//

// * Copyright 2004 Neusoft America Inc.

// * All rights reserved.

// * This component and the accompanying materials are made available

// * under the terms of the Eclipse Public License v1.0

// * which accompanies this distribution, and is available

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

// *

// * Contributors:

// * Keith Collins (Neusoft America Inc.)  original software development and additional code and modifications.

// * Thomas Gahagen (Neusoft America Inc.)  additional code and modifications.

// * Zhen Yuan (Neusoft America Inc.)  additional code and modifications.

// *

// * Description: This file declares the base class CCommReadWriteBaseAo. 

//                Class CCommReadWriteBaseAo contains the common elements for derived 

//                Frame Reader and Frame Writer classes using a serial comm port.

//

// CommReadWriteBaseAo.h

/** @file CommReadWriteBaseAo.h

 *

 * The file declares the base class CCommReadWriteBaseAo. This class

 * holds the common elements for derived Frame Reader and Frame Writer

 * classes using a serial comm port.

 */

#ifndef _CCOMMREADWRITEBASEAO_H_

#define _CCOMMREADWRITEBASEAO_H_

#include "cs_port.h"

#include <d32comm.h>

#include <c32comm.h>

#include <e32hal.h>

class CPortFactory;

class CMux0710Protocol;

class CCommReadWriteBaseAo : public CActive

    {

public:

    CCommReadWriteBaseAo(CPortFactory* aParent, CMux0710Protocol* aMux0710Protocol,

		TInt aPriority = EPriorityStandard);

    ~CCommReadWriteBaseAo();

    TInt SetServerConfig(TCommServerConfig& aConfig);

    void GetServerConfig(TCommServerConfig& aConfig) const;

    void FreeMemory();

    inline void SetRole(TCommRole aRole){iRole=aRole;};

protected:

    void SetBuffersL();

	// attributes

    HBufC8*				iBuffer;	// pointer to the Tx/Rx buffer

    TPtr8*				iBuf;		// pointer to a TPtr8 that points to the current buffer

    TUint				iBufFlags;	// contains buffer flags e.g for partial read/write

    TInt				iBufSize;	// size of the Tx/Rx buffer

    TCommRole			iRole;		// DTE or DCE role for this port unit

    CPortFactory*		iParent;	// pointer to the CPortC32Interface object

	CMux0710Protocol*	iMux0710Protocol;

	RBusDevComm*		iCommPort;  // pointer to LDD comm port

    };

#endif  // _CCOMMREADWRITEBASEAO_H_