ev->ev_pri = current_base->nactivequeues/2;
ev->ev_pri = base->nactivequeues/2;
event_base_set(struct event_base *base, struct event *ev){	/* Only innocent events may be assigned to a different base */	if (ev->ev_flags != EVLIST_INIT)		return (-1);	ev->ev_base = base;	ev->ev_pri = current_base->nactivequeues/2;	return (0);}