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    • Ryan Bloom's avatar
      Turn the worker MPM's queue into a LIFO. This may · 9da27961
      Ryan Bloom authored 
      improve cache-hit performance under some conditions.

Submitted by:   Aaron Bannert <aaron@clove.org>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91077 13f79535-47bb-0310-9956-ffa450edef68
      9da27961
    • Justin Erenkrantz's avatar
      Switch back to SIGUSR1 for graceful restarts on all platforms that · 99ec1c2a
      Justin Erenkrantz authored 
      support it.  This defines a symbol called AP_SIG_GRACEFUL in
ap_config_auto.h which will have the appropriate signal value.  All
direct references to SIGWINCH have been replaced with AP_SIG_GRACEFUL.

On Linux 2.0, use SIGWINCH instead since SIGUSR1 is used by glibc
2.0's user-space threading library to control threads.  All later
versions of Linux/glibc don't have this problem.  (Not to mention the
security holes in older Linux versions which make it unsuitable for
use as a web server.)  If your platform doesn't have SIGUSR1, use the
appropriate mojo in configure to define what your graceful restart
signal should be.

In theory, a configure switch could be added to allow the admin to
specify the appropriate signal that should be used.  This is left
as an exercise to the reader for now.

The docs need to be updated.  Since the signal is now configurable,
just saying SIGUSR1 for graceful restart isn't completely true.  Also,
the apachectl functionality needs to be moved into httpd - this is
what Win32 does and it makes us consistent across platforms.

Roy issued a veto against use of SIGWINCH by default, so this should
resolve that veto.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91076 13f79535-47bb-0310-9956-ffa450edef68
      99ec1c2a
    • Ryan Bloom's avatar
      Cleanup the worker MPM. We no longer re-use transaction · d554b00f
      Ryan Bloom authored 
      pools.  This incurs less overhead than shuffling the pools
around so that they can be re-used.  Remove one of the
queue's condition variables.  We just redefined the API to
state that you can't try to add more stuff than you allocated
segments for.

Submitted by:	  Aaron Bannert <aaron@clove.org>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91075 13f79535-47bb-0310-9956-ffa450edef68
      d554b00f