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

namespace Threding_Demo2
{
    class Program
    {
        static void Main(string[] args)
        {
            long frequency = Stopwatch.Frequency;
            Console.WriteLine("Timer frequency in ticks per second = {0}",frequency);
            long nanosecPerTick = (1000L * 1000L * 1000L) / frequency;
            Console.WriteLine("Timer is accurate within {0} nanoseconds",nanosecPerTick);
        }
    }
    class demo
    {
        public Stopwatch Stopwatcher { get; set; }
        public demo()
        {
            this.Stopwatcher =  new Stopwatch();
        }
        public void PreSpin(Stopwatch a, double duration)
        {
            var current = a.ElapsedTicks;
            while ((a.ElapsedTicks-current)<duration )
            {
                Thread.SpinWait(10);
            }
        }
        public void Spin(Stopwatch a, double duration)
        {
            this.PreSpin(a,duration);
        }
    }
}