| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
| sl@0 | 1 |
// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies). |
| sl@0 | 2 |
// All rights reserved. |
| sl@0 | 3 |
// This component and the accompanying materials are made available |
| sl@0 | 4 |
// under the terms of "Eclipse Public License v1.0" |
| sl@0 | 5 |
// which accompanies this distribution, and is available |
| sl@0 | 6 |
// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
| sl@0 | 7 |
// |
| sl@0 | 8 |
// Initial Contributors: |
| sl@0 | 9 |
// Nokia Corporation - initial contribution. |
| sl@0 | 10 |
// |
| sl@0 | 11 |
// Contributors: |
| sl@0 | 12 |
// |
| sl@0 | 13 |
// Description: |
| sl@0 | 14 |
// |
| sl@0 | 15 |
|
| sl@0 | 16 |
#include "MmfFifo.h" |
| sl@0 | 17 |
|
| sl@0 | 18 |
const TInt TMMFFifoItemBase::iOffset = _FOFF(TMMFFifoItemBase, iSlink); |
| sl@0 | 19 |
|
| sl@0 | 20 |
|
| sl@0 | 21 |
/** |
| sl@0 | 22 |
* |
| sl@0 | 23 |
* Construct |
| sl@0 | 24 |
* |
| sl@0 | 25 |
*/ |
| sl@0 | 26 |
CMMFFifoBase::CMMFFifoBase() : iFifo(TMMFFifoItemBase::iOffset), iFifoIter(iFifo) |
| sl@0 | 27 |
{
|
| sl@0 | 28 |
} |
| sl@0 | 29 |
|
| sl@0 | 30 |
|
| sl@0 | 31 |
/** |
| sl@0 | 32 |
* |
| sl@0 | 33 |
* Destructor |
| sl@0 | 34 |
* |
| sl@0 | 35 |
*/ |
| sl@0 | 36 |
CMMFFifoBase::~CMMFFifoBase() |
| sl@0 | 37 |
{
|
| sl@0 | 38 |
TMMFFifoItemBase* item; |
| sl@0 | 39 |
iFifoIter.SetToFirst(); |
| sl@0 | 40 |
while((item = iFifoIter++)!=NULL) |
| sl@0 | 41 |
{
|
| sl@0 | 42 |
iFifo.Remove(*item); |
| sl@0 | 43 |
delete item; |
| sl@0 | 44 |
}; |
| sl@0 | 45 |
} |
| sl@0 | 46 |
|
| sl@0 | 47 |
|
| sl@0 | 48 |
/** |
| sl@0 | 49 |
* |
| sl@0 | 50 |
* To remove the first stream data from queue |
| sl@0 | 51 |
* |
| sl@0 | 52 |
*/ |
| sl@0 | 53 |
void CMMFFifoBase::RemoveFirstItemBase() |
| sl@0 | 54 |
{
|
| sl@0 | 55 |
if(!iFifo.IsEmpty()) |
| sl@0 | 56 |
{
|
| sl@0 | 57 |
iFifo.Remove(*iFifo.First()); |
| sl@0 | 58 |
} |
| sl@0 | 59 |
} |
| sl@0 | 60 |
|
| sl@0 | 61 |
/** |
| sl@0 | 62 |
* |
| sl@0 | 63 |
* To get the first stream data from queue |
| sl@0 | 64 |
* |
| sl@0 | 65 |
* @return "CMMFFifoItem*" |
| sl@0 | 66 |
* a pointer point to the stream data |
| sl@0 | 67 |
* |
| sl@0 | 68 |
*/ |
| sl@0 | 69 |
TMMFFifoItemBase* CMMFFifoBase::GetBase() |
| sl@0 | 70 |
{
|
| sl@0 | 71 |
TMMFFifoItemBase* firstItem; |
| sl@0 | 72 |
if(iFifo.IsEmpty()) |
| sl@0 | 73 |
return NULL; |
| sl@0 | 74 |
firstItem = iFifo.First(); |
| sl@0 | 75 |
return firstItem; |
| sl@0 | 76 |
} |
| sl@0 | 77 |
|
| sl@0 | 78 |
/** |
| sl@0 | 79 |
* |
| sl@0 | 80 |
* To add a stream data to the queue, the data will be added at end of queue |
| sl@0 | 81 |
* |
| sl@0 | 82 |
* @param "TMMFFifoItemBase& aItem" |
| sl@0 | 83 |
* a reference to data |
| sl@0 | 84 |
* |
| sl@0 | 85 |
*/ |
| sl@0 | 86 |
void CMMFFifoBase::AddToFifo(TMMFFifoItemBase& aItem) |
| sl@0 | 87 |
{
|
| sl@0 | 88 |
iFifo.AddLast(aItem); |
| sl@0 | 89 |
} |
| sl@0 | 90 |
|
| sl@0 | 91 |
/** |
| sl@0 | 92 |
* |
| sl@0 | 93 |
* To check stream data queue empty or not |
| sl@0 | 94 |
* |
| sl@0 | 95 |
* @return "TBool" |
| sl@0 | 96 |
* a boolean value to indicate the queue is empty or not (ETrue is empty) |
| sl@0 | 97 |
* |
| sl@0 | 98 |
*/ |
| sl@0 | 99 |
TBool CMMFFifoBase::IsEmpty() |
| sl@0 | 100 |
{
|
| sl@0 | 101 |
return iFifo.IsEmpty(); |
| sl@0 | 102 |
} |
| sl@0 | 103 |
|
| sl@0 | 104 |
|
| sl@0 | 105 |
|
| sl@0 | 106 |
|
| sl@0 | 107 |
|
| sl@0 | 108 |