path: root/miner/miner.go

package miner

import (
    "math/big"

    "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/logger"
    "github.com/ethereum/go-ethereum/logger/glog"
    "github.com/ethereum/go-ethereum/pow"
)

type Miner struct {
    worker *worker

    MinAcceptedGasPrice *big.Int

    threads int
    mining  bool
    eth     core.Backend
    pow     pow.PoW
}

func New(eth core.Backend, pow pow.PoW) *Miner {
    return &Miner{eth: eth, pow: pow, worker: newWorker(common.Address{}, eth)}
}

func (self *Miner) Mining() bool {
    return self.mining
}

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) {

    self.mining = true

    for i := 0; i < threads; i++ {
        self.worker.register(NewCpuAgent(i, self.pow))
    }
    self.threads = threads

    glog.V(logger.Info).Infof("Starting mining operation (CPU=%d TOT=%d)\n", threads, len(self.worker.agents))

    self.worker.coinbase = coinbase
    self.worker.start()
    self.worker.commitNewWork()
}

func (self *Miner) Stop() {
    self.worker.stop()
    self.mining = false
}

func (self *Miner) Register(agent Agent) {
    if self.mining {
        agent.Start()
    }

    self.worker.register(agent)
}

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()
}