author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 23 Jun 2010 18:40:52 +0300 | |
changeset 32 | b12ea03c50a3 |
parent 0 | 667063e416a2 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: This is SUPL PSY location requestor |
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* |
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*/ |
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// INCLUDE FILES |
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#include <e32cmn.h> |
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#include <centralrepository.h> |
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#include <npppsyinternalcrkeys.h> |
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#include "suplpsyrequestor.h" |
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#include "suplpsygenericinfouser.h" |
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#include "suplpsylogging.h" |
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#include "suplpsypanic.h" |
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#include "suplpsy.hrh" |
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#include <epos_suplterminalconstants.h> |
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// ===================== == == == == AL FUNCTIONS =============================== |
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//Constants |
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const TInt KGenericInfoIncreaseStep = 1024; //1k |
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// ==================== == == == == BER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::CSuplPsyRequestor |
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// C++default constructor can NOT contain any code, that |
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// might leave. |
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// ----------------------------------------------------------------------------- |
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// |
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CSuplPsyRequestor::CSuplPsyRequestor( const TCallBack& aObserver ) |
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: CActive( EPriorityStandard ), |
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iObserver( aObserver ), |
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iFirstReq(ETrue), |
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iTtnfFlag(EFalse), |
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iPrevFixSuccess(EFalse) |
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{ |
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CActiveScheduler::Add( this ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::ConstructL |
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// Symbian 2nd phase constructor can leave. |
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// ----------------------------------------------------------------------------- |
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// |
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void CSuplPsyRequestor::ConstructL() |
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{ |
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TRACESTRING( "CSuplPsyRequestor::ConstructL start" ) |
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//Connect to SUPL server |
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User::LeaveIfError( iSuplServer.Connect() ); |
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//Construct iPositionInfo; |
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iPositionInfo = ConstructGenericInfoL(); |
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CRepository *iRepository = CRepository::NewL(KCRUidNppPsy); |
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//TInt keyValue; |
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TInt ret = iRepository->Get(KPSYTimeToNextFix, iTtnf); |
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delete iRepository; |
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iRepository = NULL; |
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TRACESTRING( "CSuplPsyRequestor::ConstructL end" ) |
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} |
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::ConstructGenericInfoL |
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// ----------------------------------------------------------------------------- |
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// |
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HPositionGenericInfo* CSuplPsyRequestor::ConstructGenericInfoL( |
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TInt aBufferSize ) const |
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{ |
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HPositionGenericInfo* positionInfo = HPositionGenericInfo::NewL( aBufferSize ); |
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//Set all requested fields |
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TInt count = SuplPsyGenericInfoUser::SupportedFieldsCount(); |
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for ( TInt i = 0; i < count; i++ ) |
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{ |
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positionInfo->SetRequestedField( |
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SuplPsyGenericInfoUser::SupportedFieldAt( i ) ); |
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} |
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return positionInfo; |
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} |
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::NewL |
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// Two - phased constructor. |
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// ----------------------------------------------------------------------------- |
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107 |
// |
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CSuplPsyRequestor* CSuplPsyRequestor::NewL( |
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const TCallBack& aObserver ) |
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110 |
{ |
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CSuplPsyRequestor* self = new( ELeave ) CSuplPsyRequestor( aObserver ); |
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112 |
|
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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CleanupStack::Pop( self ); |
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116 |
|
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return self; |
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} |
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119 |
|
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120 |
|
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121 |
// ----------------------------------------------------------------------------- |
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122 |
// CSuplPsyRequestor::~CSuplPsyRequestor |
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// Destructor |
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// ----------------------------------------------------------------------------- |
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125 |
// |
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CSuplPsyRequestor::~CSuplPsyRequestor() |
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127 |
{ |
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Cancel(); |
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iSuplSession.Close(); |
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iSuplServer.Close(); |
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delete iPositionInfo; |
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} |
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133 |
|
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134 |
|
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135 |
// ----------------------------------------------------------------------------- |
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136 |
// CSuplPsyRequestor::RunL |
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// ----------------------------------------------------------------------------- |
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138 |
// |
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139 |
void CSuplPsyRequestor::RunL() |
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140 |
{ |
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TRACESTRING2( "CSuplPsyRequestor::RunL status=%d", iStatus.Int() ) |
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142 |
//Call callback function |
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if ( iStatus.Int() >= KErrNone ) |
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144 |
{ |
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if (!iTtnfFlag) |
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146 |
{ |
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//Get position info |
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HPositionGenericInfo* posInfo = ConstructGenericInfoL(); |
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149 |
// Set module id |
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TPositionInfo* position = static_cast<TPositionInfo*> (posInfo ); |
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TUid implUid = { KSuplPsyImplUid }; |
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position->SetModuleId( implUid ); |
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153 |
|
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TRACESTRING( "Calling SUPL FW GetPosition ... " ) |
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iStatus = iSuplSession.GetPosition( *posInfo ); |
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156 |
|
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157 |
while ( iStatus.Int() == KErrPositionBufferOverflow ) |
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158 |
{ |
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//Not enough buffer allocated.Increase the buffer |
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TInt bufferSize = posInfo->BufferSize(); |
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delete posInfo; |
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posInfo = ConstructGenericInfoL( bufferSize + KGenericInfoIncreaseStep ); |
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iStatus = iSuplSession.GetPosition( *posInfo ); |
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164 |
} |
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165 |
|
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if ( iStatus.Int() >= KErrNone ) |
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167 |
{ |
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168 |
delete iPositionInfo; |
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169 |
iPositionInfo = posInfo; |
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170 |
|
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//Set module Id |
