Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/PSYoungGen.java @ 12023:d1034bd8cefc
8022284: Hide internal data structure in PhaseCFG
Summary: Hide private node to block mapping using public interface
Reviewed-by: kvn, roland
author | adlertz |
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date | Wed, 07 Aug 2013 17:56:19 +0200 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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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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6941466: Oracle rebranding changes for Hotspot repositories
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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
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.gc_implementation.parallelScavenge; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 | |
30 import sun.jvm.hotspot.debugger.*; | |
31 import sun.jvm.hotspot.gc_implementation.shared.*; | |
32 import sun.jvm.hotspot.memory.*; | |
33 import sun.jvm.hotspot.runtime.*; | |
34 import sun.jvm.hotspot.types.*; | |
35 | |
36 public class PSYoungGen extends VMObject { | |
37 static { | |
38 VM.registerVMInitializedObserver(new Observer() { | |
39 public void update(Observable o, Object data) { | |
40 initialize(VM.getVM().getTypeDataBase()); | |
41 } | |
42 }); | |
43 } | |
44 | |
45 private static synchronized void initialize(TypeDataBase db) { | |
46 Type type = db.lookupType("PSYoungGen"); | |
47 edenSpaceField = type.getAddressField("_eden_space"); | |
48 fromSpaceField = type.getAddressField("_from_space"); | |
49 toSpaceField = type.getAddressField("_to_space"); | |
50 } | |
51 | |
52 public PSYoungGen(Address addr) { | |
53 super(addr); | |
54 } | |
55 | |
56 // Fields | |
57 private static AddressField edenSpaceField; | |
58 private static AddressField fromSpaceField; | |
59 private static AddressField toSpaceField; | |
60 | |
61 // Accessors | |
62 public MutableSpace edenSpace() { | |
63 return (MutableSpace) VMObjectFactory.newObject(MutableSpace.class, edenSpaceField.getValue(addr)); | |
64 } | |
65 | |
66 public MutableSpace fromSpace() { | |
67 return (MutableSpace) VMObjectFactory.newObject(MutableSpace.class, fromSpaceField.getValue(addr)); | |
68 } | |
69 | |
70 public MutableSpace toSpace() { | |
71 return (MutableSpace) VMObjectFactory.newObject(MutableSpace.class, toSpaceField.getValue(addr)); | |
72 } | |
73 | |
74 public long capacity() { | |
75 return edenSpace().capacity() + fromSpace().capacity(); | |
76 } | |
77 | |
78 public long used() { | |
79 return edenSpace().used() + fromSpace().used(); | |
80 } | |
81 | |
82 public boolean isIn(Address a) { | |
83 if (edenSpace().contains(a)) { | |
84 return true; | |
85 } | |
86 | |
87 if (fromSpace().contains(a)) { | |
88 return true; | |
89 } | |
90 return false; | |
91 } | |
92 | |
93 public void printOn(PrintStream tty) { | |
94 tty.print("PSYoungGen [ "); | |
95 tty.print("eden = "); | |
96 edenSpace().printOn(tty); | |
97 tty.print(", from = "); | |
98 fromSpace().printOn(tty); | |
99 tty.print(", to = "); | |
100 toSpace().printOn(tty); | |
101 tty.print(" ] "); | |
102 } | |
103 } |