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- /* Copyright (C) 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
- 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; if not, see
- <http://www.gnu.org/licenses/>. */
- #include <errno.h>
- #include <error.h>
- #include <signal.h>
- #include <stdlib.h>
- #include <stdio.h>
- volatile int count;
- void
- sh (int sig)
- {
- ++count;
- }
- int
- main (void)
- {
- struct sigaction sa;
- sa.sa_handler = sh;
- sigemptyset (&sa.sa_mask);
- sa.sa_flags = 0;
- if (sigaction (SIGUSR1, &sa, NULL) < 0)
- {
- printf ("sigaction failed: %m\n");
- exit (1);
- }
- if (raise (SIGUSR1) < 0)
- {
- printf ("first raise failed: %m\n");
- exit (1);
- }
- if (raise (SIGUSR1) < 0)
- {
- printf ("second raise failed: %m\n");
- exit (1);
- }
- if (count != 2)
- {
- printf ("signal handler not called 2 times\n");
- exit (1);
- }
- exit (0);
- }
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