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785b89f551
Some protocol support SO_REUSEPORT and others not. Some have such a limitation in the kernel, and others in haproxy itself (e.g. sock_unix cannot support multiple bindings since each one will unbind the previous one). Also it's really protocol-dependent and not just family-dependent because on Linux for some time it was supported for TCP and not UDP. Let's move the definition to the protocols instead. Now it's preset in tcp/udp/quic when SO_REUSEPORT is defined, and is otherwise left unset. The enabled() config condition test validates IPv4 (generally sufficient), and -dR / noreuseport all protocols at once.
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)