void TaskSchedlulerLoop(object o)
{
while (Running)
{
int waitTime = -1;
List <TaskSchedlulerTask> tasksOrderedByTime = null;
// order tasks by run time
lock (tasks)
tasksOrderedByTime = tasks.OrderBy(t => t.RunIn).ToList();
// pick task closest in time
TaskSchedlulerTask closestTask = null;
if (tasksOrderedByTime != null && tasksOrderedByTime.Count > 0)
{
closestTask = tasksOrderedByTime[0];
}
if (closestTask != null)
{
waitTime = (int)closestTask.RunIn;
}
if (waitTime == -1)
{
ev.WaitOne();
}
else
{
ev.WaitOne(waitTime);
}
if (!Running)
{
return;
}
List <TaskSchedlulerTask> tasksToRunNow = null;
lock (tasks)
{
tasksToRunNow = tasks.Where(t => t.RunIn <= 0).ToList();
foreach (var taskToRemove in tasksToRunNow)
{
tasks.Remove(taskToRemove);
}
}
foreach (TaskSchedlulerTask t in tasksToRunNow)
{
RunTask(t);
}
}
}
public void SchedluleTask(Action task, TimeSpan timeFromNow)
{
//Debug.WriteLine("scheduleTask");
TaskSchedlulerTask newTask = new TaskSchedlulerTask()
{
SchedluledTime = DateTime.Now,
ExecuteAfter = timeFromNow,
Function = task
};
lock (tasks)
tasks.Add(newTask);
ev.Set();
}
bool RunTask(TaskSchedlulerTask task)
{
try
{
TimeSpan tsFromStart = DateTime.Now - task.SchedluledTime;
task.Function();
return(true);
}
catch (Exception ex)
{
if (OnException != null)
{
OnException(this, ex);
}
Trace.TraceWarning("Failed to run task");
Exceptions.Add(ex);
return(false);
}
}