void RunFrame(DispatcherFrame frame)
{
do
{
while (queue_bits != 0)
{
for (int i = TOP_PRIO; i > 0 && queue_bits != 0; i--)
{
int current_bit = queue_bits & (1 << i);
if (current_bit != 0)
{
PokableQueue q = priority_queues [i];
do
{
DispatcherOperation task;
lock (q)
{
task = (DispatcherOperation)q.Dequeue();
}
task.Invoke();
//
// call hooks.
//
if (task.Status == DispatcherOperationStatus.Aborted)
{
hooks.EmitOperationAborted(task);
}
else
{
hooks.EmitOperationCompleted(task);
}
if (!frame.Continue)
{
return;
}
if (HasShutdownStarted)
{
PerformShutdown();
return;
}
// if we are done with this queue, leave.
lock (q)
{
if (q.Count == 0)
{
queue_bits &= ~(1 << i);
break;
}
}
//
// If a higher-priority task comes in, go do that
//
if (current_bit < (queue_bits & ~current_bit))
{
break;
}
}while (true);
}
}
}
hooks.EmitInactive();
wait.WaitOne();
wait.Reset();
}while (frame.Continue);
}
