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1 /* |
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2 * Copyright (c) 2009 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: |
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15 * |
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16 */ |
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17 |
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18 #include "logging.h" |
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19 #include "dbgtrcportmgr.h" |
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20 #include "ostbaserouter.h" |
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21 #include "dbgtrccmdcodes.h" |
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22 #include "ostmessage.h" |
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23 |
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24 #include "dbgtrcsrvsession.h" |
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25 #include "dbgtrcsrvserver.h" |
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26 |
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27 |
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28 |
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29 // Type definitions |
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30 |
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31 // Constants |
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32 const TInt KDbgTrcServerTransferBufferExpandSize = 100; |
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33 //const TInt KSlot0 = 0; |
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34 const TInt KSlot1 = 1; |
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35 const TInt KSlot2 = 2; |
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36 //const TInt KSlot3 = 3; |
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37 |
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38 // Enumerations |
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39 |
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40 // Classes referenced |
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41 |
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42 // Static functions |
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43 // |
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44 // Checks for a null'd handle before attempting complete. |
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45 // If handle is null'd then don't complete as this will panic server. |
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46 // |
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47 void SafeComplete(const RMessagePtr2& aMessage, TInt aCompletionCode) |
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48 { |
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49 if(!aMessage.IsNull()) |
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50 { |
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51 aMessage.Complete(aCompletionCode); |
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52 } |
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53 } |
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54 |
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55 |
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56 // |
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57 // CDbgTrcSrvSession (source) |
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58 // |
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59 |
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60 // |
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61 // CTrkTcbSrvServer::CDbgTrcSrvSession() |
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62 // |
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63 // Constructor |
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64 // |
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65 CDbgTrcSrvSession::CDbgTrcSrvSession(COstBaseRouter* aOstRouter) |
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66 : iPendingRead(EFalse), |
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67 iPendingWrite(EFalse), |
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68 iPendingReadBufferLength(0), |
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69 iOstRouter(aOstRouter), |
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70 iRecvMessageQueue(1), |
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71 iProtocolIds(1) |
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72 { |
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73 LOG_MSG("CDbgTrcSrvSession::CDbgTrcSrvSession"); |
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74 } |
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75 |
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76 // |
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77 // CTrkTcbSrvServer::~CDbgTrcSrvSession() |
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78 // |
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79 // Destructor |
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80 // |
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81 CDbgTrcSrvSession::~CDbgTrcSrvSession() |
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82 { |
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83 LOG_MSG("CDbgTrcSrvSession::~CDbgTrcSrvSession"); |
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84 |
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85 HandleServerDestruction(); |
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86 delete iTransferBuffer; |
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87 |
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88 iRecvMessageQueue.ResetAndDestroy(); |
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89 iRecvMessageQueue.Close(); |
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90 |
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91 iProtocolIds.Reset(); |
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92 iProtocolIds.Close(); |
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93 |
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94 //get a reference to the server |
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95 CDbgTrcSrvServer* dbgTrcServer = (CDbgTrcSrvServer*)Server(); |
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96 |
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97 //notify the server that the session has been opened |
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98 if (dbgTrcServer != NULL) |
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99 dbgTrcServer->SessionClosed(); |
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100 } |
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101 |
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102 // |
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103 // CTrkTcbSrvServer::ConstructL() |
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104 // |
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105 // Creates an instance of CDbgTrcSrvSession. |
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106 // |
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107 void CDbgTrcSrvSession::ConstructL() |
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108 { |
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109 LOG_MSG("CDbgTrcSrvSession::ConstructL"); |
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110 |
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111 iTransferBuffer = CBufFlat::NewL(KDbgTrcServerTransferBufferExpandSize); |
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112 |
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113 iRecvMessageQueue.Reset(); |
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114 |
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115 iProtocolIds.Reset(); |
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116 |
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117 } |
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118 |
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119 void CDbgTrcSrvSession::CreateL() |
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120 { |
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121 //get a reference to the server |
