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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: Context session. |
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15 * |
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16 */ |
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17 |
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18 #include "ximpcontextsession.h" |
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19 #include "ximpsrvmessage.h" |
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20 #include "ximpserverdefs.h" |
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21 |
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22 #include "ximpcontexteventqueue.h" |
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23 #include "ximpcontexteventfilter.h" |
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24 #include "ximphostmanager.h" |
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25 #include "ximpglobals.h" |
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26 #include "ximppsccontextimp.h" |
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27 |
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28 #include "ximpfeatureinfoimp.h" |
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29 #include "ximpobjecthelpers.h" |
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30 #include "ximppanics.h" |
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31 #include "ximptrace.h" |
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32 #include "ximpoperationdefs.h" |
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33 #include "ximpoperationbase.h" |
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34 |
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35 #include "ximphoststates.h" |
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36 |
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37 #include <ximpbase.h> |
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38 #include <e32base.h> |
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39 |
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40 using namespace NXIMPSrv; |
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41 |
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42 |
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43 |
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44 // ============================ MEMBER FUNCTIONS ============================= |
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45 |
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46 // --------------------------------------------------------------------------- |
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47 // CXIMPContextSession::NewL() |
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48 // --------------------------------------------------------------------------- |
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49 // |
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50 CXIMPContextSession* CXIMPContextSession::NewL( TUint32 aSessionId ) |
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51 { |
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52 CXIMPContextSession* self = new( ELeave ) CXIMPContextSession(); |
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53 CleanupStack::PushL( self ); |
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54 self->ConstructL( aSessionId ); |
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55 CleanupStack::Pop( self ); |
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56 return self; |
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57 } |
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58 |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // CXIMPContextSession::~CXIMPContextSession() |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 CXIMPContextSession::~CXIMPContextSession() |
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65 { |
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66 TRACE_1( _L("CXIMPContextSession[%d]::~CXIMPContextSession()"), this ); |
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67 |
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68 delete iPreparedData; |
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69 |
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70 if( iEventListenScout ) |
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71 { |
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72 iEventListenScout->Complete( KErrCancel ); |
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73 delete iEventListenScout; |
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74 } |
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75 |
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76 iClientData->EventQueue().StopConsuming(); |
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77 |
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78 // Unbind when client has died, and unbind not send. |
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79 CXIMPOperationBase* operation = iClientData->GetCachedUnbind(); |
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80 |
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81 if( operation ) |
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82 { |
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83 TRAP_IGNORE( |
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84 { |
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85 CleanupStack::PushL( operation ); |
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86 iClientData->AppendToOpQueueL( operation ); |
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87 CleanupStack::Pop( operation ); |
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88 } ); |
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89 } |
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90 |
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91 iClientData->Close(); |
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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 // CXIMPContextSession::CXIMPContextSession() |
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97 // --------------------------------------------------------------------------- |
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98 // |
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99 CXIMPContextSession::CXIMPContextSession() |
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100 { |
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101 TRACE_1( _L("CXIMPContextSession[%d]::CXIMPContextSession()"), this ); |
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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 // CXIMPContextSession::ConstructL() |
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107 // ----------------------------------------------------------------------------- |
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108 // |
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109 void CXIMPContextSession::ConstructL( TUint32 aSessionId ) |
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110 { |
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111 iClientData = CXIMPPscContext::NewL( aSessionId ); |
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112 } |
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113 |
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114 |
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115 // ----------------------------------------------------------------------------- |
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116 // CXIMPContextSession::TryHandleMessageL() |
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117 // From MXIMPSrvSession |
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118 // ----------------------------------------------------------------------------- |
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119 // |
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120 void CXIMPContextSession::TryHandleMessageL( MXIMPSrvMessage& aMessage ) |
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121 { |
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122 switch( aMessage.Function() ) |
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123 { |
