m2pool-core/internal/server/monero/monero.go

package monero

import (
	"crypto/rand"
	"strings"

	//"database/sql"

	"encoding/hex"
	"encoding/json"

	//"log"
	//"math"
	"math/big"
	//"strings"

	"fmt"
	"pool/internal/msg"
	"pool/internal/server/coin"
	"pool/internal/server/dbif"
	"pool/internal/stratum"
	"pool/internal/utility"
	"time"

	_ "github.com/mattn/go-sqlite3"

	"go.uber.org/zap"
)

const SERVER_MONERO_VERSION string = "monero v0.1a"

type ServerMoneroContext struct {
	ServerCtx *coin.ServerContext
	logg      *zap.Logger

	Sha3xJob msg.Sha3xStratumJob

	RandomxVM *RandomXValidator
}

var logg *zap.Logger
var ServerMoneroCtx ServerMoneroContext

type MoneroNotify_params_msg struct {
	Id           string `json:"id"`
	JobId        string `json:"job_id"`
	SeedHash     string `json:"seed_hash"`
	Blob         string `json:"blob"`
	Height       uint32 `json:"height"`
	Target       string `json:"target"`
	NextSeedHash string `json:"next_seed_hash"`
	Algo         string `json:"algo"`
}

type Monero_msg struct {
	Jsonrpc string                  `json:"jsonrpc"`
	Method  string                  `json:"method"`
	Params  MoneroNotify_params_msg `json:"params"`
}

// 辅助函数：反转每个字节的小端 hex
func reverseHexBytes(s string) string {
	if len(s)%2 != 0 {
		s = "0" + s
	}
	res := ""
	for i := len(s); i > 0; i -= 2 {
		res += s[i-2 : i]
	}
	return res
}

func calc_target(diff uint64) string {
	difficulty := new(big.Int)
	difficulty.SetString(fmt.Sprintf("%d", diff), 10)

	// 2^256 - 1
	max := new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(1))

	// target = (2^256 - 1) / difficulty
	target := new(big.Int).Div(max, difficulty)

	// 转为32字节 hex（大端）
	targetHexBE := fmt.Sprintf("%064x", target)
	return targetHexBE
}

func calc_diff(hash string) uint64 {
	be := reverseHexBytes(hash)
	target_be := new(big.Int)
	target_be.SetString(be, 16)

	max := new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(1))
	difficulty := new(big.Rat).SetFrac(max, target_be)
	// Convert *big.Rat to *big.Float, then to uint64
	diffFloat := new(big.Float).SetRat(difficulty)
	result, _ := diffFloat.Uint64()
	return result
}

func handle_submit(miner *coin.MinerObj, id float64, miner_user string, job_id string, nonce2 string, ntime string, nonce string) (bool, bool, bool) {
	var submit_item coin.BlockMsg
	/*var user_blk_item coin.UserBlockMsg*/
	var pool_blk_item coin.PoolBlkMsg

	var blk_detail_height int64
	var blk_detail_hash string
	var blk_detail_success bool
	var blk_detail_miner_diff float64
	var blk_detail_pool_diff float64

	if miner.Authorized != true {
		miner.ErrOthers = miner.ErrOthers + 1
		stratum.Handle_exception(miner, id, stratum.MINER_ERR_UNAUTH_WORKER)
		stratum.Send_reconnect_msg(miner)
		return false, false, false
	}
	var new_found bool = false
	var ack stratum.Submit_ack
	ack.ID = id
	ack.Result = true
	// fmt.Println("提交job_id:", job_id)
	var keys []string
	miner.Jobs.Range(func(k, v interface{}) bool {
		if key, ok := k.(string); ok {
			keys = append(keys, key)
		}
		return true // 继续遍历
	})

