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#ifndef Py_LIMITED_API #ifndef Py_INTERNAL_IMPORT_H #define Py_INTERNAL_IMPORT_H #ifdef __cplusplus extern "C" { #endif #include "pycore_hashtable.h" // _Py_hashtable_t #include "pycore_time.h" // _PyTime_t struct _import_runtime_state { /* The builtin modules (defined in config.c). */ struct _inittab *inittab; /* The most recent value assigned to a PyModuleDef.m_base.m_index. This is incremented each time PyModuleDef_Init() is called, which is just about every time an extension module is imported. See PyInterpreterState.modules_by_index for more info. */ Py_ssize_t last_module_index; struct { /* A lock to guard the cache. */ PyThread_type_lock mutex; /* The actual cache of (filename, name, PyModuleDef) for modules. Only legacy (single-phase init) extension modules are added and only if they support multiple initialization (m_size >- 0) or are imported in the main interpreter. This is initialized lazily in _PyImport_FixupExtensionObject(). Modules are added there and looked up in _imp.find_extension(). */ _Py_hashtable_t *hashtable; } extensions; /* Package context -- the full module name for package imports */ const char * pkgcontext; }; struct _import_state { /* cached sys.modules dictionary */ PyObject *modules; /* This is the list of module objects for all legacy (single-phase init) extension modules ever loaded in this process (i.e. imported in this interpreter or in any other). Py_None stands in for modules that haven't actually been imported in this interpreter. A module's index (PyModuleDef.m_base.m_index) is used to look up the corresponding module object for this interpreter, if any. (See PyState_FindModule().) When any extension module is initialized during import, its moduledef gets initialized by PyModuleDef_Init(), and the first time that happens for each PyModuleDef, its index gets set to the current value of a global counter (see _PyRuntimeState.imports.last_module_index). The entry for that index in this interpreter remains unset until the module is actually imported here. (Py_None is used as a placeholder.) Note that multi-phase init modules always get an index for which there will never be a module set. This is initialized lazily in PyState_AddModule(), which is also where modules get added. */ PyObject *modules_by_index; /* importlib module._bootstrap */ PyObject *importlib; /* override for config->use_frozen_modules (for tests) (-1: "off", 1: "on", 0: no override) */ int override_frozen_modules; int override_multi_interp_extensions_check; #ifdef HAVE_DLOPEN int dlopenflags; #endif PyObject *import_func; /* The global import lock. */ struct { PyThread_type_lock mutex; unsigned long thread; int level; } lock; /* diagnostic info in PyImport_ImportModuleLevelObject() */ struct { int import_level; _PyTime_t accumulated; int header; } find_and_load; }; #ifdef HAVE_DLOPEN # include <dlfcn.h> # if HAVE_DECL_RTLD_NOW # define _Py_DLOPEN_FLAGS RTLD_NOW # else # define _Py_DLOPEN_FLAGS RTLD_LAZY # endif # define DLOPENFLAGS_INIT .dlopenflags = _Py_DLOPEN_FLAGS, #else # define _Py_DLOPEN_FLAGS 0 # define DLOPENFLAGS_INIT #endif #define IMPORTS_INIT \ { \ DLOPENFLAGS_INIT \ .lock = { \ .mutex = NULL, \ .thread = PYTHREAD_INVALID_THREAD_ID, \ .level = 0, \ }, \ .find_and_load = { \ .header = 1, \ }, \ } extern void _PyImport_ClearCore(PyInterpreterState *interp); extern Py_ssize_t _PyImport_GetNextModuleIndex(void); extern const char * _PyImport_ResolveNameWithPackageContext(const char *name); extern const char * _PyImport_SwapPackageContext(const char *newcontext); extern int _PyImport_GetDLOpenFlags(PyInterpreterState *interp); extern void _PyImport_SetDLOpenFlags(PyInterpreterState *interp, int new_val); extern PyObject * _PyImport_InitModules(PyInterpreterState *interp); extern PyObject * _PyImport_GetModules(PyInterpreterState *interp); extern void _PyImport_ClearModules(PyInterpreterState *interp); extern void _PyImport_ClearModulesByIndex(PyInterpreterState *interp); extern int _PyImport_InitDefaultImportFunc(PyInterpreterState *interp); extern int _PyImport_IsDefaultImportFunc( PyInterpreterState *interp, PyObject *func); extern PyObject * _PyImport_GetImportlibLoader( PyInterpreterState *interp, const char *loader_name); extern PyObject * _PyImport_GetImportlibExternalLoader( PyInterpreterState *interp, const char *loader_name); extern PyObject * _PyImport_BlessMyLoader( PyInterpreterState *interp, PyObject *module_globals); extern PyObject * _PyImport_ImportlibModuleRepr( PyInterpreterState *interp, PyObject *module); extern PyStatus _PyImport_Init(void); extern void _PyImport_Fini(void); extern void _PyImport_Fini2(void); extern PyStatus _PyImport_InitCore( PyThreadState *tstate, PyObject *sysmod, int importlib); extern PyStatus _PyImport_InitExternal(PyThreadState *tstate); extern void _PyImport_FiniCore(PyInterpreterState *interp); extern void _PyImport_FiniExternal(PyInterpreterState *interp); #ifdef HAVE_FORK extern PyStatus _PyImport_ReInitLock(PyInterpreterState *interp); #endif extern PyObject* _PyImport_GetBuiltinModuleNames(void); struct _module_alias { const char *name; /* ASCII encoded string */ const char *orig; /* ASCII encoded string */ }; PyAPI_DATA(const struct _frozen *) _PyImport_FrozenBootstrap; PyAPI_DATA(const struct _frozen *) _PyImport_FrozenStdlib; PyAPI_DATA(const struct _frozen *) _PyImport_FrozenTest; extern const struct _module_alias * _PyImport_FrozenAliases; PyAPI_FUNC(int) _PyImport_CheckSubinterpIncompatibleExtensionAllowed( const char *name); // for testing PyAPI_FUNC(int) _PyImport_ClearExtension(PyObject *name, PyObject *filename); #ifdef __cplusplus } #endif #endif /* !Py_INTERNAL_IMPORT_H */ #endif /* !Py_LIMITED_API */
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