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 | static pthread_barrier_t b; |
28 | |
29 | |
30 | static void |
31 | thrfct (sigval_t arg) |
32 | { |
33 | int e = pthread_barrier_wait (barrier: &b); |
34 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
35 | { |
36 | puts (s: "child: barrier_wait failed" ); |
37 | exit (1); |
38 | } |
39 | } |
40 | |
41 | |
42 | static int |
43 | do_test (int argc, char *argv[]) |
44 | { |
45 | char name[] = "/tmp/aio3.XXXXXX" ; |
46 | int fd; |
47 | struct aiocb *arr[1]; |
48 | struct aiocb cb; |
49 | static const char buf[] = "Hello World\n" ; |
50 | |
51 | fd = mkstemp (template: name); |
52 | if (fd == -1) |
53 | { |
54 | printf (format: "cannot open temp name: %m\n" ); |
55 | return 1; |
56 | } |
57 | |
58 | unlink (name: name); |
59 | |
60 | if (pthread_barrier_init (barrier: &b, NULL, count: 2) != 0) |
61 | { |
62 | puts (s: "barrier_init failed" ); |
63 | return 1; |
64 | } |
65 | |
66 | arr[0] = &cb; |
67 | |
68 | cb.aio_fildes = fd; |
69 | cb.aio_lio_opcode = LIO_WRITE; |
70 | cb.aio_reqprio = 0; |
71 | cb.aio_buf = (void *) buf; |
72 | cb.aio_nbytes = sizeof (buf) - 1; |
73 | cb.aio_offset = 0; |
74 | cb.aio_sigevent.sigev_notify = SIGEV_THREAD; |
75 | cb.aio_sigevent.sigev_notify_function = thrfct; |
76 | cb.aio_sigevent.sigev_notify_attributes = NULL; |
77 | cb.aio_sigevent.sigev_value.sival_ptr = NULL; |
78 | |
79 | if (lio_listio (LIO_NOWAIT, list: arr, nent: 1, NULL) < 0) |
80 | { |
81 | if (errno == ENOSYS) |
82 | { |
83 | puts (s: "no aio support in this configuration" ); |
84 | return 0; |
85 | } |
86 | printf (format: "lio_listio failed: %m\n" ); |
87 | return 1; |
88 | } |
89 | |
90 | if (aio_suspend (list: (const struct aiocb *const *) arr, nent: 1, NULL) < 0) |
91 | { |
92 | printf (format: "aio_suspend failed: %m\n" ); |
93 | return 1; |
94 | } |
95 | |
96 | int e = pthread_barrier_wait (barrier: &b); |
97 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
98 | { |
99 | puts (s: "parent: barrier_wait failed" ); |
100 | return 1; |
101 | } |
102 | |
103 | puts (s: "all OK" ); |
104 | |
105 | return 0; |
106 | } |
107 | |
108 | #include "../test-skeleton.c" |
109 | |