mirror of https://github.com/status-im/op-geth.git
140 lines
3.6 KiB
Go
140 lines
3.6 KiB
Go
package miner
|
|
|
|
import (
|
|
"math/big"
|
|
"sync/atomic"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"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/event"
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/logger/glog"
|
|
"github.com/ethereum/go-ethereum/pow"
|
|
)
|
|
|
|
type Miner struct {
|
|
mux *event.TypeMux
|
|
|
|
worker *worker
|
|
|
|
MinAcceptedGasPrice *big.Int
|
|
|
|
threads int
|
|
coinbase common.Address
|
|
mining int32
|
|
eth core.Backend
|
|
pow pow.PoW
|
|
|
|
canStart int32 // can start indicates whether we can start the mining operation
|
|
shouldStart int32 // should start indicates whether we should start after sync
|
|
}
|
|
|
|
func New(eth core.Backend, mux *event.TypeMux, pow pow.PoW) *Miner {
|
|
miner := &Miner{eth: eth, mux: mux, pow: pow, worker: newWorker(common.Address{}, eth), canStart: 1}
|
|
go miner.update()
|
|
|
|
return miner
|
|
}
|
|
|
|
// update keeps track of the downloader events. Please be aware that this is a one shot type of update loop.
|
|
// It's entered once and as soon as `Done` or `Failed` has been broadcasted the events are unregistered and
|
|
// the loop is exited. This to prevent a major security vuln where external parties can DOS you with blocks
|
|
// 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() {
|
|
switch ev.(type) {
|
|
case downloader.StartEvent:
|
|
atomic.StoreInt32(&self.canStart, 0)
|
|
if self.Mining() {
|
|
self.Stop()
|
|
atomic.StoreInt32(&self.shouldStart, 1)
|
|
glog.V(logger.Info).Infoln("Mining operation aborted due to sync operation")
|
|
}
|
|
case downloader.DoneEvent, downloader.FailedEvent:
|
|
shouldStart := atomic.LoadInt32(&self.shouldStart) == 1
|
|
|
|
atomic.StoreInt32(&self.canStart, 1)
|
|
atomic.StoreInt32(&self.shouldStart, 0)
|
|
if shouldStart {
|
|
self.Start(self.coinbase, self.threads)
|
|
}
|
|
// unsubscribe. we're only interested in this event once
|
|
events.Unsubscribe()
|
|
// stop immediately and ignore all further pending events
|
|
break out
|
|
}
|
|
}
|
|
}
|
|
|
|
func (m *Miner) SetGasPrice(price *big.Int) {
|
|
// FIXME block tests set a nil gas price. Quick dirty fix
|
|
if price == nil {
|
|
return
|
|
}
|
|
|
|
m.worker.gasPrice = price
|
|
}
|
|
|
|
func (self *Miner) Start(coinbase common.Address, threads int) {
|
|
atomic.StoreInt32(&self.shouldStart, 1)
|
|
self.threads = threads
|
|
self.worker.coinbase = coinbase
|
|
self.coinbase = coinbase
|
|
|
|
if atomic.LoadInt32(&self.canStart) == 0 {
|
|
glog.V(logger.Info).Infoln("Can not start mining operation due to network sync (starts when finished)")
|
|
return
|
|
}
|
|
|
|
atomic.StoreInt32(&self.mining, 1)
|
|
|
|
for i := 0; i < threads; i++ {
|
|
self.worker.register(NewCpuAgent(i, self.pow))
|
|
}
|
|
|
|
glog.V(logger.Info).Infof("Starting mining operation (CPU=%d TOT=%d)\n", threads, len(self.worker.agents))
|
|
|
|
self.worker.start()
|
|
|
|
self.worker.commitNewWork()
|
|
}
|
|
|
|
func (self *Miner) Stop() {
|
|
self.worker.stop()
|
|
atomic.StoreInt32(&self.mining, 0)
|
|
atomic.StoreInt32(&self.shouldStart, 0)
|
|
}
|
|
|
|
func (self *Miner) Register(agent Agent) {
|
|
if self.Mining() {
|
|
agent.Start()
|
|
}
|
|
|
|
self.worker.register(agent)
|
|
}
|
|
|
|
func (self *Miner) Mining() bool {
|
|
return atomic.LoadInt32(&self.mining) > 0
|
|
}
|
|
|
|
func (self *Miner) HashRate() int64 {
|
|
return self.pow.GetHashrate()
|
|
}
|
|
|
|
func (self *Miner) SetExtra(extra []byte) {
|
|
self.worker.extra = extra
|
|
}
|
|
|
|
func (self *Miner) PendingState() *state.StateDB {
|
|
return self.worker.pendingState()
|
|
}
|
|
|
|
func (self *Miner) PendingBlock() *types.Block {
|
|
return self.worker.pendingBlock()
|
|
}
|