mirror of
https://github.com/libretro/ppsspp.git
synced 2024-11-28 19:00:23 +00:00
127 lines
4.1 KiB
C++
127 lines
4.1 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 <string>
|
|
#include <vector>
|
|
|
|
#include "base/mutex.h"
|
|
#include "Core/FileSystems/FileSystem.h"
|
|
|
|
class MetaFileSystem : public IHandleAllocator, public IFileSystem {
|
|
private:
|
|
s32 current;
|
|
struct MountPoint {
|
|
std::string prefix;
|
|
IFileSystem *system;
|
|
|
|
bool operator == (const MountPoint &other) const {
|
|
return prefix == other.prefix && system == other.system;
|
|
}
|
|
};
|
|
|
|
std::vector<MountPoint> fileSystems;
|
|
|
|
typedef std::map<int, std::string> currentDir_t;
|
|
currentDir_t currentDir;
|
|
|
|
std::string startingDirectory;
|
|
int lastOpenError;
|
|
recursive_mutex lock;
|
|
|
|
public:
|
|
MetaFileSystem() {
|
|
current = 6; // what?
|
|
}
|
|
|
|
void Mount(std::string prefix, IFileSystem *system);
|
|
void Unmount(std::string prefix, IFileSystem *system);
|
|
void Remount(IFileSystem *oldSystem, IFileSystem *newSystem);
|
|
|
|
IFileSystem *GetSystem(const std::string &prefix);
|
|
IFileSystem *GetSystemFromFilename(const std::string &filename);
|
|
|
|
void ThreadEnded(int threadID);
|
|
|
|
void Shutdown();
|
|
|
|
u32 GetNewHandle() override {
|
|
u32 res = current++;
|
|
if (current < 0) {
|
|
current = 0;
|
|
}
|
|
return res;
|
|
}
|
|
void FreeHandle(u32 handle) override {}
|
|
|
|
void DoState(PointerWrap &p) override;
|
|
|
|
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;
|
|
}
|
|
|
|
std::string NormalizePrefix(std::string prefix) const;
|
|
|
|
// Only possible if a file system is a DirectoryFileSystem or similar.
|
|
bool GetHostPath(const std::string &inpath, std::string &outpath) override;
|
|
|
|
std::vector<PSPFileInfo> GetDirListing(std::string path) override;
|
|
u32 OpenFile(std::string filename, FileAccess access, const char *devicename = NULL) override;
|
|
u32 OpenWithError(int &error, std::string filename, FileAccess access, const char *devicename = NULL);
|
|
void CloseFile(u32 handle) override;
|
|
size_t ReadFile(u32 handle, u8 *pointer, s64 size) override;
|
|
size_t ReadFile(u32 handle, u8 *pointer, s64 size, int &usec) override;
|
|
size_t WriteFile(u32 handle, const u8 *pointer, s64 size) override;
|
|
size_t WriteFile(u32 handle, const u8 *pointer, s64 size, int &usec) override;
|
|
size_t SeekFile(u32 handle, s32 position, FileMove type) override;
|
|
PSPFileInfo GetFileInfo(std::string filename) override;
|
|
bool OwnsHandle(u32 handle) override { return false; }
|
|
inline size_t GetSeekPos(u32 handle)
|
|
{
|
|
return SeekFile(handle, 0, FILEMOVE_CURRENT);
|
|
}
|
|
|
|
virtual int ChDir(const std::string &dir);
|
|
|
|
bool MkDir(const std::string &dirname) override;
|
|
bool RmDir(const std::string &dirname) override;
|
|
int RenameFile(const std::string &from, const std::string &to) override;
|
|
bool RemoveFile(const std::string &filename) override;
|
|
int Ioctl(u32 handle, u32 cmd, u32 indataPtr, u32 inlen, u32 outdataPtr, u32 outlen, int &usec) override;
|
|
int DevType(u32 handle) override;
|
|
int Flags() override { return 0; }
|
|
u64 FreeSpace(const std::string &path) override;
|
|
|
|
// Convenience helper - returns < 0 on failure.
|
|
int ReadEntireFile(const std::string &filename, std::vector<u8> &data);
|
|
|
|
void SetStartingDirectory(const std::string &dir) {
|
|
lock_guard guard(lock);
|
|
startingDirectory = dir;
|
|
}
|
|
};
|