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b9337b6a | 1 | /* Tests for AIO in librt. |
d614a753 | 2 | Copyright (C) 1998-2020 Free Software Foundation, Inc. |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
b9337b6a UD |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
b9337b6a UD |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
b9337b6a | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
b9337b6a UD |
19 | |
20 | #include <aio.h> | |
21 | #include <errno.h> | |
22 | #include <error.h> | |
84ad622b | 23 | #include <fcntl.h> |
b9337b6a UD |
24 | #include <stdlib.h> |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | #include <sys/stat.h> | |
28 | ||
29 | ||
310b3460 UD |
30 | /* Prototype for our test function. */ |
31 | extern void do_prepare (int argc, char *argv[]); | |
b9337b6a UD |
32 | extern int do_test (int argc, char *argv[]); |
33 | ||
310b3460 UD |
34 | /* We have a preparation function. */ |
35 | #define PREPARE do_prepare | |
b9337b6a | 36 | |
b9337b6a UD |
37 | /* This defines the `main' function and some more. */ |
38 | #include <test-skeleton.c> | |
39 | ||
40 | ||
310b3460 UD |
41 | /* These are for the temporary file we generate. */ |
42 | char *name; | |
43 | int fd; | |
44 | ||
45 | void | |
46 | do_prepare (int argc, char *argv[]) | |
47 | { | |
30aa5785 | 48 | size_t name_len; |
310b3460 UD |
49 | |
50 | name_len = strlen (test_dir); | |
850c6760 | 51 | name = xmalloc (name_len + sizeof ("/aioXXXXXX")); |
310b3460 UD |
52 | mempcpy (mempcpy (name, test_dir, name_len), |
53 | "/aioXXXXXX", sizeof ("/aioXXXXXX")); | |
310b3460 UD |
54 | |
55 | /* Open our test file. */ | |
56 | fd = mkstemp (name); | |
57 | if (fd == -1) | |
58 | error (EXIT_FAILURE, errno, "cannot open test file `%s'", name); | |
cf145565 | 59 | add_temp_file (name); |
310b3460 UD |
60 | } |
61 | ||
62 | ||
f71bc3ba | 63 | static int |
b9337b6a UD |
64 | test_file (const void *buf, size_t size, int fd, const char *msg) |
65 | { | |
66 | struct stat st; | |
67 | char tmp[size]; | |
68 | ||
69 | errno = 0; | |
70 | if (fstat (fd, &st) < 0) | |
71 | { | |
72 | error (0, errno, "%s: failed stat", msg); | |
73 | return 1; | |
74 | } | |
75 | ||
57b36a0a | 76 | if (st.st_size != (off_t) size) |
b9337b6a UD |
77 | { |
78 | error (0, errno, "%s: wrong size: %lu, should be %lu", | |
79 | msg, (unsigned long int) st.st_size, (unsigned long int) size); | |
80 | return 1; | |
81 | } | |
82 | ||
57b36a0a | 83 | if (pread (fd, tmp, size, 0) != (ssize_t) size) |
b9337b6a | 84 | { |
9881cbf8 | 85 | error (0, errno, "%s: failed pread", msg); |
b9337b6a UD |
86 | return 1; |
87 | } | |
88 | ||
89 | if (memcmp (buf, tmp, size) != 0) | |
90 | { | |
91 | error (0, errno, "%s: failed comparison", msg); | |
92 | return 1; | |
93 | } | |
94 | ||
6b9c2e67 | 95 | printf ("%s test ok\n", msg); |
b9337b6a UD |
96 | |
97 | return 0; | |
98 | } | |
99 | ||
100 | ||
f71bc3ba | 101 | static int |
