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bpo-40521: Make dict free lists per-interpreter (GH-20645)

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Each interpreter now has its own dict free list:

* Move dict free lists into PyInterpreterState.
* Move PyDict_MAXFREELIST define to pycore_interp.h
* Add _Py_dict_state structure.
* Add tstate parameter to _PyDict_ClearFreeList() and _PyDict_Fini().
* In debug mode, ensure that the dict free lists are not used after
  _PyDict_Fini() is called.
* Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS".
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Victor Stinner 2020-06-23 11:33:18 +02:00 • committed by GitHub
parent 26a1ad1c24
commit b4e85cadfb
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7 changed files with 102 additions and 85 deletions
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Modules/gcmodule.c
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@ -1038,7 +1038,7 @@ clear_freelists(PyThreadState *tstate)
_PyTuple_ClearFreeList(tstate);
_PyFloat_ClearFreeList(tstate);
_PyList_ClearFreeList(tstate);
_PyDict_ClearFreeList();
_PyDict_ClearFreeList(tstate);
_PyAsyncGen_ClearFreeLists(tstate);
_PyContext_ClearFreeList(tstate);
}