b1fdb9f38e
All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// go-ethereum 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 (
|
|
"math/big"
|
|
|
|
"github.com/ethereum/ethash"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
)
|
|
|
|
type RemoteAgent struct {
|
|
work *types.Block
|
|
currentWork *types.Block
|
|
|
|
quit chan struct{}
|
|
workCh chan *types.Block
|
|
returnCh chan<- *types.Block
|
|
}
|
|
|
|
func NewRemoteAgent() *RemoteAgent {
|
|
agent := &RemoteAgent{}
|
|
|
|
return agent
|
|
}
|
|
|
|
func (a *RemoteAgent) Work() chan<- *types.Block {
|
|
return a.workCh
|
|
}
|
|
|
|
func (a *RemoteAgent) SetReturnCh(returnCh chan<- *types.Block) {
|
|
a.returnCh = returnCh
|
|
}
|
|
|
|
func (a *RemoteAgent) Start() {
|
|
a.quit = make(chan struct{})
|
|
a.workCh = make(chan *types.Block, 1)
|
|
go a.run()
|
|
}
|
|
|
|
func (a *RemoteAgent) Stop() {
|
|
close(a.quit)
|
|
close(a.workCh)
|
|
}
|
|
|
|
func (a *RemoteAgent) GetHashRate() int64 { return 0 }
|
|
|
|
func (a *RemoteAgent) run() {
|
|
out:
|
|
for {
|
|
select {
|
|
case <-a.quit:
|
|
break out
|
|
case work := <-a.workCh:
|
|
a.work = work
|
|
}
|
|
}
|
|
}
|
|
|
|
func (a *RemoteAgent) GetWork() [3]string {
|
|
var res [3]string
|
|
|
|
if a.work != nil {
|
|
a.currentWork = a.work
|
|
|
|
res[0] = a.work.HashNoNonce().Hex()
|
|
seedHash, _ := ethash.GetSeedHash(a.currentWork.NumberU64())
|
|
res[1] = common.BytesToHash(seedHash).Hex()
|
|
// Calculate the "target" to be returned to the external miner
|
|
n := big.NewInt(1)
|
|
n.Lsh(n, 255)
|
|
n.Div(n, a.work.Difficulty())
|
|
n.Lsh(n, 1)
|
|
res[2] = common.BytesToHash(n.Bytes()).Hex()
|
|
}
|
|
|
|
return res
|
|
}
|
|
|
|
func (a *RemoteAgent) SubmitWork(nonce uint64, mixDigest, seedHash common.Hash) bool {
|
|
// Return true or false, but does not indicate if the PoW was correct
|
|
|
|
// Make sure the external miner was working on the right hash
|
|
if a.currentWork != nil && a.work != nil {
|
|
a.returnCh <- a.currentWork.WithMiningResult(nonce, mixDigest)
|
|
//a.returnCh <- Work{a.currentWork.Number().Uint64(), nonce, mixDigest.Bytes(), seedHash.Bytes()}
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|