rt/tst-mqueue4.c

   1 /* Test message queue passing.
   2    Copyright (C) 2004 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
   5
   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.
  10
  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.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <errno.h>
  22 #include <fcntl.h>
  23 #include <mqueue.h>
  24 #include <limits.h>
  25 #include <signal.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <sys/time.h>
  30 #include <sys/wait.h>
  31 #include <time.h>
  32 #include <unistd.h>
  33 #include "tst-mqueue.h"
  34
  35 #define TIMEOUT 4
  36 #define TEST_FUNCTION do_test ()
  37 static int
  38 do_test (void)
  39 {
  40   int result = 0;
  41
  42   char name[sizeof "/tst-mqueue4-" + sizeof (pid_t) * 3 + NAME_MAX];
  43   char *p;
  44   p = name + snprintf (name, sizeof (name), "/tst-mqueue4-%u", getpid ());
  45   struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
  46   mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
  47
  48   if (q == (mqd_t) -1)
  49     {
  50       printf ("mq_open failed with: %m\n");
  51       return result;
  52     }
  53   else
  54     add_temp_mq (name);
  55
  56   *p = '.';
  57   memset (p + 1, 'x', NAME_MAX + 1 - (p - name));
  58   name[NAME_MAX + 1] = '\0';
  59
  60   mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
  61   if (q2 == (mqd_t) -1)
  62     {
  63       printf ("mq_open with NAME_MAX long name compoment failed with: %m\n");
  64       result = 1;
  65     }
  66
  67   if (mq_unlink (name) != 0)
  68     {
  69       printf ("mq_unlink failed: %m\n");
  70       result = 1;
  71     }
  72
  73   if (mq_close (q2) != 0)
  74     {
  75       printf ("mq_close failed: %m\n");
  76       result = 1;
  77     }
  78
  79   name[NAME_MAX + 1] = 'x';
  80   name[NAME_MAX + 2] = '\0';
  81   q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
  82   if (q2 != (mqd_t) -1)
  83     {
  84       puts ("mq_open with too long name component unexpectedly succeeded");
  85       mq_unlink (name);
  86       mq_close (q2);
  87       result = 1;
  88     }
  89   else if (errno != ENAMETOOLONG)
  90     {
  91       printf ("mq_open with too long name component did not fail with "
  92               "ENAMETOOLONG: %m\n");
  93       result = 1;
  94     }
  95
  96   if (mq_unlink (name) == 0)
  97     {
  98       puts ("mq_unlink with too long name component unexpectedly succeeded");
  99       result = 1;
 100     }
 101   else if (errno != ENAMETOOLONG)
 102     {
 103       printf ("mq_unlink with too long name component did not fail with "
 104               "ENAMETOOLONG: %m\n");
 105       result = 1;
 106     }
 107
 108   *p = '\0';
 109   attr.mq_maxmsg = 1;
 110   attr.mq_msgsize = 3;
 111   q2 = mq_open (name, O_CREAT | O_RDWR, 0600, &attr);
 112   if (q2 == (mqd_t) -1)
 113     {
 114       printf ("mq_open without O_EXCL failed with %m\n");
 115       result = 1;
 116     }
 117
 118   char buf[3];
 119   strcpy (buf, "jk");
 120   if (mq_send (q, buf, 2, 4) != 0)
 121     {
 122       printf ("mq_send failed: %m\n");
 123       result = 1;
 124     }
 125
 126   if (mq_send (q, buf + 1, 1, 5) != 0)
 127     {
 128       printf ("mq_send failed: %m\n");
 129       result = 1;
 130     }
 131
 132   if (mq_getattr (q2, &attr) != 0)
 133     {
 134       printf ("mq_getattr failed: %m\n");
 135       result = 1;
 136     }
 137
 138   if ((attr.mq_flags & O_NONBLOCK)
 139       || attr.mq_maxmsg != 2
 140       || attr.mq_msgsize != 2
 141       || attr.mq_curmsgs != 2)
 142     {
 143       printf ("mq_getattr returned unexpected { .mq_flags = %ld,\n"
 144               ".mq_maxmsg = %ld, .mq_msgsize = %ld, .mq_curmsgs = %ld }\n",
 145               attr.mq_flags, attr.mq_maxmsg, attr.mq_msgsize, attr.mq_curmsgs);
