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# vim: set fenc=utf-8 ft=python sw=4 ts=4 sts=4 et:
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from __future__ import absolute_import
import random
import weakref
from gevent.event import AsyncResult
__all__ = ['counter', 'ResultsDictionary']
[docs]def counter(start=None, minimum=0, maximum=2**64-1):
count = random.randint(minimum, maximum) if start is None else start
while True:
yield count
count += 1
if count >= maximum:
count = minimum
[docs]class ResultsDictionary(weakref.WeakValueDictionary):
def __init__(self):
weakref.WeakValueDictionary.__init__(self)
self._counter = counter()
[docs] def next(self):
result = AsyncResult()
result.ident = ident = '%s.%s' % (next(self._counter), hash(result))
self[ident] = result
return result