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gh-79149: document reentrant safety of loop.call_soon_threadsafe (#128662)

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Co-authored-by: Thomas Grainger <tagrain@gmail.com>
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Kumar Aditya 2025-01-09 14:49:05 +05:30 • committed by GitHub
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Doc/library/asyncio-eventloop.rst
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@ -246,6 +246,9 @@ Scheduling callbacks
another thread, this function *must* be used, since :meth:`call_soon` is not another thread, this function *must* be used, since :meth:`call_soon` is not
thread-safe. thread-safe.
This function is safe to be called from a reentrant context or signal handler,
however, it is not safe or fruitful to use the returned handle in such contexts.
Raises :exc:`RuntimeError` if called on a loop that's been closed. Raises :exc:`RuntimeError` if called on a loop that's been closed.
This can happen on a secondary thread when the main application is This can happen on a secondary thread when the main application is
shutting down. shutting down.