if err != nil {
		return &fs.PathError{
			Op:   lt.String(),
			Path: f.Name(),
			Err:  err,
		}
	}
	return nil
}

func unlock(f File) error {
	ol := new(syscall.Overlapped)
	err := windows.UnlockFileEx(syscall.Handle(f.Fd()), reserved, allBytes, allBytes, ol)
	if err != nil {
		return &fs.PathError{
			Op:   "Unlock",
			Path: f.Name(),
			Err:  err,
		}
	}
	return nil

//sys UnlockFileEx(file syscall.Handle, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *syscall.Overlapped) (err error) = kernel32.UnlockFileEx

const (
	LOCKFILE_FAIL_IMMEDIATELY = 0x00000001
	LOCKFILE_EXCLUSIVE_LOCK   = 0x00000002
)

const MB_ERR_INVALID_CHARS = 8

	procRtlVirtualUnwind                  = modkernel32.NewProc("RtlVirtualUnwind")
	procSetFileInformationByHandle        = modkernel32.NewProc("SetFileInformationByHandle")
	procUnlockFileEx                      = modkernel32.NewProc("UnlockFileEx")
	procVirtualQuery                      = modkernel32.NewProc("VirtualQuery")
	procNetShareAdd                       = modnetapi32.NewProc("NetShareAdd")
	procNetShareDel                       = modnetapi32.NewProc("NetShareDel")

	procThread32Next                                         = modkernel32.NewProc("Thread32Next")
	procUnlockFileEx                                         = modkernel32.NewProc("UnlockFileEx")
	procUnmapViewOfFile                                      = modkernel32.NewProc("UnmapViewOfFile")
	procUpdateProcThreadAttribute                            = modkernel32.NewProc("UpdateProcThreadAttribute")

//sys	MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW
//sys	LockFileEx(file Handle, flags uint32, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error)
//sys	UnlockFileEx(file Handle, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error)
//sys	GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW