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HAProxy - Load balancer
When threads are disabled, HA_ATOMIC_CAS() becomes a simple compound expression. However this expression presents a problem, which is that its arguments are evaluated multiple times, once for the comparison and once again for the assignement. This presents a risk of performing some side-effect operations twice in the non-threaded case (e.g. in case of auto-increment or function return). The macro was rewritten using local copies for arguments like the other macros do. Fortunately a complete inspection of the code indicates that this case currently never happens. It was however responsible for the strict-aliasing warning emitted when building fd.c without threads but with 64-bit CAS. This may be backported as far as 1.8 though it will not fix any existing bug and is more of a long-term safety measure in case a future fix would depend on this behavior. |
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| doc | ||
| ebtree | ||
| examples | ||
| include | ||
| reg-tests | ||
| scripts | ||
| src | ||
| tests | ||
| .cirrus.yml | ||
| .gitignore | ||
| .travis.yml | ||
| BRANCHES | ||
| CHANGELOG | ||
| CONTRIBUTING | ||
| INSTALL | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| ROADMAP | ||
| SUBVERS | ||
| VERDATE | ||
| VERSION | ||
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)