Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/oops/ObjArray.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | ba764ed4b6f2 |
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/* * Copyright 2000-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.oops; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; // An ObjArray is an array containing oops public class ObjArray extends Array { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { Type type = db.lookupType("objArrayOopDesc"); elementSize = db.getOopSize(); } ObjArray(OopHandle handle, ObjectHeap heap) { super(handle, heap); } public boolean isObjArray() { return true; } private static long elementSize; public Oop getObjAt(long index) { long offset = baseOffsetInBytes(BasicType.T_OBJECT) + (index * elementSize); return getHeap().newOop(getHandle().getOopHandleAt(offset)); } public void printValueOn(PrintStream tty) { tty.print("ObjArray"); } public void iterateFields(OopVisitor visitor, boolean doVMFields) { super.iterateFields(visitor, doVMFields); int length = (int) getLength(); long baseOffset = baseOffsetInBytes(BasicType.T_OBJECT); for (int index = 0; index < length; index++) { long offset = baseOffset + (index * elementSize); visitor.doOop(new OopField(new IndexableFieldIdentifier(index), offset, false), false); } } }