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122 CDbgTrcSrvServer* dbgTrcServer = (CDbgTrcSrvServer*)Server(); |
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123 |
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124 //notify the server that the session has been opened |
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125 if (dbgTrcServer != NULL) |
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126 dbgTrcServer->SessionOpened(); |
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127 } |
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128 // |
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129 // CTrkTcbSrvServer::NewL() |
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130 // |
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131 // Static self construction |
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132 // |
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133 CDbgTrcSrvSession* CDbgTrcSrvSession::NewL(COstBaseRouter* aOstRouter) |
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134 { |
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135 LOG_MSG("CDbgTrcSrvSession::NewL"); |
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136 |
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137 CDbgTrcSrvSession* self = new(ELeave) CDbgTrcSrvSession(aOstRouter); |
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138 CleanupStack::PushL(self); |
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139 self->ConstructL(); |
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140 CleanupStack::Pop(self); |
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141 return self; |
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142 } |
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143 |
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144 // |
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145 // CTrkTcbSrvServer::HandleServerDestruction() |
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146 // |
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147 // Called by the server's destructor. We need to be told that the server is |
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148 // being destroyed. |
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149 // |
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150 void CDbgTrcSrvSession::HandleServerDestruction() |
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151 { |
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152 LOG_MSG("CDbgTrcSrvSession::HandleServerDestruction"); |
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153 |
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154 // disconnect here just in case if the client has not disconnected before shutting down. |
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155 DoDisconnect(); |
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156 } |
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157 |
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158 // |
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159 // CTrkTcbSrvServer::ServiceL() |
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160 // |
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161 // Services requests from a client. |
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162 // Called by the IPC framework whenever a client sends a request to the server. |
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163 // |
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164 void CDbgTrcSrvSession::ServiceL(const RMessage2& aMessage) |
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165 { |
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166 LOG_MSG("CDbgTrcSrvSession::ServiceL"); |
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167 |
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168 const TInt cmd = aMessage.Function(); |
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169 switch(cmd) |
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170 { |
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171 case EDbgTrcCmdCodeGetAcmConfig: |
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172 CmdGetAcmConfigL(aMessage); |
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173 break; |
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174 case EDbgTrcCmdCodeSetAcmConfig: |
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175 CmdSetAcmConfigL(aMessage); |
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176 break; |
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177 case EDbgTrcCmdCodeOpen: |
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178 CmdOpenCommPortL(aMessage); |
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179 break; |
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180 case EDbgTrcCmdCodeClose: |
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181 CmdCloseCommPort(aMessage); |
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182 break; |
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183 case EDbgTrcCmdCodeRegisterId: |
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184 CmdRegisterProtocol(aMessage); |
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185 break; |
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186 case EDbgTrcCmdCodeRegisterIds: |
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187 CmdRegisterProtocolIdsL(aMessage); |
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188 break; |
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189 case EDbgTrcCmdCodeUnRegisterId: |
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190 CmdUnRegisterProtocol(aMessage); |
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191 break; |
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192 case EDbgTrcCmdCodeUnRegisterIds: |
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193 CmdUnRegisterProtocolIdsL(aMessage); |
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194 break; |
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195 case EDbgTrcCmdCodeReadMsg: |
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196 CmdReadMsgL(aMessage); |
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197 break; |
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198 case EDbgTrcCmdCodeReadCancel: |
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199 CmdReadCancel(aMessage); |
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200 break; |
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201 case EDbgTrcCmdCodeWriteMsg: |
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202 CmdWriteMsgL(aMessage); |
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203 break; |
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204 case EDbgTrcCmdCodeWriteCancel: |
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205 CmdWriteCancel(aMessage); |
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206 break; |
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207 case EDbgTrcCmdDisconnect: |
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208 CmdDisconnect(aMessage); |
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209 default: |
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210 aMessage.Panic(KServerIntiatedSessionPanic, EDbgTrcServerInitiatedClientPanicInvalidOperation); |
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211 break; |
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212 } |
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213 |
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214 } |
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215 |
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216 |
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217 // |
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218 // CTrkTcbSrvServer::CmdGetAcmConfigL() |
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219 // |
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220 // Gets the current port configuration |
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221 // |
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222 void CDbgTrcSrvSession::CmdGetAcmConfigL(const RMessage2& aMessage) |
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223 { |