	// fmt.Println("目前任务所有key:", keys)
	v, ok := miner.Jobs.Load(job_id)
	if ok {
		job := v.(msg.MoneroStratumJob)

		if uint32(job.Height) < miner.CurHeight-1 {
			ack.Result = false
			stratum.Handle_exception(miner, id, stratum.MINER_ERR_STALED_JOB)
			miner.ErrStaleds = miner.ErrStaleds + 1
			return false, false, false
		}

		if (miner.LastNonce != nonce) || (miner.MoneroJob.BlocktemplateBlob != job.BlocktemplateBlob) {
			miner.MoneroJob.BlocktemplateBlob = job.BlocktemplateBlob
			miner.LastNonce = nonce
			job.Nonce = nonce

			if miner.ZlogInit {
				miner.Zlog.Info().Msg("height " + string(job.Height) + " target " + job.Target + " " + miner.User + "." + miner.Miner)
			}

			var calc_hash []byte
			var completeHeader []byte
			nonceByte, err := hex.DecodeString(nonce)
			if err != nil {
				fmt.Println(err)
				return false, false, false
			}
			headerByte, err := hex.DecodeString(job.BlockhashingBlob)
			if err != nil {
				fmt.Println(err)
				return false, false, false
			}

			calc_hash, completeHeader, err = ServerMoneroCtx.RandomxVM.BuildPowHash(headerByte, nonceByte)
			if err != nil {
				fmt.Println("calc_hash error:", err)
				return false, false, false
			}
			job.CompleteHeader = completeHeader
			if miner.ZlogInit {
				miner.Zlog.Info().Msg("hash in " + submit_item.Header + " calc_hash " + hex.EncodeToString(calc_hash) + " " + miner.User + "." + miner.Miner)
			}
			submit_target := new(big.Int)

			submit_target.SetBytes(calc_hash)

			calc_diff := utility.MoneroTarget2Diff(calc_hash)

			if miner.ZlogInit {
				miner.Zlog.Info().Msg(miner.User + "." + miner.Miner + " target diff " + fmt.Sprintf("%f", (miner.Difficulty)) + " submit diff " + fmt.Sprintf("%f", (calc_diff)))
			}

			if calc_diff < float64(job.Difficulty) {
				ack.Result = false
				miner.ErrLowDiffs = miner.ErrLowDiffs + 1
				stratum.Handle_exception(miner, id, stratum.MINER_ERR_LOW_DIF_SHARE)
				return false, false, false

			}

			stb, _ := hex.DecodeString(job.Target)

			server_diff := utility.MoneroTarget2Diff(utility.Reverse(stb))
			network_target := new(big.Int)
			network_target.SetBytes(stb)

			if miner.ZlogInit {
				miner.Zlog.Info().Msg(miner.User + "." + miner.Miner + " calc_diff " + fmt.Sprintf("%f", (calc_diff)) + " miner.Difficulty " + fmt.Sprintf("%f", (miner.Difficulty)) + " server_diff " + fmt.Sprintf("%f", (server_diff)))
				miner.Zlog.Info().Msg(miner.User + "." + miner.Miner + " submit_target " + hex.EncodeToString(submit_target.Bytes()) + " network_target " + hex.EncodeToString(network_target.Bytes()) + " target " + hex.EncodeToString(miner.ServerTarget.Bytes()) + " cmp " + fmt.Sprintf("%d", (network_target.Cmp(submit_target))))
			}

			submit_item.Hash = hex.EncodeToString(calc_hash)
			submit_item.Target = hex.EncodeToString(miner.Target.Bytes())
			submit_item.Submit_target = hex.EncodeToString(calc_hash)
			submit_item.Height = int64(job.Height)
			submit_item.Pow = hex.EncodeToString(calc_hash)
			submit_item.Net_target = hex.EncodeToString(network_target.Bytes())

			pool_blk_item.Height = int64(job.Height)
			pool_blk_item.Hash = hex.EncodeToString(calc_hash)
			pool_blk_item.Pow = hex.EncodeToString(calc_hash)
			pool_blk_item.Net_target = hex.EncodeToString(network_target.Bytes())

			blk_detail_height = int64(job.Height)
			blk_detail_hash = hex.EncodeToString(calc_hash)
			blk_detail_success = false

