| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
| sl@0 | 1 |
// Copyright (c) 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 the License "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 |
// f32\sfile\sf_pool.cpp |
| sl@0 | 15 |
// |
| sl@0 | 16 |
// |
| sl@0 | 17 |
|
| sl@0 | 18 |
#include "sf_pool.h" |
| sl@0 | 19 |
#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
| sl@0 | 20 |
#include "sf_notifier.h" |
| sl@0 | 21 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
| sl@0 | 22 |
|
| sl@0 | 23 |
//=====CFsPool============================= |
| sl@0 | 24 |
|
| sl@0 | 25 |
template <class T> |
| sl@0 | 26 |
CFsPool<T>* CFsPool<T>::New(TInt aPoolSize) |
| sl@0 | 27 |
{
|
| sl@0 | 28 |
CFsPool<T>* pool = new CFsPool<T>(); |
| sl@0 | 29 |
if(!pool) |
| sl@0 | 30 |
return NULL; |
| sl@0 | 31 |
|
| sl@0 | 32 |
TInt r = pool->Construct(aPoolSize); |
| sl@0 | 33 |
if(r!=KErrNone) |
| sl@0 | 34 |
{
|
| sl@0 | 35 |
delete pool; |
| sl@0 | 36 |
return NULL; |
| sl@0 | 37 |
} |
| sl@0 | 38 |
else |
| sl@0 | 39 |
return pool; |
| sl@0 | 40 |
} |
| sl@0 | 41 |
|
| sl@0 | 42 |
|
| sl@0 | 43 |
template <class T> |
| sl@0 | 44 |
CFsPool<T>::CFsPool() |
| sl@0 | 45 |
{
|
| sl@0 | 46 |
} |
| sl@0 | 47 |
|
| sl@0 | 48 |
template <class T> |
| sl@0 | 49 |
TInt CFsPool<T>::Construct(TInt aPoolSize) |
| sl@0 | 50 |
{
|
| sl@0 | 51 |
TInt r = iPoolLock.CreateLocal(KNotificationPoolSize); |
| sl@0 | 52 |
if(r != KErrNone) |
| sl@0 | 53 |
return r; |
| sl@0 | 54 |
|
| sl@0 | 55 |
r = iFreeList.Reserve(KNotificationPoolSize); |
| sl@0 | 56 |
if(r != KErrNone) |
| sl@0 | 57 |
return r; |
| sl@0 | 58 |
|
| sl@0 | 59 |
TInt i = 0; |
| sl@0 | 60 |
while(i < aPoolSize) |
| sl@0 | 61 |
{
|
| sl@0 | 62 |
T* t = T::New(); |
| sl@0 | 63 |
if(!t) |
| sl@0 | 64 |
{
|
| sl@0 | 65 |
return KErrNoMemory; |
| sl@0 | 66 |
} |
| sl@0 | 67 |
iFreeList.Append(t); |
| sl@0 | 68 |
i++; |
| sl@0 | 69 |
} |
| sl@0 | 70 |
|
| sl@0 | 71 |
return KErrNone; |
| sl@0 | 72 |
} |
| sl@0 | 73 |
|
| sl@0 | 74 |
//This should only be called by the Manager when it holds |
| sl@0 | 75 |
//the manager's write lock meaning that all of the |
| sl@0 | 76 |
//blocks should be unallocated |
| sl@0 | 77 |
template <class T> |
| sl@0 | 78 |
CFsPool<T>::~CFsPool() |
| sl@0 | 79 |
{
|
| sl@0 | 80 |
for(TInt i=0; i < iFreeList.Count(); i++) |
| sl@0 | 81 |
{
|
| sl@0 | 82 |
delete iFreeList[i]; |
| sl@0 | 83 |
} |
| sl@0 | 84 |
iFreeList.Close(); |
| sl@0 | 85 |
} |
| sl@0 | 86 |
|
| sl@0 | 87 |
|
| sl@0 | 88 |
template <class T> |
| sl@0 | 89 |
T* CFsPool<T>::Allocate() |
| sl@0 | 90 |
{
|
| sl@0 | 91 |
Lock(); //Waits when there are no free blocks left |
| sl@0 | 92 |
|
| sl@0 | 93 |
TInt lastIndex = iFreeList.Count()-1; |
| sl@0 | 94 |
T* t = iFreeList[lastIndex]; |
| sl@0 | 95 |
iFreeList.Remove(lastIndex); |
| sl@0 | 96 |
|
| sl@0 | 97 |
return t; |
| sl@0 | 98 |
} |
| sl@0 | 99 |
|
| sl@0 | 100 |
template <class T> |
| sl@0 | 101 |
void CFsPool<T>::Free(T* aBlock) |
| sl@0 | 102 |
{
|
| sl@0 | 103 |
iFreeList.Append(aBlock); |
| sl@0 | 104 |
Unlock(); |
| sl@0 | 105 |
} |
| sl@0 | 106 |
|
| sl@0 | 107 |
template <class T> |
| sl@0 | 108 |
void CFsPool<T>::Lock() |
| sl@0 | 109 |
{
|
| sl@0 | 110 |
iPoolLock.Wait(); |
| sl@0 | 111 |
} |
| sl@0 | 112 |
|
| sl@0 | 113 |
template <class T> |
| sl@0 | 114 |
void CFsPool<T>::Unlock() |
| sl@0 | 115 |
{
|
| sl@0 | 116 |
iPoolLock.Signal(); |
| sl@0 | 117 |
} |
| sl@0 | 118 |
|
| sl@0 | 119 |
#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
| sl@0 | 120 |
//This is needed here because the compiler needs to know which types will be |
| sl@0 | 121 |
//instantiating the template (because it's in a separate file) |
| sl@0 | 122 |
template class CFsPool<CFsNotificationBlock>; |
| sl@0 | 123 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
| sl@0 | 124 |