umtxq_signal
umtxq_signal(&key,1);
umtxq_signal(&key,1);
umtxq_signal(&key, n_wake);
umtxq_signal(&key, 1);
umtxq_signal(&key, 1);
umtxq_signal(&key, INT_MAX);
umtxq_signal(&key, 1);
umtxq_signal(&key, 1);
umtxq_signal(&uq->uq_key, INT_MAX);
nwake = umtxq_signal(&key, 1);
umtxq_signal(&key, INT_MAX);
umtxq_signal(&key, 1);
umtxq_signal(&key, 1);