// 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:

		}
		handler.ServeHTTP(w, req)
	})
}

// isClosed is a convenience function that simply check if the given chan has been closed
func isClosed(ch <-chan struct{}) bool {
	select {
	case <-ch:
		return true
	default:
		return false
	}

// license that can be found in the LICENSE file.

package signal_test

import (
	"fmt"
	"os"
	"os/signal"
)

func ExampleNotify() {
	// Set up channel on which to send signal notifications.
	// We must use a buffered channel or risk missing the signal
	// if we're not ready to receive when the signal is sent.
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)

	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)
					}

limitations under the License.
*/

package rest

import (
	"context"
	"testing"
	"time"
)

func TestContextFromChannelAndMaxWaitDurationWithChannelClosed(t *testing.T) {
	stopCh := make(chan struct{})
	ctx, cancel := contextFromChannelAndMaxWaitDuration(stopCh, time.Hour)
	defer cancel()

	select {
	case <-ctx.Done():
		t.Fatalf("Expected the derived context to be not cancelled, but got: %v", ctx.Err())

	_ = 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" */