本文整理汇总了Golang中github.com/ethereum/go-ethereum/core/state.StateDB类的典型用法代码示例。如果您正苦于以下问题:Golang StateDB类的具体用法?Golang StateDB怎么用?Golang StateDB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StateDB类的20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,您的评价将有助于我们的系统推荐出更棒的Golang代码示例。
示例1: Process
// Process processes the state changes according to the Ethereum rules by running
// the transaction messages using the statedb and applying any rewards to both
// the processor (coinbase) and any included uncles.
//
// Process returns the receipts and logs accumulated during the process and
// returns the amount of gas that was used in the process. If any of the
// transactions failed to execute due to insufficient gas it will return an error.
func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, vm.Logs, *big.Int, error) {
var (
receipts types.Receipts
totalUsedGas = big.NewInt(0)
err error
header = block.Header()
allLogs vm.Logs
gp = new(GasPool).AddGas(block.GasLimit())
)
// Mutate the the block and state according to any hard-fork specs
if p.config.DAOForkSupport && p.config.DAOForkBlock != nil && p.config.DAOForkBlock.Cmp(block.Number()) == 0 {
ApplyDAOHardFork(statedb)
}
// Iterate over and process the individual transactions
for i, tx := range block.Transactions() {
statedb.StartRecord(tx.Hash(), block.Hash(), i)
receipt, logs, _, err := ApplyTransaction(p.config, p.bc, gp, statedb, header, tx, totalUsedGas, cfg)
if err != nil {
return nil, nil, totalUsedGas, err
}
receipts = append(receipts, receipt)
allLogs = append(allLogs, logs...)
}
AccumulateRewards(statedb, header, block.Uncles())
return receipts, allLogs, totalUsedGas, err
}
开发者ID:Raskal8,项目名称:go-ethereum,代码行数:34,代码来源:state_processor.go
示例2: 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
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)
// Notify all subscribers
if !transientProcess {
go self.eventMux.Post(TxPostEvent{tx})
go self.eventMux.Post(logs)
}
return receipt, gas, err
}
开发者ID:General-Beck,项目名称:go-ethereum,代码行数:30,代码来源:block_processor.go
示例3: ApplyTransactions
func (self *BlockProcessor) ApplyTransactions(gp GasPool, statedb *state.StateDB, block *types.Block, txs types.Transactions, transientProcess bool) (types.Receipts, error) {
var (
receipts types.Receipts
totalUsedGas = big.NewInt(0)
err error
cumulativeSum = new(big.Int)
header = block.Header()
)
for i, tx := range txs {
statedb.StartRecord(tx.Hash(), block.Hash(), i)
receipt, txGas, err := self.ApplyTransaction(gp, statedb, header, tx, totalUsedGas, transientProcess)
if err != nil {
return nil, err
}
if err != nil {
glog.V(logger.Core).Infoln("TX err:", err)
}
receipts = append(receipts, receipt)
cumulativeSum.Add(cumulativeSum, new(big.Int).Mul(txGas, tx.GasPrice()))
}
if block.GasUsed().Cmp(totalUsedGas) != 0 {
return nil, ValidationError(fmt.Sprintf("gas used error (%v / %v)", block.GasUsed(), totalUsedGas))
}
if transientProcess {
go self.eventMux.Post(PendingBlockEvent{block, statedb.Logs()})
}
return receipts, err
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:35,代码来源:block_processor.go
示例4: ContractCall
// ContractCall implements ContractCaller.ContractCall, executing the specified
// contract with the given input data.
