ContainerAllocationPolicies.h File Reference

#include "CoreTypes.h"
#include "Containers/ContainerHelpers.h"
#include "HAL/PlatformMath.h"
#include "HAL/UnrealMemory.h"
#include "Math/NumericLimits.h"
#include "Misc/AssertionMacros.h"
#include "Templates/AlignmentTemplates.h"
#include "Templates/IsPolymorphic.h"
#include "Templates/MemoryOps.h"
#include "Templates/TypeCompatibleBytes.h"
#include <type_traits>

Go to the source code of this file.

Classes
struct	FScriptContainerElement
struct	TAllocatorTraitsBase< AllocatorType >
struct	TAllocatorTraits< AllocatorType >
struct	TCanMoveBetweenAllocators< FromAllocatorType, ToAllocatorType >
class	FContainerAllocatorInterface
class	FContainerAllocatorInterface::ForElementType< ElementType >
class	TAlignedHeapAllocator< Alignment >
class	TAlignedHeapAllocator< Alignment >::ForAnyElementType
class	TAlignedHeapAllocator< Alignment >::ForElementType< ElementType >
struct	TAllocatorTraits< TAlignedHeapAllocator< Alignment > >
struct	TBitsToSizeType< IndexSize >
struct	TBitsToSizeType< 8 >
struct	TBitsToSizeType< 16 >
struct	TBitsToSizeType< 32 >
struct	TBitsToSizeType< 64 >
class	TSizedHeapAllocator< IndexSize, BaseMallocType >
class	TSizedHeapAllocator< IndexSize, BaseMallocType >::ForAnyElementType
class	TSizedHeapAllocator< IndexSize, BaseMallocType >::ForElementType< ElementType >
class	TSizedDefaultAllocator< IndexSize >
class	TSizedNonshrinkingAllocator< IndexSize >
struct	TAllocatorTraits< TSizedHeapAllocator< IndexSize > >
struct	TCanMoveBetweenAllocators< TSizedHeapAllocator< FromIndexSize >, TSizedHeapAllocator< ToIndexSize > >
class	TSizedInlineAllocator< NumInlineElements, IndexSize, SecondaryAllocator >
class	TSizedInlineAllocator< NumInlineElements, IndexSize, SecondaryAllocator >::ForElementType< ElementType >
struct	TAllocatorTraits< TSizedInlineAllocator< NumInlineElements, IndexSize, SecondaryAllocator > >
class	TNonRelocatableInlineAllocator< NumInlineElements >
class	TNonRelocatableInlineAllocator< NumInlineElements >::ForElementType< ElementType >
struct	TAllocatorTraits< TNonRelocatableInlineAllocator< NumInlineElements > >
class	TFixedAllocator< NumInlineElements >
class	TFixedAllocator< NumInlineElements >::ForElementType< ElementType >
class	TSparseArrayAllocator< InElementAllocator, InBitArrayAllocator >
class	TAlignedSparseArrayAllocator< Alignment, InElementAllocator, InBitArrayAllocator >
class	TInlineSparseArrayAllocator< NumInlineElements, SecondaryAllocator >
class	TFixedSparseArrayAllocator< NumInlineElements >
struct	TCompactSetAllocator< InElementAllocator >
struct	TCompactSetAllocator< InElementAllocator >::AllocatorAlignment< ElementType >
struct	TAllocatorTraits< TCompactSetAllocator< InElementAllocator > >
struct	TInlineCompactSetAllocator< NumInlineElements, SecondaryAllocator >
struct	TInlineCompactSetAllocator< NumInlineElements, SecondaryAllocator >::AllocatorAlignment< ElementType >
struct	TFixedCompactSetAllocator< NumInlineElements >
struct	TFixedCompactSetAllocator< NumInlineElements >::AllocatorAlignment< ElementType >
class	TSparseSetAllocator< InSparseArrayAllocator, InHashAllocator, AverageNumberOfElementsPerHashBucket, BaseNumberOfHashBuckets, MinNumberOfHashedElements >
struct	TAllocatorTraits< TSparseSetAllocator< InSparseArrayAllocator, InHashAllocator, AverageNumberOfElementsPerHashBucket, BaseNumberOfHashBuckets, MinNumberOfHashedElements > >
class	TInlineSparseSetAllocator< NumInlineElements, SecondaryAllocator, AverageNumberOfElementsPerHashBucket, MinNumberOfHashedElements >
class	TFixedSparseSetAllocator< NumInlineElements, AverageNumberOfElementsPerHashBucket, MinNumberOfHashedElements >
class	FDefaultSparseSetAllocator
class	FDefaultCompactSetAllocator
class	FDefaultBitArrayAllocator
class	FDefaultSparseArrayAllocator
class	FDefaultSetAllocator
class	TSetAllocator< InSparseArrayAllocator, InHashAllocator, N >
class	TInlineSetAllocator< N, S, NN >
class	TFixedSetAllocator< N >
struct	TAllocatorTraits< TSizedDefaultAllocator< IndexSize > >
struct	TAllocatorTraits< FDefaultAllocator >
struct	TAllocatorTraits< FDefaultSetAllocator >
struct	TAllocatorTraits< FDefaultSparseSetAllocator >
struct	TAllocatorTraits< FDefaultBitArrayAllocator >
struct	TAllocatorTraits< FDefaultSparseArrayAllocator >
struct	TAllocatorTraits< TSparseArrayAllocator< InElementAllocator, InBitArrayAllocator > >
struct	TCanMoveBetweenAllocators< TSizedDefaultAllocator< FromIndexSize >, TSizedDefaultAllocator< ToIndexSize > >

