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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 */