func NewStateObjectFromBytes(address common.Address, data []byte, db common.Database) *StateObject {
// TODO clean me up
var extobject struct {
Nonce uint64
Balance *big.Int
Root common.Hash
CodeHash []byte
}
err := rlp.Decode(bytes.NewReader(data), &extobject)
if err != nil {
fmt.Println(err)
return nil
}
object := &StateObject{address: address, db: db}
object.nonce = extobject.Nonce
object.balance = extobject.Balance
object.codeHash = extobject.CodeHash
object.trie = trie.NewSecure(extobject.Root[:], db)
object.storage = make(map[string]common.Hash)
object.gasPool = new(big.Int)
object.code, _ = db.Get(extobject.CodeHash)
return object
}
// GetBlockByHash returns the canonical block by number or nil if not found
func GetBlockByNumber(db common.Database, number uint64) *types.Block {
key, _ := db.Get(append(blockNumPre, big.NewInt(int64(number)).Bytes()...))
if len(key) == 0 {
return nil
}
return GetBlockByHash(db, common.BytesToHash(key))
}
func saveBlockchainVersion(db common.Database, bcVersion int) {
d, _ := db.Get([]byte("BlockchainVersion"))
blockchainVersion := common.NewValue(d).Uint()
if blockchainVersion == 0 {
db.Put([]byte("BlockchainVersion"), common.NewValue(bcVersion).Bytes())
}
}
// GetBlockByHash returns the block corresponding to the hash or nil if not found
func GetBlockByHash(db common.Database, hash common.Hash) *types.Block {
data, _ := db.Get(append(blockHashPre, hash[:]...))
if len(data) == 0 {
return nil
}
var block types.StorageBlock
if err := rlp.Decode(bytes.NewReader(data), &block); err != nil {
glog.V(logger.Error).Infof("invalid block RLP for hash %x: %v", hash, err)
return nil
}
return (*types.Block)(&block)
}
// GetBlockReceipts returns the receipts generated by the transactions
// included in block's given hash.
func GetBlockReceipts(db common.Database, hash common.Hash) types.Receipts {
data, _ := db.Get(append(blockReceiptsPre, hash[:]...))
if len(data) == 0 {
return nil
}
var receipts types.Receipts
err := rlp.DecodeBytes(data, &receipts)
if err != nil {
glog.V(logger.Core).Infoln("GetReceiptse err", err)
}
return receipts
}
// GetReceipt returns a receipt by hash
func GetReceipt(db common.Database, txHash common.Hash) *types.Receipt {
data, _ := db.Get(append(receiptsPre, txHash[:]...))
if len(data) == 0 {
return nil
}
var receipt types.Receipt
err := rlp.DecodeBytes(data, &receipt)
if err != nil {
glog.V(logger.Core).Infoln("GetReceipt err:", err)
}
return &receipt
}