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1 /* |
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2 * Copyright (c) 2002-2005 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: Session. |
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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 FILES |
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21 #include "CPhSrvServer.h" |
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22 #include "CPhSrvSession.h" |
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23 #include "CPhSrvSubSessionBase.h" |
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24 #include "PhSrvSubSessionFactory.h" |
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25 #include "PhCltClientServer.h" |
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26 |
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27 // CONSTANTS |
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28 |
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29 |
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30 |
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31 // ============================ MEMBER FUNCTIONS =============================== |
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32 |
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33 // ----------------------------------------------------------------------------- |
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34 // CPhSrvSession::NewL |
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35 // Two-phased constructor. |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 CPhSrvSession* CPhSrvSession::NewL( CPhSrvServer& aServer ) |
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39 { |
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40 CPhSrvSession* self = new ( ELeave ) CPhSrvSession(); |
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41 CleanupStack::PushL( self ); |
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42 self->ConstructL( aServer ); |
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43 CleanupStack::Pop(); |
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44 return self; |
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45 } |
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46 |
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47 |
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48 // ----------------------------------------------------------------------------- |
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49 // CPhSrvSession::CPhSrvSession |
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50 // C++ constructor can NOT contain any code, that might leave. |
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51 // ----------------------------------------------------------------------------- |
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52 // |
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53 CPhSrvSession::CPhSrvSession() |
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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 // ----------------------------------------------------------------------------- |
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59 // CPhSrvSession::~CPhSrvSession |
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60 // Destructor. |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 CPhSrvSession::~CPhSrvSession() |
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64 { |
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65 if ( iServer ) |
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66 { |
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67 iServer->CancelCreateAll( *this ); |
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68 } |
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69 |
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70 delete iObjectIx; |
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71 |
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72 if ( iContainer ) |
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73 { |
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74 iServer->RemoveContainer( iContainer ); |
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75 iContainer = NULL; |
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76 } |
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77 } |
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78 |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // CPhSrvSession::ServiceL |
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82 // |
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83 // Calls DispatchMessageL under trap harness. |
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84 // ----------------------------------------------------------------------------- |
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85 // |
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86 void CPhSrvSession::ServiceL( const RMessage2& aMessage ) |
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87 { |
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88 TRAPD( err, ProcessRequestL( aMessage ) ); |
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89 if ( err != KErrNone ) |
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90 { |
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91 aMessage.Complete( err ); |
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92 } |
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93 } |
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94 |
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95 |
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96 // ----------------------------------------------------------------------------- |
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97 // CPhSrvSession::ProcessRequestL |
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98 // |
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99 // Checks the function specified by the client message |
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100 // and depending on the type, performs an appropriate action. |
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101 // |
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102 // If the function is one of the "special" factory sub-session |
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103 // creation op-codes, then this session will process it. |
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104 // |
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105 // If the function is a generic subsession function, then the |
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106 // subsession which can handle this function is identified by |
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107 // it's unique handle, and it is asked to process the request. |
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108 // |
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109 // ----------------------------------------------------------------------------- |
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110 // |
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111 void CPhSrvSession::ProcessRequestL( const RMessage2& aMessage ) |
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112 { |
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113 if ( HandleCommandL( aMessage ) ) |
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114 { |
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115 return; |
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116 } |
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117 |
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118 const TInt function = aMessage.Function(); |
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119 const TUint32 sid = aMessage.SecureId().iId; |
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120 |
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121 // Is this a message that results in a new subsession? |
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122 if ( PhSrvSubSessionFactory::PhSrvSubSessionFactoryIsCreationFunction( |
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123 function ) ) |
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124 { |
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125 if ( !PhSrvSubSessionFactory::PhSrvSubSessionFactoryIsCreationAllowed( |
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126 function, |
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127 sid ) ) |
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128 { |
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129 aMessage.Complete( KErrPermissionDenied ); |
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130 } |
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131 else |
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132 { |
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133 // Need to create a new subsession |
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134 CPhSrvSubSessionBase* subSession = |
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135 PhSrvSubSessionFactory::PhSrvSubSessionFactoryCreateLC( |
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136 function, |
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137 *this ); |
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138 |
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139 // Add to container (takes ownership) |
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140 iContainer->AddL( subSession ); |
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141 if (function != EPhoneServerImageHandlerSubSessionOpen ) |
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142 { |
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143 CleanupStack::Pop( subSession ); |
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144 } |
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145 // Get a handle for the object |
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146 const TInt handle = iObjectIx->AddL( subSession ); |
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147 |
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148 // Inform client of the handle its been allocated |
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149 TPckg<TInt> handlePckg( handle ); |
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150 Write( |
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151 aMessage, |
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152 3, |
