Method SeekTo

iterator_single.go:74–112

(seekToKey []byte)

}

func (iter *iteratorSingle) SeekTo(seekToKey []byte) error {
	key, _, err := iter.Current()
	if err != nil && err != ErrIteratorDone {
		return err
	}

	if key != nil {
		cmp := bytes.Compare(seekToKey, key)
		if cmp == 0 {
			return nil
		}

		if cmp > 0 {
			// Try a loop of naive Next()'s for several attempts.
			err = naiveSeekTo(iter, seekToKey, DefaultNaiveSeekToMaxTries)
			if err != ErrMaxTries {
				return err
			}
		}
	}

	iter.op = 0
	iter.k = nil
	iter.v = nil

	err = iter.sc.Seek(seekToKey)
	if err != nil {
		// we DO want to return ErrIteratorDone here
		return err
	}

	iter.op, iter.k, iter.v = iter.sc.Current()
	if !iter.iteratorOptions.IncludeDeletions &&
		iter.op == OperationDel {
		return iter.Next()
	}

	return nil
}

// Current returns ErrIteratorDone if the iterator is done.
// Otherwise, Current() returns the current key and val, which should