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This patch is a cleanup of the recent change about the relation between a peer and the applet used to deal with I/O. Three flags was introduced to reflect the peer applet state as seen from outside (from the sync task in fact). Using flags instead of true states was in fact a bad idea. This work but it is confusing. Especially because it was mixed with LEARN and TEACH peer flags. So, now, to make it clearer, we are now using a dedicated state for this purpose. From the outside, the peer may be in one of the following state with respects of its applet: * the peer has no applet, it is stopped (PEER_APP_ST_STOPPED). * the peer applet was created with a validated connection from the protocol perspective. But the sync task must synchronized it with the peers section. It is in starting state (PEER_APP_ST_STARTING). * The starting starting was acknowledged by the sync task, the peer applet can start to process messages. It is in running state (PEER_APP_ST_RUNNING). * The last peer applet was released and the associated connection closed. But the sync task must synchronized it with the peers section. It is in stopping state (PEER_APP_ST_STOPPING). Functionnaly speaking, there is no true change here. But it should be easier to understand now. In addition to these changes, __process_peer_state() function was renamed sync_peer_app_state().
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)