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asyncio: don't do anything in _SelectorDatagramTransport if we're closed#28110

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asyncio: don't do anything in _SelectorDatagramTransport if we're closed#28110
istankovic wants to merge 1 commit into
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@istankovic
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It could happen that the transport's sendto() method is invoked after
the transport was closed. Closing the transport sets the _sock attribute
to None, which then causes the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3.9/asyncio/selector_events.py", line 1056, in sendto
self._sock.sendto(data, addr)
AttributeError: 'NoneType' object has no attribute 'sendto'

So just check if we're closed before doing anything, similarly to what we already
do in other methods.

It could happen that the transport's sendto() method is invoked after
the transport was closed. Closing the transport sets the _sock attribute
to None, which then causes the following exception:

    Traceback (most recent call last):
      File "/usr/lib/python3.9/asyncio/selector_events.py", line 1056, in sendto
	self._sock.sendto(data, addr)
    AttributeError: 'NoneType' object has no attribute 'sendto'

So just check if we're closed before doing anything, similarly to what we already
do in other methods.
@the-knights-who-say-ni
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Hello, and thanks for your contribution!

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@github-actions
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github-actions Bot commented Oct 2, 2021

This PR is stale because it has been open for 30 days with no activity.

@github-actions github-actions Bot added the stale Stale PR or inactive for long period of time. label Oct 2, 2021
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Closing this stale PR because the CLA is still not signed.

@github-actions github-actions Bot closed this Feb 18, 2022
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3 participants