func (ldbs *Store) getWithSnapshot(key []byte, snapshot *leveldb.Snapshot) ([]byte, error) {
options := defaultReadOptions()
b, err := snapshot.Get(key, options)
if err == leveldb.ErrNotFound {
return nil, nil
}
return b, err
}
func newIteratorWithSnapshot(store *Store, snapshot *leveldb.Snapshot) *Iterator {
options := defaultReadOptions()
iter := snapshot.NewIterator(nil, options)
rv := Iterator{
store: store,
iterator: iter,
}
return &rv
}