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