state = c.state.load()
				}
				debugPrintf("Add %q += %d: nil extra=%d\n", c.name, n, state.extra())
			} else {
				sum := c.add(uint64(n))
				debugPrintf("Add %q += %d: count=%d\n", c.name, n, sum)
			}
			c.releaseReader(state)
			return

		case state.locked():
			if !c.state.update(&state, state.addExtra(uint64(n))) {
				continue
			}

		if next == nil {
			next = &f.end
		}
		debugPrintf("register %s next %p\n", c.Name(), next)
		if !wroteNext {
			if !c.next.CompareAndSwap(nil, next) {
				debugPrintf("register %s cas failed %p\n", c.Name(), c.next.Load())
				continue
			}
			wroteNext = true
		} else {
			c.next.Store(next)
		}
		if f.counters.CompareAndSwap(head, c) {
			debugPrintf("registered %s %p\n", c.Name(), f.counters.Load())
			return

// m.respMu must be held.
func (m *muxClient) sendLocked(msg message) error {
	dst := GetByteBufferCap(msg.Msgsize())
	msg.Seq = m.SendSeq
	msg.MuxID = m.MuxID
	msg.Flags |= m.BaseFlags
	if debugPrint {
		fmt.Println("Client sending", &msg, "to", m.parent.Remote)
	}
	m.SendSeq++

	dst, err := msg.MarshalMsg(dst)
	if err != nil {
		return err
	}
	if msg.Flags&FlagSubroute != 0 {

	start := time.Now()
	defer func() {
		if debugPrint {
			fmt.Println("Mux", m.ID, "Handler took", time.Since(start).Round(time.Millisecond))
		}
		if r := recover(); r != nil {
			gridLogIf(ctx, fmt.Errorf("grid handler (%v) panic: %v", msg.Handler, r))
			err := RemoteErr(fmt.Sprintf("handler panic: %v", r))
			handlerErr = &err
		}
		if debugPrint {

		}
		dialer.TLSConfig = c.tlsConfig
		dialStarted := time.Now()
		if debugPrint {
			fmt.Println(c.Local, "Connecting to ", toDial)
		}
		conn, br, _, err := dialer.Dial(c.ctx, toDial)
		if br != nil {
			ws.PutReader(br)
		}
		c.connMu.Lock()
		c.debugOutConn = conn
		c.connMu.Unlock()
		retry := func(err error) {
			if debugPrint {
				fmt.Printf("%v Connecting to %v: %v. Retrying.\n", c.Local, toDial, err)

		defer func() {
			if debugPrint {
				fmt.Printf("grid: Handler returning from: %v %v\n", req.Method, req.URL)
			}
			if r := recover(); r != nil {
				debug.PrintStack()
				err := fmt.Errorf("grid: panic: %v\n", r)
				gridLogIf(context.Background(), err, err.Error())
				w.WriteHeader(http.StatusInternalServerError)
			}
		}()
		if debugPrint {

	"github.com/minio/mux"
)

//go:generate stringer -type=debugMsg $GOFILE

// debugMsg is a debug message for testing purposes.
// may only be used for tests.
type debugMsg int

const (
	debugPrint = false
	debugReqs  = false
)

const (
	debugShutdown debugMsg = iota
	debugKillInbound
	debugKillOutbound
	debugWaitForExit
	debugSetConnPingDuration
	debugSetClientPingDuration
	debugAddToDeadline

func dataAsString(data []byte) string {
	dataString := string(data)
	if !strings.HasPrefix(dataString, "{") {
		dataString = "\n" + hex.Dump(data)
		legacyproto.NewBuffer(make([]byte, 0, 1024)).DebugPrint("decoded object", data)
	}
	return dataString
}

// checkForNilValues is a helper to check for nil
// values in the runtime objects.
// This part only converts the interface to a reflect.Value.

// protocol buffers.
func dataAsString(data []byte) string {
	dataString := string(data)
	if !strings.HasPrefix(dataString, "{") {
		dataString = "\n" + hex.Dump(data)
		proto.NewBuffer(make([]byte, 0, 1024)).DebugPrint("decoded object", data)
	}
	return dataString