public class MultipleThreadCooperationSample

    {

        public static ManualResetEvent eventAB = new ManualResetEvent(false);

 

        public static ManualResetEvent eventBC = new ManualResetEvent(false);

 

        public static int Main(string[] args)

        {

            //so called thread A

            ThreadPool.QueueUserWorkItem(new WaitCallback(d =>

            {

                Console.WriteLine("Start A thread");

                Thread.Sleep(4000);

                eventAB.Set();

            }));

 

            //thread A

            ThreadPool.QueueUserWorkItem(new WaitCallback(d =>

            {

                Console.WriteLine("Start B thread and wait A thread to finised.");

                eventAB.WaitOne();

               

                Console.WriteLine("Process something within B thread");

 

                Thread.Sleep(4000);

                eventBC.Set();

            }));

 

 

            eventBC.WaitOne(Timeout.Infinite, true);

            //thread C

            ThreadPool.QueueUserWorkItem(new WaitCallback(d =>

            {

                Console.WriteLine("From C thread, everything is done.");

            }));

 

            Console.ReadLine();

 

            return 0;

        }

}