| /* Tests for POSIX timer implementation. |
| 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 <signal.h> |
| #include <stdio.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <stdlib.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 = { %ld, %ld }\n", |
| retval, ts.tv_sec, ts.tv_nsec); |
| |
| retval = clock_getres (CLOCK_REALTIME, &ts); |
| |
| printf ("clock_getres returned %d, timespec = { %ld, %ld }\n", |
| retval, ts.tv_sec, 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; |
| } |