enc := json.NewEncoder(&buf)
		for {
			select {
			case <-doneCh:
				return
			case v, ok := <-subChT:
				if !ok {
					return
				}
				buf.Reset()
				err := enc.Encode(v)
				if err != nil {
					return
				}

				select {
				case subCh <- append(GetByteBuffer()[:0], buf.Bytes()...):
					continue
				case <-doneCh:
					return
				}
			}
		}
	}()

			<-gate
		}()
	}
}

func ringf(in <-chan int, out chan<- int, donec chan bool) {
	for {
		var n int
		select {
		case <-donec:
			return
		case n = <-in:
		}
		if n == 0 {
			close(donec)
			return
		}
		out <- n - 1
	}
}

func threadRing(bufsize int) {
	const N = 100
	donec := make(chan bool)
	one := make(chan int, bufsize) // will be input to thread 1

	os.Exit(m.Run())
}

func TestCountingWriteOnceSet(t *testing.T) {
	oldTime := time.Now()
	cval := &oldTime
	doneCh := make(chan struct{})
	now := time.Now()
	clock, counter := testeventclock.NewFake(now, 0, nil)
	var lock sync.Mutex
	wr := NewCountingWriteOnce(counter, &lock, nil, doneCh, cval)
	gots := make(chan interface{}, 1)
	goGetExpectNotYet(t, clock, counter, wr, gots, "Set")
	aval := &now
	func() {

	}
	beforeStart := time.Now()
	if err := cmd.Start(); err != nil {
		t.Fatalf("Failed to start command: %v", err)
	}

	waiting := false
	doneCh := make(chan error, 1)
	t.Cleanup(func() {
		cmd.Process.Kill()
		if waiting {
			<-doneCh
		} else {
			cmd.Wait()
		}
	})

	// Wait for After1 to close its stdout so that we know the runtime's SIGIO
	// handler is registered.

func (writer *messageWriter) Finish(bytesScanned, bytesProcessed int64) error {
	select {
	case <-writer.doneCh:
		return fmt.Errorf("messageWriter is done")
	default:
		writer.finBytesScanned = bytesScanned
		writer.finBytesProcessed = bytesProcessed
		close(writer.payloadCh)
		// Wait until the `start` go-routine is done.
		<-writer.doneCh
		return nil
	}
}

		}

		if !done {
			// Drain channel.
			for range s.responses {
			}
		}
	}()
	doneCh := s.ctx.Done()
	for {
		select {
		case <-doneCh:
			if err := context.Cause(s.ctx); !errors.Is(err, errStreamEOF) {
				return err
			}
			// Fall through to be sure we have returned all responses.
			doneCh = nil
		case resp, ok := <-s.responses:
			if !ok {
				done = true
				return nil
			}

	g.Expect(w.Networks()).To(Equal(&n))

	doneCh := make(chan struct{}, 1)

	var newN *meshconfig.MeshNetworks
	w.AddNetworksHandler(func() {
		newN = w.Networks()
		close(doneCh)
	})

	// Change the file to trigger the update.
	n.Networks["test"] = &meshconfig.Network{}
	writeMessage(t, path, &n)

	select {
	case <-doneCh:
		g.Expect(newN).To(Equal(&n))
		g.Expect(w.Networks()).To(Equal(newN))

	w := newWatcher(t, path, multi)
	assert.Equal(t, w.Mesh(), m)

	doneCh := make(chan struct{}, 1)

	var newM *meshconfig.MeshConfig
	w.AddMeshHandler(func() {
		newM = w.Mesh()
		close(doneCh)
	})

	// Change the file to trigger the update.
	m.IngressClass = "foo"
	writeMessage(t, path, m)

	select {
	case <-doneCh:
		assert.Equal(t, newM, m)
		assert.Equal(t, w.Mesh(), newM)
		break

type customDoneContext struct {
	Context
	donec chan struct{}
}

func (c *customDoneContext) Done() <-chan struct{} {
	return c.donec
}

func TestCustomContextPropagation(t *testing.T) {
	cause := errors.New("TestCustomContextPropagation")
	donec := make(chan struct{})
	ctx1, cancel1 := WithCancelCause(Background())
	ctx2 := &customDoneContext{
		Context: ctx1,
		donec:   donec,
	}

				}
				return
			}
		}
	}()
	return func(err error) {
		if doneCh == nil {
			return
		}

		// Indicate we are ready to write.
		doneCh <- err

		// Wait for channel to be closed so we don't race on writes.
		<-doneCh

		// Clear so we can be called multiple times without crashing.
		doneCh = nil
	}, &closeNotifier{rc: r.Body, done: bodyDoneCh}
}