidatorMatrix, - ) -> Self { - Limiter { - data: Arc::new(LimiterData::new(resources_per_second, wait_time_sec)), - validator_matrix, - } - } - - /// Create a handle for a connection using the given peer and optional consensus key. - pub(super) fn create_handle( - &self, - peer_id: NodeId, - consensus_key: Option, - ) -> LimiterHandle { - if let Some(public_key) = consensus_key.as_ref().cloned() { - match self.data.connected_validators.write() { - Ok(mut connected_validators) => { - let _ = connected_validators.insert(peer_id, public_key); - } - Err(_) => { - error!( - "could not update connected validator data set of limiter, lock poisoned" - ); - } - } - } - LimiterHandle { - data: self.data.clone(), - validator_matrix: self.validator_matrix.clone(), - consumer_id: ConsumerId { - _peer_id: peer_id, - consensus_key, - }, - } - } - - pub(super) fn remove_connected_validator(&self, peer_id: &NodeId) { - match self.data.connected_validators.write() { - Ok(mut connected_validators) => { - let _ = connected_validators.remove(peer_id); - } - Err(_) => { - error!( - "could not remove connected validator from data set of limiter, lock poisoned" - ); - } - } - } - - pub(super) fn is_validator_in_era(&self, era: EraId, peer_id: &NodeId) -> bool { - let public_key = match self.data.connected_validators.read() { - Ok(connected_validators) => match connected_validators.get(peer_id) { - None => return false, - Some(public_key) => public_key.clone(), - }, - Err(_) => { - error!("could not read from connected_validators of limiter, lock poisoned"); - return false; - } - }; - - match self.validator_matrix.is_validator_in_era(era, &public_key) { - None => { - warn!(%era, "missing validator weights for given era"); - false - } - Some(is_validator) => is_validator, - } - } - - pub(super) fn debug_inspect_unspent_allowance(&self) -> Option { - Some(task::block_in_place(move || { - Handle::current().block_on(async move { self.data.resources.lock().await.available }) - })) - } - - pub(super) fn debug_inspect_validators( - &self, - current_era: &EraId, - ) -> Option<(HashSet, HashSet)> { - Some(( - self.validator_keys_for_era(current_era), - self.validator_keys_for_era(¤t_era.successor()), - )) - } - - fn validator_keys_for_era(&self, era: &EraId) -> HashSet { - self.validator_matrix - .validator_weights(*era) - .map(|validator_weights| validator_weights.validator_public_keys().cloned().collect()) - .unwrap_or_default() - } -} - -/// The limiter's state. -#[derive(Debug)] -struct LimiterData { - /// Number of resource units to allow for non-validators per second. - resources_per_second: u32, - /// A mapping from node IDs to public keys of validators to which we have an outgoing - /// connection. - connected_validators: RwLock>, - /// Information about available resources. - resources: Mutex, - /// Total time spent waiting. - wait_time_sec: Counter, -} - -/// Resource data. -#[derive(Debug)] -struct ResourceData { - /// How many resource units are buffered. - /// - /// May go negative in the case of a deficit. - available: i64, - /// Last time resource data was refilled. - last_refill: Instant, -} - -impl LimiterData { - /// Creates a new set of class based limiter data. - /// - /// Initial resources will be initialized to 0, with the last refill set to the current time. - fn new(resources_per_second: u32, wait_time_sec: Counter) -> Self { - LimiterData { - resources_per_second, - connected_validators: Default::default(), - resources: Mutex::new(ResourceData { - available: 0, - last_refill: Instant::now(), - }), - wait_time_sec, - } - } -} - -/// Peer class for the `Limiter`. -enum PeerClass { - /// A validator. - Validator, - /// Unclassified/low-priority peer. - NonValidator, -} - -/// A per-peer handle for `Limiter`. -#[derive(Clone, Debug)] -pub(super) struct LimiterHandle { - /// Data shared between handles and limiter. - data: Arc, - /// Set of active and upcoming validators. - validator_matrix: ValidatorMatrix, - /// Consumer ID for the sender holding this handle. - consumer_id: ConsumerId, -} - -impl LimiterHandle { - /// Waits until the requester is allocated `amount` additional resources. - pub(super) async fn request_allowance(&self, amount: u32) { - // As a first step, determine the peer class by checking if our id is in the validator set. - - // TODO FIXME: Re-add support for limiting? - return; - // if self.validator_matrix.is_empty() { - // // It is likely that we have not been initialized, thus no node is getting the - // // reserved resources. In this case, do not limit at all. - // trace!("empty set of validators, not limiting resources at all"); - - // return; - // } - - let peer_class = if let Some(ref public_key) = self.consumer_id.consensus_key { - if self - .validator_matrix - .is_active_or_upcoming_validator(public_key) - { - PeerClass::Validator - } else { - PeerClass::NonValidator - } - } else { - PeerClass::NonValidator - }; - - match peer_class { - PeerClass::Validator => { - // No limit imposed on validators. - } - PeerClass::NonValidator => { - if self.data.resources_per_second == 0 { - return; - } - - let max_stored_resource = ((self.data.resources_per_second as f64) - * STORED_BUFFER_SECS.as_secs_f64()) - as u32; - - // We are a low-priority sender. Obtain a lock on the resources and wait an - // appropriate amount of time to fill them up. - { - let mut resources = self.data.resources.lock().await; - - while resources.available < 0 { - // Determine time delta since last refill. - let now = Instant::now(); - let elapsed = now - resources.last_refill; - resources.last_refill = now; - - // Add appropriate amount of resources, capped at `max_stored_bytes`. We - // are still maintaining the lock here to avoid issues with other - // low-priority requestors. - resources.available += ((elapsed.as_nanos() - * self.data.resources_per_second as u128) - / 1_000_000_000) as i64; - resources.available = resources.available.min(max_stored_resource as i64); - - // If we do not have enough resources available, sleep until we do. - if resources.available < 0 { - let estimated_time_remaining = Duration::from_millis( - (-resources.available) as u64 * 1000 - / self.data.resources_per_second as u64, - ); - - // Note: This sleep call is the reason we are using a tokio mutex - // instead of a regular `std` one, as we are holding it across the - // await point here. - tokio::time::sleep(estimated_time_remaining).await; - self.data - .wait_time_sec - .inc_by(estimated_time_remaining.as_secs_f64()); - } - } - - // Subtract the amount. If available resources go negative as a result, it - // is the next sender's problem. - resources.available -= amount as i64; - } - } - } - } -} - -/// An identity for a consumer. -#[derive(Clone, Debug)] -struct ConsumerId { - /// The peer's ID. - _peer_id: NodeId, - /// The remote node's public consensus key. - consensus_key: Option, -} - -#[cfg(test)] -mod tests { - use std::{sync::Arc, time::Duration}; - - use casper_types::{EraId, SecretKey}; - use num_rational::Ratio; - use prometheus::Counter; - use tokio::time::Instant; - - use super::{Limiter, NodeId, PublicKey}; - use crate::{testing::init_logging, types::ValidatorMatrix}; - - /// Something that happens almost immediately, with some allowance for test jitter. - const SHORT_TIME: Duration = Duration::from_millis(250); - - /// Creates a new counter for testing. - fn new_wait_time_sec() -> Counter { - Counter::new("test_time_waiting", "wait time counter used in tests") - .expect("could not create new counter") - } - - #[tokio::test] - async fn unlimited_limiter_is_unlimited() { - let mut rng = crate::new_rng(); - - // We insert one unrelated active validator to avoid triggering the automatic disabling of - // the limiter in case there are no active validators. - let validator_matrix = - ValidatorMatrix::new_with_validator(Arc::new(SecretKey::random(&mut rng))); - let limiter = Limiter::new(0, new_wait_time_sec(), validator_matrix); - - // Try with non-validators or unknown nodes. - let handles = vec![ - limiter.create_handle(NodeId::random(&mut rng), Some(PublicKey::random(&mut rng))), - limiter.create_handle(NodeId::random(&mut rng), None), - ]; - - for handle in handles { - let start = Instant::now(); - handle.request_allowance(0).await; - handle.request_allowance(u32::MAX).await; - handle.request_allowance(1).await; - assert!(start.elapsed() < SHORT_TIME); - } - } - - #[tokio::test] - async fn active_validator_is_unlimited() { - let mut rng = crate::new_rng(); - - let secret_key = SecretKey::random(&mut rng); - let consensus_key = PublicKey::from(&secret_key); - let validator_matrix = ValidatorMatrix::new_with_validator(Arc::new(secret_key)); - let limiter = Limiter::new(1_000, new_wait_time_sec(), validator_matrix); - - let handle = limiter.create_handle(NodeId::random(&mut rng), Some(consensus_key)); - - let start = Instant::now(); - handle.request_allowance(0).await; - handle.request_allowance(u32::MAX).await; - handle.request_allowance(1).await; - assert!(start.elapsed() < SHORT_TIME); - } - - #[tokio::test] - async fn inactive_validator_limited() { - let rng = &mut crate::new_rng(); - - // We insert one unrelated active validator to avoid triggering the automatic disabling of - // the limiter in case there are no active validators. - let validator_matrix = - ValidatorMatrix::new_with_validator(Arc::new(SecretKey::random(rng))); - let peers = [ - (NodeId::random(rng), Some(PublicKey::random(rng))), - (NodeId::random(rng), None), - ]; - - let limiter = Limiter::new(1_000, new_wait_time_sec(), validator_matrix); - - for (peer, maybe_public_key) in peers { - let start = Instant::now(); - let handle = limiter.create_handle(peer, maybe_public_key); - - // Send 9_0001 bytes, we expect this to take roughly 15 seconds. - handle.request_allowance(1000).await; - handle.request_allowance(1000).await; - handle.request_allowance(1000).await; - handle.request_allowance(2000).await; - handle.request_allowance(4000).await; - handle.request_allowance(1).await; - let elapsed = start.elapsed(); - - assert!( - elapsed >= Duration::from_secs(9), - "{}s", - elapsed.as_secs_f64() - ); - assert!( - elapsed <= Duration::from_secs(10), - "{}s", - elapsed.as_secs_f64() - ); - } - } - - #[tokio::test] - async fn nonvalidators_parallel_limited() { - let mut rng = crate::new_rng(); - - let wait_metric = new_wait_time_sec(); - - // We insert one unrelated active validator to avoid triggering the automatic disabling of - // the limiter in case there are no active validators. - let validator_matrix = - ValidatorMatrix::new_with_validator(Arc::new(SecretKey::random(&mut rng))); - let limiter = Limiter::new(1_000, wait_metric.clone(), validator_matrix); - - let start = Instant::now(); - - // Parallel test, 5 non-validators sharing 1000 bytes per second. Each sends 1001 bytes, so - // total time is expected to be just over 5 seconds. - let join_handles = (0..5) - .map(|_| { - limiter.create_handle(NodeId::random(&mut rng), Some(PublicKey::random(&mut rng))) - }) - .map(|handle| { - tokio::spawn(async move { - handle.request_allowance(500).await; - handle.request_allowance(150).await; - handle.request_allowance(350).await; - handle.request_allowance(1).await; - }) - }); - - for join_handle in join_handles { - join_handle.await.expect("could not join task"); - } - - let elapsed = start.elapsed(); - assert!(elapsed >= Duration::from_secs(5)); - assert!(elapsed <= Duration::from_secs(6)); - - // Ensure metrics recorded the correct number of seconds. - assert!( - wait_metric.get() <= 6.0, - "wait metric is too large: {}", - wait_metric.get() - ); - - // Note: The limiting will not apply to all data, so it should be slightly below 5 seconds. - assert!( - wait_metric.get() >= 4.5, - "wait metric is too small: {}", - wait_metric.get() - ); - } - - #[tokio::test] - async fn inactive_validators_unlimited_when_no_validators_known() { - init_logging(); - - let mut rng = crate::new_rng(); - - let secret_key = SecretKey::random(&mut rng); - let consensus_key = PublicKey::from(&secret_key); - let wait_metric = new_wait_time_sec(); - let limiter = Limiter::new( - 1_000, - wait_metric.clone(), - ValidatorMatrix::new( - Ratio::new(1, 3), - None, - EraId::from(0), - Arc::new(secret_key), - consensus_key.clone(), - 2, - ), - ); - - // Try with non-validators or unknown nodes. - let handles = vec![ - limiter.create_handle(NodeId::random(&mut rng), Some(PublicKey::random(&mut rng))), - limiter.create_handle(NodeId::random(&mut rng), None), - ]; - - for handle in handles { - let start = Instant::now(); - - // Send 9_0001 bytes, should now finish instantly. - handle.request_allowance(1000).await; - handle.request_allowance(1000).await; - handle.request_allowance(1000).await; - handle.request_allowance(2000).await; - handle.request_allowance(4000).await; - handle.request_allowance(1).await; - assert!(start.elapsed() < SHORT_TIME); - } - - // There should have been no time spent waiting. - assert!( - wait_metric.get() < SHORT_TIME.as_secs_f64(), - "wait_metric is too large: {}", - wait_metric.get() - ); - } - - /// Regression test for #2929. - #[tokio::test] - async fn throttling_of_non_validators_does_not_affect_validators() { - init_logging(); - - let mut rng = crate::new_rng(); - - let secret_key = SecretKey::random(&mut rng); - let consensus_key = PublicKey::from(&secret_key); - let validator_matrix = ValidatorMatrix::new_with_validator(Arc::new(secret_key)); - let limiter = Limiter::new(1_000, new_wait_time_sec(), validator_matrix); - - let non_validator_handle = limiter.create_handle(NodeId::random(&mut rng), None); - let validator_handle = limiter.create_handle(NodeId::random(&mut rng), Some(consensus_key)); - - // We request a large resource at once using a non-validator handle. At the same time, - // validator requests should be still served, even while waiting for the long-delayed - // request still blocking. - let start = Instant::now(); - let background_nv_request = tokio::spawn(async move { - non_validator_handle.request_allowance(5000).await; - non_validator_handle.request_allowance(5000).await; - - Instant::now() - }); - - // Allow for a little bit of time to pass to ensure the background task is running. - tokio::time::sleep(Duration::from_secs(1)).await; - - validator_handle.request_allowance(10000).await; - validator_handle.request_allowance(10000).await; - - let v_finished = Instant::now(); - - let nv_finished = background_nv_request - .await - .expect("failed to join background nv task"); - - let nv_completed = nv_finished.duration_since(start); - assert!( - nv_completed >= Duration::from_millis(4500), - "non-validator did not delay sufficiently: {:?}", - nv_completed - ); - - let v_completed = v_finished.duration_since(start); - assert!( - v_completed <= Duration::from_millis(1500), - "validator did not finish quickly enough: {:?}", - v_completed - ); - } -} diff --git a/node/src/components/network/metrics.rs b/node/src/components/network/metrics.rs index c6ccf5d8fb..1ba0adae91 100644 --- a/node/src/components/network/metrics.rs +++ b/node/src/components/network/metrics.rs @@ -117,6 +117,7 @@ pub(super) struct Metrics { pub(super) requests_for_trie_finished: RegisteredMetric, /// Total time spent delaying outgoing traffic to non-validators due to limiter, in seconds. + #[allow(dead_code)] // Metric kept for backwards compabitility. pub(super) accumulated_outgoing_limiter_delay: RegisteredMetric, } From 9ff88ee85e735fa9c2928cdba6fc5d4989e25bb4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 12:51:38 +0200 Subject: [PATCH 648/735] Renamed outdated clippy lints --- node/src/components/consensus.rs | 6 +++--- node/src/components/consensus/era_supervisor.rs | 4 ++-- .../consensus/highway_core/active_validator.rs | 2 +- .../components/consensus/highway_core/evidence.rs | 4 ++-- .../consensus/highway_core/finality_detector.rs | 4 ++-- .../highway_core/finality_detector/rewards.rs | 6 +++--- .../consensus/highway_core/highway/vertex.rs | 4 ++-- .../consensus/highway_core/highway_testing.rs | 2 +- .../src/components/consensus/highway_core/state.rs | 14 +++++++------- .../consensus/highway_core/state/block.rs | 2 +- .../consensus/highway_core/state/panorama.rs | 6 +++--- .../consensus/highway_core/state/tallies.rs | 3 ++- .../consensus/highway_core/state/tests.rs | 2 +- .../consensus/highway_core/state/unit.rs | 2 +- .../consensus/highway_core/synchronizer/tests.rs | 2 +- node/src/components/consensus/protocols/common.rs | 2 +- node/src/components/consensus/protocols/highway.rs | 6 +++--- .../consensus/protocols/highway/participation.rs | 2 +- .../protocols/highway/round_success_meter.rs | 6 +++--- .../consensus/protocols/highway/tests.rs | 2 +- .../consensus/protocols/zug/des_testing.rs | 2 +- .../components/consensus/protocols/zug/message.rs | 4 ++-- node/src/components/consensus/utils/weight.rs | 4 ++-- types/src/access_rights.rs | 2 +- types/src/crypto/asymmetric_key.rs | 2 +- types/src/era_id.rs | 4 ++-- 26 files changed, 50 insertions(+), 49 deletions(-) diff --git a/node/src/components/consensus.rs b/node/src/components/consensus.rs index ed211224ad..2f6bfab143 100644 --- a/node/src/components/consensus.rs +++ b/node/src/components/consensus.rs @@ -1,6 +1,6 @@ //! The consensus component. Provides distributed consensus among the nodes in the network. -#![warn(clippy::integer_arithmetic)] +#![warn(clippy::arithmetic_side_effects)] mod cl_context; mod config; @@ -70,10 +70,10 @@ pub(crate) use validator_change::ValidatorChange; const COMPONENT_NAME: &str = "consensus"; -#[allow(clippy::integer_arithmetic)] +#[allow(clippy::arithmetic_side_effects)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::integer_arithmetic` lint. + // module-wide `clippy::arithmetic_side_effects` lint. use casper_types::{EraId, PublicKey}; use datasize::DataSize; diff --git a/node/src/components/consensus/era_supervisor.rs b/node/src/components/consensus/era_supervisor.rs index ef9f2cd77d..4c894a0b27 100644 --- a/node/src/components/consensus/era_supervisor.rs +++ b/node/src/components/consensus/era_supervisor.rs @@ -461,7 +461,7 @@ impl EraSupervisor { let seed = Self::era_seed(booking_block_hash, key_block.accumulated_seed()); // The beginning of the new era is marked by the key block. - #[allow(clippy::integer_arithmetic)] // Block height should never reach u64::MAX. + #[allow(clippy::arithmetic_side_effects)] // Block height should never reach u64::MAX. let start_height = key_block.height() + 1; let start_time = key_block.timestamp(); @@ -942,7 +942,7 @@ impl EraSupervisor { self.open_eras.get_mut(&era_id).unwrap() } - #[allow(clippy::integer_arithmetic)] // Block height should never reach u64::MAX. + #[allow(clippy::arithmetic_side_effects)] // Block height should never reach u64::MAX. fn handle_consensus_outcome( &mut self, effect_builder: EffectBuilder, diff --git a/node/src/components/consensus/highway_core/active_validator.rs b/node/src/components/consensus/highway_core/active_validator.rs index ebddb64986..56496d41cb 100644 --- a/node/src/components/consensus/highway_core/active_validator.rs +++ b/node/src/components/consensus/highway_core/active_validator.rs @@ -654,7 +654,7 @@ pub(crate) fn write_last_unit( } #[cfg(test)] -#[allow(clippy::integer_arithmetic)] // Overflows in tests panic anyway. +#[allow(clippy::arithmetic_side_effects)] // Overflows in tests panic anyway. mod tests { use std::{collections::BTreeSet, fmt::Debug}; use tempfile::tempdir; diff --git a/node/src/components/consensus/highway_core/evidence.rs b/node/src/components/consensus/highway_core/evidence.rs index 5667edde00..8e6e7a4c89 100644 --- a/node/src/components/consensus/highway_core/evidence.rs +++ b/node/src/components/consensus/highway_core/evidence.rs @@ -34,10 +34,10 @@ pub(crate) enum EvidenceError { Signature, } -#[allow(clippy::integer_arithmetic)] +#[allow(clippy::arithmetic_side_effects)] pub mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::integer_arithmetic` lint. + // module-wide `clippy::arithmetic_side_effects` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; diff --git a/node/src/components/consensus/highway_core/finality_detector.rs b/node/src/components/consensus/highway_core/finality_detector.rs index 717d669f97..9ea3151a69 100644 --- a/node/src/components/consensus/highway_core/finality_detector.rs +++ b/node/src/components/consensus/highway_core/finality_detector.rs @@ -125,7 +125,7 @@ impl FinalityDetector { } /// Returns the quorum required by a summit with the specified level and the required FTT. - #[allow(clippy::integer_arithmetic)] // See comments. + #[allow(clippy::arithmetic_side_effects)] // See comments. fn quorum_for_lvl(&self, lvl: usize, total_w: Weight) -> Weight { // A level-lvl summit with quorum total_w/2 + t has relative FTT 2t(1 − 1/2^lvl). So: // quorum = total_w / 2 + ftt / 2 / (1 - 1/2^lvl) @@ -153,7 +153,7 @@ impl FinalityDetector { /// Returns the height of the next block that will be finalized. fn next_height(&self, state: &State) -> u64 { // In a trillion years, we need to make block height u128. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] let height_plus_1 = |bhash| state.block(bhash).height + 1; self.last_finalized.as_ref().map_or(0, height_plus_1) } diff --git a/node/src/components/consensus/highway_core/finality_detector/rewards.rs b/node/src/components/consensus/highway_core/finality_detector/rewards.rs index 4f2528b2fd..24b76718b5 100644 --- a/node/src/components/consensus/highway_core/finality_detector/rewards.rs +++ b/node/src/components/consensus/highway_core/finality_detector/rewards.rs @@ -81,7 +81,7 @@ fn compute_rewards_for( let faulty_w: Weight = panorama.iter_faulty().map(|vidx| state.weight(vidx)).sum(); // Collect the block rewards for each validator who is a member of at least one summit. - #[allow(clippy::integer_arithmetic)] // See inline comments. + #[allow(clippy::arithmetic_side_effects)] // See inline comments. max_quorum .enumerate() .zip(state.weights()) @@ -139,7 +139,7 @@ fn round_participation<'a, C: Context>( maybe_unit.map_or(RoundParticipation::No, |(vh, unit)| { // Round length is not 0: // It is computed as 2^round_exp * min_round_length from a valid WireUnit. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] if r_id.millis() % unit.round_len.millis() != 0 { // Round length doesn't divide `r_id`, so the validator was not assigned to that round. RoundParticipation::Unassigned @@ -153,7 +153,7 @@ fn round_participation<'a, C: Context>( } #[allow(unused_qualifications)] // This is to suppress warnings originating in the test macros. -#[allow(clippy::integer_arithmetic)] // Overflows in tests would panic anyway. +#[allow(clippy::arithmetic_side_effects)] // Overflows in tests would panic anyway. #[cfg(test)] mod tests { use casper_types::TimeDiff; diff --git a/node/src/components/consensus/highway_core/highway/vertex.rs b/node/src/components/consensus/highway_core/highway/vertex.rs index c8f38611fd..11ab9321d5 100644 --- a/node/src/components/consensus/highway_core/highway/vertex.rs +++ b/node/src/components/consensus/highway_core/highway/vertex.rs @@ -15,10 +15,10 @@ use crate::components::consensus::{ utils::{ValidatorIndex, Validators}, }; -#[allow(clippy::integer_arithmetic)] +#[allow(clippy::arithmetic_side_effects)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::integer_arithmetic` lint. + // module-wide `clippy::arithmetic_side_effects` lint. use casper_types::Timestamp; use datasize::DataSize; diff --git a/node/src/components/consensus/highway_core/highway_testing.rs b/node/src/components/consensus/highway_core/highway_testing.rs index 78faa072f3..79b9d0b6aa 100644 --- a/node/src/components/consensus/highway_core/highway_testing.rs +++ b/node/src/components/consensus/highway_core/highway_testing.rs @@ -1,4 +1,4 @@ -#![allow(clippy::integer_arithmetic)] // In tests, overflows panic anyway. +#![allow(clippy::arithmetic_side_effects)] // In tests, overflows panic anyway. use std::{ collections::{hash_map::DefaultHasher, HashMap, VecDeque}, diff --git a/node/src/components/consensus/highway_core/state.rs b/node/src/components/consensus/highway_core/state.rs index 3515bc2e0a..d702b10c6c 100644 --- a/node/src/components/consensus/highway_core/state.rs +++ b/node/src/components/consensus/highway_core/state.rs @@ -688,12 +688,12 @@ impl State { if block.height == height { return Some(hash); } - #[allow(clippy::integer_arithmetic)] // block.height > height, otherwise we returned. + #[allow(clippy::arithmetic_side_effects)] // block.height > height, otherwise we returned. let diff = block.height - height; // We want to make the greatest step 2^i such that 2^i <= diff. let max_i = log2(diff) as usize; // A block at height > 0 always has at least its parent entry in skip_idx. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] let i = max_i.min(block.skip_idx.len() - 1); self.find_ancestor_proposal(&block.skip_idx[i], height) } @@ -711,7 +711,7 @@ impl State { return Err(UnitError::Banned); } let rl_millis = self.params.min_round_length().millis(); - #[allow(clippy::integer_arithmetic)] // We check for overflow before the left shift. + #[allow(clippy::arithmetic_side_effects)] // We check for overflow before the left shift. if wunit.round_exp as u32 > rl_millis.leading_zeros() || rl_millis << wunit.round_exp > self.params.max_round_length().millis() { @@ -745,7 +745,7 @@ impl State { if wunit.seq_number != panorama.next_seq_num(self, creator) { return Err(UnitError::SequenceNumber); } - #[allow(clippy::integer_arithmetic)] // We checked for overflow in pre_validate_unit. + #[allow(clippy::arithmetic_side_effects)] // We checked for overflow in pre_validate_unit. let round_len = TimeDiff::from_millis(self.params.min_round_length().millis() << wunit.round_exp); let r_id = round_id(timestamp, round_len); @@ -755,7 +755,7 @@ impl State { // The round length must not change within a round: Even with respect to the // greater of the two lengths, a round boundary must be between the units. let max_rl = prev_unit.round_len().max(round_len); - #[allow(clippy::integer_arithmetic)] // max_rl is always greater than 0. + #[allow(clippy::arithmetic_side_effects)] // max_rl is always greater than 0. if prev_unit.timestamp.millis() / max_rl.millis() == timestamp.millis() / max_rl.millis() { @@ -842,7 +842,7 @@ impl State { let max_i = log2(diff) as usize; // Log is safe because diff is not zero. // Diff is not zero, so the unit has a predecessor and skip_idx is not empty. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] let i = max_i.min(unit.skip_idx.len() - 1); self.find_in_swimlane(&unit.skip_idx[i], seq_number) } @@ -1135,7 +1135,7 @@ pub(crate) fn round_id(timestamp: Timestamp, round_len: TimeDiff) -> Timestamp { error!("called round_id with round_len 0."); return timestamp; } - #[allow(clippy::integer_arithmetic)] // Checked for division by 0 above. + #[allow(clippy::arithmetic_side_effects)] // Checked for division by 0 above. Timestamp::from((timestamp.millis() / round_len.millis()) * round_len.millis()) } diff --git a/node/src/components/consensus/highway_core/state/block.rs b/node/src/components/consensus/highway_core/state/block.rs index 67e9d06736..7cf3b6ab4a 100644 --- a/node/src/components/consensus/highway_core/state/block.rs +++ b/node/src/components/consensus/highway_core/state/block.rs @@ -33,7 +33,7 @@ impl Block { Some(hash) => (state.block(&hash), vec![hash]), }; // In a trillion years, we need to make block height u128. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] let height = parent.height + 1; for i in 0..height.trailing_zeros() as usize { let ancestor = state.block(&skip_idx[i]); diff --git a/node/src/components/consensus/highway_core/state/panorama.rs b/node/src/components/consensus/highway_core/state/panorama.rs index b1dd31b37c..533d2f958c 100644 --- a/node/src/components/consensus/highway_core/state/panorama.rs +++ b/node/src/components/consensus/highway_core/state/panorama.rs @@ -13,10 +13,10 @@ use crate::components::consensus::{ utils::{ValidatorIndex, ValidatorMap}, }; -#[allow(clippy::integer_arithmetic)] +#[allow(clippy::arithmetic_side_effects)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::integer_arithmetic` lint. + // module-wide `clippy::arithmetic_side_effects` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; @@ -154,7 +154,7 @@ impl Panorama { /// Returns the correct sequence number for a new unit by `vidx` with this panorama. pub(crate) fn next_seq_num(&self, state: &State, vidx: ValidatorIndex) -> u64 { // In a trillion years, we need to make seq number u128. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] let add1 = |vh: &C::Hash| state.unit(vh).seq_number + 1; self[vidx].correct().map_or(0, add1) } diff --git a/node/src/components/consensus/highway_core/state/tallies.rs b/node/src/components/consensus/highway_core/state/tallies.rs index 732bf63454..eea7732842 100644 --- a/node/src/components/consensus/highway_core/state/tallies.rs +++ b/node/src/components/consensus/highway_core/state/tallies.rs @@ -153,7 +153,8 @@ impl<'a, C: Context> Tallies<'a, C> { // If any block received more than 50%, a decision can be made: Either that block is // the fork choice, or we can pick its highest scoring child from `prev_tally`. if h_tally.max_w() > total_weight / 2 { - #[allow(clippy::integer_arithmetic)] // height < max_height, so height < u64::MAX + #[allow(clippy::arithmetic_side_effects)] + // height < max_height, so height < u64::MAX return Some( match prev_tally.filter_descendants(height, h_tally.max_bhash(), state) { Some(filtered) => (height + 1, filtered.max_bhash()), diff --git a/node/src/components/consensus/highway_core/state/tests.rs b/node/src/components/consensus/highway_core/state/tests.rs index a04b0ace94..eb9a0b4408 100644 --- a/node/src/components/consensus/highway_core/state/tests.rs +++ b/node/src/components/consensus/highway_core/state/tests.rs @@ -1,5 +1,5 @@ #![allow(unused_qualifications)] // This is to suppress warnings originating in the test macros. -#![allow(clippy::integer_arithmetic)] // Overflows in tests would panic anyway. +#![allow(clippy::arithmetic_side_effects)] // Overflows in tests would panic anyway. use std::{ collections::{hash_map::DefaultHasher, BTreeSet}, diff --git a/node/src/components/consensus/highway_core/state/unit.rs b/node/src/components/consensus/highway_core/state/unit.rs index 2dd0e05bd4..7bfc8f46a1 100644 --- a/node/src/components/consensus/highway_core/state/unit.rs +++ b/node/src/components/consensus/highway_core/state/unit.rs @@ -83,7 +83,7 @@ impl Unit { skip_idx.push(old_unit.skip_idx[i]); } } - #[allow(clippy::integer_arithmetic)] // Only called with valid units. + #[allow(clippy::arithmetic_side_effects)] // Only called with valid units. let round_len = TimeDiff::from_millis(state.params().min_round_length().millis() << wunit.round_exp); let unit = Unit { diff --git a/node/src/components/consensus/highway_core/synchronizer/tests.rs b/node/src/components/consensus/highway_core/synchronizer/tests.rs index 0d99dbd764..694f609f0e 100644 --- a/node/src/components/consensus/highway_core/synchronizer/tests.rs +++ b/node/src/components/consensus/highway_core/synchronizer/tests.rs @@ -105,7 +105,7 @@ fn purge_vertices() { // * b0: in the main queue // * c2: waiting for dependency c1 to be added let purge_vertex_timeout = 0x20; - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] sync.purge_vertices((0x41 - purge_vertex_timeout).into()); // The main queue should now contain only c1. If we remove it, the synchronizer is empty. diff --git a/node/src/components/consensus/protocols/common.rs b/node/src/components/consensus/protocols/common.rs index 4924fb85c5..0bbd992327 100644 --- a/node/src/components/consensus/protocols/common.rs +++ b/node/src/components/consensus/protocols/common.rs @@ -66,7 +66,7 @@ pub(crate) fn ftt( finality_threshold_fraction < 1.into(), "finality threshold must be less than 100%" ); - #[allow(clippy::integer_arithmetic)] // FTT is less than 1, so this can't overflow + #[allow(clippy::arithmetic_side_effects)] // FTT is less than 1, so this can't overflow let ftt = total_weight * *finality_threshold_fraction.numer() as u128 / *finality_threshold_fraction.denom() as u128; (ftt as u64).into() diff --git a/node/src/components/consensus/protocols/highway.rs b/node/src/components/consensus/protocols/highway.rs index a81d498973..9999266cf4 100644 --- a/node/src/components/consensus/protocols/highway.rs +++ b/node/src/components/consensus/protocols/highway.rs @@ -122,7 +122,7 @@ impl HighwayProtocol { .trailing_zeros() .saturating_sub(1) as u8; // Doesn't overflow since it's at most highway_config.maximum_round_length. - #[allow(clippy::integer_arithmetic)] + #[allow(clippy::arithmetic_side_effects)] let maximum_round_length = TimeDiff::from_millis(minimum_round_length.millis() << maximum_round_exponent); @@ -663,10 +663,10 @@ impl HighwayProtocol { } } -#[allow(clippy::integer_arithmetic)] +#[allow(clippy::arithmetic_side_effects)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::integer_arithmetic` lint. + // module-wide `clippy::arithmetic_side_effects` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; diff --git a/node/src/components/consensus/protocols/highway/participation.rs b/node/src/components/consensus/protocols/highway/participation.rs index a7c6fa6d45..bfb41394f0 100644 --- a/node/src/components/consensus/protocols/highway/participation.rs +++ b/node/src/components/consensus/protocols/highway/participation.rs @@ -65,7 +65,7 @@ where impl Participation { /// Creates a new `Participation` map, showing validators seen as faulty or inactive by the /// Highway instance. - #[allow(clippy::integer_arithmetic)] // We use u128 to prevent overflows in weight calculation. + #[allow(clippy::arithmetic_side_effects)] // We use u128 to prevent overflows in weight calculation. pub(crate) fn new(highway: &Highway) -> Self { let now = Timestamp::now(); let state = highway.state(); diff --git a/node/src/components/consensus/protocols/highway/round_success_meter.rs b/node/src/components/consensus/protocols/highway/round_success_meter.rs index 938bf4dbeb..9b24bd2dc6 100644 --- a/node/src/components/consensus/protocols/highway/round_success_meter.rs +++ b/node/src/components/consensus/protocols/highway/round_success_meter.rs @@ -60,7 +60,7 @@ impl RoundSuccessMeter { fn check_proposals_success(&self, state: &State, proposal_h: &C::Hash) -> bool { let total_w = state.total_weight(); - #[allow(clippy::integer_arithmetic)] // FTT is less than 100%, so this can't overflow. + #[allow(clippy::arithmetic_side_effects)] // FTT is less than 100%, so this can't overflow. let finality_detector = FinalityDetector::::new(max( Weight( (u128::from(total_w) * *self.config.acceleration_ftt.numer() as u128 @@ -185,7 +185,7 @@ impl RoundSuccessMeter { pub(super) fn new_length(&self) -> TimeDiff { let current_round_index = round_index(self.current_round_id, self.current_round_len); let num_failures = self.count_failures() as u64; - #[allow(clippy::integer_arithmetic)] // The acceleration_parameter is not zero. + #[allow(clippy::arithmetic_side_effects)] // The acceleration_parameter is not zero. if num_failures > self.config.max_failed_rounds() && self.current_round_len * 2 <= self.max_round_len { @@ -204,7 +204,7 @@ impl RoundSuccessMeter { } /// Returns the round index `i`, if `r_id` is the ID of the `i`-th round after the epoch. -#[allow(clippy::integer_arithmetic)] // Checking for division by 0. +#[allow(clippy::arithmetic_side_effects)] // Checking for division by 0. fn round_index(r_id: Timestamp, round_len: TimeDiff) -> u64 { if round_len.millis() == 0 { error!("called round_index with round_len 0."); diff --git a/node/src/components/consensus/protocols/highway/tests.rs b/node/src/components/consensus/protocols/highway/tests.rs index cfeee9e653..aff5aa2b71 100644 --- a/node/src/components/consensus/protocols/highway/tests.rs +++ b/node/src/components/consensus/protocols/highway/tests.rs @@ -33,7 +33,7 @@ where I: IntoIterator, T: Into, { - #[allow(clippy::integer_arithmetic)] // Left shift with small enough constants. + #[allow(clippy::arithmetic_side_effects)] // Left shift with small enough constants. let params = state::Params::new( seed, highway_testing::TEST_BLOCK_REWARD, diff --git a/node/src/components/consensus/protocols/zug/des_testing.rs b/node/src/components/consensus/protocols/zug/des_testing.rs index 826ed0879f..5c8b114e6f 100644 --- a/node/src/components/consensus/protocols/zug/des_testing.rs +++ b/node/src/components/consensus/protocols/zug/des_testing.rs @@ -1,4 +1,4 @@ -#![allow(clippy::integer_arithmetic)] // In tests, overflows panic anyway. +#![allow(clippy::arithmetic_side_effects)] // In tests, overflows panic anyway. use std::{ collections::{hash_map::DefaultHasher, HashMap, VecDeque}, diff --git a/node/src/components/consensus/protocols/zug/message.rs b/node/src/components/consensus/protocols/zug/message.rs index 53bfd84e49..8fd0fcf1c9 100644 --- a/node/src/components/consensus/protocols/zug/message.rs +++ b/node/src/components/consensus/protocols/zug/message.rs @@ -14,10 +14,10 @@ use crate::{ utils::ds, }; -#[allow(clippy::integer_arithmetic)] +#[allow(clippy::arithmetic_side_effects)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::integer_arithmetic` lint. + // module-wide `clippy::arithmetic_side_effects` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; diff --git a/node/src/components/consensus/utils/weight.rs b/node/src/components/consensus/utils/weight.rs index eb938d9816..4761054ff9 100644 --- a/node/src/components/consensus/utils/weight.rs +++ b/node/src/components/consensus/utils/weight.rs @@ -54,7 +54,7 @@ impl<'a> Sum<&'a Weight> for Weight { impl Mul for Weight { type Output = Self; - #[allow(clippy::integer_arithmetic)] // The caller needs to prevent overflows. + #[allow(clippy::arithmetic_side_effects)] // The caller needs to prevent overflows. fn mul(self, rhs: u64) -> Self { Weight(self.0 * rhs) } @@ -63,7 +63,7 @@ impl Mul for Weight { impl Div for Weight { type Output = Self; - #[allow(clippy::integer_arithmetic)] // The caller needs to avoid dividing by zero. + #[allow(clippy::arithmetic_side_effects)] // The caller needs to avoid dividing by zero. fn div(self, rhs: u64) -> Self { Weight(self.0 / rhs) } diff --git a/types/src/access_rights.rs b/types/src/access_rights.rs index 5593da98d0..714c221e75 100644 --- a/types/src/access_rights.rs +++ b/types/src/access_rights.rs @@ -21,7 +21,7 @@ pub const ACCESS_RIGHTS_SERIALIZED_LENGTH: usize = 1; bitflags! { /// A struct which behaves like a set of bitflags to define access rights associated with a /// [`URef`](crate::URef). - #[allow(clippy::derive_hash_xor_eq)] + #[allow(clippy::derived_hash_with_manual_eq)] #[cfg_attr(feature = "datasize", derive(DataSize))] pub struct AccessRights: u8 { /// No permissions diff --git a/types/src/crypto/asymmetric_key.rs b/types/src/crypto/asymmetric_key.rs index c340ffad33..71ca189ed3 100644 --- a/types/src/crypto/asymmetric_key.rs +++ b/types/src/crypto/asymmetric_key.rs @@ -757,7 +757,7 @@ impl Ord for PublicKey { // This implementation of `Hash` agrees with the derived `PartialEq`. It's required since // `ed25519_dalek::PublicKey` doesn't implement `Hash`. -#[allow(clippy::derive_hash_xor_eq)] +#[allow(clippy::derived_hash_with_manual_eq)] impl Hash for PublicKey { fn hash(&self, state: &mut H) { self.tag().hash(state); diff --git a/types/src/era_id.rs b/types/src/era_id.rs index 9fe3d98c3c..37bd86be8f 100644 --- a/types/src/era_id.rs +++ b/types/src/era_id.rs @@ -128,7 +128,7 @@ impl FromStr for EraId { impl Add for EraId { type Output = EraId; - #[allow(clippy::integer_arithmetic)] // The caller must make sure this doesn't overflow. + #[allow(clippy::arithmetic_side_effects)] // The caller must make sure this doesn't overflow. fn add(self, x: u64) -> EraId { EraId::from(self.0 + x) } @@ -143,7 +143,7 @@ impl AddAssign for EraId { impl Sub for EraId { type Output = EraId; - #[allow(clippy::integer_arithmetic)] // The caller must make sure this doesn't overflow. + #[allow(clippy::arithmetic_side_effects)] // The caller must make sure this doesn't overflow. fn sub(self, x: u64) -> EraId { EraId::from(self.0 - x) } From fc580dceb336c68f3f1498838bfb0196b18b2e5c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 12:53:54 +0200 Subject: [PATCH 649/735] Fix remaining clippy lints in `node` --- node/src/components/network.rs | 4 ++-- node/src/types/validator_matrix.rs | 3 +-- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 644c15fd09..0ca1462041 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -1414,12 +1414,12 @@ where for (public_key, status) in self.incoming_validator_status.iter_mut() { // If there is only a `Weak` ref, we lost the connection to the validator, but the // disconnection has not reached us yet. - status.upgrade().map(|arc| { + if let Some(arc) = status.upgrade() { arc.store( active_validators.contains(public_key), std::sync::atomic::Ordering::Relaxed, ) - }); + } } Effects::default() diff --git a/node/src/types/validator_matrix.rs b/node/src/types/validator_matrix.rs index 19b98d4754..adc81a4446 100644 --- a/node/src/types/validator_matrix.rs +++ b/node/src/types/validator_matrix.rs @@ -271,8 +271,7 @@ impl ValidatorMatrix { .values() .rev() .take(self.auction_delay as usize + 1) - .map(|validator_weights| validator_weights.validator_public_keys()) - .flatten() + .flat_map(|validator_weights| validator_weights.validator_public_keys()) .cloned() .collect() } From 7973d306651f9ee7c5ca5e78d0030991284e8e3b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 12:55:49 +0200 Subject: [PATCH 650/735] Remove unused code leftover from `muxink` (channel setup) --- node/src/components/network.rs | 20 -------------------- node/src/components/network/tests.rs | 22 ++-------------------- 2 files changed, 2 insertions(+), 40 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 0ca1462041..ce65f6ad89 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -1426,26 +1426,6 @@ where } } -/// Setup a fixed amount of senders/receivers. -fn unbounded_channels() -> ([UnboundedSender; N], [UnboundedReceiver; N]) { - // TODO: Improve this somehow to avoid the extra allocation required (turning a - // `Vec` into a fixed size array). - let mut senders_vec = Vec::with_capacity(Channel::COUNT); - - let receivers: [_; N] = array_init(|_| { - let (sender, receiver) = mpsc::unbounded_channel(); - senders_vec.push(sender); - - receiver - }); - - let senders: [_; N] = senders_vec - .try_into() - .expect("constant size array conversion failed"); - - (senders, receivers) -} - /// Transport type for base encrypted connections. type Transport = SslStream; diff --git a/node/src/components/network/tests.rs b/node/src/components/network/tests.rs index 2584b85ec1..435bc4822f 100644 --- a/node/src/components/network/tests.rs +++ b/node/src/components/network/tests.rs @@ -21,8 +21,8 @@ use tracing::{debug, info}; use casper_types::SecretKey; use super::{ - chain_info::ChainInfo, unbounded_channels, Config, Event as NetworkEvent, FromIncoming, - GossipedAddress, Identity, MessageKind, Network, Payload, Ticket, + chain_info::ChainInfo, Config, Event as NetworkEvent, FromIncoming, GossipedAddress, Identity, + MessageKind, Network, Payload, Ticket, }; use crate::{ components::{ @@ -541,21 +541,3 @@ async fn ensure_peers_metric_is_correct() { net.finalize().await; } } - -#[test] -fn unbounded_channels_wires_up_correctly() { - let (senders, mut receivers) = unbounded_channels::(); - - assert_eq!