Arrange for backend LDAP connections to be returned 
to the pool by a fixup hook rather than staying locked
until the end of (a potentially slow) request.

Add a little more trace4 to the authnz_ldap side of LDAP connection obtain/release.




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end-of-request time, and only update it after a round-trip with the LDAP
server rather than every time we check back into the pool.



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The code that used this was commented out in r721594, then removed entirely in
r728497, and finally a commit was made intending to remove the last traces of
the code cache in r1200513, but this initialization lived on anyway.

* modules/lua/mod_lua.c
  (create_server_config): Remove unused empty hash and rwlock for hash.

* modules/lua/mod_lua.h
  (ap_lua_server_cfg): Remove unneeded hash and rwlock entries.


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Implement better error checking/reporting around notification of abrupt parent
process termination.

It is likely that something bad is happening here based on these
user reports:

https://www.apachelounge.com/viewtopic.php?p=27848
http://mail-archives.apache.org/mod_mbox/httpd-users/201406.mbox/%3CCAC%2BRZnuwLD%2BJnoy2TYO8oeAWt6bFLMa%3DEhfDf9hS3cuuGUHXAw%40mail.gmail.com%3E



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Fix build breakage on non-syslog.h platforms.


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Revert r1605369 (wstunnel refactoring)

per discassion on dev@httpd.a.o thread Message-ID:
<CALK=YjN9HfThP_k_rF9iJPcUhcQk9sNOaDPxZNG+HcJNWS4ZAQ@mail.gmail.com>


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  though it's kind of wrong


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  dropped the date reference here since it would no longer
  be accurate.


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  and adjust selection logic to prefer use of larger not smaller keys.
  (init_dh_params, free_dh_params, modssl_get_dh_params): Use array of
  structs to store and initialize DH parameters up to 8192-bit.



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Resume a client connection from SUSPENDED state to avoid the 
connection remain suspended.


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r1601943 and r1605307 made Event MPM return woken pollfd, so async 
wstunnel doesn't need its own apr_pollset_poll.


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Each apr_pollset_poll modified *out_pfd, so we need to copy it.


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socket is added to the timeout queue. Technically not needed because we hold
the lock on the timeout queue, but more consistent with other blocks that
leave the thread.


Submitted By: Edward Lu <Chaosed0 gmail com>
Committed By: covener



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now commented out, fixing a "-Wunused-function" warning


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optional) work in between.

Also saves declaration/usage of pointer 'ep' by reusing available 'te' instead,
and removes duplicated 'te' declaration in a local block.


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Provide documentation for -m option.


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Don't leak the timer event when it is cancelled.


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and indentation.


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PR56639

Always NULL c->sbh before putting a connection back in a pollset or queue.

We can't NULL c->sbh at the bottom of process_socket() after putting a socket back on 
the event_pollset or having it go into lingering close, because the listener or a worker
thread could A) continue on the connection or B) free and allocate the same conn_rec
pointer before we get to the bottom of process_socket().

Submitted By: Edward Lu
Committed By: covener



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woke and the socket callback was called.
PR 56642


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  temporary variable; no functional change.
  (free_dh_params): Add comment.

Submitted by: rpluem, jorton


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