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1 /* |
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2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Implementation of BTEng server session handling |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include <e32base.h> |
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21 #include "btengsrvsession.h" |
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22 #include "btengserver.h" |
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23 #include "btengsrvbbconnectionmgr.h" |
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24 #include "btengpairman.h" |
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25 #include "btengclientserver.h" |
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26 #include "debug.h" |
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27 |
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28 |
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29 /** The message argument which holds the client event package. */ |
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30 const TInt KBTEngEventSlot = 2; |
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31 |
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32 // ======== MEMBER FUNCTIONS ======== |
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33 |
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34 // --------------------------------------------------------------------------- |
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35 // C++ default constructor |
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36 // --------------------------------------------------------------------------- |
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37 // |
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38 CBTEngSrvSession::CBTEngSrvSession() |
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39 : CSession2() |
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40 { |
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41 } |
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42 |
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43 |
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44 // --------------------------------------------------------------------------- |
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45 // Symbian 2nd-phase constructor |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 void CBTEngSrvSession::ConstructL() |
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49 { |
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50 TRACE_FUNC_ENTRY |
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51 |
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52 //create queue for storing multiple connection events |
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53 iConnectionEventQueue = new (ELeave) CDesC8ArraySeg(1); |
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54 } |
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55 |
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56 |
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57 // --------------------------------------------------------------------------- |
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58 // NewL |
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59 // --------------------------------------------------------------------------- |
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60 // |
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61 CBTEngSrvSession* CBTEngSrvSession::NewL() |
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62 { |
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63 CBTEngSrvSession* self = new( ELeave ) CBTEngSrvSession(); |
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64 CleanupStack::PushL( self ); |
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65 self->ConstructL(); |
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66 CleanupStack::Pop( self ); |
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67 return self; |
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68 } |
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69 |
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70 |
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71 // --------------------------------------------------------------------------- |
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72 // Destructor |
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73 // --------------------------------------------------------------------------- |
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74 // |
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75 CBTEngSrvSession::~CBTEngSrvSession() |
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76 { |
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77 TRACE_FUNC_ENTRY |
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78 if( !iNotifyConnMessage.IsNull() ) |
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79 { |
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80 iNotifyConnMessage.Complete( KErrCancel ); |
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81 } |
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82 CancelPairRequest(); |
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83 if( Server() ) |
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84 { |
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85 Server()->RemoveSession( iAutoSwitchOff ); |
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86 } |
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87 |
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88 delete iConnectionEventQueue; |
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89 |
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90 TRACE_FUNC_EXIT |
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91 } |
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92 |
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93 |
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94 // --------------------------------------------------------------------------- |
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95 // Complete the construction of the session. |
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96 // --------------------------------------------------------------------------- |
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97 // |
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98 void CBTEngSrvSession::CreateL() |
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99 { |
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100 TRACE_FUNC_ENTRY |
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101 Server()->AddSession(); |
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102 } |
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103 |
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104 |
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105 // --------------------------------------------------------------------------- |
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106 // Notify the client of the connection event. |
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107 // --------------------------------------------------------------------------- |
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108 // |
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109 void CBTEngSrvSession::NotifyConnectionEvent(const TBTDevAddr aAddr, |
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110 TBTEngConnectionStatus aConnStatus, RBTDevAddrArray* aArray, TInt aErr) |
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111 { |
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112 TRACE_FUNC_ENTRY |
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113 |
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114 TRACE_INFO((_L("[BTEng]\t Informing client %d"), iNotifyConnMessage.Handle())); |
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115 |
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116 //package up connection event to send to the client |
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117 TBTEngEventPkg pkg; |
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118 pkg().iAddr = aAddr; |
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119 pkg().iConnEvent = aConnStatus; |
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120 pkg().iConflictsBuf.Zero(); |
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121 if (aArray) |
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122 { |
