Changed how changes are being applied to states

This commit is contained in:
obscuren
2014-05-17 14:07:52 +02:00
parent 88686cbed2
commit 8730dfdcc2
10 changed files with 82 additions and 98 deletions

View File

@ -39,20 +39,13 @@ type StateManager struct {
// The ethereum manager interface
Ethereum EthManager
// The managed states
// Processor state. Anything processed will be applied to this
// state
procState *State
// Comparative state it used for comparing and validating end
// results
compState *State
// Transiently state. The trans state isn't ever saved, validated and
// it could be used for setting account nonces without effecting
// the main states.
transState *State
// Manifest for keeping changes regarding state objects. See `notify`
// XXX Should we move the manifest to the State object. Benefit:
// * All states can keep their own local changes
//manifest *Manifest
// Mining state. The mining state is used purely and solely by the mining
// operation.
miningState *State
}
func NewStateManager(ethereum EthManager) *StateManager {
@ -62,30 +55,39 @@ func NewStateManager(ethereum EthManager) *StateManager {
Pow: &EasyPow{},
Ethereum: ethereum,
bc: ethereum.BlockChain(),
//manifest: NewManifest(),
}
sm.procState = ethereum.BlockChain().CurrentBlock.State()
sm.transState = sm.procState.Copy()
sm.transState = ethereum.BlockChain().CurrentBlock.State().Copy()
sm.miningState = ethereum.BlockChain().CurrentBlock.State().Copy()
return sm
}
func (sm *StateManager) ProcState() *State {
return sm.procState
func (sm *StateManager) CurrentState() *State {
return sm.Ethereum.BlockChain().CurrentBlock.State()
}
func (sm *StateManager) TransState() *State {
return sm.transState
}
func (sm *StateManager) MiningState() *State {
return sm.miningState
}
func (sm *StateManager) NewMiningState() *State {
sm.miningState = sm.Ethereum.BlockChain().CurrentBlock.State().Copy()
return sm.miningState
}
func (sm *StateManager) BlockChain() *BlockChain {
return sm.bc
}
func (sm *StateManager) MakeContract(tx *Transaction) *StateObject {
contract := MakeContract(tx, sm.procState)
func (sm *StateManager) MakeContract(state *State, tx *Transaction) *StateObject {
contract := MakeContract(tx, state)
if contract != nil {
sm.procState.states[string(tx.Hash()[12:])] = contract.state
state.states[string(tx.Hash()[12:])] = contract.state
return contract
}
@ -95,7 +97,7 @@ func (sm *StateManager) MakeContract(tx *Transaction) *StateObject {
// Apply transactions uses the transaction passed to it and applies them onto
// the current processing state.
func (sm *StateManager) ApplyTransactions(block *Block, txs []*Transaction) {
func (sm *StateManager) ApplyTransactions(state *State, block *Block, txs []*Transaction) {
// Process each transaction/contract
for _, tx := range txs {
// If there's no recipient, it's a contract
@ -104,9 +106,9 @@ func (sm *StateManager) ApplyTransactions(block *Block, txs []*Transaction) {
if tx.IsContract() {
err := sm.Ethereum.TxPool().ProcessTransaction(tx, block, false)
if err == nil {
contract := sm.MakeContract(tx)
contract := sm.MakeContract(state, tx)
if contract != nil {
sm.EvalScript(contract.Init(), contract, tx, block)
sm.EvalScript(state, contract.Init(), contract, tx, block)
} else {
ethutil.Config.Log.Infoln("[STATE] Unable to create contract")
}
@ -115,9 +117,9 @@ func (sm *StateManager) ApplyTransactions(block *Block, txs []*Transaction) {
}
} else {
err := sm.Ethereum.TxPool().ProcessTransaction(tx, block, false)
contract := sm.procState.GetContract(tx.Recipient)
contract := state.GetContract(tx.Recipient)
if err == nil && len(contract.Script()) > 0 {
sm.EvalScript(contract.Script(), contract, tx, block)
sm.EvalScript(state, contract.Script(), contract, tx, block)
} else if err != nil {
ethutil.Config.Log.Infoln("[STATE] process:", err)
}
@ -125,20 +127,8 @@ func (sm *StateManager) ApplyTransactions(block *Block, txs []*Transaction) {
}
}
// The prepare function, prepares the state manager for the next
// "ProcessBlock" action.
func (sm *StateManager) Prepare(processor *State, comparative *State) {
sm.compState = comparative
sm.procState = processor
}
// Default prepare function
func (sm *StateManager) PrepareDefault(block *Block) {
sm.Prepare(sm.BlockChain().CurrentBlock.State(), block.State())
}
// Block processing and validating with a given (temporarily) state
func (sm *StateManager) ProcessBlock(block *Block, dontReact bool) error {
func (sm *StateManager) ProcessBlock(state *State, block *Block, dontReact bool) error {
// Processing a blocks may never happen simultaneously
sm.mutex.Lock()
defer sm.mutex.Unlock()
@ -153,7 +143,7 @@ func (sm *StateManager) ProcessBlock(block *Block, dontReact bool) error {
