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qc_send() is implemented as a loop to repeatedly invoke qc_prep_pkts()/qc_send_ppkts(). This ensures that all data are emitted even if bigger that a single Tx buffer instance. This is useful if congestion window is empty but big enough for application data. Looping is interrupted if qc_prep_pkts() returns a negative error code, for example due to no space left in congestion window. It can also returns 0 if no input data to sent, which also interrupt the loop. To limit this last case, removed quic_enc_level from send_list each time everything already send via qc_prep_pkts(). Loop can then be interrupted as soon as send_list is empty, avoiding an extra superfluous call to qc_prep_pkts().
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)