/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

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 */

package sun.jvm.hotspot.gc.parallel;

import java.io.*;

import java.util.*;

import sun.jvm.hotspot.debugger.*;

import sun.jvm.hotspot.gc.shared.*;

import sun.jvm.hotspot.runtime.*;

import sun.jvm.hotspot.types.*;

public class ParallelScavengeHeap extends CollectedHeap {

   static {

      VM.registerVMInitializedObserver(new Observer() {

         public void update(Observable o, Object data) {

            initialize(VM.getVM().getTypeDataBase());

         }

      });

   }

   private static synchronized void initialize(TypeDataBase db) {

      Type type = db.lookupType("ParallelScavengeHeap");

      youngGenField = type.getAddressField("_young_gen");

      oldGenField    = type.getAddressField("_old_gen");

   }

   public ParallelScavengeHeap(Address addr) {

      super(addr);

   }

   // Fields

   private static AddressField youngGenField;

   private static AddressField oldGenField;

   // Accessors

   public PSYoungGen youngGen() {

      return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue());

   }

   public PSOldGen oldGen() {

      return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue());

   }

   public long capacity() {

      return youngGen().capacity() + oldGen().capacity();

   }

   public long used() {

      return youngGen().used() + oldGen().used();

   }

   public boolean isIn(Address a) {

      if (youngGen().isIn(a)) {

         return true;

      }

      if (oldGen().isIn(a)) {

         return true;

      }

      return false;

   }

   public CollectedHeapName kind() {

   }

   public void printOn(PrintStream tty) {

      tty.print("ParallelScavengeHeap [ ");

      youngGen().printOn(tty);

      oldGen().printOn(tty);

      tty.print(" ] ");

   }

}