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a61789a1d6
Some parts of the Lua are non-reentrant. We must be sure to carefully track these parts to not dump the lua stack when it is interrupted inside such parts. For now, we only identified the custom lua allocator. If the thread is interrupted during the memory allocation, we must not try to print the lua stack wich also allocate memory. Indeed, realloc() is not async-signal-safe. In this patch we introduce a thread-local counter. It is incremented before entering in a non-reentrant part and decremented when exiting. It is only performed in hlua_alloc() for now.
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)