(senders.len(), 3); - - senders[0].send('A').unwrap(); - senders[0].send('a').unwrap(); - senders[1].send('B').unwrap(); - senders[2].send('C').unwrap(); - - assert_eq!(receivers[0].recv().now_or_never().unwrap().unwrap(), 'A'); - assert_eq!(receivers[0].recv().now_or_never().unwrap().unwrap(), 'a'); - assert_eq!(receivers[1].recv().now_or_never().unwrap().unwrap(), 'B'); - assert_eq!(receivers[2].recv().now_or_never().unwrap().unwrap(), 'C'); - assert!(receivers[0].recv().now_or_never().is_none()); -} From d25f9d28473359bcc9bb75b940508dfc4872242a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 12:58:09 +0200 Subject: [PATCH 651/735] Fixed formatting issues introduced by recent merge of `dev` to `feat-1.6` by formatting with a more recent nightly --- .../tests/src/test/system_contracts/auction/bids.rs | 9 +++------ .../src/components/consensus/highway_core/state/tests.rs | 6 ++++++ node/src/components/metrics.rs | 6 +++--- node/src/utils/specimen.rs | 4 ++-- 4 files changed, 14 insertions(+), 11 deletions(-) diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index d659a64b81..cebecc8cca 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -8,13 +8,10 @@ use casper_engine_test_support::{ ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, UpgradeRequestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, DEFAULT_GENESIS_CONFIG_HASH, - DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_GENESIS_TIMESTAMP_MILLIS, - DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PROTOCOL_VERSION, DEFAULT_PROTOCOL_VERSION, + DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PROTOCOL_VERSION, DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, - DEFAULT_UNBONDING_DELAY, DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, - MINIMUM_ACCOUNT_CREATION_BALANCE, MINIMUM_ACCOUNT_CREATION_BALANCE, - PRODUCTION_RUN_GENESIS_REQUEST, PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, SYSTEM_ADDR, - TIMESTAMP_MILLIS_INCREMENT, TIMESTAMP_MILLIS_INCREMENT, + DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, + PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, TIMESTAMP_MILLIS_INCREMENT, }; use casper_execution_engine::{ core::{ diff --git a/node/src/components/consensus/highway_core/state/tests.rs b/node/src/components/consensus/highway_core/state/tests.rs index eb9a0b4408..df13d6f41b 100644 --- a/node/src/components/consensus/highway_core/state/tests.rs +++ b/node/src/components/consensus/highway_core/state/tests.rs @@ -500,6 +500,8 @@ fn validate_lnc_mixed_citations() -> Result<(), AddUnitError> { if !ENABLE_ENDORSEMENTS { return Ok(()); } + + #[rustfmt::skip] // Eric's vote should not require an endorsement as his unit e0 cites equivocator Carol before // the fork. // @@ -545,6 +547,8 @@ fn validate_lnc_transitive_endorsement() -> Result<(), AddUnitError if !ENABLE_ENDORSEMENTS { return Ok(()); } + + #[rustfmt::skip] // Endorsements should be transitive to descendants. // c1 doesn't have to be endorsed, it is enough that c0 is. // @@ -582,6 +586,8 @@ fn validate_lnc_cite_descendant_of_equivocation() -> Result<(), AddUnitError Date: Tue, 29 Aug 2023 13:35:13 +0200 Subject: [PATCH 652/735] juliet: Backport for compatibility with nightly-2023-03-25 --- Cargo.lock | 5 +++-- juliet/Cargo.toml | 1 + juliet/src/rpc.rs | 9 +++++---- 3 files changed, 9 insertions(+), 6 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 59889c2d49..356977cbf4 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3251,6 +3251,7 @@ dependencies = [ "derive_more 1.0.0-beta.3", "futures", "hex_fmt", + "once_cell", "proptest", "proptest-attr-macro", "proptest-derive", @@ -3782,9 +3783,9 @@ dependencies = [ [[package]] name = "once_cell" -version = "1.17.1" +version = "1.18.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3" +checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d" [[package]] name = "oorandom" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 4e282e0f73..d8b74ab8f8 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -12,6 +12,7 @@ bytemuck = { version = "1.13.1", features = [ "derive" ] } bytes = "1.4.0" futures = "0.3.28" hex_fmt = "0.3.0" +once_cell = "1.18.0" strum = { version = "0.25.0", features = ["derive"] } thiserror = "1.0.40" tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 4ab7ee6209..abf9d5263f 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -22,12 +22,13 @@ use std::{ collections::HashMap, fmt::{self, Display, Formatter}, - sync::{Arc, OnceLock}, + sync::Arc, time::Duration, }; use bytes::Bytes; +use once_cell::sync::OnceCell; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncWrite}, @@ -136,7 +137,7 @@ struct NewOutgoingRequest { #[derive(Debug)] struct RequestGuardInner { /// The returned response of the request. - outcome: OnceLock, RequestError>>, + outcome: OnceCell, RequestError>>, /// A notifier for when the result arrives. ready: Option, } @@ -144,7 +145,7 @@ struct RequestGuardInner { impl RequestGuardInner { fn new() -> Self { RequestGuardInner { - outcome: OnceLock::new(), + outcome: OnceCell::new(), ready: Some(Notify::new()), } } @@ -425,7 +426,7 @@ pub struct RequestGuard { impl RequestGuard { /// Creates a new request guard with no shared data that is already resolved to an error. fn new_error(error: RequestError) -> Self { - let outcome = OnceLock::new(); + let outcome = OnceCell::new(); outcome .set(Err(error)) .expect("newly constructed cell should always be empty"); From 19095d3599fbf02551a3928d3868a13b021fb110 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 14:03:07 +0200 Subject: [PATCH 653/735] Revert "Renamed outdated clippy lints" This reverts commit 9ff88ee85e735fa9c2928cdba6fc5d4989e25bb4. --- node/src/components/consensus.rs | 6 +++--- node/src/components/consensus/era_supervisor.rs | 4 ++-- .../consensus/highway_core/active_validator.rs | 2 +- .../components/consensus/highway_core/evidence.rs | 4 ++-- .../consensus/highway_core/finality_detector.rs | 4 ++-- .../highway_core/finality_detector/rewards.rs | 6 +++--- .../consensus/highway_core/highway/vertex.rs | 4 ++-- .../consensus/highway_core/highway_testing.rs | 2 +- .../src/components/consensus/highway_core/state.rs | 14 +++++++------- .../consensus/highway_core/state/block.rs | 2 +- .../consensus/highway_core/state/panorama.rs | 6 +++--- .../consensus/highway_core/state/tallies.rs | 3 +-- .../consensus/highway_core/state/tests.rs | 2 +- .../consensus/highway_core/state/unit.rs | 2 +- .../consensus/highway_core/synchronizer/tests.rs | 2 +- node/src/components/consensus/protocols/common.rs | 2 +- node/src/components/consensus/protocols/highway.rs | 6 +++--- .../consensus/protocols/highway/participation.rs | 2 +- .../protocols/highway/round_success_meter.rs | 6 +++--- .../consensus/protocols/highway/tests.rs | 2 +- .../consensus/protocols/zug/des_testing.rs | 2 +- .../components/consensus/protocols/zug/message.rs | 4 ++-- node/src/components/consensus/utils/weight.rs | 4 ++-- types/src/access_rights.rs | 2 +- types/src/crypto/asymmetric_key.rs | 2 +- types/src/era_id.rs | 4 ++-- 26 files changed, 49 insertions(+), 50 deletions(-) diff --git a/node/src/components/consensus.rs b/node/src/components/consensus.rs index 2f6bfab143..ed211224ad 100644 --- a/node/src/components/consensus.rs +++ b/node/src/components/consensus.rs @@ -1,6 +1,6 @@ //! The consensus component. Provides distributed consensus among the nodes in the network. -#![warn(clippy::arithmetic_side_effects)] +#![warn(clippy::integer_arithmetic)] mod cl_context; mod config; @@ -70,10 +70,10 @@ pub(crate) use validator_change::ValidatorChange; const COMPONENT_NAME: &str = "consensus"; -#[allow(clippy::arithmetic_side_effects)] +#[allow(clippy::integer_arithmetic)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::arithmetic_side_effects` lint. + // module-wide `clippy::integer_arithmetic` lint. use casper_types::{EraId, PublicKey}; use datasize::DataSize; diff --git a/node/src/components/consensus/era_supervisor.rs b/node/src/components/consensus/era_supervisor.rs index 4c894a0b27..ef9f2cd77d 100644 --- a/node/src/components/consensus/era_supervisor.rs +++ b/node/src/components/consensus/era_supervisor.rs @@ -461,7 +461,7 @@ impl EraSupervisor { let seed = Self::era_seed(booking_block_hash, key_block.accumulated_seed()); // The beginning of the new era is marked by the key block. - #[allow(clippy::arithmetic_side_effects)] // Block height should never reach u64::MAX. + #[allow(clippy::integer_arithmetic)] // Block height should never reach u64::MAX. let start_height = key_block.height() + 1; let start_time = key_block.timestamp(); @@ -942,7 +942,7 @@ impl EraSupervisor { self.open_eras.get_mut(&era_id).unwrap() } - #[allow(clippy::arithmetic_side_effects)] // Block height should never reach u64::MAX. + #[allow(clippy::integer_arithmetic)] // Block height should never reach u64::MAX. fn handle_consensus_outcome( &mut self, effect_builder: EffectBuilder, diff --git a/node/src/components/consensus/highway_core/active_validator.rs b/node/src/components/consensus/highway_core/active_validator.rs index 56496d41cb..ebddb64986 100644 --- a/node/src/components/consensus/highway_core/active_validator.rs +++ b/node/src/components/consensus/highway_core/active_validator.rs @@ -654,7 +654,7 @@ pub(crate) fn write_last_unit( } #[cfg(test)] -#[allow(clippy::arithmetic_side_effects)] // Overflows in tests panic anyway. +#[allow(clippy::integer_arithmetic)] // Overflows in tests panic anyway. mod tests { use std::{collections::BTreeSet, fmt::Debug}; use tempfile::tempdir; diff --git a/node/src/components/consensus/highway_core/evidence.rs b/node/src/components/consensus/highway_core/evidence.rs index 8e6e7a4c89..5667edde00 100644 --- a/node/src/components/consensus/highway_core/evidence.rs +++ b/node/src/components/consensus/highway_core/evidence.rs @@ -34,10 +34,10 @@ pub(crate) enum EvidenceError { Signature, } -#[allow(clippy::arithmetic_side_effects)] +#[allow(clippy::integer_arithmetic)] pub mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::arithmetic_side_effects` lint. + // module-wide `clippy::integer_arithmetic` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; diff --git a/node/src/components/consensus/highway_core/finality_detector.rs b/node/src/components/consensus/highway_core/finality_detector.rs index 9ea3151a69..717d669f97 100644 --- a/node/src/components/consensus/highway_core/finality_detector.rs +++ b/node/src/components/consensus/highway_core/finality_detector.rs @@ -125,7 +125,7 @@ impl FinalityDetector { } /// Returns the quorum required by a summit with the specified level and the required FTT. - #[allow(clippy::arithmetic_side_effects)] // See comments. + #[allow(clippy::integer_arithmetic)] // See comments. fn quorum_for_lvl(&self, lvl: usize, total_w: Weight) -> Weight { // A level-lvl summit with quorum total_w/2 + t has relative FTT 2t(1 − 1/2^lvl). So: // quorum = total_w / 2 + ftt / 2 / (1 - 1/2^lvl) @@ -153,7 +153,7 @@ impl FinalityDetector { /// Returns the height of the next block that will be finalized. fn next_height(&self, state: &State) -> u64 { // In a trillion years, we need to make block height u128. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] let height_plus_1 = |bhash| state.block(bhash).height + 1; self.last_finalized.as_ref().map_or(0, height_plus_1) } diff --git a/node/src/components/consensus/highway_core/finality_detector/rewards.rs b/node/src/components/consensus/highway_core/finality_detector/rewards.rs index 24b76718b5..4f2528b2fd 100644 --- a/node/src/components/consensus/highway_core/finality_detector/rewards.rs +++ b/node/src/components/consensus/highway_core/finality_detector/rewards.rs @@ -81,7 +81,7 @@ fn compute_rewards_for( let faulty_w: Weight = panorama.iter_faulty().map(|vidx| state.weight(vidx)).sum(); // Collect the block rewards for each validator who is a member of at least one summit. - #[allow(clippy::arithmetic_side_effects)] // See inline comments. + #[allow(clippy::integer_arithmetic)] // See inline comments. max_quorum .enumerate() .zip(state.weights()) @@ -139,7 +139,7 @@ fn round_participation<'a, C: Context>( maybe_unit.map_or(RoundParticipation::No, |(vh, unit)| { // Round length is not 0: // It is computed as 2^round_exp * min_round_length from a valid WireUnit. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] if r_id.millis() % unit.round_len.millis() != 0 { // Round length doesn't divide `r_id`, so the validator was not assigned to that round. RoundParticipation::Unassigned @@ -153,7 +153,7 @@ fn round_participation<'a, C: Context>( } #[allow(unused_qualifications)] // This is to suppress warnings originating in the test macros. -#[allow(clippy::arithmetic_side_effects)] // Overflows in tests would panic anyway. +#[allow(clippy::integer_arithmetic)] // Overflows in tests would panic anyway. #[cfg(test)] mod tests { use casper_types::TimeDiff; diff --git a/node/src/components/consensus/highway_core/highway/vertex.rs b/node/src/components/consensus/highway_core/highway/vertex.rs index 11ab9321d5..c8f38611fd 100644 --- a/node/src/components/consensus/highway_core/highway/vertex.rs +++ b/node/src/components/consensus/highway_core/highway/vertex.rs @@ -15,10 +15,10 @@ use crate::components::consensus::{ utils::{ValidatorIndex, Validators}, }; -#[allow(clippy::arithmetic_side_effects)] +#[allow(clippy::integer_arithmetic)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::arithmetic_side_effects` lint. + // module-wide `clippy::integer_arithmetic` lint. use casper_types::Timestamp; use datasize::DataSize; diff --git a/node/src/components/consensus/highway_core/highway_testing.rs b/node/src/components/consensus/highway_core/highway_testing.rs index 79b9d0b6aa..78faa072f3 100644 --- a/node/src/components/consensus/highway_core/highway_testing.rs +++ b/node/src/components/consensus/highway_core/highway_testing.rs @@ -1,4 +1,4 @@ -#![allow(clippy::arithmetic_side_effects)] // In tests, overflows panic anyway. +#![allow(clippy::integer_arithmetic)] // In tests, overflows panic anyway. use std::{ collections::{hash_map::DefaultHasher, HashMap, VecDeque}, diff --git a/node/src/components/consensus/highway_core/state.rs b/node/src/components/consensus/highway_core/state.rs index d702b10c6c..3515bc2e0a 100644 --- a/node/src/components/consensus/highway_core/state.rs +++ b/node/src/components/consensus/highway_core/state.rs @@ -688,12 +688,12 @@ impl State { if block.height == height { return Some(hash); } - #[allow(clippy::arithmetic_side_effects)] // block.height > height, otherwise we returned. + #[allow(clippy::integer_arithmetic)] // block.height > height, otherwise we returned. let diff = block.height - height; // We want to make the greatest step 2^i such that 2^i <= diff. let max_i = log2(diff) as usize; // A block at height > 0 always has at least its parent entry in skip_idx. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] let i = max_i.min(block.skip_idx.len() - 1); self.find_ancestor_proposal(&block.skip_idx[i], height) } @@ -711,7 +711,7 @@ impl State { return Err(UnitError::Banned); } let rl_millis = self.params.min_round_length().millis(); - #[allow(clippy::arithmetic_side_effects)] // We check for overflow before the left shift. + #[allow(clippy::integer_arithmetic)] // We check for overflow before the left shift. if wunit.round_exp as u32 > rl_millis.leading_zeros() || rl_millis << wunit.round_exp > self.params.max_round_length().millis() { @@ -745,7 +745,7 @@ impl State { if wunit.seq_number != panorama.next_seq_num(self, creator) { return Err(UnitError::SequenceNumber); } - #[allow(clippy::arithmetic_side_effects)] // We checked for overflow in pre_validate_unit. + #[allow(clippy::integer_arithmetic)] // We checked for overflow in pre_validate_unit. let round_len = TimeDiff::from_millis(self.params.min_round_length().millis() << wunit.round_exp); let r_id = round_id(timestamp, round_len); @@ -755,7 +755,7 @@ impl State { // The round length must not change within a round: Even with respect to the // greater of the two lengths, a round boundary must be between the units. let max_rl = prev_unit.round_len().max(round_len); - #[allow(clippy::arithmetic_side_effects)] // max_rl is always greater than 0. + #[allow(clippy::integer_arithmetic)] // max_rl is always greater than 0. if prev_unit.timestamp.millis() / max_rl.millis() == timestamp.millis() / max_rl.millis() { @@ -842,7 +842,7 @@ impl State { let max_i = log2(diff) as usize; // Log is safe because diff is not zero. // Diff is not zero, so the unit has a predecessor and skip_idx is not empty. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] let i = max_i.min(unit.skip_idx.len() - 1); self.find_in_swimlane(&unit.skip_idx[i], seq_number) } @@ -1135,7 +1135,7 @@ pub(crate) fn round_id(timestamp: Timestamp, round_len: TimeDiff) -> Timestamp { error!("called round_id with round_len 0."); return timestamp; } - #[allow(clippy::arithmetic_side_effects)] // Checked for division by 0 above. + #[allow(clippy::integer_arithmetic)] // Checked for division by 0 above. Timestamp::from((timestamp.millis() / round_len.millis()) * round_len.millis()) } diff --git a/node/src/components/consensus/highway_core/state/block.rs b/node/src/components/consensus/highway_core/state/block.rs index 7cf3b6ab4a..67e9d06736 100644 --- a/node/src/components/consensus/highway_core/state/block.rs +++ b/node/src/components/consensus/highway_core/state/block.rs @@ -33,7 +33,7 @@ impl Block { Some(hash) => (state.block(&hash), vec![hash]), }; // In a trillion years, we need to make block height u128. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] let height = parent.height + 1; for i in 0..height.trailing_zeros() as usize { let ancestor = state.block(&skip_idx[i]); diff --git a/node/src/components/consensus/highway_core/state/panorama.rs b/node/src/components/consensus/highway_core/state/panorama.rs index 533d2f958c..b1dd31b37c 100644 --- a/node/src/components/consensus/highway_core/state/panorama.rs +++ b/node/src/components/consensus/highway_core/state/panorama.rs @@ -13,10 +13,10 @@ use crate::components::consensus::{ utils::{ValidatorIndex, ValidatorMap}, }; -#[allow(clippy::arithmetic_side_effects)] +#[allow(clippy::integer_arithmetic)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::arithmetic_side_effects` lint. + // module-wide `clippy::integer_arithmetic` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; @@ -154,7 +154,7 @@ impl Panorama { /// Returns the correct sequence number for a new unit by `vidx` with this panorama. pub(crate) fn next_seq_num(&self, state: &State, vidx: ValidatorIndex) -> u64 { // In a trillion years, we need to make seq number u128. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] let add1 = |vh: &C::Hash| state.unit(vh).seq_number + 1; self[vidx].correct().map_or(0, add1) } diff --git a/node/src/components/consensus/highway_core/state/tallies.rs b/node/src/components/consensus/highway_core/state/tallies.rs index eea7732842..732bf63454 100644 --- a/node/src/components/consensus/highway_core/state/tallies.rs +++ b/node/src/components/consensus/highway_core/state/tallies.rs @@ -153,8 +153,7 @@ impl<'a, C: Context> Tallies<'a, C> { // If any block received more than 50%, a decision can be made: Either that block is // the fork choice, or we can pick its highest scoring child from `prev_tally`. if h_tally.max_w() > total_weight / 2 { - #[allow(clippy::arithmetic_side_effects)] - // height < max_height, so height < u64::MAX + #[allow(clippy::integer_arithmetic)] // height < max_height, so height < u64::MAX return Some( match prev_tally.filter_descendants(height, h_tally.max_bhash(), state) { Some(filtered) => (height + 1, filtered.max_bhash()), diff --git a/node/src/components/consensus/highway_core/state/tests.rs b/node/src/components/consensus/highway_core/state/tests.rs index df13d6f41b..a4589a0a7d 100644 --- a/node/src/components/consensus/highway_core/state/tests.rs +++ b/node/src/components/consensus/highway_core/state/tests.rs @@ -1,5 +1,5 @@ #![allow(unused_qualifications)] // This is to suppress warnings originating in the test macros. -#![allow(clippy::arithmetic_side_effects)] // Overflows in tests would panic anyway. +#![allow(clippy::integer_arithmetic)] // Overflows in tests would panic anyway. use std::{ collections::{hash_map::DefaultHasher, BTreeSet}, diff --git a/node/src/components/consensus/highway_core/state/unit.rs b/node/src/components/consensus/highway_core/state/unit.rs index 7bfc8f46a1..2dd0e05bd4 100644 --- a/node/src/components/consensus/highway_core/state/unit.rs +++ b/node/src/components/consensus/highway_core/state/unit.rs @@ -83,7 +83,7 @@ impl Unit { skip_idx.push(old_unit.skip_idx[i]); } } - #[allow(clippy::arithmetic_side_effects)] // Only called with valid units. + #[allow(clippy::integer_arithmetic)] // Only called with valid units. let round_len = TimeDiff::from_millis(state.params().min_round_length().millis() << wunit.round_exp); let unit = Unit { diff --git a/node/src/components/consensus/highway_core/synchronizer/tests.rs b/node/src/components/consensus/highway_core/synchronizer/tests.rs index 694f609f0e..0d99dbd764 100644 --- a/node/src/components/consensus/highway_core/synchronizer/tests.rs +++ b/node/src/components/consensus/highway_core/synchronizer/tests.rs @@ -105,7 +105,7 @@ fn purge_vertices() { // * b0: in the main queue // * c2: waiting for dependency c1 to be added let purge_vertex_timeout = 0x20; - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] sync.purge_vertices((0x41 - purge_vertex_timeout).into()); // The main queue should now contain only c1. If we remove it, the synchronizer is empty. diff --git a/node/src/components/consensus/protocols/common.rs b/node/src/components/consensus/protocols/common.rs index 0bbd992327..4924fb85c5 100644 --- a/node/src/components/consensus/protocols/common.rs +++ b/node/src/components/consensus/protocols/common.rs @@ -66,7 +66,7 @@ pub(crate) fn ftt( finality_threshold_fraction < 1.into(), "finality threshold must be less than 100%" ); - #[allow(clippy::arithmetic_side_effects)] // FTT is less than 1, so this can't overflow + #[allow(clippy::integer_arithmetic)] // FTT is less than 1, so this can't overflow let ftt = total_weight * *finality_threshold_fraction.numer() as u128 / *finality_threshold_fraction.denom() as u128; (ftt as u64).into() diff --git a/node/src/components/consensus/protocols/highway.rs b/node/src/components/consensus/protocols/highway.rs index 9999266cf4..a81d498973 100644 --- a/node/src/components/consensus/protocols/highway.rs +++ b/node/src/components/consensus/protocols/highway.rs @@ -122,7 +122,7 @@ impl HighwayProtocol { .trailing_zeros() .saturating_sub(1) as u8; // Doesn't overflow since it's at most highway_config.maximum_round_length. - #[allow(clippy::arithmetic_side_effects)] + #[allow(clippy::integer_arithmetic)] let maximum_round_length = TimeDiff::from_millis(minimum_round_length.millis() << maximum_round_exponent); @@ -663,10 +663,10 @@ impl HighwayProtocol { } } -#[allow(clippy::arithmetic_side_effects)] +#[allow(clippy::integer_arithmetic)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::arithmetic_side_effects` lint. + // module-wide `clippy::integer_arithmetic` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; diff --git a/node/src/components/consensus/protocols/highway/participation.rs b/node/src/components/consensus/protocols/highway/participation.rs index bfb41394f0..a7c6fa6d45 100644 --- a/node/src/components/consensus/protocols/highway/participation.rs +++ b/node/src/components/consensus/protocols/highway/participation.rs @@ -65,7 +65,7 @@ where impl Participation { /// Creates a new `Participation` map, showing validators seen as faulty or inactive by the /// Highway instance. - #[allow(clippy::arithmetic_side_effects)] // We use u128 to prevent overflows in weight calculation. + #[allow(clippy::integer_arithmetic)] // We use u128 to prevent overflows in weight calculation. pub(crate) fn new(highway: &Highway) -> Self { let now = Timestamp::now(); let state = highway.state(); diff --git a/node/src/components/consensus/protocols/highway/round_success_meter.rs b/node/src/components/consensus/protocols/highway/round_success_meter.rs index 9b24bd2dc6..938bf4dbeb 100644 --- a/node/src/components/consensus/protocols/highway/round_success_meter.rs +++ b/node/src/components/consensus/protocols/highway/round_success_meter.rs @@ -60,7 +60,7 @@ impl RoundSuccessMeter { fn check_proposals_success(&self, state: &State, proposal_h: &C::Hash) -> bool { let total_w = state.total_weight(); - #[allow(clippy::arithmetic_side_effects)] // FTT is less than 100%, so this can't overflow. + #[allow(clippy::integer_arithmetic)] // FTT is less than 100%, so this can't overflow. let finality_detector = FinalityDetector::::new(max( Weight( (u128::from(total_w) * *self.config.acceleration_ftt.numer() as u128 @@ -185,7 +185,7 @@ impl RoundSuccessMeter { pub(super) fn new_length(&self) -> TimeDiff { let current_round_index = round_index(self.current_round_id, self.current_round_len); let num_failures = self.count_failures() as u64; - #[allow(clippy::arithmetic_side_effects)] // The acceleration_parameter is not zero. + #[allow(clippy::integer_arithmetic)] // The acceleration_parameter is not zero. if num_failures > self.config.max_failed_rounds() && self.current_round_len * 2 <= self.max_round_len { @@ -204,7 +204,7 @@ impl RoundSuccessMeter { } /// Returns the round index `i`, if `r_id` is the ID of the `i`-th round after the epoch. -#[allow(clippy::arithmetic_side_effects)] // Checking for division by 0. +#[allow(clippy::integer_arithmetic)] // Checking for division by 0. fn round_index(r_id: Timestamp, round_len: TimeDiff) -> u64 { if round_len.millis() == 0 { error!("called round_index with round_len 0."); diff --git a/node/src/components/consensus/protocols/highway/tests.rs b/node/src/components/consensus/protocols/highway/tests.rs index aff5aa2b71..cfeee9e653 100644 --- a/node/src/components/consensus/protocols/highway/tests.rs +++ b/node/src/components/consensus/protocols/highway/tests.rs @@ -33,7 +33,7 @@ where I: IntoIterator, T: Into, { - #[allow(clippy::arithmetic_side_effects)] // Left shift with small enough constants. + #[allow(clippy::integer_arithmetic)] // Left shift with small enough constants. let params = state::Params::new( seed, highway_testing::TEST_BLOCK_REWARD, diff --git a/node/src/components/consensus/protocols/zug/des_testing.rs b/node/src/components/consensus/protocols/zug/des_testing.rs index 5c8b114e6f..826ed0879f 100644 --- a/node/src/components/consensus/protocols/zug/des_testing.rs +++ b/node/src/components/consensus/protocols/zug/des_testing.rs @@ -1,4 +1,4 @@ -#![allow(clippy::arithmetic_side_effects)] // In tests, overflows panic anyway. +#![allow(clippy::integer_arithmetic)] // In tests, overflows panic anyway. use std::{ collections::{hash_map::DefaultHasher, HashMap, VecDeque}, diff --git a/node/src/components/consensus/protocols/zug/message.rs b/node/src/components/consensus/protocols/zug/message.rs index 8fd0fcf1c9..53bfd84e49 100644 --- a/node/src/components/consensus/protocols/zug/message.rs +++ b/node/src/components/consensus/protocols/zug/message.rs @@ -14,10 +14,10 @@ use crate::{ utils::ds, }; -#[allow(clippy::arithmetic_side_effects)] +#[allow(clippy::integer_arithmetic)] mod relaxed { // This module exists solely to exempt the `EnumDiscriminants` macro generated code from the - // module-wide `clippy::arithmetic_side_effects` lint. + // module-wide `clippy::integer_arithmetic` lint. use datasize::DataSize; use serde::{Deserialize, Serialize}; diff --git a/node/src/components/consensus/utils/weight.rs b/node/src/components/consensus/utils/weight.rs index 4761054ff9..eb938d9816 100644 --- a/node/src/components/consensus/utils/weight.rs +++ b/node/src/components/consensus/utils/weight.rs @@ -54,7 +54,7 @@ impl<'a> Sum<&'a Weight> for Weight { impl Mul for Weight { type Output = Self; - #[allow(clippy::arithmetic_side_effects)] // The caller needs to prevent overflows. + #[allow(clippy::integer_arithmetic)] // The caller needs to prevent overflows. fn mul(self, rhs: u64) -> Self { Weight(self.0 * rhs) } @@ -63,7 +63,7 @@ impl Mul for Weight { impl Div for Weight { type Output = Self; - #[allow(clippy::arithmetic_side_effects)] // The caller needs to avoid dividing by zero. + #[allow(clippy::integer_arithmetic)] // The caller needs to avoid dividing by zero. fn div(self, rhs: u64) -> Self { Weight(self.0 / rhs) } diff --git a/types/src/access_rights.rs b/types/src/access_rights.rs index 714c221e75..5593da98d0 100644 --- a/types/src/access_rights.rs +++ b/types/src/access_rights.rs @@ -21,7 +21,7 @@ pub const ACCESS_RIGHTS_SERIALIZED_LENGTH: usize = 1; bitflags! { /// A struct which behaves like a set of bitflags to define access rights associated with a /// [`URef`](crate::URef). - #[allow(clippy::derived_hash_with_manual_eq)] + #[allow(clippy::derive_hash_xor_eq)] #[cfg_attr(feature = "datasize", derive(DataSize))] pub struct AccessRights: u8 { /// No permissions diff --git a/types/src/crypto/asymmetric_key.rs b/types/src/crypto/asymmetric_key.rs index 71ca189ed3..c340ffad33 100644 --- a/types/src/crypto/asymmetric_key.rs +++ b/types/src/crypto/asymmetric_key.rs @@ -757,7 +757,7 @@ impl Ord for PublicKey { // This implementation of `Hash` agrees with the derived `PartialEq`. It's required since // `ed25519_dalek::PublicKey` doesn't implement `Hash`. -#[allow(clippy::derived_hash_with_manual_eq)] +#[allow(clippy::derive_hash_xor_eq)] impl Hash for PublicKey { fn hash(&self, state: &mut H) { self.tag().hash(state); diff --git a/types/src/era_id.rs b/types/src/era_id.rs index 37bd86be8f..9fe3d98c3c 100644 --- a/types/src/era_id.rs +++ b/types/src/era_id.rs @@ -128,7 +128,7 @@ impl FromStr for EraId { impl Add for EraId { type Output = EraId; - #[allow(clippy::arithmetic_side_effects)] // The caller must make sure this doesn't overflow. + #[allow(clippy::integer_arithmetic)] // The caller must make sure this doesn't overflow. fn add(self, x: u64) -> EraId { EraId::from(self.0 + x) } @@ -143,7 +143,7 @@ impl AddAssign for EraId { impl Sub for EraId { type Output = EraId; - #[allow(clippy::arithmetic_side_effects)] // The caller must make sure this doesn't overflow. + #[allow(clippy::integer_arithmetic)] // The caller must make sure this doesn't overflow. fn sub(self, x: u64) -> EraId { EraId::from(self.0 - x) } From e401d55264a68b4b1cfe127e3bb30c0b65d0ab1c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 14:53:07 +0200 Subject: [PATCH 654/735] Fix `execution_engine` and test related import issues stemming from `dev` merge --- .../src/test/system_contracts/auction/bids.rs | 17 ++++++++++------- node/src/components/network.rs | 3 --- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index cebecc8cca..d1493b8392 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -5,10 +5,11 @@ use num_traits::{One, Zero}; use once_cell::sync::Lazy; use casper_engine_test_support::{ - ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, UpgradeRequestBuilder, - DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, DEFAULT_AUCTION_DELAY, - DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, DEFAULT_GENESIS_CONFIG_HASH, - DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PROTOCOL_VERSION, + utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, + UpgradeRequestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, + DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, + DEFAULT_GENESIS_CONFIG_HASH, DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, + DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, DEFAULT_PROTOCOL_VERSION, DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, PRODUCTION_RUN_GENESIS_REQUEST, SYSTEM_ADDR, TIMESTAMP_MILLIS_INCREMENT, @@ -17,14 +18,15 @@ use casper_execution_engine::{ core::{ engine_state::{ self, - engine_config::DEFAULT_MINIMUM_DELEGATION_AMOUNT, + engine_config::{DEFAULT_MINIMUM_DELEGATION_AMOUNT, DEFAULT_STRICT_ARGUMENT_CHECKING}, genesis::{ExecConfigBuilder, GenesisAccount, GenesisValidator}, run_genesis_request::RunGenesisRequest, - EngineConfigBuilder, Error, RewardItem, + EngineConfig, EngineConfigBuilder, Error, ExecConfig, RewardItem, + DEFAULT_MAX_QUERY_DEPTH, }, execution, }, - shared::{system_config::SystemConfig, transform::Transform, wasm_config::WasmConfig}, + shared::transform::Transform, storage::global_state::in_memory::InMemoryGlobalState, }; use casper_types::{ @@ -2516,6 +2518,7 @@ fn should_release_vfta_holder_stake() { (DELEGATOR_1_STAKE - DEFAULT_MINIMUM_DELEGATION_AMOUNT) / 14; const DELEGATOR_VFTA_STAKE: u64 = DELEGATOR_1_STAKE - DEFAULT_MINIMUM_DELEGATION_AMOUNT; const EXPECTED_REMAINDER: u64 = 12; + const NEW_MINIMUM_DELEGATION_AMOUNT: u64 = 0; const EXPECTED_LOCKED_AMOUNTS: [u64; 14] = [ 1392858, 1285716, 1178574, 1071432, 964290, 857148, 750006, 642864, 535722, 428580, 321438, 214296, 107154, 0, diff --git a/node/src/components/network.rs b/node/src/components/network.rs index ce65f6ad89..411fcdab28 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -45,7 +45,6 @@ mod transport; use std::{ collections::{hash_map::Entry, BTreeMap, HashMap, HashSet}, - convert::TryInto, fmt::{self, Debug, Display, Formatter}, fs::OpenOptions, marker::PhantomData, @@ -57,7 +56,6 @@ use std::{ time::{Duration, Instant}, }; -use array_init::array_init; use bincode::Options; use bytes::Bytes; use datasize::DataSize; @@ -75,7 +73,6 @@ use strum::EnumCount; use tokio::{ io::{ReadHalf, WriteHalf}, net::TcpStream, - sync::mpsc::{self, UnboundedReceiver, UnboundedSender}, task::JoinHandle, }; use tokio_openssl::SslStream; From 8202dc99a4b347c729e86356b1ac4c19ce52e0b2 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 14:54:45 +0200 Subject: [PATCH 655/735] Allow use of deprecated API (`ExecConfig::new`) in tests --- execution_engine_testing/tests/src/test/regression/gov_116.rs | 1 + .../tests/src/test/system_contracts/auction/bids.rs | 2 ++ 2 files changed, 3 insertions(+) diff --git a/execution_engine_testing/tests/src/test/regression/gov_116.rs b/execution_engine_testing/tests/src/test/regression/gov_116.rs index 9d92bb7153..a638172371 100644 --- a/execution_engine_testing/tests/src/test/regression/gov_116.rs +++ b/execution_engine_testing/tests/src/test/regression/gov_116.rs @@ -245,6 +245,7 @@ fn should_not_retain_genesis_validator_slot_protection_after_vesting_period_elap #[ignore] #[test] +#[allow(deprecated)] fn should_retain_genesis_validator_slot_protection() { const CASPER_VESTING_SCHEDULE_PERIOD_MILLIS: u64 = 91 * DAY_MILLIS; const CASPER_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * DAY_MILLIS; diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index d1493b8392..d63aa3250e 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -174,6 +174,7 @@ const DAY_MILLIS: u64 = 24 * 60 * 60 * 1000; const CASPER_VESTING_SCHEDULE_PERIOD_MILLIS: u64 = 91 * DAY_MILLIS; const CASPER_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * DAY_MILLIS; +#[allow(deprecated)] fn setup(accounts: Vec) -> InMemoryWasmTestBuilder { let engine_config = EngineConfig::new( DEFAULT_MAX_QUERY_DEPTH, @@ -197,6 +198,7 @@ fn setup(accounts: Vec) -> InMemoryWasmTestBuilder { let round_seigniorage_rate = DEFAULT_ROUND_SEIGNIORAGE_RATE; let unbonding_delay = DEFAULT_UNBONDING_DELAY; let genesis_timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS; + #[allow(deprecated)] ExecConfig::new( accounts, wasm_config, From 59cbf31f80abd81f38427bbfe1b32fbccf5d9404 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 29 Aug 2023 14:59:35 +0200 Subject: [PATCH 656/735] Go back to rustc `1.67.1` on stable --- rust-toolchain.toml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/rust-toolchain.toml b/rust-toolchain.toml index aa464261d8..588ffd5788 100644 --- a/rust-toolchain.toml +++ b/rust-toolchain.toml @@ -1,2 +1,2 @@ [toolchain] -channel = "1.71.0" +channel = "1.67.1" From 3c9b044c065cfb6f1b20e962785d66f330a2bbfa Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 13:40:11 +0200 Subject: [PATCH 657/735] juliet: Make `IncomingRequest` a `#[must_use]` --- juliet/src/rpc.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index abf9d5263f..4b8c04af7b 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -519,6 +519,7 @@ impl Drop for RequestGuard { /// If dropped, [`IncomingRequest::cancel()`] is called automatically, which will cause a /// cancellation to be sent. #[derive(Debug)] +#[must_use] pub struct IncomingRequest { /// Channel the request was sent on. channel: ChannelId, From 579563b1760dbcbe75903c619261db2d3918fe52 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 13:40:52 +0200 Subject: [PATCH 658/735] Rename `respond_after_queuing` to `respond_early` to avoid confusion in networking message sending --- node/src/components/in_memory_network.rs | 2 +- node/src/components/network.rs | 4 ++-- node/src/effect.rs | 4 ++-- node/src/effect/requests.rs | 6 +++--- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/node/src/components/in_memory_network.rs b/node/src/components/in_memory_network.rs index db6bd3be96..f0f64130c3 100644 --- a/node/src/components/in_memory_network.rs +++ b/node/src/components/in_memory_network.rs @@ -537,7 +537,7 @@ where NetworkRequest::SendMessage { dest, payload, - respond_after_queueing: _, + respond_early: _, auto_closing_responder, } => { if *dest == self.node_id { diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 411fcdab28..c2b8ad001e 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -894,14 +894,14 @@ where NetworkRequest::SendMessage { dest, payload, - respond_after_queueing, + respond_early, auto_closing_responder, } => { // We're given a message to send. Pass on the responder so that confirmation // can later be given once the message has actually been buffered. self.net_metrics.direct_message_requests.inc(); - if respond_after_queueing { + if respond_early { self.send_message(*dest, Arc::new(Message::Payload(*payload)), None); auto_closing_responder.respond(()).ignore() } else { diff --git a/node/src/effect.rs b/node/src/effect.rs index 5fe4df5caa..133a6ec787 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -679,7 +679,7 @@ impl EffectBuilder { |responder| NetworkRequest::SendMessage { dest: Box::new(dest), payload: Box::new(payload), - respond_after_queueing: false, + respond_early: false, auto_closing_responder: AutoClosingResponder::from_opt_responder(responder), }, QueueKind::Network, @@ -699,7 +699,7 @@ impl EffectBuilder { |responder| NetworkRequest::SendMessage { dest: Box::new(dest), payload: Box::new(payload), - respond_after_queueing: true, + respond_early: true, auto_closing_responder: AutoClosingResponder::from_opt_responder(responder), }, QueueKind::Network, diff --git a/node/src/effect/requests.rs b/node/src/effect/requests.rs index 994caa63bc..16095cff02 100644 --- a/node/src/effect/requests.rs +++ b/node/src/effect/requests.rs @@ -99,7 +99,7 @@ pub(crate) enum NetworkRequest

