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 <stdlib.h>
34 #include <sys/time.h>
35 #include <sys/types.h>
36 #include <unistd.h>
37 #include "sys/select.h"
38
Testcase1(VOID)39 static UINT32 Testcase1(VOID)
40 {
41 static const int TAR_STR_LEN = 12; /* 12, str len */
42 int pipeFd[2], ret; /* 2, pipe return 2 file descirpter */
43 fd_set reads;
44 ret = pipe(pipeFd);
45 ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
46 ret = write(pipeFd[1], "Hello World", TAR_STR_LEN);
47 ICUNIT_GOTO_EQUAL(ret, TAR_STR_LEN, ret, EXIT);
48 FD_ZERO(&reads);
49 FD_SET(pipeFd[0], &reads);
50 ret = select(pipeFd[0] + 1, &reads, nullptr, nullptr, nullptr);
51 ICUNIT_GOTO_EQUAL(ret, 1, ret, EXIT);
52 ret = FD_ISSET(pipeFd[0], &reads);
53 ICUNIT_GOTO_NOT_EQUAL(ret, 0, ret, EXIT);
54 close(pipeFd[0]);
55 close(pipeFd[1]);
56 return LOS_OK;
57 EXIT:
58 close(pipeFd[0]);
59 close(pipeFd[1]);
60 return LOS_NOK;
61 }
62
63 #define V_SIGMASK 0x5555
testcase(VOID)64 static UINT32 testcase(VOID)
65 {
66 fd_set rfds;
67 struct timespec tv;
68 int retval;
69 pid_t pid;
70 int pipeFd[2]; /* 2, pipe id num */
71 char buffer[40]; /* 40, buffer size */
72 int i = 0;
73 int status;
74
75 sigset_t mask;
76
77 retval = Testcase1(); /* first check select works */
78 ICUNIT_GOTO_EQUAL(retval, 0, retval, OUT);
79
80 retval = pipe(pipeFd);
81 ICUNIT_GOTO_EQUAL(retval, 0, retval, OUT);
82
83 /* Watch fd to see when it has input. */
84 FD_ZERO(&rfds);
85 FD_SET(pipeFd[0], &rfds);
86
87 /* Wait up to three seconds. */
88 tv.tv_sec = 3; /* 3, wait timer, second */
89 tv.tv_nsec = 5; /* 5, wait timer, nano second */
90
91 pid = fork();
92 if (pid == 0) {
93 close(pipeFd[1]);
94
95 retval = pselect(pipeFd[0] + 1, &rfds, nullptr, nullptr, &tv, &mask);
96 close(pipeFd[0]);
97
98 if (retval) {
99 exit(LOS_OK);
100 } else {
101 exit(LOS_NOK);
102 }
103 } else {
104 sleep(1);
105 close(pipeFd[0]);
106 retval = write(pipeFd[1], "0123456789012345678901234567890123456789", 40); /* write 40 bytes to stdin(fd 0) */
107 ICUNIT_GOTO_EQUAL(retval, 40, retval, OUT);
108 close(pipeFd[1]);
109
110 wait(&status);
111 status = WEXITSTATUS(status);
112 ICUNIT_ASSERT_EQUAL(status, LOS_OK, status);
113 }
114
115 return LOS_OK;
116 OUT:
117 return LOS_NOK;
118 }
119
IO_TEST_PSELECT_001(VOID)120 VOID IO_TEST_PSELECT_001(VOID)
121 {
122 TEST_ADD_CASE(__FUNCTION__, testcase, TEST_LIB, TEST_LIBC, TEST_LEVEL1, TEST_FUNCTION);
123 }
124