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1 /* |
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2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * |
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5 * Redistribution and use in source and binary forms, with or without |
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6 * modification, are permitted provided that the following conditions are met: |
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7 * |
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8 * - Redistributions of source code must retain the above copyright notice, |
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9 * this list of conditions and the following disclaimer. |
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10 * - Redistributions in binary form must reproduce the above copyright notice, |
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11 * this list of conditions and the following disclaimer in the documentation |
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12 * and/or other materials provided with the distribution. |
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13 * - Neither the name of Nokia Corporation nor the names of its contributors |
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14 * may be used to endorse or promote products derived from this software |
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15 * without specific prior written permission. |
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16 * |
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17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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27 * POSSIBILITY OF SUCH DAMAGE. |
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28 * |
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29 * Initial Contributors: |
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30 * Nokia Corporation - initial contribution. |
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31 * |
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32 * Contributors: |
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33 * |
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34 * Description: |
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35 * |
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36 */ |
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37 |
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38 using System; |
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39 using System.Collections; |
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40 using System.Collections.Generic; |
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41 using System.Text; |
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42 using SymbianStructuresLib.Debug.Symbols; |
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43 using SymbianUtils.RawItems; |
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44 using SymbianUtils.Utilities; |
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45 using HeapLib.Array; |
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46 using HeapLib.Relationships; |
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47 using HeapLib.Cells.Descriptors; |
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48 |
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49 namespace HeapLib.Cells |
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50 { |
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51 public class HeapCell : IEnumerable<RawItem>, IEquatable<HeapCell> |
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52 { |
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53 #region Enumerations |
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54 public enum TRegion |
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55 { |
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56 EHeader = 0, |
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57 EPayload, |
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58 EBeforeCell, |
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59 EAfterCell |
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60 } |
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61 |
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62 public enum TType : byte |
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63 { |
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64 EAllocated = 0, |
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65 EFree |
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66 } |
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67 |
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68 public enum TBuildType |
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69 { |
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70 ERelease = 0, |
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71 EDebug = 1 |
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72 } |
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73 |
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74 public enum TDescriptorType |
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75 { |
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76 // These are Symbian's descriptor types |
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77 EBufC = 0, |
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78 EPtrC, |
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79 EPtr, |
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80 EBuf, |
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81 EBufCPtr, |
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82 |
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83 // This are specific to this app |
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84 ENullTerminatedString, |
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85 EUnknown, |
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86 } |
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87 #endregion |
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88 |
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89 #region Constructors & destructor |
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90 public HeapCell() |
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91 { |
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92 iRelationshipManager = new RelationshipManager(this); |
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93 } |
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94 |
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95 internal HeapCell(HeapCell aCell) |
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96 : this() |
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97 { |
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98 iTag = aCell.Tag; |
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99 iAddress = aCell.Address; |
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100 iType = aCell.Type; |
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101 iFlags = aCell.iFlags; |
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102 iSymbol[0] = aCell.iSymbol[0]; |
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103 iSymbol[1] = aCell.iSymbol[1]; |
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104 iSymbol[2] = aCell.iSymbol[2]; |
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105 iRawItems = aCell.iRawItems; |
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106 iDescriptorInfo = aCell.iDescriptorInfo; |
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107 iHeaderRawItems = aCell.iHeaderRawItems; |
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108 iLength = aCell.iLength; |
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109 // |
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110 iRelationshipManager = aCell.RelationshipManager; |
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111 iChecksum = new CRC32Checksum(aCell.Checksum); |
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112 } |
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113 |
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114 internal HeapCell(uint aAddress, uint aLength, TType aType) |
