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Conditional mining using events

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This commit is contained in:
Dan Turner 2016-05-15 16:08:45 +10:00
parent fc0638f9d8
commit 45a259f105
1 changed files with 42 additions and 16 deletions
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26
miner/miner.go
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@ -49,6 +49,8 @@ type Miner struct {
canStart int32 // can start indicates whether we can start the mining operation
shouldStart int32 // should start indicates whether we should start after sync
sub event.Subscription
}
func New(eth core.Backend, config *core.ChainConfig, mux *event.TypeMux, pow pow.PoW) *Miner {
@ -100,6 +102,29 @@ func (m *Miner) SetGasPrice(price *big.Int) {
}
func (self *Miner) Start(coinbase common.Address, threads int) {
self.sub = self.mux.Subscribe(core.TxPreEvent{}, core.NewBlockEvent{}, core.NewMinedBlockEvent{})
go self.filterLoop(coinbase, threads)
}
func (self *Miner) filterLoop(coinbase common.Address, threads int) {
for event := range self.sub.Chan() {
switch event.Data.(type) {
case core.TxPreEvent:
glog.V(logger.Info).Infoln("New pending tranny yo, start mining!")
self.actuallyStart(coinbase, threads)
case core.NewBlockEvent:
glog.V(logger.Info).Infoln("New block event")
self.Stop()
self.Start(coinbase, threads)
case core.NewMinedBlockEvent:
glog.V(logger.Info).Infoln("New MINED block event")
self.Stop()
self.Start(coinbase, threads)
}
}
}
func (self *Miner) actuallyStart(coinbase common.Address, threads int) {
atomic.StoreInt32(&self.shouldStart, 1)
self.threads = threads
self.worker.coinbase = coinbase
@ -124,6 +149,7 @@ func (self *Miner) Start(coinbase common.Address, threads int) {
}
func (self *Miner) Stop() {
self.sub.Unsubscribe();
self.worker.stop()
atomic.StoreInt32(&self.mining, 0)
atomic.StoreInt32(&self.shouldStart, 0)