mirror of https://github.com/poanetwork/quorum.git
Merge pull request #3431 from karalabe/miner-race-fixes
Miner race fixes
This commit is contained in:
commit
f15828e901
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@ -119,15 +119,14 @@ func (m *Miner) SetGasPrice(price *big.Int) {
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func (self *Miner) Start(coinbase common.Address, threads int) {
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atomic.StoreInt32(&self.shouldStart, 1)
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self.threads = threads
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self.worker.coinbase = coinbase
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self.worker.setEtherbase(coinbase)
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self.coinbase = coinbase
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self.threads = threads
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if atomic.LoadInt32(&self.canStart) == 0 {
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glog.V(logger.Info).Infoln("Can not start mining operation due to network sync (starts when finished)")
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return
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}
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atomic.StoreInt32(&self.mining, 1)
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for i := 0; i < threads; i++ {
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@ -135,9 +134,7 @@ func (self *Miner) Start(coinbase common.Address, threads int) {
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}
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glog.V(logger.Info).Infof("Starting mining operation (CPU=%d TOT=%d)\n", threads, len(self.worker.agents))
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self.worker.start()
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self.worker.commitNewWork()
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}
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@ -177,8 +174,7 @@ func (self *Miner) SetExtra(extra []byte) error {
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if uint64(len(extra)) > params.MaximumExtraDataSize.Uint64() {
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return fmt.Errorf("Extra exceeds max length. %d > %v", len(extra), params.MaximumExtraDataSize)
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}
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self.worker.extra = extra
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self.worker.setExtra(extra)
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return nil
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}
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@ -188,9 +184,9 @@ func (self *Miner) Pending() (*types.Block, *state.StateDB) {
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}
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// PendingBlock returns the currently pending block.
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//
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// Note, to access both the pending block and the pending state
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// simultaneously, please use Pending(), as the pending state can
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//
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// Note, to access both the pending block and the pending state
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// simultaneously, please use Pending(), as the pending state can
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// change between multiple method calls
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func (self *Miner) PendingBlock() *types.Block {
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return self.worker.pendingBlock()
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@ -37,7 +37,7 @@ type hashrate struct {
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type RemoteAgent struct {
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mu sync.Mutex
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quit chan struct{}
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quitCh chan struct{}
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workCh chan *Work
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returnCh chan<- *Result
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@ -76,18 +76,16 @@ func (a *RemoteAgent) Start() {
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if !atomic.CompareAndSwapInt32(&a.running, 0, 1) {
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return
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}
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a.quit = make(chan struct{})
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a.quitCh = make(chan struct{})
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a.workCh = make(chan *Work, 1)
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go a.maintainLoop()
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go a.loop(a.workCh, a.quitCh)
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}
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func (a *RemoteAgent) Stop() {
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if !atomic.CompareAndSwapInt32(&a.running, 1, 0) {
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return
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}
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close(a.quit)
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close(a.quitCh)
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close(a.workCh)
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}
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@ -148,15 +146,20 @@ func (a *RemoteAgent) SubmitWork(nonce uint64, mixDigest, hash common.Hash) bool
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return false
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}
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func (a *RemoteAgent) maintainLoop() {
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// loop monitors mining events on the work and quit channels, updating the internal
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// state of the rmeote miner until a termination is requested.
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//
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// Note, the reason the work and quit channels are passed as parameters is because
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// RemoteAgent.Start() constantly recreates these channels, so the loop code cannot
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// assume data stability in these member fields.
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func (a *RemoteAgent) loop(workCh chan *Work, quitCh chan struct{}) {
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ticker := time.Tick(5 * time.Second)
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out:
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for {
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select {
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case <-a.quit:
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break out
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case work := <-a.workCh:
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case <-quitCh:
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return
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case work := <-workCh:
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a.mu.Lock()
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a.currentWork = work
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a.mu.Unlock()
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@ -161,6 +161,12 @@ func (self *worker) setEtherbase(addr common.Address) {
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self.coinbase = addr
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}
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func (self *worker) setExtra(extra []byte) {
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self.mu.Lock()
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defer self.mu.Unlock()
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self.extra = extra
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}
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func (self *worker) pending() (*types.Block, *state.StateDB) {
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self.currentMu.Lock()
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defer self.currentMu.Unlock()
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