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115 : this() |
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116 { |
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117 iAddress = aAddress; |
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118 iType = aType; |
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119 // |
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120 iHeaderRawItems.Clear(); |
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121 AddRawItemHeader(new RawItem(aAddress, aLength)); |
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122 } |
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123 #endregion |
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124 |
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125 #region Constants |
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126 public const uint KHeapCellSizeAllocatedUREL = 4; // Just length |
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127 public const uint KHeapCellSizeAllocatedUDEB = 12; // Length + Allocation Number + Nesting Level |
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128 public const uint KHeapCellSizeFree = 8; // Length + Pointer to next free cell |
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129 #endregion |
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130 |
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131 #region API |
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132 public void AddRawItem(RawItem aItem) |
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133 { |
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134 RawItems.Add(aItem); |
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135 // |
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136 byte[] dataArray = aItem.DataArray; |
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137 iChecksum.Checksum(dataArray); |
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138 } |
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139 |
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140 public void AddRawItemHeader(RawItem aItem) |
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141 { |
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142 // Not checksummed |
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143 iHeaderRawItems.Add(aItem); |
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144 if (iHeaderRawItems.Count == 1) |
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145 { |
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146 iLength = iHeaderRawItems[0].Data; |
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147 } |
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148 } |
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149 |
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150 public uint Remainder(uint aAddress) |
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151 { |
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152 uint ret = (Address + Length) - aAddress; |
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153 return ret; |
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154 } |
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155 |
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156 public static uint CellHeaderSize(TType aType) |
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157 { |
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158 uint ret = AllocatedCellHeaderSize; |
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159 if (aType == TType.EFree) |
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160 { |
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161 ret = FreeCellHeaderSize; |
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162 } |
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163 return ret; |
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164 } |
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165 |
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166 public static uint AllocatedCellSizeByBuildType(TBuildType aType) |
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167 { |
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168 uint size = 0; |
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169 // |
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170 switch (aType) |
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171 { |
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172 case TBuildType.EDebug: |
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173 size = KHeapCellSizeAllocatedUDEB; |
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174 break; |
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175 case TBuildType.ERelease: |
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176 size = KHeapCellSizeAllocatedUREL; |
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177 break; |
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178 } |
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179 // |
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180 return size; |
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181 } |
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182 |
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183 public TRegion RegionForAddress(uint aAddress) |
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184 { |
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185 uint address = Address; |
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186 // |
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187 TRegion ret = TRegion.EBeforeCell; |
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188 // |
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189 if (aAddress < address) |
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190 { |
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191 ret = TRegion.EBeforeCell; |
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192 } |
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193 else |
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194 { |
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195 uint endAddress = EndAddress; |
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196 // |
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197 if (aAddress > endAddress) |
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198 { |
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199 ret = TRegion.EAfterCell; |
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200 } |
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201 else |
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202 { |
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203 uint startOfPayload = StartOfPayloadAddress; |
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204 // |
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205 if (aAddress >= startOfPayload) |
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206 { |
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207 ret = TRegion.EPayload; |
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208 } |
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209 else |
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210 { |
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211 ret = TRegion.EHeader; |
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212 } |
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213 } |
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214 } |
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215 // |
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216 return ret; |
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217 } |
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218 |
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219 public TRegion RegionForAddress(uint aAddress, out int aRemainingUntilNextBoundary) |
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220 { |
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221 TRegion region = RegionForAddress(aAddress); |
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222 // |
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223 switch (region) |
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224 { |
