1 /*
2 * Copyright (c) 2021-2021, 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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "it_test_signal.h"
32
33 #define TAR_STR_LEN 12
34
TestCase(VOID)35 static UINT32 TestCase(VOID)
36 {
37 int pipefd[2]; // 2, array subscript
38 int retValue = pipe2(pipefd, O_CLOEXEC);
39 ICUNIT_ASSERT_EQUAL(retValue, 0, retValue);
40
41 int *readFd = &pipefd[0];
42 int *writeFd = &pipefd[1];
43 char readbuffer[100];
44 int status, ret;
45
46 pid_t pid = fork();
47 if (pid == -1) {
48 printf("Fork Error!\n");
49 return -1;
50 } else if (pid == 0) {
51 for (int i = 0; i < 3; i++) { // 3, Number of cycles
52 errno = 0;
53 char sentence1[15] = "Hello World";
54 char a[4] = {0};
55 retValue = sprintf_s(a, sizeof(a), "%d", i);
56 ICUNIT_ASSERT_NOT_EQUAL(retValue, 0, retValue);
57 retValue = strcat_s(sentence1, sizeof(sentence1), a);
58 ICUNIT_ASSERT_EQUAL(retValue, 0, retValue);
59 ret = write(*writeFd, sentence1, strlen(sentence1) + 1);
60 ICUNIT_ASSERT_EQUAL(ret, 13, ret); // 13, assert that function Result is equal to this.
61 usleep(100000); // 100000, Used to calculate the delay time.
62
63 retValue = memset_s(readbuffer, sizeof(readbuffer), 0, sizeof(readbuffer));
64 ICUNIT_ASSERT_EQUAL(retValue, 0, retValue);
65 retValue = read(*readFd, readbuffer, sizeof(readbuffer));
66 ICUNIT_ASSERT_EQUAL(retValue, 13, retValue); // 13, assert that function Result is equal to this.
67 ret = strncmp((readbuffer), (sentence1), (strlen(sentence1)));
68 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
69 usleep(100000); // 100000, Used to calculate the delay time.
70 }
71 exit(0);
72 }
73 ret = waitpid(pid, &status, 0);
74 ICUNIT_ASSERT_EQUAL(ret, pid, ret);
75 ICUNIT_ASSERT_EQUAL(WEXITSTATUS(status), 0, WEXITSTATUS(status));
76 ret = unlink("/dev/pipe0");
77 ICUNIT_ASSERT_NOT_EQUAL(ret, 0, ret);
78 ret = close(pipefd[0]);
79 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
80 ret = unlink("/dev/pipe0");
81 ICUNIT_ASSERT_NOT_EQUAL(ret, 0, ret);
82 ret = close(pipefd[1]);
83 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
84 ret = unlink("/dev/pipe0");
85 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
86 return 0;
87 }
88
ItIpcPipe004(void)89 void ItIpcPipe004(void)
90 {
91 TEST_ADD_CASE(__FUNCTION__, TestCase, TEST_LIB, TEST_LIBC, TEST_LEVEL1, TEST_FUNCTION);
92 }
93