Files
Aaru/Aaru.Images/QED/Constants.cs

57 lines
2.3 KiB
C#

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Constants.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Contains constants for QEMU Enhanced 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 © 2011-2025 Natalia Portillo
// ****************************************************************************/
using System.Diagnostics.CodeAnalysis;
namespace Aaru.Images;
[SuppressMessage("ReSharper", "UnusedMember.Local")]
public sealed partial class Qed
{
/// <summary>Magic number: 'Q', 'E', 'D', 0x00</summary>
const uint QED_MAGIC = 0x00444551;
/// <summary>Mask of unsupported incompatible features</summary>
const ulong QED_FEATURE_MASK = 0xFFFFFFFFFFFFFFF8;
/// <summary>File is differential (has a backing file)</summary>
const ulong QED_FEATURE_BACKING_FILE = 0x01;
/// <summary>Image needs a consistency check before writing</summary>
const ulong QED_FEATURE_NEEDS_CHECK = 0x02;
/// <summary>Backing file is a raw disk image</summary>
const ulong QED_FEATURE_RAW_BACKING = 0x04;
const int MAX_CACHE_SIZE = 16777216;
const uint MAX_CACHED_SECTORS = MAX_CACHE_SIZE / 512;
const uint DEFAULT_CLUSTER_SIZE = 65536;
const uint DEFAULT_TABLE_SIZE = 4;
}