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_shm.h"
32 #include "sys/types.h"
33
Testcase(void)34 static int Testcase(void)
35 {
36 const int memSize = 1024;
37 int shmid;
38 char *shared = NULL;
39 char testStr[] = "hello shmem";
40 pid_t pid;
41 int ret;
42 int status;
43
44 shmid = shmget((key_t)1234, memSize, 0666 | IPC_CREAT);
45 ICUNIT_ASSERT_NOT_EQUAL(shmid, -1, shmid);
46
47 ret = fork();
48 if (ret == 0) {
49 usleep(100000);
50 if ((shared = static_cast<char *>(shmat(shmid, 0, 0))) == reinterpret_cast<void *>(-1)) {
51 printf("child : error: shmat()\n");
52 exit(1);
53 }
54
55 if (strncmp(shared, testStr, sizeof(testStr)) != 0) {
56 printf("child : error strncmp() shared = %s\n", shared);
57 exit(1);
58 }
59
60 if ((shmdt(shared)) < 0) {
61 printf("child : error : shmdt()\n");
62 exit(1);
63 }
64
65 if (shmctl(shmid, IPC_RMID, NULL) == -1) {
66 printf("child : error : shmctl()\n");
67 exit(1);
68 }
69
70 exit(0);
71 } else {
72 pid = ret;
73 usleep(50000);
74
75 shared = static_cast<char *>(shmat(shmid, 0, 0));
76 ICUNIT_ASSERT_NOT_EQUAL(shared, reinterpret_cast<void *>(-1), shared);
77
78 ret = strncpy_s(shared, memSize, testStr, sizeof(testStr));
79 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
80 ret = shmdt(shared);
81 ICUNIT_ASSERT_NOT_EQUAL(ret, -1, ret);
82
83 usleep(100000);
84
85 ret = wait(&status);
86 status = WEXITSTATUS(status);
87 ICUNIT_ASSERT_EQUAL(ret, pid, ret);
88 ICUNIT_ASSERT_EQUAL(status, 0, status);
89 }
90
91 return 0;
92 }
93
ItTestShm007(void)94 void ItTestShm007(void)
95 {
96 TEST_ADD_CASE("IT_MEM_SHM_007", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
97 }
98