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153 handlePckg ); |
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154 |
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155 if ( !aMessage.IsNull() ) |
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156 { |
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157 // Complete the message |
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158 aMessage.Complete( KErrNone ); |
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159 } |
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160 } |
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161 } |
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162 else |
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163 { |
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164 // Find an appropriate object and pass the message to it |
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165 // for processing... |
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166 const TInt handle = aMessage.Int3(); |
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167 |
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168 // Fetch the sub-session by its handle |
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169 CObject* object = iObjectIx->At( handle ); |
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170 if ( !object ) |
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171 { |
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172 PanicClient( |
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173 aMessage, |
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174 EPhCltServerInitiatedPanicInvalidHandle ); |
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175 } |
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176 |
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177 // We can cast the object to a subsession instance, since that's |
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178 // all we store in the object container |
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179 CPhSrvSubSessionBase* subSession = |
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180 static_cast< CPhSrvSubSessionBase* >( object ); |
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181 |
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182 if ( subSession ) |
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183 { |
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184 // Check that the subsession can handle this request |
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185 if ( !subSession->PhSrvMessageDecoderCanProcessMessage( function ) ) |
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186 { |
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187 PanicClient( |
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188 aMessage, |
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189 EPhCltServerInitiatedPanicInvalidHandle ); |
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190 } |
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191 else |
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192 { |
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193 // Get it to process this request |
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194 subSession->PhSrvMessageProcessorHandleMessageL( aMessage ); |
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195 } |
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196 } |
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197 } |
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198 } |
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199 |
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200 |
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201 // ----------------------------------------------------------------------------- |
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202 // CPhSrvSession::SubSessionCount |
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203 // |
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204 // Return the number of subsessions |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 TInt CPhSrvSession::SubSessionCount() const |
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208 { |
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209 return iContainer->Count(); |
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210 } |
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211 |
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212 |
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213 // ----------------------------------------------------------------------------- |
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214 // CPhSrvSession::SubSessionA |
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215 // |
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216 // Return a subsession from an index |
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217 // ----------------------------------------------------------------------------- |
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218 // |
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219 CPhSrvSubSessionBase& CPhSrvSession::SubSessionAt( TInt aIndex ) const |
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220 { |
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221 return *static_cast< CPhSrvSubSessionBase* >( ( *iContainer )[ aIndex ] ); |
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222 } |
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223 |
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224 |
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225 // ----------------------------------------------------------------------------- |
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226 // CPhSrvSession::CloseSubsession |
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227 // |
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228 // Remove object from object index |
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229 // ----------------------------------------------------------------------------- |
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230 // |
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231 void CPhSrvSession::CloseSubSession( const RMessage2& aMessage ) |
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232 { |
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233 TInt handle = aMessage.Int3(); |
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234 |
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235 CObject* obj = iObjectIx->At( handle ); |
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236 __ASSERT_ALWAYS( obj, |
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237 PanicClient( |
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238 aMessage, |
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239 EPhCltServerInitiatedPanicInvalidHandle ) ); |
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240 iObjectIx->Remove( handle ); |
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241 |
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242 if ( !aMessage.IsNull() ) |
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243 { |
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244 aMessage.Complete( KErrNone ); |
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245 } |
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246 } |
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247 |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CPhSrvSession::PanicClient |
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251 // |
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252 // Panic the client's thread |
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253 // ----------------------------------------------------------------------------- |
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254 // |
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255 void CPhSrvSession::PanicClient( |
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256 const RMessage2& aMessage, |
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257 TPhCltServerInitiatedPanic aPanic ) const |
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258 { |
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259 if ( !aMessage.IsNull() ) |
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260 { |
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261 _LIT( KPhServerPanicCategory, "PhSrvServer" ); |
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262 aMessage.Panic( KPhServerPanicCategory, aPanic ); |
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263 } |
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264 } |
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265 |
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266 |
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267 // ----------------------------------------------------------------------------- |
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268 // CPhSrvSession::ConstructL |
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269 // |
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270 // Symbian OS 2nd phase constructor |
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271 // ----------------------------------------------------------------------------- |
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272 // |
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273 void CPhSrvSession::ConstructL( CPhSrvServer& aServer ) |
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274 { |
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275 iContainer = aServer.NewContainerL(); |
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276 iObjectIx = CObjectIx::NewL(); |
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277 |
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278 iServer = &aServer; |
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279 } |
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280 |
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281 |
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282 // ----------------------------------------------------------------------------- |
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283 // CPhSrvSession::SubSessionUniqueHandle |
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284 // |
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285 // Return the unique handle for the specified subsession |
