{0, 1, io.EOF, nil, nil},
}

func TestReaderWriteToErrors(t *testing.T) {
	for i, rw := range errorWriterToTests {
		r := NewReader(rw)
		if _, err := r.WriteTo(rw); err != rw.expected {
			t.Errorf("r.WriteTo(errorWriterToTests[%d]) = _, %v, want _,%v", i, err, rw.expected)
		}
	}
}

func TestWriterReadFrom(t *testing.T) {
	ws := []func(io.Writer) io.Writer{

	if !s.IsValid(w, r) {
		return
	}
	rw := streamHTTPResponse(w)
	defer func() {
		if r := recover(); r != nil {
			debug.PrintStack()
			rw.CloseWithError(fmt.Errorf("panic: %v", r))
		}
	}()

	var req ReadMultipleReq
	mr := msgpNewReader(r.Body)
	defer readMsgpReaderPoolPut(mr)
	err := req.DecodeMsg(mr)
	if err != nil {
		rw.CloseWithError(err)
		return
	}

type LRWMutex struct {
	id          string
	source      string
	isWriteLock bool
	ref         int
	mu          sync.Mutex // Mutex to prevent multiple simultaneous locks
}

// NewLRWMutex - initializes a new lsync RW mutex.
func NewLRWMutex() *LRWMutex {
	return &LRWMutex{}
}

// Lock holds a write lock on lm.
//
// If the lock is already in use, the calling go routine
// blocks until the mutex is available.

// "[fe80::d806:a55d:eb1b:49cc%vEthernet (vmxnet3 Ethernet Adapter - Virtual Switch)]:64692"
func ipv6fix(clientIP string) string {
	return strings.Split(clientIP, "%")[0]
}

func (rw *headerRewriter) Rewrite(req *http.Request) {
	if clientIP, _, err := net.SplitHostPort(req.RemoteAddr); err == nil {
		clientIP = ipv6fix(clientIP)
		if req.Header.Get(xRealIP) == "" {
			req.Header.Set(xRealIP, clientIP)

}

func (g *Granted) isLocked() bool {
	return isLocked(g.lockUID)
}

func isLocked(uid string) bool {
	return len(uid) > 0
}

// NewDRWMutex - initializes a new dsync RW mutex.
func NewDRWMutex(clnt *Dsync, names ...string) *DRWMutex {
	restClnts, _ := clnt.GetLockers()
	sort.Strings(names)
	return &DRWMutex{
		writeLocks:           make([]string, len(restClnts)),

					if err == nil {
						fi, err = fileInfoFromRaw(rfi, bucket, object, readData, opts.InclFreeVersions, true)
					}
				}

				rw.Lock()
				rawArr[i] = rfi
				metaArr[i], errs[i] = fi, err
				rw.Unlock()

				done <- err == nil
			}(i, disk)
		}

		wg.Wait()
		xioutil.SafeClose(done)

		fi, ok := <-mrfCheck
		if !ok {
			return
		}

	}

	// Check that OpenRaw returns the correct byte segment
	rw, err := f.OpenRaw()
	if err != nil {
		t.Errorf("%v: OpenRaw error=%v", f.Name, err)
		return
	}
	start, err := f.DataOffset()
	if err != nil {
		t.Errorf("%v: DataOffset error=%v", f.Name, err)
		return
	}
	got, err := io.ReadAll(rw)
	if err != nil {
		t.Errorf("%v: OpenRaw ReadAll error=%v", f.Name, err)
		return
	}

				} else {
					writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
				}
				return
			}
			nr := httptest.NewRecorder()
			rw := xhttp.NewResponseRecorder(nr)
			rw.LogErrBody = true
			rw.LogAllBody = true
			rreq.SelectParameters.Evaluate(rw)
			rreq.SelectParameters.Close()
			return
		}
		opts := ObjectOptions{
			Transition: TransitionOptions{
				RestoreRequest: rreq,

		wsReader := wsutil.Reader{
			Source:          conn,
			State:           c.side,
			CheckUTF8:       true,
			SkipHeaderCheck: false,
			OnIntermediate:  controlHandler,
		}
		readDataInto := func(dst []byte, rw io.ReadWriter, s ws.State, want ws.OpCode) ([]byte, error) {
			dst = dst[:0]
			for {
				hdr, err := wsReader.NextFrame()
				if err != nil {
					return nil, err
				}
				if hdr.OpCode.IsControl() {