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1 // Copyright (c) 2006-2009 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 : CReceiver.cpp |
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15 // Part of : ConnectionMgr |
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16 // Version : SIP/5.0 |
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17 // |
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18 |
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19 |
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20 |
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21 #include "CReceiver.h" |
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22 #include "SipLogs.h" |
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23 #include "CSipConnection.h" |
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24 #include "CommonConsts.h" |
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25 #include "MContext.h" |
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26 #include "MSigCompController.h" |
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27 #include "CSocketContainer.h" |
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28 |
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29 // ----------------------------------------------------------------------------- |
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30 // CReceiver::NewL |
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31 // ----------------------------------------------------------------------------- |
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32 // |
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33 CReceiver* CReceiver::NewL( MContext& aContext, TUint aIPAddrFamily ) |
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34 { |
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35 CReceiver* self = NewLC( aContext, aIPAddrFamily ); |
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36 CleanupStack::Pop( self ); |
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37 return self; |
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38 } |
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39 |
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40 // ----------------------------------------------------------------------------- |
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41 // CReceiver::NewLC |
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42 // ----------------------------------------------------------------------------- |
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43 // |
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44 CReceiver* CReceiver::NewLC( MContext& aContext, TUint aIPAddrFamily ) |
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45 { |
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46 CReceiver* self = new ( ELeave ) CReceiver( aContext, aIPAddrFamily ); |
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47 CleanupStack::PushL( self ); |
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48 return self; |
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49 } |
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50 |
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51 // ----------------------------------------------------------------------------- |
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52 // CReceiver::CReceiver |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 CReceiver::CReceiver( MContext& aContext, TUint aIPAddrFamily ) : |
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56 CActive( EPriorityStandard ), |
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57 iContext( aContext ), |
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58 iIPAddrFamily( aIPAddrFamily ), |
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59 iState( EIdle ), |
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60 iReceivedMsgPtr( 0, 0, 0 ) |
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61 { |
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62 CActiveScheduler::Add( this ); |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // CReceiver::~CReceiver |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 CReceiver::~CReceiver() |
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70 { |
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71 Cancel(); |
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72 delete iReceivedMsg; |
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73 } |
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74 |
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75 // ----------------------------------------------------------------------------- |
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76 // CReceiver::DoCancel |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 void CReceiver::DoCancel() |
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80 { |
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81 CSocketContainer* socketContainer = |
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82 iContext.SocketContainer( iIPAddrFamily ); |
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83 if ( iState == EListening ) |
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84 { |
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85 socketContainer->Socket().CancelIoctl(); |
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86 } |
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87 else |
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88 { |
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89 socketContainer->Socket().CancelRecv(); |
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90 } |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // CReceiver::Listen |
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95 // ----------------------------------------------------------------------------- |
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96 // |
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97 void CReceiver::Listen() |
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98 { |
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99 CSocketContainer* socketContainer = |
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100 iContext.SocketContainer( iIPAddrFamily ); |
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101 if ( socketContainer && !IsActive() ) |
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102 { |
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103 iState = EListening; |
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104 |
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105 iFlags() = KSockSelectRead | KSockSelectExcept; |
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106 socketContainer->Socket().Ioctl( |
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107 KIOctlSelect, |
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108 iStatus, |
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109 &iFlags, |
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110 KSOLSocket ); |
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111 SetActive(); |
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112 } |
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113 } |
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114 |
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115 // ----------------------------------------------------------------------------- |
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116 // CReceiver::RunL |
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117 // ----------------------------------------------------------------------------- |
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118 // |
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119 void CReceiver::RunL() |
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120 { |
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121 switch ( iStatus.Int() ) |
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122 { |
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123 case KErrNone: |
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124 { |
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125 if ( iState == EListening ) |
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126 { |
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127 ReceivePendingL(); |
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128 } |
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129 else if ( iState == EReceiving ) |
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130 { |
