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Big diet for struct ast_channel

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4399 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2004-12-07 20:38:43 +00:00
parent 53f5a568fb
commit c46e21252c
12 changed files with 84 additions and 116 deletions
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33
pbx.c
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@@ -460,29 +460,9 @@ int pbx_exec(struct ast_channel *c, /* Channel */
char *saved_c_appl;
char *saved_c_data;
int stack = c->stack;
int (*execute)(struct ast_channel *chan, void *data) = app->execute;
if (newstack && stack > AST_CHANNEL_MAX_STACK - 2) {
/* Don't allow us to go over the max number of stacks we
permit saving. */
ast_log(LOG_WARNING, "Stack overflow, cannot create another stack\n");
return -1;
}
if (newstack && (res = setjmp(c->jmp[++c->stack]))) {
/* Okay, here's where it gets weird. If newstack is non-zero,
then we increase the stack increment, but setjmp is not going
to return until longjmp is called -- when the application
exec'd is finished running. */
if (res == 1)
res = 0;
if (c->stack != stack + 1)
ast_log(LOG_WARNING, "Stack returned to an unexpected place!\n");
else if (c->app[c->stack])
ast_log(LOG_WARNING, "Application may have forgotten to free its memory\n");
c->stack = stack;
return res;
} else {
if (newstack) {
if (c->cdr)
ast_cdr_setapp(c->cdr, app->name, data);
@@ -496,13 +476,10 @@ int pbx_exec(struct ast_channel *c, /* Channel */
/* restore channel values */
c->appl= saved_c_appl;
c->data= saved_c_data;
/* Any application that returns, we longjmp back, just in case. */
if (c->stack != stack + 1)
ast_log(LOG_WARNING, "Stack is not at expected value\n");
longjmp(c->jmp[stack+1], res);
/* Never returns */
}
return res;
} else
ast_log(LOG_WARNING, "You really didn't want to call this function with newstack set to 0\n");
return -1;
}