Function cv_mutex_waiter_with_pred

test/bthread_cond_unittest.cpp:183–189

}

void* cv_mutex_waiter_with_pred(void* void_arg) {
    WrapperArg* a = (WrapperArg*)void_arg;
    std::unique_lock<bthread::Mutex> lck(a->mutex);
    a->cond.wait(lck, [&] { return a->ready; });
    WrapperArg::wake_time.fetch_add(1);
    return NULL;
}

#define COND_IN_PTHREAD