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worker.go
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worker.go
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// Copyright (c) 2018 The MATRIX Authors
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php
package miner
import (
"math/big"
"sync"
"sync/atomic"
"time"
"github.com/MatrixAINetwork/go-matrix/ca"
"github.com/MatrixAINetwork/go-matrix/common"
"github.com/MatrixAINetwork/go-matrix/consensus"
"github.com/MatrixAINetwork/go-matrix/core/state"
"github.com/MatrixAINetwork/go-matrix/core/types"
"github.com/MatrixAINetwork/go-matrix/event"
"github.com/MatrixAINetwork/go-matrix/log"
"github.com/MatrixAINetwork/go-matrix/mc"
"github.com/MatrixAINetwork/go-matrix/msgsend"
"github.com/MatrixAINetwork/go-matrix/params"
"github.com/MatrixAINetwork/go-matrix/params/manparams"
"gopkg.in/fatih/set.v0"
)
const (
resultQueueSize = 10
chainHeadChanSize = 10
)
// Agent can register themself with the worker
type Agent interface {
Work() chan<- *Work
SetReturnCh(chan<- *types.Header)
Stop()
Start()
GetHashRate() int64
}
// Work is the workers current environment and holds
// all of the current state information
type Work struct {
config *params.ChainConfig
signer types.Signer
state *state.StateDBManage // apply state changes here
ancestors *set.Set // ancestor set (used for checking uncle parent validity)
family *set.Set // family set (used for checking uncle invalidity)
uncles *set.Set // uncle set
tcount int // tx count in cycle
Block *types.Block // the new block
header *types.Header
txs []types.SelfTransaction
receipts []*types.Receipt
createdAt time.Time
threadNum int
isBroadcastNode bool
}
type Result struct {
Difficulty *big.Int
Header *types.Header
}
// worker is the main object which takes care of applying messages to the new state
type worker struct {
config *params.ChainConfig
bc ChainReader
mu sync.Mutex
// update loop
mux *event.TypeMux
agents map[Agent]struct{}
recv chan *types.Header
extra []byte
currentMu sync.Mutex
current *Work
// atomic status counters
mining int32
atWork int32
quitCh chan struct{}
roleUpdateCh chan *mc.RoleUpdatedMsg
roleUpdateSub event.Subscription
miningRequestCh chan *mc.HD_MiningReqMsg
miningRequestSub event.Subscription
localMiningRequestCh chan *mc.BlockGenor_BroadcastMiningReqMsg
localMiningRequestSub event.Subscription
mineReqCtrl *mineReqCtrl
hd *msgsend.HD
mineResultSender *common.ResendMsgCtrl
}
type ChainReader interface {
Config() *params.ChainConfig
Engine(version []byte) consensus.Engine
DPOSEngine(version []byte) consensus.DPOSEngine
VerifyHeader(header *types.Header) error
GetCurrentHash() common.Hash
GetGraphByHash(hash common.Hash) (*mc.TopologyGraph, *mc.ElectGraph, error)
GetBroadcastAccounts(blockHash common.Hash) ([]common.Address, error)
GetInnerMinerAccounts(blockHash common.Hash) ([]common.Address, error)
GetVersionSuperAccounts(blockHash common.Hash) ([]common.Address, error)
GetBlockSuperAccounts(blockHash common.Hash) ([]common.Address, error)
GetBroadcastIntervalByHash(blockHash common.Hash) (*mc.BCIntervalInfo, error)
GetA0AccountFromAnyAccount(account common.Address, blockHash common.Hash) (common.Address, common.Address, error)
CurrentHeader() *types.Header
// GetBlock retrieves a block from the database by hash and number.
GetBlock(hash common.Hash, number uint64) *types.Block
GetHeader(hash common.Hash, number uint64) *types.Header
// GetHeaderByNumber retrieves a block header from the database by number.
GetHeaderByNumber(number uint64) *types.Header
// GetHeaderByHash retrieves a block header from the database by its hash.
