/** @file

* Copyright (c) 2005-2006 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:  

*

*/

#include "upnptcpsession.h"

#include "upnpretrywrite.h"

#ifdef _DEBUG

#define KLogFile _L("DLNAWebServer.txt")

#endif

#include "upnpcustomlog.h"

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

// CUpnpRetryWrite::NewL

//

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

//

CUpnpRetryWrite* CUpnpRetryWrite::NewL( CUpnpTcpSession& aSession, RSocket& aSocket, MUpnpRetryWriteObserver* aObserver, TThreadPriority aPriority )

    {

    CUpnpRetryWrite* self = new ( ELeave ) CUpnpRetryWrite( aSession, aSocket, aObserver, aPriority );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CUpnpRetryWrite::CUpnpRetryWrite

//

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

//

CUpnpRetryWrite::CUpnpRetryWrite( CUpnpTcpSession& aSession, RSocket& aSocket, MUpnpRetryWriteObserver* aObserver, TThreadPriority aPriority ):CActive( aPriority ),iSession( aSession ),iSocket( aSocket ),iObserver( aObserver ),iInternalState(EUnknown),iWriteErrorsCount(0)

    {

    }

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

// CUpnpRetryWrite::ConstructL

//

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

//	

void CUpnpRetryWrite::ConstructL()

    {

    CActiveScheduler::Add( this );

    User::LeaveIfError( iWriteTimer.CreateLocal() );   

    }

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

// CUpnpRetryWrite::~CUpnpRetryWrite

//

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

//

CUpnpRetryWrite::~CUpnpRetryWrite()

    {

    Cancel();

    iWriteTimer.Close();

    }

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

// CUpnpRetryWrite::IssueWriteRetry

//

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

//

void CUpnpRetryWrite::IssueWriteRetry()

    {

	iSession.WaitRetryError(iStatus.Int());

	iWriteTimer.After( iStatus, KWaitWithSocketWrite * ++iWriteErrorsCount );

	SetActive();

	iInternalState = EWaiting;

    }

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

// CUpnpRetryWrite::WriteToSocket

//

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

//

void CUpnpRetryWrite::WriteToSocket()

    {

	iSession.WaitRetryError(iStatus.Int(), ETrue);

	iSocket.Write( KNullDesC8, iStatus );

	SetActive();

	iInternalState = EWriting;

    }

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

// CUpnpRetryWrite::PassErrorToObserverL

//

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

//

void CUpnpRetryWrite::PassErrorToObserverL( TInt aError )

	{

	iInternalState = EUnknown;	

	iWriteErrorsCount = 0;

	iObserver->RetryWriteFailL( aError );

	}

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

// CUpnpRetryWrite::RunL

//

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

//	

void CUpnpRetryWrite::RunL()

    {

	if ( iStatus == KErrNone )

		{

		switch( iInternalState )

			{

			case EWaiting:

				WriteToSocket();

				break;

			case EWriting:

				iInternalState = EUnknown;	

				iWriteErrorsCount = 0;

				iObserver->RetryWriteSucceed();

				break;

			}

		}

	else

		{

		if( iInternalState == EWriting )

			{

			switch( iStatus.Int() )

				{

				case KErrNoMemory:

				case KErrNotReady:							

					if( iWriteErrorsCount < KWriteErrorsMax )

						{

						IssueWriteRetry();

						break;

						}							

				default:

					PassErrorToObserverL( iStatus.Int() );

					break;

				}

			}

        else

	    	{

    		if( iInternalState == EWaiting && iStatus.Int() == KErrAbort )

	    		{        		

        		iWriteTimer.After(iStatus,1);

        		iWriteErrorsCount++;

        		SetActive();

	    		}	

    		else

	    		PassErrorToObserverL( iStatus.Int() );

	    	}			

		}

    }

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

// CUpnpRetryWrite::DoCancel

//

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

//

void CUpnpRetryWrite::DoCancel()

    {

    iWriteErrorsCount = 0;

	iInternalState = EUnknown;

    }

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

// CUpnpRetryWrite::RunError

//

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

//

TInt CUpnpRetryWrite::RunError( TInt aError )

    {

    LOGS1("CUpnpRetryWrite::RunError(%d)", aError);

   	return KErrNone;

    }

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

// CUpnpRetryWrite::IsStarted

//

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

//

TBool CUpnpRetryWrite::IsStarted()

	{

	return (iInternalState != EUnknown);

	}