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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/* Test for completion signal handling.
Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <aio.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
int my_signo;
volatile sig_atomic_t flag;
static void
sighandler (const int signo)
{
flag = signo;
}
static int
wait_flag (void)
{
while (flag == 0)
{
puts ("Sleeping...");
sleep (1);
}
if (flag != my_signo)
{
printf ("signal handler received wrong signal, flag is %d\n", flag);
return 1;
}
return 0;
}
#ifndef SIGRTMIN
# define SIGRTMIN -1
# define SIGRTMAX -1
#endif
static int
do_test (int argc, char *argv[])
{
char name[] = "/tmp/aio4.XXXXXX";
int fd;
struct aiocb *arr[1];
struct aiocb cb;
static const char buf[] = "Hello World\n";
struct aioinit init = {10, 20, 0};
struct sigaction sa;
struct sigevent ev;
if (SIGRTMIN == -1)
{
printf ("RT signals not supported.\n");
return 0;
}
/* Select a signal from the middle of the available choices... */
my_signo = (SIGRTMAX + SIGRTMIN) / 2;
fd = mkstemp (name);
if (fd == -1)
{
printf ("cannot open temp name: %m\n");
return 1;
}
unlink (name);
/* Test also aio_init. */
aio_init (&init);
arr[0] = &cb;
cb.aio_fildes = fd;
cb.aio_lio_opcode = LIO_WRITE;
cb.aio_reqprio = 0;
cb.aio_buf = (void *) buf;
cb.aio_nbytes = sizeof (buf) - 1;
cb.aio_offset = 0;
cb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
cb.aio_sigevent.sigev_notify_function = NULL;
cb.aio_sigevent.sigev_notify_attributes = NULL;
cb.aio_sigevent.sigev_signo = my_signo;
cb.aio_sigevent.sigev_value.sival_ptr = NULL;
ev.sigev_notify = SIGEV_SIGNAL;
ev.sigev_notify_function = NULL;
ev.sigev_notify_attributes = NULL;
ev.sigev_signo = my_signo;
sa.sa_handler = sighandler;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction (my_signo, &sa, NULL) < 0)
{
printf ("sigaction failed: %m\n");
return 1;
}
flag = 0;
/* First use aio_write. */
if (aio_write (arr[0]) < 0)
{
if (errno == ENOSYS)
{
puts ("no aio support in this configuration");
return 0;
}
printf ("aio_write failed: %m\n");
return 1;
}
if (wait_flag ())
return 1;
puts ("aio_write OK");
flag = 0;
/* Again with lio_listio. */
if (lio_listio (LIO_NOWAIT, arr, 1, &ev) < 0)
{
printf ("lio_listio failed: %m\n");
return 1;
}
if (wait_flag ())
return 1;
puts ("all OK");
return 0;
}
#include "../test-skeleton.c"
|
GitWeb