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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef MEMMAN_H
#define MEMMAN_H
#include "scummsys.h"
struct BsMemHandle {
void *data;
uint32 size;
uint32 refCount;
uint16 cond;
BsMemHandle *next, *prev;
};
// mem conditions:
#define MEM_FREED 0
#define MEM_CAN_FREE 1
#define MEM_DONT_FREE 2
#define MAX_ALLOC (6*1024*1024) // max amount of mem we want to alloc().
class MemMan {
public:
MemMan(void);
~MemMan(void);
void alloc(BsMemHandle *bsMem, uint32 pSize, uint16 pCond = MEM_DONT_FREE);
void setCondition(BsMemHandle *bsMem, uint16 pCond);
void freeNow(BsMemHandle *bsMem);
void initHandle(BsMemHandle *bsMem);
void flush(void);
private:
void addToFreeList(BsMemHandle *bsMem);
void removeFromFreeList(BsMemHandle *bsMem);
void checkMemoryUsage(void);
uint32 _alloced; //currently allocated memory
BsMemHandle *_memListFree;
BsMemHandle *_memListFreeEnd;
};
#endif //MEMMAN_H
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