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Note: Prior to the MPM-as-DSO churn, the following MPMs did not enable this logic:

  WinNT       APR supports no-oping the setsockopt() based on inheriting Nagle from the 
              listening socket on this platform, so the new APR call will be a no-op.
  simple      same as WinNT for at least some Unix-y platforms
  BeOS        shrug



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@758696 13f79535-47bb-0310-9956-ffa450edef68

  restore expected accept mutex mechanism and allocator limit support
  (the related AP_MPM_WANT_foo defines no longer exist)


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to allow filenames with globbing characters to be retrieved instead of
presented in a directory listing.

Submitted by: Dan Poirier <poirier pobox.com>
Reviewed by: covener



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@758626 13f79535-47bb-0310-9956-ffa450edef68

remove leader, perchild, and threadpool MPMs (other than non-English bits in common parts of the manual)


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a string can't be used as the declined value since the hook macro must compare 
retcodes from hooks with that declined value

(thanks, gcc/Joe)

accommodate in ap_show_mpm() since we don't want to return NULL to the caller of
this simple API


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after module loading if there is no built-in MPM

(we could just defer displaying the MPM info, but that would change the order of
output from what people/scripts expect)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@758335 13f79535-47bb-0310-9956-ffa450edef68

linked MPMs


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linked-in mod_unixd.c to handle that.

(The set of MPMs modified is the same set for which mod_unixd is enabled,
which is approximately equivalent to the set of Unix MPMs which anybody has
tried to maintain in recent memory.)


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loadable MPM can't use the rewrite-args hook

(note across the table: the hooker hook has no retcode feedback, so I didn't init
the data there)


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information across reconfigs, to allow these MPMs to work as DSOs


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  at least temporarily to allow buildconf against apr trunk.


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of module state across unload/load.

The existing idiom used by modules to associate userdata with pglobal
doesn't work in the earliest phases of module execution.

(This does expose pglobal as an implementation detail, but it would be great 
to unexpose it if at all possible (but modules already have access to pglobal
at almost all stages of execution anyway).)


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