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v17.0.0 - Bringing more abstractions from upper projects
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InterlockLedger.Commons/Extensions/System/TaskOfExtensions.cs
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| // ****************************************************************************************************************************** | ||
| // | ||
| // Copyright (c) 2018-2023 InterlockLedger Network | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are met | ||
| // | ||
| // * Redistributions of source code must retain the above copyright notice, this | ||
| // list of conditions and the following disclaimer. | ||
| // | ||
| // * Redistributions in binary form must reproduce the above copyright notice, | ||
| // this list of conditions and the following disclaimer in the documentation | ||
| // and/or other materials provided with the distribution. | ||
| // | ||
| // * Neither the name of the copyright holder nor the names of its | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES, LOSS OF USE, DATA, OR PROFITS, OR BUSINESS INTERRUPTION) HOWEVER | ||
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
| // ****************************************************************************************************************************** | ||
|
|
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| using System.Collections.Concurrent; | ||
| using System.Diagnostics; | ||
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| namespace System; | ||
| public static class TaskOfExtensions | ||
| { | ||
| public static T WaitResult<T>(this Task<T> task) => task.GetAwaiter().GetResult(); | ||
| public static void WaitResult(this Task task) => task.GetAwaiter().GetResult(); | ||
|
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| private static ConcurrentDictionary<string, ThreadWithQueue>? _threads = new(); | ||
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| public static void RunOnThread(this Task task, string name, CancellationToken token, bool threadReuse = false) => | ||
| RunOnThread(task, name, () => DoneWith(name), token, threadReuse); | ||
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| public static void RunOnThread(this Task task, string name, Action done, CancellationToken token, bool threadReuse = false) { | ||
| if (token.IsCancellationRequested) | ||
| return; | ||
| _threads?.AddOrUpdate(name.Required(), | ||
| addValueFactory: _ => new ThreadWithQueue(name, removeByName), | ||
| updateValueFactory: (_, twq) => twq) | ||
| .Enqueue(task, done, threadReuse, token); | ||
| } | ||
|
|
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| private static void removeByName(string? name) { | ||
| if (!name.IsBlank()) | ||
| _ = (_threads?.TryRemove(name, out _)); | ||
| } | ||
| private static void DoneWith(string name) => | ||
| Debug.Print($"Done '{name}'"); | ||
|
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| public static void StopAllRunOnThreads() { | ||
| if (_threads is not null) { | ||
| foreach (var thread in _threads.Values) { | ||
| Debug.Print($"Disposing of thread '{thread.Name}'"); | ||
| thread.Dispose(); | ||
| } | ||
| } | ||
| _threads = null; | ||
| } | ||
| } | ||
|
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| internal sealed class ThreadWithQueue : AbstractDisposable | ||
| { | ||
| private sealed record EnqueuedTask(Task task, Action done, CancellationToken token) | ||
| { | ||
| public void Run() { | ||
| try { | ||
| if (!token.IsCancellationRequested && !task.IsCompleted) | ||
| task.Wait(token); | ||
| } catch (OperationCanceledException) { | ||
| } catch (Exception ex) { | ||
| Debug.Print(ex.ToString()); | ||
| } finally { | ||
| done(); | ||
| } | ||
| } | ||
| } | ||
|
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| private ConcurrentQueue<EnqueuedTask>? _tasks; | ||
| private Thread? _thread; | ||
| private Action<string?>? _removeFromCollection; | ||
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| public string? Name => _thread?.Name; | ||
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| public ThreadWithQueue(string name, Action<string?> removeFromCollection) { | ||
| _removeFromCollection = removeFromCollection.Required(); | ||
| _tasks = new(); | ||
| _thread = new Thread(Loop) { | ||
| Name = name.Required(), | ||
| Priority = ThreadPriority.Normal | ||
| }; | ||
| _thread.Start(); | ||
| } | ||
|
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| private void Loop() { | ||
| while (_tasks is not null) { | ||
| if (_tasks.TryDequeue(out var task)) { | ||
| task.Run(); | ||
| } else { | ||
| Thread.Sleep(1000); | ||
| } | ||
| _ = Thread.Yield(); | ||
| } | ||
| } | ||
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| public void Enqueue(Task task, Action done, bool threadReuse, CancellationToken token) => | ||
| _tasks?.Enqueue(new EnqueuedTask(task, Done(done, threadReuse), token)); | ||
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| private Action Done(Action done, bool threadReuse) => | ||
| () => { | ||
| done(); | ||
| if (!threadReuse) | ||
| Dispose(); | ||
| }; | ||
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| protected override void DisposeManagedResources() { | ||
| _tasks = null; | ||
| _removeFromCollection?.Invoke(Name); | ||
| _thread = null; | ||
| _removeFromCollection = null; | ||
| } | ||
| } | ||
|
|
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