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Restore normal pthread_cond_signal path to avoid some obscure races.

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This commit is contained in:
David Xu 2008-04-01 06:23:08 +00:00
parent e76ee87519
commit 18967c1918
1 changed files with 3 additions and 2 deletions
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5
lib/libthr/thread/thr_rwlock.c
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@ -479,7 +479,7 @@ _pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
return (EPERM);
}
#if 0
#if 1
if (state & RWLOCK_WRITE_WAITERS) {
_pthread_mutex_lock(&prwlock->lock);
_pthread_cond_signal(&prwlock->write_signal);
@ -489,7 +489,7 @@ _pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
_pthread_cond_broadcast(&prwlock->read_signal);
_pthread_mutex_unlock(&prwlock->lock);
}
#endif
#else
if (state & RWLOCK_WRITE_WAITERS) {
_pthread_mutex_lock(&prwlock->lock);
@ -498,5 +498,6 @@ _pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
_pthread_mutex_lock(&prwlock->lock);
_pthread_cond_broadcast_unlock(&prwlock->write_signal, &prwlock->lock, 1);
}
#endif
return (0);
}