aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'portage_with_autodep/pym/_emerge/QueueScheduler.py')
-rw-r--r--portage_with_autodep/pym/_emerge/QueueScheduler.py105
1 files changed, 0 insertions, 105 deletions
diff --git a/portage_with_autodep/pym/_emerge/QueueScheduler.py b/portage_with_autodep/pym/_emerge/QueueScheduler.py
deleted file mode 100644
index 206087c..0000000
--- a/portage_with_autodep/pym/_emerge/QueueScheduler.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# Copyright 1999-2012 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-from _emerge.PollScheduler import PollScheduler
-
-class QueueScheduler(PollScheduler):
-
- """
- Add instances of SequentialTaskQueue and then call run(). The
- run() method returns when no tasks remain.
- """
-
- def __init__(self, main=True, max_jobs=None, max_load=None):
- PollScheduler.__init__(self, main=main)
-
- if max_jobs is None:
- max_jobs = 1
-
- self._max_jobs = max_jobs
- self._max_load = max_load
-
- self._queues = []
- self._schedule_listeners = []
-
- def add(self, q):
- self._queues.append(q)
-
- def remove(self, q):
- self._queues.remove(q)
-
- def clear(self):
- for q in self._queues:
- q.clear()
-
- def run(self, timeout=None):
-
- timeout_callback = None
- if timeout is not None:
- def timeout_callback():
- timeout_callback.timed_out = True
- return False
- timeout_callback.timed_out = False
- timeout_callback.timeout_id = self.sched_iface.timeout_add(
- timeout, timeout_callback)
-
- term_check_id = self.sched_iface.idle_add(self._termination_check)
- try:
- while not (timeout_callback is not None and
- timeout_callback.timed_out):
- # We don't have any callbacks to trigger _schedule(),
- # so we have to call it explicitly here.
- self._schedule()
- if self._keep_scheduling():
- self.sched_iface.iteration()
- else:
- break
-
- while self._is_work_scheduled() and \
- not (timeout_callback is not None and
- timeout_callback.timed_out):
- self.sched_iface.iteration()
- finally:
- self.sched_iface.source_remove(term_check_id)
- if timeout_callback is not None:
- self.sched_iface.unregister(timeout_callback.timeout_id)
-
- def _schedule_tasks(self):
- """
- @rtype: bool
- @return: True if there may be remaining tasks to schedule,
- False otherwise.
- """
- if self._terminated_tasks:
- return
-
- while self._can_add_job():
- n = self._max_jobs - self._running_job_count()
- if n < 1:
- break
-
- if not self._start_next_job(n):
- return
-
- def _keep_scheduling(self):
- return not self._terminated_tasks and any(self._queues)
-
- def _running_job_count(self):
- job_count = 0
- for q in self._queues:
- job_count += len(q.running_tasks)
- self._jobs = job_count
- return job_count
-
- def _start_next_job(self, n=1):
- started_count = 0
- for q in self._queues:
- initial_job_count = len(q.running_tasks)
- q.schedule()
- final_job_count = len(q.running_tasks)
- if final_job_count > initial_job_count:
- started_count += (final_job_count - initial_job_count)
- if started_count >= n:
- break
- return started_count
-