contrib/sendmail-8.14/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 #include <sm/gen.h>
  11 SM_IDSTR(id, "@(#)$Id: t-memstat.c,v 1.9 2007/03/14 21:41:09 ca Exp $")
  12
  13 #include <sm/misc.h>
  14
  15 /*
  16 **  Simple test program for memstat
  17 */
  18
  19 #include <stdlib.h>
  20 #include <unistd.h>
  21 #include <stdio.h>
  22 #include <strings.h>
  23 #include <string.h>
  24
  25 extern char *optarg;
  26 extern int optind;
  27
  28 void
  29 usage(prg)
  30         char *prg;
  31 {
  32         fprintf(stderr, "usage: %s [options]\n", prg);
  33         fprintf(stderr, "options:\n");
  34         fprintf(stderr, "-l n    loop n times\n");
  35         fprintf(stderr, "-m n    allocate n bytes per iteration\n");
  36         fprintf(stderr, "-r name use name as resource to query\n");
  37         fprintf(stderr, "-s n    sleep n seconds per iteration\n");
  38 }
  39
  40 int
  41 main(argc, argv)
  42         int argc;
  43         char **argv;
  44 {
  45         int r, r2, i, l, slp, sz;
  46         long v;
  47         char *resource;
  48
  49         l = 1;
  50         sz = slp = 0;
  51         resource = NULL;
  52         while ((r = getopt(argc, argv, "l:m:r:s:")) != -1)
  53         {
  54                 switch ((char) r)
  55                 {
  56                   case 'l':
  57                         l = strtol(optarg, NULL, 0);
  58                         break;
  59
  60                   case 'm':
  61                         sz = strtol(optarg, NULL, 0);
  62                         break;
  63
  64                   case 'r':
  65                         resource = strdup(optarg);
  66                         break;
  67
  68                   case 's':
  69                         slp = strtol(optarg, NULL, 0);
  70                         break;
  71
  72                   default:
  73                         usage(argv[0]);
  74                         exit(1);
  75                 }
  76         }
  77
  78         r = sm_memstat_open();
  79         r2 = -1;
  80         for (i = 0; i < l; i++)
  81         {
  82                 char *mem;
  83
  84                 r2 = sm_memstat_get(resource, &v);
  85                 if (slp > 0 && i + 1 < l && 0 == r)
  86                 {
  87                         printf("open=%d, memstat=%d, %s=%ld\n", r, r2,
  88                                 resource != NULL ? resource : "default-value",
  89                                 v);
  90                         sleep(slp);
  91                         if (sz > 0)
  92                         {
  93                                 /*
  94                                 **  Just allocate some memory to test the
  95                                 **  values that are returned.
  96                                 **  Note: this is a memory leak, but that
  97                                 **  doesn't matter here.
  98                                 */
  99
 100                                 mem = malloc(sz);
 101                                 if (NULL == mem)
 102                                         printf("malloc(%d) failed\n", sz);
 103                         }
 104                 }
 105         }
 106         printf("open=%d, memstat=%d, %s=%ld\n", r, r2,
 107                 resource != NULL ? resource : "default-value", v);
 108         r = sm_memstat_close();
 109         return r;
 110 }