// we don't want to undo but since undo only happens on dirty
// nodes this won't happen because Commit would have been called
// before that.
defer sm.bc.CurrentBlock.Undo()
defer state.Reset()
// Check if we have the parent hash, if it isn't known we discard it
// Reasons might be catching up or simply an invalid block
@ -162,7 +152,7 @@ func (sm *StateManager) ProcessBlock(block *Block, dontReact bool) error {
}
// Process the transactions on to current block
sm.ApplyTransactions(sm.bc.CurrentBlock, block.Transactions())
sm.ApplyTransactions(state, sm.bc.CurrentBlock, block.Transactions())
// Block validation
if err := sm.ValidateBlock(block); err != nil {
@ -172,19 +162,20 @@ func (sm *StateManager) ProcessBlock(block *Block, dontReact bool) error {
// I'm not sure, but I don't know if there should be thrown
// any errors at this time.
if err := sm.AccumelateRewards(block); err != nil {
if err := sm.AccumelateRewards(state, block); err != nil {
fmt.Println("[SM] Error accumulating reward", err)
return err
}
if !sm.compState.Cmp(sm.procState) {
return fmt.Errorf("Invalid merkle root. Expected %x, got %x", sm.compState.trie.Root, sm.procState.trie.Root)
//if !sm.compState.Cmp(state) {
if !block.State().Cmp(state) {
return fmt.Errorf("Invalid merkle root. Expected %x, got %x", block.State().trie.Root, state.trie.Root)
}
// Calculate the new total difficulty and sync back to the db
if sm.CalculateTD(block) {
// Sync the current block's state to the database and cancelling out the deferred Undo
sm.procState.Sync()
state.Sync()
// Add the block to the chain
sm.bc.Add(block)
@ -193,14 +184,14 @@ func (sm *StateManager) ProcessBlock(block *Block, dontReact bool) error {
if dontReact == false {
sm.Ethereum.Reactor().Post("newBlock", block)
sm.procState.manifest.Reset()
state.manifest.Reset()
}
sm.notifyChanges()
sm.notifyChanges(state)
sm.Ethereum.Broadcast(ethwire.MsgBlockTy, []interface{}{block.Value().Val})
sm.Ethereum.TxPool().RemoveInvalid(sm.procState)
sm.Ethereum.TxPool().RemoveInvalid(state)
} else {
fmt.Println("total diff failed")
}
@ -276,21 +267,21 @@ func CalculateUncleReward(block *Block) *big.Int {
return UncleReward
}
func (sm *StateManager) AccumelateRewards(block *Block) error {
func (sm *StateManager) AccumelateRewards(state *State, block *Block) error {
// Get the account associated with the coinbase
account := sm.procState.GetAccount(block.Coinbase)
account := state.GetAccount(block.Coinbase)
// Reward amount of ether to the coinbase address
account.AddAmount(CalculateBlockReward(block, len(block.Uncles)))
addr := make([]byte, len(block.Coinbase))
copy(addr, block.Coinbase)
sm.procState.UpdateStateObject(account)
state.UpdateStateObject(account)
for _, uncle := range block.Uncles {
uncleAccount := sm.procState.GetAccount(uncle.Coinbase)
uncleAccount := state.GetAccount(uncle.Coinbase)
uncleAccount.AddAmount(CalculateUncleReward(uncle))
sm.procState.UpdateStateObject(uncleAccount)
state.UpdateStateObject(uncleAccount)
}
return nil
@ -300,8 +291,8 @@ func (sm *StateManager) Stop() {
sm.bc.Stop()
}
func (sm *StateManager) EvalScript(script []byte, object *StateObject, tx *Transaction, block *Block) {
account := sm.procState.GetAccount(tx.Sender())
func (sm *StateManager) EvalScript(state *State, script []byte, object *StateObject, tx *Transaction, block *Block) {
account := state.GetAccount(tx.Sender())
err := account.ConvertGas(tx.Gas, tx.GasPrice)
if err != nil {
@ -309,8 +300,8 @@ func (sm *StateManager) EvalScript(script []byte, object *StateObject, tx *Trans
return
}
closure := NewClosure(account, object, script, sm.procState, tx.Gas, tx.GasPrice)
vm := NewVm(sm.procState, sm, RuntimeVars{
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,
@ -323,16 +314,16 @@ func (sm *StateManager) EvalScript(script []byte, object *StateObject, tx *Trans
closure.Call(vm, tx.Data, nil)
// Update the account (refunds)
sm.procState.UpdateStateObject(account)
sm.procState.UpdateStateObject(object)
state.UpdateStateObject(account)
state.UpdateStateObject(object)
}
func (sm *StateManager) notifyChanges() {
for addr, stateObject := range sm.procState.manifest.objectChanges {
func (sm *StateManager) notifyChanges(state *State) {
for addr, stateObject := range state.manifest.objectChanges {
sm.Ethereum.Reactor().Post("object:"+addr, stateObject)
}
for stateObjectAddr, mappedObjects := range sm.procState.manifest.storageChanges {
for stateObjectAddr, mappedObjects := range state.manifest.storageChanges {
for addr, value := range mappedObjects {
sm.Ethereum.Reactor().Post("storage:"+stateObjectAddr+":"+addr, &StorageState{[]byte(stateObjectAddr), []byte(addr), value})
}