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 #include "it_test_signal.h"
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <unistd.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <fcntl.h>
38
TestMkfifo()39 static int TestMkfifo()
40 {
41 char buffer[80];
42 int fd;
43 int retValue;
44 pid_t pid;
45
46 unlink("/dev/fifo");
47
48 retValue = mkfifo("/dev/fifo", 0777); // 0777, mkfifo config.
49 printf("mkfifo begin,retValue=%d\n", retValue);
50
51 char sentence[] = "Hello World";
52
53 pid = fork();
54 if (pid < 0) {
55 printf("Fork error\n");
56 return -1;
57 } else if (pid == 0) {
58 fd = open("/dev/fifo", O_WRONLY);
59 if (fd < 0) {
60 return -1;
61 }
62 write(fd, sentence, sizeof(sentence));
63 close(fd);
64 exit(0);
65 } else {
66 fd = open("/dev/fifo", O_RDONLY);
67 if (fd < 0) {
68 return -1;
69 }
70 read(fd, buffer, sizeof(buffer));
71 printf("Receive data: %s\n", buffer);
72 close(fd);
73 }
74 return 0;
75 }
76
77
ItPosixMkfifo001(void)78 void ItPosixMkfifo001(void)
79 {
80 TEST_ADD_CASE(__FUNCTION__, TestMkfifo, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
81 }
82