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124 //Asynchronous context operations related |
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125 case NRequest::ECtxSsQueueOperation: |
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126 { |
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127 DoQueueOperationL( aMessage ); |
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128 break; |
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129 } |
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130 //Asynchronous context operations related |
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131 case NRequest::ECtxSsQueueBindOperation: |
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132 { |
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133 DoQueueOperationL( aMessage ); |
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134 break; |
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135 } |
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136 |
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137 //Event handling related |
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138 case NRequest::ECtxSsInstallEventFilter: |
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139 { |
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140 DoInstallEventFilterL( aMessage ); |
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141 break; |
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142 } |
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143 |
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144 case NRequest::ECtxSsSetEventListenScout: |
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145 { |
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146 DoSetEventListenScoutL( aMessage ); |
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147 break; |
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148 } |
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149 |
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150 case NRequest::ECtxSsCancelEventListenScout: |
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151 { |
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152 DoCancelEventListenScout( aMessage ); |
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153 break; |
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154 } |
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155 |
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156 case NRequest::ECtxSsFetchTopEventDataSize: |
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157 { |
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158 DoFetchTopEventDataSizeL( aMessage ); |
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159 break; |
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160 } |
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161 |
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162 case NRequest::ECtxSsFetchTopEventData: |
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163 { |
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164 DoFetchTopEventDataL( aMessage ); |
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165 break; |
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166 } |
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167 |
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168 case NRequest::ECtxSsFetchTopEventReqId: |
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169 { |
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170 DoFetchTopEventReqIdL( aMessage ); |
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171 break; |
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172 } |
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173 |
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174 case NRequest::ECtxSsDropTopEvent: |
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175 { |
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176 DoDropTopEventL( aMessage ); |
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177 break; |
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178 } |
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179 |
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180 //Synchronous context data access |
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181 case NRequest::ECtxSsPrepareContextFeatures: |
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182 { |
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183 DoPrepareContextFeaturesL( aMessage ); |
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184 break; |
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185 } |
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186 |
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187 case NRequest::ECtxSsGetPreparedData: |
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188 { |
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189 DoGetPreparedDataL( aMessage ); |
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190 break; |
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191 } |
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192 |
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193 default: |
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194 { |
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195 //Unknown request type |
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196 //Nothing to do here. |
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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 // ----------------------------------------------------------------------------- |
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203 // CXIMPContextSession::NewEventAvailable() |
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204 // From MXIMPEventQueueObserver |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 void CXIMPContextSession::NewEventAvailable() |
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208 { |
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209 if( iEventListenScout ) |
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210 { |
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211 iEventListenScout->Complete( KErrNone ); |
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212 delete iEventListenScout; |
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213 iEventListenScout = NULL; |
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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 // ----------------------------------------------------------------------------- |
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219 // CXIMPContextSession::DoQueueOperationL() |
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220 // ----------------------------------------------------------------------------- |
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221 // |
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222 void CXIMPContextSession::DoQueueOperationL( |
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223 MXIMPSrvMessage& aMessage ) |
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224 { |
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225 const TInt operationType = aMessage.Int( MXIMPSrvMessage::Ep0 ); |
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226 |
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227 TPckgBuf< TXIMPRequestId > reqIdBuf; |
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228 |
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229 // We can take ready unbind from context if it exists. |
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230 CXIMPOperationBase* operation = NULL; |
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231 if( operationType == NXIMPOps::EXIMPUnbindContext ) |
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232 { |
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233 operation = iClientData->GetCachedUnbind(); |
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234 // ownership transferred |
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235 } |
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236 |
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237 if( operation ) |
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238 { |
