diff options
Diffstat (limited to 'Lib/asyncio')
| -rw-r--r-- | Lib/asyncio/events.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Lib/asyncio/events.py b/Lib/asyncio/events.py index 40946bbf65..68dc25e1e8 100644 --- a/Lib/asyncio/events.py +++ b/Lib/asyncio/events.py @@ -625,16 +625,23 @@ class BaseDefaultEventLoopPolicy(AbstractEventLoopPolicy): class _Local(threading.local): _loop = None + _pid = None _set_called = False def __init__(self): self._local = self._Local() + self._local._pid = os.getpid() def get_event_loop(self): """Get the event loop. This may be None or an instance of EventLoop. """ + if self._local._pid != os.getpid(): + # If we detect we're in a child process forked by multiprocessing, + # we reset self._local so that we'll get a new event loop. + self._local = self._Local() + if (self._local._loop is None and not self._local._set_called and isinstance(threading.current_thread(), threading._MainThread)): |