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225 default: |
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226 aRemainingUntilNextBoundary = -1; |
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227 break; |
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228 case TRegion.EHeader: |
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229 case TRegion.EPayload: |
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230 if (region == TRegion.EHeader) |
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231 { |
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232 uint startOfPayload = StartOfPayloadAddress; |
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233 aRemainingUntilNextBoundary = (int)(startOfPayload - aAddress); |
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234 } |
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235 else |
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236 { |
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237 uint endAddress = EndAddress; |
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238 aRemainingUntilNextBoundary = (int)(endAddress - aAddress + 1); |
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239 } |
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240 break; |
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241 } |
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242 // |
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243 return region; |
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244 } |
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245 |
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246 public bool IsIdentical(HeapCell aCell) |
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247 { |
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248 bool identical = false; |
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249 // |
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250 if (aCell.Length == this.Length && |
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251 aCell.PossibleVTableAddress == this.PossibleVTableAddress && |
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252 aCell.AllocationNumber == this.AllocationNumber && |
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253 aCell.NestingLevel == this.NestingLevel && |
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254 aCell.RawItems.Count == this.RawItems.Count) |
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255 { |
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256 identical = (aCell.Checksum == this.Checksum); |
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257 } |
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258 // |
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259 return identical; |
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260 } |
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261 |
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262 internal void ConstructionComplete(Statistics.HeapStatistics aStats) |
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263 { |
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264 if (Type == TType.EAllocated) |
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265 { |
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266 iDescriptorInfo = Descriptors.DescriptorAlgorithmManager.DescriptorInfo(this, aStats); |
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267 } |
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268 } |
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269 #endregion |
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270 |
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271 #region Properties |
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272 public HeapCell.TType Type |
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273 { |
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274 get { return iType; } |
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275 set { iType = value; } |
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276 } |
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277 |
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278 public string TypeString |
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279 { |
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280 get |
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281 { |
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282 string ret = string.Empty; |
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283 // |
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284 switch (Type) |
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285 { |
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286 case TType.EAllocated: |
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287 ret = "Allocated"; |
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288 break; |
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289 case TType.EFree: |
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290 ret = "Free"; |
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291 break; |
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292 } |
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293 // |
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294 return ret; |
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295 } |
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296 } |
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297 |
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298 // <summary> |
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299 // The index is the unique number assigned to each cell as it is |
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300 // added to the heap data for a given heap. This operation is |
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301 // performed by the reconstructor during parsing. |
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302 // </summary> |
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303 public uint Index |
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304 { |
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305 get { return iIndex; } |
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306 set { iIndex = value; } |
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307 } |
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308 |
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309 public uint Address |
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310 { |
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311 get { return iAddress; } |
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312 set { iAddress = value; } |
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313 } |
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314 |
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315 public uint StartOfPayloadAddress |
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316 { |
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317 get |
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318 { |
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319 uint ret = Address; |
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320 // |
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321 if (Type == TType.EAllocated) |
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322 { |
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323 ret += HeaderSize; |
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324 } |
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325 else if (Type == TType.EFree) |
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326 { |
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327 ret += KHeapCellSizeFree; |
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328 } |
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329 else |
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330 { |
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331 System.Diagnostics.Debug.Assert(false); |
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332 } |
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333 // |
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334 return ret; |
