tickcontext.go

package main

import (
	"context"
	"fmt"
	"os"
	"os/signal"
	"sync"
	"syscall"
	"time"
)

func main() {

	var wg sync.WaitGroup
	ticker := time.NewTicker(2 * time.Second)
	ctx, cancel := context.WithCancel(context.Background())

	signalCh := make(chan os.Signal, 1)
	signal.Notify(signalCh, syscall.SIGSTOP, syscall.SIGQUIT, syscall.SIGTERM, os.Interrupt)

	go func() {
		s := <-signalCh
		fmt.Println("Got signal ", s)
		fmt.Println("Clean up connections...")
		wg.Done()
		cancel()
	}()

	wg.Add(2)
	go doSomething(ctx, ticker, &wg)
	fmt.Println("Goroutines started..")
	wg.Wait()
	fmt.Println("Done with waiting")
}

func doSomething(ctx context.Context, ticker *time.Ticker, wg *sync.WaitGroup) {
	for {
		select {
		case <-ctx.Done():
			fmt.Println("Context is done")
			wg.Done()
			return
		case <-ticker.C:
			fmt.Println("Ticker running")
		}
	}
}