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miner: move agent logic to worker (#17351) 

* miner: move agent logic to worker

* miner: polish

* core: persist block before reorg
This commit is contained in:
gary rong 2018-08-14 23:34:33 +08:00 committed by Péter Szilágyi
parent e0e0e53401
commit a1783d1697
5 changed files with 797 additions and 625 deletions
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7
core/blockchain.go
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@ -899,9 +899,7 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
if err := bc.hc.WriteTd(block.Hash(), block.NumberU64(), externTd); err != nil {
return NonStatTy, err
}
// Write other block data using a batch.
batch := bc.db.NewBatch()
rawdb.WriteBlock(batch, block)
rawdb.WriteBlock(bc.db, block)
root, err := state.Commit(bc.chainConfig.IsEIP158(block.Number()))
if err != nil {
@ -955,6 +953,9 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
}
}
}
// Write other block data using a batch.
batch := bc.db.NewBatch()
rawdb.WriteReceipts(batch, block.Hash(), block.NumberU64(), receipts)
// If the total difficulty is higher than our known, add it to the canonical chain

116
miner/agent.go
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@ -1,116 +0,0 @@
// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package miner
import (
"sync"
"sync/atomic"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/log"
)
type CpuAgent struct {
mu sync.Mutex
taskCh chan *Package
returnCh chan<- *Package
stop chan struct{}
quitCurrentOp chan struct{}
chain consensus.ChainReader
engine consensus.Engine
started int32 // started indicates whether the agent is currently started
}
func NewCpuAgent(chain consensus.ChainReader, engine consensus.Engine) *CpuAgent {
agent := &CpuAgent{
chain: chain,
engine: engine,
stop: make(chan struct{}, 1),
taskCh: make(chan *Package, 1),
}
return agent
}
func (self *CpuAgent) AssignTask(p *Package) {
if atomic.LoadInt32(&self.started) == 1 {
self.taskCh <- p
}
}
func (self *CpuAgent) DeliverTo(ch chan<- *Package) { self.returnCh = ch }
func (self *CpuAgent) Start() {
if !atomic.CompareAndSwapInt32(&self.started, 0, 1) {
return // agent already started
}
go self.update()
}
func (self *CpuAgent) Stop() {
if !atomic.CompareAndSwapInt32(&self.started, 1, 0) {
return // agent already stopped
}
self.stop <- struct{}{}
done:
// Empty work channel
for {
select {
case <-self.taskCh:
default:
break done
}
}
}
func (self *CpuAgent) update() {
out:
for {
select {
case p := <-self.taskCh:
self.mu.Lock()
if self.quitCurrentOp != nil {
close(self.quitCurrentOp)
}
self.quitCurrentOp = make(chan struct{})
go self.mine(p, self.quitCurrentOp)
self.mu.Unlock()
case <-self.stop:
self.mu.Lock()
if self.quitCurrentOp != nil {
close(self.quitCurrentOp)
self.quitCurrentOp = nil
}
self.mu.Unlock()
break out
}
}
}
func (self *CpuAgent) mine(p *Package, stop <-chan struct{}) {
var err error
if p.Block, err = self.engine.Seal(self.chain, p.Block, stop); p.Block != nil {
log.Info("Successfully sealed new block", "number", p.Block.Number(), "hash", p.Block.Hash())
self.returnCh <- p
} else {
if err != nil {
log.Warn("Block sealing failed", "err", err)
}
self.returnCh <- nil
}
}

