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
32 #include "It_test_IO.h"
33 #include "pthread.h"
34
35 const int BUF_SIZE = 128;
36 const int DELAY_TIME = 200;
37
38 static INT32 pipeFdPpoll[2];
39 static INT32 g_step = 1;
40 static CHAR strBuf[] = "hello world.";
41 static struct pollfd pfd;
42
pthread_01(void * arg)43 static void *pthread_01(void *arg)
44 {
45 INT32 retVal;
46 CHAR buf[BUF_SIZE];
47
48 /* 执行ppoll监视文件描述符 */
49 while (g_step < 3) { /* 3, 3rd step */
50 usleep(DELAY_TIME);
51 }
52 g_step++;
53 retVal = ppoll(&pfd, 1, NULL, NULL);
54 ICUNIT_ASSERT_NOT_EQUAL_NULL(retVal, -1, retVal);
55
56 while (g_step < 5) { /* 5, 5th step */
57 usleep(DELAY_TIME);
58 }
59 g_step++;
60
61 /* 判断revents */
62 if (pfd.revents & POLLIN) {
63 (void)memset_s(buf, sizeof(buf), 0, sizeof(buf));
64 retVal = read(pfd.fd, buf, BUF_SIZE);
65 ICUNIT_ASSERT_NOT_EQUAL_NULL(retVal, -1, retVal);
66
67 retVal = strcmp(strBuf, buf);
68 ICUNIT_ASSERT_EQUAL_NULL(retVal, 0, retVal);
69 }
70
71 while (g_step < 6) { /* 6, 6th step */
72 usleep(DELAY_TIME);
73 }
74 pthread_exit(NULL);
75 }
76
testcase(VOID)77 STATIC UINT32 testcase(VOID)
78 {
79 INT32 retVal;
80 pthread_t tid;
81
82 /* 建立管道 */
83 while (g_step < 1) { /* 1, 1st step */
84 usleep(DELAY_TIME);
85 }
86 retVal = pipe(pipeFdPpoll);
87 ICUNIT_ASSERT_NOT_EQUAL(retVal, -1, retVal);
88 g_step++;
89
90 /* 设置pfd */
91 pfd.fd = pipeFdPpoll[0];
92 pfd.events = POLLIN;
93
94 /* 开辟线程执行 ppoll */
95 while (g_step < 2) { /* 2, 2nd step */
96 usleep(DELAY_TIME);
97 }
98 retVal = pthread_create(&tid, NULL, pthread_01, NULL);
99 ICUNIT_ASSERT_EQUAL(retVal, 0, retVal);
100 g_step++;
101
102 /* 向管道写入数据 */
103 while (g_step < 4) { /* 4, 4th step */
104 usleep(DELAY_TIME);
105 }
106 sleep(1);
107
108 retVal = write(pipeFdPpoll[1], "hello world.", sizeof(strBuf));
109 ICUNIT_ASSERT_NOT_EQUAL(retVal, -1, retVal);
110 g_step++;
111
112 pthread_join(tid, NULL);
113
114 return LOS_OK;
115 }
116
IO_TEST_PPOLL_001(VOID)117 VOID IO_TEST_PPOLL_001(VOID)
118 {
119 TEST_ADD_CASE(__FUNCTION__, testcase, TEST_LIB, TEST_LIBC, TEST_LEVEL1, TEST_FUNCTION);
120 }