Function sdb::btree::fork_db

pub fn fork_db<T, K, V, P>(
    txn: &mut T, 
    db: &Db_<K, V, P>
) -> Result<Db_<K, V, P>, <T as LoadPage>::Error> where
    K: Storable + ?Sized,
    V: Storable + ?Sized,
    T: AllocPage,
    P: BTreeMutPage<K, V>, 

Fork a database.