FATAL Error All go routines are asleep. Deadlock.
This is what I tried. I am calling wg.Done()
. What is missing?
package main
import (
"fmt"
"strconv"
"sync"
)
func sender(wg *sync.WaitGroup, cs chan int) {
defer wg.Done()
for i := 0; i < 2; i++ {
fmt.Println(i)
cs <- i
}
}
func reciever(wg *sync.WaitGroup, cs chan int) {
x, ok := <-cs
for ok {
fmt.Println("Retrieved" + strconv.Itoa(x))
x, ok = <-cs
if !ok {
wg.Done()
break
}
}
}
func main() {
wg := &sync.WaitGroup{}
cs := make(chan int, 1000)
wg.Add(1)
go sender(wg, cs)
for i := 1; i < 30; i++ {
wg.Add(1)
go reciever(wg, cs)
}
wg.Wait()
close(cs)
}