{ payload: Box

, /// If `true`, the responder will be called early after the message has been queued, not /// waiting until it has passed to the kernel. - respond_after_queueing: bool, + respond_early: bool, /// Responder to be called when the message has been *buffered for sending*. #[serde(skip_serializing)] auto_closing_responder: AutoClosingResponder<()>, @@ -143,12 +143,12 @@ impl

NetworkRequest

{ NetworkRequest::SendMessage { dest, payload, - respond_after_queueing, + respond_early, auto_closing_responder, } => NetworkRequest::SendMessage { dest, payload: Box::new(wrap_payload(*payload)), - respond_after_queueing, + respond_early, auto_closing_responder, }, NetworkRequest::ValidatorBroadcast { From 553f311271c18496a7ad9aa945a82611c34fd13d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 13:41:20 +0200 Subject: [PATCH 659/735] Fix issue where `Responder::respond` return values were not sent to peers --- node/src/components/network.rs | 2 +- node/src/effect.rs | 11 +++++++---- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index c2b8ad001e..097e19cb99 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -1007,7 +1007,7 @@ where span: Span, ) -> Effects> where - REv: FromIncoming

+ From, + REv: FromIncoming

+ From> + From, { // Note: For non-payload channels, we drop the `Ticket` implicitly at end of scope. span.in_scope(|| match msg { diff --git a/node/src/effect.rs b/node/src/effect.rs index 133a6ec787..21fd99a328 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -809,15 +809,18 @@ impl EffectBuilder { /// Announces an incoming network message. pub(crate) async fn announce_incoming

