async def close(self, force: bool = True) -> None:
"""Kill the application by shutting all components down."""
if not self._closing_event.is_set():
_LOGGER.debug("bot requested to shutdown [force:%s]", force)
self._closing_event.set()
if self._closed or not force:
return
self._closed = True
async def handle(name: str,
awaitable: typing.Awaitable[typing.Any]) -> None:
future = asyncio.ensure_future(awaitable)
try:
await future
except Exception as ex:
loop = asyncio.get_running_loop()
loop.call_exception_handler({
"message": f"{name} raised an exception during shutdown",
"future": future,
"exception": ex,
})
await self.dispatch(lifetime_events.StoppingEvent(app=self))
_LOGGER.log(
ux.TRACE,
"StoppingEvent dispatch completed, now beginning termination")
calls = [
("rest", self._rest.close()),
("chunker", self._chunker.close()),
("voice handler", self._voice.close()),
*((f"shard {s.id}", s.close()) for s in self._shards.values()),
]
for coro in asyncio.as_completed([handle(*pair) for pair in calls]):
await coro
# Join any shards until they finish
await aio.all_of(*(s.join() for s in self._shards.values()),
timeout=len(self._shards))
# Clear out shard map
self._shards.clear()
await self.dispatch(lifetime_events.StoppedEvent(app=self))
def deserialize_stopped_event(self) -> lifetime_events.StoppedEvent:
return lifetime_events.StoppedEvent(app=self._app)