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Right now when an inter-thread wakeup happens, we preliminary check if the thread was asleep, and if so we wake the poller up and remove its bit from the sleeping mask. That's not very clean since the sleeping mask cannot be entirely trusted since a thread that's about to wake up will already have its sleeping bit removed. This patch adds a new per-thread flag (TH_FL_NOTIFIED) to remember that a thread was notified to wake up. It's cleared before checking the task lists last, so that new wakeups can be considered again (since wake_thread() is only used to notify about task wakeups and FD polling changes). This way we do not need to modify a remote thread's sleeping mask anymore. As such wake_thread() now only tests and sets the TH_FL_NOTIFIED flag but doesn't clear sleeping anymore.
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)