UObjectAllocator.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
/*=============================================================================
    UnObjAllocator.h: Unreal object allocation
=============================================================================*/
 
#pragma once
 
#include "CoreMinimal.h"
#include "HAL/PlatformMath.h"
#include "Memory/LinearAllocator.h"
 
class UObjectBase;
 
class FUObjectAllocator
{
public:
    UE_DEPRECATED(5.5, "Permanent Object Pool is handled by the global instance of FLinearAllocator now")
    void AllocatePermanentObjectPool(int32 InPermanentObjectPoolSize) {}
 
    UE_DEPRECATED(5.6, "BootMessage is obsolete now")
    void BootMessage() {}
 
    COREUOBJECT_API void DisablePersistentAllocator();
 
    COREUOBJECT_API UObjectBase* AllocateUObject(int32 Size, int32 Alignment, bool bAllowPermanent);
 
    COREUOBJECT_API void FreeUObject(UObjectBase *Object) const;
};
 
extern COREUOBJECT_API FUObjectAllocator GUObjectAllocator;
 
class FPermanentObjectPoolExtents
{
public:
    FORCEINLINE FPermanentObjectPoolExtents(const FPersistentLinearAllocatorExtends& InAllocatorExtends = GPersistentLinearAllocatorExtends)
        : Address(InAllocatorExtends.Address)
        , Size(InAllocatorExtends.Size)
    {}
 
    FORCEINLINE bool Contains(const UObjectBase* Object) const
    {
        return reinterpret_cast<uint64>(Object) - Address < Size;
    }
 
private:
    const uint64 Address;
    const uint64 Size;
};