92806ee9 | 102 | do_wait (struct aiocb **cbp, size_t nent, int allowed_err) |
6b9c2e67 UD |
103 | { |
104 | int go_on; | |
92806ee9 UD |
105 | size_t cnt; |
106 | int result = 0; | |
107 | ||
6b9c2e67 UD |
108 | do |
109 | { | |
6b9c2e67 UD |
110 | aio_suspend ((const struct aiocb *const *) cbp, nent, NULL); |
111 | go_on = 0; | |
112 | for (cnt = 0; cnt < nent; ++cnt) | |
92806ee9 UD |
113 | if (cbp[cnt] != NULL) |
114 | { | |
115 | if (aio_error (cbp[cnt]) == EINPROGRESS) | |
116 | go_on = 1; | |
117 | else | |
118 | { | |
119 | if (aio_return (cbp[cnt]) == -1 | |
120 | && (allowed_err == 0 | |
121 | || aio_error (cbp[cnt]) != allowed_err)) | |
122 | { | |
123 | error (0, aio_error (cbp[cnt]), "Operation failed\n"); | |
124 | result = 1; | |
125 | } | |
126 | cbp[cnt] = NULL; | |
127 | } | |
128 | } | |
6b9c2e67 UD |
129 | } |
130 | while (go_on); | |
92806ee9 UD |
131 | |
132 | return result; | |
6b9c2e67 UD |
133 | } |
134 | ||
135 | ||
b9337b6a UD |
136 | int |
137 | do_test (int argc, char *argv[]) | |
138 | { | |
b9337b6a | 139 | struct aiocb cbs[10]; |
92806ee9 | 140 | struct aiocb cbs_fsync; |
b9337b6a | 141 | struct aiocb *cbp[10]; |
92806ee9 | 142 | struct aiocb *cbp_fsync[1]; |
b9337b6a UD |
143 | char buf[1000]; |
144 | size_t cnt; | |
b9337b6a | 145 | int result = 0; |
b9337b6a | 146 | |
b9337b6a UD |
147 | /* Preparation. */ |
148 | for (cnt = 0; cnt < 10; ++cnt) | |
149 | { | |
150 | cbs[cnt].aio_fildes = fd; | |
151 | cbs[cnt].aio_reqprio = 0; | |
152 | cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100); | |
153 | cbs[cnt].aio_nbytes = 100; | |
154 | cbs[cnt].aio_offset = cnt * 100; | |
155 | cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE; | |
156 | ||
157 | cbp[cnt] = &cbs[cnt]; | |
158 | } | |
159 | ||
160 | /* First a simple test. */ | |
161 | for (cnt = 10; cnt > 0; ) | |
ffa8d2a0 RM |
162 | if (aio_write (cbp[--cnt]) < 0 && errno == ENOSYS) |
163 | { | |
164 | error (0, 0, "no aio support in this configuration"); | |
165 | return 0; | |
166 | } | |
b9337b6a | 167 | /* Wait 'til the results are there. */ |
92806ee9 | 168 | result |= do_wait (cbp, 10, 0); |
6b9c2e67 UD |
169 | /* Test this. */ |
170 | result |= test_file (buf, sizeof (buf), fd, "aio_write"); | |
171 | ||
172 | /* Read now as we've written it. */ | |
173 | memset (buf, '\0', sizeof (buf)); | |
174 | /* Issue the commands. */ | |
175 | for (cnt = 10; cnt > 0; ) | |
b9337b6a | 176 | { |
6b9c2e67 UD |
177 | --cnt; |
178 | cbp[cnt] = &cbs[cnt]; | |
179 | aio_read (cbp[cnt]); | |
b9337b6a | 180 | } |
6b9c2e67 | 181 | /* Wait 'til the results are there. */ |
92806ee9 | 182 | result |= do_wait (cbp, 10, 0); |
b9337b6a | 183 | /* Test this. */ |
6b9c2e67 UD |
184 | for (cnt = 0; cnt < 1000; ++cnt) |
185 | if (buf[cnt] != '0' + (cnt / 100)) | |
186 | { | |
187 | result = 1; | |
188 | error (0, 0, "comparison failed for aio_read test"); | |
189 | break; | |
190 | } | |
191 | ||
192 | if (cnt == 1000) | |
