/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.vmmagic.unboxed.harness;
import java.util.concurrent.atomic.AtomicLong;
/************************************************************************************
*
* A 'clock' that counts memory accesses
*
*/
public class Clock {
/** Set to 'true' to enable the clock - it's expensive */
public static final boolean ENABLE_CLOCK = false;
/** The clock */
private static final AtomicLong clock = new AtomicLong(0);
static void tick() {
if (ENABLE_CLOCK) clock.incrementAndGet();
}
/**
* @return The current value of the clock
*/
public static long read() {
return clock.get();
}
}