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1 /* |
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2 * Copyright (c) 2004,2006 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: Implements the CAOConnectionImpl class |
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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 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS |
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21 #include <es_enum_partner.h> |
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22 #endif |
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23 #include <es_enum.h> |
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24 #include <etelpckt.h> |
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25 #include <in_sock.h> |
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26 |
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27 #include "caoconnectionimpl.h" |
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28 #include "maosettings.h" |
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29 #include "logger.h" |
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30 #include "maoconnectionobserver.h" |
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31 |
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32 // UNNAMED NAMESPACE FOR LOCAL DEFINITIONS |
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33 namespace |
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34 { |
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35 // CONSTANTS |
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36 _LIT( KPanicCat, "ConnectionImpl" ); |
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37 |
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38 // Default value that indicates that we do not want to prompt user for IAP |
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39 const TCommDbDialogPref KDlgPreference = ECommDbDialogPrefDoNotPrompt; |
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40 |
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41 // DATA TYPES |
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42 enum TPanicCode |
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43 { |
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44 ENone, |
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45 EConnectionAlreadyActive, |
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46 ENotActive, |
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47 EInvalidState, |
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48 EAlreadyActive, |
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49 EReuqestNotPending |
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50 }; |
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51 |
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52 // LOCAL FUNCTIONS |
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53 LOCAL_C void Panic( TPanicCode aCode ) |
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54 { |
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55 User::Panic( KPanicCat, aCode ); |
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56 } |
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57 } |
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58 |
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59 // METHODS |
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60 |
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61 // --------------------------------------------------------------------------- |
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62 // Two-phased constructor. |
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63 // --------------------------------------------------------------------------- |
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64 // |
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65 CAOConnectionImpl* CAOConnectionImpl::NewL( |
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66 MAOConnectionObserver& aObserver, |
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67 MAOSettings& aSettings, |
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68 RSocketServ* aSocketServ ) |
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69 { |
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70 LOG_1( _L("CAOConnectionImpl::NewL") ); |
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71 |
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72 CAOConnectionImpl* self = new( ELeave ) CAOConnectionImpl( |
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73 aObserver, |
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74 aSettings, |
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75 aSocketServ ); |
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76 |
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77 CleanupStack::PushL( self ); |
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78 self->ConstructL(); |
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79 CleanupStack::Pop( self ); |
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80 |
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81 return self; |
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82 } |
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83 |
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84 // --------------------------------------------------------------------------- |
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85 // Destructor |
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86 // --------------------------------------------------------------------------- |
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87 // |
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88 CAOConnectionImpl::~CAOConnectionImpl() |
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89 { |
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90 LOG_1( _L("CAOConnectionImpl::~CAOConnectionImpl") ); |
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91 |
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92 Cancel(); |
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93 |
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94 delete iCommsDatabase; |
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95 iConnection.Close(); |
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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 // CAOConnectionImpl::ActivateConnection |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 void CAOConnectionImpl::ActivateConnection() |
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104 { |
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105 LOG_1( _L("CAOConnectionImpl::ActivateConnection") ); |
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106 |
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107 __ASSERT_DEBUG( !IsActive() && iState == EDisconnected, |
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108 Panic( EConnectionAlreadyActive ) ); |
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109 |
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110 // Change state to EOpeningLink |
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111 ChangeState( EOpeningLink ); |
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112 |
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113 // Check IAP |
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114 TUint iap = iSettings.AccessPointId(); |
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115 if ( IsValidIAP( iap ) ) |
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116 { |
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117 // Check that we really have RConnection handle opened |
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118 TInt err = KErrNone; |
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119 if( !iConnection.SubSessionHandle() ) |
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120 { |
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121 // Socket serv is closed only in destructor |
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122 err = iConnection.Open( *iSocketServ ); |
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123 } |
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124 |
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125 if( err == KErrNone ) |
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126 { |
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127 // Set acces point settings |
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128 iAccessPointSettings.SetIapId( iap ); |
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129 iAccessPointSettings.SetDialogPreference( KDlgPreference ); |
