You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
26 lines
956 B
26 lines
956 B
13 years ago
|
# Copyright (c) 2005-2009 Zooko Wilcox-O'Hearn
|
||
|
|
# This file is part of pyutil; see README.rst for licensing terms.
|
||
|
|
|
||
|
|
import warnings
|
||
|
|
|
||
|
|
# from the Twisted library
|
||
|
|
from twisted.internet import reactor
|
||
|
|
|
||
|
|
# from the pyutil library
|
||
|
|
from weakutil import WeakMethod
|
||
|
|
|
||
|
|
def callLater_weakly(delay, func, *args, **kwargs):
|
||
|
|
"""
|
||
|
|
Call func later, but if func is a bound method then make the reference it holds to object be a weak reference.
|
||
|
|
|
||
|
|
Therefore, if this scheduled event is a bound method and it is the only thing keeping the object from being garbage collected, the object will be garbage collected and the event will be cancelled.
|
||
|
|
"""
|
||
|
|
warnings.warn("deprecated", DeprecationWarning)
|
||
|
|
|
||
|
|
def cleanup(weakmeth, thedeadweakref):
|
||
|
|
if weakmeth.callId.active():
|
||
|
|
weakmeth.callId.cancel()
|
||
|
|
weakmeth = WeakMethod(func, callback=cleanup)
|
||
|
|
weakmeth.callId = reactor.callLater(delay, weakmeth, *args, **kwargs)
|
||
|
|
return weakmeth
|