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comparison agent/src/share/classes/sun/jvm/hotspot/oops/BreakpointInfo.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 2002 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.util.*;
28
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.runtime.*;
31 import sun.jvm.hotspot.types.*;
32
33 public class BreakpointInfo extends VMObject {
34 private static CIntegerField origBytecodeField;
35 private static CIntegerField bciField;
36 private static CIntegerField nameIndexField;
37 private static CIntegerField signatureIndexField;
38 private static AddressField nextField;
39
40 static {
41 VM.registerVMInitializedObserver(new Observer() {
42 public void update(Observable o, Object data) {
43 initialize(VM.getVM().getTypeDataBase());
44 }
45 });
46 }
47
48 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
49 Type type = db.lookupType("BreakpointInfo");
50
51 origBytecodeField = type.getCIntegerField("_orig_bytecode");
52 bciField = type.getCIntegerField("_bci");
53 nameIndexField = type.getCIntegerField("_name_index");
54 signatureIndexField = type.getCIntegerField("_signature_index");
55 nextField = type.getAddressField ("_next");
56 }
57
58 public BreakpointInfo(Address addr) {
59 super(addr);
60 }
61
62 public int getOrigBytecode() { return (int) origBytecodeField.getValue(addr); }
63 public int getBCI() { return (int) bciField.getValue(addr); }
64 public long getNameIndex() { return nameIndexField.getValue(addr); }
65 public long getSignatureIndex() { return signatureIndexField.getValue(addr); }
66 public BreakpointInfo getNext() {
67 return (BreakpointInfo) VMObjectFactory.newObject(BreakpointInfo.class, nextField.getValue(addr));
68 }
69
70 public boolean match(Method m, int bci) {
71 return (bci == getBCI() && match(m));
72 }
73
74 public boolean match(Method m) {
75 return (getNameIndex() == m.getNameIndex() &&
76 getSignatureIndex() == m.getSignatureIndex());
77 }
78 }