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130 |
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131 // Start connection |
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132 iConnection.Start( iAccessPointSettings, iStatus ); |
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133 SetActive(); |
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134 } |
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135 else |
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136 { |
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137 ActivateSelf( KErrNotSupported ); |
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138 } |
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139 } |
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140 else |
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141 { |
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142 // Something is wrong. Complete self with error KErrNotSupported -> |
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143 // leads to permanent failure. |
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144 ActivateSelf( KErrNotSupported ); |
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145 } |
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146 } |
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147 |
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148 // --------------------------------------------------------------------------- |
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149 // CAOConnectionImpl::CancelConnection |
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150 // --------------------------------------------------------------------------- |
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151 // |
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152 void CAOConnectionImpl::CancelConnection() |
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153 { |
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154 LOG_1( _L("CAOConnectionImpl::CancelConnection") ); |
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155 Cancel(); |
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156 LOG_2( _L("CAOConnectionImpl::CancelConnection: Cur. state: %d"), |
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157 iState ); |
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158 } |
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159 |
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160 // --------------------------------------------------------------------------- |
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161 // CAOConnectionImpl::IsConnectedToDefaultIAP |
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162 // --------------------------------------------------------------------------- |
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163 // |
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164 TBool CAOConnectionImpl::IsConnectedToDefaultIAP() |
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165 { |
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166 LOG_1( _L("CAOConnectionImpl::IsConnectedToDefaultIAP") ); |
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167 |
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168 // Check if we have PDP context open to default IAP |
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169 TBool connected = EFalse; |
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170 TUint connectionCount = 0; |
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171 TInt err = iConnection.EnumerateConnections( connectionCount ); |
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172 if ( err == KErrNone ) |
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173 { |
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174 TPckgBuf<TConnectionInfoV2> connectionInfo; |
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175 for ( TInt i = 0; i < connectionCount; i++ ) |
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176 { |
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177 err = iConnection.GetConnectionInfo( i + 1, connectionInfo ); |
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178 if ( err == KErrNone ) |
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179 { |
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180 if ( connectionInfo().iIapId == iSettings.AccessPointId() ) |
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181 { |
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182 LOG_1( _L("CAOConnectionImpl::IsConnectedToDefaultIAP: \ |
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183 Connected to default IAP") ); |
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184 connected = ETrue; |
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185 break; |
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186 } |
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187 } |
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188 } |
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189 } |
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190 |
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191 LOG_2( _L("CAOConnectionImpl::IsConnectedToDefaultIAP: Connected: %d "), |
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192 connected ); |
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193 |
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194 return connected; |
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195 } |
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196 |
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197 // --------------------------------------------------------------------------- |
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198 // CAOConnectionImpl::NumberOfConnections |
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199 // --------------------------------------------------------------------------- |
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200 // |
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201 TInt CAOConnectionImpl::NumberOfConnections() |
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202 { |
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203 LOG_1( _L("CAOConnectionImpl::NumberOfConnections") ); |
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204 |
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205 TUint connectionCount = 0; |
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206 TInt err = iConnection.EnumerateConnections( connectionCount ); |
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207 if( err != KErrNone ) |
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208 { |
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209 connectionCount = 0; |
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210 } |
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211 LOG_2( _L("> Number of connections: %d"), connectionCount ); |
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212 |
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213 return static_cast<TInt>( connectionCount ); |
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214 } |
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215 |
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216 // --------------------------------------------------------------------------- |
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217 // CAOConnectionImpl::CloseConnection |
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218 // --------------------------------------------------------------------------- |
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219 // |
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220 void CAOConnectionImpl::CloseConnection() |
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221 { |
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222 LOG_1( _L("CAOConnectionImpl::CloseConnection") ); |
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223 |
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224 if ( iState == EListeningAccessPoint ) |
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225 { |
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226 if ( IsActive() ) |
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227 { |
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228 iConnection.CancelProgressNotification(); |
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229 } |
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230 |
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231 iConnection.Close(); |
