void ThreadStart()
{
LongTask task = null;
while (true)
{
lock (instanceLock)
{
if (task != null)
{
runningTasks.Remove(task);
task = null;
}
if (highTasks.First != null)
{
task = highTasks.First.Value;
highTasks.RemoveFirst();
}
else if (normalTasks.First != null)
{
task = normalTasks.First.Value;
normalTasks.RemoveFirst();
}
else if (lowTasks.First != null)
{
task = lowTasks.First.Value;
lowTasks.RemoveFirst();
}
else
{
Monitor.Wait(instanceLock);
}
if (task != null)
{
runningTasks.AddLast(task);
}
}
if (task != null)
{
task.Run();
}
}
}
public void Start(LongTask task)
{
lock (instanceLock)
{
if (task.Priority == LongTaskPriority.Low)
{
lowTasks.AddLast(task);
}
else if (task.Priority == LongTaskPriority.Normal)
{
normalTasks.AddLast(task);
}
else if (task.Priority == LongTaskPriority.High)
{
highTasks.AddLast(task);
}
Monitor.PulseAll(instanceLock);
}
}