Golang Transaction.Hash方法代碼示例

func (self *BlockProcessor) ApplyTransaction(coinbase *state.StateObject, statedb *state.StateDB, block *types.Block, tx *types.Transaction, usedGas *big.Int, transientProcess bool) (*types.Receipt, *big.Int, error) {
	// If we are mining this block and validating we want to set the logs back to 0
	//statedb.EmptyLogs()

	cb := statedb.GetStateObject(coinbase.Address())
	_, gas, err := ApplyMessage(NewEnv(statedb, self.bc, tx, block), tx, cb)
	if err != nil && (IsNonceErr(err) || state.IsGasLimitErr(err) || IsInvalidTxErr(err)) {
		// If the account is managed, remove the invalid nonce.
		//from, _ := tx.From()
		//self.bc.TxState().RemoveNonce(from, tx.Nonce())
		return nil, nil, err
	}

	// Update the state with pending changes
	statedb.Update()

	cumulative := new(big.Int).Set(usedGas.Add(usedGas, gas))
	receipt := types.NewReceipt(statedb.Root().Bytes(), cumulative)

	logs := statedb.GetLogs(tx.Hash())
	receipt.SetLogs(logs)
	receipt.Bloom = types.CreateBloom(types.Receipts{receipt})

	glog.V(logger.Debug).Infoln(receipt)

	// Notify all subscribers
	if !transientProcess {
		go self.eventMux.Post(TxPostEvent{tx})
		go self.eventMux.Post(logs)
	}

	return receipt, gas, err
}

func NewTx(tx *types.Transaction) *Transaction {
	sender, err := tx.From()
	if err != nil {
		return nil
	}
	hash := tx.Hash().Hex()

	var receiver string
	if to := tx.To(); to != nil {
		receiver = to.Hex()
	} else {
		from, _ := tx.From()
		receiver = crypto.CreateAddress(from, tx.Nonce()).Hex()
	}
	createsContract := core.MessageCreatesContract(tx)

	var data string
	if createsContract {
		data = strings.Join(core.Disassemble(tx.Data()), "\n")
	} else {
		data = common.ToHex(tx.Data())
	}

	return &Transaction{ref: tx, Hash: hash, Value: common.CurrencyToString(tx.Value()), Address: receiver, Contract: createsContract, Gas: tx.Gas().String(), GasPrice: tx.GasPrice().String(), Data: data, Sender: sender.Hex(), CreatesContract: createsContract, RawData: common.ToHex(tx.Data())}
}

func (self *BlockProcessor) ApplyTransaction(gp GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int, transientProcess bool) (*types.Receipt, *big.Int, error) {
	_, gas, err := ApplyMessage(NewEnv(statedb, self.bc, tx, header), tx, gp)
	if err != nil {
		return nil, nil, err
	}

	// Update the state with pending changes
	statedb.SyncIntermediate()

	usedGas.Add(usedGas, gas)
	receipt := types.NewReceipt(statedb.Root().Bytes(), usedGas)
	receipt.TxHash = tx.Hash()
	receipt.GasUsed = new(big.Int).Set(gas)
	if MessageCreatesContract(tx) {
		from, _ := tx.From()
		receipt.ContractAddress = crypto.CreateAddress(from, tx.Nonce())
	}

	logs := statedb.GetLogs(tx.Hash())
	receipt.SetLogs(logs)
	receipt.Bloom = types.CreateBloom(types.Receipts{receipt})

	glog.V(logger.Debug).Infoln(receipt)

	// Notify all subscribers
	if !transientProcess {
		go self.eventMux.Post(TxPostEvent{tx})
		go self.eventMux.Post(logs)
	}

	return receipt, gas, err
}

// validate and queue transactions.
func (self *TxPool) add(tx *types.Transaction) error {
	hash := tx.Hash()

	if self.pending[hash] != nil {
		return fmt.Errorf("Known transaction (%x)", hash[:4])
	}
	err := self.validateTx(tx)
	if err != nil {
		return err
	}
	self.queueTx(hash, tx)