193 | puts ("aio_read test ok"); | |
194 | ||
195 | /* Remove the test file contents. */ | |
196 | if (ftruncate (fd, 0) < 0) | |
197 | { | |
198 | error (0, errno, "ftruncate failed\n"); | |
199 | result = 1; | |
200 | } | |
201 | ||
202 | /* Test lio_listio. */ | |
203 | for (cnt = 0; cnt < 10; ++cnt) | |
204 | { | |
205 | cbs[cnt].aio_lio_opcode = LIO_WRITE; | |
206 | cbp[cnt] = &cbs[cnt]; | |
207 | } | |
208 | /* Issue the command. */ | |
209 | lio_listio (LIO_WAIT, cbp, 10, NULL); | |
210 | /* ...and immediately test it since we started it in wait mode. */ | |
211 | result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)"); | |
b9337b6a | 212 | |
92806ee9 UD |
213 | /* Test aio_fsync. */ |
214 | cbs_fsync.aio_fildes = fd; | |
215 | cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE; | |
216 | cbp_fsync[0] = &cbs_fsync; | |
217 | ||
218 | /* Remove the test file contents first. */ | |
219 | if (ftruncate (fd, 0) < 0) | |
220 | { | |
221 | error (0, errno, "ftruncate failed\n"); | |
222 | result = 1; | |
223 | } | |
224 | ||
225 | /* Write again. */ | |
226 | for (cnt = 10; cnt > 0; ) | |
227 | aio_write (cbp[--cnt]); | |
228 | ||
229 | if (aio_fsync (O_SYNC, &cbs_fsync) < 0) | |
230 | { | |
231 | error (0, errno, "aio_fsync failed\n"); | |
232 | result = 1; | |
233 | } | |
234 | result |= do_wait (cbp_fsync, 1, 0); | |
235 | ||
236 | /* ...and test since all data should be on disk now. */ | |
237 | result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)"); | |
238 | ||
239 | /* Test aio_cancel. */ | |
240 | /* Remove the test file contents first. */ | |
241 | if (ftruncate (fd, 0) < 0) | |
242 | { | |
243 | error (0, errno, "ftruncate failed\n"); | |
244 | result = 1; | |
245 | } | |
246 | ||
247 | /* Write again. */ | |
248 | for (cnt = 10; cnt > 0; ) | |
249 | aio_write (cbp[--cnt]); | |
250 | ||
251 | /* Cancel all requests. */ | |
252 | if (aio_cancel (fd, NULL) == -1) | |
253 | printf ("aio_cancel (fd, NULL) cannot cancel anything\n"); | |
254 | ||
255 | result |= do_wait (cbp, 10, ECANCELED); | |
256 | ||
257 | /* Another test for aio_cancel. */ | |
258 | /* Remove the test file contents first. */ | |
259 | if (ftruncate (fd, 0) < 0) | |
260 | { | |
261 | error (0, errno, "ftruncate failed\n"); | |
262 | result = 1; | |
263 | } | |
264 | ||
265 | /* Write again. */ | |
266 | for (cnt = 10; cnt > 0; ) | |
267 | { | |
268 | --cnt; | |
269 | cbp[cnt] = &cbs[cnt]; | |
270 | aio_write (cbp[cnt]); | |
271 | } | |
272 | puts ("finished3"); | |
273 | ||
274 | /* Cancel all requests. */ | |
275 | for (cnt = 10; cnt > 0; ) | |
276 | if (aio_cancel (fd, cbp[--cnt]) == -1) | |
277 | /* This is not an error. The request can simply be finished. */ | |
278 | printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt); | |
279 | puts ("finished2"); | |
280 | ||
281 | result |= do_wait (cbp, 10, ECANCELED); | |
282 | ||
283 | puts ("finished"); | |
284 | ||
b9337b6a UD |
285 | return result; |
286 | } |