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b9337b6a | 1 | /* Tests for AIO in librt. |
ffa8d2a0 | 2 | Copyright (C) 1998,2000,02 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 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
b9337b6a UD |
20 | |
21 | #include <aio.h> | |
22 | #include <errno.h> | |
23 | #include <error.h> | |
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 UD |
36 | |
37 | /* We might need a bit longer timeout. */ | |
38 | #define TIMEOUT 20 /* sec */ | |
39 | ||
40 | /* This defines the `main' function and some more. */ | |
41 | #include <test-skeleton.c> | |
42 | ||
43 | ||
310b3460 UD |
44 | /* These are for the temporary file we generate. */ |
45 | char *name; | |
46 | int fd; | |
47 | ||
48 | void | |
49 | do_prepare (int argc, char *argv[]) | |
50 | { | |
a334319f | 51 | char name_len; |
310b3460 UD |
52 | |
53 | name_len = strlen (test_dir); | |
54 | name = malloc (name_len + sizeof ("/aioXXXXXX")); | |
55 | mempcpy (mempcpy (name, test_dir, name_len), | |
56 | "/aioXXXXXX", sizeof ("/aioXXXXXX")); | |
57 | add_temp_file (name); | |
58 | ||
59 | /* Open our test file. */ | |
60 | fd = mkstemp (name); | |
61 | if (fd == -1) | |
62 | error (EXIT_FAILURE, errno, "cannot open test file `%s'", name); | |
63 | } | |
64 | ||
65 | ||
f71bc3ba | 66 | static int |
b9337b6a UD |
67 | test_file (const void *buf, size_t size, int fd, const char *msg) |
68 | { | |
69 | struct stat st; | |
70 | char tmp[size]; | |
71 | ||
72 | errno = 0; | |
73 | if (fstat (fd, &st) < 0) | |
74 | { | |
75 | error (0, errno, "%s: failed stat", msg); | |
76 | return 1; | |
77 | } | |
78 | ||
57b36a0a | 79 | if (st.st_size != (off_t) size) |
b9337b6a UD |
80 | { |
81 | error (0, errno, "%s: wrong size: %lu, should be %lu", | |
82 | msg, (unsigned long int) st.st_size, (unsigned long int) size); | |
83 | return 1; | |
84 | } | |
85 | ||
57b36a0a | 86 | if (pread (fd, tmp, size, 0) != (ssize_t) size) |
b9337b6a | 87 | { |
9881cbf8 | 88 | error (0, errno, "%s: failed pread", msg); |
b9337b6a UD |
89 | return 1; |
90 | } | |
91 | ||
92 | if (memcmp (buf, tmp, size) != 0) | |
93 | { | |
94 | error (0, errno, "%s: failed comparison", msg); | |
95 | return 1; | |
96 | } | |
97 | ||
6b9c2e67 | 98 | printf ("%s test ok\n", msg); |
b9337b6a UD |
99 | |
100 | return 0; | |
101 | } | |
102 | ||
103 | ||
f71bc3ba | 104 | static int |
92806ee9 | 105 | do_wait (struct aiocb **cbp, size_t nent, int allowed_err) |
6b9c2e67 UD |
106 | { |
107 | int go_on; | |
92806ee9 UD |
108 | size_t cnt; |
109 | int result = 0; | |
110 | ||
6b9c2e67 UD |
111 | do |
112 | { | |
6b9c2e67 UD |
113 | aio_suspend ((const struct aiocb *const *) cbp, nent, NULL); |
114 | go_on = 0; | |
115 | for (cnt = 0; cnt < nent; ++cnt) | |
92806ee9 UD |
116 | if (cbp[cnt] != NULL) |
117 | { | |
118 | if (aio_error (cbp[cnt]) == EINPROGRESS) | |
119 | go_on = 1; | |
120 | else | |
121 | { | |
122 | if (aio_return (cbp[cnt]) == -1 | |
123 | && (allowed_err == 0 | |
124 | || aio_error (cbp[cnt]) != allowed_err)) | |
125 | { | |
126 | error (0, aio_error (cbp[cnt]), "Operation failed\n"); | |
127 | result = 1; | |
128 | } | |
129 | cbp[cnt] = NULL; | |
130 | } | |
131 | } | |
6b9c2e67 UD |
132 | } |
133 | while (go_on); | |
92806ee9 UD |
134 | |
135 | return result; | |
6b9c2e67 UD |
136 | } |
137 | ||
138 | ||
b9337b6a UD |
139 | int |
140 | do_test (int argc, char *argv[]) | |
141 | { | |
b9337b6a | 142 | struct aiocb cbs[10]; |
92806ee9 | 143 | struct aiocb cbs_fsync; |
b9337b6a | 144 | struct aiocb *cbp[10]; |
92806ee9 | 145 | struct aiocb *cbp_fsync[1]; |
b9337b6a UD |
146 | char buf[1000]; |
147 | size_t cnt; | |
b9337b6a | 148 | int result = 0; |
b9337b6a | 149 | |
b9337b6a UD |
150 | /* Preparation. */ |
151 | for (cnt = 0; cnt < 10; ++cnt) | |
152 | { | |
153 | cbs[cnt].aio_fildes = fd; | |
154 | cbs[cnt].aio_reqprio = 0; | |
155 | cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100); | |
156 | cbs[cnt].aio_nbytes = 100; | |
157 | cbs[cnt].aio_offset = cnt * 100; | |
158 | cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE; | |
159 | ||
160 | cbp[cnt] = &cbs[cnt]; | |
161 | } | |
162 | ||
