log.Infof("Envoy exited with status %v", status.err)
			log.Infof("Graceful termination logic ended prematurely, envoy process terminated early")
			return
		case <-time.After(a.terminationDrainDuration):
			log.Infof("Graceful termination period complete, terminating remaining proxies.")
			a.abortCh <- errAbort
		}
	}
	status := <-a.statusCh
	if status.err == errAbort {
		log.Infof("Envoy aborted normally")
	} else {

func GC() {
	// We consider a cycle to be: sweep termination, mark, mark
	// termination, and sweep. This function shouldn't return
	// until a full cycle has been completed, from beginning to
	// end. Hence, we always want to finish up the current cycle
	// and start a new one. That means:
	//
	// 1. In sweep termination, mark, or mark termination of cycle
	// N, wait until mark termination N completes and transitions
	// to sweep N.
	//

		reason              containerKillReason
		expectedGracePeriod int64
	}{
		{
			name: "default termination grace period",
			pod: &v1.Pod{
				Spec: v1.PodSpec{Containers: []v1.Container{{Name: "foo"}}},
			},
			reason:              reasonUnknown,
			expectedGracePeriod: int64(2),
		},
		{
			name: "use pod termination grace period",
			pod: &v1.Pod{
				Spec: v1.PodSpec{

	if s.AuditBackend != nil {
		s.AuditBackend.Shutdown()
		klog.V(1).InfoS("[graceful-termination] audit backend shutdown completed")
	}

	// wait for stoppedCh that is closed when the graceful termination (server.Shutdown) is finished.
	<-listenerStoppedCh
	<-stoppedCh

	klog.V(1).Info("[graceful-termination] apiserver is exiting")
	return nil
}

// NonBlockingRun spawns the secure http server. An error is

	EvGCStart           = 7  // GC start [timestamp, seq, stack id]
	EvGCDone            = 8  // GC done [timestamp]
	EvSTWStart          = 9  // GC mark termination start [timestamp, kind]
	EvSTWDone           = 10 // GC mark termination done [timestamp]
	EvGCSweepStart      = 11 // GC sweep start [timestamp, stack id]
	EvGCSweepDone       = 12 // GC sweep done [timestamp, swept, reclaimed]

	RepairNodeName           = "repair-node-name"
	RepairSidecarAnnotation  = "repair-sidecar-annotation"
	RepairInitContainerName  = "repair-init-container-name"
	RepairInitTerminationMsg = "repair-init-container-termination-message"
	RepairInitExitCode       = "repair-init-container-exit-code"
	RepairLabelSelectors     = "repair-label-selectors"
	RepairFieldSelectors     = "repair-field-selectors"
)

// Internal constants
const (

   *   <li>awaits executor service termination for half of the specified timeout.
   *   <li>if the timeout expires, it calls {@link ExecutorService#shutdownNow()}, cancelling
   *       pending tasks and interrupting running tasks.
   *   <li>awaits executor service termination for the other half of the specified timeout.
   * </ol>
   *

// restricted dialects used for the trickier parts of the runtime.
package exithook

import (
	"internal/runtime/atomic"
	_ "unsafe" // for linkname
)

// A Hook is a function to be run at program termination
// (when someone invokes os.Exit, or when main.main returns).
// Hooks are run in reverse order of registration:
// the first hook added is the last one run.
type Hook struct {
	F            func() // func to run

	g      *g
	parked bool

	// active tracks outstanding sweepers and the sweep
	// termination condition.
	active activeSweep

	// centralIndex is the current unswept span class.
	// It represents an index into the mcentral span
	// sets. Accessed and updated via its load and
	// update methods. Not protected by a lock.
	//
	// Reset at mark termination.
	// Used by mheap.nextSpanForSweep.
	centralIndex sweepClass
}

import (
	"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pkg/config/host"
	"istio.io/istio/pkg/maps"
	"istio.io/istio/pkg/util/sets"
)

const (
	// ConnectTerminate is the name for the resources associated with the termination of HTTP CONNECT.
	ConnectTerminate = "connect_terminate"

	// MainInternalName is the name for the resources associated with the main (non-tunnel) internal listener.
	MainInternalName = "main_internal"