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annotate graal/com.oracle.graal.debug/src/com/oracle/graal/debug/internal/DebugValueMap.java @ 5061:e808627bd16f

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Renamed projects.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 19:24:17 +0100
parents graal/com.oracle.max.graal.debug/src/com/oracle/graal/debug/internal/DebugValueMap.java@4ed4295ce15f
children 4eb9895d9afe
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.debug.internal;
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24
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25 import java.util.*;
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26
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27 public class DebugValueMap {
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28
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29 private static List<DebugValueMap> topLevelMaps = new ArrayList<>();
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30
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31 private long[] values;
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32 private List<DebugValueMap> children;
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33 private String name;
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34
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35 public DebugValueMap(String name) {
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36 this.name = name;
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37 }
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38
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39 public void setCurrentValue(int index, long l) {
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40 ensureSize(index);
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41 values[index] = l;
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42 }
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43
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44 public long getCurrentValue(int index) {
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45 ensureSize(index);
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46 return values[index];
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47 }
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48
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49 private void ensureSize(int index) {
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50 if (values == null) {
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51 values = new long[index + 1];
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52 }
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53 if (values.length <= index) {
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54 values = Arrays.copyOf(values, index + 1);
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55 }
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56 }
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57
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58 private int capacity() {
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59 return (values == null) ? 0 : values.length;
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60 }
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61
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62 public void addChild(DebugValueMap map) {
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63 if (children == null) {
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64 children = new ArrayList<>(4);
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65 }
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66 children.add(map);
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67 }
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68
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69 public List<DebugValueMap> getChildren() {
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70 if (children == null) {
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71 return Collections.emptyList();
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72 } else {
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73 return Collections.unmodifiableList(children);
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74 }
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75 }
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76
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77 public boolean hasChildren() {
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78 return children != null && !children.isEmpty();
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79 }
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80
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81 public String getName() {
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82 return this.name;
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83 }
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84
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85 @Override
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86 public String toString() {
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87 return "DebugValueMap<" + getName() + ">";
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88 }
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89
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90 public static synchronized void registerTopLevel(DebugValueMap map) {
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91 topLevelMaps.add(map);
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92 }
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93
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94 public static synchronized List<DebugValueMap> getTopLevelMaps() {
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95 return topLevelMaps;
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96 }
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97
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98 public void normalize() {
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99 if (this.hasChildren()) {
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100 Map<String, DebugValueMap> occurred = new HashMap<>();
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101 for (DebugValueMap map : this.children) {
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102 String mapName = map.getName();
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103 if (!occurred.containsKey(mapName)) {
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104 occurred.put(mapName, map);
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105 map.normalize();
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106 } else {
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107 occurred.get(mapName).mergeWith(map);
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108 occurred.get(mapName).normalize();
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109 }
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110 }
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111
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112 if (occurred.values().size() < children.size()) {
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113 // At least one duplicate was found.
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114 children.clear();
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115 for (DebugValueMap map : occurred.values()) {
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116 children.add(map);
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117 map.normalize();
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118 }
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119 }
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120 }
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121 }
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122
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123 private void mergeWith(DebugValueMap map) {
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124 if (map.hasChildren()) {
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125 if (hasChildren()) {
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126 children.addAll(map.children);
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127 } else {
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128 children = map.children;
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129 }
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130 map.children = null;
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131 }
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132
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133 int size = Math.max(this.capacity(), map.capacity());
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134 ensureSize(size);
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135 for (int i = 0; i < size; ++i) {
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136 long curValue = getCurrentValue(i);
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137 long otherValue = map.getCurrentValue(i);
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138 setCurrentValue(i, curValue + otherValue);
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139 }
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140 }
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141
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142 public void group() {
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143 if (this.hasChildren()) {
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144 List<DebugValueMap> oldChildren = new ArrayList<>(this.children);
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145 this.children.clear();
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146 for (DebugValueMap map : oldChildren) {
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147 mergeWith(map);
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148 }
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149 }
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150 }
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151 }