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335 } |
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336 } |
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337 |
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338 public uint EndAddress |
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339 { |
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340 get { return iAddress + iLength - 1; } |
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341 } |
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342 |
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343 public uint Length |
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344 { |
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345 // Optimisation: we cache the length when adding the first |
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346 // header raw item to avoid having to repeatedly access |
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347 // the raw items array during initial heap preparation. |
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348 get { return iLength; } |
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349 } |
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350 |
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351 public uint NestingLevel |
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352 { |
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353 get |
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354 { |
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355 // Only applicable to allocated cells in debug builds |
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356 uint ret = 0; |
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357 // |
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358 if (Type == TType.EAllocated && IsDebugAllocator) |
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359 { |
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360 System.Diagnostics.Debug.Assert(HeaderRawItems.Count >= 2); |
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361 RawItem item = HeaderRawItems[1]; // Always 2nd raw item in header |
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362 ret = item.Data; |
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363 } |
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364 // |
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365 return ret; |
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366 } |
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367 } |
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368 |
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369 public uint AllocationNumber |
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370 { |
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371 get |
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372 { |
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373 // Only applicable to allocated cells in debug builds |
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374 uint ret = 0; |
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375 // |
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376 if (Type == TType.EAllocated && IsDebugAllocator) |
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377 { |
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378 System.Diagnostics.Debug.Assert(HeaderRawItems.Count >= 3); |
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379 RawItem item = HeaderRawItems[2]; // Always 3rd raw item in header |
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380 ret = item.Data; |
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381 } |
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382 // |
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383 return ret; |
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384 } |
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385 } |
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386 |
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387 public uint PossibleVTableAddress |
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388 { |
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389 get |
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390 { |
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391 // This is always the first raw item |
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392 uint ret = 0; |
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393 // |
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394 if (RawItems.Count > 0) |
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395 { |
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396 ret = RawItems[0].Data; |
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397 } |
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398 // |
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399 return ret; |
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400 } |
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401 } |
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402 |
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403 public Symbol Symbol |
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404 { |
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405 get { return iSymbol[0]; } |
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406 set { iSymbol[0] = value; } |
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407 } |
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408 |
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409 public Symbol Symbol2 |
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410 { |
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411 get { return iSymbol[1]; } |
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412 set { iSymbol[1] = value; } |
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413 } |
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414 |
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415 public Symbol Symbol3 |
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416 { |
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417 get { return iSymbol[2]; } |
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418 set { iSymbol[2] = value; } |
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419 } |
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420 |
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421 public string SymbolString |
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422 { |
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423 get |
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424 { |
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425 return SymbolStringRef(false); |
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426 } |
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427 } |
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428 |
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429 private string SymbolStringRef(bool reference) |
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430 { |
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431 StringBuilder ret = new StringBuilder(); |
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432 |
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433 if (Type == TType.EAllocated) |
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434 { |
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435 if (Symbol != null) |
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436 { |
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437 ret.Append(Symbol.NameWithoutVTablePrefix); |
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438 } |
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439 else if (IsDescriptor) |
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440 { |
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441 ret.Append("[Descriptor] " + DescriptorTextBeautified); |
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442 } |
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443 } |
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444 else if (Type == TType.EFree) |
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445 { |
