func (b *Rpdb) commit(bt *store.Batch, fw *Forward) error {
if bt.Len() == 0 {
return nil
}
if err := b.db.Commit(bt); err != nil {
log.WarnErrorf(err, "rpdb commit failed")
return err
}
for i := b.itlist.Len(); i != 0; i-- {
v := b.itlist.Remove(b.itlist.Front()).(*rpdbIterator)
v.Close()
}
b.serial++
return nil
}
