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cpython/Doc/data
Sam Gross d6b6fd70c4 [3.14] gh-145235: Make dict watcher API thread-safe for free-threaded builds (gh-145233) (#149691)
In free-threaded builds, concurrent calls to PyDict_AddWatcher, PyDict_ClearWatcher, PyDict_Watch, and PyDict_Unwatch can race on the shared callback array and the per-dict watcher tags. This change adds a mutex to serialize watcher registration and removal, atomic operations for tag updates, and atomic acquire/release synchronization for callback dispatch in _PyDict_SendEvent.

(cherry picked from commit 8a4895985f)

Co-authored-by: Alper <alperyoney@fb.com>
2026-05-12 13:21:31 -04:00
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