	if glog.V(logger.Debug) {
		var toname string
		if to := tx.To(); to != nil {
			toname = common.Bytes2Hex(to[:4])
		} else {
			toname = "[NEW_CONTRACT]"
		}
		// we can ignore the error here because From is
		// verified in ValidateTransaction.
		f, _ := tx.From()
		from := common.Bytes2Hex(f[:4])
		glog.Infof("(t) %x => %s (%v) %x\n", from, toname, tx.Value, hash)
	}

	return nil
}

func (self *BlockProcessor) ApplyTransaction(coinbase *state.StateObject, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int, transientProcess bool) (*types.Receipt, *big.Int, error) {
	// If we are mining this block and validating we want to set the logs back to 0

	cb := statedb.GetStateObject(coinbase.Address())
	_, gas, err := ApplyMessage(NewEnv(statedb, self.bc, tx, header), tx, cb)
	if err != nil && (IsNonceErr(err) || state.IsGasLimitErr(err) || IsInvalidTxErr(err)) {
		return nil, nil, err
	}

	// Update the state with pending changes
	statedb.Update()

	usedGas.Add(usedGas, gas)
	receipt := types.NewReceipt(statedb.Root().Bytes(), usedGas)
	logs := statedb.GetLogs(tx.Hash())
	receipt.SetLogs(logs)
	receipt.Bloom = types.CreateBloom(types.Receipts{receipt})

	glog.V(logger.Debug).Infoln(receipt)

	// Notify all subscribers
	if !transientProcess {
		go self.eventMux.Post(TxPostEvent{tx})
		go self.eventMux.Post(logs)
	}

	return receipt, gas, err
}

func (self *XEth) sign(tx *types.Transaction, from common.Address, didUnlock bool) (*types.Transaction, error) {
	hash := tx.Hash()
	sig, err := self.doSign(from, hash, didUnlock)
	if err != nil {
		return tx, err
	}
	return tx.WithSignature(sig)
}

func (self *ImportMaster) importTx(tx *types.Transaction, blockId *bson.ObjectId) {
	if glog.V(logger.Info) {
		glog.Infoln("Importing tx", tx.Hash().Hex())
	}
	err := self.txCollection.Insert(self.parseTx(tx, blockId))
	if err != nil {
		clilogger.Infoln(err)
	}
}

func (pool *TxPool) addTx(tx *types.Transaction) {
	if _, ok := pool.txs[tx.Hash()]; !ok {
		pool.txs[tx.Hash()] = tx
		// Notify the subscribers. This event is posted in a goroutine
		// because it's possible that somewhere during the post "Remove transaction"
		// gets called which will then wait for the global tx pool lock and deadlock.
		go pool.eventMux.Post(TxPreEvent{tx})
	}
}

func (self *XEth) sign(tx *types.Transaction, from common.Address, didUnlock bool) error {
	hash := tx.Hash()
	sig, err := self.doSign(from, hash, didUnlock)
	if err != nil {
		return err
	}
	tx.SetSignatureValues(sig)
	return nil
}

// validateTx checks whether a transaction is valid according
// to the consensus rules.
func (pool *TxPool) validateTx(tx *types.Transaction) error {
	local := pool.localTx.contains(tx.Hash())
	// Drop transactions under our own minimal accepted gas price
	if !local && pool.minGasPrice.Cmp(tx.GasPrice()) > 0 {
		return ErrCheap
	}

	currentState, err := pool.currentState()
	if err != nil {
		return err
	}

	from, err := tx.From()
	if err != nil {
		return ErrInvalidSender
	}

	// Make sure the account exist. Non existent accounts
	// haven't got funds and well therefor never pass.
	if !currentState.HasAccount(from) {
		return ErrNonExistentAccount
	}

	// Last but not least check for nonce errors
	if currentState.GetNonce(from) > tx.Nonce() {
		return ErrNonce
	}

	// Check the transaction doesn't exceed the current
	// block limit gas.
	if pool.gasLimit().Cmp(tx.Gas()) < 0 {
		return ErrGasLimit
	}

	// Transactions can't be negative. This may never happen
	// using RLP decoded transactions but may occur if you create
	// a transaction using the RPC for example.
	if tx.Value().Cmp(common.Big0) < 0 {
		return ErrNegativeValue
	}

