77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation; either version 2.1 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include <time.h>
|
|
|
|
#include "posix-timer.h"
|
|
|
|
|
|
/* Get current value of timer TIMERID and store it in VLAUE. */
|
|
int
|
|
timer_gettime (timerid, value)
|
|
timer_t timerid;
|
|
struct itimerspec *value;
|
|
{
|
|
struct timer_node *timer;
|
|
struct timespec now, expiry;
|
|
int retval = -1, armed = 0, valid;
|
|
clock_t clock = 0;
|
|
|
|
pthread_mutex_lock (&__timer_mutex);
|
|
|
|
timer = timer_id2ptr (timerid);
|
|
valid = timer_valid (timer);
|
|
|
|
if (valid) {
|
|
armed = timer->armed;
|
|
expiry = timer->expirytime;
|
|
clock = timer->clock;
|
|
value->it_interval = timer->value.it_interval;
|
|
}
|
|
|
|
pthread_mutex_unlock (&__timer_mutex);
|
|
|
|
if (valid)
|
|
{
|
|
if (armed)
|
|
{
|
|
clock_gettime (clock, &now);
|
|
if (timespec_compare (&now, &expiry) < 0)
|
|
timespec_sub (&value->it_value, &expiry, &now);
|
|
else
|
|
{
|
|
value->it_value.tv_sec = 0;
|
|
value->it_value.tv_nsec = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
value->it_value.tv_sec = 0;
|
|
value->it_value.tv_nsec = 0;
|
|
}
|
|
|
|
retval = 0;
|
|
}
|
|
else
|
|
__set_errno (EINVAL);
|
|
|
|
return retval;
|
|
}
|