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API Cleanup in preperation for 2.4.x, make sure all exported functions or variables contain an ap_ prefix.


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the HTTP output filter.

Submitted by: Rudeiger Pluem
Reviewed by: niq, covener



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mod_proxy based upon it.


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within the same datacenter.

mod_heartbeat generates multicast status messages with the current number of 
clients connected, but the formated can easily be extended to include other 
things.

mod_heartmonitor collects these messages into a static file, which then can be 
used for other modules to make load balancing decisions on.

This module was originally written at Joost by Sander Striker, Justin 
Erenkrantz, and myself.  We have been given permission by our employer to 
contribute this module.

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a reserved status code (OK/DECLINED/SUSPENDED). Prevents ap_die() from
seeing a 500 error when the http header filter has already taken
care of the proper error response



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input filter. Make sure that metadata buckets are written to
the buffer, not to the final brigade.


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buckets stay exactly APR_BUCKET_BUFF_SIZE long.


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filter stacks. Can collapse many small buckets into fewer larger
buckets, and prevents excessively small chunks being sent over
the wire.


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trunk: r704771 & r704883
2.2.x: r712514


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PR: 46018


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Note: I've attempted to work through the Windows and Netware build files,
but if those with such systems could repair any damage, that would be
appreciated.


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2.2.x authz logic and support existing configurations (including .htaccess
files), and replace <Satisfy*>, Reject, and AuthzMergeRules directives
with Match, <Match*>, and AuthzMerge directives.


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  destroying the pointer to the sending buffer in the ajp message if
  data is received from the backend before all data is sent to the
  backend.

PR: 45911


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Prevent crash when provider alias created to provider which is not
yet registered.
Migrate remaining functionality of mod_authn_default to mod_authn_core.


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constrain their use to conform with that of other access control
and authorization directives.


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mod_unixd.c is only os/unix/unixd.c, turned into a module.
(or more accurately, an ugly hack).  Work in progress, and the
old unixd will have to go once the module build stuff is in place.

This re-introduces some of the unixd stuff (set user, group and chroot)
to mpm_simple, and should work equally well with existing MPMs.
It also paves the way for alternative privilege management schemes,
which can be implemented in alternative modules: this´ll be
necessary to run mpm_simple on non-unix-family platforms, and
of interest for alternative Unix implementations.  By relegating
everything to a child_init hook, we can mix-and-match, though
weĺl need to add a regime that prevents just going right ahead
with nothing and running as root.

Round tuits permitting, we should be able to simplify unixd.h too,
and look towards eliminating it.



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  make it part of the public API.


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  flushed by using the main requests bytes_count field instead of the
  subrequest field.

* Do not reset conn->need_flush. This prevents SegFaults from not flushing
  buckets in the filter chain.

PR: 45792


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     Suggested By André Warnier <aw ice-sa.com> [Eric Covener]



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  in milliseconds and the parameter acquire in seconds.
  Add the new currently static function ap_timeout_parameter_parse that
  should become a general utility function once its API is hammered out.


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  responders.

PR: 46014
Submitted by: Dr Stephen Henson <steve openssl.org>
Reviewed by: rpluem


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  The call to apr_socket_timeout_set before apr_socket_connect already sets the
  socket to non-blocking mode because the timeout of the socket is -1 after creation. A further
  call to apr_socket_timeout_set (after the connect call does not do this, because the old
  and the new timeout are >=0). The further code expects the socket to be in non-blocking
  mode, otherwise we have regressions with ssl. This can be notified by running t/ssl/proxy
  on 2.2.x which runs much much slower with the patch applied. This does not happen
  on trunk because the socket is set back to non blocking by the core output filter
  (async write completion).


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  socket to non blocking mode.

Submitted by: Matt Stevenson <mavricknzwork yahoo.com>
Reviewed by: rpluem


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  they are. This is needed since it can happen that we are signaled by a
  worker thread that went idle but received a context switch before it could
  tell us. If it does signal us later once it is on CPU again there might be
  no idle worker left. See
  https://issues.apache.org/bugzilla/show_bug.cgi?id=45605#c4

PR: 45605
Submitted by: Denis Ustimenko <denusk gmail.com>
Reviewed by: rpluem


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