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queue:pop_wait() was broken during late refactor prior to merge. (Due to small modifications to ensure that pop() returns nil on empty queue instead of nothing) Because of this, pop_wait() currently behaves exactly as pop(), resulting in 100% active CPU when used in a while loop. Indeed, _hlua_queue_pop() should explicitly return 0 when the queue is empty since pop_wait logic relies on this and the pushnil should be handled directly in queue:pop() function instead. Adding some comments as well to document this.
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)