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Editing: pystate.h
/* Thread and interpreter state structures and their interfaces */ #ifndef Py_PYSTATE_H #define Py_PYSTATE_H #ifdef __cplusplus extern "C" { #endif /* This limitation is for performance and simplicity. If needed it can be removed (with effort). */ #define MAX_CO_EXTRA_USERS 255 /* Forward declarations for PyFrameObject, PyThreadState and PyInterpreterState */ struct _ts; struct _is; /* struct _ts is defined in cpython/pystate.h */ typedef struct _ts PyThreadState; /* struct _is is defined in internal/pycore_interp.h */ typedef struct _is PyInterpreterState; PyAPI_FUNC(PyInterpreterState *) PyInterpreterState_New(void); PyAPI_FUNC(void) PyInterpreterState_Clear(PyInterpreterState *); PyAPI_FUNC(void) PyInterpreterState_Delete(PyInterpreterState *); #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03090000 /* New in 3.9 */ /* Get the current interpreter state. Issue a fatal error if there no current Python thread state or no current interpreter. It cannot return NULL. The caller must hold the GIL. */ PyAPI_FUNC(PyInterpreterState *) PyInterpreterState_Get(void); #endif #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03080000 /* New in 3.8 */ PyAPI_FUNC(PyObject *) PyInterpreterState_GetDict(PyInterpreterState *); #endif #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03070000 /* New in 3.7 */ PyAPI_FUNC(int64_t) PyInterpreterState_GetID(PyInterpreterState *); #endif #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000 /* State unique per thread */ /* New in 3.3 */ PyAPI_FUNC(int) PyState_AddModule(PyObject*, struct PyModuleDef*); PyAPI_FUNC(int) PyState_RemoveModule(struct PyModuleDef*); #endif PyAPI_FUNC(PyObject*) PyState_FindModule(struct PyModuleDef*); PyAPI_FUNC(PyThreadState *) PyThreadState_New(PyInterpreterState *); PyAPI_FUNC(void) PyThreadState_Clear(PyThreadState *); PyAPI_FUNC(void) PyThreadState_Delete(PyThreadState *); /* Get the current thread state. When the current thread state is NULL, this issues a fatal error (so that the caller needn't check for NULL). The caller must hold the GIL. See also PyThreadState_GET() and _PyThreadState_GET(). */ PyAPI_FUNC(PyThreadState *) PyThreadState_Get(void); /* Get the current Python thread state. Macro using PyThreadState_Get() or _PyThreadState_GET() depending if pycore_pystate.h is included or not (this header redefines the macro). If PyThreadState_Get() is used, issue a fatal error if the current thread state is NULL. See also PyThreadState_Get() and _PyThreadState_GET(). */ #define PyThreadState_GET() PyThreadState_Get() PyAPI_FUNC(PyThreadState *) PyThreadState_Swap(PyThreadState *); PyAPI_FUNC(PyObject *) PyThreadState_GetDict(void); PyAPI_FUNC(int) PyThreadState_SetAsyncExc(unsigned long, PyObject *); #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03090000 /* New in 3.9 */ PyAPI_FUNC(PyInterpreterState*) PyThreadState_GetInterpreter(PyThreadState *tstate); PyAPI_FUNC(PyFrameObject*) PyThreadState_GetFrame(PyThreadState *tstate); PyAPI_FUNC(uint64_t) PyThreadState_GetID(PyThreadState *tstate); #endif typedef enum {PyGILState_LOCKED, PyGILState_UNLOCKED} PyGILState_STATE; /* Ensure that the current thread is ready to call the Python C API, regardless of the current state of Python, or of its thread lock. This may be called as many times as desired by a thread so long as each call is matched with a call to PyGILState_Release(). In general, other thread-state APIs may be used between _Ensure() and _Release() calls, so long as the thread-state is restored to its previous state before the Release(). For example, normal use of the Py_BEGIN_ALLOW_THREADS/ Py_END_ALLOW_THREADS macros are acceptable. The return value is an opaque "handle" to the thread state when PyGILState_Ensure() was called, and must be passed to PyGILState_Release() to ensure Python is left in the same state. Even though recursive calls are allowed, these handles can *not* be shared - each unique call to PyGILState_Ensure must save the handle for its call to PyGILState_Release. When the function returns, the current thread will hold the GIL. Failure is a fatal error. */ PyAPI_FUNC(PyGILState_STATE) PyGILState_Ensure(void); /* Release any resources previously acquired. After this call, Python's state will be the same as it was prior to the corresponding PyGILState_Ensure() call (but generally this state will be unknown to the caller, hence the use of the GILState API.) Every call to PyGILState_Ensure must be matched by a call to PyGILState_Release on the same thread. */ PyAPI_FUNC(void) PyGILState_Release(PyGILState_STATE); /* Helper/diagnostic function - get the current thread state for this thread. May return NULL if no GILState API has been used on the current thread. Note that the main thread always has such a thread-state, even if no auto-thread-state call has been made on the main thread. */ PyAPI_FUNC(PyThreadState *) PyGILState_GetThisThreadState(void); #ifndef Py_LIMITED_API # define Py_CPYTHON_PYSTATE_H # include "cpython/pystate.h" # undef Py_CPYTHON_PYSTATE_H #endif #ifdef __cplusplus } #endif #endif /* !Py_PYSTATE_H */
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