1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include "it_test_signal.h"
32 #include "signal.h"
33 #include "sys/wait.h"
34
35 static const int SIG_TEST_COUNT = 3;
36 static int g_sigCount = 0;
SigPrint(int sig)37 static void SigPrint(int sig)
38 {
39 g_sigCount++;
40 }
41
TestRaise()42 static int TestRaise()
43 {
44 int count = 0;
45 int status = 0;
46 int fpid;
47 int fatherPid;
48 int sonPid;
49 void (*ret)(int) = NULL;
50 int retValue;
51
52 g_sigCount = 0;
53 ret = signal(SIGTERM, SigPrint);
54 ICUNIT_ASSERT_NOT_EQUAL(ret, NULL, ret);
55 retValue = raise(SIGTERM);
56 ICUNIT_ASSERT_EQUAL(retValue, 0, retValue);
57 fatherPid = getpid();
58 fpid = fork();
59 // fpid check err
60 ICUNIT_ASSERT_WITHIN_EQUAL(fpid, 0, UINT_MAX, fpid);
61 if (fpid == 0) {
62 while (1) {
63 usleep(500000); // 500000, Used to calculate the delay time.
64 count++;
65 if (g_sigCount == SIG_TEST_COUNT) {
66 break;
67 }
68 // check child process num
69 // 0 means count should be positive and 2 controls the upper bound of count
70 if ((count) < (0) || (count) > (SIG_TEST_COUNT * 2)) {
71 exit(count);
72 }
73 }
74 exit(0);
75 } else { // parent threa
76 sonPid = fpid;
77 usleep(10); // 10, Used to calculate the delay time.
78 while (1) {
79 retValue = kill(sonPid, SIGTERM);
80
81 sleep(1);
82 count++;
83 if (count == SIG_TEST_COUNT) {
84 break;
85 }
86 }
87 retValue = waitpid(sonPid, &status, 0);
88 ICUNIT_ASSERT_EQUAL(retValue, sonPid, retValue);
89 ICUNIT_ASSERT_EQUAL(WEXITSTATUS(status), 0, WEXITSTATUS(status));
90 }
91 return g_sigCount;
92 }
93
TestCase(void)94 static int TestCase(void)
95 {
96 int count = TestRaise();
97 // count should be 1, for global variables are not shared between different processors
98 ICUNIT_ASSERT_EQUAL(count, 1, count);
99 return 0;
100 }
101
ItPosixSignal003(void)102 void ItPosixSignal003(void)
103 {
104 TEST_ADD_CASE("IT_POSIX_SIGNAL_003", TestCase, TEST_POSIX, TEST_SIGNAL, TEST_LEVEL0, TEST_FUNCTION);
105 }
106