func (b *SimulatedBackend) ContractCall(contract common.Address, data []byte, pending bool) ([]byte, error) {
// Create a copy of the current state db to screw around with
var (
block *types.Block
statedb *state.StateDB
)
if pending {
block, statedb = b.pendingBlock, b.pendingState.Copy()
} else {
block = b.blockchain.CurrentBlock()
statedb, _ = b.blockchain.State()
}
// Set infinite balance to the a fake caller account
from := statedb.GetOrNewStateObject(common.Address{})
from.SetBalance(common.MaxBig)
// Assemble the call invocation to measure the gas usage
msg := callmsg{
from: from,
to: &contract,
gasPrice: new(big.Int),
gasLimit: common.MaxBig,
value: new(big.Int),
data: data,
}
// Execute the call and return
vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header(), nil)
gaspool := new(core.GasPool).AddGas(common.MaxBig)
out, _, err := core.ApplyMessage(vmenv, msg, gaspool)
return out, err
}
开发者ID:obscuren,项目名称:etherapis,代码行数:34,代码来源:simulated.go
示例5: TransitionState
func (sm *BlockProcessor) TransitionState(statedb *state.StateDB, parent, block *types.Block, transientProcess bool) (receipts types.Receipts, err error) {
gp := statedb.GetOrNewStateObject(block.Coinbase())
gp.SetGasLimit(block.GasLimit())
// Process the transactions on to parent state
receipts, err = sm.ApplyTransactions(gp, statedb, block, block.Transactions(), transientProcess)
if err != nil {
return nil, err
}
return receipts, nil
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:12,代码来源:block_processor.go
示例6: ApplyDAOHardFork
// ApplyDAOHardFork modifies the state database according to the DAO hard-fork
// rules, transferring all balances of a set of DAO accounts to a single refund
// contract.
func ApplyDAOHardFork(statedb *state.StateDB) {
// Retrieve the contract to refund balances into
refund := statedb.GetOrNewStateObject(params.DAORefundContract)
// Move every DAO account and extra-balance account funds into the refund contract
for _, addr := range params.DAODrainList {
if account := statedb.GetStateObject(addr); account != nil {
refund.AddBalance(account.Balance())
account.SetBalance(new(big.Int))
}
}
}
开发者ID:Raskal8,项目名称:go-ethereum,代码行数:15,代码来源:dao.go
示例7: ApplyTransaction
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 {
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
}
开发者ID:GrimDerp,项目名称:go-ethereum,代码行数:35,代码来源:block_processor.go
示例8: ApplyTransaction
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
}
开发者ID:CedarLogic,项目名称:go-ethereum,代码行数:33,代码来源:block_processor.go
示例9: RunState
func RunState(statedb *state.StateDB, env, tx map[string]string) ([]byte, state.Logs, *big.Int, error) {
var (
keyPair, _ = crypto.NewKeyPairFromSec([]byte(common.Hex2Bytes(tx["secretKey"])))
data = FromHex(tx["data"])
gas = common.Big(tx["gasLimit"])
price = common.Big(tx["gasPrice"])
value = common.Big(tx["value"])
caddr = common.HexToAddress(env["currentCoinbase"])
)
var to *common.Address
if len(tx["to"]) > 2 {
t := common.HexToAddress(tx["to"])
to = &t
}
// Set pre compiled contracts
vm.Precompiled = vm.PrecompiledContracts()
snapshot := statedb.Copy()
coinbase := statedb.GetOrNewStateObject(caddr)
coinbase.SetGasPool(common.Big(env["currentGasLimit"]))
message := NewMessage(common.BytesToAddress(keyPair.Address()), to, data, value, gas, price)
vmenv := NewEnvFromMap(statedb, env, tx)
vmenv.origin = common.BytesToAddress(keyPair.Address())
ret, _, err := core.ApplyMessage(vmenv, message, coinbase)
if core.IsNonceErr(err) || core.IsInvalidTxErr(err) {
statedb.Set(snapshot)
}
statedb.Update()
return ret, vmenv.logs, vmenv.Gas, err
}
开发者ID:CedarLogic,项目名称:go-ethereum,代码行数:33,代码来源:vm.go
示例10: ApplyTransaction
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
}
开发者ID:haegyung,项目名称:go-ethereum,代码行数:28,代码来源:block_processor.go
示例11: RunState
func RunState(statedb *state.StateDB, env, tx map[string]string) ([]byte, state.Logs, *big.Int, error) {
var (
data = common.FromHex(tx["data"])
gas = common.Big(tx["gasLimit"])
price = common.Big(tx["gasPrice"])
value = common.Big(tx["value"])
nonce = common.Big(tx["nonce"]).Uint64()
caddr = common.HexToAddress(env["currentCoinbase"])
)
var to *common.Address
if len(tx["to"]) > 2 {
t := common.HexToAddress(tx["to"])
to = &t
}
// Set pre compiled contracts
vm.Precompiled = vm.PrecompiledContracts()
snapshot := statedb.Copy()
coinbase := statedb.GetOrNewStateObject(caddr)
coinbase.SetGasLimit(common.Big(env["currentGasLimit"]))
key, _ := hex.DecodeString(tx["secretKey"])
addr := crypto.PubkeyToAddress(crypto.ToECDSA(key).PublicKey)
message := NewMessage(addr, to, data, value, gas, price, nonce)
vmenv := NewEnvFromMap(statedb, env, tx)
vmenv.origin = addr
ret, _, err := core.ApplyMessage(vmenv, message, coinbase)
if core.IsNonceErr(err) || core.IsInvalidTxErr(err) || state.IsGasLimitErr(err) {
statedb.Set(snapshot)
}
statedb.SyncObjects()
return ret, vmenv.state.Logs(), vmenv.Gas, err
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:35,代码来源:state_test_util.go
示例12: AccumulateRewards
// AccumulateRewards credits the coinbase of the given block with the
// mining reward. The total reward consists of the static block reward
// and rewards for included uncles. The coinbase of each uncle block is
// also rewarded.
