1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #undef _XOPEN_SOURCE
32 #define _XOPEN_SOURCE 600
33
34 #include "It_posix_mutex.h"
35 #include "unistd.h"
36
37 #define THREAD_NUM 6
38 #define LOOPS 3
39
40 static pthread_mutex_t g_mutex040 = PTHREAD_MUTEX_INITIALIZER;
41 static int g_value;
42
TaskF01(void * parm)43 static void *TaskF01(void *parm)
44 {
45 int i, tmp;
46 int rc;
47
48 /* Loopd M times to acquire the mutex, increase the value,
49 and then release the mutex. */
50
51 for (i = 0; i < LOOPS; ++i) {
52 rc = pthread_mutex_lock(&g_mutex040);
53 if (rc != 0) {
54 return (void *)(LOS_NOK);
55 }
56
57 tmp = g_value + 1;
58 usleep(1000); // 1000, delay the increasement operation.
59 g_value = tmp;
60
61 rc = pthread_mutex_unlock(&g_mutex040);
62 if (rc != 0) {
63 return (void *)(LOS_NOK);
64 }
65 sleep(1);
66 }
67
68 return (void *)(LOS_OK);
69 }
70
Testcase(VOID)71 static UINT32 Testcase(VOID)
72 {
73 int i, rc;
74 pthread_t threads[THREAD_NUM];
75
76 g_value = 0;
77 /* Create threads */
78 for (i = 0; i < THREAD_NUM; ++i) {
79 rc = pthread_create(&threads[i], NULL, TaskF01, NULL);
80 ICUNIT_ASSERT_EQUAL(rc, 0, rc);
81 }
82
83 /* Wait to join all threads */
84 for (i = 0; i < THREAD_NUM; ++i) {
85 rc = pthread_join(threads[i], NULL);
86 ICUNIT_ASSERT_EQUAL(rc, 0, rc);
87 }
88 pthread_mutex_destroy(&g_mutex040);
89
90 /* Check if the final value is as expected */
91 ICUNIT_ASSERT_EQUAL(g_value, (THREAD_NUM) * LOOPS, LOS_NOK);
92
93 return LOS_OK;
94 }
95
96 /**
97 * @tc.name: ItPosixMux038
98 * @tc.desc: Test interface pthread_mutex_lock
99 * @tc.type: FUNC
100 * @tc.require: issueI5YAEX
101 */
102
ItPosixMux038(void)103 VOID ItPosixMux038(void)
104 {
105 TEST_ADD_CASE("ItPosixMux038", Testcase, TEST_POSIX, TEST_MUX, TEST_LEVEL2, TEST_FUNCTION);
106 }
107