// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package kclient

import (
	"sync"
	"sync/atomic"

	klabels "k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime/schema"
	"k8s.io/client-go/tools/cache"

	"istio.io/istio/pkg/kube/controllers"
	"istio.io/istio/pkg/kube/kubetypes"

// limitations under the License.

package multicluster

import (
	"sync"

	"istio.io/istio/pkg/cluster"
	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/util/sets"
)

// ClusterStore is a collection of clusters
type ClusterStore struct {
	sync.RWMutex
	// keyed by secret key(ns/name)->clusterID
	remoteClusters map[string]map[cluster.ID]*Cluster
	clusters       sets.String

			// short-circuit if already synced
			return true
		}
		if hasSynced() {
			// remember we synced
			cache.Store(true)
			return true
		}
		return false
	}
}

// protectedLister returns notReadyError if hasSynced returns false, otherwise delegates to delegate
type protectedLister struct {
	hasSynced   func() bool
	notReadyErr error
	delegate    cache.GenericLister
}

Kebe <******@****.***> 1682963494 +0800

package queue

import (
	"errors"
	"sync"
	"testing"
	"time"

	"go.uber.org/atomic"

	"istio.io/istio/pkg/test/util/assert"
	"istio.io/istio/pkg/test/util/retry"
)

func TestOrdering(t *testing.T) {
	numValues := 1000

	q := NewQueue(1 * time.Microsecond)
	stop := make(chan struct{})
	defer close(stop)

	wg := sync.WaitGroup{}
	wg.Add(numValues)
	mu := sync.Mutex{}
	out := make([]int, 0)

See the License for the specific language governing permissions and
limitations under the License.
*/

package healthz

import (
	"bytes"
	"context"
	"fmt"
	"net/http"
	"reflect"
	"strings"
	"sync"
	"sync/atomic"
	"time"

	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/apimachinery/pkg/util/wait"
	"k8s.io/apiserver/pkg/endpoints/metrics"
	"k8s.io/apiserver/pkg/server/httplog"

	// rsListerSynced returns true if the pod store has been synced at least once.
	// Added as a member to the struct to allow injection for testing.
	rsListerSynced cache.InformerSynced
	rsIndexer      cache.Indexer

	// A store of pods, populated by the shared informer passed to NewReplicaSetController
	podLister corelisters.PodLister
	// podListerSynced returns true if the pod store has been synced at least once.

        }
    }

    @Override
    ExecutableFixture executable(Object path) {
        ExecutableFixture executable = super.executable(path)
        // Executables synced from a binary repo lose their executable bit
        executable.file.setExecutable(true)
        executable
    }

    Map<String, String> machine(String os, String architecture) {

	defer gb.monitorLock.Unlock()

	if len(gb.monitors) == 0 {
		logger.V(4).Info("garbage controller monitor not synced: no monitors")
		return false
	}

	for resource, monitor := range gb.monitors {
		if !monitor.controller.HasSynced() {
			logger.V(4).Info("garbage controller monitor not yet synced", "resource", resource)
			return false
		}
	}
	return true
}

	cidrSets []*cidrset.CidrSet
	// nodeLister is able to list/get nodes and is populated by the shared informer passed to controller
	nodeLister corelisters.NodeLister
	// nodesSynced returns true if the node shared informer has been synced at least once.
	nodesSynced cache.InformerSynced
	broadcaster record.EventBroadcaster
	recorder    record.EventRecorder

	// queues are where incoming work is placed to de-dup and to allow "easy"