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/*
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* Copyright (c) 2005-2009 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:
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*
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*/
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/*************************************************************************
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*
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* System Includes
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*
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*************************************************************************/
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/*************************************************************************
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*
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* Local Includes
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*
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*************************************************************************/
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#include "assert.h"
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#include "stat.h"
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#include "stat_interfaces.h"
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#include "stat_controller.h"
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#include "stat_engine.h"
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/*************************************************************************
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*
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* Definitions
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*
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*************************************************************************/
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/*************************************************************************
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*
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* CStatController - Construction
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*
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*************************************************************************/
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CStatController *CStatController::NewL()
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{
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CStatController *self = new (ELeave) CStatController();
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop();
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return self;
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}
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CStatController::CStatController() : CActive(EPriorityHigh), iFs( NULL ), iMsg( NULL )
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{
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}
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void CStatController::ConstructL( void )
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{
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// add me to the active scheduler
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CActiveScheduler::Add(this);
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// params
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iEngine = NULL;
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iSessionStatus = EIdle;
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iTransport = NULL;
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iUI = NULL;
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iConnectedSuccessfully = EFalse;
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iUserInitiatedExitRequest = EFalse;
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iFs = NULL;
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iMsg = NULL;
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// wait for notifications
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iStatus = KRequestPending;
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SetActive();
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}
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CStatController::~CStatController()
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{
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// clear notification -- deque (and CActive destructor) will fail otherwise
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Notify( KErrCancel );
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Deque();
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// make sure the session is closed
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asserte( iSessionStatus == EIdle );
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asserte( iEngine == NULL );
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asserte( iTransport == NULL );
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}
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/*************************************************************************
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*
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* CStatController - public interface
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*
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*************************************************************************/
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TInt CStatController::StartSession( TStatConnectType aConnectType, TDesC *aConnectParams, MNotifyUI *aUI, RFs *const aSession, MNotifyLogMessage *const aMsg )
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{
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TInt exp = KErrNone;
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iFs = aSession;
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iMsg = aMsg;
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if(!aConnectParams) {
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return -1;
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}
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// this is the notification sink for this session
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iUI = aUI;
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iConnectType = aConnectType;
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asserte( aConnectParams->Length() <= KAddressTextLimit );
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iConnectParams.Copy( *aConnectParams );
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// create the engine with a callback interface to the controller, create the
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// appropriate transport, and start the engine
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iConnectedSuccessfully = EFalse;
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TRAP( exp, (iEngine = CStatEngine::NewL(this, iFs, iMsg)) );
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if( exp != KErrNone ) {
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return -1;
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}
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// if the start transport leaves then its because it failed to create an object. This
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// is either because the network or transport creation failed left. If it was the
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// transport then the network may still have memory allocated.
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TRAP( exp, (iTransport = StartTransportL(iConnectType)) );
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if( exp != KErrNone ) {
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if( iSerialNetwork != NULL ) {
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delete iSerialNetwork;
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}
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return -1;
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}
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iEngine->StartEngine( iTransport, iConnectType, &iConnectParams );
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// this controller only supports one session which always has ID = 1
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return 1;
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}
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TInt CStatController::StopSession( TInt aSessionId )
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{
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// make sure this is a valid, active, session
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if( (aSessionId != 1) || (iSessionStatus == EIdle) )
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{
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// If the session is valid and idle then it is not
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// initialised and connected correctly.
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// Call Notify to cancel the outstanding asynchronous events
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// we are registered for.
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// This fixes a problem that appears when the engine fails to
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// start correctly (due to COM port failures for example) and
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// caused the CActiveScheduler never to stop as this object
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// never received a callback when it needs one to remove
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// itself from the active state.
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// If the CActiveScheduler does not shut down then the
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// program never exits and blocks.
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Notify( KErrNone );
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//
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return KErrBadHandle;
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}
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iMsg->Msg( _L("CONTROLLER: Stopping session.") );
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// tell the engine to stop and then wait for an asynchronous response
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iUserInitiatedExitRequest = ETrue;
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iEngine->StopEngine();
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return KErrNone;
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}
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TInt CStatController::SessionStatus( TInt aSessionId )
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{
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if( aSessionId != 1 )
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return KErrBadHandle;
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return iSessionStatus;
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}
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void CStatController::SetStatus( TCommStatus aNewStatus )
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{
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iSessionStatus = aNewStatus;
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if( iUI != NULL )
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iUI->HandleStatusChange( 1, iSessionStatus );
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if( aNewStatus == EConnected )
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iConnectedSuccessfully = ETrue;
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}
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/*************************************************************************
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*
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* CStatController - MNotifyStatController
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*
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*************************************************************************/
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void CStatController::HandleStatusChange( TCommStatus aNewStatus )
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{
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// If the engine has gone idle then everything is done and we can kill
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// everything off. But, this function was called by the engine, so we
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// can't kill it here -- send self an event to clean things up.
