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J. Nick Koston 2024-05-14 10:03:00 +09:00
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docs/asyncio_thread_safety.md
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@ -6,7 +6,7 @@ Developing with asyncio requires careful attention to thread safety, as nearly a
Home Assistant has some conventions for handling async and non-async code in the same code base. The top highlights are:
- for deciding how to run a function based on whether it is decorated with `@callback`; for more details, see [Working with Async](asyncio_working_with_async.md).
- Deciding how to run a function from a helper depends on whether it is decorated with `@callback`; for more details, see [Working with Async](asyncio_working_with_async.md).
- Most APIs have a sync and async version when calling a function from a thread. The async APIs are prefixed with `async_`. For example, when firing an event from a thread other than the event loop, use `hass.bus.fire` instead of `hass.bus.async_fire`.
Be sure to enable [`asyncio` debug mode](https://docs.python.org/3/library/asyncio-dev.html#debug-mode) and [Home Assistant's built-in debug mode](https://www.home-assistant.io/integrations/homeassistant/#debug) during development as many thread safety errors can be detected automatically.