Create an interruptible, scheduled event loop in go

main_loop.go

import (
    "log"
    "os"
    "os/signal"
    "syscall"
    "time"
)

// registers a channel for handling an program kill/interrupt signal
func RegisterInterruptHandler() (interrupt chan os.Signal) {
    interrupt = make(chan os.Signal)
    signal.Notify(interrupt, os.Interrupt, os.Kill, syscall.SIGTERM)
    return
}

// creates a periodic ticker
func registerTicker(frequencyTime int) (ticker *time.Ticker) {
    return time.NewTicker(time.Duration(frequencyTime) * time.Second)
}

func run() {
    // Run your service code here
}

func main() {
    outlog := log.New(os.Stdout, "", log.LstdFlags)
	errlog := log.New(os.Stderr, "[ERROR] ", log.LstdFlags)
  
    outlog.Printf("Spinning up service...")
  
    interrupt := lib.RegisterInterruptHandler()
	ticker := lib.RegisterTicker(updateFrequency)

	outlog.Printf("Service registered! Starting...")

	interrupted := false
	for !interrupted {
		select {
		case <-ticker.C:
			lib.Run()
		case s := <-interrupt:
			outlog.Printf("Service stop requested: %v\n", s)
			interrupted = true
		}
	}

	defer ticker.Stop()
	defer close(interrupt)
  
	outlog.Printf("Service stopped!\n")
}