1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Definitions for the class DAnalyzeToolEventHandler. |
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15 * |
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16 */ |
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17 |
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18 |
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19 // INCLUDE FILES |
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20 #include "analyzetooleventhandler.h" |
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21 #include <kernel/kern_priv.h> |
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22 |
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23 // CONSTANTS |
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24 |
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25 // The handler mutex literal |
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26 _LIT( KHandlerMutexName, "AnalyzeToolHandlerMutex" ); |
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27 |
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28 // The handle data mutex literal |
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29 _LIT( KDataMutexName, "AnalyzeToolDataMutex" ); |
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30 |
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31 |
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32 // ================= MEMBER FUNCTIONS ========================================= |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // DAnalyzeToolEventHandler::Create() |
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36 // C++ default constructor. |
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37 // ----------------------------------------------------------------------------- |
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38 // |
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39 TInt DAnalyzeToolEventHandler::Create( DLogicalDevice* aDevice, |
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40 const TUint aProcessId ) |
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41 { |
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42 LOGSTR1( "ATDD DAnalyzeToolEventHandler::Create()" ); |
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43 TInt ret( KErrNone ); |
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44 |
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45 // Store owner process ID |
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46 iProcessId = aProcessId; |
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47 LOGSTR2( "ATDD DAnalyzeToolEventHandler::Create > iProcessId %d", |
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48 iProcessId ); |
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49 |
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50 // Open the device |
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51 ret = aDevice->Open(); |
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52 if ( ret != KErrNone ) |
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53 return ret; |
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54 iDevice = aDevice; |
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55 |
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56 // Create mutex for the handler |
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57 ret = Kern::MutexCreate( iHandlerMutex, KHandlerMutexName, KMutexOrdDebug ); |
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58 if ( ret != KErrNone ) |
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59 return ret; |
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60 // Create mutex for the data |
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61 ret = Kern::MutexCreate( iDataMutex, KDataMutexName, KMutexOrdDebug-1 ); |
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62 if ( ret != KErrNone ) |
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63 return ret; |
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64 |
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65 // Add handler to the handler queue |
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66 return Add(); |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // DAnalyzeToolEventHandler::~DAnalyzeToolEventHandler() |
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71 // C++ default constructor. |
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72 // ----------------------------------------------------------------------------- |
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73 // |
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74 DAnalyzeToolEventHandler::~DAnalyzeToolEventHandler() |
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75 { |
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76 LOGSTR1( "ATDD DAnalyzeToolEventHandler::~DAnalyzeToolEventHandler()" ); |
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77 |
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78 CancelInformLibraryEvent(); |
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79 |
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80 // Close the data mutex |
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81 if ( iDataMutex ) |
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82 { |
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83 iDataMutex->Close( NULL ); |
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84 } |
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85 |
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86 // Close the handler mutex |
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87 if ( iHandlerMutex ) |
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88 { |
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89 iHandlerMutex->Close( NULL ); |
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90 } |
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91 |
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92 // Close the device mutex |
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93 if ( iDevice ) |
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94 { |
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95 iDevice->Close( NULL ); |
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96 } |
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97 } |
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98 |
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99 // ----------------------------------------------------------------------------- |
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100 // DAnalyzeToolEventHandler::EventHandler() |
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101 // Function for receiving kernel events |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 TUint DAnalyzeToolEventHandler::EventHandler( TKernelEvent aEvent, |
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105 TAny* a1, TAny* a2, TAny* aThis ) |
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106 { |
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107 |
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108 // Clarify the event type |
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109 switch ( aEvent) |
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110 { |
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111 case EEventRemoveLibrary: |
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112 { |
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113 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventHandler() - EEventRemoveLibrary" ); |
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114 // Cast the pointer to the handler |
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115 DAnalyzeToolEventHandler* handler = |
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116 ( ( DAnalyzeToolEventHandler* ) aThis ); |
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117 // Create variable for library information |
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118 TLibraryEventInfo info; |
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119 // Set as library remove event |
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120 info.iEventType = TLibraryEventInfo::ELibraryRemoved; |
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121 // Handle the event |
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122 handler->HandleLibraryEvent( ( DLibrary* ) a1, ( DThread* ) a2, info ); |
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123 break; |
