1 /**

     2 * Copyright (c) 2003-2009 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 * Buffer class declarations

    16 * Contains I/O Buffer class declaration

    17 * 

    18 *

    19 */

    20 

    21 

    22 

    23 /**

    24  @file Iobuffer.h

    25  @internalComponent 

    26 */

    27 

    28 #ifndef __IO_BUFFERS_H

    29 #define __IO_BUFFERS_H

    30 

    31 #include <telsess.h>

    32 

    33 class MIONotifier

    34 /**

    35 @internalComponent

    36 */

    37 	{

    38 public:

    39 	

    40 	virtual void WriteComplete() = 0;

    41 	virtual void WriteError(TInt aError) = 0;

    42 	virtual void ReadComplete(TInt aError) = 0;

    43 	virtual void ReadCompleteL() = 0;

    44 	virtual void Event(TInt aEvent,TInt aEventCode) = 0;

    45 	};

    46 

    47 class CActiveWriter;

    48 class CActiveReader;

    49 

    50 NONSHARABLE_CLASS(CIOBufferControl) : public CBase , public MIONotifier

    51 /**

    52 @internalComponent

    53 */

    54 	{ 

    55 public:

    56 	CIOBufferControl();

    57 	~CIOBufferControl();

    58 

    59 	static CIOBufferControl* NewL(MIONotifier* aNotifier);

    60 	void ConstructL(MIONotifier* aNotifier);

    61 	TInt WriteUrgent(HBufC8* aBuffer);

    62 	

    63 	TInt Write(HBufC8* aBuffer);

    64 	TInt Read(TDes8& aBuffer);

    65 	void SetWriter(CActiveWriter* aWriter);

    66 	void SetReader(CActiveReader* aReader);

    67 

    68 	void Reset();

    69 

    70 	// MIONotifier

    71 	void WriteComplete();

    72 	void WriteError(TInt aError);

    73 	void ReadCompleteL();

    74 	void ReadComplete(TInt aError);

    75 	void Event(TInt aEvent,TInt aEventCode);

    76 

    77 public:

    78 

    79 private:

    80 	CActiveWriter*								iWriter;

    81 	CActiveReader*								iReader;

    82 	MIONotifier*								iNotifier;

    83 

    84 	HBufC8*										iWriteBuffers[2];

    85 	TInt iLiveIndex;

    86 	TInt iQueueIndex;

    87 	HBufC8*										iUrgent;

    88 

    89 	};

    90 

    91 #endif