Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/ParallelScavengeHeap.java @ 17587:561045d22599 jdk8u11-b07
Added tag jdk8u11-b06 for changeset b73ee2b9027c
| author | katleman |
|---|---|
| date | Tue, 29 Apr 2014 12:51:45 -0700 |
| parents | da91efe96a93 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6964458: Reimplement class meta-data storage to use native memory
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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. |
| 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 |
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c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
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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 } |