func AccumulateRewards(statedb *state.StateDB, header *types.Header, uncles []*types.Header) {
reward := new(big.Int).Set(BlockReward)
r := new(big.Int)
for _, uncle := range uncles {
r.Add(uncle.Number, big8)
r.Sub(r, header.Number)
r.Mul(r, BlockReward)
r.Div(r, big8)
statedb.AddBalance(uncle.Coinbase, r)
r.Div(BlockReward, big32)
reward.Add(reward, r)
}
statedb.AddBalance(header.Coinbase, reward)
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:19,代码来源:block_processor.go
示例13: makeContract
// Converts an message in to a state object
func makeContract(msg Message, state *state.StateDB) *state.StateObject {
faddr, _ := msg.From()
addr := crypto.CreateAddress(faddr, msg.Nonce())
contract := state.GetOrNewStateObject(addr)
contract.SetInitCode(msg.Data())
return contract
}
开发者ID:CedarLogic,项目名称:go-ethereum,代码行数:10,代码来源:state_transition.go
示例14: AccumulateRewards
func AccumulateRewards(statedb *state.StateDB, block *types.Block) {
reward := new(big.Int).Set(BlockReward)
for _, uncle := range block.Uncles() {
num := new(big.Int).Add(big.NewInt(8), uncle.Number)
num.Sub(num, block.Number())
r := new(big.Int)
r.Mul(BlockReward, num)
r.Div(r, big.NewInt(8))
statedb.AddBalance(uncle.Coinbase, r)
reward.Add(reward, new(big.Int).Div(BlockReward, big.NewInt(32)))
}
// Get the account associated with the coinbase
statedb.AddBalance(block.Header().Coinbase, reward)
}
开发者ID:CedarLogic,项目名称:go-ethereum,代码行数:19,代码来源:block_processor.go
示例15: Canary
// Canary will check the 0'd address of the 4 contracts above.
// If two or more are set to anything other than a 0 the canary
// dies a horrible death.
func Canary(statedb *state.StateDB) bool {
r := new(big.Int)
r.Add(r, statedb.GetState(jeff, common.Hash{}).Big())
r.Add(r, statedb.GetState(vitalik, common.Hash{}).Big())
r.Add(r, statedb.GetState(christoph, common.Hash{}).Big())
r.Add(r, statedb.GetState(gav, common.Hash{}).Big())
return r.Cmp(big.NewInt(1)) > 0
}
开发者ID:haegyung,项目名称:go-ethereum,代码行数:12,代码来源:canary.go
示例16: ApplyTestTxs
// applies queued transactions originating from address onto the latest state
// and creates a block
// only used in tests
// - could be removed in favour of mining on testdag (natspec e2e + networking)
// + filters
func (self *XEth) ApplyTestTxs(statedb *state.StateDB, address common.Address, txc uint64) (uint64, *XEth) {
block := self.backend.ChainManager().NewBlock(address)
coinbase := statedb.GetStateObject(address)
coinbase.SetGasPool(big.NewInt(10000000))
txs := self.backend.TxPool().GetQueuedTransactions()
for i := 0; i < len(txs); i++ {
for _, tx := range txs {
if tx.Nonce() == txc {
_, _, err := core.ApplyMessage(core.NewEnv(statedb, self.backend.ChainManager(), tx, block), tx, coinbase)
if err != nil {
panic(err)
}
txc++
}
}
}
xeth := self.WithState(statedb)
return txc, xeth
}
开发者ID:hiroshi1tanaka,项目名称:gethkey,代码行数:27,代码来源:xeth.go
示例17: makeHeader
func makeHeader(parent *types.Block, state *state.StateDB) *types.Header {
time := parent.Time() + 10 // block time is fixed at 10 seconds
return &types.Header{
Root: state.Root(),
ParentHash: parent.Hash(),
Coinbase: parent.Coinbase(),
Difficulty: CalcDifficulty(int64(time), int64(parent.Time()), parent.Difficulty()),
GasLimit: CalcGasLimit(parent),
GasUsed: new(big.Int),
Number: new(big.Int).Add(parent.Number(), common.Big1),
Time: uint64(time),
}
}
开发者ID:ruflin,项目名称:go-ethereum,代码行数:13,代码来源:chain_makers.go
示例18: ValidateState
// ValidateState validates the various changes that happen after a state
// transition, such as amount of used gas, the receipt roots and the state root
// itself. ValidateState returns a database batch if the validation was a success
// otherwise nil and an error is returned.
