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https://github.com/aaru-dps/Aaru.git
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Natalia Portillo
828c1e3da0
Introduces constant fields for respective debug module names, replacing the hardcoded ones. This is done to standardize the naming convention, reduce redundancy and potentially avoid any typos or name mismatches across the project. This change makes the code more maintainable and easier to update in case module names need to be changed.
90 lines
3.5 KiB
C#
90 lines
3.5 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : QCOW2.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Manages QEMU Copy-On-Write v2 disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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using System.Collections.Generic;
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using System.IO;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.CommonTypes.Structs;
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namespace Aaru.DiscImages;
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/// <inheritdoc />
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/// <summary>Implements reading and writing QEMU's Copy On Write v2 and v3 disk images</summary>
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public sealed partial class Qcow2 : IWritableImage
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{
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Dictionary<ulong, byte[]> _clusterCache;
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int _clusterSectors;
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int _clusterSize;
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ImageInfo _imageInfo;
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Stream _imageStream;
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ulong _l1Mask;
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int _l1Shift;
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ulong[] _l1Table;
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int _l2Bits;
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ulong _l2Mask;
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int _l2Size;
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Dictionary<ulong, ulong[]> _l2TableCache;
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int _maxClusterCache;
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int _maxL2TableCache;
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Header _qHdr;
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ulong[] _refCountTable;
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Dictionary<ulong, byte[]> _sectorCache;
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ulong _sectorMask;
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FileStream _writingStream;
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public Qcow2() => _imageInfo = new ImageInfo
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{
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ReadableSectorTags = new List<SectorTagType>(),
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ReadableMediaTags = new List<MediaTagType>(),
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HasPartitions = false,
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HasSessions = false,
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Version = null,
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Application = "QEMU",
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ApplicationVersion = null,
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Creator = null,
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Comments = null,
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MediaManufacturer = null,
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MediaModel = null,
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MediaSerialNumber = null,
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MediaBarcode = null,
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MediaPartNumber = null,
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MediaSequence = 0,
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LastMediaSequence = 0,
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DriveManufacturer = null,
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DriveModel = null,
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DriveSerialNumber = null,
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DriveFirmwareRevision = null
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};
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const string MODULE_NAME = "QCOW2 plugin";
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} |