Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/DefNewGeneration.java @ 196:d1605aabd0a1 jdk7-b30
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
| author | xdono |
|---|---|
| date | Wed, 02 Jul 2008 12:55:16 -0700 |
| parents | c70a245cad3a |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 2000-2008 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.memory; | |
| 26 | |
| 27 import java.io.*; | |
| 28 import java.util.*; | |
| 29 | |
| 30 import sun.jvm.hotspot.debugger.*; | |
| 31 import sun.jvm.hotspot.runtime.*; | |
| 32 import sun.jvm.hotspot.types.*; | |
| 33 | |
| 34 /** DefNewGeneration is a young generation containing eden, from- and | |
| 35 to-space. */ | |
| 36 | |
| 37 public class DefNewGeneration extends Generation { | |
| 38 protected static AddressField edenSpaceField; | |
| 39 protected static AddressField fromSpaceField; | |
| 40 protected static AddressField toSpaceField; | |
| 41 | |
| 42 static { | |
| 43 VM.registerVMInitializedObserver(new Observer() { | |
| 44 public void update(Observable o, Object data) { | |
| 45 initialize(VM.getVM().getTypeDataBase()); | |
| 46 } | |
| 47 }); | |
| 48 } | |
| 49 | |
| 50 private static synchronized void initialize(TypeDataBase db) { | |
| 51 Type type = db.lookupType("DefNewGeneration"); | |
| 52 | |
| 53 edenSpaceField = type.getAddressField("_eden_space"); | |
| 54 fromSpaceField = type.getAddressField("_from_space"); | |
| 55 toSpaceField = type.getAddressField("_to_space"); | |
| 56 } | |
| 57 | |
| 58 public DefNewGeneration(Address addr) { | |
| 59 super(addr); | |
| 60 } | |
| 61 | |
| 62 public Generation.Name kind() { | |
| 63 return Generation.Name.DEF_NEW; | |
| 64 } | |
| 65 | |
| 66 // Accessing spaces | |
| 67 public EdenSpace eden() { | |
| 68 return (EdenSpace) VMObjectFactory.newObject(EdenSpace.class, edenSpaceField.getValue(addr)); | |
| 69 } | |
| 70 | |
| 71 public ContiguousSpace from() { | |
| 72 return (ContiguousSpace) VMObjectFactory.newObject(ContiguousSpace.class, fromSpaceField.getValue(addr)); | |
| 73 } | |
| 74 | |
| 75 public ContiguousSpace to() { | |
| 76 return (ContiguousSpace) VMObjectFactory.newObject(ContiguousSpace.class, toSpaceField.getValue(addr)); | |
| 77 } | |
| 78 | |
| 79 public long capacity() { return eden().capacity() + from().capacity(); /* to() is only used during scavenge */ } | |
| 80 public long used() { return eden().used() + from().used(); /* to() is only used during scavenge */ } | |
| 81 public long free() { return eden().free() + from().free(); /* to() is only used during scavenge */ } | |
| 82 public long contiguousAvailable() { return eden().free(); } | |
| 83 | |
| 84 public String name() { | |
| 85 return "default new generation"; | |
| 86 } | |
| 87 | |
| 88 public void spaceIterate(SpaceClosure blk, boolean usedOnly) { | |
| 89 blk.doSpace(eden()); | |
| 90 blk.doSpace(from()); | |
| 91 if (!usedOnly) { | |
| 92 blk.doSpace(to()); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 public void printOn(PrintStream tty) { | |
| 97 tty.print(" eden"); | |
| 98 eden().printOn(tty); | |
|
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99 tty.print("\n from"); |
| 0 | 100 from().printOn(tty); |
|
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101 tty.print("\n to "); |
| 0 | 102 to().printOn(tty); |
| 103 } | |
| 104 } |