def enqueue(cls,taskinfo):
queue = taskinfo.get('queue',None)
if queue:
cls.push(queue, taskinfo)
logger.info("enqueued '%s' job on queue %s" % (str(taskinfo), queue))
else:
logger.error("unable to enqueue job with class %s" % str(taskinfo))
def work(self):
while True:
if self._shutdown:
logger.info('shutdown scheduled')
break
task = self.next_task()
self.child = None
if task:
logger.debug('picked up job,job details: %s' % task)
self.before_fork(task)
self.child = os.fork()
if self.child:
logger.info('Forked %s at %s' % (self.child,datetime.datetime.now()))
try:
os.waitpid(self.child, 0)
except OSError as ose:
"""???need to consider the system interrupt condition
"""
import errno
if ose.errno != errno.EINTR:
raise ose
logger.debug('done waiting')
else:
logger.info('Processing %s since %s' % (task._queue, datetime.datetime.now()))
self.after_fork(task)
self.process(task)
os._exit(0)