1/* Copyright (C) 2003-2024 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <pthread.h>
20#include <signal.h>
21#include <stdio.h>
22#include <stdlib.h>
23
24static int
25do_test (void)
26{
27 sigset_t ss;
28
29 sigemptyset (&ss);
30
31 int i;
32 for (i = 0; i < 10000; ++i)
33 {
34 long int r = random ();
35
36 if (r != SIG_BLOCK && r != SIG_SETMASK && r != SIG_UNBLOCK)
37 {
38 int e = pthread_sigmask (how: r, newmask: &ss, NULL);
39
40 if (e == 0)
41 {
42 printf (format: "pthread_sigmask succeeded for how = %ld\n", r);
43 exit (1);
44 }
45
46 if (e != EINVAL)
47 {
48 puts (s: "pthread_sigmask didn't return EINVAL");
49 exit (1);
50 }
51 }
52 }
53
54 return 0;
55}
56
57#define TEST_FUNCTION do_test ()
58#include "../test-skeleton.c"
59

source code of glibc/sysdeps/pthread/tst-signal4.c