107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package miner
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import (
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"math/big"
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"github.com/ethereum/ethash"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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)
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type RemoteAgent struct {
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work *types.Block
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currentWork *types.Block
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quit chan struct{}
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workCh chan *types.Block
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returnCh chan<- *types.Block
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}
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func NewRemoteAgent() *RemoteAgent {
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agent := &RemoteAgent{}
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return agent
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}
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func (a *RemoteAgent) Work() chan<- *types.Block {
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return a.workCh
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}
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func (a *RemoteAgent) SetReturnCh(returnCh chan<- *types.Block) {
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a.returnCh = returnCh
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}
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func (a *RemoteAgent) Start() {
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a.quit = make(chan struct{})
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a.workCh = make(chan *types.Block, 1)
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go a.run()
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}
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func (a *RemoteAgent) Stop() {
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close(a.quit)
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close(a.workCh)
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}
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func (a *RemoteAgent) GetHashRate() int64 { return 0 }
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func (a *RemoteAgent) run() {
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out:
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for {
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select {
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case <-a.quit:
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break out
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case work := <-a.workCh:
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a.work = work
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}
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}
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}
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func (a *RemoteAgent) GetWork() [3]string {
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var res [3]string
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if a.work != nil {
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a.currentWork = a.work
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res[0] = a.work.HashNoNonce().Hex()
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seedHash, _ := ethash.GetSeedHash(a.currentWork.NumberU64())
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res[1] = common.BytesToHash(seedHash).Hex()
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// Calculate the "target" to be returned to the external miner
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n := big.NewInt(1)
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n.Lsh(n, 255)
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n.Div(n, a.work.Difficulty())
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n.Lsh(n, 1)
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res[2] = common.BytesToHash(n.Bytes()).Hex()
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}
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return res
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}
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func (a *RemoteAgent) SubmitWork(nonce uint64, mixDigest, seedHash common.Hash) bool {
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// Return true or false, but does not indicate if the PoW was correct
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// Make sure the external miner was working on the right hash
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if a.currentWork != nil && a.work != nil {
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a.returnCh <- a.currentWork.WithMiningResult(nonce, mixDigest)
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//a.returnCh <- Work{a.currentWork.Number().Uint64(), nonce, mixDigest.Bytes(), seedHash.Bytes()}
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return true
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}
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return false
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}
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