source: branches/HeuristicLab.Problems.GaussianProcessTuning/ILNumerics.2.14.4735.573/Misc/ILPerformer.cs @ 9407

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///    This file is part of ILNumerics Community Edition.
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///    ILNumerics Community Edition - high performance computing for applications.
///    Copyright (C) 2006 - 2012 Haymo Kutschbach, http://ilnumerics.net
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using System;
using System.Text;

namespace ILNumerics.Misc
{
  /// <summary>
  /// Measures time spans.
  /// </summary>
  internal class ILPerformer
  {
    private long m_start; 
    private long m_lastDuration; 
    public ILPerformer() {
      Tic();
    }
    public void Tic() {
      m_start = Environment.TickCount;
    }
    public String Toc() {
      long msec = Environment.TickCount;
      if (msec < m_start) 
        msec += Int32.MaxValue;  // recover overflow
      m_lastDuration = (msec - m_start); 
      return ToString();
    }
    public long Duration {
      get {
        return m_lastDuration;
      }
    }
    public override string ToString() {
      return m_lastDuration.ToString();
    }
  }
}