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mpm_event: move lingering close "sucker" from the listener to worker(s).

This was the last non-constant time action performed by the listener thread.

It's now handled by the worker thread directly after entering lingering close,
which should directly address the cases when the socket is already closed
remotely at that time, hence avoid more scheduling (it may be the common case
for some scenarios).

And it's only if the above would need blocking (i.e. more data to suck) that
the socket is added to the pollset for the listener to re-schedule a worker
later when ready. If no worker is available at that time then the socket is
forcibly closed (similarly to what's done for keepalive connections in this
case).

Also, since process_lingering_close() is now called by a worker thread and
with almost no depth in the call stack, we can grow the size of the "suck"
buffer from 2K to 32K to potentially call recv() up to sixteen times less.


mpm_event: follow up to r1823047.

Update clogged counter on read_request retry too.


mpm_event: follow up to r1823047: simplify "clogging" logic (reentrance).


mpm_event: follow up to r1823047: complete state validation after processing.


mpm_event: follow up to r1823047: CHANGES entry.


mpm_event: follow up to r1823047 and r1824464.

MMN bump for CONN_STATE_NUM, plus don't consider CONN_STATE_LINGER_* as valid
states returned process_connection (never have been).


mpm_event: follow up to r1823047 and r1824862.

Revert (broken) functional change from r1824862.


Submitted by: ylavic
Reviewed by: ylavic, minfrin, jim


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10 years after r567503 , fix this properly.

The lock is created in post_config, so we can't copy it
around in a merge_server_config() callback.


Submitted by: covener
Reviewed by: covener, rpluem, jim


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Merged r1820464 from trunk.

elukey: mod_md update to current certifcate agreement URL.



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mpm_event: move lingering close "sucker" from the listener to worker(s).

This was the last non-constant time action performed by the listener thread.

It's now handled by the worker thread directly after entering lingering close,
which should directly address the cases when the socket is already closed
remotely at that time, hence avoid more scheduling (it may be the common case
for some scenarios).

And it's only if the above would need blocking (i.e. more data to suck) that
the socket is added to the pollset for the listener to re-schedule a worker
later when ready. If no worker is available at that time then the socket is
forcibly closed (similarly to what's done for keepalive connections in this
case).

Also, since process_lingering_close() is now called by a worker thread and
with almost no depth in the call stack, we can grow the size of the "suck"
buffer from 2K to 32K to potentially call recv() up to sixteen times less.


mpm_event: follow up to r1823047.

Update clogged counter on read_request retry too.


mpm_event: follow up to r1823047: simplify "clogging" logic (reentrance).


mpm_event: follow up to r1823047: complete state validation after processing.


mpm_event: follow up to r1823047: CHANGES entry.


mpm_event: follow up to r1823047 and r1824464.

MMN bump for CONN_STATE_NUM, plus don't consider CONN_STATE_LINGER_* as valid
states returned process_connection (never have been).


Submitted by: ylavic
Reviewed by: ylavic, minfrin, jim


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Merge r1821624, r1821625, r1821626, r1821627, r1821629, r1821632, r1821635, r1821639, r1821644, r1821647, r1821648, r1821649, r1821650, r1821651, r1821659, r1821660, r1822366, r1822367, r1824381 from trunk:

Shared fdqueue code between MPMs event and worker into mpm_fdqueue.

This first step moves the files server/mpm/event/fdqueue.[ch] to
server/mpm_fdqueue.[ch] (untouched for now, simple svn move).

Will follow up with the necessary changes to mpm_unix.* for common code.


mpm_fdqueue: follow up to r1821624.

And now it's mpm_fdqueue, with minimal #includes.


mpm_fdqueue: follow up to r1821624.

Opacify fdqueue types.


mpm_fdqueue: follow up to r1821624.

Style, no functional change.


mpm_fdqueue: follow up to r1821624.

Rename ap_queue_info_get_idlers() to ap_queue_info_num_idlers().


mpm_fdqueue: follow up to r1821624.

Clear recycled_pools_count in ap_free_idle_pools().


mpm_fdqueue: follow up to r1821624.

Prepare mpm_worker to use common fdqueue.


mpm_worker: follow up to r1821624.

Use common [mpm_]fdqueue.


mpm_fdqueue: follow up to r1821624.

The implemention wants APR_HAS_THREADS too.


mpm_fdqueue: follow up to r1821624.

The code is not part of the API.


mpm_fdqueue: follow up to r1821624.

Fix typo in comment.


mpm_fdqueue: follow up to r1821624.

Cosmetics, 80 cols, no functional change.


mpm_worker: follow up to r1821624.

Free idle pools while stopping.


mpm_fdqueue: follow up to r1821624.

Be explicit in the naming about what's push/pop-ed.


mpm_fdqueue: follow up to r1821624.

Either error matters, simplify code.


mpm_fdqueue: follow up to r1821624.

Make the allocation and zero-ing in ap_queue_init() => ap_queue_create().


mpm_fdqueue: follow up to r1821624.

Export ap_queue_*() fonctions, so that they are accessible from MPMs, but
don't provide "mpm_fdqueue.h" in the API (include/).


mpm_fdqueue: follow up to r1821624.

80 colums.


Follow up to r1821624: CHANGES entry.


Submitted by: ylavic
Reviewed by: ylavic, minfrin, jim


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IDE Add project to workspace/solution.
Add the missing pieces for command line build and connect the dots



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decide to do another T&R for 2.4.31 to correct some
process flaws/inconsistencies


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