1 /* Test message queue passing.
2 Copyright (C) 2004-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
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, see
18 <http://www.gnu.org/licenses/>. */
30 #include "tst-mqueue.h"
33 intcmp (const void *a, const void *b)
35 if (*(unsigned char *)a < *(unsigned char *)b)
37 if (*(unsigned char *)a > *(unsigned char *)b)
43 check_attrs (struct mq_attr *attr, int nonblock, long cnt)
47 if (attr->mq_maxmsg != 10 || attr->mq_msgsize != 1)
49 printf ("attributes don't match those passed to mq_open\n"
50 "mq_maxmsg %jd, mq_msgsize %jd\n",
51 (intmax_t) attr->mq_maxmsg, (intmax_t) attr->mq_msgsize);
55 if ((attr->mq_flags & O_NONBLOCK) != nonblock)
57 printf ("mq_flags %jx != %x\n",
58 (intmax_t) (attr->mq_flags & O_NONBLOCK), nonblock);
62 if (attr->mq_curmsgs != cnt)
64 printf ("mq_curmsgs %jd != %ld\n", (intmax_t) attr->mq_curmsgs, cnt);
72 do_one_test (mqd_t q, const char *name, int nonblock)
77 = { 0x32, 0x62, 0x22, 0x31, 0x11, 0x73, 0x61, 0x21, 0x72, 0x71, 0x81 };
80 memset (&attr, 0xaa, sizeof (attr));
81 if (mq_getattr (q, &attr) != 0)
83 printf ("mq_getattr failed: %m\n");
87 result |= check_attrs (&attr, nonblock, 0);
89 if (mq_receive (q, (char *) &v[0], 1, NULL) != -1)
91 puts ("mq_receive on O_WRONLY mqd_t unexpectedly succeeded");
94 else if (errno != EBADF)
96 printf ("mq_receive on O_WRONLY mqd_t did not fail with EBADF: %m\n");
101 if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
105 ts.tv_sec = time (NULL) - 1;
110 for (int i = 0; i < 10; ++i)
113 ret = mq_send (q, (char *) &v[i], 1, v[i] >> 4);
115 ret = mq_timedsend (q, (char *) &v[i], 1, v[i] >> 4, &ts);
119 printf ("mq_%ssend failed: %m\n", (i & 1) ? "" : "timed");
124 ret = mq_timedsend (q, (char *) &v[10], 1, 8, &ts);
127 puts ("mq_timedsend on full queue did not fail");
130 else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
132 printf ("mq_timedsend on full queue did not fail with %s: %m\n",
133 nonblock ? "EAGAIN" : "ETIMEDOUT");
139 ret = mq_send (q, (char *) &v[10], 1, 8);
142 puts ("mq_send on full non-blocking queue did not fail");
145 else if (errno != EAGAIN)
147 printf ("mq_send on full non-blocking queue did not fail"
148 "with EAGAIN: %m\n");
153 memset (&attr, 0xaa, sizeof (attr));
154 if (mq_getattr (q, &attr) != 0)
156 printf ("mq_getattr failed: %m\n");
160 result |= check_attrs (&attr, nonblock, 10);
165 printf ("fork failed: %m\n");
172 if (mq_close (q) != 0)
174 printf ("mq_close in child failed: %m\n");
178 q = mq_open (name, O_RDONLY | nonblock);
181 printf ("mq_open in child failed: %m\n");
185 memset (&attr, 0xaa, sizeof (attr));
186 if (mq_getattr (q, &attr) != 0)
188 printf ("mq_getattr failed: %m\n");
192 result |= check_attrs (&attr, nonblock, 10);
194 unsigned char vr[11] = { };
198 if (mq_send (q, (char *) &v[0], 1, 1) != -1)
200 puts ("mq_send on O_RDONLY mqd_t unexpectedly succeeded");
203 else if (errno != EBADF)
205 printf ("mq_send on O_WRONLY mqd_t did not fail with EBADF: %m\n");
209 for (int i = 0; i < 10; ++i)
212 rets = mq_receive (q, (char *) &vr[i], 1, &prio);
214 rets = mq_timedreceive (q, (char *) &vr[i], 1, &prio, &ts);
