diff options
Diffstat (limited to 'aiogreen.py')
| -rw-r--r-- | aiogreen.py | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/aiogreen.py b/aiogreen.py index 79d005f..dead9a4 100644 --- a/aiogreen.py +++ b/aiogreen.py @@ -229,8 +229,15 @@ class EventLoop(asyncio.SelectorEventLoop): self._hub.debug_exceptions = debug # Detect blocking eventlet functions. The feature is implemented with - # signal.alarm() which is is not available on Windows. - self._hub.debug_blocking = debug and (sys.platform != 'win32') + # signal.alarm() which is is not available on Windows. Signal handlers + # can only be set from the main loop. So detecting blocking functions + # cannot be used on Windows nor from a thread different than the main + # thread. + self._hub.debug_blocking = ( + debug + and (sys.platform != 'win32') + and isinstance(threading.current_thread(), threading._MainThread)) + if (self._hub.debug_blocking and hasattr(self, 'slow_callback_duration')): self._hub.debug_blocking_resolution = self.slow_callback_duration |