#include "pthread_impl.h" | |
int pthread_rwlock_timedwrlock(pthread_rwlock_t *rw, const struct timespec *at) | |
{ | |
int r, t; | |
while ((r=pthread_rwlock_trywrlock(rw))==EBUSY) { | |
if (!(r=rw->_rw_lock)) continue; | |
t = r | 0x80000000; | |
a_inc(&rw->_rw_waiters); | |
a_cas(&rw->_rw_lock, r, t); | |
r = __timedwait(&rw->_rw_lock, t, CLOCK_REALTIME, at, 0, 0, 0); | |
a_dec(&rw->_rw_waiters); | |
if (r && r != EINTR) return r; | |
} | |
return r; | |
} |