163 | /* First a simple test. */ | |
164 | for (cnt = 10; cnt > 0; ) | |
ffa8d2a0 RM |
165 | if (aio_write (cbp[--cnt]) < 0 && errno == ENOSYS) |
166 | { | |
167 | error (0, 0, "no aio support in this configuration"); | |
168 | return 0; | |
169 | } | |
b9337b6a | 170 | /* Wait 'til the results are there. */ |
92806ee9 | 171 | result |= do_wait (cbp, 10, 0); |
6b9c2e67 UD |
172 | /* Test this. */ |
173 | result |= test_file (buf, sizeof (buf), fd, "aio_write"); | |
174 | ||
175 | /* Read now as we've written it. */ | |
176 | memset (buf, '\0', sizeof (buf)); | |
177 | /* Issue the commands. */ | |
178 | for (cnt = 10; cnt > 0; ) | |
b9337b6a | 179 | { |
6b9c2e67 UD |
180 | --cnt; |
181 | cbp[cnt] = &cbs[cnt]; | |
182 | aio_read (cbp[cnt]); | |
b9337b6a | 183 | } |
6b9c2e67 | 184 | /* Wait 'til the results are there. */ |
92806ee9 | 185 | result |= do_wait (cbp, 10, 0); |
b9337b6a | 186 | /* Test this. */ |
6b9c2e67 UD |
187 | for (cnt = 0; cnt < 1000; ++cnt) |
188 | if (buf[cnt] != '0' + (cnt / 100)) | |
189 | { | |
190 | result = 1; | |
191 | error (0, 0, "comparison failed for aio_read test"); | |
192 | break; | |
193 | } | |
194 | ||
195 | if (cnt == 1000) | |
196 | puts ("aio_read test ok"); | |
197 | ||
198 | /* Remove the test file contents. */ | |
199 | if (ftruncate (fd, 0) < 0) | |
200 | { | |
201 | error (0, errno, "ftruncate failed\n"); | |
202 | result = 1; | |
203 | } | |
204 | ||
205 | /* Test lio_listio. */ | |
206 | for (cnt = 0; cnt < 10; ++cnt) | |
207 | { | |
208 | cbs[cnt].aio_lio_opcode = LIO_WRITE; | |
209 | cbp[cnt] = &cbs[cnt]; | |
210 | } | |
211 | /* Issue the command. */ | |
212 | lio_listio (LIO_WAIT, cbp, 10, NULL); | |
213 | /* ...and immediately test it since we started it in wait mode. */ | |
214 | result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)"); | |
b9337b6a | 215 | |
92806ee9 UD |
216 | /* Test aio_fsync. */ |
217 | cbs_fsync.aio_fildes = fd; | |
218 | cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE; | |
219 | cbp_fsync[0] = &cbs_fsync; | |
220 | ||
221 | /* Remove the test file contents first. */ | |
222 | if (ftruncate (fd, 0) < 0) | |
223 | { | |
224 | error (0, errno, "ftruncate failed\n"); | |
225 | result = 1; | |
226 | } | |
227 | ||
228 | /* Write again. */ | |
229 | for (cnt = 10; cnt > 0; ) | |
230 | aio_write (cbp[--cnt]); | |
231 | ||
232 | if (aio_fsync (O_SYNC, &cbs_fsync) < 0) | |
233 | { | |
234 | error (0, errno, "aio_fsync failed\n"); | |
235 | result = 1; | |
236 | } | |
237 | result |= do_wait (cbp_fsync, 1, 0); | |
238 | ||
239 | /* ...and test since all data should be on disk now. */ | |
240 | result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)"); | |
241 | ||
242 | /* Test aio_cancel. */ | |
243 | /* Remove the test file contents first. */ | |
244 | if (ftruncate (fd, 0) < 0) | |
245 | { | |
246 | error (0, errno, "ftruncate failed\n"); | |
247 | result = 1; | |
248 | } | |
249 | ||
250 | /* Write again. */ | |
251 | for (cnt = 10; cnt > 0; ) | |
252 | aio_write (cbp[--cnt]); | |
253 | ||
254 | /* Cancel all requests. */ | |
255 | if (aio_cancel (fd, NULL) == -1) | |
256 | printf ("aio_cancel (fd, NULL) cannot cancel anything\n"); | |
257 | ||
258 | result |= do_wait (cbp, 10, ECANCELED); | |
259 | ||
260 | /* Another test for aio_cancel. */ | |
261 | /* Remove the test file contents first. */ | |
262 | if (ftruncate (fd, 0) < 0) | |
263 | { | |
264 | error (0, errno, "ftruncate failed\n"); | |
265 | result = 1; | |
266 | } | |
267 | ||
268 | /* Write again. */ | |
269 | for (cnt = 10; cnt > 0; ) | |
270 | { | |
271 | --cnt; | |
272 | cbp[cnt] = &cbs[cnt]; | |
273 | aio_write (cbp[cnt]); | |
274 | } | |
275 | puts ("finished3"); | |
276 | ||
277 | /* Cancel all requests. */ | |
278 | for (cnt = 10; cnt > 0; ) | |
279 | if (aio_cancel (fd, cbp[--cnt]) == -1) | |
280 | /* This is not an error. The request can simply be finished. */ | |
281 | printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt); | |
282 | puts ("finished2"); | |
283 | ||
284 | result |= do_wait (cbp, 10, ECANCELED); | |
285 | ||
286 | puts ("finished"); | |
287 | ||
b9337b6a UD |
288 | return result; |
289 | } |