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224 LOG_MSG("CDbgTrcSrvSession::CmdGetAcmConfigL"); |
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225 |
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226 const TInt desLength = static_cast<TInt>(aMessage.Int0()); |
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227 |
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228 if (desLength > 0 && desLength == sizeof(TAcmConfigV01)) |
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229 { |
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230 TAcmConfig acmConfig; |
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231 iOstRouter->GetPortConfig(acmConfig); |
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232 |
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233 aMessage.WriteL(KSlot1, acmConfig); |
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234 aMessage.Complete(KErrNone); |
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235 } |
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236 else |
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237 { |
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238 aMessage.Complete(KErrBadDescriptor); |
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239 } |
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240 } |
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241 |
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242 // |
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243 // CTrkTcbSrvServer::CmdSetAcmConfigL() |
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244 // |
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245 // Sets the port configuration if its not already set |
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246 // |
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247 void CDbgTrcSrvSession::CmdSetAcmConfigL(const RMessage2& aMessage) |
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248 { |
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249 LOG_MSG("CDbgTrcSrvSession::CmdSetAcmConfigL"); |
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250 |
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251 const TInt desLength = static_cast<TInt>(aMessage.Int0()); |
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252 |
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253 if (desLength > 0 && desLength == sizeof(TAcmConfigV01)) |
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254 { |
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255 TAcmConfig acmConfig; |
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256 aMessage.ReadL(KSlot1, acmConfig); |
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257 |
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258 TInt err = iOstRouter->SetPortConfig(acmConfig); |
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259 |
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260 aMessage.Complete(err); |
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261 } |
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262 else |
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263 { |
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264 aMessage.Complete(KErrBadDescriptor); |
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265 } |
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266 } |
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267 |
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268 // |
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269 // CTrkTcbSrvServer::CmdOpenCommPort() |
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270 // |
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271 // Opens the comm port, if its already opened, |
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272 // just increments the number of active connects and returns true |
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273 // |
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274 // |
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275 void CDbgTrcSrvSession::CmdOpenCommPortL(const RMessage2& aMessage) |
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276 { |
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277 LOG_MSG("CDbgTrcSrvSession::CmdOpenCommPort"); |
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278 |
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279 TInt err = iOstRouter->OpenCommPortL(); |
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280 aMessage.Complete(err); |
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281 } |
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282 |
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283 // |
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284 // CTrkTcbSrvServer::CmdCloseCommPort() |
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285 // |
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286 // Closes the comm port, the port is actually closed when the |
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287 // number of active connections is 0 |
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288 // |
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289 // |
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290 void CDbgTrcSrvSession::CmdCloseCommPort(const RMessage2& aMessage) |
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291 { |
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292 LOG_MSG("CDbgTrcSrvSession::CmdCloseCommPort"); |
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293 |
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294 TInt err = iOstRouter->CloseCommPort(); |
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295 aMessage.Complete(err); |
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296 } |
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297 |
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298 // |
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299 // CTrkTcbSrvServer::CmdRegisterProtocol() |
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300 // |
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301 // Registers the protocol with the id |
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302 // This is necessary to be able to read messages |
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303 // |
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304 // |
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305 void CDbgTrcSrvSession::CmdRegisterProtocol(const RMessage2& aMessage) |
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306 { |
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307 LOG_MSG("CDbgTrcSrvSession::CmdRegisterProtocol"); |
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308 |
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309 const TOstProtIds aProtocolId = static_cast<TOstProtIds>(aMessage.Int0()); |
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310 |
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311 TBool aNeedHeader = static_cast<TBool>(aMessage.Int1()); |
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312 |
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313 iOstRouter->RegisterProtocol(aProtocolId, this, aNeedHeader); |
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314 |
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315 iProtocolIds.Append(aProtocolId); |
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316 |
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317 aMessage.Complete(KErrNone); |
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318 } |
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319 |
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320 // |
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321 // CTrkTcbSrvServer::CmdUnRegisterProtocol() |
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322 // |
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323 // Registers the protocol with the id |
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324 // This is necessary to be able to read messages |
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325 // |
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326 // |
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327 void CDbgTrcSrvSession::CmdUnRegisterProtocol(const RMessage2& aMessage) |