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232 |
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233 // To really close: re-open |
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234 TInt err = iConnection.Open( *iSocketServ ); |
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235 LOG_2( _L("> Re-opened connection handle: Err: %d"), err ); |
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236 |
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237 ChangeState( EDisconnected ); |
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238 } |
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239 } |
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240 |
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241 // --------------------------------------------------------------------------- |
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242 // Constructor |
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243 // --------------------------------------------------------------------------- |
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244 // |
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245 CAOConnectionImpl::CAOConnectionImpl( |
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246 MAOConnectionObserver& aObserver, |
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247 MAOSettings& aSettings, |
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248 RSocketServ* aSocketServ ): |
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249 CActive( CActive::EPriorityStandard ), |
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250 iObserver( aObserver ), |
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251 iSettings( aSettings ), |
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252 iSocketServ( aSocketServ ), |
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253 iState( EDisconnected ) |
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254 { |
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255 LOG_1( _L("CAOConnectionImpl::CAOConnectionImpl") ); |
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256 |
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257 CActiveScheduler::Add( this ); |
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258 } |
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259 |
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260 // --------------------------------------------------------------------------- |
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261 // Symbian 2nd phase constructor |
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262 // --------------------------------------------------------------------------- |
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263 // |
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264 void CAOConnectionImpl::ConstructL() |
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265 { |
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266 LOG_1( _L("CAOConnectionImpl::ConstructL") ); |
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267 |
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268 User::LeaveIfError( iConnection.Open( *iSocketServ, KAfInet ) ); |
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269 iCommsDatabase = CCommsDatabase::NewL( EDatabaseTypeUnspecified ); |
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270 } |
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271 |
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272 // --------------------------------------------------------------------------- |
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273 // CAOConnectionImpl::IsValidIAP |
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274 // --------------------------------------------------------------------------- |
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275 // |
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276 TBool CAOConnectionImpl::IsValidIAP( TUint32 aId ) const |
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277 { |
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278 LOG_1( _L("CAOConnectionImpl::IsValidIAP") ); |
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279 |
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280 CCommsDbTableView* table = NULL; |
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281 |
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282 // E32USER Cbase panic 79 is raised if OpenViewMatchingUintLC does not |
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283 // leave inside trap. Therefore pop table out from cleanup stack before |
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284 // exiting from TRAP harness. |
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285 TRAPD( error, table = iCommsDatabase->OpenViewMatchingUintLC( |
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286 TPtrC( IAP ), |
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287 TPtrC( COMMDB_ID ), |
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288 aId ); |
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289 CleanupStack::Pop( table ) ); |
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290 |
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291 if ( error == KErrNone ) |
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292 { |
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293 error = table->GotoFirstRecord(); |
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294 } |
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295 delete table; |
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296 |
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297 return error == KErrNone; |
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298 } |
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299 |
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300 // --------------------------------------------------------------------------- |
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301 // CAOConnectionImpl::CompleteSelf |
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302 // --------------------------------------------------------------------------- |
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303 // |
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304 void CAOConnectionImpl::CompleteSelf( TRequestStatus& aStatus, TInt aReason ) |
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305 { |
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306 LOG_1( _L("CAOConnectionImpl::CompleteSelf") ); |
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307 |
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308 __ASSERT_DEBUG( IsActive(), Panic( ENotActive ) ); |
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309 __ASSERT_DEBUG( aStatus == KRequestPending, Panic( EReuqestNotPending ) ); |
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310 |
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311 TRequestStatus* status = &aStatus; |
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312 User::RequestComplete( status, aReason ); |
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313 } |
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314 |
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315 // --------------------------------------------------------------------------- |
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316 // CAOConnectionImpl::HandleOpeningLinkL |
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317 // --------------------------------------------------------------------------- |
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318 // |
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319 void CAOConnectionImpl::HandleOpeningLinkL( TInt aStatus ) |
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320 { |
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321 LOG_1( _L("CAOConnectionImpl::HandleOpeningLinkL") ); |
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322 |
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323 if ( aStatus == KErrNone ) |
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324 { |
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325 // First check current status |
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326 TInt err = iConnection.Progress( iProgressBuf() ); |
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327 if ( err == KErrNone && iProgressBuf().iError == KErrNone ) |
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328 { |
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329 IssueProgressNotification(); |
