diff options
Diffstat (limited to 'src/thread/pthread_mutex_trylock.c')
| -rw-r--r-- | src/thread/pthread_mutex_trylock.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/thread/pthread_mutex_trylock.c b/src/thread/pthread_mutex_trylock.c index 6fc604fe..de57ff9e 100644 --- a/src/thread/pthread_mutex_trylock.c +++ b/src/thread/pthread_mutex_trylock.c @@ -9,14 +9,13 @@ int pthread_mutex_trylock(pthread_mutex_t *m) tid = pthread_self()->tid; - if (m->_m_owner == tid && m->_m_type == PTHREAD_MUTEX_RECURSIVE) { + if (m->_m_lock == tid && m->_m_type == PTHREAD_MUTEX_RECURSIVE) { if ((unsigned)m->_m_count >= INT_MAX) return EAGAIN; m->_m_count++; return 0; } - if (m->_m_owner || a_xchg(&m->_m_lock, 1)) return EBUSY; - m->_m_owner = tid; + if (m->_m_lock || a_cas(&m->_m_lock, 0, tid)) return EBUSY; m->_m_count = 1; return 0; } |