jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <AK/Types.h>
10#include <Kernel/FileSystem/ISO9660FS/Definitions.h>
11#include <Kernel/FileSystem/ISO9660FS/DirectoryEntry.h>
12#include <Kernel/FileSystem/ISO9660FS/FileSystem.h>
13#include <Kernel/KBuffer.h>
14
15namespace Kernel {
16
17class ISO9660DirectoryIterator {
18public:
19 ISO9660DirectoryIterator(ISO9660FS& fs, ISO::DirectoryRecordHeader const& header);
20
21 ISO::DirectoryRecordHeader const* operator*() { return m_current_header; }
22
23 // Recurses into subdirectories. May fail.
24 ErrorOr<bool> next();
25
26 // Skips to the directory in the list, returns whether there was a next one.
27 // No allocation here, cannot fail.
28 bool skip();
29
30 bool go_up();
31 bool done() const;
32
33private:
34 ErrorOr<void> read_directory_contents();
35
36 void get_header();
37
38 ISO9660FS& m_fs;
39
40 ISO9660FSDirectoryState m_current_directory;
41 ISO::DirectoryRecordHeader const* m_current_header { nullptr };
42
43 Vector<ISO9660FSDirectoryState> m_directory_stack;
44};
45
46}