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if( aNewStatus == EIdle ) {
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Notify( KErrNone );
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return;
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}
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// update the status
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SetStatus( aNewStatus );
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}
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// The engine deals with the transports in the face of errors itself, and the
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// interaction with the engine is really handled via HandleStatusChange. This
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// function is mainly here to be able to pass information up from the transport
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// and the engine to the UI / user
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void CStatController::HandleError( TInt aError, void *aErrorData )
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{
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if( iUI != NULL )
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iUI->HandleError( aError, aErrorData );
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}
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// Info is for end-user consumption only and is sent directly to the UI.
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void CStatController::HandleInfo( const TDesC *aInfo )
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{
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if( iUI != NULL )
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iUI->HandleInfo( aInfo );
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}
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/*************************************************************************
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*
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* CStatController - CActive
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*
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*************************************************************************/
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void CStatController::RunL()
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{
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// delete the engine and the transport
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delete iEngine;
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iEngine = NULL;
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KillTransport();
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// now change the status to idle
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SetStatus( EIdle );
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// wait again
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iStatus = KRequestPending;
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SetActive();
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// But if this wasn't a user requested exit -- and the last connection
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// did connect successfully, then restart. Otherwise clear the flags.
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if( (iConnectedSuccessfully) && (!iUserInitiatedExitRequest) ) {
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iConnectedSuccessfully = EFalse;
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iEngine = CStatEngine::NewL( this, iFs, iMsg );
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iTransport = StartTransportL( iConnectType );
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iEngine->StartEngine( iTransport, iConnectType, &iConnectParams );
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} else {
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iUserInitiatedExitRequest = EFalse;
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iConnectedSuccessfully = EFalse;
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}
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}
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void CStatController::DoCancel()
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{
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}
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void CStatController::Notify( TInt aErrorStatus )
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{
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TRequestStatus *pstatus;
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pstatus = &iStatus;
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TRequestStatus *&rstatus = pstatus;
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User::RequestComplete( rstatus, aErrorStatus );
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}
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/*************************************************************************
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*
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* CStatController - Private
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*
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*************************************************************************/
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MStatApiTransport *CStatController::StartTransportL( TStatConnectType aConnectType )
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{
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switch( aConnectType ) {
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#ifndef LIGHT_MODE
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case ETCPIP:
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iTcpipTransport = CStatTransportTCPIP::NewL( );
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iPacketisationTransport = CStatTransportPacketisation::NewL( iEngine, iTcpipTransport, iTcpipTransport->GetPacketSize() );
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return iPacketisationTransport;
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case EInfrared:
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iSerialNetwork = CStatApiSerial::NewL( _L("IrCOMM") );
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iPacketisationTransport = CStatTransportPacketisation::NewL( iEngine, iSerialNetwork, iSerialNetwork->GetPacketSize() );
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return iPacketisationTransport;
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case EBluetooth:
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iBluetoothTransport = CStatTransportBT::NewL();
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iPacketisationTransport = CStatTransportPacketisation::NewL( iEngine, iBluetoothTransport, iBluetoothTransport->GetPacketSize() );
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return iPacketisationTransport;
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case EUsb:
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iUsbNetwork = CStatApiUsb::NewL();
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iPacketisationTransport = CStatTransportPacketisation::NewL( iEngine, iUsbNetwork, iUsbNetwork->GetPacketSize() );
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return iPacketisationTransport;
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#endif // ifndef LIGHT_MODE
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case ESerial:
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iSerialNetwork = CStatApiSerial::NewL( _L("ECUART") );
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iPacketisationTransport = CStatTransportPacketisation::NewL( iEngine, iSerialNetwork, iSerialNetwork->GetPacketSize() );
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return iPacketisationTransport;
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default:
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;
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}
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return NULL;
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}
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void CStatController::KillTransport()
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{
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switch( iConnectType ) {
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#ifndef LIGHT_MODE
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case ETCPIP:
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delete iTcpipTransport;
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delete iPacketisationTransport;
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iPacketisationTransport = NULL;
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iTcpipTransport = NULL;
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break;
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case EBluetooth:
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delete iBluetoothTransport;
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delete iPacketisationTransport;
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iBluetoothTransport = NULL;
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iPacketisationTransport = NULL;
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break;
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case EInfrared:
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delete iSerialNetwork;
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delete iPacketisationTransport;
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iSerialNetwork = NULL;
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iPacketisationTransport = NULL;
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break;
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#endif // ifndef LIGHT_MODE
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case ESerial:
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delete iSerialNetwork;
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delete iPacketisationTransport;
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iSerialNetwork = NULL;
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iPacketisationTransport = NULL;
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break;
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default:
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;
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}
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iTransport = NULL;
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}
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