1 /* 2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.memory; 26 27 import java.util.*; 28 import sun.jvm.hotspot.debugger.*; 29 import sun.jvm.hotspot.oops.*; 30 import sun.jvm.hotspot.runtime.*; 31 import sun.jvm.hotspot.types.*; 32 33 public class ProtectionDomainEntry extends VMObject { 34 private static AddressField nextField; 35 private static AddressField pdCacheField; 36 37 static { 38 VM.registerVMInitializedObserver(new Observer() { 39 public void update(Observable o, Object data) { 40 initialize(VM.getVM().getTypeDataBase()); 41 } 42 }); 43 } 44 45 private static synchronized void initialize(TypeDataBase db) { 46 Type type = db.lookupType("ProtectionDomainEntry"); 47 48 nextField = type.getAddressField("_next"); 49 pdCacheField = type.getAddressField("_pd_cache"); 50 } 51 52 public ProtectionDomainEntry(Address addr) { 53 super(addr); 54 } 55 56 public ProtectionDomainEntry next() { 57 return (ProtectionDomainEntry) VMObjectFactory.newObject(ProtectionDomainEntry.class, nextField.getValue(addr)); 58 } 59 60 public Oop protectionDomain() { 61 ProtectionDomainCacheEntry pd_cache = (ProtectionDomainCacheEntry) 62 VMObjectFactory.newObject(ProtectionDomainCacheEntry.class, pdCacheField.getValue(addr)); 63 return pd_cache.protectionDomain(); 64 } 65 }