7cf1a59bae
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2492 fd906abe-77d9-0310-91a1-e0d9ade77398
57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
#
|
|
# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# This program 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 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program 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 this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
|
|
"""
|
|
Basic job scheduler using twisted.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from time import time
|
|
from zope.interface import implements
|
|
|
|
from cybertools.agent.base.agent import Master
|
|
from cybertools.agent.base.schedule import Scheduler as BaseScheduler
|
|
from cybertools.agent.common import states
|
|
from cybertools.agent.components import schedulers
|
|
from cybertools.agent.interfaces import IScheduler
|
|
|
|
from twisted.internet import reactor
|
|
from twisted.internet.defer import Deferred
|
|
|
|
|
|
class Scheduler(BaseScheduler):
|
|
|
|
implements(IScheduler)
|
|
|
|
def __init__(self, agent):
|
|
self.agent = agent
|
|
|
|
def schedule(self, job, startTime=None):
|
|
job.startTime = startTime or int(time())
|
|
if startTime is None:
|
|
startTime = int(time())
|
|
job.startTime = startTime
|
|
job.state = states.scheduled
|
|
reactor.callLater(startTime-int(time()), job.execute)
|
|
return startTime
|
|
|
|
def getJobsToExecute(startTime=0):
|
|
return [j for j in self.queue.values() if startTime <= j.startTime]
|
|
|
|
schedulers.register(Scheduler, Master, name='core')
|