1cc851d9f2
The rationale here is that we don't absolutely need to update the stream offset live, there's already the rcvd_s counter to remind us we've received data. So we can continue to exploit the current check points for this. Now we know that rcvd_s indicates the amount of newly received bytes for the stream since last call to h2c_send_strm_wu() so we can update our stream offsets within that function. The wu_s counter is set to the difference between next_adv_ofs and last_adv_ofs, which are resynchronized once the frame is sent. If the stream suddenly disappears with unacked data (aborted upload), the presence of the last update in h2c->wu_s is sufficient to let the connection ack the data alone, and upon subsequent calls with new rcvd_s, the received counter will be used to ack, like before. We don't need to do more anyway since the goal is to let the client abort ASAP when it gets an RST. At this point, the stream knows its current rx offset, the computed max offset and the last advertised one.
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.