commit: 65379f436759dfbc4d56e52f1a145950779ebb60 Author: Zac Medico <zmedico <AT> gentoo <DOT> org> AuthorDate: Sun May 13 16:45:27 2018 +0000 Commit: Zac Medico <zmedico <AT> gentoo <DOT> org> CommitDate: Sun May 13 16:57:38 2018 +0000 URL: https://gitweb.gentoo.org/proj/portage.git/commit/?id=65379f43
AsyncioEventLoop: suppress BlockingIOError warning during loop close (bug 655656) Disable the asyncio event loop's SIGCHLD handler before attempting to close it, in order to suppress a harmless BlockingIOError warning during loop close. Closes: https://bugs.gentoo.org/655656 Reported-by: Helmut Jarausch <jarausch <AT> igpm.rwth-aachen.de> pym/portage/util/_eventloop/asyncio_event_loop.py | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/pym/portage/util/_eventloop/asyncio_event_loop.py b/pym/portage/util/_eventloop/asyncio_event_loop.py index b365939b0..bf5937de8 100644 --- a/pym/portage/util/_eventloop/asyncio_event_loop.py +++ b/pym/portage/util/_eventloop/asyncio_event_loop.py @@ -1,6 +1,8 @@ # Copyright 2018 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 +import signal + try: import asyncio as _real_asyncio from asyncio.events import AbstractEventLoop as _AbstractEventLoop @@ -31,7 +33,6 @@ class AsyncioEventLoop(_AbstractEventLoop): self.call_at = loop.call_at self.is_running = loop.is_running self.is_closed = loop.is_closed - self.close = loop.close self.create_future = (loop.create_future if hasattr(loop, 'create_future') else self._create_future) self.create_task = loop.create_task @@ -75,3 +76,10 @@ class AsyncioEventLoop(_AbstractEventLoop): @return: the internal event loop's AbstractEventLoop interface """ return self + + def close(self): + # Suppress spurious error messages like the following for bug 655656: + # Exception ignored when trying to write to the signal wakeup fd: + # BlockingIOError: [Errno 11] Resource temporarily unavailable + self._loop.remove_signal_handler(signal.SIGCHLD) + self._loop.close()
