Basic structure miner

1 files changed, 30 insertions, 254 deletions

diff --git a/miner/miner.go b/miner/miner.go
index 1f4fc2170..f184042dc 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -1,291 +1,67 @@
-/*
-	This file is part of go-ethereum
-
-	go-ethereum 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.
-
-	go-ethereum 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 General Public License for more details.
-
-	You should have received a copy of the GNU Lesser General Public License
-	along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
-*/
-/**
- * @authors
- * 	Jeffrey Wilcke <i@jev.io>
- * @date 2014
- *
- */
-
 package miner
 
 import (
-	"fmt"
 	"math/big"
-	"sort"
 
-	"github.com/ethereum/c-ethash/go-ethash"
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/eth"
-	"github.com/ethereum/go-ethereum/ethutil"
-	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/pow"
-	"github.com/ethereum/go-ethereum/state"
+	"github.com/ethereum/go-ethereum/pow/ezp"
 )
 
-var dx = []byte{0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42}
-var dy = []byte{0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43}
-
-const epochLen = uint64(1000)
-
-func getSeed(chainMan *core.ChainManager, block *types.Block) (x []byte, y []byte) {
-	if block.Number().Uint64() == 0 {
-		return dx, dy
-	} else if block.Number().Uint64()%epochLen == 0 {
-		x, y = getSeed(chainMan, chainMan.GetBlock(block.ParentHash()))
-		if (block.Number().Uint64()/epochLen)%2 > 0 {
-			y = crypto.Sha3(append(y, block.ParentHash()...))
-		} else {
-			x = crypto.Sha3(append(x, block.ParentHash()...))
-		}
-		return x, y
-	} else {
-		return getSeed(chainMan, chainMan.GetBlock(block.ParentHash()))
-	}
-}
-
-type LocalTx struct {
-	To       []byte `json:"to"`
-	Data     []byte `json:"data"`
-	Gas      string `json:"gas"`
-	GasPrice string `json:"gasPrice"`
-	Value    string `json:"value"`
-}
-
-func (self *LocalTx) Sign(key []byte) *types.Transaction {
-	return nil
-}
-
 var minerlogger = logger.NewLogger("MINER")
 
 type Miner struct {
-	eth    *eth.Ethereum
-	events event.Subscription
-
-	uncles    []*types.Header
-	localTxs  map[int]*LocalTx
-	localTxId int
-
-	pow       pow.PoW
-	quitCh    chan struct{}
-	powQuitCh chan struct{}
-
-	Coinbase []byte
-
-	mining bool
+	worker *worker
 
 	MinAcceptedGasPrice *big.Int
 	Extra               string
-}
-
-func New(coinbase []byte, eth *eth.Ethereum) *Miner {
-	return &Miner{
-		eth:                 eth,
-		powQuitCh:           make(chan struct{}),
-		mining:              false,
-		localTxs:            make(map[int]*LocalTx),
-		MinAcceptedGasPrice: big.NewInt(10000000000000),
-		Coinbase:            coinbase,
-	}
-}
-
-func (self *Miner) GetPow() pow.PoW {
-	return self.pow
-}
-
-func (self *Miner) AddLocalTx(tx *LocalTx) int {
-	minerlogger.Infof("Added local tx (%x %v / %v)\n", tx.To[0:4], tx.GasPrice, tx.Value)
-
-	self.localTxId++
-	self.localTxs[self.localTxId] = tx
-	self.eth.EventMux().Post(tx)
 
-	return self.localTxId
+	coinbase []byte
+	mining   bool
 }
 
-func (self *Miner) RemoveLocalTx(id int) {
-	if tx := self.localTxs[id]; tx != nil {
-		minerlogger.Infof("Removed local tx (%x %v / %v)\n", tx.To[0:4], tx.GasPrice, tx.Value)
+func New(coinbase []byte, eth *eth.Ethereum) *Miner {
+	miner := &Miner{
+		coinbase: coinbase,
+		worker:   newWorker(coinbase, eth),
 	}
-	self.eth.EventMux().Post(&LocalTx{})
-
-	delete(self.localTxs, id)
-}
 
-func (self *Miner) Start() {
-	if self.mining {
-		return
+	for i := 0; i < 4; i++ {
+		miner.worker.register(NewCpuMiner(i, ezp.New()))
 	}
 
