Kenneth Skovhede
f690297d1b
This PR adds a new locking service that keeps track of which local databases are currently in use by the server. If a database is in use due to a running task, immediate calls will now be rejected. Prior to this change, immediate calls could interfere with the running task, causing a backup to fail abruptly if the user attempted to check the logs or restore.
118 lines
4.5 KiB
C#
118 lines
4.5 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 Duplicati.WebserverCore.Abstractions;
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using Duplicati.WebserverCore.Dto;
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using Duplicati.WebserverCore.Exceptions;
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namespace Duplicati.WebserverCore.Services;
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/// <summary>
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/// Provides functionality to manage and retrieve information about tasks in the task queue.
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/// </summary>
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/// <param name="queueRunnerService">The service responsible for running and managing tasks in the queue.</param>
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public class TaskQueueService(IQueueRunnerService queueRunnerService) : ITaskQueueService
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{
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/// <inheritdoc/>
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public GetTaskStateDto GetTaskInfo(long taskid)
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{
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var task = queueRunnerService.GetCurrentTask();
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var tasks = queueRunnerService.GetCurrentTasks();
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if (task != null && task.TaskID == taskid)
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return new Dto.GetTaskStateDto("Running", taskid, task.TaskStarted, task.TaskFinished);
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if (tasks.FirstOrDefault(x => x.TaskID == taskid) == null)
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{
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var res = queueRunnerService.GetCachedTaskResults(taskid);
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if (res == null)
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throw new NotFoundException("No such task found");
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return new GetTaskStateDto(
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Status: res.Exception == null ? "Completed" : "Failed",
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ID: taskid,
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TaskStarted: res?.TaskStarted,
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TaskFinished: res?.TaskFinished,
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ErrorMessage: res?.Exception?.Message,
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Exception: res?.Exception?.ToString()
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);
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}
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return new GetTaskStateDto("Waiting", taskid, null, null);
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}
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/// <inheritdoc/>
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public IEnumerable<GetTaskStateDto> GetTaskQueue()
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{
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var cur = queueRunnerService.GetCurrentTask();
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var n = queueRunnerService.GetCurrentTasks();
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if (cur != null)
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n.Insert(0, cur);
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return n.Select(x =>
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{
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var res = queueRunnerService.GetCachedTaskResults(x.TaskID);
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return new GetTaskStateDto(
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Status: x.TaskFinished == null ? "Running" : (res?.Exception == null ? "Completed" : "Failed"),
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ID: x.TaskID,
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TaskStarted: x.TaskStarted,
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TaskFinished: x.TaskFinished,
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ErrorMessage: res?.Exception?.Message,
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Exception: res?.Exception?.ToString()
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);
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});
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}
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/// <inheritdoc/>
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public Task StopTaskAsync(long taskid)
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=> StopOrAbortTaskAsync(taskid, false);
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/// <inheritdoc/>
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public Task AbortTaskAsync(long taskid)
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=> StopOrAbortTaskAsync(taskid, true);
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/// <summary>
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/// Stops or aborts a task based on the provided task ID.
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/// </summary>
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/// <param name="taskid">The ID of the task to stop or abort.</param>
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/// <param name="abort">If true, the task will be aborted; otherwise, it will be stopped gracefully.</param>
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private async Task StopOrAbortTaskAsync(long taskid, bool abort)
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{
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var task = queueRunnerService.GetCurrentTask();
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var tasks = queueRunnerService.GetCurrentTasks();
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if (task != null)
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tasks.Insert(0, task);
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task = tasks.FirstOrDefault(x => x.TaskID == taskid);
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if (task == null)
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throw new NotFoundException("No such task found");
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queueRunnerService.CancelCurrentTaskLockWait(task.TaskID);
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if (abort)
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await task.AbortAsync().ConfigureAwait(false);
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else
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await task.StopAsync().ConfigureAwait(false);
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}
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} |