drivers

type Driver interface {
	Name() string
	CreateVolume(id, baseID string, size int64) error
	DeleteVolume(id string) error
	GetVolumeDevice(id string) (string, error)
	ListVolume(id string) error
	CreateSnapshot(id, volumeID string) error
	DeleteSnapshot(id, volumeID string) error
	HasSnapshot(id, volumeID string) bool
	CompareSnapshot(id, compareID, volumeID string) (*metadata.Mappings, error)
	OpenSnapshot(id, volumeID string) error
	ReadSnapshot(id, volumeID string, start int64, data []byte) error
	CloseSnapshot(id, volumeID string) error
	Info() error
}

type InitFunc func(root string, config map[string]string) (Driver, error)