sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // SD_BUF.CPP
sl@0: // HDbsBuf class - "DBMS security" related code only
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "SD_STD.H"
sl@0: 
sl@0: /**
sl@0: Standard phase-one factory method for HDbsBuf instances.
sl@0: @param aDbSession RDbs session instance.
sl@0: @param aFunction DBMS server function code. EDbsDatabaseList DBMS function code is only used.
sl@0: @param aArgs EDbsDatabaseList related set of arguments.
sl@0: @return A pointer to the created HDbsBuf instance.
sl@0: @leave One of the system-wide error codes, including KErrNoMemory.
sl@0: */
sl@0: HDbsBuf* HDbsBuf::NewLC(const RDbs& aDbSession, TDbsFunction aFunction, TIpcArgs& aArgs)
sl@0: 	{
sl@0: 	HDbsBuf* self = new (ELeave) HDbsBuf;
sl@0: 	self->PushL();
sl@0: 	self->ConstructL(aDbSession, aFunction, aArgs);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Standard phase-two construction method for HDbsBuf instances.
sl@0: @param aDbSession RDbs session instance.
sl@0: @param aFunction DBMS server function code. EDbsDatabaseList DBMS function code is only used.
sl@0: @param aArgs EDbsDatabaseList related set of arguments.
sl@0: @leave One of the system-wide error codes, including KErrNoMemory.
sl@0: */
sl@0: void HDbsBuf::ConstructL(const RDbs& aDbSession, TDbsFunction aFunction, TIpcArgs& aArgs)
sl@0: 	{
sl@0: 	TPckg<TDbsStreamBuf> pckg(iBuf);
sl@0: 	aArgs.Set(3, &pckg);
sl@0: 	iIpc.OpenL(aDbSession, aFunction, aArgs);
sl@0: 	TUint8* base = iBuf.iData;
sl@0: 	// if reading we already have one buffer-full of data
sl@0: 	TInt avail = Max(0, Min(iBuf.iExt, KDbsStreamBufSize));
sl@0: 	SetBuf(ERead, base, base + avail);
sl@0: 	SetPos(ERead, avail);
sl@0: 	SetBuf(EWrite, base, base);
sl@0: 	SetPos(EWrite, 0);
sl@0: 	}