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don't use pthread_once when there is no danger in race

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This commit is contained in:
Rich Felker 2011-04-17 12:15:55 -04:00
commit 02eff258c6
1 changed files with 5 additions and 2 deletions
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7
src/thread/cancel_impl.c
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@ -71,8 +71,11 @@ static void init_cancellation()
int pthread_cancel(pthread_t t) int pthread_cancel(pthread_t t)
{ {
static pthread_once_t once; static int init;
pthread_once(&once, init_cancellation); if (!init) {
init_cancellation();
init = 1;
}
a_store(&t->cancel, 1); a_store(&t->cancel, 1);
return pthread_kill(t, SIGCANCEL); return pthread_kill(t, SIGCANCEL);
} }