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: Command handler for SSY <--> Sensor messages |
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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 #include <e32property.h> |
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20 #include "ssyreferencecmdhandler.h" |
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21 #include "ssyreferencecontrol.h" |
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22 #include "ssyreferencechannel.h" |
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23 #include "ssyreferencetrace.h" |
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24 |
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25 // ======== CONSTANTS ======== |
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26 const TInt KSsyRefShortDelay = 100; |
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27 |
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28 // ======== MEMBER FUNCTIONS ======== |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // CSsyReferenceCmdHandler C++ constructor |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 CSsyReferenceCmdHandler::CSsyReferenceCmdHandler( CSsyReferenceChannel& aSsyChannel ) : |
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35 CActive( EPriorityNormal ), |
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36 iSsyChannel( aSsyChannel ) |
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37 { |
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38 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::CSsyReferenceCmdHandler()" ) ) ); |
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39 CActiveScheduler::Add( this ); |
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40 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::CSsyReferenceCmdHandler() - return" ) ) ); |
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41 } |
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42 |
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43 |
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44 // --------------------------------------------------------------------------- |
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45 // Symbian 2nd phase constructor |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 void CSsyReferenceCmdHandler::ConstructL() |
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49 { |
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50 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ConstructL()" ) ) ); |
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51 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ConstructL() - return" ) ) ); |
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52 } |
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53 |
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54 |
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55 // --------------------------------------------------------------------------- |
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56 // CSsyReferenceCmdHandler::NewL |
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57 // --------------------------------------------------------------------------- |
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58 // |
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59 CSsyReferenceCmdHandler* CSsyReferenceCmdHandler::NewL( CSsyReferenceChannel& aSsyChannel ) |
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60 { |
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61 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::NewL()" ) ) ); |
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62 CSsyReferenceCmdHandler* self = new ( ELeave ) CSsyReferenceCmdHandler( aSsyChannel ); |
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63 CleanupStack::PushL( self ); |
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64 self->ConstructL(); |
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65 CleanupStack::Pop( self ); |
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66 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::NewL() - return" ) ) ); |
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67 return self; |
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68 } |
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69 |
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70 // --------------------------------------------------------------------------- |
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71 // Destructor |
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72 // --------------------------------------------------------------------------- |
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73 // |
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74 CSsyReferenceCmdHandler::~CSsyReferenceCmdHandler() |
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75 { |
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76 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::~CSsyReferenceCmdHandler()" ) ) ); |
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77 |
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78 if ( iMessage ) |
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79 { |
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80 // Send ProcessResponse |
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81 iMessage->SetError( KErrCancel ); |
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82 iSsyChannel.ProcessResponse( iMessage ); |
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83 delete iMessage; |
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84 iMessage = NULL; |
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85 } |
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86 |
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87 if ( iTimer ) |
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88 { |
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89 iTimer->Cancel(); |
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90 delete iTimer; |
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91 } |
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92 |
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93 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::~CSsyReferenceCmdHandler() - return" ) ) ); |
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94 } |
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95 |
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96 // --------------------------------------------------------------------------- |
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97 // CSsyReferenceCmdHandler::ProcessCommand |
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98 // --------------------------------------------------------------------------- |
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99 // |
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100 TInt CSsyReferenceCmdHandler::ProcessCommand( TSsyReferenceMsg aMessage ) |
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101 { |
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102 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ProcessCommand()" ) ) ); |
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103 TInt err( KErrAlreadyExists ); |
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104 |
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105 // Special case, when channel is reciving, iMessage is not deleted after ProcessCommand |
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106 if ( aMessage.Function() == ESsyReferenceStopChannelData ) |
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107 { |
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108 // Stop 'receiving'. No need to handle this asynchronously |
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109 if ( iTimer ) |
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110 { |
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111 iTimer->Cancel(); |
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112 delete iTimer; |
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113 iTimer = NULL; |
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114 } |
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115 |
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116 iDataItemArray.Reset(); |
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117 iDataItemPtr = 0; |
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118 err = KErrNone; |
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119 // No need to send ProcessResponse either |
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120 delete iMessage; |
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121 iMessage = NULL; |
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122 } |
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123 else if ( !iMessage ) |
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124 { |
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125 TRAP(err, iMessage = new ( ELeave ) TSsyReferenceMsg( aMessage )); |
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126 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ProcessCommand() - error %d creatig TSsyReferenceMsg" ), err ) ); |
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127 |
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128 switch( aMessage.Function() ) |
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129 { |
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130 case ESsyReferenceStartChannelData: |
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131 { |
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132 // Get channel data items and start 'receiving' |
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133 IssueRequest(); |