	// Transactor should have enough funds to cover the costs
	// cost == V + GP * GL
	if currentState.GetBalance(from).Cmp(tx.Cost()) < 0 {
		return ErrInsufficientFunds
	}

	intrGas := IntrinsicGas(tx.Data(), MessageCreatesContract(tx), pool.homestead)
	if tx.Gas().Cmp(intrGas) < 0 {
		return ErrIntrinsicGas
	}

	return nil
}

// AddTx adds a transaction to the generated block. If no coinbase has
// been set, the block's coinbase is set to the zero address.
//
// AddTx panics if the transaction cannot be executed. In addition to
// the protocol-imposed limitations (gas limit, etc.), there are some
// further limitations on the content of transactions that can be
// added. Notably, contract code relying on the BLOCKHASH instruction
// will panic during execution.
func (b *BlockGen) AddTx(tx *types.Transaction) {
	if b.gasPool == nil {
		b.SetCoinbase(common.Address{})
	}
	b.statedb.StartRecord(tx.Hash(), common.Hash{}, len(b.txs))
	receipt, _, _, err := ApplyTransaction(nil, b.gasPool, b.statedb, b.header, tx, b.header.GasUsed, nil)
	if err != nil {
		panic(err)
	}
	b.txs = append(b.txs, tx)
	b.receipts = append(b.receipts, receipt)
}

func (self *ImportMaster) parseTx(tx *types.Transaction, blockId *bson.ObjectId) *Transaction {
	hash := tx.Hash().Hex()
	from, err := tx.From()
	if err != nil {
		utils.Fatalf("Could not parse from address: %v", err)
	}
	var recipient string
	if tx.Recipient != nil {
		recipient = tx.Recipient.Hex()
	}
	txx := &Transaction{hash, recipient, from.Hex(), tx.Amount.String(), tx.Price.String(), tx.GasLimit.String(), tx.Payload, blockId}
	return txx
}

// AddTx adds a transaction to the generated block. If no coinbase has
// been set, the block's coinbase is set to the zero address.
//
// AddTx panics if the transaction cannot be executed. In addition to
// the protocol-imposed limitations (gas limit, etc.), there are some
// further limitations on the content of transactions that can be
// added. Notably, contract code relying on the BLOCKHASH instruction
// will panic during execution.
func (b *BlockGen) AddTx(tx *types.Transaction) {
	if b.coinbase == nil {
		b.SetCoinbase(common.Address{})
	}
	_, gas, err := ApplyMessage(NewEnv(b.statedb, nil, tx, b.header), tx, b.coinbase)
	if err != nil {
		panic(err)
	}
	b.statedb.SyncIntermediate()
	b.header.GasUsed.Add(b.header.GasUsed, gas)
	receipt := types.NewReceipt(b.statedb.Root().Bytes(), b.header.GasUsed)
	logs := b.statedb.GetLogs(tx.Hash())
	receipt.SetLogs(logs)
	receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
	b.txs = append(b.txs, tx)
	b.receipts = append(b.receipts, receipt)
}

func newTx(t *types.Transaction) *tx {
	from, _ := t.From()
	var to string
	if t := t.To(); t != nil {
		to = t.Hex()
	}

	return &tx{
		tx:       t,
		To:       to,
		From:     from.Hex(),
		Value:    t.Value().String(),
		Nonce:    strconv.Itoa(int(t.Nonce())),
		Data:     "0x" + common.Bytes2Hex(t.Data()),
		GasLimit: t.Gas().String(),
		GasPrice: t.GasPrice().String(),
		Hash:     t.Hash().Hex(),
	}
}

func NewTransactionRes(tx *types.Transaction) *TransactionRes {
	if tx == nil {
		return nil
	}

	var v = new(TransactionRes)
	v.Hash = newHexData(tx.Hash())
	v.Nonce = newHexNum(tx.Nonce())
	// v.BlockHash =
	// v.BlockNumber =
	// v.TxIndex =
	from, _ := tx.From()
	v.From = newHexData(from)
	v.To = newHexData(tx.To())
	v.Value = newHexNum(tx.Value())
	v.Gas = newHexNum(tx.Gas())
	v.GasPrice = newHexNum(tx.GasPrice())
	v.Input = newHexData(tx.Data())
	return v
}