• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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