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328 { |
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329 LOG_MSG("CDbgTrcSrvSession::CmdUnRegisterProtocol"); |
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330 |
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331 const TOstProtIds aProtocolId = static_cast<TOstProtIds>(aMessage.Int0()); |
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332 |
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333 iOstRouter->UnRegisterProtocol(aProtocolId); |
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334 for (TInt i=0; i<iProtocolIds.Count(); i++) |
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335 { |
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336 if (iProtocolIds[i] == aProtocolId) |
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337 { |
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338 iProtocolIds.Remove(i); |
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339 break; |
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340 } |
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341 } |
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342 |
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343 aMessage.Complete(KErrNone); |
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344 } |
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345 |
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346 // |
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347 // CTrkTcbSrvServer::CmdRegisterProtocolIds() |
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348 // |
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349 // Registers the protocol with the id |
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350 // This is necessary to be able to read messages |
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351 // |
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352 // |
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353 void CDbgTrcSrvSession::CmdRegisterProtocolIdsL(const RMessage2& aMessage) |
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354 { |
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355 LOG_MSG("CDbgTrcSrvSession::CmdRegisterProtocolIdsL"); |
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356 |
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357 TBool aNeedHeader = static_cast<TBool>(aMessage.Int0()); |
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358 const TInt numberOfIds = static_cast<TInt>(aMessage.Int1()); |
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359 |
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360 TBuf8<25> protocolIds; |
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361 aMessage.ReadL(KSlot2, protocolIds); |
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362 |
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363 const TUint8* protocolPtr = protocolIds.Ptr(); |
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364 for (TInt i=0; i<numberOfIds; i++) |
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365 { |
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366 iOstRouter->RegisterProtocol((TOstProtIds)protocolPtr[i], this, aNeedHeader); |
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367 iProtocolIds.Append((TOstProtIds)protocolPtr[i]); |
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368 } |
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369 |
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370 aMessage.Complete(KErrNone); |
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371 |
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372 } |
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373 |
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374 // |
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375 // CTrkTcbSrvServer::CmdUnRegisterProtocol() |
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376 // |
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377 // Registers the protocol with the id |
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378 // This is necessary to be able to read messages |
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379 // |
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380 // |
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381 void CDbgTrcSrvSession::CmdUnRegisterProtocolIdsL(const RMessage2& aMessage) |
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382 { |
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383 LOG_MSG("CDbgTrcSrvSession::CmdUnRegisterProtocolIdsL"); |
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384 |
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385 const TInt numberOfIds = static_cast<TInt>(aMessage.Int0()); |
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386 |
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387 TBuf8<25> protocolIds; |
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388 aMessage.ReadL(KSlot1, protocolIds); |
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389 |
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390 const TUint8* protocolPtr = protocolIds.Ptr(); |
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391 for (TInt i=0; i<numberOfIds; i++) |
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392 { |
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393 iOstRouter->UnRegisterProtocol((TOstProtIds)protocolPtr[i]); |
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394 for (TInt j=0; j<iProtocolIds.Count(); j++) |
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395 { |
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396 if (iProtocolIds[j] == (TOstProtIds)protocolPtr[i]) |
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397 { |
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398 iProtocolIds.Remove(j); |
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399 break; |
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400 } |
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401 } |
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402 } |
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403 |
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404 aMessage.Complete(KErrNone); |
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405 } |
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406 |
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407 |
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408 // |
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409 // CTrkTcbSrvServer::CmdReadMsgL() |
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410 // |
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411 // Gets the data for read file request and calls the session engine read file method. |
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412 // |
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413 void CDbgTrcSrvSession::CmdReadMsgL(const RMessage2& aMessage) |
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414 { |
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415 LOG_MSG("CDbgTrcSrvSession::CmdReadMsg"); |
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416 |
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417 if (iProtocolIds.Count() <= 0) |
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418 { |
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419 // No protocols are registered, just complete request here. |
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420 aMessage.Complete(KErrAccessDenied); |
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421 return; |
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422 } |
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423 |
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424 if (iRecvMessageQueue.Count() > 0) |
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425 { |
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426 LOG_MSG("Message found in recieve queue"); |
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427 |
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428 iPendingReadBufferLength = static_cast<TUint>(aMessage.Int0()); |
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429 |
