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If the request channel buffer is full, H3 demuxing must be interrupted on the stream until some read is performed. This condition is reported if the HTX stream buffer qcs.rx.app_buf is full. In this case, qcs instance is marked with a new flag QC_SF_DEM_FULL. This flag cause the H3 demuxing to be interrupted. It is cleared when the HTX buffer is read by the conn-stream layer through rcv_buf operation. When the flag is cleared, the MUX tasklet is woken up. However, as MUX iocb does not treat Rx for the moment, this is useless. It must be fix to prevent possible freeze on POST transfers. In practice, for the moment the HTX buffer is never full as the current Rx code is limited by the quic-conn receive buffer size and the incomplete flow-control implementation. So for now this patch is not testable under the current conditions.
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)