1 /* Copyright (C) 2003-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
38 sigemptyset (&sa
.sa_mask
);
40 if (sigaction (SIGUSR1
, &sa
, NULL
) < 0)
42 printf ("sigaction failed: %m\n");
45 if (raise (SIGUSR1
) < 0)
47 printf ("first raise failed: %m\n");
50 if (raise (SIGUSR1
) < 0)
52 printf ("second raise failed: %m\n");
57 printf ("signal handler not called 2 times\n");