Sample Service.go

package main



import (
	"fmt"
	"log"
	"time"

	"golang.org/x/sys/windows/svc"
)

type myService struct{}

func main() {
	const svcname = "Client"
	inService, err := svc.IsAnInteractiveSession()
	if err != nil {
		log.Fatalf("failed to determine if we are running in service: %v", err)
	}
	if inService {
		runService(svcname)
		return
	}
}

func runService(name string) {
	run := svc.Run
	run(name, &myService{})
}

func (m *myService) Execute(args []string, r <-chan svc.ChangeRequest, changes chan<- svc.Status) (ssec bool, errno uint32) {
	const cmdsAccepted = svc.AcceptStop | svc.AcceptShutdown | svc.AcceptPauseAndContinue
	changes <- svc.Status{State: svc.StartPending}
	log.Printf("my function")
	changes <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
loop:
	for {
		select {
		case c := <-r:
			switch c.Cmd {
			case svc.Interrogate:
				changes <- c.CurrentStatus
				time.Sleep(100 * time.Millisecond)
				changes <- c.CurrentStatus
			case svc.Stop, svc.Shutdown:
				output := fmt.Sprintf("-%d", c.Context)
				log.Println(output)
				break loop
			case svc.Pause:
				changes <- svc.Status{State: svc.Paused, Accepts: cmdsAccepted}
			case svc.Continue:
				changes <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
			default:
				fmt.Printf("unexpected control request #%d", c)
			}
		}
	}
	changes <- svc.Status{State: svc.StopPending}
	return
}