Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/memory/DictionaryEntry.java @ 10343:6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
Summary: Inject protection_domain, signers, init_lock into java_lang_Class
Reviewed-by: stefank, dholmes, sla
author | coleenp |
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date | Wed, 22 May 2013 14:37:49 -0400 |
parents | da91efe96a93 |
children | de6a9e811145 |
rev | line source |
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0 | 1 /* |
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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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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 } |