sys/kern/sys_procdesc.c

144 	struct procdesc *pd;
155 	pd = fp->f_data;
157 	if (pd->pd_proc != NULL) {
158 		*p = pd->pd_proc;
175 	struct procdesc *pd;
180 	pd = fp_procdesc->f_data;
181 	return (pd->pd_pid);
233 	struct procdesc *pd;
235 	pd = uma_zalloc(procdesc_zone, M_WAITOK | M_ZERO);
236 	pd->pd_proc = p;
237 	pd->pd_pid = p->p_pid;
238 	p->p_procdesc = pd;
239 	pd->pd_flags = 0;
241 		pd->pd_flags |= PDF_DAEMON;
242 	PROCDESC_LOCK_INIT(pd);
248 	refcount_init(&pd->pd_refcount, 2);
262 procdesc_free(struct procdesc *pd)
271 	if (refcount_release(&pd->pd_refcount)) {
272 		KASSERT(pd->pd_proc == NULL,
274 		KASSERT((pd->pd_flags & PDF_CLOSED),
277 		PROCDESC_LOCK_DESTROY(pd);
278 		uma_zfree(procdesc_zone, pd);
290 	struct procdesc *pd;
296 	pd = p->p_procdesc;
298 	PROCDESC_LOCK(pd);
299 	KASSERT((pd->pd_flags & PDF_CLOSED) == 0 || p->p_pptr == initproc,
302 	pd->pd_flags |= PDF_EXITED;
310 	if (pd->pd_flags & PDF_CLOSED) {
311 		PROCDESC_UNLOCK(pd);
312 		pd->pd_proc = NULL;
314 		procdesc_free(pd);
317 	if (pd->pd_flags & PDF_SELECTED) {
318 		pd->pd_flags &= ~PDF_SELECTED;
319 		selwakeup(&pd->pd_selinfo);
321 	PROCDESC_UNLOCK(pd);
332 	struct procdesc *pd;
337 	pd = p->p_procdesc;
338 	pd->pd_proc = NULL;
340 	procdesc_free(pd);
351 	struct procdesc *pd;
356 	pd = fp->f_data;
361 	PROCDESC_LOCK(pd);
362 	pd->pd_flags |= PDF_CLOSED;
363 	PROCDESC_UNLOCK(pd);
364 	p = pd->pd_proc;
390 		pd->pd_proc = NULL;
392 		procdesc_free(pd);
400 		if ((pd->pd_flags & PDF_DAEMON) == 0)
409 	procdesc_free(pd);
449 	struct procdesc *pd;
453 	pd = fp->f_data;
454 	PROCDESC_LOCK(pd);
455 	if (pd->pd_flags & PDF_EXITED)
458 		selrecord(td, &pd->pd_selinfo);
459 		pd->pd_flags |= PDF_SELECTED;
461 	PROCDESC_UNLOCK(pd);
476 	struct procdesc *pd;
485 	pd = fp->f_data;
487 	if (pd->pd_proc != NULL) {
488 		PROC_LOCK(pd->pd_proc);
491 		pstart = pd->pd_proc->p_stats->p_start;
497 		if (pd->pd_proc->p_state != PRS_ZOMBIE)
501 		sb->st_uid = pd->pd_proc->p_ucred->cr_ruid;
502 		sb->st_gid = pd->pd_proc->p_ucred->cr_rgid;
503 		PROC_UNLOCK(pd->pd_proc);