1 /* Test message queue passing.
2 Copyright (C) 2004, 2007 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/>. */
29 #include "tst-mqueue.h"
32 intcmp (const void *a, const void *b)
34 if (*(unsigned char *)a < *(unsigned char *)b)
36 if (*(unsigned char *)a > *(unsigned char *)b)
42 check_attrs (struct mq_attr *attr, int nonblock, long cnt)
46 if (attr->mq_maxmsg != 10 || attr->mq_msgsize != 1)
48 printf ("attributes don't match those passed to mq_open\n"
49 "mq_maxmsg %ld, mq_msgsize %ld\n",
50 attr->mq_maxmsg, attr->mq_msgsize);
54 if ((attr->mq_flags & O_NONBLOCK) != nonblock)
56 printf ("mq_flags %lx != %x\n", (attr->mq_flags & O_NONBLOCK), nonblock);
60 if (attr->mq_curmsgs != cnt)
62 printf ("mq_curmsgs %ld != %ld\n", attr->mq_curmsgs, cnt);
70 do_one_test (mqd_t q, const char *name, int nonblock)
75 = { 0x32, 0x62, 0x22, 0x31, 0x11, 0x73, 0x61, 0x21, 0x72, 0x71, 0x81 };
78 memset (&attr, 0xaa, sizeof (attr));
79 if (mq_getattr (q, &attr) != 0)
81 printf ("mq_getattr failed: %m\n");
85 result |= check_attrs (&attr, nonblock, 0);
87 if (mq_receive (q, (char *) &v[0], 1, NULL) != -1)
89 puts ("mq_receive on O_WRONLY mqd_t unexpectedly succeeded");
92 else if (errno != EBADF)
94 printf ("mq_receive on O_WRONLY mqd_t did not fail with EBADF: %m\n");
99 if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
103 ts.tv_sec = time (NULL) - 1;
108 for (int i = 0; i < 10; ++i)
111 ret = mq_send (q, (char *) &v[i], 1, v[i] >> 4);
113 ret = mq_timedsend (q, (char *) &v[i], 1, v[i] >> 4, &ts);
117 printf ("mq_%ssend failed: %m\n", (i & 1) ? "" : "timed");
122 ret = mq_timedsend (q, (char *) &v[10], 1, 8, &ts);
125 puts ("mq_timedsend on full queue did not fail");
128 else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
130 printf ("mq_timedsend on full queue did not fail with %s: %m\n",
131 nonblock ? "EAGAIN" : "ETIMEDOUT");
137 ret = mq_send (q, (char *) &v[10], 1, 8);
140 puts ("mq_send on full non-blocking queue did not fail");
143 else if (errno != EAGAIN)
145 printf ("mq_send on full non-blocking queue did not fail"
146 "with EAGAIN: %m\n");
151 memset (&attr, 0xaa, sizeof (attr));
152 if (mq_getattr (q, &attr) != 0)
154 printf ("mq_getattr failed: %m\n");
158 result |= check_attrs (&attr, nonblock, 10);
163 printf ("fork failed: %m\n");
170 if (mq_close (q) != 0)
172 printf ("mq_close in child failed: %m\n");
176 q = mq_open (name, O_RDONLY | nonblock);
179 printf ("mq_open in child failed: %m\n");
183 memset (&attr, 0xaa, sizeof (attr));
184 if (mq_getattr (q, &attr) != 0)
186 printf ("mq_getattr failed: %m\n");
190 result |= check_attrs (&attr, nonblock, 10);
192 unsigned char vr[11] = { };
196 if (mq_send (q, (char *) &v[0], 1, 1) != -1)
198 puts ("mq_send on O_RDONLY mqd_t unexpectedly succeeded");
201 else if (errno != EBADF)
203 printf ("mq_send on O_WRONLY mqd_t did not fail with EBADF: %m\n");
207 for (int i = 0; i < 10; ++i)
210 rets = mq_receive (q, (char *) &vr[i], 1, &prio);
212 rets = mq_timedreceive (q, (char *) &vr[i], 1, &prio, &ts);
217 printf ("mq_%sreceive failed: %m\n", (i & 1) ? "" : "timed");