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134 err = KErrNone; |
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135 break; |
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136 } |
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137 case ESsyReferenceOpenChannel: |
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138 { |
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139 // Open channel specific handling here |
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140 IssueRequest(); |
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141 err = KErrNone; |
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142 break; |
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143 } |
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144 case ESsyReferenceCloseChannel: |
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145 { |
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146 // Close channel specific handling here |
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147 IssueRequest(); |
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148 err = KErrNone; |
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149 break; |
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150 } |
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151 default: |
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152 { |
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153 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ProcessCommand() - Unknown function" ) ) ); |
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154 err = KErrNotFound; |
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155 } |
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156 } |
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157 } |
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158 else |
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159 { |
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160 err = KErrUnknown; |
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161 } |
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162 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ProcessCommand() - return" ) ) ); |
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163 return err; |
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164 } |
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165 |
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166 // --------------------------------------------------------------------------- |
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167 // CSsyReferenceCmdHandler::IssueRequest |
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168 // --------------------------------------------------------------------------- |
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169 // |
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170 void CSsyReferenceCmdHandler::IssueRequest( TInt aError ) |
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171 { |
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172 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::IssueRequest()" ) ) ); |
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173 // Provides synchronous function calls to be handled as asynchronous |
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174 if ( !IsActive() ) |
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175 { |
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176 TRequestStatus *s = &iStatus; |
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177 User::RequestComplete( s, aError ); |
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178 SetActive(); |
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179 } |
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180 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::IssueRequest() - return" ) ) ); |
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181 } |
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182 |
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183 // --------------------------------------------------------------------------- |
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184 // CSsyReferenceCmdHandler::SendResponse |
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185 // --------------------------------------------------------------------------- |
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186 // |
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187 void CSsyReferenceCmdHandler::SendResponse( TInt aError ) |
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188 { |
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189 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::SendResponse()" ) ) ); |
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190 // Send response to channel |
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191 if ( iMessage ) |
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192 { |
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193 iMessage->SetError( aError ); |
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194 iSsyChannel.ProcessResponse( iMessage ); |
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195 delete iMessage; |
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196 iMessage = NULL; |
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197 } |
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198 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::SendResponse() - return" ) ) ); |
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199 } |
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200 |
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201 // --------------------------------------------------------------------------- |
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202 // CSsyReferenceCmdHandler::RunL |
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203 // --------------------------------------------------------------------------- |
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204 // |
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205 void CSsyReferenceCmdHandler::RunL() |
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206 { |
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207 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::RunL() - %i" ), iStatus.Int() ) ); |
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208 |
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209 TInt err( iStatus.Int() ); |
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210 |
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211 if ( iMessage ) |
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212 { |
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213 switch( iMessage->Function() ) |
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214 { |
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215 case ESsyReferenceStartChannelData: |
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216 { |
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217 TInt startInterval( 0 ); |
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218 |
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219 // Get all Channel data information from config file |
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220 iSsyChannel.SsyControl().SsyConfig(). |
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221 GetChannelDataInformationL( iMessage->ChannelId(), iDataItemArray, startInterval ); |
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222 |
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223 // Check that channel data items were found |
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224 if ( iDataItemArray.Count() ) |
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225 { |
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226 // If interval is zero, set small interval |
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227 if ( startInterval == 0 ) |
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228 { |
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229 startInterval = KSsyRefShortDelay; |
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230 } |
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231 |
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232 // wait that interval |
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233 if ( iTimer ) |
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234 { |
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235 iTimer->Cancel(); |
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236 delete iTimer; |
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237 iTimer = NULL; |
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238 } |
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239 |
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240 // Reset pointer |
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241 iDataItemPtr = 0; |
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242 |
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243 // Start timer and continue processing in callback function |
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244 iTimer = CPeriodic::NewL( EPriorityNormal ); |
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245 iTimer->Start( startInterval * 1000, 0, TCallBack( DataItemCallback, this ) ); |
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246 } |
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247 break; |
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248 } |
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249 case ESsyReferenceOpenChannel: |
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250 { |
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251 // Open channel response specific handling here |
