``Signal`` ========== You can register async callback functions for specific events of an entrypoint. ``pre_start`` +++++++++++++ ``pre_start`` signal occurs on entrypoint starting up before any service has started. .. code-block:: python from aiomisc import entrypoint, receiver @receiver(entrypoint.PRE_START) async def prepare_database(entrypoint, services): ... with entrypoint() as loop: loop.run_forever() ``post_start`` ++++++++++++++ ``post_start`` signal occurs next entrypoint starting up after all services have been started. .. code-block:: python from aiomisc import entrypoint, receiver @receiver(entrypoint.POST_START) async def startup_notifier(entrypoint, services): ... with entrypoint() as loop: loop.run_forever() ``pre_stop`` ++++++++++++ ``pre_stop`` signal occurs on entrypoint shutdown before any service have been stopped. .. code-block:: python from aiomisc import entrypoint, receiver @receiver(entrypoint.PRE_STOP) async def shutdown_notifier(entrypoint): ... with entrypoint() as loop: loop.run_forever() ``post_stop`` +++++++++++++ ``post_stop`` signal occurs on entrypoint shutdown after all services have been stopped. .. code-block:: python from aiomisc import entrypoint, receiver @receiver(entrypoint.POST_STOP) async def cleanup(entrypoint): ... with entrypoint() as loop: loop.run_forever()