func (store *SStorage) Get(index uint64) (pb.HardState, error) {
assert(nil != store.db)
key := makeDataKey(index)
assert(0 < len(key))
val, err := store.db.Get(key, nil)
if nil != err {
return pb.HardState{}, err
}
hs := pb.HardState{}
err = hs.Unmarshal(val)
if nil != err {
return pb.HardState{}, err
}
return hs, nil
}
func (store *SStorage) getIndex(key []byte) (uint64, error) {
assert(nil != store.db)
assert(nil != key)
val, err := store.db.Get(key, nil)
if nil != err {
if ldb.ErrNotFound == err {
return 0, nil
}
return 0, err
}
hs := pb.HardState{}
err = hs.Unmarshal(val)
if nil != err {
return 0, err
}
return hs.Index, nil
}