// 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:
// Interface class for media plug-ins
//
#ifndef __TRACECOREMEDIAPLUGIN_H__
#define __TRACECOREMEDIAPLUGIN_H__
// Include files
#include <kernel/kernel.h>
// Forward declarations
class DTraceCorePluginIf;
class TTraceMessage;
/**
* Media plug-in base class
*/
class DTraceCoreMediaPlugin : public DBase
{
public:
/**
* Constructor
*/
IMPORT_C DTraceCoreMediaPlugin();
/**
* Destructor
*/
IMPORT_C ~DTraceCoreMediaPlugin();
/**
* Registers this plug-in to TraceCore
*/
IMPORT_C TInt Register();
/**
* Called by the plug-in to send an incoming message to TraceCore
*
* @param aMsg The message that was received
*/
IMPORT_C void MessageReceived( TTraceMessage &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 KErrNone if successful
*/
IMPORT_C TInt MergeHeaderAndData( const TTraceMessage& aMsg, TDes8& aTarget );
/**
* Called by TraceCore to send a message out
*
* @param aMsg The message to be sent
*/
virtual TInt SendMessage( TTraceMessage &aMsg ) = 0;
private:
/**
* Unregisters this plug-in from TraceCore. Called from destructor
*/
void Unregister();
};
#endif // __TRACECOREMEDIAPLUGIN_H__
// End of File