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More mining rework

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This commit is contained in:
Maran 2014-03-20 11:20:29 +01:00
parent 2be2fc7974
commit ae837c4719
7 changed files with 171 additions and 39 deletions
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3
ethchain/block.go
View File

@ -304,6 +304,9 @@ func NewUncleBlockFromValue(header *ethutil.Value) *Block {
func (block *Block) String() string {
return fmt.Sprintf("Block(%x):\nPrevHash:%x\nUncleSha:%x\nCoinbase:%x\nRoot:%x\nTxSha:%x\nDiff:%v\nTime:%d\nNonce:%x\nTxs:%d\n", block.Hash(), block.PrevHash, block.UncleSha, block.Coinbase, block.state.trie.Root, block.TxSha, block.Difficulty, block.Time, block.Nonce, len(block.transactions))
}
func (block *Block) GetRoot() interface{} {
return block.state.trie.Root
}
//////////// UNEXPORTED /////////////////
func (block *Block) header() []interface{} {

3
ethchain/block_chain.go
View File

@ -44,7 +44,6 @@ func (bc *BlockChain) NewBlock(coinbase []byte, txs []*Transaction) *Block {
hash = bc.LastBlockHash
lastBlockTime = bc.CurrentBlock.Time
}
block := CreateBlock(
root,
hash,
@ -181,8 +180,8 @@ func (bc *BlockChain) SetTotalDifficulty(td *big.Int) {
// Add a block to the chain and record addition information
func (bc *BlockChain) Add(block *Block) {
bc.writeBlockInfo(block)
// Prepare the genesis block
bc.CurrentBlock = block
bc.LastBlockHash = block.Hash()

16
ethchain/dagger.go
View File

@ -11,7 +11,7 @@ import (
)
type PoW interface {
Search(block *Block, minerChan chan ethutil.React) []byte
Search(block *Block, reactChan chan ethutil.React) []byte
Verify(hash []byte, diff *big.Int, nonce []byte) bool
}
@ -19,7 +19,7 @@ type EasyPow struct {
hash *big.Int
}
func (pow *EasyPow) Search(block *Block, minerChan chan ethutil.React) []byte {
func (pow *EasyPow) Search(block *Block, reactChan chan ethutil.React) []byte {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
hash := block.HashNoNonce()
diff := block.Difficulty
@ -28,15 +28,9 @@ func (pow *EasyPow) Search(block *Block, minerChan chan ethutil.React) []byte {
for {
select {
case chanMessage := <-minerChan:
if _, ok := chanMessage.Resource.(*Block); ok {
log.Println("BREAKING OUT: BLOCK")
return nil
}
if _, ok := chanMessage.Resource.(*Transaction); ok {
log.Println("BREAKING OUT: TX")
return nil
}
case <-reactChan:
log.Println("[pow] Received reactor event; breaking out.")
return nil
default:
i++
if i%1234567 == 0 {

28
ethchain/state_manager.go
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@ -50,9 +50,6 @@ type StateManager struct {
// Comparative state it used for comparing and validating end
// results
compState *State
// Mining state, solely used for mining
miningState *State
}
func NewStateManager(ethereum EthManager) *StateManager {
@ -65,7 +62,6 @@ func NewStateManager(ethereum EthManager) *StateManager {
bc: ethereum.BlockChain(),
}
sm.procState = ethereum.BlockChain().CurrentBlock.State()
return sm
}
@ -73,10 +69,6 @@ func (sm *StateManager) ProcState() *State {
return sm.procState
}
func (sm *StateManager) MiningState() *State {
return sm.miningState
}
// Watches any given address and puts it in the address state store
func (sm *StateManager) WatchAddr(addr []byte) *AccountState {
//XXX account := sm.bc.CurrentBlock.state.GetAccount(addr)
@ -105,8 +97,6 @@ func (sm *StateManager) MakeContract(tx *Transaction) {
sm.procState.states[string(tx.Hash()[12:])] = contract.state
}
}
func (sm *StateManager) ApplyTransaction(block *Block, tx *Transaction) {
}
func (sm *StateManager) ApplyTransactions(block *Block, txs []*Transaction) {
// Process each transaction/contract
@ -136,17 +126,13 @@ func (sm *StateManager) Prepare(processer *State, comparative *State) {
sm.procState = processer
}
func (sm *StateManager) PrepareMiningState() {
sm.miningState = sm.BlockChain().CurrentBlock.State()
}
// 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) error {
func (sm *StateManager) ProcessBlock(block *Block, dontReact bool) error {
// Processing a blocks may never happen simultaneously
sm.mutex.Lock()
defer sm.mutex.Unlock()
@ -155,7 +141,6 @@ func (sm *StateManager) ProcessBlock(block *Block) error {
// nodes this won't happen because Commit would have been called
// before that.
defer sm.bc.CurrentBlock.Undo()
hash := block.Hash()
if sm.bc.HasBlock(hash) {
@ -207,7 +192,9 @@ func (sm *StateManager) ProcessBlock(block *Block) error {
}
ethutil.Config.Log.Infof("[STATE] Added block #%d (%x)\n", block.BlockInfo().Number, block.Hash())
sm.Ethereum.Reactor().Post("newBlock", block)
if dontReact == false {
sm.Ethereum.Reactor().Post("newBlock", block)
}
} else {
fmt.Println("total diff failed")
}
@ -285,15 +272,16 @@ func CalculateUncleReward(block *Block) *big.Int {
}
func (sm *StateManager) AccumelateRewards(block *Block) error {
// Get the coinbase rlp data
//XXX addr := processor.state.GetAccount(block.Coinbase)
addr := sm.procState.GetAccount(block.Coinbase)
// Reward amount of ether to the coinbase address
addr.AddFee(CalculateBlockReward(block, len(block.Uncles)))
//XXX processor.state.UpdateAccount(block.Coinbase, addr)
sm.procState.UpdateAccount(block.Coinbase, addr)
var acc []byte
copy(acc, block.Coinbase)
sm.procState.UpdateAccount(acc, addr)
for _, uncle := range block.Uncles {
uncleAddr := sm.procState.GetAccount(uncle.Coinbase)
uncleAddr.AddFee(CalculateUncleReward(uncle))

