github.com/cnboonhan/delve@v0.0.0-20230908061759-363f2388c2fb/_fixtures/bpcountstest.go (about) 1 package main 2 3 import ( 4 "fmt" 5 "math/rand" 6 "sync" 7 "time" 8 ) 9 10 func demo(id int, wait *sync.WaitGroup) { 11 for i := 0; i < 100; i++ { 12 sleep := rand.Intn(10) + 1 13 fmt.Printf("id: %d step: %d sleeping %d\n", id, i, sleep) 14 time.Sleep(time.Duration(sleep) * time.Millisecond) 15 } 16 17 wait.Done() 18 } 19 20 func main() { 21 wait := new(sync.WaitGroup) 22 wait.Add(1) 23 wait.Add(1) 24 go demo(1, wait) 25 go demo(2, wait) 26 27 wait.Wait() 28 }