-	minerlogger.Infoln("Starting mining operations")
-	self.mining = true
-	self.quitCh = make(chan struct{})
-	self.powQuitCh = make(chan struct{})
-
-	mux := self.eth.EventMux()
-	self.events = mux.Subscribe(core.NewBlockEvent{}, core.TxPreEvent{}, &LocalTx{})
-
-	go self.update()
-	go self.mine()
-}
-
-func (self *Miner) Stop() {
-	if !self.mining {
-		return
-	}
-
-	self.mining = false
-
-	minerlogger.Infoln("Stopping mining operations")
-
-	self.events.Unsubscribe()
-
-	close(self.quitCh)
-	close(self.powQuitCh)
+	return miner
 }
 
 func (self *Miner) Mining() bool {
 	return self.mining
 }
 
-func (self *Miner) update() {
-out:
-	for {
-		select {
-		case event := <-self.events.Chan():
-			switch event := event.(type) {
-			case core.NewBlockEvent:
-				block := event.Block
-				if self.eth.ChainManager().HasBlock(block.Hash()) {
-					self.reset()
-					self.eth.TxPool().RemoveSet(block.Transactions())
-					go self.mine()
-				} else if true {
-					// do uncle stuff
-				}
-			case core.TxPreEvent, *LocalTx:
-				self.reset()
-				go self.mine()
-			}
-		case <-self.quitCh:
-			break out
-		}
-	}
-}
-
-func (self *Miner) reset() {
-	close(self.powQuitCh)
-	self.powQuitCh = make(chan struct{})
-}
-
-func (self *Miner) mine() {
-	var (
-		blockProcessor = self.eth.BlockProcessor()
-		chainMan       = self.eth.ChainManager()
-		block          = chainMan.NewBlock(self.Coinbase)
-		state          = state.New(block.Root(), self.eth.Db())
-	)
-	block.Header().Extra = self.Extra
-
-	// Apply uncles
-	block.SetUncles(self.uncles)
-
-	parent := chainMan.GetBlock(block.ParentHash())
-	coinbase := state.GetOrNewStateObject(block.Coinbase())
-	coinbase.SetGasPool(core.CalcGasLimit(parent, block))
-
-	transactions := self.finiliseTxs()
-
-	// Accumulate all valid transactions and apply them to the new state
-	// Error may be ignored. It's not important during mining
-	receipts, txs, _, erroneous, err := blockProcessor.ApplyTransactions(coinbase, state, block, transactions, true)
-	if err != nil {
-		minerlogger.Debugln(err)
-	}
-	self.eth.TxPool().RemoveSet(erroneous)
-
-	block.SetTransactions(txs)
-	block.SetReceipts(receipts)
-
-	// Accumulate the rewards included for this block
-	blockProcessor.AccumulateRewards(state, block, parent)
-
-	state.Update(ethutil.Big0)
-	block.SetRoot(state.Root())
-
-	minerlogger.Infof("Mining on block. Includes %v transactions", len(transactions))
-
-	x, _ := getSeed(chainMan, block)
-	self.pow, err = ethash.New(x, block)
-	if err != nil {
-		fmt.Println("miner gave back err", err)
-		return
-	}
+func (self *Miner) Start() {
+	self.worker.start()
 
-	// Find a valid nonce
-	nonce := self.pow.Search(block, self.powQuitCh)
-	if nonce != nil {
-		block.Header().Nonce = nonce
-		err := chainMan.InsertChain(types.Blocks{block})
-		if err != nil {
-			minerlogger.Infoln(err)
-		} else {
-			self.eth.EventMux().Post(core.NewMinedBlockEvent{block})
+	self.worker.commitNewWork()
 
-			minerlogger.Infof("🔨  Mined block %x\n", block.Hash())
-			minerlogger.Infoln(block)
+	/*
+		timer := time.NewTicker(time.Second)
+		for {
+			select {
+			case <-timer.C:
+				fmt.Printf("%d workers. %d/Khash\n", len(self.worker.agents), self.HashRate())
+			}
 		}
-
-		go self.mine()
-	}
+	*/
 }
 
-func (self *Miner) finiliseTxs() types.Transactions {
-	// Sort the transactions by nonce in case of odd network propagation
-	actualSize := len(self.localTxs) // See copy below
-	txs := make(types.Transactions, actualSize+self.eth.TxPool().Size())
-
-	state := self.eth.ChainManager().TransState()
-	// XXX This has to change. Coinbase is, for new, same as key.
-	key := self.eth.KeyManager()
-	for i, ltx := range self.localTxs {
-		tx := types.NewTransactionMessage(ltx.To, ethutil.Big(ltx.Value), ethutil.Big(ltx.Gas), ethutil.Big(ltx.GasPrice), ltx.Data)
-		tx.SetNonce(state.GetNonce(self.Coinbase))
-		state.SetNonce(self.Coinbase, tx.Nonce()+1)
-
-		tx.Sign(key.PrivateKey())
-
-		txs[i] = tx
-	}
+func (self *Miner) Stop() {
+	self.worker.stop()
+}
 
-	// Faster than append
-	for _, tx := range self.eth.TxPool().GetTransactions() {
-		if tx.GasPrice().Cmp(self.MinAcceptedGasPrice) >= 0 {
-			txs[actualSize] = tx
-			actualSize++
-		}
+func (self *Miner) HashRate() int64 {
+	var tot int64
+	for _, agent := range self.worker.agents {
+		tot += agent.Pow().GetHashrate()
 	}
 
-	newTransactions := make(types.Transactions, actualSize)
-	copy(newTransactions, txs[:actualSize])
-	sort.Sort(types.TxByNonce{newTransactions})
-
-	return newTransactions
+	return tot
 }