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1 /* |
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2 * Copyright (c) 2003 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: Notification of events |
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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 "ScardServer.h" |
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22 #include "ScardNotifier.h" |
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23 #include "WimTrace.h" |
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24 |
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25 // ============================ MEMBER FUNCTIONS =============================== |
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26 |
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27 // ----------------------------------------------------------------------------- |
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28 // CScardNotifier::CScardNotifier |
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29 // C++ default constructor can NOT contain any code, that |
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30 // might leave. |
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31 // ----------------------------------------------------------------------------- |
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32 // |
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33 CScardNotifier::CScardNotifier( |
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34 CScardNotifyRegistry* aRegistry, |
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35 RMessage2& aMessage, |
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36 TRequestStatus* aClientStatus, |
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37 const TReaderID& aReaderID ) |
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38 : CActive( EPriorityNormal ), |
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39 iRegistry( aRegistry ), |
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40 iMessage( aMessage ), |
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41 iClientStatus( aClientStatus ), |
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42 iReaderID( aReaderID ), |
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43 iMessageCompleted( EFalse ) |
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44 { |
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45 _WIMTRACE(_L("WIM|Scard|CScardNotifier::CScardNotifier|Begin")); |
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46 CActiveScheduler::Add( this ); |
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47 } |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CScardNotifier::ConstructL |
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51 // Symbian 2nd phase constructor can leave. |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 void CScardNotifier::ConstructL() |
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55 { |
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56 _WIMTRACE(_L("WIM|Scard|CScardNotifier::ConstructL|Begin")); |
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57 //if the notifier is regular, no need to activate the ActiveObject. |
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58 //since the notifier can only be used once and will be deleted after |
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59 //the one-time notification is done. |
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60 if(!iClientStatus) |
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61 { |
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62 iEventStack = new( ELeave ) CArrayFixFlat<TCardEvent>( 1 ); |
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63 iStatus = KRequestPending; |
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64 SetActive(); |
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65 } |
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66 } |
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67 |
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68 // ----------------------------------------------------------------------------- |
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69 // CScardNotifier::NewL |
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70 // Two-phased constructor. |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 CScardNotifier* CScardNotifier::NewL( |
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74 CScardNotifyRegistry* aRegistry, |
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75 RMessage2& aMessage, |
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76 TRequestStatus* aClientStatus, |
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77 const TReaderID& aReaderID ) |
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78 { |
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79 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NewL|Begin")); |
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80 CScardNotifier* self = new( ELeave ) CScardNotifier( |
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81 aRegistry, aMessage, aClientStatus, aReaderID ); |
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82 |
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83 CleanupStack::PushL( self ); |
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84 self->ConstructL(); |
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85 CleanupStack::Pop( self ); |
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86 |
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87 return self; |
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88 } |
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89 |
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90 |
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91 // Destructor |
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92 CScardNotifier::~CScardNotifier() |
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93 { |
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94 _WIMTRACE(_L("WIM|Scard|CScardNotifier::~CScardNotifier|Begin")); |
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95 if(!iClientStatus) |
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96 { |
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97 delete iEventStack; |
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98 Cancel(); |
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99 } |
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100 else |
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101 { |
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102 if ( !iMessageCompleted ) |
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103 { |
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104 iMessage.Complete( KErrNone ); |
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105 } |
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106 } |
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107 _WIMTRACE(_L("WIM|Scard|CScardNotifier::~CScardNotifier|End")); |
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108 } |
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109 |
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110 // ----------------------------------------------------------------------------- |
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111 // CScardNotifier::NotifyCardEvent |
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112 // Complete our own request, or if that's done already, store the event |
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113 // until it can be serviced... |
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114 // ----------------------------------------------------------------------------- |
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115 // |
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116 void CScardNotifier::NotifyCardEvent( |
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117 TScardServiceStatus aEvent, |
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118 TReaderID aReaderID ) |
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119 { |
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120 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NotifyCardEvent|Begin")); |
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121 |
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122 //regular notifier |
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123 if( iClientStatus ) |
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124 { |
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125 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NotifyCardEvent| a regular notifier")); |
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126 if(iMessageCompleted ) |
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127 { |
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128 return; |
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129 } |
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130 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NotifyCardEvent|iMessage not used")); |
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131 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NotifyCardEvent|Notify client")); |
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132 iMessage.Complete( aEvent ); |
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133 iMessageCompleted = ETrue; |
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134 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NotifyCardEvent|Notify client DONE")); |
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135 return; |
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136 } |