34
miner/miner.go
View File

@ -21,14 +21,12 @@ import (
"fmt"
"sync/atomic"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
@ -36,10 +34,8 @@ import (
// Backend wraps all methods required for mining.
type Backend interface {
AccountManager() *accounts.Manager
BlockChain() *core.BlockChain
TxPool() *core.TxPool
ChainDb() ethdb.Database
}
// Miner creates blocks and searches for proof-of-work values.
@ -49,6 +45,7 @@ type Miner struct {
coinbase common.Address
eth Backend
engine consensus.Engine
exitCh chan struct{}
canStart int32 // can start indicates whether we can start the mining operation
shouldStart int32 // should start indicates whether we should start after sync
@ -59,10 +56,10 @@ func New(eth Backend, config *params.ChainConfig, mux *event.TypeMux, engine con
eth: eth,
mux: mux,
engine: engine,
exitCh: make(chan struct{}),
worker: newWorker(config, engine, eth, mux),
canStart: 1,
}
miner.Register(NewCpuAgent(eth.BlockChain(), engine))
go miner.update()
return miner
@ -74,8 +71,14 @@ func New(eth Backend, config *params.ChainConfig, mux *event.TypeMux, engine con
// and halt your mining operation for as long as the DOS continues.
func (self *Miner) update() {
events := self.mux.Subscribe(downloader.StartEvent{}, downloader.DoneEvent{}, downloader.FailedEvent{})
out:
for ev := range events.Chan() {
defer events.Unsubscribe()
for {
select {
case ev := <-events.Chan():
if ev == nil {
return
}
switch ev.Data.(type) {
case downloader.StartEvent:
atomic.StoreInt32(&self.canStart, 0)
@ -92,10 +95,11 @@ out:
if shouldStart {
self.Start(self.coinbase)
}
// unsubscribe. we're only interested in this event once
events.Unsubscribe()
// stop immediately and ignore all further pending events
break out
return
}
case <-self.exitCh:
return
}
}
}
@ -109,7 +113,6 @@ func (self *Miner) Start(coinbase common.Address) {
return
}
self.worker.start()
self.worker.commitNewWork()
}
func (self *Miner) Stop() {
@ -117,12 +120,9 @@ func (self *Miner) Stop() {
atomic.StoreInt32(&self.shouldStart, 0)
}
func (self *Miner) Register(agent Agent) {
self.worker.register(agent)
}
func (self *Miner) Unregister(agent Agent) {
self.worker.unregister(agent)
func (self *Miner) Close() {
self.worker.close()
close(self.exitCh)
}
func (self *Miner) Mining() bool {

1013
miner/worker.go
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File diff suppressed because it is too large Load Diff

