os/persistentdata/persistentstorage/dbms/sdbms/Sd_buf2.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// SD_BUF.CPP
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// HDbsBuf class - "DBMS security" related code only
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// 
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//
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#include "SD_STD.H"
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/**
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Standard phase-one factory method for HDbsBuf instances.
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@param aDbSession RDbs session instance.
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@param aFunction DBMS server function code. EDbsDatabaseList DBMS function code is only used.
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@param aArgs EDbsDatabaseList related set of arguments.
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@return A pointer to the created HDbsBuf instance.
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@leave One of the system-wide error codes, including KErrNoMemory.
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*/
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HDbsBuf* HDbsBuf::NewLC(const RDbs& aDbSession, TDbsFunction aFunction, TIpcArgs& aArgs)
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	{
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	HDbsBuf* self = new (ELeave) HDbsBuf;
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	self->PushL();
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	self->ConstructL(aDbSession, aFunction, aArgs);
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	return self;
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	}
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/**
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Standard phase-two construction method for HDbsBuf instances.
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@param aDbSession RDbs session instance.
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@param aFunction DBMS server function code. EDbsDatabaseList DBMS function code is only used.
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@param aArgs EDbsDatabaseList related set of arguments.
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@leave One of the system-wide error codes, including KErrNoMemory.
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*/
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void HDbsBuf::ConstructL(const RDbs& aDbSession, TDbsFunction aFunction, TIpcArgs& aArgs)
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	{
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	TPckg<TDbsStreamBuf> pckg(iBuf);
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	aArgs.Set(3, &pckg);
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	iIpc.OpenL(aDbSession, aFunction, aArgs);
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	TUint8* base = iBuf.iData;
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	// if reading we already have one buffer-full of data
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	TInt avail = Max(0, Min(iBuf.iExt, KDbsStreamBufSize));
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	SetBuf(ERead, base, base + avail);
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	SetPos(ERead, avail);
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	SetBuf(EWrite, base, base);
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	SetPos(EWrite, 0);
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	}