GetHeaderByHash(hash common.Hash) *types.Header
}
func newWorker(config *params.ChainConfig, bc ChainReader, mux *event.TypeMux, hd *msgsend.HD) (*worker, error) {
worker := &worker{
config: config,
bc: bc,
mux: mux,
agents: make(map[Agent]struct{}),
quitCh: make(chan struct{}),
miningRequestCh: make(chan *mc.HD_MiningReqMsg, 100),
roleUpdateCh: make(chan *mc.RoleUpdatedMsg, 100),
recv: make(chan *types.Header, resultQueueSize),
localMiningRequestCh: make(chan *mc.BlockGenor_BroadcastMiningReqMsg, 100),
mineReqCtrl: newMinReqCtrl(bc),
hd: hd,
mineResultSender: nil,
}
atomic.StoreInt32(&worker.mining, 0)
err := worker.init_SubscribeEvent()
if err != nil {
log.Error(ModuleMiner, "worker创建失败", err)
return nil, err
}
go worker.update()
go worker.wait()
log.INFO(ModuleMiner, "worker创建成功", err)
return worker, nil
}
func (self *worker) init_SubscribeEvent() error {
var err error
self.localMiningRequestSub, err = mc.SubscribeEvent(mc.HD_BroadcastMiningReq, self.localMiningRequestCh) //广播节点
if err != nil {
log.Error(ModuleMiner, "广播节点挖矿请求订阅失败", err)
return err
} else {
log.INFO(ModuleMiner, "广播节点挖矿请求订阅成功", "")
}
self.roleUpdateSub, err = mc.SubscribeEvent(mc.CA_RoleUpdated, self.roleUpdateCh) //身份到达
if err != nil {
log.Error(ModuleMiner, "身份更新订阅失败", err)
return err
} else {
log.INFO(ModuleMiner, "身份更新订阅成功", "")
}
self.miningRequestSub, err = mc.SubscribeEvent(mc.HD_MiningReq, self.miningRequestCh) //挖矿请求
if err != nil {
log.Error(ModuleMiner, "普通矿工挖矿请求订阅失败", err)
return err
} else {
log.INFO(ModuleMiner, "普通矿工挖矿请求订阅成功", err)
}
return nil
}
func (self *worker) Getmining() int32 { return atomic.LoadInt32(&self.mining) }
func (self *worker) update() {
defer func() {
if self.localMiningRequestSub != nil {
self.localMiningRequestSub.Unsubscribe()
}
if self.miningRequestSub != nil {
self.miningRequestSub.Unsubscribe()
}
if self.roleUpdateSub != nil {
self.roleUpdateSub.Unsubscribe()
}
self.StopAgent()
self.stopMineResultSender()
self.mineReqCtrl.Clear()
log.INFO("矿工节点退出成功")
}()
for {
select {
case roleData := <-self.roleUpdateCh:
self.RoleUpdatedMsgHandler(roleData)
case minerReqData := <-self.miningRequestCh:
self.MiningRequestHandle(minerReqData)
case data := <-self.localMiningRequestCh:
self.BroadcastHashLocalMiningReqMsgHandle(data.BlockMainData)
case <-self.localMiningRequestSub.Err():
return
case <-self.miningRequestSub.Err():
return
case <-self.roleUpdateSub.Err():
return
case <-self.quitCh:
return
}
}
}
func (self *worker) RoleUpdatedMsgHandler(data *mc.RoleUpdatedMsg) {
if data.SuperSeq > self.mineReqCtrl.curSuperSeq {
self.StopAgent()
self.stopMineResultSender()
self.mineReqCtrl.Clear()
self.mineReqCtrl.curSuperSeq = data.SuperSeq
}
if data.BlockNum+1 > self.mineReqCtrl.curNumber {
self.stopMineResultSender()
}
role := data.Role
self.mineReqCtrl.SetNewNumber(data.BlockNum+1, role)
canMining := self.mineReqCtrl.CanMining()
log.Trace(ModuleMiner, "高度", data.BlockNum, "角色", role, "是否可以挖矿", canMining)
if canMining {
self.StartAgent()
self.processMineReq()
} else {
self.StopAgent()
}
}
func (self *worker) MiningRequestHandle(data *mc.HD_MiningReqMsg) {
