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qc_snd_buf() is a wrapper around emission syscalls. Given QUIC configuration, a different variant is used. When using connection socket, send() is the only used. For listener sockets, sendmsg() and sendto() are possible. The first one is used only if local address has been retrieved prior. This allows to fix it on sending to guarantee the source address selection. Finally, sendto() is used for systems which do not support local address retrieval. All of these variants render the code too complex. As such, this patch simplifies this by removing sendto() alternative. Now, sendmsg() is always used for listener sockets. Source address is then specified only if supported by the system. This patch should not exhibit functional behavior changes. It will be useful when implementing GSO as the code is now simpler.
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)