(self, sender: NodeId, payload: P, ticket: Ticket) where - REv: FromIncoming

+ Send, - P: 'static, + REv: FromIncoming

+ From> + Send, + P: 'static + Send, { // TODO: Remove demands entirely as they are no longer needed with tickets. let reactor_event = match >::try_demand_from_incoming(self, sender, payload) { Ok((rev, demand_has_been_satisfied)) => { tokio::spawn(async move { - demand_has_been_satisfied.await; + if let Some(answer) = demand_has_been_satisfied.await { + self.send_message(sender, answer).await; + } + drop(ticket); }); rev @@ -826,7 +829,7 @@ impl EffectBuilder { }; self.event_queue - .schedule(reactor_event, QueueKind::MessageIncoming) + .schedule::(reactor_event, QueueKind::MessageIncoming) .await } From a4b8a665da1cf4c02fed7debd7fb591c45cf112e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 13:41:39 +0200 Subject: [PATCH 660/735] Set more sane timeouts for test `historical_sync_with_era_height_1` --- node/src/reactor/main_reactor/tests.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index 0f9438716b..2c5972e2f8 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -416,7 +416,7 @@ async fn historical_sync_with_era_height_1() { net.settle_on( &mut rng, is_in_era(EraId::from(3)), - Duration::from_secs(1000), + Duration::from_secs(180), ) .await; @@ -465,7 +465,7 @@ async fn historical_sync_with_era_height_1() { net.settle_on( &mut rng, node_has_lowest_available_block_at_or_below_height(1, joiner_id), - Duration::from_secs(1000), + Duration::from_secs(180), ) .await; From a6bda33abf965338088673564f2c18a785e07a8b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 14:53:06 +0200 Subject: [PATCH 661/735] Fix safety check in `connection_id` module that checked `server_random` twice, instead of `client_random` --- node/src/components/network/connection_id.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/components/network/connection_id.rs b/node/src/components/network/connection_id.rs index b09cdcf306..c09a420a1a 100644 --- a/node/src/components/network/connection_id.rs +++ b/node/src/components/network/connection_id.rs @@ -84,7 +84,7 @@ impl TlsRandomData { ssl.client_random(&mut client_random); - if server_random == ZERO_RANDOMNESS { + if client_random == ZERO_RANDOMNESS { warn!("TLS client random is all zeros"); } From 00c58795f93ac92d3d1f8b1cccf8afbf317c3685 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 16:00:37 +0200 Subject: [PATCH 662/735] Fix failing 1.5 metrics test --- node/src/components.rs | 2 +- node/src/dead_metrics.rs | 42 ++++++++++++++++++++++++++++++++ node/src/lib.rs | 1 + node/src/reactor/main_reactor.rs | 6 +++++ 4 files changed, 50 insertions(+), 1 deletion(-) create mode 100644 node/src/dead_metrics.rs diff --git a/node/src/components.rs b/node/src/components.rs index 17c0fbf08a..d9e0ff5074 100644 --- a/node/src/components.rs +++ b/node/src/components.rs @@ -182,7 +182,7 @@ pub(crate) trait PortBoundComponent: InitializedComponent { } match self.listen(effect_builder) { - Ok(effects) => (effects, ComponentState::Initialized), + Ok(effects) => (effects, ComponentState::Initializing), Err(error) => (Effects::new(), ComponentState::Fatal(format!("{}", error))), } } diff --git a/node/src/dead_metrics.rs b/node/src/dead_metrics.rs new file mode 100644 index 0000000000..0ece6a7451 --- /dev/null +++ b/node/src/dead_metrics.rs @@ -0,0 +1,42 @@ +//! This file contains metrics that have been retired, but are kept around for now to avoid breaking +//! changes to downstream consumers of said metrics. + +use prometheus::{IntCounter, Registry}; + +use crate::utils::registered_metric::{RegisteredMetric, RegistryExt}; + +/// Metrics that are never updated. +#[derive(Debug)] +#[allow(dead_code)] +pub(super) struct DeadMetrics { + scheduler_queue_network_low_priority_count: RegisteredMetric, + scheduler_queue_network_demands_count: RegisteredMetric, + accumulated_incoming_limiter_delay: RegisteredMetric, + scheduler_queue_network_incoming_count: RegisteredMetric, +} + +impl DeadMetrics { + /// Creates a new instance of the dead metrics. + pub(super) fn new(registry: &Registry) -> Result { + let scheduler_queue_network_low_priority_count = registry.new_int_counter( + "scheduler_queue_network_low_priority_count", + "retired metric", + )?; + + let scheduler_queue_network_demands_count = + registry.new_int_counter("scheduler_queue_network_demands_count", "retired metric")?; + + let accumulated_incoming_limiter_delay = + registry.new_int_counter("accumulated_incoming_limiter_delay", "retired metric")?; + + let scheduler_queue_network_incoming_count = + registry.new_int_counter("scheduler_queue_network_incoming_count", "retired metric")?; + + Ok(DeadMetrics { + scheduler_queue_network_low_priority_count, + scheduler_queue_network_demands_count, + accumulated_incoming_limiter_delay, + scheduler_queue_network_incoming_count, + }) + } +} diff --git a/node/src/lib.rs b/node/src/lib.rs index d7938250d1..8b0c956590 100644 --- a/node/src/lib.rs +++ b/node/src/lib.rs @@ -26,6 +26,7 @@ pub mod cli; pub(crate) mod components; mod config_migration; mod data_migration; +mod dead_metrics; pub(crate) mod effect; pub mod logging; pub(crate) mod protocol; diff --git a/node/src/reactor/main_reactor.rs b/node/src/reactor/main_reactor.rs index 43c4c13c30..4d22baf867 100644 --- a/node/src/reactor/main_reactor.rs +++ b/node/src/reactor/main_reactor.rs @@ -49,6 +49,7 @@ use crate::{ upgrade_watcher::{self, UpgradeWatcher}, Component, ValidatorBoundComponent, }, + dead_metrics::DeadMetrics, effect::{ announcements::{ BlockAccumulatorAnnouncement, ConsensusAnnouncement, ContractRuntimeAnnouncement, @@ -173,6 +174,9 @@ pub(crate) struct MainReactor { memory_metrics: MemoryMetrics, #[data_size(skip)] event_queue_metrics: EventQueueMetrics, + #[data_size(skip)] + #[allow(dead_code)] + dead_metrics: DeadMetrics, // ambient settings / data / load-bearing config validator_matrix: ValidatorMatrix, @@ -1005,6 +1009,7 @@ impl reactor::Reactor for MainReactor { let metrics = Metrics::new(registry.clone()); let memory_metrics = MemoryMetrics::new(registry.clone())?; let event_queue_metrics = EventQueueMetrics::new(registry.clone(), event_queue)?; + let dead_metrics = DeadMetrics::new(®istry)?; let protocol_version = chainspec.protocol_config.version; @@ -1191,6 +1196,7 @@ impl reactor::Reactor for MainReactor { metrics, memory_metrics, event_queue_metrics, + dead_metrics, state: ReactorState::Initialize {}, attempts: 0, From ff1b7d520cab0c54cebd9c715dc1b8c6cb787239 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 30 Aug 2023 16:08:09 +0200 Subject: [PATCH 663/735] Fix clippy lints --- node/src/reactor/main_reactor.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/reactor/main_reactor.rs b/node/src/reactor/main_reactor.rs index 4d22baf867..fe5ab8f8ba 100644 --- a/node/src/reactor/main_reactor.rs +++ b/node/src/reactor/main_reactor.rs @@ -1009,7 +1009,7 @@ impl reactor::Reactor for MainReactor { let metrics = Metrics::new(registry.clone()); let memory_metrics = MemoryMetrics::new(registry.clone())?; let event_queue_metrics = EventQueueMetrics::new(registry.clone(), event_queue)?; - let dead_metrics = DeadMetrics::new(®istry)?; + let dead_metrics = DeadMetrics::new(registry)?; let protocol_version = chainspec.protocol_config.version; From f9abda50c3626d42919775c6bcf66850d0b3dad1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 31 Aug 2023 15:04:43 +0200 Subject: [PATCH 664/735] Fix failing tests due to merge conflicts --- .../src/core/engine_state/genesis.rs | 4 +-- .../src/test/system_contracts/auction/bids.rs | 32 +++++++++++++++---- 2 files changed, 28 insertions(+), 8 deletions(-) diff --git a/execution_engine/src/core/engine_state/genesis.rs b/execution_engine/src/core/engine_state/genesis.rs index 44936849c0..97869d0965 100644 --- a/execution_engine/src/core/engine_state/genesis.rs +++ b/execution_engine/src/core/engine_state/genesis.rs @@ -57,8 +57,8 @@ const DEFAULT_ADDRESS: [u8; 32] = [0; 32]; pub const DEFAULT_VALIDATOR_SLOTS: u32 = 5; /// Default auction delay. pub const DEFAULT_AUCTION_DELAY: u64 = 1; -/// Default lock-in period of 90 days -pub const DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * 24 * 60 * 60 * 1000; +/// Default lock-in period is currently zero. +pub const DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 0; /// Default number of eras that need to pass to be able to withdraw unbonded funds. pub const DEFAULT_UNBONDING_DELAY: u64 = 7; /// Default round seigniorage rate represented as a fractional number. diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index d63aa3250e..ce93f0403d 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -5,10 +5,10 @@ use num_traits::{One, Zero}; use once_cell::sync::Lazy; use casper_engine_test_support::{ - utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, - UpgradeRequestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, - DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, - DEFAULT_GENESIS_CONFIG_HASH, DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, + ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, UpgradeRequestBuilder, + DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, DEFAULT_AUCTION_DELAY, + DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, DEFAULT_GENESIS_CONFIG_HASH, + DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, DEFAULT_PROTOCOL_VERSION, DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, @@ -735,6 +735,7 @@ fn should_get_first_seigniorage_recipients() { let exec_config = ExecConfigBuilder::new() .with_accounts(accounts) .with_auction_delay(auction_delay) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) .build(); let run_genesis_request = RunGenesisRequest::new( *DEFAULT_GENESIS_CONFIG_HASH, @@ -743,7 +744,13 @@ fn should_get_first_seigniorage_recipients() { DEFAULT_CHAINSPEC_REGISTRY.clone(), ); - let mut builder = InMemoryWasmTestBuilder::default(); + let custom_engine_config = EngineConfigBuilder::default() + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) + .build(); + + let global_state = InMemoryGlobalState::empty().expect("should create global state"); + + let mut builder = InMemoryWasmTestBuilder::new(global_state, custom_engine_config, None); builder.run_genesis(&run_genesis_request); @@ -2604,10 +2611,23 @@ fn should_release_vfta_holder_stake() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); + let run_genesis_request = { + let exec_config = ExecConfigBuilder::default() + .with_accounts(accounts) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) + .build(); + + RunGenesisRequest::new( + *DEFAULT_GENESIS_CONFIG_HASH, + *DEFAULT_PROTOCOL_VERSION, + exec_config, + DEFAULT_CHAINSPEC_REGISTRY.clone(), + ) + }; let custom_engine_config = EngineConfigBuilder::default() .with_minimum_delegation_amount(NEW_MINIMUM_DELEGATION_AMOUNT) + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) .build(); let global_state = InMemoryGlobalState::empty().expect("should create global state"); From 7847cf337c99050e55bb55dc2ac98ae05c33b4c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 31 Aug 2023 15:04:43 +0200 Subject: [PATCH 665/735] Fix failing tests due to merge conflicts --- .../src/core/engine_state/genesis.rs | 4 +-- .../src/test/system_contracts/auction/bids.rs | 32 +++++++++++++++---- 2 files changed, 28 insertions(+), 8 deletions(-) diff --git a/execution_engine/src/core/engine_state/genesis.rs b/execution_engine/src/core/engine_state/genesis.rs index 44936849c0..97869d0965 100644 --- a/execution_engine/src/core/engine_state/genesis.rs +++ b/execution_engine/src/core/engine_state/genesis.rs @@ -57,8 +57,8 @@ const DEFAULT_ADDRESS: [u8; 32] = [0; 32]; pub const DEFAULT_VALIDATOR_SLOTS: u32 = 5; /// Default auction delay. pub const DEFAULT_AUCTION_DELAY: u64 = 1; -/// Default lock-in period of 90 days -pub const DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 90 * 24 * 60 * 60 * 1000; +/// Default lock-in period is currently zero. +pub const DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS: u64 = 0; /// Default number of eras that need to pass to be able to withdraw unbonded funds. pub const DEFAULT_UNBONDING_DELAY: u64 = 7; /// Default round seigniorage rate represented as a fractional number. diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index d63aa3250e..ce93f0403d 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -5,10 +5,10 @@ use num_traits::{One, Zero}; use once_cell::sync::Lazy; use casper_engine_test_support::{ - utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, - UpgradeRequestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, - DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, - DEFAULT_GENESIS_CONFIG_HASH, DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, + ExecuteRequestBuilder, InMemoryWasmTestBuilder, StepRequestBuilder, UpgradeRequestBuilder, + DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, DEFAULT_ACCOUNT_INITIAL_BALANCE, DEFAULT_AUCTION_DELAY, + DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_EXEC_CONFIG, DEFAULT_GENESIS_CONFIG_HASH, + DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, DEFAULT_PROTOCOL_VERSION, DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, @@ -735,6 +735,7 @@ fn should_get_first_seigniorage_recipients() { let exec_config = ExecConfigBuilder::new() .with_accounts(accounts) .with_auction_delay(auction_delay) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) .build(); let run_genesis_request = RunGenesisRequest::new( *DEFAULT_GENESIS_CONFIG_HASH, @@ -743,7 +744,13 @@ fn should_get_first_seigniorage_recipients() { DEFAULT_CHAINSPEC_REGISTRY.clone(), ); - let mut builder = InMemoryWasmTestBuilder::default(); + let custom_engine_config = EngineConfigBuilder::default() + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) + .build(); + + let global_state = InMemoryGlobalState::empty().expect("should create global state"); + + let mut builder = InMemoryWasmTestBuilder::new(global_state, custom_engine_config, None); builder.run_genesis(&run_genesis_request); @@ -2604,10 +2611,23 @@ fn should_release_vfta_holder_stake() { tmp }; - let run_genesis_request = utils::create_run_genesis_request(accounts); + let run_genesis_request = { + let exec_config = ExecConfigBuilder::default() + .with_accounts(accounts) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) + .build(); + + RunGenesisRequest::new( + *DEFAULT_GENESIS_CONFIG_HASH, + *DEFAULT_PROTOCOL_VERSION, + exec_config, + DEFAULT_CHAINSPEC_REGISTRY.clone(), + ) + }; let custom_engine_config = EngineConfigBuilder::default() .with_minimum_delegation_amount(NEW_MINIMUM_DELEGATION_AMOUNT) + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) .build(); let global_state = InMemoryGlobalState::empty().expect("should create global state"); From fb8984d267fb79b5b131cf1f994cf8518df32b6d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Thu, 31 Aug 2023 15:26:01 +0200 Subject: [PATCH 666/735] Cherry pick PR #4258 onto feat-1.6 --- execution_engine/src/core/engine_state/mod.rs | 78 ++++++------------- .../tests/src/test/regression/gov_116.rs | 53 +++---------- .../src/test/system_contracts/auction/bids.rs | 64 +++++++++++++-- 3 files changed, 95 insertions(+), 100 deletions(-) diff --git a/execution_engine/src/core/engine_state/mod.rs b/execution_engine/src/core/engine_state/mod.rs index fef0a24383..4efc774e09 100644 --- a/execution_engine/src/core/engine_state/mod.rs +++ b/execution_engine/src/core/engine_state/mod.rs @@ -743,7 +743,7 @@ where Err(error) => return Ok(ExecutionResult::precondition_failure(error)), }; - let proposer_main_purse_balance_key = { + let rewards_target_purse_balance_key = { match tracking_copy .borrow_mut() .get_purse_balance_key(correlation_id, rewards_target_purse.into()) @@ -786,7 +786,7 @@ where account_main_purse_balance, wasmless_transfer_gas_cost, account_main_purse_balance_key, - proposer_main_purse_balance_key, + rewards_target_purse_balance_key, ) { Ok(execution_result) => execution_result, Err(error) => ExecutionResult::precondition_failure(error), @@ -1344,6 +1344,26 @@ where } }; + let rewards_target_purse = + match self.get_rewards_purse(correlation_id, proposer, prestate_hash) { + Ok(target_purse) => target_purse, + Err(error) => return Ok(ExecutionResult::precondition_failure(error)), + }; + + let rewards_target_purse_balance_key = { + // Get reward purse Key from handle payment contract + // payment_code_spec_6: system contract validity + match tracking_copy + .borrow_mut() + .get_purse_balance_key(correlation_id, rewards_target_purse.into()) + { + Ok(key) => key, + Err(error) => { + return Ok(ExecutionResult::precondition_failure(error.into())); + } + } + }; + // [`ExecutionResultBuilder`] handles merging of multiple execution results let mut execution_result_builder = execution_result::ExecutionResultBuilder::new(); @@ -1428,34 +1448,6 @@ where }; log_execution_result("payment result", &payment_result); - // the proposer of the block this deploy is in receives the gas from this deploy execution - let proposer_purse = { - let proposer_account: Account = match tracking_copy - .borrow_mut() - .get_account(correlation_id, AccountHash::from(&proposer)) - { - Ok(account) => account, - Err(error) => { - return Ok(ExecutionResult::precondition_failure(error.into())); - } - }; - proposer_account.main_purse() - }; - - let proposer_main_purse_balance_key = { - // Get reward purse Key from handle payment contract - // payment_code_spec_6: system contract validity - match tracking_copy - .borrow_mut() - .get_purse_balance_key(correlation_id, proposer_purse.into()) - { - Ok(key) => key, - Err(error) => { - return Ok(ExecutionResult::precondition_failure(error.into())); - } - } - }; - // If provided wasm file was malformed, we should charge. if should_charge_for_errors_in_wasm(&payment_result) { let error = payment_result @@ -1469,7 +1461,7 @@ where account_main_purse_balance, payment_result.cost(), account_main_purse_balance_key, - proposer_main_purse_balance_key, + rewards_target_purse_balance_key, ) { Ok(execution_result) => return Ok(execution_result), Err(error) => return Ok(ExecutionResult::precondition_failure(error)), @@ -1492,26 +1484,6 @@ where } }; - let rewards_target_purse = - match self.get_rewards_purse(correlation_id, proposer, prestate_hash) { - Ok(target_purse) => target_purse, - Err(error) => return Ok(ExecutionResult::precondition_failure(error)), - }; - - let proposer_main_purse_balance_key = { - // Get reward purse Key from handle payment contract - // payment_code_spec_6: system contract validity - match tracking_copy - .borrow_mut() - .get_purse_balance_key(correlation_id, rewards_target_purse.into()) - { - Ok(key) => key, - Err(error) => { - return Ok(ExecutionResult::precondition_failure(error.into())); - } - } - }; - if let Some(forced_transfer) = payment_result.check_forced_transfer(payment_purse_balance, deploy_item.gas_price) { @@ -1540,7 +1512,7 @@ where account_main_purse_balance, gas_cost, account_main_purse_balance_key, - proposer_main_purse_balance_key, + rewards_target_purse_balance_key, ) { Ok(execution_result) => return Ok(execution_result), Err(error) => return Ok(ExecutionResult::precondition_failure(error)), @@ -1635,7 +1607,7 @@ where account_main_purse_balance, session_result.cost(), account_main_purse_balance_key, - proposer_main_purse_balance_key, + rewards_target_purse_balance_key, ) { Ok(execution_result) => return Ok(execution_result), Err(error) => return Ok(ExecutionResult::precondition_failure(error)), diff --git a/execution_engine_testing/tests/src/test/regression/gov_116.rs b/execution_engine_testing/tests/src/test/regression/gov_116.rs index a638172371..0e5eb26a08 100644 --- a/execution_engine_testing/tests/src/test/regression/gov_116.rs +++ b/execution_engine_testing/tests/src/test/regression/gov_116.rs @@ -5,17 +5,13 @@ use once_cell::sync::Lazy; use casper_engine_test_support::{ utils, ExecuteRequestBuilder, InMemoryWasmTestBuilder, DEFAULT_ACCOUNTS, DEFAULT_ACCOUNT_ADDR, - DEFAULT_ACCOUNT_PUBLIC_KEY, DEFAULT_AUCTION_DELAY, DEFAULT_CHAINSPEC_REGISTRY, - DEFAULT_GENESIS_CONFIG_HASH, DEFAULT_GENESIS_TIMESTAMP_MILLIS, - DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_MAX_ASSOCIATED_KEYS, DEFAULT_PROTOCOL_VERSION, - DEFAULT_ROUND_SEIGNIORAGE_RATE, DEFAULT_SYSTEM_CONFIG, DEFAULT_UNBONDING_DELAY, - DEFAULT_VALIDATOR_SLOTS, DEFAULT_WASM_CONFIG, MINIMUM_ACCOUNT_CREATION_BALANCE, + DEFAULT_ACCOUNT_PUBLIC_KEY, DEFAULT_CHAINSPEC_REGISTRY, DEFAULT_GENESIS_CONFIG_HASH, + DEFAULT_GENESIS_TIMESTAMP_MILLIS, DEFAULT_LOCKED_FUNDS_PERIOD_MILLIS, DEFAULT_PROTOCOL_VERSION, + DEFAULT_VALIDATOR_SLOTS, MINIMUM_ACCOUNT_CREATION_BALANCE, }; use casper_execution_engine::core::engine_state::{ - engine_config::{DEFAULT_MINIMUM_DELEGATION_AMOUNT, DEFAULT_STRICT_ARGUMENT_CHECKING}, - genesis::GenesisValidator, - EngineConfig, ExecConfig, GenesisAccount, RunGenesisRequest, DEFAULT_MAX_QUERY_DEPTH, - DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, + genesis::{ExecConfigBuilder, GenesisValidator}, + EngineConfigBuilder, GenesisAccount, RunGenesisRequest, }; use casper_types::{ runtime_args, @@ -253,41 +249,16 @@ fn should_retain_genesis_validator_slot_protection() { DEFAULT_GENESIS_TIMESTAMP_MILLIS + CASPER_LOCKED_FUNDS_PERIOD_MILLIS; let mut builder = { - let engine_config = EngineConfig::new( - DEFAULT_MAX_QUERY_DEPTH, - DEFAULT_MAX_ASSOCIATED_KEYS, - DEFAULT_MAX_RUNTIME_CALL_STACK_HEIGHT, - DEFAULT_MINIMUM_DELEGATION_AMOUNT, - DEFAULT_STRICT_ARGUMENT_CHECKING, - CASPER_VESTING_SCHEDULE_PERIOD_MILLIS, - None, - *DEFAULT_WASM_CONFIG, - *DEFAULT_SYSTEM_CONFIG, - ); + let engine_config = EngineConfigBuilder::default() + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) + .build(); let run_genesis_request = { let accounts = GENESIS_ACCOUNTS.clone(); - let exec_config = { - let wasm_config = *DEFAULT_WASM_CONFIG; - let system_config = *DEFAULT_SYSTEM_CONFIG; - let validator_slots = DEFAULT_VALIDATOR_SLOTS; - let auction_delay = DEFAULT_AUCTION_DELAY; - let locked_funds_period_millis = CASPER_LOCKED_FUNDS_PERIOD_MILLIS; - let round_seigniorage_rate = DEFAULT_ROUND_SEIGNIORAGE_RATE; - let unbonding_delay = DEFAULT_UNBONDING_DELAY; - let genesis_timestamp_millis = DEFAULT_GENESIS_TIMESTAMP_MILLIS; - ExecConfig::new( - accounts, - wasm_config, - system_config, - validator_slots, - auction_delay, - locked_funds_period_millis, - round_seigniorage_rate, - unbonding_delay, - genesis_timestamp_millis, - ) - }; + let exec_config = ExecConfigBuilder::default() + .with_accounts(accounts) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) + .build(); RunGenesisRequest::new( *DEFAULT_GENESIS_CONFIG_HASH, diff --git a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs index ce93f0403d..df6487c2d0 100644 --- a/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs +++ b/execution_engine_testing/tests/src/test/system_contracts/auction/bids.rs @@ -737,6 +737,7 @@ fn should_get_first_seigniorage_recipients() { .with_auction_delay(auction_delay) .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) .build(); + let run_genesis_request = RunGenesisRequest::new( *DEFAULT_GENESIS_CONFIG_HASH, *DEFAULT_PROTOCOL_VERSION, @@ -827,6 +828,8 @@ fn should_get_first_seigniorage_recipients() { #[ignore] #[test] fn should_release_founder_stake() { + const NEW_MINIMUM_DELEGATION_AMOUNT: u64 = 0; + // ACCOUNT_1_BOND / 14 = 7_142 const EXPECTED_WEEKLY_RELEASE: u64 = 7_142; @@ -899,7 +902,30 @@ fn should_release_founder_stake() { tmp }; - let mut builder = setup(accounts); + let run_genesis_request = { + let exec_config = ExecConfigBuilder::default() + .with_accounts(accounts) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) + .build(); + + RunGenesisRequest::new( + *DEFAULT_GENESIS_CONFIG_HASH, + *DEFAULT_PROTOCOL_VERSION, + exec_config, + DEFAULT_CHAINSPEC_REGISTRY.clone(), + ) + }; + + let custom_engine_config = EngineConfigBuilder::default() + .with_minimum_delegation_amount(NEW_MINIMUM_DELEGATION_AMOUNT) + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) + .build(); + + let global_state = InMemoryGlobalState::empty().expect("should create global state"); + + let mut builder = InMemoryWasmTestBuilder::new(global_state, custom_engine_config, None); + + builder.run_genesis(&run_genesis_request); let fund_system_account = ExecuteRequestBuilder::standard( *DEFAULT_ACCOUNT_ADDR, @@ -2430,7 +2456,29 @@ fn should_not_undelegate_vfta_holder_stake() { tmp }; - let mut builder = setup(accounts); + let run_genesis_request = { + let exec_config = ExecConfigBuilder::default() + .with_accounts(accounts) + .with_locked_funds_period_millis(CASPER_LOCKED_FUNDS_PERIOD_MILLIS) + .build(); + + RunGenesisRequest::new( + *DEFAULT_GENESIS_CONFIG_HASH, + *DEFAULT_PROTOCOL_VERSION, + exec_config, + DEFAULT_CHAINSPEC_REGISTRY.clone(), + ) + }; + + let custom_engine_config = EngineConfigBuilder::default() + .with_vesting_schedule_period_millis(CASPER_VESTING_SCHEDULE_PERIOD_MILLIS) + .build(); + + let global_state = InMemoryGlobalState::empty().expect("should create global state"); + + let mut builder = InMemoryWasmTestBuilder::new(global_state, custom_engine_config, None); + + builder.run_genesis(&run_genesis_request); let post_genesis_requests = { let fund_delegator_account = ExecuteRequestBuilder::standard( @@ -2498,7 +2546,11 @@ fn should_not_undelegate_vfta_holder_stake() { let vesting_schedule = delegator .vesting_schedule() .expect("should have vesting schedule"); - assert!(matches!(vesting_schedule.locked_amounts(), Some(_))); + assert!( + matches!(vesting_schedule.locked_amounts(), Some(_)), + "{:?}", + vesting_schedule + ); } builder.exec(partial_unbond).commit(); @@ -2544,9 +2596,9 @@ fn should_release_vfta_holder_stake() { *DELEGATOR_1_ADDR, CONTRACT_UNDELEGATE, runtime_args! { - auction::ARG_VALIDATOR => ACCOUNT_1_PK.clone(), - auction::ARG_DELEGATOR => DELEGATOR_1.clone(), - ARG_AMOUNT => U512::from(amount), + auction::ARG_VALIDATOR => ACCOUNT_1_PK.clone(), + auction::ARG_DELEGATOR => DELEGATOR_1.clone(), + ARG_AMOUNT => U512::from(amount), }, ) .build(); From 6d7fc5aa42a206681ec3e5219af4fffba35df264 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 1 Sep 2023 16:06:43 +0200 Subject: [PATCH 667/735] Remove `network.keylog_path` in `setup_shared.sh` --- utils/nctl/sh/assets/setup_shared.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/utils/nctl/sh/assets/setup_shared.sh b/utils/nctl/sh/assets/setup_shared.sh index 9b116b67df..47cdfeecaf 100644 --- a/utils/nctl/sh/assets/setup_shared.sh +++ b/utils/nctl/sh/assets/setup_shared.sh @@ -411,6 +411,10 @@ function setup_asset_node_configs() SPECULATIVE_EXEC_ADDR=$(grep 'speculative_exec_server' $PATH_TO_CONFIG_FILE || true) # Set node configuration settings. + # Note: To dump TLS keys, add + # "cfg['network']['keylog_path']='$PATH_TO_NET/tlskeys';" + # -- but beware, this will break older nodes configurations. + # TODO: Write conditional include of this configuration setting. SCRIPT=( "import toml;" "cfg=toml.load('$PATH_TO_CONFIG_FILE');" @@ -418,7 +422,6 @@ function setup_asset_node_configs() "cfg['logging']['format']='$NCTL_NODE_LOG_FORMAT';" "cfg['network']['bind_address']='$(get_network_bind_address "$IDX")';" "cfg['network']['known_addresses']=[$(get_network_known_addresses "$IDX")];" - "cfg['network']['keylog_path']='$PATH_TO_NET/tlskeys';" "cfg['storage']['path']='../../storage';" "cfg['rest_server']['address']='0.0.0.0:$(get_node_port_rest "$IDX")';" "cfg['rpc_server']['address']='0.0.0.0:$(get_node_port_rpc "$IDX")';" From 8fdb42fb194247482ce50cb5ce1695521c84e1e4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 4 Sep 2023 16:38:42 +0200 Subject: [PATCH 668/735] Add a test ensuring all port bound components eventually report readiness --- node/src/reactor/main_reactor.rs | 11 ++++++ node/src/reactor/main_reactor/tests.rs | 46 ++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) diff --git a/node/src/reactor/main_reactor.rs b/node/src/reactor/main_reactor.rs index 158b77ff5b..436e5d7834 100644 --- a/node/src/reactor/main_reactor.rs +++ b/node/src/reactor/main_reactor.rs @@ -1228,9 +1228,20 @@ impl reactor::Reactor for MainReactor { #[cfg(test)] fn get_component_state(&self, name: &str) -> Option<&ComponentState> { match name { + "diagnostics_port" => Some( + >::state(&self.diagnostics_port), + ), + "event_stream_server" => Some( + >::state( + &self.event_stream_server, + ), + ), "rest_server" => Some(>::state( &self.rest_server, )), + "rpc_server" => Some(>::state( + &self.rpc_server, + )), _ => None, } } diff --git a/node/src/reactor/main_reactor/tests.rs b/node/src/reactor/main_reactor/tests.rs index 677d9f257a..dbb1ed9032 100644 --- a/node/src/reactor/main_reactor/tests.rs +++ b/node/src/reactor/main_reactor/tests.rs @@ -1255,3 +1255,49 @@ async fn all_metrics_from_1_5_are_present() { missing ); } + +#[tokio::test] +async fn port_bound_components_report_ready() { + testing::init_logging(); + + let mut rng = crate::new_rng(); + + let mut chain = TestChain::new(&mut rng, 2, None); + let mut net = chain + .create_initialized_network(&mut rng) + .await + .expect("network initialization failed"); + + // Ensure all `PortBoundComponent` implementors report readiness eventually. + net.settle_on_component_state( + &mut rng, + "rest_server", + &ComponentState::Initialized, + Duration::from_secs(10), + ) + .await; + + net.settle_on_component_state( + &mut rng, + "rpc_server", + &ComponentState::Initialized, + Duration::from_secs(10), + ) + .await; + + net.settle_on_component_state( + &mut rng, + "event_stream_server", + &ComponentState::Initialized, + Duration::from_secs(10), + ) + .await; + + net.settle_on_component_state( + &mut rng, + "diagnostics_port", + &ComponentState::Initialized, + Duration::from_secs(10), + ) + .await; +} From b70694e1baeed7813449486f20ff0561ecd3e68f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 4 Sep 2023 17:06:54 +0200 Subject: [PATCH 669/735] Ensure initialization status for port bound components not storing bind port is correct --- node/src/components/diagnostics_port.rs | 10 +++++++++- node/src/components/event_stream_server.rs | 13 ++++++++++++- node/src/components/rpc_server.rs | 12 +++++++++++- 3 files changed, 32 insertions(+), 3 deletions(-) diff --git a/node/src/components/diagnostics_port.rs b/node/src/components/diagnostics_port.rs index 820567cfc6..78d74b8ab9 100644 --- a/node/src/components/diagnostics_port.rs +++ b/node/src/components/diagnostics_port.rs @@ -141,8 +141,16 @@ where if self.state != ComponentState::Initializing { return Effects::new(); } - let (effects, state) = self.bind(self.config.value().enabled, effect_builder); + let (effects, mut state) = + self.bind(self.config.value().enabled, effect_builder); + + if matches!(state, ComponentState::Initializing) { + // No port address to bind, jump to initialized immediately. + state = ComponentState::Initialized; + } + >::set_state(self, state); + effects } }, diff --git a/node/src/components/event_stream_server.rs b/node/src/components/event_stream_server.rs index 3be94dd30d..f0bbaa4e38 100644 --- a/node/src/components/event_stream_server.rs +++ b/node/src/components/event_stream_server.rs @@ -211,7 +211,18 @@ where } ComponentState::Initializing => match event { Event::Initialize => { - let (effects, state) = self.bind(self.config.enable_server, _effect_builder); + let (effects, mut state) = + self.bind(self.config.enable_server, _effect_builder); + + if matches!(state, ComponentState::Initializing) { + // Our current code does not support storing the bound port, so we skip the + // second step and go straight to `Initialized`. If new tests are written + // that rely on an initialized RPC server with a port being available, this + // needs to be refactored. Compare with the REST server on how this could be + // done. + state = ComponentState::Initialized; + } + >::set_state(self, state); effects } diff --git a/node/src/components/rpc_server.rs b/node/src/components/rpc_server.rs index a49efcd416..81b06b977c 100644 --- a/node/src/components/rpc_server.rs +++ b/node/src/components/rpc_server.rs @@ -218,7 +218,17 @@ where } ComponentState::Initializing => match event { Event::Initialize => { - let (effects, state) = self.bind(self.config.enable_server, effect_builder); + let (effects, mut state) = self.bind(self.config.enable_server, effect_builder); + + if matches!(state, ComponentState::Initializing) { + // Our current code does not support storing the bound port, so we skip the + // second step and go straight to `Initialized`. If new tests are written + // that rely on an initialized RPC server with a port being available, this + // needs to be refactored. Compare with the REST server on how this could be + // done. + state = ComponentState::Initialized; + } + >::set_state(self, state); effects } From 76f58fc41592fffb173c2a44eb1f38a4326039bc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Tue, 5 Sep 2023 12:18:20 +0200 Subject: [PATCH 670/735] Update default const value to zero. --- execution_engine/src/core/engine_state/engine_config.rs | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/execution_engine/src/core/engine_state/engine_config.rs b/execution_engine/src/core/engine_state/engine_config.rs index eaa38dd549..302d10577c 100644 --- a/execution_engine/src/core/engine_state/engine_config.rs +++ b/execution_engine/src/core/engine_state/engine_config.rs @@ -30,13 +30,8 @@ pub const DEFAULT_MAX_STORED_VALUE_SIZE: u32 = 8 * 1024 * 1024; pub const DEFAULT_MINIMUM_DELEGATION_AMOUNT: u64 = 500 * 1_000_000_000; /// Default value for strict argument checking. pub const DEFAULT_STRICT_ARGUMENT_CHECKING: bool = false; -/// 91 days / 7 days in a week = 13 weeks -/// Length of total vesting schedule in days. -const VESTING_SCHEDULE_LENGTH_DAYS: usize = 91; -const DAY_MILLIS: usize = 24 * 60 * 60 * 1000; /// Default length of total vesting schedule period expressed in days. -pub const DEFAULT_VESTING_SCHEDULE_LENGTH_MILLIS: u64 = - VESTING_SCHEDULE_LENGTH_DAYS as u64 * DAY_MILLIS as u64; +pub const DEFAULT_VESTING_SCHEDULE_LENGTH_MILLIS: u64 = 0; /// Default value for allowing auction bids. pub const DEFAULT_ALLOW_AUCTION_BIDS: bool = true; /// Default value for allowing unrestricted transfers. From 5c456007c9f427048211f193f893b4ba37bcd030 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Tue, 5 Sep 2023 16:49:17 +0200 Subject: [PATCH 671/735] Fix double negative --- utils/global-state-update-gen/src/generic.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/utils/global-state-update-gen/src/generic.rs b/utils/global-state-update-gen/src/generic.rs index bca37a1c7f..e8e52acde3 100644 --- a/utils/global-state-update-gen/src/generic.rs +++ b/utils/global-state-update-gen/src/generic.rs @@ -277,7 +277,7 @@ pub fn add_and_remove_bids( validators_diff.removed.clone() }; - for (pub_key, seigniorage_recipient) in new_snapshot.values().rev().next_back().unwrap() { + for (pub_key, seigniorage_recipient) in new_snapshot.values().next_back().unwrap() { create_or_update_bid(state, pub_key, seigniorage_recipient, slash); } From b0b54d71837be7ff6c2b6a6d6d56c94da633faed Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Sep 2023 15:29:46 +0200 Subject: [PATCH 672/735] Replace a needles `Option>` with `Arc` for simplicity --- node/src/components/network.rs | 57 +++++++++++++++------------- node/src/components/network/tasks.rs | 8 +--- 2 files changed, 32 insertions(+), 33 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 097e19cb99..8988d8e6a6 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -634,36 +634,39 @@ where } // If given a key, determine validator status. - let validator_status = peer_consensus_public_key.as_ref().map(|public_key| { - let status = self - .validator_matrix - .is_active_or_upcoming_validator(public_key); - - // Find the shared `Arc` that holds the validator status for this specific key. - match self.incoming_validator_status.entry((**public_key).clone()) { - // TODO: Use `Arc` for public key-key. - Entry::Occupied(mut occupied) => { - match occupied.get().upgrade() { - Some(arc) => { - arc.store(status, Ordering::Relaxed); - arc - } - None => { - // Failed to ugprade, the weak pointer is just a leftover that - // has not been cleaned up yet. We can replace it. - let arc = Arc::new(AtomicBool::new(status)); - occupied.insert(Arc::downgrade(&arc)); - arc + let validator_status = peer_consensus_public_key + .as_ref() + .map(|public_key| { + let status = self + .validator_matrix + .is_active_or_upcoming_validator(public_key); + + // Find the shared `Arc` that holds validator status for this specific key. + match self.incoming_validator_status.entry((**public_key).clone()) { + // TODO: Use `Arc` for public key-key. + Entry::Occupied(mut occupied) => { + match occupied.get().upgrade() { + Some(arc) => { + arc.store(status, Ordering::Relaxed); + arc + } + None => { + // Failed to ugprade, the weak pointer is just a leftover + // that has not been cleaned up yet. We can replace it. + let arc = Arc::new(AtomicBool::new(status)); + occupied.insert(Arc::downgrade(&arc)); + arc + } } } + Entry::Vacant(vacant) => { + let arc = Arc::new(AtomicBool::new(status)); + vacant.insert(Arc::downgrade(&arc)); + arc + } } - Entry::Vacant(vacant) => { - let arc = Arc::new(AtomicBool::new(status)); - vacant.insert(Arc::downgrade(&arc)); - arc - } - } - }); + }) + .unwrap_or_else(|| Arc::new(AtomicBool::new(false))); let (read_half, write_half) = tokio::io::split(transport); diff --git a/node/src/components/network/tasks.rs b/node/src/components/network/tasks.rs index b88db86af8..4cf53c18e6 100644 --- a/node/src/components/network/tasks.rs +++ b/node/src/components/network/tasks.rs @@ -467,7 +467,7 @@ pub(super) async fn server( /// Juliet-based message receiver. pub(super) async fn message_receiver( context: Arc>, - validator_status: Option>, + validator_status: Arc, mut rpc_server: RpcServer, shutdown: ObservableFuse, peer_id: NodeId, @@ -532,11 +532,7 @@ where }); } - let queue_kind = if validator_status - .as_ref() - .map(|arc| arc.load(Ordering::Relaxed)) - .unwrap_or_default() - { + let queue_kind = if validator_status.load(Ordering::Relaxed) { QueueKind::MessageValidator } else if msg.is_low_priority() { QueueKind::MessageLowPriority From 2251180feccad81239017dacddce1ad84ab5d18f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 7 Sep 2023 15:44:06 +0200 Subject: [PATCH 673/735] Minor clippy fix --- node/src/types/block.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/types/block.rs b/node/src/types/block.rs index c570fe36e0..b2182c0486 100644 --- a/node/src/types/block.rs +++ b/node/src/types/block.rs @@ -1887,7 +1887,7 @@ impl BlockExecutionResultsOrChunk { num_results: usize, ) -> Self { let execution_results: Vec = - (0..num_results).into_iter().map(|_| rng.gen()).collect(); + (0..num_results).map(|_| rng.gen()).collect(); Self { block_hash, From 7beeda7ccabf9f55e2ffd8f9ae75f0482d0c7ca9 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 14:14:04 +0200 Subject: [PATCH 674/735] Remove `datasize` patch with the release crate version `0.2.15` --- Cargo.lock | 9 +++++---- Cargo.toml | 3 --- 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 356977cbf4..dda49a049c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1319,8 +1319,9 @@ dependencies = [ [[package]] name = "datasize" -version = "0.2.14" -source = "git+https://github.com/casperlabs/datasize-rs?rev=2b980c05af5553522dde5f2751e5a0fd3347d881#2b980c05af5553522dde5f2751e5a0fd3347d881" +version = "0.2.15" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e65c07d59e45d77a8bda53458c24a828893a99ac6cdd9c84111e09176ab739a2" dependencies = [ "datasize_derive", "fake_instant", @@ -1331,9 +1332,9 @@ dependencies = [ [[package]] name = "datasize_derive" -version = "0.2.14" +version = "0.2.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8b0415ec81945214410892a00d4b5dd4566f6263205184248e018a3fe384a61e" +checksum = "613e4ee15899913285b7612004bbd490abd605be7b11d35afada5902fb6b91d5" dependencies = [ "proc-macro2 1.0.56", "quote 1.0.26", diff --git a/Cargo.toml b/Cargo.toml index f76c26cc5e..4a3b2ee08a 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -44,6 +44,3 @@ lto = true [profile.release-with-debug] inherits = "release" debug = true - -[patch.crates-io] -datasize = { git = "https://github.com/casperlabs/datasize-rs", rev = "2b980c05af5553522dde5f2751e5a0fd3347d881" } From d51a1f3968ad4bf4fcf53a2414473e15675bca11 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 14:19:31 +0200 Subject: [PATCH 675/735] Changed `Block` and `BlockHeader` channel assignment --- node/src/protocol.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/node/src/protocol.rs b/node/src/protocol.rs index 1d23085601..cfc5255b55 100644 --- a/node/src/protocol.rs +++ b/node/src/protocol.rs @@ -123,8 +123,8 @@ impl Payload for Message { } => match tag { Tag::Deploy => Channel::DataRequests, Tag::LegacyDeploy => Channel::SyncDataRequests, - Tag::Block => Channel::DataRequests, - Tag::BlockHeader => Channel::DataRequests, + Tag::Block => Channel::SyncDataRequests, + Tag::BlockHeader => Channel::SyncDataRequests, Tag::TrieOrChunk => Channel::SyncDataRequests, Tag::FinalitySignature => Channel::DataRequests, Tag::SyncLeap => Channel::SyncDataRequests, @@ -138,8 +138,8 @@ impl Payload for Message { // TODO: Verify which responses are for sync data. Tag::Deploy => Channel::DataResponses, Tag::LegacyDeploy => Channel::SyncDataResponses, - Tag::Block => Channel::DataResponses, - Tag::BlockHeader => Channel::DataResponses, + Tag::Block => Channel::SyncDataResponses, + Tag::BlockHeader => Channel::SyncDataResponses, Tag::TrieOrChunk => Channel::SyncDataResponses, Tag::FinalitySignature => Channel::DataResponses, Tag::SyncLeap => Channel::SyncDataResponses, From 0db3e98a5877760fd3cec52074c133f03348a69c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 14:21:44 +0200 Subject: [PATCH 676/735] Work around issues with CI by removing `eprintln` from test --- node/src/components/network/message.rs | 1 - 1 file changed, 1 deletion(-) diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index e977d84e74..b58c9f524e 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -896,7 +896,6 @@ mod tests { fn channels_enum_does_not_have_holes() { for idx in 0..Channel::COUNT { let result = Channel::from_repr(idx as u8); - eprintln!("idx: {} channel: {:?}", idx, result); result.expect("must not have holes in channel enum"); } } From 2727ede282608b8bcfba133fe248c405e30fe2b1 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 15:07:02 +0200 Subject: [PATCH 677/735] juliet: Only store header in remote protocol violation --- juliet/src/io.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index bbc434ed5d..30f0602484 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -141,8 +141,8 @@ pub enum CoreError { data: Option, }, /// The remote peer violated the protocol and has been sent an error. - #[error("error sent to peer")] - RemoteProtocolViolation(OutgoingFrame), + #[error("error sent to peer: {0}")] + RemoteProtocolViolation(Header), #[error("local protocol violation")] /// Local protocol violation - caller violated the crate's API. LocalProtocolViolation(#[from] LocalProtocolViolation), @@ -420,7 +420,7 @@ where if frame_sent.header().is_error() { // We finished sending an error frame, time to exit. - return Err(CoreError::RemoteProtocolViolation(frame_sent)); + return Err(CoreError::RemoteProtocolViolation(frame_sent.header())); } } From 44f440d2c8b8ae0a5f1171746afb481046ad1f22 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 15:07:12 +0200 Subject: [PATCH 678/735] juliet: Fix documentation link --- juliet/src/protocol/multiframe.rs | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 1ea194774a..988a922f75 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -55,7 +55,8 @@ impl MultiframeReceiver { /// intermediate segment was processed without completing the message, both are still consumed, /// but `None` is returned instead. This method will never consume more than one frame. /// - /// On any error, [`Outcome::Err`] with a suitable message to return to the sender is returned. + /// On any error, [`Outcome::Fatal`] with a suitable message to return to the sender is + /// returned. /// /// `max_payload_size` is the maximum size of a payload across multiple frames. If it is /// exceeded, the `payload_exceeded_error_kind` function is used to construct an error `Header` From 7c7a3ff7c7d7ff5fd1a31a6bcba51240858f5f1c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 15:17:58 +0200 Subject: [PATCH 679/735] Box connection errors and ticket internals to keep network event size down --- node/src/components/network.rs | 4 ++-- node/src/components/network/event.rs | 4 ++-- node/src/components/network/transport.rs | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 8988d8e6a6..02320e6e9d 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -690,7 +690,7 @@ where drop(rpc_client); Event::IncomingClosed { - result, + result: result.map_err(Box::new), peer_id: Box::new(peer_id), peer_addr, peer_consensus_public_key, @@ -706,7 +706,7 @@ where fn handle_incoming_closed( &mut self, - result: Result<(), MessageReceiverError>, + result: Result<(), Box>, peer_id: Box, peer_addr: SocketAddr, peer_consensus_public_key: Option>, diff --git a/node/src/components/network/event.rs b/node/src/components/network/event.rs index e1d59a7ee1..58092eb6f1 100644 --- a/node/src/components/network/event.rs +++ b/node/src/components/network/event.rs @@ -24,7 +24,7 @@ use crate::{ }; const _NETWORK_EVENT_SIZE: usize = mem::size_of::>(); -const_assert!(_NETWORK_EVENT_SIZE < 999); // TODO: This used to be 65 bytes! +const_assert!(_NETWORK_EVENT_SIZE < 65); /// A network event. #[derive(Debug, From, Serialize)] @@ -56,7 +56,7 @@ where /// Incoming connection closed. IncomingClosed { #[serde(skip_serializing)] - result: Result<(), MessageReceiverError>, + result: Result<(), Box>, peer_id: Box, peer_addr: SocketAddr, peer_consensus_public_key: Option>, diff --git a/node/src/components/network/transport.rs b/node/src/components/network/transport.rs index 626b004b0d..9fbcd9c145 100644 --- a/node/src/components/network/transport.rs +++ b/node/src/components/network/transport.rs @@ -51,12 +51,12 @@ pub(super) fn create_rpc_builder( /// Dropping it will cause an "ACK", which in the Juliet transport's case is an empty response, to /// be sent. Cancellations or responses with actual payloads are not used at this time. #[derive(Debug)] -pub(crate) struct Ticket(Option); +pub(crate) struct Ticket(Option>); impl Ticket { #[inline(always)] pub(super) fn from_rpc_request(incoming_request: IncomingRequest) -> Self { - Ticket(Some(incoming_request)) + Ticket(Some(Box::new(incoming_request))) } #[cfg(test)] From 7c913ae6d78344a16a030152c32b6b1a6de3879a Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 15:21:08 +0200 Subject: [PATCH 680/735] Remove `TraceId` feature --- node/src/components/network/connection_id.rs | 146 +------------------ 1 file changed, 2 insertions(+), 144 deletions(-) diff --git a/node/src/components/network/connection_id.rs b/node/src/components/network/connection_id.rs index c09a420a1a..43176f5bd6 100644 --- a/node/src/components/network/connection_id.rs +++ b/node/src/components/network/connection_id.rs @@ -1,14 +1,7 @@ //! Observability for network serialization/deserialization. //! -//! This module introduces two IDs: [`ConnectionId`] and [`TraceId`]. The [`ConnectionId`] is a -//! unique ID per established connection that can be independently derive by peers on either of a -//! connection. [`TraceId`] identifies a single message, distinguishing even messages that are sent -//! to the same peer with equal contents. - -use std::{ - convert::TryFrom, - fmt::{self, Display, Formatter}, -}; +//! This module introduces [`ConnectionId`], a unique ID per established connection that can be +//! independently derived by peers on either side of a connection. use openssl::ssl::SslRef; #[cfg(test)] @@ -23,18 +16,6 @@ use casper_types::testing::TestRng; use super::tls::KeyFingerprint; use crate::{types::NodeId, utils}; -/// Lazily-evaluated network message ID generator. -/// -/// Calculates a hash for the wrapped value when `Display::fmt` is called. -#[derive(Copy, Clone, Debug, Eq, PartialEq)] -struct TraceId([u8; 8]); - -impl Display for TraceId { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - f.write_str(&base16::encode_lower(&self.0)) - } -} - /// An ID identifying a connection. /// /// The ID is guaranteed to be the same on both ends of the connection, but not guaranteed to be @@ -125,30 +106,6 @@ impl ConnectionId { ConnectionId(id) } - /// Creates a new [`TraceID`] based on the message count. - /// - /// The `flag` should be created using the [`Role::in_flag`] or [`Role::out_flag`] method and - /// must be created accordingly (`out_flag` when serializing, `in_flag` when deserializing). - #[allow(dead_code)] // TODO: Re-add if necessary when connection packet tracing is readded. - fn create_trace_id(&self, flag: u8, count: u64) -> TraceId { - // Copy the basic network ID. - let mut buffer = self.0; - - // Direction set on first byte. - buffer[0] ^= flag; - - // XOR in message count. - utils::xor(&mut buffer[4..12], &count.to_ne_bytes()); - - // Hash again and truncate. - let full_hash = Digest::hash(buffer); - - // Safe to expect here, as we assert earlier that `Digest` is at least 12 bytes. - let truncated = TryFrom::try_from(&full_hash.value()[0..8]).expect("buffer size mismatch"); - - TraceId(truncated) - } - #[inline] /// Returns a reference to the raw bytes of the connection ID. pub(crate) fn as_bytes(&self) -> &[u8] { @@ -171,102 +128,3 @@ impl ConnectionId { ) } } - -/// Message sending direction. -#[derive(Copy, Clone, Debug)] -#[repr(u8)] -#[allow(dead_code)] // TODO: Re-add if necessary when connection packet tracing is readded. -pub(super) enum Role { - /// Dialer, i.e. initiator of the connection. - Dialer, - /// Listener, acceptor of the connection. - Listener, -} - -#[allow(dead_code)] // TODO: Re-add if necessary when connection packet tracing is readded. -impl Role { - /// Returns a flag suitable for hashing incoming messages. - #[inline] - fn in_flag(self) -> u8 { - !(self.out_flag()) - } - - /// Returns a flag suitable for hashing outgoing messages. - #[inline] - fn out_flag(self) -> u8 { - // The magic flag uses 50% of the bits, to be XOR'd into the hash later. - const MAGIC_FLAG: u8 = 0b10101010; - - match self { - Role::Dialer => MAGIC_FLAG, - Role::Listener => !MAGIC_FLAG, - } - } -} - -#[cfg(test)] -mod tests { - use crate::types::NodeId; - - use super::{ConnectionId, Role, TlsRandomData, TraceId}; - - #[test] - fn trace_id_has_16_character() { - let data = [0, 1, 2, 3, 4, 5, 6, 7]; - - let output = format!("{}", TraceId(data)); - - assert_eq!(output.len(), 16); - } - - #[test] - fn can_create_deterministic_trace_id() { - let mut rng = crate::new_rng(); - - // Scenario: Nodes A and B are connecting to each other. Both connections are established. - let node_a = NodeId::random(&mut rng); - let node_b = NodeId::random(&mut rng); - - // We get two connections, with different Tls random data, but it will be the same on both - // ends of the connection. - let a_to_b_random = TlsRandomData::random(&mut rng); - let a_to_b = ConnectionId::create(a_to_b_random, node_a, node_b); - let a_to_b_alt = ConnectionId::create(a_to_b_random, node_b, node_a); - - // Ensure that either peer ends up with the same connection id. - assert_eq!(a_to_b, a_to_b_alt); - - let b_to_a_random = TlsRandomData::random(&mut rng); - let b_to_a = ConnectionId::create(b_to_a_random, node_b, node_a); - let b_to_a_alt = ConnectionId::create(b_to_a_random, node_a, node_b); - assert_eq!(b_to_a, b_to_a_alt); - - // The connection IDs must be distinct though. - assert_ne!(a_to_b, b_to_a); - - // We are only looking at messages sent on the `a_to_b` connection, although from both ends. - // In our example example, `node_a` is the dialing node, `node_b` the listener. - - // Trace ID on A, after sending to B. - let msg_ab_0_on_a = a_to_b.create_trace_id(Role::Dialer.out_flag(), 0); - - // The same message on B. - let msg_ab_0_on_b = a_to_b.create_trace_id(Role::Listener.in_flag(), 0); - - // These trace IDs must match. - assert_eq!(msg_ab_0_on_a, msg_ab_0_on_b); - - // The second message must have a distinct trace ID. - let msg_ab_1_on_a = a_to_b.create_trace_id(Role::Dialer.out_flag(), 1); - let msg_ab_1_on_b = a_to_b.create_trace_id(Role::Listener.in_flag(), 1); - assert_eq!(msg_ab_1_on_a, msg_ab_1_on_b); - assert_ne!(msg_ab_0_on_a, msg_ab_1_on_a); - - // Sending a message on the **same connection** in a **different direction** also must yield - // a different message id. - let msg_ba_0_on_b = a_to_b.create_trace_id(Role::Listener.out_flag(), 0); - let msg_ba_0_on_a = a_to_b.create_trace_id(Role::Dialer.in_flag(), 0); - assert_eq!(msg_ba_0_on_b, msg_ba_0_on_a); - assert_ne!(msg_ba_0_on_b, msg_ab_0_on_b); - } -} From f78d9cc34c781e5c7b07ded083a91b60df2c3129 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 15:23:46 +0200 Subject: [PATCH 681/735] Note ticket for restoration of validator status based priorization --- node/src/components/network.rs | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 02320e6e9d..e3024cc050 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -429,6 +429,7 @@ where exclude: HashSet, ) -> HashSet { // TODO: Restore sampling functionality. We currently override with `GossipTarget::All`. + // See #4247. let is_validator_in_era = |_, _: &_| true; let gossip_target = GossipTarget::All; @@ -841,7 +842,7 @@ where OutgoingConnection::Established { peer_addr, peer_id, - peer_consensus_public_key: _, // TODO: Use for limiting or remove. + peer_consensus_public_key: _, // TODO: Use for limiting or remove. See also #4247. transport, } => { info!("new outgoing connection established"); From b7f6a04b619fedaa0af874b7ca856dd847e1f4ca Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 15:56:05 +0200 Subject: [PATCH 682/735] Clarify comment on moved `rpc_client` --- node/src/components/network.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index e3024cc050..607bc19e1b 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -686,8 +686,10 @@ where ) .instrument(span) .event(move |result| { - // We keep the client around, even though we do not use it, since dropping - // it will cause the connection to be closed from our end. + // By moving the `rpc_client` into this closure to drop it, we ensure it + // does not get dropped until after `tasks::message_receiver` has returned. + // This is important because dropping `rpc_client` is one of the ways to + // trigger a connection shutdown from our end. drop(rpc_client); Event::IncomingClosed { From 04817ff547edc92657ef5d89ff15088d1cb61d6f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 16:32:46 +0200 Subject: [PATCH 683/735] Replace `enqueue_message`/`send_message` with new `try_send_message`/`send_message` with better semantics --- .../components/consensus/era_supervisor.rs | 6 +- node/src/components/in_memory_network.rs | 9 +- node/src/components/network.rs | 125 ++++++++++-------- node/src/effect.rs | 61 ++++++--- node/src/effect/requests.rs | 11 +- 5 files changed, 122 insertions(+), 90 deletions(-) diff --git a/node/src/components/consensus/era_supervisor.rs b/node/src/components/consensus/era_supervisor.rs index ef9f2cd77d..3d260f84d1 100644 --- a/node/src/components/consensus/era_supervisor.rs +++ b/node/src/components/consensus/era_supervisor.rs @@ -980,7 +980,7 @@ impl EraSupervisor { } ProtocolOutcome::CreatedTargetedMessage(payload, to) => { let message = ConsensusMessage::Protocol { era_id, payload }; - effect_builder.enqueue_message(to, message.into()).ignore() + effect_builder.try_send_message(to, message.into()).ignore() } ProtocolOutcome::CreatedMessageToRandomPeer(payload) => { let message = ConsensusMessage::Protocol { era_id, payload }; @@ -988,7 +988,7 @@ impl EraSupervisor { async move { let peers = effect_builder.get_fully_connected_peers(1).await; if let Some(to) = peers.into_iter().next() { - effect_builder.enqueue_message(to, message.into()).await; + effect_builder.try_send_message(to, message.into()).await; } } .ignore() @@ -999,7 +999,7 @@ impl EraSupervisor { async move { let peers = effect_builder.get_fully_connected_peers(1).await; if let Some(to) = peers.into_iter().next() { - effect_builder.enqueue_message(to, message.into()).await; + effect_builder.try_send_message(to, message.into()).await; } } .ignore() diff --git a/node/src/components/in_memory_network.rs b/node/src/components/in_memory_network.rs index f0f64130c3..d1b3f02a07 100644 --- a/node/src/components/in_memory_network.rs +++ b/node/src/components/in_memory_network.rs @@ -537,8 +537,7 @@ where NetworkRequest::SendMessage { dest, payload, - respond_early: _, - auto_closing_responder, + message_queued_responder, } => { if *dest == self.node_id { panic!("can't send message to self"); @@ -550,7 +549,11 @@ where error!("network lock has been poisoned") }; - auto_closing_responder.respond(()).ignore() + if let Some(responder) = message_queued_responder { + responder.respond(()).ignore() + } else { + Effects::new() + } } NetworkRequest::ValidatorBroadcast { payload, diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 607bc19e1b..5a19acb463 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -62,7 +62,7 @@ use datasize::DataSize; use futures::{future::BoxFuture, FutureExt}; use itertools::Itertools; -use juliet::rpc::{JulietRpcClient, JulietRpcServer, RpcBuilder}; +use juliet::rpc::{JulietRpcClient, JulietRpcServer, RequestGuard, RpcBuilder}; use prometheus::Registry; use rand::{ seq::{IteratorRandom, SliceRandom}, @@ -476,7 +476,7 @@ where &self, dest: NodeId, msg: Arc>, - _opt_responder: Option>, // TODO: Restore functionality or remove? + message_queued_responder: Option>, ) { // Try to send the message. if let Some(connection) = self.outgoing_manager.get_route(dest) { @@ -485,56 +485,51 @@ where let payload = if let Some(payload) = serialize_network_message(&msg) { payload } else { - // TODO: Note/log that serialization failed. - // The `AutoClosingResponder` will respond by itself. + // No need to log, `serialize_network_message` already logs the failure. return; }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - let guard = match connection + let channel_id = channel.into_channel_id(); + let request = connection .rpc_client - .create_request(channel.into_channel_id()) - .with_payload(payload) - .try_queue_for_sending() - { - Ok(guard) => guard, - Err(builder) => { - // We had to drop the message, since we hit the buffer limit. - debug!(%channel, "node is sending at too high a rate, message dropped"); - - let payload = builder.into_payload().unwrap_or_default(); - match deserialize_network_message::

