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