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This commits the performance mods that give the priority processing engine in the pbx, a 25-30% speed boost. The two updates used, are, first, to merge the ast_exists_extension() and the ast_spawn_extension() where they are called sequentially in a loop in the code, into a slightly upgraded version of ast_spawn_extension(), with a few extra args; and, second, I modified the substitute_variables_helper_full, so it zeroes out the byte after the evaluated string instead of demanding you pre-zero the buffer; I also went thru the code and removed the code that zeroed this buffer before every call to the substitute_variables_helper_full. The first fix provides about a 9% speedup, and the second the rest. These figures come from the 'PIPS' benchmark I describe in blogs, conf. reports, etc.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@88166 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Steve Murphy
2007-11-01 22:26:51 +00:00
parent 842b1a34fe
commit 63f2f04cf4
25 changed files with 103 additions and 117 deletions
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4
pbx/pbx_loopback.c
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@@ -87,7 +87,6 @@ static char *loopback_helper(char *buf, int buflen, const char *exten, const cha
char tmp[80];
snprintf(tmp, sizeof(tmp), "%d", priority);
memset(buf, 0, buflen);
AST_LIST_HEAD_INIT_NOLOCK(&headp);
AST_LIST_INSERT_HEAD(&headp, ast_var_assign("EXTEN", exten), entries);
AST_LIST_INSERT_HEAD(&headp, ast_var_assign("CONTEXT", context), entries);
@@ -141,8 +140,9 @@ static int loopback_canmatch(struct ast_channel *chan, const char *context, cons
static int loopback_exec(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data)
{
int found;
LOOPBACK_COMMON;
res = ast_spawn_extension(chan, newcontext, newexten, newpriority, callerid);
res = ast_spawn_extension(chan, newcontext, newexten, newpriority, callerid, &found, 0);
/* XXX hmmm... res is overridden ? */
if (newpattern && !ast_extension_match(newpattern, exten))
res = -1;