source3/lib/talloctort.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba temporary memory allocation functions -- torturer
   4    Copyright (C) 2001 by Martin Pool <mbp@samba.org>
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program 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
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23 #define NCTX 10
  24 #define NOBJ 20
  25
  26 int main(void)
  27 {
  28         int i;
  29         TALLOC_CTX *ctx[NCTX];
  30
  31         for (i = 0; i < NCTX; i++) {
  32                 ctx[i] = talloc_init("torture(%d)", i);
  33         }
  34
  35         for (i = 0; i < NCTX; i++) {
  36                 int j;
  37                 for (j = 0; j < NOBJ; j++) {
  38                         char *p;
  39                         size_t size = 1<<(i/3+j);
  40
  41                         p = talloc(ctx[i], size);
  42                         if (!p) {
  43                                 fprintf(stderr,
  44                                         "failed to talloc %.0f bytes\n",
  45                                         (double) size);
  46                                 exit(1);
  47                         }
  48
  49                         memset(p, 'A' + j, size);
  50                 }
  51         }
  52
  53         for (i = 0; i < NCTX; i++) {
  54                 printf("talloc@%p %-40s %dkB\n", ctx[i],
  55                        talloc_pool_name(ctx[i]),
  56                        talloc_pool_size(ctx[i]) >> 10);
  57         }
  58
  59         printf("%s", talloc_describe_all(ctx[0]));
  60
  61         for (i = NCTX - 1; i >= 0; i--)
  62                 talloc_destroy(ctx[i]);
  63
  64         return 0;
  65 }