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., 675 Mass Ave,
  20 Cambridge, MA 02139, 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 "mmalloc.h"
  26
  27 /* FIXME:  See the comment in mmalloc.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 }