backend

type File interface {
	fs.File
	io.ReaderAt
	io.Seeker
	io.Closer
}

type Storage interface {
	File
	// OS-specific file for ioctl calls via fd
	Sys() (*os.File, error)
	// file for read-write operations
	Writable() (WritableFile, error)
	// Path returns the path to the underlying storage, if any; returns empty string if not applicable
	Path() string
}

type SubStorage struct {
	// contains filtered or unexported fields
}

type WritableFile interface {
	File
	io.WriterAt
}