1 /* Test for notification mechanism in lio_listio.
2 Copyright (C) 2000-2022 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 <https://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 #include <pthread.h>
26
27
28 static pthread_barrier_t b;
29
30
31 static void
thrfct(sigval_t arg)32 thrfct (sigval_t arg)
33 {
34 int e = pthread_barrier_wait (&b);
35 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
36 {
37 puts ("thread: barrier_wait failed");
38 exit (1);
39 }
40 }
41
42
43 static int
do_test(int argc,char * argv[])44 do_test (int argc, char *argv[])
45 {
46 char name[] = "/tmp/aio2.XXXXXX";
47 int fd;
48 struct aiocb *arr[1];
49 struct aiocb cb;
50 static const char buf[] = "Hello World\n";
51
52 fd = mkstemp (name);
53 if (fd == -1)
54 {
55 printf ("cannot open temp name: %m\n");
56 return 1;
57 }
58
59 unlink (name);
60
61 if (pthread_barrier_init (&b, NULL, 2) != 0)
62 {
63 puts ("barrier_init failed");
64 return 1;
65 }
66
67 arr[0] = &cb;
68
69 cb.aio_fildes = fd;
70 cb.aio_lio_opcode = LIO_WRITE;
71 cb.aio_reqprio = 0;
72 cb.aio_buf = (void *) buf;
73 cb.aio_nbytes = sizeof (buf) - 1;
74 cb.aio_offset = 0;
75 cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
76 cb.aio_sigevent.sigev_notify_function = thrfct;
77 cb.aio_sigevent.sigev_notify_attributes = NULL;
78 cb.aio_sigevent.sigev_value.sival_ptr = NULL;
79
80 if (lio_listio (LIO_WAIT, arr, 1, NULL) < 0)
81 {
82 if (errno == ENOSYS)
83 {
84 puts ("no aio support in this configuration");
85 return 0;
86 }
87 printf ("lio_listio failed: %m\n");
88 return 1;
89 }
90
91 puts ("lio_listio returned");
92
93 int e = pthread_barrier_wait (&b);
94 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
95 {
96 puts ("barrier_wait failed");
97 return 1;
98 }
99
100 puts ("all OK");
101
102 return 0;
103 }
104
105 #include "../test-skeleton.c"
106