Function rwlock_wrlock

src/bthread/rwlock.cpp:222–224

#undef SUBMIT_CSITE_IF_NEED

static inline int rwlock_wrlock(bthread_rwlock_t* rwlock) {
    return rwlock_wrlock_impl(rwlock, NULL);
}

static inline int rwlock_timedwrlock(bthread_rwlock_t* __restrict rwlock,
                                     const struct timespec* __restrict abstime) {