219 printf ("mq_%sreceive failed: %m\n", (i & 1) ? "" : "timed");
221 printf ("mq_%sreceive returned %zd != 1\n",
222 (i & 1) ? "" : "timed", rets);
225 else if (prio != (unsigned int) vr[i] >> 4)
227 printf ("unexpected priority %x for value %02x\n", prio,
233 qsort (v, 10, 1, intcmp);
234 if (memcmp (v, vr, 10) != 0)
236 puts ("messages not received in expected order");
240 rets = mq_timedreceive (q, (char *) &vr[10], 1, &prio, &ts);
243 puts ("mq_timedreceive on empty queue did not fail");
246 else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
248 printf ("mq_timedreceive on empty queue did not fail with %s: %m\n",
249 nonblock ? "EAGAIN" : "ETIMEDOUT");
255 ret = mq_receive (q, (char *) &vr[10], 1, &prio);
258 puts ("mq_receive on empty non-blocking queue did not fail");
261 else if (errno != EAGAIN)
263 printf ("mq_receive on empty non-blocking queue did not fail"
264 "with EAGAIN: %m\n");
269 memset (&attr, 0xaa, sizeof (attr));
270 if (mq_getattr (q, &attr) != 0)
272 printf ("mq_getattr failed: %m\n");
276 result |= check_attrs (&attr, nonblock, 0);
278 if (mq_close (q) != 0)
280 printf ("mq_close in child failed: %m\n");
288 if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
290 printf ("waitpid failed: %m\n");
294 else if (!WIFEXITED (status) || WEXITSTATUS (status))
296 printf ("child failed: %d\n", status);
300 memset (&attr, 0xaa, sizeof (attr));
301 if (mq_getattr (q, &attr) != 0)
303 printf ("mq_getattr failed: %m\n");
307 result |= check_attrs (&attr, nonblock, 0);
312 #define TEST_FUNCTION do_test ()
318 char name[sizeof "/tst-mqueue1-" + sizeof (pid_t) * 3];
319 snprintf (name, sizeof (name), "/tst-mqueue1-%u", getpid ());
321 struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
322 mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
326 printf ("mq_open failed with: %m\n");
332 result |= do_one_test (q, name, 0);
334 mqd_t q2 = mq_open (name, O_WRONLY | O_NONBLOCK);
335 if (q2 == (mqd_t) -1)
337 printf ("mq_open failed with: %m\n");
343 if (mq_close (q) != 0)
345 printf ("mq_close in parent failed: %m\n");
350 result |= do_one_test (q, name, O_NONBLOCK);
352 if (mq_getattr (q, &attr) != 0)
354 printf ("mq_getattr failed: %m\n");
359 attr.mq_flags ^= O_NONBLOCK;
361 struct mq_attr attr2;
362 memset (&attr2, 0x55, sizeof (attr2));
363 if (mq_setattr (q, &attr, &attr2) != 0)
365 printf ("mq_setattr failed: %m\n");
368 else if (attr.mq_flags != (attr2.mq_flags ^ O_NONBLOCK)
369 || attr.mq_maxmsg != attr2.mq_maxmsg
370 || attr.mq_msgsize != attr2.mq_msgsize
371 || attr.mq_curmsgs != 0
372 || attr2.mq_curmsgs != 0)
374 puts ("mq_setattr returned unexpected values in *omqstat");
379 result |= do_one_test (q, name, 0);
381 if (mq_setattr (q, &attr2, NULL) != 0)
383 printf ("mq_setattr failed: %m\n");
387 result |= do_one_test (q, name, O_NONBLOCK);
392 if (mq_unlink (name) != 0)
394 printf ("mq_unlink failed: %m\n");
398 if (mq_close (q) != 0)
400 printf ("mq_close in parent failed: %m\n");
404 if (mq_close (q) != -1)
406 puts ("second mq_close did not fail");
409 else if (errno != EBADF)
411 printf ("second mq_close did not fail with EBADF: %m\n");
418 #include "../test-skeleton.c"