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 "signal.h"
34 #include "pthread.h"
35
36 const int BUF_SIZE = 128;
37 const int DELAY_TIME = 200;
38
39 static int pipeFdPpoll[2];
40 static int g_step = 1;
41 static char strBuf[] = "hello world.";
42 static struct pollfd pfd;
43
pthread_01(void * arg)44 static void *pthread_01(void *arg)
45 {
46 int retVal;
47 char buf[BUF_SIZE];
48 const struct timespec timeout = {10000, 0};
49
50 /* 执行ppoll监视文件描述符 */
51 while (g_step < 4) { /* 4, 4th step */
52 usleep(DELAY_TIME);
53 }
54 g_step++;
55 retVal = ppoll(&pfd, 1, &timeout, NULL);
56 ICUNIT_ASSERT_NOT_EQUAL_NULL(retVal, -1, retVal);
57
58 /* 判断revents */
59 if (pfd.revents & POLLIN) {
60 (void)memset_s(buf, sizeof(buf), 0, sizeof(buf));
61 retVal = read(pfd.fd, buf, BUF_SIZE);
62 ICUNIT_ASSERT_NOT_EQUAL_NULL(retVal, -1, retVal);
63 retVal = strcmp(strBuf, buf);
64 ICUNIT_ASSERT_EQUAL_NULL(retVal, 0, retVal);
65 }
66
67 while (g_step < 5) { /* 5, 5th step */
68 usleep(DELAY_TIME);
69 }
70 pthread_exit(NULL);
71 }
72
testcase(VOID)73 static UINT32 testcase(VOID)
74 {
75 int retVal;
76 pthread_t tid;
77
78 /* 建立管道 */
79 while (g_step < 1) {
80 usleep(DELAY_TIME);
81 }
82 retVal = pipe(pipeFdPpoll);
83 ICUNIT_ASSERT_NOT_EQUAL(retVal, -1, retVal);
84 g_step++;
85
86 /* 设置pfd */
87 pfd.fd = pipeFdPpoll[0];
88 pfd.events = POLLIN;
89
90 /* 向管道写入数据 */
91 while (g_step < 2) { /* 2, 2nd step */
92 usleep(DELAY_TIME);
93 }
94 sleep(1);
95
96 retVal = write(pipeFdPpoll[1], "hello world.", sizeof(strBuf));
97 ICUNIT_ASSERT_NOT_EQUAL(retVal, -1, retVal);
98 g_step++;
99
100 /* 开辟线程执行 ppoll */
101 while (g_step < 3) { /* 3, 3rd step */
102 usleep(DELAY_TIME);
103 }
104 retVal = pthread_create(&tid, NULL, pthread_01, NULL);
105 ICUNIT_ASSERT_EQUAL(retVal, 0, retVal);
106 g_step++;
107
108 pthread_join(tid, NULL);
109
110 return LOS_OK;
111 }
112
IO_TEST_PPOLL_002(VOID)113 VOID IO_TEST_PPOLL_002(VOID)
114 {
115 TEST_ADD_CASE(__FUNCTION__, testcase, TEST_LIB, TEST_LIBC, TEST_LEVEL1, TEST_FUNCTION);
116 }