dataq_waiter_t
sleeper = (dataq_waiter_t *)ll_peek(&dataq->waiters);
dataq_waiter_t *d = (dataq_waiter_t *)p;
dataq_waiter_t *sleeper;
sleeper = (dataq_waiter_t *)ll_peek(&dataq->waiters);
dataq_waiter_t *sleeper;
dataq_waiter_t wait;