diff options
Diffstat (limited to 'src/thread')
| -rw-r--r-- | src/thread/pthread_mutex_trylock.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/thread/pthread_mutex_trylock.c b/src/thread/pthread_mutex_trylock.c index 25b9e869..af421472 100644 --- a/src/thread/pthread_mutex_trylock.c +++ b/src/thread/pthread_mutex_trylock.c @@ -9,15 +9,13 @@ int pthread_mutex_trylock(pthread_mutex_t *m) tid = pthread_self()->tid; - if (m->_m_owner == tid) { - if (m->_m_type != PTHREAD_MUTEX_RECURSIVE) - return EBUSY; + if (m->_m_owner == tid && m->_m_type == PTHREAD_MUTEX_RECURSIVE) { if ((unsigned)m->_m_count >= INT_MAX) return EAGAIN; m->_m_count++; return 0; } - if (a_xchg(&m->_m_lock, 1)) return EBUSY; + if (m->_m_owner || a_xchg(&m->_m_lock, 1)) return EBUSY; m->_m_owner = tid; m->_m_count = 1; return 0; |