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1 /* |
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2 * Copyright (c) 2007 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: Active object to split up long running db tasks |
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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 <e32base.h> |
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21 #include <mpxlog.h> |
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22 #include "mpxdbactivetask.h" |
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23 |
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24 // ============================ MEMBER FUNCTIONS ============================= |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // Constructor |
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28 // --------------------------------------------------------------------------- |
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29 // |
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30 CMPXDbActiveTask::CMPXDbActiveTask( MMPXDbActiveTaskObserver& aObserver ) : |
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31 CActive( CActive::EPriorityStandard ), |
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32 iObserver( aObserver ) |
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33 { |
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34 MPX_FUNC("CMPXDbActiveTask::CMPXDbActiveTask"); |
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35 CActiveScheduler::Add( this ); |
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36 } |
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37 |
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38 // --------------------------------------------------------------------------- |
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39 // 2nd-phase constructor |
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40 // --------------------------------------------------------------------------- |
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41 // |
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42 void CMPXDbActiveTask::ConstructL() |
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43 { |
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44 MPX_FUNC("CMPXDbActiveTask::ConstructL"); |
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45 } |
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46 |
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47 // --------------------------------------------------------------------------- |
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48 // Two-Phase Constructor |
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49 // --------------------------------------------------------------------------- |
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50 // |
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51 EXPORT_C CMPXDbActiveTask* CMPXDbActiveTask::NewL( MMPXDbActiveTaskObserver& aObserver ) |
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52 { |
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53 MPX_FUNC("CMPXDbActiveTask::NewL"); |
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54 |
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55 CMPXDbActiveTask* self = new(ELeave) CMPXDbActiveTask( aObserver); |
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56 CleanupStack::PushL( self ); |
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57 self->ConstructL(); |
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58 CleanupStack::Pop( self ); |
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59 return self; |
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60 } |
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61 |
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62 // --------------------------------------------------------------------------- |
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63 // Destructor |
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64 // --------------------------------------------------------------------------- |
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65 // |
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66 EXPORT_C CMPXDbActiveTask::~CMPXDbActiveTask() |
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67 { |
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68 MPX_FUNC("CMPXDbActiveTask::~CMPXDbActiveTask"); |
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69 |
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70 Cancel(); |
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71 delete iChangeMessages; |
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72 delete iCurCommand; |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Start the operation |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 EXPORT_C void CMPXDbActiveTask::StartL( TMPXCommandId aTask, const CMPXCommand& aCommand ) |
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80 { |
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81 delete iCurCommand; |
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82 iCurCommand = NULL; |
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83 iCurCommand = CMPXMedia::NewL( aCommand ); |
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84 iCurTask = aTask; |
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85 iCurStep = 0; |
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86 delete iChangeMessages; |
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87 iChangeMessages = NULL; |
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88 iChangeMessages = CMPXMessageArray::NewL(); |
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89 iCurVisibleChange = ENotVisibile; |
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90 |
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91 // Start the AO |
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92 iStatus = KRequestPending; |
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93 SetActive(); |
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94 TRequestStatus* status = &iStatus; |
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95 User::RequestComplete( status, KErrNone ); |
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96 } |
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97 |
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98 // --------------------------------------------------------------------------- |
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99 // Get the current step |
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100 // --------------------------------------------------------------------------- |
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101 // |
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102 EXPORT_C TInt CMPXDbActiveTask::GetStep() |
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103 { |
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104 MPX_FUNC("CMPXDbActiveTask::GetStep"); |
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105 return iCurStep; |
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106 } |
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107 |
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108 // --------------------------------------------------------------------------- |
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109 // Get the current task |
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110 // --------------------------------------------------------------------------- |
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111 // |
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112 EXPORT_C TMPXCommandId CMPXDbActiveTask::GetTask() |
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113 { |
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114 MPX_FUNC("CMPXDbActiveTask::GetTask"); |
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115 return iCurTask; |
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116 } |
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117 |
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118 // --------------------------------------------------------------------------- |
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119 // Get the current media |
