1 | /* Tests for 64bit AIO in librt. |
2 | Copyright (C) 1998-2022 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 | #define _LARGEFILE_SOURCE 1 |
20 | #include <aio.h> |
21 | #include <errno.h> |
22 | #include <error.h> |
23 | #include <fcntl.h> |
24 | #include <stdlib.h> |
25 | #include <string.h> |
26 | #include <unistd.h> |
27 | #include <sys/stat.h> |
28 | |
29 | |
30 | /* Prototype for our test function. */ |
31 | extern void do_prepare (int argc, char *argv[]); |
32 | extern int do_test (int argc, char *argv[]); |
33 | |
34 | /* We have a preparation function. */ |
35 | #define PREPARE do_prepare |
36 | |
37 | /* This defines the `main' function and some more. */ |
38 | #include <test-skeleton.c> |
39 | |
40 | |
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 | { |
48 | size_t name_len; |
49 | |
50 | name_len = strlen (test_dir); |
51 | name = xmalloc (n: name_len + sizeof ("/aioXXXXXX" )); |
52 | mempcpy (mempcpy (name, test_dir, name_len), |
53 | "/aioXXXXXX" , sizeof ("/aioXXXXXX" )); |
54 | |
55 | /* Open our test file. */ |
56 | fd = mkstemp (template: name); |
57 | if (fd == -1) |
58 | error (EXIT_FAILURE, errno, format: "cannot open test file `%s'" , name); |
59 | add_temp_file (name); |
60 | } |
61 | |
62 | |
63 | static int |
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: fd, buf: &st) < 0) |
71 | { |
72 | error (status: 0, errno, format: "%s: failed stat" , msg); |
73 | return 1; |
74 | } |
75 | |
76 | if (st.st_size != (off_t) size) |
77 | { |
78 | error (status: 0, errno, format: "%s: wrong size: %lu, should be %lu" , |
79 | msg, (unsigned long int) st.st_size, (unsigned long int) size); |
80 | return 1; |
81 | } |
82 | |
83 | if (pread (fd: fd, buf: tmp, nbytes: size, offset: 0) != (ssize_t) size) |
84 | { |
85 | error (status: 0, errno, format: "%s: failed pread" , msg); |
86 | return 1; |
87 | } |
88 | |
89 | if (memcmp (buf, tmp, size) != 0) |
90 | { |
91 | error (status: 0, errno, format: "%s: failed comparison" , msg); |
92 | return 1; |
93 | } |
94 | |
95 | printf (format: "%s test ok\n" , msg); |
96 | |
97 | return 0; |
98 | } |
99 | |
100 | |
101 | static int |
102 | do_wait (struct aiocb64 **cbp, size_t nent, int allowed_err) |
103 | { |
104 | int go_on; |
105 | size_t cnt; |
106 | int result = 0; |
107 | |
108 | do |
109 | { |
110 | aio_suspend64 (list: (const struct aiocb64 *const *) cbp, nent: nent, NULL); |
111 | go_on = 0; |
112 | for (cnt = 0; cnt < nent; ++cnt) |
113 | if (cbp[cnt] != NULL) |
114 | { |
115 | if (aio_error64 (aiocbp: cbp[cnt]) == EINPROGRESS) |
116 | go_on = 1; |
117 | else |
118 | { |
119 | if (aio_return64 (aiocbp: cbp[cnt]) == -1 |
120 | && (allowed_err == 0 |
121 | || aio_error64 (aiocbp: cbp[cnt]) != allowed_err)) |
122 | { |
123 | error (status: 0, errnum: aio_error64 (aiocbp: cbp[cnt]), format: "Operation failed\n" ); |
124 | result = 1; |
125 | } |
126 | cbp[cnt] = NULL; |
127 | } |
128 | } |
129 | } |
130 | while (go_on); |
131 | |
132 | return result; |
133 | } |
134 | |
135 | |
136 | int |
137 | do_test (int argc, char *argv[]) |
138 | { |
139 | struct aiocb64 cbs[10]; |
140 | struct aiocb64 cbs_fsync; |
141 | struct aiocb64 *cbp[10]; |
142 | struct aiocb64 *cbp_fsync[1]; |
143 | char buf[1000]; |
144 | size_t cnt; |
145 | int result = 0; |
146 | |
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; ) |
162 | if (aio_write64 (aiocbp: cbp[--cnt]) < 0 && errno == ENOSYS) |
163 | { |