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430 COstMessage* ostMsg = iRecvMessageQueue[0]; |
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431 HBufC8* msg = ostMsg->iMsgBuffer; |
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432 |
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433 if (msg->Length() <= iPendingReadBufferLength) |
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434 { |
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435 //write the file data into the client descriptor |
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436 aMessage.WriteL(KSlot1, msg->Des()); |
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437 aMessage.Complete(KErrNone); |
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438 |
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439 // now remove the message from the queue |
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440 SafeDelete(iRecvMessageQueue[0]); |
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441 iRecvMessageQueue.Remove(0); |
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442 } |
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443 else |
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444 { |
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445 aMessage.Complete(KErrBadDescriptor); |
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446 } |
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447 } |
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448 else |
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449 { |
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450 if (iPendingRead) |
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451 { |
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452 aMessage.Complete(KErrAlreadyExists); |
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453 } |
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454 else |
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455 { |
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456 iBlockedRead = aMessage; |
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457 iPendingReadBufferLength = static_cast<TUint>(aMessage.Int0()); |
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458 |
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459 iPendingRead = ETrue; |
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460 |
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461 // initiate the read. |
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462 iOstRouter->ReadMessage(); |
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463 } |
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464 } |
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465 } |
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466 |
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467 void CDbgTrcSrvSession::CmdReadCancel(const RMessage2& aMessage) |
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468 { |
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469 LOG_MSG("CDbgTrcSrvSession::CmdReadCancel"); |
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470 |
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471 if (iPendingRead && iBlockedRead.Handle()) |
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472 { |
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473 SafeComplete(iBlockedRead, KErrCancel); |
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474 iPendingRead = EFalse; |
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475 } |
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476 |
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477 // now complete the read cancel request. |
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478 SafeComplete(aMessage, KErrNone); |
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479 } |
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480 |
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481 void CDbgTrcSrvSession::CmdWriteMsgL(const RMessage2& aMessage) |
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482 { |
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483 LOG_MSG("CDbgTrcSrvSession::CmdWriteMsg"); |
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484 |
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485 if (iPendingWrite) |
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486 { |
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487 aMessage.Complete(KErrAlreadyExists); |
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488 } |
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489 else |
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490 { |
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491 const TBool hasHeader = static_cast<TInt>(aMessage.Int0()); |
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492 const TInt msgLength = static_cast<TInt>(aMessage.Int1()); |
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493 |
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494 if (msgLength > 0) |
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495 { |
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496 if (!hasHeader && iProtocolIds.Count() != 1) |
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497 { |
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498 // For now, if there is no header, then we should have only one protocol id registered by the client. |
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499 // otherwise we don't support writing the message. |
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500 aMessage.Complete(KErrNotSupported); |
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501 return; |
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502 } |
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503 |
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504 HBufC8* msgData = HBufC8::NewLC(msgLength); |
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505 TPtr8 pMsgData(msgData->Des()); |
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506 aMessage.ReadL(KSlot2, pMsgData); |
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507 |
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508 iBlockedWrite = aMessage; |
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509 iPendingWrite = ETrue; |
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510 |
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511 if (hasHeader) |
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512 iOstRouter->WriteMessageL(*msgData, this); |
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513 else |
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514 iOstRouter->WriteMessageL(*msgData, this, iProtocolIds[0]); |
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515 //iOstRouter->WriteMessage(*msgData, this); |
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516 |
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517 |
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518 CleanupStack::PopAndDestroy(msgData); |
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519 } |
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520 else |
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521 { |
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522 aMessage.Complete(KErrBadDescriptor); |
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523 } |
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524 } |
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525 } |
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526 |
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527 void CDbgTrcSrvSession::CmdWriteCancel(const RMessage2& aMessage) |
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528 { |
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529 LOG_MSG("CDbgTrcSrvSession::CmdWriteCancel"); |
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530 |
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531 // Just complete the pending writes, we don't really try to cancel the actual writes themselves. |
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532 if (iPendingWrite && iBlockedWrite.Handle()) |
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533 { |
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534 SafeComplete(iBlockedWrite, KErrCancel); |
