readerat

Documentation

Overview

Package readerat adapts seekable streams to random-access readers for converters whose underlying formats (zip, pdf) need io.ReaderAt.

Index

• Variables
• func From(rs io.ReadSeeker) (io.ReaderAt, int64, error)
• func FromLimit(rs io.ReadSeeker, maxSize int64) (io.ReaderAt, int64, error)

Variables

var ErrTooLarge = errors.New("readerat: stream exceeds size limit")

ErrTooLarge is returned by FromLimit when the stream exceeds its limit.

Functions

func From

func From(rs io.ReadSeeker) (io.ReaderAt, int64, error)

From returns rs as an io.ReaderAt plus its size, buffering into memory only when the concrete type doesn't already support ReadAt.

func FromLimit

func FromLimit(rs io.ReadSeeker, maxSize int64) (io.ReaderAt, int64, error)

FromLimit is like From but returns ErrTooLarge before buffering when the seekable stream exceeds maxSize. maxSize must be positive.