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239 // found an unbind, so put it to the queue to be processed |
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240 CleanupStack::PushL( operation ); |
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241 iClientData->AppendToOpQueueL( operation ); |
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242 reqIdBuf() = operation->RequestId(); |
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243 CleanupStack::Pop( operation ); |
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244 } |
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245 else |
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246 { |
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247 const TInt pckSize = aMessage.GetDesLengthL( MXIMPSrvMessage::Ep1 ); |
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248 HBufC8* paramPck = HBufC8::NewLC( pckSize ); |
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249 TPtr8 paramPckPtr = paramPck->Des(); |
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250 aMessage.ReadL( MXIMPSrvMessage::Ep1, paramPckPtr ); |
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251 reqIdBuf() = iClientData->AddNewOperationL( operationType, |
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252 *paramPck ); |
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253 CleanupStack::PopAndDestroy( paramPck ); |
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254 } |
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255 |
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256 aMessage.WriteL( MXIMPSrvMessage::Ep2, reqIdBuf ); |
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257 aMessage.Complete( KErrNone ); |
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258 } |
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259 |
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260 |
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261 // ----------------------------------------------------------------------------- |
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262 // CXIMPContextSession::DoInstallEventFilterL() |
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263 // ----------------------------------------------------------------------------- |
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264 // |
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265 void CXIMPContextSession::DoInstallEventFilterL( |
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266 MXIMPSrvMessage& aMessage ) |
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267 { |
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268 const TInt pckSize = aMessage.GetDesLengthL( MXIMPSrvMessage::Ep0 ); |
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269 HBufC8* filterPck = HBufC8::NewLC( pckSize ); |
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270 TPtr8 filterPckPtr( filterPck->Des() ); |
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271 aMessage.ReadL( MXIMPSrvMessage::Ep0, filterPckPtr ); |
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272 |
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273 CXIMPContextEventFilter* newFilter = CXIMPContextEventFilter::NewLC(); |
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274 TXIMPObjectPacker< CXIMPContextEventFilter >::UnPackL( *newFilter, |
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275 *filterPck ); |
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276 |
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277 iClientData->EventQueue().SetEventFilter( *newFilter ); |
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278 CleanupStack::Pop( newFilter ); |
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279 CleanupStack::PopAndDestroy( filterPck ); |
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280 |
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281 aMessage.Complete( KErrNone ); |
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282 } |
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283 |
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284 |
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285 // ----------------------------------------------------------------------------- |
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286 // CXIMPContextSession::DoSetEventListenScoutL() |
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287 // ----------------------------------------------------------------------------- |
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288 // |
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289 void CXIMPContextSession::DoSetEventListenScoutL( |
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290 MXIMPSrvMessage& aMessage ) |
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291 { |
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292 __ASSERT_ALWAYS( !iEventListenScout, |
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293 aMessage.PanicClientAndLeaveL( |
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294 NXIMPPanic::EOnSrvAlreadyListeningEvents ) ); |
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295 |
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296 iClientData->EventQueue().StartConsuming( *this ); |
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297 |
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298 //If there is already a events in que, |
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299 //signal client right a way |
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300 if( iClientData->EventQueue().HasElements() ) |
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301 { |
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302 aMessage.Complete( KErrNone ); |
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303 } |
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304 else |
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305 { |
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306 aMessage.PlaceOwnershipHere( iEventListenScout ); |
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307 } |
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308 } |
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309 |
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310 |
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311 // ----------------------------------------------------------------------------- |
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312 // CXIMPContextSession::DoCancelEventListenScout() |
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313 // ----------------------------------------------------------------------------- |
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314 // |
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315 void CXIMPContextSession::DoCancelEventListenScout( |
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316 MXIMPSrvMessage& aMessage ) |
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317 { |
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318 if( iEventListenScout ) |
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319 { |
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320 iEventListenScout->Complete( KErrCancel ); |
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321 delete iEventListenScout; |
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322 iEventListenScout = NULL; |
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323 } |
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324 |
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325 iClientData->EventQueue().StopConsuming(); |
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326 aMessage.Complete( KErrNone ); |
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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 // CXIMPContextSession::DoFetchTopEventDataSizeL() |
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332 // ----------------------------------------------------------------------------- |
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333 // |
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334 void CXIMPContextSession::DoFetchTopEventDataSizeL( |
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335 MXIMPSrvMessage& aMessage ) |
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336 { |
