dolphin/Source/Core/DiscIO/Filesystem.h
JosJuice c7e747d775 DiscIO: Improve IVolume::Read32 error handling
Callers can now check whether reads fail, either by checking the return
value or by setting the buffer to a known bad value and seeing if it stays
untouched. I've added error checks to FileSystemGCWii and Boot_BS2Emu,
but not to Boot since it doesn't check any of its other reads either.
2015-12-14 09:38:21 +01:00

62 lines
1.5 KiB
C++

// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <string>
#include <vector>
#include "Common/CommonTypes.h"
namespace DiscIO
{
class IVolume;
// file info of an FST entry
struct SFileInfo
{
u64 m_NameOffset = 0u;
u64 m_Offset = 0u;
u64 m_FileSize = 0u;
std::string m_FullPath;
bool IsDirectory() const { return (m_NameOffset & 0xFF000000) != 0; }
SFileInfo(u64 name_offset, u64 offset, u64 filesize) :
m_NameOffset(name_offset),
m_Offset(offset),
m_FileSize(filesize)
{ }
SFileInfo (SFileInfo const&) = default;
SFileInfo () = default;
};
class IFileSystem
{
public:
IFileSystem(const IVolume *_rVolume);
virtual ~IFileSystem();
virtual bool IsValid() const = 0;
virtual const std::vector<SFileInfo>& GetFileList() = 0;
virtual u64 GetFileSize(const std::string& _rFullPath) = 0;
virtual u64 ReadFile(const std::string& _rFullPath, u8* _pBuffer, u64 _MaxBufferSize, u64 _OffsetInFile = 0) = 0;
virtual bool ExportFile(const std::string& _rFullPath, const std::string& _rExportFilename) = 0;
virtual bool ExportApploader(const std::string& _rExportFolder) const = 0;
virtual bool ExportDOL(const std::string& _rExportFolder) const = 0;
virtual const std::string GetFileName(u64 _Address) = 0;
virtual u64 GetBootDOLOffset() const = 0;
virtual u32 GetBootDOLSize(u64 dol_offset) const = 0;
protected:
const IVolume *m_rVolume;
};
std::unique_ptr<IFileSystem> CreateFileSystem(const IVolume* volume);
} // namespace