AcStopWatch.cs

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using System;
using System.Diagnostics;

namespace AcUtils
{
    [Serializable]
    public sealed class AcStopWatch
    {
        #region class variables
        public delegate void ElapsedTimeHandler(string elapsedTime);  
        private ElapsedTimeHandler _elapsedTimeHandler;
        [NonSerialized] private Stopwatch _stopwatch;
        #endregion


        public AcStopWatch(ElapsedTimeHandler elapsedTimeHandler)
        {
            _elapsedTimeHandler = elapsedTimeHandler;
        }

        public void Start()
        {
            _stopwatch = Stopwatch.StartNew();
        }

        public void Stop()
        {
            if (_elapsedTimeHandler != null)
            {
                AcDuration ts = _stopwatch.Elapsed;
                _elapsedTimeHandler(ts.ToString());
            }
        }
    }



    public struct AcStopWatchMarker : IDisposable
    {
        private AcStopWatch _stopwatch;

        public AcStopWatchMarker(AcStopWatch stopwatch)
        {
            _stopwatch = stopwatch;
            _stopwatch.Start();
        }

        public void Dispose()
        {
            _stopwatch.Stop();
        }
    }
}