Files
Aaru/DiscImageChef.DiscImages/QCOW/QCOW.cs

89 lines
3.5 KiB
C#

// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : QCOW.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Manages QEMU Copy-On-Write disk images.
//
// --[ 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 © 2011-2019 Natalia Portillo
// ****************************************************************************/
using System.Collections.Generic;
using System.IO;
using DiscImageChef.CommonTypes.Enums;
using DiscImageChef.CommonTypes.Interfaces;
using DiscImageChef.CommonTypes.Structs;
namespace DiscImageChef.DiscImages
{
public partial class Qcow : IWritableImage
{
Dictionary<ulong, byte[]> clusterCache;
int clusterSectors;
int clusterSize;
ImageInfo imageInfo;
Stream imageStream;
ulong l1Mask;
int l1Shift;
uint l1Size;
ulong[] l1Table;
ulong l2Mask;
int l2Size;
Dictionary<ulong, ulong[]> l2TableCache;
int maxClusterCache;
int maxL2TableCache;
QCowHeader qHdr;
Dictionary<ulong, byte[]> sectorCache;
ulong sectorMask;
FileStream writingStream;
public Qcow()
{
imageInfo = new ImageInfo
{
ReadableSectorTags = new List<SectorTagType>(),
ReadableMediaTags = new List<MediaTagType>(),
HasPartitions = false,
HasSessions = false,
Version = "1",
Application = "QEMU",
ApplicationVersion = null,
Creator = null,
Comments = null,
MediaManufacturer = null,
MediaModel = null,
MediaSerialNumber = null,
MediaBarcode = null,
MediaPartNumber = null,
MediaSequence = 0,
LastMediaSequence = 0,
DriveManufacturer = null,
DriveModel = null,
DriveSerialNumber = null,
DriveFirmwareRevision = null
};
}
}
}