Basic structure miner
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obscuren
284
miner/miner.go
284
miner/miner.go
@ -1,291 +1,67 @@
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/*
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This file is part of go-ethereum
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go-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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go-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @authors
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* Jeffrey Wilcke <i@jev.io>
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* @date 2014
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*
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*/
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package miner
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import (
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"fmt"
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"math/big"
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"sort"
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"github.com/ethereum/c-ethash/go-ethash"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/pow"
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"github.com/ethereum/go-ethereum/state"
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"github.com/ethereum/go-ethereum/pow/ezp"
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)
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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}
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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}
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const epochLen = uint64(1000)
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func getSeed(chainMan *core.ChainManager, block *types.Block) (x []byte, y []byte) {
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if block.Number().Uint64() == 0 {
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return dx, dy
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} else if block.Number().Uint64()%epochLen == 0 {
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x, y = getSeed(chainMan, chainMan.GetBlock(block.ParentHash()))
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if (block.Number().Uint64()/epochLen)%2 > 0 {
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y = crypto.Sha3(append(y, block.ParentHash()...))
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} else {
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x = crypto.Sha3(append(x, block.ParentHash()...))
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}
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return x, y
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} else {
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return getSeed(chainMan, chainMan.GetBlock(block.ParentHash()))
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}
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}
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type LocalTx struct {
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To []byte `json:"to"`
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Data []byte `json:"data"`
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Gas string `json:"gas"`
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GasPrice string `json:"gasPrice"`
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Value string `json:"value"`
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}
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func (self *LocalTx) Sign(key []byte) *types.Transaction {
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return nil
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}
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var minerlogger = logger.NewLogger("MINER")
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type Miner struct {
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eth *eth.Ethereum
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events event.Subscription
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uncles []*types.Header
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localTxs map[int]*LocalTx
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localTxId int
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pow pow.PoW
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quitCh chan struct{}
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powQuitCh chan struct{}
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Coinbase []byte
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mining bool
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worker *worker
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MinAcceptedGasPrice *big.Int
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Extra string
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coinbase []byte
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mining bool
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}
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func New(coinbase []byte, eth *eth.Ethereum) *Miner {
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return &Miner{
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eth: eth,
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powQuitCh: make(chan struct{}),
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mining: false,
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localTxs: make(map[int]*LocalTx),
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MinAcceptedGasPrice: big.NewInt(10000000000000),
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Coinbase: coinbase,
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}
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}
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func (self *Miner) GetPow() pow.PoW {
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return self.pow
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}
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func (self *Miner) AddLocalTx(tx *LocalTx) int {
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minerlogger.Infof("Added local tx (%x %v / %v)\n", tx.To[0:4], tx.GasPrice, tx.Value)
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self.localTxId++
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self.localTxs[self.localTxId] = tx
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self.eth.EventMux().Post(tx)
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return self.localTxId
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}
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func (self *Miner) RemoveLocalTx(id int) {
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if tx := self.localTxs[id]; tx != nil {
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minerlogger.Infof("Removed local tx (%x %v / %v)\n", tx.To[0:4], tx.GasPrice, tx.Value)
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}
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self.eth.EventMux().Post(&LocalTx{})
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delete(self.localTxs, id)
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}
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func (self *Miner) Start() {
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if self.mining {
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return
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miner := &Miner{
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coinbase: coinbase,
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worker: newWorker(coinbase, eth),
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}
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minerlogger.Infoln("Starting mining operations")
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self.mining = true
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self.quitCh = make(chan struct{})
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self.powQuitCh = make(chan struct{})
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mux := self.eth.EventMux()
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self.events = mux.Subscribe(core.NewBlockEvent{}, core.TxPreEvent{}, &LocalTx{})
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go self.update()
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go self.mine()
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}
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func (self *Miner) Stop() {
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if !self.mining {
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return
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for i := 0; i < 4; i++ {
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miner.worker.register(NewCpuMiner(i, ezp.New()))
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}
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self.mining = false
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minerlogger.Infoln("Stopping mining operations")
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self.events.Unsubscribe()
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close(self.quitCh)
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close(self.powQuitCh)
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return miner
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}
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func (self *Miner) Mining() bool {
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return self.mining
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}
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func (self *Miner) update() {
