}

type metacacheManager struct {
	mu      sync.RWMutex
	init    sync.Once
	buckets map[string]*bucketMetacache
	trash   map[string]metacache // Recently deleted lists.
}

const metacacheMaxEntries = 5000

// initManager will start async saving the cache.
func (m *metacacheManager) initManager() {
	// Add a transient bucket.
	// Start saver when object layer is ready.
	go func() {
		objAPI := newObjectLayerFn()

	"istio.io/istio/pkg/kube"
	istioversion "istio.io/istio/pkg/version"
)

const (
	// Service account to create tokens in
	tokenServiceAccount = "default"
	// Get the pods with limit = 500.
	kubeClientGetPodLimit = 500
)

type ControlPlaneNotFoundError struct {
	Namespace string
}

func (c ControlPlaneNotFoundError) Error() string {
	return fmt.Sprintf("no running Istio pods in %q", c.Namespace)
}

	}()

	c.connMu.Lock()
	connPingInterval := c.connPingInterval
	c.connMu.Unlock()
	ping := time.NewTicker(connPingInterval)
	pingFrame := message{
		Op:         OpPing,
		DeadlineMS: 5000,
	}

	defer ping.Stop()
	queue := make([][]byte, 0, maxMergeMessages)
	merged := make([]byte, 0, writeBufferSize)
	var queueSize int
	var buf bytes.Buffer
	var wsw wsWriter
	for {

	if _, ok := tx.ConnPool.(*gorm.PreparedStmtDB); !ok {
		t.Fatalf("should assign PreparedStatement Manager back to database when using PrepareStmt mode")
	}

	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
	defer cancel()
	txCtx := tx.WithContext(ctx)

	user := *GetUser("prepared_stmt", Config{})

	txCtx.Create(&user)

	var result1 User
	if err := txCtx.Find(&result1, user.ID).Error; err != nil {

		if tgt.Empty() {
			writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrInvalidRequest, fmt.Errorf("invalid arn : '%s'", opts.ARN)), r.URL)
			return
		}
	}

	keepAliveTicker := time.NewTicker(500 * time.Millisecond)
	defer keepAliveTicker.Stop()

	diffCh, err := getReplicationDiff(ctx, objectAPI, bucket, opts)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

		if columnTypes[i].Name() != expectName {
			t.Fatalf("column order not match struct and ddl, idx %d: %s != %s",
				i, columnTypes[i].Name(), expectName)
		}
	}
}

// https://github.com/go-gorm/gorm/issues/5047
func TestMigrateSerialColumn(t *testing.T) {
	if DB.Dialector.Name() != "postgres" {
		return
	}

	type Event struct {
		ID  uint `gorm:"primarykey"`
		UID uint32
	}

	type Event1 struct {

		wantInverted: []sparseEntry{{0, 0}},
	}, {
		in: []sparseEntry{}, size: 5000,
		wantValid:    true,
		wantInverted: []sparseEntry{{0, 5000}},
	}, {
		in: []sparseEntry{{0, 5000}}, size: 5000,
		wantValid:    true,
		wantAligned:  []sparseEntry{{0, 5000}},
		wantInverted: []sparseEntry{{5000, 0}},
	}, {
		in: []sparseEntry{{1000, 4000}}, size: 5000,
		wantValid:    true,
		wantAligned:  []sparseEntry{{1024, 3976}},

	// Max time between client calls before dropping an async cache listing.
	metacacheMaxClientWait = 3 * time.Minute

	// metacacheBlockSize is the number of file/directory entries to have in each block.
	metacacheBlockSize = 5000

	// metacacheSharePrefix controls whether prefixes on dirty paths are always shared.
	// This will make `test/a` and `test/b` share listings if they are concurrent.

			Name:     "small.txt",
			Mode:     0640,
			Uid:      73025,
			Gid:      5000,
			Size:     5,
			ModTime:  time.Unix(1244428340, 0),
			Typeflag: '0',
			Uname:    "dsymonds",
			Gname:    "eng",
			Format:   FormatGNU,
		}, {
			Name:     "small2.txt",
			Mode:     0640,
			Uid:      73025,
			Gid:      5000,
			Size:     11,
			ModTime:  time.Unix(1244436044, 0),
			Typeflag: '0',

		file: "testdata/writer.tar",
		tests: []testFnc{
			testHeader{Header{
				Typeflag: TypeReg,
				Name:     "small.txt",
				Size:     5,
				Mode:     0640,
				Uid:      73025,
				Gid:      5000,
				Uname:    "dsymonds",
				Gname:    "eng",
				ModTime:  time.Unix(1246508266, 0),
			}, nil},
			testWrite{"Kilts", 5, nil},

			testHeader{Header{
				Typeflag: TypeReg,
				Name:     "small2.txt",