co.paralleluniverse.concurrent.util.EnhancedAtomicReference Maven / Gradle / Ivy
/*
* Quasar: lightweight threads and actors for the JVM.
* Copyright (c) 2013-2015, Parallel Universe Software Co. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 3.0
* as published by the Free Software Foundation.
*/
package co.paralleluniverse.concurrent.util;
import com.google.common.base.Function;
import java.util.concurrent.atomic.AtomicReference;
/**
* Extension of {@link AtomicReference} with useful methods based on CAS.
*
* @author circlespainter
*/
public class EnhancedAtomicReference extends AtomicReference {
public void swap(final Function f) {
V newVal, currVal;
do {
currVal = get();
newVal = f.apply(currVal);
} while (!compareAndSet(currVal, newVal));
}
}