UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType > Class Template Reference

Inheritance diagram for UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >:

Public Member Functions
	TReferenceBatcher (FWorkerContext &InContext)
FORCEINLINE_DEBUGGABLE void	PushArray (TArray< UObject * > &Array)
FORCEINLINE_DEBUGGABLE void	PushArray (FStridedReferenceArray StridedArray)
template<class ViewType >
FORCEINLINE_DEBUGGABLE void	PushReferenceView (ViewType View)
FORCEINLINE_DEBUGGABLE void	PushReference (UnvalidatedReferenceType UnvalidatedReference)
FORCEINLINE_DEBUGGABLE void	FlushQueues ()

Additional Inherited Members
Static Protected Attributes inherited from UE::GC::FBatcherBase
static constexpr uint32	ArrayBatchSize = 32
static constexpr uint32	UnvalidatedBatchSize = 32
static constexpr uint32	ValidatedBatchSize = 1024
static constexpr uint32	ValidatedPrefetchAhead = 64

Detailed Description

template<class UnvalidatedReferenceType, class ValidatedReferenceType, class ProcessorType>
class UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >

Queues up memory indirection to avoid synchronous cache misses by prefetching data just in time.

Uses bounded queues to avoid branching, control temp memory consumption, allow compiler to generate vectorized code and make life easier for the branch predictor.

Array queue feed into "unvalidated" references queue, which feed into validated references queue, which gets processed when full.

Unvalidated means references that might be nullptr or part of the permanent object pool, neither of which require processing.

Constructor & Destructor Documentation

TReferenceBatcher()

template<class UnvalidatedReferenceType , class ValidatedReferenceType , class ProcessorType >

UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >::TReferenceBatcher ( FWorkerContext &  InContext )

inline

Member Function Documentation

FlushQueues()

template<class UnvalidatedReferenceType , class ValidatedReferenceType , class ProcessorType >

FORCEINLINE_DEBUGGABLE void UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >::FlushQueues ( )

inline

PushArray() [1/2]

template<class UnvalidatedReferenceType , class ValidatedReferenceType , class ProcessorType >

FORCEINLINE_DEBUGGABLE void UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >::PushArray ( FStridedReferenceArray  StridedArray )

inline

PushArray() [2/2]

template<class UnvalidatedReferenceType , class ValidatedReferenceType , class ProcessorType >

FORCEINLINE_DEBUGGABLE void UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >::PushArray ( TArray< UObject * > &  Array )

inline

PushReference()

template<class UnvalidatedReferenceType , class ValidatedReferenceType , class ProcessorType >

FORCEINLINE_DEBUGGABLE void UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >::PushReference ( UnvalidatedReferenceType  UnvalidatedReference )

inline

PushReferenceView()

template<class UnvalidatedReferenceType , class ValidatedReferenceType , class ProcessorType >

template<class ViewType >

FORCEINLINE_DEBUGGABLE void UE::GC::TReferenceBatcher< UnvalidatedReferenceType, ValidatedReferenceType, ProcessorType >::PushReferenceView ( ViewType  View )

inline

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The documentation for this class was generated from the following file:

• Engine/Source/Runtime/CoreUObject/Private/UObject/GarbageCollection.cpp