1 /*

     2 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef MMFAUDIOSVRSERVICE_H

    21 #define MMFAUDIOSVRSERVICE_H

    22 

    23 /**

    24 @publishedPartner 

    25 @file

    26 @released

    27 */

    28 

    29 //  INCLUDES

    30 

    31 #include <ecom/ecom.h>

    32 #include <badesca.h>

    33 

    34 

    35 /**

    36 This is the interface for all audio service 

    37 plugins. So Each Service plugin has to implement this interface.

    38 */

    39 class MAudioSvrService

    40 	{	

    41 public:

    42 	/**

    43 	This method is used to pass a destructor key for ECom. The passed UID must be retained for the lifetime 

    44 	of the plugin and, on a subsequent call to Release(),REComSession::DestroyedImplementation() must be 

    45 	called by the plugin, using the stored UID.

    46 	@param aUid The Uid returned by REComSession::CreateImplementationL() or similar.

    47 	*/

    48 	virtual void PassDestructorKey(TUid aUid)=0;

    49 	/**

    50 	This method is used to load or create the objects that are internally used by service plugin.

    51 	@return KErrNone if successfull, else corresponding error code

    52 	*/

    53 	virtual TInt Load()=0;

    54 	/**

    55 	This method is used to start the service.

    56 	@return KErrNone if successfull, else corresponding error code

    57 	*/

    58 	virtual TInt Start()=0;

    59 	/**

    60 	This method is used to Stop the service.

    61 	@return KErrNone if successfull, else corresponding error code

    62 	*/

    63 	virtual void Stop()=0;

    64 	/**

    65 	This method is used to destroy plugin. This is equivalent to destructor.

    66 	*/

    67 	virtual void Release()=0;

    68 	};

    69 #endif