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SickRage/sickbeard/generic_queue.py
echel0n 79f923dc9c Fixed andidb scene exceptions to be called only on shows that are marked as anime.
Cleanup now performed after scene exception retrieval is performed on globals.

Fixed db type errors for name parser cache and rss feed cache.
2014-07-14 21:10:57 -07:00

124 lines
3.5 KiB
Python

# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickRage.
#
# SickRage is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SickRage is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SickRage. If not, see <http://www.gnu.org/licenses/>.
import datetime
import threading
from sickbeard import logger
class QueuePriorities:
LOW = 10
NORMAL = 20
HIGH = 30
class GenericQueue(object):
def __init__(self):
self.currentItem = None
self.queue = []
self.queue_name = "QUEUE"
self.min_priority = 0
self.currentItem = None
self.lock = threading.Lock()
def pause(self):
logger.log(u"Pausing queue")
self.min_priority = 999999999999
def unpause(self):
logger.log(u"Unpausing queue")
self.min_priority = 0
def add_item(self, item):
item.added = datetime.datetime.now()
self.queue.append(item)
return item
def run(self, force=False):
# if the thread is dead then the current item should be finished
if self.currentItem is not None:
self.currentItem.finish()
self.currentItem = None
# only start a new task if one isn't already going
if not self.currentItem or not self.currentItem.isAlive():
# if there's something in the queue then run it in a thread and take it out of the queue
if len(self.queue) > 0:
# sort by priority
def sorter(x, y):
"""
Sorts by priority descending then time ascending
"""
if x.priority == y.priority:
if y.added == x.added:
return 0
elif y.added < x.added:
return 1
elif y.added > x.added:
return -1
else:
return y.priority - x.priority
self.queue.sort(cmp=sorter)
queueItem = self.queue[0]
if queueItem.priority < self.min_priority:
return
# launch the queue item in a thread
queueItem.name = self.queue_name + '-' + queueItem.name
queueItem.start()
self.currentItem = queueItem
# take it out of the queue
del self.queue[0]
class QueueItem(threading.Thread):
def __init__(self, name, action_id=0):
super(QueueItem, self).__init__()
self.name = name.replace(" ", "-").upper()
self.inProgress = False
self.priority = QueuePriorities.NORMAL
self.action_id = action_id
self.added = None
self.alive = True
self.stop = threading.Event()
def run(self):
"""Implementing classes should call this"""
self.inProgress = True
def finish(self):
"""Implementing Classes should call this"""
self.inProgress = False
self.alive = False