FGrowOnlySpanAllocator Class Reference

#include <GrowOnlySpanAllocator.h>

Public Member Functions
	FGrowOnlySpanAllocator ()
ENGINE_API int32	Allocate (int32 Num)
ENGINE_API void	Free (int32 BaseOffset, int32 Num)
int32	GetSparselyAllocatedSize () const
int32	GetMaxSize () const
int32	GetNumFreeSpans () const
ENGINE_API void	BeginDeferMerges ()
ENGINE_API void	EndDeferMerges ()

Constructor & Destructor Documentation

FGrowOnlySpanAllocator()

FGrowOnlySpanAllocator::FGrowOnlySpanAllocator ( )

inline

Member Function Documentation

Allocate()

int32 FGrowOnlySpanAllocator::Allocate

(

int32

Num

)

BeginDeferMerges()

void FGrowOnlySpanAllocator::BeginDeferMerges

(

)

Between these calls to Free just appends the allocation to the free list, rather than trying to merge with existing allocations. At EndDeferMerges the free list is consolidated by sorting and merging all spans. This amortises the cost of the merge over many calls.

EndDeferMerges()

void FGrowOnlySpanAllocator::EndDeferMerges

(

)

Free()

void FGrowOnlySpanAllocator::Free	(	int32	BaseOffset,
		int32	Num
	)

GetMaxSize()

int32 FGrowOnlySpanAllocator::GetMaxSize ( ) const

inline

GetNumFreeSpans()

int32 FGrowOnlySpanAllocator::GetNumFreeSpans ( ) const

inline

GetSparselyAllocatedSize()

int32 FGrowOnlySpanAllocator::GetSparselyAllocatedSize ( ) const

inline

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

• Engine/Source/Runtime/Engine/Public/GrowOnlySpanAllocator.h
• Engine/Source/Runtime/Engine/Private/GrowOnlySpanAllocator.cpp