summaryrefslogtreecommitdiff
path: root/rt/tst-mqueue6.c
blob: ed665b29af371e2158660d53577241747bb983fe (plain)
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
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
/* Test mq_notify.
   Copyright (C) 2004-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.

   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
   <http://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <fcntl.h>
#include <mqueue.h>
#include <limits.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include "tst-mqueue.h"

#if _POSIX_THREADS
# include <pthread.h>

# define mqsend(q) (mqsend) (q, __LINE__)
static int
(mqsend) (mqd_t q, int line)
{
  char c;
  if (mq_send (q, &c, 1, 1) != 0)
    {
      printf ("mq_send on line %d failed with: %m\n", line);
      return 1;
    }
  return 0;
}

# define mqrecv(q) (mqrecv) (q, __LINE__)
static int
(mqrecv) (mqd_t q, int line)
{
  char c;
  ssize_t rets = TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL));
  if (rets != 1)
    {
      if (rets == -1)
	printf ("mq_receive on line %d failed with: %m\n", line);
      else
	printf ("mq_receive on line %d returned %zd != 1\n",
		line, rets);
      return 1;
    }
  return 0;
}

volatile int fct_cnt, fct_err;
size_t fct_guardsize;

static void
fct (union sigval s)
{
  mqd_t q = *(mqd_t *) s.sival_ptr;

  pthread_attr_t nattr;
  int ret = pthread_getattr_np (pthread_self (), &nattr);
  if (ret)
    {
      errno = ret;
      printf ("pthread_getattr_np failed: %m\n");
      fct_err = 1;
    }
  else
    {
      ret = pthread_attr_getguardsize (&nattr, &fct_guardsize);
      if (ret)
	{
	  errno = ret;
	  printf ("pthread_attr_getguardsize failed: %m\n");
	  fct_err = 1;
	}
      if (pthread_attr_destroy (&nattr) != 0)
	{
	  puts ("pthread_attr_destroy failed");
	  fct_err = 1;
	}
    }

  ++fct_cnt;
  fct_err |= mqsend (q);
}

# define TEST_FUNCTION do_test ()
static int
do_test (void)
{
  int result = 0;

  char name[sizeof "/tst-mqueue6-" + sizeof (pid_t) * 3];
  snprintf (name, sizeof (name), "/tst-mqueue6-%u", getpid ());

  struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);

  if (q == (mqd_t) -1)
    {
      printf ("mq_open failed with: %m\n");
      return result;
    }
  else
    add_temp_mq (name);

  pthread_attr_t nattr;
  if (pthread_attr_init (&nattr)
      || pthread_attr_setguardsize (&nattr, 0))
    {
      puts ("pthread_attr_t setup failed");
      result = 1;
    }

  fct_guardsize = 1;

  struct sigevent ev;
  memset (&ev, 0xaa, sizeof (ev));
  ev.sigev_notify = SIGEV_THREAD;
  ev.sigev_notify_function = fct;
  ev.sigev_notify_attributes = &nattr;
  ev.sigev_value.sival_ptr = &q;
  if (mq_notify (q, &ev) != 0)
    {
      printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n");
      result = 1;
    }

  size_t ps = sysconf (_SC_PAGESIZE);
  if (pthread_attr_setguardsize (&nattr, 32 * ps))
    {
      puts ("pthread_attr_t setup failed");
      result = 1;
    }

  if (mq_notify (q, &ev) == 0)
    {
      puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
      result = 1;
    }
  else if (errno != EBUSY)
    {
      printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
      result = 1;
    }

  if (fct_cnt != 0)
    {
      printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__);
      result = 1;
    }

  result |= mqsend (q);

  result |= mqrecv (q);
  result |= mqrecv (q);

  if (fct_cnt != 1)
    {
      printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__);
      result = 1;
    }
  else if (fct_guardsize != 0)
    {
      printf ("fct_guardsize %zd != 0\n", fct_guardsize);
      result = 1;
    }

  if (mq_notify (q, &ev) != 0)
    {
      printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
      result = 1;
    }

  if (mq_notify (q, NULL) != 0)
    {
      printf ("mq_notify (q, NULL) failed with: %m\n");
      result = 1;
    }

  memset (&ev, 0x11, sizeof (ev));
  ev.sigev_notify = SIGEV_THREAD;
  ev.sigev_notify_function = fct;
  ev.sigev_notify_attributes = &nattr;
  ev.sigev_value.sival_ptr = &q;
  if (mq_notify (q, &ev) != 0)
    {
      printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n");
      result = 1;
    }

  if (pthread_attr_setguardsize (&nattr, 0))
    {
      puts ("pthread_attr_t setup failed");
      result = 1;
    }

  if (mq_notify (q, &ev) == 0)
    {
      puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
      result = 1;
    }
  else if (errno != EBUSY)
    {
      printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
      result = 1;
    }

  if (fct_cnt != 1)
    {
      printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__);
      result = 1;
    }

  result |= mqsend (q);

  result |= mqrecv (q);
  result |= mqrecv (q);

  if (fct_cnt != 2)
    {
      printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__);
      result = 1;
    }
  else if (fct_guardsize != 32 * ps)
    {
      printf ("fct_guardsize %zd != %zd\n", fct_guardsize, 32 * ps);
      result = 1;
    }

  if (mq_notify (q, &ev) != 0)
    {
      printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
      result = 1;
    }

  if (mq_notify (q, NULL) != 0)
    {
      printf ("mq_notify (q, NULL) failed with: %m\n");
      result = 1;
    }

  if (pthread_attr_destroy (&nattr) != 0)
    {
      puts ("pthread_attr_destroy failed");
      result = 1;
    }

  if (mq_unlink (name) != 0)
    {
      printf ("mq_unlink failed: %m\n");
      result = 1;
    }

  if (mq_close (q) != 0)
    {
      printf ("mq_close failed: %m\n");
      result = 1;
    }

  memset (&ev, 0x55, sizeof (ev));
  ev.sigev_notify = SIGEV_THREAD;
  ev.sigev_notify_function = fct;
  ev.sigev_notify_attributes = NULL;
  ev.sigev_value.sival_int = 0;
  if (mq_notify (q, &ev) == 0)
    {
      puts ("mq_notify on closed mqd_t unexpectedly succeeded");
      result = 1;
    }
  else if (errno != EBADF)
    {
      printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n");
      result = 1;
    }

  if (fct_err)
    result = 1;
  return result;
}
#else
# define TEST_FUNCTION 0
#endif

#include "../test-skeleton.c"