axmol/cocos/base/CCAutoreleasePool.cpp

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

http://www.cocos2d-x.org

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

NS_CC_BEGIN

static PoolManager* s_pPoolManager = NULL;

AutoreleasePool::AutoreleasePool()
{
    _managedObjectArray.reserve(150);
}

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

void AutoreleasePool::addObject(Object* object)
{
    _managedObjectArray.pushBack(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.eraseObject(object, false);
    }
}

void AutoreleasePool::clear()
{
    if (!_managedObjectArray.empty())
    {
        //CCAutoreleasePool* pReleasePool;
#ifdef _DEBUG
        int nIndex = _managedObjectArray.size() - 1;
#endif

        _managedObjectArray.forEachReverse([&](Object* obj){
            --(obj->_autoReleaseCount);
            //(*it)->release();
            //delete (*it);
#ifdef _DEBUG
            nIndex--;
#endif
        });

        _managedObjectArray.clear();
    }
}


//--------------------------------------------------------------------
//
// 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.reserve(150);
    _curReleasePool = 0;
}

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

void PoolManager::finalize()
{
    if (!_releasePoolStack.empty())
    {
        _releasePoolStack.forEach([](AutoreleasePool* pool){
            pool->clear();
        });
    }
}

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

    _releasePoolStack.pushBack(pool);                   //ref = 2

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

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

    ssize_t count = _releasePoolStack.size();

    _curReleasePool->clear();
 
    if (count > 1)
    {
        _releasePoolStack.erase(count-1);

//         if(nCount > 1)
//         {
//             _curReleasePool = _releasePoolStack.at(count - 2);
//             return;
//         }
        _curReleasePool = _releasePoolStack.at(count - 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