String() string

	// Close closes any underlying connection to the service endpoint
	Close() error

	// Is the underlying connection online? (is always true for any local lockers)
	IsOnline() bool

	// Is the underlying locker local to this server?
	IsLocal() bool

	}
	return lockCopy
}

func (l *localLocker) Close() error {
	return nil
}

// IsOnline - local locker is always online.
func (l *localLocker) IsOnline() bool {
	return true
}

// IsLocal - local locker returns true.
func (l *localLocker) IsLocal() bool {
	return true
}

	//   locker: A synchronization lock that is unlocked after initialization to avoid deadlocks.
	// Returns:
	//   *Stmt: A newly created statement object for executing SQL operations.
	//   error: An error if the statement preparation fails.
	New(ctx context.Context, key string, isTransaction bool, connPool ConnPool, locker sync.Locker) (*Stmt, error)

		TimeLastRefresh: UTCNow().UnixNano(),
	}

	locker.ll.lockMap["name"] = []lockRequesterInfo{
		lockRequesterInfo1,
		lockRequesterInfo2,
	}

	lri := locker.ll.lockMap["name"]

	// test unknown uid
	if locker.ll.removeEntry("name", dsync.LockArgs{
		Owner: "owner",
		UID:   "unknown-uid",
	}, &lri) {
		t.Errorf("Expected %#v, got %#v", false, true)
	}

	if !locker.ll.removeEntry("name", dsync.LockArgs{

})

type sharedLock struct {
	lockContext chan LockContext
}

func (ld sharedLock) backgroundRoutine(ctx context.Context, objAPI ObjectLayer, lockName string) {
	for {
		locker := objAPI.NewNSLock(minioMetaBucket, lockName)
		lkctx, err := locker.GetLock(ctx, sharedLockTimeout)
		if err != nil {
			continue
		}

	keepLock:
		for {
			select {
			case <-ctx.Done():
				return
			case <-lkctx.Context().Done():

			lm.ref = 1
			lm.isWriteLock = true
			locked = true
		}
	} else {
		if !lm.isWriteLock {
			lm.ref++
			locked = true
		}
	}

	return locked
}

const (
	lockRetryInterval = 50 * time.Millisecond
)

// lockLoop will acquire either a read or a write lock
//
// The call will block until the lock is granted using a built-in
// timing randomized back-off algorithm to try again until successful

	// Make sure only 1 callhome is running on the cluster.
	locker := objAPI.NewNSLock(minioMetaBucket, "callhome/runCallhome.lock")
	lkctx, err := locker.GetLock(ctx, callhomeLeaderLockTimeout)
	if err != nil {
		// lock timedout means some other node is the leader,
		// cycle back return 'true'
		return true
	}

	ctx = lkctx.Context()
	defer locker.Unlock(lkctx)

			g := Granted{index: index}
			if c == nil {
				log("dsync: nil locker\n")
				ch <- g
				return
			}

			var locked bool
			var err error
			if isReadLock {
				if locked, err = c.RLock(netLockCtx, args); err != nil {
					log("dsync: Unable to call RLock failed with %s for %#v at %s\n", err, args, c)
				}
			} else {
				if locked, err = c.Lock(netLockCtx, args); err != nil {

			return nil
		}
		if !errors.Is(err, errUnformattedDisk) {
			return err
		}
	}

	// Prevent parallel erasure set healing
	locker := z.NewNSLock(minioMetaBucket, fmt.Sprintf("new-drive-healing/%d/%d", poolIdx, setIdx))
	lkctx, err := locker.GetLock(ctx, newDiskHealingTimeout)
	if err != nil {
		return fmt.Errorf("Healing of drive '%v' on %s pool, belonging to %s erasure set already in progress: %w",

	connection *grid.Connection
}

// IsOnline - returns whether REST client failed to connect or not.
func (c *lockRESTClient) IsOnline() bool {
	return c.connection.State() == grid.StateConnected
}

// Not a local locker
func (c *lockRESTClient) IsLocal() bool {
	return false
}

// Close - marks the client as closed.
func (c *lockRESTClient) Close() error {
	return nil
}