utils

Documentation

Index

• type OffsetReader
  • func NewOffsetReader(r io.ReaderAt, off int64) *OffsetReader
  • func (r OffsetReader) Offset() int64
  • func (r *OffsetReader) Read(p []byte) (int, error)
• type OffsetWriter
  • func NewOffsetWriter(w io.WriterAt, off int64) *OffsetWriter
  • func (r OffsetWriter) Offset() int64
  • func (w *OffsetWriter) Write(p []byte) (int, error)

Types

type OffsetReader

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

OffsetReader translates ReaderAt to Reader given a starting offset

func NewOffsetReader

func NewOffsetReader(r io.ReaderAt, off int64) *OffsetReader

func (OffsetReader) Offset

func (r OffsetReader) Offset() int64

Returns the current offset

func (*OffsetReader) Read

func (r *OffsetReader) Read(p []byte) (int, error)

Uses underlying ReaderAt's ReadAt to read data, increment the offset by the amount of bytes read and returns any underlying error

type OffsetWriter

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

OffsetWriter translates WriterAt to Writer given a starting offset

func NewOffsetWriter

func NewOffsetWriter(w io.WriterAt, off int64) *OffsetWriter

func (OffsetWriter) Offset

func (r OffsetWriter) Offset() int64

Returns the current offset

func (*OffsetWriter) Write

func (w *OffsetWriter) Write(p []byte) (int, error)

Uses underlying WriterAt's WriteAt to write data, increment the offset by the amount of bytes written and returns any underlying error