}

// Wait for the server to NOT be callable by the client. This allows us to simulate external traffic.
// This essentially just waits for the Sidecar to be applied, without sleeping.
func WaitUntilNotCallable(c echo.Instance, dest echo.Instance) error {
	accept := func(cfg *admin.ConfigDump) (bool, error) {
		validator := structpath.ForProto(cfg)
		for _, port := range dest.Config().Ports {

//
//go:linkname haveHighResSleep runtime.haveHighResSleep
var haveHighResSleep bool

// adjustDelay returns an adjusted delay based on the system sleep resolution.
// Go runtime uses different Windows timers for time.Now and sleeping.
// These can tick at different frequencies and can arrive out of sync.
// The effect can be seen, for example, as time.Sleep(100ms) is actually
// shorter then 100ms when measured as difference between time.Now before and

	// Leave the read end of the pipe blocking so that we will block
	// in sigNoteSleep.
	setNonblock(sigNoteWrite)
}

// sigNoteWakeup wakes up a thread sleeping on a note created by sigNoteSetup.
func sigNoteWakeup(*note) {
	var b byte
	write(uintptr(sigNoteWrite), unsafe.Pointer(&b), 1)
}

// sigNoteSleep waits for a note created by sigNoteSetup to be woken.

	if !netpollWakeSig.CompareAndSwap(0, 1) {
		return
	}

	// Use port_alert to put portfd into alert mode.
	// This will wake up all threads sleeping in port_getn on portfd,
	// and cause their calls to port_getn to return immediately.
	// Further, until portfd is taken out of alert mode,
	// all calls to port_getn will return immediately.

// Linux futex.
//
//	futexsleep(uint32 *addr, uint32 val)
//	futexwakeup(uint32 *addr)
//
// Futexsleep atomically checks if *addr == val and if so, sleeps on addr.
// Futexwakeup wakes up threads sleeping on addr.
// Futexsleep is allowed to wake up spuriously.

const (
	_FUTEX_PRIVATE_FLAG = 128
	_FUTEX_WAIT_PRIVATE = 0 | _FUTEX_PRIVATE_FLAG
	_FUTEX_WAKE_PRIVATE = 1 | _FUTEX_PRIVATE_FLAG
)

// Atomically,

	printControllerReset bool

	// targetCPUFraction is the target CPU overhead for the scavenger.
	targetCPUFraction float64

	// sleepRatio is the ratio of time spent doing scavenging work to
	// time spent sleeping. This is used to decide how long the scavenger
	// should sleep for in between batches of work. It is set by
	// critSleepController in order to maintain a CPU overhead of
	// targetCPUFraction.
	//

	probe := fs.Duration("probe", 0, "if nonzero, the 'hang' helper should write to stderr at this interval, and exit nonzero if a write fails")
	read := fs.Bool("read", false, "if true, the 'hang' helper should read stdin to completion before sleeping")
	fs.Parse(args[1:])

	pid := os.Getpid()

	if *subsleep != 0 {

		return
	}

	raise(sig)

	// Give the signal a chance to be delivered.
	// In almost all real cases the program is about to crash,
	// so sleeping here is not a waste of time.
	usleep(1000)

	// If the signal didn't cause the program to exit, restore the
	// Go signal handler and carry on.
	//
	// We may receive another instance of the signal before we

					}

					sleepTime := item.expectedDeleteTimes[i].timestamp - time.Since(startedAt) + increment
					if sleepTime < 0 {
						sleepTime = 0
					}
					t.Logf("Sleeping for %v", sleepTime)
					time.Sleep(sleepTime)
				}

				for delay, podName := range item.expectedDeleteTimes[i].names {
					deleted := false
					for _, action := range fakeClientset.Actions() {

				c <- true
			}()
		}
		for i := 0; i < BatchSize; i++ {
			<-c
		}

		// The goroutines have signaled via c that they are ready to exit.
		// Give them a chance to exit by sleeping. If we don't wait, we
		// might not reuse them on the next batch.
		time.Sleep(10 * time.Millisecond)
	}
	s1 := new(MemStats)
	ReadMemStats(s1)
	consumed := int64(s1.StackSys - s0.StackSys)