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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: CSensrvChannelChangeHandler implementation |
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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 "sensrvchannelchangehandler.h" |
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20 #include "sensrvchannelchangehandlerobserver.h" |
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21 #include "sensrvtrace.h" |
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22 |
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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 // C++ constructor |
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28 // --------------------------------------------------------------------------- |
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29 // |
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30 CSensrvChannelChangeHandler::CSensrvChannelChangeHandler( RSensrvClient& aSensrvClient ) |
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31 : CActive( EPriorityStandard ), |
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32 iSensrvClient( aSensrvClient ) |
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33 { |
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34 CActiveScheduler::Add( this ); |
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35 } |
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36 |
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37 |
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38 // --------------------------------------------------------------------------- |
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39 // 2-phase constructor |
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40 // --------------------------------------------------------------------------- |
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41 // |
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42 CSensrvChannelChangeHandler* CSensrvChannelChangeHandler::NewL( RSensrvClient& aSensrvClient ) |
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43 { |
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44 CSensrvChannelChangeHandler* self = CSensrvChannelChangeHandler::NewLC( aSensrvClient ); |
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45 CleanupStack::Pop( self ); |
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46 return self; |
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47 } |
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48 |
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49 |
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50 // --------------------------------------------------------------------------- |
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51 // 2-phase constructor |
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52 // --------------------------------------------------------------------------- |
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53 // |
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54 CSensrvChannelChangeHandler* CSensrvChannelChangeHandler::NewLC( RSensrvClient& aSensrvClient ) |
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55 { |
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56 CSensrvChannelChangeHandler* self = new( ELeave ) CSensrvChannelChangeHandler( aSensrvClient ); |
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57 CleanupStack::PushL( self ); |
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58 return self; |
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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 // Destructor |
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64 // --------------------------------------------------------------------------- |
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65 // |
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66 CSensrvChannelChangeHandler::~CSensrvChannelChangeHandler() |
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67 { |
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68 if( IsActive() ) |
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69 { |
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70 Cancel(); |
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71 } |
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72 } |
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73 |
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74 // --------------------------------------------------------------------------- |
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75 // From class CActive |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 void CSensrvChannelChangeHandler::DoCancel() |
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79 { |
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80 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::DoCancel()" ) ) ); |
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81 |
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82 // Stop Listening |
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83 TInt ignore = iSensrvClient.SendReceiveSync( ESensrvSrvReqStopChannelChangeListening, |
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84 TIpcArgs() ); |
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85 |
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86 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::DoCancel - return void" ) ) ); |
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87 } |
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88 |
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89 // --------------------------------------------------------------------------- |
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90 // From class CActive |
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91 // --------------------------------------------------------------------------- |
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92 // |
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93 void CSensrvChannelChangeHandler::RunL() |
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94 { |
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95 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::RunL(iStatus: %d" ), iStatus.Int() ) ); |
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96 |
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97 |
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98 Deque(); |
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99 CActiveScheduler::Add(this); |
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100 if( iStatus.Int() == KErrNone ) |
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101 { |
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102 if( iErrorCount > 0 ) |
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103 { |
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104 iErrorCount = 0; |
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105 } |
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106 |
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107 // Note: Callback is done intentionally before resending async request, |
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108 // so that we don't need duplicate buffer like in data reading. |
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109 // It shouldn't have noticeable effect on performance in real use cases, |
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110 iObserver->ChannelChangeDetected( iChannelInfoPckgBuf(), iChangeTypePckgBuf() ); |
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111 CreateAndSendRequest(); |
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112 } |
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113 else |
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114 { |
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115 if( iErrorCount == 0 ) |
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116 { |
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117 iErrorCount++; |
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118 CreateAndSendRequest(); |
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119 |
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120 // Send minor error |
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121 iObserver->ChannelDetectionError( ESensrvErrorSeverityMinor ); |
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122 } |
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123 else |
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124 { |
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125 // send fatal error |
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126 iObserver->ChannelDetectionError( ESensrvErrorSeverityFatal ); |
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127 } |
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128 } |
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129 |
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130 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::RunL - return" ) ) ); |
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131 } |
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132 |
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133 // --------------------------------------------------------------------------- |
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134 // CSensrvChannelChangeHandler::RunError |
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135 // --------------------------------------------------------------------------- |
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136 // |
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137 TInt CSensrvChannelChangeHandler::RunError( TInt /*aError*/ ) |
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138 { |
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139 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::RunError" ) ) ); |
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140 // This should never get hit, since there is nothing which can leave in RunL. |
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141 return KErrNone; |
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142 } |
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143 |
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144 // --------------------------------------------------------------------------- |
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145 // CSensrvChannelChangeHandler::StartListening |
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146 // --------------------------------------------------------------------------- |
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147 // |
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148 void CSensrvChannelChangeHandler::StartListening( MSensrvChannelChangeHandlerObserver* aChannelChangeObserver, |
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149 const TSensrvChannelInfo& aSearchParameters ) |
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150 { |
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151 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::StartListening - Start" ) ) ); |
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152 if( !IsActive() ) |
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153 { |
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154 iObserver = aChannelChangeObserver; |
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155 iSearchParameterBuf = aSearchParameters; |
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156 |
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157 CreateAndSendRequest(); |
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158 } |
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159 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::StartListening - Return" ) ) ); |
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160 } |
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161 |
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162 // --------------------------------------------------------------------------- |
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163 // CSensrvChannelChangeHandler::CreateAndSendRequest |
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164 // --------------------------------------------------------------------------- |
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165 // |
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166 void CSensrvChannelChangeHandler::CreateAndSendRequest() |
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167 { |
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168 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::CreateAndSendRequestL()" ) ) ); |
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169 |
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170 iSensrvClient.SendReceiveAsync( ESensrvSrvReqAsyncChannelChangeNotification, |
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171 TIpcArgs( &iChannelInfoPckgBuf, &iChangeTypePckgBuf, &iSearchParameterBuf ), |
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172 iStatus ); |
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173 |
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174 SetActive(); |
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175 |
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176 COMPONENT_TRACE( ( _L( "Sensrv Client - CSensrvChannelChangeHandler::CreateAndSendRequestL - Return" ) ) ); |
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177 } |
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178 |