1 /*

     2 * Copyright (c) 2004 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:  Definition of the audio buffer write request active object class

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CWRITEREQUEST_H

    21 #define CWRITEREQUEST_H

    22 

    23 // INCLUDES

    24 #include <e32base.h>

    25 #include "S60AudioClientStreamSource.h"

    26 

    27 

    28 // CLASS DECLARATION

    29 

    30 /**

    31 *  S60 Audio Buffer class encapsulating a client audio buffer write request to the server-side data source.

    32 *

    33 *  @lib S60AudioClientStreamSource.lib

    34 *  @since 3.1

    35 */

    36 class CWriteRequest : public CActive

    37     {

    38     public: // Constructors and destructor

    39 

    40         /**

    41         * Two-phased constructor.

    42         */

    43         static CWriteRequest* NewL(TMMFMessageDestinationPckg aMessageHandler, RMMFController& aController,

    44         							 CS60SourceEventDispatcher& aCallback);

    45 

    46         /**

    47         * Destructor.

    48         */

    49         virtual ~CWriteRequest();

    50 

    51     public: // New functions

    52 

    53 		/**

    54         * Write the specified buffer to source

    55         * @param aBuffer Buffer to be processed.

    56         * @since 3.1

    57         * @return One of the Standard Return Error Codes

    58         */

    59         void WriteAudioData(CClientAudioBuffer& aBuffer);

    60 

    61         /**

    62         * Returns if the WriteRequest is Free

    63         * @since Series 60 3.1

    64         * @return return the status of the WriteRequest

    65         */

    66         TBool IsFree();

    67 

    68 

    69     private:

    70 

    71         /**

    72         * C++ default constructor.

    73         */

    74         CWriteRequest(TMMFMessageDestinationPckg aMessageHandler, RMMFController& aController,

    75         							 CS60SourceEventDispatcher& aCallback);

    76 

    77         /**

    78         * By default Symbian 2nd phase constructor is private.

    79         */

    80         void ConstructL();

    81 

    82         void RunL();

    83 

    84         void DoCancel();

    85 

    86     private:

    87 

    88 		// Pointer to controller with custom command facility

    89 		RMMFController& iController;

    90 		// Message handler handle

    91 		TMMFMessageDestinationPckg iMessageHandler;

    92 		// Object to notify upon request completion

    93 		CS60SourceEventDispatcher& iCallback;

    94 		// Last buffer indicator to be sent to server-side

    95 		TPckgBuf<TInt> iLastBufferPckg;

    96 		// Buffer to be sent to server-side

    97 		//TDesC8* iBuffer;

    98 		CClientAudioBuffer* iClientBuffer;

    99 		// Indicates whether the buffer has been processed

   100 		TBool iProcessed;

   101 		// Indicates whether this object is free to reuse

   102 		TBool iFree;

   103 	};

   104 

   105 #endif 		// CWRITEREQUEST_H

   106 

   107 //  End of File