Files
Aaru/Aaru.Filesystems/AppleDOS/AppleDOS.cs

107 lines
3.5 KiB
C#

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : AppleDOS.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Apple DOS filesystem plugin.
//
// --[ License ] --------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2025 Natalia Portillo
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using Aaru.CommonTypes.AaruMetadata;
using Aaru.CommonTypes.Interfaces;
namespace Aaru.Filesystems;
/// <inheritdoc />
/// <summary>Implements the Apple DOS 3 filesystem</summary>
public sealed partial class AppleDOS : IReadOnlyFilesystem
{
// Do not translate
const string FS_TYPE = "appledos";
const string MODULE_NAME = "Apple DOS plugin";
bool _debug;
IMediaImage _device;
Encoding _encoding;
bool _mounted;
int _sectorsPerTrack;
ulong _start;
ulong _totalFileEntries;
bool _track1UsedByFiles;
bool _track2UsedByFiles;
uint _usedSectors;
Vtoc _vtoc;
static Dictionary<string, string> GetDefaultOptions() => new()
{
{
"debug", false.ToString()
}
};
#region IReadOnlyFilesystem Members
/// <inheritdoc />
public FileSystem Metadata { get; private set; }
/// <inheritdoc />
public string Name => Localization.AppleDOS_Name;
/// <inheritdoc />
public Guid Id => new("8658A1E9-B2E7-4BCC-9638-157A31B0A700\n");
/// <inheritdoc />
public string Author => Authors.NataliaPortillo;
/// <inheritdoc />
public IEnumerable<(string name, Type type, string description)> SupportedOptions => [];
/// <inheritdoc />
public Dictionary<string, string> Namespaces => null;
#endregion
#region Caches
/// <summary>Caches track/sector lists</summary>
Dictionary<string, byte[]> _extentCache;
/// <summary>Caches files</summary>
Dictionary<string, byte[]> _fileCache;
/// <summary>Caches catalog</summary>
Dictionary<string, ushort> _catalogCache;
/// <summary>Caches file size</summary>
Dictionary<string, int> _fileSizeCache;
/// <summary>Caches VTOC</summary>
byte[] _vtocBlocks;
/// <summary>Caches catalog</summary>
byte[] _catalogBlocks;
/// <summary>Caches boot code</summary>
byte[] _bootBlocks;
/// <summary>Caches file type</summary>
Dictionary<string, byte> _fileTypeCache;
/// <summary>Caches locked files</summary>
List<string> _lockedFiles;
#endregion Caches
}