if nil == data || nil == data.Header {
log.ERROR(ModuleMiner, "挖矿请求Msg", "nil")
return
}
log.Trace(ModuleMiner, "请求高度", data.Header.Number)
reqData, err := self.mineReqCtrl.AddMineReq(data.Header, nil, false)
if err != nil {
log.ERROR(ModuleMiner, "缓存挖矿请求", err)
return
}
if reqData != nil {
self.processAppointedMineReq(reqData)
}
}
func (self *worker) BroadcastHashLocalMiningReqMsgHandle(req *mc.BlockData) {
if nil == req || nil == req.Header {
log.ERROR(ModuleMiner, "广播挖矿请求Msg", "nil")
return
}
log.Trace(ModuleMiner, "广播请求", req.Header.Number)
reqData, err := self.mineReqCtrl.AddMineReq(req.Header, req.Txs, true)
if err != nil {
log.ERROR(ModuleMiner, "缓存请求Err", err)
return
}
if reqData != nil {
self.processAppointedMineReq(reqData)
}
}
func (self *worker) Stop() {
close(self.quitCh)
}
func (self *worker) wait() {
for {
for header := range self.recv {
atomic.AddInt32(&self.atWork, -1)
if header == nil {
continue
}
self.foundHandle(header)
}
}
}
func (self *worker) foundHandle(header *types.Header) {
cache, err := self.mineReqCtrl.SetMiningResult(header)
if err != nil {
log.ERROR(ModuleMiner, "结果保存失败", err)
return
}
self.startMineResultSender(cache)
}
func (self *worker) setExtra(extra []byte) {
self.mu.Lock()
defer self.mu.Unlock()
self.extra = extra
}
func (self *worker) pending() (*types.Block, *state.StateDBManage) {
self.currentMu.Lock()
defer self.currentMu.Unlock()
tx, rx := types.GetCoinTXRS(self.current.txs, self.current.receipts)
cb := types.MakeCurencyBlock(tx, rx, nil)
if atomic.LoadInt32(&self.mining) == 0 {
return types.NewBlock(
self.current.header,
cb,
nil,
), self.current.state.Copy()
}
return self.current.Block, self.current.state.Copy()
}
func (self *worker) pendingBlock() *types.Block {
self.currentMu.Lock()
defer self.currentMu.Unlock()
if atomic.LoadInt32(&self.mining) == 0 {
tx, rx := types.GetCoinTXRS(self.current.txs, self.current.receipts)
cb := types.MakeCurencyBlock(tx, rx, nil)
return types.NewBlock(
self.current.header,
cb,
nil,
)
}
self.currentMu.Lock()
defer self.currentMu.Unlock()
return self.current.Block
}
func (self *worker) StartAgent() {
self.mu.Lock()
defer self.mu.Unlock()
atomic.StoreInt32(&self.mining, 1)
// spin up agents
for agent := range self.agents {
agent.Start()
}
}
func (self *worker) StopAgent() {
self.mu.Lock()
defer self.mu.Unlock()
if atomic.LoadInt32(&self.mining) != 0 {
for agent := range self.agents {
agent.Stop()
}
}
atomic.StoreInt32(&self.mining, 0)
atomic.StoreInt32(&self.atWork, 0)
}
func (self *worker) Register(agent Agent) {
self.mu.Lock()
defer self.mu.Unlock()
self.agents[agent] = struct{}{}
agent.SetReturnCh(self.recv)
}
func (self *worker) Unregister(agent Agent) {
self.mu.Lock()
defer self.mu.Unlock()
delete(self.agents, agent)
agent.Stop()
}
// push sends a new work task to currently live miner agents.
func (self *worker) push(work *Work) {
if atomic.LoadInt32(&self.mining) != 1 {
return
}
for agent := range self.agents {
atomic.AddInt32(&self.atWork, 1)
if ch := agent.Work(); ch != nil {
ch <- work
}
}
}
// makeCurrent creates a new environment for the current cycle.
