Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/memory/FreeList.java @ 7440:79f492f184d0
8004982: JDK8 source with GPL header errors
Reviewed-by: ohair
author | katleman |
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date | Thu, 20 Dec 2012 16:24:51 -0800 |
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1 /* |
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2 * @(#)FreeList.java |
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3 * |
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4 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. |
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5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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6 * |
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7 * This code is free software; you can redistribute it and/or modify it |
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8 * under the terms of the GNU General Public License version 2 only, as |
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9 * published by the Free Software Foundation. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 * |
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25 */ |
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26 |
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27 package sun.jvm.hotspot.memory; |
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28 |
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29 import java.util.*; |
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30 import sun.jvm.hotspot.debugger.*; |
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31 import sun.jvm.hotspot.types.*; |
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32 import sun.jvm.hotspot.runtime.*; |
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33 |
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34 public class FreeList extends VMObject { |
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35 static { |
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36 VM.registerVMInitializedObserver(new Observer() { |
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37 public void update(Observable o, Object data) { |
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38 initialize(VM.getVM().getTypeDataBase()); |
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39 } |
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40 }); |
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41 } |
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42 |
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43 private static synchronized void initialize(TypeDataBase db) { |
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44 Type type = db.lookupType("FreeList"); |
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45 sizeField = type.getCIntegerField("_size"); |
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46 countField = type.getCIntegerField("_count"); |
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47 headerSize = type.getSize(); |
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48 } |
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49 |
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50 // Fields |
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51 private static CIntegerField sizeField; |
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52 private static CIntegerField countField; |
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53 private static long headerSize; |
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54 |
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55 //Constructor |
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56 public FreeList(Address address) { |
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57 super(address); |
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58 } |
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59 |
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60 // Accessors |
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61 public long size() { |
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62 return sizeField.getValue(addr); |
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63 } |
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64 |
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65 public long count() { |
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66 return countField.getValue(addr); |
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67 } |
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68 |
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69 public static long sizeOf() { |
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70 return headerSize; |
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71 } |
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72 } |