using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

class Program {
    static void Main(string[] args) {
        int i = 5;

        Console.WriteLine("before: {0}", i);

        var thread = new myThread<int>(
            (state) => {
                state.value += 1;
            }
        );

        thread.Start(
            (obj) => { i = obj; },
            () => i
        );

        while (thread.IsAlive)
            ;

        Console.WriteLine("after: {0}", i);
    }

    class myThread<T>
    {
        public delegate void ThreadStart(StateObject state);

        private Thread _thread;

        public myThread(ThreadStart start)
        {
            _thread = new Thread((obj) => { start.Invoke((StateObject)obj); });
        }

        public void Start(StateObject obj)
        {
            _thread.Start(obj);
        }

        public void Start(Action<T> f_set, Func<T> f_get) {
            _thread.Start(new StateObject(f_set, f_get));
        }

        public bool IsAlive { get { return _thread.IsAlive; } }

        public class StateObject {
            private Action<T> _f_set;
            private Func<T> _f_get;
            public StateObject(Action<T> f_set, Func<T> f_get) 
            {
                _f_set = f_set;
                _f_get = f_get;
            }

            public T value {
                set { _f_set(value); }
                get { return _f_get(); }
            }
        }
    }
}