r.isFull = false
}

// WriteCloser returns a WriteCloser that writes to the ring buffer.
// When the returned WriteCloser is closed, it will wait for all data to be read before returning.
func (r *RingBuffer) WriteCloser() io.WriteCloser {
	return &writeCloser{RingBuffer: r}
}

type writeCloser struct {
	*RingBuffer
}

// Close provides a close method for the WriteCloser.
func (wc *writeCloser) Close() error {

// uploaded with the single-part PUT API. The offset and length
// specify the requested range.
func DecryptSinglePart(w io.Writer, offset, length int64, key ObjectKey) io.WriteCloser {
	const PayloadSize = 1 << 16 // DARE 2.0
	w = ioutil.LimitedWriter(w, offset%PayloadSize, length)

	decWriter, err := sio.DecryptWriter(w, sio.Config{Key: key[:]})
	if err != nil {

	UserTags string

	// List of individual parts, maximum size of upto 10,000
	Parts []ObjectPartInfo `json:"-"`

	// Implements writer and reader used by CopyObject API
	Writer       io.WriteCloser `json:"-" msg:"-"`
	Reader       *hash.Reader   `json:"-" msg:"-"`
	PutObjReader *PutObjReader  `json:"-" msg:"-"`

	metadataOnly bool
	versionOnly  bool // adds a new version, only used by CopyObject