调用C#函数Timeout研究

做了一个函数timeout的简单研究，代码如下：

private void button1_Click(object sender, RoutedEventArgs e)
{
CallFunctionWithTimeout(GetResult, 10, 20, 2 * 1000, GetResultCallback, GetResultTimeoutCallback);
}

private int GetResult(int arg1, int arg2)
{
Thread.Sleep(5 * 1000);
return arg1 + arg2;
}

private void GetResultCallback(int result)
{
System.Diagnostics.Trace.WriteLine("Total: " + result);
}

private void GetResultTimeoutCallback()
{
System.Diagnostics.Trace.WriteLine("The call is timeout.");
}

public static void CallFunctionWithTimeout<T>(Action<T> function, T arg, int timeout, Action callback, Action timeoutCallback)
{
if (function == null)
{
throw new ArgumentNullException("function");
}
CallFunctionWithTimeout(new Action(() => function(arg)), timeout, callback, timeoutCallback);
}

public static void CallFunctionWithTimeout<T1, T2>(Action<T1, T2> function, T1 arg1, T2 arg2, int timeout, Action callback, Action timeoutCallback)
{
if (function == null)
{
throw new ArgumentNullException("function");
}
CallFunctionWithTimeout(new Action(() => function(arg1, arg2)), timeout, callback, timeoutCallback);
}

public static void CallFunctionWithTimeout(Action function, int timeout, Action callback, Action timeoutCallback)
{
if (function == null)
{
throw new ArgumentNullException("function");
}
Action action = new Action(() =>
{
IAsyncResult ar = function.BeginInvoke(null, null);
if (ar.AsyncWaitHandle.WaitOne(timeout, false))
{
if (callback != null)
{
callback();
}
}
else
{
System.Diagnostics.Trace.WriteLine(string.Format("Call function {0} is timeout.", function.Method.Name));
if (timeoutCallback != null)
{
timeoutCallback();
}
}
});

action.BeginInvoke(null, null);
}

public static void CallFunctionWithTimeout<T, TResult>(Func<T, TResult> function, T arg, int timeout, Action<TResult> callback, Action timeoutCallback)
{
if (function == null)
{
throw new ArgumentNullException("function");
}
CallFunctionWithTimeout(new Func<TResult>(() => { return function(arg); }), timeout, callback, timeoutCallback);
}

public static void CallFunctionWithTimeout<T1, T2, TResult>(Func<T1, T2, TResult> function, T1 arg1, T2 arg2, int timeout, Action<TResult> callback, Action timeoutCallback)
{
if (function == null)
{
throw new ArgumentNullException("function");
}
CallFunctionWithTimeout(new Func<TResult>(() => {return function(arg1, arg2);}), timeout, callback, timeoutCallback);
}

public static void CallFunctionWithTimeout<TResult>(Func<TResult> function, int timeout, Action<TResult> callback, Action timeoutCallback)
{
if (function == null)
{
throw new ArgumentNullException("function");
}

Action action = new Action(() =>
{
IAsyncResult ar = function.BeginInvoke(null, null);
if (ar.AsyncWaitHandle.WaitOne(timeout, false))
{
if (callback != null)
{
callback(function.EndInvoke(ar));
}
}
else
{
System.Diagnostics.Trace.WriteLine(string.Format("Call function {0} is timeout.", function.Method.Name));
if (timeoutCallback != null)
{
timeoutCallback();
}
}
});

action.BeginInvoke(null, null);
}

希望对大家有所帮助，也希望大家拍砖。

摘自:http://www.cnblogs.com/havefun/archive/2012/08/21/2649540.html