mirrors/arti.git/crates/tor-proto/src/congestion/fixed.rs, branch arti-v1.4.3

tor-proto: rename `allow_stream_sendme` to `uses_stream_sendme`

2025-04-23T18:38:25Z

We use this method to decide whether to allow receiving stream SENDMEs, and also whether we should send stream SENDMEs.

circ: Don't send stream level SENDME with CC

2025-04-23T18:36:28Z

This adds a new function to the CongestionControl object that returns true or false on if stream level SENDMEs are allowed by the underlying algorithm. Congestion control Vegas doesn't allow them as in it retires them and so we avoid sending them for that algorithm. Part of #1817 Signed-off-by: David Goulet

congestion: Remove duplicated comments

2025-01-16T14:16:01Z

No need to have these comments in the implementation of the Trait. Signed-off-by: David Goulet

proto: New CongestionControl object and fixed window algorithm

2025-01-16T14:16:01Z

Add the top level CongestionControl object that will allow the circuit reactor to use it in order to decide if a cell can be sent or not. In order to be used, it is configured with an algorithm that implements the CongestionControlAlgorithm trait. The Fixed Window algorithm is also added which essentially implements the SENDME logic as arti knows it today with a fixed window size. The SENDME code has been refactor in two different logical steps in order to accomodate the future Vegas algorithm for which the congestion window logic and SENDME validity is seperated. There is now a SENDME validator that takes care of tracking the tags (authenticated SENDMEs) and validating them upon reception. Then, if valid, the window management is passed down the congestion control algorithm, at this commit, FixedWindow object. Related #534 Signed-off-by: David Goulet