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mpm_{event,worker}: Mask signals for threads created by modules in child init.

PR 62009, so that they don't receive (implicitely) the ones meant for the MPM.

Inspired by: Armin Abfalterer <a.abfalterer gmail.com>


Follow up to r1821504: same comment in event than in worker.


Proposed by: ylavic
Reviewed by: ylavic, icing, covener


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Translated by: Nilgün Belma Bugüner <nilgun belgeler.gen.tr>
Reviewed by:  Orhan Berent <berent belgeler.gen.tr> 


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http://mail-archives.apache.org/mod_mbox/httpd-dev/201801.mbox/%3C4C412873-869D-4A0C-89E6-397706EFA1F7@apachelounge.com%3E



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Procedure that I've used:

1) Copy https://httpd.apache.org/docs/2.4/mod/directives.html
   to a text file.
2) Generate a csv with something like 
   cat /tmp/trunk_directives | sort | tr "\n" ","
3) Replace the content of CONFIG_KEYWORDS in prettify.js
   with the list generated in 2)
4) Run the command the MINIFY command to generate prettify.min.js

This change should bring out highlight up to speed with the
recent docs (like mod_md's).



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Merge of r1821095 from trunk.



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 Merged /httpd/httpd/branches/2.4.x-mod_md:r1816423-1821089
   Merged /httpd/httpd/trunk:r1804530-1804531,1804542,1804545,1804671,1804759,1804787,1804975,1805180,1805192,1805194,1805256,1805294,1805373,1806939,1807228,1807347,1807577,1807593,1807774,1807777,1808005,1808092,1808100,1808241-1808243,1808249,1808444,1809719,1809888,1810723,1811082,1811812,1812193,1812517-1812518,1812999,1813642,1814720,1814939,1815005,1815078,1815264,1815370,1815483,1816055,1816154,1816156,1816552,1816558,1816970,1817023,1817777,1817785,1818120,1818122,1818308,1818725,1818792,1818849

Merged mod_md from trunk via 2.4.x-mod_md branch.



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mod_proxy_html: skip documents < 4 bytes
PR 56286
Micha Lenk


follow up r1599012:
C99 fix


Fix some style


mod_proxy_html: follow up to r1599012.

To determine whether or not HTML data are lower than 4 bytes, use a retain
buffer rather than assuming that all should be contained in a single bucket
with the next one being EOS (if any).


mod_proxy_html: don't depend on NUL terminated bucket data.

ap_regexec() wants NUL terminated strings, so use ap_regexec_len() instead.


Submitted by: niq, takashi, jailletc36, ylavic, ylavic
Reviewed by: jim, ylavic, icing


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config: allow to specify flags when registering modules.

First one is AP_MODULE_FLAG_ALWAYS_MERGE.


mod_ssl: follow up to r1809302.

Make use of AP_MODULE_FLAG_ALWAYS_MERGE.


config: follow up to r1809302.
We need to check that the module itself is at the right version.


config: follow up to r1809302.

Provide a convenient function to get module flags, and remove useless
AP_MODULE_HAS_FLAGS checks in the core, core's version is at current MMN.


config: follow up to r1809302.
Associate ap_get_module_flags() to MMN bump.


On the trunk:

mod_ssl: make the new module flag used.


Submitted by: ylavic, icing
Reviewed by: icing, ylavic, covener


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core, mpm_event: Add ap_update_sb_handle() to avoid a small memory leak of
sizeof(ap_sb_handle_t) when re-entering event's process_socket().


Follow up to r1802618: CHANGES entry.


Proposed by: ylavic
Reviewed by: ylavic, icing, jim


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event: update worker score keepalive status.

Correct regressions introduced in r1137358 and r1740910.

The conn_rec context may be passed only when setting up the
initial connection, otherwise the request info is trashed.


Follow up to r1740910: CHANGES entry.


Submitted by: ylavic, wrowe, ylavic
Reviewed by: ylavic, icing, jim


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Join the previous proposal with another one (leak fix), not really
related but code conflicts...



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