1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.ci;
  26 
  27 import java.io.*;
  28 import java.util.*;
  29 import sun.jvm.hotspot.debugger.*;
  30 import sun.jvm.hotspot.runtime.*;
  31 import sun.jvm.hotspot.oops.*;
  32 import sun.jvm.hotspot.types.*;
  33 
  34 public class ciObject extends VMObject {
  35   static {
  36     VM.registerVMInitializedObserver(new Observer() {
  37         public void update(Observable o, Object data) {
  38           initialize(VM.getVM().getTypeDataBase());
  39         }
  40       });
  41   }
  42 
  43   private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
  44     Type type      = db.lookupType("ciObject");
  45     identField = new CIntField(type.getCIntegerField("_ident"), 0);
  46     klassField = type.getAddressField("_klass");
  47     handleField = type.getAddressField("_handle");
  48   }
  49 
  50   private static CIntField identField;
  51   private static AddressField klassField;
  52   private static AddressField handleField;
  53 
  54   public Oop getOop() {
  55     OopHandle oh =  handleField.getValue(getAddress()).getOopHandleAt(0);
  56     return VM.getVM().getObjectHeap().newOop(oh);
  57   }
  58 
  59   public ciObject(Address addr) {
  60     super(addr);
  61   }
  62 
  63   public void printOn(PrintStream out) {
  64     getOop().printValueOn(out);
  65     out.println();
  66   }
  67 
  68   public String toString() {
  69     return getOop().toString();
  70   }
  71 }