			blk_detail_miner_diff = float64(job.Difficulty)
			blk_detail_pool_diff = miner.Server.RefDifficulty
			if ack.Result == true {
				if (calc_diff >= server_diff) || (network_target.Cmp(submit_target) >= 0) {
					miner.Server.SubIdx++
					Produce_block_submit(miner /*header,*/, &job, submit_item.Hash, miner.Server.SubIdx)
					miner.SubmitIndex++
					miner.Submits = miner.Submits + 1
					new_found = true
				}
				if new_found && float64(miner.Server.MoneroJob.Difficulty) <= calc_diff {
					pool_blk_item.Submit = "y"
					pool_blk_item.Success = false
					pool_blk_item.Accepts = miner.Accepts
					pool_blk_item.Rejects = miner.Rejects
					pool_blk_item.Reward = 0
					pool_blk_item.Fee = 0
					pool_blk_item.Nonce = nonce
					pool_blk_item.SubIdx = miner.Server.SubIdx
					dbif.NotifyPoolBlkStatsDb2(miner.Server, &pool_blk_item)
				}
			}
		} else {
			miner.LastHeader = job.BlocktemplateBlob
			miner.LastNonce = nonce
			ack.Result = false
			stratum.Handle_exception(miner, id, stratum.MINER_ERR_DUP_SHARE)
			miner.ErrDuplicates = miner.ErrDuplicates + 1
			return false, false, false
		}

	} else {
		ack.Result = false
		stratum.Handle_exception(miner, id, stratum.MINER_ERR_NOT_FOUND_JOB)
		miner.ErrStaleds = miner.ErrStaleds + 1
		return false, false, false
	}

	miner.LastJobId = job_id

	ack.Error = nil
	body, err := json.Marshal(ack)
	if err != nil {
		if miner.ZlogInit {
			miner.Zlog.Info().Msg(miner.User + "." + miner.Miner + " handle_submit Marshal " + err.Error())
		}
		miner.ErrOthers = miner.ErrOthers + 1
		stratum.Handle_exception(miner, id, stratum.MINER_ERR_UNKNOWN)
		return false, false, false
	}

	var body_string = string(body) + "\n"
	err = stratum.Conn_tx(miner.Conn, []byte(body_string))
	if err != nil {
		//miner.Server.Miners.Delete(miner.MinerId)
	}
	if miner.ZlogInit {
		miner.Zlog.Info().Msg(body_string)
	}
	miner.TxLock.Lock()
	miner.Status = coin.MINER_STATUS_RUNNING
	miner.TxLock.Unlock()

	if ack.Result {

		miner.Accepts += miner.Difficulty
		miner.M5Accepts += miner.Difficulty

		miner.VarDiffOpt.SubmitShares += miner.Difficulty

	} else {
		miner.Rejects += miner.Difficulty

	}
	now := time.Now()
	if miner.Server.Config.Diff.Filter == "kalman" {
		if ack.Result {
			share_interval := now.Sub(miner.LastSubmitime).Seconds()
			mhs := miner.Difficulty * share_interval
			diff_next, kalman_p := miner.DiffHandler.Handler(miner.Difficulty, share_interval)
			mhs_est := diff_next * miner.Server.Config.Diff.DiffAdjustInterval

			ratio := diff_next / miner.Difficulty
			if ratio > 0 {
				if now.Sub(miner.StartSubmitTime).Seconds() > 180 {
					if ratio >= 2 {
						miner.DifficultyNext = diff_next * 10000000 / 10000000
					} else if ratio <= 0.5 {
						miner.DifficultyNext = diff_next * 10000000 / 10000000
					} else {
					}
				} else {
					miner.DifficultyNext = diff_next * 10000000 / 10000000
				}
			}
			if miner.DifficultyNext > 0.0 {
				if miner.DifficultyNext < miner.VarDiffOpt.MinDiff {
					miner.DifficultyNext = miner.VarDiffOpt.MinDiff
				} else if miner.DifficultyNext > miner.VarDiffOpt.MaxDiff {
					miner.DifficultyNext = miner.VarDiffOpt.MaxDiff
				}
			}

			if miner.Server.Config.Diff.Dbg {
				coin.New_diff_into_db(miner.User, miner.Miner, fmt.Sprint(miner.MinerIndex), miner.Difficulty, diff_next, kalman_p, share_interval, mhs, mhs_est)
			}

