1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <errno.h>
17 #include <signal.h>
18
19 #include "test.h"
20
21 static int handler_count = 0;
22
handler(int sig)23 void handler(int sig)
24 {
25 handler_count++;
26 }
27
28 /**
29 * @tc.name : sigsuspend_0100
30 * @tc.desc : wait for a signal
31 * @tc.level : Level 0
32 */
sigsuspend_0100(void)33 void sigsuspend_0100(void)
34 {
35 sigset_t set;
36 sigemptyset(&set);
37
38 int sig = SIGALRM;
39 sigaddset(&set, sig);
40 sigprocmask(SIG_BLOCK, &set, NULL);
41
42 int flags = 0;
43 struct sigaction act = {.sa_flags = flags, .sa_handler = handler};
44 struct sigaction old_act = {0};
45 int result = sigaction(sig, &act, &old_act);
46 if (result != 0) {
47 t_error("%s failed: result = %d\n", __func__, result);
48 }
49
50 sigset_t pending_set;
51 sigemptyset(&pending_set);
52 sigpending(&pending_set);
53
54 for (int i = SIGHUP; i <= SIGSTKSZ; ++i) {
55 result = sigismember(&pending_set, i);
56 if (result != 0) {
57 t_error("%s failed: result = %d, i = %d\n", __func__, result, i);
58 }
59 }
60
61 raise(sig);
62 if (handler_count != 0) {
63 t_error("%s failed: handler_count = %d\n", __func__, handler_count);
64 }
65
66 sigemptyset(&pending_set);
67 sigpending(&pending_set);
68
69 for (int i = SIGHUP; i <= SIGSTKSZ; ++i) {
70 if ((i == sig) != (sigismember(&pending_set, i))) {
71 t_error("%s failed: i = %d, sig = %d\n", __func__, i, sig);
72 }
73 }
74
75 sigset_t set_without_sig;
76 sigfillset(&set_without_sig);
77 sigdelset(&set_without_sig, sig);
78
79 result = sigsuspend(&set_without_sig);
80 if (result != -1) {
81 t_error("%s failed: result = %d\n", __func__, result);
82 }
83
84 if (errno != EINTR) {
85 t_error("%s failed: errno = %d\n", __func__, errno);
86 }
87
88 if (handler_count != 1) {
89 t_error("%s failed: handler_count = %d\n", __func__, handler_count);
90 }
91 }
92
main(int argc,char * argv[])93 int main(int argc, char *argv[])
94 {
95 sigsuspend_0100();
96
97 return t_status;
98 }
99