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8b8cc76f | 1 | /* Test for AIO POSIX compliance. |
f7a9f785 | 2 | Copyright (C) 2001-2016 Free Software Foundation, Inc. |
8b8cc76f UD |
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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
8b8cc76f UD |
18 | |
19 | #include <aio.h> | |
20 | #include <error.h> | |
21 | #include <errno.h> | |
84ad622b | 22 | #include <fcntl.h> |
8b8cc76f UD |
23 | #include <stdio.h> |
24 | #include <stdlib.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | ||
28 | /* We might wait for 3 seconds, so increase timeout to 10 seconds. */ | |
29 | #define TIMEOUT 10 | |
30 | ||
31 | ||
32 | #define TEST_FUNCTION do_test () | |
33 | static int | |
34 | do_test (void) | |
35 | { | |
36 | int result = 0; | |
8fe802e8 RM |
37 | int piped[2]; |
38 | ||
39 | /* Make a pipe that we will never write to, so we can block reading it. */ | |
40 | if (pipe (piped) < 0) | |
41 | { | |
42 | perror ("pipe"); | |
43 | return 1; | |
44 | } | |
8b8cc76f UD |
45 | |
46 | /* Test for aio_cancel() detecting invalid file descriptor. */ | |
47 | { | |
48 | struct aiocb cb; | |
49 | int fd = -1; | |
50 | ||
51 | cb.aio_fildes = fd; | |
52 | cb.aio_offset = 0; | |
53 | cb.aio_buf = NULL; | |
54 | cb.aio_nbytes = 0; | |
55 | cb.aio_reqprio = 0; | |
56 | cb.aio_sigevent.sigev_notify = SIGEV_NONE; | |
57 | ||
58 | errno = 0; | |
59 | ||
60 | /* Case one: invalid fds that match. */ | |
61 | if (aio_cancel (fd, &cb) != -1 || errno != EBADF) | |
62 | { | |
ffa8d2a0 RM |
63 | if (errno == ENOSYS) |
64 | { | |
65 | puts ("no aio support in this configuration"); | |
66 | return 0; | |
67 | } | |
68 | ||
8b8cc76f UD |
69 | puts ("aio_cancel( -1, {-1..} ) did not return -1 or errno != EBADF"); |
70 | ++result; | |
71 | } | |
72 | ||
73 | cb.aio_fildes = -2; | |
74 | errno = 0; | |
75 | ||
76 | /* Case two: invalid fds that do not match; just print warning. */ | |
77 | if (aio_cancel (fd, &cb) != -1 || errno != EBADF) | |
78 | puts ("aio_cancel( -1, {-2..} ) did not return -1 or errno != EBADF"); | |
79 | } | |
80 | ||
e913141d | 81 | /* Test for aio_fsync() detecting bad fd. */ |
8b8cc76f UD |
82 | { |
83 | struct aiocb cb; | |
84 | int fd = -1; | |
85 | ||
86 | cb.aio_fildes = fd; | |
87 | cb.aio_offset = 0; | |
88 | cb.aio_buf = NULL; | |
89 | cb.aio_nbytes = 0; | |
90 | cb.aio_reqprio = 0; | |
91 | cb.aio_sigevent.sigev_notify = SIGEV_NONE; | |
92 | ||
93 | errno = 0; | |
94 | ||
95 | /* Case one: invalid fd. */ | |
96 | if (aio_fsync (O_SYNC, &cb) != -1 || errno != EBADF) | |
97 | { | |
98 | puts ("aio_fsync( op, {-1..} ) did not return -1 or errno != EBADF"); | |
99 | ++result; | |
100 | } | |
8b8cc76f UD |
101 | } |
102 | ||
103 | /* Test for aio_suspend() suspending even if completed elements in list. */ | |
104 | { | |
05ae97d8 UD |
105 | #define BYTES 8 |
106 | const int ELEMS = 2; | |
8b8cc76f | 107 | int i, r, fd; |
35457070 | 108 | static char buff[BYTES]; |
8b8cc76f UD |
109 | char name[] = "/tmp/aio7.XXXXXX"; |
110 | struct timespec timeout; | |
696efd11 | 111 | static struct aiocb cb0, cb1; |
8b8cc76f UD |
112 | struct aiocb *list[ELEMS]; |
113 | ||
114 | fd = mkstemp (name); | |
115 | if (fd < 0) | |
116 | error (1, errno, "creating temp file"); | |
117 | ||
118 | if (unlink (name)) | |
119 | error (1, errno, "unlinking temp file"); | |
120 | ||
121 | if (write (fd, "01234567", BYTES) != BYTES) | |
122 | error (1, errno, "writing to temp file"); | |
123 | ||
124 | cb0.aio_fildes = fd; | |
125 | cb0.aio_offset = 0; | |
126 | cb0.aio_buf = buff; | |
127 | cb0.aio_nbytes = BYTES; | |
128 | cb0.aio_reqprio = 0; | |
129 | cb0.aio_sigevent.sigev_notify = SIGEV_NONE; | |
130 | ||
131 | r = aio_read (&cb0); | |
132 | if (r != 0) | |
133 | error (1, errno, "reading from file"); | |
134 | ||
135 | while (aio_error (&(cb0)) == EINPROGRESS) | |
136 | usleep (10); | |
137 | ||
138 | for (i = 0; i < BYTES; i++) | |
139 | printf ("%c ", buff[i]); | |
140 | printf ("\n"); | |
141 | ||
142 | /* At this point, the first read is completed, so start another one on | |
8fe802e8 RM |
143 | the read half of a pipe on which nothing will be written. */ |
144 | cb1.aio_fildes = piped[0]; | |
8b8cc76f UD |
145 | cb1.aio_offset = 0; |
146 | cb1.aio_buf = buff; | |
147 | cb1.aio_nbytes = BYTES; | |
148 | cb1.aio_reqprio = 0; | |
149 | cb1.aio_sigevent.sigev_notify = SIGEV_NONE; | |
150 | ||
151 | r = aio_read (&cb1); | |
152 | if (r != 0) | |
153 | error (1, errno, "reading from file"); | |
154 | ||
155 | /* Now call aio_suspend() with the two reads. It should return | |
156 | * immediately according to the POSIX spec. | |
157 | */ | |
158 | list[0] = &cb0; | |
159 | list[1] = &cb1; | |
160 | timeout.tv_sec = 3; | |
161 | timeout.tv_nsec = 0; | |
162 | r = aio_suspend ((const struct aiocb * const *) list, ELEMS, &timeout); | |
163 | ||
164 | if (r == -1 && errno == EAGAIN) | |
165 | { | |
166 | puts ("aio_suspend([done,blocked],2,3) suspended thread"); | |
167 | ++result; | |
168 | } | |
b0898d85 | 169 | |
696efd11 RM |
170 | /* Note that CB1 is still pending, and so cannot be an auto variable. |
171 | Thus we also test that exiting with an outstanding request works. */ | |
8b8cc76f UD |
172 | } |
173 | ||
174 | return result; | |
175 | } | |
176 | ||
177 | #include "../test-skeleton.c" |