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