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gh-119344: Make critical section API public (#119353)

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This makes the following macros public as part of the non-limited C-API for
locking a single object or two objects at once.

* `Py_BEGIN_CRITICAL_SECTION(op)` / `Py_END_CRITICAL_SECTION()`
* `Py_BEGIN_CRITICAL_SECTION2(a, b)` / `Py_END_CRITICAL_SECTION2()`

The supporting functions and structs used by the macros are also exposed for
cases where C macros are not available.
This commit is contained in:
Sam Gross 2024-06-21 15:50:18 -04:00 • committed by GitHub
parent 03fa2df927
commit 8f17d69b7b
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15 changed files with 459 additions and 225 deletions
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Objects/dictobject.c
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@ -3116,7 +3116,7 @@ _PyDict_FromKeys(PyObject *cls, PyObject *iterable, PyObject *value)
goto dict_iter_exit;
}
}
dict_iter_exit:
dict_iter_exit:;
Py_END_CRITICAL_SECTION();
} else {
while ((key = PyIter_Next(it)) != NULL) {