237 lines
6.7 KiB
Go
237 lines
6.7 KiB
Go
package ethchain
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"github.com/ethereum/eth-go/ethutil"
|
|
"math/big"
|
|
)
|
|
|
|
func (sm *StateManager) MakeStateObject(state *State, tx *Transaction) *StateObject {
|
|
contract := MakeContract(tx, state)
|
|
if contract != nil {
|
|
state.states[string(tx.CreationAddress())] = contract.state
|
|
|
|
return contract
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (sm *StateManager) EvalScript(state *State, script []byte, object *StateObject, tx *Transaction, block *Block) (ret []byte, gas *big.Int, err error) {
|
|
account := state.GetAccount(tx.Sender())
|
|
|
|
err = account.ConvertGas(tx.Gas, tx.GasPrice)
|
|
if err != nil {
|
|
ethutil.Config.Log.Debugln(err)
|
|
return
|
|
}
|
|
|
|
closure := NewClosure(account, object, script, state, tx.Gas, tx.GasPrice)
|
|
vm := NewVm(state, sm, RuntimeVars{
|
|
Origin: account.Address(),
|
|
BlockNumber: block.BlockInfo().Number,
|
|
PrevHash: block.PrevHash,
|
|
Coinbase: block.Coinbase,
|
|
Time: block.Time,
|
|
Diff: block.Difficulty,
|
|
Value: tx.Value,
|
|
//Price: tx.GasPrice,
|
|
})
|
|
ret, gas, err = closure.Call(vm, tx.Data, nil)
|
|
|
|
// Update the account (refunds)
|
|
state.UpdateStateObject(account)
|
|
state.UpdateStateObject(object)
|
|
|
|
return
|
|
}
|
|
|
|
func (self *StateManager) ProcessTransaction(tx *Transaction, coinbase *StateObject, state *State, toContract bool) (gas *big.Int, err error) {
|
|
fmt.Printf("state root before update %x\n", state.Root())
|
|
defer func() {
|
|
if r := recover(); r != nil {
|
|
ethutil.Config.Log.Infoln(r)
|
|
err = fmt.Errorf("%v", r)
|
|
}
|
|
}()
|
|
|
|
gas = new(big.Int)
|
|
addGas := func(g *big.Int) { gas.Add(gas, g) }
|
|
addGas(GasTx)
|
|
|
|
// Get the sender
|
|
sender := state.GetAccount(tx.Sender())
|
|
|
|
if sender.Nonce != tx.Nonce {
|
|
err = NonceError(tx.Nonce, sender.Nonce)
|
|
return
|
|
}
|
|
|
|
sender.Nonce += 1
|
|
defer func() {
|
|
//state.UpdateStateObject(sender)
|
|
// Notify all subscribers
|
|
self.Ethereum.Reactor().Post("newTx:post", tx)
|
|
}()
|
|
|
|
txTotalBytes := big.NewInt(int64(len(tx.Data)))
|
|
//fmt.Println("txTotalBytes", txTotalBytes)
|
|
//txTotalBytes.Div(txTotalBytes, ethutil.Big32)
|
|
addGas(new(big.Int).Mul(txTotalBytes, GasData))
|
|
|
|
rGas := new(big.Int).Set(gas)
|
|
rGas.Mul(gas, tx.GasPrice)
|
|
|
|
// Make sure there's enough in the sender's account. Having insufficient
|
|
// funds won't invalidate this transaction but simple ignores it.
|
|
totAmount := new(big.Int).Add(tx.Value, rGas)
|
|
if sender.Amount.Cmp(totAmount) < 0 {
|
|
state.UpdateStateObject(sender)
|
|
err = fmt.Errorf("[TXPL] Insufficient amount in sender's (%x) account", tx.Sender())
|
|
return
|
|
}
|
|
|
|
coinbase.BuyGas(gas, tx.GasPrice)
|
|
state.UpdateStateObject(coinbase)
|
|
fmt.Printf("1. root %x\n", state.Root())
|
|
|
|
// Get the receiver
|
|
receiver := state.GetAccount(tx.Recipient)
|
|
|
|
// Send Tx to self
|
|
if bytes.Compare(tx.Recipient, tx.Sender()) == 0 {
|
|
// Subtract the fee
|
|
sender.SubAmount(rGas)
|
|
} else {
|
|
// Subtract the amount from the senders account
|
|
sender.SubAmount(totAmount)
|
|
state.UpdateStateObject(sender)
|
|
fmt.Printf("3. root %x\n", state.Root())
|
|
|
|
// Add the amount to receivers account which should conclude this transaction
|
|
receiver.AddAmount(tx.Value)
|
|
state.UpdateStateObject(receiver)
|
|
fmt.Printf("2. root %x\n", state.Root())
|
|
}
|
|
|
|
ethutil.Config.Log.Infof("[TXPL] Processed Tx %x\n", tx.Hash())
|
|
|
|
return
|
|
}
|
|
|
|
func (sm *StateManager) ApplyTransaction(coinbase []byte, state *State, block *Block, tx *Transaction) (totalGasUsed *big.Int, err error) {
|
|
/*
|
|
Applies transactions to the given state and creates new
|
|
state objects where needed.
