Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/PerfMemory.java @ 12226:7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
Reviewed-by: coleenp, mgerdin, hseigel
| author | ehelin |
|---|---|
| date | Mon, 12 Aug 2013 17:37:02 +0200 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2004, 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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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 |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.runtime; | |
| 26 | |
| 27 import java.util.*; | |
| 28 import sun.jvm.hotspot.debugger.*; | |
| 29 import sun.jvm.hotspot.oops.*; | |
| 30 import sun.jvm.hotspot.types.*; | |
| 31 | |
| 32 public class PerfMemory { | |
| 33 private static AddressField startField; | |
| 34 private static AddressField endField; | |
| 35 private static AddressField topField; | |
| 36 private static CIntegerField capacityField; | |
| 37 private static AddressField prologueField; | |
| 38 private static JIntField initializedField; | |
| 39 | |
| 40 static { | |
| 41 VM.registerVMInitializedObserver(new Observer() { | |
| 42 public void update(Observable o, Object data) { | |
| 43 initialize(VM.getVM().getTypeDataBase()); | |
| 44 } | |
| 45 }); | |
| 46 } | |
| 47 | |
| 48 private static synchronized void initialize(TypeDataBase db) { | |
| 49 Type type = db.lookupType("PerfMemory"); | |
| 50 startField = type.getAddressField("_start"); | |
| 51 endField = type.getAddressField("_end"); | |
| 52 topField = type.getAddressField("_top"); | |
| 53 capacityField = type.getCIntegerField("_capacity"); | |
| 54 prologueField = type.getAddressField("_prologue"); | |
| 55 initializedField = type.getJIntField("_initialized"); | |
| 56 } | |
| 57 | |
| 58 // Accessors | |
| 59 public static Address start() { | |
| 60 return startField.getValue(); | |
| 61 } | |
| 62 | |
| 63 public static Address end() { | |
| 64 return endField.getValue(); | |
| 65 } | |
| 66 | |
| 67 public static Address top() { | |
| 68 return topField.getValue(); | |
| 69 } | |
| 70 | |
| 71 public static long capacity() { | |
| 72 return capacityField.getValue(); | |
| 73 } | |
| 74 | |
| 75 public static boolean initialized() { | |
| 76 return ((int) initializedField.getValue()) != 0; | |
| 77 } | |
| 78 | |
| 79 public static PerfDataPrologue prologue() { | |
| 80 return (PerfDataPrologue) VMObjectFactory.newObject( | |
| 81 PerfDataPrologue.class, prologueField.getValue()); | |
| 82 } | |
| 83 | |
| 84 public static boolean contains(Address addr) { | |
| 85 return start() != null && | |
| 86 addr.minus(start()) >= 0 && | |
| 87 end().minus(addr) > 0; | |
| 88 } | |
| 89 | |
| 90 // an interface supplied to iterate PerfDataEntries | |
| 91 public static interface PerfDataEntryVisitor { | |
| 92 // returns false to stop the iteration | |
| 93 public boolean visit(PerfDataEntry pde); | |
| 94 } | |
| 95 | |
| 96 public static void iterate(PerfDataEntryVisitor visitor) { | |
| 97 PerfDataPrologue header = prologue(); | |
| 98 int off = header.entryOffset(); | |
| 99 int num = header.numEntries(); | |
| 100 Address addr = header.getAddress(); | |
| 101 | |
| 102 for (int i = 0; i < num; i++) { | |
| 103 PerfDataEntry pde = (PerfDataEntry) VMObjectFactory.newObject( | |
| 104 PerfDataEntry.class, addr.addOffsetTo(off)); | |
| 105 off += pde.entryLength(); | |
| 106 if (visitor.visit(pde) == false) return; | |
| 107 } | |
| 108 } | |
| 109 } |