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-rw-r--r--rt/tst-mqueue1.c416
1 files changed, 416 insertions, 0 deletions
diff --git a/rt/tst-mqueue1.c b/rt/tst-mqueue1.c
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+++ b/rt/tst-mqueue1.c
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+/* Test message queue passing.
+ Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+static int
+intcmp (const void *a, const void *b)
+{
+ if (*(unsigned char *)a < *(unsigned char *)b)
+ return 1;
+ if (*(unsigned char *)a > *(unsigned char *)b)
+ return -1;
+ return 0;
+}
+
+static int
+check_attrs (struct mq_attr *attr, int nonblock, long cnt)
+{
+ int result = 0;
+
+ if (attr->mq_maxmsg != 10 || attr->mq_msgsize != 1)
+ {
+ printf ("attributes don't match those passed to mq_open\n"
+ "mq_maxmsg %ld, mq_msgsize %ld\n",
+ attr->mq_maxmsg, attr->mq_msgsize);
+ result = 1;
+ }
+
+ if ((attr->mq_flags & O_NONBLOCK) != nonblock)
+ {
+ printf ("mq_flags %lx != %x\n", (attr->mq_flags & O_NONBLOCK), nonblock);
+ result = 1;
+ }
+
+ if (attr->mq_curmsgs != cnt)
+ {
+ printf ("mq_curmsgs %ld != %ld\n", attr->mq_curmsgs, cnt);
+ result = 1;
+ }
+
+ return result;
+}
+
+static int
+do_one_test (mqd_t q, const char *name, int nonblock)
+{
+ int result = 0;
+
+ unsigned char v []
+ = { 0x32, 0x62, 0x22, 0x31, 0x11, 0x73, 0x61, 0x21, 0x72, 0x71, 0x81 };
+
+ struct mq_attr attr;
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 0);
+
+ if (mq_receive (q, &v[0], 1, NULL) != -1)
+ {
+ puts ("mq_receive on O_WRONLY mqd_t unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_receive on O_WRONLY mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ struct timespec ts;
+ if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+ --ts.tv_sec;
+ else
+ {
+ ts.tv_sec = time (NULL) - 1;
+ ts.tv_nsec = 0;
+ }
+
+ int ret;
+ for (int i = 0; i < 10; ++i)
+ {
+ if (i & 1)
+ ret = mq_send (q, &v[i], 1, v[i] >> 4);
+ else
+ ret = mq_timedsend (q, &v[i], 1, v[i] >> 4, &ts);
+
+ if (ret)
+ {
+ printf ("mq_%ssend failed: %m\n", (i & 1) ? "" : "timed");
+ result = 1;
+ }
+ }
+
+ ret = mq_timedsend (q, &v[10], 1, 8, &ts);
+ if (ret != -1)
+ {
+ puts ("mq_timedsend on full queue did not fail");
+ result = 1;
+ }
+ else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
+ {
+ printf ("mq_timedsend on full queue did not fail with %s: %m\n",
+ nonblock ? "EAGAIN" : "ETIMEDOUT");
+ result = 1;
+ }
+
+ if (nonblock)
+ {
+ ret = mq_send (q, &v[10], 1, 8);
+ if (ret != -1)
+ {
+ puts ("mq_send on full non-blocking queue did not fail");
+ result = 1;
+ }
+ else if (errno != EAGAIN)
+ {
+ printf ("mq_send on full non-blocking queue did not fail"
+ "with EAGAIN: %m\n");
+ result = 1;
+ }
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 10);
+
+ pid_t pid = fork ();
+ if (pid == -1)
+ {
+ printf ("fork failed: %m\n");
+ result = 1;
+ }
+ else if (pid == 0)
+ {
+ result = 0;
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in child failed: %m\n");
+ result = 1;
+ }
+
+ q = mq_open (name, O_RDONLY | nonblock);
+ if (q == (mqd_t) -1)
+ {
+ printf ("mq_open in child failed: %m\n");
+ exit (1);
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 10);
+
+ unsigned char vr[11] = { };
+ unsigned int prio;
+ ssize_t rets;
+
+ if (mq_send (q, &v[0], 1, 1) != -1)
+ {
+ puts ("mq_send on O_RDONLY mqd_t unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_send on O_WRONLY mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ for (int i = 0; i < 10; ++i)
+ {
+ if (i & 1)
+ rets = mq_receive (q, &vr[i], 1, &prio);
+ else
+ rets = mq_timedreceive (q, &vr[i], 1, &prio, &ts);
+
+ if (rets != 1)
