Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/ParallelScavengeHeap.java @ 17736:58fc1b1523dc
8034079: G1: Refactor the HeapRegionSet hierarchy
Reviewed-by: tschatzl, pliden
author | brutisso |
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date | Fri, 14 Mar 2014 10:15:46 +0100 |
parents | da91efe96a93 |
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0 | 1 /* |
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
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15 * You should have received a copy of the GNU General Public License version | |
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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_interface.*; | |
32 import sun.jvm.hotspot.runtime.*; | |
33 import sun.jvm.hotspot.types.*; | |
34 | |
35 public class ParallelScavengeHeap extends CollectedHeap { | |
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("ParallelScavengeHeap"); | |
46 youngGenField = type.getAddressField("_young_gen"); | |
47 oldGenField = type.getAddressField("_old_gen"); | |
48 } | |
49 | |
50 public ParallelScavengeHeap(Address addr) { | |
51 super(addr); | |
52 } | |
53 | |
54 // Fields | |
55 private static AddressField youngGenField; | |
56 private static AddressField oldGenField; | |
57 | |
58 // Accessors | |
59 public PSYoungGen youngGen() { | |
60 return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue()); | |
61 } | |
62 | |
63 public PSOldGen oldGen() { | |
64 return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue()); | |
65 } | |
66 | |
67 public long capacity() { | |
68 return youngGen().capacity() + oldGen().capacity(); | |
69 } | |
70 | |
71 public long used() { | |
72 return youngGen().used() + oldGen().used(); | |
73 } | |
74 | |
75 public boolean isIn(Address a) { | |
76 if (youngGen().isIn(a)) { | |
77 return true; | |
78 } | |
79 | |
80 if (oldGen().isIn(a)) { | |
81 return true; | |
82 } | |
83 | |
84 return false; | |
85 } | |
86 | |
87 public CollectedHeapName kind() { | |
88 return CollectedHeapName.PARALLEL_SCAVENGE_HEAP; | |
89 } | |
90 | |
91 public void printOn(PrintStream tty) { | |
92 tty.print("ParallelScavengeHeap [ "); | |
93 youngGen().printOn(tty); | |
94 oldGen().printOn(tty); | |
95 tty.print(" ] "); | |
96 } | |
97 } |