asterisk/pbx
Mark Michelson ee21eee7e0 Cache string values of formats on ast_format_cap() to save processing.
Channel snapshots have string representations of the channel's native formats.
Prior to this change, the format strings were re-created on ever channel snapshot
creation. Since channel native formats rarely change, this was very wasteful.
Now, string representations of formats may optionally be stored on the ast_format_cap
for cases where string representations may be requested frequently. When formats
are altered, the string cache is marked as invalid. When strings are requested, the
cache validity is checked. If the cache is valid, then the cached strings are copied.
If the cache is invalid, then the string cache is rebuilt and copied, and the cache
is marked as being valid again.

Review: https://reviewboard.asterisk.org/r/2879
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Merged revisions 400356 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@400363 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-10-03 14:58:16 +00:00
..
ael/ael-test Merged revisions 299449 via svnmerge from 2010-12-22 20:10:34 +00:00
Makefile Title update 2012-10-14 21:56:13 +00:00
dundi-parser.c Multiple revisions 369001-369002 2012-06-15 16:20:16 +00:00
dundi-parser.h Remove built-in AES code and use optional_api instead 2010-07-21 19:11:32 +00:00
pbx_ael.c Clean up and ensure proper usage of alloca() 2012-07-31 20:21:43 +00:00
pbx_config.c Fix misuses of asprintf throughout the code. 2012-08-21 21:01:11 +00:00
pbx_dundi.c Check result of ast_var_assign() calls for memory allocation failure. 2013-08-06 08:36:15 +00:00
pbx_loopback.c Check result of ast_var_assign() calls for memory allocation failure. 2013-08-06 08:36:15 +00:00
pbx_lua.c Clean up doxygen warnings 2012-08-30 14:23:28 +00:00
pbx_realtime.c Add multi-channel Stasis messages; refactor Dial AMI events to Stasis 2013-04-08 14:26:37 +00:00
pbx_spool.c Cache string values of formats on ast_format_cap() to save processing. 2013-10-03 14:58:16 +00:00