readerutil

Documentation

Overview

Package readerutil provides and operates on io.Readers.

Index

• func ReaderSize(r io.Reader) (size int64, ok bool)
• type CountingReader
  • func (cr CountingReader) Read(p []byte) (n int, err error)

Functions

func ReaderSize

func ReaderSize(r io.Reader) (size int64, ok bool)

ReaderSize tries to determine the length of r.

Types

type CountingReader

type CountingReader struct {
	Reader io.Reader
	N      *int64
}

CountingReader wraps a Reader, incrementing N by the number of bytes read. No locking is performed.

func (CountingReader) Read

func (cr CountingReader) Read(p []byte) (n int, err error)