blob: 45be6f82ebc1dac10c11602b4643343c05175660 [file] [log] [blame]
// +build ignore,OMIT
package main
import (
"fmt"
"math/rand"
"time"
)
// START1 OMIT
func main() {
joe := boring("Joe") // HL
ann := boring("Ann") // HL
for i := 0; i < 5; i++ {
fmt.Println(<-joe)
fmt.Println(<-ann)
}
fmt.Println("You're both boring; I'm leaving.")
}
// STOP1 OMIT
// START2 OMIT
func boring(msg string) <-chan string { // Returns receive-only channel of strings. // HL
c := make(chan string)
go func() { // We launch the goroutine from inside the function. // HL
for i := 0; ; i++ {
c <- fmt.Sprintf("%s: %d", msg, i)
time.Sleep(time.Duration(rand.Intn(1e3)) * time.Millisecond)
}
}()
return c // Return the channel to the caller. // HL
}
// STOP2 OMIT