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| package main
import (
"context"
"fmt"
"os"
"os/signal"
"sync"
"time"
)
var wg sync.WaitGroup
func worker(name string, ctx context.Context, t time.Duration) {
fmt.Println(name, ": enter worker")
select {
case <-ctx.Done():
fmt.Println(name, ": worker context cancel, exit")
case <-time.After(t):
fmt.Println(name, ": worker process complete, exit")
}
wg.Done()
}
func main() {
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
defer stop()
wg.Add(2)
go worker("worker1", ctx, time.Second*2)
go worker("worker2", ctx, time.Second*4)
wg.Wait()
fmt.Println("exit main")
}
|