9
ethchain/transaction_pool.go
View File

@ -91,7 +91,6 @@ func (pool *TxPool) addTransaction(tx *Transaction) {
// Process transaction validates the Tx and processes funds from the
// sender to the recipient.
func (pool *TxPool) ProcessTransaction(tx *Transaction, block *Block) (err error) {
log.Println("Processing TX")
defer func() {
if r := recover(); r != nil {
log.Println(r)
@ -105,11 +104,11 @@ func (pool *TxPool) ProcessTransaction(tx *Transaction, block *Block) (err error
// funds won't invalidate this transaction but simple ignores it.
totAmount := new(big.Int).Add(tx.Value, new(big.Int).Mul(TxFee, TxFeeRat))
if sender.Amount.Cmp(totAmount) < 0 {
return errors.New("Insufficient amount in sender's account")
return errors.New("[TXPL] Insufficient amount in sender's account")
}
if sender.Nonce != tx.Nonce {
return fmt.Errorf("Invalid nonce %d(%d)", tx.Nonce, sender.Nonce)
return fmt.Errorf("[TXPL] Invalid account nonce, state nonce is %d transactoin nonce is %d instead", sender.Nonce, tx.Nonce)
}
// Get the receiver
@ -145,7 +144,7 @@ func (pool *TxPool) ValidateTransaction(tx *Transaction) error {
block := pool.Ethereum.BlockChain().CurrentBlock
// Something has gone horribly wrong if this happens
if block == nil {
return errors.New("No last block on the block chain")
return errors.New("[TXPL] No last block on the block chain")
}
// Get the sender
@ -156,7 +155,7 @@ func (pool *TxPool) ValidateTransaction(tx *Transaction) error {
// Make sure there's enough in the sender's account. Having insufficient
// funds won't invalidate this transaction but simple ignores it.
if sender.Amount.Cmp(totAmount) < 0 {
return fmt.Errorf("Insufficient amount in sender's (%x) account", tx.Sender())
return fmt.Errorf("[TXPL] Insufficient amount in sender's (%x) account", tx.Sender())
}
// Increment the nonce making each tx valid only once to prevent replay

