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Now the connect() step becomes an action. It's still implicit before any -c/-s but it allows the listener to close() before connect() happens, showing the polling status for this condition: $ dev/poll/poll -v -l clo -c pol #### BEGIN #### cmd #1 stp #1: do_clo(3): ret=0 cmd #2 stp #0: do_con(4): ret=-1 (Connection refused) cmd #2 stp #1: do_pol(4): ret=1 ev=0x14 (OUT HUP) #### END #### which differs from a case where the server closes the just accepted connection: $ dev/poll/poll -v -s clo -c pol #### BEGIN #### cmd #1 stp #0: do_con(4): ret=0 cmd #1 stp #0: do_acc(3): ret=5 cmd #1 stp #1: do_clo(5): ret=0 cmd #2 stp #1: do_pol(4): ret=1 ev=0x2005 (IN OUT RDHUP) #### END #### It's interesting to see OUT+HUP since HUP indicates that both directions were closed, hence nothing may be written now, thus OUT just wants the write handler to be notified.
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)