Use ap_bin2hex instead of sprintf(..., "%02x". It gives the same output and is faster.

No real speedup should be achieved on production machine, because this is done
only for characters that need to be escaped. 
However, this will close PR 50919.

Submitted by: jailletc36
Reviewed/backported by: jim


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According to my testing, one special case of 'log_xlate_error', i.e. EES_INCOMPLETE_CHAR,
 is 13x (!!!) faster with the use 'ap_bin2hex' instead of apr_snprintf(..., "%02X" + srlen for each character.

Output is *not* exactly the same. It was uppercase, now it is lowercase.
It is just for logging, so I don't think it is an issue.
Should it be, a call to ap_strtoupper can be added.

So sad it is just for logging in case of error... no real speedup to be expected in real life .

Submitted by: jailletc36
Reviewed/backported by: jim


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According top my testing 'socache_mc_id2key' is 6x faster with the use 'ap_bin2hex' instead of
apr_snprintf(..., "%02X" for each character.
Output is *not* exactly the same. It was uppercase, now it is lowercase.

According to my understanding, this is not an issue.
Should it be, a call to ap_str_toupper should be added.

The speedup would be less, but still significant.
Submitted by: jailletc36
Reviewed/backported by: jim


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Fix error because of negative rate-limit
PR : 52964
Submitted by: Tianyin Xu <tixu cs ucsd edu>
Submitted by: jailletc36
Reviewed/backported by: jim


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mod_lbmethod_heartbeat, mod_heartmonitor: Respect DefaultRuntimeDir/
DEFAULT_REL_RUNTIMEDIR for the heartbeat storage file.

Submitted by: trawick
Reviewed/backported by: jim


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Add "mod_macro" as a standard module, compiled in with "most".

This module was created in 1998 and has been distributed independently
ever since. It is hereby donated to the Apache Software Foundation.

There are quite a few comments in the source code to explain how it works,
as well as extensive non regression tests.

Some utilities about array processing could be moved to "core.c".
However, I finally decided against for now so that it stays as an external
and independent module, and thus may be backported with minimal impact
on the source tree.

Details of the addition:

* modules/core/mod_macro.c: module source code
* modules/core/test: non regression tests
  modules/core/test/conf/: configuration files
  modules/core/test/ref/: expected results
* docs/manual/mod/mod_macro.xml: English documentation
* docs/manual/mod/mod_macro.xml.fr: French documentation


Submitted by: fabien
Reviewed/backported by: jim


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for now, mention that the TTL isn't tracking to the last I/O on the LDAP conn.




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(Backport r1451155)


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Add notes about compiling from Unix sources



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mod_include: Use new ap_expr for 'elif'. [PR 54548]


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