commsfwutils/commsbufs/mbufmgr/src/mb_allocator.cpp
author William Roberts <williamr@symbian.org>
Thu, 17 Jun 2010 22:32:29 +0100
branchGCC_SURGE
changeset 55 6b0cf7abfb2b
parent 0 dfb7c4ff071f
permissions -rw-r--r--
Mark TMeta vtable and typeinfo exports as ABSENT - Bug 3024
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// Copyright (c) 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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//
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#include <comms-infras/mbufallocator.h>
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#include <comms-infras/commsbufpondop.h>
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#include "commsbufpondintf.h"
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EXPORT_C RMBufAllocator::RMBufAllocator() 
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: TCommsBufAllocator(TCommsBufPondTLSOp::Get())
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	{}
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EXPORT_C TInt RMBufAllocator::BytesAvailable() const
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/**
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Obtains the total available bytes available in the mbuf system in it's entirety.
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@return the number of available bytes within all of the MBuf pools.
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*/
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    {
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	return iPond.BytesAvailable ();
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	}
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EXPORT_C TInt RMBufAllocator::BytesAvailable(TInt aSize) const
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/**
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Obtains the total bytes available in the pool of the given sized MBuf.
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@param aSize one of the sizes returned by RMBufAllocator::NextMBufSize().
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@return the number of available bytes within the MBuf pool of MBufs given by the size aSize.
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*/
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    {
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	return iPond.BytesAvailable (aSize);
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	}
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EXPORT_C TInt RMBufAllocator::NextMBufSize(TInt aSize) const
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/**
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Returns the first MBuf size that is greater than aSize, returns KErrNotFound if there isn't an MBuf
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whose size is larger than aSize. Can be used to find the size of each of the MBuf pools by starting
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at 0 and repeatedly passing in the result of the previous call until KErrNotFound occurs.
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@param aSize a starting size to search upwards from.
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@return the size of the first MBuf whose size is greater than aSize.
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*/
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    {
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	return iPond.NextBufSize (aSize);
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	}
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EXPORT_C TInt RMBufAllocator::LargestMBufSize() const
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/**
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@return the size of the largest MBuf that is registered with the sytem.
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*/
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    {
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	return iPond.LargestBufSize ();
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	} 
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