|
|
|
|
If said objects needs to be created
|
|
run the initialization script provided by the transaction and
|
|
assume there's a return value. The return value will be set to
|
|
the script section of the state object.
|
|
*/
|
|
var (
|
|
addTotalGas = func(gas *big.Int) { totalGasUsed.Add(totalGasUsed, gas) }
|
|
gas = new(big.Int)
|
|
script []byte
|
|
)
|
|
totalGasUsed = big.NewInt(0)
|
|
snapshot := state.Snapshot()
|
|
|
|
ca := state.GetAccount(coinbase)
|
|
// Apply the transaction to the current state
|
|
gas, err = sm.ProcessTransaction(tx, ca, state, false)
|
|
addTotalGas(gas)
|
|
fmt.Println("gas used by tx", gas)
|
|
|
|
if tx.CreatesContract() {
|
|
if err == nil {
|
|
// Create a new state object and the transaction
|
|
// as it's data provider.
|
|
contract := sm.MakeStateObject(state, tx)
|
|
if contract != nil {
|
|
fmt.Println(Disassemble(contract.Init()))
|
|
// Evaluate the initialization script
|
|
// and use the return value as the
|
|
// script section for the state object.
|
|
script, gas, err = sm.EvalScript(state, contract.Init(), contract, tx, block)
|
|
fmt.Println("gas used by eval", gas)
|
|
addTotalGas(gas)
|
|
fmt.Println("total =", totalGasUsed)
|
|
|
|
fmt.Println("script len =", len(script))
|
|
|
|
if err != nil {
|
|
err = fmt.Errorf("[STATE] Error during init script run %v", err)
|
|
return
|
|
}
|
|
contract.script = script
|
|
state.UpdateStateObject(contract)
|
|
} else {
|
|
err = fmt.Errorf("[STATE] Unable to create contract")
|
|
}
|
|
} else {
|
|
err = fmt.Errorf("[STATE] contract creation tx: %v for sender %x", err, tx.Sender())
|
|
}
|
|
} else {
|
|
// Find the state object at the "recipient" address. If
|
|
// there's an object attempt to run the script.
|
|
stateObject := state.GetStateObject(tx.Recipient)
|
|
if err == nil && stateObject != nil && len(stateObject.Script()) > 0 {
|
|
_, gas, err = sm.EvalScript(state, stateObject.Script(), stateObject, tx, block)
|
|
addTotalGas(gas)
|
|
}
|
|
}
|
|
|
|
parent := sm.bc.GetBlock(block.PrevHash)
|
|
total := new(big.Int).Add(block.GasUsed, totalGasUsed)
|
|
limit := block.CalcGasLimit(parent)
|
|
if total.Cmp(limit) > 0 {
|
|
state.Revert(snapshot)
|
|
err = GasLimitError(total, limit)
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// Apply transactions uses the transaction passed to it and applies them onto
|
|
// the current processing state.
|
|
func (sm *StateManager) ApplyTransactions(coinbase []byte, state *State, block *Block, txs []*Transaction) ([]*Receipt, []*Transaction) {
|
|
// Process each transaction/contract
|
|
var receipts []*Receipt
|
|
var validTxs []*Transaction
|
|
var ignoredTxs []*Transaction // Transactions which go over the gasLimit
|
|
|
|
totalUsedGas := big.NewInt(0)
|
|
|
|
for _, tx := range txs {
|
|
usedGas, err := sm.ApplyTransaction(coinbase, state, block, tx)
|
|
if err != nil {
|
|
if IsNonceErr(err) {
|
|
continue
|
|
}
|
|
if IsGasLimitErr(err) {
|
|
ignoredTxs = append(ignoredTxs, tx)
|
|
// We need to figure out if we want to do something with thse txes
|
|
ethutil.Config.Log.Debugln("Gastlimit:", err)
|
|
continue
|
|
}
|
|
|
|
ethutil.Config.Log.Infoln(err)
|
|
}
|
|
|
|
accumelative := new(big.Int).Set(totalUsedGas.Add(totalUsedGas, usedGas))
|
|
receipt := &Receipt{tx, ethutil.CopyBytes(state.Root().([]byte)), accumelative}
|
|
|
|
receipts = append(receipts, receipt)
|
|
validTxs = append(validTxs, tx)
|
|
}
|
|
|
|
fmt.Println("################# MADE\n", receipts, "\n############################")
|
|
|
|
// Update the total gas used for the block (to be mined)
|
|
block.GasUsed = totalUsedGas
|
|
|
|
return receipts, validTxs
|
|
}
|