Function newHashReaderWrapper

utils.go:718–724

newHashReaderWrapper will hash all reads done through r. When r returns io.EOF the done function will be called with the sum.

(r io.Reader, h hash.Hash, done func(hash []byte))

// newHashReaderWrapper will hash all reads done through r.
// When r returns io.EOF the done function will be called with the sum.
func newHashReaderWrapper(r io.Reader, h hash.Hash, done func(hash []byte)) *hashReaderWrapper {
	return &hashReaderWrapper{
		r:    r,
		h:    h,
		done: done,
	}
}

type hashReaderWrapper struct {
	r    io.Reader