lib/util/talloc_report_printf.c

   1 /*
   2  * talloc_report into a FILE
   3  *
   4  * Copyright Volker Lendecke <vl@samba.org> 2015
   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 3 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "replace.h"
  21 #include "talloc_report_printf.h"
  22
  23 static void talloc_report_printf_helper(
  24         const void *ptr,
  25         int depth,
  26         int max_depth,
  27         int is_ref,
  28         void *private_data)
  29 {
  30         FILE *f = private_data;
  31         const char *name = talloc_get_name(ptr);
  32
  33         if (is_ref) {
  34                 fprintf(f,
  35                         "%*sreference to: %s\n",
  36                         depth*4,
  37                         "",
  38                         name);
  39                 return;
  40         }
  41
  42         if (depth == 0) {
  43                 fprintf(f,
  44                         "%stalloc report on '%s' "
  45                         "(total %6zu bytes in %3zu blocks)\n",
  46                         (max_depth < 0 ? "full " :""), name,
  47                         talloc_total_size(ptr),
  48                         talloc_total_blocks(ptr));
  49                 return;
  50         }
  51
  52         if (strcmp(name, "char") == 0) {
  53                 /*
  54                  * Print out the first 50 bytes of the string
  55                  */
  56                 fprintf(f,
  57                         "%*s%-30s contains %6zu bytes in %3zu blocks "
  58                         "(ref %zu): %*s\n", depth*4, "", name,
  59                         talloc_total_size(ptr),
  60                         talloc_total_blocks(ptr),
  61                         talloc_reference_count(ptr),
  62                         (int)MIN(50, talloc_get_size(ptr)),
  63                         (const char *)ptr);
  64                 return;
  65         }
  66
  67         fprintf(f,
  68                 "%*s%-30s contains %6zu bytes in %3zu blocks (ref %zu) %p\n",
  69                 depth*4, "", name,
  70                 talloc_total_size(ptr),
  71                 talloc_total_blocks(ptr),
  72                 talloc_reference_count(ptr),
  73                 ptr);
  74 }
  75
  76 void talloc_full_report_printf(TALLOC_CTX *root, FILE *f)
  77 {
  78         talloc_report_depth_cb(root, 0, -1, talloc_report_printf_helper, f);
  79
  80 #ifdef HAVE_MALLINFO
  81         {
  82                 struct mallinfo mi;
  83
  84                 mi = mallinfo();
  85                 fprintf(f,
  86                         "mallinfo:\n"
  87                         "    arena: %d\n"
  88                         "    ordblks: %d\n"
  89                         "    smblks: %d\n"
  90                         "    hblks: %d\n"
  91                         "    hblkhd: %d\n"
  92                         "    usmblks: %d\n"
  93                         "    fsmblks: %d\n"
  94                         "    uordblks: %d\n"
  95                         "    fordblks: %d\n"
  96                         "    keepcost: %d\n",
  97                         mi.arena,
  98                         mi.ordblks,
  99                         mi.smblks,
 100                         mi.hblks,
 101                         mi.hblkhd,
 102                         mi.usmblks,
 103                         mi.fsmblks,
 104                         mi.uordblks,
 105                         mi.fordblks,
 106                         mi.keepcost);
 107         }
 108 #endif /* HAVE_MALLINFO */
 109 }