(&payload) { - Ok(reconstructed_message) => { - debug!(our_id=%self.context.our_id(), %dest, msg=%reconstructed_message, "dropped outgoing message, buffer exhausted"); - } - Err(err) => { - error!(our_id=%self.context.our_id(), - %dest, - reconstruction_error=%err, - ?payload, - "dropped outgoing message, buffer exhausted and also failed to reconstruct it" - ); + .create_request(channel_id) + .with_payload(payload); + + if let Some(responder) = message_queued_responder { + // Technically, the queueing future should be spawned by the reactor, but we can + // make a case here since the networking component usually controls its own + // futures, we are allowed to spawn these as well. + tokio::spawn(async move { + let guard = request.queue_for_sending().await; + responder.respond(()).await; + + // We need to properly process the guard, so it does not cause a cancellation. + process_request_guard(channel, guard) + }); + } else { + // No responder given, so we do a best effort of sending the message. + match request.try_queue_for_sending() { + Ok(guard) => process_request_guard(channel, guard), + Err(builder) => { + // We had to drop the message, since we hit the buffer limit. + debug!(%channel, "node is sending at too high a rate, message dropped"); + + let payload = builder.into_payload().unwrap_or_default(); + match deserialize_network_message::

(&payload) { + Ok(reconstructed_message) => { + debug!(our_id=%self.context.our_id(), %dest, msg=%reconstructed_message, "dropped outgoing message, buffer exhausted"); + } + Err(err) => { + error!(our_id=%self.context.our_id(), + %dest, + reconstruction_error=%err, + ?payload, + "dropped outgoing message, buffer exhausted and also failed to reconstruct it" + ); + } } } - - return; - } - }; - - // At this point, we could pass the guard to the original component to allow for - // backpressure to actually propagate. In the current version we are still going with - // the fire-and-forget model though, so simply check for an immediate error, then - // forget. - match guard.try_wait_for_response() { - Ok(Ok(_outcome)) => { - // We got an incredibly quick round-trip, lucky us! Nothing to do. - } - Ok(Err(err)) => { - debug!(%channel, %err, "failed to send message"); - } - Err(guard) => { - // Not done yet, forget. - guard.forget(); } } @@ -900,24 +895,18 @@ where NetworkRequest::SendMessage { dest, payload, - respond_early, - auto_closing_responder, + message_queued_responder, } => { // We're given a message to send. Pass on the responder so that confirmation // can later be given once the message has actually been buffered. self.net_metrics.direct_message_requests.inc(); - if respond_early { - self.send_message(*dest, Arc::new(Message::Payload(*payload)), None); - auto_closing_responder.respond(()).ignore() - } else { - self.send_message( - *dest, - Arc::new(Message::Payload(*payload)), - Some(auto_closing_responder), - ); - Effects::new() - } + self.send_message( + *dest, + Arc::new(Message::Payload(*payload)), + message_queued_responder, + ); + Effects::new() } NetworkRequest::ValidatorBroadcast { payload, @@ -1489,6 +1478,26 @@ where } } +/// Processes a request guard obtained by making a request to a peer through Juliet RPC. +/// +/// Ensures that outgoing messages are not cancelled, a would be the case when simply dropping the +/// `RequestGuard`. Potential errors that are available early are dropped, later errors discarded. +#[inline] +fn process_request_guard(channel: Channel, guard: RequestGuard) { + match guard.try_wait_for_response() { + Ok(Ok(_outcome)) => { + // We got an incredibly quick round-trip, lucky us! Nothing to do. + } + Ok(Err(err)) => { + debug!(%channel, %err, "failed to send message"); + } + Err(guard) => { + // No ACK received yet, forget, so we don't cancel. + guard.forget(); + } + } +} + #[cfg(test)] mod gossip_target_tests { use std::{collections::BTreeSet, iter}; diff --git a/node/src/effect.rs b/node/src/effect.rs index 21fd99a328..437c7d6b5b 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -669,8 +669,20 @@ impl EffectBuilder { /// Sends a network message. /// - /// The message is queued and sent, but no delivery guaranteed. Will return after the message - /// has been buffered in the outgoing kernel buffer and thus is subject to backpressure. + /// The message is queued and sent, without any delivery guarantees. Will return after the + /// message has been buffered by the networking stack and is thus is subject to backpressure + /// from the receiving peer. + /// + /// If the message cannot be buffered immediately, `send_message` will wait until there is room + /// in the networking layer's buffer available. This means that messages will be buffered + /// outside the networking component without any limit, when this method is used. The calling + /// component is responsible for ensuring that not too many instances of `send_message` are + /// awaited at any one point in time. + /// + /// If the peer is not reachable, the message will be discarded. + /// + /// See `try_send_message` for a method that does not buffer messages outside networking if + /// buffers are full, but discards them instead. pub(crate) async fn send_message

(self, dest: NodeId, payload: P) where REv: From>, @@ -679,32 +691,45 @@ impl EffectBuilder { |responder| NetworkRequest::SendMessage { dest: Box::new(dest), payload: Box::new(payload), - respond_early: false, - auto_closing_responder: AutoClosingResponder::from_opt_responder(responder), + message_queued_responder: Some(AutoClosingResponder::from_opt_responder(responder)), }, QueueKind::Network, ) .await; + + // Note: It does not matter to use whether `Some()` (indicating buffering) or `None` + // (indicating a lost message) was returned, since we do not guarantee anything about + // delivery. } - /// Enqueues a network message. + /// Sends a network message with best effort. + /// + /// The message is queued in "fire-and-forget" fashion, there is no guarantee that the peer will + /// receive it. It may also be dropped if the outbound message queue for the specific peer is + /// full as well, instead of backpressure being propagated. /// - /// The message is queued in "fire-and-forget" fashion, there is no guarantee that the peer - /// will receive it. Returns as soon as the message is queued inside the networking component. - pub(crate) async fn enqueue_message

(self, dest: NodeId, payload: P) + /// Returns immediately. If called at extreme rates, this function may blow up the event queue, + /// since messages are only discarded once they have made their way to a networking component, + /// while this method returns earlier. + /// + /// A more heavyweight message sending function is available in `send_message`. + pub(crate) async fn try_send_message

(self, dest: NodeId, payload: P) where REv: From>, { - self.make_request( - |responder| NetworkRequest::SendMessage { - dest: Box::new(dest), - payload: Box::new(payload), - respond_early: true, - auto_closing_responder: AutoClosingResponder::from_opt_responder(responder), - }, - QueueKind::Network, - ) - .await; + // Note: Since we do not expect any response to our request, we can avoid spawning an extra + // task awaiting the responder. + + self.event_queue + .schedule( + NetworkRequest::SendMessage { + dest: Box::new(dest), + payload: Box::new(payload), + message_queued_responder: None, + }, + QueueKind::Network, + ) + .await } /// Broadcasts a network message to validator peers in the given era. diff --git a/node/src/effect/requests.rs b/node/src/effect/requests.rs index 16095cff02..95a2c8dad7 100644 --- a/node/src/effect/requests.rs +++ b/node/src/effect/requests.rs @@ -97,12 +97,9 @@ pub(crate) enum NetworkRequest

{ dest: Box, /// Message payload. payload: Box

, - /// If `true`, the responder will be called early after the message has been queued, not - /// waiting until it has passed to the kernel. - respond_early: bool, /// Responder to be called when the message has been *buffered for sending*. #[serde(skip_serializing)] - auto_closing_responder: AutoClosingResponder<()>, + message_queued_responder: Option>, }, /// Send a message on the network to validator peers in the given era. ValidatorBroadcast { @@ -143,13 +140,11 @@ impl

NetworkRequest

{ NetworkRequest::SendMessage { dest, payload, - respond_early, - auto_closing_responder, + message_queued_responder, } => NetworkRequest::SendMessage { dest, payload: Box::new(wrap_payload(*payload)), - respond_early, - auto_closing_responder, + message_queued_responder, }, NetworkRequest::ValidatorBroadcast { payload, From c0ae8560f6c83cb7f02b37c5178ce8961e12bed7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 16:58:29 +0200 Subject: [PATCH 684/735] juliet: Introduce `queue_for_sending_owned` --- juliet/src/rpc.rs | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 4b8c04af7b..75b85db5ed 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -28,6 +28,7 @@ use std::{ use bytes::Bytes; +use futures::Future; use once_cell::sync::OnceCell; use thiserror::Error; use tokio::{ @@ -335,6 +336,42 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { self.do_enqueue_request(ticket) } + /// Schedules a new request on an outgoing channel without borrowing the underlying client. + /// + /// Functions like [`JulietRpcRequestBuilder::queue_for_sending`], but partially clones the + /// client underlying this [`JulietRpcRequestBuilder`]. As a result, the future returned by this + /// function does not borrow anything and can be freely moved. + pub fn queue_for_sending_owned(self) -> impl Future { + let request_handle = self.client.request_handle.clone(); // TODO: Ensure only `IoShared` needs to be cloned here. + let new_request_sender = self.client.new_request_sender.clone(); + + // TODO: Factor out code in this block to share with `queue_for_sending`. + async move { + let ticket = match request_handle.reserve_request(self.channel).await { + Some(ticket) => ticket, + None => { + // We cannot queue the request, since the connection was closed. + return RequestGuard::new_error(RequestError::RemoteClosed(self.payload)); + } + }; + + { + let inner = Arc::new(RequestGuardInner::new()); + + match new_request_sender.send(NewOutgoingRequest { + ticket: ticket, + guard: inner.clone(), + payload: self.payload, + }) { + Ok(()) => RequestGuard { inner }, + Err(send_err) => { + RequestGuard::new_error(RequestError::RemoteClosed(send_err.0.payload)) + } + } + } + } + } + /// Schedules a new request on an outgoing channel if space is available. /// /// If no space is available, returns the [`JulietRpcRequestBuilder`] as an `Err` value, so it From 717057ce31952055afca4a48ba27b9a026e743cd Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 16:58:57 +0200 Subject: [PATCH 685/735] Fix ownership issues in node by calling `queue_for_sending_owned()` --- node/src/components/network.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 5a19acb463..c1b2a8c995 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -490,18 +490,18 @@ where }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - let channel_id = channel.into_channel_id(); let request = connection .rpc_client - .create_request(channel_id) + .create_request(channel.into_channel_id()) .with_payload(payload); if let Some(responder) = message_queued_responder { + let queue_fut = request.queue_for_sending_owned(); // Technically, the queueing future should be spawned by the reactor, but we can // make a case here since the networking component usually controls its own // futures, we are allowed to spawn these as well. tokio::spawn(async move { - let guard = request.queue_for_sending().await; + let guard = queue_fut.await; responder.respond(()).await; // We need to properly process the guard, so it does not cause a cancellation. From 9a915f30b336d8666d156abcd7e23363c64be70e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 17:16:52 +0200 Subject: [PATCH 686/735] juliet: Move `reserve_request` into `IoShared` --- juliet/src/io.rs | 58 +++++++++++++++++++++++------------------------ juliet/src/rpc.rs | 7 ++++-- 2 files changed, 34 insertions(+), 31 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 30f0602484..08c04cbadd 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -203,8 +203,7 @@ pub struct IoCore { /// Shared data between a handles and the core itself. #[derive(Debug)] -#[repr(transparent)] -struct IoShared { +pub(crate) struct IoShared { /// Tracks how many requests are in the wait queue. /// /// Tickets are freed once the item is in the wait queue, thus the semaphore permit count @@ -213,6 +212,28 @@ struct IoShared { /// /// The maximum number of available tickets must be >= 1 for the IO layer to function. buffered_requests: [Arc; N], + /// The next generated [`IoId`]. + /// + /// IoIDs are just generated sequentially until they run out (which at 1 billion at second + /// takes roughly 10^22 years). + next_io_id: Arc, +} + +impl IoShared { + /// Reserves a new request ticket. + #[inline] + pub(crate) async fn reserve_request(&self, channel: ChannelId) -> Option { + self.buffered_requests[channel.get() as usize] + .clone() + .acquire_owned() + .await + .map(|permit| RequestTicket { + channel, + permit, + io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), + }) + .ok() + } } /// Events produced by the IO layer. @@ -336,12 +357,9 @@ impl IoCoreBuilder { buffered_requests: array_init::map_array_init(&self.buffer_size, |&sz| { Arc::new(Semaphore::new(sz)) }), - }); - let handle = RequestHandle { - shared, - sender, next_io_id: Default::default(), - }; + }); + let handle = RequestHandle { shared, sender }; (core, handle) } @@ -762,14 +780,11 @@ fn item_should_wait( #[derive(Clone, Debug)] pub struct RequestHandle { /// Shared portion of the [`IoCore`], required for backpressuring onto clients. - shared: Arc>, + // Note: This field is leaking into the `rpc` module to enable partial cloning for + // `queue_for_sending_owned`. + pub(crate) shared: Arc>, /// Sender for queue items. sender: UnboundedSender, - /// The next generation [`IoId`]. - /// - /// IoIDs are just generated sequentially until they run out (which at 1 billion at second - /// takes roughly 10^22 years). - next_io_id: Arc, } /// Simple [`IoCore`] handle. @@ -842,7 +857,7 @@ impl RequestHandle { Ok(permit) => Ok(RequestTicket { channel, permit, - io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), + io_id: IoId(self.shared.next_io_id.fetch_add(1, Ordering::Relaxed)), }), Err(TryAcquireError::Closed) => Err(ReservationError::Closed), @@ -850,21 +865,6 @@ impl RequestHandle { } } - /// Reserves a new request ticket. - #[inline] - pub async fn reserve_request(&self, channel: ChannelId) -> Option { - self.shared.buffered_requests[channel.get() as usize] - .clone() - .acquire_owned() - .await - .map(|permit| RequestTicket { - channel, - permit, - io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), - }) - .ok() - } - /// Downgrades a [`RequestHandle`] to a [`Handle`]. #[inline(always)] pub fn downgrade(self) -> Handle { diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 75b85db5ed..4a08266bb3 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -323,6 +323,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { let ticket = match self .client .request_handle + .shared .reserve_request(self.channel) .await { @@ -342,12 +343,14 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// client underlying this [`JulietRpcRequestBuilder`]. As a result, the future returned by this /// function does not borrow anything and can be freely moved. pub fn queue_for_sending_owned(self) -> impl Future { - let request_handle = self.client.request_handle.clone(); // TODO: Ensure only `IoShared` needs to be cloned here. + // The `IoShared` is used to obtain a ticket for sending and the next `IoId`. + let io_shared = self.client.request_handle.shared.clone(); + let new_request_sender = self.client.new_request_sender.clone(); // TODO: Factor out code in this block to share with `queue_for_sending`. async move { - let ticket = match request_handle.reserve_request(self.channel).await { + let ticket = match io_shared.reserve_request(self.channel).await { Some(ticket) => ticket, None => { // We cannot queue the request, since the connection was closed. From f68a04359aba67e1c7459184ce3ccbab757d924f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 17:29:58 +0200 Subject: [PATCH 687/735] Solve issue of owned request construction by cloning RPC client instead --- node/src/components/network.rs | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index c1b2a8c995..4a9f3d9a81 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -490,24 +490,29 @@ where }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - let request = connection - .rpc_client - .create_request(channel.into_channel_id()) - .with_payload(payload); - if let Some(responder) = message_queued_responder { - let queue_fut = request.queue_for_sending_owned(); + let client = connection.rpc_client.clone(); + // Technically, the queueing future should be spawned by the reactor, but we can // make a case here since the networking component usually controls its own // futures, we are allowed to spawn these as well. tokio::spawn(async move { - let guard = queue_fut.await; + let guard = client + .create_request(channel.into_channel_id()) + .with_payload(payload) + .queue_for_sending() + .await; responder.respond(()).await; // We need to properly process the guard, so it does not cause a cancellation. process_request_guard(channel, guard) }); } else { + let request = connection + .rpc_client + .create_request(channel.into_channel_id()) + .with_payload(payload); + // No responder given, so we do a best effort of sending the message. match request.try_queue_for_sending() { Ok(guard) => process_request_guard(channel, guard), From 45062841939d801e5817a6c775fd19c098e1ef2e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 17:32:55 +0200 Subject: [PATCH 688/735] Revert "juliet: Move `reserve_request` into `IoShared`" This reverts commit 9a915f30b336d8666d156abcd7e23363c64be70e. --- juliet/src/io.rs | 58 +++++++++++++++++++++++------------------------ juliet/src/rpc.rs | 7 ++---- 2 files changed, 31 insertions(+), 34 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 08c04cbadd..30f0602484 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -203,7 +203,8 @@ pub struct IoCore { /// Shared data between a handles and the core itself. #[derive(Debug)] -pub(crate) struct IoShared { +#[repr(transparent)] +struct IoShared { /// Tracks how many requests are in the wait queue. /// /// Tickets are freed once the item is in the wait queue, thus the semaphore permit count @@ -212,28 +213,6 @@ pub(crate) struct IoShared { /// /// The maximum number of available tickets must be >= 1 for the IO layer to function. buffered_requests: [Arc; N], - /// The next generated [`IoId`]. - /// - /// IoIDs are just generated sequentially until they run out (which at 1 billion at second - /// takes roughly 10^22 years). - next_io_id: Arc, -} - -impl IoShared { - /// Reserves a new request ticket. - #[inline] - pub(crate) async fn reserve_request(&self, channel: ChannelId) -> Option { - self.buffered_requests[channel.get() as usize] - .clone() - .acquire_owned() - .await - .map(|permit| RequestTicket { - channel, - permit, - io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), - }) - .ok() - } } /// Events produced by the IO layer. @@ -357,9 +336,12 @@ impl IoCoreBuilder { buffered_requests: array_init::map_array_init(&self.buffer_size, |&sz| { Arc::new(Semaphore::new(sz)) }), - next_io_id: Default::default(), }); - let handle = RequestHandle { shared, sender }; + let handle = RequestHandle { + shared, + sender, + next_io_id: Default::default(), + }; (core, handle) } @@ -780,11 +762,14 @@ fn item_should_wait( #[derive(Clone, Debug)] pub struct RequestHandle { /// Shared portion of the [`IoCore`], required for backpressuring onto clients. - // Note: This field is leaking into the `rpc` module to enable partial cloning for - // `queue_for_sending_owned`. - pub(crate) shared: Arc>, + shared: Arc>, /// Sender for queue items. sender: UnboundedSender, + /// The next generation [`IoId`]. + /// + /// IoIDs are just generated sequentially until they run out (which at 1 billion at second + /// takes roughly 10^22 years). + next_io_id: Arc, } /// Simple [`IoCore`] handle. @@ -857,7 +842,7 @@ impl RequestHandle { Ok(permit) => Ok(RequestTicket { channel, permit, - io_id: IoId(self.shared.next_io_id.fetch_add(1, Ordering::Relaxed)), + io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), }), Err(TryAcquireError::Closed) => Err(ReservationError::Closed), @@ -865,6 +850,21 @@ impl RequestHandle { } } + /// Reserves a new request ticket. + #[inline] + pub async fn reserve_request(&self, channel: ChannelId) -> Option { + self.shared.buffered_requests[channel.get() as usize] + .clone() + .acquire_owned() + .await + .map(|permit| RequestTicket { + channel, + permit, + io_id: IoId(self.next_io_id.fetch_add(1, Ordering::Relaxed)), + }) + .ok() + } + /// Downgrades a [`RequestHandle`] to a [`Handle`]. #[inline(always)] pub fn downgrade(self) -> Handle { diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 4a08266bb3..75b85db5ed 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -323,7 +323,6 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { let ticket = match self .client .request_handle - .shared .reserve_request(self.channel) .await { @@ -343,14 +342,12 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// client underlying this [`JulietRpcRequestBuilder`]. As a result, the future returned by this /// function does not borrow anything and can be freely moved. pub fn queue_for_sending_owned(self) -> impl Future { - // The `IoShared` is used to obtain a ticket for sending and the next `IoId`. - let io_shared = self.client.request_handle.shared.clone(); - + let request_handle = self.client.request_handle.clone(); // TODO: Ensure only `IoShared` needs to be cloned here. let new_request_sender = self.client.new_request_sender.clone(); // TODO: Factor out code in this block to share with `queue_for_sending`. async move { - let ticket = match io_shared.reserve_request(self.channel).await { + let ticket = match request_handle.reserve_request(self.channel).await { Some(ticket) => ticket, None => { // We cannot queue the request, since the connection was closed. From 5644e9119423f30951dde095f8f3a1b05fe5b84f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 11 Sep 2023 17:32:57 +0200 Subject: [PATCH 689/735] Revert "juliet: Introduce `queue_for_sending_owned`" This reverts commit c0ae8560f6c83cb7f02b37c5178ce8961e12bed7. --- juliet/src/rpc.rs | 37 ------------------------------------- 1 file changed, 37 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 75b85db5ed..4b8c04af7b 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -28,7 +28,6 @@ use std::{ use bytes::Bytes; -use futures::Future; use once_cell::sync::OnceCell; use thiserror::Error; use tokio::{ @@ -336,42 +335,6 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { self.do_enqueue_request(ticket) } - /// Schedules a new request on an outgoing channel without borrowing the underlying client. - /// - /// Functions like [`JulietRpcRequestBuilder::queue_for_sending`], but partially clones the - /// client underlying this [`JulietRpcRequestBuilder`]. As a result, the future returned by this - /// function does not borrow anything and can be freely moved. - pub fn queue_for_sending_owned(self) -> impl Future { - let request_handle = self.client.request_handle.clone(); // TODO: Ensure only `IoShared` needs to be cloned here. - let new_request_sender = self.client.new_request_sender.clone(); - - // TODO: Factor out code in this block to share with `queue_for_sending`. - async move { - let ticket = match request_handle.reserve_request(self.channel).await { - Some(ticket) => ticket, - None => { - // We cannot queue the request, since the connection was closed. - return RequestGuard::new_error(RequestError::RemoteClosed(self.payload)); - } - }; - - { - let inner = Arc::new(RequestGuardInner::new()); - - match new_request_sender.send(NewOutgoingRequest { - ticket: ticket, - guard: inner.clone(), - payload: self.payload, - }) { - Ok(()) => RequestGuard { inner }, - Err(send_err) => { - RequestGuard::new_error(RequestError::RemoteClosed(send_err.0.payload)) - } - } - } - } - } - /// Schedules a new request on an outgoing channel if space is available. /// /// If no space is available, returns the [`JulietRpcRequestBuilder`] as an `Err` value, so it From a87a4ed3da701b800a4eb3ea7dd4bd9eb85d00d4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 12:32:40 +0200 Subject: [PATCH 690/735] juliet: Add tests for non-domain logic in `lib.rs` --- juliet/src/lib.rs | 121 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 119 insertions(+), 2 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 9ed82301bb..0f33eee3ae 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -169,7 +169,10 @@ impl Outcome { pub fn to_result(self) -> Result { match self { Outcome::Incomplete(missing) => { - panic!("did not expect incompletion by {} bytes when", missing) + panic!( + "did not expect incompletion by {} bytes converting to result", + missing + ) } Outcome::Fatal(e) => Err(e), Outcome::Success(s) => Ok(s), @@ -258,8 +261,9 @@ mod tests { prelude::Arbitrary, strategy::{Map, Strategy}, }; + use proptest_attr_macro::proptest; - use crate::{ChannelId, Id}; + use crate::{ChannelId, Id, Outcome}; impl Arbitrary for ChannelId { type Parameters = ::Parameters; @@ -282,4 +286,117 @@ mod tests { type Strategy = Map<::Strategy, fn(u16) -> Self>; } + + #[proptest] + fn id_type_smoke_tests(raw: u16) { + let id = Id::new(raw); + assert_eq!(id.get(), raw); + assert_eq!(u16::from(id), raw); + assert_eq!(raw.to_string(), id.to_string()); + } + + #[proptest] + fn channel_type_smoke_tests(raw: u8) { + let channel_id = ChannelId::new(raw); + assert_eq!(channel_id.get(), raw); + assert_eq!(u8::from(channel_id), raw); + assert_eq!(raw.to_string(), channel_id.to_string()); + } + + #[test] + fn outcome_incomplete_works_on_non_zero() { + assert!(matches!( + Outcome::<(), ()>::incomplete(1), + Outcome::Incomplete(_) + )); + + assert!(matches!( + Outcome::<(), ()>::incomplete(100), + Outcome::Incomplete(_) + )); + + assert!(matches!( + Outcome::<(), ()>::incomplete(u32::MAX as usize), + Outcome::Incomplete(_) + )); + } + + #[test] + #[should_panic(expected = "did not expect 0-byte `Incomplete`")] + fn outcome_incomplete_panics_on_0() { + let _ = Outcome::<(), ()>::incomplete(0); + } + + #[test] + #[should_panic(expected = "did not expect large usize")] + fn outcome_incomplete_panics_past_u32_max() { + let _ = Outcome::<(), ()>::incomplete(u32::MAX as usize + 1); + } + + #[test] + fn outcome_expect_works_on_success() { + let outcome: Outcome = Outcome::Success(12); + assert_eq!(outcome.expect("should not panic"), 12); + } + + #[test] + #[should_panic(expected = "is incomplete")] + fn outcome_expect_panics_on_incomplete() { + let outcome: Outcome = Outcome::incomplete(1); + outcome.expect("is incomplete"); + } + + #[test] + #[should_panic(expected = "is fatal")] + fn outcome_expect_panics_on_fatal() { + let outcome: Outcome = Outcome::Fatal(()); + outcome.expect("is fatal"); + } + + #[test] + fn outcome_map_err_works_correctly() { + let plus_1 = |x: u8| x as u16 + 1; + + let success = Outcome::Success(1); + assert_eq!(success.map_err(plus_1), Outcome::Success(1)); + + let incomplete = Outcome::<(), u8>::incomplete(1); + assert_eq!( + incomplete.map_err(plus_1), + Outcome::<(), u16>::incomplete(1) + ); + + let fatal = Outcome::Fatal(1); + assert_eq!(fatal.map_err(plus_1), Outcome::<(), u16>::Fatal(2)); + } + + #[test] + fn outcome_to_result_works_correctly() { + let success = Outcome::<_, ()>::Success(1); + assert_eq!(success.to_result(), Ok(1)); + + let fatal = Outcome::<(), _>::Fatal(1); + assert_eq!(fatal.to_result(), Err(1)); + } + + #[test] + #[should_panic(expected = "did not expect incompletion by 1 bytes converting to result")] + fn outcome_to_result_panics_on_incomplete() { + let _ = Outcome::<(), u8>::incomplete(1).to_result(); + } + + #[test] + fn try_outcome_works() { + fn try_outcome_func(input: Outcome) -> Outcome { + let value = try_outcome!(input); + Outcome::Success(value as u16 + 1) + } + + assert_eq!(try_outcome_func(Outcome::Success(1)), Outcome::Success(2)); + assert_eq!( + try_outcome_func(Outcome::incomplete(123)), + Outcome::incomplete(123) + ); + assert_eq!(try_outcome_func(Outcome::Fatal(-123)), Outcome::Fatal(-123)); + } } From 006aea471388cc1d45b5dd0ad0f714a8844e9858 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 12:35:58 +0200 Subject: [PATCH 691/735] juliet: Add tests for `ChannelConfiguration` --- juliet/src/lib.rs | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/juliet/src/lib.rs b/juliet/src/lib.rs index 0f33eee3ae..9ba4cc0579 100644 --- a/juliet/src/lib.rs +++ b/juliet/src/lib.rs @@ -196,7 +196,7 @@ macro_rules! try_outcome { } /// Channel configuration values that needs to be agreed upon by all clients. -#[derive(Copy, Clone, Debug)] +#[derive(Copy, Clone, Debug, Eq, PartialEq)] pub struct ChannelConfiguration { /// Maximum number of requests allowed on the channel. request_limit: u16, @@ -263,7 +263,7 @@ mod tests { }; use proptest_attr_macro::proptest; - use crate::{ChannelId, Id, Outcome}; + use crate::{ChannelConfiguration, ChannelId, Id, Outcome}; impl Arbitrary for ChannelId { type Parameters = ::Parameters; @@ -399,4 +399,22 @@ mod tests { ); assert_eq!(try_outcome_func(Outcome::Fatal(-123)), Outcome::Fatal(-123)); } + + #[test] + fn channel_configuration_can_be_built() { + let mut chan_cfg = ChannelConfiguration::new(); + assert_eq!(chan_cfg, ChannelConfiguration::default()); + + chan_cfg = chan_cfg.with_request_limit(123); + assert_eq!(chan_cfg.request_limit, 123); + + chan_cfg = chan_cfg.with_max_request_payload_size(99); + assert_eq!(chan_cfg.request_limit, 123); + assert_eq!(chan_cfg.max_request_payload_size, 99); + + chan_cfg = chan_cfg.with_max_response_payload_size(77); + assert_eq!(chan_cfg.request_limit, 123); + assert_eq!(chan_cfg.max_request_payload_size, 99); + assert_eq!(chan_cfg.max_response_payload_size, 77); + } } From bcd1cd9b709b31721b8b1e1ca6fa1f9b5cc37a41 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 12:41:42 +0200 Subject: [PATCH 692/735] juliet: Add tests for `util.rs` --- juliet/src/util.rs | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/juliet/src/util.rs b/juliet/src/util.rs index 4ed7af550a..4665f1140f 100644 --- a/juliet/src/util.rs +++ b/juliet/src/util.rs @@ -58,3 +58,39 @@ impl<'a> Display for PayloadFormat<'a> { Ok(()) } } + +#[cfg(test)] +mod tests { + use bytes::{Bytes, BytesMut}; + use proptest_attr_macro::proptest; + + use crate::util::PayloadFormat; + + use super::Index; + + #[proptest] + fn index_derefs_correctly(idx: usize) { + let buffer = BytesMut::new(); + let index = Index::new(&buffer, idx); + + assert_eq!(*index, idx); + } + + #[test] + fn payload_formatting_works() { + let payload_small = Bytes::from_static(b"hello"); + assert_eq!( + PayloadFormat(&payload_small).to_string(), + "68 65 6c 6c 6f (5 bytes)" + ); + + let payload_large = Bytes::from_static(b"goodbye, cruel world"); + assert_eq!( + PayloadFormat(&payload_large).to_string(), + "67 6f 6f 64 62 79 65 2c 20 63 72 75 65 6c 20 77 ... (20 bytes)" + ); + + let payload_empty = Bytes::from_static(b""); + assert_eq!(PayloadFormat(&payload_empty).to_string(), "(0 bytes)"); + } +} From 3b59927df7ba046d1ee448dc9ad245df3edb1083 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 12:54:17 +0200 Subject: [PATCH 693/735] juliet: Add `StutteringReader` utility type for testing --- juliet/src/io.rs | 251 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 251 insertions(+) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 30f0602484..8b173b16f0 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -1001,3 +1001,254 @@ where Ok(bytes_read) } + +#[cfg(test)] +mod tests { + use std::{ + collections::VecDeque, + io, + pin::Pin, + task::{Context, Poll}, + }; + + use futures::FutureExt; + use proptest_attr_macro::proptest; + use tokio::io::{AsyncRead, AsyncReadExt, ReadBuf}; + + /// A reader simulating a stuttering transmission. + #[derive(Debug, Default)] + struct StutteringReader { + /// Input events happening in the future. + input: VecDeque>>>, + } + + impl StutteringReader { + /// Adds a successful read to the reader. + fn push_data>>(&mut self, data: T) { + self.input.push_back(Ok(Some(data.into()))); + } + + /// Adds a delay, causing `Poll::Pending` to be returned by `AsyncRead::poll_read`. + fn push_pause(&mut self) { + self.input.push_back(Ok(None)); + } + + /// Adds an error to be produced by the reader. + fn push_error(&mut self, e: io::Error) { + self.input.push_back(Err(e)) + } + + /// Splits up a sequence of bytes into a series of reads, delays and intermittent + /// `Interrupted` errors. + /// + /// Assumes that `input_sequence` is a randomized byte string, as it will be used as a + /// source of entropy. + fn push_randomized_sequence(&mut self, mut input_sequence: &[u8]) { + /// Prime group order and maximum sequence length. + const ORDER: u8 = 13; + + fn gadd(a: u8, b: u8) -> u8 { + (a % ORDER + b % ORDER) % ORDER + } + + // State manipulated for pseudo-randomness. + let mut state = 5; + + while !input_sequence.is_empty() { + // Mix in bytes from the input sequence. + state = gadd(state, input_sequence[0]); + + // Decide what to do next: + match state { + // 1/ORDER chance of a pause. + 3 => self.push_pause(), + // 1/ORDER chance of an "interrupted" error. + 7 => self.push_error(io::Error::new(io::ErrorKind::Interrupted, "interrupted")), + // otherwise, determine a random chunk length and add a successful read. + _ => { + // We will read 1-13 bytes. + let max_run_length = + ((input_sequence[0] % ORDER + 1) as usize).min(input_sequence.len()); + self.push_data(&input_sequence[..max_run_length]); + + // Remove from input sequence. + input_sequence = &input_sequence[max_run_length..]; + + if input_sequence.is_empty() { + break; + } + } + } + + // Increment state if it would be cyclical otherwise. + if state == gadd(state, input_sequence[0]) { + state = (state + 1) % ORDER; + } + } + } + } + + impl AsyncRead for StutteringReader { + fn poll_read( + mut self: Pin<&mut Self>, + cx: &mut Context<'_>, + buf: &mut ReadBuf<'_>, + ) -> Poll> { + match self.input.pop_front() { + Some(Ok(Some(data))) => { + // Slightly slower to initialize twice, but safer. We don't need peak + // performance for this test code. + let dest = buf.initialize_unfilled(); + let split_point = dest.len().min(data.len()); + + let (to_write, remainder) = data.split_at(split_point); + dest[0..split_point].copy_from_slice(to_write); + buf.advance(to_write.len()); + + // If we did not read the entire chunk, add back to input stream. + if !remainder.is_empty() { + self.input.push_front(Ok(Some(remainder.into()))); + } + + Poll::Ready(Ok(())) + } + Some(Ok(None)) => { + // Return one pending, but ensure we're woken up immediately afterwards. + + let waker = cx.waker().clone(); + waker.wake(); + + Poll::Pending + } + Some(Err(e)) => { + // Return the scheduled error. + Poll::Ready(Err(e)) + } + None => { + // No data to read, the 0-byte read will be detected by the caller. + + Poll::Ready(Ok(())) + } + } + } + } + + #[test] + fn stuttering_reader_reads_correctly() { + let mut reader = StutteringReader::default(); + + reader.push_data(&b"foo"[..]); + reader.push_error(io::Error::new(io::ErrorKind::Interrupted, "interrupted")); + reader.push_data(&b"bar"[..]); + reader.push_pause(); + reader.push_data(&b"baz"[..]); + reader.push_pause(); + reader.push_error(io::Error::new(io::ErrorKind::BrokenPipe, "broken pipe")); + + let mut buf = [0u8; 1024]; + + let bytes_read = reader + .read(&mut buf) + .now_or_never() + .expect("should be ready") + .expect("should not fail"); + + assert_eq!(bytes_read, 3); + assert_eq!(&buf[..3], b"foo"); + + // Interrupted error. + let interrupted_err = reader + .read(&mut buf) + .now_or_never() + .expect("should be ready") + .expect_err("should fail"); + assert_eq!(interrupted_err.to_string(), "interrupted"); + + // Let's try a partial read next. + + let bytes_read = reader + .read(&mut buf[0..2]) + .now_or_never() + .expect("should be ready") + .expect("should not fail"); + + assert_eq!(bytes_read, 2); + assert_eq!(&buf[..2], b"ba"); + + let bytes_read = reader + .read(&mut buf) + .now_or_never() + .expect("should be ready") + .expect("should not fail"); + + assert_eq!(bytes_read, 1); + assert_eq!(&buf[..1], b"r"); + + assert!( + reader.read(&mut buf).now_or_never().is_none(), + "expected pending read" + ); + + // The waker has been called again already, so we attempt another read. + let bytes_read = reader + .read(&mut buf) + .now_or_never() + .expect("should be ready") + .expect("should not fail"); + + assert_eq!(bytes_read, 3); + assert_eq!(&buf[..3], b"baz"); + + assert!( + reader.read(&mut buf).now_or_never().is_none(), + "expected pending read" + ); + + let broken_pipe_err = reader + .read(&mut buf) + .now_or_never() + .expect("should be ready") + .expect_err("should fail"); + assert_eq!(broken_pipe_err.to_string(), "broken pipe"); + + // The final read should be a 0-length read. + let bytes_read = reader + .read(&mut buf) + .now_or_never() + .expect("should be ready") + .expect("should not fail"); + + assert_eq!(bytes_read, 0); + } + + #[proptest] + fn randomized_sequences_build_correctly(input: Vec) { + let mut reader = StutteringReader::default(); + reader.push_randomized_sequence(&input); + + let mut output: Vec = Vec::with_capacity(input.len()); + let mut buffer = [0u8; 512]; + loop { + match reader.read(&mut buffer).now_or_never() { + None => { + // `Poll::Pending`, ignore and try again. + } + Some(Ok(0)) => { + // We are done reading. + break; + } + Some(Ok(n)) => { + output.extend(&buffer[..n]); + } + Some(Err(e)) if e.kind() == io::ErrorKind::Interrupted => { + // Try again. + } + Some(Err(e)) => { + panic!("did not expect error {}", e); + } + } + } + + assert_eq!(output, input); + } +} From 77175bfad9e0e2121dbd7bd19de649fa811e861c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 14:30:47 +0200 Subject: [PATCH 694/735] juliet: Add testing suite around `read_until`, fixing bugs encountered while doing so --- juliet/src/io.rs | 118 ++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 101 insertions(+), 17 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 8b173b16f0..2f4bda68a3 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -178,7 +178,7 @@ pub struct IoCore { writer: W, /// Read buffer for incoming data. buffer: BytesMut, - /// How many more bytes are required until the next parse. + /// How many bytes are required until the next parse. /// /// Used to ensure we don't attempt to parse too often. next_parse_at: usize, @@ -427,9 +427,9 @@ where // Reading incoming data. read_result = read_until_bytesmut(&mut self.reader, &mut self.buffer, self.next_parse_at), if !self.shutting_down_due_to_err => { // Our read function will not return before `read_until_bytesmut` has completed. - let bytes_read = read_result.map_err(CoreError::ReadFailed)?; + let read_complete = read_result.map_err(CoreError::ReadFailed)?; - if bytes_read == 0 { + if !read_complete { // Remote peer hung up. return Ok(None); } @@ -968,10 +968,15 @@ impl Handle { /// Read bytes into a buffer. /// -/// Similar to [`AsyncReadExt::read_buf`], except it performs multiple read calls until at least -/// `target` bytes are in `buf`. +/// Similar to [`AsyncReadExt::read_buf`], except it performs zero or more read calls until at least +/// `target` bytes are in `buf`. Specifically, this function will /// -/// Will automatically retry if an [`io::ErrorKind::Interrupted`] is returned. +/// 1. Read bytes from `reader`, put them into `buf`, until there are at least `target` bytes +/// available in `buf` ready for consumption. +/// 2. Immediately retry when encountering any [`io::ErrorKind::Interrupted`] errors. +/// 3. Propagate upwards any other errors. +/// 4. Return `false` with less than `target` bytes available in `buf if the connection was closed. +/// 5. Return `true` on success, i.e. `buf` contains at least `target` bytes. /// /// # Cancellation safety /// @@ -980,26 +985,27 @@ async fn read_until_bytesmut<'a, R>( reader: &'a mut R, buf: &mut BytesMut, target: usize, -) -> io::Result +) -> io::Result where R: AsyncReadExt + Sized + Unpin, { - let mut bytes_read = 0; - buf.reserve(target); + let extra_required = target.saturating_sub(buf.remaining()); + buf.reserve(extra_required); while buf.remaining() < target { match reader.read_buf(buf).await { - Ok(n) => bytes_read += n, - Err(err) => { - if matches!(err.kind(), io::ErrorKind::Interrupted) { - continue; - } - return Err(err); + Ok(0) => return Ok(false), + Ok(_) => { + // We read some more bytes, continue. + } + Err(err) if matches!(err.kind(), io::ErrorKind::Interrupted) => { + // Ignore `Interrupted` errors, just retry. } + Err(err) => return Err(err), } } - Ok(bytes_read) + Ok(true) } #[cfg(test)] @@ -1011,10 +1017,13 @@ mod tests { task::{Context, Poll}, }; - use futures::FutureExt; + use bytes::BytesMut; + use futures::{Future, FutureExt}; use proptest_attr_macro::proptest; use tokio::io::{AsyncRead, AsyncReadExt, ReadBuf}; + use super::read_until_bytesmut; + /// A reader simulating a stuttering transmission. #[derive(Debug, Default)] struct StutteringReader { @@ -1069,6 +1078,9 @@ mod tests { // We will read 1-13 bytes. let max_run_length = ((input_sequence[0] % ORDER + 1) as usize).min(input_sequence.len()); + + assert!(max_run_length > 0); + self.push_data(&input_sequence[..max_run_length]); // Remove from input sequence. @@ -1251,4 +1263,76 @@ mod tests { assert_eq!(output, input); } + + /// Polls a future in a busy loop. + fn poll_forever(mut fut: F) -> ::Output { + loop { + let waker = futures::task::noop_waker(); + let mut cx = Context::from_waker(&waker); + + let fut_pinned = unsafe { Pin::new_unchecked(&mut fut) }; + match fut_pinned.poll(&mut cx) { + Poll::Ready(val) => return val, + Poll::Pending => continue, + } + } + } + + #[proptest] + fn read_until_bytesmut_into_empty_buffer_succeeds(input: Vec) { + // We are trying to read any sequence that is guaranteed to finish into an empty buffer: + for n in 1..(input.len()) { + let mut reader = StutteringReader::default(); + reader.push_randomized_sequence(&input); + + let mut buf = BytesMut::new(); + let read_successful = poll_forever(read_until_bytesmut(&mut reader, &mut buf, n)) + .expect("reading should not fail"); + + assert!(read_successful); + assert_eq!(buf[..n], input[..n]); + } + } + + #[proptest] + fn read_until_bytesmut_eventually_fills_buffer(input: Vec) { + // Given a stuttering reader with the correct amount of input available, check if we can + // fill it going one-by-one. + let mut reader = StutteringReader::default(); + reader.push_randomized_sequence(&input); + + let mut buf = BytesMut::new(); + + for target in 0..=input.len() { + let read_complete = poll_forever(read_until_bytesmut(&mut reader, &mut buf, target)) + .expect("reading should not fail"); + + assert!(read_complete); + } + + assert_eq!(buf.to_vec(), input); + } + + #[proptest] + fn read_until_bytesmut_gives_up_if_not_enough_available(input: Vec) { + for read_past in 1..(3 * input.len()) { + // Trying to read past a closed connection should result in `false` being returned. + let mut reader = StutteringReader::default(); + reader.push_randomized_sequence(&input); + + let mut buf = BytesMut::new(); + + let read_complete = poll_forever(read_until_bytesmut( + &mut reader, + &mut buf, + input.len() + read_past, + )) + .expect("reading should not fail"); + + assert!(!read_complete); + + // We still should find out input in `buf`. + assert_eq!(buf.to_vec(), input); + } + } } From ec1c22b746f7821a79ce053670eff14e411630ef Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 14:42:27 +0200 Subject: [PATCH 695/735] juliet: Add missing proptest regressions --- juliet/proptest-regressions/io.txt | 9 +++++++++ juliet/proptest-regressions/lib.txt | 7 +++++++ 2 files changed, 16 insertions(+) create mode 100644 juliet/proptest-regressions/io.txt create mode 100644 juliet/proptest-regressions/lib.txt diff --git a/juliet/proptest-regressions/io.txt b/juliet/proptest-regressions/io.txt new file mode 100644 index 0000000000..a5c396e11f --- /dev/null +++ b/juliet/proptest-regressions/io.txt @@ -0,0 +1,9 @@ +# Seeds for failure cases proptest has generated in the past. It is +# automatically read and these particular cases re-run before any +# novel cases are generated. +# +# It is recommended to check this file in to source control so that +# everyone who runs the test benefits from these saved cases. +cc a5ecee32b10b8720f0f7b09871835a7a9fd674f8b5b9c1c9ac68e3fb977c0345 # shrinks to input = [] +cc b44cf1d77da7a1db17b3174b7bd9b55dbe835cc5e85acd5fd3ec137714ef50d3 # shrinks to input = [30, 0, 0, 0, 0, 247, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] +cc 3cd7b8fb915fa8d98871218c077ab02a99b66eaf5d3306738331a55daddf9891 # shrinks to input = [117, 157, 0, 5, 0, 0, 0, 0, 0, 186, 0, 0, 0, 0, 45, 0, 0, 0, 0, 0, 0, 93, 0, 0, 41, 0, 0, 223, 0, 0, 130, 169, 29, 0, 0, 0, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] diff --git a/juliet/proptest-regressions/lib.txt b/juliet/proptest-regressions/lib.txt new file mode 100644 index 0000000000..4bd2b15808 --- /dev/null +++ b/juliet/proptest-regressions/lib.txt @@ -0,0 +1,7 @@ +# Seeds for failure cases proptest has generated in the past. It is +# automatically read and these particular cases re-run before any +# novel cases are generated. +# +# It is recommended to check this file in to source control so that +# everyone who runs the test benefits from these saved cases. +cc 298f935141dc04a8afb87a0f78f9491eb0fb39330b74592eb42fb3e78a859d61 # shrinks to raw = 0 From 01167270f0287bde95d0837a45bdaa78d3f8ecaf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 12 Sep 2023 15:47:18 +0200 Subject: [PATCH 696/735] juliet: Properly process cancellation of in-programm multi-frame requests --- juliet/src/protocol.rs | 87 +++++++++++++++++++++++++++++-- juliet/src/protocol/multiframe.rs | 10 ++++ 2 files changed, 93 insertions(+), 4 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 0ba0e44641..1da89547cb 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -890,14 +890,26 @@ impl JulietProtocol { channel.cancellation_allowance -= 1; buffer.advance(Header::SIZE); - // TODO: What to do with partially received multi-frame request? (needs tests) - #[cfg(feature = "tracing")] { use tracing::trace; trace!(%header, "received request cancellation"); } + // Multi-frame transfers that have not yet been completed are a special case, + // since they have never been reported, we can cancel these internally. + if let Some(in_progress_header) = + channel.current_multiframe_receiver.in_progress_header() + { + // We already know it is a cancellation and we are on the correct channel. + if in_progress_header.id() == header.id() { + // Cancel transfer. + channel.current_multiframe_receiver = MultiframeReceiver::default(); + // Remove tracked request. + channel.incoming_requests.remove(&header.id()); + } + } + // Check incoming request. If it was already cancelled or answered, ignore, as // it is valid to send wrong cancellation up to the cancellation allowance. // @@ -974,8 +986,8 @@ mod tests { use crate::{ header::{ErrorKind, Header, Kind}, protocol::{ - create_unchecked_response, payload_is_multi_frame, CompletedRead, - LocalProtocolViolation, + create_unchecked_response, multiframe::MultiframeReceiver, payload_is_multi_frame, + CompletedRead, LocalProtocolViolation, }, varint::Varint32, ChannelConfiguration, ChannelId, Id, Outcome, @@ -2381,4 +2393,71 @@ mod tests { env.assert_is_error_message(ErrorKind::FictitiousRequest, id, alice_result); } } + + #[test] + fn multiframe_messages_cancelled_correctly_after_partial_reception() { + // We send a single frame of a multi-frame payload. + let payload = VaryingPayload::MultiFrame; + + let mut env = TestingSetup::new(); + + let expected_id = Id::new(1); + let channel = env.common_channel; + + // Alice sends a multi-frame request. + let alices_multiframe_request = env + .get_peer_mut(Alice) + .create_request(channel, payload.get()) + .expect("should be able to create request"); + let req_header = alices_multiframe_request.header(); + + assert!(alices_multiframe_request.is_multi_frame(env.max_frame_size)); + + let frames = alices_multiframe_request.frames(); + let (frame, _additional_frames) = frames.next_owned(env.max_frame_size); + let mut buffer = BytesMut::from(frame.to_bytes().as_ref()); + + // The outcome of receiving a single frame should be a begun multi-frame read and 4 bytes + // incompletion asking for the next header. + let outcome = env.get_peer_mut(Bob).process_incoming(&mut buffer); + assert_eq!(outcome, Outcome::incomplete(4)); + + let bobs_channel = &env.get_peer_mut(Bob).channels[channel.get() as usize]; + let mut expected = HashSet::new(); + expected.insert(expected_id); + assert_eq!(bobs_channel.incoming_requests, expected); + assert!(matches!( + bobs_channel.current_multiframe_receiver, + MultiframeReceiver::InProgress { + header, + .. + } if header == req_header + )); + + // Now send the cancellation. + let cancellation_frames = env + .get_peer_mut(Alice) + .cancel_request(channel, expected_id) + .expect("alice should be able to create the cancellation") + .expect("should required to send cancellation") + .frames(); + let (cancellation_frame, _additional_frames) = + cancellation_frames.next_owned(env.max_frame_size); + let mut buffer = BytesMut::from(cancellation_frame.to_bytes().as_ref()); + + let bobs_outcome = env.get_peer_mut(Bob).process_incoming(&mut buffer); + + // Processing the cancellation should have no external effect. + assert_eq!(bobs_outcome, Outcome::incomplete(4)); + + // Finally, check if the state is as expected. Since it is an incomplete multi-channel + // message, we must cancel the transfer early. + let bobs_channel = &env.get_peer_mut(Bob).channels[channel.get() as usize]; + + assert!(bobs_channel.incoming_requests.is_empty()); + assert!(matches!( + bobs_channel.current_multiframe_receiver, + MultiframeReceiver::Ready + )); + } } diff --git a/juliet/src/protocol/multiframe.rs b/juliet/src/protocol/multiframe.rs index 988a922f75..bf26da1baf 100644 --- a/juliet/src/protocol/multiframe.rs +++ b/juliet/src/protocol/multiframe.rs @@ -179,12 +179,22 @@ impl MultiframeReceiver { /// Determines whether given `new_header` would be a new transfer if accepted. /// /// If `false`, `new_header` would indicate a continuation of an already in-progress transfer. + #[inline] pub(super) fn is_new_transfer(&self, new_header: Header) -> bool { match self { MultiframeReceiver::Ready => true, MultiframeReceiver::InProgress { header, .. } => *header != new_header, } } + + /// Returns the ID of the in-progress transfer. + #[inline] + pub(super) fn in_progress_header(&self) -> Option