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124 } |
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125 case EEventAddLibrary: |
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126 { |
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127 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventHandler() - EEventAddLibrary" ); |
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128 // Cast the pointer to the handler |
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129 DAnalyzeToolEventHandler* handler = |
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130 ( ( DAnalyzeToolEventHandler* ) aThis ); |
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131 // Create variable for library information |
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132 TLibraryEventInfo info; |
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133 // Set as library remove event |
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134 info.iEventType = TLibraryEventInfo::ELibraryAdded; |
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135 // Handle the event |
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136 handler->HandleLibraryEvent( ( DLibrary* ) a1, ( DThread* ) a2, info ); |
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137 break; |
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138 } |
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139 case EEventHwExc: |
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140 { |
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141 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventHandler() - EEventHwExc" ); |
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142 break; |
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143 } |
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144 case EEventSwExc: |
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145 { |
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146 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventHandler() - EEventSwExc" ); |
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147 break; |
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148 } |
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149 case EEventRemoveThread: |
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150 { |
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151 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventHandler() - EEventRemoveThread" ); |
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152 break; |
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153 } |
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154 case EEventKillThread: |
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155 { |
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156 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventHandler() - EEventKillThread" ); |
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157 |
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158 // Cast the pointer to the handler |
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159 DAnalyzeToolEventHandler* handler = |
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160 ( ( DAnalyzeToolEventHandler* ) aThis ); |
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161 |
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162 // Create variable for library information |
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163 TLibraryEventInfo info; |
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164 |
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165 // Set as kill thread event |
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166 info.iEventType = TLibraryEventInfo::EKillThread; |
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167 // Handle the event |
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168 handler->HandleKillThreadEvent( ( DThread* ) a1, info ); |
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169 break; |
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170 } |
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171 default: |
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172 { |
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173 } |
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174 break; |
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175 } |
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176 return ERunNext; |
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177 } |
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178 |
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179 // ----------------------------------------------------------------------------- |
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180 // DAnalyzeToolEventHandler::HandleLibraryEvent() |
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181 // Handles the EEventAddLibrary and EEventRemoveLibrary events. |
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182 // ----------------------------------------------------------------------------- |
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183 // |
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184 void DAnalyzeToolEventHandler::HandleLibraryEvent( DLibrary* aLib, |
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185 DThread* aThread, TLibraryEventInfo& aInfo ) |
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186 { |
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187 LOGSTR1( "ATDD DAnalyzeToolEventHandler::HandleLibraryEvent()" ); |
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188 |
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189 // Aqcuire the handler mutex |
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190 Kern::MutexWait( *iHandlerMutex ); |
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191 |
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192 // Aqcuire the data mutex |
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193 Kern::MutexWait( *iDataMutex ); |
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194 |
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195 TBool addInfo( EFalse ); |
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196 |
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197 // Check the library event type |
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198 if ( aInfo.iEventType == TLibraryEventInfo::ELibraryAdded ) |
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199 { |
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200 if ( aThread != NULL ) |
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201 { |
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202 if ( iProcessId == aThread->iOwningProcess->iId ) |
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203 { |
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204 LOGSTR1( "ATDD > Process id match" ); |
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205 aInfo.iProcessId = aThread->iOwningProcess->iId; |
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206 addInfo = ETrue; |
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207 } |
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208 } |
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209 } |
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210 else if ( aInfo.iEventType == TLibraryEventInfo::ELibraryRemoved ) |
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211 { |
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212 if ( aThread != NULL ) |
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213 { |
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214 aInfo.iProcessId = aThread->iOwningProcess->iId; |
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215 } |
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216 else |
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217 { |
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218 aInfo.iProcessId = 0; |
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219 } |
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220 addInfo = ETrue; |
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221 } |
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222 |
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223 if ( addInfo ) |
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224 { |
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225 // Store lib info |
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226 aLib->AppendName( aInfo.iLibraryName );//lint !e64 !e1514 |
