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> Unreal Engine API Reference > Runtime > Core > Async > IMappedFileRegion > IMappedFileRegion::PreloadHint

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IMappedFileRegion::PreloadHint

Synchronously preload part or all of the mapped region.

Windows

MacOS

Linux

References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Async/MappedFileHandle.h
Include	#include "Async/MappedFileHandle.h"

Syntax

virtual void PreloadHint
(
int64 PreloadOffset,
int64 BytesToPreload
)

Remarks

Synchronously preload part or all of the mapped region. Typically this is done by reading a byte from each CPU page. This is only a hint, some platforms might ignore it. There are not guarantees how long this data will stay in memory.

Parameters

Parameter	Description
PreloadOffset	Offset into this region to preload
BytesToPreload	number of bytes to preload. This is clamped to the size of the mapped region

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