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 
23 static int
do_test(void)24 do_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, &setfill, &setempty);
44     TEST_COMPARE (sigisemptyset (&set), 0);
45 
46     sigandset (&set, &setfill, &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