bsd/kern/kern_fork.c

219  *		has its task, thread, and uthread lent to the child process,
226  *		operations on the task, thread, or uthread will result in
228  *		state, when a task, thread, and uthread are realized for the
242  *    uthread |  ^             bsd_info |  ^
260  *          |     uthread |  ^             bsd_info |  ^
333  *					uthread to return running in the child;
407 		 * child and the tash/thread/uthread from the parent in
685  *		with the task, thread, and uthread.
757  *		thread creation, a uthread), which is then associated with the
939  *		the net effect is to provide a uthread structure for the
1423 		uthread_zone = zinit(sizeof(struct uthread),
1424 					thread_max * sizeof(struct uthread),
1425 					THREAD_CHUNK * sizeof(struct uthread),
1443 	bzero(ut, sizeof(struct uthread));
1511  * This routine frees all the BSD context in uthread except the credential.
1512  * It does not free the uthread structure as well
1515 uthread_cleanup(task_t task, void *uthread, void * bsd_info)
1518 	uthread_t uth = (uthread_t)uthread;
1595 /* This routine releases the credential stored in uthread */
1597 uthread_cred_free(void *uthread)
1599 	uthread_t uth = (uthread_t)uthread;
1601 	/* and free the uthread itself */
1609 /* This routine frees the uthread structure held in thread structure */
1611 uthread_zone_free(void *uthread)
1613 	uthread_t uth = (uthread_t)uthread;
1620 	/* and free the uthread itself */
1621 	zfree(uthread_zone, uthread);