Namespaces
namespace	UE
namespace	UE::Core
namespace	UE::Core::Private
	implementation
namespace	UE::Core::Private::CompactSetAllocatorHelpers

Concepts
concept	UE::Core::Private::CHasShrinkByDefault

Macros
#define	UE_ENABLE_ARRAY_SLACK_TRACKING   (0 && !WITH_EDITOR)
#define	CONTAINER_INITIAL_ALLOC_ZERO_SLACK   1
#define	UE_CONTAINER_SLACK_GROWTH_FACTOR_NUMERATOR   3
#define	UE_CONTAINER_SLACK_GROWTH_FACTOR_DENOMINATOR   8
#define	NumBitsPerDWORD   ((int32)32)
#define	NumBitsPerDWORDLogTwo   ((int32)5)
#define	DEFAULT_NUMBER_OF_ELEMENTS_PER_HASH_BUCKET   2
#define	DEFAULT_BASE_NUMBER_OF_HASH_BUCKETS   8
#define	DEFAULT_MIN_NUMBER_OF_HASHED_ELEMENTS   4
#define	UE_USE_COMPACT_SET_AS_DEFAULT   0

Typedefs
using	FDefaultAllocator = TSizedDefaultAllocator< 32 >
using	FHeapAllocator = TSizedHeapAllocator< 32 >
template<uint32 NumInlineElements, typename SecondaryAllocator = FDefaultAllocator>
using	TInlineAllocator = TSizedInlineAllocator< NumInlineElements, 32, SecondaryAllocator >
template<uint32 NumInlineElements, typename SecondaryAllocator = FDefaultAllocator64>
using	TInlineAllocator64 = TSizedInlineAllocator< NumInlineElements, 64, SecondaryAllocator >

