mp_ring_enqueue
return (mp_ring_enqueue(tlsp->txq->r, items, 1, 256));
error = mp_ring_enqueue(txq->r, items, 1, 1);
error = mp_ring_enqueue(txq->r, items, 1, 1);
error = mp_ring_enqueue(txq->r, items, 1, 1);
rc = mp_ring_enqueue(tlsp->txq->r, items, 1, 256);
error = mp_ring_enqueue(tlsp->txq->r, items, 1, 256);
rc = mp_ring_enqueue(txq->r, items, 1, 256);
int mp_ring_enqueue(struct mp_ring *, void **, int, int);