package main

import (
 "fmt"
 "os/exec"
 "sync"
)

var targetsTotal, targetsComplete int

func Check(line string) {
 fmt.Println("Check")
}

var wg sync.WaitGroup

func CheckingThread(ch chan string) {
 wg.Add(1)
 defer wg.Done()

 for targetsComplete < targetsTotal {
  targetsComplete++
  Check(<-ch)
 }
 fmt.Println("Limit")
 return
}

func main() {

 targets := []string{"1", "2", "3", "4", "5"}
 targetsTotal = len(targets)
 if targetsTotal < 1 {
  exec.Command("./main").Start()
  return
 }

 ch := make(chan string, targetsTotal)
 for _, target := range targets {
  ch <- target
 }

 for i := 0; i < 6; i++ {
  go CheckingThread(ch)
 }

 fmt.Println("Wait")
 wg.Wait()
 close(ch)

 fmt.Println("Success")
 exec.Command("./main").Start()
}

wg.Add(1)
  go CheckingThread(ch)