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out:
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for {
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select {
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case event := <-self.events.Chan():
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switch event := event.(type) {
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case core.NewBlockEvent:
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block := event.Block
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if self.eth.ChainManager().HasBlock(block.Hash()) {
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self.reset()
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self.eth.TxPool().RemoveSet(block.Transactions())
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go self.mine()
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} else if true {
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// do uncle stuff
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}
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case core.TxPreEvent, *LocalTx:
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self.reset()
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go self.mine()
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func (self *Miner) Start() {
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self.worker.start()
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self.worker.commitNewWork()
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/*
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timer := time.NewTicker(time.Second)
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for {
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select {
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case <-timer.C:
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fmt.Printf("%d workers. %d/Khash\n", len(self.worker.agents), self.HashRate())
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}
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case <-self.quitCh:
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break out
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}
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}
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*/
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}
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func (self *Miner) reset() {
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close(self.powQuitCh)
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self.powQuitCh = make(chan struct{})
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func (self *Miner) Stop() {
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self.worker.stop()
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}
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func (self *Miner) mine() {
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var (
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blockProcessor = self.eth.BlockProcessor()
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chainMan = self.eth.ChainManager()
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block = chainMan.NewBlock(self.Coinbase)
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state = state.New(block.Root(), self.eth.Db())
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)
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block.Header().Extra = self.Extra
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// Apply uncles
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block.SetUncles(self.uncles)
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parent := chainMan.GetBlock(block.ParentHash())
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coinbase := state.GetOrNewStateObject(block.Coinbase())
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coinbase.SetGasPool(core.CalcGasLimit(parent, block))
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transactions := self.finiliseTxs()
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// Accumulate all valid transactions and apply them to the new state
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// Error may be ignored. It's not important during mining
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receipts, txs, _, erroneous, err := blockProcessor.ApplyTransactions(coinbase, state, block, transactions, true)
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if err != nil {
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minerlogger.Debugln(err)
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}
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self.eth.TxPool().RemoveSet(erroneous)
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block.SetTransactions(txs)
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block.SetReceipts(receipts)
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// Accumulate the rewards included for this block
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blockProcessor.AccumulateRewards(state, block, parent)
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state.Update(ethutil.Big0)
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block.SetRoot(state.Root())
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minerlogger.Infof("Mining on block. Includes %v transactions", len(transactions))
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x, _ := getSeed(chainMan, block)
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self.pow, err = ethash.New(x, block)
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if err != nil {
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fmt.Println("miner gave back err", err)
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return
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func (self *Miner) HashRate() int64 {
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var tot int64
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for _, agent := range self.worker.agents {
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tot += agent.Pow().GetHashrate()
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}
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// Find a valid nonce
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nonce := self.pow.Search(block, self.powQuitCh)
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if nonce != nil {
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block.Header().Nonce = nonce
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err := chainMan.InsertChain(types.Blocks{block})
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if err != nil {
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minerlogger.Infoln(err)
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} else {
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self.eth.EventMux().Post(core.NewMinedBlockEvent{block})
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minerlogger.Infof("🔨 Mined block %x\n", block.Hash())
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minerlogger.Infoln(block)
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}
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go self.mine()
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}
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}
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func (self *Miner) finiliseTxs() types.Transactions {
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// Sort the transactions by nonce in case of odd network propagation
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actualSize := len(self.localTxs) // See copy below
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txs := make(types.Transactions, actualSize+self.eth.TxPool().Size())
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state := self.eth.ChainManager().TransState()
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// XXX This has to change. Coinbase is, for new, same as key.
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key := self.eth.KeyManager()
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for i, ltx := range self.localTxs {
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tx := types.NewTransactionMessage(ltx.To, ethutil.Big(ltx.Value), ethutil.Big(ltx.Gas), ethutil.Big(ltx.GasPrice), ltx.Data)
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tx.SetNonce(state.GetNonce(self.Coinbase))
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state.SetNonce(self.Coinbase, tx.Nonce()+1)
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tx.Sign(key.PrivateKey())
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txs[i] = tx
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}
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// Faster than append
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for _, tx := range self.eth.TxPool().GetTransactions() {
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if tx.GasPrice().Cmp(self.MinAcceptedGasPrice) >= 0 {
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txs[actualSize] = tx
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actualSize++
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}
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}
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newTransactions := make(types.Transactions, actualSize)
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copy(newTransactions, txs[:actualSize])
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sort.Sort(types.TxByNonce{newTransactions})
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return newTransactions
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return tot
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}
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