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package main
import (
"crypto/rand"
"encoding/json"
"fmt"
"github.com/ava-labs/coreth"
"github.com/ava-labs/coreth/accounts/abi"
"github.com/ava-labs/coreth/core"
"github.com/ava-labs/coreth/core/types"
"github.com/ava-labs/coreth/core/vm"
"github.com/ava-labs/coreth/eth"
"github.com/ava-labs/coreth/params"
"github.com/ava-labs/go-ethereum/common"
"github.com/ava-labs/go-ethereum/common/compiler"
"github.com/ava-labs/go-ethereum/crypto"
"github.com/ava-labs/go-ethereum/log"
"go/build"
"math/big"
"os"
"os/signal"
"path/filepath"
"strings"
"syscall"
"time"
)
func checkError(err error) {
if err != nil {
panic(err)
}
}
func main() {
// configure the chain
config := eth.DefaultConfig
config.ManualCanonical = true
chainConfig := ¶ms.ChainConfig{
ChainID: big.NewInt(1),
HomesteadBlock: big.NewInt(0),
DAOForkBlock: big.NewInt(0),
DAOForkSupport: true,
EIP150Block: big.NewInt(0),
EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
EIP155Block: big.NewInt(0),
EIP158Block: big.NewInt(0),
ByzantiumBlock: big.NewInt(0),
ConstantinopleBlock: big.NewInt(0),
PetersburgBlock: big.NewInt(0),
IstanbulBlock: nil,
Ethash: nil,
}
// configure the genesis block
genesisJSON := `{"config":{"chainId":1,"homesteadBlock":0,"daoForkBlock":0,"daoForkSupport":true,"eip150Block":0,"eip150Hash":"0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0","eip155Block":0,"eip158Block":0,"byzantiumBlock":0,"constantinopleBlock":0,"petersburgBlock":0},"nonce":"0x0","timestamp":"0x0","extraData":"0x00","gasLimit":"0x5f5e100","difficulty":"0x0","mixHash":"0x0000000000000000000000000000000000000000000000000000000000000000","coinbase":"0x0000000000000000000000000000000000000000","alloc":{"751a0b96e1042bee789452ecb20253fba40dbe85":{"balance":"0x1000000000000000", "mcbalance": {"0x0000000000000000000000000000000000000000000000000000000000000000": 1000000000000000000}}, "0100000000000000000000000000000000000000": {"code": "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", "balance": "0x0", "mcbalance": {}}},"number":"0x0","gasUsed":"0x0","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000"}`
mcAbiJSON := `[{"inputs":[],"name":"enableMultiCoin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"coinid","type":"uint256"}],"name":"getBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"coinid","type":"uint256"},{"internalType":"uint256","name":"amount2","type":"uint256"}],"name":"transfer","outputs":[],"stateMutability":"nonpayable","type":"function"}]`
genesisKey := "0xabd71b35d559563fea757f0f5edbde286fb8c043105b15abb7cd57189306d7d1"
bobKey, _ := coreth.NewKey(rand.Reader)
genesisBlock := new(core.Genesis)
err := json.Unmarshal([]byte(genesisJSON), genesisBlock)
checkError(err)
hk, _ := crypto.HexToECDSA(genesisKey[2:])
genKey := coreth.NewKeyFromECDSA(hk)
config.Genesis = genesisBlock
// grab the control of block generation and disable auto uncle
config.Miner.ManualMining = true
config.Miner.ManualUncle = true
// compile the smart contract
gopath := os.Getenv("GOPATH")
if gopath == "" {
gopath = build.Default.GOPATH
}
counterSrc, err := filepath.Abs(gopath + "/src/github.com/ava-labs/coreth/examples/multicoin/mc_test.sol")
checkError(err)
contracts, err := compiler.CompileSolidity("", counterSrc)
checkError(err)
contract, _ := contracts[fmt.Sprintf("%s:%s", counterSrc, "MCTest")]
// info required to generate a transaction
chainID := chainConfig.ChainID
nonce := uint64(0)
gasLimit := 10000000
gasPrice := big.NewInt(1000000000)
blockCount := 0
chain := coreth.NewETHChain(&config, nil, nil, nil)
newTxPoolHeadChan := make(chan core.NewTxPoolHeadEvent, 1)
log.Info(chain.GetGenesisBlock().Hash().Hex())
mcAbi, err := abi.JSON(strings.NewReader(mcAbiJSON))
checkError(err)
enableCode, err := mcAbi.Pack("enableMultiCoin")
checkError(err)
abiStr, err := json.Marshal(contract.Info.AbiDefinition)
