mmap

package
Version: v0.0.0-...-8a230f1 Latest Latest
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Published: Nov 29, 2021 License: BSD-3-Clause Imports: 6 Imported by: 32

Documentation

Overview

Package mmap provides a way to memory-map a file.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type ReaderAt

type ReaderAt struct {
	// contains filtered or unexported fields
}

ReaderAt reads a memory-mapped file.

Like any io.ReaderAt, clients can execute parallel ReadAt calls, but it is not safe to call Close and reading methods concurrently.

func Open

func Open(filename string) (*ReaderAt, error)

Open memory-maps the named file for reading.

func (*ReaderAt) At

func (r *ReaderAt) At(i int) byte

At returns the byte at index i.

func (*ReaderAt) Close

func (r *ReaderAt) Close() error

Close closes the reader.

func (*ReaderAt) Len

func (r *ReaderAt) Len() int

Len returns the length of the underlying memory-mapped file.

func (*ReaderAt) ReadAt

func (r *ReaderAt) ReadAt(p []byte, off int64) (int, error)

ReadAt implements the io.ReaderAt interface.

Source Files

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