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227 aInfo.iSize = aLib->iCodeSeg->iSize; |
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228 aInfo.iRunAddress = aLib->iCodeSeg->iRunAddress; |
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229 // Store library event info to the array |
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230 iEventArray.Append( aInfo ); |
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231 LOGSTR2( "ATDD > iEventArray.Count() = %d", iEventArray.Count() ); |
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232 |
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233 // if client has subscribed the event it is queued |
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234 if ( iClientThread != NULL ) |
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235 { |
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236 iEventDfc.Enque(); |
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237 } |
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238 } |
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239 |
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240 // Release the data mutex |
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241 Kern::MutexSignal( *iDataMutex ); |
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242 |
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243 // Release the handler mutex |
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244 Kern::MutexSignal( *iHandlerMutex ); |
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245 } |
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246 |
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247 // ----------------------------------------------------------------------------- |
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248 // DAnalyzeToolEventHandler::InformLibraryEvent() |
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249 // Subscribes library event. |
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250 // ----------------------------------------------------------------------------- |
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251 // |
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252 void DAnalyzeToolEventHandler::InformLibraryEvent( TRequestStatus* aStatus, |
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253 TAny* aLibraryInfo, |
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254 TThreadMessage& aMessage ) |
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255 { |
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256 LOGSTR1( "ATDD DAnalyzeToolEventHandler::InformLibraryEvent()" ); |
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257 |
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258 // Aqcuire the data mutex |
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259 Kern::MutexWait( *iDataMutex ); |
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260 |
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261 // Check if request from client which is already pending |
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262 DThread* current = aMessage.Client(); |
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263 |
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264 LOGSTR2( "ATDD > Current Thread ID = %d", current->iId ); |
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265 |
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266 // Ensure that client doesn't subscribe service when there is a pending |
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267 // subscription |
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268 if ( NULL != iClientThread ) |
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269 { |
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270 aMessage.PanicClient( KClientPanic, EPanicRequestPending ); |
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271 } |
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272 else |
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273 { |
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274 // Store the client variable pointers |
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275 iClientThread = current; |
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276 iClientRequestStatus = aStatus; |
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277 iClientInfo = aLibraryInfo; |
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278 } |
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279 |
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280 // Release the data mutex |
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281 Kern::MutexSignal( *iDataMutex ); |
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282 |
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283 // Queue the event since now the client has subscribed it |
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284 iEventDfc.Enque(); |
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285 } |
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286 |
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287 // ----------------------------------------------------------------------------- |
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288 // DAnalyzeToolEventHandler::CancelInformLibraryEvent |
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289 // Cancels subscription of the library event. |
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290 // ----------------------------------------------------------------------------- |
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291 // |
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292 void DAnalyzeToolEventHandler::CancelInformLibraryEvent() |
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293 { |
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294 LOGSTR1( "ATDD DAnalyzeToolEventHandler::CancelInformLibraryEvent()" ); |
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295 |
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296 iEventDfc.Cancel(); |
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297 |
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298 // Aqcuire the data mutex |
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299 Kern::MutexWait( *iDataMutex ); |
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300 |
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301 if ( NULL != iClientThread && iEventArray.Count() > 0 ) |
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302 { |
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303 // Signal the request as complete |
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304 Kern::RequestComplete( iClientThread, |
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305 iClientRequestStatus, |
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306 KErrCancel ); |
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307 |
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308 iClientThread = NULL; |
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309 iClientRequestStatus = NULL; |
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310 iClientInfo = NULL; |
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311 |
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312 // Reset the event array |
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313 iEventArray.Reset(); |
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314 } |
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315 |
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316 // Release the data mutex |
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317 Kern::MutexSignal( *iDataMutex ); |
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318 } |
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319 |
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320 // ----------------------------------------------------------------------------- |
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321 // DAnalyzeToolEventHandler::HandleKillThreadEvent() |
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322 // Handles the EEventKillThread events. |
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323 // ----------------------------------------------------------------------------- |
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324 // |
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325 void DAnalyzeToolEventHandler::HandleKillThreadEvent( DThread* aThread, |
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326 TLibraryEventInfo& aInfo ) |
