2 * memfreemax.c - return size of maximum unallocated heap block
4 * written by Vangelis Rokas <vrokas AT otenet.gr> 2005
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
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.
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 * In other words, you are welcome to use, share and improve this program.
21 * You are forbidden to forbid anyone else to use, share and improve
22 * what you give them. Help stamp out software-hoarding!
24 * $Id: memfreemax.c 3835 2005-08-07 20:09:11Z tecodev $
29 extern unsigned char _MALLOC_SPEC *heap;
31 unsigned int memfreemax(void)
33 _malloc_rec _MALLOC_SPEC *pHeap;
34 unsigned char maxSize = 1;
37 pHeap = (_malloc_rec _MALLOC_SPEC *)&heap;
39 while ((bLen = pHeap->bits.count)) {
40 if(!pHeap->bits.alloc && (bLen > maxSize))
43 pHeap = (_malloc_rec _MALLOC_SPEC *)((unsigned int)pHeap + bLen);
46 /* do not count the block header */