package core import ( "encoding/json" "fmt" "os" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/params" ) /* * This is the special genesis block. */ var ZeroHash256 = make([]byte, 32) var ZeroHash160 = make([]byte, 20) var ZeroHash512 = make([]byte, 64) func GenesisBlock(db common.Database) *types.Block { genesis := types.NewBlock(common.Hash{}, common.Address{}, common.Hash{}, params.GenesisDifficulty, 42, nil) genesis.Header().Number = common.Big0 genesis.Header().GasLimit = params.GenesisGasLimit genesis.Header().GasUsed = common.Big0 genesis.Header().Time = 0 genesis.Td = common.Big0 genesis.SetUncles([]*types.Header{}) genesis.SetTransactions(types.Transactions{}) genesis.SetReceipts(types.Receipts{}) var accounts map[string]struct { Balance string Code string } err := json.Unmarshal(genesisData, &accounts) if err != nil { fmt.Println("enable to decode genesis json data:", err) os.Exit(1) } statedb := state.New(genesis.Root(), db) for addr, account := range accounts { codedAddr := common.Hex2Bytes(addr) accountState := statedb.CreateAccount(common.BytesToAddress(codedAddr)) accountState.SetBalance(common.Big(account.Balance)) accountState.SetCode(common.FromHex(account.Code)) statedb.UpdateStateObject(accountState) } statedb.Sync() genesis.Header().Root = statedb.Root() return genesis } const ( TestAccount = "e273f01c99144c438695e10f24926dc1f9fbf62d" TestBalance = "1000000000000" ) var genesisData = []byte(`{ "` + TestAccount + `": {"balance": "` + TestBalance + `"}, ` + BuiltInContracts + ` "0000000000000000000000000000000000000001": {"balance": "1"}, "0000000000000000000000000000000000000002": {"balance": "1"}, "0000000000000000000000000000000000000003": {"balance": "1"}, "0000000000000000000000000000000000000004": {"balance": "1"}, "dbdbdb2cbd23b783741e8d7fcf51e459b497e4a6": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "e4157b34ea9615cfbde6b4fda419828124b70c78": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "b9c015918bdaba24b4ff057a92a3873d6eb201be": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "6c386a4b26f73c802f34673f7248bb118f97424a": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "cd2a3d9f938e13cd947ec05abc7fe734df8dd826": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "2ef47100e0787b915105fd5e3f4ff6752079d5cb": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "e6716f9544a56c530d868e4bfbacb172315bdead": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "1a26338f0d905e295fccb71fa9ea849ffa12aaf4": {"balance": "1606938044258990275541962092341162602522202993782792835301376"} }`)