mirror of
https://github.com/python/cpython.git
synced 2025-10-31 13:41:24 +00:00
c2627d6eea
This PR adds the ability to enable the GIL if it was disabled at interpreter startup, and modifies the multi-phase module initialization path to enable the GIL when loading a module, unless that module's spec includes a slot indicating it can run safely without the GIL. PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148. A warning will be issued up to once per interpreter for the first GIL-using module that is loaded. If `-v` is given, a shorter message will be printed to stderr every time a GIL-using module is loaded (including the first one that issues a warning).
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#ifndef Py_INTERNAL_MODULEOBJECT_H
|
|
#define Py_INTERNAL_MODULEOBJECT_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef Py_BUILD_CORE
|
|
# error "this header requires Py_BUILD_CORE define"
|
|
#endif
|
|
|
|
extern void _PyModule_Clear(PyObject *);
|
|
extern void _PyModule_ClearDict(PyObject *);
|
|
extern int _PyModuleSpec_IsInitializing(PyObject *);
|
|
|
|
extern int _PyModule_IsExtension(PyObject *obj);
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
PyObject *md_dict;
|
|
PyModuleDef *md_def;
|
|
void *md_state;
|
|
PyObject *md_weaklist;
|
|
// for logging purposes after md_dict is cleared
|
|
PyObject *md_name;
|
|
#ifdef Py_GIL_DISABLED
|
|
void *md_gil;
|
|
#endif
|
|
} PyModuleObject;
|
|
|
|
static inline PyModuleDef* _PyModule_GetDef(PyObject *mod) {
|
|
assert(PyModule_Check(mod));
|
|
return ((PyModuleObject *)mod)->md_def;
|
|
}
|
|
|
|
static inline void* _PyModule_GetState(PyObject* mod) {
|
|
assert(PyModule_Check(mod));
|
|
return ((PyModuleObject *)mod)->md_state;
|
|
}
|
|
|
|
static inline PyObject* _PyModule_GetDict(PyObject *mod) {
|
|
assert(PyModule_Check(mod));
|
|
PyObject *dict = ((PyModuleObject *)mod) -> md_dict;
|
|
// _PyModule_GetDict(mod) must not be used after calling module_clear(mod)
|
|
assert(dict != NULL);
|
|
return dict; // borrowed reference
|
|
}
|
|
|
|
PyObject* _Py_module_getattro_impl(PyModuleObject *m, PyObject *name, int suppress);
|
|
PyObject* _Py_module_getattro(PyModuleObject *m, PyObject *name);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_INTERNAL_MODULEOBJECT_H */
|