1 files changed, 138 insertions, 0 deletions
diff --git a/src/core/file_sys/file_sys.h b/src/core/file_sys/file_sys.h
new file mode 100644
index 00000000..b27e36c8
--- /dev/null
+++ b/src/core/file_sys/file_sys.h
@@ -0,0 +1,138 @@
+// 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 "common.h"
+#include "chunk_file.h"
+
+enum FileAccess {
+	FILEACCESS_NONE=0,
+	FILEACCESS_READ=1,
+	FILEACCESS_WRITE=2,
+	FILEACCESS_APPEND=4,
+	FILEACCESS_CREATE=8
+};
+
+enum FileMove {
+	FILEMOVE_BEGIN=0,
+	FILEMOVE_CURRENT=1,
+	FILEMOVE_END=2
+};
+
+enum FileType {
+	FILETYPE_NORMAL=1,
+	FILETYPE_DIRECTORY=2
+};
+
+
+class IHandleAllocator {
+public:
+	virtual ~IHandleAllocator() {}
+	virtual u32 GetNewHandle() = 0;
+	virtual void FreeHandle(u32 handle) = 0;
+};
+
+class SequentialHandleAllocator : public IHandleAllocator {
+public:
+	SequentialHandleAllocator() : handle_(1) {}
+	virtual u32 GetNewHandle() { return handle_++; }
+	virtual void FreeHandle(u32 handle) {}
+private:
+	int handle_;
+};
+
+struct FileInfo {
+	FileInfo() 
+		: size(0), access(0), exists(false), type(FILETYPE_NORMAL), isOnSectorSystem(false), startSector(0), numSectors(0) {}
+
+	void DoState(PointerWrap &p) {
+		auto s = p.Section("FileInfo", 1);
+		if (!s)
+			return;
+
+		p.Do(name);
+		p.Do(size);
+		p.Do(access);
+		p.Do(exists);
+		p.Do(type);
+		p.Do(atime);
+		p.Do(ctime);
+		p.Do(mtime);
+		p.Do(isOnSectorSystem);
+		p.Do(startSector);
+		p.Do(numSectors);
+		p.Do(sectorSize);
+	}
+
+	std::string name;
+	s64 size;
+	u32 access; //unix 777
+	bool exists;
+	FileType type;
+
+	tm atime;
+	tm ctime;
+	tm mtime;
+
+	bool isOnSectorSystem;
+	u32 startSector;
+	u32 numSectors;
+	u32 sectorSize;
+};
+
+
+class IFileSystem {
+public:
+	virtual ~IFileSystem() {}
+
+	virtual void DoState(PointerWrap &p) = 0;
+	virtual std::vector<FileInfo> GetDirListing(std::string path) = 0;
+	virtual u32      OpenFile(std::string filename, FileAccess access, const char *devicename=NULL) = 0;
+	virtual void     CloseFile(u32 handle) = 0;
+	virtual size_t   ReadFile(u32 handle, u8 *pointer, s64 size) = 0;
+	virtual size_t   WriteFile(u32 handle, const u8 *pointer, s64 size) = 0;
+	virtual size_t   SeekFile(u32 handle, s32 position, FileMove type) = 0;
+	virtual FileInfo GetFileInfo(std::string filename) = 0;
+	virtual bool     OwnsHandle(u32 handle) = 0;
+	virtual bool     MkDir(const std::string &dirname) = 0;
+	virtual bool     RmDir(const std::string &dirname) = 0;
+	virtual int      RenameFile(const std::string &from, const std::string &to) = 0;
+	virtual bool     RemoveFile(const std::string &filename) = 0;
+	virtual bool     GetHostPath(const std::string &inpath, std::string &outpath) = 0;
+};
+
+
+class EmptyFileSystem : public IFileSystem {
+public:
+	virtual void DoState(PointerWrap &p) {}
+	std::vector<FileInfo> GetDirListing(std::string path) {std::vector<FileInfo> vec; return vec;}
+	u32      OpenFile(std::string filename, FileAccess access, const char *devicename=NULL) {return 0;}
+	void     CloseFile(u32 handle) {}
+	size_t   ReadFile(u32 handle, u8 *pointer, s64 size) {return 0;}
+	size_t   WriteFile(u32 handle, const u8 *pointer, s64 size) {return 0;}
+	size_t   SeekFile(u32 handle, s32 position, FileMove type) {return 0;}
+	FileInfo GetFileInfo(std::string filename) {FileInfo f; return f;}
+	bool     OwnsHandle(u32 handle) {return false;}
+	virtual bool MkDir(const std::string &dirname) {return false;}
+	virtual bool RmDir(const std::string &dirname) {return false;}
+	virtual int RenameFile(const std::string &from, const std::string &to) {return -1;}
+	virtual bool RemoveFile(const std::string &filename) {return false;}
+	virtual bool GetHostPath(const std::string &inpath, std::string &outpath) {return false;}
+};
+
+