1/*
2 * Copyright (c) 2011, 2012, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25package sun.jvm.hotspot.ci;
26
27import java.lang.reflect.Constructor;
28import java.util.*;
29import sun.jvm.hotspot.debugger.*;
30import sun.jvm.hotspot.runtime.*;
31import sun.jvm.hotspot.utilities.*;
32import sun.jvm.hotspot.oops.*;
33import sun.jvm.hotspot.types.*;
34
35public 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    ciMetadataField = type.getAddressField("_ci_metadata");
48    symbolsField = type.getAddressField("_symbols");
49
50    ciObjectConstructor = new VirtualBaseConstructor<ciObject>(db, db.lookupType("ciObject"), "sun.jvm.hotspot.ci", ciObject.class);
51    ciMetadataConstructor = new VirtualBaseConstructor<ciMetadata>(db, db.lookupType("ciMetadata"), "sun.jvm.hotspot.ci", ciMetadata.class);
52    ciSymbolConstructor = new VirtualBaseConstructor<ciSymbol>(db, db.lookupType("ciSymbol"), "sun.jvm.hotspot.ci", ciSymbol.class);
53  }
54
55  private static AddressField unloadedMethodsField;
56  private static AddressField ciMetadataField;
57  private static AddressField symbolsField;
58
59  private static VirtualBaseConstructor<ciObject> ciObjectConstructor;
60  private static VirtualBaseConstructor<ciMetadata> ciMetadataConstructor;
61  private static VirtualBaseConstructor<ciSymbol> ciSymbolConstructor;
62
63  public static ciObject get(Address addr) {
64    if (addr == null) return null;
65
66    return (ciObject)ciObjectConstructor.instantiateWrapperFor(addr);
67  }
68
69  public static ciMetadata getMetadata(Address addr) {
70    if (addr == null) return null;
71
72    return (ciMetadata)ciMetadataConstructor.instantiateWrapperFor(addr);
73  }
74
75  public GrowableArray<ciMetadata> objects() {
76    return GrowableArray.create(ciMetadataField.getValue(getAddress()), ciMetadataConstructor);
77  }
78
79  public GrowableArray<ciSymbol> symbols() {
80    return GrowableArray.create(symbolsField.getValue(getAddress()), ciSymbolConstructor);
81  }
82
83  public ciObjectFactory(Address addr) {
84    super(addr);
85  }
86}
87