ty4z2008/go-exit

An exit strategy for go routines

An exit strategy for go routines.

The library helps to end the go routines in your program and collects potential errors.

Install

go get github.com/simia-tech/go-exit

Example

func main() {
	exit.SetTimeout(2 * time.Second)

	counterExitSignalChan, err := exit.NewSignalChan("counter")
	if err != nil {
		log.Fatal(err)
	}
	go func() {
		counter := 0

		var errChan exit.ErrChan
		for errChan == nil {
			select {
			case errChan = <-counterExitSignalChan:
				break
			case <-time.After(1 * time.Second):
				counter++
				fmt.Printf("%d ", counter)
			}
		}

		switch {
		case counter%5 == 0:
			// Don't send a return via errChan to simulate
			// an infinite running go routine. The timeout
			// should be hit in this case.
		case counter%2 == 1:
			errChan <- fmt.Errorf("exit on the odd counter %d", counter)
		default:
			errChan <- nil
		}
	}()

	if report := exit.ExitOn(syscall.SIGINT); report != nil {
		fmt.Println()
		report.WriteTo(os.Stderr)
		os.Exit(-1)
	}
	fmt.Println()
}

License

The project is licensed under Apache 2.0.