mirror of https://github.com/ethereum/go-ethereum
obscuren
10 years ago
parent
b22f0f2ef5
commit
da2fae0e43
@ -0,0 +1,74 @@ |
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package miner |
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import ( |
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"github.com/ethereum/go-ethereum/core/types" |
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"github.com/ethereum/go-ethereum/pow" |
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) |
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type CpuMiner struct { |
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c chan *types.Block |
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quit chan struct{} |
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quitCurrentOp chan struct{} |
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returnCh chan<- []byte |
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index int |
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pow pow.PoW |
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} |
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func NewCpuMiner(index int, pow pow.PoW) *CpuMiner { |
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miner := &CpuMiner{ |
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c: make(chan *types.Block, 1), |
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quit: make(chan struct{}), |
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quitCurrentOp: make(chan struct{}, 1), |
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pow: pow, |
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index: index, |
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} |
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go miner.update() |
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return miner |
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} |
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func (self *CpuMiner) Work() chan<- *types.Block { return self.c } |
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func (self *CpuMiner) Pow() pow.PoW { return self.pow } |
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func (self *CpuMiner) SetNonceCh(ch chan<- []byte) { self.returnCh = ch } |
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func (self *CpuMiner) Stop() { |
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close(self.quit) |
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close(self.quitCurrentOp) |
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} |
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func (self *CpuMiner) update() { |
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out: |
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for { |
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select { |
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case block := <-self.c: |
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minerlogger.Infof("miner[%d] got block\n", self.index) |
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// make sure it's open
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self.quitCurrentOp <- struct{}{} |
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go self.mine(block) |
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case <-self.quit: |
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break out |
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} |
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} |
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done: |
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// Empty channel
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for { |
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select { |
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case <-self.c: |
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default: |
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close(self.c) |
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break done |
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} |
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} |
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} |
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func (self *CpuMiner) mine(block *types.Block) { |
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minerlogger.Infof("started agent[%d]. mining...\n", self.index) |
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nonce := self.pow.Search(block, self.quitCurrentOp) |
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if nonce != nil { |
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self.returnCh <- nonce |
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} |
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} |
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@ -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 |
package miner |
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import ( |
import ( |
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"fmt" |
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"math/big" |
"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" |
"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" |
"github.com/ethereum/go-ethereum/logger" |
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"github.com/ethereum/go-ethereum/pow" |
"github.com/ethereum/go-ethereum/pow/ezp" |
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"github.com/ethereum/go-ethereum/state" |
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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") |
var minerlogger = logger.NewLogger("MINER") |
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type Miner struct { |
type Miner struct { |
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eth *eth.Ethereum |
worker *worker |
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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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MinAcceptedGasPrice *big.Int |
MinAcceptedGasPrice *big.Int |
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Extra string |
Extra string |
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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 |
coinbase []byte |
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mining bool |
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} |
} |
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func (self *Miner) RemoveLocalTx(id int) { |
func New(coinbase []byte, eth *eth.Ethereum) *Miner { |
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if tx := self.localTxs[id]; tx != nil { |
miner := &Miner{ |
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minerlogger.Infof("Removed local tx (%x %v / %v)\n", tx.To[0:4], tx.GasPrice, tx.Value) |
coinbase: coinbase, |
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worker: newWorker(coinbase, eth), |
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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() { |
for i := 0; i < 4; i++ { |
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if self.mining { |
miner.worker.register(NewCpuMiner(i, ezp.New())) |
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return |
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} |
} |
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minerlogger.Infoln("Starting mining operations") |
return miner |
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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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} |
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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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} |
} |
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func (self *Miner) Mining() bool { |
func (self *Miner) Mining() bool { |
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return self.mining |
return self.mining |
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} |
} |
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func (self *Miner) update() { |
func (self *Miner) Start() { |
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out: |
self.worker.start() |
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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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} |
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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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func (self *Miner) reset() { |
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close(self.powQuitCh) |
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self.powQuitCh = make(chan struct{}) |
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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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} |
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// Find a valid nonce
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self.worker.commitNewWork() |
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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) |
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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} |
} |
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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 { |
func (self *Miner) Stop() { |
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// Sort the transactions by nonce in case of odd network propagation
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self.worker.stop() |
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actualSize := len(self.localTxs) // See copy below
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} |
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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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func (self *Miner) HashRate() int64 { |
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for _, tx := range self.eth.TxPool().GetTransactions() { |
var tot int64 |
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if tx.GasPrice().Cmp(self.MinAcceptedGasPrice) >= 0 { |
for _, agent := range self.worker.agents { |
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txs[actualSize] = tx |
tot += agent.Pow().GetHashrate() |
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actualSize++ |
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} |
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} |
} |
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newTransactions := make(types.Transactions, actualSize) |
return tot |
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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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} |
} |
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