You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: service_windows.go
    path of file: ./repos/docker-ce/components/engine/cmd/dockerd
    
    the code of the file until where you have to start completion: package main

import (
	"bytes"
	"errors"
	"fmt"
	"io"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"time"
	"unsafe"

	"github.com/Microsoft/hcsshim/osversion"
	"github.com/sirupsen/logrus"
	"github.com/spf13/pflag"
	"golang.org/x/sys/windows"
	"golang.org/x/sys/windows/svc"
	"golang.org/x/sys/windows/svc/debug"
	"golang.org/x/sys/windows/svc/eventlog"
	"golang.org/x/sys/windows/svc/mgr"
)

var (
	flServiceName       *string
	flRegisterService   *bool
	flUnregisterService *bool
	flRunService        *bool

	setStdHandle = windows.NewLazySystemDLL("kernel32.dll").New
    
func (h *handler) Execute(_ []string, r <-chan svc.ChangeRequest, s chan<- svc.Status) (bool, uint32) {
	s <- svc.Status{State: svc.StartPending, Accepts: 0}
	// Unblock initService()
	h.fromsvc <- nil

	// Wait for initialization to complete.
	failed := <-h.tosvc
	if failed {
		logrus.Debug("Aborting service start due to failure during initialization")
		return true, 1
	}

	s <- svc.Status{State: svc.Running, Accepts: svc.AcceptStop | svc.AcceptShutdown | svc.Accepted(windows.SERVICE_ACCEPT_PARAMCHANGE)}
	logrus.Debug("Service running")
Loop:
	for {
		select {
		case failed = <-h.tosvc:
			break Loop
		case c := <-r:
			switch c.Cmd {
			case svc.Cmd(windows.SERVICE_CONTROL_PARAMCHANGE):
				h.daemonCli.reloadConfig()
			case svc.Interrogate:
				s <- c.CurrentStatus
			case svc.Stop, svc.Shutdown:
				s <- svc.Status{State: svc.StopPending, Accepts: 0}
				h.daemonCli.stop()
			}
		}
	}

	removePanicFile()
	if failed {
		return true, 1
	}
	return false, 0
}