func (self *worker) makeCurrent(header *types.Header, isBroadcastNode bool) error {
work := &Work{
header: types.CopyHeader(header),
isBroadcastNode: isBroadcastNode,
}
work.header.Coinbase = ca.GetDepositAddress()
self.current = work
return nil
}
func (self *worker) CommitNewWork(header *types.Header, isBroadcastNode bool) {
err := self.makeCurrent(header, isBroadcastNode)
if err != nil {
log.Error(ModuleMiner, "创建挖矿work失败", err)
return
}
log.INFO(ModuleMiner, "挖矿", "开始")
//// Create the current work task and check any fork transitions needed
work := self.current
self.push(work)
}
func (self *worker) processAppointedMineReq(reqData *mineReqData) {
if nil == reqData {
return
}
if self.mineReqCtrl.CanMining() == false {
return
}
if reqData.mined {
log.Trace(ModuleMiner, "请求已完成,直接发送结果", reqData.headerHash.TerminalString())
self.sendMineResultFunc(reqData, 0)
} else {
log.Trace(ModuleMiner, "接收请求,开始处理", reqData.headerHash.TerminalString())
self.beginMine(reqData)
}
}
func (self *worker) processMineReq() {
reqData := self.mineReqCtrl.GetUnMinedReq()
if reqData == nil {
return
}
log.Trace(ModuleMiner, "开始挖矿", reqData.headerHash.TerminalString())
self.beginMine(reqData)
}
func (self *worker) beginMine(reqData *mineReqData) {
if nil == reqData {
return
}
if atomic.LoadInt32(&self.mining) == 0 {
return
}
if curMineReq := self.mineReqCtrl.GetCurrentMineReq(); curMineReq != nil {
if curMineReq.mined == false && curMineReq.header.Time.Cmp(reqData.header.Time) >= 0 {
log.DEBUG(ModuleMiner, "beginMine", "当前挖矿时间较大,不处理本次挖矿",
"当前挖矿header时间", curMineReq.header.Time, "请求挖矿header时间", reqData.header.Time)
return
}
}
if err := self.mineReqCtrl.SetCurrentMineReq(reqData.headerHash); err != nil {
log.ERROR(ModuleMiner, "保存挖矿请求:", err)
return
}
self.CommitNewWork(reqData.header, reqData.isBroadcastReq)
}
func (self *worker) startMineResultSender(data *mineReqData) {
self.stopMineResultSender()
sender, err := common.NewResendMsgCtrl(data, self.sendMineResultFunc, manparams.MinerResultSendInterval, 0)
if err != nil {
log.ERROR(ModuleMiner, "创建挖矿结果发送器", "失败", "err", err)
return
}
log.Trace(ModuleMiner, "创建挖矿结果发送器", "成功", "高度", data.header.Number.Uint64(), "hash", data.headerHash.TerminalString())
self.mineResultSender = sender
}
func (self *worker) stopMineResultSender() {
if self.mineResultSender == nil {
return
}
self.mineResultSender.Close()
self.mineResultSender = nil
log.Trace(ModuleMiner, "挖矿结果发送器", "停止")
}
func (self *worker) sendMineResultFunc(data interface{}, times uint32) {
resultData, OK := data.(*mineReqData)
if !OK {
log.ERROR(ModuleMiner, "发出挖矿结果", "反射消息失败", "次数", times)
return
}
if nil == resultData || nil == resultData.header || resultData.mined == false {
log.ERROR(ModuleMiner, "发出挖矿结果", "入参错误", "次数", times)
return
}
if err := resultData.ResendMineResult(time.Now().Unix()); err != nil {
log.ERROR(ModuleMiner, "发出挖矿结果", "发送挖矿结果失败", "原因", err, "次数", times)
return
}
if resultData.isBroadcastReq {
rsp := &mc.HD_BroadcastMiningRspMsg{
BlockMainData: &mc.BlockData{
Header: resultData.header,
Txs: resultData.txs,
},
}
log.Trace(ModuleMiner, "广播挖矿结果", "发送", "交易数量", len(types.GetTX(rsp.BlockMainData.Txs)), "次数", times, "高度", rsp.BlockMainData.Header.Number)
self.hd.SendNodeMsg(mc.HD_BroadcastMiningRsp, rsp, common.RoleValidator, nil)
} else {
rsp := &mc.HD_MiningRspMsg{
BlockHash: resultData.headerHash,
Difficulty: resultData.mineDiff,
Number: resultData.header.Number.Uint64(),
Nonce: resultData.header.Nonce,
Coinbase: resultData.header.Coinbase,
MixDigest: resultData.header.MixDigest,
Signatures: resultData.header.Signatures}
self.hd.SendNodeMsg(mc.HD_MiningRsp, rsp, common.RoleValidator|common.RoleBroadcast, nil)
log.Trace(ModuleMiner, "挖矿结果", "发送", "hash", rsp.BlockHash.TerminalString(), "次数", times, "高度", rsp.Number, "Nonce", rsp.Nonce)
}
}