+ {
+ if (rets == -1)
+ printf ("mq_%sreceive failed: %m\n", (i & 1) ? "" : "timed");
+ else
+ printf ("mq_%sreceive returned %zd != 1\n",
+ (i & 1) ? "" : "timed", rets);
+ result = 1;
+ }
+ else if (prio != (unsigned int) vr[i] >> 4)
+ {
+ printf ("unexpected priority %x for value %02x\n", prio,
+ vr[i]);
+ result = 1;
+ }
+ }
+
+ qsort (v, 10, 1, intcmp);
+ if (memcmp (v, vr, 10) != 0)
+ {
+ puts ("messages not received in expected order");
+ result = 1;
+ }
+
+ rets = mq_timedreceive (q, &vr[10], 1, &prio, &ts);
+ if (rets != -1)
+ {
+ puts ("mq_timedreceive on empty queue did not fail");
+ result = 1;
+ }
+ else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
+ {
+ printf ("mq_timedreceive on empty queue did not fail with %s: %m\n",
+ nonblock ? "EAGAIN" : "ETIMEDOUT");
+ result = 1;
+ }
+
+ if (nonblock)
+ {
+ ret = mq_receive (q, &vr[10], 1, &prio);
+ if (ret != -1)
+ {
+ puts ("mq_receive on empty non-blocking queue did not fail");
+ result = 1;
+ }
+ else if (errno != EAGAIN)
+ {
+ printf ("mq_receive on empty non-blocking queue did not fail"
+ "with EAGAIN: %m\n");
+ result = 1;
+ }
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 0);
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in child failed: %m\n");
+ result = 1;
+ }
+
+ exit (result);
+ }
+
+ int status;
+ if (waitpid (pid, &status, 0) != pid)
+ {
+ printf ("waitpid failed: %m\n");
+ result = 1;
+ }
+ else if (!WIFEXITED (status) || WEXITSTATUS (status))
+ {
+ printf ("child failed: %d\n", status);
+ result = 1;
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 0);
+
+ return result;
+}
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ int result = 0;
+
+ char name[sizeof "/tst-mqueue-" + sizeof (pid_t) * 3];
+ snprintf (name, sizeof (name), "/tst-mqueue-%u", getpid ());
+
+ struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
+ mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
+
+ if (q == (mqd_t) -1)
+ {
+ printf ("mq_open failed with: %m\n");
+ return result;
+ }
+ else
+ add_temp_mq (name);
+
+ result = do_one_test (q, name, 0);
+
+ mqd_t q2 = mq_open (name, O_WRONLY | O_NONBLOCK);
+ if (q2 == (mqd_t) -1)
+ {
+ printf ("mq_open failed with: %m\n");
+ q2 = q;
+ result = 1;
+ }
+ else
+ {
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in parent failed: %m\n");
+ result = 1;
+ }
+
+ q = q2;
+ result |= do_one_test (q, name, O_NONBLOCK);
+
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ {
+ attr.mq_flags ^= O_NONBLOCK;
+
+ struct mq_attr attr2;
+ memset (&attr2, 0x55, sizeof (attr2));
+ if (mq_setattr (q, &attr, &attr2) != 0)
+ {
+ printf ("mq_setattr failed: %m\n");
+ result = 1;
+ }
+ else if (attr.mq_flags != (attr2.mq_flags ^ O_NONBLOCK)
+ || attr.mq_maxmsg != attr2.mq_maxmsg
+ || attr.mq_msgsize != attr2.mq_msgsize
+ || attr.mq_curmsgs != 0
+ || attr2.mq_curmsgs != 0)
+ {
+ puts ("mq_setattr returned unexpected values in *omqstat");
+ result = 1;
+ }
+ else
+ {
+ result |= do_one_test (q, name, 0);
+
+ if (mq_setattr (q, &attr2, NULL) != 0)
+ {
+ printf ("mq_setattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result |= do_one_test (q, name, O_NONBLOCK);
+ }
+ }
+ }
+
+ if (mq_unlink (name) != 0)
+ {
+ printf ("mq_unlink failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in parent failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q) != -1)
+ {
+ puts ("second mq_close did not fail");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("second mq_close did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ return result;
+}
+
+#include "../test-skeleton.c"
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