rsocket-java
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Ability to limit number of open requests at transport level
Lease frames allow a responder to control the total number of requests from the other end, but it is an optional feature, and there should also be a way to limit the total number of requests at the transport level.
For the implementation, subscribers created by RSocketResponder
will need a callback on DuplexConnection#sendFrame
to notify them when those frames have been sent. This will allow them to keep track of the number of open requests. It will also enable keeping track of and limiting the overall number of messages buffered per stream.