dolphin/Source/Core/DiscIO/Src/Filesystem.h

// Copyright (C) 2003 Dolphin 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, version 2.0.

// 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 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/

#ifndef _FILESYSTEM_H
#define _FILESYSTEM_H

#include "Volume.h"

namespace DiscIO
{

// file info of an FST entry
struct SFileInfo
{
	u64 m_NameOffset;
	u64 m_Offset;
	u64 m_FileSize;
	char m_FullPath[512];

	bool IsDirectory() const { return (m_NameOffset & 0xFF000000) != 0 ? true : false; }

	SFileInfo() : m_NameOffset(0), m_Offset(0), m_FileSize(0) {
		memset(m_FullPath, 0, sizeof(m_FullPath));
	}

	SFileInfo(const SFileInfo &rhs) : m_NameOffset(rhs.m_NameOffset), 
		m_Offset(rhs.m_Offset), m_FileSize(rhs.m_FileSize) {
		memcpy(m_FullPath, rhs.m_FullPath, strlen(rhs.m_FullPath));
	}
};

class IFileSystem
{
public:
	IFileSystem(const IVolume *_rVolume);

	virtual ~IFileSystem();
	virtual bool IsInitialized() const = 0;
	virtual size_t GetFileList(std::vector<const SFileInfo *> &_rFilenames) const = 0;
	virtual u64 GetFileSize(const char* _rFullPath) const = 0;
	virtual u64 ReadFile(const char* _rFullPath, u8* _pBuffer, size_t _MaxBufferSize) const = 0;
	virtual bool ExportFile(const char* _rFullPath, const char* _rExportFilename) const = 0;
	virtual bool ExportAllFiles(const char* _rFullPath) const = 0;
	virtual const char* GetFileName(u64 _Address) const = 0;

	virtual const IVolume *GetVolume() const { return m_rVolume; }
protected:
	const IVolume *m_rVolume;
};

IFileSystem* CreateFileSystem(const IVolume *_rVolume);

} // namespace

#endif