Fixed miner threads for ethereum CLI

cmd/ethereum/flags.go

@@ -27,6 +27,7 @@ import (
 	"log"
 	"os"
 	"path"
+	"runtime"
 
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -71,6 +72,7 @@ var (
 	SHH              bool
 	Dial             bool
 	PrintVersion     bool
+	MinerThreads     int
 )
 
 // flags specific to cli client
@@ -121,6 +123,7 @@ func Init() {
 	flag.BoolVar(&StartMining, "mine", false, "start dagger mining")
 	flag.BoolVar(&StartJsConsole, "js", false, "launches javascript console")
 	flag.BoolVar(&PrintVersion, "version", false, "prints version number")
+	flag.IntVar(&MinerThreads, "minerthreads", runtime.NumCPU(), "number of miner threads")
 
 	// Network stuff
 	var (

cmd/ethereum/main.go

@@ -76,6 +76,7 @@ func main() {
 		Dial:         Dial,
 		BootNodes:    BootNodes,
 		NodeKey:      NodeKey,
+		MinerThreads: MinerThreads,
 	})
 
 	if err != nil {
@@ -113,10 +114,6 @@ func main() {
 		return
 	}
 
-	if StartMining {
-		utils.StartMining(ethereum)
-	}
-
 	if len(ImportChain) > 0 {
 		start := time.Now()
 		err := utils.ImportChain(ethereum, ImportChain)
@@ -139,6 +136,10 @@ func main() {
 
 	fmt.Printf("Welcome to the FRONTIER\n")
 
+	if StartMining {
+		ethereum.Miner().Start()
+	}
+
 	if StartJsConsole {
 		InitJsConsole(ethereum)
 	} else if len(InputFile) > 0 {