1/* Tests for sigisemptyset/sigorset/sigandset.
2 Copyright (C) 2020-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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 <https://www.gnu.org/licenses/>. */
18
19#include <signal.h>
20
21#include <support/check.h>
22
23static int
24do_test (void)
25{
26 {
27 sigset_t set;
28 sigemptyset (&set);
29 TEST_COMPARE (sigisemptyset (&set), 1);
30 }
31
32 {
33 sigset_t set;
34 sigfillset (&set);
35 TEST_COMPARE (sigisemptyset (&set), 0);
36 }
37
38 {
39 sigset_t setfill, setempty, set;
40 sigfillset (&setfill);
41 sigemptyset (&setempty);
42
43 sigorset (set: &set, left: &setfill, right: &setempty);
44 TEST_COMPARE (sigisemptyset (&set), 0);
45
46 sigandset (set: &set, left: &setfill, right: &setempty);
47 TEST_COMPARE (sigisemptyset (&set), 1);
48 }
49
50 /* Ensure current SIG_BLOCK mask empty. */
51 {
52 sigset_t set;
53 sigemptyset (&set);
54 TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
55 }
56
57 {
58 sigset_t set;
59 sigemptyset (&set);
60 TEST_COMPARE (sigprocmask (SIG_BLOCK, 0, &set), 0);
61 TEST_COMPARE (sigisemptyset (&set), 1);
62 }
63
64 {
65 sigset_t set;
66 sigfillset (&set);
67 TEST_COMPARE (sigprocmask (SIG_BLOCK, 0, &set), 0);
68 TEST_COMPARE (sigisemptyset (&set), 1);
69 }
70
71 /* Block all signals. */
72 {
73 sigset_t set;
74 sigfillset (&set);
75 TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
76 }
77
78 {
79 sigset_t set;
80 sigemptyset (&set);
81 TEST_COMPARE (sigpending (&set), 0);
82 TEST_COMPARE (sigisemptyset (&set), 1);
83 }
84
85 {
86 sigset_t set;
87 sigfillset (&set);
88 TEST_COMPARE (sigpending (&set), 0);
89 TEST_COMPARE (sigisemptyset (&set), 1);
90 }
91
92 return 0;
93}
94
95#include <support/test-driver.c>
96

source code of glibc/signal/tst-sigisemptyset.c