121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
/* Tests for POSIX timer implementation.
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Copyright (C) 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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static void
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notify_func (union sigval sigval)
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{
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puts ("notify_func");
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}
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static void
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signal_func (int sig)
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{
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static const char text[] = "signal_func\n";
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signal (sig, signal_func);
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write (STDOUT_FILENO, text, sizeof text - 1);
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}
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static void
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intr_sleep (int sec)
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{
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struct timespec ts;
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ts.tv_sec = sec;
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ts.tv_nsec = 0;
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while (nanosleep (&ts, &ts) == -1 && errno == EINTR)
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;
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}
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#define ZSIGALRM 14
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int
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main (void)
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{
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struct timespec ts;
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timer_t timer_sig, timer_thr1, timer_thr2;
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int retval;
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struct sigevent sigev1 =
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{
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.sigev_notify = SIGEV_SIGNAL,
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.sigev_signo = ZSIGALRM
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};
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struct sigevent sigev2 =
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{
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.sigev_notify = SIGEV_THREAD,
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._sigev_un =
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{
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._sigev_thread =
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{
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._function = notify_func
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}
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}
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};
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struct itimerspec itimer1 = { { 0, 200000000 }, { 0, 200000000 } };
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struct itimerspec itimer2 = { { 0, 100000000 }, { 0, 500000000 } };
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struct itimerspec itimer3 = { { 0, 150000000 }, { 0, 300000000 } };
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struct itimerspec old;
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retval = clock_gettime (CLOCK_REALTIME, &ts);
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setvbuf (stdout, 0, _IOLBF, 0);
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printf ("clock_gettime returned %d, timespec = { %ld, %ld }\n",
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retval, ts.tv_sec, ts.tv_nsec);
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retval = clock_getres (CLOCK_REALTIME, &ts);
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printf ("clock_getres returned %d, timespec = { %ld, %ld }\n",
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retval, ts.tv_sec, ts.tv_nsec);
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timer_create (CLOCK_REALTIME, &sigev1, &timer_sig);
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timer_create (CLOCK_REALTIME, &sigev2, &timer_thr1);
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timer_create (CLOCK_REALTIME, &sigev2, &timer_thr2);
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timer_settime (timer_thr1, 0, &itimer2, &old);
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timer_settime (timer_thr2, 0, &itimer3, &old);
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signal (ZSIGALRM, signal_func);
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timer_settime (timer_sig, 0, &itimer1, &old);
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timer_delete (-1);
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intr_sleep (3);
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timer_delete (timer_sig);
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timer_delete (timer_thr1);
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intr_sleep (3);
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timer_delete (timer_thr2);
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return 0;
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}
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