Private area intersection #13
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Logical channels, encodings not done yet.
…efactor encoding/decoding, add handle reference counting, add message handling and intersection logical channel to WGPS messenger
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This PR makes the
WgpsMessengerclass capable of private area intersection.Added a new
PaiFinderclass. When this class is given a read authorisation (e.g. a read capability or read capability + subspace capability), it is able to transform these into fragments and submit these for private set intersection. This class is also able to request and reply with subspace capabilities when the need arises.Added a new
HandleStoreclass. This class is able to bind data to handles, and provides the necessary primitives to safely free those handles (using reference counting) when needed.Added a new
GuaranteedQueueclass. This can have bytes pushed onto it which are only emitted when the queue is given an amount of guarantees (in bytes) that the data can actually be accepted. It is also able to hear the pleas of foolish servers who guaranteed too many bytes, and always absolves them.Added streaming decoding for all control and intersection messages, powered by a new
GrowingBytesclass (in willow-utils).WgpsMessengerhas been updated to coordinate the new intersection channel, intersection handle store,PaiFinder, initial read authorisations, and incoming messages.Last but not least, test schemes have been unified so that all tests share the same (interoperable) parameters.