164 | error (status: 0, errnum: 0, format: "no aio support in this configuration" ); |
165 | return 0; |
166 | } |
167 | /* Wait 'til the results are there. */ |
168 | result |= do_wait (cbp, nent: 10, allowed_err: 0); |
169 | /* Test this. */ |
170 | result |= test_file (buf, size: sizeof (buf), fd, msg: "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; ) |
176 | { |
177 | --cnt; |
178 | cbp[cnt] = &cbs[cnt]; |
179 | aio_read64 (aiocbp: cbp[cnt]); |
180 | } |
181 | /* Wait 'til the results are there. */ |
182 | result |= do_wait (cbp, nent: 10, allowed_err: 0); |
183 | /* Test this. */ |
184 | for (cnt = 0; cnt < 1000; ++cnt) |
185 | if (buf[cnt] != '0' + (cnt / 100)) |
186 | { |
187 | result = 1; |
188 | error (status: 0, errnum: 0, format: "comparison failed for aio_read test" ); |
189 | break; |
190 | } |
191 | |
192 | if (cnt == 1000) |
193 | puts (s: "aio_read test ok" ); |
194 | |
195 | /* Remove the test file contents. */ |
196 | if (ftruncate64 (fd: fd, length: 0) < 0) |
197 | { |
198 | error (status: 0, errno, format: "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_listio64 (LIO_WAIT, list: cbp, nent: 10, NULL); |
210 | /* ...and immediately test it since we started it in wait mode. */ |
211 | result |= test_file (buf, size: sizeof (buf), fd, msg: "lio_listio (write)" ); |
212 | |
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 (ftruncate64 (fd: fd, length: 0) < 0) |
220 | { |
221 | error (status: 0, errno, format: "ftruncate failed\n" ); |
222 | result = 1; |
223 | } |
224 | |
225 | /* Write again. */ |
226 | for (cnt = 10; cnt > 0; ) |
227 | aio_write64 (aiocbp: cbp[--cnt]); |
228 | |
229 | if (aio_fsync64 (O_SYNC, aiocbp: &cbs_fsync) < 0) |
230 | { |
231 | error (status: 0, errno, format: "aio_fsync failed\n" ); |
232 | result = 1; |
233 | } |
234 | result |= do_wait (cbp: cbp_fsync, nent: 1, allowed_err: 0); |
235 | |
236 | /* ...and test since all data should be on disk now. */ |
237 | result |= test_file (buf, size: sizeof (buf), fd, msg: "aio_fsync (aio_write)" ); |
238 | |
239 | /* Test aio_cancel. */ |
240 | /* Remove the test file contents first. */ |
241 | if (ftruncate64 (fd: fd, length: 0) < 0) |
242 | { |
243 | error (status: 0, errno, format: "ftruncate failed\n" ); |
244 | result = 1; |
245 | } |
246 | |
247 | /* Write again. */ |
248 | for (cnt = 10; cnt > 0; ) |
249 | aio_write64 (aiocbp: cbp[--cnt]); |
250 | |
251 | /* Cancel all requests. */ |
252 | if (aio_cancel64 (fildes: fd, NULL) == -1) |
253 | printf (format: "aio_cancel64 (fd, NULL) cannot cancel anything\n" ); |
254 | |
255 | result |= do_wait (cbp, nent: 10, ECANCELED); |
256 | |
257 | /* Another test for aio_cancel. */ |
258 | /* Remove the test file contents first. */ |
259 | if (ftruncate64 (fd: fd, length: 0) < 0) |
260 | { |
261 | error (status: 0, errno, format: "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_write64 (aiocbp: cbp[cnt]); |
271 | } |
272 | puts (s: "finished3" ); |
273 | |
274 | /* Cancel all requests. */ |
275 | for (cnt = 10; cnt > 0; ) |
276 | if (aio_cancel64 (fildes: fd, aiocbp: cbp[--cnt]) == -1) |
277 | /* This is not an error. The request can simply be finished. */ |
278 | printf (format: "aio_cancel64 (fd, cbp[%Zd]) cannot be canceled\n" , cnt); |
279 | puts (s: "finished2" ); |
280 | |
281 | result |= do_wait (cbp, nent: 10, ECANCELED); |
282 | |
283 | puts (s: "finished" ); |
284 | |
285 | return result; |
286 | } |
287 | |