Update Scheduler to protect against infinite loop

If we have running tasks, but we're not listening to these tasks,
we're going to loop forever. So throw an exception in this case.

diff --git a/pym/_emerge/Scheduler.py b/pym/_emerge/Scheduler.py
index a1b0ae462db376694ecbaac617e0249c5ad4601d..9215678bbf7866f4f30b645835388f854250b7a3 100644 (file)
--- a/pym/_emerge/Scheduler.py
+++ b/pym/_emerge/Scheduler.py
@@ -1683,15 +1683,13 @@ class Scheduler(PollScheduler):
                        self._set_max_jobs(1)
 
                while self._schedule():
-                       if self._poll_event_handlers:
-                               self._poll_loop()
+                       self._poll_loop()
 
                while True:
                        self._schedule()
                        if not self._is_work_scheduled():
                                break
-                       if self._poll_event_handlers:
-                               self._poll_loop()
+                       self._poll_loop()
 
        def _keep_scheduling(self):
                return bool(not self._terminated_tasks and self._pkg_queue and \