479 lines
12 KiB
C
479 lines
12 KiB
C
/* Test message queue passing.
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Copyright (C) 2004-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <mqueue.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <time.h>
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#include <unistd.h>
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#include <support/check.h>
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#include "tst-mqueue.h"
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static void
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alrm_handler (int sig)
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{
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}
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#define TEST_FUNCTION do_test ()
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static int
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do_test (void)
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{
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int result = 0;
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char name[sizeof "/tst-mqueue2-" + sizeof (pid_t) * 3];
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snprintf (name, sizeof (name), "/tst-mqueue2-%u", getpid ());
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struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
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mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
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if (q == (mqd_t) -1)
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{
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if (errno == ENOSYS)
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FAIL_UNSUPPORTED ("mq_open not supported");
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printf ("mq_open failed with: %m\n");
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return 1;
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}
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add_temp_mq (name);
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mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
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if (q2 != (mqd_t) -1)
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{
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puts ("mq_open with O_EXCL unexpectedly succeeded");
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result = 1;
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}
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else if (errno != EEXIST)
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{
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printf ("mq_open did not fail with EEXIST: %m\n");
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result = 1;
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}
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char name2[sizeof "/tst-mqueue2-2-" + sizeof (pid_t) * 3];
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snprintf (name2, sizeof (name2), "/tst-mqueue2-2-%u", getpid ());
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attr.mq_maxmsg = -2;
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q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
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if (q2 != (mqd_t) -1)
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{
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puts ("mq_open with invalid mq_maxmsg unexpectedly succeeded");
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add_temp_mq (name2);
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_open with invalid mq_maxmsg did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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attr.mq_maxmsg = 2;
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attr.mq_msgsize = -56;
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q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
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if (q2 != (mqd_t) -1)
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{
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puts ("mq_open with invalid mq_msgsize unexpectedly succeeded");
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add_temp_mq (name2);
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_open with invalid mq_msgsize did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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char buf[3];
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struct timespec ts;
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if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
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ts.tv_sec += 10;
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else
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{
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ts.tv_sec = time (NULL) + 10;
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ts.tv_nsec = 0;
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}
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if (mq_timedreceive (q, buf, 1, NULL, &ts) == 0)
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{
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puts ("mq_timedreceive with too small msg_len did not fail");
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result = 1;
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}
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else if (errno != EMSGSIZE)
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{
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printf ("mq_timedreceive with too small msg_len did not fail with "
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"EMSGSIZE: %m\n");
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result = 1;
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}
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ts.tv_nsec = -1;
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if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
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{
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puts ("mq_timedreceive with negative tv_nsec did not fail");
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_timedreceive with negative tv_nsec did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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ts.tv_nsec = 1000000000;
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if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
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{
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puts ("mq_timedreceive with tv_nsec >= 1000000000 did not fail");
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_timedreceive with tv_nsec >= 1000000000 did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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struct sigaction sa = { .sa_handler = alrm_handler, .sa_flags = 0 };
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sigemptyset (&sa.sa_mask);
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sigaction (SIGALRM, &sa, NULL);
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struct itimerval it = { .it_value = { .tv_sec = 1 } };
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setitimer (ITIMER_REAL, &it, NULL);
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if (mq_receive (q, buf, 2, NULL) == 0)
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{
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puts ("mq_receive on empty queue did not block");
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result = 1;
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}
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else if (errno != EINTR)
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{
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printf ("mq_receive on empty queue did not fail with EINTR: %m\n");
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result = 1;
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}
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setitimer (ITIMER_REAL, &it, NULL);
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ts.tv_nsec = 0;
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if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
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{
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puts ("mq_timedreceive on empty queue did not block");
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result = 1;
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}
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else if (errno != EINTR)
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{
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printf ("mq_timedreceive on empty queue did not fail with EINTR: %m\n");
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result = 1;
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}
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buf[0] = '6';
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buf[1] = '7';
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if (mq_send (q, buf, 2, 3) != 0
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|| (buf[0] = '8', mq_send (q, buf, 1, 4) != 0))
