public virtual void Timer_Elapsed(object?state) // Timer is coming on a ThreadPool thread
{
Utils.Logger.Info("Trigger.Timer_Elapsed() ");
NextScheduleTimeUtc = null;
bool isMarketTradingDay;
DateTime marketOpenTimeUtc, marketCloseTimeUtc;
bool isMarketHoursValid = Utils.DetermineUsaMarketTradingHours(DateTime.UtcNow, out isMarketTradingDay, out marketOpenTimeUtc, out marketCloseTimeUtc, TimeSpan.FromDays(3));
if (!isMarketHoursValid)
{
Utils.Logger.Error("DetermineUsaMarketTradingHours() was not ok.");
}
SqTaskScheduler.gTaskScheduler.ScheduleTrigger(this, isMarketHoursValid, isMarketTradingDay, marketOpenTimeUtc, marketCloseTimeUtc);
try
{
if (SqTask != null)
{
SqExecution sqExecution = ((SqTask)SqTask).ExecutionFactory();
sqExecution.SqTask = (SqTask)SqTask;
sqExecution.Trigger = this;
sqExecution.Run();
}
}
catch (Exception e)
{
Utils.Logger.Error(e, "Trigger.Timer_Elapsed() Exception");
HealthMonitorMessage.SendAsync($"Exception in BrokerTaskExecutionThreadRun(). Exception: '{ e.ToStringWithShortenedStackTrace(1600)}'", HealthMonitorMessageID.SqCoreWebCsError).TurnAsyncToSyncTask();
}
}
private void SchedulerThreadRun()
{
try
{
Thread.CurrentThread.Name = "VBroker scheduler";
Thread.Sleep(TimeSpan.FromSeconds(5)); // wait 5 seconds, so that IBGateways can connect first
m_schedulerStartupTime = DateTime.UtcNow;
// maybe loop is not required.
// in the past we try to get UsaMarketOpenOrCloseTime() every 30 minutes. It was determined from YFinance intrady. "sleep 30 min for DetermineUsaMarketOpenOrCloseTime()"
// however, it may be a good idea that the Scheduler periodically wakes up and check Tasks
while (true)
{
Utils.Logger.Info($"SchedulerThreadRun() loop BEGIN. Awake at every {cVbSchedulerSleepMinutes}min.");
bool isMarketTradingDay;
DateTime marketOpenTimeUtc, marketCloseTimeUtc;
// Utils.DetermineUsaMarketTradingHours(): may throw an exception once per year, when Nasdaq page changes. BrokerScheduler.SchedulerThreadRun() catches it and HealthMonitor notified in VBroker.
bool isMarketHoursValid = Utils.DetermineUsaMarketTradingHours(DateTime.UtcNow, out isMarketTradingDay, out marketOpenTimeUtc, out marketCloseTimeUtc, TimeSpan.FromDays(3));
if (!isMarketHoursValid)
{
Utils.Logger.Error("DetermineUsaMarketTradingHours() was not ok."); // but we should continue and schedule Daily tasks not related to MarketTradingHours
}
foreach (SqTask sqTask in gSqTasks)
{
foreach (SqTrigger trigger in sqTask.Triggers)
{
ScheduleTrigger(trigger, isMarketHoursValid, isMarketTradingDay, marketOpenTimeUtc, marketCloseTimeUtc);
}
}
Thread.Sleep(TimeSpan.FromMinutes(cVbSchedulerSleepMinutes)); // try reschedulement in 30 minutes
}
}
catch (Exception e)
{
// Utils.DetermineUsaMarketTradingHours(): may throw an exception once per year, when Nasdaq page changes. BrokerScheduler.SchedulerThreadRun() catches it and HealthMonitor notified in VBroker.
HealthMonitorMessage.SendAsync($"Exception in Scheduler.RecreateTasksAndLoopThread. Exception: '{ e.ToStringWithShortenedStackTrace(1600)}'", HealthMonitorMessageID.SqCoreWebCsError).TurnAsyncToSyncTask();
}
}