mmap

Documentation

Index

• func Map(prot int, flags int, length int64, f *os.File) ([]byte, error)
• func Remap(f *os.File, data []byte, newSize int64) ([]byte, error)
• func Sync(data []byte) error
• func Unmap(data []byte) error

Functions

func Map

func Map(
	prot int,
	flags int,
	length int64,
	f *os.File,
) (
	[]byte,
	error,
)

Map creates a memory map of the given file.

func Remap

func Remap(
	f *os.File,
	data []byte,
	newSize int64,
) ([]byte, error)

Remap truncates the file to `newSize` and returns a new memory map for the file.

func Sync

func Sync(data []byte) error

Sync writes the mmapped data to disk before returning.

func Unmap

func Unmap(data []byte) error

Unmap unmaps the data obtained by Map.