ppsspp/Core/FileSystems/MetaFileSystem.h
2013-07-08 12:35:07 +08:00

100 lines
2.8 KiB
C++

// Copyright (c) 2012- PPSSPP 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 or later versions.
// 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 git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#pragma once
#include "FileSystem.h"
class MetaFileSystem : public IHandleAllocator, public IFileSystem
{
private:
u32 current;
struct MountPoint
{
std::string prefix;
IFileSystem *system;
};
std::vector<MountPoint> fileSystems;
typedef std::map<int, std::string> currentDir_t;
currentDir_t currentDir;
std::string startingDirectory;
public:
MetaFileSystem()
{
current = 6; // what?
}
void Mount(std::string prefix, IFileSystem *system);
void Unmount(IFileSystem *system);
void ThreadEnded(int threadID);
void Shutdown();
u32 GetNewHandle() {return current++;}
void FreeHandle(u32 handle) {}
virtual void DoState(PointerWrap &p);
IFileSystem *GetHandleOwner(u32 handle);
bool MapFilePath(const std::string &inpath, std::string &outpath, MountPoint **system);
inline bool MapFilePath(const std::string &_inpath, std::string &outpath, IFileSystem **system)
{
MountPoint *mountPoint;
if (MapFilePath(_inpath, outpath, &mountPoint))
{
*system = mountPoint->system;
return true;
}
return false;
}
// Only possible if a file system is a DirectoryFileSystem or similar.
bool GetHostPath(const std::string &inpath, std::string &outpath);
std::vector<PSPFileInfo> GetDirListing(std::string path);
u32 OpenFile(std::string filename, FileAccess access, const char *devicename=NULL);
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);
PSPFileInfo GetFileInfo(std::string filename);
bool OwnsHandle(u32 handle) {return false;}
inline size_t GetSeekPos(u32 handle)
{
return SeekFile(handle, 0, FILEMOVE_CURRENT);
}
virtual int ChDir(const std::string &dir);
virtual bool MkDir(const std::string &dirname);
virtual bool RmDir(const std::string &dirname);
virtual int RenameFile(const std::string &from, const std::string &to);
virtual bool RemoveFile(const std::string &filename);
// TODO: void IoCtl(...)
void SetStartingDirectory(const std::string &dir) {
startingDirectory = dir;
}
};