Function wrlocker

test/bthread_rwlock_unittest.cpp:37–46

}

void* wrlocker(void* arg) {
    auto rw = (bthread_rwlock_t*)arg;
    bthread_rwlock_wrlock(rw);
    LOG(INFO) << butil::string_printf("[%" PRIu64 "] I'm wrlocker, %d, %" PRId64 "ms\n",
                                      pthread_numeric_id(), ++c,
                                      butil::cpuwide_time_ms() - start_time);
    bthread_usleep(10000);
    bthread_rwlock_unlock(rw);
    return NULL;
}

TEST(RWLockTest, sanity) {
    bthread_rwlock_t rw;