public FindResult Find(ByteBuffer key)
{
var result = _cursor.Find(_prefix, key.AsSyncReadOnlySpan());
_keyIndex = -1;
if (_prefix.Length > 0)
{
if (result == FindResult.Previous && !_cursor.KeyHasPrefix(_prefix))
{
if (!_cursor.MoveNext())
{
return(FindResult.NotFound);
}
if (_cursor.KeyHasPrefix(_prefix))
{
return(FindResult.Next);
}
_cursor.Invalidate();
return(FindResult.NotFound);
}
if (result == FindResult.Next && !_cursor.KeyHasPrefix(_prefix))
{
// FindResult.Previous is preferred that's why it has to be NotFound when next does not match prefix
_cursor.Invalidate();
return(FindResult.NotFound);
}
}
return(result);
}
public FindResult Find(ByteBuffer key)
{
var result = _cursor.Find(_prefix, key.AsSyncReadOnlySpan());
_keyIndex = -1;
return(result);
}