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{
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printf ("mq_send failed: %m\n");
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result = 1;
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}
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memset (buf, ' ', sizeof (buf));
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unsigned int prio;
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ssize_t rets = mq_receive (q, buf, 3, &prio);
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if (rets != 1)
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{
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if (rets == -1)
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printf ("mq_receive failed: %m\n");
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else
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printf ("mq_receive returned %zd != 1\n", rets);
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result = 1;
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}
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else if (prio != 4 || memcmp (buf, "8 ", 3) != 0)
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{
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printf ("mq_receive prio %u (4) buf \"%c%c%c\" (\"8 \")\n",
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prio, buf[0], buf[1], buf[2]);
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result = 1;
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}
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rets = mq_receive (q, buf, 2, NULL);
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if (rets != 2)
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{
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if (rets == -1)
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printf ("mq_receive failed: %m\n");
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else
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printf ("mq_receive returned %zd != 2\n", rets);
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result = 1;
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}
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else if (memcmp (buf, "67 ", 3) != 0)
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{
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printf ("mq_receive buf \"%c%c%c\" != \"67 \"\n",
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buf[0], buf[1], buf[2]);
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result = 1;
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}
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buf[0] = '2';
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buf[1] = '1';
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if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
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ts.tv_sec = time (NULL);
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ts.tv_nsec = -1000000001;
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if ((mq_timedsend (q, buf, 2, 5, &ts) != 0
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&& (errno != EINVAL || mq_send (q, buf, 2, 5) != 0))
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|| (buf[0] = '3', ts.tv_nsec = -ts.tv_nsec,
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(mq_timedsend (q, buf, 1, 4, &ts) != 0
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&& (errno != EINVAL || mq_send (q, buf, 1, 4) != 0))))
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{
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printf ("mq_timedsend failed: %m\n");
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result = 1;
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}
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buf[0] = '-';
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ts.tv_nsec = 1000000001;
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if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
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{
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puts ("mq_timedsend with tv_nsec >= 1000000000 did not fail");
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_timedsend with tv_nsec >= 1000000000 did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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ts.tv_nsec = -2;
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if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
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{
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puts ("mq_timedsend with negative tv_nsec did not fail");
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_timedsend with megatove tv_nsec did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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setitimer (ITIMER_REAL, &it, NULL);
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if (mq_send (q, buf, 2, 8) == 0)
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{
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puts ("mq_send on full queue did not block");
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result = 1;
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}
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else if (errno != EINTR)
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{
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printf ("mq_send on full queue did not fail with EINTR: %m\n");
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result = 1;
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}
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setitimer (ITIMER_REAL, &it, NULL);
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ts.tv_sec += 10;
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ts.tv_nsec = 0;
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if (mq_timedsend (q, buf, 2, 7, &ts) == 0)
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{
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puts ("mq_timedsend on full queue did not block");
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result = 1;
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}
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else if (errno != EINTR)
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{
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printf ("mq_timedsend on full queue did not fail with EINTR: %m\n");
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result = 1;
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}
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memset (buf, ' ', sizeof (buf));
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if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
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ts.tv_sec = time (NULL);
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ts.tv_nsec = -1000000001;
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rets = mq_timedreceive (q, buf, 2, &prio, &ts);
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if (rets == -1 && errno == EINVAL)
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rets = mq_receive (q, buf, 2, &prio);
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if (rets != 2)
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{
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if (rets == -1)
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printf ("mq_timedreceive failed: %m\n");
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else
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printf ("mq_timedreceive returned %zd != 2\n", rets);
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result = 1;
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}
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else if (prio != 5 || memcmp (buf, "21 ", 3) != 0)
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{
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printf ("mq_timedreceive prio %u (5) buf \"%c%c%c\" (\"21 \")\n",
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prio, buf[0], buf[1], buf[2]);
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result = 1;
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}
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if (mq_receive (q, buf, 1, NULL) == 0)
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{
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puts ("mq_receive with too small msg_len did not fail");
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result = 1;
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}
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else if (errno != EMSGSIZE)
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{
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printf ("mq_receive with too small msg_len did not fail with "
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"EMSGSIZE: %m\n");
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result = 1;
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}
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ts.tv_nsec = -ts.tv_nsec;
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rets = mq_timedreceive (q, buf, 2, NULL, &ts);
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if (rets == -1 && errno == EINVAL)
