| author | sl@SLION-WIN7.fritz.box |
| Fri, 15 Jun 2012 03:10:57 +0200 | |
| changeset 0 | bde4ae8d615e |
| permissions | -rw-r--r-- |
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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 the License "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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// f32\sfile\sf_pool.cpp |
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// |
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// |
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|
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#include "sf_pool.h" |
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#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
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#include "sf_notifier.h" |
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#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
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|
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//=====CFsPool============================= |
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|
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template <class T> |
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CFsPool<T>* CFsPool<T>::New(TInt aPoolSize) |
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{
|
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CFsPool<T>* pool = new CFsPool<T>(); |
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if(!pool) |
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return NULL; |
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|
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TInt r = pool->Construct(aPoolSize); |
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if(r!=KErrNone) |
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{
|
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delete pool; |
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return NULL; |
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} |
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else |
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return pool; |
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} |
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|
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|
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template <class T> |
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CFsPool<T>::CFsPool() |
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{
|
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} |
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|
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template <class T> |
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TInt CFsPool<T>::Construct(TInt aPoolSize) |
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{
|
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TInt r = iPoolLock.CreateLocal(KNotificationPoolSize); |
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if(r != KErrNone) |
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return r; |
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|
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r = iFreeList.Reserve(KNotificationPoolSize); |
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if(r != KErrNone) |
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return r; |
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|
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TInt i = 0; |
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while(i < aPoolSize) |
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{
|
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T* t = T::New(); |
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if(!t) |
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{
|
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return KErrNoMemory; |
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} |
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iFreeList.Append(t); |
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i++; |
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} |
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|
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return KErrNone; |
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} |
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|
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//This should only be called by the Manager when it holds |
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//the manager's write lock meaning that all of the |
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//blocks should be unallocated |
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template <class T> |
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CFsPool<T>::~CFsPool() |
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{
|
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for(TInt i=0; i < iFreeList.Count(); i++) |
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{
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delete iFreeList[i]; |
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} |
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iFreeList.Close(); |
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} |
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|
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|
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template <class T> |
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T* CFsPool<T>::Allocate() |
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{
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Lock(); //Waits when there are no free blocks left |
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|
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TInt lastIndex = iFreeList.Count()-1; |
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T* t = iFreeList[lastIndex]; |
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iFreeList.Remove(lastIndex); |
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|
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return t; |
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} |
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|
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template <class T> |
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void CFsPool<T>::Free(T* aBlock) |
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{
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iFreeList.Append(aBlock); |
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Unlock(); |
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} |
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|
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template <class T> |
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void CFsPool<T>::Lock() |
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{
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iPoolLock.Wait(); |
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} |
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|
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template <class T> |
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void CFsPool<T>::Unlock() |
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{
|
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iPoolLock.Signal(); |
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} |
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|
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#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
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//This is needed here because the compiler needs to know which types will be |
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//instantiating the template (because it's in a separate file) |
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template class CFsPool<CFsNotificationBlock>; |
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#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION |
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