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 *shared = NULL;
38 int shmid;
39 int ret;
40 int status;
41
42 shmid = shmget((key_t)IPC_PRIVATE, memSize, 0666 | IPC_CREAT);
43 ICUNIT_ASSERT_NOT_EQUAL(shmid, -1, shmid);
44
45 ret = fork();
46 if (ret == 0) {
47 shared = (int *)shmat(shmid, NULL, 0);
48 if (shared == reinterpret_cast<int *>(-1)) {
49 exit(1);
50 }
51 *shared = 2;
52 ret = shmdt(shared);
53 ICUNIT_ASSERT_NOT_EQUAL(ret, -1, ret);
54 exit(0);
55 } else {
56 usleep(20000);
57 shared = (int *)shmat(shmid, NULL, 0);
58 ICUNIT_ASSERT_NOT_EQUAL(shared, reinterpret_cast<int *>(-1), shared);
59
60 ICUNIT_ASSERT_EQUAL(*shared, 2, *shared);
61
62 ret = shmdt(shared);
63 ICUNIT_ASSERT_NOT_EQUAL(ret, -1, ret);
64
65 wait(&status);
66 status = WEXITSTATUS(status);
67 ICUNIT_ASSERT_EQUAL(status, 0, status);
68
69 ret = shmctl(shmid, IPC_RMID, NULL);
70 ICUNIT_ASSERT_NOT_EQUAL(ret, -1, ret);
71 }
72
73 return 0;
74 }
75
ItTestShm011(void)76 void ItTestShm011(void)
77 {
78 TEST_ADD_CASE("IT_MEM_SHM_011", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
79 }
80