Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/gc_implementation/shared/MutableSpace.java @ 6842:b9a9ed0f8eeb
7197424: update copyright year to match last edit in jdk8 hotspot repository
Summary: Update copyright year to 2012 for relevant files
Reviewed-by: dholmes, coleenp
author | mikael |
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date | Tue, 09 Oct 2012 10:09:34 -0700 |
parents | c18cbe5936b8 |
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0 | 1 /* |
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2 * Copyright (c) 2003, 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 |
c18cbe5936b8
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.gc_implementation.shared; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 | |
30 import sun.jvm.hotspot.debugger.*; | |
31 import sun.jvm.hotspot.memory.*; | |
32 import sun.jvm.hotspot.runtime.*; | |
33 import sun.jvm.hotspot.types.*; | |
34 | |
35 public class MutableSpace extends ImmutableSpace { | |
36 static { | |
37 VM.registerVMInitializedObserver(new Observer() { | |
38 public void update(Observable o, Object data) { | |
39 initialize(VM.getVM().getTypeDataBase()); | |
40 } | |
41 }); | |
42 } | |
43 | |
44 private static synchronized void initialize(TypeDataBase db) { | |
45 Type type = db.lookupType("MutableSpace"); | |
46 topField = type.getAddressField("_top"); | |
47 } | |
48 | |
49 public MutableSpace(Address addr) { | |
50 super(addr); | |
51 } | |
52 | |
53 // Fields | |
54 private static AddressField topField; | |
55 | |
56 // Accessors | |
57 public Address top() { return topField.getValue(addr); } | |
58 | |
59 /** In bytes */ | |
60 public long used() { | |
61 return top().minus(bottom()); | |
62 } | |
63 | |
64 /** returns all MemRegions where live objects are */ | |
65 public List/*<MemRegion>*/ getLiveRegions() { | |
66 List res = new ArrayList(); | |
67 res.add(new MemRegion(bottom(), top())); | |
68 return res; | |
69 } | |
70 | |
71 public void printOn(PrintStream tty) { | |
72 tty.print(" [" + bottom() + "," + | |
73 top() + "," + end() + "] "); | |
74 } | |
75 } |