// Copyright (c) 2004-2009 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:

// SD_BUF.CPP

// HDbsBuf class - "DBMS security" related code only

// 

//

#include "SD_STD.H"

/**

Standard phase-one factory method for HDbsBuf instances.

@param aDbSession RDbs session instance.

@param aFunction DBMS server function code. EDbsDatabaseList DBMS function code is only used.

@param aArgs EDbsDatabaseList related set of arguments.

@return A pointer to the created HDbsBuf instance.

@leave One of the system-wide error codes, including KErrNoMemory.

*/

HDbsBuf* HDbsBuf::NewLC(const RDbs& aDbSession, TDbsFunction aFunction, TIpcArgs& aArgs)

	{

	HDbsBuf* self = new (ELeave) HDbsBuf;

	self->PushL();

	self->ConstructL(aDbSession, aFunction, aArgs);

	return self;

	}

/**

Standard phase-two construction method for HDbsBuf instances.

@param aDbSession RDbs session instance.

@param aFunction DBMS server function code. EDbsDatabaseList DBMS function code is only used.

@param aArgs EDbsDatabaseList related set of arguments.

@leave One of the system-wide error codes, including KErrNoMemory.

*/

void HDbsBuf::ConstructL(const RDbs& aDbSession, TDbsFunction aFunction, TIpcArgs& aArgs)

	{

	TPckg<TDbsStreamBuf> pckg(iBuf);

	aArgs.Set(3, &pckg);

	iIpc.OpenL(aDbSession, aFunction, aArgs);

	TUint8* base = iBuf.iData;

	// if reading we already have one buffer-full of data

	TInt avail = Max(0, Min(iBuf.iExt, KDbsStreamBufSize));

	SetBuf(ERead, base, base + avail);

	SetPos(ERead, avail);

	SetBuf(EWrite, base, base);

	SetPos(EWrite, 0);

	}