// method to set the time when the timer should wake up to invoke the next schedule
private static void SetNextEventTime()
{
if (m_schedulesList.Count == 0) {
m_timer.Change(Timeout.Infinite, Timeout.Infinite); // this will put the timer to sleep
return;
}
m_nextSchedule = (Schedule) m_schedulesList[0];
TimeSpan ts = m_nextSchedule.NextInvokeTime.Subtract(DateTime.Now);
if (ts < TimeSpan.Zero)
ts = TimeSpan.Zero; // cannot be negative !
m_timer.Change((int) ts.TotalMilliseconds, Timeout.Infinite); // invoke after the timespan
}
/// <summary>
/// Shutdown the scheduler
/// </summary>
/// <remarks>
/// once shutdown, the only way to restart the scheduler is to restart the whole application
/// </remarks>
public static void Shutdown()
{
lock (lockObj) {
if (IsShutDown) return;
m_timer = null;
m_schedulesList.Clear();
m_nextSchedule = null;
Logger.InfoFormat(WINDOWINFOFORMAT, "Scheduler Shutdown");
LogManager.Shutdown();
}
}
/// <summary>
/// remove a schedule object from the list
/// </summary>
/// <param name="s"></param>
public static void RemoveSchedule(Schedule s)
{
m_schedulesList.Remove(s);
SetNextEventTime();
if (OnSchedulerEvent != null)
OnSchedulerEvent(SchedulerEventType.DELETED, s.Name);
}
public static bool Contains(Schedule val)
{
return m_schedulesList.Contains(val);
}
/// <summary>
/// add a new schedule
/// </summary>
/// <param name="s"></param>
/// <param name="i"></param>
public static void AddSchedule(Schedule s, IInterceptor i)
{
if (IsShutDown)
throw new SchedulerException("Scheduler is already shutdown");
if (GetSchedule(s.Name) != null)
throw new SchedulerException("Schedule with the same name already exists");
m_schedulesList.Add(s);
if (i != null) {
s.PreTrigger += new Invoke(i.SchedulePreTrigger);
s.PostTrigger += new Invoke(i.SchedulePostTrigger);
}
m_schedulesList.Sort();
// adjust the next event time if schedule is added at the top of the list
if (m_schedulesList[0] == s)
SetNextEventTime();
if (OnSchedulerEvent != null)
OnSchedulerEvent(SchedulerEventType.CREATED, s.Name);
}
public static void AddSchedule(Schedule s)
{
AddSchedule(s, null);
}