本文整理汇总了Golang中github.com/expanse-project/go-expanse/core/types.Transaction类的典型用法代码示例。如果您正苦于以下问题:Golang Transaction类的具体用法?Golang Transaction怎么用?Golang Transaction使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Transaction类的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: promoteTx
// promoteTx adds a transaction to the pending (processable) list of transactions.
//
// Note, this method assumes the pool lock is held!
func (pool *TxPool) promoteTx(addr common.Address, hash common.Hash, tx *types.Transaction) {
// Init delayed since tx pool could have been started before any state sync
if pool.pendingState == nil {
pool.resetState()
}
// Try to insert the transaction into the pending queue
if pool.pending[addr] == nil {
pool.pending[addr] = newTxList(true)
}
list := pool.pending[addr]
inserted, old := list.Add(tx)
if !inserted {
// An older transaction was better, discard this
delete(pool.all, hash)
return
}
// Otherwise discard any previous transaction and mark this
if old != nil {
delete(pool.all, old.Hash())
}
pool.all[hash] = tx // Failsafe to work around direct pending inserts (tests)
// Set the potentially new pending nonce and notify any subsystems of the new tx
pool.beats[addr] = time.Now()
pool.pendingState.SetNonce(addr, tx.Nonce()+1)
go pool.eventMux.Post(TxPreEvent{tx})
}
示例2: queueTx
// queueTx will queue an unknown transaction
func (self *TxPool) queueTx(hash common.Hash, tx *types.Transaction) {
from, _ := tx.From() // already validated
if self.queue[from] == nil {
self.queue[from] = make(map[common.Hash]*types.Transaction)
}
self.queue[from][hash] = tx
}
示例3: Put
// Put inserts a new transaction into the map, also updating the map's nonce
// index. If a transaction already exists with the same nonce, it's overwritten.
func (m *txSortedMap) Put(tx *types.Transaction) {
nonce := tx.Nonce()
if m.items[nonce] == nil {
heap.Push(m.index, nonce)
}
m.items[nonce], m.cache = tx, nil
}
示例4: sign
func (self *XEth) sign(tx *types.Transaction, from common.Address, didUnlock bool) (*types.Transaction, error) {
hash := tx.SigHash()
sig, err := self.doSign(from, hash, didUnlock)
if err != nil {
return tx, err
}
return tx.WithSignature(sig)
}
示例5: Remove
// Remove deletes a transaction from the maintained list, returning whether the
// transaction was found, and also returning any transaction invalidated due to
// the deletion (strict mode only).
func (l *txList) Remove(tx *types.Transaction) (bool, types.Transactions) {
// Remove the transaction from the set
nonce := tx.Nonce()
if removed := l.txs.Remove(nonce); !removed {
return false, nil
}
// In strict mode, filter out non-executable transactions
if l.strict {
return true, l.txs.Filter(func(tx *types.Transaction) bool { return tx.Nonce() > nonce })
}
return true, nil
}
示例6: addTx
// addTx will add a transaction to the pending (processable queue) list of transactions
func (pool *TxPool) addTx(hash common.Hash, addr common.Address, tx *types.Transaction) {
if _, ok := pool.pending[hash]; !ok {
pool.pending[hash] = tx
// Increment the nonce on the pending state. This can only happen if
// the nonce is +1 to the previous one.
pool.pendingState.SetNonce(addr, tx.Nonce()+1)
// 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})
}
}
示例7: ApplyTransaction
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
}
示例8: enqueueTx
// enqueueTx inserts a new transaction into the non-executable transaction queue.
//
// Note, this method assumes the pool lock is held!
func (pool *TxPool) enqueueTx(hash common.Hash, tx *types.Transaction) {
// Try to insert the transaction into the future queue
from, _ := tx.From() // already validated
if pool.queue[from] == nil {
pool.queue[from] = newTxList(false)
}
inserted, old := pool.queue[from].Add(tx)
if !inserted {
return // An older transaction was better, discard this
}
// Discard any previous transaction and mark this
if old != nil {
delete(pool.all, old.Hash())
}
pool.all[hash] = tx
}
示例9: AddTx
// 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{})
}
_, gas, err := ApplyMessage(NewEnv(b.statedb, nil, tx, b.header), tx, b.gasPool)
if err != nil {
panic(err)
}
root := b.statedb.IntermediateRoot()
b.header.GasUsed.Add(b.header.GasUsed, gas)
receipt := types.NewReceipt(root.Bytes(), b.header.GasUsed)
logs := b.statedb.GetLogs(tx.Hash())
receipt.Logs = logs
receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
b.txs = append(b.txs, tx)
b.receipts = append(b.receipts, receipt)
}
示例10: add
// 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
}
示例11: Add
// Add tries to insert a new transaction into the list, returning whether the
// transaction was accepted, and if yes, any previous transaction it replaced.
//
// If the new transaction is accepted into the list, the lists' cost threshold
// is also potentially updated.
func (l *txList) Add(tx *types.Transaction) (bool, *types.Transaction) {
// If there's an older better transaction, abort
old := l.txs.Get(tx.Nonce())
if old != nil && old.GasPrice().Cmp(tx.GasPrice()) >= 0 {
return false, nil
}
// Otherwise overwrite the old transaction with the current one
l.txs.Put(tx)
if cost := tx.Cost(); l.costcap.Cmp(cost) < 0 {
l.costcap = cost
}
return true, old
}
示例12: ApplyTransaction
// ApplyTransaction attemps to apply a transaction to the given state database
// and uses the input parameters for its environment.
//
// ApplyTransactions returns the generated receipts and vm logs during the
// execution of the state transition phase.
func ApplyTransaction(bc *BlockChain, gp *GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int) (*types.Receipt, vm.Logs, *big.Int, error) {
_, gas, err := ApplyMessage(NewEnv(statedb, bc, tx, header), tx, gp)
if err != nil {
return nil, nil, nil, err
}
// Update the state with pending changes
usedGas.Add(usedGas, gas)
receipt := types.NewReceipt(statedb.IntermediateRoot().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.Logs = logs
receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
glog.V(logger.Debug).Infoln(receipt)
return receipt, logs, gas, err
}
示例13: add
// add validates a transaction and inserts it into the non-executable queue for
// later pending promotion and execution.
func (pool *TxPool) add(tx *types.Transaction) error {
// If the transaction is alreayd known, discard it
hash := tx.Hash()
if pool.all[hash] != nil {
return fmt.Errorf("Known transaction: %x", hash[:4])
}
// Otherwise ensure basic validation passes and queue it up
if err := pool.validateTx(tx); err != nil {
return err
}
pool.enqueueTx(hash, tx)
// Print a log message if low enough level is set
if glog.V(logger.Debug) {
rcpt := "[NEW_CONTRACT]"
if to := tx.To(); to != nil {
rcpt = common.Bytes2Hex(to[:4])
}
from, _ := tx.From() // from already verified during tx validation
glog.Infof("(t) 0x%x => %s (%v) %x\n", from[:4], rcpt, tx.Value, hash)
}
return nil
}
示例14: NewTx
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())}
}
示例15: validateTx
// 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.Exist(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
}