feat: add signal handler

go-daemon/godaemon1.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"godaemon1/service"
 	"log"
 	"time"
 
@@ -26,6 +27,8 @@ func main() {
 	}
 	defer cntxt.Release()
 
+	service.SigHandler()
+
 	log.Print("- - - - - - - - - - - - - - -")
 	log.Print("daemon started")
 

go-daemon/service/sighandler.go

@@ -0,0 +1,34 @@
+package service
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func handler(signal os.Signal) {
+	if signal == syscall.SIGTERM {
+		log.Println("Got signal: SIGTERM")
+	} else if signal == syscall.SIGINT {
+		log.Println("Got signal: SIGINT")
+	} else {
+		log.Println("Got another signal")
+	}
+}
+
+func SigHandler() {
+	sigChannel := make(chan os.Signal, 1)
+	signal.Notify(sigChannel)
+	exitChannel := make(chan int)
+
+	go func() {
+		for {
+			s := <-sigChannel
+			handler(s)
+		}
+	}()
+
+	exitcode := <-exitChannel
+	os.Exit(exitcode)
+}