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After careful consideration (and a brief discussion with attilio@), change

Browse source 
the semantics of pthread_mutex_islocked_np() to return true if and only if
the mutex is held by the current thread.

Obviously, change the regression test to match.

MFC after:	2 weeks
This commit is contained in:
Dag-Erling Smørgrav 2008-02-04 12:35:23 +00:00
parent 3f0bfcccfd
commit fcd61d9141
2 changed files with 3 additions and 3 deletions
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2
lib/libthr/thread/thr_mutex.c
View file

@ -877,5 +877,5 @@ _pthread_mutex_islocked_np(pthread_mutex_t *mutex)
if (__predict_false(ret))
return (ret);
}
return ((*mutex)->m_qe.tqe_prev != NULL);
return ((*mutex)->m_lock.m_owner == TID(curthread));
}

4
tools/regression/pthread/mutex_islocked_np/mutex_islocked_np.c
View file

@ -37,8 +37,8 @@ thread(void *arg)
{
pthread_mutex_t *mtx = arg;
if (pthread_mutex_islocked_np(mtx) == 0) {
printf("pthread_mutex_islocked_np() returned zero\n"
if (pthread_mutex_islocked_np(mtx) != 0) {
printf("pthread_mutex_islocked_np() returned non-zero\n"
"for a mutex held by another thread\n");
exit(1);
}