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Fix #13449: add 'blocking' parameter to sched.scheduler.run() so that the scheduler can be used in non-blocking applications

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Giampaolo Rodola' 2011-12-14 14:38:45 +01:00
parent 73520d57eb
commit 556ba04a8d
5 changed files with 34 additions and 4 deletions
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6
Lib/sched.py
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@ -91,8 +91,10 @@ class scheduler:
with self._lock:
return not self._queue
def run(self):
def run(self, blocking=True):
"""Execute events until the queue is empty.
If blocking is False executes the scheduled events due to
expire soonest (if any) and then return.
When there is a positive delay until the first event, the
delay function is called and the event is left in the queue;
@ -123,6 +125,8 @@ class scheduler:
time, priority, action, argument, kwargs = checked_event = q[0]
now = timefunc()
if now < time:
if not blocking:
return
delayfunc(time - now)
else:
event = pop(q)