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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <memory>
#include <string>
#include <vector>
#include "common/common_types.h"
#include "core/file_sys/archive_backend.h"
#include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
/**
* Helper which implements an interface to deal with IVFC images used in some archives
* This should be subclassed by concrete archive types, which will provide the
* input data (load the raw IVFC archive) and override any required methods
*/
class IVFCArchive : public ArchiveBackend {
public:
IVFCArchive(std::shared_ptr<const std::vector<u8>> data);
std::string GetName() const override;
std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const override;
bool DeleteFile(const Path& path) const override;
bool RenameFile(const Path& src_path, const Path& dest_path) const override;
bool DeleteDirectory(const Path& path) const override;
ResultCode CreateFile(const Path& path, u32 size) const override;
bool CreateDirectory(const Path& path) const override;
bool RenameDirectory(const Path& src_path, const Path& dest_path) const override;
std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const override;
protected:
std::shared_ptr<const std::vector<u8>> data;
};
class IVFCFile : public FileBackend {
public:
IVFCFile(std::shared_ptr<const std::vector<u8>> data) : data(data) {}
bool Open() override { return true; }
size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override;
size_t GetSize() const override;
bool SetSize(const u64 size) const override;
bool Close() const override { return false; }
void Flush() const override { }
private:
std::shared_ptr<const std::vector<u8>> data;
};
class IVFCDirectory : public DirectoryBackend {
public:
bool Open() override { return false; }
u32 Read(const u32 count, Entry* entries) override { return 0; }
bool Close() const override { return false; }
};
} // namespace FileSys
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