// Copyright (c) 2007-2010 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:

// Trace Core media plugin

//

#include "TraceCoreMediaPlugin.h"

#include "TraceCorePluginIf.h" 

#include "TraceCore.h"

#include "TraceCoreSendReceive.h"

#include "TraceCoreMessageUtils.h"

#include "OstTraceDefinitions.h"

#include "TraceCoreSubscriber.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "TraceCoreMediaPluginTraces.h"

#endif

/**

 * Constructor

 */

EXPORT_C DTraceCoreMediaPlugin::DTraceCoreMediaPlugin()

    {

    }

/**

 * Destructor

 */

EXPORT_C DTraceCoreMediaPlugin::~DTraceCoreMediaPlugin()

    {

    Unregister();

    }

/**

 * Registers this plug-in to TraceCore

 */

EXPORT_C TInt DTraceCoreMediaPlugin::Register()

    {

    TInt ret = KErrNone;

    // Get TraceCore

    DTraceCore* traceCore = DTraceCore::GetInstance();

    if ( traceCore != NULL )

        {

        // Get TraceCore Plugin interface and register this as a plugin

        DTraceCorePluginIf* media = traceCore->GetSendReceive().GetPluginIf();

        if ( media != NULL )

            {

            ret = media->RegisterPlugin( *this );

            }

        else

            {

            ret = KErrGeneral;

            }

        }

    else

        {

        ret = KErrGeneral;

        }

    OstTrace1( TRACE_BORDER, DTRACECOREMEDIAPLUGIN_REGISTER_EXIT, "< DTraceCoreMediaPlugin::Register. Ret:%d", ret );

    return ret;

    }

/**

 * Called by the plug-in to notify TraceCore that message was received

 * 

 * @param aMsg The message that was received

 */

EXPORT_C void DTraceCoreMediaPlugin::MessageReceived( TTraceMessage &aMsg )

    {

    OstTraceExt1( TRACE_BORDER, DTRACECOREMEDIAPLUGIN_MESSAGERECEIVED_ENTRY, "> DTraceCoreMediaPlugin::MessageReceived. MsgId:0x%hhx", aMsg.iMessageId );

    DTraceCore* traceCore = DTraceCore::GetInstance();

    if ( traceCore != NULL )

        {

        DTraceCorePluginIf* media = traceCore->GetSendReceive().GetPluginIf();

        if ( media != NULL )

            {

            media->MessageReceived( aMsg );

            }

        }

    }

/**

 * Merges the header and data into a single buffer

 * 

 * @param aMsg Message to be sent.

 * @param aMsgBlock The message block where data is merged

 * @return Symbian error code

 */

EXPORT_C TInt DTraceCoreMediaPlugin::MergeHeaderAndData( const TTraceMessage& aMsg, TDes8& aTarget )

	{

	TInt ret = KErrNone;

	TInt len = TTraceCoreMessageUtils::GetMessageLength( aMsg );

	if ( len > 0 )

		{

		ret = TTraceCoreMessageUtils::MergeHeaderAndData( aMsg, aTarget );

		}

	else

		{

		ret = len;

		}

	OstTrace1( TRACE_FLOW, DTRACECOREMEDIAPLUGIN_MERGEHEADERANDDATA_EXIT, "< DTraceCoreMediaPlugin::MergeHeaderAndData. Ret:%d", ret );

	return ret;

	}

/**

 * Unregisters this plug-in

 */

void DTraceCoreMediaPlugin::Unregister()

    {

    // Get TraceCore

    DTraceCore* traceCore = DTraceCore::GetInstance();

    if ( traceCore != NULL )

        {

        // Get Plugin interface and unregister this from it

        DTraceCorePluginIf* media = traceCore->GetSendReceive().GetPluginIf();

        if ( media != NULL )

            {

            media->UnregisterPlugin( *this );

            }

        }

    }

// End of File