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1 // btserialsession.cpp |
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2 // |
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3 // Copyright (c) 2008 - 2010 Accenture. 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 the "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 // Accenture - Initial contribution |
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11 // |
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12 |
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13 #include "btserialsession.h" |
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14 #include "btserialserver.h" |
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15 #include "btserialclient.h" |
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16 #include <fshell/btincomingserial.h> |
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17 #include "..\connection\btdebug.h" |
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18 |
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19 |
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20 void PanicClient(const RMessagePtr2& aMessage,TBtSerialServerPanic aPanic) |
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21 // |
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22 // RMessage::Panic() also completes the message. This is: |
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23 // (a) important for efficient cleanup within the kernel |
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24 // (b) a problem if the message is completed a second time |
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25 // |
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26 { |
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27 _LIT(KPanic,"BtSerialSrv"); |
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28 aMessage.Panic(KPanic,aPanic); |
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29 } |
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30 |
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31 //______________________________________________________________________________ |
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32 // CBtSerialSession |
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33 void CBtSerialSession::CreateL() |
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34 { |
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35 TRACE1("CBtSerialSession::CreateL"); |
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36 iConnection = CBluetoothIncomingSerialConnection::NewL(*this); |
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37 } |
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38 |
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39 CBtSerialSession::CBtSerialSession() |
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40 { |
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41 } |
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42 |
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43 CBtSerialSession::~CBtSerialSession() |
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44 { |
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45 TRACE1("CBtSerialSession::~CBtSerialSession"); |
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46 delete iConnection; |
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47 iReadBuf.Close(); |
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48 iWriteBuf.Close(); |
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49 Server().DropSession(); |
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50 } |
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51 |
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52 void CBtSerialSession::ServiceL(const RMessage2& aMessage) |
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53 { |
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54 switch (aMessage.Function()) |
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55 { |
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56 case EBtSerialWaitForConnection: |
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57 WaitForConnectionL(aMessage); |
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58 break; |
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59 case EBtSerialCancelWaitForConnection: |
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60 CancelWaitForConnection(aMessage); |
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61 break; |
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62 case EBtSerialIsConnected: |
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63 IsConnectedL(aMessage); |
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64 break; |
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65 case EBtSerialWrite: |
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66 WriteL(aMessage); |
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67 break; |
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68 case EBtSerialCancelWrite: |
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69 CancelWrite(aMessage); |
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70 break; |
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71 case EBtSerialRead: |
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72 ReadL(aMessage); |
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73 break; |
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74 case EBtSerialCancelRead: |
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75 CancelRead(aMessage); |
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76 break; |
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77 case EBtSerialGetConnectedDeviceAddr: |
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78 GetConnectedDeviceAddrL(aMessage); |
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79 break; |
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80 case EBtSerialGetConnectedDeviceName: |
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81 GetConnectedDeviceNameL(aMessage); |
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82 break; |
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83 default: |
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84 PanicClient(aMessage,EPanicIllegalFunction); |
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85 break; |
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86 } |
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87 } |
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88 |
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89 void CBtSerialSession::Disconnect(const RMessage2& aMessage) |
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90 { |
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91 if (iConnection->Connected()) |
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92 { |
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93 TRACE1("CBtSerialSession::Disconnect shutting down connection & storing message"); |
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94 iDisconnectMessage = aMessage; |
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95 iConnection->ShutDown(); |
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96 } |
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97 else |
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98 { |
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99 CSession2::Disconnect(aMessage); |
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100 } |
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101 } |
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102 |
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103 void CBtSerialSession::ServiceError(const RMessage2& aMessage,TInt aError) |
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104 { |
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105 if (aError==KErrBadDescriptor) |
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106 PanicClient(aMessage,EPanicBadDescriptor); |
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107 CSession2::ServiceError(aMessage,aError); |
