1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/mmlibs/mmfw/src/Client/Audio/MmfFifo.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,108 @@
     1.4 +// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#include "MmfFifo.h"
    1.20 +
    1.21 +const TInt TMMFFifoItemBase::iOffset = _FOFF(TMMFFifoItemBase, iSlink);
    1.22 +
    1.23 +
    1.24 +/**
    1.25 + *
    1.26 + * Construct
    1.27 + *
    1.28 + */
    1.29 +CMMFFifoBase::CMMFFifoBase() : iFifo(TMMFFifoItemBase::iOffset), iFifoIter(iFifo)
    1.30 +	{
    1.31 +	}
    1.32 +
    1.33 +
    1.34 +/**
    1.35 + *
    1.36 + *	Destructor
    1.37 + *
    1.38 + */
    1.39 +CMMFFifoBase::~CMMFFifoBase()
    1.40 +	{
    1.41 +	TMMFFifoItemBase* item;
    1.42 +	iFifoIter.SetToFirst();
    1.43 +	while((item = iFifoIter++)!=NULL)
    1.44 +		{
    1.45 +		iFifo.Remove(*item);
    1.46 +		delete item;
    1.47 +		};
    1.48 +	}
    1.49 +
    1.50 +
    1.51 +/**
    1.52 + *
    1.53 + *  To remove the first stream data from queue	
    1.54 + *
    1.55 + */
    1.56 +void CMMFFifoBase::RemoveFirstItemBase()
    1.57 +	{
    1.58 +	if(!iFifo.IsEmpty())
    1.59 +		{
    1.60 +		iFifo.Remove(*iFifo.First());
    1.61 +		}
    1.62 +	}
    1.63 +
    1.64 +/**
    1.65 + *
    1.66 + *  To get the first stream data from queue	
    1.67 + *
    1.68 + *	@return	"CMMFFifoItem*"	
    1.69 + *			a pointer point to the stream data
    1.70 + *
    1.71 + */
    1.72 +TMMFFifoItemBase* CMMFFifoBase::GetBase()
    1.73 +	{
    1.74 +	TMMFFifoItemBase* firstItem;
    1.75 +	if(iFifo.IsEmpty())
    1.76 +		return NULL;
    1.77 +	firstItem = iFifo.First();
    1.78 +	return firstItem;
    1.79 +	}
    1.80 +
    1.81 +/**
    1.82 + *
    1.83 + *  To add a stream data to the queue, the data will be added at end of queue
    1.84 + *
    1.85 + *	@param	"TMMFFifoItemBase& aItem"	
    1.86 + *			a reference to data
    1.87 + *
    1.88 + */
    1.89 +void CMMFFifoBase::AddToFifo(TMMFFifoItemBase& aItem)
    1.90 +	{
    1.91 +	iFifo.AddLast(aItem);
    1.92 +	}
    1.93 +
    1.94 +/**
    1.95 + *
    1.96 + *  To check stream data queue empty or not	
    1.97 + *
    1.98 + *	@return	"TBool"	
    1.99 + *			a boolean value to indicate the queue is empty or not (ETrue is empty)
   1.100 + *
   1.101 + */
   1.102 +TBool CMMFFifoBase::IsEmpty()
   1.103 +	{
   1.104 +	return iFifo.IsEmpty();
   1.105 +	}
   1.106 +
   1.107 +
   1.108 +
   1.109 +
   1.110 +
   1.111 +