persistentstorage/sql/SRC/Server/IPC/IPCStream.inl
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:39:58 +0100
branchRCL_3
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Revert incorrect RCL_3 drop: Revision: 201035 Kit: 201035
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// Copyright (c) 2005-2009 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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// ////////////////////////             HIpcStream                 ///////////////////////////////////////
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// 
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//
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/**
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 Initializes HIpcStream data members.
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 @param aHost A pointer to the buffer with the stream data
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 @param aReadPos The position data has to be read from
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 @see HIpcStream::SynchL()
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 @panic SqlDb 7 In _DEBUG mode. aHost is NULL.
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*/
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inline HIpcStream::HIpcStream(MStreamBuf* aHost, TInt aReadPos):
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	iHost(*aHost),
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	iRPos(aReadPos),
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	iWPos(0)
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	{
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	__SQLASSERT(aHost != NULL, ESqlPanicInternalError);
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	}
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/**
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Relases the stream buffer.
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*/
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inline HIpcStream::~HIpcStream()
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	{
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	iHost.Release();
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	}
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/**
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@return The stream data size.
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*/
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inline TInt HIpcStream::SizeL()
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	{
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	return iHost.SizeL();
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	}
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/**
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Synchronizes the stream data buffer with the stream.
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@see HIpcStream::HIpcStream()
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*/
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inline void HIpcStream::SynchL()
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	{
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	iHost.SynchL();
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	}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////             HIpcReadBuf                 //////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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Initializes HIpcReadBuf data members.
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@param aDes Points to the data which will be accessed via HIpcReadBuf instance.
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*/
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inline HIpcReadBuf::HIpcReadBuf(const TDesC8& aDes)
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	{
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	TUint8* ptr = const_cast <TUint8*> (aDes.Ptr());
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	Set(ptr, ptr + aDes.Length(), MStreamBuf::ERead);
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	}
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/**
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Creates an instance of HIpcReadBuf class.
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@param aDes Points to the data which will be accessed via HIpcReadBuf instance.
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@return A pointer to the created HIpcReadBuf instance.
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@leave KErrNoMemory, an out of memory condition has occured;
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*/
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inline HIpcReadBuf* HIpcReadBuf::NewL(const TDesC8& aDes)
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	{
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	return new (ELeave) HIpcReadBuf(aDes);
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	}