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446 ret.Append("[Free]"); |
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447 if (Symbol != null) |
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448 { |
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449 ret.Append(" "); |
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450 ret.Append(Symbol.NameWithoutVTablePrefix); |
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451 } |
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452 } |
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453 |
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454 // If no text as yet identified, then return [Unknown], if there is not unique referrer. |
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455 // If the referrer is unique, or if all referrers are of the same known type, |
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456 // instead of [Unknown], you can see [Part of XXX], where XXX is the type of the referrer. |
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457 if (ret.Length == 0) |
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458 { |
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459 if (!reference) |
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460 { |
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461 if (iRelationshipManager.ReferencedByUnique != null) |
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462 { |
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463 string symbolString = iRelationshipManager.ReferencedByUnique.SymbolStringRef(true); |
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464 |
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465 if (!symbolString.Equals("[Unknown]")) |
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466 { |
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467 ret.Append("[Part of "); |
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468 ret.Append(symbolString); |
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469 ret.Append("]"); |
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470 } |
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471 else |
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472 { |
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473 ret.Append("[Unknown]"); |
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474 } |
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475 } |
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476 else |
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477 { |
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478 ret.Append("[Unknown]"); |
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479 } |
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480 } |
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481 else |
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482 { |
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483 ret.Append("[Unknown]"); |
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484 } |
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485 } |
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486 return ret.ToString(); |
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487 } |
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488 |
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489 public string SymbolStringWithoutDescriptorPrefix |
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490 { |
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491 get |
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492 { |
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493 string ret = SymbolString; |
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494 // |
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495 if (IsDescriptor) |
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496 { |
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497 ret = "[" + DescriptorLength.ToString("d4") + "] " + DescriptorTextBeautifiedWithoutLength; |
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498 } |
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499 // |
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500 return ret; |
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501 } |
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502 } |
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503 |
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504 public uint HeaderSize |
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505 { |
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506 get |
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507 { |
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508 uint size = 0; |
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509 // |
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510 switch (Type) |
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511 { |
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512 case TType.EAllocated: |
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513 size = HeapCell.AllocatedCellHeaderSize; |
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514 break; |
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515 case TType.EFree: |
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516 size = KHeapCellSizeFree; |
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517 break; |
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518 } |
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519 // |
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520 return size; |
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521 } |
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522 } |
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523 |
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524 public uint PayloadLength |
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525 { |
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526 get { return (EndAddress - StartOfPayloadAddress) + 1; } |
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527 } |
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528 |
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529 public RawItem this[uint aAddress] |
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530 { |
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531 get |
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532 { |
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533 RawItem ret = null; |
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534 // |
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535 TRegion region = RegionForAddress(aAddress); |
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536 if (region == TRegion.EPayload || region == TRegion.EHeader) |
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537 { |
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538 if (region == TRegion.EHeader) |
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539 { |
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540 uint offset = aAddress - Address; |
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541 int index = System.Convert.ToInt32(offset / RawItem.KSizeOfOneRawItemInBytes); |
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542 // |
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543 if (index < 0 || index >= HeaderRawItems.Count) |
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544 { |
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545 throw new ArgumentException("Address 0x" + aAddress.ToString("x8") + " is beyond this cell's header"); |
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546 } |
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547 // |
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548 ret = HeaderRawItems[index]; |
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549 } |
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550 else |
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551 { |
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552 // Payload |
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553 uint offset = aAddress - StartOfPayloadAddress; |
