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81c72044a1
We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code. It is still used in a number of non-builtin stdlib modules. The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime. A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings). https://bugs.python.org/issue46541#msg411799 explains the rationale for this change. The core of the change is in: * (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros * Include/internal/pycore_runtime_init.h - added the static initializers for the global strings * Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState * Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings. That check is added to the PR CI config. The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()). This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *. The following are not changed (yet): * stop using _Py_IDENTIFIER() in the stdlib modules * (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API * (maybe) intern the strings during runtime init https://bugs.python.org/issue46541
18 lines
622 B
C
18 lines
622 B
C
#ifndef Py_CPYTHON_SYSMODULE_H
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# error "this header file must not be included directly"
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#endif
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PyAPI_FUNC(PyObject *) _PySys_GetAttr(PyThreadState *tstate,
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PyObject *name);
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PyAPI_FUNC(PyObject *) _PySys_GetObjectId(_Py_Identifier *key);
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PyAPI_FUNC(int) _PySys_SetObjectId(_Py_Identifier *key, PyObject *);
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PyAPI_FUNC(size_t) _PySys_GetSizeOf(PyObject *);
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typedef int(*Py_AuditHookFunction)(const char *, PyObject *, void *);
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PyAPI_FUNC(int) PySys_Audit(
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const char *event,
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const char *argFormat,
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...);
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PyAPI_FUNC(int) PySys_AddAuditHook(Py_AuditHookFunction, void*);
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