ASSERT (q->consumer_evtfd > 0 && q->producer_evtfd > 0);
fd = is_prod ? q->producer_evtfd : q->consumer_evtfd;
rv = write (fd, &data, sizeof (data));
ASSERT (q->consumer_evtfd > 0 && q->producer_evtfd > 0);
fd = is_prod ? q->producer_evtfd : q->consumer_evtfd;
rv = write (fd, &data, sizeof (data));