Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/BasicObjectLock.java @ 2042:0a8e0d4345b3 hs20-b05 jdk7-b124
7010068: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - first pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: jcoomes
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date | Mon, 03 Jan 2011 15:30:05 -0800 |
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0 | 1 /* |
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2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.runtime; | |
26 | |
27 import java.util.*; | |
28 | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.types.*; | |
31 | |
32 public class BasicObjectLock extends VMObject { | |
33 static { | |
34 VM.registerVMInitializedObserver(new Observer() { | |
35 public void update(Observable o, Object data) { | |
36 initialize(VM.getVM().getTypeDataBase()); | |
37 } | |
38 }); | |
39 } | |
40 | |
41 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
42 Type type = db.lookupType("BasicObjectLock"); | |
43 lockField = type.getField("_lock"); | |
44 objField = type.getOopField("_obj"); | |
45 size = (int) type.getSize(); | |
46 } | |
47 | |
48 private static sun.jvm.hotspot.types.Field lockField; | |
49 private static sun.jvm.hotspot.types.OopField objField; | |
50 private static int size; | |
51 | |
52 public BasicObjectLock(Address addr) { | |
53 super(addr); | |
54 } | |
55 | |
56 public OopHandle obj() { return objField.getValue(addr); } | |
57 public BasicLock lock() { return new BasicLock(addr.addOffsetTo(lockField.getOffset())); } | |
58 | |
59 /** Note: Use frame::interpreter_frame_monitor_size() for the size | |
60 of BasicObjectLocks in interpreter activation frames since it | |
61 includes machine-specific padding. This routine returns a size | |
62 in BYTES in this system! */ | |
63 public static int size() { return size; } | |
64 | |
65 /** Helper routine for Frames (also probably needed for iteration) */ | |
66 public Address address() { return addr; } | |
67 } |