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1 /* |
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2 * Copyright (c) 2004 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: Asynchronous operation base class. |
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15 * |
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16 */ |
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17 |
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18 // INCLUDE FILES |
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19 #include "CPEngAsyncOperation.h" |
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20 #include "CPEngNWSessionSlotStorageProxy.h" |
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21 #include "CPEngSessionSlotId.h" |
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22 #include "MPEngAsyncOperationOwner.h" |
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23 #include "CPEngTransactionStatus.h" |
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24 |
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25 |
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26 |
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27 //LOCAL constants |
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28 namespace |
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29 { |
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30 //Panic |
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31 _LIT( KPEngAsyncOpPanic, "PEngAsyncOp" ); |
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32 |
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33 //Panic reasons |
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34 enum TPEngAsyncOpPanicReasons |
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35 { |
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36 EEngAsyncOpHasAlreadyOwner, |
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37 EEngAsyncOpAlreadyInUse |
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38 }; |
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39 |
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40 void PEngAsyncOpPanic( TPEngAsyncOpPanicReasons aPanicReason ) |
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41 { |
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42 User::Panic( KPEngAsyncOpPanic, aPanicReason ); |
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43 } |
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44 } |
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45 |
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46 |
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47 |
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48 // ================= MEMBER FUNCTIONS ======================= |
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49 // ----------------------------------------------------------------------------- |
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50 // CPEngAsyncOperation::CPEngAsyncOperation |
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51 // ----------------------------------------------------------------------------- |
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52 CPEngAsyncOperation::CPEngAsyncOperation( TInt aPriority, |
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53 RPEngManagerClient& aServer ) |
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54 : CActive( aPriority ), |
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55 iCancelling( EFalse ), |
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56 iTransactionServer( aServer ) |
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57 { |
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58 CActiveScheduler::Add( this ); |
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59 } |
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60 |
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61 |
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62 |
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63 // ----------------------------------------------------------------------------- |
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64 // CPEngAsyncOperation::~CPEngAsyncOperation() |
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65 // ----------------------------------------------------------------------------- |
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66 CPEngAsyncOperation::~CPEngAsyncOperation() |
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67 { |
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68 if ( iOperationOwner ) |
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69 { |
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70 iOperationOwner->HandleAsyncOperationDestruction( this ); |
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71 } |
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72 |
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73 delete iTransactionStatus; |
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74 delete iTransactionData; |
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75 |
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76 iTransactionClient.Close(); |
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77 } |
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78 |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // CPEngAsyncOperation::BaseConstructL() |
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82 // ----------------------------------------------------------------------------- |
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83 void CPEngAsyncOperation::BaseConstructL( |
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84 CPEngNWSessionSlotStorageProxy& aUsedSlot ) |
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85 { |
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86 iTransactionStatus = CPEngTransactionStatus::NewL(); |
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87 HBufC8* sessSlotIdPkg = aUsedSlot.BaseId().PackLC(); |
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88 User::LeaveIfError( iTransactionClient.Connect( *sessSlotIdPkg, |
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89 aUsedSlot.AppId(), |
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90 iTransactionServer ) ); |
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91 |
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92 CleanupStack::PopAndDestroy( sessSlotIdPkg ); |
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93 } |
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94 |
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95 |
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96 |
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97 // ----------------------------------------------------------------------------- |
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98 // CPEngAsyncOperation::SetOwner() |
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99 // ----------------------------------------------------------------------------- |
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100 void CPEngAsyncOperation::SetOwner( MPEngAsyncOperationOwner& aOperationOwner ) |
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101 { |
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102 __ASSERT_ALWAYS( !iOperationOwner, |
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103 PEngAsyncOpPanic( EEngAsyncOpHasAlreadyOwner ) ); |
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104 |
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105 iOperationOwner = &aOperationOwner; |
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106 } |
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107 |
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108 |
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109 |
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110 // ----------------------------------------------------------------------------- |
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111 // CPEngAsyncOperation::CancelOpD() |
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112 // ----------------------------------------------------------------------------- |
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113 // |
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114 void CPEngAsyncOperation::CancelOpD() |
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115 { |
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116 if ( iCancelling ) |
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117 { |
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118 //Cancel already running... |
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119 //==>This call is coming from observer callback which |
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120 //was called from DoCancel(). Break the nesting here |
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121 return; |
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122 } |
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123 |
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124 iCancelling = ETrue; |
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125 CActive::Cancel(); |
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126 iCancelling = EFalse; |
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127 |
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128 delete this; |
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129 } |
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130 |
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131 |
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132 |
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133 // ----------------------------------------------------------------------------- |
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134 // CPEngAsyncOperation::InitTransaction() |
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135 // ----------------------------------------------------------------------------- |
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136 // |
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137 void CPEngAsyncOperation::InitTransaction( HBufC16* aTransactionData, |
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138 TInt aTransactionOperation ) |
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139 { |
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140 delete iTransactionData; |
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141 iTransactionData = aTransactionData; |
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142 iTransactionOperation = aTransactionOperation; |
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143 } |
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144 |
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145 |
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146 |
