mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-11-16 10:50:06 +00:00
7a5eda5914
* get rid of boost::optional * Remove optional references * Use std::reference_wrapper for optional references * Fix clang format * Fix clang format part 2 * Adressed feedback * Fix clang format and MacOS build
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Copyright 2018 yuzu emulator team
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
#include <string_view>
|
|
|
|
#include "core/file_sys/vfs.h"
|
|
|
|
namespace FileSys {
|
|
|
|
// An implementation of VfsFile that wraps around another VfsFile at a certain offset.
|
|
// Similar to seeking to an offset.
|
|
// If the file is writable, operations that would write past the end of the offset file will expand
|
|
// the size of this wrapper.
|
|
class OffsetVfsFile : public VfsFile {
|
|
public:
|
|
OffsetVfsFile(std::shared_ptr<VfsFile> file, std::size_t size, std::size_t offset = 0,
|
|
std::string new_name = "", VirtualDir new_parent = nullptr);
|
|
~OffsetVfsFile() override;
|
|
|
|
std::string GetName() const override;
|
|
std::size_t GetSize() const override;
|
|
bool Resize(std::size_t new_size) override;
|
|
std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
|
|
bool IsWritable() const override;
|
|
bool IsReadable() const override;
|
|
std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
|
|
std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
|
|
std::optional<u8> ReadByte(std::size_t offset) const override;
|
|
std::vector<u8> ReadBytes(std::size_t size, std::size_t offset) const override;
|
|
std::vector<u8> ReadAllBytes() const override;
|
|
bool WriteByte(u8 data, std::size_t offset) override;
|
|
std::size_t WriteBytes(const std::vector<u8>& data, std::size_t offset) override;
|
|
|
|
bool Rename(std::string_view name) override;
|
|
|
|
std::size_t GetOffset() const;
|
|
|
|
private:
|
|
std::size_t TrimToFit(std::size_t r_size, std::size_t r_offset) const;
|
|
|
|
std::shared_ptr<VfsFile> file;
|
|
std::size_t offset;
|
|
std::size_t size;
|
|
std::string name;
|
|
VirtualDir parent;
|
|
};
|
|
|
|
} // namespace FileSys
|