using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace LISTING_1_47_Deadlocked_tasks

{

    public class Program

    {

        static object lock1 = new object();

        static object lock2 = new object();

​

        static void Method1()

        {

            lock (lock1)

            {

                Console.WriteLine("Method 1 got lock 1");

                Console.WriteLine("Method 1 waiting for lock 2");

                lock (lock2)

                {

                    Console.WriteLine("Method 1 got lock 2");

                }

                Console.WriteLine("Method 1 released lock 2");

            }

            Console.WriteLine("Method 1 released lock 1");

        }

​

        static void Method2()

        {

            lock (lock2)

            {

                Console.WriteLine("Method 2 got lock 2");

                Console.WriteLine("Method 2 waiting for lock 1");

                lock (lock1)

                {

                    Console.WriteLine("Method 2 got lock 1");

                }

                Console.WriteLine("Method 2 released lock 1");

            }

            Console.WriteLine("Method 2 released lock 2");

        }

​

        public static void Main(string[] args)

        {

            Task t1 = Task.Run(() => Method1());

            Task t2 = Task.Run(() => Method2());

            Console.WriteLine("waiting for Task 2");

            t2.Wait();

            Console.WriteLine("Tasks complete. Press any key to exit.");

        }

    }

}