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state_processor.go
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/
state_processor.go
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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package core
import (
"fmt"
"math/big"
"runtime"
"sync"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/misc"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
)
// StateProcessor is a basic Processor, which takes care of transitioning
// state from one point to another.
//
// StateProcessor implements Processor.
type StateProcessor struct {
config *params.ChainConfig // Chain configuration options
bc *BlockChain // Canonical block chain
engine consensus.Engine // Consensus engine used for block rewards
}
type CalculatedBlock struct {
block *types.Block
stop bool
}
// NewStateProcessor initialises a new StateProcessor.
func NewStateProcessor(config *params.ChainConfig, bc *BlockChain, engine consensus.Engine) *StateProcessor {
return &StateProcessor{
config: config,
bc: bc,
engine: engine,
}
}
// 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, balanceFee map[common.Address]*big.Int) (types.Receipts, []*types.Log, uint64, error) {
var (
receipts types.Receipts
usedGas = new(uint64)
header = block.Header()
allLogs []*types.Log
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 {
misc.ApplyDAOHardFork(statedb)
}
if common.TIPSigning.Cmp(header.Number) == 0 {
statedb.DeleteAddress(common.HexToAddress(common.BlockSigners))
}
InitSignerInTransactions(p.config, header, block.Transactions())
balanceUpdated := map[common.Address]*big.Int{}
totalFeeUsed := big.NewInt(0)
for i, tx := range block.Transactions() {
// check black-list txs after hf
if (block.Number().Uint64() >= common.BlackListHFNumber) && !common.IsTestnet {
// check if sender is in black list
if tx.From() != nil && common.Blacklist[*tx.From()] {
return nil, nil, 0, fmt.Errorf("Block contains transaction with sender in black-list: %v", tx.From().Hex())
}
// check if receiver is in black list
if tx.To() != nil && common.Blacklist[*tx.To()] {
return nil, nil, 0, fmt.Errorf("Block contains transaction with receiver in black-list: %v", tx.To().Hex())
}
}
statedb.Prepare(tx.Hash(), block.Hash(), i)
receipt, gas, err, tokenFeeUsed := ApplyTransaction(p.config, balanceFee, p.bc, nil, gp, statedb, header, tx, usedGas, cfg)
if err != nil {
return nil, nil, 0, err
}
receipts = append(receipts, receipt)
allLogs = append(allLogs, receipt.Logs...)
if tokenFeeUsed {
fee := new(big.Int).SetUint64(gas)
if block.Header().Number.Cmp(common.TIPTRC21Fee) > 0 {
fee = fee.Mul(fee, common.TRC21GasPrice)
}
balanceFee[*tx.To()] = new(big.Int).Sub(balanceFee[*tx.To()], fee)
balanceUpdated[*tx.To()] = balanceFee[*tx.To()]
totalFeeUsed = totalFeeUsed.Add(totalFeeUsed, fee)
}
}
state.UpdateTRC21Fee(statedb, balanceUpdated, totalFeeUsed)
// Finalize the block, applying any consensus engine specific extras (e.g. block rewards)
p.engine.Finalize(p.bc, header, statedb, block.Transactions(), block.Uncles(), receipts)
return receipts, allLogs, *usedGas, nil
}
func (p *StateProcessor) ProcessBlockNoValidator(cBlock *CalculatedBlock, statedb *state.StateDB, cfg vm.Config, balanceFee map[common.Address]*big.Int) (types.Receipts, []*types.Log, uint64, error) {
block := cBlock.block
var (
receipts types.Receipts
usedGas = new(uint64)
header = block.Header()
allLogs []*types.Log
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 {
misc.ApplyDAOHardFork(statedb)
}
if common.TIPSigning.Cmp(header.Number) == 0 {
statedb.DeleteAddress(common.HexToAddress(common.BlockSigners))
}
if cBlock.stop {
return nil, nil, 0, ErrStopPreparingBlock
}
InitSignerInTransactions(p.config, header, block.Transactions())
balanceUpdated := map[common.Address]*big.Int{}
totalFeeUsed := big.NewInt(0)
if cBlock.stop {
return nil, nil, 0, ErrStopPreparingBlock
}
// Iterate over and process the individual transactions
receipts = make([]*types.Receipt, block.Transactions().Len())
for i, tx := range block.Transactions() {
// check black-list txs after hf
if (block.Number().Uint64() >= common.BlackListHFNumber) && !common.IsTestnet {
// check if sender is in black list
if tx.From() != nil && common.Blacklist[*tx.From()] {
return nil, nil, 0, fmt.Errorf("Block contains transaction with sender in black-list: %v", tx.From().Hex())
}
// check if receiver is in black list
if tx.To() != nil && common.Blacklist[*tx.To()] {
return nil, nil, 0, fmt.Errorf("Block contains transaction with receiver in black-list: %v", tx.To().Hex())
}
}
statedb.Prepare(tx.Hash(), block.Hash(), i)
receipt, gas, err, tokenFeeUsed := ApplyTransaction(p.config, balanceFee, p.bc, nil, gp, statedb, header, tx, usedGas, cfg)
if err != nil {
return nil, nil, 0, err
}
if cBlock.stop {
return nil, nil, 0, ErrStopPreparingBlock
}
receipts[i] = receipt
allLogs = append(allLogs, receipt.Logs...)
