}

	// Build harness. We need two copies of the harness, one built
	// with -covermode=atomic and one built non-atomic.
	bdir1 := mkdir(t, filepath.Join(dir, "build1"))
	hargs1 := []string{"-covermode=atomic", "-coverpkg=all"}
	atomicHarnessPath := buildHarness(t, bdir1, hargs1)
	nonAtomicMode := testing.CoverMode()
	if testing.CoverMode() == "atomic" {
		nonAtomicMode = "set"
	}
	bdir2 := mkdir(t, filepath.Join(dir, "build2"))

// limitations under the License.

package xds

import (
	"fmt"
	"strconv"
	"strings"
	"sync/atomic"
	"time"

	core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
	discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"
	uatomic "go.uber.org/atomic"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/peer"
	"google.golang.org/grpc/status"

	"istio.io/api/label"

	}
	return clnt
}

// IsOnline returns whether the client is likely to be online.
func (c *Client) IsOnline() bool {
	return atomic.LoadInt32(&c.connected) == online
}

// LastConn returns when the disk was (re-)connected
func (c *Client) LastConn() time.Time {
	return time.Unix(0, atomic.LoadInt64(&c.lastConn))
}

// LastError returns previous error
func (c *Client) LastError() error {
	c.RLock()

func (h *Target) IsOnline(ctx context.Context) bool {
	return atomic.LoadInt32(&h.status) == statusOnline
}

// Stats returns the target statistics.
func (h *Target) Stats() types.TargetStats {
	h.logChMu.RLock()
	queueLength := len(h.logCh)
	h.logChMu.RUnlock()
	stats := types.TargetStats{
		TotalMessages:  atomic.LoadInt64(&h.totalMessages),
		FailedMessages: atomic.LoadInt64(&h.failedMessages),
		QueueLength:    queueLength,

	defer r.qCache.Unlock()
	v, ok := r.qCache.bucketStats[bucket]
	if !ok {
		v = newInQueueStats(r.registry, bucket)
	}
	atomic.AddInt64(&v.nowBytes, sz)
	atomic.AddInt64(&v.nowCount, 1)
	r.qCache.bucketStats[bucket] = v
	atomic.AddInt64(&r.qCache.srQueueStats.nowBytes, sz)
	atomic.AddInt64(&r.qCache.srQueueStats.nowCount, 1)
}

	// +optional
	// +listType=atomic
	APIGroups []string `json:"apiGroups,omitempty" protobuf:"bytes,2,rep,name=apiGroups"`
	// Resources is a list of resources this rule applies to. '*' represents all resources.
	// +optional
	// +listType=atomic
	Resources []string `json:"resources,omitempty" protobuf:"bytes,3,rep,name=resources"`

  // +optional
  // +listType=atomic
  repeated string resources = 2;

  // ResourceNames is a list of resource instance names that the policy matches.
  // Using this field requires Resources to be specified.
  // An empty list implies that every instance of the resource is matched.
  // +optional
  // +listType=atomic
  repeated string resourceNames = 3;
}

	// PolicyRules are strictly ordered.
	// +listType=atomic
	Rules []PolicyRule `json:"rules" protobuf:"bytes,2,rep,name=rules"`

	// OmitStages is a list of stages for which no events are created. Note that this can also
	// be specified per rule in which case the union of both are omitted.
	// +optional
	// +listType=atomic
	OmitStages []Stage `json:"omitStages,omitempty" protobuf:"bytes,3,rep,name=omitStages"`

}

// atomicSpanSetSpinePointer is an atomically-accessed spanSetSpinePointer.
//
// It has the same semantics as atomic.UnsafePointer.
type atomicSpanSetSpinePointer struct {
	a atomic.UnsafePointer
}

// Loads the spanSetSpinePointer and returns it.
//
// It has the same semantics as atomic.UnsafePointer.
func (s *atomicSpanSetSpinePointer) Load() spanSetSpinePointer {
	return spanSetSpinePointer{s.a.Load()}
}

	diskHealthOK int32 = iota
	diskHealthFaulty
)

type diskHealthTracker struct {
	// atomic time of last success
	lastSuccess int64

	// atomic time of last time a token was grabbed.
	lastStarted int64

	// Atomic status of disk.
	status atomic.Int32

	// Atomic number indicates if a disk is hung
	waiting atomic.Int32
}

// newDiskHealthTracker creates a new disk health tracker.