Differential D7302 Diff 18722 sys/kern/sys_procdesc.c

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sys/kern/sys_procdesc.c

Show First 20 Lines • Show All 517 Lines • ▼ Show 20 Lines	procdesc_kqfilter(struct file fp, struct knote kn)
}		}
}		}

static int		static int
procdesc_stat(struct file fp, struct stat sb, struct ucred *active_cred,		procdesc_stat(struct file fp, struct stat sb, struct ucred *active_cred,
struct thread *td)		struct thread *td)
{		{
struct procdesc *pd;		struct procdesc *pd;
struct timeval pstart;		struct timeval pstart, boottime;

/*		/*
* XXXRW: Perhaps we should cache some more information from the		* XXXRW: Perhaps we should cache some more information from the
* process so that we can return it reliably here even after it has		* process so that we can return it reliably here even after it has
* died. For example, caching its credential data.		* died. For example, caching its credential data.
*/		*/
bzero(sb, sizeof(*sb));		bzero(sb, sizeof(*sb));
pd = fp->f_data;		pd = fp->f_data;
sx_slock(&proctree_lock);		sx_slock(&proctree_lock);
if (pd->pd_proc != NULL) {		if (pd->pd_proc != NULL) {
PROC_LOCK(pd->pd_proc);		PROC_LOCK(pd->pd_proc);
AUDIT_ARG_PROCESS(pd->pd_proc);		AUDIT_ARG_PROCESS(pd->pd_proc);

/* Set birth and [acm] times to process start time. */		/* Set birth and [acm] times to process start time. */
pstart = pd->pd_proc->p_stats->p_start;		pstart = pd->pd_proc->p_stats->p_start;
		getboottime(&boottime);
timevaladd(&pstart, &boottime);		timevaladd(&pstart, &boottime);
TIMEVAL_TO_TIMESPEC(&pstart, &sb->st_birthtim);		TIMEVAL_TO_TIMESPEC(&pstart, &sb->st_birthtim);
sb->st_atim = sb->st_birthtim;		sb->st_atim = sb->st_birthtim;
sb->st_ctim = sb->st_birthtim;		sb->st_ctim = sb->st_birthtim;
sb->st_mtim = sb->st_birthtim;		sb->st_mtim = sb->st_birthtim;
if (pd->pd_proc->p_state != PRS_ZOMBIE)		if (pd->pd_proc->p_state != PRS_ZOMBIE)
sb->st_mode = S_IFREG \| S_IRWXU;		sb->st_mode = S_IFREG \| S_IRWXU;
else		else
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