if tokenFeeUsed {
fee := new(big.Int).SetUint64(gas)
if block.Header().Number.Cmp(common.TIPTRC21Fee) > 0 {
fee = fee.Mul(fee, common.TRC21GasPrice)
}
balanceFee[*tx.To()] = new(big.Int).Sub(balanceFee[*tx.To()], fee)
balanceUpdated[*tx.To()] = balanceFee[*tx.To()]
totalFeeUsed = totalFeeUsed.Add(totalFeeUsed, fee)
}
}
state.UpdateTRC21Fee(statedb, balanceUpdated, totalFeeUsed)
// Finalize the block, applying any consensus engine specific extras (e.g. block rewards)
p.engine.Finalize(p.bc, header, statedb, block.Transactions(), block.Uncles(), receipts)
return receipts, allLogs, *usedGas, nil
}
// ApplyTransaction attempts to apply a transaction to the given state database
// and uses the input parameters for its environment. It returns the receipt
// for the transaction, gas used and an error if the transaction failed,
// indicating the block was invalid.
func ApplyTransaction(config *params.ChainConfig, tokensFee map[common.Address]*big.Int, bc *BlockChain, author *common.Address, gp *GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *uint64, cfg vm.Config) (*types.Receipt, uint64, error, bool) {
if tx.To() != nil && tx.To().String() == common.BlockSigners && config.IsTIPSigning(header.Number) {
return ApplySignTransaction(config, statedb, header, tx, usedGas)
}
var balanceFee *big.Int
if tx.To() != nil {
if value, ok := tokensFee[*tx.To()]; ok {
balanceFee = value
}
}
msg, err := tx.AsMessage(types.MakeSigner(config, header.Number), balanceFee,header.Number)
if err != nil {
return nil, 0, err, false
}
// Create a new context to be used in the EVM environment
context := NewEVMContext(msg, header, bc, author)
// Create a new environment which holds all relevant information
// about the transaction and calling mechanisms.
vmenv := vm.NewEVM(context, statedb, config, cfg)
// If we don't have an explicit author (i.e. not mining), extract from the header
var beneficiary common.Address
if author == nil {
beneficiary, _ = bc.Engine().Author(header) // Ignore error, we're past header validation
} else {
beneficiary = *author
}
coinbaseOwner := statedb.GetOwner(beneficiary)
// Apply the transaction to the current state (included in the env)
_, gas, failed, err := ApplyMessage(vmenv, msg, gp, coinbaseOwner)
if err != nil {
return nil, 0, err, false
}
// Update the state with pending changes
var root []byte
if config.IsByzantium(header.Number) {
statedb.Finalise(true)
} else {
root = statedb.IntermediateRoot(config.IsEIP158(header.Number)).Bytes()
}
*usedGas += gas
// Create a new receipt for the transaction, storing the intermediate root and gas used by the tx
// based on the eip phase, we're passing wether the root touch-delete accounts.
receipt := types.NewReceipt(root, failed, *usedGas)
receipt.TxHash = tx.Hash()
receipt.GasUsed = gas
// if the transaction created a contract, store the creation address in the receipt.
if msg.To() == nil {
receipt.ContractAddress = crypto.CreateAddress(vmenv.Context.Origin, tx.Nonce())
}
// Set the receipt logs and create a bloom for filtering
receipt.Logs = statedb.GetLogs(tx.Hash())
receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
if balanceFee != nil && failed {
state.PayFeeWithTRC21TxFail(statedb, msg.From(), *tx.To())
}
return receipt, gas, err, balanceFee != nil
}
func ApplySignTransaction(config *params.ChainConfig, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *uint64) (*types.Receipt, uint64, error, bool) {
// Update the state with pending changes
var root []byte
if config.IsByzantium(header.Number) {
statedb.Finalise(true)
} else {
root = statedb.IntermediateRoot(config.IsEIP158(header.Number)).Bytes()
}
from, err := types.Sender(types.MakeSigner(config, header.Number), tx)
if err != nil {
return nil, 0, err, false
}
nonce := statedb.GetNonce(from)
if nonce < tx.Nonce() {
return nil, 0, ErrNonceTooHigh, false
} else if nonce > tx.Nonce() {
return nil, 0, ErrNonceTooLow, false
}
statedb.SetNonce(from, nonce+1)
// Create a new receipt for the transaction, storing the intermediate root and gas used by the tx
// based on the eip phase, we're passing wether the root touch-delete accounts.
receipt := types.NewReceipt(root, false, *usedGas)
receipt.TxHash = tx.Hash()
receipt.GasUsed = 0
// if the transaction created a contract, store the creation address in the receipt.
// Set the receipt logs and create a bloom for filtering
log := &types.Log{}
log.Address = common.HexToAddress(common.BlockSigners)
log.BlockNumber = header.Number.Uint64()
statedb.AddLog(log)
receipt.Logs = statedb.GetLogs(tx.Hash())
receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
return receipt, 0, nil, false
}
func InitSignerInTransactions(config *params.ChainConfig, header *types.Header, txs types.Transactions) {
nWorker := runtime.NumCPU()
signer := types.MakeSigner(config, header.Number)
chunkSize := txs.Len() / nWorker
if txs.Len()%nWorker != 0 {
chunkSize++
}
wg := sync.WaitGroup{}
wg.Add(nWorker)
for i := 0; i < nWorker; i++ {
from := i * chunkSize
to := from + chunkSize
if to > txs.Len() {
to = txs.Len()
}
go func(from int, to int) {
for j := from; j < to; j++ {
types.CacheSigner(signer, txs[j])
txs[j].CacheHash()
}
wg.Done()
}(from, to)
}
wg.Wait()
}