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comparison agent/src/share/classes/sun/jvm/hotspot/oops/CompiledICHolder.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2000-2001 Sun Microsystems, Inc. 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.oops;
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.types.*;
32
33 public class CompiledICHolder extends Oop {
34 static {
35 VM.registerVMInitializedObserver(new Observer() {
36 public void update(Observable o, Object data) {
37 initialize(VM.getVM().getTypeDataBase());
38 }
39 });
40 }
41
42 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
43 Type type = db.lookupType("compiledICHolderOopDesc");
44 holderMethod = new OopField(type.getOopField("_holder_method"), 0);
45 holderKlass = new OopField(type.getOopField("_holder_klass"), 0);
46 headerSize = type.getSize();
47 }
48
49 CompiledICHolder(OopHandle handle, ObjectHeap heap) {
50 super(handle, heap);
51 }
52
53 public boolean isCompiledICHolder() { return true; }
54
55 private static long headerSize;
56
57 // Fields
58 private static OopField holderMethod;
59 private static OopField holderKlass;
60
61 // Accessors for declared fields
62 public Method getHolderMethod() { return (Method) holderMethod.getValue(this); }
63 public Klass getHolderKlass() { return (Klass) holderKlass.getValue(this); }
64
65 public void printValueOn(PrintStream tty) {
66 tty.print("CompiledICHolder");
67 }
68
69 public long getObjectSize() {
70 return alignObjectSize(headerSize);
71 }
72
73 void iterateFields(OopVisitor visitor, boolean doVMFields) {
74 super.iterateFields(visitor, doVMFields);
75 if (doVMFields) {
76 visitor.doOop(holderMethod, true);
77 visitor.doOop(holderKlass, true);
78 }
79 }
80 }