func (v *BlockValidator) ValidateState(block, parent *types.Block, statedb *state.StateDB, receipts types.Receipts, usedGas *big.Int) (err error) {
header := block.Header()
if block.GasUsed().Cmp(usedGas) != 0 {
return ValidationError(fmt.Sprintf("gas used error (%v / %v)", block.GasUsed(), usedGas))
}
// Validate the received block's bloom with the one derived from the generated receipts.
// For valid blocks this should always validate to true.
rbloom := types.CreateBloom(receipts)
if rbloom != header.Bloom {
return fmt.Errorf("unable to replicate block's bloom=%x vs calculated bloom=%x", header.Bloom, rbloom)
}
// Tre receipt Trie's root (R = (Tr [[H1, R1], ... [Hn, R1]]))
receiptSha := types.DeriveSha(receipts)
if receiptSha != header.ReceiptHash {
return fmt.Errorf("invalid receipt root hash. received=%x calculated=%x", header.ReceiptHash, receiptSha)
}
// Validate the state root against the received state root and throw
// an error if they don't match.
if root := statedb.IntermediateRoot(); header.Root != root {
return fmt.Errorf("invalid merkle root: header=%x computed=%x", header.Root, root)
}
return nil
}
开发者ID:yexingl,项目名称:go-ethereum,代码行数:27,代码来源:block_validator.go
示例19: Canary
// Canary will check the 0'd address of the 4 contracts above.
// If two or more are set to anything other than a 0 the canary
// dies a horrible death.
func Canary(statedb *state.StateDB) bool {
var r int
if (statedb.GetState(jeff, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
r++
}
if (statedb.GetState(gav, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
r++
}
if (statedb.GetState(christoph, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
r++
}
if (statedb.GetState(vitalik, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
r++
}
return r > 1
}
开发者ID:nilcons-contrib,项目名称:go-ethereum,代码行数:19,代码来源:canary.go
示例20: Process
// Process processes the state changes according to the Ethereum rules by running
// the transaction messages using the statedb and applying any rewards to both
// the processor (coinbase) and any included uncles.
//
// Process returns the receipts and logs accumulated during the process and
// returns the amount of gas that was used in the process. If any of the
// transactions failed to execute due to insufficient gas it will return an error.
func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, vm.Logs, *big.Int, error) {
var (
receipts types.Receipts
totalUsedGas = big.NewInt(0)
err error
header = block.Header()
allLogs vm.Logs
gp = new(GasPool).AddGas(block.GasLimit())
)
for i, tx := range block.Transactions() {
statedb.StartRecord(tx.Hash(), block.Hash(), i)
receipt, logs, _, err := ApplyTransaction(p.config, p.bc, gp, statedb, header, tx, totalUsedGas, cfg)
if err != nil {
return nil, nil, totalUsedGas, err
}
receipts = append(receipts, receipt)
allLogs = append(allLogs, logs...)
}
AccumulateRewards(statedb, header, block.Uncles())
return receipts, allLogs, totalUsedGas, err
}
开发者ID:Xiaoyang-Zhu,项目名称:go-ethereum,代码行数:30,代码来源:state_processor.go
注:本文中的github.com/ethereum/go-ethereum/core/state.StateDB类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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