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131 __SIP_MESSAGE_LOG( "Connection Manager::ReceivedFromNetwork", |
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132 *iReceivedMsg ) |
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133 __SIP_DES8_LOG( "Received data via UDP", *iReceivedMsg ) |
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134 // Give away ownership of the received message |
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135 HBufC8* tmpReceivedMsg = iReceivedMsg; |
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136 iReceivedMsg = 0; |
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137 |
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138 Listen(); |
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139 ReceivedDataL( tmpReceivedMsg ); |
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140 } |
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141 else |
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142 { |
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143 // Required by PC-Lint |
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144 } |
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145 break; |
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146 } |
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147 case KErrCancel: |
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148 break; |
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149 default: |
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150 { |
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151 __SIP_INT_LOG1( "CReceiver::RunL() status", iStatus.Int() ) |
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152 iContext.Remove(); |
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153 break; |
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154 } |
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155 } |
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156 } |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // CReceiver::ReceivedDataL |
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160 // ----------------------------------------------------------------------------- |
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161 // |
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162 void CReceiver::ReceivedDataL( HBufC8* aData ) |
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163 { |
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164 if ( iContext.SigCompHandler()->IsSupported() && |
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165 iContext.SigCompHandler()->IsSigCompMsg( *aData ) ) |
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166 { |
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167 __SIP_LOG( "IsSigComp complete == ETrue" ) |
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168 |
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169 CleanupStack::PushL( aData ); |
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170 TUint bytesconsumed = 0; |
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171 CBufBase* decompressedmessage = |
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172 iContext.SigCompHandler()->DecompressL( *aData, |
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173 bytesconsumed, |
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174 EFalse ); |
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175 CleanupStack::PopAndDestroy( aData ); |
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176 CleanupStack::PushL( decompressedmessage ); |
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177 |
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178 HBufC8* receiveddata = HBufC8::NewL( decompressedmessage->Size() ); |
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179 receiveddata->Des().Copy( decompressedmessage->Ptr( 0 ) ); |
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180 CleanupStack::PopAndDestroy( decompressedmessage ); |
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181 |
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182 iContext.ReceivedDataL( receiveddata, iAddr, ETrue ); |
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183 } |
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184 else |
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185 { |
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186 iContext.ReceivedDataL( aData, iAddr, EFalse ); |
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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 // CReceiver::ReceivePendingL |
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192 // ----------------------------------------------------------------------------- |
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193 // |
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194 void CReceiver::ReceivePendingL() |
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195 { |
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196 __ASSERT_ALWAYS( !IsActive(), User::Leave( KErrInUse ) ); |
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197 |
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198 CSocketContainer* socketContainer = |
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199 iContext.SocketContainer( iIPAddrFamily ); |
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200 __ASSERT_ALWAYS( socketContainer, User::Leave( KErrNotFound ) ); |
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201 |
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202 iState = EReceiving; |
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203 |
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204 TInt bytesPending( 0 ); |
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205 User::LeaveIfError( |
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206 socketContainer->Socket().GetOpt( |
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207 KSOReadBytesPending, |
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208 KSOLSocket, |
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209 bytesPending ) ); |
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210 |
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211 __SIP_INT_LOG1( "CReceiver::ReceivePendingL() bytes", bytesPending ) |
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212 |
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213 // Don't allow excessive buffer |
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214 if ( bytesPending > KMaxMessageLength ) |
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215 { |
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216 bytesPending = KMaxMessageLength; |
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217 } |
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218 |
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219 delete iReceivedMsg; |
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220 iReceivedMsg = 0; |
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221 iReceivedMsg = HBufC8::NewL( bytesPending ); |
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222 iReceivedMsgPtr.Set( iReceivedMsg->Des() ); |
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223 socketContainer->Socket().RecvFrom( iReceivedMsgPtr, iAddr, 0, iStatus ); |
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224 SetActive(); |
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225 } |
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226 |
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227 // ----------------------------------------------------------------------------- |
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228 // CReceiver::RunError |
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229 // ----------------------------------------------------------------------------- |
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230 // |
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231 TInt CReceiver::RunError( TInt aError ) |
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232 { |
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233 Listen(); |
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234 if ( aError != KErrNoMemory ) |
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235 { |
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236 return KErrNone; |
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237 } |
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238 return aError; |
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239 } |