bpo-40268: Add pycore_rtstate.h header file by vstinner · Pull Request #19493 · python/cpython
/* ceval state */
struct _ceval_runtime_state { int recursion_limit; /* Request for dropping the GIL */ _Py_atomic_int gil_drop_request; /* Request for checking signals. */ _Py_atomic_int signals_pending; struct _gil_runtime_state gil; };
struct _ceval_state { /* Records whether tracing is on for any thread. Counts the number of threads for which tstate->c_tracefunc is non-NULL, so if the
/* runtime audit hook state */
typedef struct _Py_AuditHookEntry { struct _Py_AuditHookEntry *next; Py_AuditHookFunction hookCFunction; void *userData; } _Py_AuditHookEntry;
/* GIL state */
struct _gilstate_runtime_state { int check_enabled; /* Assuming the current thread holds the GIL, this is the PyThreadState for the current thread. */ _Py_atomic_address tstate_current; /* The single PyInterpreterState used by this process' GILState implementation */ /* TODO: Given interp_main, it may be possible to kill this ref */ PyInterpreterState *autoInterpreterState; Py_tss_t autoTSSkey; };
/* Issue #26558: Flag to disable PyGILState_Check(). If set to non-zero, PyGILState_Check() always return 1. */ #define _PyGILState_check_enabled _PyRuntime.gilstate.check_enabled
/* Full Python runtime state */
typedef struct pyruntimestate { /* 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; PyInterpreterState *head; PyInterpreterState *main; /* _next_interp_id is an auto-numbered sequence of small integers. It gets initialized in _PyInterpreterState_Init(), 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; // XXX Remove this field once we have a tp_* slot. struct _xidregistry { PyThread_type_lock mutex; struct _xidregitem *head; } xidregistry;
unsigned long main_thread;
#define NEXITFUNCS 32 void (*exitfuncs[NEXITFUNCS])(void); int nexitfuncs;
struct _ceval_runtime_state ceval; struct _gilstate_runtime_state gilstate;
PyPreConfig preconfig;
Py_OpenCodeHookFunction open_code_hook; void *open_code_userdata; _Py_AuditHookEntry *audit_hook_head;
// XXX Consolidate globals found via the check-c-globals script. } _PyRuntimeState;
#define _PyRuntimeState_INIT \ {.preinitialized = 0, .core_initialized = 0, .initialized = 0} /* Note: _PyRuntimeState_INIT sets other fields to 0/NULL */
PyAPI_DATA(_PyRuntimeState) _PyRuntime; PyAPI_FUNC(PyStatus) _PyRuntimeState_Init(_PyRuntimeState *runtime); PyAPI_FUNC(void) _PyRuntimeState_Fini(_PyRuntimeState *runtime); PyAPI_FUNC(void) _PyRuntimeState_ReInitThreads(_PyRuntimeState *runtime);
/* 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 void _PyRuntimeState_SetFinalizing(_PyRuntimeState *runtime, PyThreadState *tstate) { _Py_atomic_store_relaxed(&runtime->_finalizing, (uintptr_t)tstate); }
/* Check if the current thread is the main thread. Use _Py_IsMainInterpreter() to check if it's the main interpreter. */