about summary refs log tree commit diff
path: root/rt/tst-aio64.c
blob: dfae2c7a096d162d50f6e28936f49fa1cf6579c5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
/* Tests for 64bit AIO in librt.
   Copyright (C) 1998-2024 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#define _LARGEFILE_SOURCE 1
#include <aio.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>


/* Prototype for our test function.  */
extern void do_prepare (int argc, char *argv[]);
extern int do_test (int argc, char *argv[]);

/* We have a preparation function.  */
#define PREPARE do_prepare

/* This defines the `main' function and some more.  */
#include <test-skeleton.c>


/* These are for the temporary file we generate.  */
char *name;
int fd;

void
do_prepare (int argc, char *argv[])
{
  size_t name_len;

  name_len = strlen (test_dir);
  name = xmalloc (name_len + sizeof ("/aioXXXXXX"));
  mempcpy (mempcpy (name, test_dir, name_len),
	   "/aioXXXXXX", sizeof ("/aioXXXXXX"));

  /* Open our test file.   */
  fd = mkstemp (name);
  if (fd == -1)
    error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
  add_temp_file (name);
}


static int
test_file (const void *buf, size_t size, int fd, const char *msg)
{
  struct stat st;
  char tmp[size];

  errno = 0;
  if (fstat (fd, &st) < 0)
    {
      error (0, errno, "%s: failed stat", msg);
      return 1;
    }

  if (st.st_size != (off_t) size)
    {
      error (0, errno, "%s: wrong size: %lu, should be %lu",
	     msg, (unsigned long int) st.st_size, (unsigned long int) size);
      return 1;
    }

  if (pread (fd, tmp, size, 0) != (ssize_t) size)
    {
      error (0, errno, "%s: failed pread", msg);
      return 1;
    }

  if (memcmp (buf, tmp, size) != 0)
    {
      error (0, errno, "%s: failed comparison", msg);
      return 1;
    }

  printf ("%s test ok\n", msg);

  return 0;
}


static int
do_wait (struct aiocb64 **cbp, size_t nent, int allowed_err)
{
  int go_on;
  size_t cnt;
  int result = 0;

  do
    {
      aio_suspend64 ((const struct aiocb64 *const *) cbp, nent, NULL);
      go_on = 0;
      for (cnt = 0; cnt < nent; ++cnt)
	if (cbp[cnt] != NULL)
	  {
	    if (aio_error64 (cbp[cnt]) == EINPROGRESS)
	      go_on = 1;
	    else
	      {
		if (aio_return64 (cbp[cnt]) == -1
		    && (allowed_err == 0
			|| aio_error64 (cbp[cnt]) != allowed_err))
		  {
		    error (0, aio_error64 (cbp[cnt]), "Operation failed\n");
		    result = 1;
		  }
		cbp[cnt] = NULL;
	      }
	  }
    }
  while (go_on);

  return result;
}


int
do_test (int argc, char *argv[])
{
  struct aiocb64 cbs[10];
  struct aiocb64 cbs_fsync;
  struct aiocb64 *cbp[10];
  struct aiocb64 *cbp_fsync[1];
  char buf[1000];
  size_t cnt;
  int result = 0;

  /* Preparation.  */
  for (cnt = 0; cnt < 10; ++cnt)
    {
      cbs[cnt].aio_fildes = fd;
      cbs[cnt].aio_reqprio = 0;
      cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
      cbs[cnt].aio_nbytes = 100;
      cbs[cnt].aio_offset = cnt * 100;
      cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;

      cbp[cnt] = &cbs[cnt];
    }

  /* First a simple test.  */
  for (cnt = 10; cnt > 0; )
    if (aio_write64 (cbp[--cnt]) < 0 && errno == ENOSYS)
      {
	error (0, 0, "no aio support in this configuration");
	return 0;
      }
  /* Wait 'til the results are there.  */
  result |= do_wait (cbp, 10, 0);
  /* Test this.  */
  result |= test_file (buf, sizeof (buf), fd, "aio_write");

  /* Read now as we've written it.  */
  memset (buf, '\0', sizeof (buf));
  /* Issue the commands.  */
  for (cnt = 10; cnt > 0; )
    {
      --cnt;
      cbp[cnt] = &cbs[cnt];
      aio_read64 (cbp[cnt]);
    }
  /* Wait 'til the results are there.  */
  result |= do_wait (cbp, 10, 0);
  /* Test this.  */
  for (cnt = 0; cnt < 1000; ++cnt)
    if (buf[cnt] != '0' + (cnt / 100))
      {
	result = 1;
	error (0, 0, "comparison failed for aio_read test");
	break;
      }

  if (cnt == 1000)
    puts ("aio_read test ok");

  /* Remove the test file contents.  */
  if (ftruncate64 (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Test lio_listio.  */
  for (cnt = 0; cnt < 10; ++cnt)
    {
      cbs[cnt].aio_lio_opcode = LIO_WRITE;
      cbp[cnt] = &cbs[cnt];
    }
  /* Issue the command.  */
  lio_listio64 (LIO_WAIT, cbp, 10, NULL);
  /* ...and immediately test it since we started it in wait mode.  */
  result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)");

  /* Test aio_fsync.  */
  cbs_fsync.aio_fildes = fd;
  cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE;
  cbp_fsync[0] = &cbs_fsync;

  /* Remove the test file contents first.  */
  if (ftruncate64 (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Write again.  */
  for (cnt = 10; cnt > 0; )
    aio_write64 (cbp[--cnt]);

  if (aio_fsync64 (O_SYNC, &cbs_fsync) < 0)
    {
      error (0, errno, "aio_fsync failed\n");
      result = 1;
    }
  result |= do_wait (cbp_fsync, 1, 0);

  /* ...and test since all data should be on disk now.  */
  result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)");

  /* Test aio_cancel.  */
  /* Remove the test file contents first.  */
  if (ftruncate64 (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Write again.  */
  for (cnt = 10; cnt > 0; )
    aio_write64 (cbp[--cnt]);

  /* Cancel all requests.  */
  if (aio_cancel64 (fd, NULL) == -1)
    printf ("aio_cancel64 (fd, NULL) cannot cancel anything\n");

  result |= do_wait (cbp, 10, ECANCELED);

  /* Another test for aio_cancel.  */
  /* Remove the test file contents first.  */
  if (ftruncate64 (fd, 0) < 0)
    {
      error (0, errno, "ftruncate failed\n");
      result = 1;
    }

  /* Write again.  */
  for (cnt = 10; cnt > 0; )
    {
      --cnt;
      cbp[cnt] = &cbs[cnt];
      aio_write64 (cbp[cnt]);
    }
  puts ("finished3");

  /* Cancel all requests.  */
  for (cnt = 10; cnt > 0; )
    if (aio_cancel64 (fd, cbp[--cnt]) == -1)
      /* This is not an error.  The request can simply be finished.  */
      printf ("aio_cancel64 (fd, cbp[%zd]) cannot be canceled\n", cnt);
  puts ("finished2");

  result |= do_wait (cbp, 10, ECANCELED);

  puts ("finished");

  return result;
}