From ec2e50d0d78fb19c4a0b6f3e1d394408860425b4 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Thu, 14 Apr 2011 14:39:57 -0400 Subject: cheap trick to further optimize locking normal mutexes --- src/thread/pthread_mutex_lock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/thread/pthread_mutex_lock.c') diff --git a/src/thread/pthread_mutex_lock.c b/src/thread/pthread_mutex_lock.c index 87b19752..99c15bd8 100644 --- a/src/thread/pthread_mutex_lock.c +++ b/src/thread/pthread_mutex_lock.c @@ -4,7 +4,7 @@ int pthread_mutex_lock(pthread_mutex_t *m) { int r; - if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_swap(&m->_m_lock, 1)) + if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_swap(&m->_m_lock, EBUSY)) return 0; while ((r=pthread_mutex_trylock(m)) == EBUSY) { -- cgit v1.2.1