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137 |
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138 _WIMTRACE(_L("WIM|Scard|CScardNotifier::NotifyCardEvent| Server notifier")); |
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139 // No need to store the event, just notify it |
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140 if ( iStatus == KRequestPending ) |
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141 { |
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142 TUint code( 0 ); |
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143 |
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144 // If this is the server notifier, |
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145 // it needs a different event encoding |
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146 if ( !iClientStatus ) |
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147 { |
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148 // The server needs to know both the event code and |
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149 // the reader ID, because it listens to all readers |
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150 |
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151 // Place the reader ID in the higher bytes... |
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152 code = aReaderID; |
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153 code <<= 4; |
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154 // ...and the event code in the low 4 bytes |
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155 code |= aEvent; |
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156 } |
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157 TRequestStatus* sp = &iStatus; |
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158 User::RequestComplete( sp, code ); |
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159 } |
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160 // Well, previous notify hasn't finished, so store the event |
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161 else |
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162 { |
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163 TCardEvent event; |
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164 event.iEvent = aEvent; |
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165 event.iReaderID = aReaderID; |
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166 TRAPD( err, iEventStack->AppendL( event ) ); |
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167 |
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168 if ( err != KErrNone ) // No reason to continue |
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169 { |
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170 User::Panic( _L( "Memory allocation error" ), err ); |
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171 } |
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172 } |
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173 } |
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174 |
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175 // ----------------------------------------------------------------------------- |
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176 // CScardNotifier::RunL |
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177 // Asynchronous request has finished |
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178 // ----------------------------------------------------------------------------- |
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179 // |
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180 void CScardNotifier::RunL() |
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181 { |
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182 _WIMTRACE2(_L("WIM|Scard|CScardNotifier::RunL|Begin, iClientStatus=%d"), iClientStatus); |
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183 // if this is a regular notifier, |
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184 // then some thing goes wrong. |
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185 // only server notifier should come to RunL(). |
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186 if ( iClientStatus ) |
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187 { |
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188 _WIMTRACE(_L("WIM|Scard|CScardNotifier::RunL|Only server notifer will come to RunL")); |
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189 } |
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190 // Otherwise this is the server notifier, so tell the server |
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191 else |
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192 { |
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193 _WIMTRACE(_L("WIM|Scard|CScardNotifier::RunL|server notifer")); |
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194 // the bit-shifting that was done when notifying is now reversed |
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195 TScardServiceStatus event = static_cast< TScardServiceStatus > |
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196 ( iStatus.Int() & 0x0f ); |
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197 TReaderID readerID = static_cast< TReaderID >( iStatus.Int() >> 4 ); |
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198 iRegistry->Server()->CardEvent( event, readerID ); |
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199 _WIMTRACE(_L("WIM|Scard|CScardNotifier::RunL|Server notification DONE")); |
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200 } |
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201 iStatus = KRequestPending; |
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202 SetActive(); |
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203 |
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204 // If there are any queued events, notify (first one of) them now |
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205 if ( iEventStack->Count() ) |
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206 { |
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207 _WIMTRACE(_L("WIM|Scard|CScardNotifier::RunL| Some queued event in server notifier")); |
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208 iRegistry->NotifyCardEvent( iEventStack->At( 0 ).iEvent, |
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209 iEventStack->At( 0 ).iReaderID ); |
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210 iEventStack->Delete( 0 ); |
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211 } |
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212 _WIMTRACE(_L("WIM|Scard|CScardNotifier::RunL|Exit")); |
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213 } |
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214 |
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215 // ----------------------------------------------------------------------------- |
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216 // CScardNotifier::DoCancel |
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217 // Active object cancelled |
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218 // ----------------------------------------------------------------------------- |
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219 // |
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220 void CScardNotifier::DoCancel() |
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221 { |
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222 _WIMTRACE3(_L("WIM|Scard|CScardNotifier::DoCancel|Begin, status=%d"), |
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223 iStatus.Int(), iClientStatus ); |
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224 iRegistry->Cancel( iStatus ); |
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225 _WIMTRACE(_L("WIM|Scard|CScardNotifier::DoCancel|Cancel called")); |
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226 |
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227 // If message not already completed do it here |
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228 if ( !iMessageCompleted && iClientStatus ) |
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229 { |
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230 iMessage.Complete( KErrCancel ); |
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231 _WIMTRACE(_L("WIM|Scard|CScardNotifier::DoCancel|Message completed")); |
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232 } |
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233 |
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234 _WIMTRACE(_L("WIM|Scard|CScardNotifier::DoCancel|End")); |
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235 } |
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236 |
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237 // ----------------------------------------------------------------------------- |
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238 // CScardNotifier::ReaderID |
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239 // Return readerID |
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240 // ----------------------------------------------------------------------------- |
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241 // |
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242 TReaderID CScardNotifier::ReaderId() |
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243 { |
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244 return iReaderID; |
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245 } |
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246 // End of File |