// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "common/common_types.h"
#include "common/bit_field.h"
#include "core/file_sys/file.h"
#include "core/file_sys/directory.h"
#include "core/hle/kernel/kernel.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
union Mode {
u32 hex;
BitField<0, 1, u32> read_flag;
BitField<1, 1, u32> write_flag;
BitField<2, 1, u32> create_flag;
};
class Archive : NonCopyable {
public:
/// Supported archive types
enum class IdCode : u32 {
RomFS = 0x00000003,
SaveData = 0x00000004,
ExtSaveData = 0x00000006,
SharedExtSaveData = 0x00000007,
SystemSaveData = 0x00000008,
SDMC = 0x00000009,
SDMCWriteOnly = 0x0000000A,
};
Archive() { }
virtual ~Archive() { }
/**
* Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
* @return IdCode of the archive
*/
virtual IdCode GetIdCode() const = 0;
/**
* Open a file specified by its path, using the specified mode
* @param path Path relative to the archive
* @param mode Mode to open the file with
* @return Opened file, or nullptr
*/
virtual std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const = 0;
/**
* Open a directory specified by its path
* @param path Path relative to the archive
* @return Opened directory, or nullptr
*/
virtual std::unique_ptr<Directory> OpenDirectory(const std::string& path) const = 0;
/**
* Read data from the archive
* @param offset Offset in bytes to start reading data from
* @param length Length in bytes of data to read from archive
* @param buffer Buffer to read data into
* @return Number of bytes read
*/
virtual size_t Read(const u64 offset, const u32 length, u8* buffer) const = 0;
/**
* Write data to the archive
* @param offset Offset in bytes to start writing data to
* @param length Length in bytes of data to write to archive
* @param buffer Buffer to write data from
* @param flush The flush parameters (0 == do not flush)
* @return Number of bytes written
*/
virtual size_t Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) = 0;
/**
* Get the size of the archive in bytes
* @return Size of the archive in bytes
*/
virtual size_t GetSize() const = 0;
/**
* Set the size of the archive in bytes
*/
virtual void SetSize(const u64 size) = 0;
};
} // namespace FileSys
