// results when they are ready.
func (g *Group) DoChan(key string, fn func() (any, error)) <-chan Result {
	ch := make(chan Result, 1)
	g.mu.Lock()
	if g.m == nil {
		g.m = make(map[string]*call)
	}
	if c, ok := g.m[key]; ok {
		c.dups++
		c.chans = append(c.chans, ch)
		g.mu.Unlock()
		return ch
	}
	c := &call{chans: []chan<- Result{ch}}
	c.wg.Add(1)
	g.m[key] = c
	g.mu.Unlock()

	go g.doCall(c, key, fn)

			err = nil
		case 3:
			configs = updateConfigSet
		case 6:
			configs = []*config.Config{}
		}

		callCount++
		return configs, err
	}
	mon := NewMonitor("", store, someConfigFunc, "")
	stop := make(chan struct{})
	defer func() { close(stop) }()
	mon.Start(stop)

	go func() {
		for i := 0; i < 10; i++ {
			select {
			case <-stop:
				return
			case mon.updateCh <- struct{}{}:
			}

				typ, n, t1, 2*n, t2))
		}
	}
}

func main() {
	checkLinear("chanSelect", 1000, func(n int) {
		const messages = 10
		c := make(chan bool) // global channel
		var a []chan bool    // local channels for each goroutine
		for i := 0; i < n; i++ {
			d := make(chan bool)
			a = append(a, d)
			go func() {
				for j := 0; j < messages; j++ {
					// queue ourselves on the global channel
					select {
					case <-c:

	total *metrics.Desc
}

func (d resourceLifecycleDescriptors) Describe(ch chan<- *metrics.Desc) {
	ch <- d.total
}

type resourceMetricsDescriptors struct {
	requests resourceLifecycleDescriptors
	limits   resourceLifecycleDescriptors
}

func (d resourceMetricsDescriptors) Describe(ch chan<- *metrics.Desc) {
	d.requests.Describe(ch)
	d.limits.Describe(ch)
}

	"istio.io/istio/pkg/log"
)

func main() {
	// Create context that cancels on termination signal
	ctx, cancel := context.WithCancel(context.Background())
	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
	go func(sigChan chan os.Signal, cancel context.CancelFunc) {
		sig := <-sigChan
		log.Infof("Exit signal received: %s", sig)
		cancel()
	}(sigChan, cancel)

	rootCmd := cmd.GetCommand()

func (c *cachedCond) Usage() *CondUsage { return &c.usage }

func (c *cachedCond) Eval(_ *State, suffix string) (bool, error) {
	for {
		var ready chan struct{}

		v, loaded := c.m.Load(suffix)
		if !loaded {
			ready = make(chan struct{})
			v, loaded = c.m.LoadOrStore(suffix, (<-chan struct{})(ready))

			if !loaded {
				inPanic := true
				defer func() {
					if inPanic {
						c.m.Delete(suffix)
					}

	_ = b == b
	_ = a /* ERROR "[10]func() cannot be compared" */ == a
	_ = l /* ERROR "slice can only be compared to nil" */ == l
	_ = s /* ERROR "struct containing []byte cannot be compared" */ == s
	_ = p == p
	_ = f /* ERROR "func can only be compared to nil" */ == f
	_ = i == i
	_ = m /* ERROR "map can only be compared to nil" */ == m
	_ = c == c

	_ = b == nil /* ERROR "mismatched types" */

	// All responses *must* be read by the caller until either an error is returned or the channel is closed.
	// Canceling the context will cause the context cancellation error to be returned.
	responses <-chan Response
	cancel    context.CancelCauseFunc

	// Requests sent to the server.
	// If the handler is defined with 0 incoming capacity this will be nil.
	// Channel *must* be closed to signal the end of the stream.

	defer ls.teardown()

	if g, w := ls.Listener.Addr().Network(), "tcp"; g != w {
		t.Fatalf("Network type mismatch: got %q, want %q", g, w)
	}

	genericCh := make(chan error)
	mptcpCh := make(chan error)
	handler := func(ls *localServer, ln Listener) {
		ls.transponder(ln, genericCh)
		postAcceptMPTCP(ls, mptcpCh)
	}
	if err := ls.buildup(handler); err != nil {
		t.Fatal(err)
	}

	parallel := flag.Lookup("test.parallel").Value.(flag.Getter).Get().(int)

	// ready is a synchronization mechanism that causes subtests to execute
	// round robin.
	ready := make([]chan bool, parallel)
	for i := range ready {
		ready[i] = make(chan bool, 1)
	}
	ready[0] <- true

	for i := range ready {
		i := i
		t.Run(fmt.Sprintf("sub-%d", i), func(t *testing.T) {
			t.Parallel()
			for j := 0; j < 2; j++ {