author | Jussi Ryoma <ext-jussi.s.ryoma@nokia.com> |
Fri, 27 Aug 2010 12:21:46 +0300 | |
changeset 3 | 045ade241ef5 |
parent 0 | 818e61de6cd1 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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using System; |
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using System.Text; |
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using System.Text.RegularExpressions; |
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using System.Collections.Generic; |
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using SymbianUtils.Range; |
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using EM=DExcPlugin.ExpressionManager.DExcExpressionManager; |
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|
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namespace DExcPlugin.Extractor |
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{ |
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internal class DExcExtractor |
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{ |
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#region Events |
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public enum TEvent |
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{ |
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EEventExtractedAllData |
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} |
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public delegate void EventHandler( TEvent aEvent, DExcExtractor aExtractor ); |
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public event EventHandler StateChanged; |
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#endregion |
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#region Constructors |
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public DExcExtractor() |
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{ |
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Init(); |
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} |
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#endregion |
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|
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#region API |
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public void Init() |
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{ |
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iState = TState.EStateIdle; |
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iData = new DExcExtractedData(); |
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iLists = new Dictionary<TState, DExcExtractorList>(); |
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iCurrentLineNumber = 0; |
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// Null (really just exists to catch a state transition) |
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// ======================================================= |
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CreateList( TState.EStateIdle, DExcExtractorListType.EListNull ).AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.LogStart, TState.EStateHeader ) ); |
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// Header |
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// ======================================================= |
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CreateList( TState.EStateHeader, DExcExtractorListType.EListHeader ).AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.ThreadName, TState.EStateThreadInfo ) ); |
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// Thread info |
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// =========== |
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DExcExtractorListThreadInfo listThreadInfo = new DExcExtractorListThreadInfo( TState.EStateThreadInfo, DExcExtractorListType.EListThread ); |
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PrepareList( listThreadInfo, EM.ThreadName, EM.ThreadId, EM.ThreadStackRange, EM.ThreadPanicDetails ); |
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listThreadInfo.AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.RegistersExceptionStart, TState.EStateRegisterInfoException ) ); |
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listThreadInfo.AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.RegistersUserStart, TState.EStateRegisterInfoUser ) ); |
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// Registers (exception) |
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// ===================== |
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DExcExtractorList listRegisterInfoException = CreateList( TState.EStateRegisterInfoException, DExcExtractorListType.EListRegistersException, |
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EM.RegistersExceptionSet1, |
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EM.RegistersExceptionSet2 ); |
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listRegisterInfoException.AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.RegistersUserStart, TState.EStateRegisterInfoUser ) ); |
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// Registers (user) |
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// ================ |
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DExcExtractorList listRegisterInfoUser = CreateList( TState.EStateRegisterInfoUser, DExcExtractorListType.EListRegistersUser, |
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EM.RegistersUserCPSR, |
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EM.RegistersUserSet ); |
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// Since code segs are optional, we want to record that we at least saw the header text (which is mandatory). This |
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// tracking allows us to validate that we have received/observed data for all states. |
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listRegisterInfoUser.AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.CodeSegmentsStart, TState.EStateCodeSegments ) ); |
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// Code segments |
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// ============= |
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DExcExtractorList listCodeSegments = CreateList( TState.EStateCodeSegments, DExcExtractorListType.EListCodeSegments, EM.CodeSegmentsEntry ); |
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// We need to transition state to "stack data", but we must be sure not to throw away the state line we just encountered. |
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listCodeSegments.AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.StackDataEntry, TState.EStateStackData ) ); |
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// Stack data |
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// ========== |
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DExcExtractorListStackData listStackData = new DExcExtractorListStackData( TState.EStateStackData, DExcExtractorListType.EListStackData ); |
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PrepareList( listStackData, EM.StackDataEntry ); |
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listStackData.AddExpression( DExcExtractorEntry.NewMatchSaveAndTransition( EM.LogStart, TState.EStateHeader ) ); |
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// We want to observe the stack data as it arrives so that we can identify when all stack data has been supplied. |
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listStackData.StackChanged += new DExcExtractorListStackData.StackDataChangeHandler( StackDataChanged ); |
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} |
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public void Init( string aStackFileName ) |
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{ |
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104 |
Init(); |
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105 |
// |
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106 |
DExcExtractorListStackData stackData = (DExcExtractorListStackData) iLists[ TState.EStateStackData ]; |
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107 |
stackData.Prime( aStackFileName ); |
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108 |
} |
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109 |
|
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110 |
public bool Offer( string aLine, long aLineNumber ) |
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111 |
{ |
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112 |
bool consumed = false; |
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113 |
|
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114 |
// Cache line number - we use this to update the data starting position |
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115 |
// when the state is changed. |
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116 |
iCurrentLineNumber = aLineNumber; |
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117 |
|
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118 |
// Get list for current state |
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119 |
DExcExtractorList list = CurrentList; |
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120 |
if ( list != null ) |
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121 |
{ |
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122 |
consumed = list.Offer( aLine, aLineNumber, this ); |
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123 |
} |
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124 |
|
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125 |
return consumed; |
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126 |
} |
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127 |
|
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128 |
public void Finialize() |
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129 |
{ |
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130 |
// If we were parsing code segs but we didn't get any stack |
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131 |
// data then we must ensure we still notify when we've reached |
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132 |
// the end of the code seg data (or else no crash item will be |
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133 |
// created). |
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134 |
switch ( State ) |
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135 |
{ |
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136 |
case TState.EStateIdle: |
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137 |
// Already finished or not started |
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138 |
return; |
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139 |
default: |
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140 |
break; |
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141 |
} |
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142 |
|
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143 |
