Differential D58292 Diff 182258 sys/kern/sys_procdesc.c

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sys/kern/sys_procdesc.c

Show First 20 Lines • Show All 329 Lines • ▼ Show 20 Lines	if (pd == NULL)
return;		return;

PROCDESC_LOCK(pd);		PROCDESC_LOCK(pd);
KNOTE_LOCKED(&pd->pd_selinfo.si_note, NOTE_PDSIGCHLD);		KNOTE_LOCKED(&pd->pd_selinfo.si_note, NOTE_PDSIGCHLD);
PROCDESC_UNLOCK(pd);		PROCDESC_UNLOCK(pd);
wakeup(&p->p_procdesc);		wakeup(&p->p_procdesc);
}		}

		void
		procdesc_fork(struct proc *p, pid_t child_pid)
		{
		struct procdesc *pd;

		PROC_LOCK(p);
		pd = p->p_procdesc;
		if (pd != NULL) {
		PROCDESC_LOCK(pd);
		pd->pd_last_child = child_pid;
		KNOTE_LOCKED(&pd->pd_selinfo.si_note, NOTE_FORK);
		PROCDESC_UNLOCK(pd);
		}
		PROC_UNLOCK(p);
		}

/*		/*
* When a process descriptor is reaped, perhaps as a result of close(), release		* When a process descriptor is reaped, perhaps as a result of close(), release
* the process's reference on the process descriptor.		* the process's reference on the process descriptor.
*/		*/
void		void
procdesc_reap(struct proc *p)		procdesc_reap(struct proc *p)
{		{
struct procdesc *pd;		struct procdesc *pd;
▲ Show 20 Lines • Show All 151 Lines • ▼ Show 20 Lines	if (kn->kn_sfflags & event)
kn->kn_fflags \|= event;		kn->kn_fflags \|= event;

/* Process is gone, so flag the event as finished. */		/* Process is gone, so flag the event as finished. */
if ((event & NOTE_EXIT) != 0) {		if ((event & NOTE_EXIT) != 0) {
kn->kn_flags \|= EV_EOF \| EV_ONESHOT;		kn->kn_flags \|= EV_EOF \| EV_ONESHOT;
if (kn->kn_fflags & NOTE_EXIT)		if (kn->kn_fflags & NOTE_EXIT)
kn->kn_data = pd->pd_xstat;		kn->kn_data = pd->pd_xstat;
if (kn->kn_fflags == 0)		if (kn->kn_fflags == 0)
kn->kn_flags \|= EV_DROP;		kn->kn_flags \|= EV_DROP;
		markjUnsubmitted Done Inline Actions Probably you want to `kn->kn_flags &= ~NOTE_FORK` here? markj: Probably you want to `kn->kn_flags &= ~NOTE_FORK` here?
		kibAuthorUnsubmitted Done Inline Actions Hm, no. I will explicitly mention that exit code is returned. kib: Hm, no. I will explicitly mention that exit code is returned.
		markjUnsubmitted Done Inline Actions (I meant `kn->kn_fflags` above of course.) markj: (I meant `kn->kn_fflags` above of course.)
		kibAuthorUnsubmitted Done Inline Actions I do want (need) to see NOTE_FORK in this situation. kib: I do want (need) to see NOTE_FORK in this situation.
return (1);		return (1);
}		}

		if ((kn->kn_fflags & NOTE_FORK) != 0)
		kn->kn_data = pd->pd_last_child;

return (kn->kn_fflags != 0);		return (kn->kn_fflags != 0);
}		}

static const struct filterops procdesc_kqops = {		static const struct filterops procdesc_kqops = {
.f_isfd = 1,		.f_isfd = 1,
.f_detach = procdesc_kqops_detach,		.f_detach = procdesc_kqops_detach,
.f_event = procdesc_kqops_event,		.f_event = procdesc_kqops_event,
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