private int ServiceCommandCallbackEx(int command, int eventType, IntPtr eventData, IntPtr eventContext)
{
switch (command)
{
case ControlOptions.CONTROL_POWEREVENT:
{
ThreadPool.QueueUserWorkItem(_ => DeferredPowerEvent(eventType, eventData));
break;
}
case ControlOptions.CONTROL_SESSIONCHANGE:
{
// The eventData pointer can be released between now and when the DeferredDelegate gets called.
// So we capture the session id at this point
WTSSESSION_NOTIFICATION sessionNotification = new WTSSESSION_NOTIFICATION();
Marshal.PtrToStructure(eventData, sessionNotification);
ThreadPool.QueueUserWorkItem(_ => DeferredSessionChange(eventType, sessionNotification.sessionId));
break;
}
default:
{
ServiceCommandCallback(command);
break;
}
}
return(0);
}
private Int32 ServiceCommandCallbackEx(ControlOptions command, Int32 eventType, IntPtr eventData, IntPtr eventContext)
{
if (command != ControlOptions.PowerEvent &&
command != ControlOptions.SessionChange &&
command != ControlOptions.Interrogate)
{
XTrace.WriteLine("ServiceCommandCallbackEx(command={0}, eventType={1}, eventData={2:x}, eventContext={3:x})", command, eventType, eventData, eventContext);
}
switch (command)
{
case ControlOptions.Interrogate:
ReportStatus(_status.currentState, 0, false);
break;
case ControlOptions.Stop:
case ControlOptions.Shutdown:
ReportStatus(ServiceControllerStatus.StopPending);
ThreadPoolX.QueueUserWorkItem(() =>
{
try
{
_service.StopLoop();
}
catch (Exception ex)
{
XTrace.WriteException(ex);
}
ReportStatus(ServiceControllerStatus.Stopped);
});
break;
case ControlOptions.PowerEvent:
XTrace.WriteLine("PowerEvent {0}", (PowerBroadcastStatus)eventType);
break;
case ControlOptions.SessionChange:
var sessionNotification = new WTSSESSION_NOTIFICATION();
Marshal.PtrToStructure(eventData, sessionNotification);
XTrace.WriteLine("SessionChange {0}, {1}", (SessionChangeReason)eventType, sessionNotification.sessionId);
break;
case ControlOptions.TimeChange:
var time = new SERVICE_TIMECHANGE_INFO();
Marshal.PtrToStructure(eventData, time);
XTrace.WriteLine("TimeChange {0}=>{1}", DateTime.FromFileTime(time.OldTime), DateTime.FromFileTime(time.NewTime));
break;
default:
ReportStatus(_status.currentState);
break;
}
return(0);
}
