axmol/cocos/base/CCAutoreleasePool.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
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all copies or substantial portions of the Software.

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THE SOFTWARE.
****************************************************************************/
#include "CCAutoreleasePool.h"
#include "ccMacros.h"

NS_CC_BEGIN

static PoolManager* s_pPoolManager = NULL;

AutoreleasePool::AutoreleasePool()
{
    _managedObjectArray = new Array();
    _managedObjectArray->initWithCapacity(150);
}

AutoreleasePool::~AutoreleasePool()
{
    CCLOGINFO("deallocing AutoreleasePool: %p", this);
    CC_SAFE_DELETE(_managedObjectArray);
}

void AutoreleasePool::addObject(Object* object)
{
    _managedObjectArray->addObject(object);

    CCASSERT(object->_reference > 1, "reference count should be greater than 1");
    ++(object->_autoReleaseCount);
    object->release(); // no ref count, in this case autorelease pool added.
}

void AutoreleasePool::removeObject(Object* object)
{
    for (unsigned int i = 0; i < object->_autoReleaseCount; ++i)
    {
        _managedObjectArray->removeObject(object, false);
    }
}

void AutoreleasePool::clear()
{
    if(_managedObjectArray->count() > 0)
    {
        //CCAutoreleasePool* pReleasePool;
#ifdef _DEBUG
        int nIndex = _managedObjectArray->count() - 1;
#endif

        Object* pObj = NULL;
        CCARRAY_FOREACH_REVERSE(_managedObjectArray, pObj)
        {
            if(!pObj)
                break;

            --(pObj->_autoReleaseCount);
            //(*it)->release();
            //delete (*it);
#ifdef _DEBUG
            nIndex--;
#endif
        }

        _managedObjectArray->removeAllObjects();
    }
}


//--------------------------------------------------------------------
//
// PoolManager
//
//--------------------------------------------------------------------

PoolManager* PoolManager::sharedPoolManager()
{
    if (s_pPoolManager == NULL)
    {
        s_pPoolManager = new PoolManager();
    }
    return s_pPoolManager;
}

void PoolManager::purgePoolManager()
{
    CC_SAFE_DELETE(s_pPoolManager);
}

PoolManager::PoolManager()
{
    _releasePoolStack = new Array();    
    _releasePoolStack->initWithCapacity(150);
    _curReleasePool = 0;
}

PoolManager::~PoolManager()
{
    CCLOGINFO("deallocing PoolManager: %p", this);
    finalize();
 
     // we only release the last autorelease pool here 
    _curReleasePool = 0;
    _releasePoolStack->removeObjectAtIndex(0);
 
    CC_SAFE_DELETE(_releasePoolStack);
}

void PoolManager::finalize()
{
    if(_releasePoolStack->count() > 0)
    {
        //CCAutoreleasePool* pReleasePool;
        Object* pObj = NULL;
        CCARRAY_FOREACH(_releasePoolStack, pObj)
        {
            if(!pObj)
                break;
            AutoreleasePool* pPool = static_cast<AutoreleasePool*>(pObj);
            pPool->clear();
        }
    }
}

void PoolManager::push()
{
    AutoreleasePool* pPool = new AutoreleasePool();       //ref = 1
    _curReleasePool = pPool;

    _releasePoolStack->addObject(pPool);                   //ref = 2

    pPool->release();                                       //ref = 1
}

void PoolManager::pop()
{
    if (! _curReleasePool)
    {
        return;
    }

    int nCount = _releasePoolStack->count();

    _curReleasePool->clear();
 
    if (nCount > 1)
    {
        _releasePoolStack->removeObjectAtIndex(nCount-1);

//         if(nCount > 1)
//         {
//             _curReleasePool = _releasePoolStack->getObjectAtIndex(nCount - 2);
//             return;
//         }
        _curReleasePool = (AutoreleasePool*)_releasePoolStack->getObjectAtIndex(nCount - 2);
    }

    /*_curReleasePool = NULL;*/
}

void PoolManager::removeObject(Object* object)
{
    CCASSERT(_curReleasePool, "current auto release pool should not be null");

    _curReleasePool->removeObject(object);
}

void PoolManager::addObject(Object* object)
{
    getCurReleasePool()->addObject(object);
}


AutoreleasePool* PoolManager::getCurReleasePool()
{
    if(!_curReleasePool)
    {
        push();
    }

    CCASSERT(_curReleasePool, "current auto release pool should not be null");

    return _curReleasePool;
}

NS_CC_END