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108 } |
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109 |
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110 inline CBtSerialServer& CBtSerialSession::Server() |
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111 { |
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112 return *static_cast<CBtSerialServer*>(const_cast<CServer2*>(CSession2::Server())); |
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113 } |
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114 |
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115 void CBtSerialSession::WaitForConnectionL(const RMessage2& aMessage) |
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116 { |
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117 TRACE1("CBtSerialSession::WaitForConnectionL"); |
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118 if (iConnection->Connected()) |
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119 { |
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120 aMessage.Complete(KErrNone); |
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121 return; |
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122 } |
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123 if (!iConnectedMessage.IsNull()) |
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124 { |
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125 User::Leave(KErrAlreadyExists); |
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126 } |
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127 iConnectedMessage = aMessage; |
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128 if (!iWaitingForConnection) |
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129 { |
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130 iConnection->WaitForConnection(); |
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131 } |
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132 } |
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133 |
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134 void CBtSerialSession::CancelWaitForConnection(const RMessage2& aMessage) |
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135 { |
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136 TRACE1("CBtSerialSession::CancelWaitForConnection"); |
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137 if (!iConnectedMessage.IsNull()) |
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138 { |
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139 iConnectedMessage.Complete(KErrCancel); |
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140 } |
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141 aMessage.Complete(KErrNone); |
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142 } |
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143 |
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144 void CBtSerialSession::IsConnectedL(const RMessage2& aMessage) |
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145 { |
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146 TRACE1("CBtSerialSession::IsConnectedL"); |
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147 aMessage.Complete(iConnection->Connected()); |
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148 } |
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149 |
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150 void CBtSerialSession::WriteL(const RMessage2& aMessage) |
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151 { |
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152 TRACE1("CBtSerialSession::WriteL"); |
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153 if (!iWriteMessage.IsNull()) |
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154 { |
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155 User::Leave(KErrInUse); |
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156 } |
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157 TInt len = aMessage.GetDesLengthL(0); |
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158 if (iWriteBuf.MaxLength() < len) |
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159 { |
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160 RBuf8 buf; |
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161 buf.CreateL(len); |
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162 buf.Swap(iWriteBuf); |
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163 buf.Close(); |
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164 } |
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165 iWriteBuf.Zero(); |
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166 aMessage.ReadL(0, iWriteBuf); |
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167 iWriteMessage = aMessage; |
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168 if (iConnection->Connected()) |
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169 { |
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170 iConnection->Write(iWriteBuf); |
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171 } |
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172 // else the write will be performed when we are connected |
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173 } |
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174 |
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175 void CBtSerialSession::CancelWrite(const RMessage2& aMessage) |
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176 { |
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177 TRACE1("CBtSerialSession::CancelWrite"); |
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178 iConnection->CancelWrite(); |
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179 iWriteBuf.Zero(); |
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180 if (!iWriteMessage.IsNull()) |
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181 { |
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182 iWriteMessage.Complete(KErrCancel); |
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183 } |
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184 aMessage.Complete(KErrNone); |
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185 } |
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186 |
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187 void CBtSerialSession::ReadL(const RMessage2& aMessage) |
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188 { |
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189 TRACE1("CBtSerialSession::ReadL"); |
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190 if (!iReadMessage.IsNull()) |
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191 { |
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192 User::Leave(KErrInUse); |
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193 } |
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194 TInt len = aMessage.GetDesMaxLengthL(0); |
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195 if (iReadBuf.MaxLength() != len) // better to add length param to CBluetoothIncomingSerialConnection::Read |
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196 { |
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197 RBuf8 buf; |
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198 buf.CreateL(len); |
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199 buf.Swap(iReadBuf); |
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200 buf.Close(); |
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201 } |
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202 iReadBuf.Zero(); |
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203 iReadMessage = aMessage; |
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204 if (iConnection->Connected()) |
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205 { |
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206 iConnection->Read(iReadBuf); |
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207 } |
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208 } |
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209 |