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337 iClientData->EventQueue().SelectTopEventIfNeededL(); |
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338 aMessage.Complete( iClientData->EventQueue().TopEventDataL().Size() ); |
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339 } |
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340 |
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341 |
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342 // ----------------------------------------------------------------------------- |
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343 // CXIMPContextSession::DoFetchTopEventDataL() |
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344 // ----------------------------------------------------------------------------- |
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345 // |
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346 void CXIMPContextSession::DoFetchTopEventDataL( |
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347 MXIMPSrvMessage& aMessage ) |
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348 { |
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349 iClientData->EventQueue().SelectTopEventIfNeededL(); |
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350 aMessage.WriteL( MXIMPSrvMessage::Ep0, iClientData->EventQueue().TopEventDataL() ); |
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351 aMessage.Complete( KErrNone ); |
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352 } |
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353 |
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354 |
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355 // ----------------------------------------------------------------------------- |
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356 // CXIMPContextSession::DoFetchTopEventReqIdL() |
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357 // ----------------------------------------------------------------------------- |
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358 // |
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359 void CXIMPContextSession::DoFetchTopEventReqIdL( |
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360 MXIMPSrvMessage& aMessage ) |
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361 { |
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362 TPckgBuf< TXIMPRequestId > reqIdBuf; |
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363 |
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364 iClientData->EventQueue().SelectTopEventIfNeededL(); |
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365 reqIdBuf() = iClientData->EventQueue().TopEventReqIdL(); |
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366 |
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367 aMessage.WriteL( MXIMPSrvMessage::Ep0, reqIdBuf ); |
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368 aMessage.Complete( KErrNone ); |
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369 } |
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370 |
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371 |
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372 // ----------------------------------------------------------------------------- |
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373 // CXIMPContextSession::DoDropTopEventL() |
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374 // ----------------------------------------------------------------------------- |
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375 // |
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376 void CXIMPContextSession::DoDropTopEventL( |
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377 MXIMPSrvMessage& aMessage ) |
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378 { |
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379 iClientData->EventQueue().DropTopEvent(); |
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380 aMessage.Complete( KErrNone ); |
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381 } |
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382 |
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383 |
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384 // ----------------------------------------------------------------------------- |
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385 // CXIMPContextSession::DoPrepareContextFeaturesL() |
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386 // ----------------------------------------------------------------------------- |
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387 // |
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388 void CXIMPContextSession::DoPrepareContextFeaturesL( |
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389 MXIMPSrvMessage& aMessage ) |
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390 { |
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391 __ASSERT_ALWAYS( !iPreparedData, |
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392 aMessage.PanicClientAndLeaveL( |
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393 NXIMPPanic::EOnSrvAlreadyHavingPrepearedData ) ); |
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394 |
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395 |
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396 CXIMPFeatureInfoImp* feats = iClientData->FeaturesForSessionLC(); |
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397 iPreparedData = TXIMPObjectPacker< CXIMPFeatureInfoImp >::PackL( *feats ); |
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398 CleanupStack::PopAndDestroy( feats ); |
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399 |
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400 aMessage.Complete( iPreparedData->Size() ); |
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401 } |
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402 |
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403 |
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404 // ----------------------------------------------------------------------------- |
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405 // CXIMPContextSession::DoGetPreparedDataL() |
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406 // ----------------------------------------------------------------------------- |
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407 // |
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408 void CXIMPContextSession::DoGetPreparedDataL( |
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409 MXIMPSrvMessage& aMessage ) |
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410 { |
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411 //Release the prepared data from member variable |
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412 //Buffer gets cleaned even the copying to client side fails |
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413 HBufC8* tmpBuf = iPreparedData; |
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414 iPreparedData = NULL; |
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415 CleanupStack::PushL( tmpBuf ); |
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416 |
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417 //Assert that there is a data to copy to client |
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418 __ASSERT_ALWAYS( tmpBuf, |
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419 aMessage.PanicClientAndLeaveL( |
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420 NXIMPPanic::EOnSrvNoPrepearedDataToCopy ) ); |
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421 |
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422 aMessage.WriteL( MXIMPSrvMessage::Ep0, *tmpBuf ); |
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423 |
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424 CleanupStack::PopAndDestroy( tmpBuf ); |
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425 aMessage.Complete( KErrNone ); |
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426 } |
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427 |
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428 |
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429 // End of file |