53 lines
1.7 KiB
C#
53 lines
1.7 KiB
C#
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// Copyright (c) Microsoft. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace System.Threading.Tasks.Dataflow.Internal.Threading
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{
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internal delegate void TimerCallback(object state);
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internal sealed class Timer : CancellationTokenSource, IDisposable
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{
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internal Timer(TimerCallback callback, object state, int dueTime, int period)
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{
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Debug.Assert(period == -1, "This stub implementation only supports dueTime.");
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Task.Delay(dueTime, Token).ContinueWith((t, s) =>
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{
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var tuple = (Tuple<TimerCallback, object>)s;
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tuple.Item1(tuple.Item2);
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}, Tuple.Create(callback, state), CancellationToken.None,
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TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.OnlyOnRanToCompletion,
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TaskScheduler.Default);
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}
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public new void Dispose() { base.Cancel(); }
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}
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internal sealed class Thread
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{
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internal static bool Yield() { return true; }
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}
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internal delegate void WaitCallback(object state);
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internal sealed class ThreadPool
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{
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private static readonly SynchronizationContext _ctx = new SynchronizationContext();
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internal static void QueueUserWorkItem(WaitCallback callback, object state)
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{
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_ctx.Post(s =>
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{
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var tuple = (Tuple<WaitCallback, object>)s;
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tuple.Item1(tuple.Item2);
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}, Tuple.Create(callback, state));
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}
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}
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}
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