1 /* Test message queue passing.
2 Copyright (C) 2004-2019 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 <https://www.gnu.org/licenses/>. */
31 #include "tst-mqueue.h"
34 alrm_handler (int sig)
38 #define TEST_FUNCTION do_test ()
44 char name[sizeof "/tst-mqueue2-" + sizeof (pid_t) * 3];
45 snprintf (name, sizeof (name), "/tst-mqueue2-%u", getpid ());
47 struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
48 mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
52 printf ("mq_open failed with: %m\n");
58 mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
61 puts ("mq_open with O_EXCL unexpectedly succeeded");
64 else if (errno != EEXIST)
66 printf ("mq_open did not fail with EEXIST: %m\n");
70 char name2[sizeof "/tst-mqueue2-2-" + sizeof (pid_t) * 3];
71 snprintf (name2, sizeof (name2), "/tst-mqueue2-2-%u", getpid ());
74 q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
77 puts ("mq_open with invalid mq_maxmsg unexpectedly succeeded");
81 else if (errno != EINVAL)
83 printf ("mq_open with invalid mq_maxmsg did not fail with "
89 attr.mq_msgsize = -56;
90 q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
93 puts ("mq_open with invalid mq_msgsize unexpectedly succeeded");
97 else if (errno != EINVAL)
99 printf ("mq_open with invalid mq_msgsize did not fail with "
106 if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
110 ts.tv_sec = time (NULL) + 10;
114 if (mq_timedreceive (q, buf, 1, NULL, &ts) == 0)
116 puts ("mq_timedreceive with too small msg_len did not fail");
119 else if (errno != EMSGSIZE)
121 printf ("mq_timedreceive with too small msg_len did not fail with "
127 if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
129 puts ("mq_timedreceive with negative tv_nsec did not fail");
132 else if (errno != EINVAL)
134 printf ("mq_timedreceive with negative tv_nsec did not fail with "
139 ts.tv_nsec = 1000000000;
140 if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
142 puts ("mq_timedreceive with tv_nsec >= 1000000000 did not fail");
145 else if (errno != EINVAL)
147 printf ("mq_timedreceive with tv_nsec >= 1000000000 did not fail with "
152 struct sigaction sa = { .sa_handler = alrm_handler, .sa_flags = 0 };
153 sigemptyset (&sa.sa_mask);
154 sigaction (SIGALRM, &sa, NULL);
156 struct itimerval it = { .it_value = { .tv_sec = 1 } };
157 setitimer (ITIMER_REAL, &it, NULL);
159 if (mq_receive (q, buf, 2, NULL) == 0)
161 puts ("mq_receive on empty queue did not block");
164 else if (errno != EINTR)
166 printf ("mq_receive on empty queue did not fail with EINTR: %m\n");
170 setitimer (ITIMER_REAL, &it, NULL);
173 if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
175 puts ("mq_timedreceive on empty queue did not block");
178 else if (errno != EINTR)
180 printf ("mq_timedreceive on empty queue did not fail with EINTR: %m\n");
186 if (mq_send (q, buf, 2, 3) != 0
187 || (buf[0] = '8', mq_send (q, buf, 1, 4) != 0))
189 printf ("mq_send failed: %m\n");
193 memset (buf, ' ', sizeof (buf));
196 ssize_t rets = mq_receive (q, buf, 3, &prio);
200 printf ("mq_receive failed: %m\n");
202 printf ("mq_receive returned %zd != 1\n", rets);
205 else if (prio != 4 || memcmp (buf, "8 ", 3) != 0)
207 printf ("mq_receive prio %u (4) buf \"%c%c%c\" (\"8 \")\n",
208 prio, buf[0], buf[1], buf[2]);
212 rets = mq_receive (q, buf, 2, NULL);
216 printf ("mq_receive failed: %m\n");
218 printf ("mq_receive returned %zd != 2\n", rets);
221 else if (memcmp (buf, "67 ", 3) != 0)
223 printf ("mq_receive buf \"%c%c%c\" != \"67 \"\n",
224 buf[0], buf[1], buf[2]);
230 if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
231 ts.tv_sec = time (NULL);
232 ts.tv_nsec = -1000000001;
233 if ((mq_timedsend (q, buf, 2, 5, &ts) != 0
234 && (errno != EINVAL || mq_send (q, buf, 2, 5) != 0))
235 || (buf[0] = '3', ts.tv_nsec = -ts.tv_nsec,
236 (mq_timedsend (q, buf, 1, 4, &ts) != 0
237 && (errno != EINVAL || mq_send (q, buf, 1, 4) != 0))))
239 printf ("mq_timedsend failed: %m\n");
244 ts.tv_nsec = 1000000001;
245 if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
247 puts ("mq_timedsend with tv_nsec >= 1000000000 did not fail");
250 else if (errno != EINVAL)