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330 if ( iProgressBuf().iStage == KLinkLayerOpen ) |
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331 { |
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332 // Link open |
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333 ChangeState( EListeningAccessPoint ); |
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334 iObserver.HandlePDPContextActivatedL(); |
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335 } |
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336 } |
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337 else |
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338 { |
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339 BrodcastActivationFailedError( err ); |
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340 } |
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341 } |
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342 else |
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343 { |
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344 BrodcastActivationFailedError( aStatus ); |
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345 } |
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346 } |
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347 |
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348 // --------------------------------------------------------------------------- |
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349 // CAOConnectionImpl::HandleListeningAccessPointL |
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350 // --------------------------------------------------------------------------- |
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351 // |
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352 void CAOConnectionImpl::HandleListeningAccessPointL( TInt aStatus ) |
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353 { |
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354 LOG_1( _L("CAOConnectionImpl::HandleListeningAccessPointL") ); |
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355 LOG_2( _L("> aStatus: %d"), aStatus ); |
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356 LOG_2( _L("> iProgressBuf().iError: %d"), iProgressBuf().iError ); |
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357 |
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358 if ( aStatus == KErrNone && iProgressBuf().iError == KErrNone ) |
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359 { |
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360 // Check connection status |
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361 switch ( iProgressBuf().iStage ) |
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362 { |
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363 case KLinkLayerClosed: |
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364 { |
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365 LOG_1( _L("> Link closed") ); |
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366 |
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367 // Connection disconnected |
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368 // Stop connection just in case |
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369 StopConnection(); |
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370 |
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371 // Notify and change state |
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372 BrodcastDisconnectedError( KErrDisconnected ); |
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373 break; |
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374 } |
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375 case KLinkLayerOpen: |
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376 { |
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377 LOG_1( _L("> Link open") ); |
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378 |
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379 // everything ok -> continue listening |
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380 IssueProgressNotification(); |
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381 break; |
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382 } |
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383 case KDataTransferTemporarilyBlocked: |
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384 { |
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385 LOG_1( _L("> Link temporarily blocked") ); |
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386 |
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387 // Data transfer temporarily blocked |
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388 // Continue listening and notify |
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389 IssueProgressNotification(); |
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390 iObserver.HandlePDPContextTemporarilyBlockedL(); |
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391 break; |
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392 } |
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393 case KConnectionClosed: |
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394 { |
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395 LOG_1( _L("> Connection closed") ); |
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396 |
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397 // Notify and change state |
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398 BrodcastDisconnectedError( KErrDisconnected ); |
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399 break; |
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400 } |
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401 default: |
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402 { |
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403 LOG_2( _L("iProgressBuf().iStage: %d"), |
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404 iProgressBuf().iStage ); |
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405 |
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406 // Just continue listening |
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407 IssueProgressNotification(); |
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408 break; |
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409 } |
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410 } |
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411 } |
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412 else |
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413 { |
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414 // Handle error |
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415 BrodcastDisconnectedError( aStatus ); |
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416 } |
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417 } |
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418 |
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419 // --------------------------------------------------------------------------- |
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420 // CAOConnectionImpl::ChangeState |
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421 // --------------------------------------------------------------------------- |
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422 // |
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423 void CAOConnectionImpl::ChangeState( TInternalState aNewState ) |
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424 { |
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425 #ifdef LOGGING_ENABLED |
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426 TInternalState old = iState; |
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427 iState = aNewState; |
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428 LOG_3( _L("CAOConnectionImpl::ChangeState >> Changing state %d -> %d"), |
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429 old, iState ); |
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430 #else |
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431 iState = aNewState; |
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432 #endif // LOGGING_ENABLED |
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433 } |
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434 |
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435 // --------------------------------------------------------------------------- |
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436 // CAOConnectionImpl::IssueProgressNotification |
