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 int g_break = 0;
36 /* Sample : Father process want to free zombine child process */
SigChildResponse(int signo)37 static void SigChildResponse(int signo)
38 {
39 printf("Child Response\n");
40 wait(nullptr);
41 }
42
43 /* Register SIGCHLD, through signal to restore the child memory */
TestSigKillResp()44 static int TestSigKillResp()
45 {
46 void (*ret)(int) = nullptr;
47 int fpid, fpids, status, retValue;
48
49 signal(SIGCHLD, SigChildResponse);
50 fpid = fork();
51 ICUNIT_ASSERT_WITHIN_EQUAL(fpid, 0, UINT_MAX, fpid);
52 if (fpid == 0) {
53 fpids = fork();
54 if (fpids == 0) {
55 while (1) {
56 sleep(2); // 2, sleep 10 second.
57 }
58 }
59 usleep(10000); // 10000, Used to calculate the delay time.
60 retValue = kill(fpids, SIGKILL);
61 if (retValue != 0) {
62 exit(retValue);
63 }
64 retValue = waitpid(fpids, NULL, 0);
65 if (retValue != fpids) {
66 exit(retValue);
67 }
68 exit(0);
69 }
70 retValue = waitpid(fpid, &status, 0);
71 ICUNIT_ASSERT_EQUAL(retValue, fpid, retValue);
72 ICUNIT_ASSERT_EQUAL(WEXITSTATUS(status), 0, WEXITSTATUS(status));
73 ret = signal(SIGCHLD, SIG_DFL);
74
75 return 0;
76 }
77
ItPosixSignal007(void)78 void ItPosixSignal007(void)
79 {
80 TEST_ADD_CASE("IT_POSIX_SIGNAL_007", TestSigKillResp, TEST_POSIX, TEST_SIGNAL, TEST_LEVEL0, TEST_FUNCTION);
81 }
82