/*

* Copyright (c) 2005-2009 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:  

*

*/

#ifndef STATTRANSPORT_H

#define STATTRANSPORT_H

#include <stdio.h>

#include <stdarg.h>

#include <memory.h>

#include "CSTATReturnCodes.h"

// abstract transport class

class CSTATTransport

{

public:

	CSTATTransport();

	~CSTATTransport() {}

	// these must be derived for selected transport

	virtual int Initialise(void) = 0;

	virtual int Connect(const char *pAddress = NULL) = 0;

	virtual int Send(const char cIdentifier, const char *pData = NULL, const unsigned long ulLength = 0) = 0;

	virtual int Receive(char *cIdentifier, char **ppData = NULL, unsigned long *pLength = NULL) = 0;

	virtual int Disconnect(void) = 0;

	virtual int Release(void) = 0;

	virtual char * Error(void);

	virtual unsigned int GetMaxPacketSize(void) const = 0;

protected:

	void SetError(const char *pText, ...);

private:

	char szError[STAT_MAX_ERRORLEN + 1];

};

////////////////////////////////////////////////////////////////////////////////////////

// Constructor

inline CSTATTransport::CSTATTransport(void)

{

	memset(&szError, 0, sizeof(szError));

}

////////////////////////////////////////////////////////////////////////////////////////

// Return error text

inline char * CSTATTransport::Error(void)

{

	return szError;

}

////////////////////////////////////////////////////////////////////////////////////////

// Set error text

inline void CSTATTransport::SetError(const char *pText, ...)

{

	memset(&szError, 0, sizeof(szError));

	va_list pCurrent = (va_list)0;

    va_start (pCurrent, pText);

	vsprintf (szError, pText, pCurrent);

    va_end (pCurrent);

	char szExtra[20] = {0};

	sprintf(szExtra, " (%d)", GetLastError());

	strcat (szError, szExtra);

}

#endif