Functions
template<typename SizeType >
UE_FORCEINLINE_HINT SizeType	DefaultCalculateSlackShrink (SizeType NewMax, SizeType CurrentMax, SIZE_T BytesPerElement, bool bAllowQuantize, uint32 Alignment=DEFAULT_ALIGNMENT)
template<typename SizeType >
UE_FORCEINLINE_HINT SizeType	DefaultCalculateSlackGrow (SizeType NewMax, SizeType CurrentMax, SIZE_T BytesPerElement, bool bAllowQuantize, uint32 Alignment=DEFAULT_ALIGNMENT)
template<typename SizeType >
UE_FORCEINLINE_HINT SizeType	DefaultCalculateSlackReserve (SizeType NewMax, SIZE_T BytesPerElement, bool bAllowQuantize, uint32 Alignment=DEFAULT_ALIGNMENT)
template<bool bFallback, typename AllocatorType >
consteval bool	UE::Core::Private::ShrinkByDefaultOr ()

Macro Definition Documentation

CONTAINER_INITIAL_ALLOC_ZERO_SLACK

#define CONTAINER_INITIAL_ALLOC_ZERO_SLACK   1

DEFAULT_BASE_NUMBER_OF_HASH_BUCKETS

#define DEFAULT_BASE_NUMBER_OF_HASH_BUCKETS   8

DEFAULT_MIN_NUMBER_OF_HASHED_ELEMENTS

#define DEFAULT_MIN_NUMBER_OF_HASHED_ELEMENTS   4

DEFAULT_NUMBER_OF_ELEMENTS_PER_HASH_BUCKET

#define DEFAULT_NUMBER_OF_ELEMENTS_PER_HASH_BUCKET   2

NumBitsPerDWORD

#define NumBitsPerDWORD   ((int32)32)

NumBitsPerDWORDLogTwo

#define NumBitsPerDWORDLogTwo   ((int32)5)

UE_CONTAINER_SLACK_GROWTH_FACTOR_DENOMINATOR

#define UE_CONTAINER_SLACK_GROWTH_FACTOR_DENOMINATOR   8

UE_CONTAINER_SLACK_GROWTH_FACTOR_NUMERATOR

#define UE_CONTAINER_SLACK_GROWTH_FACTOR_NUMERATOR   3

UE_ENABLE_ARRAY_SLACK_TRACKING

#define UE_ENABLE_ARRAY_SLACK_TRACKING   (0 && !WITH_EDITOR)

UE_USE_COMPACT_SET_AS_DEFAULT

#define UE_USE_COMPACT_SET_AS_DEFAULT   0

Typedef Documentation

FDefaultAllocator

using FDefaultAllocator = TSizedDefaultAllocator<32>

FHeapAllocator

using FHeapAllocator = TSizedHeapAllocator<32>

TInlineAllocator

template<uint32 NumInlineElements, typename SecondaryAllocator = FDefaultAllocator>

using TInlineAllocator = TSizedInlineAllocator<NumInlineElements, 32, SecondaryAllocator>

TInlineAllocator64

template<uint32 NumInlineElements, typename SecondaryAllocator = FDefaultAllocator64>

using TInlineAllocator64 = TSizedInlineAllocator<NumInlineElements, 64, SecondaryAllocator>

Function Documentation

DefaultCalculateSlackGrow()

template<typename SizeType >

UE_FORCEINLINE_HINT SizeType DefaultCalculateSlackGrow	(	SizeType	NewMax,
		SizeType	CurrentMax,
		SIZE_T	BytesPerElement,
		bool	bAllowQuantize,
		uint32	Alignment = DEFAULT_ALIGNMENT
	)

DefaultCalculateSlackReserve()

template<typename SizeType >

UE_FORCEINLINE_HINT SizeType DefaultCalculateSlackReserve	(	SizeType	NewMax,
		SIZE_T	BytesPerElement,
		bool	bAllowQuantize,
		uint32	Alignment = DEFAULT_ALIGNMENT
	)

DefaultCalculateSlackShrink()

template<typename SizeType >

UE_FORCEINLINE_HINT SizeType DefaultCalculateSlackShrink	(	SizeType	NewMax,
		SizeType	CurrentMax,
		SIZE_T	BytesPerElement,
		bool	bAllowQuantize,
		uint32	Alignment = DEFAULT_ALIGNMENT
	)