		}
	} else {
		if now.Sub(miner.LastSubmitime).Seconds() < miner.Server.Config.Diff.DiffAdjustInterval {
			if ack.Result {
				if miner.VarDiffOpt.Uptimes++; miner.VarDiffOpt.Uptimes >= coin.DIFFICULTY_WAIT_TIMES {
					coin.VarAdjustDifficulty(miner, coin.UP_DIFF)
					miner.VarDiffOpt.LastCalcTime = now
				}
			}
		} else {
			miner.VarDiffOpt.Uptimes = 0
		}
		if now.Sub(miner.LastSubmitime).Seconds() > miner.Server.Config.Diff.DiffAdjustInterval*2 {
			if ack.Result {
				if miner.VarDiffOpt.Downtimes++; miner.VarDiffOpt.Downtimes >= coin.DIFFICULTY_WAIT_TIMES {
					coin.VarAdjustDifficulty(miner, coin.DOWN_DIFF)
					miner.VarDiffOpt.LastCalcTime = now
				}
			}
		} else {
			miner.VarDiffOpt.Downtimes = 0
		}
	}
	if ack.Result {
		miner.LastSubmitime = now
		miner.VarDiffOpt.LastSubmitTime = now
	}
	var duration float64 = float64(now.Sub(miner.StartSubmitTime)) / 1000000000

	if duration < 1 {
		duration = 1
	}

	diffOneShareHashesAvg := uint64(0xFFFFFFFFFFFFFFFF)
	miner.AverageHashrate = miner.Accepts * float64(diffOneShareHashesAvg) / duration / 1000000
	var m5_duration float64 = float64(now.Sub(miner.M5SubmitTime)) / 1000000000
	if m5_duration >= float64(time.Minute*5)/1000000000 {
		miner.M5SubmitTime = now
		miner.M5Hashrate = miner.M5Accepts * float64(diffOneShareHashesAvg) / m5_duration / 1000000

		miner.M5Accepts = 0
	}

	if miner.ZlogInit {
		miner.Zlog.Info().Msg(miner.User + "." + miner.Miner + " handle_submit M5Accepts " + fmt.Sprintf("%f", (miner.M5Accepts)) + " M5Hashrate(MH/S) " + fmt.Sprintf("%f", (miner.M5Hashrate)))
	}

	if miner.Server.Config.Diff.Filter == "kalman" {
	} else {
		if float64(now.Sub(miner.VarDiffOpt.LastCalcTime))/1000000000 >= miner.VarDiffOpt.AdjustTime {
			coin.VarAdjustDifficulty(miner, coin.UPDATE_DIFF)
			miner.VarDiffOpt.LastCalcTime = now
		}
	}

	if ack.Result {

		submit_item.Success = false
		if new_found {
			submit_item.Submit = "y"
			submit_item.SubIdx = miner.Server.SubIdx
		} else {
			submit_item.Submit = "n"
			submit_item.SubIdx = -1
		}

		submit_item.Accepts = miner.Accepts
		submit_item.Total_accepts = miner.Accepts
		submit_item.Rejects = miner.Rejects
		submit_item.Total_rejects = miner.Rejects
		submit_item.Reward = 0
		submit_item.Fee = 0
		submit_item.Nonce = nonce

		dbif.NotifyBlkDetailDb(miner, blk_detail_height, blk_detail_hash, blk_detail_success, blk_detail_miner_diff, blk_detail_pool_diff, nonce, submit_item.SubIdx)
		return true, new_found, true
	}
	return false, false, true
}

func contractBlockTemplateBlob(miner *coin.MinerObj, nonceHex string) (string, error) {
	blockTemplateStr := miner.MoneroJob.BlocktemplateBlob
	block, err := hex.DecodeString(blockTemplateStr)
	if err != nil {
		return "", err
	}
	if len(block) < 43 {
		return "", fmt.Errorf("blocktemplate blob too short: %d", len(block))
	}

