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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* This file contains the handle based Memory Manager defines
*/
#ifndef TINSEL_HEAPMEM_H
#define TINSEL_HEAPMEM_H
#include "tinsel/dw.h" // new data types
namespace Tinsel {
struct MEM_NODE;
/*----------------------------------------------------------------------*\
|* Memory Function Prototypes *|
\*----------------------------------------------------------------------*/
void MemoryInit(); // initializes the memory manager
void MemoryDeinit(); // deinitializes the memory manager
// reserves a memory node for a movable & discardable block
MEM_NODE *MemoryNoAlloc();
// allocates a fixed block with the specified number of bytes
MEM_NODE *MemoryAllocFixed(long size);
void MemoryDiscard( // discards the specified memory object
MEM_NODE *pMemNode); // node of the memory object
void *MemoryLock( // locks a memory object and returns a pointer to the first byte of the objects memory block
MEM_NODE *pMemNode); // node of the memory object
void MemoryReAlloc( // changes the size or attributes of a specified memory object
MEM_NODE *pMemNode, // node of the memory object
long size); // new size of block
void MemoryUnlock( // unlocks a memory object
MEM_NODE *pMemNode); // node of the memory object
// 'touch' the memory object, i.e., update its "least recently used" counter.
void MemoryTouch(MEM_NODE *pMemNode);
// Dereference a given memory node
uint8 *MemoryDeref(MEM_NODE *pMemNode);
} // End of namespace Tinsel
#endif
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