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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 <array>
#include <cstddef>
#include "common/common_types.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
// Structure of a directory entry, from http://3dbrew.org/wiki/FSDir:Read#Entry_format
const size_t FILENAME_LENGTH = 0x20C / 2;
struct Entry {
char16_t filename[FILENAME_LENGTH]; // Entry name (UTF-16, null-terminated)
std::array<char, 9> short_name; // 8.3 file name ('longfilename' -> 'LONGFI~1', null-terminated)
char unknown1; // unknown (observed values: 0x0A, 0x70, 0xFD)
std::array<char, 4> extension; // 8.3 file extension (set to spaces for directories, null-terminated)
char unknown2; // unknown (always 0x01)
char unknown3; // unknown (0x00 or 0x08)
char is_directory; // directory flag
char is_hidden; // hidden flag
char is_archive; // archive flag
char is_read_only; // read-only flag
u64 file_size; // file size (for files only)
};
static_assert(sizeof(Entry) == 0x228, "Directory Entry struct isn't exactly 0x228 bytes long!");
static_assert(offsetof(Entry, short_name) == 0x20C, "Wrong offset for short_name in Entry.");
static_assert(offsetof(Entry, extension) == 0x216, "Wrong offset for extension in Entry.");
static_assert(offsetof(Entry, is_archive) == 0x21E, "Wrong offset for is_archive in Entry.");
static_assert(offsetof(Entry, file_size) == 0x220, "Wrong offset for file_size in Entry.");
class DirectoryBackend : NonCopyable {
public:
DirectoryBackend() { }
virtual ~DirectoryBackend() { }
/**
* Open the directory
* @return true if the directory opened correctly
*/
virtual bool Open() = 0;
/**
* List files contained in the directory
* @param count Number of entries to return at once in entries
* @param entries Buffer to read data into
* @return Number of entries listed
*/
virtual u32 Read(const u32 count, Entry* entries) = 0;
/**
* Close the directory
* @return true if the directory closed correctly
*/
virtual bool Close() const = 0;
};
} // namespace FileSys
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