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comparison agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1MonitoringSupport.java @ 3984:81aa07130d30

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7097048: G1: extend the G1 SA changes to print per-heap space information Reviewed-by: brutisso, johnc
author tonyp
date Mon, 03 Oct 2011 19:04:14 -0400
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children 0b3d1ec6eaee
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3983:811ec3d0833b 3984:81aa07130d30
1 /*
2 * Copyright (c) 2011, 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
25 package sun.jvm.hotspot.gc_implementation.g1;
26
27 import java.util.Observable;
28 import java.util.Observer;
29
30 import sun.jvm.hotspot.debugger.Address;
31 import sun.jvm.hotspot.runtime.VM;
32 import sun.jvm.hotspot.runtime.VMObject;
33 import sun.jvm.hotspot.types.CIntegerField;
34 import sun.jvm.hotspot.types.Type;
35 import sun.jvm.hotspot.types.TypeDataBase;
36
37 // Mirror class for G1MonitoringSupport.
38
39 public class G1MonitoringSupport extends VMObject {
40 // size_t _eden_committed;
41 static private CIntegerField edenCommittedField;
42 // size_t _eden_used;
43 static private CIntegerField edenUsedField;
44 // size_t _survivor_committed;
45 static private CIntegerField survivorCommittedField;
46 // size_t _survivor_used;
47 static private CIntegerField survivorUsedField;
48 // size_t _old_committed;
49 static private CIntegerField oldCommittedField;
50 // size_t _old_used;
51 static private CIntegerField oldUsedField;
52
53 static {
54 VM.registerVMInitializedObserver(new Observer() {
55 public void update(Observable o, Object data) {
56 initialize(VM.getVM().getTypeDataBase());
57 }
58 });
59 }
60
61 static private synchronized void initialize(TypeDataBase db) {
62 Type type = db.lookupType("G1MonitoringSupport");
63
64 edenCommittedField = type.getCIntegerField("_eden_committed");
65 edenUsedField = type.getCIntegerField("_eden_used");
66 survivorCommittedField = type.getCIntegerField("_survivor_committed");
67 survivorUsedField = type.getCIntegerField("_survivor_used");
68 oldCommittedField = type.getCIntegerField("_old_committed");
69 oldUsedField = type.getCIntegerField("_old_used");
70 }
71
72 public long edenCommitted() {
73 return edenCommittedField.getValue(addr);
74 }
75
76 public long edenUsed() {
77 return edenUsedField.getValue(addr);
78 }
79
80 public long survivorCommitted() {
81 return survivorCommittedField.getValue(addr);
82 }
83
84 public long survivorUsed() {
85 return survivorUsedField.getValue(addr);
86 }
87
88 public long oldCommitted() {
89 return oldCommittedField.getValue(addr);
90 }
91
92 public long oldUsed() {
93 return oldUsedField.getValue(addr);
94 }
95
96 public G1MonitoringSupport(Address addr) {
97 super(addr);
98 }
99 }