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210 void CBtSerialSession::CancelRead(const RMessage2& aMessage) |
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211 { |
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212 TRACE1("CBtSerialSession::CancelRead"); |
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213 iConnection->CancelRead(); |
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214 if (!iReadMessage.IsNull()) |
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215 { |
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216 iReadMessage.Complete(KErrCancel); |
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217 } |
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218 aMessage.Complete(KErrNone); |
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219 } |
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220 |
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221 void CBtSerialSession::GetConnectedDeviceNameL(const RMessage2& aMessage) |
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222 { |
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223 if (!iGetNameMessage.IsNull()) |
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224 { |
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225 User::Leave(KErrAlreadyExists); |
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226 } |
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227 iGetNameMessage = aMessage; |
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228 iConnection->GetConnectedDeviceNameL(); |
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229 } |
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230 |
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231 void CBtSerialSession::GetConnectedDeviceAddrL(const RMessage2& aMessage) |
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232 { |
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233 TBTDevAddr addr = iConnection->ConnectedDeviceAddrL(); |
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234 TPckg<TBTDevAddr> pckg(addr); |
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235 aMessage.WriteL(0, pckg); |
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236 aMessage.Complete(KErrNone); |
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237 } |
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238 |
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239 void CBtSerialSession::BtSerialConnected() |
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240 { |
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241 TRACE1("CBtSerialSession::BtSerialConnected"); |
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242 if (!iConnectedMessage.IsNull()) |
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243 { |
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244 iConnectedMessage.Complete(KErrNone); |
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245 } |
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246 if (!iWriteMessage.IsNull()) |
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247 { |
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248 iConnection->Write(iWriteBuf); |
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249 } |
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250 if (!iReadMessage.IsNull()) |
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251 { |
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252 iConnection->Read(iReadBuf); |
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253 } |
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254 } |
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255 |
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256 void CBtSerialSession::BtWriteComplete(TInt aError) |
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257 { |
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258 TRACE1("CBtSerialSession::BtWriteComplete"); |
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259 iWriteMessage.Complete(aError); |
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260 } |
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261 |
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262 void CBtSerialSession::BtReadComplete(TInt aError) |
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263 { |
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264 TRACE1("CBtSerialSession::BtReadComplete"); |
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265 if (aError == KErrNone) |
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266 { |
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267 aError = iReadMessage.Write(0, iReadBuf); |
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268 } |
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269 iReadMessage.Complete(aError); |
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270 } |
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271 |
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272 void CBtSerialSession::BtSerialError(TInt aError) |
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273 { |
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274 TRACE1("CBtSerialSession::BtSerialError"); |
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275 if (!iConnectedMessage.IsNull()) |
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276 { |
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277 iConnectedMessage.Complete(aError); |
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278 } |
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279 } |
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280 |
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281 void CBtSerialSession::BtShutdownComplete(TInt /*aError*/) |
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282 { |
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283 TRACE1("CBtSerialSession::BtShutdownComplete"); |
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284 CSession2::Disconnect(iDisconnectMessage); |
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285 } |
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286 |
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287 void CBtSerialSession::BtNameReceived(TInt aError, const TDesC& aName) |
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288 { |
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289 TInt len = 0; |
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290 if (aError == KErrNone) |
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291 { |
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292 aError = iGetNameMessage.GetDesMaxLength(0); |
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293 if (aError >= 0) |
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294 { |
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295 len = aError; |
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296 aError = KErrNone; |
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297 } |
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298 } |
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299 if (aError == KErrNone) |
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300 { |
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301 aError = iGetNameMessage.Write(0, aName.Left(len)); |
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302 } |
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303 if (aError == KErrNone) |
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304 { |
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305 if (aName.Length() > len) |
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306 { |
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307 aError = KErrOverflow; |
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308 } |
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309 } |
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310 iGetNameMessage.Complete(aError); |
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311 } |
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312 |