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 * CruiseControl, a Continuous Integration Toolkit
 * Copyright (c) 2001, ThoughtWorks, Inc.
 * 200 E. Randolph, 25th Floor
 * Chicago, IL 60601 USA
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 *       names of its contributors may be used to endorse or promote
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package net.sourceforge.cruisecontrol.util;

public class TdTimer {
  public TdTimer() {
    start();
  }

  public void start() {
    mStart = System.currentTimeMillis();
    mStop = 0;
    mLap = mStart;
  }

  public void stop() {
    mStop = System.currentTimeMillis();
  }

  public long time() {
    // update mStop
    stop();
    // return the diff
    return mStop - mStart;
  }

  /**
   * Note that split returns the amount of time since
   * the last time you called split.  It does NOT return
   * the time since you started.
   *
   * @return long time in milliseconds
   */
  public long split() {
    long curTime = System.currentTimeMillis();
    long splitTime = curTime - mLap;
    mLap = curTime;

    return splitTime;
  }

  private long mStart;
  private long mStop;
  private long mLap;
}