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21072b9480
Commit 04f5fe87d3d introduced an rwlock in the pools to deal with the risk that pool_flush() dereferences an area being freed, and commit 899fb8abdcd turned it into a spinlock. The pools already contain a spinlock in case of locked pools, so let's use the same and simplify the code by removing ifdefs. At this point I'm really suspecting that if pool_flush() would instead rely on __pool_get_first() to pick entries from the pool, the concurrency problem could never happen since only one user would get a given entry at once, thus it could not be freed by another user. It's not certain this would be faster however because of the number of atomic ops to retrieve one entry compared to a locked batch.
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)