cpython/Include/moduleobject.h
Eric Snow 44f57a952e
gh-117953: Split Up _PyImport_LoadDynamicModuleWithSpec() (gh-118203)
Basically, I've turned most of _PyImport_LoadDynamicModuleWithSpec() into two new functions (_PyImport_GetModInitFunc() and _PyImport_RunModInitFunc()) and moved the rest of it out into _imp_create_dynamic_impl().  There shouldn't be any changes in behavior.

This change makes some future changes simpler.  This is particularly relevant to potentially calling each module init function in the main interpreter first.  Thus the critical part of the PR is the addition of _PyImport_RunModInitFunc(), which is strictly focused on running the init func and validating the result.  A later PR will take it a step farther by capturing error information rather than raising exceptions.

FWIW, this change also helps readers by clarifying a bit more about what happens when an extension/builtin module is imported.
2024-04-29 09:29:07 -06:00

109 lines
3.2 KiB
C

/* Module object interface */
#ifndef Py_MODULEOBJECT_H
#define Py_MODULEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
PyAPI_DATA(PyTypeObject) PyModule_Type;
#define PyModule_Check(op) PyObject_TypeCheck((op), &PyModule_Type)
#define PyModule_CheckExact(op) Py_IS_TYPE((op), &PyModule_Type)
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
PyAPI_FUNC(PyObject *) PyModule_NewObject(
PyObject *name
);
#endif
PyAPI_FUNC(PyObject *) PyModule_New(
const char *name /* UTF-8 encoded string */
);
PyAPI_FUNC(PyObject *) PyModule_GetDict(PyObject *);
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
PyAPI_FUNC(PyObject *) PyModule_GetNameObject(PyObject *);
#endif
PyAPI_FUNC(const char *) PyModule_GetName(PyObject *);
Py_DEPRECATED(3.2) PyAPI_FUNC(const char *) PyModule_GetFilename(PyObject *);
PyAPI_FUNC(PyObject *) PyModule_GetFilenameObject(PyObject *);
PyAPI_FUNC(PyModuleDef*) PyModule_GetDef(PyObject*);
PyAPI_FUNC(void*) PyModule_GetState(PyObject*);
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000
/* New in 3.5 */
PyAPI_FUNC(PyObject *) PyModuleDef_Init(PyModuleDef*);
PyAPI_DATA(PyTypeObject) PyModuleDef_Type;
#endif
typedef struct PyModuleDef_Base {
PyObject_HEAD
/* The function used to re-initialize the module.
This is only set for legacy (single-phase init) extension modules
and only used for those that support multiple initializations
(m_size >= 0).
It is set by _PyImport_LoadDynamicModuleWithSpec()
and _imp.create_builtin(). */
PyObject* (*m_init)(void);
/* The module's index into its interpreter's modules_by_index cache.
This is set for all extension modules but only used for legacy ones.
(See PyInterpreterState.modules_by_index for more info.)
It is set by PyModuleDef_Init(). */
Py_ssize_t m_index;
/* A copy of the module's __dict__ after the first time it was loaded.
This is only set/used for legacy modules that do not support
multiple initializations.
It is set by fix_up_extension() in import.c. */
PyObject* m_copy;
} PyModuleDef_Base;
#define PyModuleDef_HEAD_INIT { \
PyObject_HEAD_INIT(_Py_NULL) \
_Py_NULL, /* m_init */ \
0, /* m_index */ \
_Py_NULL, /* m_copy */ \
}
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000
/* New in 3.5 */
struct PyModuleDef_Slot {
int slot;
void *value;
};
#define Py_mod_create 1
#define Py_mod_exec 2
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030c0000
# define Py_mod_multiple_interpreters 3
#endif
#ifndef Py_LIMITED_API
#define _Py_mod_LAST_SLOT 3
#endif
#endif /* New in 3.5 */
/* for Py_mod_multiple_interpreters: */
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030c0000
# define Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED ((void *)0)
# define Py_MOD_MULTIPLE_INTERPRETERS_SUPPORTED ((void *)1)
# define Py_MOD_PER_INTERPRETER_GIL_SUPPORTED ((void *)2)
#endif
struct PyModuleDef {
PyModuleDef_Base m_base;
const char* m_name;
const char* m_doc;
Py_ssize_t m_size;
PyMethodDef *m_methods;
PyModuleDef_Slot *m_slots;
traverseproc m_traverse;
inquiry m_clear;
freefunc m_free;
};
#ifdef __cplusplus
}
#endif
#endif /* !Py_MODULEOBJECT_H */