/*
* 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.mmtk.plan.refcount.backuptrace;
import org.mmtk.plan.refcount.RCHeader;
import org.mmtk.policy.ExplicitLargeObjectSpace;
import org.mmtk.vm.VM;
import org.vmmagic.pragma.*;
import org.vmmagic.unboxed.*;
/**
* This class implements the scanning of dead large objects during a backup trace.
*/
@Uninterruptible
public final class BTScanLargeObjectSweeper extends ExplicitLargeObjectSpace.Sweeper {
private final BTDecMarked sdm = new BTDecMarked();
public boolean sweepLargeObject(ObjectReference object) {
if (!RCHeader.isMarked(object)) {
VM.scanning.scanObject(sdm, object);
}
// Do not free any objects at this time
return false;
}
}