using System;
using System.Collections.Generic;
using System.Text;

using System.Threading;

namespace ThreadLock
{
 class Program
 {
  #region variable
  Thread thread1 = null;
  Thread thread2 = null;
  Thread thread3 = null;
  Mutex mutex = null;
  #endregion
  static void Main(string[] args)
  {
   Program p = new Program();
   p.RunThread();
   Console.ReadLine();
  }
  public Program()
  {
   mutex = new Mutex();
   thread1 = new Thread(new ThreadStart(thread1Func));
   thread2 = new Thread(new ThreadStart(thread2Func));
   thread3 = new Thread(new ThreadStart(thread3Func));
  }
  public void RunThread()
  {
   thread1.Start();
   thread2.Start();
   thread3.Start();
  }
  private void thread1Func()
  {
   for (int count = 0; count < 10; count++)
   {
    lock (this)
    {
     mutex.WaitOne();
     TestFunc("Thread1 have run " + count.ToString() + " times");
     Thread.Sleep(30);
     mutex.ReleaseMutex();
    }
   }
  }
  private void thread2Func()
  {
   for (int count = 0; count < 10; count++)
   {
    lock (this)
    {
     mutex.WaitOne();
     TestFunc("Thread2 have run " + count.ToString() + " times");
     Thread.Sleep(100);
     mutex.ReleaseMutex();
    }
   }
  }
  private void thread3Func()
  {
   for (int count = 0; count < 10; count++)
   {
    lock (this)
    {
     mutex.WaitOne();
     TestFunc("Thread3 have run " + count.ToString() + " times");
     Thread.Sleep(100);
     mutex.ReleaseMutex();
    }
   }
  }
  private void TestFunc(string str)
  {
   Console.WriteLine("{0} {1}", str, System.DateTime.Now.Millisecond.ToString());
   Thread.Sleep(50);
  }

}
}