Mercurial > hg > graal-jvmci-8
comparison agent/src/share/classes/sun/jvm/hotspot/memory/FreeList.java @ 152:c70a245cad3a
6670684: 4/5 SA command universe did not print out CMS space information
Summary: Forward port of Yumin's fix for 6670684 from HSX-11; Yumin verified the port was correct.
Reviewed-by: dcubed
author | dcubed |
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date | Fri, 09 May 2008 08:55:13 -0700 |
parents | |
children | d1605aabd0a1 |
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83:d3cd40645d0d | 152:c70a245cad3a |
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1 /* | |
2 * @(#)FreeList.java | |
3 * | |
4 * Copyright 2000-2007 Sun Microsystems, Inc. All Rights Reserved. | |
5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
6 * | |
7 * This code is free software; you can redistribute it and/or modify it | |
8 * under the terms of the GNU General Public License version 2 only, as | |
9 * published by the Free Software Foundation. | |
10 * | |
11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 * version 2 for more details (a copy is included in the LICENSE file that | |
15 * accompanied this code). | |
16 * | |
17 * You should have received a copy of the GNU General Public License version | |
18 * 2 along with this work; if not, write to the Free Software Foundation, | |
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 * | |
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
22 * CA 95054 USA or visit www.sun.com if you need additional information or | |
23 * have any questions. | |
24 * | |
25 */ | |
26 | |
27 package sun.jvm.hotspot.memory; | |
28 | |
29 import java.util.*; | |
30 import sun.jvm.hotspot.debugger.*; | |
31 import sun.jvm.hotspot.types.*; | |
32 import sun.jvm.hotspot.runtime.*; | |
33 | |
34 public class FreeList extends VMObject { | |
35 static { | |
36 VM.registerVMInitializedObserver(new Observer() { | |
37 public void update(Observable o, Object data) { | |
38 initialize(VM.getVM().getTypeDataBase()); | |
39 } | |
40 }); | |
41 } | |
42 | |
43 private static synchronized void initialize(TypeDataBase db) { | |
44 Type type = db.lookupType("FreeList"); | |
45 sizeField = type.getCIntegerField("_size"); | |
46 countField = type.getCIntegerField("_count"); | |
47 headerSize = type.getSize(); | |
48 } | |
49 | |
50 // Fields | |
51 private static CIntegerField sizeField; | |
52 private static CIntegerField countField; | |
53 private static long headerSize; | |
54 | |
55 //Constructor | |
56 public FreeList(Address address) { | |
57 super(address); | |
58 } | |
59 | |
60 // Accessors | |
61 public long size() { | |
62 return sizeField.getValue(addr); | |
63 } | |
64 | |
65 public long count() { | |
66 return countField.getValue(addr); | |
67 } | |
68 | |
69 public static long sizeOf() { | |
70 return headerSize; | |
71 } | |
72 } |