PollScheduler: return None from _schedule_tasks

The _keep_scheduling() template method is used instead.

3 files changed, 12 insertions, 15 deletions

diff --git a/pym/_emerge/MetadataRegen.py b/pym/_emerge/MetadataRegen.py
index 340400119..efe300421 100644
--- a/pym/_emerge/MetadataRegen.py
+++ b/pym/_emerge/MetadataRegen.py
@@ -139,27 +139,21 @@ class MetadataRegen(PollScheduler):
 						pass
 
 	def _schedule_tasks(self):
-		"""
-		@rtype: bool
-		@returns: True if there may be remaining tasks to schedule,
-			False otherwise.
-		"""
 		if self._terminated_tasks:
-			return False
+			return
 
 		while self._can_add_job():
 			try:
 				metadata_process = next(self._process_iter)
 			except StopIteration:
 				self._remaining_tasks = False
-				return False
+				return
 
 			self._jobs += 1
 			self._running_tasks.add(metadata_process)
 			metadata_process.scheduler = self.sched_iface
 			metadata_process.addExitListener(self._metadata_exit)
 			metadata_process.start()
-		return True
 
 	def _metadata_exit(self, metadata_process):
 		self._jobs -= 1
diff --git a/pym/_emerge/PollScheduler.py b/pym/_emerge/PollScheduler.py
index 3b3ef67df..e270e6ad0 100644
--- a/pym/_emerge/PollScheduler.py
+++ b/pym/_emerge/PollScheduler.py
@@ -70,6 +70,14 @@ class PollScheduler(object):
 		"""
 		raise NotImplementedError()
 
+	def _keep_scheduling(self):
+		"""
+		@rtype: bool
+		@returns: True if there may be remaining tasks to schedule,
+			False otherwise.
+		"""
+		return False
+
 	def _schedule_tasks(self):
 		"""
 		This is called from inside the _schedule() method, which
@@ -83,7 +91,7 @@ class PollScheduler(object):
 		Unless this method is used to perform user interface updates,
 		or something like that, the first thing it should do is check
 		the state of _terminated_tasks and if that is True then it
-		should return False immediately (since there's no need to
+		should return immediately (since there's no need to
 		schedule anything after _terminate_tasks() has been called).
 		"""
 		pass
@@ -105,7 +113,7 @@ class PollScheduler(object):
 				self._terminated_tasks = True
 				self._terminate_tasks()
 
-			return self._schedule_tasks()
+			self._schedule_tasks()
 		finally:
 			self._scheduling = False
 
@@ -125,9 +133,6 @@ class PollScheduler(object):
 		while self._is_work_scheduled():
 			self.sched_iface.iteration()
 
-	def _keep_scheduling(self):
-		return False
-
 	def _is_work_scheduled(self):
 		return bool(self._running_job_count())
 
diff --git a/pym/_emerge/Scheduler.py b/pym/_emerge/Scheduler.py
index 66d76b1e0..5bb4fe83a 100644
--- a/pym/_emerge/Scheduler.py
+++ b/pym/_emerge/Scheduler.py
@@ -1542,8 +1542,6 @@ class Scheduler(PollScheduler):
 				not self._task_queues.merge)):
 				break
 
-		return self._keep_scheduling()
-
 	def _job_delay(self):
 		"""
 		@rtype: bool