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123 TBTDevAddrPckgBuf addr; |
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124 |
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125 for (TInt i = 0; i < aArray->Count(); i++) |
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126 { |
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127 addr = (*aArray)[i]; |
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128 pkg().iConflictsBuf.Append(addr); |
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129 } |
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130 } |
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131 |
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132 TInt err = KErrNotFound; |
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133 |
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134 //if a client message is outstanding |
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135 if (!iNotifyConnMessage.IsNull()) |
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136 { |
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137 //complete the message prioritising the main error |
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138 err = iNotifyConnMessage.Write(KBTEngEventSlot, pkg); |
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139 aErr = (aErr != KErrNone) ? aErr : err; |
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140 iNotifyConnMessage.Complete(aErr); |
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141 } |
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142 |
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143 //if there is no client message outstanding or the write failed |
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144 if (err != KErrNone) |
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145 { |
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146 //if the append fails we can't do anything with the error so ignore |
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147 //it and let the event get dropped |
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148 TRAP_IGNORE(iConnectionEventQueue->AppendL(pkg)); |
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149 } |
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150 } |
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151 |
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152 // --------------------------------------------------------------------------- |
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153 // Comfirm the caller if pairing request is completed in this invoke. |
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154 // --------------------------------------------------------------------------- |
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155 // |
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156 TInt CBTEngSrvSession::CompletePairRequest( TInt aResult ) |
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157 { |
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158 if ( !iPairMessage.IsNull()) |
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159 { |
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160 iPairMessage.Complete( aResult ); |
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161 return KErrNone; |
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162 } |
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163 return KErrNotFound; |
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164 } |
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165 |
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166 // --------------------------------------------------------------------------- |
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167 // From class CSession2 |
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168 // Handles servicing of a client request that has been passed to the server. |
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169 // --------------------------------------------------------------------------- |
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170 // |
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171 void CBTEngSrvSession::ServiceL( const RMessage2& aMessage ) |
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172 { |
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173 TRAPD( err, DispatchMessageL( aMessage ) ); |
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174 |
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175 if( !aMessage.IsNull() && |
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176 ( err || |
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177 ( aMessage.Function() != EBTEngNotifyConnectionEvents && |
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178 aMessage.Function() != EBTEngPairDevice ) ) ) |
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179 { |
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180 // Return the error code to the client. |
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181 aMessage.Complete( err ); |
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182 } |
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183 } |
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184 |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // Returns a handle to CBTEngServer. |
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188 // --------------------------------------------------------------------------- |
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189 // |
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190 CBTEngServer* CBTEngSrvSession::Server() |
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191 { |
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192 return (CBTEngServer*) CSession2::Server(); |
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193 } |
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194 |
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195 |
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196 // --------------------------------------------------------------------------- |
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197 // Handles a client request that has been passed to the server. |
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198 // --------------------------------------------------------------------------- |
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199 // |
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200 void CBTEngSrvSession::DispatchMessageL( const RMessage2& aMessage ) |
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201 { |
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202 TRACE_FUNC_ENTRY |
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203 TInt opcode = aMessage.Function(); |
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204 |
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205 switch( opcode ) |
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206 { |
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207 case EBTEngSetPowerState: |
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208 { |
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209 iAutoSwitchOff = (TBool) aMessage.Int1(); |
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210 Server()->SetPowerStateL( (TBTPowerStateValue) aMessage.Int0(), |
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211 iAutoSwitchOff ); |
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212 } |
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213 break; |
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214 case EBTEngSetVisibilityMode: |
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215 { |
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216 Server()->SetVisibilityModeL( (TBTVisibilityMode) aMessage.Int0(), |
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217 aMessage.Int1() ); |
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218 } |
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219 break; |
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220 case EBTEngNotifyConnectionEvents: |
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221 { |
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222 //ensure the message contains the correctly sized descriptor |
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223 if (aMessage.GetDesMaxLengthL(KBTEngEventSlot) != sizeof(TBTEngEventMsg)) |
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224 { |
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225 User::Leave(KErrBadDescriptor); |
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226 } |
