test/ipc/shmctl/shmctl04.c

   1 /*
   2  *
   3  *   Copyright (c) International Business Machines  Corp., 2001
   4  *
   5  *   This program is free software;  you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation; either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  13  *   the GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program;  if not, write to the Free Software
  17  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  */
  19
  20 /*
  21  * NAME
  22  *      shmctl04.c
  23  *
  24  * DESCRIPTION
  25  *      shmctl04 - test the SHM_INFO command
  26  *                 they are used with shmctl() in ipcs
  27  *
  28  * USAGE:  <for command-line>
  29  *  shmctl04 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
  30  *     where,  -c n : Run n copies concurrently.
  31  *             -f   : Turn off functionality Testing.
  32  *             -i n : Execute test n times.
  33  *             -I x : Execute test for x seconds.
  34  *             -P x : Pause for x seconds between iterations.
  35  *             -t   : Turn on syscall timing.
  36  *
  37  * HISTORY
  38  *      09/2002 - Written by Mingming Cao
  39  *
  40  * RESTRICTIONS
  41  *      none
  42  */
  43
  44 #include "ipcshm.h"
  45
  46 char *TCID = "shmctl04";
  47 int TST_TOTAL = 1;
  48 extern int Tst_count;
  49
  50 struct shm_info shm_info;
  51 int max_ids;
  52
  53 /*
  54  * These are the various setup and check functions for the commands
  55  * that we are checking.
  56  */
  57
  58 int main(int ac, char **av)
  59 {
  60         int lc;                         /* loop counter */
  61         char *msg;                      /* message returned from parse_opts */
  62
  63         /* parse standard options */
  64         if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
  65                 tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
  66         }
  67
  68         setup();
  69
  70         /* The following loop checks looping state if -i option given */
  71
  72         for (lc = 0; TEST_LOOPING(lc); lc++) {
  73                 /* reset Tst_count in case we are looping */
  74                 Tst_count = 0;
  75                 TEST(shmctl(0, SHM_INFO, (struct shmid_ds *)&shm_info));
  76
  77                 if (TEST_RETURN != -1) {
  78                         tst_resm(TPASS, "SHM_INFO call succeeded");
  79                         continue;
  80                 }
  81
  82                 TEST_ERROR_LOG(TEST_ERRNO);
  83
  84                 tst_resm(TFAIL, "SHM_INFO call failed with an unexpected error"
  85                         " - %d : %s",TEST_ERRNO, strerror(TEST_ERRNO));
  86
  87         }
  88
  89         cleanup();
  90
  91         /*NOTREACHED*/
  92         return(0);
  93 }
  94
  95 /*
  96  * setup() - performs all the ONE TIME setup for this test.
  97  */
  98 void
  99 setup(void)
 100 {
 101         /* capture signals */
 102         tst_sig(NOFORK, DEF_HANDLER, cleanup);
 103
 104         /* Pause if that option was specified */
 105         TEST_PAUSE;
 106
 107         /*
 108          * Create a temporary directory and cd into it.
 109          * This helps to ensure that a unique msgkey is created.
 110          * See ../lib/libipc.c for more information.
 111          */
 112         tst_tmpdir();
 113
 114 }
 115
 116 /*
 117  * cleanup() - performs all the ONE TIME cleanup for this test at completion
 118  *             or premature exit.
 119  */
 120 void
 121 cleanup(void)
 122 {
 123
 124         /* Remove the temporary directory */
 125         tst_rmdir();
 126
 127         /*
 128          * print timing stats if that option was specified.
 129          * print errno log if that option was specified.
 130          */
 131         TEST_CLEANUP;
 132
 133         /* exit with return code appropriate for results */
 134         tst_exit();
 135 }
 136