89 lines
3.5 KiB
C#
89 lines
3.5 KiB
C#
// Copyright (C) 2026, 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;
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using System.Threading;
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using System.Threading.Tasks;
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using Duplicati.Library.Interface;
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namespace Duplicati.Library.Main.Backend;
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#nullable enable
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partial class BackendManager
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{
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/// <summary>
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/// Represents a pending get object lock operation
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/// </summary>
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private class GetObjectLockOperation : PendingOperation<DateTime?>
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{
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/// <summary>
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/// The log tag for this class
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/// </summary>
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private static readonly string LOGTAG = Logging.Log.LogTagFromType<GetObjectLockOperation>();
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/// <summary>
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/// The remote filename to check for lock
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/// </summary>
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public override string RemoteFilename { get; }
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/// <summary>
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/// The operation type
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/// </summary>
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public override BackendActionType Operation => BackendActionType.GetObjectLock;
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/// <summary>
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/// Creates a new GetObjectLockOperation
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/// </summary>
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/// <param name="remoteName">The remote file name to check</param>
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/// <param name="context">The execution context</param>
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/// <param name="cancelToken">The cancellation token</param>
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public GetObjectLockOperation(string remoteName, ExecuteContext context, CancellationToken cancelToken)
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: base(context, true, cancelToken)
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{
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RemoteFilename = remoteName;
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}
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/// <inheritdoc />
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public override async Task<DateTime?> ExecuteAsync(IBackend backend, CancellationToken cancelToken)
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{
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if (backend is not ILockingBackend lockingBackend)
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throw new NotSupportedException("Backend does not support object locking operations");
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Context.Statwriter.SendEvent(BackendActionType.GetObjectLock, BackendEventType.Started, RemoteFilename, 0);
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try
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{
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return await lockingBackend.GetObjectLockUntilAsync(RemoteFilename, cancelToken).ConfigureAwait(false);
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}
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catch (Exception ex)
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{
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Logging.Log.WriteWarningMessage(LOGTAG, "GetObjectLockFailed", ex, "Failed to get object lock for {0}: {1}", RemoteFilename, ex.Message);
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throw;
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}
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finally
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{
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Context.Statwriter.SendEvent(BackendActionType.GetObjectLock, BackendEventType.Completed, RemoteFilename, 0);
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}
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}
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}
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}
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