149
ethminer/miner.go Normal file
View File

@ -0,0 +1,149 @@
package ethminer
import (
"bytes"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethutil"
"github.com/ethereum/eth-go/ethwire"
"log"
)
type Miner struct {
pow ethchain.PoW
ethereum ethchain.EthManager
coinbase []byte
reactChan chan ethutil.React
txs []*ethchain.Transaction
uncles []*ethchain.Block
block *ethchain.Block
powChan chan []byte
quitChan chan ethutil.React
}
func NewDefaultMiner(coinbase []byte, ethereum ethchain.EthManager) Miner {
reactChan := make(chan ethutil.React, 1) // This is the channel that receives 'updates' when ever a new transaction or block comes in
powChan := make(chan []byte, 1) // This is the channel that receives valid sha hases for a given block
quitChan := make(chan ethutil.React, 1) // This is the channel that can exit the miner thread
ethereum.Reactor().Subscribe("newBlock", reactChan)
ethereum.Reactor().Subscribe("newTx", reactChan)
// We need the quit chan to be a Reactor event.
// The POW search method is actually blocking and if we don't
// listen to the reactor events inside of the pow itself
// The miner overseer will never get the reactor events themselves
// Only after the miner will find the sha
ethereum.Reactor().Subscribe("newBlock", quitChan)
ethereum.Reactor().Subscribe("newTx", quitChan)
miner := Miner{
pow: &ethchain.EasyPow{},
ethereum: ethereum,
coinbase: coinbase,
reactChan: reactChan,
powChan: powChan,
quitChan: quitChan,
}
// Insert initial TXs in our little miner 'pool'
miner.txs = ethereum.TxPool().Flush()
miner.block = ethereum.BlockChain().NewBlock(miner.coinbase, miner.txs)
return miner
}
func (miner *Miner) Start() {
// Prepare inital block
miner.ethereum.StateManager().Prepare(miner.block.State(), miner.block.State())
go func() { miner.listener() }()
}
func (miner *Miner) listener() {
for {
select {
case chanMessage := <-miner.reactChan:
if block, ok := chanMessage.Resource.(*ethchain.Block); ok {
log.Println("[miner] Got new block via Reactor")
if bytes.Compare(miner.ethereum.BlockChain().CurrentBlock.Hash(), block.Hash()) == 0 {
// TODO: Perhaps continue mining to get some uncle rewards
log.Println("[miner] New top block found resetting state")
// Filter out which Transactions we have that were not in this block
var newtxs []*ethchain.Transaction
for _, tx := range miner.txs {
found := false
for _, othertx := range block.Transactions() {
if bytes.Compare(tx.Hash(), othertx.Hash()) == 0 {
found = true
}
}
if found == false {
newtxs = append(newtxs, tx)
}
}
miner.txs = newtxs
// Setup a fresh state to mine on
miner.block = miner.ethereum.BlockChain().NewBlock(miner.coinbase, miner.txs)
} else {
if bytes.Compare(block.PrevHash, miner.ethereum.BlockChain().CurrentBlock.PrevHash) == 0 {
log.Println("[miner] Adding uncle block")
miner.uncles = append(miner.uncles, block)
miner.ethereum.StateManager().Prepare(miner.block.State(), miner.block.State())
}
}
}
if tx, ok := chanMessage.Resource.(*ethchain.Transaction); ok {
log.Println("[miner] Got new transaction from Reactor", tx)
found := false
for _, ctx := range miner.txs {
if found = bytes.Compare(ctx.Hash(), tx.Hash()) == 0; found {
break
}
}
if found == false {
log.Println("[miner] We did not know about this transaction, adding")
miner.txs = append(miner.txs, tx)
miner.block.SetTransactions(miner.txs)
} else {
log.Println("[miner] We already had this transaction, ignoring")
}
}
default:
log.Println("[miner] Mining on block. Includes", len(miner.txs), "transactions")
// Apply uncles
if len(miner.uncles) > 0 {
miner.block.SetUncles(miner.uncles)
}
// Apply all transactions to the block
miner.ethereum.StateManager().ApplyTransactions(miner.block, miner.block.Transactions())
miner.ethereum.StateManager().AccumelateRewards(miner.block)
// Search the nonce
log.Println("[miner] Initialision complete, starting mining")
miner.block.Nonce = miner.pow.Search(miner.block, miner.quitChan)
if miner.block.Nonce != nil {
miner.ethereum.StateManager().PrepareDefault(miner.block)
err := miner.ethereum.StateManager().ProcessBlock(miner.block, true)
if err != nil {
log.Println("Error result from process block:", err)
log.Println(miner.block)
} else {
if !miner.ethereum.StateManager().Pow.Verify(miner.block.HashNoNonce(), miner.block.Difficulty, miner.block.Nonce) {
log.Printf("Second stage verification error: Block's nonce is invalid (= %v)\n", ethutil.Hex(miner.block.Nonce))
}
miner.ethereum.Broadcast(ethwire.MsgBlockTy, []interface{}{miner.block.Value().Val})
log.Printf("[miner] 🔨 Mined block %x\n", miner.block.Hash())
log.Println(miner.block)
miner.txs = []*ethchain.Transaction{} // Move this somewhere neat
miner.block = miner.ethereum.BlockChain().NewBlock(miner.coinbase, miner.txs)
}
}
}
}
}

2
peer.go
View File

@ -295,7 +295,7 @@ func (p *Peer) HandleInbound() {
block = ethchain.NewBlockFromRlpValue(msg.Data.Get(i))
p.ethereum.StateManager().PrepareDefault(block)
err = p.ethereum.StateManager().ProcessBlock(block)
err = p.ethereum.StateManager().ProcessBlock(block, true)
if err != nil {
if ethutil.Config.Debug {