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286 // ----------------------------------------------------------------------------- |
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287 // |
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288 TInt CPhSrvSession::SubSessionUniqueHandle( |
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289 const CPhSrvSubSessionBase& aSubSession ) const |
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290 { |
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291 // Ensure that the handle really is unique. |
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292 // return iObjectIx->At( &aSubSession ); is unique only in same session. |
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293 return reinterpret_cast<TInt>( &aSubSession ); |
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294 } |
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295 |
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296 |
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297 // ----------------------------------------------------------------------------- |
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298 // CPhSrvSession::PhoneServer |
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299 // |
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300 // Returns the Phone Server |
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301 // ----------------------------------------------------------------------------- |
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302 // |
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303 CPhSrvServer& CPhSrvSession::PhoneServer() const |
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304 { |
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305 return *static_cast< CPhSrvServer* >( const_cast< CServer2* >( Server() ) ); |
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306 } |
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307 |
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308 |
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309 // ----------------------------------------------------------------------------- |
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310 // CPhSrvSession::Write |
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311 // |
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312 // Write to the client address space. Panic client upon error |
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313 // ----------------------------------------------------------------------------- |
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314 // |
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315 void CPhSrvSession::Write( |
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316 const RMessage2& aMessage, |
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317 TInt aLocation, |
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318 const TDesC8& aDes, |
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319 TInt aOffset ) |
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320 { |
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321 TInt ret = aMessage.Write( aLocation, aDes, aOffset ); |
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322 if ( ret != KErrNone ) |
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323 { |
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324 PanicClient( |
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325 aMessage, |
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326 EPhCltServerInitiatedPanicBadDescriptor ); |
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327 } |
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328 } |
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329 |
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330 |
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331 // ----------------------------------------------------------------------------- |
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332 // CPhSrvSession::Read |
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333 // |
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334 // Read from the client address space. Panic client upon error |
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335 // ----------------------------------------------------------------------------- |
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336 // |
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337 void CPhSrvSession::Read( |
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338 const RMessage2& aMessage, |
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339 TInt aLocation, |
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340 TDes8& aDes, |
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341 TInt aOffset ) |
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342 { |
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343 TInt ret = aMessage.Read( aLocation, aDes, aOffset ); |
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344 if ( ret != KErrNone ) |
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345 { |
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346 PanicClient( |
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347 aMessage, |
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348 EPhCltServerInitiatedPanicBadDescriptor ); |
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349 } |
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350 } |
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351 |
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352 |
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353 // ----------------------------------------------------------------------------- |
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354 // CPhSrvSession::Read |
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355 // |
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356 // Read from the client address space. Panic client upon error |
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357 // ----------------------------------------------------------------------------- |
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358 // |
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359 void CPhSrvSession::Read( |
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360 const RMessage2& aMessage, |
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361 TInt aLocation, |
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362 TDes& aDes, |
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363 TInt aOffset ) |
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364 { |
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365 TInt ret = aMessage.Read( aLocation, aDes, aOffset ); |
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366 if ( ret != KErrNone ) |
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367 { |
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368 PanicClient( |
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369 aMessage, |
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370 EPhCltServerInitiatedPanicBadDescriptor ); |
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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 // ----------------------------------------------------------------------------- |
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376 // CPhSrvSession::CompleteCreateAll |
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377 // ----------------------------------------------------------------------------- |
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378 // |
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379 void CPhSrvSession::CompleteCreateAll( TInt aError ) |
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380 { |
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381 if ( iCreateAll ) |
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382 { |
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383 iCreateAll = EFalse; |
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384 iCreateAllMsg.Complete( aError ); |
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385 } |
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386 } |
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387 |
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388 |
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389 // ----------------------------------------------------------------------------- |
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390 // CPhSrvSession::HandleCommandL |
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391 // ----------------------------------------------------------------------------- |
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392 // |
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393 TBool CPhSrvSession::HandleCommandL( const RMessage2& aMessage ) |
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394 { |
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395 TBool result = EFalse; |
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396 |
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397 switch ( aMessage.Function() ) |
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398 { |
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399 case EPhoneCreateAll: |
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400 result = ETrue; |
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401 |
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402 iServer->CancelCreateAll( *this ); |
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403 iServer->CreateAllL( *this ); |
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404 |
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405 iCreateAll = ETrue; |
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406 iCreateAllMsg = aMessage; |
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407 break; |
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408 |
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409 default: |
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410 break; |
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411 } |
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412 |
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413 return result; |
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414 } |
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415 |
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416 |
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417 // End of File |