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