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1/* Test for completion signal handling.
2 Copyright (C) 2000-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <aio.h>
20#include <signal.h>
21#include <stdio.h>
22#include <stdlib.h>
23#include <unistd.h>
24#include <errno.h>
25
26int my_signo;
27
28volatile sig_atomic_t flag;
29
30
31static void
32sighandler (const int signo)
33{
34 flag = signo;
35}
36
37static int
38wait_flag (void)
39{
40 while (flag == 0)
41 {
42 puts ("Sleeping...");
43 sleep (1);
44 }
45
46 if (flag != my_signo)
47 {
48 printf ("signal handler received wrong signal, flag is %d\n", flag);
49 return 1;
50 }
51
52 return 0;
53}
54
55#ifndef SIGRTMIN
56# define SIGRTMIN -1
57# define SIGRTMAX -1
58#endif
59
60static int
61do_test (int argc, char *argv[])
62{
63 char name[] = "/tmp/aio4.XXXXXX";
64 int fd;
65 struct aiocb *arr[1];
66 struct aiocb cb;
67 static const char buf[] = "Hello World\n";
68 struct aioinit init = {10, 20, 0};
69 struct sigaction sa;
70 struct sigevent ev;
71
72 if (SIGRTMIN == -1)
73 {
74 printf ("RT signals not supported.\n");
75 return 0;
76 }
77
78 /* Select a signal from the middle of the available choices... */
79 my_signo = (SIGRTMAX + SIGRTMIN) / 2;
80
81 fd = mkstemp (name);
82 if (fd == -1)
83 {
84 printf ("cannot open temp name: %m\n");
85 return 1;
86 }
87
88 unlink (name);
89
90 /* Test also aio_init. */
91 aio_init (&init);
92
93 arr[0] = &cb;
94
95 cb.aio_fildes = fd;
96 cb.aio_lio_opcode = LIO_WRITE;
97 cb.aio_reqprio = 0;
98 cb.aio_buf = (void *) buf;
99 cb.aio_nbytes = sizeof (buf) - 1;
100 cb.aio_offset = 0;
101 cb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
102 cb.aio_sigevent.sigev_notify_function = NULL;
103 cb.aio_sigevent.sigev_notify_attributes = NULL;
104 cb.aio_sigevent.sigev_signo = my_signo;
105 cb.aio_sigevent.sigev_value.sival_ptr = NULL;
106
107 ev.sigev_notify = SIGEV_SIGNAL;
108 ev.sigev_notify_function = NULL;
109 ev.sigev_notify_attributes = NULL;
110 ev.sigev_signo = my_signo;
111
112 sa.sa_handler = sighandler;
113 sigemptyset (&sa.sa_mask);
114 sa.sa_flags = SA_RESTART;
115
116 if (sigaction (my_signo, &sa, NULL) < 0)
117 {
118 printf ("sigaction failed: %m\n");
119 return 1;
120 }
121
122 flag = 0;
123 /* First use aio_write. */
124 if (aio_write (arr[0]) < 0)
125 {
126 if (errno == ENOSYS)
127 {
128 puts ("no aio support in this configuration");
129 return 0;
130 }
131 printf ("aio_write failed: %m\n");
132 return 1;
133 }
134
135 if (wait_flag ())
136 return 1;
137
138 puts ("aio_write OK");
139
140 flag = 0;
141 /* Again with lio_listio. */
142 if (lio_listio (LIO_NOWAIT, arr, 1, &ev) < 0)
143 {
144 printf ("lio_listio failed: %m\n");
145 return 1;
146 }
147
148 if (wait_flag ())
149 return 1;
150
151 puts ("all OK");
152
153 return 0;
154}
155
156#include "../test-skeleton.c"
157

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