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147 // ----------------------------------------------------------------------------- |
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148 // CPEngAsyncOperation::IssueTransaction() |
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149 // ----------------------------------------------------------------------------- |
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150 // |
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151 void CPEngAsyncOperation::IssueTransaction() |
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152 { |
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153 __ASSERT_ALWAYS( !IsActive(), |
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154 PEngAsyncOpPanic( EEngAsyncOpAlreadyInUse ) ); |
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155 |
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156 TInt err = KErrNone; |
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157 if ( iTransactionData ) |
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158 { |
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159 err = iTransactionClient.UpdateData( iTransactionOperation, |
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160 *iTransactionData, |
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161 iStatus ); |
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162 } |
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163 else |
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164 { |
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165 err = iTransactionClient.UpdateData( iTransactionOperation, |
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166 KNullDesC, |
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167 iStatus ); |
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168 } |
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169 |
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170 |
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171 if ( err == KErrNone ) |
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172 { |
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173 SetActive(); |
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174 } |
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175 |
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176 else |
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177 { |
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178 iStatus = KRequestPending; |
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179 TRequestStatus *pS = &iStatus; |
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180 User::RequestComplete( pS, err ); |
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181 SetActive(); |
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182 } |
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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 |
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188 // ----------------------------------------------------------------------------- |
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189 // CPEngAsyncOperation::DoCancel() |
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190 // ----------------------------------------------------------------------------- |
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191 void CPEngAsyncOperation::DoCancel() |
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192 { |
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193 iTransactionClient.CancelUpdateData(); |
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194 |
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195 iTransactionStatus->Reset(); |
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196 iTransactionStatus->SetStatus( KErrCancel ); |
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197 |
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198 DoHandleOpFailure( *iTransactionStatus, |
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199 iTransactionOperation ); |
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200 |
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201 DoNotifyObserver( *iTransactionStatus, |
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202 iTransactionOperation ); |
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203 } |
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204 |
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205 |
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206 |
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207 |
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208 // ----------------------------------------------------------------------------- |
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209 // CPEngAsyncOperation::RunL() |
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210 // ----------------------------------------------------------------------------- |
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211 void CPEngAsyncOperation::RunL() |
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212 { |
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213 if ( iStatus.Int() < KErrNone ) |
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214 { |
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215 //Operation failed somehow |
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216 User::Leave( iStatus.Int() ); |
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217 } |
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218 |
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219 if ( iStatus.Int() == KErrNone ) |
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220 { |
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221 //operation succesfull but no extra data available |
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222 iTransactionStatus->Reset(); |
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223 iTransactionStatus->SetStatus( KErrNone ); |
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224 } |
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225 |
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226 else |
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227 { |
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228 //Fetch & decode operation results |
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229 HBufC8* resultPkg = HBufC8::NewLC( iStatus.Int() ); |
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230 TPtr8 resultPkgPtr = resultPkg->Des(); |
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231 User::LeaveIfError( iTransactionClient.FetchLastRequestResult( resultPkgPtr ) ); |
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232 |
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233 iTransactionStatus->Reset(); |
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234 iTransactionStatus->UnpackResultsL( *resultPkg ); |
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235 CleanupStack::PopAndDestroy(); // resultPkg |
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236 } |
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237 |
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238 //Let derived class handle operation success |
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239 //-> try to decode data from transaction status |
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240 DoHandleOpSuccessL( *iTransactionStatus, iTransactionOperation ); |
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241 |
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242 |
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243 //And let derived class notify observer about operation completion |
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244 TPEngAsyncOpResult opStatus = DoNotifyObserver( *iTransactionStatus, |
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245 iTransactionOperation ); |
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246 |
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247 //Is transaction completed or should we wait for new round |
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248 if ( opStatus == EPEngAsyncOpCompleted ) |
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249 { |
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250 delete this; |
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251 } |
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252 else |
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253 { |
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254 iTransactionStatus->Reset(); |
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255 } |
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256 } |
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257 |
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258 |
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259 // ----------------------------------------------------------------------------- |
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260 // CPEngAsyncOperation::RunError() |
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261 // ----------------------------------------------------------------------------- |
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262 TInt CPEngAsyncOperation::RunError( TInt aError ) |
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263 { |
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264 iTransactionStatus->Reset(); |
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265 iTransactionStatus->SetStatus( aError ); |
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266 |
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267 DoHandleOpFailure( *iTransactionStatus, |
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268 iTransactionOperation ); |
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269 |
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270 |
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271 TPEngAsyncOpResult opStatus = DoNotifyObserver( *iTransactionStatus, |
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272 iTransactionOperation ); |
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273 |
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274 if ( opStatus == EPEngAsyncOpCompleted ) |
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275 { |
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276 delete this; |
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277 } |
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278 |
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279 return KErrNone; |
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280 } |
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281 |
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282 |
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283 // End of file |