// The actual server loop (stoppable by closing stopCh) runs in a go routine, i.e. Serve does not block.
// It returns a stoppedCh that is closed when all non-hijacked active requests have been processed.
// It returns a listenerStoppedCh that is closed when the underlying http Server has stopped listening.

	} else {
		klog.Infof("Serving insecurely on %s", s.Listener.Addr())
	}
	_, _, err := RunServer(insecureServer, s.Listener, shutdownTimeout, stopCh)
	// NOTE: we do not handle stoppedCh returned by RunServer for graceful termination here
	return err
}

func (s *DeprecatedInsecureServingInfo) NewLoopbackClientConfig() (*rest.Config, error) {
	if s == nil {
		return nil, nil
	}

	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

//	             |          |
//	             |          |
//	             |	stoppedCh is closed
//	             |
//	             |
//	   <-drainedCh.Signaled()
//	             |
//	  s.AuditBackend.Shutdown()
//	             |
//	     <-listenerStoppedCh
//	             |
//	        <-stoppedCh
//	             |
//	         return nil

		handler := buildHandlerChain(newHealthEndpointsAndMetricsHandler(&cc.ComponentConfig, cc.InformerFactory, isLeader, checks, readyzChecks), cc.Authentication.Authenticator, cc.Authorization.Authorizer)
		// TODO: handle stoppedCh and listenerStoppedCh returned by c.SecureServing.Serve
		if _, _, err := cc.SecureServing.Serve(handler, 0, ctx.Done()); err != nil {
			// fail early for secure handlers, removing the old error loop from above

	ln, err := net.Listen("tcp", insecureServer.Addr)
	if err != nil {
		t.Errorf("failed to listen on %v: %v", insecureServer.Addr, err)
	}

	// get port
	serverPort := ln.Addr().(*net.TCPAddr).Port
	stoppedCh, _, err := RunServer(insecureServer, ln, 10*time.Second, stopCh)
	if err != nil {
		t.Fatalf("RunServer err: %v", err)
	}

	graceCh := make(chan struct{})
	// mock a client request
	go func() {

		slis.SLIMetricsWithReset{}.Install(unsecuredMux)

		handler := genericcontrollermanager.BuildHandlerChain(unsecuredMux, &c.Authorization, &c.Authentication)
		// TODO: handle stoppedCh and listenerStoppedCh returned by c.SecureServing.Serve
		if _, _, err := c.SecureServing.Serve(handler, 0, stopCh); err != nil {
			return err
		}
	}

			continue
		}
		diskStats[disk.PoolIndex].AvailableSpace += disk.AvailableSpace
		diskStats[disk.PoolIndex].TotalSpace += disk.TotalSpace
	}

	stopTime := meta.StoppedAt
	r = rebalanceAdminStatus{
		ID:        meta.ID,
		StoppedAt: meta.StoppedAt,
		Pools:     make([]rebalancePoolStatus, len(meta.PoolStats)),
	}
	for i, ps := range meta.PoolStats {
		r.Pools[i] = rebalancePoolStatus{
			ID:     i,

	z.rebalMu.RLock()
	defer z.rebalMu.RUnlock()

	if r := z.rebalMeta; r != nil {
		if r.StoppedAt.IsZero() {
			return true
		}
	}
	return false
}

func (z *erasureServerPools) IsPoolRebalancing(poolIndex int) bool {
	z.rebalMu.RLock()
	defer z.rebalMu.RUnlock()

	if r := z.rebalMeta; r != nil {
		if !r.StoppedAt.IsZero() {
			return false
		}
		ps := z.rebalMeta.PoolStats[poolIndex]

	"context"
	"fmt"
	"sync"
)

type status int

const (
	Pending status = iota
	Ready
	Stopped
)

// ready is a three state condition variable that blocks until is Ready if is not Stopped.
// Its initial state is Pending and its state machine diagram is as follow.
//
// Pending <------> Ready -----> Stopped
//
//	|                           ^
//	└---------------------------┘
type ready struct {