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437 // --------------------------------------------------------------------------- |
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438 // |
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439 void CAOConnectionImpl::IssueProgressNotification() |
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440 { |
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441 LOG_1( _L("CAOConnectionImpl::IssueProgressNotification") ); |
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442 |
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443 __ASSERT_DEBUG( !IsActive(), Panic( EConnectionAlreadyActive ) ); |
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444 |
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445 iConnection.ProgressNotification( iProgressBuf, iStatus ); |
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446 SetActive(); |
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447 } |
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448 |
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449 // --------------------------------------------------------------------------- |
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450 // CAOConnectionImpl::BrodcastDisconnectedError |
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451 // --------------------------------------------------------------------------- |
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452 // |
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453 #ifdef LOGGING_ENABLED |
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454 void CAOConnectionImpl::BrodcastDisconnectedError( TInt aError ) |
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455 #else |
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456 void CAOConnectionImpl::BrodcastDisconnectedError( TInt /*aError*/ ) |
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457 #endif |
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458 { |
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459 LOG_2( _L("CAOConnectionImpl::BrodcastDisconnectedError: aError: %d"), |
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460 aError ); |
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461 |
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462 ChangeState( EDisconnected ); |
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463 TRAP_IGNORE( iObserver.HandlePDPContextDisconnectedL( |
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464 MAOConnectionManager::EDisconnected ) ); |
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465 } |
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466 |
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467 // --------------------------------------------------------------------------- |
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468 // CAOConnectionImpl::BrodcastActivationFailedError |
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469 // --------------------------------------------------------------------------- |
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470 // |
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471 void CAOConnectionImpl::BrodcastActivationFailedError( TInt aError ) |
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472 { |
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473 LOG_2( _L("CAOConnectionImpl::BrodcastActivationFailedError: aError: %d"), |
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474 aError ); |
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475 |
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476 ChangeState( EDisconnected ); |
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477 TRAP_IGNORE( iObserver.HandlePDPContextActivationFailedL( |
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478 FailureReason( aError ) ) ); |
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479 } |
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480 |
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481 // --------------------------------------------------------------------------- |
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482 // CAOConnectionImpl::FailureReason |
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483 // --------------------------------------------------------------------------- |
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484 // |
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485 MAOConnectionManager::TFailureReason CAOConnectionImpl::FailureReason( |
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486 TInt aError ) |
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487 { |
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488 LOG_2( _L("CAOConnectionImpl::FailureReason: aError: %d"), aError ); |
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489 |
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490 // Determine error cause |
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491 MAOConnectionManager::TFailureReason reason = |
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492 MAOConnectionManager::EPermanent; |
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493 switch ( aError ) |
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494 { |
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495 // Temporary cause |
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496 case KErrGprsUserAuthenticationFailure: |
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497 case KErrGprsActivationRejectedByGGSN: |
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498 case KErrGprsActivationRejected: |
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499 case KErrGprsServiceOptionTemporarilyOutOfOrder: |
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500 case KErrConnectionTerminated: |
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501 { |
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502 LOG_1( _L("> Temporary failure") ); |
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503 reason = MAOConnectionManager::ETemporary; |
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504 break; |
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505 } |
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506 // Permanent cause |
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507 default: |
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508 { |
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509 LOG_1( _L("> Permanent failure") ); |
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510 reason = MAOConnectionManager::EPermanent; |
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511 break; |
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512 } |
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513 } |
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514 |
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515 LOG_2( _L("CAOConnectionImpl::FailureReason: Reason: %d"), reason ); |
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516 |
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517 return reason; |
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518 } |
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519 |
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520 // --------------------------------------------------------------------------- |
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521 // CAOConnectionImpl::ActivateSelf |
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522 // --------------------------------------------------------------------------- |
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523 // |
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524 void CAOConnectionImpl::ActivateSelf( TInt aReason ) |
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525 { |
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526 LOG_2( _L("CAOConnectionImpl::ActivateSelf: aReason: %d"), aReason ); |
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527 |
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528 __ASSERT_DEBUG( !IsActive(), Panic( EAlreadyActive ) ); |
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529 |
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530 iStatus = KRequestPending; |
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531 SetActive(); |
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532 CompleteSelf( iStatus, aReason ); |
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533 } |
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534 |
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535 // --------------------------------------------------------------------------- |