contractAbi, err := abi.JSON(strings.NewReader(string(abiStr)))
checkError(err)
var contractAddr common.Address
postGen := func(block *types.Block) bool {
if blockCount == 15 {
coin0 := common.HexToHash("0x0")
state, err := chain.CurrentState()
checkError(err)
log.Info(fmt.Sprintf("genesis balance = %s", state.GetBalance(genKey.Address)))
log.Info(fmt.Sprintf("genesis mcbalance(0) = %s", state.GetBalanceMultiCoin(genKey.Address, coin0)))
log.Info(fmt.Sprintf("bob's balance = %s", state.GetBalance(bobKey.Address)))
log.Info(fmt.Sprintf("bob's mcbalance(0) = %s", state.GetBalanceMultiCoin(bobKey.Address, coin0)))
log.Info(fmt.Sprintf("contract mcbalance(0) = %s", state.GetBalanceMultiCoin(contractAddr, coin0)))
log.Info(fmt.Sprintf("state = %s", state.Dump(true, false, true)))
return true
}
if blockCount == 1 {
receipts := chain.GetReceiptsByHash(block.Hash())
if len(receipts) != 1 {
panic(fmt.Sprintf("# receipts is %d != 1", len(receipts)))
}
contractAddr = receipts[0].ContractAddress
log.Info(fmt.Sprintf("contract addr = %s", contractAddr.String()))
go func() {
// give Bob some initial balance
tx := types.NewTransaction(nonce, bobKey.Address, big.NewInt(300000000000000000), uint64(gasLimit), gasPrice, nil)
signedTx, err := types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey)
checkError(err)
chain.AddRemoteTxs([]*types.Transaction{signedTx})
nonce++
time.Sleep(20 * time.Millisecond)
// enable MC for Bob
tx = types.NewTransaction(0, vm.BuiltinAddr, big.NewInt(0), uint64(gasLimit), gasPrice, enableCode)
signedTx, err = types.SignTx(tx, types.NewEIP155Signer(chainID), bobKey.PrivateKey)
checkError(err)
chain.AddRemoteTxs([]*types.Transaction{signedTx})
time.Sleep(20 * time.Millisecond)
bobTransferInput, err := mcAbi.Pack("transfer", bobKey.Address, big.NewInt(0), big.NewInt(0), big.NewInt(100000000000000000))
checkError(err)
contractTransferInput, err := mcAbi.Pack("transfer", contractAddr, big.NewInt(0), big.NewInt(0), big.NewInt(100000000000000000))
checkError(err)
for i := 0; i < 5; i++ {
// transfer some coin0 balance to Bob
tx := types.NewTransaction(nonce, vm.BuiltinAddr, big.NewInt(0), uint64(gasLimit), gasPrice, bobTransferInput)
signedTx, err := types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey)
checkError(err)
chain.AddRemoteTxs([]*types.Transaction{signedTx})
nonce++
// transfer some coin0 balance to the contract
tx = types.NewTransaction(nonce, vm.BuiltinAddr, big.NewInt(0), uint64(gasLimit), gasPrice, contractTransferInput)
signedTx, err = types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey)
checkError(err)
chain.AddRemoteTxs([]*types.Transaction{signedTx})
nonce++
}
// test contract methods
input, err := contractAbi.Pack("withdraw", big.NewInt(0), big.NewInt(0), big.NewInt(10000000000000000))
tx = types.NewTransaction(nonce, contractAddr, big.NewInt(0), uint64(gasLimit), gasPrice, input)
signedTx, err = types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey)
checkError(err)
chain.AddRemoteTxs([]*types.Transaction{signedTx})
nonce++
input, err = contractAbi.Pack("updateBalance", big.NewInt(0))
tx = types.NewTransaction(nonce, contractAddr, big.NewInt(0), uint64(gasLimit), gasPrice, input)
signedTx, err = types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey)
checkError(err)
chain.AddRemoteTxs([]*types.Transaction{signedTx})
nonce++
}()
}
return false
}
chain.SetOnHeaderNew(func(header *types.Header) {
hid := make([]byte, 32)
_, err := rand.Read(hid)
if err != nil {
panic("cannot generate hid")
}
header.Extra = append(header.Extra, hid...)
})
chain.SetOnSealFinish(func(block *types.Block) error {
blockCount++
if postGen(block) {
return nil
}
go func() {
<-newTxPoolHeadChan
time.Sleep(10 * time.Millisecond)
chain.GenBlock()
}()
return nil
})
// start the chain
chain.GetTxPool().SubscribeNewHeadEvent(newTxPoolHeadChan)
chain.Start()
code :=<
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