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#ifndef Py_INTERNAL_RUNTIME_H #define Py_INTERNAL_RUNTIME_H #ifdef __cplusplus extern "C" { #endif #ifndef Py_BUILD_CORE # error "this header requires Py_BUILD_CORE define" #endif #include "pycore_atexit.h" // struct atexit_runtime_state #include "pycore_atomic.h" /* _Py_atomic_address */ #include "pycore_ceval_state.h" // struct _ceval_runtime_state #include "pycore_floatobject.h" // struct _Py_float_runtime_state #include "pycore_faulthandler.h" // struct _faulthandler_runtime_state #include "pycore_global_objects.h" // struct _Py_global_objects #include "pycore_import.h" // struct _import_runtime_state #include "pycore_interp.h" // PyInterpreterState #include "pycore_object_state.h" // struct _py_object_runtime_state #include "pycore_parser.h" // struct _parser_runtime_state #include "pycore_pymem.h" // struct _pymem_allocators #include "pycore_pyhash.h" // struct pyhash_runtime_state #include "pycore_pythread.h" // struct _pythread_runtime_state #include "pycore_signal.h" // struct _signals_runtime_state #include "pycore_time.h" // struct _time_runtime_state #include "pycore_tracemalloc.h" // struct _tracemalloc_runtime_state #include "pycore_typeobject.h" // struct types_runtime_state #include "pycore_unicodeobject.h" // struct _Py_unicode_runtime_ids struct _getargs_runtime_state { PyThread_type_lock mutex; struct _PyArg_Parser *static_parsers; }; /* GIL state */ struct _gilstate_runtime_state { /* bpo-26558: Flag to disable PyGILState_Check(). If set to non-zero, PyGILState_Check() always return 1. */ int check_enabled; /* The single PyInterpreterState used by this process' GILState implementation */ /* TODO: Given interp_main, it may be possible to kill this ref */ PyInterpreterState *autoInterpreterState; }; /* Runtime audit hook state */ typedef struct _Py_AuditHookEntry { struct _Py_AuditHookEntry *next; Py_AuditHookFunction hookCFunction; void *userData; } _Py_AuditHookEntry; /* Full Python runtime state */ /* _PyRuntimeState holds the global state for the CPython runtime. That data is exposed in the internal API as a static variable (_PyRuntime). */ typedef struct pyruntimestate { /* Has been initialized to a safe state. In order to be effective, this must be set to 0 during or right after allocation. */ int _initialized; /* Is running Py_PreInitialize()? */ int preinitializing; /* Is Python preinitialized? Set to 1 by Py_PreInitialize() */ int preinitialized; /* Is Python core initialized? Set to 1 by _Py_InitializeCore() */ int core_initialized; /* Is Python fully initialized? Set to 1 by Py_Initialize() */ int initialized; /* Set by Py_FinalizeEx(). Only reset to NULL if Py_Initialize() is called again. Use _PyRuntimeState_GetFinalizing() and _PyRuntimeState_SetFinalizing() to access it, don't access it directly. */ _Py_atomic_address _finalizing; struct pyinterpreters { PyThread_type_lock mutex; /* The linked list of interpreters, newest first. */ PyInterpreterState *head; /* The runtime's initial interpreter, which has a special role in the operation of the runtime. It is also often the only interpreter. */ PyInterpreterState *main; /* next_id is an auto-numbered sequence of small integers. It gets initialized in _PyInterpreterState_Enable(), which is called in Py_Initialize(), and used in PyInterpreterState_New(). A negative interpreter ID indicates an error occurred. The main interpreter will always have an ID of 0. Overflow results in a RuntimeError. If that becomes a problem later then we can adjust, e.g. by using a Python int. */ int64_t next_id; } interpreters; unsigned long main_thread; /* ---------- IMPORTANT --------------------------- The fields above this line are declared as early as possible to facilitate out-of-process observability tools. */ // XXX Remove this field once