mirror of https://github.com/status-im/op-geth.git
107 lines
3.4 KiB
Go
107 lines
3.4 KiB
Go
package core
|
|
|
|
import (
|
|
"math/big"
|
|
|
|
"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/logger"
|
|
"github.com/ethereum/go-ethereum/logger/glog"
|
|
)
|
|
|
|
var (
|
|
big8 = big.NewInt(8)
|
|
big32 = big.NewInt(32)
|
|
)
|
|
|
|
type StateProcessor struct {
|
|
bc *BlockChain
|
|
}
|
|
|
|
func NewStateProcessor(bc *BlockChain) *StateProcessor {
|
|
return &StateProcessor{bc}
|
|
}
|
|
|
|
// 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.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
|
|
}
|
|
|
|
// ApplyTransaction attempts 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, cfg *vm.Config) (*types.Receipt, vm.Logs, *big.Int, error) {
|
|
_, gas, err := ApplyMessage(NewEnv(statedb, bc, tx, header, cfg), 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
|
|
}
|
|
|
|
// 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)
|
|
}
|