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gh-126366: fix thread safety of dict key iterator #132693

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kumaraditya303 merged 1 commit into from
Apr 18, 2025
Merged

gh-126366: fix thread safety of dict key iterator #132693

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fix thread safety of dict key iterator
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@kumaraditya303
kumaraditya303 committed Apr 18, 2025
commit db9819bad366b45e9413acf5c515657a96311a4e
2 changes: 1 addition & 1 deletion Objects/dictobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5495,7 +5495,7 @@ dictiter_iternext_threadsafe(PyDictObject *d, PyObject *self,
ensure_shared_on_read(d);

i = _Py_atomic_load_ssize_relaxed(&di->di_pos);
k = _Py_atomic_load_ptr_relaxed(&d->ma_keys);
k = _Py_atomic_load_ptr_acquire(&d->ma_keys);
assert(i >= 0);
if (_PyDict_HasSplitTable(d)) {
PyDictValues *values = _Py_atomic_load_ptr_relaxed(&d->ma_values);
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