	// nonce 是 4 字节 hex，直接解码成 bytes
	nonceBytes, err := hex.DecodeString(nonceHex)
	if err != nil {
		return "", fmt.Errorf("invalid nonce hex: %v", err)
	}
	if len(nonceBytes) != 4 {
		return "", fmt.Errorf("nonce must be 4 bytes, got %d", len(nonceBytes))
	}

	// 覆盖 nonce 区域 (39~42)
	copy(block[39:43], nonceBytes)

	return hex.EncodeToString(block), nil
}

func Produce_block_submit(miner *coin.MinerObj /*header Sha3xBlockHeader,*/, job *msg.MoneroStratumJob, PowHash string, SubIdx int64) {
	var nm msg.BlockMoneroMsg
	blockBlob, err := contractBlockTemplateBlob(miner, job.Nonce)
	if err != nil {
		fmt.Println(err)
		return
	}
	nm.Id = job.Id
	nm.Header = blockBlob
	nm.Nonce = job.Nonce
	nm.Pow = PowHash
	nm.SubIdx = SubIdx
	nm.User = miner.User
	nm.Miner = miner.Miner
	nm.Height = job.Height
	nm.Index = fmt.Sprint(miner.MinerIndex)
	body, err := json.Marshal(nm)
	if err != nil {
		logg.Error("[server]", zap.String("failed to Marshal job", err.Error()))
		return
	}

	// JSON主体
	blk := string(body)

	// 高度（uint32 → 4字节 → hex编码8字符）
	heightHex := fmt.Sprintf("%08x", job.Height)

	// Index（uint32 → 4字节 → hex编码8字符）
	indexHex := fmt.Sprintf("%08x", miner.MinerIndex)

	// 拼接最终消息
	msg := blk + heightHex + indexHex
	// fmt.Println(msg)
	logg.Info("[server]", zap.String("final_msg", msg))

	if miner.Server.PubCh == nil {
		miner.Server.PubCh = utility.InitZmqPub(miner.Server.Config.Zmq.Pub)
	}
	if miner.Server.PubCh != nil {
		// fmt.Println(msg)
		err := miner.Server.PubCh.SendMessage([][]byte{[]byte("blkmonero"), []byte(msg)})
		if err != nil {
			miner.Server.PubCh.Destroy()
			miner.Server.PubCh = nil
			logg.Info("[server]", zap.String("blk", err.Error()))
		} else {
			logg.Info("[server]", zap.String("blk", "sent"))
		}
	}

}

// var start_job_id uint64 = 0

// server-->miner
func parse_miner_notify(miner *coin.MinerObj, msg msg.MoneroStratumJob) int {
	if miner.MoneroJob.Height != msg.Height {
		miner.Job.IsClean = true
	}
	miner.MoneroJob = msg
	miner.MoneroJob.JobId = msg.JobId
	return 1
}

func Init(server *coin.ServerContext) {
	ServerMoneroCtx.ServerCtx = server
	ServerMoneroCtx.RandomxVM = &RandomXValidator{}
	logg = server.Logg
	logg.Info("[server]", zap.String("server_sha3x_version", SERVER_MONERO_VERSION))
	coin.Init_diff_db()
}

func Start() {

}

func Stop() {
	coin.DiffStop()
}

func InitMiner(miner *coin.MinerObj) {
	miner.MoneroJob = miner.Server.MoneroJob
	// miner.MoneroJob.Extranonce1 = miner.Job.Extranonce1

	server_target := new(big.Int)
	t_bytes, err := hex.DecodeString(miner.MoneroJob.Target)
	if err != nil {
		logg.Error("[server]", zap.String("DecodeString", err.Error()))
		return
	}
	//server_target.SetBytes(common.Reverse(t_bytes))
	miner.MoneroJob = ServerMoneroCtx.ServerCtx.MoneroJob
	server_target.SetBytes(t_bytes)
	miner.ServerTarget = server_target
	miner.ServerTargetS = miner.Server.SJob.Target
	miner.CurHeight = uint32(miner.MoneroJob.Height)
}

func Handle_subscribe_sha3x(miner *coin.MinerObj, id float64, extranonce1 string) {

