jake2-commits

[Holger Z. <hz...@us...>]

Update of /cvsroot/jake2/jake2/src/jake2/sys
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26140/src/jake2/sys

Added Files:
	NanoTimer.java StandardTimer.java HighPrecisionTimer.java 
	Timer.java 
Log Message:
different Timers implementing Milliseconds()

--- NEW FILE: HighPrecisionTimer.java ---
/*
 * HighPrecisionTimer.java
 * Copyright (C) 2005
 * 
 * $Id: HighPrecisionTimer.java,v 1.1 2005/07/01 14:11:00 hzi Exp $
 */
package jake2.sys;

import sun.misc.Perf;




class HighPrecisionTimer extends Timer {

	private Perf perf = Perf.getPerf();
	private double f = 1000.0 / perf.highResFrequency();
	private long base;
	
	HighPrecisionTimer() {
		base = perf.highResCounter();
	}
	
	public long currentTimeMillis() {
		long time = perf.highResCounter();
		long delta = time - base;
		if (delta < 0) {
			delta += Long.MAX_VALUE + 1;
		}
		return (long)(delta * f);
	}
}

--- NEW FILE: Timer.java ---
/*
 * Timer.java
 * Copyright (C) 2005
 * 
 * $Id: Timer.java,v 1.1 2005/07/01 14:11:01 hzi Exp $
 */
package jake2.sys;

import jake2.Globals;


public abstract class Timer {

	abstract public long currentTimeMillis();
	private static long time = 0;
	
	static Timer t;
	
	static {
		try {
			t = new NanoTimer();
		} catch (Throwable e) {
			try {
				t = new HighPrecisionTimer();
			} catch (Throwable e1) {
				t = new StandardTimer();
			}
		}
		System.out.println("using " + t.getClass().getName());
	}
	
	public static int Milliseconds() {
		return Globals.curtime = (int)(t.currentTimeMillis());
	}
}

--- NEW FILE: StandardTimer.java ---
/*
 * StandardTimer.java
 * Copyright (C) 2005
 * 
 * $Id: StandardTimer.java,v 1.1 2005/07/01 14:11:00 hzi Exp $
 */
package jake2.sys;


class StandardTimer extends Timer {

	private long base;
	
	StandardTimer() {
		base = System.currentTimeMillis();
	}
	
	public long currentTimeMillis() {
		long time = System.currentTimeMillis();
		long delta = time - base;
		if (delta < 0) {
			delta += Long.MAX_VALUE + 1;
		}
		return delta;
	}

}

--- NEW FILE: NanoTimer.java ---
/*
 * NanoTimer.java
 * Copyright (C) 2005
 * 
 * $Id: NanoTimer.java,v 1.1 2005/07/01 14:11:00 hzi Exp $
 */
package jake2.sys;


public class NanoTimer extends Timer {

	private long base;

	NanoTimer() {
		base = System.nanoTime();
	}
	
	public long currentTimeMillis() {
		long time = System.nanoTime();
		long delta = time - base;
		if (delta < 0) {
			delta += Long.MAX_VALUE + 1;
		}
		return (long)(delta * 0.000001);
	}

}