path: root/miner/miner.go

package miner

import (
    "math/big"

    "github.com/ethereum/ethash"
    "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/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, minerThreads int) *Miner {
    // note: minerThreads is currently ignored because
    // ethash is not thread safe.
    miner := &Miner{eth: eth, pow: pow, worker: newWorker(common.Address{}, eth)}
    for i := 0; i < minerThreads; i++ {
        miner.worker.register(NewCpuMiner(i, pow))
    }
    miner.threads = minerThreads

    return miner
}

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

func (self *Miner) Start(coinbase common.Address) {
    self.mining = true
    self.worker.coinbase = coinbase

    if self.threads > 0 {
        self.pow.(*ethash.Ethash).UpdateDAG()
    }

    self.worker.start()

    self.worker.commitNewWork()
}

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

    self.worker.register(agent)
}

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

func (self *Miner) HashRate() int64 {
    return self.worker.HashRate()
}

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()
}