 146       result = 1;
 147     }
 148
 149   struct timespec ts;
 150   if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
 151     ++ts.tv_sec;
 152   else
 153     {
 154       ts.tv_sec = time (NULL) + 1;
 155       ts.tv_nsec = 0;
 156     }
 157
 158   if (mq_timedsend (q2, buf, 1, 1, &ts) == 0)
 159     {
 160       puts ("mq_timedsend unexpectedly succeeded");
 161       result = 1;
 162     }
 163   else if (errno != ETIMEDOUT)
 164     {
 165       printf ("mq_timedsend did not fail with ETIMEDOUT: %m\n");
 166       result = 1;
 167     }
 168
 169   if (mq_close (q2) != 0)
 170     {
 171       printf ("mq_close failed: %m\n");
 172       result = 1;
 173     }
 174
 175   q2 = mq_open (name, O_RDONLY, 0600);
 176   if (q2 == (mqd_t) -1)
 177     {
 178       printf ("mq_open without O_CREAT failed with %m\n");
 179       result = 1;
 180     }
 181
 182   mqd_t q3 = mq_open (name, O_RDONLY, 0600);
 183   if (q3 == (mqd_t) -1)
 184     {
 185       printf ("mq_open without O_CREAT failed with %m\n");
 186       result = 1;
 187     }
 188
 189   memset (buf, ' ', sizeof (buf));
 190
 191   unsigned int prio;
 192   ssize_t rets = mq_receive (q2, buf, 2, &prio);
 193   if (rets != 1)
 194     {
 195       if (rets == -1)
 196         printf ("mq_receive failed with: %m\n");
 197       else
 198         printf ("mq_receive returned %zd != 1\n", rets);
 199       result = 1;
 200     }
 201   else if (prio != 5 || memcmp (buf, "k  ", 3) != 0)
 202     {
 203       printf ("mq_receive returned prio %u (2) buf \"%c%c%c\" (\"k  \")\n",
 204               prio, buf[0], buf[1], buf[2]);
 205       result = 1;
 206     }
 207
 208   if (mq_getattr (q3, &attr) != 0)
 209     {
 210       printf ("mq_getattr failed: %m\n");
 211       result = 1;
 212     }
 213
 214   if ((attr.mq_flags & O_NONBLOCK)
 215       || attr.mq_maxmsg != 2
 216       || attr.mq_msgsize != 2
 217       || attr.mq_curmsgs != 1)
 218     {
 219       printf ("mq_getattr returned unexpected { .mq_flags = %ld,\n"
 220               ".mq_maxmsg = %ld, .mq_msgsize = %ld, .mq_curmsgs = %ld }\n",
 221               attr.mq_flags, attr.mq_maxmsg, attr.mq_msgsize, attr.mq_curmsgs);
 222       result = 1;
 223     }
 224
 225   rets = mq_receive (q3, buf, 2, NULL);
 226   if (rets != 2)
 227     {
 228       if (rets == -1)
 229         printf ("mq_receive failed with: %m\n");
 230       else
 231         printf ("mq_receive returned %zd != 2\n", rets);
 232       result = 1;
 233     }
 234   else if (memcmp (buf, "jk ", 3) != 0)
 235     {
 236       printf ("mq_receive returned buf \"%c%c%c\" != \"jk \"\n",
 237               buf[0], buf[1], buf[2]);
 238       result = 1;
 239     }
 240
 241   if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
 242     ++ts.tv_sec;
 243   else
 244     {
 245       ts.tv_sec = time (NULL) + 1;
 246       ts.tv_nsec = 0;
 247     }
 248
 249   if (mq_timedreceive (q2, buf, 2, NULL, &ts) != -1)
 250     {
 251       puts ("mq_timedreceive on empty queue unexpectedly succeeded");
 252       result = 1;
 253     }
 254   else if (errno != ETIMEDOUT)
 255     {
 256       printf ("mq_timedreceive on empty queue did not fail with "
 257               "ETIMEDOUT: %m\n");
 258       result = 1;
 259     }
 260
 261   if (mq_unlink (name) != 0)
 262     {
 263       printf ("mq_unlink failed: %m\n");
 264       result = 1;
 265     }
 266
 267   if (mq_close (q) != 0)
 268     {
 269       printf ("mq_close failed: %m\n");
 270       result = 1;
 271     }
 272
 273   if (mq_close (q2) != 0)
 274     {
 275       printf ("mq_close failed: %m\n");
 276       result = 1;
 277     }
 278
 279   if (mq_close (q3) != 0)
 280     {
 281       printf ("mq_close failed: %m\n");
 282       result = 1;
 283     }
 284
 285   return result;
 286 }
 287
 288 #include "../test-skeleton.c"