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.lang.reflect.Constructor;
  28 import java.util.*;
  29 import sun.jvm.hotspot.debugger.*;
  30 import sun.jvm.hotspot.runtime.*;
  31 import sun.jvm.hotspot.utilities.*;
  32 import sun.jvm.hotspot.oops.*;
  33 import sun.jvm.hotspot.types.*;
  34 
  35 public class ciObjectFactory extends VMObject {
  36   static {
  37     VM.registerVMInitializedObserver(new Observer() {
  38         public void update(Observable o, Object data) {
  39           initialize(VM.getVM().getTypeDataBase());
  40         }
  41       });
  42   }
  43 
  44   private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
  45     Type type      = db.lookupType("ciObjectFactory");
  46     unloadedMethodsField = type.getAddressField("_unloaded_methods");
  47     ciObjectsField = type.getAddressField("_ci_objects");
  48     symbolsField = type.getAddressField("_symbols");
  49 
  50     ciObjectConstructor = new VirtualBaseConstructor<ciObject>(db, db.lookupType("ciObject"), "sun.jvm.hotspot.ci", ciObject.class);
  51     ciSymbolConstructor = new VirtualBaseConstructor<ciSymbol>(db, db.lookupType("ciSymbol"), "sun.jvm.hotspot.ci", ciSymbol.class);
  52   }
  53 
  54   private static AddressField unloadedMethodsField;
  55   private static AddressField ciObjectsField;
  56   private static AddressField symbolsField;
  57 
  58   private static VirtualBaseConstructor<ciObject> ciObjectConstructor;
  59   private static VirtualBaseConstructor<ciSymbol> ciSymbolConstructor;
  60 
  61   public static ciObject get(Address addr) {
  62     if (addr == null) return null;
  63 
  64     return (ciObject)ciObjectConstructor.instantiateWrapperFor(addr);
  65   }
  66 
  67   public GrowableArray<ciObject> objects() {
  68     return GrowableArray.create(ciObjectsField.getValue(getAddress()), ciObjectConstructor);
  69   }
  70 
  71   public GrowableArray<ciSymbol> symbols() {
  72     return GrowableArray.create(symbolsField.getValue(getAddress()), ciSymbolConstructor);
  73   }
  74 
  75   public ciObjectFactory(Address addr) {
  76     super(addr);
  77   }
  78 }