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[3.14] gh-140061: Use _PyObject_IsUniquelyReferenced() to check if objects are uniquely referenced (gh-140062) - #140157
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colesbury merged 1 commit intoOct 15, 2025
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…bjects are uniquely referenced (pythongh-140062) The previous `Py_REFCNT(x) == 1` checks can have data races in the free threaded build. `_PyObject_IsUniquelyReferenced(x)` is a more conservative check that is safe in the free threaded build and is identical to `Py_REFCNT(x) == 1` in the default GIL-enabled build. (cherry picked from commit 32c2649) Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>
miss-islington
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October 15, 2025 13:48
colesbury
enabled auto-merge (squash)
October 15, 2025 13:49
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The previous Py_REFCNT(x) == 1 checks can have data races in the free
threaded build. _PyObject_IsUniquelyReferenced(x) is a more conservative
check that is safe in the free threaded build and is identical to
Py_REFCNT(x) == 1 in the default GIL-enabled build.
(cherry picked from commit 32c2649)
Co-authored-by: Sergey Miryanov sergey.miryanov@gmail.com