func LoadState(db dbm.DB) *State {
s := &State{DB: db}
buf := db.Get(stateKey)
if len(buf) == 0 {
return nil
} else {
r, n, err := bytes.NewReader(buf), new(int64), new(error)
s.LastBlockHeight = binary.ReadUvarint(r, n, err)
s.LastBlockHash = binary.ReadByteSlice(r, n, err)
s.LastBlockParts = binary.ReadBinary(types.PartSetHeader{}, r, n, err).(types.PartSetHeader)
s.LastBlockTime = binary.ReadTime(r, n, err)
s.BondedValidators = binary.ReadBinary(&ValidatorSet{}, r, n, err).(*ValidatorSet)
s.LastBondedValidators = binary.ReadBinary(&ValidatorSet{}, r, n, err).(*ValidatorSet)
s.UnbondingValidators = binary.ReadBinary(&ValidatorSet{}, r, n, err).(*ValidatorSet)
accountsHash := binary.ReadByteSlice(r, n, err)
s.accounts = merkle.NewIAVLTree(binary.BasicCodec, account.AccountCodec, defaultAccountsCacheCapacity, db)
s.accounts.Load(accountsHash)
validatorInfosHash := binary.ReadByteSlice(r, n, err)
s.validatorInfos = merkle.NewIAVLTree(binary.BasicCodec, ValidatorInfoCodec, 0, db)
s.validatorInfos.Load(validatorInfosHash)
if *err != nil {
panic(*err)
}
// TODO: ensure that buf is completely read.
}
return s
}
func ReadIAVLNode(t *IAVLTree, r io.Reader, n *int64, err *error) *IAVLNode {
node := &IAVLNode{}
// node header & key
node.height = binary.ReadUint8(r, n, err)
node.size = binary.ReadUint64(r, n, err)
node.key = t.keyCodec.Decode(r, n, err)
if *err != nil {
panic(*err)
}
// node value or children.
if node.height == 0 {
node.value = t.valueCodec.Decode(r, n, err)
} else {
node.leftHash = binary.ReadByteSlice(r, n, err)
node.rightHash = binary.ReadByteSlice(r, n, err)
}
if *err != nil {
panic(*err)
}
return node
}
