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Add assertion to make sure that we're in the thread containing the cothread we're trying to switch to.

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Original commit message from CVS:
Add assertion to make sure that we're in the thread containing the
cothread we're trying to switch to.
This commit is contained in:
David Schleef 2002-11-21 00:54:32 +00:00
parent e09a7f841a
commit 774edda66b
1 changed files with 8 additions and 4 deletions
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12
gst/cothreads.c
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@ -110,10 +110,7 @@ cothread_context_init (void)
/* FIXME this should be done in cothread_init() */
if (_cothread_ctx_key == NULL) {
_cothread_ctx_key = g_private_new (NULL);
if (_cothread_ctx_key == NULL) {
perror ("g_private_new");
return NULL;
}
g_assert (_cothread_ctx_key);
}
/* set this thread's context pointer */
@ -147,6 +144,7 @@ cothread_context_init (void)
ctx->cothreads[0]->priv = NULL;
ctx->cothreads[0]->flags = COTHREAD_STARTED;
ctx->cothreads[0]->sp = (void *) CURRENT_STACK_FRAME;
ctx->cothreads[0]->top_sp = ctx->cothreads[0]->sp;
ctx->cothreads[0]->pc = 0;
GST_INFO (GST_CAT_COTHREADS, "0th cothread is %p at sp:%p",
@ -619,6 +617,7 @@ void
cothread_switch (cothread_state * thread)
{
cothread_context *ctx;
cothread_context *current_ctx;
cothread_state *current;
int enter;
@ -627,6 +626,11 @@ cothread_switch (cothread_state * thread)
goto nothread;
#endif
ctx = thread->ctx;
/* paranoia check to make sure we're in the right thread */
current_ctx = g_private_get(_cothread_ctx_key);
g_assert (ctx == current_ctx);
#ifdef COTHREAD_PARANOID
if (ctx == NULL)
goto nocontext;