mmalloc/mmstats.c

   1 /* Access the statistics maintained by `mmalloc'.
   2    Copyright 1990, 1991, 1992 Free Software Foundation
   3
   4    Written May 1989 by Mike Haertel.
   5    Modified Mar 1992 by Fred Fish.  (fnf@cygnus.com)
   6
   7 The GNU C Library is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU Library General Public License as
   9 published by the Free Software Foundation; either version 2 of the
  10 License, or (at your option) any later version.
  11
  12 The GNU C Library is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 Library General Public License for more details.
  16
  17 You should have received a copy of the GNU Library General Public
  18 License along with the GNU C Library; see the file COPYING.LIB.  If
  19 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.
  21
  22    The author may be reached (Email) at the address mike@ai.mit.edu,
  23    or (US mail) as Mike Haertel c/o Free Software Foundation. */
  24
  25 #include "mmprivate.h"
  26
  27 /* FIXME:  See the comment in mmprivate.h where struct mstats is defined.
  28    None of the internal mmalloc structures should be externally visible
  29    outside the library. */
  30
  31 struct mstats
  32 mmstats (md)
  33   PTR md;
  34 {
  35   struct mstats result;
  36   struct mdesc *mdp;
  37
  38   mdp = MD_TO_MDP (md);
  39   result.bytes_total =
  40       (char *) mdp -> morecore (mdp, 0) - mdp -> heapbase;
  41   result.chunks_used = mdp -> heapstats.chunks_used;
  42   result.bytes_used = mdp -> heapstats.bytes_used;
  43   result.chunks_free = mdp -> heapstats.chunks_free;
  44   result.bytes_free = mdp -> heapstats.bytes_free;
  45   return (result);
  46 }