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The prometheus applet used to map to the stats context since it was not convenient to have one's own context, and to reuse the fields with its own values and enums. The obj1 pointer was used both for proxies and stick-tables; obj2 was used both for servers and listeners. This change makes use of the generic command context allocation so that the there's now a properly typed context for prometheus, defined in the code itself and independent on the stats or appctx ones. For clarity, the types are correctly set and there's one proxy, one table, one server and one listener. Some could be compacted using unions but that's not necessary since the context is reasonably compact. The stats' st_code field was used as the object state so the new field name is obj_state. An attempt was made to change the types to const for what us only visited but some calls pass through the stats code to retrieve info and that code uses non-const variables due to internal API limitations (read_freq_ctr() being used and requiring variable). That could change in the future, though.
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)