}

func HandleMinerSubscribe(miner *coin.MinerObj, id float64, extranonce1 string, msg string) {

}

func HandleMinerAuth(miner *coin.MinerObj) {

}

func HandleMinerSubmit(miner *coin.MinerObj, id float64, miner_user string, job_id string, nonce2 string, ntime string, nonce string) (bool, bool, bool) {
	//nonce_str, _ := stratum.ReverseHexStringByByte(nonce)
	accept_ok, submit_ok, handle_ok := handle_submit(miner, id, miner_user, job_id, nonce2, ntime, nonce)
	return accept_ok, submit_ok, handle_ok
}

func SetDifficulty(miner *coin.MinerObj) {
	stratum.Set_difficulty(miner)
}

func MoneroNotify(miner *coin.MinerObj) {
	miner.TxLock.Lock()
	if !((miner.Status == coin.MINER_STATUS_AUTHORIZED) || (miner.Status == coin.MINER_STATUS_RUNNING)) {
		miner.TxLock.Unlock()
		return
	}
	miner.TxLock.Unlock()
	if miner.DifficultyNext > -1 {
		ratio := miner.DifficultyNext / miner.Difficulty
		if ratio > 1.1 || ratio < 0.9 {
			miner.Difficulty = miner.DifficultyNext
			miner.DifficultyNext = -1
			stratum.Set_difficulty(miner)
			//logg.Info("[gbt]", zap.Float64("update Diff", miner.Difficulty))
		} else {
			miner.DifficultyNext = -1
		}
	}

	miner.TxLock.Lock()
	//log.Println("[server]extra1, id", miner.Job.Extranonce1, miner.Job.Job_id, miner.MinerId)

	var msg Monero_msg

	msg.Params.Id = miner.Session
	msg.Params.SeedHash = miner.MoneroJob.SeedHash
	msg.Params.JobId = miner.MoneroJob.JobId
	msg.Params.Blob = miner.MoneroJob.BlockhashingBlob
	msg.Params.Height = uint32(miner.MoneroJob.Height)
	miner.MoneroJob.Difficulty = uint64(miner.Difficulty)
	msg.Params.NextSeedHash = ""
	msg.Params.Algo = "rx/0"
	//target_s, _ := stratum.ReverseHexStringByByte(miner.Sha3xJob.Target)
	//msg.Params.Target = target_s[48:]
	target_new, _ := utility.MoneroDiffToTarget(miner.Difficulty)
	target_str := fmt.Sprintf("%064x", target_new.Bytes())
	target_strr, strerr := stratum.ReverseHexStringByByte(target_str)
	if strerr != nil {
		println("ReverseHexStringByByte", strerr.Error())
	}
	//println("target=", target_str, "r=", target_strr)
	msg.Params.Target = target_strr[48:]

	miner.CurHeight = uint32(miner.MoneroJob.Height)

	// miner.MoneroJob.JobDifficulty = miner.Difficulty

	miner.Jobs.LoadOrStore(miner.MoneroJob.JobId, miner.MoneroJob)

	stratum.AddAndUpdateJob(miner)

	stratum.UpdateJobs(miner)

	miner.JobId++

	var body []byte
	var err error

	msg.Jsonrpc = "2.0"
	msg.Method = "job"

	body, err = json.Marshal(msg)
	if err != nil {
		miner.Server.Logg.Error("[server]", zap.String("Marshal", err.Error()))
		miner.TxLock.Unlock()
		return
	}

	var body_string = string(body) + "\n"
	err = stratum.Conn_tx(miner.Conn, []byte(body_string))
	if err != nil {
		//delete(miner.Server.Miners, miner.MinerId)
		//miner.Server.Miners.Delete(miner.MinerId)
	}
	miner.TxLock.Unlock()
	if miner.ZlogInit {
		miner.Zlog.Info().Msg(body_string)
	}
}

func Notify(miner *coin.MinerObj) {
	MoneroNotify(miner)
}

func formatUint64ToHexWithPadding(val uint64) string {
	hexStr := fmt.Sprintf("%016x", val)