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172 |
iPositionInfo->SetModuleId( TUid::Uid( KSuplPsyImplUid ) ); |
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173 |
|
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174 |
//Set time |
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175 |
TPosition pos; |
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176 |
iPositionInfo->GetPosition( pos ); |
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177 |
TTime now; |
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178 |
now.UniversalTime(); |
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179 |
pos.SetTime( now ); |
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iPositionInfo->SetPosition( pos ); |
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181 |
iPrevFixSuccess = ETrue; |
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182 |
} |
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183 |
else |
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184 |
{ |
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delete posInfo; |
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iPrevFixSuccess = EFalse; |
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187 |
} |
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188 |
} |
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189 |
else |
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190 |
{ |
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191 |
iTtnfFlag = EFalse; |
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192 |
TRACESTRING( "Using previous position... " ) |
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193 |
} |
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194 |
} |
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195 |
iObserver.CallBack(); |
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196 |
TRACESTRING( "CSuplPsyRequestor::RunL end" ) |
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197 |
} |
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198 |
|
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199 |
// ----------------------------------------------------------------------------- |
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200 |
// CSuplPsyRequestor::DoCancel |
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201 |
// ----------------------------------------------------------------------------- |
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202 |
// |
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203 |
void CSuplPsyRequestor::DoCancel() |
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204 |
{ |
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205 |
if(iSuplSession.SubSessionHandle()) |
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206 |
{ |
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207 |
iSuplSession.CancelRunSession(); |
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208 |
} |
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209 |
} |
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210 |
|
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211 |
// ----------------------------------------------------------------------------- |
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212 |
// CSuplPsyRequestor::RunError |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CSuplPsyRequestor::RunError( TInt aError ) |
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{ |
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iStatus = aError; |
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iObserver.CallBack(); |
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return KErrNone; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::RequestLocation |
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// ----------------------------------------------------------------------------- |
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// |
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void CSuplPsyRequestor::RequestLocation() |
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{ |
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TRACESTRING( "CSuplPsyRequestor::RequestLocation start" ) |
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//Check if location request has been made already |
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if ( IsActive() ) |
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{ |
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return; |
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} |
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|
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// Check if the request is made withing TTNF, |
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// if so return the previous computed position |
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// if it was success |
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|
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if (!iFirstReq && iPrevFixSuccess) |
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if (IsRequestInTtnf()) |
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{ |
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iTtnfFlag = ETrue; |
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iStatus = KRequestPending; |
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SetActive(); |
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TRequestStatus* status = &iStatus; |
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User::RequestComplete( status, KErrNone ); |
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TRACESTRING( "Interval is within TTNF, returning. Returning Previous Position." ) |
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return; |
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} |
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|
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//Open SUPL session if needed |
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if ( iSuplSession.SubSessionHandle() == NULL ) |
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{ |
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TInt err = iSuplSession.Open( iSuplServer ); |
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|
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//If can't open session call RunL in next active scheduler round |
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if ( err != KErrNone ) |
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{ |
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iStatus = KRequestPending; |
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SetActive(); |
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TRequestStatus* status = &iStatus; |
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User::RequestComplete( status, err ); |
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TRACESTRING2( "Could not open subsession:%d", err ) |
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return; |
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} |
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} |
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|
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TRACESTRING( "Calling SUPL FW RunSession... " ) |
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//Make location request |
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iSuplSession.RunSession( iStatus, |
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KGpsSETAssisted | KAFLT | KECID | KEOTD | KOTDOA | KCID, 0, iFirstReq ); |
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if (iFirstReq) |
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{ |
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iFirstReq = EFalse; |
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} |
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SetActive(); |
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TRACESTRING( "CSuplPsyRequestor::RequestLocation end" ) |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::GetRequestResult |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CSuplPsyRequestor::GetRequestResult() |
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{ |
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return iStatus.Int(); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::GetLocation |
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// ----------------------------------------------------------------------------- |
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// |
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const HPositionGenericInfo& CSuplPsyRequestor::GetLocation() |
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{ |
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return *iPositionInfo; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CSuplPsyRequestor::ResetLastPosition |
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// ----------------------------------------------------------------------------- |
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// |
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void CSuplPsyRequestor::ResetLastPosition() |
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{ |
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// iPositionInfo->ClearPositionData(); |
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} |
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|
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TBool CSuplPsyRequestor::IsRequestInTtnf() |
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{ |
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309 |
|
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iTtnfFlag = EFalse; |
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|
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TTime now; |
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now.UniversalTime(); |
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314 |
|
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TInt diff = 1000000; |
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316 |
|
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TPosition pos; |
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318 |
|
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iPositionInfo->GetPosition( pos ); |
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320 |
|
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TTimeIntervalSeconds secs; |
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now.SecondsFrom(pos.Time(), secs); |
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diff = diff * secs.Int(); |
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TRACESTRING2( "Time diff. for request...:%d", diff ) |
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if (diff <= iTtnf) |
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return ETrue; |
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|
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return EFalse; |
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} |
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// End of File |