diff options
Diffstat (limited to 'Lib/asyncio/selector_events.py')
| -rw-r--r-- | Lib/asyncio/selector_events.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/asyncio/selector_events.py b/Lib/asyncio/selector_events.py index 70d8a9588fd..367c5fbe3f5 100644 --- a/Lib/asyncio/selector_events.py +++ b/Lib/asyncio/selector_events.py @@ -136,6 +136,8 @@ class BaseSelectorEventLoop(base_events.BaseEventLoop): def add_reader(self, fd, callback, *args): """Add a reader callback.""" + if self._selector is None: + raise RuntimeError('Event loop is closed') handle = events.Handle(callback, args, self) try: key = self._selector.get_key(fd) @@ -151,6 +153,8 @@ class BaseSelectorEventLoop(base_events.BaseEventLoop): def remove_reader(self, fd): """Remove a reader callback.""" + if self._selector is None: + return False try: key = self._selector.get_key(fd) except KeyError: @@ -171,6 +175,8 @@ class BaseSelectorEventLoop(base_events.BaseEventLoop): def add_writer(self, fd, callback, *args): """Add a writer callback..""" + if self._selector is None: + raise RuntimeError('Event loop is closed') handle = events.Handle(callback, args, self) try: key = self._selector.get_key(fd) @@ -186,6 +192,8 @@ class BaseSelectorEventLoop(base_events.BaseEventLoop): def remove_writer(self, fd): """Remove a writer callback.""" + if self._selector is None: + return False try: key = self._selector.get_key(fd) except KeyError: |