protected virtual Task OnErrorAsync(HTaskSchedularErrorEventArgs e)
{
if (e == null)
{
return(Task.CompletedTask);
}
return(Cancellable.CancellableRunAsync(
() => Error?.Invoke(e.Sender, e)
, this.Cts.Token));
}
/// <summary>
/// Start monitoring scheduled tasks in order to trigger IsTaskDue event when tasks are ready for execution.
/// </summary>
/// <param name="cancellationToken">If provided, the monitoring force stops all running tasks</param>
/// <returns>a running monitoring task</returns>
public Task Start(CancellationToken?cancellationToken = null)
{
if (!this.RunSwitch.TryOpen())
{
return(Task.CompletedTask);
}
//this.Load();
this.Cts = cancellationToken == null
? new CancellationTokenSource()
: CancellationTokenSource.CreateLinkedTokenSource(
(CancellationToken)cancellationToken);
return(Cancellable.CancellableRunAsync(MonitorTasks, this.Cts.Token));
}
private void MonitorTasks()
{
while (!this.Cts.IsCancellationRequested)
{
foreach (var task in this.Tasks)
{
Cancellable.CancellableRunAsync(() =>
{
this.ThreadTraffic.QueueCall(() =>
{
Process(task);
}, 0, task.UniqueKey);
}, this.Cts.Token);
}
Task.Delay(this.TickInterval, this.Cts.Token).GetAwaiter().GetResult();
}
}