1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

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

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // SD_BUF.CPP

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

    16 // 

    17 //

    18 

    19 #include "SD_STD.H"

    20 

    21 /**

    22 Standard phase-one factory method for HDbsBuf instances.

    23 @param aDbSession RDbs session instance.

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

    25 @param aArgs EDbsDatabaseList related set of arguments.

    26 @return A pointer to the created HDbsBuf instance.

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

    28 */

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

    30 	{

    31 	HDbsBuf* self = new (ELeave) HDbsBuf;

    32 	self->PushL();

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

    34 	return self;

    35 	}

    36 

    37 /**

    38 Standard phase-two construction method for HDbsBuf instances.

    39 @param aDbSession RDbs session instance.

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

    41 @param aArgs EDbsDatabaseList related set of arguments.

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

    43 */

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

    45 	{

    46 	TPckg<TDbsStreamBuf> pckg(iBuf);

    47 	aArgs.Set(3, &pckg);

    48 	iIpc.OpenL(aDbSession, aFunction, aArgs);

    49 	TUint8* base = iBuf.iData;

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

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

    52 	SetBuf(ERead, base, base + avail);

    53 	SetPos(ERead, avail);

    54 	SetBuf(EWrite, base, base);

    55 	SetPos(EWrite, 0);

    56 	}