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554 int index = System.Convert.ToInt32(offset / RawItem.KSizeOfOneRawItemInBytes); |
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555 // |
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556 if (index < 0 || index >= RawItems.Count) |
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557 { |
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558 throw new ArgumentException("Address 0x" + aAddress.ToString("x8") + " is beyond this cell's payload"); |
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559 } |
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560 // |
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561 ret = this[index]; |
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562 } |
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563 } |
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564 else |
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565 { |
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566 throw new ArgumentException("Address 0x" + aAddress.ToString("x8") + " is not within this cell's extent"); |
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567 } |
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568 return ret; |
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569 } |
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570 } |
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571 |
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572 public RawItem this[int aIndex] |
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573 { |
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574 get |
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575 { |
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576 return iRawItems[aIndex]; |
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577 } |
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578 } |
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579 |
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580 public RawItemCollection RawItems |
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581 { |
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582 get { return iRawItems; } |
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583 } |
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584 |
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585 public RawItemCollection HeaderRawItems |
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586 { |
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587 get { return iHeaderRawItems; } |
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588 } |
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589 |
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590 public long CombinedLinkedCellPayloadLengths |
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591 { |
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592 get |
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593 { |
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594 int depth = 0; |
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595 long ret = DoGetCombinedLinkedCellPayloadLengths(ref depth); |
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596 return ret; |
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597 } |
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598 } |
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599 |
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600 public long PayloadLengthIncludingLinkedCells |
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601 { |
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602 get |
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603 { |
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604 long ret = PayloadLength; |
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605 ret += RelationshipManager.PayloadLengthOfEmbeddedCells; |
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606 // |
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607 return ret; |
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608 } |
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609 } |
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610 |
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611 public object Tag |
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612 { |
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613 get { return iTag; } |
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614 set { iTag = value; } |
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615 } |
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616 |
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617 public uint Checksum |
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618 { |
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619 get { return iChecksum.Value; } |
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620 } |
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621 |
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622 public bool IsUnknown |
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623 { |
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624 get { return Symbol == null && Type == TType.EAllocated; } |
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625 } |
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626 #endregion |
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627 |
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628 #region Descriptor related functionality |
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629 public TDescriptorType DescriptorType |
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630 { |
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631 get |
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632 { |
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633 TDescriptorType ret = TDescriptorType.EUnknown; |
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634 // |
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635 if (IsDescriptor && iDescriptorInfo != null) |
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636 { |
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637 ret = iDescriptorInfo.Type; |
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638 } |
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639 // |
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640 return ret; |
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641 } |
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642 } |
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643 |
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644 public bool IsDescriptorUnicode |
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645 { |
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646 get |
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647 { |
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648 bool ret = false; |
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649 // |
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650 if (IsDescriptor && iDescriptorInfo != null) |
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651 { |
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652 ret = iDescriptorInfo.IsUnicode; |
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653 } |
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654 // |
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655 return ret; |
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656 } |
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657 } |
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658 |
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659 public bool IsDescriptor |
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660 { |
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661 get |
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662 { |
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663 return (iDescriptorInfo != null); |
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664 } |
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665 } |
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666 |
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667 public int DescriptorLength |