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rets = mq_receive (q, buf, 2, NULL);
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if (rets != 1)
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{
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if (rets == -1)
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printf ("mq_timedreceive failed: %m\n");
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else
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printf ("mq_timedreceive returned %zd != 1\n", rets);
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result = 1;
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}
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else if (memcmp (buf, "31 ", 3) != 0)
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{
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printf ("mq_timedreceive buf \"%c%c%c\" != \"31 \"\n",
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buf[0], buf[1], buf[2]);
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result = 1;
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}
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if (mq_send (q, "", 0, 2) != 0)
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{
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printf ("mq_send with msg_len 0 failed: %m\n");
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result = 1;
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}
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rets = mq_receive (q, buf, 2, &prio);
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if (rets)
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{
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if (rets == -1)
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printf ("mq_receive failed: %m\n");
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else
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printf ("mq_receive returned %zd != 0\n", rets);
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result = 1;
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}
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long mq_prio_max = sysconf (_SC_MQ_PRIO_MAX);
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if (mq_prio_max > 0 && (unsigned int) mq_prio_max == mq_prio_max)
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{
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if (mq_send (q, buf, 1, mq_prio_max) == 0)
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{
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puts ("mq_send with MQ_PRIO_MAX priority unpexpectedly succeeded");
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result = 1;
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}
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else if (errno != EINVAL)
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{
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printf ("mq_send with MQ_PRIO_MAX priority did not fail with "
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"EINVAL: %m\n");
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result = 1;
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}
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if (mq_send (q, buf, 1, mq_prio_max - 1) != 0)
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{
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printf ("mq_send with MQ_PRIO_MAX-1 priority failed: %m\n");
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result = 1;
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}
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}
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if (mq_unlink (name) != 0)
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{
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printf ("mq_unlink failed: %m\n");
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result = 1;
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}
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q2 = mq_open (name, O_RDWR);
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if (q2 != (mqd_t) -1)
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{
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printf ("mq_open of unlinked %s without O_CREAT unexpectedly"
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"succeeded\n", name);
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result = 1;
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}
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else if (errno != ENOENT)
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{
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printf ("mq_open of unlinked %s without O_CREAT did not fail with "
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"ENOENT: %m\n", name);
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result = 1;
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}
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if (mq_close (q) != 0)
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{
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printf ("mq_close in parent failed: %m\n");
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result = 1;
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}
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if (mq_receive (q, buf, 2, NULL) == 0)
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{
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puts ("mq_receive on invalid mqd_t did not fail");
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result = 1;
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}
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else if (errno != EBADF)
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{
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printf ("mq_receive on invalid mqd_t did not fail with EBADF: %m\n");
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result = 1;
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}
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if (mq_send (q, buf, 1, 2) == 0)
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{
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puts ("mq_send on invalid mqd_t did not fail");
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result = 1;
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}
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else if (errno != EBADF)
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{
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printf ("mq_send on invalid mqd_t did not fail with EBADF: %m\n");
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result = 1;
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}
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if (mq_getattr (q, &attr) == 0)
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{
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puts ("mq_getattr on invalid mqd_t did not fail");
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result = 1;
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}
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else if (errno != EBADF)
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{
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printf ("mq_getattr on invalid mqd_t did not fail with EBADF: %m\n");
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result = 1;
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}
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memset (&attr, 0, sizeof (attr));
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if (mq_setattr (q, &attr, NULL) == 0)
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{
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puts ("mq_setattr on invalid mqd_t did not fail");
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result = 1;
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}
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else if (errno != EBADF)
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{
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printf ("mq_setattr on invalid mqd_t did not fail with EBADF: %m\n");
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result = 1;
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}
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if (mq_unlink ("/tst-mqueue2-which-should-never-exist") != -1)
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{
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puts ("mq_unlink of non-existant message queue unexpectedly succeeded");
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result = 1;
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}
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else if (errno != ENOENT)
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{
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printf ("mq_unlink of non-existant message queue did not fail with "
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"ENOENT: %m\n");
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result = 1;
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}
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return result;
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}
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#include "../test-skeleton.c"
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