}

func (rd *reparseData) addSubstituteNameNoNUL(name string) {
	rd.substituteName.offset, rd.substituteName.length = rd.addStringNoNUL(name)
}

func (rd *reparseData) addPrintNameNoNUL(name string) {
	rd.printName.offset, rd.printName.length = rd.addStringNoNUL(name)
}

// pathBuffeLen returns length of rd pathBuf in bytes.
func (rd *reparseData) pathBuffeLen() uint16 {
	return uint16(len(rd.pathBuf)) * 2
}

}

func (cts *ctlrTestState) addHeldRequest(plName string, rd RequestDigest, finishCh chan struct{}) {
	cts.lock.Lock()
	defer cts.lock.Unlock()
	hrs := cts.heldRequestsMap[plName]
	hrs = append(hrs, heldRequest{rd, finishCh})
	cts.heldRequestsMap[plName] = hrs
	if testDebugLogs {
		cts.t.Logf("Holding %#+v for %s, count:=%d", rd, plName, len(hrs))
	}
}

// size, it returns the underlying [Reader].
func NewReaderSize(rd io.Reader, size int) *Reader {
	// Is it already a Reader?
	b, ok := rd.(*Reader)
	if ok && len(b.buf) >= size {
		return b
	}
	r := new(Reader)
	r.reset(make([]byte, max(size, minReadBufferSize)), rd)
	return r
}

// NewReader returns a new [Reader] whose buffer has the default size.
func NewReader(rd io.Reader) *Reader {
	return NewReaderSize(rd, defaultBufSize)

	defer ticker.Stop()

	var rd []os.DirEntry

	for {
		select {
		case <-ticker.C:
			rd, err := os.ReadDir(dir)
			if err != nil {
				t.Fatalf("Unable to read dir: %v", err)
			}
			if len(rd) == o.RotationMaxBackups+1 {
				// perfect, we're done
				return
			}
		case <-time.After(5 * time.Second):
			for _, f := range rd {
				t.Log(f.Name())
			}

			// catch-all flow schema.
			panic(fmt.Sprintf("no fallback catch-all flow schema found for request %#+v and user %#+v", rd.RequestInfo, rd.User))
		}
		selectedFlowSchema = catchAllFlowSchema
		klog.Warningf("no match found for request %#+v and user %#+v; selecting catchAll=%s as fallback flow schema", rd.RequestInfo, rd.User, fcfmt.Fmt(selectedFlowSchema))
	}
	plName := selectedFlowSchema.Spec.PriorityLevelConfiguration.Name

}

func BenchmarkCopyNSmall(b *testing.B) {
	bs := bytes.Repeat([]byte{0}, 512+1)
	rd := bytes.NewReader(bs)
	buf := new(Buffer)
	b.ResetTimer()

	for i := 0; i < b.N; i++ {
		CopyN(buf, rd, 512)
		rd.Reset(bs)
	}
}

func BenchmarkCopyNLarge(b *testing.B) {
	bs := bytes.Repeat([]byte{0}, (32*1024)+1)
	rd := bytes.NewReader(bs)
	buf := new(Buffer)
	b.ResetTimer()

	for i := 0; i < b.N; i++ {

	}
}

func mergeServerCtxtFromConfigFile(configFile string, ctxt *serverCtxt) error {
	rd, err := xioutil.ReadFile(configFile)
	if err != nil {
		return err
	}

	cfReader := bytes.NewReader(rd)

	cv := config.ServerConfigVersion{}
	if err = yaml.Unmarshal(rd, &cv); err != nil {
		return err
	}

	switch cv.Version {
	case "v1", "v2":
	default:

		// This will return when the write side is closed.
		n, err := syscall.Read(int(rd.Fd()), data)
		if !(n == 0 && err == nil) {
			t.Errorf("expected read to return 0, got %d, %s", n, err)
		}

		// Clean up rd and also ensure rd stays reachable so
		// it doesn't get closed by GC.
		rd.Close()
		wg.Done()
	}()
	<-ready

	// Loop here to give the goroutine more time to block in read.

        if (childUrlSet != null) {
            // add an url
            try {
                storeChildUrls(childUrlSet.stream().filter(rd -> StringUtil.isNotBlank(rd.getUrl())).collect(Collectors.toSet()),
                        urlQueue.getUrl(), urlQueue.getDepth() != null ? urlQueue.getDepth() + 1 : 1);
            } catch (final Throwable t) {

	Subscribed sets.String
	// Unsubscribed indicates the client no longer requires these resources
	Unsubscribed sets.String
}

var emptyResourceDelta = ResourceDelta{}

func (rd ResourceDelta) IsEmpty() bool {
	return len(rd.Subscribed) == 0 && len(rd.Unsubscribed) == 0
}

type Resources = []*discovery.Resource

func ResourcesToAny(r Resources) []*anypb.Any {
	a := make([]*anypb.Any, 0, len(r))
	for _, rr := range r {