1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tmacros.h>
#include "test_support.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <rtems/malloc.h>
const char rtems_test_name[] = "SPFIFO 2";
#define NUM_OPEN_REQ 26
static void create_fifo(void)
{
int status;
status = mkfifo("/fifo01", 0777);
rtems_test_assert(status == 0);
}
static void open_fifo(int expected, int flags)
{
int fd;
fd = open("/fifo01", flags);
printf( "expect status=%d errno=%d/(%s)\n", fd, errno, strerror(errno) );
if ( expected ) {
rtems_test_assert(fd == -1);
rtems_test_assert(errno == expected);
} else {
rtems_test_assert(fd != -1);
close( fd );
}
}
static rtems_task Init(
rtems_task_argument argument
)
{
void *p;
int num_opens = 0;
int index = 0;
TEST_BEGIN();
puts( "Creating FIFO" );
create_fifo();
p = rtems_heap_greedy_allocate(NULL, 0);
puts("Opening FIFO.. expect ENOMEM since no memory is available");
open_fifo(ENOMEM, O_RDWR);
rtems_heap_greedy_free(p);
puts( "Opening FIFO in RDWR mode. Expect OK" );
open_fifo(0, O_RDWR);
++num_opens;
puts( "Opening FIFO in non blocking RDONLY mode. Expect OK");
open_fifo(0, O_RDONLY | O_NONBLOCK);
++num_opens;
puts( "Opening FIFO in non blocking WRONLY mode. Expect ENXIO");
open_fifo(ENXIO, O_WRONLY | O_NONBLOCK);
++num_opens;
puts("\nMultiple opens\n");
index = 0;
do {
printf("%d... ", index+1);
open_fifo(0, O_RDONLY | O_NONBLOCK);
++index;
} while ( index < NUM_OPEN_REQ - num_opens );
TEST_END();
rtems_test_exit(0);
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 5
#define CONFIGURE_IMFS_ENABLE_MKFIFO
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
|