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227 |
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228 if(!iNotifyConnMessage.IsNull()) |
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229 { |
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230 User::Leave(KErrInUse); |
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231 } |
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232 |
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233 //save the client message |
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234 iNotifyConnMessage = RMessage2(aMessage); |
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235 |
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236 //if there is an existing connection event that the client does |
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237 //not yet know about |
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238 if (iConnectionEventQueue->Count() > 0) |
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239 { |
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240 //complete straight away with package from queue |
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241 TInt err = iNotifyConnMessage.Write(KBTEngEventSlot, (*iConnectionEventQueue)[0]); |
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242 if (err == KErrNone) |
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243 { |
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244 iConnectionEventQueue->Delete(0); |
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245 } |
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246 iNotifyConnMessage.Complete(err); |
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247 } |
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248 } |
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249 break; |
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250 case EBTEngCancelEventNotifier: |
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251 { |
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252 if( !iNotifyConnMessage.IsNull() ) |
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253 { |
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254 iNotifyConnMessage.Complete( KErrCancel ); |
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255 } |
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256 } |
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257 break; |
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258 case EBTEngConnectDevice: |
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259 case EBTEngCancelConnectDevice: |
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260 case EBTEngDisconnectDevice: |
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261 case EBTEngIsDeviceConnected: |
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262 case EBTEngGetConnectedAddresses: |
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263 { |
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264 TBTPowerStateValue pwr = EBTPowerOff; |
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265 Server()->GetHwPowerState( pwr ); |
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266 if( pwr ) |
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267 { |
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268 // Simply forward it to the plug-in manager |
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269 Server()->DispatchPluginMessageL( aMessage ); |
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270 } |
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271 else |
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272 { |
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273 User::Leave( KErrNotReady ); |
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274 } |
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275 } |
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276 break; |
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277 case EBTEngIsDeviceConnectable: |
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278 { |
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279 Server()->DispatchPluginMessageL( aMessage ); |
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280 } |
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281 break; |
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282 case EBTEngPrepareDiscovery: |
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283 { |
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284 aMessage.Complete( KErrNone ); // Client does not have to wait. |
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285 Server()->iBBConnMgr->ManageTopology( ETrue ); |
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286 } |
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287 break; |
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288 case EBTEngSetPairingObserver: |
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289 case EBTEngPairDevice: |
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290 { |
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291 TBTPowerStateValue pwr = EBTPowerOff; |
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292 (void) Server()->GetHwPowerState( pwr ); |
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293 if( pwr ) |
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294 { |
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295 // Simply forward it to the pairing manager |
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296 Server()->PairManager().ProcessCommandL( aMessage ); |
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297 if ( opcode == EBTEngPairDevice ) |
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298 { |
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299 iPairMessage = RMessage2( aMessage ); |
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300 } |
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301 } |
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302 else |
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303 { |
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304 User::Leave( KErrNotReady ); |
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305 } |
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306 break; |
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307 } |
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308 case EBTEngCancelPairDevice: |
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309 { |
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310 CancelPairRequest(); |
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311 break; |
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312 } |
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313 default: |
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314 { |
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315 TRACE_INFO( ( _L( "[BTENG]\t DispatchMessageL: bad request (%d)" ), |
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316 aMessage.Function() ) ) |
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317 User::Leave( KErrArgument ); |
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318 } |
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319 break; |
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320 } |
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321 TRACE_FUNC_EXIT |
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322 } |
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323 |
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324 // --------------------------------------------------------------------------- |
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325 // Only the originator of pairing can cancel the pairing request. |
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326 // --------------------------------------------------------------------------- |
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327 // |
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328 void CBTEngSrvSession::CancelPairRequest() |
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329 { |
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330 if ( !iPairMessage.IsNull() ) |
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331 { |
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332 Server()->PairManager().CancelCommand( iPairMessage.Function() ); |
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333 iPairMessage.Complete( KErrCancel ); |
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334 } |
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335 } |