1/*
2 * Copyright (c) 2001, 2009, 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.runtime;
26
27import sun.jvm.hotspot.debugger.*;
28import sun.jvm.hotspot.utilities.*;
29
30public class MonitorInfo {
31  private OopHandle owner;
32  private BasicLock lock;
33  private OopHandle ownerKlass;
34  private boolean eliminated;
35  private boolean ownerIsScalarReplaced;
36
37  public MonitorInfo(OopHandle owner, BasicLock lock, boolean eliminated, boolean ownerIsScalarReplaced) {
38    if (!ownerIsScalarReplaced) {
39      this.owner = owner;
40      this.ownerKlass = null;
41    } else {
42      Assert.that(eliminated, "monitor should be eliminated for scalar replaced object");
43      this.owner = null;
44      this.ownerKlass = owner;
45    }
46    this.eliminated = eliminated;
47    this.ownerIsScalarReplaced = ownerIsScalarReplaced;
48  }
49
50  public OopHandle owner() {
51   Assert.that(!ownerIsScalarReplaced, "should not be called for scalar replaced object");
52   return owner;
53  }
54
55  public OopHandle ownerKlass() {
56   Assert.that(ownerIsScalarReplaced, "should not be called for not scalar replaced object");
57   return ownerKlass;
58  }
59
60  public BasicLock lock()  { return lock; }
61  public boolean eliminated() { return eliminated; }
62  public boolean ownerIsScalarReplaced() { return ownerIsScalarReplaced; }
63}
64