fix ctrl+c cannot exit

cmd/cmd.go

@@ -135,12 +135,22 @@ func Spray() {
 	}
 
 	go func() {
-		c := make(chan os.Signal, 2)
-		signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+		exitChan := make(chan os.Signal, 2)
+		signal.Notify(exitChan, os.Interrupt, syscall.SIGTERM)
+
 		go func() {
-			<-c
-			logs.Log.Important("exit signal, save stat and exit")
-			canceler()
+			sigCount := 0
+			for {
+				<-exitChan
+				sigCount++
+				if sigCount == 1 {
+					logs.Log.Infof("Exit signal received, saving task and exiting...")
+					canceler()
+				} else if sigCount == 2 {
+					logs.Log.Infof("forcing exit...")
+					os.Exit(1)
+				}
+			}
 		}()
 	}()
 

internal/option.go

@@ -281,6 +281,7 @@ func (opt *Option) NewRunner() (*Runner, error) {
 		logs.Log.SetColor(false)
 		r.Color = false
 	}
+
 	if !(opt.Quiet || opt.NoBar) {
 		r.Progress = mpb.New(mpb.WithRefreshRate(100 * time.Millisecond))
 		logs.Log.SetOutput(r.Progress)

internal/runner.go

@@ -148,7 +148,7 @@ func (r *Runner) Prepare(ctx context.Context) error {
 		}()
 
 		if r.Count > 0 {
-			r.addBar(r.Count)
+			r.newBar(r.Count)
 		}
 
 		r.Pools, err = ants.NewPoolWithFunc(r.PoolSize, func(i interface{}) {
@@ -298,7 +298,7 @@ func (r *Runner) AddPool(task *Task) {
 	r.Pools.Invoke(task)
 }
 
-func (r *Runner) addBar(total int) {
+func (r *Runner) newBar(total int) {
 	if r.Progress == nil {
 		return
 	}