Viewing file:  internet_task_clock.py (1.02 KB) -rw-r--r--
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"""
Fix from Twisted r20480.
"""
from twisted.internet.task import Clock
from twisted.internet import base
def callLater(self, when, what, *a, **kw):
"""
Copied from twisted.internet.task.Clock, r20480. Fixes the bug
where the wrong DelayedCall would sometimes be returned.
"""
dc = base.DelayedCall(self.seconds() + when,
what, a, kw,
self.calls.remove,
lambda c: None,
self.seconds)
self.calls.append(dc)
self.calls.sort(lambda a, b: cmp(a.getTime(), b.getTime()))
return dc
def clockIsBroken():
"""
Returns whether twisted.internet.task.Clock has the bug that
returns the wrong DelayedCall or not.
"""
clock = Clock()
dc1 = clock.callLater(10, lambda: None)
dc2 = clock.callLater(1, lambda: None)
if dc1 is dc2:
return True
else:
return False
def install():
"""
Insert the fixed callLater method.
"""
Clock.callLater = callLater
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