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o3de/Code/CryEngine/CryCommon/CryPool/Defrag.h

66 lines
1.9 KiB
C++

/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
// Original file Copyright Crytek GMBH or its affiliates, used under license.
#ifndef CRYINCLUDE_CRYPOOL_DEFRAG_H
#define CRYINCLUDE_CRYPOOL_DEFRAG_H
#pragma once
namespace NCryPoolAlloc
{
template<class T>
class CDefragStacked
: public T
{
template<class TItem>
ILINE bool DefragElement(TItem* pItem)
{
T::m_Items.Validate();
if (pItem)
{
for (; pItem->Next(); pItem = pItem->Next())
{
if (!pItem->IsFree())
{
continue;
}
if (pItem->Next()->Locked())
{
continue;
}
if (!pItem->Available(pItem->Next()->Align(), pItem->Next()->Align()))
{
continue;
}
T::m_Items.Validate(pItem);
Stack(pItem);
T::m_Items.Validate(pItem);
Merge(pItem);
T::m_Items.Validate();
return true;
}
}
return false;
}
public:
ILINE bool Beat()
{
return T::Defragmentable() && DefragElement(T::m_Items.First());
};
};
}
#endif // CRYINCLUDE_CRYPOOL_DEFRAG_H