Method WriteFromReaderAndLimitedReader

pkg/buffer/buffer.go:505–530

WriteFromReaderAndLimitedReader is the same as WriteFromReader, but optimized to avoid allocations if a LimitedReader is passed in. This function clobbers the values of lr.

(r io.Reader, count int64, lr *io.LimitedReader)

//
// This function clobbers the values of lr.
func (b *Buffer) WriteFromReaderAndLimitedReader(r io.Reader, count int64, lr *io.LimitedReader) (int64, error) {
	if lr == nil {
		lr = &io.LimitedReader{}
	}

	var done int64
	for done < count {
		vsize := count - done
		if vsize > MaxChunkSize {
			vsize = MaxChunkSize
		}
		v := NewView(int(vsize))
		lr.R = r
		lr.N = vsize
		n, err := io.Copy(v, lr)
		b.Append(v)
		done += n
		if err == io.EOF {
			break
		}
		if err != nil {
			return done, err
		}
	}
	return done, nil
}

// ReadToWriter reads from the buffer into an io.Writer.
//