	if len(hexStr) < 64 {
		paddingLen := 64 - len(hexStr)
		hexStr += string(make([]byte, paddingLen))
		for i := len(hexStr) - paddingLen; i < 64; i++ {
			hexStr = hexStr[:i] + "0" + hexStr[i+1:]
		}
	}
	return hexStr
}

func formatWideTargetTo32BytesTarget(wide_target string) string {
	if len(wide_target) > 64 {
		panic("任务中的wide_target错误：")
	}
	// 去掉前缀 0x 或 0X
	wide_target = strings.TrimPrefix(wide_target, "0x")
	wide_target = strings.TrimPrefix(wide_target, "0X")
	wide_target = fmt.Sprintf("%0*s%s", 64-len(wide_target), "", wide_target)
	return wide_target
}

var last_seed string = ""

func randomxJobId() string {
	// 生成4个字节
	bytes := make([]byte, 4)
	_, err := rand.Read(bytes)
	if err != nil {
		panic(err)
	}

	// 转成 hex 字符串
	hexStr := hex.EncodeToString(bytes)
	return hexStr
}

func HandleJobMsg(server *coin.ServerContext, Msg []byte) {
	var result msg.MoneroStratumJob
	server.Logg.Warn("[server]", zap.String("receive", "job"))

	if err := json.Unmarshal(Msg, &result); err != nil {
		server.Logg.Error("[server]", zap.String("Unmarshal", err.Error()))
		return
	}
	result.Target = calc_target(result.Difficulty)
	// 上个模板 seed_hash 和本次 seed_hash 不一致时，重置 randomx 虚拟机
	if result.SeedHash != last_seed {
		fmt.Println("开始创建新的 randomx vm, 本次 seed_hash：", result.SeedHash)

		seedBytes, err := hex.DecodeString(result.SeedHash)
		if err != nil {
			panic(err)
		}

		// 如果已有旧 VM，先释放
		if ServerMoneroCtx.RandomxVM != nil {
			ServerMoneroCtx.RandomxVM.Destroy()
		}

		// 创建新 VM
		vm, err := NewRandomXValidator(seedBytes)
		if err != nil {
			panic(err)
		}

		ServerMoneroCtx.RandomxVM = vm
		last_seed = result.SeedHash
	}

	server.MoneroJob = msg.MoneroStratumJob(result)
	logg.Debug("[gbt]", zap.String("Target", server.MoneroJob.Target))
	logg.Debug("[gbt]", zap.Uint64("Id", server.MoneroJob.Id), zap.Float64("network diff", float64(server.MoneroJob.Difficulty)))

	server.NetHight = uint64(server.MoneroJob.Height) // 当前server中的全网高度
	server.NetTarget = result.Target                  // 当前server中的全网target
	server.Miners.Range(func(k, v interface{}) bool {
		if v != nil {
			m, ok := v.(*(coin.MinerObj))
			if ok {
				if m != nil {
					server.Logg.Info("[server]", zap.String("lock", "start"))
					m.TxLock.Lock()
					status := m.Status
					cmd := parse_miner_notify(m, server.MoneroJob)
					m.TxLock.Unlock()
					server.Logg.Info("[server]", zap.String("lock", "end"))
					var need_notify bool = true
					if time.Now().Sub(m.ConnSetupTime) >= time.Duration(coin.CONN_EXPIRED_TIME)*time.Second {
						if (status != coin.MINER_STATUS_RUNNING) && (status != coin.MINER_STATUS_AUTHORIZED) {
							//m.Conn.Close()
							need_notify = false
						}
					}
					if need_notify {
						switch cmd {
						case 0: //extranonce 1 and extranonce2 size
							//TODO
						case 1: //notify
							MoneroNotify(m)
						}
					}
				}
			}
		}
		return true
	})
}

func IsMhsLow(miner *coin.MinerObj) bool {
	if miner.Mhs5M < 1 {
		return true
	}
	return false
}

func GetBlockInterval() int {
	return 3600
}