old := e.cached.Swap(newAcc)
			var a AccElem
			a.Size = atomic.LoadInt64(&old.Size)
			a.Total = atomic.LoadInt64(&old.Total)
			a.N = atomic.LoadInt64(&old.N)
			e.mu.Lock()
			e.lastMinuteLatency.addAll(t-1, a)
			e.mu.Unlock()
			acc = newAcc
		} else {
			// We may be able to grab the new accumulator by yielding.
			runtime.Gosched()
			acc = e.cached.Load()
		}
	}
	atomic.AddInt64(&acc.N, 1)

	}
}

// Initialized checks if IAM is initialized
func (sys *IAMSys) Initialized() bool {
	if sys == nil {
		return false
	}
	sys.Lock()
	defer sys.Unlock()
	return sys.store != nil
}

// Load - loads all credentials, policies and policy mappings.
func (sys *IAMSys) Load(ctx context.Context, firstTime bool) error {
	loadStartTime := time.Now()

				if kerrors.IsNotFound(err) {
					fmt.Fprintf(cmd.OutOrStdout(), "waypoint %v/%v not found\n", namespace, name)
				} else {
					mu.Lock()
					multiErr = multierror.Append(multiErr, err)
					mu.Unlock()
				}
			} else {
				fmt.Fprintf(cmd.OutOrStdout(), "waypoint %v/%v deleted\n", namespace, name)
			}
		}(name)
	}

	wg.Wait()
	return multiErr.ErrorOrNil()

		if globalIsDistErasure {
			// Top locks
			adminRouter.Methods(http.MethodGet).Path(adminVersion + "/top/locks").HandlerFunc(adminMiddleware(adminAPI.TopLocksHandler))
			// Force unlocks paths
			adminRouter.Methods(http.MethodPost).Path(adminVersion+"/force-unlock").
				Queries("paths", "{paths:.*}").HandlerFunc(adminMiddleware(adminAPI.ForceUnlockHandler))
		}

     * error-prone code like:
     *
     * Striped<Lock> stripedLock = Striped.lazyWeakXXX(...)'
     * Iterable<Lock> locks = stripedLock.bulkGet(keys);
     * for (Lock lock : locks) {
     *   lock.lock();
     * }
     * operation();
     * for (Lock lock : locks) {
     *   lock.unlock();
     * }
     *

func (s *xlStorage) GetDiskID() (string, error) {
	s.RLock()
	diskID := s.diskID
	fileInfo := s.formatFileInfo
	lastCheck := s.formatLastCheck

	// check if we have a valid disk ID that is less than 1 seconds old.
	if fileInfo != nil && diskID != "" && time.Since(lastCheck) <= 1*time.Second {
		s.RUnlock()
		return diskID, nil
	}
	s.RUnlock()

	fi, err := s.checkFormatJSON()
	if err != nil {

of an interface type or of elements of a composite type remains unchanged:
</p>

<pre>
// A Mutex is a data type with two methods, Lock and Unlock.
type Mutex struct         { /* Mutex fields */ }
func (m *Mutex) Lock()    { /* Lock implementation */ }
func (m *Mutex) Unlock()  { /* Unlock implementation */ }

// NewMutex has the same composition as Mutex but its method set is empty.
type NewMutex Mutex

func (s *Site) Update(n Site) {
	siteLK.Lock()
	s.name = n.name
	s.region = n.region
	siteLK.Unlock()
}

// Name returns currently configured site name
func (s *Site) Name() string {
	siteLK.RLock()
	defer siteLK.RUnlock()

	return s.name
}

// Region returns currently configured site region
func (s *Site) Region() string {
	siteLK.RLock()
	defer siteLK.RUnlock()

	return s.region

	errFatal(err)

	// Wait for the server start the request.
	<-reqStarted

	// Block until we have exceeded the deadline several times over.
	nowBlocking := make(chan struct{})
	var mu sync.Mutex
	time.AfterFunc(time.Second, func() {
		mu.Lock()
		cancel()
		close(nowBlocking)
		mu.Unlock()
	})
	if inCap > 0 {
		go func() {
			defer close(st.Requests)
			if !blockReq {

					write([]byte(err.Error()))
				} else {
					write([]byte{0})
				}
				xioutil.SafeClose(doneCh)
				return
			case block := <-blockCh:
				var tmp [5]byte
				tmp[0] = 2
				binary.LittleEndian.PutUint32(tmp[1:], uint32(len(block)))
				write(tmp[:])
				write(block)
				if canWrite {
					w.(http.Flusher).Flush()
				}
			}
		}
	}()
	return &h
}