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668 { |
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669 get |
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670 { |
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671 int length = 0; |
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672 // |
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673 if (IsDescriptor && iDescriptorInfo != null) |
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674 { |
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675 length = iDescriptorInfo.Length; |
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676 } |
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677 // |
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678 return length; |
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679 } |
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680 } |
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681 |
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682 public string DescriptorText |
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683 { |
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684 get |
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685 { |
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686 string ret = string.Empty; |
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687 // |
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688 if (IsDescriptor && iDescriptorInfo != null) |
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689 { |
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690 ret = iDescriptorInfo.Text; |
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691 } |
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692 // |
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693 return ret; |
|
694 } |
|
695 } |
|
696 |
|
697 public string DescriptorTextBeautifiedWithoutLength |
|
698 { |
|
699 get |
|
700 { |
|
701 StringBuilder ret = new StringBuilder(); |
|
702 // |
|
703 string des = DescriptorText; |
|
704 if (des.Length > KMaxSymbolStringDescriptorLength) |
|
705 { |
|
706 ret.Append(" \""); |
|
707 ret.Append(des.Substring(0, KMaxSymbolStringDescriptorLength)); |
|
708 ret.Append("...\""); |
|
709 } |
|
710 else |
|
711 { |
|
712 ret.Append(" \""); |
|
713 ret.Append(des); |
|
714 ret.Append("\""); |
|
715 } |
|
716 // |
|
717 return ret.ToString(); |
|
718 } |
|
719 } |
|
720 |
|
721 public string DescriptorTextBeautified |
|
722 { |
|
723 get |
|
724 { |
|
725 StringBuilder ret = new StringBuilder(); |
|
726 // |
|
727 ret.Append("{"); |
|
728 ret.Append(DescriptorLength.ToString("d4")); |
|
729 ret.Append("}"); |
|
730 // |
|
731 ret.Append(DescriptorTextBeautifiedWithoutLength); |
|
732 // |
|
733 return ret.ToString(); |
|
734 } |
|
735 } |
|
736 #endregion |
|
737 |
|
738 #region Static properties |
|
739 public static bool IsDebugAllocator |
|
740 { |
|
741 get |
|
742 { |
|
743 return AllocatedCellHeaderSize == AllocatedCellSizeByBuildType(TBuildType.EDebug); |
|
744 } |
|
745 } |
|
746 |
|
747 public static uint FreeCellHeaderSize |
|
748 { |
|
749 get { return KFreeCellHeaderSize; } |
|
750 } |
|
751 |
|
752 public static uint AllocatedCellHeaderSize |
|
753 { |
|
754 get { return iAllocatedCellHeaderSize; } |
|
755 set { iAllocatedCellHeaderSize = value; } |
|
756 } |
|
757 #endregion |
|
758 |
|
759 #region Relationships |
|
760 public RelationshipManager RelationshipManager |
|
761 { |
|
762 get { return iRelationshipManager; } |
|
763 } |
|
764 #endregion |
|
765 |
|
766 #region IEnumerable Members |
|
767 IEnumerator IEnumerable.GetEnumerator() |
|
768 { |
|
769 return new HeapCellRawItemEnumerator(this); |
|
770 } |
|
771 |
|
772 IEnumerator<RawItem> IEnumerable<RawItem>.GetEnumerator() |
|
773 { |
|
774 return new HeapCellRawItemEnumerator(this); |
|
775 } |
|
776 #endregion |
|
777 |
|
778 #region IEquatable<HeapCell> Members |
|
779 public bool Equals(HeapCell aOther) |
|
780 { |
|
781 bool ret = (aOther.Address == this.Address); |
|
782 return ret; |
|
783 } |
|
784 #endregion |
|
785 |
|
786 #region Operators |
|
787 public static bool operator ==(HeapCell aLeft, HeapCell aRight) |
|
788 { |
|
789 bool ret = false; |
|
790 |
|
791 // If both are null, or both are same instance, return true. |
|
792 if (System.Object.ReferenceEquals(aLeft, aRight)) |
|
793 { |
|
794 ret = true; |
|
795 } |
|
796 else if (((object)aLeft == null) || ((object)aRight == null)) |
|
797 { |
|
798 // If one is null, but not both, return false. |
|
799 ret = false; |
|
800 } |
|
801 else |
|
802 { |
|
803 // Return true if the fields match: |
|
804 ret = (aLeft.Address == aRight.Address); |
|
805 } |
|
806 // |
|
807 return ret; |
|
808 } |
|
809 |
|
810 public static bool operator !=(HeapCell aLeft, HeapCell aRight) |
|
811 { |
|
812 return !(aLeft == aRight); |
|
813 } |
|
814 #endregion |
|
815 |
|
816 #region From System.Object |
|
817 public override int GetHashCode() |
|
818 { |
|
819 return Address.GetHashCode(); |
|
820 } |
|
821 |
|
822 public override bool Equals(object aObject) |
|
823 { |
|
824 bool ret = false; |
|
825 // |
|
826 if (aObject is HeapCell) |
|
827 { |
|
828 HeapCell otherCell = (HeapCell)aObject; |
|
829 ret = Equals(otherCell); |
|
830 } |
|
831 // |
|
832 return ret; |
|
833 } |
|
834 |
|
835 public override string ToString() |
|
836 { |
|
837 string ret = "[0x" + Address.ToString("x8") + " " + TypeString + "]"; |
|
838 return ret; |
|
839 } |
|
840 |
|
841 public string ToStringExtended() |
|
842 { |
|
843 StringBuilder ret = new StringBuilder(); |
|
844 |
|
845 // Type |
|
846 if (Type == HeapCell.TType.EAllocated) |
|
847 { |
|
848 if (IsDescriptor) |
|
849 { |
|
850 ret.Append("[D]"); |
|
851 } |
|
852 else |
|
853 { |
|
854 ret.Append("[A]"); |
|
855 } |
|
856 } |
|
857 else |
|
858 { |
|
859 ret.Append("[F]"); |
|
860 } |
|
861 |
|
862 // Address |
|
863 ret.Append(" 0x" + Address.ToString("x8")); |
|
864 |
|
865 // Symbol (if present) |
|
866 if (Symbol != null) |
|
867 { |
|
868 ret.Append(" - " + SymbolString); |
|
869 } |
|
870 else if (IsDescriptor) |
|
871 { |
|
872 ret.Append(" - " + DescriptorTextBeautified); |
|
873 } |
|
874 |
|
875 return ret.ToString(); |
|
876 } |
|
877 #endregion |
|
878 |
|
879 #region Internal flags |
|
880 [Flags] |
|
881 private enum TFlags |
|
882 { |
|
883 EFlagsNone = 0, |
|
884 EFlagsInCombiningCheck = 1 |
|
885 } |
|
886 #endregion |
|
887 |
|
888 #region Internal constants |
|
889 private const int KMaxRecursiveLinkedCellDepth = 5; // levels |
|
890 private const int KMaxSymbolStringDescriptorLength = 128; |
|
891 private const int KFreeCellHeaderSize = 8; // always |
|
892 #endregion |
|
893 |
|
894 #region Internal methods |
|
895 private long DoGetCombinedLinkedCellPayloadLengths(ref int aDepth) |
|
896 { |
|
897 long ret = PayloadLength; |
|
898 // |
|
899 if (aDepth <= KMaxRecursiveLinkedCellDepth) |
|
900 { |
|
901 iFlags |= TFlags.EFlagsInCombiningCheck; |
|
902 // |
|
903 foreach (RelationshipInfo relInfo in RelationshipManager.EmbeddedReferencesTo) |
|
904 { |
|
905 HeapCell linkedCell = relInfo.ToCell; |
|
906 bool isInLinkCheck = ((linkedCell.iFlags & TFlags.EFlagsInCombiningCheck) == TFlags.EFlagsInCombiningCheck); |
|
907 if (isInLinkCheck == false) |
|
908 { |
|
909 ++aDepth; |
|
910 ret += linkedCell.DoGetCombinedLinkedCellPayloadLengths(ref aDepth); |
|
911 } |
|
912 else |
|
913 { |
|
914 } |
|
915 } |
|
916 // |
|
917 iFlags &= ~TFlags.EFlagsInCombiningCheck; |
|
918 } |
|
919 // |
|
920 return ret; |
|
921 } |
|
922 #endregion |
|
923 |
|
924 #region Data members |
|
925 private static uint iAllocatedCellHeaderSize = 0; |
|
926 private object iTag; |
|
927 private uint iIndex; |
|
928 private uint iAddress; |
|
929 private uint iLength; |
|
930 private TType iType = TType.EAllocated; |
|
931 private TFlags iFlags = TFlags.EFlagsNone; |
|
932 private Symbol[] iSymbol = new Symbol[3] { null, null, null }; |
|
933 private CRC32Checksum iChecksum = new CRC32Checksum(); |
|
934 private DescriptorInfo iDescriptorInfo = null; |
|
935 private RawItemCollection iRawItems = new RawItemCollection(); |
|
936 private RawItemCollection iHeaderRawItems = new RawItemCollection(); |
|
937 private readonly RelationshipManager iRelationshipManager; |
|
938 #endregion |
|
939 } |
|
940 } |