001    /*
002     *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003     *
004     *  This file is licensed to You under the Eclipse Public License (EPL);
005     *  You may not use this file except in compliance with the License. You
006     *  may obtain a copy of the License at
007     *
008     *      http://www.opensource.org/licenses/eclipse-1.0.php
009     *
010     *  See the COPYRIGHT.txt file distributed with this work for information
011     *  regarding copyright ownership.
012     */
013    package org.jikesrvm.mm.mminterface;
014    
015    import org.mmtk.plan.CollectorContext;
016    import org.vmmagic.pragma.Uninterruptible;
017    
018    /**
019     * RVMThread must extend this class to associate appropriate context with processor.
020     */
021    @Uninterruptible
022    public abstract class ThreadContext extends Selected.Mutator {
023      protected CollectorContext collectorContext;
024    
025      public final CollectorContext getCollectorContext() {
026        return collectorContext;
027      }
028    
029      public final boolean isCollectorThread() {
030        return collectorContext != null;
031      }
032    }
033