def setGreedCoro(loop: asyncio.AbstractEventLoop):
greedy_threshold = os.environ.get('SYN_GREEDY_CORO')
if greedy_threshold is not None: # pragma: no cover
logger.info(
f'Setting ioloop.slow_callback_duration to {greedy_threshold}')
loop.set_debug(True)
loop.slow_callback_duration = float(greedy_threshold)
def enable_async_loop_debugging(
event_loop: AbstractEventLoop) -> AbstractEventLoop:
logging.info("Enabling coroutine debugging. Loop id {}.".format(
id(asyncio.get_event_loop())))
# Enable debugging
event_loop.set_debug(True)
# Make the threshold for "slow" tasks very very small for
# illustration. The default is 0.1 (= 100 milliseconds).
event_loop.slow_callback_duration = 0.001
# Report all mistakes managing asynchronous resources.
warnings.simplefilter("always", ResourceWarning)
return event_loop
def enable_async_loop_debugging(
event_loop: AbstractEventLoop,
slow_callback_duration: float = 0.1) -> AbstractEventLoop:
"""Enables debugging on an event loop.
Args:
event_loop: The event loop to enable debugging on
slow_callback_duration: The threshold at which a callback should be
alerted as slow.
"""
logging.info("Enabling coroutine debugging. Loop id {}.".format(
id(asyncio.get_event_loop())))
# Enable debugging
event_loop.set_debug(True)
# Make the threshold for "slow" tasks very very small for
# illustration. The default is 0.1 (= 100 milliseconds).
event_loop.slow_callback_duration = slow_callback_duration
# Report all mistakes managing asynchronous resources.
warnings.simplefilter("always", ResourceWarning)
return event_loop
