1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2022 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
33 #define SHMID_MAX 192
34 #define SHM_FLAG 0777
35
Testcase(VOID)36 static int Testcase(VOID)
37 {
38 int shmid[SHMID_MAX + 1] = {-1};
39 int ret;
40 int i;
41 struct shm_info shmInfo;
42 int leftShmIds;
43
44 ret = shmctl(0, SHM_INFO, reinterpret_cast<struct shmid_ds *>(&shmInfo));
45 ICUNIT_ASSERT_EQUAL(ret, SHMID_MAX, ret);
46 leftShmIds = SHMID_MAX - shmInfo.used_ids;
47
48 shmid[0] = shmget((key_t)0x1234, PAGE_SIZE, SHM_FLAG | IPC_CREAT); // 0x1234: a key used to create shared memory
49 ICUNIT_ASSERT_NOT_EQUAL(shmid[0], -1, shmid[0]);
50
51 ret = shmctl(shmid[0], IPC_RMID, NULL);
52 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
53
54 shmid[0] = shmget(IPC_PRIVATE, PAGE_SIZE, SHM_FLAG | IPC_CREAT);
55 ICUNIT_ASSERT_NOT_EQUAL(shmid[0], -1, shmid[0]);
56
57 ret = shmctl(shmid[0], IPC_RMID, NULL);
58 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
59
60 for (i = 0; i < leftShmIds; i++) {
61 shmid[i] = shmget(IPC_PRIVATE, PAGE_SIZE, SHM_FLAG | IPC_CREAT);
62 ICUNIT_ASSERT_NOT_EQUAL(shmid[i], -1, shmid[i]);
63 }
64
65 shmid[leftShmIds] = shmget(IPC_PRIVATE, PAGE_SIZE, SHM_FLAG | IPC_CREAT);
66 ICUNIT_ASSERT_EQUAL(shmid[leftShmIds], -1, shmid[leftShmIds]);
67
68 for (i = 0; i < leftShmIds; i++) {
69 ret = shmctl(shmid[i], IPC_RMID, NULL);
70 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
71 }
72
73 for (i = 0; i < leftShmIds; i++) {
74 ret = shmctl(shmid[i], IPC_RMID, NULL);
75 ICUNIT_ASSERT_EQUAL(ret, -1, ret);
76 }
77
78 return 0;
79 }
80
ItTestShm002(void)81 void ItTestShm002(void)
82 {
83 TEST_ADD_CASE("IT_MEM_SHM_002", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
84 }
85