Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/DictionaryEntry.java @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 4ca6dc0799b6 |
| children |
| rev | line source |
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| 0 | 1 /* |
| 17524 | 2 * Copyright (c) 2003, 2013, 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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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.memory; | |
| 26 | |
| 27 import java.util.*; | |
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28 import sun.jvm.hotspot.classfile.ClassLoaderData; |
| 0 | 29 import sun.jvm.hotspot.debugger.*; |
| 30 import sun.jvm.hotspot.oops.*; | |
| 31 import sun.jvm.hotspot.types.*; | |
| 32 import sun.jvm.hotspot.runtime.*; | |
| 33 import sun.jvm.hotspot.utilities.*; | |
| 34 | |
| 35 public class DictionaryEntry extends sun.jvm.hotspot.utilities.HashtableEntry { | |
| 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("DictionaryEntry"); | |
| 46 pdSetField = type.getAddressField("_pd_set"); | |
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47 loaderDataField = type.getAddressField("_loader_data"); |
| 0 | 48 } |
| 49 | |
| 50 // Fields | |
| 51 private static AddressField pdSetField; | |
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52 private static AddressField loaderDataField; |
| 0 | 53 |
| 54 // Accessors | |
| 55 | |
| 56 public ProtectionDomainEntry pdSet() { | |
| 57 Address tmp = pdSetField.getValue(addr); | |
| 58 return (ProtectionDomainEntry) VMObjectFactory.newObject( | |
| 59 ProtectionDomainEntry.class, tmp); | |
| 60 } | |
| 61 | |
| 62 public Oop loader() { | |
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63 return loaderData().getClassLoader(); |
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64 } |
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65 |
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66 public ClassLoaderData loaderData() { |
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67 return ClassLoaderData.instantiateWrapperFor(loaderDataField.getValue(addr)); |
| 0 | 68 } |
| 69 | |
| 70 public Klass klass() { | |
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71 return (Klass)Metadata.instantiateWrapperFor(literalValue()); |
| 0 | 72 } |
| 73 | |
| 74 public DictionaryEntry(Address addr) { | |
| 75 super(addr); | |
| 76 } | |
| 77 | |
| 78 public boolean equals(Symbol className, Oop classLoader) { | |
| 79 InstanceKlass ik = (InstanceKlass) klass(); | |
| 80 Oop loader = loader(); | |
| 81 if (! ik.getName().equals(className)) { | |
| 82 return false; | |
| 83 } else { | |
| 84 return (loader == null)? (classLoader == null) : | |
| 85 (loader.equals(classLoader)); | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 public boolean isValidProtectionDomain(Oop protectionDomain) { | |
| 90 if (protectionDomain == null) { | |
| 91 return true; | |
| 92 } else { | |
| 93 return containsProtectionDomain(protectionDomain); | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 public boolean containsProtectionDomain(Oop protectionDomain) { | |
| 98 InstanceKlass ik = (InstanceKlass) klass(); | |
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99 // Currently unimplemented and not used. |
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100 // if (protectionDomain.equals(ik.getJavaMirror().getProtectionDomain())) { |
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101 // return true; // Succeeds trivially |
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102 // } |
| 0 | 103 for (ProtectionDomainEntry current = pdSet(); current != null; |
| 104 current = current.next()) { | |
| 105 if (protectionDomain.equals(current.protectionDomain())) { | |
| 106 return true; | |
| 107 } | |
| 108 } | |
| 109 return false; | |
| 110 } | |
| 111 | |
| 112 /* covariant return type :-( | |
| 113 public DictionaryEntry next() { | |
| 114 return (DictionaryEntry) super.next(); | |
| 115 } | |
| 116 For now, let the caller cast it .. | |
| 117 */ | |
| 118 } |