/*
* 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.jikesrvm.adaptive.measurements.listeners;
import org.vmmagic.pragma.Uninterruptible;
import org.vmmagic.unboxed.Address;
/**
* This object that is invoked when online measurement information must
* be collected.
*/
@Uninterruptible
public abstract class ContextListener extends Listener {
/**
* Entry point when listener is awoken.
*
* @param sfp pointer to stack frame where call stack should start
* to be examined.
* @param whereFrom Was this a yieldpoint in a PROLOGUE, BACKEDGE, or
* EPILOGUE?
*/
public abstract void update(Address sfp, int whereFrom);
}