{ + match self { + MultiframeReceiver::Ready => None, + MultiframeReceiver::InProgress { header, .. } => Some(*header), + } + } } /// Information about an initial frame in a given buffer. From 0cbe00eadbae0063111f16091a0b9bf8202eabef Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Wed, 13 Sep 2023 14:58:02 +0200 Subject: [PATCH 697/735] Update node/src/effect.rs (typo) Co-authored-by: Fraser Hutchison <190532+Fraser999@users.noreply.github.com> --- node/src/effect.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/effect.rs b/node/src/effect.rs index 437c7d6b5b..20b96677ea 100644 --- a/node/src/effect.rs +++ b/node/src/effect.rs @@ -670,7 +670,7 @@ impl EffectBuilder { /// Sends a network message. /// /// The message is queued and sent, without any delivery guarantees. Will return after the - /// message has been buffered by the networking stack and is thus is subject to backpressure + /// message has been buffered by the networking stack and is thus subject to backpressure /// from the receiving peer. /// /// If the message cannot be buffered immediately, `send_message` will wait until there is room From 652cc4db3928932af4a7c07efa318aff6177f28f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Wed, 13 Sep 2023 15:07:38 +0200 Subject: [PATCH 698/735] juliet: Add `Debug` impl for `JulietRpcServer` and `JulietRpcRequestBuilder`' --- juliet/src/io.rs | 1 + juliet/src/rpc.rs | 3 +++ 2 files changed, 4 insertions(+) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 2f4bda68a3..1594c88db5 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -168,6 +168,7 @@ pub struct IoId(u64); /// items to be sent. /// /// Once instantiated, a continuous polling of [`IoCore::next_event`] is expected. +#[derive(Debug)] pub struct IoCore { /// The actual protocol state. juliet: JulietProtocol, diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 4b8c04af7b..e38794636c 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -101,6 +101,7 @@ pub struct JulietRpcClient { /// [`queue_for_sending`](JulietRpcRequestBuilder::queue_for_sending) or /// [`try_queue_for_sending`](JulietRpcRequestBuilder::try_queue_for_sending), returning a /// [`RequestGuard`], which can be used to await the results of the request. +#[derive(Debug)] pub struct JulietRpcRequestBuilder<'a, const N: usize> { client: &'a JulietRpcClient, channel: ChannelId, @@ -117,6 +118,7 @@ pub struct JulietRpcRequestBuilder<'a, const N: usize> { /// ## Shutdown /// /// The server will automatically be shutdown if the last [`JulietRpcClient`] is dropped. +#[derive(Debug)] pub struct JulietRpcServer { core: IoCore, handle: Handle, @@ -125,6 +127,7 @@ pub struct JulietRpcServer { } /// Internal structure representing a new outgoing request. +#[derive(Debug)] struct NewOutgoingRequest { /// The already reserved ticket. ticket: RequestTicket, From dfa09cbff238dd24edbbc658e2c7e6fc3a639b03 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 12:54:23 +0200 Subject: [PATCH 699/735] juliet: Add preliminary timeout support --- Cargo.lock | 39 +++++++++++++- juliet/Cargo.toml | 3 +- juliet/src/io.rs | 2 +- juliet/src/rpc.rs | 132 ++++++++++++++++++++++++++++++++++++++++++++-- 4 files changed, 168 insertions(+), 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index dda49a049c..63a016e97b 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -675,7 +675,7 @@ dependencies = [ "prometheus", "proptest", "proptest-derive", - "quanta", + "quanta 0.7.2", "rand", "rand_chacha", "rand_core", @@ -3256,6 +3256,7 @@ dependencies = [ "proptest", "proptest-attr-macro", "proptest-derive", + "quanta 0.11.1", "rand", "static_assertions", "strum 0.25.0", @@ -3399,6 +3400,15 @@ dependencies = [ "libc", ] +[[package]] +name = "mach2" +version = "0.4.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6d0d1830bcd151a6fc4aea1369af235b36c1528fe976b8ff678683c9995eade8" +dependencies = [ + "libc", +] + [[package]] name = "main-purse" version = "0.1.0" @@ -4320,7 +4330,23 @@ dependencies = [ "libc", "mach", "once_cell", - "raw-cpuid", + "raw-cpuid 9.1.1", + "winapi", +] + +[[package]] +name = "quanta" +version = "0.11.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a17e662a7a8291a865152364c20c7abc5e60486ab2001e8ec10b24862de0b9ab" +dependencies = [ + "crossbeam-utils 0.8.15", + "libc", + "mach2", + "once_cell", + "raw-cpuid 10.7.0", + "wasi", + "web-sys", "winapi", ] @@ -4427,6 +4453,15 @@ dependencies = [ "bitflags 1.3.2", ] +[[package]] +name = "raw-cpuid" +version = "10.7.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6c297679cb867470fa8c9f67dbba74a78d78e3e98d7cf2b08d6d71540f797332" +dependencies = [ + "bitflags 1.3.2", +] + [[package]] name = "rayon" version = "1.7.0" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index d8b74ab8f8..121466d800 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -13,9 +13,10 @@ bytes = "1.4.0" futures = "0.3.28" hex_fmt = "0.3.0" once_cell = "1.18.0" +quanta = "0.11.1" strum = { version = "0.25.0", features = ["derive"] } thiserror = "1.0.40" -tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync" ] } +tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync", "time" ] } tracing = { version = "0.1.37", optional = true } [dev-dependencies] diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 1594c88db5..110aca6a3c 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -158,7 +158,7 @@ pub enum CoreError { /// Request layer IO IDs are unique across the program per request that originated from the local /// endpoint. They are used to allow for buffering large numbers of items without exhausting the /// pool of protocol level request IDs, which are limited to `u16`s. -#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] +#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)] pub struct IoId(u64); /// IO layer for the juliet protocol. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index e38794636c..9e759c2780 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -20,7 +20,7 @@ //! handled locally, since the function is also responsible for performing the underlying IO. use std::{ - collections::HashMap, + collections::{BinaryHeap, HashMap}, fmt::{self, Display, Formatter}, sync::Arc, time::Duration, @@ -29,6 +29,7 @@ use std::{ use bytes::Bytes; use once_cell::sync::OnceCell; +use quanta::{Clock, Instant}; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncWrite}, @@ -51,6 +52,8 @@ use crate::{ pub struct RpcBuilder { /// The IO core builder used. core: IoCoreBuilder, + /// `quanta` clock to use, can be used to instantiate a mock clock. + clock: Clock, } impl RpcBuilder { @@ -58,7 +61,10 @@ impl RpcBuilder { /// /// The builder can be reused to create instances for multiple connections. pub fn new(core: IoCoreBuilder) -> Self { - RpcBuilder { core } + RpcBuilder { + core, + clock: Default::default(), + } } /// Creates new RPC client and server instances. @@ -80,10 +86,20 @@ impl RpcBuilder { handle: core_handle.downgrade(), pending: Default::default(), new_requests_receiver, + clock: self.clock.clone(), + timeouts: BinaryHeap::new(), }; (client, server) } + + /// Sets the [`quanta::Clock`] source. + /// + /// Can be used to pass in a mock clock, e.g. from [`quanta::Clock::mock`]. + pub fn with_clock(mut self, clock: Clock) -> Self { + self.clock = clock; + self + } } /// Juliet RPC client. @@ -120,10 +136,18 @@ pub struct JulietRpcRequestBuilder<'a, const N: usize> { /// The server will automatically be shutdown if the last [`JulietRpcClient`] is dropped. #[derive(Debug)] pub struct JulietRpcServer { + /// The `io` module core used by this server. core: IoCore, + /// Handle to the `IoCore`, cloned for clients. handle: Handle, + /// Map of requests that are still pending. pending: HashMap>, + /// Receiver for request scheduled by `JulietRpcClient`s. new_requests_receiver: UnboundedReceiver, + /// Clock source for timeouts. + clock: Clock, + /// Heap of pending timeouts. + timeouts: BinaryHeap<(Instant, IoId)>, } /// Internal structure representing a new outgoing request. @@ -135,6 +159,8 @@ struct NewOutgoingRequest { guard: Arc, /// Payload of the request. payload: Option, + /// When the request is supposed to time out. + expires: Option, } #[derive(Debug)] @@ -177,6 +203,37 @@ impl JulietRpcClient { } } +struct DrainConditional<'a, T, F> { + heap: &'a mut BinaryHeap, + predicate: F, +} + +fn drain_heap_while(heap: &mut BinaryHeap, predicate: F) -> DrainConditional<'_, T, F> { + DrainConditional { heap, predicate } +} + +impl<'a, T, F> Iterator for DrainConditional<'a, T, F> +where + F: FnMut(&T) -> bool, + T: Ord + PartialOrd + 'static, +{ + type Item = T; + + #[inline] + fn next(&mut self) -> Option { + let candidate = self.heap.peek()?; + if (self.predicate)(candidate) { + Some( + self.heap + .pop() + .expect("did not expect heap top to disappear"), + ) + } else { + None + } + } +} + /// An error produced by the RPC error. #[derive(Debug, Error)] pub enum RpcServerError { @@ -205,15 +262,32 @@ where /// `next_request` as soon as possible. pub async fn next_request(&mut self) -> Result, RpcServerError> { loop { + let now = self.clock.recent(); + + // Process all the timeouts. + let until_timeout_check = self.process_timeouts(now); + let timeout_check = tokio::time::sleep(until_timeout_check); + tokio::select! { biased; + _ = timeout_check => { + // Enough time has elapsed that we need to check for timeouts, which we will + // do the next time we loop. + } + opt_new_request = self.new_requests_receiver.recv() => { - if let Some(NewOutgoingRequest { ticket, guard, payload }) = opt_new_request { + if let Some(NewOutgoingRequest { ticket, guard, payload, expires }) = opt_new_request { match self.handle.enqueue_request(ticket, payload) { Ok(io_id) => { // The request will be sent out, store it in our pending map. self.pending.insert(io_id, guard); + + // If a timeout has been configured, add it to the timeouts map. + if let Some(expires) = expires { + self.timeouts.push((expires, io_id)); + + } }, Err(payload) => { // Failed to send -- time to shut down. @@ -271,12 +345,35 @@ where }; } } + + /// Process all pending timeouts, setting and notifying `RequestError::TimedOut` on timeout. + /// + /// Returns the duration until the next timeout check needs to take place if timeouts are not + /// modified in the interim. + fn process_timeouts(&mut self, now: Instant) -> Duration { + let is_expired = |(when, _): &(_, _)| *when <= now; + + for (_, io_id) in drain_heap_while(&mut self.timeouts, is_expired) { + // If not removed already through other means, set and notify about timeout. + if let Some(guard_ref) = self.pending.remove(&io_id) { + guard_ref.set_and_notify(Err(RequestError::TimedOut)); + } + } + + // Calculate new delay for timeouts. + if let Some((when, _)) = self.timeouts.peek() { + when.duration_since(now) + } else { + Duration::from_secs(3600) + + // 1 hour dummy sleep, since we cannot have a conditional future. + } + } } impl Drop for JulietRpcServer { fn drop(&mut self) { // When the server is dropped, ensure all waiting requests are informed. - self.new_requests_receiver.close(); for (_io_id, guard) in self.pending.drain() { @@ -287,6 +384,7 @@ impl Drop for JulietRpcServer { ticket: _, guard, payload, + expires: _, }) = self.new_requests_receiver.try_recv() { guard.set_and_notify(Err(RequestError::RemoteClosed(payload))) @@ -362,10 +460,27 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { fn do_enqueue_request(self, ticket: RequestTicket) -> RequestGuard { let inner = Arc::new(RequestGuardInner::new()); + // TODO: Thread timing through interface. Maybe attach to client? Clock is 40 bytes. + let clock = quanta::Clock::default(); + + // If a timeout is set, calculate expiration time. + let expires = if let Some(timeout) = self.timeout { + match clock.recent().checked_add(timeout) { + Some(expires) => Some(expires), + None => { + // The timeout is so high that the resulting `Instant` would overflow. + return RequestGuard::new_error(RequestError::TimeoutOverflow(timeout)); + } + } + } else { + None + }; + match self.client.new_request_sender.send(NewOutgoingRequest { ticket, guard: inner.clone(), payload: self.payload, + expires, }) { Ok(()) => RequestGuard { inner }, Err(send_err) => { @@ -396,6 +511,11 @@ pub enum RequestError { /// The request was cancelled on our end due to a timeout. #[error("request timed out")] TimedOut, + /// Local timeout overflow. + /// + /// The given timeout would cause a clock overflow. + #[error("requested timeout ({0:?}) would cause clock overflow")] + TimeoutOverflow(Duration), /// Remote responded with cancellation. /// /// Instead of sending a response, the remote sent a cancellation. @@ -721,4 +841,8 @@ mod tests { assert_eq!(response, Some(payload)); } + + // TODO: Test draining functions + // TODO: Ensure set_and_notify multiple times is harmless. + // TODO: Test actual timeouts. } From b612e419c6b1fe5dc4eb129a4bf16b6358cccc85 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 14:11:42 +0200 Subject: [PATCH 700/735] juliet: Rename `try_wait_for_response` to `try_get_response` --- juliet/src/rpc.rs | 122 ++++++++++++++++++++++++--------- node/src/components/network.rs | 2 +- 2 files changed, 89 insertions(+), 35 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 9e759c2780..fae0e63cde 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -203,37 +203,6 @@ impl JulietRpcClient { } } -struct DrainConditional<'a, T, F> { - heap: &'a mut BinaryHeap, - predicate: F, -} - -fn drain_heap_while(heap: &mut BinaryHeap, predicate: F) -> DrainConditional<'_, T, F> { - DrainConditional { heap, predicate } -} - -impl<'a, T, F> Iterator for DrainConditional<'a, T, F> -where - F: FnMut(&T) -> bool, - T: Ord + PartialOrd + 'static, -{ - type Item = T; - - #[inline] - fn next(&mut self) -> Option { - let candidate = self.heap.peek()?; - if (self.predicate)(candidate) { - Some( - self.heap - .pop() - .expect("did not expect heap top to disappear"), - ) - } else { - None - } - } -} - /// An error produced by the RPC error. #[derive(Debug, Error)] pub enum RpcServerError { @@ -606,7 +575,7 @@ impl RequestGuard { /// /// Like [`wait_for_response`](Self::wait_for_response), except that instead of waiting, it will /// return `Err(self)` if the peer was not ready yet. - pub fn try_wait_for_response(self) -> Result, RequestError>, Self> { + pub fn try_get_response(self) -> Result, RequestError>, Self> { if self.inner.outcome.get().is_some() { Ok(self.take_inner()) } else { @@ -749,8 +718,52 @@ impl Drop for IncomingRequest { } } +/// An iterator draining items out of a heap based on a predicate. +/// +/// See [`drain_heap_while`] for details. +struct DrainConditional<'a, T, F> { + /// Heap to be drained. + heap: &'a mut BinaryHeap, + /// Predicate function to determine whether or not to drain a specific element. + predicate: F, +} + +/// Removes ites from the top of a heap while a given predicate is true. +/// +/// Will take items from `heap` as long as `predicate` evaluates to `true`. +fn drain_heap_while bool>( + heap: &mut BinaryHeap, + predicate: F, +) -> DrainConditional<'_, T, F> { + DrainConditional { heap, predicate } +} + +impl<'a, T, F> Iterator for DrainConditional<'a, T, F> +where + F: FnMut(&T) -> bool, + T: Ord + PartialOrd + 'static, +{ + type Item = T; + + #[inline] + fn next(&mut self) -> Option { + let candidate = self.heap.peek()?; + if (self.predicate)(candidate) { + Some( + self.heap + .pop() + .expect("did not expect heap top to disappear"), + ) + } else { + None + } + } +} + #[cfg(test)] mod tests { + use std::collections::BinaryHeap; + use bytes::Bytes; use tokio::io::{DuplexStream, ReadHalf, WriteHalf}; @@ -759,7 +772,7 @@ mod tests { ChannelId, }; - use super::{JulietRpcClient, JulietRpcServer}; + use super::{drain_heap_while, JulietRpcClient, JulietRpcServer}; #[allow(clippy::type_complexity)] // We'll allow it in testing. fn setup_peers( @@ -842,7 +855,48 @@ mod tests { assert_eq!(response, Some(payload)); } - // TODO: Test draining functions + #[test] + fn drain_works() { + let mut heap = BinaryHeap::new(); + + heap.push(5); + heap.push(3); + heap.push(2); + heap.push(7); + heap.push(11); + heap.push(13); + + assert!(drain_heap_while(&mut heap, |_| false).next().is_none()); + assert!(drain_heap_while(&mut heap, |&v| v > 14).next().is_none()); + + assert_eq!( + drain_heap_while(&mut heap, |&v| v > 10).collect::>(), + vec![13, 11] + ); + + assert_eq!( + drain_heap_while(&mut heap, |&v| v > 10).collect::>(), + vec![] + ); + + assert_eq!( + drain_heap_while(&mut heap, |&v| v > 2).collect::>(), + vec![7, 5, 3] + ); + + assert_eq!( + drain_heap_while(&mut heap, |_| true).collect::>(), + vec![2] + ); + } + + #[test] + fn drain_on_empty_works() { + let mut empty_heap = BinaryHeap::::new(); + + assert!(drain_heap_while(&mut empty_heap, |_| true).next().is_none()); + } + // TODO: Ensure set_and_notify multiple times is harmless. // TODO: Test actual timeouts. } diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 4a9f3d9a81..c8d8a0dea4 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -1489,7 +1489,7 @@ where /// `RequestGuard`. Potential errors that are available early are dropped, later errors discarded. #[inline] fn process_request_guard(channel: Channel, guard: RequestGuard) { - match guard.try_wait_for_response() { + match guard.try_get_response() { Ok(Ok(_outcome)) => { // We got an incredibly quick round-trip, lucky us! Nothing to do. } From 83389b076502cd64f7628779bcdae6d7696b15cf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 14:30:04 +0200 Subject: [PATCH 701/735] juliet: Add tests for `RequestGuard` semantics --- juliet/src/protocol.rs | 2 +- juliet/src/rpc.rs | 104 +++++++++++++++++++++++++++++++++++++++-- 2 files changed, 101 insertions(+), 5 deletions(-) diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index 1da89547cb..cbf3ade637 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -418,7 +418,7 @@ pub enum CompletedRead { /// /// Higher level layers like [`rpc`](crate::rpc) should make it impossible to encounter /// [`LocalProtocolViolation`]s. -#[derive(Copy, Clone, Debug, Error)] +#[derive(Copy, Clone, Debug, Eq, Error, PartialEq)] pub enum LocalProtocolViolation { /// A request was not sent because doing so would exceed the request limit on channel. /// diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index fae0e63cde..97b1a38bc2 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -462,7 +462,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// An RPC request error. /// /// Describes the reason a request did not yield a response. -#[derive(Clone, Debug, Error)] +#[derive(Clone, Debug, Eq, Error, PartialEq)] pub enum RequestError { /// Remote closed, could not send. /// @@ -762,9 +762,10 @@ where #[cfg(test)] mod tests { - use std::collections::BinaryHeap; + use std::{collections::BinaryHeap, sync::Arc}; use bytes::Bytes; + use futures::FutureExt; use tokio::io::{DuplexStream, ReadHalf, WriteHalf}; use crate::{ @@ -772,7 +773,9 @@ mod tests { ChannelId, }; - use super::{drain_heap_while, JulietRpcClient, JulietRpcServer}; + use super::{ + drain_heap_while, JulietRpcClient, JulietRpcServer, RequestGuard, RequestGuardInner, + }; #[allow(clippy::type_complexity)] // We'll allow it in testing. fn setup_peers( @@ -855,6 +858,100 @@ mod tests { assert_eq!(response, Some(payload)); } + #[test] + fn request_guard_polls_waiting_with_no_response() { + let inner = Arc::new(RequestGuardInner::new()); + let guard = RequestGuard { inner }; + + // Initially, the guard should not have a response. + let guard = guard + .try_get_response() + .expect_err("should not have a result"); + + // Polling it should also result in a wait. + let waiting = guard.wait_for_response(); + + assert!(waiting.now_or_never().is_none()); + } + + #[test] + fn request_guard_polled_early_returns_response_when_available() { + let inner = Arc::new(RequestGuardInner::new()); + let guard = RequestGuard { + inner: inner.clone(), + }; + + // Waiter created before response sent. + let waiting = guard.wait_for_response(); + inner.set_and_notify(Ok(None)); + + assert_eq!(waiting.now_or_never().expect("should poll ready"), Ok(None)); + } + + #[test] + fn request_guard_polled_late_returns_response_when_available() { + let inner = Arc::new(RequestGuardInner::new()); + let guard = RequestGuard { + inner: inner.clone(), + }; + + inner.set_and_notify(Ok(None)); + + // Waiter created after response sent. + let waiting = guard.wait_for_response(); + + assert_eq!(waiting.now_or_never().expect("should poll ready"), Ok(None)); + } + + #[test] + fn request_guard_get_returns_correct_value_when_available() { + let inner = Arc::new(RequestGuardInner::new()); + let guard = RequestGuard { + inner: inner.clone(), + }; + + // Waiter created and polled before notification. + let guard = guard + .try_get_response() + .expect_err("should not have a result"); + + let payload_str = b"hello, world"; + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str)))); + + assert_eq!( + guard.try_get_response().expect("should be ready"), + Ok(Some(Bytes::from_static(payload_str))) + ); + } + + #[test] + fn request_guard_harmless_to_set_multiple_times() { + // We want first write wins semantics here. + let inner = Arc::new(RequestGuardInner::new()); + let guard = RequestGuard { + inner: inner.clone(), + }; + + let payload_str = b"hello, world"; + let payload_str2 = b"goodbye, world"; + + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + + assert_eq!( + guard.try_get_response().expect("should be ready"), + Ok(Some(Bytes::from_static(payload_str))) + ); + + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + inner.set_and_notify(Ok(Some(Bytes::from_static(payload_str2)))); + } + #[test] fn drain_works() { let mut heap = BinaryHeap::new(); @@ -897,6 +994,5 @@ mod tests { assert!(drain_heap_while(&mut empty_heap, |_| true).next().is_none()); } - // TODO: Ensure set_and_notify multiple times is harmless. // TODO: Test actual timeouts. } From ba39235b1765f5c89020569c741e4af73e05d809 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 14:35:23 +0200 Subject: [PATCH 702/735] juliet: Add test for request timeouts --- juliet/src/rpc.rs | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 97b1a38bc2..cd781fca3f 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -762,7 +762,7 @@ where #[cfg(test)] mod tests { - use std::{collections::BinaryHeap, sync::Arc}; + use std::{collections::BinaryHeap, sync::Arc, time::Duration}; use bytes::Bytes; use futures::FutureExt; @@ -825,6 +825,7 @@ mod tests { { println!("recieved {}", req); let payload = req.payload().clone(); + tokio::time::sleep(Duration::from_millis(50)).await; req.respond(payload); } @@ -855,7 +856,18 @@ mod tests { .await .expect("request failed"); - assert_eq!(response, Some(payload)); + assert_eq!(response, Some(payload.clone())); + + // Create a second request with a timeout. + let response_err = rpc_client + .create_request(ChannelId::new(0)) + .with_payload(payload.clone()) + .with_timeout(Duration::from_millis(25)) + .queue_for_sending() + .await + .wait_for_response() + .await; + assert_eq!(response_err, Err(crate::rpc::RequestError::TimedOut)); } #[test] @@ -993,6 +1005,4 @@ mod tests { assert!(drain_heap_while(&mut empty_heap, |_| true).next().is_none()); } - - // TODO: Test actual timeouts. } From 5c7c26747dfa6155ee36902a4c6809894610e08b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 14:38:26 +0200 Subject: [PATCH 703/735] juliet: Fix use of `clock.recent()` to allow timeouts to work --- juliet/src/rpc.rs | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index cd781fca3f..28046fda31 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -231,7 +231,7 @@ where /// `next_request` as soon as possible. pub async fn next_request(&mut self) -> Result, RpcServerError> { loop { - let now = self.clock.recent(); + let now = self.clock.now(); // Process all the timeouts. let until_timeout_check = self.process_timeouts(now); @@ -378,8 +378,6 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { /// Sets the timeout for the request. /// /// By default, there is an infinite timeout. - /// - /// **TODO**: Currently the timeout feature is not implemented. pub const fn with_timeout(mut self, timeout: Duration) -> Self { self.timeout = Some(timeout); self @@ -434,7 +432,7 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { // If a timeout is set, calculate expiration time. let expires = if let Some(timeout) = self.timeout { - match clock.recent().checked_add(timeout) { + match clock.now().checked_add(timeout) { Some(expires) => Some(expires), None => { // The timeout is so high that the resulting `Instant` would overflow. From 5811777406251aa7d903de27ba7dcc1c33c70c4c Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 14:56:24 +0200 Subject: [PATCH 704/735] juliet: Factor out setup code from RPC smoke test --- juliet/src/rpc.rs | 85 ++++++++++++++++++++++++++++++----------------- 1 file changed, 55 insertions(+), 30 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 28046fda31..0f395240e5 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -800,8 +800,49 @@ mod tests { (peer_a, peer_b) } - #[tokio::test] - async fn basic_smoke_test() { + /// Runs an echo server in the background. + /// + /// The server keeps running as long as the future is polled. + async fn run_echo_server( + server: ( + JulietRpcClient, + JulietRpcServer, WriteHalf>, + ), + ) { + let (rpc_client, mut rpc_server) = server; + + while let Some(req) = rpc_server + .next_request() + .await + .expect("error receiving request") + { + println!("recieved {}", req); + let payload = req.payload().clone(); + // It takes roughly 12 ms one-way for sound from the base of the Matterhorn to reach + // the summit, so we expect a single yodel to echo within ~ 24 ms, which is use as a + // reference here. + tokio::time::sleep(Duration::from_millis(2 * 12)).await; + req.respond(payload); + } + + drop(rpc_client); + } + + /// Runs the necessary server functionality for the RPC client. + async fn run_echo_client( + mut rpc_server: JulietRpcServer, WriteHalf>, + ) { + while let Some(inc) = rpc_server + .next_request() + .await + .expect("client rpc_server error") + { + panic!("did not expect to receive {:?} on client", inc); + } + } + + /// Completely sets up an environment with a running echo server, returning a client. + fn create_rpc_echo_server_env() -> JulietRpcClient<2> { let builder = RpcBuilder::new(IoCoreBuilder::new( ProtocolBuilder::<2>::with_default_channel_config( ChannelConfiguration::new() @@ -812,36 +853,20 @@ mod tests { let (client, server) = setup_peers(builder); - // Spawn an echo-server. - tokio::spawn(async move { - let (rpc_client, mut rpc_server) = server; - - while let Some(req) = rpc_server - .next_request() - .await - .expect("error receiving request") - { - println!("recieved {}", req); - let payload = req.payload().clone(); - tokio::time::sleep(Duration::from_millis(50)).await; - req.respond(payload); - } - - drop(rpc_client); - }); + // Spawn the server. + tokio::spawn(run_echo_server(server)); - let (rpc_client, mut rpc_server) = client; + let (rpc_client, rpc_server) = client; // Run the background process for the client. - tokio::spawn(async move { - while let Some(inc) = rpc_server - .next_request() - .await - .expect("client rpc_server error") - { - panic!("did not expect to receive {:?} on client", inc); - } - }); + tokio::spawn(run_echo_client(rpc_server)); + + rpc_client + } + + #[tokio::test] + async fn basic_smoke_test() { + let rpc_client = create_rpc_echo_server_env(); let payload = Bytes::from(&b"foobar"[..]); @@ -860,7 +885,7 @@ mod tests { let response_err = rpc_client .create_request(ChannelId::new(0)) .with_payload(payload.clone()) - .with_timeout(Duration::from_millis(25)) + .with_timeout(Duration::from_millis(5)) .queue_for_sending() .await .wait_for_response() From ae084e65283dddada90a72d4cd897923457852ee Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 15:04:13 +0200 Subject: [PATCH 705/735] juliet: Add test for overlapping timeouts --- juliet/src/rpc.rs | 50 ++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 43 insertions(+), 7 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 0f395240e5..35d6b5ae3a 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -767,8 +767,10 @@ mod tests { use tokio::io::{DuplexStream, ReadHalf, WriteHalf}; use crate::{ - io::IoCoreBuilder, protocol::ProtocolBuilder, rpc::RpcBuilder, ChannelConfiguration, - ChannelId, + io::IoCoreBuilder, + protocol::ProtocolBuilder, + rpc::{RequestError, RpcBuilder}, + ChannelConfiguration, ChannelId, }; use super::{ @@ -800,6 +802,10 @@ mod tests { (peer_a, peer_b) } + // It takes about 12 ms one-way for sound from the base of the Matterhorn to reach the summit, + // so we expect a single yodel to echo within ~ 24 ms, which is use as a reference here. + const ECHO_DELAY: Duration = Duration::from_millis(2 * 12); + /// Runs an echo server in the background. /// /// The server keeps running as long as the future is polled. @@ -818,10 +824,8 @@ mod tests { { println!("recieved {}", req); let payload = req.payload().clone(); - // It takes roughly 12 ms one-way for sound from the base of the Matterhorn to reach - // the summit, so we expect a single yodel to echo within ~ 24 ms, which is use as a - // reference here. - tokio::time::sleep(Duration::from_millis(2 * 12)).await; + + tokio::time::sleep(ECHO_DELAY).await; req.respond(payload); } @@ -885,7 +889,7 @@ mod tests { let response_err = rpc_client .create_request(ChannelId::new(0)) .with_payload(payload.clone()) - .with_timeout(Duration::from_millis(5)) + .with_timeout(ECHO_DELAY / 2) .queue_for_sending() .await .wait_for_response() @@ -893,6 +897,38 @@ mod tests { assert_eq!(response_err, Err(crate::rpc::RequestError::TimedOut)); } + #[tokio::test] + async fn timeout_processed_in_correct_order() { + let rpc_client = create_rpc_echo_server_env(); + + let payload_short = Bytes::from(&b"timeout check short"[..]); + let payload_long = Bytes::from(&b"timeout check long"[..]); + + // Sending two requests with different timeouts will result in both being added to the heap + // of timeouts to check. If the internal heap is in the wrong order, the bigger timeout will + // prevent the smaller one from being processed. + + let req_short = rpc_client + .create_request(ChannelId::new(0)) + .with_payload(payload_short) + .with_timeout(ECHO_DELAY / 2) + .queue_for_sending() + .await; + + let req_long = rpc_client + .create_request(ChannelId::new(0)) + .with_payload(payload_long.clone()) + .with_timeout(ECHO_DELAY * 100) + .queue_for_sending() + .await; + + let result_short = req_short.wait_for_response().await; + let result_long = req_long.wait_for_response().await; + + assert_eq!(result_short, Err(RequestError::TimedOut)); + assert_eq!(result_long, Ok(Some(payload_long))); + } + #[test] fn request_guard_polls_waiting_with_no_response() { let inner = Arc::new(RequestGuardInner::new()); From 1f540ccff6f620285c1dd0271e97668ff3481ff8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 15:09:28 +0200 Subject: [PATCH 706/735] juliet: Use correct heap order for timeouts --- juliet/src/rpc.rs | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 35d6b5ae3a..b491d782a9 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -20,6 +20,7 @@ //! handled locally, since the function is also responsible for performing the underlying IO. use std::{ + cmp::Reverse, collections::{BinaryHeap, HashMap}, fmt::{self, Display, Formatter}, sync::Arc, @@ -147,7 +148,7 @@ pub struct JulietRpcServer { /// Clock source for timeouts. clock: Clock, /// Heap of pending timeouts. - timeouts: BinaryHeap<(Instant, IoId)>, + timeouts: BinaryHeap>, } /// Internal structure representing a new outgoing request. @@ -254,7 +255,7 @@ where // If a timeout has been configured, add it to the timeouts map. if let Some(expires) = expires { - self.timeouts.push((expires, io_id)); + self.timeouts.push(Reverse((expires, io_id))); } }, @@ -320,9 +321,11 @@ where /// Returns the duration until the next timeout check needs to take place if timeouts are not /// modified in the interim. fn process_timeouts(&mut self, now: Instant) -> Duration { - let is_expired = |(when, _): &(_, _)| *when <= now; + let is_expired = |t: &Reverse<(Instant, IoId)>| t.0 .0 <= now; + + for item in drain_heap_while(&mut self.timeouts, is_expired) { + let (_, io_id) = item.0; - for (_, io_id) in drain_heap_while(&mut self.timeouts, is_expired) { // If not removed already through other means, set and notify about timeout. if let Some(guard_ref) = self.pending.remove(&io_id) { guard_ref.set_and_notify(Err(RequestError::TimedOut)); @@ -330,7 +333,7 @@ where } // Calculate new delay for timeouts. - if let Some((when, _)) = self.timeouts.peek() { + if let Some(Reverse((when, _))) = self.timeouts.peek() { when.duration_since(now) } else { Duration::from_secs(3600) From 2fc0fe3af367996f146affd0fdc2b57f6c4903d6 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 15:56:43 +0200 Subject: [PATCH 707/735] juliet: Add script for running tests with meaningful output --- juliet/test.sh | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100755 juliet/test.sh diff --git a/juliet/test.sh b/juliet/test.sh new file mode 100755 index 0000000000..066d85562e --- /dev/null +++ b/juliet/test.sh @@ -0,0 +1,9 @@ +#!/bin/sh + +#: Shorthand script to run test with logging setup correctly. + +RUST_LOG=${RUST_LOG:-juliet=trace} +export RUST_LOG + +# Run one thread at a time to not get interleaved output. +exec cargo test --features tracing -- --test-threads=1 --nocapture $@ From 7c543f4f7785f12ddb168464d78dc7099d04e43b Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 17:46:09 +0200 Subject: [PATCH 708/735] juliet: Add tracing logs to RPC layer --- juliet/src/io.rs | 51 +++++++++++++++++++++++++++++++++++++++++ juliet/src/rpc.rs | 58 ++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 103 insertions(+), 6 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 110aca6a3c..fdafaf834d 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -26,6 +26,7 @@ use std::{ collections::{BTreeSet, VecDeque}, + fmt::{self, Display, Formatter}, io, sync::{ atomic::{AtomicU64, Ordering}, @@ -50,6 +51,7 @@ use crate::{ payload_is_multi_frame, CompletedRead, FrameIter, JulietProtocol, LocalProtocolViolation, OutgoingFrame, OutgoingMessage, ProtocolBuilder, }, + util::PayloadFormat, ChannelId, Id, Outcome, }; @@ -161,6 +163,13 @@ pub enum CoreError { #[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)] pub struct IoId(u64); +impl Display for IoId { + #[inline(always)] + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + Display::fmt(&self.0, f) + } +} + /// IO layer for the juliet protocol. /// /// The central structure for the IO layer built on top of the juliet protocol, one instance per @@ -269,6 +278,38 @@ pub enum IoEvent { }, } +impl Display for IoEvent { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + match self { + IoEvent::NewRequest { + channel, + id, + payload, + } => { + write!(f, "NewRequest {{ channel: {}, id: {}", channel, id)?; + if let Some(ref payload) = payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + f.write_str(" }}") + } + + IoEvent::RequestCancelled { channel, id } => { + write!(f, "RequestCancalled {{ channel: {}, id: {} }}", channel, id) + } + IoEvent::ReceivedResponse { io_id, payload } => { + write!(f, "ReceivedResponse {{ io_id: {}", io_id)?; + if let Some(ref payload) = payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + f.write_str(" }}") + } + IoEvent::ReceivedCancellationResponse { io_id } => { + write!(f, "RequestCancalled {{ io_id: {} }}", io_id) + } + } + } +} + /// A builder for the [`IoCore`]. #[derive(Debug)] pub struct IoCoreBuilder { @@ -817,6 +858,16 @@ pub struct RequestTicket { io_id: IoId, } +impl Display for RequestTicket { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + write!( + f, + "RequestTicket {{ channel: {}, io_id: {} }}", + self.channel, self.io_id + ) + } +} + /// A failure to reserve a slot in the queue. pub enum ReservationError { /// No buffer space available. diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index b491d782a9..ef9ff86496 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -46,6 +46,7 @@ use crate::{ RequestTicket, ReservationError, }, protocol::LocalProtocolViolation, + util::PayloadFormat, ChannelId, Id, }; @@ -164,6 +165,19 @@ struct NewOutgoingRequest { expires: Option, } +impl Display for NewOutgoingRequest { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + write!(f, "NewOutgoingRequest {{ ticket: {}", self.ticket,)?; + if let Some(ref expires) = self.expires { + write!(f, ", expires: {:?}", expires)?; + } + if let Some(ref payload) = self.payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + f.write_str(" }}") + } +} + #[derive(Debug)] struct RequestGuardInner { /// The returned response of the request. @@ -244,9 +258,17 @@ where _ = timeout_check => { // Enough time has elapsed that we need to check for timeouts, which we will // do the next time we loop. + #[cfg(feature = "tracing")] + tracing::trace!("timeout check"); } opt_new_request = self.new_requests_receiver.recv() => { + #[cfg(feature = "tracing")] + { + if let Some(ref new_request) = opt_new_request { + tracing::info!(%new_request, "request to send"); + } + } if let Some(NewOutgoingRequest { ticket, guard, payload, expires }) = opt_new_request { match self.handle.enqueue_request(ticket, payload) { Ok(io_id) => { @@ -256,7 +278,6 @@ where // If a timeout has been configured, add it to the timeouts map. if let Some(expires) = expires { self.timeouts.push(Reverse((expires, io_id))); - } }, Err(payload) => { @@ -266,12 +287,29 @@ where } } else { // The client has been dropped, time for us to shut down as well. + #[cfg(feature = "tracing")] + tracing::debug!("last client dropped locally, shutting down"); + return Ok(None); } } - opt_event = self.core.next_event() => { - if let Some(event) = opt_event? { + event_result = self.core.next_event() => { + #[cfg(feature = "tracing")] + { + match event_result { + Err(ref err) => { + tracing::info!(%err, "error"); + } + Ok(None) => { + tracing::info!("received remote close"); + } + Ok(Some(ref event)) => { + tracing::info!(%event, "received"); + } + } + } + if let Some(event) = event_result? { match event { IoEvent::NewRequest { channel, @@ -328,6 +366,8 @@ where // If not removed already through other means, set and notify about timeout. if let Some(guard_ref) = self.pending.remove(&io_id) { + #[cfg(feature = "tracing")] + tracing::info!(%io_id, "timeout due to response not received in time"); guard_ref.set_and_notify(Err(RequestError::TimedOut)); } } @@ -768,6 +808,7 @@ mod tests { use bytes::Bytes; use futures::FutureExt; use tokio::io::{DuplexStream, ReadHalf, WriteHalf}; + use tracing::{span, Instrument, Level}; use crate::{ io::IoCoreBuilder, @@ -825,7 +866,6 @@ mod tests { .await .expect("error receiving request") { - println!("recieved {}", req); let payload = req.payload().clone(); tokio::time::sleep(ECHO_DELAY).await; @@ -850,6 +890,12 @@ mod tests { /// Completely sets up an environment with a running echo server, returning a client. fn create_rpc_echo_server_env() -> JulietRpcClient<2> { + // Setup logging if not already set up. + tracing_subscriber::fmt() + .with_env_filter(tracing_subscriber::EnvFilter::from_default_env()) + .try_init() + .ok(); // If setting up logging fails, another testing thread already initialized it. + let builder = RpcBuilder::new(IoCoreBuilder::new( ProtocolBuilder::<2>::with_default_channel_config( ChannelConfiguration::new() @@ -861,12 +907,12 @@ mod tests { let (client, server) = setup_peers(builder); // Spawn the server. - tokio::spawn(run_echo_server(server)); + tokio::spawn(run_echo_server(server).instrument(span!(Level::ERROR, "server"))); let (rpc_client, rpc_server) = client; // Run the background process for the client. - tokio::spawn(run_echo_client(rpc_server)); + tokio::spawn(run_echo_client(rpc_server).instrument(span!(Level::ERROR, "client"))); rpc_client } From 7c3e88a65e194f1cefe7228c810d883fbc968628 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 14 Sep 2023 17:55:43 +0200 Subject: [PATCH 709/735] juliet: Document intended log levels in `README.md` --- juliet/README.md | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/juliet/README.md b/juliet/README.md index 342b213550..ee2b2551c3 100644 --- a/juliet/README.md +++ b/juliet/README.md @@ -21,3 +21,16 @@ This crate's implementation includes benefits such as ## Examples For a quick usage example, see `examples/fizzbuzz.rs`. + +## `tracing` support + +The crate has an optional dependency on the [`tracing`](https://docs.rs/tracing) crate, which, if enabled, allows detailed insights through logs. If the feature is not enabled, no log statements are compiled in. + +Log levels in general are used as follows: + +* `ERROR` and `WARN`: Actual issues that are not protocol level errors -- peer errors are expected and do not warrant a `WARN` level. +* `INFO`: Insights into received high level events (e.g. connection, disconnection, etc), except information concerning individual requests/messages. +* `DEBUG`: Detailed insights down to the level of individual requests, but not frames. A multi-megabyte single message transmission will NOT clog the logs. +* `TRACE`: Like `DEBUG`, but also including frame and wire-level information, as well as local functions being called. + +At `INFO`, it is thus conceivable for a peer to maliciously spam local logs, although with some effort if connection attempts are rate limited. At `DEBUG` or lower, this becomes trivial. From b6f1d1e38d6673ffa757ae4b5729380001ff71b7 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 11:55:45 +0200 Subject: [PATCH 710/735] juliet: Ensure tracing log message levels are in line with guidelines advertised in `README.md` --- juliet/src/io.rs | 3 +-- juliet/src/protocol.rs | 15 ++++----------- juliet/src/rpc.rs | 14 +++++++++----- 3 files changed, 14 insertions(+), 18 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index fdafaf834d..ff6867bab8 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -456,8 +456,7 @@ where #[cfg(feature = "tracing")] { - use tracing::trace; - trace!(frame=%frame_sent, "sent"); + tracing::trace!(frame=%frame_sent, "sent"); } if frame_sent.header().is_error() { diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index cbf3ade637..a31941e50d 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -447,17 +447,11 @@ pub enum LocalProtocolViolation { macro_rules! log_frame { ($header:expr) => { #[cfg(feature = "tracing")] - { - use tracing::trace; - trace!(header=%$header, "received"); - } + tracing::trace!(header=%$header, "received"); }; ($header:expr, $payload:expr) => { #[cfg(feature = "tracing")] - { - use tracing::trace; - trace!(header=%$header, payload=%crate::util::PayloadFormat(&$payload), "received"); - } + tracing::trace!(header=%$header, payload=%crate::util::PayloadFormat(&$payload), "received"); }; } @@ -705,7 +699,7 @@ impl JulietProtocol { None => { // The header was invalid, return an error. #[cfg(feature = "tracing")] - tracing::trace!(?header_raw, "received invalid header"); + tracing::debug!(?header_raw, "received invalid header"); return Fatal(OutgoingMessage::new( Header::new_error(ErrorKind::InvalidHeader, UNKNOWN_CHANNEL, UNKNOWN_ID), None, @@ -892,8 +886,7 @@ impl JulietProtocol { #[cfg(feature = "tracing")] { - use tracing::trace; - trace!(%header, "received request cancellation"); + tracing::debug!(%header, "received request cancellation"); } // Multi-frame transfers that have not yet been completed are a special case, diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index ef9ff86496..e40a482421 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -266,7 +266,7 @@ where #[cfg(feature = "tracing")] { if let Some(ref new_request) = opt_new_request { - tracing::info!(%new_request, "request to send"); + tracing::debug!(%new_request, "request to send"); } } if let Some(NewOutgoingRequest { ticket, guard, payload, expires }) = opt_new_request { @@ -288,7 +288,7 @@ where } else { // The client has been dropped, time for us to shut down as well. #[cfg(feature = "tracing")] - tracing::debug!("last client dropped locally, shutting down"); + tracing::info!("last client dropped locally, shutting down"); return Ok(None); } @@ -299,13 +299,17 @@ where { match event_result { Err(ref err) => { - tracing::info!(%err, "error"); + if matches!(err, CoreError::LocalProtocolViolation(_)) { + tracing::warn!(%err, "error"); + } else { + tracing::info!(%err, "error"); + } } Ok(None) => { tracing::info!("received remote close"); } Ok(Some(ref event)) => { - tracing::info!(%event, "received"); + tracing::debug!(%event, "received"); } } } @@ -367,7 +371,7 @@ where // If not removed already through other means, set and notify about timeout. if let Some(guard_ref) = self.pending.remove(&io_id) { #[cfg(feature = "tracing")] - tracing::info!(%io_id, "timeout due to response not received in time"); + tracing::debug!(%io_id, "timeout due to response not received in time"); guard_ref.set_and_notify(Err(RequestError::TimedOut)); } } From 393f772591bb00d6b6479b627827ca024c8dff0d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 12:32:37 +0200 Subject: [PATCH 711/735] juliet: Make visible queue processing for messages --- juliet/src/io.rs | 71 ++++++++++++++++++++++++++++++++++++++++++++++- juliet/src/rpc.rs | 2 +- 2 files changed, 71 insertions(+), 2 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index ff6867bab8..87bb3a0d57 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -103,6 +103,59 @@ enum QueuedItem { }, } +impl Display for QueuedItem { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + match self { + QueuedItem::Request { + channel, + io_id, + payload, + permit: _, + } => { + write!(f, "Request {{ channel: {}, io_id: {}", channel, io_id)?; + if let Some(payload) = payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + f.write_str(" }}") + } + QueuedItem::RequestCancellation { io_id } => { + write!(f, "RequestCancellation {{ io_id: {} }}", io_id) + } + QueuedItem::Response { + channel, + id, + payload, + } => { + write!(f, "Response {{ channel: {}, id: {}", channel, id)?; + if let Some(payload) = payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + f.write_str(" }}") + } + QueuedItem::ResponseCancellation { channel, id } => { + write!( + f, + "ResponseCancellation {{ channel: {}, id: {} }}", + channel, id + ) + } + QueuedItem::Error { + channel, + id, + payload, + } => { + write!( + f, + "Error {{ channel: {}, id: {}, payload: {} }}", + channel, + id, + PayloadFormat(payload) + ) + } + } + } +} + impl QueuedItem { /// Retrieves the payload from the queued item. fn into_payload(self) -> Option { @@ -487,6 +540,8 @@ where None => { // If the receiver was closed it means that we locally shut down the // connection. + #[cfg(feature = "tracing")] + tracing::info!("local shutdown"); return Ok(None); } } @@ -498,6 +553,8 @@ where } Err(TryRecvError::Disconnected) => { // While processing incoming items, the last handle was closed. + #[cfg(feature = "tracing")] + tracing::debug!("last local io handle closed, shutting down"); return Ok(None); } Err(TryRecvError::Empty) => { @@ -591,10 +648,14 @@ where fn handle_incoming_item(&mut self, item: QueuedItem) -> Result<(), LocalProtocolViolation> { // Check if the item is sendable immediately. if let Some(channel) = item_should_wait(&item, &self.juliet, &self.active_multi_frame) { + #[cfg(feature = "tracing")] + tracing::debug!(%item, "postponing send"); self.wait_queue[channel.get() as usize].push_back(item); return Ok(()); } + #[cfg(feature = "tracing")] + tracing::debug!(%item, "ready to send"); self.send_to_ready_queue(item, false) } @@ -951,7 +1012,15 @@ impl Handle { payload, permit, }) - .map_err(|send_err| send_err.0.into_payload())?; + .map(|()| { + #[cfg(feature = "tracing")] + tracing::debug!(%io_id, %channel, "successfully enqueued"); + }) + .map_err(|send_err| { + #[cfg(feature = "tracing")] + tracing::debug!("failed to enqueue, remote closed"); + send_err.0.into_payload() + })?; Ok(io_id) } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index e40a482421..69c6f9d417 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -266,7 +266,7 @@ where #[cfg(feature = "tracing")] { if let Some(ref new_request) = opt_new_request { - tracing::debug!(%new_request, "request to send"); + tracing::debug!(%new_request, "trying to enqueue"); } } if let Some(NewOutgoingRequest { ticket, guard, payload, expires }) = opt_new_request { From fddf49e43a187044d37aa6f97a776900b823d5b8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 12:33:06 +0200 Subject: [PATCH 712/735] juliet: Fix issue with two-message timeout test by increasing in-flight limit to 3 --- juliet/src/rpc.rs | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 69c6f9d417..caae2cef70 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -892,8 +892,16 @@ mod tests { } } + /// Creates a channel configuration with test defaults. + fn create_config() -> ChannelConfiguration { + ChannelConfiguration::new() + .with_max_request_payload_size(1024) + .with_max_response_payload_size(1024) + .with_request_limit(1) + } + /// Completely sets up an environment with a running echo server, returning a client. - fn create_rpc_echo_server_env() -> JulietRpcClient<2> { + fn create_rpc_echo_server_env(channel_config: ChannelConfiguration) -> JulietRpcClient<2> { // Setup logging if not already set up. tracing_subscriber::fmt() .with_env_filter(tracing_subscriber::EnvFilter::from_default_env()) @@ -901,11 +909,7 @@ mod tests { .ok(); // If setting up logging fails, another testing thread already initialized it. let builder = RpcBuilder::new(IoCoreBuilder::new( - ProtocolBuilder::<2>::with_default_channel_config( - ChannelConfiguration::new() - .with_max_request_payload_size(1024) - .with_max_response_payload_size(1024), - ), + ProtocolBuilder::<2>::with_default_channel_config(channel_config), )); let (client, server) = setup_peers(builder); @@ -923,7 +927,7 @@ mod tests { #[tokio::test] async fn basic_smoke_test() { - let rpc_client = create_rpc_echo_server_env(); + let rpc_client = create_rpc_echo_server_env(create_config()); let payload = Bytes::from(&b"foobar"[..]); @@ -952,7 +956,9 @@ mod tests { #[tokio::test] async fn timeout_processed_in_correct_order() { - let rpc_client = create_rpc_echo_server_env(); + // It's important to set a request limit higher than 1, so that both requests can be sent at + // the same time. + let rpc_client = create_rpc_echo_server_env(create_config().with_request_limit(3)); let payload_short = Bytes::from(&b"timeout check short"[..]); let payload_long = Bytes::from(&b"timeout check long"[..]); @@ -980,6 +986,8 @@ mod tests { assert_eq!(result_short, Err(RequestError::TimedOut)); assert_eq!(result_long, Ok(Some(payload_long))); + + // TODO: Ensure cancellation was sent. } #[test] From bcc5eae1ca251e2835b2b4eab093092be97a5b28 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 13:35:54 +0200 Subject: [PATCH 713/735] juliet: Improve logging at protocol level --- juliet/src/io.rs | 10 ++++--- juliet/src/protocol.rs | 60 ++++++++++++++++++++++++++++++++++++++++-- juliet/src/rpc.rs | 6 +++++ 3 files changed, 70 insertions(+), 6 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 87bb3a0d57..1503e528c6 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -116,7 +116,7 @@ impl Display for QueuedItem { if let Some(payload) = payload { write!(f, ", payload: {}", PayloadFormat(payload))?; } - f.write_str(" }}") + f.write_str(" }") } QueuedItem::RequestCancellation { io_id } => { write!(f, "RequestCancellation {{ io_id: {} }}", io_id) @@ -130,7 +130,7 @@ impl Display for QueuedItem { if let Some(payload) = payload { write!(f, ", payload: {}", PayloadFormat(payload))?; } - f.write_str(" }}") + f.write_str(" }") } QueuedItem::ResponseCancellation { channel, id } => { write!( @@ -343,7 +343,7 @@ impl Display for IoEvent { if let Some(ref payload) = payload { write!(f, ", payload: {}", PayloadFormat(payload))?; } - f.write_str(" }}") + f.write_str(" }") } IoEvent::RequestCancelled { channel, id } => { @@ -354,7 +354,7 @@ impl Display for IoEvent { if let Some(ref payload) = payload { write!(f, ", payload: {}", PayloadFormat(payload))?; } - f.write_str(" }}") + f.write_str(" }") } IoEvent::ReceivedCancellationResponse { io_id } => { write!(f, "RequestCancalled {{ io_id: {} }}", io_id) @@ -598,6 +598,8 @@ where &mut self, completed_read: CompletedRead, ) -> Result { + #[cfg(feature = "tracing")] + tracing::debug!(%completed_read, "completed read"); match completed_read { CompletedRead::ErrorReceived { header, data } => { // We've received an error from the peer, they will be closing the connection. diff --git a/juliet/src/protocol.rs b/juliet/src/protocol.rs index a31941e50d..e880ddc908 100644 --- a/juliet/src/protocol.rs +++ b/juliet/src/protocol.rs @@ -22,7 +22,7 @@ mod multiframe; mod outgoing_message; -use std::{collections::HashSet, num::NonZeroU32}; +use std::{collections::HashSet, fmt::Display, num::NonZeroU32}; use bytes::{Buf, Bytes, BytesMut}; use thiserror::Error; @@ -32,7 +32,7 @@ pub use self::outgoing_message::{FrameIter, OutgoingFrame, OutgoingMessage}; use crate::{ header::{self, ErrorKind, Header, Kind}, try_outcome, - util::Index, + util::{Index, PayloadFormat}, varint::{decode_varint32, Varint32}, ChannelConfiguration, ChannelId, Id, Outcome::{self, Fatal, Incomplete, Success}, @@ -411,6 +411,62 @@ pub enum CompletedRead { }, } +impl Display for CompletedRead { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + CompletedRead::ErrorReceived { header, data } => { + write!(f, "ErrorReceived {{ header: {}", header)?; + + if let Some(data) = data { + write!(f, ", data: {}", PayloadFormat(data))?; + } + + f.write_str(" }") + } + CompletedRead::NewRequest { + channel, + id, + payload, + } => { + write!(f, "NewRequest {{ channel: {}, id: {}", channel, id)?; + + if let Some(payload) = payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + + f.write_str(" }") + } + CompletedRead::ReceivedResponse { + channel, + id, + payload, + } => { + write!(f, "ReceivedResponse {{ channel: {}, id: {}", channel, id)?; + + if let Some(payload) = payload { + write!(f, ", payload: {}", PayloadFormat(payload))?; + } + + f.write_str(" }") + } + CompletedRead::RequestCancellation { channel, id } => { + write!( + f, + "RequestCancellation {{ channel: {}, id: {} }}", + channel, id + ) + } + CompletedRead::ResponseCancellation { channel, id } => { + write!( + f, + "ResponseCancellation {{ channel: {}, id: {} }}", + channel, id + ) + } + } + } +} + /// The caller of the this crate has violated the protocol. /// /// A correct implementation of a client should never encounter this, thus simply unwrapping every diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index caae2cef70..9275171450 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -373,6 +373,12 @@ where #[cfg(feature = "tracing")] tracing::debug!(%io_id, "timeout due to response not received in time"); guard_ref.set_and_notify(Err(RequestError::TimedOut)); + + // We also need to send a cancellation. + if self.handle.enqueue_request_cancellation(io_id).is_err() { + #[cfg(feature = "tracing")] + tracing::debug!(%io_id, "dropping timeout cancellation, remote already closed"); + } } } From c00102bee164a69ba5d8bed81719c7b7e76ba62d Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 13:36:21 +0200 Subject: [PATCH 714/735] juliet: Do not delete outgoing requests before either response or cancellation has been received --- juliet/src/io.rs | 4 ++-- juliet/src/rpc.rs | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 1503e528c6..51c6db21f6 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -693,8 +693,8 @@ where drop(permit); } QueuedItem::RequestCancellation { io_id } => { - if let Some((_, (channel, id))) = self.request_map.remove_by_left(&io_id) { - if let Some(msg) = self.juliet.cancel_request(channel, id)? { + if let Some((channel, id)) = self.request_map.get_by_left(&io_id) { + if let Some(msg) = self.juliet.cancel_request(*channel, *id)? { self.ready_queue.push_back(msg.frames()); } } else { diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 9275171450..73da54911a 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -993,7 +993,8 @@ mod tests { assert_eq!(result_short, Err(RequestError::TimedOut)); assert_eq!(result_long, Ok(Some(payload_long))); - // TODO: Ensure cancellation was sent. + // TODO: Ensure cancellation was sent. Right now, we can verify this in the logs, but it + // would be nice to have a test tailored to ensure this. } #[test] From 3bf731bf98729934722174a888b4fc886fee34cf Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 13:58:13 +0200 Subject: [PATCH 715/735] juliet: Completely remove `quanta` in favor of tokio built-in time functions --- Cargo.lock | 39 ++------------------------------------- juliet/Cargo.toml | 1 - juliet/src/rpc.rs | 38 +++++++++----------------------------- 3 files changed, 11 insertions(+), 67 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 63a016e97b..dda49a049c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -675,7 +675,7 @@ dependencies = [ "prometheus", "proptest", "proptest-derive", - "quanta 0.7.2", + "quanta", "rand", "rand_chacha", "rand_core", @@ -3256,7 +3256,6 @@ dependencies = [ "proptest", "proptest-attr-macro", "proptest-derive", - "quanta 0.11.1", "rand", "static_assertions", "strum 0.25.0", @@ -3400,15 +3399,6 @@ dependencies = [ "libc", ] -[[package]] -name = "mach2" -version = "0.4.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6d0d1830bcd151a6fc4aea1369af235b36c1528fe976b8ff678683c9995eade8" -dependencies = [ - "libc", -] - [[package]] name = "main-purse" version = "0.1.0" @@ -4330,23 +4320,7 @@ dependencies = [ "libc", "mach", "once_cell", - "raw-cpuid 9.1.1", - "winapi", -] - -[[package]] -name = "quanta" -version = "0.11.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a17e662a7a8291a865152364c20c7abc5e60486ab2001e8ec10b24862de0b9ab" -dependencies = [ - "crossbeam-utils 0.8.15", - "libc", - "mach2", - "once_cell", - "raw-cpuid 10.7.0", - "wasi", - "web-sys", + "raw-cpuid", "winapi", ] @@ -4453,15 +4427,6 @@ dependencies = [ "bitflags 1.3.2", ] -[[package]] -name = "raw-cpuid" -version = "10.7.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6c297679cb867470fa8c9f67dbba74a78d78e3e98d7cf2b08d6d71540f797332" -dependencies = [ - "bitflags 1.3.2", -] - [[package]] name = "rayon" version = "1.7.0" diff --git a/juliet/Cargo.toml b/juliet/Cargo.toml index 121466d800..fcd602adb0 100644 --- a/juliet/Cargo.toml +++ b/juliet/Cargo.toml @@ -13,7 +13,6 @@ bytes = "1.4.0" futures = "0.3.28" hex_fmt = "0.3.0" once_cell = "1.18.0" -quanta = "0.11.1" strum = { version = "0.25.0", features = ["derive"] } thiserror = "1.0.40" tokio = { version = "1.29.1", features = [ "macros", "io-util", "sync", "time" ] } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 73da54911a..70ef767f28 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -30,7 +30,6 @@ use std::{ use bytes::Bytes; use once_cell::sync::OnceCell; -use quanta::{Clock, Instant}; use thiserror::Error; use tokio::{ io::{AsyncRead, AsyncWrite}, @@ -38,6 +37,7 @@ use tokio::{ mpsc::{self, UnboundedReceiver, UnboundedSender}, Notify, }, + time::Instant, }; use crate::{ @@ -54,8 +54,6 @@ use crate::{ pub struct RpcBuilder { /// The IO core builder used. core: IoCoreBuilder, - /// `quanta` clock to use, can be used to instantiate a mock clock. - clock: Clock, } impl RpcBuilder { @@ -63,10 +61,7 @@ impl RpcBuilder { /// /// The builder can be reused to create instances for multiple connections. pub fn new(core: IoCoreBuilder) -> Self { - RpcBuilder { - core, - clock: Default::default(), - } + RpcBuilder { core } } /// Creates new RPC client and server instances. @@ -88,20 +83,11 @@ impl RpcBuilder { handle: core_handle.downgrade(), pending: Default::default(), new_requests_receiver, - clock: self.clock.clone(), timeouts: BinaryHeap::new(), }; (client, server) } - - /// Sets the [`quanta::Clock`] source. - /// - /// Can be used to pass in a mock clock, e.g. from [`quanta::Clock::mock`]. - pub fn with_clock(mut self, clock: Clock) -> Self { - self.clock = clock; - self - } } /// Juliet RPC client. @@ -146,8 +132,6 @@ pub struct JulietRpcServer { pending: HashMap>, /// Receiver for request scheduled by `JulietRpcClient`s. new_requests_receiver: UnboundedReceiver, - /// Clock source for timeouts. - clock: Clock, /// Heap of pending timeouts. timeouts: BinaryHeap>, } @@ -246,11 +230,11 @@ where /// `next_request` as soon as possible. pub async fn next_request(&mut self) -> Result, RpcServerError> { loop { - let now = self.clock.now(); + let now = Instant::now(); // Process all the timeouts. - let until_timeout_check = self.process_timeouts(now); - let timeout_check = tokio::time::sleep(until_timeout_check); + let deadline = self.process_timeouts(now); + let timeout_check = tokio::time::sleep_until(deadline); tokio::select! { biased; @@ -362,7 +346,7 @@ where /// /// Returns the duration until the next timeout check needs to take place if timeouts are not /// modified in the interim. - fn process_timeouts(&mut self, now: Instant) -> Duration { + fn process_timeouts(&mut self, now: Instant) -> Instant { let is_expired = |t: &Reverse<(Instant, IoId)>| t.0 .0 <= now; for item in drain_heap_while(&mut self.timeouts, is_expired) { @@ -384,11 +368,10 @@ where // Calculate new delay for timeouts. if let Some(Reverse((when, _))) = self.timeouts.peek() { - when.duration_since(now) + *when } else { - Duration::from_secs(3600) - // 1 hour dummy sleep, since we cannot have a conditional future. + now + Duration::from_secs(3600) } } } @@ -480,12 +463,9 @@ impl<'a, const N: usize> JulietRpcRequestBuilder<'a, N> { fn do_enqueue_request(self, ticket: RequestTicket) -> RequestGuard { let inner = Arc::new(RequestGuardInner::new()); - // TODO: Thread timing through interface. Maybe attach to client? Clock is 40 bytes. - let clock = quanta::Clock::default(); - // If a timeout is set, calculate expiration time. let expires = if let Some(timeout) = self.timeout { - match clock.now().checked_add(timeout) { + match Instant::now().checked_add(timeout) { Some(expires) => Some(expires), None => { // The timeout is so high that the resulting `Instant` would overflow. From a18b423070c722e4c98cc49b1261f36e670899f3 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 14:29:05 +0200 Subject: [PATCH 716/735] Reduce number of tasks spawned by networking when sending by attempting to instantly send every outgoing message at least once first --- node/src/components/network.rs | 71 ++++++++++++++++++++-------------- 1 file changed, 43 insertions(+), 28 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 4a9f3d9a81..df89010999 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -490,37 +490,52 @@ where }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - if let Some(responder) = message_queued_responder { - let client = connection.rpc_client.clone(); - - // Technically, the queueing future should be spawned by the reactor, but we can - // make a case here since the networking component usually controls its own - // futures, we are allowed to spawn these as well. - tokio::spawn(async move { - let guard = client - .create_request(channel.into_channel_id()) - .with_payload(payload) - .queue_for_sending() - .await; - responder.respond(()).await; - - // We need to properly process the guard, so it does not cause a cancellation. - process_request_guard(channel, guard) - }); - } else { - let request = connection - .rpc_client - .create_request(channel.into_channel_id()) - .with_payload(payload); - - // No responder given, so we do a best effort of sending the message. - match request.try_queue_for_sending() { - Ok(guard) => process_request_guard(channel, guard), - Err(builder) => { + // Build the request. + let request = connection + .rpc_client + .create_request(channel.into_channel_id()) + .with_payload(payload); + + // Attempt to enqueue it directly, regardless of what `message_queued_responder` is. + match request.try_queue_for_sending() { + Ok(guard) => process_request_guard(channel, guard), + Err(builder) => { + // Failed to queue immediately, our next step depends on whether we were asked + // to keep trying or to discard. + + // Reconstruct the payload. + let payload = match builder.into_payload() { + None => { + // This should never happen. + error!("payload unexpectedly disappeard"); + return; + } + Some(payload) => payload, + }; + + if let Some(responder) = message_queued_responder { + // Reconstruct client the client. + let client = connection.rpc_client.clone(); + + // Technically, the queueing future should be spawned by the reactor, but + // since the networking component usually controls its own futures, we are + // allowed to spawn these as well. + tokio::spawn(async move { + let guard = client + .create_request(channel.into_channel_id()) + .with_payload(payload) + .queue_for_sending() + .await; + responder.respond(()).await; + + // We need to properly process the guard, so it does not cause a + // cancellation from being dropped. + process_request_guard(channel, guard) + }); + } else { // We had to drop the message, since we hit the buffer limit. debug!(%channel, "node is sending at too high a rate, message dropped"); - let payload = builder.into_payload().unwrap_or_default(); match deserialize_network_message::