219 printf ("mq_%sreceive returned %zd != 1\n",
220 (i & 1) ? "" : "timed", rets);
223 else if (prio != (unsigned int) vr[i] >> 4)
225 printf ("unexpected priority %x for value %02x\n", prio,
231 qsort (v, 10, 1, intcmp);
232 if (memcmp (v, vr, 10) != 0)
234 puts ("messages not received in expected order");
238 rets = mq_timedreceive (q, (char *) &vr[10], 1, &prio, &ts);
241 puts ("mq_timedreceive on empty queue did not fail");
244 else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
246 printf ("mq_timedreceive on empty queue did not fail with %s: %m\n",
247 nonblock ? "EAGAIN" : "ETIMEDOUT");
253 ret = mq_receive (q, (char *) &vr[10], 1, &prio);
256 puts ("mq_receive on empty non-blocking queue did not fail");
259 else if (errno != EAGAIN)
261 printf ("mq_receive on empty non-blocking queue did not fail"
262 "with EAGAIN: %m\n");
267 memset (&attr, 0xaa, sizeof (attr));
268 if (mq_getattr (q, &attr) != 0)
270 printf ("mq_getattr failed: %m\n");
274 result |= check_attrs (&attr, nonblock, 0);
276 if (mq_close (q) != 0)
278 printf ("mq_close in child failed: %m\n");
286 if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
288 printf ("waitpid failed: %m\n");
292 else if (!WIFEXITED (status) || WEXITSTATUS (status))
294 printf ("child failed: %d\n", status);
298 memset (&attr, 0xaa, sizeof (attr));
299 if (mq_getattr (q, &attr) != 0)
301 printf ("mq_getattr failed: %m\n");
305 result |= check_attrs (&attr, nonblock, 0);
310 #define TEST_FUNCTION do_test ()
316 char name[sizeof "/tst-mqueue1-" + sizeof (pid_t) * 3];
317 snprintf (name, sizeof (name), "/tst-mqueue1-%u", getpid ());
319 struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
320 mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
324 printf ("mq_open failed with: %m\n");
330 result |= do_one_test (q, name, 0);
332 mqd_t q2 = mq_open (name, O_WRONLY | O_NONBLOCK);
333 if (q2 == (mqd_t) -1)
335 printf ("mq_open failed with: %m\n");
341 if (mq_close (q) != 0)
343 printf ("mq_close in parent failed: %m\n");
348 result |= do_one_test (q, name, O_NONBLOCK);
350 if (mq_getattr (q, &attr) != 0)
352 printf ("mq_getattr failed: %m\n");
357 attr.mq_flags ^= O_NONBLOCK;
359 struct mq_attr attr2;
360 memset (&attr2, 0x55, sizeof (attr2));
361 if (mq_setattr (q, &attr, &attr2) != 0)
363 printf ("mq_setattr failed: %m\n");
366 else if (attr.mq_flags != (attr2.mq_flags ^ O_NONBLOCK)
367 || attr.mq_maxmsg != attr2.mq_maxmsg
368 || attr.mq_msgsize != attr2.mq_msgsize
369 || attr.mq_curmsgs != 0
370 || attr2.mq_curmsgs != 0)
372 puts ("mq_setattr returned unexpected values in *omqstat");
377 result |= do_one_test (q, name, 0);
379 if (mq_setattr (q, &attr2, NULL) != 0)
381 printf ("mq_setattr failed: %m\n");
385 result |= do_one_test (q, name, O_NONBLOCK);
390 if (mq_unlink (name) != 0)
392 printf ("mq_unlink failed: %m\n");
396 if (mq_close (q) != 0)
398 printf ("mq_close in parent failed: %m\n");
402 if (mq_close (q) != -1)
404 puts ("second mq_close did not fail");
407 else if (errno != EBADF)
409 printf ("second mq_close did not fail with EBADF: %m\n");
416 #include "../test-skeleton.c"