| /* |
| * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
| * 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 |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.memory; |
| |
| import java.util.*; |
| |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.types.*; |
| |
| /** Factory containing a VirtualConstructor suitable for instantiating |
| wrapper objects for all types of generations */ |
| |
| public class GenerationFactory { |
| private static VirtualConstructor ctor; |
| |
| static { |
| VM.registerVMInitializedObserver(new Observer() { |
| public void update(Observable o, Object data) { |
| initialize(VM.getVM().getTypeDataBase()); |
| } |
| }); |
| } |
| |
| private static synchronized void initialize(TypeDataBase db) { |
| ctor = new VirtualConstructor(db); |
| |
| ctor.addMapping("DefNewGeneration", DefNewGeneration.class); |
| ctor.addMapping("ParNewGeneration", ParNewGeneration.class); |
| ctor.addMapping("TenuredGeneration", TenuredGeneration.class); |
| ctor.addMapping("ConcurrentMarkSweepGeneration", ConcurrentMarkSweepGeneration.class); |
| } |
| |
| public static Generation newObject(Address addr) { |
| try { |
| return (Generation) ctor.instantiateWrapperFor(addr); |
| } catch (WrongTypeException e) { |
| return new Generation(addr) { |
| public String name() { |
| return "unknown generation type"; |
| } |
| public void spaceIterate(SpaceClosure blk, boolean usedOnly) { |
| } |
| public void printOn(java.io.PrintStream tty) { |
| tty.println("unknown subtype of Generation @ " + getAddress() + " (" + |
| virtualSpace().low() + "," + virtualSpace().high() + ")"); |
| } |
| public long used() { |
| return 0; |
| } |
| public long free() { |
| return 0; |
| } |
| public long capacity() { |
| return 0; |
| } |
| public long contiguousAvailable() { |
| return 0; |
| } |
| |
| }; |
| } |
| } |
| } |