/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Converts asynchronous call to synchronous.

*

*/

#include "cphcntasynctosync.h"

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// Constructor

// ---------------------------------------------------------------------------

//

CPhCntAsyncToSync::CPhCntAsyncToSync()

    {

    }

// ---------------------------------------------------------------------------

// Second phase constructor.

// ---------------------------------------------------------------------------

//

void CPhCntAsyncToSync::BaseConstructL()

    {

    iWait = new( ELeave )CActiveSchedulerWait();

    }

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CPhCntAsyncToSync::~CPhCntAsyncToSync()

    {

    delete iWait;

    }

// ---------------------------------------------------------------------------

// Converts asyncrhonous call to synchronous.

// ---------------------------------------------------------------------------

//

TInt CPhCntAsyncToSync::MakeAsyncRequest()

    {

    iResponseReceived = EFalse;

	// Return KErrInUse, if iWait is active.

	TInt err( IsActive() ? KErrInUse : KErrNone );

	if ( !err )

		{

		TRAP( err, DoMakeAsyncRequestL() );

    	}

	if( !err )

        {

        // Check that response is not already received, we cannot 

        // start the scheduler if response is received, otherwise

        // scheduler waits forever.

        if( !iResponseReceived )

            {

            iWait->Start();

            }    

        err = iResponseError;

        }

    return err;

    }

// ---------------------------------------------------------------------------

// Indication that response has been received from async request.

// ---------------------------------------------------------------------------

//

void CPhCntAsyncToSync::ResponseReceived( TInt aErrorCode )

    {

    iResponseReceived = ETrue;

    iResponseError = aErrorCode;

    if( iWait->IsStarted() )

        {

        iWait->AsyncStop();

        }

    }

// ---------------------------------------------------------------------------

// Checks if there are pending asynchronous requests available.

// ---------------------------------------------------------------------------

//

TBool CPhCntAsyncToSync::IsActive()

    {

    return iWait->IsStarted();

    }