252 printf ("mq_timedsend with tv_nsec >= 1000000000 did not fail with "
258 if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
260 puts ("mq_timedsend with negative tv_nsec did not fail");
263 else if (errno != EINVAL)
265 printf ("mq_timedsend with megatove tv_nsec did not fail with "
270 setitimer (ITIMER_REAL, &it, NULL);
272 if (mq_send (q, buf, 2, 8) == 0)
274 puts ("mq_send on full queue did not block");
277 else if (errno != EINTR)
279 printf ("mq_send on full queue did not fail with EINTR: %m\n");
283 setitimer (ITIMER_REAL, &it, NULL);
287 if (mq_timedsend (q, buf, 2, 7, &ts) == 0)
289 puts ("mq_timedsend on full queue did not block");
292 else if (errno != EINTR)
294 printf ("mq_timedsend on full queue did not fail with EINTR: %m\n");
298 memset (buf, ' ', sizeof (buf));
300 if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
301 ts.tv_sec = time (NULL);
302 ts.tv_nsec = -1000000001;
303 rets = mq_timedreceive (q, buf, 2, &prio, &ts);
304 if (rets == -1 && errno == EINVAL)
305 rets = mq_receive (q, buf, 2, &prio);
309 printf ("mq_timedreceive failed: %m\n");
311 printf ("mq_timedreceive returned %zd != 2\n", rets);
314 else if (prio != 5 || memcmp (buf, "21 ", 3) != 0)
316 printf ("mq_timedreceive prio %u (5) buf \"%c%c%c\" (\"21 \")\n",
317 prio, buf[0], buf[1], buf[2]);
321 if (mq_receive (q, buf, 1, NULL) == 0)
323 puts ("mq_receive with too small msg_len did not fail");
326 else if (errno != EMSGSIZE)
328 printf ("mq_receive with too small msg_len did not fail with "
333 ts.tv_nsec = -ts.tv_nsec;
334 rets = mq_timedreceive (q, buf, 2, NULL, &ts);
335 if (rets == -1 && errno == EINVAL)
336 rets = mq_receive (q, buf, 2, NULL);
340 printf ("mq_timedreceive failed: %m\n");
342 printf ("mq_timedreceive returned %zd != 1\n", rets);
345 else if (memcmp (buf, "31 ", 3) != 0)
347 printf ("mq_timedreceive buf \"%c%c%c\" != \"31 \"\n",
348 buf[0], buf[1], buf[2]);
352 if (mq_send (q, "", 0, 2) != 0)
354 printf ("mq_send with msg_len 0 failed: %m\n");
358 rets = mq_receive (q, buf, 2, &prio);
362 printf ("mq_receive failed: %m\n");
364 printf ("mq_receive returned %zd != 0\n", rets);
368 long mq_prio_max = sysconf (_SC_MQ_PRIO_MAX);
369 if (mq_prio_max > 0 && (unsigned int) mq_prio_max == mq_prio_max)
371 if (mq_send (q, buf, 1, mq_prio_max) == 0)
373 puts ("mq_send with MQ_PRIO_MAX priority unpexpectedly succeeded");
376 else if (errno != EINVAL)
378 printf ("mq_send with MQ_PRIO_MAX priority did not fail with "
383 if (mq_send (q, buf, 1, mq_prio_max - 1) != 0)
385 printf ("mq_send with MQ_PRIO_MAX-1 priority failed: %m\n");
390 if (mq_unlink (name) != 0)
392 printf ("mq_unlink failed: %m\n");
396 q2 = mq_open (name, O_RDWR);
397 if (q2 != (mqd_t) -1)
399 printf ("mq_open of unlinked %s without O_CREAT unexpectedly"
400 "succeeded\n", name);
403 else if (errno != ENOENT)
405 printf ("mq_open of unlinked %s without O_CREAT did not fail with "
406 "ENOENT: %m\n", name);
410 if (mq_close (q) != 0)
412 printf ("mq_close in parent failed: %m\n");
416 if (mq_receive (q, buf, 2, NULL) == 0)
418 puts ("mq_receive on invalid mqd_t did not fail");
421 else if (errno != EBADF)
423 printf ("mq_receive on invalid mqd_t did not fail with EBADF: %m\n");
427 if (mq_send (q, buf, 1, 2) == 0)
429 puts ("mq_send on invalid mqd_t did not fail");
432 else if (errno != EBADF)
434 printf ("mq_send on invalid mqd_t did not fail with EBADF: %m\n");
438 if (mq_getattr (q, &attr) == 0)
440 puts ("mq_getattr on invalid mqd_t did not fail");
443 else if (errno != EBADF)
445 printf ("mq_getattr on invalid mqd_t did not fail with EBADF: %m\n");
449 memset (&attr, 0, sizeof (attr));
450 if (mq_setattr (q, &attr, NULL) == 0)
452 puts ("mq_setattr on invalid mqd_t did not fail");
455 else if (errno != EBADF)
457 printf ("mq_setattr on invalid mqd_t did not fail with EBADF: %m\n");
461 if (mq_unlink ("/tst-mqueue2-which-should-never-exist") != -1)
463 puts ("mq_unlink of non-existant message queue unexpectedly succeeded");
466 else if (errno != ENOENT)
468 printf ("mq_unlink of non-existant message queue did not fail with "
475 #include "../test-skeleton.c"