usr/src/cmd/sendmail/libsm/t-memstat.c

   1 /*
   2  * Copyright (c) 2005-2007 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  *
   5  * By using this file, you agree to the terms and conditions set
   6  * forth in the LICENSE file which can be found at the top level of
   7  * the sendmail distribution.
   8  */
   9
  10 #pragma ident   "%Z%%M% %I%     %E% SMI"
  11
  12 #include <sm/gen.h>
  13 SM_IDSTR(id, "@(#)$Id: t-memstat.c,v 1.9 2007/03/14 21:41:09 ca Exp $")
  14
  15 #include <sm/misc.h>
  16
  17 /*
  18 **  Simple test program for memstat
  19 */
  20
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <stdio.h>
  24 #include <strings.h>
  25 #include <string.h>
  26
  27 extern char *optarg;
  28 extern int optind;
  29
  30 void
  31 usage(prg)
  32         char *prg;
  33 {
  34         fprintf(stderr, "usage: %s [options]\n", prg);
  35         fprintf(stderr, "options:\n");
  36         fprintf(stderr, "-l n    loop n times\n");
  37         fprintf(stderr, "-m n    allocate n bytes per iteration\n");
  38         fprintf(stderr, "-r name use name as resource to query\n");
  39         fprintf(stderr, "-s n    sleep n seconds per iteration\n");
  40 }
  41
  42 int
  43 main(argc, argv)
  44         int argc;
  45         char **argv;
  46 {
  47         int r, r2, i, l, slp, sz;
  48         long v;
  49         char *resource;
  50
  51         l = 1;
  52         sz = slp = 0;
  53         resource = NULL;
  54         while ((r = getopt(argc, argv, "l:m:r:s:")) != -1)
  55         {
  56                 switch ((char) r)
  57                 {
  58                   case 'l':
  59                         l = strtol(optarg, NULL, 0);
  60                         break;
  61
  62                   case 'm':
  63                         sz = strtol(optarg, NULL, 0);
  64                         break;
  65
  66                   case 'r':
  67                         resource = strdup(optarg);
  68                         break;
  69
  70                   case 's':
  71                         slp = strtol(optarg, NULL, 0);
  72                         break;
  73
  74                   default:
  75                         usage(argv[0]);
  76                         exit(1);
  77                 }
  78         }
  79
  80         r = sm_memstat_open();
  81         r2 = -1;
  82         for (i = 0; i < l; i++)
  83         {
  84                 char *mem;
  85
  86                 r2 = sm_memstat_get(resource, &v);
  87                 if (slp > 0 && i + 1 < l && 0 == r)
  88                 {
  89                         printf("open=%d, memstat=%d, %s=%ld\n", r, r2,
  90                                 resource != NULL ? resource : "default-value",
  91                                 v);
  92                         sleep(slp);
  93                         if (sz > 0)
  94                         {
  95                                 /*
  96                                 **  Just allocate some memory to test the
  97                                 **  values that are returned.
  98                                 **  Note: this is a memory leak, but that
  99                                 **  doesn't matter here.
 100                                 */
 101
 102                                 mem = malloc(sz);
 103                                 if (NULL == mem)
 104                                         printf("malloc(%d) failed\n", sz);
 105                         }
 106                 }
 107         }
 108         printf("open=%d, memstat=%d, %s=%ld\n", r, r2,
 109                 resource != NULL ? resource : "default-value", v);
 110         r = sm_memstat_close();
 111         return r;
 112 }