osfmk/kern/thread.c

1562 	funnel_t	*fnl;
1571 	if ((fnl = (funnel_t *)kalloc(sizeof(funnel_t))) != 0){
1572 		bzero((void *)fnl, sizeof(funnel_t));
1574 			kfree(fnl, sizeof(funnel_t));
1577 		fnl->fnl_mutex = m;
1578 		fnl->fnl_type = type;
1580 	return(fnl);
1585 	funnel_t * fnl)
1587 	lck_mtx_free(fnl->fnl_mutex, funnel_lck_grp);
1588 	if (fnl->fnl_oldmutex)
1589 		lck_mtx_free(fnl->fnl_oldmutex, funnel_lck_grp);
1590 	kfree(fnl, sizeof(funnel_t));
1595 	funnel_t * fnl)
1597 	lck_mtx_lock(fnl->fnl_mutex);
1598 	fnl->fnl_mtxholder = current_thread();
1603 	funnel_t * fnl)
1605 	lck_mtx_unlock(fnl->fnl_mutex);
1606 	fnl->fnl_mtxholder = NULL;
1607 	fnl->fnl_mtxrelease = current_thread();
1624         funnel_t *	fnl,
1641 											fnl, 1, 0, 0, 0);
1642 			funnel_lock(fnl);
1644 											fnl, 1, 0, 0, 0);
1646 			cur_thread->funnel_lock = fnl;
1648 			if(cur_thread->funnel_lock->fnl_mutex != fnl->fnl_mutex)
1652 								fnl, 1, 0, 0, 0);
1655 			funnel_unlock(fnl);
1662 		if (funneled && (fnl->fnl_mutex != cur_thread->funnel_lock->fnl_mutex)) {