0
|
1 /*
|
|
2 * Copyright 2000-2004 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 // An ObjArray is an array containing oops
|
|
34
|
|
35 public class ObjArray extends Array {
|
|
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("objArrayOopDesc");
|
|
46 elementSize = db.getOopSize();
|
|
47 }
|
|
48
|
|
49 ObjArray(OopHandle handle, ObjectHeap heap) {
|
|
50 super(handle, heap);
|
|
51 }
|
|
52
|
|
53 public boolean isObjArray() { return true; }
|
|
54
|
|
55 private static long elementSize;
|
|
56
|
|
57 public Oop getObjAt(long index) {
|
|
58 long offset = baseOffsetInBytes(BasicType.T_OBJECT) + (index * elementSize);
|
|
59 return getHeap().newOop(getHandle().getOopHandleAt(offset));
|
|
60 }
|
|
61
|
|
62 public void printValueOn(PrintStream tty) {
|
|
63 tty.print("ObjArray");
|
|
64 }
|
|
65
|
|
66 public void iterateFields(OopVisitor visitor, boolean doVMFields) {
|
|
67 super.iterateFields(visitor, doVMFields);
|
|
68 int length = (int) getLength();
|
|
69 long baseOffset = baseOffsetInBytes(BasicType.T_OBJECT);
|
|
70 for (int index = 0; index < length; index++) {
|
|
71 long offset = baseOffset + (index * elementSize);
|
|
72 visitor.doOop(new OopField(new IndexableFieldIdentifier(index), offset, false), false);
|
|
73 }
|
|
74 }
|
|
75 }
|