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327 { |
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328 LOGSTR1( "ATDD DAnalyzeToolEventHandler::HandleKillThreadEvent()" ); |
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329 |
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330 // Aqcuire the handler mutex |
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331 Kern::MutexWait( *iHandlerMutex ); |
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332 |
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333 // Aqcuire the data mutex |
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334 Kern::MutexWait( *iDataMutex ); |
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335 |
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336 aInfo.iProcessId = aThread->iOwningProcess->iId; |
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337 TBool alone( aThread->iOwningProcess->iThreadQ.First()->Alone() ); |
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338 LOGSTR2( "ATDD > Is alone = %d", alone ); |
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339 |
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340 // Check if this our process and is the only thread item. |
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341 if ( aInfo.iProcessId == iProcessId && !alone ) |
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342 { |
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343 if ( aThread ) |
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344 { |
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345 // Set current Thread id |
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346 LOGSTR2( "ATDD > Thread ID = %d", aThread->iId ); |
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347 aInfo.iThreadId = aThread->iId; |
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348 // Append event to array (beginning of the array) |
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349 iEventArray.Insert( aInfo, 0 ); |
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350 |
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351 // if client has subscribed the event it is queued |
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352 if ( iClientThread != NULL ) |
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353 { |
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354 iEventDfc.Enque(); |
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355 } |
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356 } |
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357 } |
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358 |
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359 // Release the data mutex |
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360 Kern::MutexSignal( *iDataMutex ); |
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361 |
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362 // Release the handler mutex |
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363 Kern::MutexSignal( *iHandlerMutex ); |
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364 } |
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365 |
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366 // ----------------------------------------------------------------------------- |
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367 // DAnalyzeToolEventHandler::DoEventComplete() |
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368 // Informs client about the occured event. |
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369 // ----------------------------------------------------------------------------- |
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370 // |
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371 void DAnalyzeToolEventHandler::DoEventComplete() |
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372 { |
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373 LOGSTR1( "ATDD DAnalyzeToolEventHandler::DoEventComplete()" ); |
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374 |
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375 // Aqcuire the handler mutex |
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376 Kern::MutexWait( *iHandlerMutex ); |
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377 |
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378 // Aqcuire the data mutex |
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379 Kern::MutexWait( *iDataMutex ); |
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380 |
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381 if ( NULL != iClientThread && iEventArray.Count() > 0 ) |
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382 { |
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383 TInt ret = Kern::ThreadRawWrite( iClientThread, |
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384 iClientInfo, |
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385 &iEventArray[0], |
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386 sizeof( iEventArray[0] ) ); |
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387 |
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388 LOGSTR2( "ATDD > ThreadRawWrite err = %d", ret ); |
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389 |
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390 // Signal the request as complete |
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391 Kern::RequestComplete( iClientThread, |
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392 iClientRequestStatus, |
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393 ret ); |
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394 |
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395 // Remove first item to array |
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396 iEventArray.Remove( 0 ); |
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397 |
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398 // Compresses the array down to a minimum |
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399 iEventArray.Compress(); |
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400 |
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401 // Ensure that pointers are set to NULL |
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402 iClientThread = NULL; |
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403 iClientRequestStatus = NULL; |
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404 iClientInfo = NULL; |
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405 |
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406 LOGSTR2( "ATDD > iEventArray = %d", iEventArray.Count() ); |
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407 } |
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408 |
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409 // Release the data mutex |
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410 Kern::MutexSignal( *iDataMutex ); |
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411 |
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412 // Release the handler mutex |
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413 Kern::MutexSignal( *iHandlerMutex ); |
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414 } |
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415 |
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416 // ----------------------------------------------------------------------------- |
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417 // DAnalyzeToolEventHandler::EventDfc() |
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418 // Static function for DFC events. |
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419 // ----------------------------------------------------------------------------- |
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420 // |
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421 void DAnalyzeToolEventHandler::EventDfc(TAny* aPtr) |
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422 { |
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423 LOGSTR1( "ATDD DAnalyzeToolEventHandler::EventDfc()" ); |
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424 ( (DAnalyzeToolEventHandler*) aPtr )->DoEventComplete(); |
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425 } |
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426 |
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427 // End of File |
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