func updateDescription(handle windows.Handle, desc string) error {
d := windows.SERVICE_DESCRIPTION{toPtr(desc)}
return windows.ChangeServiceConfig2(handle,
windows.SERVICE_CONFIG_DESCRIPTION, (*byte)(unsafe.Pointer(&d)))
}
func registerService() error {
p, err := getServicePath()
if err != nil {
return err
}
m, err := mgr.Connect()
if err != nil {
return err
}
defer m.Disconnect()
c := mgr.Config{
ServiceType: windows.SERVICE_WIN32_OWN_PROCESS,
StartType: mgr.StartAutomatic,
ErrorControl: mgr.ErrorNormal,
DisplayName: "Docker Engine",
}
// Configure the service to launch with the arguments that were just passed.
args := []string{"--run-service"}
for _, a := range os.Args[1:] {
if a != "--register-service" && a != "--unregister-service" {
args = append(args, a)
}
}
s, err := m.CreateService(*flServiceName, p, c, args...)
if err != nil {
return err
}
defer s.Close()
// See http://stackoverflow.com/questions/35151052/how-do-i-configure-failure-actions-of-a-windows-service-written-in-go
const (
scActionNone = 0
scActionRestart = 1
scActionReboot = 2
scActionRunCommand = 3
serviceConfigFailureActions = 2
)
type serviceFailureActions struct {
ResetPeriod uint32
RebootMsg *uint16
Command *uint16
ActionsCount uint32
Actions uintptr
}
type scAction struct {
Type uint32
Delay uint32
}
t := []scAction{
{Type: scActionRestart, Delay: uint32(60 * time.Second / time.Millisecond)},
{Type: scActionRestart, Delay: uint32(60 * time.Second / time.Millisecond)},
{Type: scActionNone},
}
lpInfo := serviceFailureActions{ResetPeriod: uint32(24 * time.Hour / time.Second), ActionsCount: uint32(3), Actions: uintptr(unsafe.Pointer(&t[0]))}
err = windows.ChangeServiceConfig2(s.Handle, serviceConfigFailureActions, (*byte)(unsafe.Pointer(&lpInfo)))
if err != nil {
return err
}
err = eventlog.Install(*flServiceName, p, false, eventlog.Info|eventlog.Warning|eventlog.Error)
if err != nil {
return err
}
return nil
}