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Better error handling when mmap'ing

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Original commit message from CVS:
Better error handling when mmap'ing
This commit is contained in:
Wim Taymans 2002-06-15 16:12:20 +00:00
parent 2a01bdbe56
commit 32f702aa20
1 changed files with 8 additions and 3 deletions
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11
gst/cothreads.c
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@ -146,7 +146,7 @@ cothread_state*
cothread_create (cothread_context *ctx)
{
cothread_state *thread;
void *sp;
void *sp, *mmaped = 0;
guchar *stack_end;
gint slot = 0;
@ -178,11 +178,16 @@ cothread_create (cothread_context *ctx)
thread = (cothread_state *) (stack_end + ((slot - 1) * COTHREAD_STACKSIZE));
GST_DEBUG (0, "new stack at %p", thread);
if (mmap ((void *) thread, COTHREAD_STACKSIZE,
PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0) == MAP_FAILED) {
mmaped = mmap ((void *) thread, COTHREAD_STACKSIZE,
PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0);
if (mmaped == MAP_FAILED) {
perror ("mmap'ing cothread stack space");
return NULL;
}
if (mmaped != thread) {
g_warning ("could not mmap requested memory");
return NULL;
}
thread->ctx = ctx;
thread->threadnum = slot;