duplicati/Duplicati/Library/Main/Backend/BackendManager.WaitForEmptyOperation.cs
Kenneth Skovhede d99f74ed94
Rewrite the backend manager. (#5896)
* 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
2025-01-28 08:54:50 +01:00

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1.2 KiB
C#

using System;
using System.Threading;
using System.Threading.Tasks;
using Duplicati.Library.Interface;
namespace Duplicati.Library.Main.Backend;
#nullable enable
partial class BackendManager
{
/// <summary>
/// Represents a pending QuotaInfo operation
/// </summary>
/// <remarks>
/// Creates a new WaitForEmptyOperation
/// </remarks>
/// <param name="context">The execution context</param>
/// <param name="cancelToken">The cancellation token</param>
private class WaitForEmptyOperation(ExecuteContext context, CancellationToken cancelToken)
: PendingOperation<bool>(context, true, cancelToken)
{
/// <summary>
/// The operation type
/// </summary>
public override BackendActionType Operation => BackendActionType.WaitForEmpty;
/// <summary>
/// Executes the operation
/// </summary>
/// <param name="backend">The backend to get the quota info from</param>
/// <param name="cancelToken">The cancellation token</param>
/// <returns>An awaitable task</returns>
public override Task<bool> ExecuteAsync(IBackend backend, CancellationToken cancelToken)
=> Task.FromResult(true);
}
}