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
testcase(VOID)39 static UINT32 testcase(VOID)
40 {
41 fd_set rfds;
42 //struct timeval tv;
43 struct timespec tv;
44 int retval;
45
46 /* Watch stdin (fd 0) to see when it has input. */
47 FD_ZERO(&rfds);
48 FD_SET(0, &rfds);
49
50 /* Wait up to three seconds. */
51 //tv.tv_sec = 3;
52 //tv.tv_usec = 0;
53 tv.tv_sec = 3;
54 tv.tv_nsec = 0;
55
56 retval = pselect(1, &rfds, nullptr, nullptr, &tv, ((long[]){ 0, _NSIG/8 }));
57
58 if (retval == -1) {
59 perror("select()");
60 } else if (retval) {
61 printf("Data is available now.\n");
62 } else { /* FD_ISSET(0, &rfds) will be true. */
63 printf("No data within three seconds.\n");
64 }
65
66 return LOS_OK;
67 }
68
IO_TEST_PSELECT_001(VOID)69 VOID IO_TEST_PSELECT_001(VOID)
70 {
71 TEST_ADD_CASE(__FUNCTION__, testcase, TEST_LIB, TEST_LIBC, TEST_LEVEL1, TEST_FUNCTION);
72 }
73