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bpo-42745: Make the type cache per-interpreter (GH-23947)

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Make the type attribute lookup cache per-interpreter.

Add private _PyType_InitCache() function, called by PyInterpreterState_New().

Continue to share next_version_tag between interpreters, since static
types are still shared by interpreters.

Remove MCACHE macro: the cache is no longer disabled if the
EXPERIMENTAL_ISOLATED_SUBINTERPRETERS macro is defined.
This commit is contained in:
Victor Stinner 2020-12-26 01:45:43 +01:00 • committed by GitHub
parent 77fde8dc16
commit 4101018488
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7 changed files with 136 additions and 90 deletions
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Include/internal/pycore_pylifecycle.h
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@ -76,7 +76,7 @@ extern void _PyExc_Fini(PyThreadState *tstate);
extern void _PyImport_Fini(void);
extern void _PyImport_Fini2(void);
extern void _PyGC_Fini(PyThreadState *tstate);
extern void _PyType_Fini(void);
extern void _PyType_Fini(PyThreadState *tstate);
extern void _Py_HashRandomization_Fini(void);
extern void _PyUnicode_Fini(PyThreadState *tstate);
extern void _PyUnicode_ClearInterned(PyThreadState *tstate);