using System;
using System.Threading;
namespace LionelPro
{
class Program
{static void Main(string[] args)
{
int threadId = 0;
RunOnThreadPool poolDelegate = Test;
var t = new Thread(() => Test(out threadId));
t.Start();
t.Join();
Console.WriteLine("Thread id:{0}", threadId);
IAsyncResult r = poolDelegate.BeginInvoke(out threadId, Callback, "a delegate asynchronous call");
r.AsyncWaitHandle.WaitOne();
string result = poolDelegate.EndInvoke(out threadId, r);
Console.WriteLine("Thread pool worker thread id:{0}", threadId);
Console.WriteLine(result);
Thread.Sleep(TimeSpan.FromSeconds(2));
}
private delegate string RunOnThreadPool(out int threadId);
private static void Callback(IAsyncResult ar)
{Console.WriteLine("Starting a callback...");
Console.WriteLine("State passed to a callback:{0}", ar.AsyncState);
Console.WriteLine("Is thread pool thread:{0}", Thread.CurrentThread.IsThreadPoolThread);
Console.WriteLine("Thread pool worker thread id: {0}", Thread.CurrentThread.ManagedThreadId);
}
private static string Test(out int threadId)
{Console.WriteLine("Starting ...");
Console.WriteLine("Is thread pool thread:{0}", Thread.CurrentThread.IsThreadPoolThread);
Thread.Sleep(TimeSpan.FromSeconds(2));
threadId = Thread.CurrentThread.ManagedThreadId;
return string.Format("Thread pool worker thread id was:{0}", threadId);
}
}
}