www.pudn.com > potemkin_sourceforPSP.rar > MetaFileSystem.h

#pragma once 
 
#include "FileSystem.h" 
 
 
class MetaFileSystem : public IHandleAllocator, IFileSystem 
{ 
	u32 current; 
	struct System 
	{ 
		std::string prefix; 
		IFileSystem *system; 
	}; 
	std::vector fileSystems; 
	 
	std::string currentDirectory; 
 
public: 
	MetaFileSystem() {current=6;} 
	void Mount(std::string prefix, IFileSystem *system); 
 
	void Unmount(IFileSystem *system); 
 
	u32 GetNewHandle() {return current++;} 
	void FreeHandle(u32 handle) {} 
 
	IFileSystem *GetHandleOwner(u32 handle); 
	bool MapFilePath(std::string inpath, std::string &outpath, IFileSystem **system); 
 
	std::vector GetDirListing(std::string path); 
	u32      OpenFile(std::string filename, FileAccess access); 
	void     CloseFile(u32 handle); 
	size_t   ReadFile(u32 handle, u8 *pointer, s64 size); 
	size_t   WriteFile(u32 handle, const u8 *pointer, s64 size); 
	size_t   SeekFile(u32 handle, s32 position, FileMove type); 
	FileInfo GetFileInfo(std::string filename); 
	bool     OwnsHandle(u32 handle) {return false;} 
	virtual void ChDir(std::string dir) {currentDirectory = dir;} 
	inline size_t GetSeekPos(u32 handle) 
	{ 
		return SeekFile(handle, 0, FILEMOVE_CURRENT); 
	} 
};