static void awaitWaiting(Thread t) {
    while (true) {
      Thread.State state = t.getState();
      switch (state) {
        case RUNNABLE:
        case BLOCKED:
          Thread.yield();
          break;
        case WAITING:
          return;
        default:
          throw new AssertionError("unexpected state: " + state);
      }
    }
  }

    /** LM compatibility level */
    int LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 3);

    /** No flags set */
    int FLAGS_NONE = 0x00;
    /** Lock and read write and unlock flag */
    int FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK = 0x01;
    /** Receive buffer posted flag */
    int FLAGS_RECEIVE_BUFFER_POSTED = 0x02;
    /** Path names are caseless flag */
    int FLAGS_PATH_NAMES_CASELESS = 0x08;

 * Prevents cascading failures by temporarily blocking requests to a failing service.
 *
 * The circuit breaker has three states:
 * - CLOSED: Normal operation, requests pass through
 * - OPEN: Service is failing, requests are blocked
 * - HALF_OPEN: Testing if service has recovered
 */
public class SmbCircuitBreaker {

    private static final Logger log = LoggerFactory.getLogger(SmbCircuitBreaker.class);

    /**
     * Circuit breaker states

	if err != nil {
		return nil, nil, err
	}

	// Make objLayer available to all internal services via globalObjectAPI.
	globalObjLayerMutex.Lock()
	globalObjectAPI = objLayer
	globalObjLayerMutex.Unlock()
	return objLayer, erasureDirs, nil
}

// cmdType - Represents different service subcomands like status, stop
// and restart.
type cmdType int

const (
	restartCmd cmdType = iota
	stopCmd
)

			lc, err = globalLifecycleSys.Get(bucket)
			if err != nil && !errors.Is(err, BucketLifecycleNotFound{Bucket: bucket}) {
				retErr = err
				healingLogIf(ctx, err)
				continue
			}
			// Check if bucket is object locked.
			lr, err = globalBucketObjectLockSys.Get(bucket)
			if err != nil {
				retErr = err
				healingLogIf(ctx, err)
				continue
			}
			rcfg, err = getReplicationConfig(ctx, bucket)
			if err != nil {

				}
				p.readers[i] = nil

				// Since ReadAt returned error, trigger another read.
				readTriggerCh <- true
				return
			}
			newBufLK.Lock()
			newBuf[bufIdx] = p.buf[bufIdx][:n]
			newBufLK.Unlock()
			// Since ReadAt returned success, there is no need to trigger another read.
			readTriggerCh <- false
		}(readerIndex)
		readerIndex++
	}
	wg.Wait()
	if p.canDecode(newBuf) {
		p.offset += p.shardSize

  @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
  void awaitTimedWaiting(Thread thread) {
    while (true) {
      switch (thread.getState()) {
        case BLOCKED:
        case NEW:
        case RUNNABLE:
        case WAITING:
          Thread.yield();
          break;
        case TIMED_WAITING:
          return;
        case TERMINATED:

	buffer map[int64][]byte
	err    error

	nextOffset int64
	m          sync.Mutex
}

func (w *writerAt) WriteAt(b []byte, offset int64) (n int, err error) {
	w.m.Lock()
	defer w.m.Unlock()

	if w.nextOffset == offset {
		n, err = w.w.Write(b)
		w.nextOffset += int64(n)
	} else {
		if offset > w.nextOffset+ftpMaxWriteOffset {

	}

	if !opts.NoLock {
		lk := er.NewNSLock(bucket, object)
		lkctx, err := lk.GetLock(ctx, globalOperationTimeout)
		if err != nil {
			return result, err
		}
		ctx = lkctx.Context()
		defer lk.Unlock(lkctx)
	}

	// Re-read when we have lock...
	partsMetadata, errs := readAllFileInfo(ctx, storageDisks, "", bucket, object, versionID, true, true)
	if isAllNotFound(errs) {
		err := errFileNotFound

			}
		}
	}

	return compressedOffset, partSkip, firstPartIdx, decryptSkip, seqNum
}

// GetObjectReader is a type that wraps a reader with a lock to
// provide a ReadCloser interface that unlocks on Close()
type GetObjectReader struct {
	io.Reader
	ObjInfo    ObjectInfo
	cleanUpFns []func()
	once       sync.Once
}

// WithCleanupFuncs sets additional cleanup functions to be called when closing