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rwlock trylock functions were wrongly returning EAGAIN instead of EBUSY

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This commit is contained in:
Rich Felker 2011-03-08 12:19:30 -05:00
parent 7e6be42a77
commit e5dd18319b
2 changed files with 3 additions and 3 deletions
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2
src/thread/pthread_rwlock_tryrdlock.c
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@ -7,7 +7,7 @@ int pthread_rwlock_tryrdlock(pthread_rwlock_t *rw)
a_dec(&rw->_rw_readers);
if (rw->_rw_waiters && !rw->_rw_readers)
__wake(&rw->_rw_readers, 1, 0);
return EAGAIN;
return EBUSY;
}
return 0;
}

4
src/thread/pthread_rwlock_trywrlock.c
View File

@ -3,10 +3,10 @@
int pthread_rwlock_trywrlock(pthread_rwlock_t *rw)
{
if (a_xchg(&rw->_rw_wrlock, 1))
return EAGAIN;
return EBUSY;
if (rw->_rw_readers) {
a_store(&rw->_rw_wrlock, 0);
return EAGAIN;
return EBUSY;
}
rw->_rw_owner = pthread_self()->tid;
return 0;