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When forcing the outgoing address of a connection, till now we used to allocate this outgoing connection and set the address into it, then set SF_ADDR_SET. With connection reuse this causes a whole lot of issues and difficulties in the code. Thanks to the previous changes, it is now possible to store the target address into the stream instead, and copy the address from the stream to the connection when initializing the connection. assign_server_address() does this and as a result SF_ADDR_SET now reflects the presence of the target address in the stream, not in the connection. The http_proxy mode, the peers and the master's CLI now use the same mechanism. For now the existing connection code was not removed to limit the amount of tricky changes, but the allocated connection is not used anymore. This change also revealed a latent issue that we've been having around option http_proxy : the address was set in the connection but neither the SF_ADDR_SET nor the SF_ASSIGNED flags were set. It looks like the connection could establish only due to the fact that it existed with a non-null destination address.
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)