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535 iPendingWrite = EFalse;; |
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536 } |
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537 |
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538 // now complete the write cancel message |
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539 aMessage.Complete(KErrNone); |
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540 } |
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541 |
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542 void CDbgTrcSrvSession::CmdDisconnect(const RMessage2& aMessage) |
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543 { |
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544 LOG_MSG("CDbgTrcSrvSession::CmdDisconnect"); |
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545 |
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546 DoDisconnect(); |
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547 aMessage.Complete(KErrNone); |
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548 } |
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549 |
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550 |
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551 void CDbgTrcSrvSession::DoDisconnect() |
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552 { |
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553 LOG_MSG("CDbgTrcSrvSession::Disconnect"); |
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554 |
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555 for (TInt i=0; i<iProtocolIds.Count(); i++) |
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556 { |
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557 iOstRouter->UnRegisterProtocol(iProtocolIds[i]); |
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558 } |
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559 iProtocolIds.Reset(); |
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560 |
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561 if (iPendingRead) |
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562 { |
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563 SafeComplete(iBlockedRead, KErrCancel); |
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564 iPendingRead = EFalse; |
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565 } |
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566 if (iPendingWrite) |
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567 { |
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568 SafeComplete(iBlockedWrite, KErrCancel); |
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569 iPendingWrite = EFalse; |
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570 } |
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571 } |
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572 |
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573 // |
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574 // CTrkTcbSrvServer::CmdShutDownServer() |
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575 // |
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576 // Stops the active scheduler. This way, server process will run to completion. |
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577 // |
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578 void CDbgTrcSrvSession::MessageAvailableL(TDesC8& aMsg) |
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579 { |
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580 LOG_MSG("CDbgTrcSrvSession::MessageAvailable"); |
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581 |
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582 if (iPendingRead && iBlockedRead.Handle()) |
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583 { |
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584 // read is pending, complete it now |
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585 if (aMsg.Length() <= iPendingReadBufferLength) |
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586 { |
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587 LOG_MSG("Completing read request"); |
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588 |
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589 //write the file data into the client descriptor |
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590 TRAPD(err, iBlockedRead.WriteL(KSlot1, aMsg)) |
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591 SafeComplete(iBlockedRead, err); |
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592 |
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593 LOG_MSG("Completed read request"); |
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594 |
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595 iPendingRead = EFalse; |
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596 // the message is completed, return from here |
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597 return; |
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598 } |
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599 else |
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600 { |
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601 LOG_MSG("Bad descriptor unable to complete read request"); |
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602 SafeComplete(iBlockedRead, KErrBadDescriptor); |
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603 iPendingRead = EFalse; |
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604 } |
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605 } |
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606 else |
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607 { |
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608 LOG_MSG("Invalid read request handle"); |
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609 } |
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610 |
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611 LOG_MSG("Queueing up the message"); |
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612 // |
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613 // No pending read, so add the message to the recv queue |
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614 // Right now, there is no limit on the recv queue. |
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615 // Need to check if we need to limit the number of messages to be queued up. |
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616 // |
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617 COstMessage* ostMessage = COstMessage::NewL(aMsg); |
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618 iRecvMessageQueue.Append(ostMessage); |
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619 } |
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620 |
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621 |
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622 |
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623 void CDbgTrcSrvSession::WriteComplete(TInt aErrCode) |
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624 { |
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625 LOG_MSG("CDbgTrcSrvSession::WriteComplete"); |
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626 |
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627 if (iPendingWrite && iBlockedWrite.Handle()) |
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628 { |
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629 LOG_MSG("Completing write request"); |
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630 |
|
631 SafeComplete(iBlockedWrite, aErrCode); |
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632 iPendingWrite = EFalse; |
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633 |
|
634 LOG_MSG("Completed write request"); |
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635 } |
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636 else |
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637 { |
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638 LOG_MSG("Invalid write message handle"); |
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639 } |
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640 } |
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641 |