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a57ab0fabe
Sometimes it may be necessary to send an empty STREAM frame to signal clean stream closure with FIN bit set. Prior to this change, a Tx buffer was allocated unconditionnally even if no data is transferred. Most of the times, allocation was not performed due to an older buffer reused. But if data were already acknowledge, a new buffer is allocated. No memory leak occurs as the buffer is properly released when the empty frame acknowledge is received. But this allocation is unnecessary and it consumes a connexion Tx buffer for nothing. Improve this by skipping buffer allocation if no data to transfer. qcs_build_stream_frm() is now able to deal with a NULL out argument. This should be backported up to 2.6.
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)