Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/memory/DictionaryEntry.java @ 554:78144dc3db03
Merge
author | never |
---|---|
date | Tue, 13 Jan 2009 14:02:19 -0800 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
line wrap: on
line source
/* * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.memory; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.utilities.*; public class DictionaryEntry extends sun.jvm.hotspot.utilities.HashtableEntry { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) { Type type = db.lookupType("DictionaryEntry"); pdSetField = type.getAddressField("_pd_set"); loaderField = type.getOopField("_loader"); } // Fields private static AddressField pdSetField; private static sun.jvm.hotspot.types.OopField loaderField; // Accessors public ProtectionDomainEntry pdSet() { Address tmp = pdSetField.getValue(addr); return (ProtectionDomainEntry) VMObjectFactory.newObject( ProtectionDomainEntry.class, tmp); } public Oop loader() { return VM.getVM().getObjectHeap().newOop(loaderField.getValue(addr)); } public Klass klass() { return (Klass) literal(); } public DictionaryEntry(Address addr) { super(addr); } public boolean equals(Symbol className, Oop classLoader) { InstanceKlass ik = (InstanceKlass) klass(); Oop loader = loader(); if (! ik.getName().equals(className)) { return false; } else { return (loader == null)? (classLoader == null) : (loader.equals(classLoader)); } } public boolean isValidProtectionDomain(Oop protectionDomain) { if (protectionDomain == null) { return true; } else { return containsProtectionDomain(protectionDomain); } } public boolean containsProtectionDomain(Oop protectionDomain) { InstanceKlass ik = (InstanceKlass) klass(); if (protectionDomain.equals(ik.getProtectionDomain())) { return true; // Succeeds trivially } for (ProtectionDomainEntry current = pdSet(); current != null; current = current.next()) { if (protectionDomain.equals(current.protectionDomain())) { return true; } } return false; } /* covariant return type :-( public DictionaryEntry next() { return (DictionaryEntry) super.next(); } For now, let the caller cast it .. */ }