212
miner/worker_test.go Normal file
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@ -0,0 +1,212 @@
// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package miner
import (
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
)
var (
// Test chain configurations
testTxPoolConfig core.TxPoolConfig
ethashChainConfig *params.ChainConfig
cliqueChainConfig *params.ChainConfig
// Test accounts
testBankKey, _ = crypto.GenerateKey()
testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
testBankFunds = big.NewInt(1000000000000000000)
acc1Key, _ = crypto.GenerateKey()
acc1Addr = crypto.PubkeyToAddress(acc1Key.PublicKey)
// Test transactions
pendingTxs []*types.Transaction
newTxs []*types.Transaction
)
func init() {
testTxPoolConfig = core.DefaultTxPoolConfig
testTxPoolConfig.Journal = ""
ethashChainConfig = params.TestChainConfig
cliqueChainConfig = params.TestChainConfig
cliqueChainConfig.Clique = &params.CliqueConfig{
Period: 1,
Epoch: 30000,
}
tx1, _ := types.SignTx(types.NewTransaction(0, acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), types.HomesteadSigner{}, testBankKey)
pendingTxs = append(pendingTxs, tx1)
tx2, _ := types.SignTx(types.NewTransaction(1, acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), types.HomesteadSigner{}, testBankKey)
newTxs = append(newTxs, tx2)
}
// testWorkerBackend implements worker.Backend interfaces and wraps all information needed during the testing.
type testWorkerBackend struct {
db ethdb.Database
txPool *core.TxPool
chain *core.BlockChain
testTxFeed event.Feed
}
func newTestWorkerBackend(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) *testWorkerBackend {
var (
db = ethdb.NewMemDatabase()
gspec = core.Genesis{
Config: chainConfig,
Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}},
}
)
switch engine.(type) {
case *clique.Clique:
gspec.ExtraData = make([]byte, 32+common.AddressLength+65)
copy(gspec.ExtraData[32:], testBankAddress[:])
case *ethash.Ethash:
default:
t.Fatal("unexpect consensus engine type")
}
gspec.MustCommit(db)
chain, _ := core.NewBlockChain(db, nil, gspec.Config, engine, vm.Config{})
txpool := core.NewTxPool(testTxPoolConfig, chainConfig, chain)
return &testWorkerBackend{
db: db,
chain: chain,
txPool: txpool,
}
}
func (b *testWorkerBackend) BlockChain() *core.BlockChain { return b.chain }
func (b *testWorkerBackend) TxPool() *core.TxPool { return b.txPool }
func (b *testWorkerBackend) PostChainEvents(events []interface{}) {
b.chain.PostChainEvents(events, nil)
}
func newTestWorker(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) (*worker, *testWorkerBackend) {
backend := newTestWorkerBackend(t, chainConfig, engine)
backend.txPool.AddLocals(pendingTxs)
w := newWorker(chainConfig, engine, backend, new(event.TypeMux))
w.setEtherbase(testBankAddress)
return w, backend
}
func TestPendingStateAndBlockEthash(t *testing.T) {
testPendingStateAndBlock(t, ethashChainConfig, ethash.NewFaker())
}
func TestPendingStateAndBlockClique(t *testing.T) {
testPendingStateAndBlock(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, ethdb.NewMemDatabase()))
}
func testPendingStateAndBlock(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) {
defer engine.Close()
w, b := newTestWorker(t, chainConfig, engine)
defer w.close()
// Ensure snapshot has been updated.
time.Sleep(100 * time.Millisecond)
block, state := w.pending()
if block.NumberU64() != 1 {
t.Errorf("block number mismatch, has %d, want %d", block.NumberU64(), 1)
}
if balance := state.GetBalance(acc1Addr); balance.Cmp(big.NewInt(1000)) != 0 {
t.Errorf("account balance mismatch, has %d, want %d", balance, 1000)
}
b.txPool.AddLocals(newTxs)
// Ensure the new tx events has been processed
time.Sleep(100 * time.Millisecond)
block, state = w.pending()
if balance := state.GetBalance(acc1Addr); balance.Cmp(big.NewInt(2000)) != 0 {
t.Errorf("account balance mismatch, has %d, want %d", balance, 2000)
}
}
func TestEmptyWorkEthash(t *testing.T) {
testEmptyWork(t, ethashChainConfig, ethash.NewFaker())
}
func TestEmptyWorkClique(t *testing.T) {
testEmptyWork(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, ethdb.NewMemDatabase()))
}
func testEmptyWork(t *testing.T, chainConfig *params.ChainConfig, engine consensus.Engine) {
defer engine.Close()
w, _ := newTestWorker(t, chainConfig, engine)
defer w.close()
var (
taskCh = make(chan struct{}, 2)
taskIndex int
)
checkEqual := func(t *testing.T, task *task, index int) {
receiptLen, balance := 0, big.NewInt(0)
if index == 1 {
receiptLen, balance = 1, big.NewInt(1000)
}
if len(task.receipts) != receiptLen {
t.Errorf("receipt number mismatch has %d, want %d", len(task.receipts), receiptLen)
}
if task.state.GetBalance(acc1Addr).Cmp(balance) != 0 {
t.Errorf("account balance mismatch has %d, want %d", task.state.GetBalance(acc1Addr), balance)
}
}
w.newTaskHook = func(task *task) {
if task.block.NumberU64() == 1 {
checkEqual(t, task, taskIndex)
taskIndex += 1
taskCh <- struct{}{}
}
}
w.fullTaskInterval = func() {
time.Sleep(100 * time.Millisecond)
}
// Ensure worker has finished initialization
for {
b := w.pendingBlock()
if b != nil && b.NumberU64() == 1 {
break
}
}
w.start()
for i := 0; i < 2; i += 1 {
to := time.NewTimer(time.Second)
select {
case <-taskCh:
case <-to.C:
t.Error("new task timeout")
}
}
}