* Rewrite the backend manager. This creates a new more logic backend manager that handles all backend operations. For each top-level operation, there is now a single backend manager instance that is passed to sub-commands. The internals of the backend manager are now rewritten to use async logic instead of threading. The design uses a single task runner that dispatches operations and honors concurrent settings and limits from one place. The logic for each operation has been moved into a separate files/classes to make it easier to understand each operation. This fixes #5804 * Fixed a few issues with not awaiting tasks * Fixed not creating empty databases * Fixed an issue with hashes not being recorded on download * Reworked the download logic to avoid attempting to decrypt the file if it has been modified. * Review fixes * Renamed db collector to better reflect the purpose. * Review fixes
71 lines
3.4 KiB
C#
71 lines
3.4 KiB
C#
// Copyright (C) 2025, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System.Threading.Tasks;
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using CoCoL;
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using Duplicati.Library.Main.Volumes;
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using Duplicati.Library.Utility;
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namespace Duplicati.Library.Main.Operation.Restore
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{
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/// <summary>
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/// Named channels for the restore operation.
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/// </summary>
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internal class Channels
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{
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/// <summary>
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/// The buffer size for the channels. The buffer size is the number of
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/// messages that can be queued up before the sender blocks.
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/// </summary>
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public static readonly int BufferSize = 8;
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/// <summary>
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/// Channel between <see cref="FileLister"/> and <see cref="FileProcessor"/>.
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/// </summary>
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public readonly IChannel<FileRequest> FilesToRestore = ChannelManager.CreateChannel<FileRequest>(buffersize: BufferSize);
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/// <summary>
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/// Channel between <see cref="VolumeManager"/> and <see cref="VolumeDownloader"/>.
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/// </summary>
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public readonly IChannel<(long, Task<TempFile>)> DownloadRequest = ChannelManager.CreateChannel<(long, Task<TempFile>)>(buffersize: BufferSize);
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/// <summary>
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/// Channel between <see cref="VolumeDownloader"/> and <see cref="VolumeDecryptor"/>
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/// </summary>
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public readonly IChannel<(long, TempFile)> DecryptRequest = ChannelManager.CreateChannel<(long, TempFile)>(buffersize: BufferSize);
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/// <summary>
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/// Channel between <see cref="VolumeManager"/> and <see cref="VolumeDecompressor"/>
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/// </summary>
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public readonly IChannel<(BlockRequest, BlockVolumeReader)> DecompressionRequest = ChannelManager.CreateChannel<(BlockRequest, BlockVolumeReader)>(buffersize: BufferSize);
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/// <summary>
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/// Channel between <see cref="VolumeManager"/> and <see cref="BlockManager"/> holding the decompressed blocks.
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public readonly IChannel<(BlockRequest, byte[])> DecompressedBlock = ChannelManager.CreateChannel<(BlockRequest, byte[])>(buffersize: BufferSize);
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/// <summary>
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/// Channel between <see cref="VolumeManager"/> and <see cref="BlockManager"/> / <see cref="VolumeDecryptor"/>, used for requesting and responding volumes to the manager.
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/// </summary>
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public readonly IChannel<object> VolumeRequestResponse = ChannelManager.CreateChannel<object>(buffersize: BufferSize);
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}
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} |