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-- |
0
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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.IO; |
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using System.Collections.Generic; |
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using System.Text; |
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using System.Threading; |
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using SymbianUtils.Range; |
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|
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namespace SymbianSymbolLibTest |
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{ |
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class Program |
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{ |
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class Binary |
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{ |
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public string iFileName = string.Empty; |
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public byte[] iData = null; |
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public long iDataStart = 0; |
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public long iDataEnd = 0; |
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} |
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|
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class Binary2 |
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{ |
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public string iFileName = string.Empty; |
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public List<string> iData = new List<string>(); |
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} |
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|
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class Store |
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{ |
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public Store() |
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{ |
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} |
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|
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public void Add( string aFileName, Binary2 aData ) |
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{ |
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lock ( iEntries ) |
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{ |
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if ( !iEntries.ContainsKey( aFileName ) ) |
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{ |
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iEntries.Add( aFileName, aData ); |
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} |
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} |
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} |
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|
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public int Count |
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{ |
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get { return iEntries.Count; } |
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} |
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|
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public void Dump() |
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{ |
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} |
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|
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private Dictionary<string, Binary2> iEntries = new Dictionary<string, Binary2>(); |
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} |
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|
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class ThreadReader |
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{ |
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public delegate void CompletionHandler( ThreadReader aReader ); |
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public event CompletionHandler Completed = null; |
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|
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public ThreadReader( byte[] aData, int aStart, int aCount, Store aStore ) |
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{ |
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iData = aData; |
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iStart = aStart; |
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iCount = aCount; |
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iStore = aStore; |
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} |
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|
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public void Read() |
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{ |
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//System.Console.WriteLine( string.Format( "Reading starting - pos: 0x{0}, len: {1:d8}", iStart, iCount ) ); |
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DateTime timeStamp = DateTime.Now; |
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|
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Binary2 currentBinary = null; |
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|
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long binaryCount = 0; |
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long lineCount = 0; |
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using ( StreamReader reader = new StreamReader( new MemoryStream( iData, iStart, iCount ) ) ) |
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{ |
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string line = reader.ReadLine(); |
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while ( line != null ) |
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{ |
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++lineCount; |
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if ( line.StartsWith( "From " ) ) |
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{ |
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currentBinary = new Binary2(); |
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currentBinary.iFileName = line.Substring( 8 ); |
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// |
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++binaryCount; |
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iStore.Add( currentBinary.iFileName, currentBinary ); |
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} |
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else if ( currentBinary != null ) |
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{ |
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currentBinary.iData.Add( line ); |
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} |
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111 |
|
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112 |
line = reader.ReadLine(); |
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113 |
} |
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114 |
} |
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115 |
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116 |
DateTime endTime = DateTime.Now; |
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TimeSpan span = ( endTime - timeStamp ); |
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//System.Console.WriteLine( string.Format( "Reading complete - {0} time, {1} lines, {2} binaries", span, lineCount, binaryCount ) ); |
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119 |
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120 |
if ( Completed != null ) |
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121 |
{ |
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122 |
Completed( this ); |
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123 |
} |
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124 |
} |
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125 |
|
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126 |
private readonly byte[] iData; |
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private readonly int iStart; |
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private readonly int iCount; |
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129 |
private readonly Store iStore; |
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130 |
} |
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131 |
|
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132 |
class SymbolFile |
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133 |
{ |
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134 |
#region Constructors |
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135 |
public SymbolFile( FileInfo aFile ) |
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136 |
{ |
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iFile = aFile; |
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138 |
} |
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139 |
#endregion |
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140 |
|
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141 |
#region API |
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142 |
public void Read() |
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143 |
{ |
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144 |
Partition(); |
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145 |
// |
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146 |
iWaiter = new AutoResetEvent( false ); |
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147 |
for( int i=iReaders.Count-1; i>=0; i-- ) |
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148 |
{ |
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149 |
ThreadReader reader = iReaders[ i ]; |
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150 |
reader.Completed += new ThreadReader.CompletionHandler( Reader_Completed ); |
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151 |
ThreadPool.QueueUserWorkItem( new WaitCallback(StartReader ), reader ); |
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152 |
} |
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153 |
|
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154 |
// Now wait |
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155 |
using ( iWaiter ) |
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156 |
{ |
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157 |
iWaiter.WaitOne(); |
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158 |
} |
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159 |
iWaiter = null; |
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160 |
} |
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161 |
#endregion |
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162 |
|
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163 |
#region Properties |
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164 |
public int Count |
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165 |
{ |
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166 |
get { return iStore.Count; } |
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167 |
} |
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168 |
#endregion |
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169 |
|
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170 |
#region Event handlers |
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171 |
private void Reader_Completed( ThreadReader aReader ) |
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172 |
{ |
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173 |
