mirror of https://github.com/poanetwork/quorum.git
261 lines
6.2 KiB
Go
261 lines
6.2 KiB
Go
/*
|
|
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 (
|
|
"math/big"
|
|
"sort"
|
|
|
|
"github.com/ethereum/go-ethereum"
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/event"
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/wire"
|
|
)
|
|
|
|
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.Blocks
|
|
localTxs map[int]*LocalTx
|
|
localTxId int
|
|
|
|
pow core.PoW
|
|
quitCh chan struct{}
|
|
powQuitCh chan struct{}
|
|
|
|
Coinbase []byte
|
|
|
|
mining bool
|
|
|
|
MinAcceptedGasPrice *big.Int
|
|
}
|
|
|
|
func New(coinbase []byte, eth *eth.Ethereum) *Miner {
|
|
return &Miner{
|
|
eth: eth,
|
|
powQuitCh: make(chan struct{}),
|
|
pow: &core.EasyPow{},
|
|
mining: false,
|
|
localTxs: make(map[int]*LocalTx),
|
|
MinAcceptedGasPrice: big.NewInt(10000000000000),
|
|
Coinbase: coinbase,
|
|
}
|
|
}
|
|
|
|
func (self *Miner) GetPow() core.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
|
|
}
|
|
|
|
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)
|
|
}
|
|
self.eth.EventMux().Post(&LocalTx{})
|
|
|
|
delete(self.localTxs, id)
|
|
}
|
|
|
|
func (self *Miner) Start() {
|
|
if self.mining {
|
|
return
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
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() {
|
|
println("reset")
|
|
close(self.powQuitCh)
|
|
self.powQuitCh = make(chan struct{})
|
|
}
|
|
|
|
func (self *Miner) mine() {
|
|
var (
|
|
blockManager = self.eth.BlockManager()
|
|
chainMan = self.eth.ChainManager()
|
|
block = chainMan.NewBlock(self.Coinbase)
|
|
)
|
|
|
|
// Apply uncles
|
|
if len(self.uncles) > 0 {
|
|
block.SetUncles(self.uncles)
|
|
}
|
|
|
|
parent := chainMan.GetBlock(block.PrevHash)
|
|
coinbase := block.State().GetOrNewStateObject(block.Coinbase)
|
|
coinbase.SetGasPool(block.CalcGasLimit(parent))
|
|
|
|
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 := blockManager.ApplyTransactions(coinbase, block.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
|
|
blockManager.AccumelateRewards(block.State(), block, parent)
|
|
|
|
block.State().Update(ethutil.Big0)
|
|
|
|
minerlogger.Infof("Mining on block. Includes %v transactions", len(transactions))
|
|
|
|
// Find a valid nonce
|
|
nonce := self.pow.Search(block, self.powQuitCh)
|
|
if nonce != nil {
|
|
block.Nonce = nonce
|
|
err := chainMan.InsertChain(types.Blocks{block})
|
|
if err != nil {
|
|
minerlogger.Infoln(err)
|
|
} else {
|
|
self.eth.Broadcast(wire.MsgBlockTy, []interface{}{block.Value().Val})
|
|
|
|
minerlogger.Infof("🔨 Mined block %x\n", block.Hash())
|
|
minerlogger.Infoln(block)
|
|
}
|
|
|
|
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.BlockManager().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.Nonce = state.GetNonce(self.Coinbase)
|
|
state.SetNonce(self.Coinbase, tx.Nonce+1)
|
|
|
|
tx.Sign(key.PrivateKey())
|
|
|
|
txs[i] = tx
|
|
}
|
|
|
|
// Faster than append
|
|
for _, tx := range self.eth.TxPool().CurrentTransactions() {
|
|
if tx.GasPrice.Cmp(self.MinAcceptedGasPrice) >= 0 {
|
|
txs[actualSize] = tx
|
|
actualSize++
|
|
}
|
|
}
|
|
|
|
newTransactions := make(types.Transactions, actualSize)
|
|
copy(newTransactions, txs[:actualSize])
|
|
sort.Sort(types.TxByNonce{newTransactions})
|
|
|
|
return newTransactions
|
|
}
|