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536 // CAOConnectionImpl::StopConnection |
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537 // --------------------------------------------------------------------------- |
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538 // |
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539 void CAOConnectionImpl::StopConnection() |
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540 { |
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541 LOG_1( _L("CAOConnectionImpl::StopConnection") ); |
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542 |
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543 TInt err = iConnection.Stop( RConnection::EStopAuthoritative ); |
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544 LOG_2( _L("> Stopped connection: Err: %d"), err ); |
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545 |
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546 iConnection.Close(); |
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547 LOG_1( _L("> Closed connection handle") ); |
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548 |
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549 err = iConnection.Open( *iSocketServ ); |
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550 LOG_2( _L("> Re-opened connection handle: Err: %d"), err ); |
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551 } |
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552 |
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553 |
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554 |
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555 // --------------------------------------------------------------------------- |
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556 // CAOConnectionImpl::RunL |
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557 // --------------------------------------------------------------------------- |
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558 // |
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559 void CAOConnectionImpl::RunL() |
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560 { |
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561 LOG_2( _L("CAOConnectionImpl::RunL: iStatus: %d"), iStatus.Int() ); |
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562 |
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563 TInt status = iStatus.Int(); |
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564 switch ( iState ) |
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565 { |
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566 case EDisconnected: |
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567 { |
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568 // nothing to do |
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569 break; |
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570 } |
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571 case EOpeningLink: |
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572 { |
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573 HandleOpeningLinkL( status ); |
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574 break; |
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575 } |
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576 case EListeningAccessPoint: |
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577 { |
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578 HandleListeningAccessPointL( status ); |
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579 break; |
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580 } |
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581 default: |
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582 { |
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583 LOG_1( _L("CAOConnectionImpl::RunL >> Invalid state!") ); |
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584 Panic( EInvalidState ); |
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585 break; |
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586 } |
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587 } |
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588 } |
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589 |
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590 // --------------------------------------------------------------------------- |
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591 // CAOConnectionImpl::DoCancel |
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592 // --------------------------------------------------------------------------- |
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593 // |
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594 void CAOConnectionImpl::DoCancel() |
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595 { |
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596 LOG_1( _L("CAOConnectionImpl::DoCancel") ); |
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597 |
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598 TInternalState currentState = iState; |
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599 ChangeState( EDisconnected ); |
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600 switch ( currentState ) |
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601 { |
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602 case EDisconnected: |
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603 { |
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604 // Nothing to do |
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605 break; |
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606 } |
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607 case EOpeningLink: |
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608 case EListeningAccessPoint: |
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609 { |
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610 // Ignore error code since there is nothing that can be done if |
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611 // these fail |
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612 iConnection.CancelProgressNotification(); |
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613 StopConnection(); |
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614 break; |
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615 } |
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616 default: |
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617 { |
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618 LOG_1( _L("CAOConnectionImpl::DoCancel >> Invalid state!") ); |
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619 Panic( EInvalidState ); |
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620 break; |
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621 } |
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622 } |
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623 } |
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624 |
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625 // --------------------------------------------------------------------------- |
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626 // CAOConnectionImpl::RunError |
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627 // --------------------------------------------------------------------------- |
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628 // |
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629 TInt CAOConnectionImpl::RunError( TInt aError ) |
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630 { |
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631 LOG_2( _L("CAOConnectionImpl::RunError: aError: %d"), aError ); |
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632 |
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633 switch ( iState ) |
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634 { |
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635 case EDisconnected: |
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636 case EOpeningLink: |
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637 case EListeningAccessPoint: |
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638 { |
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639 BrodcastDisconnectedError( aError ); |
|
640 break; |
|
641 } |
|
642 default: |
|
643 { |
|
644 LOG_1( _L("CAOConnectionImpl::RunError >> Invalid state!") ); |
|
645 Panic( EInvalidState ); |
|
646 break; |
|
647 } |
|
648 } |
|
649 ChangeState( EDisconnected ); |
|
650 |
|
651 return KErrNone; |
|
652 } |
|
653 |