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252 iMessage->SetFunction( ESsyReferenceOpenChannelResp ); |
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253 SendResponse(); |
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254 break; |
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255 } |
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256 case ESsyReferenceCloseChannel: |
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257 { |
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258 // Close channel response specific handling here |
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259 iMessage->SetFunction( ESsyReferenceCloseChannelResp ); |
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260 SendResponse(); |
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261 break; |
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262 } |
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263 default: |
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264 { |
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265 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::ProcessCommand() - Unknown function" ) ) ); |
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266 err = KErrNotFound; |
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267 } |
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268 } |
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269 } |
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270 |
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271 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::RunL() - return" ) ) ); |
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272 } |
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273 |
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274 // --------------------------------------------------------------------------- |
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275 // CSsyReferenceCmdHandler::DoCancel |
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276 // --------------------------------------------------------------------------- |
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277 // |
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278 void CSsyReferenceCmdHandler::DoCancel() |
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279 { |
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280 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::DoCancel()" ) ) ); |
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281 |
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282 // Handle cancel for this channel. Cancel any ongoing requests |
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283 |
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284 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::DoCancel() - return" ) ) ); |
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285 } |
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286 |
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287 // --------------------------------------------------------------------------- |
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288 // CSsyReferenceCmdHandler::RunError |
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289 // --------------------------------------------------------------------------- |
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290 // |
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291 TInt CSsyReferenceCmdHandler::RunError( TInt /*aError*/ ) |
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292 { |
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293 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::RunError()" ) ) ); |
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294 |
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295 // Handle possible errors here and return KErrNone to prevent SSY from panic |
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296 |
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297 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::RunError() - return" ) ) ); |
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298 return KErrNone; |
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299 } |
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300 |
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301 // --------------------------------------------------------------------------- |
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302 // CSsyReferenceCmdHandler::DataItemCallback |
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303 // --------------------------------------------------------------------------- |
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304 // |
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305 TInt CSsyReferenceCmdHandler::DataItemCallback( TAny* aThis ) |
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306 { |
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307 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::DataItemCallback()" ) ) ); |
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308 return static_cast<CSsyReferenceCmdHandler*>( aThis )->GenerateChannelDataItem(); |
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309 } |
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310 |
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311 // --------------------------------------------------------------------------- |
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312 // CSsyReferenceCmdHandler::GenerateChannelDataItem |
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313 // --------------------------------------------------------------------------- |
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314 // |
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315 TInt CSsyReferenceCmdHandler::GenerateChannelDataItem() |
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316 { |
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317 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::GenerateChannelDataItem()" ) ) ); |
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318 |
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319 // Get next item from list and set pointer to next item |
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320 TSsyRefChannelDataBase dataItem = iDataItemArray[iDataItemPtr++]; |
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321 |
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322 // Get next item interval from data item |
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323 TInt nextInterval( dataItem.Interval() ); |
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324 |
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325 // Set timestamp to data item |
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326 TTime time; |
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327 time.HomeTime(); |
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328 dataItem.SetTimestamp( time ); |
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329 |
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330 // If interval is zero, set small interval |
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331 if ( nextInterval == 0 ) |
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332 { |
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333 nextInterval = KSsyRefShortDelay; |
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334 } |
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335 |
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336 // Add data item to message |
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337 iMessage->SetDataItem( &dataItem ); |
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338 |
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339 // If in last data item, set pointer back to first item |
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340 if ( iDataItemArray.Count() == iDataItemPtr ) |
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341 { |
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342 iDataItemPtr = 0; |
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343 } |
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344 |
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345 // Send response and start new timer |
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346 iMessage->SetFunction( ESsyReferenceDataItemReceived ); |
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347 iSsyChannel.ProcessResponse( iMessage ); |
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348 |
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349 if ( iTimer ) |
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350 { |
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351 delete iTimer; |
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352 iTimer = NULL; |
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353 } |
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354 |
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355 TRAP_IGNORE( iTimer = CPeriodic::NewL( EPriorityNormal ); |
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356 iTimer->Start( nextInterval * 1000, 0, TCallBack( DataItemCallback, this ) ); ) |
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357 |
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358 COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceCmdHandler::GenerateChannelDataItem() - return" ) ) ); |
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359 return KErrNone; |
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360 } |
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361 |
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362 // End of file |
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