Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/utilities/Hashtable.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 | 3582bf76420e |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2003, 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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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.utilities; | |
| 26 | |
| 27 import java.util.*; | |
| 28 import sun.jvm.hotspot.debugger.*; | |
| 29 import sun.jvm.hotspot.types.*; | |
| 30 import sun.jvm.hotspot.runtime.*; | |
| 31 | |
| 32 public class Hashtable extends BasicHashtable { | |
| 33 static { | |
| 34 VM.registerVMInitializedObserver(new Observer() { | |
| 35 public void update(Observable o, Object data) { | |
| 36 initialize(VM.getVM().getTypeDataBase()); | |
| 37 } | |
| 38 }); | |
| 39 } | |
| 40 | |
| 41 private static synchronized void initialize(TypeDataBase db) { | |
| 42 // just to confirm that type exists | |
| 43 Type type = db.lookupType("Hashtable"); | |
| 44 } | |
| 45 | |
| 46 // derived class may return Class<? extends HashtableEntry> | |
| 47 protected Class getHashtableEntryClass() { | |
| 48 return HashtableEntry.class; | |
| 49 } | |
| 50 | |
| 51 public int hashToIndex(long fullHash) { | |
| 52 return (int) (fullHash % tableSize()); | |
| 53 } | |
| 54 | |
| 55 public Hashtable(Address addr) { | |
| 56 super(addr); | |
| 57 } | |
| 58 | |
| 59 // VM's Hashtable::hash_symbol | |
| 60 protected static long hashSymbol(byte[] buf) { | |
| 61 long h = 0; | |
| 62 int s = 0; | |
| 63 int len = buf.length; | |
| 64 while (len-- > 0) { | |
| 65 h = 31*h + (0xFFL & buf[s]); | |
| 66 s++; | |
| 67 } | |
| 68 return h & 0xFFFFFFFFL; | |
| 69 } | |
| 70 } |