Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPoolCacheEntry.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children | 136b78722a08 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2001, 2005, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
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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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.oops; | |
| 26 | |
| 27 import java.util.*; | |
| 28 import sun.jvm.hotspot.debugger.*; | |
| 29 import sun.jvm.hotspot.runtime.*; | |
| 30 import sun.jvm.hotspot.types.*; | |
| 31 | |
| 32 public class ConstantPoolCacheEntry { | |
| 33 private static long size; | |
| 34 private static long baseOffset; | |
| 35 private static CIntegerField indices; | |
| 36 private static sun.jvm.hotspot.types.OopField f1; | |
| 37 private static CIntegerField f2; | |
| 38 private static CIntegerField flags; | |
| 39 | |
| 40 private ConstantPoolCache cp; | |
| 41 private long offset; | |
| 42 | |
| 43 static { | |
| 44 VM.registerVMInitializedObserver(new Observer() { | |
| 45 public void update(Observable o, Object data) { | |
| 46 initialize(VM.getVM().getTypeDataBase()); | |
| 47 } | |
| 48 }); | |
| 49 } | |
| 50 | |
| 51 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
| 52 Type type = db.lookupType("ConstantPoolCacheEntry"); | |
| 53 size = type.getSize(); | |
| 54 | |
| 55 indices = type.getCIntegerField("_indices"); | |
| 56 f1 = type.getOopField ("_f1"); | |
| 57 f2 = type.getCIntegerField("_f2"); | |
| 58 flags = type.getCIntegerField("_flags"); | |
| 59 | |
| 60 type = db.lookupType("constantPoolCacheOopDesc"); | |
| 61 baseOffset = type.getSize(); | |
| 62 } | |
| 63 | |
| 64 ConstantPoolCacheEntry(ConstantPoolCache cp, int index) { | |
| 65 this.cp = cp; | |
| 66 offset = baseOffset + index * size; | |
| 67 } | |
| 68 | |
| 69 public int getConstantPoolIndex() { | |
| 70 return (int) (getIndices() & 0xFFFF); | |
| 71 } | |
| 72 | |
| 73 private long getIndices() { | |
| 74 return cp.getHandle().getCIntegerAt(indices.getOffset() + offset, indices.getSize(), indices.isUnsigned()); | |
| 75 } | |
| 76 | |
| 77 public Oop getF1() { | |
| 78 return cp.getHeap().newOop(cp.getHandle().getOopHandleAt(f1.getOffset() + offset)); | |
| 79 } | |
| 80 | |
| 81 public int getF2() { | |
| 82 return cp.getHandle().getJIntAt(f1.getOffset() + offset); | |
| 83 } | |
| 84 | |
| 85 public int getFlags() { | |
| 86 return cp.getHandle().getJIntAt(flags.getOffset() + offset); | |
| 87 } | |
| 88 | |
| 89 static NamedFieldIdentifier f1FieldName = new NamedFieldIdentifier("_f1"); | |
| 90 static NamedFieldIdentifier f2FieldName = new NamedFieldIdentifier("_f2"); | |
| 91 static NamedFieldIdentifier flagsFieldName = new NamedFieldIdentifier("_flags"); | |
| 92 | |
| 93 public void iterateFields(OopVisitor visitor) { | |
| 94 visitor.doOop(new OopField(f1FieldName, f1.getOffset() + offset, true), true); | |
| 95 visitor.doInt(new IntField(f2FieldName, f2.getOffset() + offset, true), true); | |
| 96 visitor.doInt(new IntField(flagsFieldName, flags.getOffset() + offset, true), true); | |
| 97 } | |
| 98 } |