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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : TStateActiveResolving.cpp |
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15 // Part of : ConnectionMgr |
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16 // Implementation |
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17 // Version : SIP/4.0 |
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18 // |
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19 |
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20 |
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21 |
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22 #include "TStateActiveResolving.h" |
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23 #include "msipconnectioncontext.h" |
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24 #include "SipLogs.h" |
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25 |
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26 // ---------------------------------------------------------------------------- |
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27 // TStateActiveResolving::Enter |
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28 // ---------------------------------------------------------------------------- |
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29 // |
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30 void TStateActiveResolving::Enter( TInt /*aError*/ ) |
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31 { |
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32 __SIP_LOG( "TStateActiveResolving::Enter" ) |
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33 iTimerValue = KInitialResolvingTimer; |
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34 iCumulativeTimerValue = KInitialResolvingTimer; |
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35 TInt err( KErrNone ); |
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36 |
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37 // Pass KErrNone for StartMonitoringL at this stage |
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38 // since error is needed only for context availability |
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39 // monitoring which is at this point unnecessary |
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40 if ( !iContext.DoTransportResourcesExist() ) |
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41 { |
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42 TRAP( err, |
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43 { |
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44 iContext.CreateTransportResourcesL(); |
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45 iContext.StartMonitoringL( KErrNone ); |
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46 } ); |
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47 if ( err ) |
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48 { |
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49 EnterState( MStateModel::EUnavailable, err ); |
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50 return; |
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51 } |
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52 } |
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53 |
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54 if ( HasAddress() ) |
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55 { |
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56 // Address has to exist, otherwise resolving hasn't been done at this |
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57 // point and we cannot enter to resolved state |
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58 EnterActiveResolvedState(); |
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59 } |
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60 else |
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61 { |
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62 TRAP( err, iTimerId = iTimer.StartL( this, KInitialResolvingTimer ) ); |
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63 if( err ) |
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64 { |
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65 EnterState( MStateModel::EUnavailable, err ); |
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66 } |
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67 } |
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68 } |
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69 |
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70 // ---------------------------------------------------------------------------- |
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71 // TStateActiveResolving::Exit |
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72 // ---------------------------------------------------------------------------- |
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73 // |
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74 void TStateActiveResolving::Exit() |
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75 |
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76 { |
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77 iTimer.Stop( iTimerId ); |
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78 } |
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79 |
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80 // ---------------------------------------------------------------------------- |
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81 // TStateActiveResolving::NetworkStateChanged |
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82 // ---------------------------------------------------------------------------- |
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83 // |
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84 void TStateActiveResolving::NetworkStateChanged( |
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85 MSIPNetworkObserver::TNetworkState aState, |
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86 TInt aError ) |
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87 { |
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88 __SIP_INT_LOG2( "TStateActiveResolving::NetworkStateChanged", aState, aError ) |
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89 if( aError) |
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90 { |
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91 if (iContext.ConnectionType()==MSIPConnectionContext::ELanBearer) |
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92 { |
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93 EnterState( MStateModel::EInactiveMonitoring, aError ); // For Any Error on WLAN, Enable Recovery Timers. |
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94 } |
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95 else |
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96 { |
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97 EnterState( MStateModel::EUnavailable, aError ); //For other bearers No recovery possible. |
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98 } |
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99 return; |
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100 } |
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101 if( aState == MSIPNetworkObserver::ENetworkSuspended ) |
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102 { |
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103 EnterState( MStateModel::ESuspended ); |
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104 } |
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105 else if( aState == MSIPNetworkObserver::ENetworkInactive ) |
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106 { |
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107 EnterState( MStateModel::EInactiveMonitoring ); |
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108 } |
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109 else if( aState == MSIPNetworkObserver::EConnectionLost ) |
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110 { |
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111 EnterState( MStateModel::EInactiveConnecting ); |
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112 } |
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113 else |
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114 { |
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115 // do nothing, "else" required by PC-Lint.. |
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116 } |
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117 } |
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118 |
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119 // ---------------------------------------------------------------------------- |
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120 // TStateActiveResolving::TimerExpiredL |
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121 // ---------------------------------------------------------------------------- |
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122 // |
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123 void TStateActiveResolving::TimerExpiredL( TTimerId /*aTimerId*/, |
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124 TAny* /*aTimerParam*/ ) |
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125 { |
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126 if( HasAddress() ) |
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127 { |
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128 EnterActiveResolvedState(); |
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129 } |
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130 else |
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131 { |
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132 iTimerId = iTimer.StartL( this, CalculateTimerValue() ); |
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133 } |
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134 } |
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135 |
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136 // ---------------------------------------------------------------------------- |
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137 // TStateActiveResolving::HasAddress |
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138 // ---------------------------------------------------------------------------- |
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139 // |
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140 TBool TStateActiveResolving::HasAddress() |
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141 { |
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142 TInetAddr address; |
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143 iContext.ResolveLocalAddress( address ); |
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144 return ( !address.IsWildAddr() ); |
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145 } |
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146 |
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147 // ---------------------------------------------------------------------------- |
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148 // TStateActiveResolving::CalculateTimerValue |
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149 // ---------------------------------------------------------------------------- |
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150 // |
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151 TUint TStateActiveResolving::CalculateTimerValue() |
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152 { |
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153 if ( iCumulativeTimerValue >= KStartDoublingTimerValue ) |
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154 { |
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155 if ( iTimerValue < KMaximumResolvingTimer ) |
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156 { |
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157 iTimerValue *= 2; |
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158 } |
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159 } |
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160 iCumulativeTimerValue += iTimerValue; |
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161 return iTimerValue; |
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162 } |
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163 |
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164 // ---------------------------------------------------------------------------- |
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165 // TStateActiveResolving::EnterActiveResolvedState |
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166 // ---------------------------------------------------------------------------- |
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167 // |
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168 void TStateActiveResolving::EnterActiveResolvedState() |
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169 { |
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170 TRAPD( err, iContext.CreateDefaultTransportsL() ) |
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171 if ( err ) |
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172 { |
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173 EnterState( MStateModel::EUnavailable, err ); |
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174 } |
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175 else |
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176 { |
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177 EnterState( MStateModel::EActiveResolved ); |
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178 } |
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179 } |