// Did we create entries in all non-idle lists? |
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144 |
bool haveEntriesForAllLists = ListsAreValid; |
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145 |
if ( haveEntriesForAllLists ) |
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146 |
{ |
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147 |
NotifyEvent( TEvent.EEventExtractedAllData ); |
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148 |
State = TState.EStateIdle; |
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149 |
} |
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150 |
} |
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151 |
#endregion |
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152 |
|
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153 |
#region Properties |
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154 |
public TState State |
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155 |
{ |
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156 |
get { return iState; } |
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157 |
set |
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158 |
{ |
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159 |
if ( value != iState ) |
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160 |
{ |
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161 |
TState oldState = value; |
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162 |
iState = value; |
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163 |
// |
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164 |
if ( oldState == TState.EStateIdle ) |
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165 |
{ |
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166 |
// Was idle, now not - set starting line number |
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167 |
iData.LineNumber = iCurrentLineNumber; |
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168 |
} |
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169 |
else if ( iState == TState.EStateIdle ) |
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170 |
{ |
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171 |
Init(); |
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172 |
} |
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173 |
} |
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174 |
} |
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175 |
} |
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|
176 |
|
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177 |
public DExcExtractedData CurrentData |
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178 |
{ |
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179 |
get { return iData; } |
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180 |
} |
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|
181 |
|
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182 |
public DExcExtractorList CurrentList |
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183 |
{ |
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184 |
get |
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185 |
{ |
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186 |
DExcExtractorList ret = null; |
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187 |
// |
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188 |
if ( iLists.ContainsKey( State ) ) |
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189 |
{ |
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190 |
ret = iLists[ State ]; |
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191 |
} |
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192 |
// |
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193 |
return ret; |
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194 |
} |
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195 |
} |
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196 |
#endregion |
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197 |
|
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198 |
#region Event handlers |
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199 |
private void StackDataChanged( DExcExtractorListStackData aSelf ) |
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200 |
{ |
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201 |
DExcExtractorListThreadInfo threadInfo = (DExcExtractorListThreadInfo) iLists[ TState.EStateThreadInfo ]; |
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202 |
AddressRange range = threadInfo.StackRange; |
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203 |
if ( range.IsValid ) |
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204 |
{ |
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|
205 |
uint lastAddress = aSelf.StackData.Last.Address; |
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206 |
if ( lastAddress == range.Max - 1 ) |
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207 |
{ |
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208 |
NotifyEvent( TEvent.EEventExtractedAllData ); |
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209 |
State = TState.EStateIdle; |
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210 |
} |
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211 |
} |
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212 |
} |
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|
213 |
#endregion |
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|
214 |
|
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#region Internal enumerations |
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internal enum TState |
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{ |
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EStateIdle = 0, |
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EStateHeader, |
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EStateThreadInfo, |
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EStateRegisterInfoException, |
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EStateRegisterInfoUser, |
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EStateCodeSegments, |
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EStateStackData, |
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} |
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#endregion |
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|
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#region Internal methods |
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private void NotifyEvent( TEvent aEvent ) |
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{ |
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if ( StateChanged != null ) |
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{ |
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StateChanged( aEvent, this ); |
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} |
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} |
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|
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private void PrepareList( DExcExtractorList aList, params Regex[] aExpressions ) |
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{ |
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foreach ( Regex exp in aExpressions ) |
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{ |
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DExcExtractorEntry entry = DExcExtractorEntry.NewMatchAndSave( exp ); |
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aList.AddExpression( entry ); |
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} |
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// |
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iLists.Add( aList.State, aList ); |
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iData.Add( aList ); |
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} |
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|
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private DExcExtractorList CreateList( TState aAssociatedState, DExcExtractorListType aType, params Regex[] aExpressions ) |
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{ |
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DExcExtractorList ret = new DExcExtractorList( aAssociatedState, aType ); |
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PrepareList( ret, aExpressions ); |
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return ret; |
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} |
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|
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private bool ListsAreValid |
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{ |
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get |
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{ |
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int countThreadInfo = iLists[ TState.EStateThreadInfo ].Count; |
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int countRegUser = iLists[ TState.EStateRegisterInfoUser ].Count; |
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int countCodeSegs = iLists[ TState.EStateCodeSegments ].Count; |
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int countStackData = ((DExcExtractorListStackData) iLists[ TState.EStateStackData ]).StackData.Count; |
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// |
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bool valid = ( countThreadInfo >= 3 ) && ( countRegUser > 0 ) && ( countCodeSegs > 0 ) && ( countStackData > 0 ); |
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return valid; |
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} |
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} |
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#endregion |
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|
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#region From System.Object |
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public override string ToString() |
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{ |
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string ret = iData.ToString(); |
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return ret; |
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} |
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#endregion |
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|
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#region Data members |
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private TState iState; |
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private long iCurrentLineNumber = 0; |
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private DExcExtractedData iData = new DExcExtractedData(); |
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private Dictionary<TState, DExcExtractorList> iLists = new Dictionary<TState, DExcExtractorList>(); |
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#endregion |
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} |
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} |