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120 // --------------------------------------------------------------------------- |
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121 // |
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122 EXPORT_C CMPXMedia& CMPXDbActiveTask::GetCommand() |
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123 { |
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124 MPX_FUNC("CMPXDbActiveTask::GetCommand"); |
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125 return *iCurCommand; |
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126 } |
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127 |
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128 // --------------------------------------------------------------------------- |
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129 // Get the current change messages |
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130 // --------------------------------------------------------------------------- |
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131 // |
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132 EXPORT_C CMPXMessageArray& CMPXDbActiveTask::GetChangeMessages() |
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133 { |
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134 MPX_FUNC("CMPXDbActiveTask::GetChangeMessages"); |
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135 return *iChangeMessages; |
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136 } |
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137 |
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138 // --------------------------------------------------------------------------- |
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139 // Set the visible change flag |
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140 // --------------------------------------------------------------------------- |
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141 // |
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142 EXPORT_C void CMPXDbActiveTask::SetVisibleChange( TChangeVisibility aChange ) |
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143 { |
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144 MPX_FUNC("CMPXDbActiveTask::SetVisibleChange"); |
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145 iCurVisibleChange = aChange; |
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146 } |
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147 |
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148 // --------------------------------------------------------------------------- |
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149 // Get the visible change flag |
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150 // --------------------------------------------------------------------------- |
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151 // |
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152 EXPORT_C CMPXDbActiveTask::TChangeVisibility CMPXDbActiveTask::GetVisibleChange() |
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153 { |
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154 MPX_FUNC("CMPXDbActiveTask::GetVisibleChange"); |
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155 return iCurVisibleChange; |
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156 } |
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157 |
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158 // --------------------------------------------------------------------------- |
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159 // From CActive |
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160 // --------------------------------------------------------------------------- |
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161 // |
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162 EXPORT_C void CMPXDbActiveTask::RunL() |
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163 { |
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164 MPX_FUNC("CMPXDbActiveTask::RunL"); |
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165 |
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166 // ETrue is done, EFalse is more to do |
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167 // |
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168 if( iObserver.HandleStepL() ) |
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169 { |
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170 iObserver.HandleOperationCompleted( KErrNone ); |
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171 delete iCurCommand; |
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172 iCurCommand = NULL; |
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173 delete iChangeMessages; |
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174 iChangeMessages = NULL; |
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175 } |
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176 else |
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177 { |
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178 ++iCurStep; |
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179 iStatus = KRequestPending; |
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180 SetActive(); |
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181 TRequestStatus* status = &iStatus; |
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182 User::RequestComplete( status, KErrNone ); |
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183 } |
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184 } |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // From CActive |
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188 // --------------------------------------------------------------------------- |
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189 // |
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190 EXPORT_C void CMPXDbActiveTask::DoCancel() |
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191 { |
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192 MPX_FUNC("CMPXDbActiveTask::DoCancel"); |
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193 |
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194 // Callback and cleanup |
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195 iObserver.HandleOperationCompleted( KErrCancel ); |
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196 delete iCurCommand; |
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197 iCurCommand = NULL; |
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198 iChangeMessages->Reset(); |
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199 } |
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200 |
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201 // --------------------------------------------------------------------------- |
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202 // From CActive |
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203 // --------------------------------------------------------------------------- |
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204 // |
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205 EXPORT_C TInt CMPXDbActiveTask::RunError( TInt aError ) |
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206 { |
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207 MPX_FUNC("CMPXDbActiveTask::RunError"); |
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208 |
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209 // Callback and cleanup |
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210 iObserver.HandleOperationCompleted( aError ); |
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211 delete iCurCommand; |
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212 iCurCommand = NULL; |
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213 iChangeMessages->Reset(); |
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214 |
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215 return KErrNone; |
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216 } |
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217 |
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218 // END OF FILE |