mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
123 lines
2.9 KiB
123 lines
2.9 KiB
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package miner
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"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 CpuAgent struct {
|
|
mu sync.Mutex
|
|
|
|
workCh chan *types.Block
|
|
quit chan struct{}
|
|
quitCurrentOp chan struct{}
|
|
returnCh chan<- *types.Block
|
|
|
|
index int
|
|
pow pow.PoW
|
|
}
|
|
|
|
func NewCpuAgent(index int, pow pow.PoW) *CpuAgent {
|
|
miner := &CpuAgent{
|
|
pow: pow,
|
|
index: index,
|
|
}
|
|
|
|
return miner
|
|
}
|
|
|
|
func (self *CpuAgent) Work() chan<- *types.Block { return self.workCh }
|
|
func (self *CpuAgent) Pow() pow.PoW { return self.pow }
|
|
func (self *CpuAgent) SetReturnCh(ch chan<- *types.Block) { self.returnCh = ch }
|
|
|
|
func (self *CpuAgent) Stop() {
|
|
self.mu.Lock()
|
|
defer self.mu.Unlock()
|
|
|
|
close(self.quit)
|
|
}
|
|
|
|
func (self *CpuAgent) Start() {
|
|
self.mu.Lock()
|
|
defer self.mu.Unlock()
|
|
|
|
self.quit = make(chan struct{})
|
|
// creating current op ch makes sure we're not closing a nil ch
|
|
// later on
|
|
self.workCh = make(chan *types.Block, 1)
|
|
|
|
go self.update()
|
|
}
|
|
|
|
func (self *CpuAgent) update() {
|
|
out:
|
|
for {
|
|
select {
|
|
case block := <-self.workCh:
|
|
self.mu.Lock()
|
|
if self.quitCurrentOp != nil {
|
|
close(self.quitCurrentOp)
|
|
}
|
|
self.quitCurrentOp = make(chan struct{})
|
|
go self.mine(block, self.quitCurrentOp)
|
|
self.mu.Unlock()
|
|
case <-self.quit:
|
|
self.mu.Lock()
|
|
if self.quitCurrentOp != nil {
|
|
close(self.quitCurrentOp)
|
|
self.quitCurrentOp = nil
|
|
}
|
|
self.mu.Unlock()
|
|
break out
|
|
}
|
|
}
|
|
|
|
done:
|
|
// Empty work channel
|
|
for {
|
|
select {
|
|
case <-self.workCh:
|
|
default:
|
|
close(self.workCh)
|
|
|
|
break done
|
|
}
|
|
}
|
|
}
|
|
|
|
func (self *CpuAgent) mine(block *types.Block, stop <-chan struct{}) {
|
|
glog.V(logger.Debug).Infof("(re)started agent[%d]. mining...\n", self.index)
|
|
|
|
// Mine
|
|
nonce, mixDigest := self.pow.Search(block, stop)
|
|
if nonce != 0 {
|
|
self.returnCh <- block.WithMiningResult(nonce, common.BytesToHash(mixDigest))
|
|
} else {
|
|
self.returnCh <- nil
|
|
}
|
|
}
|
|
|
|
func (self *CpuAgent) GetHashRate() int64 {
|
|
return self.pow.GetHashrate()
|
|
}
|
|
|