diff options
Diffstat (limited to 'src/thread/pthread_cond_broadcast.c')
| -rw-r--r-- | src/thread/pthread_cond_broadcast.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/thread/pthread_cond_broadcast.c b/src/thread/pthread_cond_broadcast.c index 0901daf6..18e778f3 100644 --- a/src/thread/pthread_cond_broadcast.c +++ b/src/thread/pthread_cond_broadcast.c @@ -27,13 +27,17 @@ int pthread_cond_broadcast(pthread_cond_t *c) /* Perform the futex requeue, waking one waiter unless we know * that the calling thread holds the mutex. */ + int wake_cnt = !(m->_m_type & 3) + || (m->_m_lock&INT_MAX)!=__pthread_self()->tid; + if (m->_m_type & 128) wake_cnt = INT_MAX; + __syscall(SYS_futex, &c->_c_seq, FUTEX_REQUEUE | 128, + wake_cnt, INT_MAX, &m->_m_lock) != -EINVAL || __syscall(SYS_futex, &c->_c_seq, FUTEX_REQUEUE, - !m->_m_type || (m->_m_lock&INT_MAX)!=__pthread_self()->tid, - INT_MAX, &m->_m_lock); + wake_cnt, INT_MAX, &m->_m_lock); out: a_store(&c->_c_lock, 0); - if (c->_c_lockwait) __wake(&c->_c_lock, 1, 0); + if (c->_c_lockwait) __wake(&c->_c_lock, 1, 1); return 0; } |