we have a tp_* slot. struct _xidregistry xidregistry; struct _pymem_allocators allocators; struct _obmalloc_global_state obmalloc; struct pyhash_runtime_state pyhash_state; struct _time_runtime_state time; struct _pythread_runtime_state threads; struct _signals_runtime_state signals; /* Used for the thread state bound to the current thread. */ Py_tss_t autoTSSkey; /* Used instead of PyThreadState.trash when there is not current tstate. */ Py_tss_t trashTSSkey; PyWideStringList orig_argv; struct _parser_runtime_state parser; struct _atexit_runtime_state atexit; struct _import_runtime_state imports; struct _ceval_runtime_state ceval; struct _gilstate_runtime_state gilstate; struct _getargs_runtime_state getargs; struct _fileutils_state fileutils; struct _faulthandler_runtime_state faulthandler; struct _tracemalloc_runtime_state tracemalloc; PyPreConfig preconfig; // Audit values must be preserved when Py_Initialize()/Py_Finalize() // is called multiple times. Py_OpenCodeHookFunction open_code_hook; void *open_code_userdata; struct { PyThread_type_lock mutex; _Py_AuditHookEntry *head; } audit_hooks; struct _py_object_runtime_state object_state; struct _Py_float_runtime_state float_state; struct _Py_unicode_runtime_state unicode_state; struct _types_runtime_state types; /* All the objects that are shared by the runtime's interpreters. */ struct _Py_static_objects static_objects; struct _Py_cached_objects cached_objects; /* The ID of the OS thread in which we are finalizing. We use _Py_atomic_address instead of adding a new _Py_atomic_ulong. */ _Py_atomic_address _finalizing_id; /* The value to use for sys.path[0] in new subinterpreters. Normally this would be part of the PyConfig struct. However, we cannot add it there in 3.12 since that's an ABI change. */ wchar_t *sys_path_0; /* The following fields are here to avoid allocation during init. The data is exposed through _PyRuntimeState pointer fields. These fields should not be accessed directly outside of init. All other _PyRuntimeState pointer fields are populated when needed and default to NULL. For now there are some exceptions to that rule, which require allocation during init. These will be addressed on a case-by-case basis. Most notably, we don't pre-allocated the several mutex (PyThread_type_lock) fields, because on Windows we only ever get a pointer type. */ /* PyInterpreterState.interpreters.main */ PyInterpreterState _main_interpreter; } _PyRuntimeState; /* other API */ PyAPI_DATA(_PyRuntimeState) _PyRuntime; PyAPI_FUNC(PyStatus) _PyRuntimeState_Init(_PyRuntimeState *runtime); PyAPI_FUNC(void) _PyRuntimeState_Fini(_PyRuntimeState *runtime); #ifdef HAVE_FORK extern PyStatus _PyRuntimeState_ReInitThreads(_PyRuntimeState *runtime); #endif /* Initialize _PyRuntimeState. Return NULL on success, or return an error message on failure. */ PyAPI_FUNC(PyStatus) _PyRuntime_Initialize(void); PyAPI_FUNC(void) _PyRuntime_Finalize(void); static inline PyThreadState* _PyRuntimeState_GetFinalizing(_PyRuntimeState *runtime) { return (PyThreadState*)_Py_atomic_load_relaxed(&runtime->_finalizing); } static inline unsigned long _PyRuntimeState_GetFinalizingID(_PyRuntimeState *runtime) { return (unsigned long)_Py_atomic_load_relaxed(&runtime->_finalizing_id); } static inline void _PyRuntimeState_SetFinalizing(_PyRuntimeState *runtime, PyThreadState *tstate) { _Py_atomic_store_relaxed(&runtime->_finalizing, (uintptr_t)tstate); if (tstate == NULL) { _Py_atomic_store_relaxed(&runtime->_finalizing_id, 0); } else { // XXX Re-enable this assert once gh-109860 is fixed. //assert(tstate->thread_id == PyThread_get_thread_ident()); _Py_atomic_store_relaxed(&runtime->_finalizing_id, (uintptr_t)tstate->thread_id); } } #ifdef __cplusplus } #endif #endif /* !Py_INTERNAL_RUNTIME_H */
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