(&payload) { Ok(reconstructed_message) => { debug!(our_id=%self.context.our_id(), %dest, msg=%reconstructed_message, "dropped outgoing message, buffer exhausted"); From fcfce38fe63c74f4c6bd02f975f225741f5d8159 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 14:38:52 +0200 Subject: [PATCH 717/735] juliet: Fix type inference issues on older rust versions --- juliet/src/protocol/outgoing_message.rs | 10 +++++----- juliet/src/rpc.rs | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/juliet/src/protocol/outgoing_message.rs b/juliet/src/protocol/outgoing_message.rs index a1b1e39f5b..2804da8795 100644 --- a/juliet/src/protocol/outgoing_message.rs +++ b/juliet/src/protocol/outgoing_message.rs @@ -672,11 +672,11 @@ mod tests { assert_eq!(byte_iter.chunk(), &[11]); byte_iter.advance(1); assert_eq!(byte_iter.remaining(), 0); - assert_eq!(byte_iter.chunk(), &[]); - assert_eq!(byte_iter.chunk(), &[]); - assert_eq!(byte_iter.chunk(), &[]); - assert_eq!(byte_iter.chunk(), &[]); - assert_eq!(byte_iter.chunk(), &[]); + assert_eq!(byte_iter.chunk(), &[0u8; 0]); + assert_eq!(byte_iter.chunk(), &[0u8; 0]); + assert_eq!(byte_iter.chunk(), &[0u8; 0]); + assert_eq!(byte_iter.chunk(), &[0u8; 0]); + assert_eq!(byte_iter.chunk(), &[0u8; 0]); assert_eq!(byte_iter.remaining(), 0); assert_eq!(byte_iter.remaining(), 0); assert_eq!(byte_iter.remaining(), 0); diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 70ef767f28..4b679a0f38 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -1092,7 +1092,7 @@ mod tests { assert_eq!( drain_heap_while(&mut heap, |&v| v > 10).collect::>(), - vec![] + Vec::::new() ); assert_eq!( From 493e454b39610819b7ced818fead1dbacf49c0f8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 14:59:35 +0200 Subject: [PATCH 718/735] juliet: Fix typo in documentation --- juliet/src/rpc.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 4b679a0f38..5cbc34d0f1 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -538,7 +538,7 @@ pub enum RequestError { /// The existence of a [`RequestGuard`] indicates that a request has been made or is ongoing. It /// can also be used to attempt to [`cancel`](RequestGuard::cancel) the request, or retrieve its /// values using [`wait_for_response`](RequestGuard::wait_for_response) or -/// [`try_wait_for_response`](RequestGuard::try_wait_for_response). +/// [`try_get_response`](RequestGuard::try_get_response). #[derive(Debug)] #[must_use = "dropping the request guard will immediately cancel the request"] pub struct RequestGuard { From dcedd061245611c87a60c3cc721f8701dd67999f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Fri, 15 Sep 2023 15:39:08 +0200 Subject: [PATCH 719/735] Fix typo in documentation of node/src/components/network.rs Co-authored-by: Fraser Hutchison <190532+Fraser999@users.noreply.github.com> --- node/src/components/network.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index df89010999..815614ac67 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -514,7 +514,7 @@ where }; if let Some(responder) = message_queued_responder { - // Reconstruct client the client. + // Reconstruct the client. let client = connection.rpc_client.clone(); // Technically, the queueing future should be spawned by the reactor, but From 4b08b7a9a969af633b606942f609a9ccc815a464 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Fri, 15 Sep 2023 15:40:22 +0200 Subject: [PATCH 720/735] juliet: Fix typos in documentation and code Co-authored-by: Fraser Hutchison <190532+Fraser999@users.noreply.github.com> --- juliet/src/io.rs | 2 +- juliet/src/rpc.rs | 4 +--- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/juliet/src/io.rs b/juliet/src/io.rs index 51c6db21f6..7dbdda3bdb 100644 --- a/juliet/src/io.rs +++ b/juliet/src/io.rs @@ -357,7 +357,7 @@ impl Display for IoEvent { f.write_str(" }") } IoEvent::ReceivedCancellationResponse { io_id } => { - write!(f, "RequestCancalled {{ io_id: {} }}", io_id) + write!(f, "ReceivedCancellationResponse {{ io_id: {} }}", io_id) } } } diff --git a/juliet/src/rpc.rs b/juliet/src/rpc.rs index 5cbc34d0f1..4c77dc2348 100644 --- a/juliet/src/rpc.rs +++ b/juliet/src/rpc.rs @@ -759,9 +759,7 @@ struct DrainConditional<'a, T, F> { predicate: F, } -/// Removes ites from the top of a heap while a given predicate is true. -/// -/// Will take items from `heap` as long as `predicate` evaluates to `true`. +/// Removes items from the top of a heap while a given predicate is true. fn drain_heap_while bool>( heap: &mut BinaryHeap, predicate: F, From 7d22ce02e99962978e5e6c26e0f7e00b9e014f3f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 15:53:35 +0200 Subject: [PATCH 721/735] Fix location of `Added` section in `CHANGELOG.md`, and undo accidental reformatting --- node/CHANGELOG.md | 79 ++++++++++++++++++++++++----------------------- 1 file changed, 40 insertions(+), 39 deletions(-) diff --git a/node/CHANGELOG.md b/node/CHANGELOG.md index 69138ac2d8..1d6746ba31 100644 --- a/node/CHANGELOG.md +++ b/node/CHANGELOG.md @@ -13,6 +13,13 @@ All notable changes to this project will be documented in this file. The format ## Unreleased +### Added +* The network handshake now contains the hash of the chainspec used and will be successful only if they match. +* Add an `identity` option to load existing network identity certificates signed by a CA. +* TLS connection keys can now be logged using the `network.keylog_location` setting (similar to `SSLKEYLOGFILE` envvar found in other applications). +* Add a `lock_status` field to the JSON representation of the `ContractPackage` values. +* Unit tests can be run with JSON log output by setting a `NODE_TEST_LOG=json` environment variable. + ### Fixed * Now possible to build outside a git repository context (e.g. from a source tarball). In such cases, the node's build version (as reported vie status endpoints) will not contain a trailing git short hash. @@ -44,7 +51,6 @@ All notable changes to this project will be documented in this file. The format ## 1.5.0-rc.1 ### Added - * Introduce fast-syncing to join the network, avoiding the need to execute every block to catch up. * Add config sections for new components to support fast-sync: `[block_accumulator]`, `[block_synchronizer]`, `[deploy_buffer]` and `[upgrade_watcher]`. * Add new Zug consensus protocol, disabled by default, along with a new `[consensus.zug]` config section. @@ -93,15 +99,9 @@ All notable changes to this project will be documented in this file. The format * `execution_queue_size` to report the number of blocks enqueued pending execution * `accumulated_(outgoing|incoming)_limiter_delay` to report how much time was spent throttling other peers. * Add `testing` feature to casper-node crate to support test-only functionality (random constructors) on blocks and deploys. -* The network handshake now contains the hash of the chainspec used and will be successful only if they match. -* Add an `identity` option to load existing network identity certificates signed by a CA. -* TLS connection keys can now be logged using the `network.keylog_location` setting (similar to `SSLKEYLOGFILE` envvar found in other applications). -* Add a `lock_status` field to the JSON representation of the `ContractPackage` values. -* Unit tests can be run with JSON log output by setting a `NODE_TEST_LOG=json` environment variable. * Connections to unresponsive nodes will be terminated, based on a watchdog feature. ### Changed - * The `starting_state_root_hash` field from the REST and JSON-RPC status endpoints now represents the state root hash of the lowest block in the available block range. * Detection of a crash no longer triggers DB integrity checks to run on node start; the checks can be triggered manually instead. * Nodes no longer connect to nodes that do not speak the same protocol version by default. @@ -124,12 +124,10 @@ All notable changes to this project will be documented in this file. The format * Rename `current_era` metric to `consensus_current_era`. ### Deprecated - * `null` should no longer be used as a value for `params` in JSON-RPC requests. Prefer an empty Array or Object. * Deprecate the `chain_height` metric in favor of `highest_available_block_height`. ### Removed - * Remove legacy synchronization from genesis in favor of fast-sync. * Remove config options no longer required due to fast-sync: `[linear_chain_sync]`, `[block_proposer]` and `[consensus.highway.standstill_timeout]`. * Remove chainspec setting `[protocol.last_emergency_restart]` as fast sync will use the global state directly for recognizing such restarts instead. @@ -140,7 +138,6 @@ All notable changes to this project will be documented in this file. The format * Remove `casper-mainnet` feature flag. ### Fixed - * Limiters for incoming requests and outgoing bandwidth will no longer inadvertently delay some validator traffic when maxed out due to joining nodes. * Dropped connections no longer cause the outstanding messages metric to become incorrect. * JSON-RPC server is now mostly compliant with the standard. Specifically, correct error values are now returned in responses in many failure cases. @@ -189,82 +186,86 @@ All notable changes to this project will be documented in this file. The format ### Changed * Update `casper-execution-engine`. + + ## 1.4.8 ### Added * Add an `identity` option to load existing network identity certificates signed by a CA. -### Changed +### Changed * Update `casper-execution-engine`. + + ## 1.4.7 ### Changed * Update `casper-execution-engine` and three `openssl` crates to latest versions. + ## 1.4.6 ### Changed * Update dependencies to make use of scratch global state in the contract runtime. + ## 1.4.5 ### Added - * Add a temporary chainspec setting `max_stored_value_size` to limit the size of individual values stored in global state. * Add a chainspec setting `minimum_delegation_amount` to limit the minimal amount of motes that can be delegated by a first time delegator. * Add a chainspec setting `block_max_approval_count` to limit the maximum number of approvals across all deploys in a single block. * Add a `finalized_approvals` field to the GetDeploy RPC, which if `true` causes the response to include finalized approvals substituted for the originally-received ones. ### Fixed - * Include deploy approvals in block payloads upon which consensus operates. * Fixes a bug where historical auction data was unavailable via `get-auction-info` RPC. + + ## 1.4.4 - 2021-12-29 ### Added - * Add `contract_runtime_latest_commit_step` gauge metric indicating the execution duration of the latest `commit_step` call. ### Changed - * No longer checksum-hex encode various types. + + ## 1.4.3 - 2021-12-06 ### Added - * Add new event to the main SSE server stream accessed via `/events/main` which emits hashes of expired deploys. ### Changed - * `enable_manual_sync` configuration parameter defaults to `true`. * Default behavior of LMDB changed to use [`NO_READAHEAD`](https://docs.rs/lmdb/0.8.0/lmdb/struct.EnvironmentFlags.html#associatedconstant.NO_READAHEAD). + + ## [1.4.2] - 2021-11-11 ### Changed - * There are now less false warnings/errors regarding dropped responders or closed channels during a shutdown, where they are expected and harmless. * Execution transforms are ordered by insertion order. ### Removed - * The config option `consensus.highway.unit_hashes_folder` has been removed. ### Fixed - * The block proposer component now retains pending deploys and transfers across a restart. + + ## [1.4.0] - 2021-10-04 ### Added - * Add `enable_manual_sync` boolean option to `[contract_runtime]` in the config.toml which enables manual LMDB sync. * Add `contract_runtime_execute_block` histogram tracking execution time of a whole block. * Long-running events now log their event type. @@ -276,7 +277,6 @@ All notable changes to this project will be documented in this file. The format * Add `info_get_validator_changes` JSON-RPC endpoint and REST endpoint `validator-changes` that return the status changes of active validators. ### Changed - * The following Highway timers are now separate, configurable, and optional (if the entry is not in the config, the timer is never called): * `standstill_timeout` causes the node to restart if no progress is made. * `request_state_interval` makes the node periodically request the latest state from a peer. @@ -296,7 +296,6 @@ All notable changes to this project will be documented in this file. The format * `[fetcher][get_from_peer_timeout]` ### Removed - * The unofficial support for nix-related derivations and support tooling has been removed. * Experimental, nix-based kubernetes testing support has been removed. * Experimental support for libp2p has been removed. @@ -304,27 +303,29 @@ All notable changes to this project will be documented in this file. The format * The libp2p-exclusive metrics of `read_futures_in_flight`, `read_futures_total`, `write_futures_in_flight`, `write_futures_total` have been removed. ### Fixed - * Resolve an issue where `Deploys` with payment amounts exceeding the block gas limit would not be rejected. * Resolve issue of duplicated config option `max_associated_keys`. + + ## [1.3.2] - 2021-08-02 ### Fixed - * Resolve an issue in the `state_get_dictionary_item` JSON-RPC when a `ContractHash` is used. * Corrected network state engine to hold in blocked state for full 10 minutes when encountering out of order race condition. + + ## [1.3.1] - 2021-07-26 ### Fixed - * Parametrized sync_timeout and increased value to stop possible post upgrade restart loop. + + ## [1.3.0] - 2021-07-19 ### Added - * Add support for providing historical auction information via the addition of an optional block ID in the `state_get_auction_info` JSON-RPC. * Exclude inactive validators from proposing blocks. * Add validation of the `[protocol]` configuration on startup, to ensure the contained values make sense. @@ -335,7 +336,6 @@ All notable changes to this project will be documented in this file. The format * Events now log their ancestors, so detailed tracing of events is possible. ### Changed - * Major rewrite of the network component, covering connection negotiation and management, periodic housekeeping and logging. * Exchange and authenticate Validator public keys in network handshake between peers. * Remove needless copying of outgoing network messages. @@ -356,13 +356,11 @@ All notable changes to this project will be documented in this file. The format * More node modules are now `pub(crate)`. ### Removed - * Remove systemd notify support, including removal of `[network][systemd_support]` config option. * Removed dead code revealed by making modules `pub(crate)`. * The networking layer no longer gives preferences to validators from the previous era. ### Fixed - * Avoid redundant requests caused by the Highway synchronizer. * Update "current era" metric also for initial era. * Keep syncing until the node is in the current era, rather than allowing an acceptable drift. @@ -374,10 +372,11 @@ All notable changes to this project will be documented in this file. The format * Change `BlockIdentifier` params in the Open-RPC schema to be optional. * Asymmetric connections are now swept regularly again. + + ## [1.2.0] - 2021-05-27 ### Added - * Add configuration options for `[consensus][highway][round_success_meter]`. * Add `[protocol][last_emergency_restart]` field to the chainspec for use by fast sync. * Add an endpoint at `/rpc-schema` to the REST server which returns the OpenRPC-compatible schema of the JSON-RPC API. @@ -389,7 +388,6 @@ All notable changes to this project will be documented in this file. The format * Add joiner test. ### Changed - * Change to Apache 2.0 license. * Provide an efficient way of finding the block to which a given deploy belongs. * On hard-reset upgrades, only remove stored blocks with old protocol versions, and remove all data associated with a removed block. @@ -413,13 +411,11 @@ All notable changes to this project will be documented in this file. The format * Use `minimum_block_time` and `maximum_round_length` in Highway, instead of `minimum_round_exponent` and `maximum_round_exponent`. The minimum round length doesn't have to be a power of two in milliseconds anymore. ### Removed - * Remove `impl Sub for Timestamp` to help avoid panicking in non-obvious edge cases. * Remove `impl Sub for Timestamp` from production code to help avoid panicking in non-obvious edge cases. * Remove `[event_stream_server][broadcast_channel_size]` from config.toml, and make it a factor of the event stream buffer size. ### Fixed - * Have casper-node process exit with the exit code returned by the validator reactor. * Restore cached block proposer state correctly. * Runtime memory estimator now registered in the joiner reactor. @@ -438,37 +434,42 @@ All notable changes to this project will be documented in this file. The format * Reduce duplication in block validation requests made by the Highway synchronizer. * Request latest consensus state only if consensus has stalled locally. + + ## [1.1.1] - 2021-04-19 ### Changed - * Ensure consistent validation when adding deploys and transfers while proposing and validating blocks. + + ## [1.1.0] - 2021-04-13 [YANKED] ### Changed - * Ensure that global state queries will only be permitted to recurse to a fixed maximum depth. + + ## [1.0.1] - 2021-04-08 ### Added - * Add `[deploys][max_deploy_size]` to chainspec to limit the size of valid deploys. * Add `[network][maximum_net_message_size]` to chainspec to limit the size of peer-to-peer messages. ### Changed - * Check deploy size does not exceed maximum permitted as part of deploy validation. * Include protocol version and maximum message size in network handshake of nodes. * Change accounts.toml to only be included in v1.0.0 configurations. + + ## [1.0.0] - 2021-03-30 ### Added - * Initial release of node for Casper mainnet. + + [Keep a Changelog]: https://keepachangelog.com/en/1.0.0 [unreleased]: https://github.com/casper-network/casper-node/compare/37d561634adf73dab40fffa7f1f1ee47e80bf8a1...dev [1.4.2]: https://github.com/casper-network/casper-node/compare/v1.4.0...37d561634adf73dab40fffa7f1f1ee47e80bf8a1 From ec49ac852135f7dd2887459351b2903312a0e1c4 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Fri, 15 Sep 2023 16:02:09 +0200 Subject: [PATCH 722/735] Restore `Cargo.toml` formatting --- node/Cargo.toml | 122 +++++++++++++----------------------------------- 1 file changed, 32 insertions(+), 90 deletions(-) diff --git a/node/Cargo.toml b/node/Cargo.toml index 730ba743a9..cb3129942a 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -15,8 +15,8 @@ exclude = ["proptest-regressions"] [dependencies] ansi_term = "0.12.1" anyhow = "1" -array-init = "2.0.1" aquamarine = "0.1.12" +array-init = "2.0.1" async-trait = "0.1.50" backtrace = "0.3.50" base16 = "0.2.1" @@ -33,7 +33,7 @@ either = { version = "1", features = ["serde"] } enum-iterator = "0.6.0" erased-serde = "0.3.18" fs2 = "0.4.3" -futures = { version = "0.3.21" } +futures = "0.3.21" hex-buffer-serde = "0.3.0" hex_fmt = "0.3.0" hostname = "0.3.0" @@ -45,10 +45,10 @@ juliet = { path = "../juliet" } libc = "0.2.66" linked-hash-map = "0.5.3" lmdb-rkv = "0.14" -log = { version = "0.4.8", features = [ "std", "serde", "kv_unstable" ] } +log = { version = "0.4.8", features = ["std", "serde", "kv_unstable"] } num = { version = "0.4.0", default-features = false } num-derive = "0.3.0" -num-rational = { version = "0.4.0", features = [ "serde" ] } +num-rational = { version = "0.4.0", features = ["serde"] } num-traits = "0.2.10" num_cpus = "1" once_cell = "1" @@ -60,48 +60,35 @@ rand = "0.8.3" rand_chacha = "0.3.0" regex = "1" rmp-serde = "0.14.4" -schemars = { version = "=0.8.5", features = [ - "preserve_order", - "impl_json_schema", -] } -serde = { version = "1", features = [ "derive", "rc" ] } +schemars = { version = "=0.8.5", features = ["preserve_order", "impl_json_schema"] } +serde = { version = "1", features = ["derive", "rc"] } serde-big-array = "0.3.0" serde_bytes = "0.11.5" -serde_json = { version = "1", features = [ "preserve_order" ] } +serde_json = { version = "1", features = ["preserve_order"] } serde_repr = "0.1.6" shlex = "1.0.0" signal-hook = "0.3.4" signature = "1" -smallvec = { version = "1", features = [ "serde" ] } +smallvec = { version = "1", features = ["serde"] } static_assertions = "1" stats_alloc = "0.1.8" structopt = "0.3.14" -strum = { version = "0.24.1", features = [ "strum_macros", "derive" ] } +strum = { version = "0.24.1", features = ["strum_macros", "derive"] } sys-info = "0.8.0" tempfile = "3.4.0" thiserror = "1" -tokio = { version = "1", features = [ - "macros", - "net", - "rt-multi-thread", - "sync", - "time", -] } +tokio = { version = "1", features = ["macros", "net", "rt-multi-thread", "sync", "time"] } tokio-openssl = "0.6.1" -tokio-stream = { version = "0.1.4", features = [ "sync" ] } -tokio-util = { version = "0.6.4", features = [ "codec", "compat" ] } +tokio-stream = { version = "0.1.4", features = ["sync"] } +tokio-util = { version = "0.6.4", features = ["codec", "compat"] } toml = "0.5.6" -tower = { version = "0.4.6", features = [ "limit" ] } +tower = { version = "0.4.6", features = ["limit"] } tracing = "0.1.18" tracing-futures = "0.2.5" -tracing-subscriber = { version = "0.3.15", features = [ - "env-filter", - "fmt", - "json", -] } +tracing-subscriber = { version = "0.3.15", features = ["env-filter", "fmt", "json"] } uint = "0.9.0" -uuid = { version = "0.8.1", features = [ "serde", "v4" ] } -warp = { version = "0.3.0", features = [ "compression" ] } +uuid = { version = "0.8.1", features = ["serde", "v4"] } +warp = { version = "0.3.0", features = ["compression"] } wheelbuf = "0.2.0" [build-dependencies] @@ -110,24 +97,19 @@ vergen = { version = "8.2.1", default-features = false, features = ["git", "gito [dev-dependencies] assert-json-diff = "2.0.1" assert_matches = "1.5.0" -casper-types = { path = "../types", features = [ - "datasize", - "json-schema", - "std", - "testing", -] } +casper-types = { path = "../types", features = ["datasize", "json-schema", "std", "testing"] } fake_instant = "0.4.0" pnet = "0.28.0" pretty_assertions = "0.7.2" proptest = "1.0.0" proptest-derive = "0.3.0" rand_core = "0.6.2" -reqwest = { version = "0.11.3", features = [ "stream" ] } -tokio = { version = "1", features = [ "test-util" ] } +reqwest = { version = "0.11.3", features = ["stream"] } +tokio = { version = "1", features = ["test-util"] } [features] -testing = [ "casper-types/testing" ] -vendored-openssl = [ "openssl/vendored" ] +testing = ["casper-types/testing"] +vendored-openssl = ["openssl/vendored"] [[bin]] name = "casper-node" @@ -137,60 +119,20 @@ doctest = false test = false [package.metadata.deb] -features = [ "vendored-openssl" ] +features = ["vendored-openssl"] revision = "0" depends = "curl" assets = [ - [ - "../target/release/casper-node", - "/usr/bin/casper-node", - "755", - ], - [ - "../resources/maintainer_scripts/logrotate.d/casper-node", - "/etc/logrotate.d/casper-node", - "644", - ], - [ - "../resources/maintainer_scripts/pull_genesis.sh", - "/etc/casper/pull_genesis.sh", - "755", - ], - [ - "../resources/maintainer_scripts/delete_local_db.sh", - "/etc/casper/delete_local_db.sh", - "755", - ], - [ - "../resources/maintainer_scripts/config_from_example.sh", - "/etc/casper/config_from_example.sh", - "755", - ], - [ - "../resources/maintainer_scripts/systemd_pre_start.sh", - "/etc/casper/systemd_pre_start.sh", - "755", - ], - [ - "../resources/production/README.md", - "/etc/casper/README.md", - "644", - ], - [ - "../resources/production/CHANGE_LOG.md", - "/etc/casper/CHANGE_LOG.md", - "644", - ], - [ - "../resources/production/config-example.toml", - "/etc/casper/config-example.toml", - "644", - ], - [ - "../resources/production/validator_keys/README.md", - "/etc/casper/validator_keys/README.md", - "644", - ], + ["../target/release/casper-node", "/usr/bin/casper-node", "755"], + ["../resources/maintainer_scripts/logrotate.d/casper-node", "/etc/logrotate.d/casper-node", "644"], + ["../resources/maintainer_scripts/pull_genesis.sh", "/etc/casper/pull_genesis.sh", "755"], + ["../resources/maintainer_scripts/delete_local_db.sh", "/etc/casper/delete_local_db.sh", "755"], + ["../resources/maintainer_scripts/config_from_example.sh", "/etc/casper/config_from_example.sh", "755"], + ["../resources/maintainer_scripts/systemd_pre_start.sh", "/etc/casper/systemd_pre_start.sh", "755"], + ["../resources/production/README.md", "/etc/casper/README.md", "644"], + ["../resources/production/CHANGE_LOG.md", "/etc/casper/CHANGE_LOG.md", "644"], + ["../resources/production/config-example.toml", "/etc/casper/config-example.toml", "644"], + ["../resources/production/validator_keys/README.md", "/etc/casper/validator_keys/README.md", "644"] ] maintainer-scripts = "../resources/maintainer_scripts/debian" extended-description = """ From 4f72a9c901236a78bdf4846b58accd248d0ff45f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Papierski?= Date: Fri, 22 Sep 2023 18:14:05 +0200 Subject: [PATCH 723/735] Better error message for multi_value extension. This makes the error more user friendly and allows us to hide the detail of a wasm parser. --- execution_engine/src/shared/wasm_prep.rs | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/execution_engine/src/shared/wasm_prep.rs b/execution_engine/src/shared/wasm_prep.rs index a0951becbf..b64a90da49 100644 --- a/execution_engine/src/shared/wasm_prep.rs +++ b/execution_engine/src/shared/wasm_prep.rs @@ -429,7 +429,17 @@ pub fn deserialize(module_bytes: &[u8]) -> Result { ) => PreprocessingError::Deserialize( "Sign extension operations are not supported".to_string(), ), + parity_wasm::SerializationError::Other(msg) if msg == "Enable the multi_value feature to deserialize more than one function result" => { + // Due to the way parity-wasm crate works, it's always deserializes opcodes + // from multi_value proposal but if the feature is not enabled, then it will + // error with very specific message (as compared to other extensions). + // + // That's OK since we'd prefer to not inspect deserialized bytecode. We + // can simply replace the error message with a more user friendly one. + PreprocessingError::Deserialize("Multi value extension is not supported".to_string()) + } _ => deserialize_error.into(), + } }) } @@ -674,7 +684,7 @@ mod tests { .expect_err("should fail with an error"); assert!( matches!(&error, PreprocessingError::Deserialize(msg) - if msg == "Enable the multi_value feature to deserialize more than one function result"), + if msg == "Multi value extension is not supported"), "{:?}", error, ); From 4a26388ab794ac821eea41c72868402fa0814c17 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann <63730123+marc-casperlabs@users.noreply.github.com> Date: Thu, 5 Oct 2023 13:33:48 +0200 Subject: [PATCH 724/735] Apply suggestions by @mpapierski from code review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-authored-by: Michał Papierski --- juliet/src/header.rs | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/juliet/src/header.rs b/juliet/src/header.rs index 0de2efa0f4..9d65feb6ca 100644 --- a/juliet/src/header.rs +++ b/juliet/src/header.rs @@ -102,7 +102,6 @@ pub enum ErrorKind { #[derive(Copy, Clone, Debug, EnumCount, EnumIter, Eq, FromRepr, PartialEq)] #[cfg_attr(test, derive(proptest_derive::Arbitrary))] #[repr(u8)] - pub enum Kind { /// A request with no payload. Request = 0, @@ -168,7 +167,7 @@ impl Header { } // Ensure the 4th bit is not set, since the error kind bits are superset of kind bits. - if header.0[0] & Self::KIND_MASK != header.0[0] { + if header.kind_byte() & Self::KIND_MASK != header.kind_byte() { return None; } } From 9cee0fef2f60abe1f05942b90e7061e531bdad1f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 5 Oct 2023 14:08:47 +0200 Subject: [PATCH 725/735] juliet: Write out constant differently in `length_of` function --- juliet/src/varint.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index 0c6dd55df6..e1c418d2d9 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -143,19 +143,19 @@ impl Varint32 { /// Returns the length of the given value encoded as a `Varint32`. #[inline] pub const fn length_of(value: u32) -> usize { - if value < 128 { + if value < (1 << 7) { return 1; } - if value < 16384 { + if value < 1 << 14 { return 2; } - if value < 2097152 { + if value < 1 << 21 { return 3; } - if value < 268435456 { + if value < 1 << 28 { return 4; } From 8d3536a53f9aad45f1abc5e3acce168be531d7f5 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Thu, 5 Oct 2023 14:20:23 +0200 Subject: [PATCH 726/735] juliet: Apply `VARINT_MASK` where applicable --- juliet/src/varint.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/juliet/src/varint.rs b/juliet/src/varint.rs index e1c418d2d9..8832d70f14 100644 --- a/juliet/src/varint.rs +++ b/juliet/src/varint.rs @@ -42,9 +42,9 @@ pub const fn decode_varint32(input: &[u8]) -> Outcome { return Fatal(Overflow); } - value |= ((c & 0b0111_1111) as u32) << (idx * 7); + value |= ((c & VARINT_MASK) as u32) << (idx * 7); - if c & 0b1000_0000 == 0 { + if c & !VARINT_MASK == 0 { return Success(ParsedU32 { value, offset: unsafe { NonZeroU8::new_unchecked((idx + 1) as u8) }, From 7965a1b1291fac83cbaa9ea7bafa217e743669f8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 Oct 2023 06:40:05 +0200 Subject: [PATCH 727/735] Factor out request building in networking component --- Cargo.lock | 270 +++++++++++++++++++-------------- node/src/components/network.rs | 26 +++- 2 files changed, 170 insertions(+), 126 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index dda49a049c..a6dfc32021 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -71,9 +71,9 @@ dependencies = [ [[package]] name = "aho-corasick" -version = "1.0.2" +version = "1.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41" +checksum = "67fc08ce920c31afb70f013dcce1bfc3a3195de6a228474e45e1f145b36f8d04" dependencies = [ "memchr", ] @@ -153,9 +153,9 @@ dependencies = [ [[package]] name = "anyhow" -version = "1.0.70" +version = "1.0.71" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7de8ce5e0f9f8d88245311066a578d72b7af3e7088f32783804676302df237e4" +checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8" [[package]] name = "aquamarine" @@ -165,7 +165,7 @@ checksum = "a941c39708478e8eea39243b5983f1c42d2717b3620ee91f4a52115fd02ac43f" dependencies = [ "itertools 0.9.0", "proc-macro-error", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -218,7 +218,7 @@ version = "0.1.68" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "b9ccdd8f2a161be9bd5c023df56f1b2a0bd1d83872ae53b71a84a12c9bf6e842" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -275,7 +275,7 @@ dependencies = [ "cc", "cfg-if 1.0.0", "libc", - "miniz_oxide", + "miniz_oxide 0.6.2", "object", "rustc-demangle", ] @@ -424,26 +424,26 @@ dependencies = [ [[package]] name = "bumpalo" -version = "3.12.0" +version = "3.12.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535" +checksum = "9b1ce199063694f33ffb7dd4e0ee620741495c32833cde5aa08f02a0bf96f0c8" [[package]] name = "bytemuck" -version = "1.13.1" +version = "1.14.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea" +checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6" dependencies = [ "bytemuck_derive", ] [[package]] name = "bytemuck_derive" -version = "1.4.1" +version = "1.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "fdde5c9cd29ebd706ce1b35600920a33550e402fc998a2e53ad3b42c3c47a192" +checksum = "965ab7eb5f8f97d2a083c799f3a1b994fc397b2fe2da5d1da1626ce15a39f2b1" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -776,7 +776,7 @@ dependencies = [ "anyhow", "base16", "casper-types", - "clap 3.2.23", + "clap 3.2.25", "derive_more 0.99.17", "hex", "serde", @@ -836,13 +836,13 @@ dependencies = [ [[package]] name = "clap" -version = "3.2.23" +version = "3.2.25" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5" +checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123" dependencies = [ "atty", "bitflags 1.3.2", - "clap_derive 3.2.18", + "clap_derive 3.2.25", "clap_lex 0.2.4", "indexmap", "once_cell", @@ -878,13 +878,13 @@ dependencies = [ [[package]] name = "clap_derive" -version = "3.2.18" +version = "3.2.25" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65" +checksum = "ae6371b8bdc8b7d3959e9cf7b22d4435ef3e79e138688421ec654acf8c81b008" dependencies = [ "heck 0.4.1", "proc-macro-error", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -896,7 +896,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3f9644cd56d6b87dbe899ef8b053e331c0637664e9e21a33dfcdc36093f5c5c4" dependencies = [ "heck 0.4.1", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -999,9 +999,9 @@ dependencies = [ [[package]] name = "cpufeatures" -version = "0.2.6" +version = "0.2.7" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "280a9f2d8b3a38871a3c8a46fb80db65e5e5ed97da80c4d08bf27fb63e35e181" +checksum = "3e4c1eaa2012c47becbbad2ab175484c2a84d1185b566fb2cc5b8707343dfe58" dependencies = [ "libc", ] @@ -1312,11 +1312,17 @@ version = "0.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "83fdaf97f4804dcebfa5862639bc9ce4121e82140bec2a987ac5140294865b5b" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] +[[package]] +name = "data-encoding" +version = "2.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c2e66c9d817f1720209181c316d28635c050fa304f9c79e47a520882661b7308" + [[package]] name = "datasize" version = "0.2.15" @@ -1336,7 +1342,7 @@ version = "0.2.15" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "613e4ee15899913285b7612004bbd490abd605be7b11d35afada5902fb6b91d5" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -1366,7 +1372,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321" dependencies = [ "convert_case", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "rustc_version", "syn 1.0.109", @@ -1387,7 +1393,7 @@ version = "1.0.0-beta.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "df541e0e2a8069352be228ce4b85a1da6f59bfd325e56f57e4b241babbc3f832" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", "unicode-xid 0.2.4", @@ -1810,7 +1816,7 @@ version = "0.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1e94aa31f7c0dc764f57896dc615ddd76fc13b0d5dca7eb6cc5e018a5a09ec06" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -1945,12 +1951,12 @@ dependencies = [ [[package]] name = "flate2" -version = "1.0.25" +version = "1.0.26" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a8a2db397cb1c8772f31494cb8917e48cd1e64f0fa7efac59fbd741a0a8ce841" +checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743" dependencies = [ "crc32fast", - "miniz_oxide", + "miniz_oxide 0.7.1", ] [[package]] @@ -2053,7 +2059,7 @@ version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -2853,7 +2859,7 @@ dependencies = [ "indexmap", "slab", "tokio", - "tokio-util 0.7.7", + "tokio-util 0.7.8", "tracing", ] @@ -3085,7 +3091,7 @@ dependencies = [ "httpdate", "itoa", "pin-project-lite", - "socket2", + "socket2 0.4.9", "tokio", "tower-service", "tracing", @@ -3308,9 +3314,9 @@ checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67" [[package]] name = "libc" -version = "0.2.147" +version = "0.2.149" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3" +checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b" [[package]] name = "libm" @@ -3326,9 +3332,9 @@ checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f" [[package]] name = "linux-raw-sys" -version = "0.3.8" +version = "0.3.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519" +checksum = "b64f40e5e03e0d54f03845c8197d0291253cdbedfb1cb46b13c2c117554a9f4c" [[package]] name = "list-authorization-keys" @@ -3514,6 +3520,15 @@ dependencies = [ "adler", ] +[[package]] +name = "miniz_oxide" +version = "0.7.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7" +dependencies = [ + "adler", +] + [[package]] name = "mint-purse" version = "0.1.0" @@ -3543,17 +3558,21 @@ dependencies = [ ] [[package]] -name = "multiparty" -version = "0.1.0" +name = "multer" +version = "2.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ed1ec6589a6d4a1e0b33b4c0a3f6ee96dfba88ebdb3da51403fd7cf0a24a4b04" +checksum = "01acbdc23469fd8fe07ab135923371d5f5a422fbf9c522158677c8eb15bc51c2" dependencies = [ "bytes", - "futures-core", + "encoding_rs", + "futures-util", + "http", "httparse", + "log", "memchr", - "pin-project-lite", - "try-lock", + "mime", + "spin", + "version_check", ] [[package]] @@ -3705,7 +3724,7 @@ version = "0.3.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "876a53fff98e03a936a674b29568b0e605f06b29372c2489ff4de23f1949743d" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -3821,7 +3840,7 @@ version = "0.1.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -3834,9 +3853,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf" [[package]] name = "openssl-src" -version = "111.25.2+1.1.1t" +version = "111.25.3+1.1.1t" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "320708a054ad9b3bf314688b5db87cf4d6683d64cfc835e2337924ae62bf4431" +checksum = "924757a6a226bf60da5f7dd0311a34d2b52283dd82ddeb103208ddc66362f80c" dependencies = [ "cc", ] @@ -3948,7 +3967,7 @@ dependencies = [ "libc", "redox_syscall 0.3.5", "smallvec", - "windows-targets 0.48.1", + "windows-targets 0.48.0", ] [[package]] @@ -3989,16 +4008,16 @@ version = "1.0.12" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "069bdb1e05adc7a8990dce9cc75370895fbe4e3d58b9b73bf1aee56359344a55" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] [[package]] name = "pin-project-lite" -version = "0.2.9" +version = "0.2.13" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116" +checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58" [[package]] name = "pin-utils" @@ -4095,7 +4114,7 @@ version = "0.28.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "30490e0852e58402b8fae0d39897b08a24f493023a4d6cf56b2e30f31ed57548" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "regex", "syn 1.0.109", @@ -4169,7 +4188,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c" dependencies = [ "proc-macro-error-attr", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", "version_check", @@ -4181,7 +4200,7 @@ version = "1.0.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "version_check", ] @@ -4197,9 +4216,9 @@ dependencies = [ [[package]] name = "proc-macro2" -version = "1.0.56" +version = "1.0.69" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435" +checksum = "134c189feb4956b20f6f547d2cf727d4c0fe06722b20a0eec87ed445a97f92da" dependencies = [ "unicode-ident", ] @@ -4252,7 +4271,7 @@ version = "1.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9fa06db3abc95f048e0afa371db5569b24912bb98a8e2e2e89c75c5b43bc2aa8" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -4351,7 +4370,7 @@ version = "1.0.26" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", ] [[package]] @@ -4493,13 +4512,13 @@ dependencies = [ [[package]] name = "regex" -version = "1.8.4" +version = "1.8.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f" +checksum = "af83e617f331cc6ae2da5443c602dfa5af81e517212d9d611a5b3ba1777b5370" dependencies = [ "aho-corasick", "memchr", - "regex-syntax 0.7.2", + "regex-syntax 0.7.1", ] [[package]] @@ -4519,9 +4538,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1" [[package]] name = "regex-syntax" -version = "0.7.2" +version = "0.7.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78" +checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c" [[package]] name = "regression-20210707" @@ -4661,9 +4680,9 @@ dependencies = [ [[package]] name = "reqwest" -version = "0.11.16" +version = "0.11.17" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "27b71749df584b7f4cac2c426c127a7c785a5106cc98f7a8feb044115f0fa254" +checksum = "13293b639a097af28fc8a90f22add145a9c954e49d77da06263d58cf44d5fb91" dependencies = [ "base64 0.21.0", "bytes", @@ -4688,7 +4707,7 @@ dependencies = [ "serde_urlencoded", "tokio", "tokio-native-tls", - "tokio-util 0.7.7", + "tokio-util 0.7.8", "tower-service", "url", "wasm-bindgen", @@ -4755,9 +4774,9 @@ dependencies = [ [[package]] name = "rustix" -version = "0.37.20" +version = "0.37.18" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b96e891d04aa506a6d1f318d2771bcb1c7dfda84e126660ace067c9b474bb2c0" +checksum = "8bbfc1d1c7c40c01715f47d71444744a81669ca84e8b63e25a55e169b1f86433" dependencies = [ "bitflags 1.3.2", "errno", @@ -4837,7 +4856,7 @@ version = "0.8.5" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "791c2c848cff1abaeae34fef7e70da5f93171d9eea81ce0fe969a1df627a61a8" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "serde_derive_internals", "syn 1.0.109", @@ -4940,7 +4959,7 @@ version = "1.0.160" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "291a097c63d8497e00160b166a967a4a79c64f3facdd01cbd7502231688d77df" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -4951,7 +4970,7 @@ version = "0.25.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1dbab34ca63057a1f15280bdf3c39f2b1eb1b54c17e98360e511637aef7418c6" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -4974,7 +4993,7 @@ version = "0.1.12" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "bcec881020c684085e55a25f7fd888954d56609ef363479dc5a1305eb0d40cab" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -5122,6 +5141,22 @@ dependencies = [ "winapi", ] +[[package]] +name = "socket2" +version = "0.5.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4031e820eb552adee9295814c0ced9e5cf38ddf1e8b7d566d6de8e2538ea989e" +dependencies = [ + "libc", + "windows-sys 0.48.0", +] + +[[package]] +name = "spin" +version = "0.9.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67" + [[package]] name = "spki" version = "0.7.2" @@ -5191,7 +5226,7 @@ checksum = "dcb5ae327f9cc13b68763b5749770cb9e048a99bd9dfdfa58d0cf05d5f64afe0" dependencies = [ "heck 0.3.3", "proc-macro-error", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -5221,7 +5256,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59" dependencies = [ "heck 0.4.1", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "rustversion", "syn 1.0.109", @@ -5234,7 +5269,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ad8d03b598d3d0fff69bf533ee3ef19b8eeb342729596df84bcc7e1f96ec4059" dependencies = [ "heck 0.4.1", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "rustversion", "syn 2.0.15", @@ -5263,7 +5298,7 @@ version = "1.0.109" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "unicode-ident", ] @@ -5274,7 +5309,7 @@ version = "2.0.15" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "unicode-ident", ] @@ -5367,7 +5402,7 @@ version = "1.0.40" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -5438,18 +5473,17 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20" [[package]] name = "tokio" -version = "1.29.1" +version = "1.33.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da" +checksum = "4f38200e3ef7995e5ef13baec2f432a6da0aa9ac495b2c0e8f3b7eec2c92d653" dependencies = [ - "autocfg", "backtrace", "bytes", "libc", "mio", "num_cpus", "pin-project-lite", - "socket2", + "socket2 0.5.4", "tokio-macros", "windows-sys 0.48.0", ] @@ -5460,7 +5494,7 @@ version = "2.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 2.0.15", ] @@ -5489,21 +5523,21 @@ dependencies = [ [[package]] name = "tokio-stream" -version = "0.1.12" +version = "0.1.14" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8fb52b74f05dbf495a8fba459fdc331812b96aa086d9eb78101fa0d4569c3313" +checksum = "397c988d37662c7dda6d2208364a706264bf3d6138b11d436cbac0ad38832842" dependencies = [ "futures-core", "pin-project-lite", "tokio", - "tokio-util 0.7.7", + "tokio-util 0.7.8", ] [[package]] name = "tokio-tungstenite" -version = "0.18.0" +version = "0.20.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "54319c93411147bced34cb5609a80e0a8e44c5999c93903a81cd866630ec0bfd" +checksum = "212d5dcb2a1ce06d81107c3d0ffa3121fe974b73f068c8282cb1c32328113b6c" dependencies = [ "futures-util", "log", @@ -5528,9 +5562,9 @@ dependencies = [ [[package]] name = "tokio-util" -version = "0.7.7" +version = "0.7.8" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5427d89453009325de0d8f342c9490009f76e999cb7672d77e46267448f7e6b2" +checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d" dependencies = [ "bytes", "futures-core", @@ -5558,7 +5592,7 @@ dependencies = [ "futures-core", "pin-project-lite", "tokio", - "tokio-util 0.7.7", + "tokio-util 0.7.8", "tower-layer", "tower-service", "tracing", @@ -5591,13 +5625,13 @@ dependencies = [ [[package]] name = "tracing-attributes" -version = "0.1.23" +version = "0.1.24" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4017f8f45139870ca7e672686113917c71c7a6e02d4924eda67186083c03081a" +checksum = "0f57e3ca2a01450b1a921183a9c9cbfda207fd822cef4ccb00a65402cbba7a74" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", - "syn 1.0.109", + "syn 2.0.15", ] [[package]] @@ -5800,13 +5834,13 @@ checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed" [[package]] name = "tungstenite" -version = "0.18.0" +version = "0.20.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "30ee6ab729cd4cf0fd55218530c4522ed30b7b6081752839b68fcec8d0960788" +checksum = "9e3dac10fd62eaf6617d3a904ae222845979aec67c615d1c842b4002c7666fb9" dependencies = [ - "base64 0.13.1", "byteorder", "bytes", + "data-encoding", "http", "httparse", "log", @@ -6002,7 +6036,7 @@ version = "0.9.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "99d0801cec07737d88cb900e6419f6f68733867f90b3faaa837e84692e101bf0" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "pulldown-cmark", "regex", "semver", @@ -6080,7 +6114,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0a6e5bd22c71e77d60140b0bd5be56155a37e5bd14e24f5f87298040d0cc40d7" dependencies = [ "heck 0.3.3", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", ] @@ -6097,9 +6131,9 @@ dependencies = [ [[package]] name = "warp" -version = "0.3.4" +version = "0.3.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "27e1a710288f0f91a98dd8a74f05b76a10768db245ce183edf64dc1afdc3016c" +checksum = "c1e92e22e03ff1230c03a1a8ee37d2f89cd489e2e541b7550d6afad96faed169" dependencies = [ "async-compression", "bytes", @@ -6111,7 +6145,7 @@ dependencies = [ "log", "mime", "mime_guess", - "multiparty", + "multer", "percent-encoding", "pin-project", "rustls-pemfile", @@ -6122,7 +6156,7 @@ dependencies = [ "tokio", "tokio-stream", "tokio-tungstenite", - "tokio-util 0.7.7", + "tokio-util 0.7.8", "tower-service", "tracing", ] @@ -6152,7 +6186,7 @@ dependencies = [ "bumpalo", "log", "once_cell", - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", "wasm-bindgen-shared", @@ -6186,7 +6220,7 @@ version = "0.2.84" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "2aff81306fcac3c7515ad4e177f521b5c9a15f2b08f4e32d823066102f35a5f6" dependencies = [ - "proc-macro2 1.0.56", + "proc-macro2 1.0.69", "quote 1.0.26", "syn 1.0.109", "wasm-bindgen-backend", @@ -6201,9 +6235,9 @@ checksum = "0046fef7e28c3804e5e38bfa31ea2a0f73905319b677e57ebe37e49358989b5d" [[package]] name = "wasm-encoder" -version = "0.25.0" +version = "0.26.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4eff853c4f09eec94d76af527eddad4e9de13b11d6286a1ef7134bc30135a2b7" +checksum = "d05d0b6fcd0aeb98adf16e7975331b3c17222aa815148f5b976370ce589d80ef" dependencies = [ "leb128", ] @@ -6262,9 +6296,9 @@ checksum = "b35c86d22e720a07d954ebbed772d01180501afe7d03d464f413bb5f8914a8d6" [[package]] name = "wast" -version = "56.0.0" +version = "57.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6b54185c051d7bbe23757d50fe575880a2426a2f06d2e9f6a10fd9a4a42920c0" +checksum = "6eb0f5ed17ac4421193c7477da05892c2edafd67f9639e3c11a82086416662dc" dependencies = [ "leb128", "memchr", @@ -6274,9 +6308,9 @@ dependencies = [ [[package]] name = "wat" -version = "1.0.62" +version = "1.0.63" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "56681922808216ab86d96bb750f70d500b5a7800e41564290fd46bb773581299" +checksum = "ab9ab0d87337c3be2bb6fc5cd331c4ba9fd6bcb4ee85048a0dd59ed9ecf92e53" dependencies = [ "wast", ] @@ -6346,7 +6380,7 @@ version = "0.48.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f" dependencies = [ - "windows-targets 0.48.1", + "windows-targets 0.48.0", ] [[package]] @@ -6379,7 +6413,7 @@ version = "0.48.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9" dependencies = [ - "windows-targets 0.48.1", + "windows-targets 0.48.0", ] [[package]] @@ -6399,9 +6433,9 @@ dependencies = [ [[package]] name = "windows-targets" -version = "0.48.1" +version = "0.48.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f" +checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5" dependencies = [ "windows_aarch64_gnullvm 0.48.0", "windows_aarch64_msvc 0.48.0", diff --git a/node/src/components/network.rs b/node/src/components/network.rs index ff79881317..d3dc01a6ba 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -490,11 +490,23 @@ where }; trace!(%msg, encoded_size=payload.len(), %channel, "enqueing message for sending"); - // Build the request. - let request = connection - .rpc_client - .create_request(channel.into_channel_id()) - .with_payload(payload); + /// Build the request. + /// + /// Internal helper function to ensure requests are always built the same way. + // Note: Ideally, this would be a closure, but lifetime inference does not + // work out here, and we cannot annotate lifetimes on closures. + #[inline(always)] + fn mk_request<'a>( + rpc_client: &'a JulietRpcClient<{ Channel::COUNT }>, + channel: Channel, + payload: Bytes, + ) -> juliet::rpc::JulietRpcRequestBuilder<'a, { Channel::COUNT }> { + rpc_client + .create_request(channel.into_channel_id()) + .with_payload(payload) + } + + let request = mk_request(&connection.rpc_client, channel, payload); // Attempt to enqueue it directly, regardless of what `message_queued_responder` is. match request.try_queue_for_sending() { @@ -521,9 +533,7 @@ where // since the networking component usually controls its own futures, we are // allowed to spawn these as well. tokio::spawn(async move { - let guard = client - .create_request(channel.into_channel_id()) - .with_payload(payload) + let guard = mk_request(&client, channel, payload) .queue_for_sending() .await; responder.respond(()).await; From ba4c80bf5d5bf4fbdc212b3507de3038644ea6ee Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 Oct 2023 06:40:25 +0200 Subject: [PATCH 728/735] Add a fixed 30 second timeout to outgoing requests --- node/src/components/network.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index d3dc01a6ba..90e42b3717 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -504,6 +504,7 @@ where rpc_client .create_request(channel.into_channel_id()) .with_payload(payload) + .with_timeout(Duration::from_secs(30)) } let request = mk_request(&connection.rpc_client, channel, payload); From d96f67401f370c1831b19fd4cf1d910ef335cf59 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 Oct 2023 06:50:49 +0200 Subject: [PATCH 729/735] Fix lifetime elision lint --- node/src/components/network.rs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 90e42b3717..2617b66fac 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -496,11 +496,11 @@ where // Note: Ideally, this would be a closure, but lifetime inference does not // work out here, and we cannot annotate lifetimes on closures. #[inline(always)] - fn mk_request<'a>( - rpc_client: &'a JulietRpcClient<{ Channel::COUNT }>, + fn mk_request( + rpc_client: &JulietRpcClient<{ Channel::COUNT }>, channel: Channel, payload: Bytes, - ) -> juliet::rpc::JulietRpcRequestBuilder<'a, { Channel::COUNT }> { + ) -> juliet::rpc::JulietRpcRequestBuilder<'_, { Channel::COUNT }> { rpc_client .create_request(channel.into_channel_id()) .with_payload(payload) From 38082cc3bbcb8f9a565f64de0cdd4726cec49408 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 Oct 2023 07:07:12 +0200 Subject: [PATCH 730/735] Remove ping/pong feature in favor of timeouts --- node/src/components/network.rs | 50 -- node/src/components/network/blocklist.rs | 5 - node/src/components/network/health.rs | 825 ----------------------- node/src/components/network/insights.rs | 42 +- node/src/components/network/message.rs | 28 +- node/src/components/network/outgoing.rs | 116 +--- 6 files changed, 14 insertions(+), 1052 deletions(-) delete mode 100644 node/src/components/network/health.rs diff --git a/node/src/components/network.rs b/node/src/components/network.rs index 2617b66fac..ce87be4a86 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -31,7 +31,6 @@ mod error; mod event; mod gossiped_address; mod handshake; -mod health; mod identity; mod insights; mod message; @@ -85,7 +84,6 @@ use self::{ chain_info::ChainInfo, error::{ConnectionError, MessageReceiverError}, event::{IncomingConnection, OutgoingConnection}, - health::{HealthConfig, TaggedTimestamp}, message::NodeKeyPair, metrics::Metrics, outgoing::{DialOutcome, DialRequest, OutgoingConfig, OutgoingManager}, @@ -140,20 +138,6 @@ const BASE_RECONNECTION_TIMEOUT: Duration = Duration::from_secs(1); /// Interval during which to perform outgoing manager housekeeping. const OUTGOING_MANAGER_SWEEP_INTERVAL: Duration = Duration::from_secs(1); -/// How often to send a ping down a healthy connection. -const PING_INTERVAL: Duration = Duration::from_secs(30); - -/// Maximum time for a ping until it connections are severed. -/// -/// If you are running a network under very extreme conditions, it may make sense to alter these -/// values, but usually these values should require no changing. -/// -/// `PING_TIMEOUT` should be less than `PING_INTERVAL` at all times. -const PING_TIMEOUT: Duration = Duration::from_secs(6); - -/// How many pings to send before giving up and dropping the connection. -const PING_RETRIES: u16 = 5; - #[derive(Clone, DataSize, Debug)] pub(crate) struct OutgoingHandle { #[data_size(skip)] // Unfortunately, there is no way to inspect an `UnboundedSender`. @@ -244,12 +228,6 @@ where base_timeout: BASE_RECONNECTION_TIMEOUT, unblock_after: cfg.blocklist_retain_duration.into(), sweep_timeout: cfg.max_addr_pending_time.into(), - health: HealthConfig { - ping_interval: PING_INTERVAL, - ping_timeout: PING_TIMEOUT, - ping_retries: PING_RETRIES, - pong_limit: (1 + PING_RETRIES as u32) * 2, - }, }, net_metrics.create_outgoing_metrics(), ); @@ -1009,14 +987,6 @@ where debug!("dropping connection, as requested"); }) } - DialRequest::SendPing { - peer_id, - nonce, - span, - } => span.in_scope(|| { - trace!("enqueuing ping to be sent"); - self.send_message(peer_id, Arc::new(Message::Ping { nonce }), None); - }), } } @@ -1044,26 +1014,6 @@ where warn!("received unexpected handshake"); Effects::new() } - Message::Ping { nonce } => { - // Send a pong. Incoming pings and pongs are rate limited. - - self.send_message(peer_id, Arc::new(Message::Pong { nonce }), None); - Effects::new() - } - Message::Pong { nonce } => { - // Record the time the pong arrived and forward it to outgoing. - let pong = TaggedTimestamp::from_parts(Instant::now(), nonce); - if self.outgoing_manager.record_pong(peer_id, pong) { - effect_builder - .announce_block_peer_with_justification( - peer_id, - BlocklistJustification::PongLimitExceeded, - ) - .ignore() - } else { - Effects::new() - } - } Message::Payload(payload) => effect_builder .announce_incoming(peer_id, payload, ticket) .ignore(), diff --git a/node/src/components/network/blocklist.rs b/node/src/components/network/blocklist.rs index 1dfe232455..760e031845 100644 --- a/node/src/components/network/blocklist.rs +++ b/node/src/components/network/blocklist.rs @@ -37,8 +37,6 @@ pub(crate) enum BlocklistJustification { /// The era for which the invalid value was destined. era: EraId, }, - /// Too many unasked or expired pongs were sent by the peer. - PongLimitExceeded, /// Peer misbehaved during consensus and is blocked for it. BadConsensusBehavior, /// Peer is on the wrong network. @@ -76,9 +74,6 @@ impl Display for BlocklistJustification { BlocklistJustification::SentInvalidConsensusValue { era } => { write!(f, "sent an invalid consensus value in {}", era) } - BlocklistJustification::PongLimitExceeded => { - f.write_str("wrote too many expired or invalid pongs") - } BlocklistJustification::BadConsensusBehavior => { f.write_str("sent invalid data in consensus") } diff --git a/node/src/components/network/health.rs b/node/src/components/network/health.rs deleted file mode 100644 index 18d018f12e..0000000000 --- a/node/src/components/network/health.rs +++ /dev/null @@ -1,825 +0,0 @@ -//! Health-check state machine. -//! -//! Health checks perform periodic pings to remote peers to ensure the connection is still alive. It -//! has somewhat complicated logic that is encoded in the `ConnectionHealth` struct, which has -//! multiple implicit states. - -use std::{ - fmt::{self, Display, Formatter}, - time::{Duration, Instant}, -}; - -use datasize::DataSize; -use rand::Rng; -use serde::{Deserialize, Serialize}; - -use crate::utils::specimen::{Cache, LargestSpecimen, SizeEstimator}; - -/// Connection health information. -/// -/// All data related to the ping/pong functionality used to verify a peer's networking liveness. -#[derive(Clone, Copy, DataSize, Debug)] -pub(crate) struct ConnectionHealth { - /// The moment the connection was established. - pub(crate) connected_since: Instant, - /// The last ping that was requested to be sent. - pub(crate) last_ping_sent: Option, - /// The most recent pong received. - pub(crate) last_pong_received: Option, - /// Number of invalid pongs received, reset upon receiving a valid pong. - pub(crate) invalid_pong_count: u32, - /// Number of pings that timed out. - pub(crate) ping_timeouts: u32, -} - -/// Health check configuration. -#[derive(DataSize, Debug)] -pub(crate) struct HealthConfig { - /// How often to send a ping to ensure a connection is established. - /// - /// Determines how soon after connecting or a successful ping another ping is sent. - pub(crate) ping_interval: Duration, - /// Duration during which a ping must succeed to be considered successful. - pub(crate) ping_timeout: Duration, - /// Number of retries before giving up and disconnecting a peer due to too many failed pings. - pub(crate) ping_retries: u16, - /// How many spurious pongs to tolerate before banning a peer. - pub(crate) pong_limit: u32, -} - -/// A timestamp with an associated nonce. -#[derive(Clone, Copy, DataSize, Debug)] -pub(crate) struct TaggedTimestamp { - /// The actual timestamp. - timestamp: Instant, - /// The nonce of the timestamp. - nonce: Nonce, -} - -impl TaggedTimestamp { - /// Creates a new tagged timestamp with a random nonce. - pub(crate) fn new(rng: &mut R, timestamp: Instant) -> Self { - Self { - timestamp, - nonce: rng.gen(), - } - } - - /// Creates a new tagged timestamp from parts. - pub(crate) fn from_parts(timestamp: Instant, nonce: Nonce) -> Self { - TaggedTimestamp { nonce, timestamp } - } - - /// Returns the actual timestamp. - pub(crate) fn timestamp(&self) -> Instant { - self.timestamp - } - - /// Returns the nonce inside the timestamp. - pub(crate) fn nonce(self) -> Nonce { - self.nonce - } -} - -/// A number-used-once, specifically one used in pings. -// Note: This nonce used to be a `u32`, but that is too small - since we immediately disconnect when -// a duplicate ping is generated, a `u32` has a ~ 1/(2^32) chance of a consecutive collision. -// -// If we ping every 5 seconds, this is a ~ 0.01% chance over a month, which is too high over -// thousands over nodes. At 64 bits, in theory the upper bound is 0.0000000002%, which is -// better (the period of the RNG used should be >> 64 bits). -// -// While we do check for consecutive ping nonces being generated, we still like the lower -// collision chance for repeated pings being sent. -#[derive(Clone, Copy, DataSize, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)] -pub(crate) struct Nonce(u64); - -impl Display for Nonce { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - write!(f, "{:016X}", self.0) - } -} - -impl rand::distributions::Distribution for rand::distributions::Standard { - #[inline(always)] - fn sample(&self, rng: &mut R) -> Nonce { - Nonce(rng.gen()) - } -} - -impl ConnectionHealth { - /// Creates a new connection health instance, recording when the connection was established. - pub(crate) fn new(connected_since: Instant) -> Self { - Self { - connected_since, - last_ping_sent: None, - last_pong_received: None, - invalid_pong_count: 0, - ping_timeouts: 0, - } - } -} - -impl ConnectionHealth { - /// Calculate the round-trip time, if possible. - pub(crate) fn calc_rrt(&self) -> Option { - match (self.last_ping_sent, self.last_pong_received) { - (Some(last_ping), Some(last_pong)) if last_ping.nonce == last_pong.nonce => { - Some(last_pong.timestamp.duration_since(last_ping.timestamp)) - } - _ => None, - } - } - - /// Check current health status. - /// - /// This function must be polled periodically and returns a potential action to be performed. - pub(crate) fn update_health( - &mut self, - rng: &mut R, - cfg: &HealthConfig, - now: Instant, - ) -> HealthCheckOutcome { - // Having received too many pongs should always result in a disconnect. - if self.invalid_pong_count > cfg.pong_limit { - return HealthCheckOutcome::GiveUp; - } - - // Our honeymoon period is from first establishment of the connection until we send a ping. - if now.saturating_duration_since(self.connected_since) < cfg.ping_interval { - return HealthCheckOutcome::DoNothing; - } - - let send_ping = match self.last_ping_sent { - Some(last_ping) => { - match self.last_pong_received { - Some(prev_pong) if prev_pong.nonce() == last_ping.nonce() => { - // Normal operation. The next ping should be sent in a regular interval - // after receiving the last pong. - now >= prev_pong.timestamp() + cfg.ping_interval - } - - _ => { - // No matching pong on record. Check if we need to timeout the ping. - if now >= last_ping.timestamp() + cfg.ping_timeout { - self.ping_timeouts += 1; - // Clear the `last_ping_sent`, schedule another to be sent. - self.last_ping_sent = None; - true - } else { - false - } - } - } - } - None => true, - }; - - if send_ping { - if self.ping_timeouts > cfg.ping_retries as u32 { - // We have exceeded the timeouts and will give up as a result. - return HealthCheckOutcome::GiveUp; - } - - let ping = loop { - let candidate = TaggedTimestamp::new(rng, now); - - if let Some(prev) = self.last_ping_sent { - if prev.nonce() == candidate.nonce() { - // Ensure we don't produce consecutive pings. - continue; - } - } - - break candidate; - }; - - self.last_ping_sent = Some(ping); - HealthCheckOutcome::SendPing(ping.nonce()) - } else { - HealthCheckOutcome::DoNothing - } - } - - /// Records a pong that has been sent. - /// - /// If `true`, the maximum number of pongs has been exceeded and the peer should be banned. - pub(crate) fn record_pong(&mut self, cfg: &HealthConfig, tt: TaggedTimestamp) -> bool { - let is_valid_pong = match self.last_ping_sent { - Some(last_ping) if last_ping.nonce() == tt.nonce => { - // Check if we already received a pong for this ping, which is a protocol violation. - if self - .last_pong_received - .map(|existing| existing.nonce() == tt.nonce) - .unwrap_or(false) - { - // Ping is a collsion, ban. - return true; - } - - if last_ping.timestamp() > tt.timestamp() { - // Ping is from the past somehow, ignore it (probably a bug on our side). - return false; - } - - // The ping is valid if it is within the timeout period. - last_ping.timestamp() + cfg.ping_timeout >= tt.timestamp() - } - _ => { - // Either the nonce did not match, or the nonce mismatched. - false - } - }; - - if is_valid_pong { - // Our pong is valid, reset invalid and ping count, then record it. - self.invalid_pong_count = 0; - self.ping_timeouts = 0; - self.last_pong_received = Some(tt); - false - } else { - self.invalid_pong_count += 1; - // If we have exceeded the invalid pong limit, ban. - self.invalid_pong_count > cfg.pong_limit - } - } -} - -/// The outcome of periodic health check. -#[derive(Clone, Copy, Debug)] - -pub(crate) enum HealthCheckOutcome { - /// Do nothing, as we recently took action. - DoNothing, - /// Send a ping with the given nonce. - SendPing(Nonce), - /// Give up on (i.e. terminate) the connection, as we exceeded the allowable ping limit. - GiveUp, -} - -impl LargestSpecimen for Nonce { - fn largest_specimen(estimator: &E, cache: &mut Cache) -> Self { - Self(LargestSpecimen::largest_specimen(estimator, cache)) - } -} - -#[cfg(test)] -mod tests { - use std::{collections::HashSet, time::Duration}; - - use assert_matches::assert_matches; - use rand::Rng; - - use super::{ConnectionHealth, HealthCheckOutcome, HealthConfig}; - use crate::{ - components::network::health::TaggedTimestamp, testing::test_clock::TestClock, - types::NodeRng, - }; - - impl HealthConfig { - pub(crate) fn test_config() -> Self { - // Note: These values are assumed in tests, so do not change them. - HealthConfig { - ping_interval: Duration::from_secs(5), - ping_timeout: Duration::from_secs(2), - ping_retries: 3, - pong_limit: 6, - } - } - } - - struct Fixtures { - clock: TestClock, - cfg: HealthConfig, - rng: NodeRng, - health: ConnectionHealth, - } - - /// Sets up fixtures used in almost every test. - fn fixtures() -> Fixtures { - let clock = TestClock::new(); - let cfg = HealthConfig::test_config(); - let rng = crate::new_rng(); - - let health = ConnectionHealth::new(clock.now()); - - Fixtures { - clock, - cfg, - rng, - health, - } - } - - #[test] - fn scenario_no_response() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // Repeated checks should not change the outcome. - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // After 4.9 seconds, we still do not send a ping. - clock.advance(Duration::from_millis(4900)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // At 5, we expect our first ping. - clock.advance(Duration::from_millis(100)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Checking health again should not result in another ping. - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - clock.advance(Duration::from_millis(100)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // After two seconds, we expect another ping to be sent, due to timeouts. - clock.advance(Duration::from_millis(2000)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // At this point, two pings have been sent. Configuration says to retry 3 times, so a total - // of five pings is expected. - clock.advance(Duration::from_millis(2000)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - clock.advance(Duration::from_millis(2000)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Finally, without receiving a ping at all, we give up. - clock.advance(Duration::from_millis(2000)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::GiveUp - ); - } - - #[test] - fn pings_use_different_nonces() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - clock.advance(Duration::from_secs(5)); - - let mut nonce_set = HashSet::new(); - - nonce_set.insert(assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - )); - clock.advance(Duration::from_secs(2)); - - nonce_set.insert(assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - )); - clock.advance(Duration::from_secs(2)); - - nonce_set.insert(assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - )); - clock.advance(Duration::from_secs(2)); - - nonce_set.insert(assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - )); - - // Since it is a set, we expect less than 4 items if there were any duplicates. - assert_eq!(nonce_set.len(), 4); - } - - #[test] - fn scenario_all_working() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // At 5 seconds, we expect our first ping. - clock.advance(Duration::from_secs(5)); - - let nonce_1 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - - // Record a reply 500 ms later. - clock.advance(Duration::from_millis(500)); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_1))); - - // Our next pong should be 5 seconds later, not 4.5. - clock.advance(Duration::from_millis(4500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - clock.advance(Duration::from_millis(500)); - - let nonce_2 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - - // We test an edge case here where we use the same timestamp for the received pong. - clock.advance(Duration::from_millis(500)); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_2))); - - // Afterwards, no ping should be sent. - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // Do 1000 additional ping/pongs. - for _ in 0..1000 { - clock.advance(Duration::from_millis(5000)); - let nonce = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - clock.advance(Duration::from_millis(250)); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce))); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - } - } - - #[test] - fn scenario_intermittent_failures() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - // We miss two pings initially, before recovering. - clock.advance(Duration::from_secs(5)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - clock.advance(Duration::from_secs(2)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - clock.advance(Duration::from_secs(2)); - - let nonce_1 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - - clock.advance(Duration::from_secs(1)); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_1))); - - // We successfully "recovered", this should reset our ping counts. Miss three pings before - // successfully receiving a pong from 4th from here on out. - clock.advance(Duration::from_millis(5500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - let nonce_2 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - clock.advance(Duration::from_millis(500)); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_2))); - - // This again should reset. We miss four more pings and are disconnected. - clock.advance(Duration::from_millis(5500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - clock.advance(Duration::from_millis(2500)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::GiveUp - ); - } - - #[test] - fn ignores_unwanted_pongs() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - clock.advance(Duration::from_secs(5)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Make the `ConnectionHealth` receive some unasked pongs, without exceeding the unasked - // pong limit. - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - - // The retry delay is 2 seconds (instead of 5 for the next pong after success), so ensure - // we retry due to not having received the correct nonce in the pong. - - clock.advance(Duration::from_secs(2)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - } - - #[test] - fn ensure_excessive_pongs_result_in_ban() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - clock.advance(Duration::from_secs(5)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Make the `ConnectionHealth` receive some unasked pongs, without exceeding the unasked - // pong limit. - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - // 6 unasked pongs is still okay. - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - assert!(health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - // 7 is too much. - - // For good measure, we expect the health check to also output a disconnect instruction. - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::GiveUp - ); - } - - #[test] - fn time_reversal_does_not_crash_but_is_ignored() { - // Usually a pong for a given (or any) nonce should always be received with a timestamp - // equal or later than the ping sent out. Due to a programming error or a lucky attacker + - // scheduling issue, there is a very minute chance this can actually happen. - // - // In these cases, the pongs should just be discarded, not crashing due to a underflow in - // the comparison. - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - clock.advance(Duration::from_secs(5)); // t = 5 - - let nonce_1 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - - // Ignore the nonce if sent in the past (and also don't crash). - clock.rewind(Duration::from_secs(1)); // t = 4 - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_1))); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - - // Another ping should be sent out, since `nonce_1` was ignored. - clock.advance(Duration::from_secs(3)); // t = 7 - let nonce_2 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - - // Nonce 2 will be received seemingly before the connection was even established. - clock.rewind(Duration::from_secs(3600)); - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_2))); - } - - #[test] - fn handles_missed_health_checks() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - clock.advance(Duration::from_secs(15)); - - // We initially exceed our scheduled first ping by 10 seconds. This will cause the ping to - // be sent right there and then. - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Going forward 1 second should not change anything. - clock.advance(Duration::from_secs(1)); - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - // After another second, two seconds have passed since sending the first ping in total, so - // send another once. - clock.advance(Duration::from_secs(1)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // We have missed two pings total, now wait an hour. This will trigger the third ping. - clock.advance(Duration::from_secs(3600)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Fourth right after - clock.advance(Duration::from_secs(2)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - // Followed by a disconnect. - clock.advance(Duration::from_secs(2)); - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::GiveUp - ); - } - - #[test] - fn ignores_time_travel() { - // Any call of the health update with timestamps that are provably from the past (i.e. - // before a recorded timestamp like a previous ping) should be ignored. - - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - clock.advance(Duration::from_secs(5)); // t = 5 - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - - clock.rewind(Duration::from_secs(3)); // t = 2 - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - - clock.advance(Duration::from_secs(4)); // t = 6 - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::DoNothing - ); - clock.advance(Duration::from_secs(1)); // t = 7 - - assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(_) - ); - } - - #[test] - fn duplicate_pong_immediately_terminates() { - let Fixtures { - mut clock, - cfg, - mut rng, - mut health, - } = fixtures(); - - clock.advance(Duration::from_secs(5)); - let nonce_1 = assert_matches!( - health.update_health(&mut rng, &cfg, clock.now()), - HealthCheckOutcome::SendPing(nonce) => nonce - ); - - clock.advance(Duration::from_secs(1)); - - // Recording the pong once is fine, but the second time should result in a ban. - assert!(!health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_1))); - assert!(health.record_pong(&cfg, TaggedTimestamp::from_parts(clock.now(), nonce_1))); - } -} diff --git a/node/src/components/network/insights.rs b/node/src/components/network/insights.rs index fd82335b40..db7355b9be 100644 --- a/node/src/components/network/insights.rs +++ b/node/src/components/network/insights.rs @@ -9,7 +9,7 @@ use std::{ collections::BTreeSet, fmt::{self, Debug, Display, Formatter}, net::SocketAddr, - time::{Duration, SystemTime}, + time::SystemTime, }; use casper_types::{EraId, PublicKey}; @@ -68,10 +68,6 @@ enum OutgoingStateInsight { Connected { peer_id: NodeId, peer_addr: SocketAddr, - last_ping_sent: Option, - last_pong_received: Option, - invalid_pong_count: u32, - rtt: Option, }, Blocked { since: SystemTime, @@ -112,21 +108,9 @@ impl OutgoingStateInsight { error: error.as_ref().map(ToString::to_string), last_failure: anchor.convert(*last_failure), }, - OutgoingState::Connected { - peer_id, - handle, - health, - } => OutgoingStateInsight::Connected { + OutgoingState::Connected { peer_id, handle } => OutgoingStateInsight::Connected { peer_id: *peer_id, peer_addr: handle.peer_addr, - last_ping_sent: health - .last_ping_sent - .map(|tt| anchor.convert(tt.timestamp())), - last_pong_received: health - .last_pong_received - .map(|tt| anchor.convert(tt.timestamp())), - invalid_pong_count: health.invalid_pong_count, - rtt: health.calc_rrt(), }, OutgoingState::Blocked { since, @@ -162,26 +146,8 @@ impl OutgoingStateInsight { OptDisplay::new(error.as_ref(), "none"), time_delta(now, *last_failure) ), - OutgoingStateInsight::Connected { - peer_id, - peer_addr, - last_ping_sent, - last_pong_received, - invalid_pong_count, - rtt, - } => { - let rtt_ms = rtt.map(|duration| duration.as_millis()); - - write!( - f, - "connected -> {} @ {} (rtt {}, invalid {}, last ping/pong {}/{})", - peer_id, - peer_addr, - OptDisplay::new(rtt_ms, "?"), - invalid_pong_count, - OptDisplay::new(last_ping_sent.map(|t| time_delta(now, t)), "-"), - OptDisplay::new(last_pong_received.map(|t| time_delta(now, t)), "-"), - ) + OutgoingStateInsight::Connected { peer_id, peer_addr } => { + write!(f, "connected -> {} @ {}", peer_id, peer_addr,) } OutgoingStateInsight::Blocked { since, diff --git a/node/src/components/network/message.rs b/node/src/components/network/message.rs index b58c9f524e..fa41a799b5 100644 --- a/node/src/components/network/message.rs +++ b/node/src/components/network/message.rs @@ -17,7 +17,7 @@ use casper_hashing::Digest; use casper_types::testing::TestRng; use casper_types::{crypto, AsymmetricType, ProtocolVersion, PublicKey, SecretKey, Signature}; -use super::{connection_id::ConnectionId, health::Nonce, serialize_network_message, Ticket}; +use super::{connection_id::ConnectionId, serialize_network_message, Ticket}; use crate::{ effect::EffectBuilder, protocol, @@ -53,16 +53,6 @@ pub(crate) enum Message

