X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_mutex_timedlock.c;h=16241eeb2938636109d030e2c9bc25635e669e2a;hb=102f6a01e249ce4495f1119ae6d963a2a4a53ce5;hp=849febb7db1f04fe5ff02788199aa23006ab80d9;hpb=bc09d58c0432a4eca5f6a1e536679a527f971116;p=musl

diff --git a/src/thread/pthread_mutex_timedlock.c b/src/thread/pthread_mutex_timedlock.c
index 849febb7..16241eeb 100644
--- a/src/thread/pthread_mutex_timedlock.c
+++ b/src/thread/pthread_mutex_timedlock.c
@@ -1,6 +1,6 @@
 #include "pthread_impl.h"
 
-int pthread_mutex_timedlock(pthread_mutex_t *restrict m, const struct timespec *restrict at)
+int __pthread_mutex_timedlock(pthread_mutex_t *restrict m, const struct timespec *restrict at)
 {
 	if ((m->_m_type&15) == PTHREAD_MUTEX_NORMAL
 	    && !a_cas(&m->_m_lock, 0, EBUSY))
@@ -8,10 +8,17 @@ int pthread_mutex_timedlock(pthread_mutex_t *restrict m, const struct timespec *
 
 	int r, t, priv = (m->_m_type & 128) ^ 128;
 
+	r = pthread_mutex_trylock(m);
+	if (r != EBUSY) return r;
+	
+	int spins = 100;
+	while (spins-- && m->_m_lock && !m->_m_waiters) a_spin();
+
 	while ((r=pthread_mutex_trylock(m)) == EBUSY) {
-		if (!(r=m->_m_lock) || (r&0x40000000)) continue;
+		if (!(r=m->_m_lock) || ((r&0x40000000) && (m->_m_type&4)))
+			continue;
 		if ((m->_m_type&3) == PTHREAD_MUTEX_ERRORCHECK
-		 && (r&0x1fffffff) == __pthread_self()->tid)
+		 && (r&0x7fffffff) == __pthread_self()->tid)
 			return EDEADLK;
 
 		a_inc(&m->_m_waiters);
@@ -23,3 +30,5 @@ int pthread_mutex_timedlock(pthread_mutex_t *restrict m, const struct timespec *
 	}
 	return r;
 }
+
+weak_alias(__pthread_mutex_timedlock, pthread_mutex_timedlock);