myfilemap.h

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/*
 *
 * myfilemap.h
 *
   Copyright (C) 2006 Michael H. Overlin

   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
   
   Contact at [e-mail]
 */

#ifndef MYMAPFILE_H
#define MYMAPFILE_H

#include "types.h"
#include <windows.h>

class MyFileMap {
public:
	MyFileMap(void);
	~MyFileMap();

	BOOL Open(const tstring& tstr) ;
	BOOL Create(const tstring& tstr, DWORD dwCb) ;
	void Close(void);
	BOOL IsOpen(void) const { return this->hFile != INVALID_HANDLE_VALUE; }

	const void* GetBasePtr(VOID) const;
	const void* GetOffsetPtr(const DWORD dwOffset) const;
	DWORD GetSize(VOID) const;

private:

	HANDLE hFile;
	HANDLE hMap;
	LPVOID lpMap;
	DWORD dwSize;
};

class MyFileReadWriteMap {
public:
	MyFileReadWriteMap(void);
	~MyFileReadWriteMap();

	BOOL Create(const tstring& tstr, DWORD dwCb) ;
	void Close(void);
	BOOL IsOpen(void) const { return this->hFile != INVALID_HANDLE_VALUE; }

	void *GetBasePtr(void) ;
	void *GetOffsetPtr(const DWORD dwOffset) ;
	DWORD GetSize(VOID) const;

	HANDLE GetFileMapHandle(void) ;

private:

	HANDLE hFile;
	HANDLE hMap;
	LPVOID lpMap;
	DWORD dwSize;
};

#endif