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37 lines
999 B
Python

import uuid
from pickle import loads, dumps
from .proxy import conn
from .queue import Queue
class DelayedResult(object):
def __init__(self, key):
self.key = key
self._rv = None
@property
def return_value(self):
if self._rv is None:
rv = conn.get(self.key)
if rv is not None:
# cache the result
self._rv = loads(rv)
return self._rv
class job(object):
def __init__(self, queue_name='default'):
self.queue = Queue(queue_name)
def __call__(self, f):
def delay(*args, **kwargs):
rv_key = '%s:result:%s' % (self.queue.key, str(uuid.uuid4()))
if f.__module__ == '__main__':
raise ValueError('Functions from the __main__ module cannot be processed by workers.')
s = dumps((f, rv_key, args, kwargs))
conn.rpush(self.queue.key, s)
return DelayedResult(rv_key)
f.delay = delay
return f