1 /* Tests for AIO in librt.
2 Copyright (C) 1998, 2000, 2002, 2006 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
6 The GNU C Library is free software; you can redistribute it and/or
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.
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
14 Lesser General Public License for more details.
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
31 /* Prototype for our test function. */
32 extern void do_prepare (int argc
, char *argv
[]);
33 extern int do_test (int argc
, char *argv
[]);
35 /* We have a preparation function. */
36 #define PREPARE do_prepare
38 /* We might need a bit longer timeout. */
39 #define TIMEOUT 20 /* sec */
41 /* This defines the `main' function and some more. */
42 #include <test-skeleton.c>
45 /* These are for the temporary file we generate. */
52 do_prepare (int argc
, char *argv
[])
56 name_len
= strlen (test_dir
);
57 name
= malloc (name_len
+ sizeof ("/aioXXXXXX"));
58 mempcpy (mempcpy (name
, test_dir
, name_len
),
59 "/aioXXXXXX", sizeof ("/aioXXXXXX"));
62 /* Open our test file. */
65 error (EXIT_FAILURE
, errno
, "cannot open test file `%s'", name
);
67 int sz
= set_o_direct (fd
);
71 printf ("Using O_DIRECT with block size %d\n", blksz
);
77 test_file (const void *buf
, size_t size
, int fd
, const char *msg
)
83 if (fstat (fd
, &st
) < 0)
85 error (0, errno
, "%s: failed stat", msg
);
89 if (st
.st_size
!= (off_t
) size
)
91 error (0, errno
, "%s: wrong size: %lu, should be %lu",
92 msg
, (unsigned long int) st
.st_size
, (unsigned long int) size
);
96 if (pread (fd
, tmp
, size
, 0) != (ssize_t
) size
)
98 error (0, errno
, "%s: failed pread", msg
);
102 if (memcmp (buf
, tmp
, size
) != 0)
104 error (0, errno
, "%s: failed comparison", msg
);
108 printf ("%s test ok\n", msg
);
115 do_wait (struct aiocb
**cbp
, size_t nent
, int allowed_err
)
123 aio_suspend ((const struct aiocb
*const *) cbp
, nent
, NULL
);
125 for (cnt
= 0; cnt
< nent
; ++cnt
)
126 if (cbp
[cnt
] != NULL
)
128 if (aio_error (cbp
[cnt
]) == EINPROGRESS
)
132 if (aio_return (cbp
[cnt
]) == -1
134 || aio_error (cbp
[cnt
]) != allowed_err
))
136 error (0, aio_error (cbp
[cnt
]), "Operation failed\n");
150 do_test (int argc
, char *argv
[])
152 struct aiocb cbs
[10];
153 struct aiocb cbs_fsync
;
154 struct aiocb
*cbp
[10];
155 struct aiocb
*cbp_fsync
[1];
160 buf
= mmap (NULL
, 20 * blksz
, PROT_READ
| PROT_WRITE
, MAP_PRIVATE
| MAP_ANON
, -1, 0);
161 tmpbuf
= buf
+ 10 * blksz
;
162 if (buf
== MAP_FAILED
)
164 error (0, errno
, "mmap failed");
169 for (cnt
= 0; cnt
< 10; ++cnt
)
171 cbs
[cnt
].aio_fildes
= fd
;
172 cbs
[cnt
].aio_reqprio
= 0;
173 cbs
[cnt
].aio_buf
= memset (&buf
[cnt
* blksz
], '0' + cnt
, blksz
);
174 cbs
[cnt
].aio_nbytes
= blksz
;
175 cbs
[cnt
].aio_offset
= cnt
* blksz
;
176 cbs
[cnt
].aio_sigevent
.sigev_notify
= SIGEV_NONE
;
178 cbp
[cnt
] = &cbs
[cnt
];
181 /* First a simple test. */
182 for (cnt
= 10; cnt
> 0; )
183 if (aio_write (cbp
[--cnt
]) < 0 && errno
== ENOSYS
)
185 error (0, 0, "no aio support in this configuration");
188 /* Wait 'til the results are there. */
189 result
|= do_wait (cbp
, 10, 0);
191 result
|= test_file (buf
, 10 * blksz
, fd
, "aio_write");
193 /* Read now as we've written it. */
194 memset (buf
, '\0', 10 * blksz
);
195 /* Issue the commands. */
196 for (cnt
= 10; cnt
> 0; )
199 cbp
[cnt
] = &cbs
[cnt
];
202 /* Wait 'til the results are there. */
203 result
|= do_wait (cbp
, 10, 0);
205 for (cnt
= 0; cnt
< 10 * blksz
; ++cnt
)
206 if (buf
[cnt
] != '0' + (cnt
/ blksz
))
209 error (0, 0, "comparison failed for aio_read test");
213 if (cnt
== 10 * blksz
)
214 puts ("aio_read test ok");
216 /* Remove the test file contents. */
217 if (ftruncate (fd
, 0) < 0)
219 error (0, errno
, "ftruncate failed\n");
223 /* Test lio_listio. */
224 for (cnt
= 0; cnt
< 10; ++cnt
)
226 cbs
[cnt
].aio_lio_opcode
= LIO_WRITE
;
227 cbp
[cnt
] = &cbs
[cnt
];
229 /* Issue the command. */
230 lio_listio (LIO_WAIT
, cbp
, 10, NULL
);
231 /* ...and immediately test it since we started it in wait mode. */
232 result
|= test_file (buf
, 10 * blksz
, fd
, "lio_listio (write)");
234 /* Test aio_fsync. */
235 cbs_fsync
.aio_fildes
= fd
;
236 cbs_fsync
.aio_sigevent
.sigev_notify
= SIGEV_NONE
;
237 cbp_fsync
[0] = &cbs_fsync
;
239 /* Remove the test file contents first. */
240 if (ftruncate (fd
, 0) < 0)
242 error (0, errno
, "ftruncate failed\n");
247 for (cnt
= 10; cnt
> 0; )
248 aio_write (cbp
[--cnt
]);
250 if (aio_fsync (O_SYNC
, &cbs_fsync
) < 0)
252 error (0, errno
, "aio_fsync failed\n");
255 result
|= do_wait (cbp_fsync
, 1, 0);
257 /* ...and test since all data should be on disk now. */
258 result
|= test_file (buf
, 10 * blksz
, fd
, "aio_fsync (aio_write)");
260 /* Test aio_cancel. */
261 /* Remove the test file contents first. */
262 if (ftruncate (fd
, 0) < 0)
264 error (0, errno
, "ftruncate failed\n");
269 for (cnt
= 10; cnt
> 0; )
270 aio_write (cbp
[--cnt
]);
272 /* Cancel all requests. */
273 if (aio_cancel (fd
, NULL
) == -1)
274 printf ("aio_cancel (fd, NULL) cannot cancel anything\n");
276 result
|= do_wait (cbp
, 10, ECANCELED
);
278 /* Another test for aio_cancel. */
279 /* Remove the test file contents first. */
280 if (ftruncate (fd
, 0) < 0)
282 error (0, errno
, "ftruncate failed\n");
287 for (cnt
= 10; cnt
> 0; )
290 cbp
[cnt
] = &cbs
[cnt
];
291 aio_write (cbp
[cnt
]);
295 /* Cancel all requests. */
296 for (cnt
= 10; cnt
> 0; )
297 if (aio_cancel (fd
, cbp
[--cnt
]) == -1)
298 /* This is not an error. The request can simply be finished. */
299 printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt
);
302 result
|= do_wait (cbp
, 10, ECANCELED
);