if err != nil {
			return fmt.Errorf("Unable to setup Compression: %w", err)
		}
		globalCompressConfigMu.Lock()
		globalCompressConfig = cmpCfg
		globalCompressConfigMu.Unlock()
	case config.HealSubSys:
		healCfg, err := heal.LookupConfig(s[config.HealSubSys][config.Default])
		if err != nil {
			errs = append(errs, fmt.Errorf("Unable to apply heal config: %w", err))
		} else {

      } finally {
        unlock();
        postWriteCleanup();
      }
    }

    // reference queues, for garbage collection cleanup

    /** Cleanup collected entries when the lock is available. */
    void tryDrainReferenceQueues() {
      if (tryLock()) {
        try {
          drainReferenceQueues();
        } finally {
          unlock();
        }
      }
    }

				//
				// - Do not consume disks which are being healed
				//
				// - Future: skip busy disks
				return
			}

			mu.Lock()
			newDisks = append(newDisks, disks[i])
			mu.Unlock()
		}()
	}
	wg.Wait()
	return newDisks
}

func (er erasureObjects) getOnlineLocalDisks() (newDisks []StorageAPI) {
	disks := er.getOnlineDisks()

				defer wg.Done()

				if clnt.gridConn.State() != grid.StateConnected {
					mu.Lock()
					offlineEndpoints = append(offlineEndpoints, fmt.Errorf("%s is unreachable: %w", clnt, grid.ErrDisconnected))
					mu.Unlock()
					return
				}

				ctx, cancel := context.WithTimeout(ctx, 2*time.Second)
				defer cancel()

				err := clnt.Verify(ctx, srcCfg)
				mu.Lock()
				if err != nil {

		foreignField.GORMDataType = primaryFields[idx].GORMDataType
		if foreignField.Size == 0 {
			foreignField.Size = primaryFields[idx].Size
		}
		schema.Relationships.Mux.Unlock()
		if schema != foreignField.Schema {
			foreignField.Schema.Relationships.Mux.Unlock()
		}

		relation.References = append(relation.References, &Reference{
			PrimaryKey:    primaryFields[idx],
			ForeignKey:    foreignField,

		}
	}
	globalProfilerMu.Unlock()

	timer := time.NewTimer(duration)
	defer timer.Stop()
	for {
		select {
		case <-ctx.Done():
			// Stop remote profiles
			go globalNotificationSys.DownloadProfilingData(GlobalContext, io.Discard)

			// Stop local
			globalProfilerMu.Lock()
			defer globalProfilerMu.Unlock()
			for k, v := range globalProfiler {
				v.Stop()

		c2 := c.clone()
		c = &c2
	}
	p.cycleInfoMu.Lock()
	p.cycleInfo = c
	p.cycleInfoMu.Unlock()
}

// getCycle returns the current cycle metrics.
// If not nil, the returned value can safely be modified.
func (p *scannerMetrics) getCycle() *currentScannerCycle {
	p.cycleInfoMu.Lock()
	defer p.cycleInfoMu.Unlock()
	if p.cycleInfo == nil {
		return nil
	}
	c := p.cycleInfo.clone()
	return &c
}

	o      listPathOptions
	mu     sync.Mutex
	meta   *metacache
	rpc    *peerRESTClient
	cancel context.CancelFunc
}

func (m *metaCacheRPC) setErr(err string) {
	m.mu.Lock()
	defer m.mu.Unlock()
	meta := *m.meta
	if meta.status != scanStateError {
		meta.error = err
		meta.status = scanStateError
	} else {
		// An error is already set.
		return
	}

	}
}

// IsSet will return whether the singleton has been set.
func (s *Singleton[T]) IsSet() bool {
	select {
	case <-s.set:
		return true
	default:
		return false
	}
}

// Set the value and unblock all Get requests.
// This may only be called once, a second call will panic.
func (s *Singleton[T]) Set(v *T) {
	s.v = v
	close(s.set)

    /** Cleanup collected entries when the lock is available. */
    void tryDrainReferenceQueues() {
      if (tryLock()) {
        try {
          maybeDrainReferenceQueues();
        } finally {
          unlock();
        }
      }
    }

    @GuardedBy("this")
    void drainKeyReferenceQueue(ReferenceQueue<K> keyReferenceQueue) {
      Reference<? extends K> ref;
      int i = 0;