// called 3 times per second; can throw exceptions:
public static void purge()
{
int minValue = 100;
bool hasFailed = false;
int secsToHold = 30;
if (List.Count > 20)
{
secsToHold = 0; // with way too many monitors in effect, holding complete ones is too expensive
}
else if (List.Count > 10)
{
secsToHold = 2; // with many monitors in effect, holding complete ones for long time is too expensive
}
lock (List)
{
// purge the list - remove old completed entries
for (int i = List.Count - 1; i >= 0; i--)
{
Monitored mm = (Monitored)List.GetByIndex(i);
if (mm.Complete && (secsToHold == 0 || mm.Finished.AddSeconds(secsToHold).CompareTo(DateTime.Now) < 0))
{
List.Remove(mm.Started); //.RemoveAt(i);
mm.Purged = true;
continue;
}
else if (!mm.Complete && mm.Progress > 0 && mm.Progress < minValue)
{
minValue = mm.Progress;
}
if (mm.Complete && !mm.Success)
{
hasFailed = true;
}
}
}
if (Display != null)
{
Display.purge(); // thread safe method, can call here
if (doWorkValues || ++count > 10) // force periodic update, avoid stale values
{
doWorkValues = false;
Display.WorkValues(); // thread safe method, can call here
if (count > 10)
{
count = 0;
}
}
Display.MayRefresh(); // thread safe method, can call here
}
if (Indicator != null)
{
int countActive = CountActive();
if (countActive > 0)
{
Indicator.BackColor = hasFailed ? Color.Red : Color.Green;
if (minValue > 0 && minValue < 100)
{
Indicator.Text = "" + minValue + "%";
LibSys.StatusBar.Progress(minValue);
}
else if (countActive > 0)
{
Indicator.Text = "" + countActive + "+" + ThreadPool2.WaitingCallbacks; //Project.threadPool.RequestQueueCount;
LibSys.StatusBar.ProgressOff();
}
}
else
{
Indicator.BackColor = Color.LightGray;
Indicator.Text = "";
LibSys.StatusBar.ProgressOff();
}
}
}
