// 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);

 	}