iCompleted.Add( aReader ); |
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174 |
iReaders.Remove( aReader ); |
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175 |
// |
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176 |
if ( iReaders.Count == 0 ) |
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177 |
{ |
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178 |
iWaiter.Set(); |
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179 |
} |
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180 |
} |
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181 |
#endregion |
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182 |
|
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183 |
#region Internal methods |
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184 |
private static void StartReader( object aThreadReader ) |
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185 |
{ |
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186 |
ThreadReader reader = (ThreadReader) aThreadReader; |
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187 |
reader.Read(); |
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188 |
} |
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189 |
|
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190 |
private void Partition() |
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191 |
{ |
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192 |
// Read entire file into buffer |
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193 |
byte[] data = new byte[ iFile.Length ]; |
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194 |
using ( Stream reader = new FileStream( iFile.FullName, FileMode.Open ) ) |
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195 |
{ |
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196 |
reader.Read( data, 0, data.Length ); |
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197 |
} |
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198 |
|
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199 |
// This is the pattern we are searching for: |
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200 |
byte[] pattern = new byte[] { (byte) 'F', (byte) 'r', (byte) 'o', (byte) 'm', (byte) ' ', (byte) ' ', (byte) ' ', (byte) ' ' }; |
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201 |
|
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202 |
int threadCount = System.Environment.ProcessorCount; |
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203 |
int chunkSize = (int) iFile.Length / threadCount; |
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204 |
|
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205 |
// |
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206 |
int blockPosStart = 0; |
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207 |
for ( int i = 0; i < threadCount; i++ ) |
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208 |
{ |
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209 |
int pos = 0; |
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210 |
int blockPosEnd = Math.Min( data.Length - 1, blockPosStart + chunkSize ); |
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211 |
while ( pos >= 0 ) |
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212 |
{ |
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213 |
pos = Array.IndexOf( data, pattern[ 0 ], blockPosEnd ); |
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214 |
if ( pos > 0 ) |
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215 |
{ |
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216 |
if ( pos + 8 >= data.Length ) |
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217 |
{ |
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218 |
break; |
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219 |
} |
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220 |
else if ( pos + 8 < data.Length && data[ pos + 7 ] == pattern[ 7 ] ) |
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221 |
{ |
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|
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bool isMatch = CompareByteArrays( pattern, data, pos ); |
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if ( isMatch ) |
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{ |
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int length = pos - blockPosStart; |
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System.Console.WriteLine( string.Format( "Block {0:d2} @ 0x{1:x8}, length: {2:d8}", i, blockPosStart, length ) ); |
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// |
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ThreadReader reader = new ThreadReader( data, blockPosStart, length, iStore ); |
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iReaders.Add( reader ); |
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|
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blockPosStart = pos; |
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break; |
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} |
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} |
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235 |
else |
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236 |
{ |
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// Didn't find a match, move forwards |
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blockPosEnd = pos + 1; |
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239 |
} |
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240 |
} |
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241 |
else |
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242 |
{ |
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243 |
// Searched to end of file and didn't find another block, so just create |
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// a new reader for everything that remains. |
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int length2 = data.Length - blockPosStart; |
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System.Console.WriteLine( string.Format( "Block {0:d2} @ 0x{1:x8}, length: {2:d8}", i, blockPosStart, length2 ) ); |
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247 |
// |
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248 |
ThreadReader reader2 = new ThreadReader( data, blockPosStart, length2, iStore ); |
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iReaders.Add( reader2 ); |
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250 |
break; |
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251 |
} |
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252 |
} |
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253 |
} |
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254 |
} |
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255 |
|
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256 |
private static bool CompareByteArrays( byte[] aSearchFor, byte[] aSearchIn, int aStartPos ) |
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257 |
{ |
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258 |
bool areEqual = true; |
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259 |
// |
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260 |
for ( int i = aStartPos; i < aSearchFor.Length; i++ ) |
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261 |
{ |
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262 |
byte b = aSearchIn[ i ]; |
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263 |
byte c = aSearchFor[ i - aStartPos ]; |
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264 |
if ( b != c ) |
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265 |
{ |
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266 |
areEqual = false; |
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267 |
break; |
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268 |
} |
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269 |
} |
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270 |
// |
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271 |
return areEqual; |
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272 |
} |
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|
273 |
#endregion |
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274 |
|
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275 |
#region Data members |
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276 |
private readonly FileInfo iFile; |
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277 |
private AutoResetEvent iWaiter = null; |
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278 |
private Store iStore = new Store(); |
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279 |
private List<ThreadReader> iCompleted = new List<ThreadReader>(); |
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280 |
private List<ThreadReader> iReaders = new List<ThreadReader>(); |
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281 |
#endregion |
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282 |
} |
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|
283 |
|
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|
284 |
static void Main( string[] args ) |
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|
285 |
{ |
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|
286 |
string path = @"C:\Tool Demo Files\2. Crash Data\File43\CoreImage"; // C:\Tool Demo Files\2. Crash Data\File28\"; |
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|
287 |
DirectoryInfo dir = new DirectoryInfo( path ); |
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|
288 |
FileInfo[] files = dir.GetFiles( "*.symbol" ); |
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|
289 |
// |
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|
290 |
// |
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|
291 |
foreach ( FileInfo file in files ) |
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|
292 |
{ |
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|
293 |
// |
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|
294 |
DateTime timeStamp = DateTime.Now; |
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|
295 |
System.Console.WriteLine( string.Format( "[{0}] - Reading starting...", file.Name ) ); |
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|
296 |
|
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|
297 |
SymbolFile symbolFile = new SymbolFile( file ); |
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|
298 |
symbolFile.Read(); |
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|
299 |
|
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|
300 |
DateTime endTime = DateTime.Now; |
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|
301 |
TimeSpan span = ( endTime - timeStamp ); |
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|
302 |
|
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|
303 |
System.Console.WriteLine( string.Format( "[{0}] - Reading complete - {1} time, {2} binaries", file.Name, span, symbolFile.Count ) ); |
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|
304 |
System.Console.WriteLine( " " ); |
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|
305 |
System.Console.WriteLine( " " ); |
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|
306 |
System.Console.WriteLine( " " ); |
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|
307 |
System.Console.ReadKey(); |
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|
308 |
} |
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|
309 |
} |
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|
310 |
} |
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|
311 |
} |