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/* Tests for POSIX timer implementation.
Copyright (C) 2000-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
static void
notify_func1 (union sigval sigval)
{
puts ("notify_func1");
}
static void
notify_func2 (union sigval sigval)
{
puts ("notify_func2");
}
static void
signal_func (int sig)
{
static const char text[] = "signal_func\n";
signal (sig, signal_func);
write (STDOUT_FILENO, text, sizeof text - 1);
}
static void
intr_sleep (int sec)
{
struct timespec ts;
ts.tv_sec = sec;
ts.tv_nsec = 0;
while (nanosleep (&ts, &ts) == -1 && errno == EINTR)
;
}
#define ZSIGALRM 14
int
main (void)
{
struct timespec ts;
timer_t timer_sig, timer_thr1, timer_thr2;
int retval;
struct sigevent sigev1 =
{
.sigev_notify = SIGEV_SIGNAL,
.sigev_signo = ZSIGALRM
};
struct sigevent sigev2;
struct itimerspec itimer1 = { { 0, 200000000 }, { 0, 200000000 } };
struct itimerspec itimer2 = { { 0, 100000000 }, { 0, 500000000 } };
struct itimerspec itimer3 = { { 0, 150000000 }, { 0, 300000000 } };
struct itimerspec old;
retval = clock_gettime (CLOCK_REALTIME, &ts);
sigev2.sigev_notify = SIGEV_THREAD;
sigev2.sigev_notify_function = notify_func1;
sigev2.sigev_notify_attributes = NULL;
/* It is unnecessary to do the following but to set a good example
we do it anyhow. */
sigev2.sigev_value.sival_ptr = NULL;
setvbuf (stdout, 0, _IOLBF, 0);
printf ("clock_gettime returned %d, timespec = { %jd, %jd }\n",
retval, (intmax_t) ts.tv_sec, (intmax_t) ts.tv_nsec);
retval = clock_getres (CLOCK_REALTIME, &ts);
printf ("clock_getres returned %d, timespec = { %jd, %jd }\n",
retval, (intmax_t) ts.tv_sec, (intmax_t) ts.tv_nsec);
if (timer_create (CLOCK_REALTIME, &sigev1, &timer_sig) != 0)
{
printf ("timer_create for timer_sig failed: %m\n");
exit (1);
}
if (timer_create (CLOCK_REALTIME, &sigev2, &timer_thr1) != 0)
{
printf ("timer_create for timer_thr1 failed: %m\n");
exit (1);
}
sigev2.sigev_notify_function = notify_func2;
if (timer_create (CLOCK_REALTIME, &sigev2, &timer_thr2) != 0)
{
printf ("timer_create for timer_thr2 failed: %m\n");
exit (1);
}
if (timer_settime (timer_thr1, 0, &itimer2, &old) != 0)
{
printf ("timer_settime for timer_thr1 failed: %m\n");
exit (1);
}
if (timer_settime (timer_thr2, 0, &itimer3, &old) != 0)
{
printf ("timer_settime for timer_thr2 failed: %m\n");
exit (1);
}
signal (ZSIGALRM, signal_func);
if (timer_settime (timer_sig, 0, &itimer1, &old) != 0)
{
printf ("timer_settime for timer_sig failed: %m\n");
exit (1);
}
intr_sleep (3);
if (timer_delete (timer_sig) != 0)
{
printf ("timer_delete for timer_sig failed: %m\n");
exit (1);
}
if (timer_delete (timer_thr1) != 0)
{
printf ("timer_delete for timer_thr1 failed: %m\n");
exit (1);
}
intr_sleep (3);
if (timer_delete (timer_thr2) != 0)
{
printf ("timer_delete for timer_thr2 failed: %m\n");
exit (1);
}
return 0;
}
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