| /* |
| * Copyright (c) 2002, 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.runtime; |
| |
| import java.util.*; |
| |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.types.*; |
| |
| public class JNIid extends VMObject { |
| private static MetadataField holder; |
| private static AddressField next; |
| private static CIntegerField offset; |
| private static MetadataField resolvedMethod; |
| private static MetadataField resolvedReceiver; |
| |
| private ObjectHeap heap; |
| |
| static { |
| VM.registerVMInitializedObserver(new Observer() { |
| public void update(Observable o, Object data) { |
| initialize(VM.getVM().getTypeDataBase()); |
| } |
| }); |
| } |
| |
| private static synchronized void initialize(TypeDataBase db) { |
| |
| // FIXME: JNIid has been removed as part of redesign of JNI method, |
| // field ID generation. Please refer to src/share/vm/prims/jniId.hpp/.cpp |
| // For now, commenting out the below code. |
| |
| /*********************************************************** |
| Type type = db.lookupType("JNIid"); |
| |
| holder = type.getOopField("_holder"); |
| next = type.getAddressField("_next"); |
| offset = type.getCIntegerField("_offset"); |
| resolvedMethod = type.getOopField("_resolved_method"); |
| resolvedReceiver = type.getOopField("_resolved_receiver"); |
| ***********************************************************/ |
| } |
| |
| public JNIid(Address addr, ObjectHeap heap) { |
| super(addr); |
| this.heap = heap; |
| } |
| |
| public JNIid next() { |
| Address nextAddr = next.getValue(addr); |
| if (nextAddr == null) { |
| return null; |
| } |
| return new JNIid(nextAddr, heap); |
| } |
| |
| public Klass holder() { return (Klass) holder.getValue(addr); } |
| public int offset() { return (int) offset.getValue(addr); } |
| public Method method() { |
| return ((InstanceKlass) holder()).getMethods().at(offset()); |
| } |
| public Method resolvedMethod() { return (Method)resolvedMethod.getValue(addr); } |
| public Klass resolvedReceiver() { return (Klass) resolvedReceiver.getValue(addr); } |
| } |