| /* |
| * 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.utility.deque; |
| |
| import org.mmtk.policy.RawPageSpace; |
| import org.mmtk.vm.VM; |
| |
| import org.vmmagic.unboxed.*; |
| import org.vmmagic.pragma.*; |
| |
| /** |
| * This class specializes SortSharedQueue to sort objects according to |
| * their time of death (TOD). |
| */ |
| @Uninterruptible |
| public final class SortTODSharedDeque extends SortSharedDeque { |
| |
| /** |
| * Constructor |
| * |
| * @param rps The space from which the instance should obtain buffers. |
| * @param arity The arity of the data to be enqueued |
| */ |
| public SortTODSharedDeque(String name, RawPageSpace rps, int arity) { |
| super(name, rps, arity); |
| } |
| |
| /** |
| * Return the sorting key for the object passed as a parameter. |
| * |
| * @param obj The address of the object whose key is wanted |
| * @return The value of the sorting key for this object |
| */ |
| protected Word getKey(Address obj) { |
| return VM.traceInterface.getDeathTime(obj.toObjectReference()); |
| } |
| } |