55 lines
1.7 KiB
C#
55 lines
1.7 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Runtime
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{
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using System;
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using System.Threading;
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// An AsyncResult that schedules work for later on the IOThreadScheduler
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abstract class ScheduleActionItemAsyncResult : AsyncResult
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{
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static Action<object> doWork = new Action<object>(DoWork);
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// Implement your own constructor taking in necessary parameters
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// Constructor needs to call "Schedule()" to schedule work
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// Cache all parameters
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// Implement OnDoWork to do work!
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protected ScheduleActionItemAsyncResult(AsyncCallback callback, object state) : base(callback, state) { }
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protected void Schedule()
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{
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ActionItem.Schedule(doWork, this);
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}
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static void DoWork(object state)
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{
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ScheduleActionItemAsyncResult thisPtr = (ScheduleActionItemAsyncResult)state;
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Exception completionException = null;
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try
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{
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thisPtr.OnDoWork();
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}
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catch (Exception ex)
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{
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if (Fx.IsFatal(ex))
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{
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throw;
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}
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completionException = ex;
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}
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thisPtr.Complete(false, completionException);
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}
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protected abstract void OnDoWork();
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public static void End(IAsyncResult result)
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{
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AsyncResult.End<ScheduleActionItemAsyncResult>(result);
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}
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}
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}
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