{ #[serde(default)] chainspec_hash: Option, }, - /// A ping request. - Ping { - /// The nonce to be returned with the pong. - nonce: Nonce, - }, - /// A pong response. - Pong { - /// Nonce to match pong to ping. - nonce: Nonce, - }, Payload(P), } @@ -72,9 +62,7 @@ impl Message

{ #[allow(dead_code)] // TODO: Re-add, once decision is made whether to keep message classses. pub(super) fn classify(&self) -> MessageKind { match self { - Message::Handshake { .. } | Message::Ping { .. } | Message::Pong { .. } => { - MessageKind::Protocol - } + Message::Handshake { .. } => MessageKind::Protocol, Message::Payload(payload) => payload.message_kind(), } } @@ -83,7 +71,7 @@ impl Message

{ #[inline] pub(super) fn is_low_priority(&self) -> bool { match self { - Message::Handshake { .. } | Message::Ping { .. } | Message::Pong { .. } => false, + Message::Handshake { .. } => false, Message::Payload(payload) => payload.is_low_priority(), } } @@ -93,8 +81,6 @@ impl Message

{ match self { Message::Handshake { .. } => Channel::Network, Message::Payload(payload) => payload.get_channel(), - Message::Ping { .. } => Channel::Network, - Message::Pong { .. } => Channel::Network, } } } @@ -272,8 +258,6 @@ impl Display for Message

{ OptDisplay::new(chainspec_hash.as_ref(), "none") ) } - Message::Ping { nonce } => write!(f, "ping({})", nonce), - Message::Pong { nonce } => write!(f, "pong({})", nonce), Message::Payload(payload) => write!(f, "payload: {}", payload), } } @@ -437,12 +421,6 @@ mod specimen_support { consensus_certificate: LargestSpecimen::largest_specimen(estimator, cache), chainspec_hash: LargestSpecimen::largest_specimen(estimator, cache), }, - MessageDiscriminants::Ping => Message::Ping { - nonce: LargestSpecimen::largest_specimen(estimator, cache), - }, - MessageDiscriminants::Pong => Message::Pong { - nonce: LargestSpecimen::largest_specimen(estimator, cache), - }, MessageDiscriminants::Payload => { Message::Payload(LargestSpecimen::largest_specimen(estimator, cache)) } diff --git a/node/src/components/network/outgoing.rs b/node/src/components/network/outgoing.rs index 72a201763d..318f02c9e8 100644 --- a/node/src/components/network/outgoing.rs +++ b/node/src/components/network/outgoing.rs @@ -105,14 +105,9 @@ use datasize::DataSize; use prometheus::IntGauge; use rand::Rng; -use tracing::{debug, error, error_span, field::Empty, info, trace, warn, Span}; +use tracing::{debug, error_span, field::Empty, info, trace, warn, Span}; -use super::{ - blocklist::BlocklistJustification, - display_error, - health::{ConnectionHealth, HealthCheckOutcome, HealthConfig, Nonce, TaggedTimestamp}, - NodeId, -}; +use super::{blocklist::BlocklistJustification, display_error, NodeId}; /// An outgoing connection/address in various states. #[derive(DataSize, Debug)] @@ -160,8 +155,6 @@ where /// /// Can be a channel to decouple sending, or even a direct connection handle. handle: H, - /// Health of the connection. - health: ConnectionHealth, }, /// The address was blocked and will not be retried. Blocked { @@ -256,13 +249,6 @@ pub(crate) enum DialRequest { /// this request can immediately be followed by a connection request, as in the case of a ping /// timeout. Disconnect { handle: H, span: Span }, - - /// Send a ping to a peer. - SendPing { - peer_id: NodeId, - nonce: Nonce, - span: Span, - }, } impl Display for DialRequest @@ -277,9 +263,6 @@ where DialRequest::Disconnect { handle, .. } => { write!(f, "disconnect: {}", handle) } - DialRequest::SendPing { peer_id, nonce, .. } => { - write!(f, "ping[{}]: {}", nonce, peer_id) - } } } } @@ -295,8 +278,6 @@ pub struct OutgoingConfig { pub(crate) unblock_after: Duration, /// Safety timeout, after which a connection is no longer expected to finish dialing. pub(crate) sweep_timeout: Duration, - /// Health check configuration. - pub(crate) health: HealthConfig, } impl OutgoingConfig { @@ -682,41 +663,17 @@ where }) } - /// Records a pong being received. - pub(super) fn record_pong(&mut self, peer_id: NodeId, pong: TaggedTimestamp) -> bool { - let addr = if let Some(addr) = self.routes.get(&peer_id) { - *addr - } else { - debug!(%peer_id, nonce=%pong.nonce(), "ignoring pong received from peer without route"); - return false; - }; - - if let Some(outgoing) = self.outgoing.get_mut(&addr) { - if let OutgoingState::Connected { ref mut health, .. } = outgoing.state { - health.record_pong(&self.config.health, pong) - } else { - debug!(%peer_id, nonce=%pong.nonce(), "ignoring pong received from peer that is not in connected state"); - false - } - } else { - debug!(%peer_id, nonce=%pong.nonce(), "ignoring pong received from peer without route"); - false - } - } - /// Performs housekeeping like reconnection or unblocking peers. /// /// This function must periodically be called. A good interval is every second. pub(super) fn perform_housekeeping( &mut self, - rng: &mut R, + _rng: &mut R, now: Instant, ) -> Vec> { let mut to_forget = Vec::new(); let mut to_fail = Vec::new(); - let mut to_ping_timeout = Vec::new(); let mut to_reconnect = Vec::new(); - let mut to_ping = Vec::new(); for (&addr, outgoing) in self.outgoing.iter_mut() { // Note: `Span::in_scope` is no longer serviceable here due to borrow limitations. @@ -776,27 +733,8 @@ where to_fail.push((addr, failures_so_far + 1)); } } - OutgoingState::Connected { - peer_id, - ref mut health, - .. - } => { - // Check if we need to send a ping, or give up and disconnect. - let health_outcome = health.update_health(rng, &self.config.health, now); - - match health_outcome { - HealthCheckOutcome::DoNothing => { - // Nothing to do. - } - HealthCheckOutcome::SendPing(nonce) => { - trace!(%nonce, "sending ping"); - to_ping.push((peer_id, addr, nonce)); - } - HealthCheckOutcome::GiveUp => { - info!("disconnecting after ping retries were exhausted"); - to_ping_timeout.push(addr); - } - } + OutgoingState::Connected { .. } => { + // Nothing to do. } OutgoingState::Loopback => { // Entry is ignored. Not outputting any `trace` because this is log spam even at @@ -828,31 +766,6 @@ where let mut dial_requests = Vec::new(); - // Request disconnection from failed pings. - for addr in to_ping_timeout { - let span = make_span(addr, self.outgoing.get(&addr)); - - let (_, opt_handle) = span.clone().in_scope(|| { - self.change_outgoing_state( - addr, - OutgoingState::Connecting { - failures_so_far: 0, - since: now, - }, - ) - }); - - if let Some(handle) = opt_handle { - dial_requests.push(DialRequest::Disconnect { - handle, - span: span.clone(), - }); - } else { - error!("did not expect connection under ping timeout to not have a residual connection handle. this is a bug"); - } - dial_requests.push(DialRequest::Dial { addr, span }); - } - // Reconnect others. dial_requests.extend(to_reconnect.into_iter().map(|(addr, failures_so_far)| { let span = make_span(addr, self.outgoing.get(&addr)); @@ -870,16 +783,6 @@ where DialRequest::Dial { addr, span } })); - // Finally, schedule pings. - dial_requests.extend(to_ping.into_iter().map(|(peer_id, addr, nonce)| { - let span = make_span(addr, self.outgoing.get(&addr)); - DialRequest::SendPing { - peer_id, - nonce, - span, - } - })); - dial_requests } @@ -898,7 +801,7 @@ where addr, handle, node_id, - when + when: _ } => { info!("established outgoing connection"); @@ -917,7 +820,6 @@ where OutgoingState::Connected { peer_id: node_id, handle, - health: ConnectionHealth::new(when), }, ); None @@ -1029,10 +931,7 @@ mod tests { use super::{DialOutcome, DialRequest, NodeId, OutgoingConfig, OutgoingManager}; use crate::{ - components::network::{ - blocklist::BlocklistJustification, - health::{HealthConfig, TaggedTimestamp}, - }, + components::network::blocklist::BlocklistJustification, testing::{init_logging, test_clock::TestClock}, }; @@ -1052,7 +951,6 @@ mod tests { base_timeout: Duration::from_secs(1), unblock_after: Duration::from_secs(60), sweep_timeout: Duration::from_secs(45), - health: HealthConfig::test_config(), } } From d18aba7cbae891bcfa16d5ea86c1c0a144b9d69e Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 Oct 2023 07:17:35 +0200 Subject: [PATCH 731/735] Remove internal networking capabilities that were only used for ping/pong --- node/src/components/network.rs | 3 +- node/src/components/network/outgoing.rs | 283 +++--------------------- 2 files changed, 30 insertions(+), 256 deletions(-) diff --git a/node/src/components/network.rs b/node/src/components/network.rs index ce87be4a86..8ce0f32630 100644 --- a/node/src/components/network.rs +++ b/node/src/components/network.rs @@ -868,7 +868,6 @@ where addr: peer_addr, handle, node_id: peer_id, - when: now, }); let mut effects = self.process_dial_requests(request); @@ -1293,7 +1292,7 @@ where } Event::SweepOutgoing => { let now = Instant::now(); - let requests = self.outgoing_manager.perform_housekeeping(rng, now); + let requests = self.outgoing_manager.perform_housekeeping(now); let mut effects = self.process_dial_requests(requests); diff --git a/node/src/components/network/outgoing.rs b/node/src/components/network/outgoing.rs index 318f02c9e8..2c8be197d2 100644 --- a/node/src/components/network/outgoing.rs +++ b/node/src/components/network/outgoing.rs @@ -104,7 +104,6 @@ use std::{ use datasize::DataSize; use prometheus::IntGauge; -use rand::Rng; use tracing::{debug, error_span, field::Empty, info, trace, warn, Span}; use super::{blocklist::BlocklistJustification, display_error, NodeId}; @@ -200,8 +199,6 @@ pub enum DialOutcome { handle: H, /// The remote peer's authenticated node ID. node_id: NodeId, - /// The moment the connection was established. - when: Instant, }, /// The connection attempt failed. Failed { @@ -666,11 +663,7 @@ where /// Performs housekeeping like reconnection or unblocking peers. /// /// This function must periodically be called. A good interval is every second. - pub(super) fn perform_housekeeping( - &mut self, - _rng: &mut R, - now: Instant, - ) -> Vec> { + pub(super) fn perform_housekeeping(&mut self, now: Instant) -> Vec> { let mut to_forget = Vec::new(); let mut to_fail = Vec::new(); let mut to_reconnect = Vec::new(); @@ -801,7 +794,6 @@ where addr, handle, node_id, - when: _ } => { info!("established outgoing connection"); @@ -924,9 +916,7 @@ where mod tests { use std::{net::SocketAddr, time::Duration}; - use assert_matches::assert_matches; use datasize::DataSize; - use rand::Rng; use thiserror::Error; use super::{DialOutcome, DialRequest, NodeId, OutgoingConfig, OutgoingManager}; @@ -1021,25 +1011,14 @@ mod tests { assert_eq!(manager.metrics().out_state_waiting.get(), 1); // Performing housekeeping multiple times should not make a difference. - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // Advancing the clock will trigger a reconnection on the next housekeeping. clock.advance_time(2_000); - assert!(dials( - addr_a, - &manager.perform_housekeeping(&mut rng, clock.now()) - )); + assert!(dials(addr_a, &manager.perform_housekeeping(clock.now()))); assert_eq!(manager.metrics().out_state_connecting.get(), 1); assert_eq!(manager.metrics().out_state_waiting.get(), 0); @@ -1049,7 +1028,6 @@ mod tests { addr: addr_a, handle: 99, node_id: id_a, - when: clock.now(), },) .is_none()); assert_eq!(manager.metrics().out_state_connecting.get(), 0); @@ -1060,9 +1038,7 @@ mod tests { assert_eq!(manager.get_addr(id_a), Some(addr_a)); // Time passes, and our connection drops. Reconnecting should be immediate. - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); clock.advance_time(20_000); assert!(dials( addr_a, @@ -1076,16 +1052,13 @@ mod tests { assert!(manager.get_addr(id_a).is_none()); // Reconnection is already in progress, so we do not expect another request on housekeeping. - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); } #[test] fn connections_forgotten_after_too_many_tries() { init_logging(); - let mut rng = crate::new_rng(); let mut clock = TestClock::new(); let addr_a: SocketAddr = "1.2.3.4:1234".parse().unwrap(); @@ -1124,21 +1097,17 @@ mod tests { assert!(manager.learn_addr(addr_a, false, clock.now()).is_none()); assert!(manager.learn_addr(addr_b, false, clock.now()).is_none()); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); assert!(manager.learn_addr(addr_a, false, clock.now()).is_none()); assert!(manager.learn_addr(addr_b, false, clock.now()).is_none()); // After 1.999 seconds, reconnection should still be delayed. clock.advance_time(1_999); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // Adding 0.001 seconds finally is enough to reconnect. clock.advance_time(1); - let requests = manager.perform_housekeeping(&mut rng, clock.now()); + let requests = manager.perform_housekeeping(clock.now()); assert!(dials(addr_a, &requests)); assert!(dials(addr_b, &requests)); @@ -1146,9 +1115,7 @@ mod tests { // anything, as we are currently connecting. clock.advance_time(6_000); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // Fail the connection again, wait 3.999 seconds, expecting no reconnection. assert!(manager @@ -1167,13 +1134,11 @@ mod tests { .is_none()); clock.advance_time(3_999); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // Adding 0.001 seconds finally again pushes us over the threshold. clock.advance_time(1); - let requests = manager.perform_housekeeping(&mut rng, clock.now()); + let requests = manager.perform_housekeeping(clock.now()); assert!(dials(addr_a, &requests)); assert!(dials(addr_b, &requests)); @@ -1193,18 +1158,14 @@ mod tests { when: clock.now(), },) .is_none()); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // The last attempt should happen 8 seconds after the error, not the last attempt. clock.advance_time(7_999); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); clock.advance_time(1); - let requests = manager.perform_housekeeping(&mut rng, clock.now()); + let requests = manager.perform_housekeeping(clock.now()); assert!(dials(addr_a, &requests)); assert!(dials(addr_b, &requests)); @@ -1225,15 +1186,13 @@ mod tests { .is_none()); // Only the unforgettable address should be reconnecting. - let requests = manager.perform_housekeeping(&mut rng, clock.now()); + let requests = manager.perform_housekeeping(clock.now()); assert!(!dials(addr_a, &requests)); assert!(dials(addr_b, &requests)); // But not `addr_a`, even after a long wait. clock.advance_time(1_000_000_000); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); } #[test] @@ -1269,9 +1228,7 @@ mod tests { &manager.learn_addr(addr_b, true, clock.now()) )); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // Fifteen seconds later we succeed in connecting to `addr_b`. clock.advance_time(15_000); @@ -1280,15 +1237,12 @@ mod tests { addr: addr_b, handle: 101, node_id: id_b, - when: clock.now(), },) .is_none()); assert_eq!(manager.get_route(id_b), Some(&101)); // Invariant through housekeeping. - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); assert_eq!(manager.get_route(id_b), Some(&101)); @@ -1324,13 +1278,10 @@ mod tests { addr: addr_c, handle: 42, node_id: id_c, - when: clock.now(), },) )); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); assert!(manager.get_route(id_c).is_none()); @@ -1338,16 +1289,11 @@ mod tests { // unblocked due to the block timing out. clock.advance_time(30_000); - assert!(dials( - addr_a, - &manager.perform_housekeeping(&mut rng, clock.now()) - )); + assert!(dials(addr_a, &manager.perform_housekeeping(clock.now()))); // Fifteen seconds later, B and C are still blocked, but we redeem B early. clock.advance_time(15_000); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); assert!(dials(addr_b, &manager.redeem_addr(addr_b, clock.now()))); @@ -1357,7 +1303,6 @@ mod tests { addr: addr_b, handle: 77, node_id: id_b, - when: clock.now(), },) .is_none()); assert!(manager @@ -1365,7 +1310,6 @@ mod tests { addr: addr_a, handle: 66, node_id: id_a, - when: clock.now(), },) .is_none()); @@ -1377,7 +1321,6 @@ mod tests { fn loopback_handled_correctly() { init_logging(); - let mut rng = crate::new_rng(); let mut clock = TestClock::new(); let loopback_addr: SocketAddr = "1.2.3.4:1234".parse().unwrap(); @@ -1396,9 +1339,7 @@ mod tests { },) .is_none()); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // Learning loopbacks again should not trigger another connection assert!(manager @@ -1417,9 +1358,7 @@ mod tests { clock.advance_time(1_000_000_000); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); } #[test] @@ -1444,13 +1383,11 @@ mod tests { addr: addr_a, handle: 22, node_id: id_a, - when: clock.now(), }); manager.handle_dial_outcome(DialOutcome::Successful { addr: addr_b, handle: 33, node_id: id_b, - when: clock.now(), }); let mut peer_ids: Vec<_> = manager.connected_peers().collect(); @@ -1484,17 +1421,12 @@ mod tests { // We now let enough time pass to cause the connection to be considered failed aborted. // No effects are expected at this point. clock.advance_time(50_000); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); // The connection will now experience a regular failure. Since this is the first connection // failure, it should reconnect after 2 seconds. clock.advance_time(2_000); - assert!(dials( - addr_a, - &manager.perform_housekeeping(&mut rng, clock.now()) - )); + assert!(dials(addr_a, &manager.perform_housekeeping(clock.now()))); // We now simulate the second connection (`handle: 2`) succeeding first, after 1 second. clock.advance_time(1_000); @@ -1503,7 +1435,6 @@ mod tests { addr: addr_a, handle: 2, node_id: id_a, - when: clock.now(), }) .is_none()); @@ -1517,7 +1448,6 @@ mod tests { addr: addr_a, handle: 1, node_id: id_a, - when: clock.now(), }) .is_none()); @@ -1529,7 +1459,6 @@ mod tests { fn blocking_not_overridden_by_racing_failed_connections() { init_logging(); - let mut rng = crate::new_rng(); let mut clock = TestClock::new(); let addr_a: SocketAddr = "1.2.3.4:1234".parse().unwrap(); @@ -1566,161 +1495,7 @@ mod tests { clock.advance_time(60); assert!(manager.is_blocked(addr_a)); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); + assert!(manager.perform_housekeeping(clock.now()).is_empty()); assert!(manager.is_blocked(addr_a)); } - - #[test] - fn emits_and_accepts_pings() { - init_logging(); - - let mut rng = crate::new_rng(); - let mut clock = TestClock::new(); - - let addr: SocketAddr = "1.2.3.4:1234".parse().unwrap(); - let id = NodeId::random(&mut rng); - - // Setup a connection and put it into the connected state. - let mut manager = OutgoingManager::::new(test_config()); - - // Trigger a new connection via learning an address. - assert!(dials(addr, &manager.learn_addr(addr, false, clock.now()))); - - assert!(manager - .handle_dial_outcome(DialOutcome::Successful { - addr, - handle: 1, - node_id: id, - when: clock.now(), - }) - .is_none()); - - // Initial housekeeping should do nothing. - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); - - // Go through 50 pings, which should be happening every 5 seconds. - for _ in 0..50 { - clock.advance(Duration::from_secs(3)); - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); - clock.advance(Duration::from_secs(2)); - - let (_first_nonce, peer_id) = assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::SendPing { nonce, peer_id, .. }] => (nonce, peer_id) - ); - assert_eq!(peer_id, id); - - // After a second, nothing should have changed. - assert!(manager - .perform_housekeeping(&mut rng, clock.now()) - .is_empty()); - - clock.advance(Duration::from_secs(1)); - // Waiting another second (two in total) should trigger another ping. - clock.advance(Duration::from_secs(1)); - - let (second_nonce, peer_id) = assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::SendPing { nonce, peer_id, .. }] => (nonce, peer_id) - ); - - // Ensure the ID is correct. - assert_eq!(peer_id, id); - - // Pong arrives 1 second later. - clock.advance(Duration::from_secs(1)); - - // We now feed back the ping with the correct nonce. This should not result in a ban. - assert!(!manager.record_pong( - peer_id, - TaggedTimestamp::from_parts(clock.now(), second_nonce), - )); - - // This resets the "cycle", the next ping is due in 5 seconds. - } - - // Now we are going to miss 4 pings in a row and expect a disconnect. - clock.advance(Duration::from_secs(5)); - assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::SendPing { .. }] - ); - clock.advance(Duration::from_secs(2)); - assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::SendPing { .. }] - ); - clock.advance(Duration::from_secs(2)); - assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::SendPing { .. }] - ); - clock.advance(Duration::from_secs(2)); - assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::SendPing { .. }] - ); - - // This results in a disconnect, followed by a reconnect. - clock.advance(Duration::from_secs(2)); - let dial_addr = assert_matches!( - manager - .perform_housekeeping(&mut rng, clock.now()) - .as_slice(), - &[DialRequest::Disconnect { .. }, DialRequest::Dial { addr, .. }] => addr - ); - - assert_eq!(dial_addr, addr); - } - - #[test] - fn indicates_issue_when_excessive_pongs_are_encountered() { - let mut rng = crate::new_rng(); - let mut clock = TestClock::new(); - - let addr: SocketAddr = "1.2.3.4:1234".parse().unwrap(); - let id = NodeId::random(&mut rng); - - // Ensure we have one connected node. - let mut manager = OutgoingManager::::new(test_config()); - - assert!(dials(addr, &manager.learn_addr(addr, false, clock.now()))); - assert!(manager - .handle_dial_outcome(DialOutcome::Successful { - addr, - handle: 1, - node_id: id, - when: clock.now(), - }) - .is_none()); - - clock.advance(Duration::from_millis(50)); - - // We can now receive excessive pongs. - assert!(!manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(!manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - assert!(manager.record_pong(id, TaggedTimestamp::from_parts(clock.now(), rng.gen()))); - } } From 006a674af7bb9f023f971fee2927a39cebceeb49 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 10 Oct 2023 07:23:55 +0200 Subject: [PATCH 732/735] Shrink `Cargo.lock` modifications by updating `datasize` to correct version in node `Cargo.toml` --- Cargo.lock | 270 +++++++++++++++++++++--------------------------- node/Cargo.toml | 2 +- 2 files changed, 119 insertions(+), 153 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index a6dfc32021..dda49a049c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -71,9 +71,9 @@ dependencies = [ [[package]] name = "aho-corasick" -version = "1.0.1" +version = "1.0.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "67fc08ce920c31afb70f013dcce1bfc3a3195de6a228474e45e1f145b36f8d04" +checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41" dependencies = [ "memchr", ] @@ -153,9 +153,9 @@ dependencies = [ [[package]] name = "anyhow" -version = "1.0.71" +version = "1.0.70" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8" +checksum = "7de8ce5e0f9f8d88245311066a578d72b7af3e7088f32783804676302df237e4" [[package]] name = "aquamarine" @@ -165,7 +165,7 @@ checksum = "a941c39708478e8eea39243b5983f1c42d2717b3620ee91f4a52115fd02ac43f" dependencies = [ "itertools 0.9.0", "proc-macro-error", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -218,7 +218,7 @@ version = "0.1.68" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "b9ccdd8f2a161be9bd5c023df56f1b2a0bd1d83872ae53b71a84a12c9bf6e842" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -275,7 +275,7 @@ dependencies = [ "cc", "cfg-if 1.0.0", "libc", - "miniz_oxide 0.6.2", + "miniz_oxide", "object", "rustc-demangle", ] @@ -424,26 +424,26 @@ dependencies = [ [[package]] name = "bumpalo" -version = "3.12.1" +version = "3.12.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9b1ce199063694f33ffb7dd4e0ee620741495c32833cde5aa08f02a0bf96f0c8" +checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535" [[package]] name = "bytemuck" -version = "1.14.0" +version = "1.13.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6" +checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea" dependencies = [ "bytemuck_derive", ] [[package]] name = "bytemuck_derive" -version = "1.5.0" +version = "1.4.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "965ab7eb5f8f97d2a083c799f3a1b994fc397b2fe2da5d1da1626ce15a39f2b1" +checksum = "fdde5c9cd29ebd706ce1b35600920a33550e402fc998a2e53ad3b42c3c47a192" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -776,7 +776,7 @@ dependencies = [ "anyhow", "base16", "casper-types", - "clap 3.2.25", + "clap 3.2.23", "derive_more 0.99.17", "hex", "serde", @@ -836,13 +836,13 @@ dependencies = [ [[package]] name = "clap" -version = "3.2.25" +version = "3.2.23" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123" +checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5" dependencies = [ "atty", "bitflags 1.3.2", - "clap_derive 3.2.25", + "clap_derive 3.2.18", "clap_lex 0.2.4", "indexmap", "once_cell", @@ -878,13 +878,13 @@ dependencies = [ [[package]] name = "clap_derive" -version = "3.2.25" +version = "3.2.18" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ae6371b8bdc8b7d3959e9cf7b22d4435ef3e79e138688421ec654acf8c81b008" +checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65" dependencies = [ "heck 0.4.1", "proc-macro-error", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -896,7 +896,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3f9644cd56d6b87dbe899ef8b053e331c0637664e9e21a33dfcdc36093f5c5c4" dependencies = [ "heck 0.4.1", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -999,9 +999,9 @@ dependencies = [ [[package]] name = "cpufeatures" -version = "0.2.7" +version = "0.2.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3e4c1eaa2012c47becbbad2ab175484c2a84d1185b566fb2cc5b8707343dfe58" +checksum = "280a9f2d8b3a38871a3c8a46fb80db65e5e5ed97da80c4d08bf27fb63e35e181" dependencies = [ "libc", ] @@ -1312,17 +1312,11 @@ version = "0.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "83fdaf97f4804dcebfa5862639bc9ce4121e82140bec2a987ac5140294865b5b" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] -[[package]] -name = "data-encoding" -version = "2.4.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c2e66c9d817f1720209181c316d28635c050fa304f9c79e47a520882661b7308" - [[package]] name = "datasize" version = "0.2.15" @@ -1342,7 +1336,7 @@ version = "0.2.15" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "613e4ee15899913285b7612004bbd490abd605be7b11d35afada5902fb6b91d5" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -1372,7 +1366,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321" dependencies = [ "convert_case", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "rustc_version", "syn 1.0.109", @@ -1393,7 +1387,7 @@ version = "1.0.0-beta.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "df541e0e2a8069352be228ce4b85a1da6f59bfd325e56f57e4b241babbc3f832" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", "unicode-xid 0.2.4", @@ -1816,7 +1810,7 @@ version = "0.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1e94aa31f7c0dc764f57896dc615ddd76fc13b0d5dca7eb6cc5e018a5a09ec06" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -1951,12 +1945,12 @@ dependencies = [ [[package]] name = "flate2" -version = "1.0.26" +version = "1.0.25" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743" +checksum = "a8a2db397cb1c8772f31494cb8917e48cd1e64f0fa7efac59fbd741a0a8ce841" dependencies = [ "crc32fast", - "miniz_oxide 0.7.1", + "miniz_oxide", ] [[package]] @@ -2059,7 +2053,7 @@ version = "0.3.28" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -2859,7 +2853,7 @@ dependencies = [ "indexmap", "slab", "tokio", - "tokio-util 0.7.8", + "tokio-util 0.7.7", "tracing", ] @@ -3091,7 +3085,7 @@ dependencies = [ "httpdate", "itoa", "pin-project-lite", - "socket2 0.4.9", + "socket2", "tokio", "tower-service", "tracing", @@ -3314,9 +3308,9 @@ checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67" [[package]] name = "libc" -version = "0.2.149" +version = "0.2.147" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b" +checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3" [[package]] name = "libm" @@ -3332,9 +3326,9 @@ checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f" [[package]] name = "linux-raw-sys" -version = "0.3.6" +version = "0.3.8" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b64f40e5e03e0d54f03845c8197d0291253cdbedfb1cb46b13c2c117554a9f4c" +checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519" [[package]] name = "list-authorization-keys" @@ -3520,15 +3514,6 @@ dependencies = [ "adler", ] -[[package]] -name = "miniz_oxide" -version = "0.7.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7" -dependencies = [ - "adler", -] - [[package]] name = "mint-purse" version = "0.1.0" @@ -3558,21 +3543,17 @@ dependencies = [ ] [[package]] -name = "multer" -version = "2.1.0" +name = "multiparty" +version = "0.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "01acbdc23469fd8fe07ab135923371d5f5a422fbf9c522158677c8eb15bc51c2" +checksum = "ed1ec6589a6d4a1e0b33b4c0a3f6ee96dfba88ebdb3da51403fd7cf0a24a4b04" dependencies = [ "bytes", - "encoding_rs", - "futures-util", - "http", + "futures-core", "httparse", - "log", "memchr", - "mime", - "spin", - "version_check", + "pin-project-lite", + "try-lock", ] [[package]] @@ -3724,7 +3705,7 @@ version = "0.3.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "876a53fff98e03a936a674b29568b0e605f06b29372c2489ff4de23f1949743d" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -3840,7 +3821,7 @@ version = "0.1.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -3853,9 +3834,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf" [[package]] name = "openssl-src" -version = "111.25.3+1.1.1t" +version = "111.25.2+1.1.1t" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "924757a6a226bf60da5f7dd0311a34d2b52283dd82ddeb103208ddc66362f80c" +checksum = "320708a054ad9b3bf314688b5db87cf4d6683d64cfc835e2337924ae62bf4431" dependencies = [ "cc", ] @@ -3967,7 +3948,7 @@ dependencies = [ "libc", "redox_syscall 0.3.5", "smallvec", - "windows-targets 0.48.0", + "windows-targets 0.48.1", ] [[package]] @@ -4008,16 +3989,16 @@ version = "1.0.12" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "069bdb1e05adc7a8990dce9cc75370895fbe4e3d58b9b73bf1aee56359344a55" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] [[package]] name = "pin-project-lite" -version = "0.2.13" +version = "0.2.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58" +checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116" [[package]] name = "pin-utils" @@ -4114,7 +4095,7 @@ version = "0.28.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "30490e0852e58402b8fae0d39897b08a24f493023a4d6cf56b2e30f31ed57548" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "regex", "syn 1.0.109", @@ -4188,7 +4169,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c" dependencies = [ "proc-macro-error-attr", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", "version_check", @@ -4200,7 +4181,7 @@ version = "1.0.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "version_check", ] @@ -4216,9 +4197,9 @@ dependencies = [ [[package]] name = "proc-macro2" -version = "1.0.69" +version = "1.0.56" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "134c189feb4956b20f6f547d2cf727d4c0fe06722b20a0eec87ed445a97f92da" +checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435" dependencies = [ "unicode-ident", ] @@ -4271,7 +4252,7 @@ version = "1.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9fa06db3abc95f048e0afa371db5569b24912bb98a8e2e2e89c75c5b43bc2aa8" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -4370,7 +4351,7 @@ version = "1.0.26" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", ] [[package]] @@ -4512,13 +4493,13 @@ dependencies = [ [[package]] name = "regex" -version = "1.8.1" +version = "1.8.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "af83e617f331cc6ae2da5443c602dfa5af81e517212d9d611a5b3ba1777b5370" +checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f" dependencies = [ "aho-corasick", "memchr", - "regex-syntax 0.7.1", + "regex-syntax 0.7.2", ] [[package]] @@ -4538,9 +4519,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1" [[package]] name = "regex-syntax" -version = "0.7.1" +version = "0.7.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c" +checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78" [[package]] name = "regression-20210707" @@ -4680,9 +4661,9 @@ dependencies = [ [[package]] name = "reqwest" -version = "0.11.17" +version = "0.11.16" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "13293b639a097af28fc8a90f22add145a9c954e49d77da06263d58cf44d5fb91" +checksum = "27b71749df584b7f4cac2c426c127a7c785a5106cc98f7a8feb044115f0fa254" dependencies = [ "base64 0.21.0", "bytes", @@ -4707,7 +4688,7 @@ dependencies = [ "serde_urlencoded", "tokio", "tokio-native-tls", - "tokio-util 0.7.8", + "tokio-util 0.7.7", "tower-service", "url", "wasm-bindgen", @@ -4774,9 +4755,9 @@ dependencies = [ [[package]] name = "rustix" -version = "0.37.18" +version = "0.37.20" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8bbfc1d1c7c40c01715f47d71444744a81669ca84e8b63e25a55e169b1f86433" +checksum = "b96e891d04aa506a6d1f318d2771bcb1c7dfda84e126660ace067c9b474bb2c0" dependencies = [ "bitflags 1.3.2", "errno", @@ -4856,7 +4837,7 @@ version = "0.8.5" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "791c2c848cff1abaeae34fef7e70da5f93171d9eea81ce0fe969a1df627a61a8" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "serde_derive_internals", "syn 1.0.109", @@ -4959,7 +4940,7 @@ version = "1.0.160" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "291a097c63d8497e00160b166a967a4a79c64f3facdd01cbd7502231688d77df" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -4970,7 +4951,7 @@ version = "0.25.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1dbab34ca63057a1f15280bdf3c39f2b1eb1b54c17e98360e511637aef7418c6" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -4993,7 +4974,7 @@ version = "0.1.12" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "bcec881020c684085e55a25f7fd888954d56609ef363479dc5a1305eb0d40cab" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -5141,22 +5122,6 @@ dependencies = [ "winapi", ] -[[package]] -name = "socket2" -version = "0.5.4" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4031e820eb552adee9295814c0ced9e5cf38ddf1e8b7d566d6de8e2538ea989e" -dependencies = [ - "libc", - "windows-sys 0.48.0", -] - -[[package]] -name = "spin" -version = "0.9.8" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67" - [[package]] name = "spki" version = "0.7.2" @@ -5226,7 +5191,7 @@ checksum = "dcb5ae327f9cc13b68763b5749770cb9e048a99bd9dfdfa58d0cf05d5f64afe0" dependencies = [ "heck 0.3.3", "proc-macro-error", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -5256,7 +5221,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59" dependencies = [ "heck 0.4.1", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "rustversion", "syn 1.0.109", @@ -5269,7 +5234,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ad8d03b598d3d0fff69bf533ee3ef19b8eeb342729596df84bcc7e1f96ec4059" dependencies = [ "heck 0.4.1", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "rustversion", "syn 2.0.15", @@ -5298,7 +5263,7 @@ version = "1.0.109" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "unicode-ident", ] @@ -5309,7 +5274,7 @@ version = "2.0.15" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "unicode-ident", ] @@ -5402,7 +5367,7 @@ version = "1.0.40" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -5473,17 +5438,18 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20" [[package]] name = "tokio" -version = "1.33.0" +version = "1.29.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4f38200e3ef7995e5ef13baec2f432a6da0aa9ac495b2c0e8f3b7eec2c92d653" +checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da" dependencies = [ + "autocfg", "backtrace", "bytes", "libc", "mio", "num_cpus", "pin-project-lite", - "socket2 0.5.4", + "socket2", "tokio-macros", "windows-sys 0.48.0", ] @@ -5494,7 +5460,7 @@ version = "2.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 2.0.15", ] @@ -5523,21 +5489,21 @@ dependencies = [ [[package]] name = "tokio-stream" -version = "0.1.14" +version = "0.1.12" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "397c988d37662c7dda6d2208364a706264bf3d6138b11d436cbac0ad38832842" +checksum = "8fb52b74f05dbf495a8fba459fdc331812b96aa086d9eb78101fa0d4569c3313" dependencies = [ "futures-core", "pin-project-lite", "tokio", - "tokio-util 0.7.8", + "tokio-util 0.7.7", ] [[package]] name = "tokio-tungstenite" -version = "0.20.1" +version = "0.18.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "212d5dcb2a1ce06d81107c3d0ffa3121fe974b73f068c8282cb1c32328113b6c" +checksum = "54319c93411147bced34cb5609a80e0a8e44c5999c93903a81cd866630ec0bfd" dependencies = [ "futures-util", "log", @@ -5562,9 +5528,9 @@ dependencies = [ [[package]] name = "tokio-util" -version = "0.7.8" +version = "0.7.7" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d" +checksum = "5427d89453009325de0d8f342c9490009f76e999cb7672d77e46267448f7e6b2" dependencies = [ "bytes", "futures-core", @@ -5592,7 +5558,7 @@ dependencies = [ "futures-core", "pin-project-lite", "tokio", - "tokio-util 0.7.8", + "tokio-util 0.7.7", "tower-layer", "tower-service", "tracing", @@ -5625,13 +5591,13 @@ dependencies = [ [[package]] name = "tracing-attributes" -version = "0.1.24" +version = "0.1.23" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0f57e3ca2a01450b1a921183a9c9cbfda207fd822cef4ccb00a65402cbba7a74" +checksum = "4017f8f45139870ca7e672686113917c71c7a6e02d4924eda67186083c03081a" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", - "syn 2.0.15", + "syn 1.0.109", ] [[package]] @@ -5834,13 +5800,13 @@ checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed" [[package]] name = "tungstenite" -version = "0.20.1" +version = "0.18.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9e3dac10fd62eaf6617d3a904ae222845979aec67c615d1c842b4002c7666fb9" +checksum = "30ee6ab729cd4cf0fd55218530c4522ed30b7b6081752839b68fcec8d0960788" dependencies = [ + "base64 0.13.1", "byteorder", "bytes", - "data-encoding", "http", "httparse", "log", @@ -6036,7 +6002,7 @@ version = "0.9.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "99d0801cec07737d88cb900e6419f6f68733867f90b3faaa837e84692e101bf0" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "pulldown-cmark", "regex", "semver", @@ -6114,7 +6080,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0a6e5bd22c71e77d60140b0bd5be56155a37e5bd14e24f5f87298040d0cc40d7" dependencies = [ "heck 0.3.3", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", ] @@ -6131,9 +6097,9 @@ dependencies = [ [[package]] name = "warp" -version = "0.3.6" +version = "0.3.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c1e92e22e03ff1230c03a1a8ee37d2f89cd489e2e541b7550d6afad96faed169" +checksum = "27e1a710288f0f91a98dd8a74f05b76a10768db245ce183edf64dc1afdc3016c" dependencies = [ "async-compression", "bytes", @@ -6145,7 +6111,7 @@ dependencies = [ "log", "mime", "mime_guess", - "multer", + "multiparty", "percent-encoding", "pin-project", "rustls-pemfile", @@ -6156,7 +6122,7 @@ dependencies = [ "tokio", "tokio-stream", "tokio-tungstenite", - "tokio-util 0.7.8", + "tokio-util 0.7.7", "tower-service", "tracing", ] @@ -6186,7 +6152,7 @@ dependencies = [ "bumpalo", "log", "once_cell", - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", "wasm-bindgen-shared", @@ -6220,7 +6186,7 @@ version = "0.2.84" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "2aff81306fcac3c7515ad4e177f521b5c9a15f2b08f4e32d823066102f35a5f6" dependencies = [ - "proc-macro2 1.0.69", + "proc-macro2 1.0.56", "quote 1.0.26", "syn 1.0.109", "wasm-bindgen-backend", @@ -6235,9 +6201,9 @@ checksum = "0046fef7e28c3804e5e38bfa31ea2a0f73905319b677e57ebe37e49358989b5d" [[package]] name = "wasm-encoder" -version = "0.26.0" +version = "0.25.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d05d0b6fcd0aeb98adf16e7975331b3c17222aa815148f5b976370ce589d80ef" +checksum = "4eff853c4f09eec94d76af527eddad4e9de13b11d6286a1ef7134bc30135a2b7" dependencies = [ "leb128", ] @@ -6296,9 +6262,9 @@ checksum = "b35c86d22e720a07d954ebbed772d01180501afe7d03d464f413bb5f8914a8d6" [[package]] name = "wast" -version = "57.0.0" +version = "56.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6eb0f5ed17ac4421193c7477da05892c2edafd67f9639e3c11a82086416662dc" +checksum = "6b54185c051d7bbe23757d50fe575880a2426a2f06d2e9f6a10fd9a4a42920c0" dependencies = [ "leb128", "memchr", @@ -6308,9 +6274,9 @@ dependencies = [ [[package]] name = "wat" -version = "1.0.63" +version = "1.0.62" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ab9ab0d87337c3be2bb6fc5cd331c4ba9fd6bcb4ee85048a0dd59ed9ecf92e53" +checksum = "56681922808216ab86d96bb750f70d500b5a7800e41564290fd46bb773581299" dependencies = [ "wast", ] @@ -6380,7 +6346,7 @@ version = "0.48.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f" dependencies = [ - "windows-targets 0.48.0", + "windows-targets 0.48.1", ] [[package]] @@ -6413,7 +6379,7 @@ version = "0.48.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9" dependencies = [ - "windows-targets 0.48.0", + "windows-targets 0.48.1", ] [[package]] @@ -6433,9 +6399,9 @@ dependencies = [ [[package]] name = "windows-targets" -version = "0.48.0" +version = "0.48.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5" +checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f" dependencies = [ "windows_aarch64_gnullvm 0.48.0", "windows_aarch64_msvc 0.48.0", diff --git a/node/Cargo.toml b/node/Cargo.toml index cb3129942a..4c044f6442 100644 --- a/node/Cargo.toml +++ b/node/Cargo.toml @@ -27,7 +27,7 @@ casper-execution-engine = { version = "5.0.0", path = "../execution_engine" } casper-hashing = { version = "2.0.0", path = "../hashing" } casper-json-rpc = { version = "1.1.0", path = "../json_rpc" } casper-types = { version = "3.0.0", path = "../types", features = ["datasize", "json-schema", "std"] } -datasize = { version = "0.2.11", features = ["detailed", "fake_clock-types", "futures-types", "smallvec-types"] } +datasize = { version = "0.2.15", features = ["detailed", "fake_clock-types", "futures-types", "smallvec-types"] } derive_more = "0.99.7" either = { version = "1", features = ["serde"] } enum-iterator = "0.6.0" From cecbd83f19e8c0110827cdbd41083c0316c4c273 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Mon, 16 Oct 2023 15:10:44 +0200 Subject: [PATCH 733/735] `Cargo.lock` updates --- Cargo.lock | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 0e09c497bc..081a69f774 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3563,17 +3563,21 @@ dependencies = [ ] [[package]] -name = "multiparty" -version = "0.1.0" +name = "multer" +version = "2.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ed1ec6589a6d4a1e0b33b4c0a3f6ee96dfba88ebdb3da51403fd7cf0a24a4b04" +checksum = "01acbdc23469fd8fe07ab135923371d5f5a422fbf9c522158677c8eb15bc51c2" dependencies = [ "bytes", - "futures-core", + "encoding_rs", + "futures-util", + "http", "httparse", + "log", "memchr", - "pin-project-lite", - "try-lock", + "mime", + "spin", + "version_check", ] [[package]] @@ -5142,6 +5146,12 @@ dependencies = [ "winapi", ] +[[package]] +name = "spin" +version = "0.9.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67" + [[package]] name = "spki" version = "0.7.2" @@ -6131,7 +6141,7 @@ dependencies = [ "log", "mime", "mime_guess", - "multiparty", + "multer", "percent-encoding", "pin-project", "rustls-pemfile", From 877949c8a7cac5dc1dcb08ddd2285155bfe91b6f Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 17 Oct 2023 15:54:20 +0200 Subject: [PATCH 734/735] Add hooks for modifying compilation process of `nctl` --- utils/nctl/sh/assets/compile.sh | 5 +++++ utils/nctl/sh/staging/build.sh | 6 ++++++ utils/nctl/sh/staging/set_remote.sh | 7 +++++++ 3 files changed, 18 insertions(+) diff --git a/utils/nctl/sh/assets/compile.sh b/utils/nctl/sh/assets/compile.sh index ed61e8f5b0..82077a3363 100644 --- a/utils/nctl/sh/assets/compile.sh +++ b/utils/nctl/sh/assets/compile.sh @@ -6,6 +6,11 @@ # NCTL - path to nctl home directory. ######################################## +if [ "$NCTL_SKIP_COMPILATION" = "true" ]; then + echo "skipping nctl-compile as requested"; + return; +fi + unset OPTIND #clean OPTIND envvar, otherwise getopts can break. COMPILE_MODE="release" #default compile mode to release. diff --git a/utils/nctl/sh/staging/build.sh b/utils/nctl/sh/staging/build.sh index 3ffd002985..e2492376d9 100644 --- a/utils/nctl/sh/staging/build.sh +++ b/utils/nctl/sh/staging/build.sh @@ -45,6 +45,12 @@ function _main() ####################################### function set_stage_binaries() { + # Allow for external overriding of binary staging step if necessary. + if [ -z $NCTL_OVERRIDE_STAGE_BINARIES ]; then + $NCTL_OVERRIDE_STAGE_BINARIES + return + fi; + local PATH_TO_NODE_SOURCE=${1} local PATH_TO_CLIENT_SOURCE=${2} diff --git a/utils/nctl/sh/staging/set_remote.sh b/utils/nctl/sh/staging/set_remote.sh index b78afdfa2f..be1f490e9e 100644 --- a/utils/nctl/sh/staging/set_remote.sh +++ b/utils/nctl/sh/staging/set_remote.sh @@ -53,6 +53,13 @@ function _main() curl -O "$_BASE_URL/v$PROTOCOL_VERSION/$REMOTE_FILE" > /dev/null 2>&1 fi done + + # Allow external hook for patching the downloaded binaries. + if [ ! -z "${NCTL_PATCH_REMOTE_CMD}" ]; then + $NCTL_PATCH_REMOTE_CMD ./casper-node + $NCTL_PATCH_REMOTE_CMD ./global-state-update-gen + fi + chmod +x ./casper-node chmod +x ./global-state-update-gen if [ "${#PROTOCOL_VERSION}" = '3' ]; then From 3a915d5750dfd8d2841a346d7936d0623a38a6f8 Mon Sep 17 00:00:00 2001 From: Marc Brinkmann Date: Tue, 17 Oct 2023 16:15:20 +0200 Subject: [PATCH 735/735] Fixed typo in `nctl overrides` --- utils/nctl/sh/staging/build.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/utils/nctl/sh/staging/build.sh b/utils/nctl/sh/staging/build.sh index e2492376d9..2fac9e4164 100644 --- a/utils/nctl/sh/staging/build.sh +++ b/utils/nctl/sh/staging/build.sh @@ -46,7 +46,7 @@ function _main() function set_stage_binaries() { # Allow for external overriding of binary staging step if necessary. - if [ -z $NCTL_OVERRIDE_STAGE_BINARIES ]; then + if [ ! -z $NCTL_OVERRIDE_STAGE_BINARIES ]; then $NCTL_OVERRIDE_STAGE_BINARIES return fi;