776fd03509
These macros do not always kill the process, and sometimes it would be nice to know if some match or not, and how many times (especially for the CHECK_IF one). This commit adds a new section "dbg_cnt" made of structs that contain function name, file name, line number, check type, condition and match count. A newe macro __DBG_COUNT() adds one to the counter, and is placed inside _BUG_ON() and _BUG_ON_ONCE(). It's worth noting that the exact type of the check is not very precise but in practice we don't care, as most checks will cause the process to die anyway unless they're of type _BUG_ON_ONCE() (used by CHECK_IF by default). All of this is limited to !defined(USE_OBSOLETE_LINKER) because we're creating a section, thus we need a modern linker to be able to scan this section later. Doing so adds ~50kB to the executable due to the ~1266 BUG_ON() and others placed there. That's not huge in comparison to the visibility it can provide.
HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
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)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.