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Willy Tarreau 8dd348c90c MINOR: rawsock: always mark the FD not ready when we're certain it happens 
This partially reverts commit 1113116b4a ("MEDIUM: raw-sock: remove
obsolete calls to fd_{cant,cond,done}_{send,recv}") so that we can mark
the FD not ready as required since commit 19bc201c9f ("MEDIUM: connection:
remove the intermediary polling state from the connection"). Indeed, with
the removal of the latter we don't have any other reliable indication that
the FD is blocked, which explains why there are so many EAGAIN in traces.

It's worth noting that a short read or a short write are also reliable
indicators of exhausted buffers and are even documented as such in the
epoll man page in case of edge-triggered mode. That's why we also report
the FD as blocked in such a case.

With this change we completely got rid of EAGAIN in keep-alive tests, but
they were expectedly transferred to epoll_ctl:

  $ ./h1load -n 100000 -t 4 -c 1000 -T 20 -F 127.0.0.1:8001/?s=1k/t=20

  before:
   266331 epoll_ctl 1
   200000 sendto 1
   200000 recvfrom 1
   135757 recvfrom -1
     8626 epoll_wait 1

  after:
   394865 epoll_ctl 1
   200000 sendto 1
   200000 recvfrom 1
    10748 epoll_wait 1
     1999 recvfrom -1
2020-02-28 16:17:09 +01:00
.github BUILD: enable ERR=1 in github cygwin builds 2020-02-15 16:32:38 +01:00
contrib MINOR: contrib/prometheus-exporter: Add the last heathcheck duration metric 2020-02-28 10:49:09 +01:00
doc [RELEASE] Released version 2.2-dev3 2020-02-25 18:14:02 +01:00
ebtree BUILD: ebtree: improve architecture-specific alignment 2020-02-25 10:34:49 +01:00
examples CLEANUP: removed obsolete examples an move a few to better places 2019-06-15 21:25:06 +02:00
include MINOR: fd: merge the read and write error bits into RW error 2020-02-28 07:42:29 +01:00
reg-tests MINOR: http-ana: Match on the path if the monitor-uri starts by a / 2020-02-18 16:29:29 +01:00
scripts SCRIPTS: announce-release: use mutt -H instead of -i to include the draft 2020-02-15 15:24:28 +01:00
src MINOR: rawsock: always mark the FD not ready when we're certain it happens 2020-02-28 16:17:09 +01:00
tests TESTS: Add a stress-test for mt_lists. 2019-09-23 18:16:08 +02:00
.cirrus.yml BUILD: cirrus-ci: suppress OS version check when installing packages 2020-02-27 16:16:59 +01:00
.gitignore DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
.travis.yml BUILD: travis-ci: enable s390x builds 2020-02-25 11:58:43 +01:00
BRANCHES DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
CHANGELOG [RELEASE] Released version 2.2-dev3 2020-02-25 18:14:02 +01:00
CONTRIBUTING DOC: improve the wording in CONTRIBUTING about how to document a bug fix 2019-07-26 15:46:21 +02:00
INSTALL MINOR: build: add aix72-gcc build TARGET and power{8,9} CPUs 2020-02-12 15:37:13 +01:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS DOC: wurfl: added point of contact in MAINTAINERS file 2019-04-23 11:00:23 +02:00
Makefile BUILD: makefile: re-enable strict aliasing 2020-02-25 10:24:51 +01:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
ROADMAP DOC: update the outdated ROADMAP file 2019-06-15 21:59:54 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.2-dev3 2020-02-25 18:14:02 +01:00
VERSION [RELEASE] Released version 2.2-dev3 2020-02-25 18:14:02 +01:00

README 

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)