ioutil

Documentation

Overview

Package ioutil implements I/O utility functions.

Index

• type SeekingReaderAt
  • func NewSeekingReaderAt(r io.ReadSeeker) *SeekingReaderAt
  • func (s *SeekingReaderAt) Close() error
  • func (s *SeekingReaderAt) ReadAt(p []byte, off int64) (n int, _ error)
  • func (s *SeekingReaderAt) Size() (int64, error)
• type SizeReaderAt
  • func NewSizeReaderAt(r io.ReaderAt) SizeReaderAt

Types

type SeekingReaderAt

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

SeekingReaderAt implements io.ReaderAt through an underlying io.ReadSeeker.

func NewSeekingReaderAt

func NewSeekingReaderAt(r io.ReadSeeker) *SeekingReaderAt

NewSeekingReaderAt creates a new SeekingReaderAt. The SeekingReaderAt takes ownership of r and will modify its seek offset, so callers should not use r after this call.

func (*SeekingReaderAt) Close

func (s *SeekingReaderAt) Close() error

ReadAt implements io.Closer.

func (*SeekingReaderAt) ReadAt

func (s *SeekingReaderAt) ReadAt(p []byte, off int64) (n int, _ error)

ReadAt implements io.ReaderAt.

func (*SeekingReaderAt) Size

func (s *SeekingReaderAt) Size() (int64, error)

Size implements SizeReaderAt.

type SizeReaderAt

type SizeReaderAt interface {
	Size() (int64, error)
	io.ReaderAt
}

A SizeReaderAt is a ReaderAt with a Size method. Use NewSizeReaderAt to adapt different Size interfaces.

func NewSizeReaderAt

func NewSizeReaderAt(r io.ReaderAt) SizeReaderAt

NewSizeReaderAt returns a SizeReaderAt given an io.ReaderAt that implements one of:

• Size() (int64, error)
• Size() int64
• Len() int
• Stat() (fs.FileInfo, error)
• Seek(offset int64, whence int) (int64, error)