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Filename :
greenlet_cpython_compat.hpp
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/* -*- indent-tabs-mode: nil; tab-width: 4; -*- */ #ifndef GREENLET_CPYTHON_COMPAT_H #define GREENLET_CPYTHON_COMPAT_H /** * Helpers for compatibility with multiple versions of CPython. */ #define PY_SSIZE_T_CLEAN #include "Python.h" #if PY_VERSION_HEX >= 0x30A00B1 # define GREENLET_PY310 1 #else # define GREENLET_PY310 0 #endif /* Python 3.10 beta 1 changed tstate->use_tracing to a nested cframe member. See https://github.com/python/cpython/pull/25276 We have to save and restore this as well. Python 3.13 removed PyThreadState.cframe (GH-108035). */ #if GREENLET_PY310 && PY_VERSION_HEX < 0x30D0000 # define GREENLET_USE_CFRAME 1 #else # define GREENLET_USE_CFRAME 0 #endif #if PY_VERSION_HEX >= 0x30B00A4 /* Greenlet won't compile on anything older than Python 3.11 alpha 4 (see https://bugs.python.org/issue46090). Summary of breaking internal changes: - Python 3.11 alpha 1 changed how frame objects are represented internally. - https://github.com/python/cpython/pull/30122 - Python 3.11 alpha 3 changed how recursion limits are stored. - https://github.com/python/cpython/pull/29524 - Python 3.11 alpha 4 changed how exception state is stored. It also includes a change to help greenlet save and restore the interpreter frame "data stack". - https://github.com/python/cpython/pull/30122 - https://github.com/python/cpython/pull/30234 */ # define GREENLET_PY311 1 #else # define GREENLET_PY311 0 #endif #if PY_VERSION_HEX >= 0x30C0000 # define GREENLET_PY312 1 #else # define GREENLET_PY312 0 #endif #if PY_VERSION_HEX >= 0x30D0000 # define GREENLET_PY313 1 #else # define GREENLET_PY313 0 #endif #ifndef Py_SET_REFCNT /* Py_REFCNT and Py_SIZE macros are converted to functions https://bugs.python.org/issue39573 */ # define Py_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt) #endif #ifndef _Py_DEC_REFTOTAL /* _Py_DEC_REFTOTAL macro has been removed from Python 3.9 by: https://github.com/python/cpython/commit/49932fec62c616ec88da52642339d83ae719e924 The symbol we use to replace it was removed by at least 3.12. */ # ifdef Py_REF_DEBUG # if GREENLET_PY312 # define _Py_DEC_REFTOTAL # else # define _Py_DEC_REFTOTAL _Py_RefTotal-- # endif # else # define _Py_DEC_REFTOTAL # endif #endif // Define these flags like Cython does if we're on an old version. #ifndef Py_TPFLAGS_CHECKTYPES #define Py_TPFLAGS_CHECKTYPES 0 #endif #ifndef Py_TPFLAGS_HAVE_INDEX #define Py_TPFLAGS_HAVE_INDEX 0 #endif #ifndef Py_TPFLAGS_HAVE_NEWBUFFER #define Py_TPFLAGS_HAVE_NEWBUFFER 0 #endif #ifndef Py_TPFLAGS_HAVE_VERSION_TAG #define Py_TPFLAGS_HAVE_VERSION_TAG 0 #endif #define G_TPFLAGS_DEFAULT Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_VERSION_TAG | Py_TPFLAGS_CHECKTYPES | Py_TPFLAGS_HAVE_NEWBUFFER | Py_TPFLAGS_HAVE_GC #if PY_VERSION_HEX < 0x03090000 // The official version only became available in 3.9 # define PyObject_GC_IsTracked(o) _PyObject_GC_IS_TRACKED(o) #endif // bpo-43760 added PyThreadState_EnterTracing() to Python 3.11.0a2 #if PY_VERSION_HEX < 0x030B00A2 && !defined(PYPY_VERSION) static inline void PyThreadState_EnterTracing(PyThreadState *tstate) { tstate->tracing++; #if PY_VERSION_HEX >= 0x030A00A1 tstate->cframe->use_tracing = 0; #else tstate->use_tracing = 0; #endif } #endif // bpo-43760 added PyThreadState_LeaveTracing() to Python 3.11.0a2 #if PY_VERSION_HEX < 0x030B00A2 && !defined(PYPY_VERSION) static inline void PyThreadState_LeaveTracing(PyThreadState *tstate) { tstate->tracing--; int use_tracing = (tstate->c_tracefunc != NULL || tstate->c_profilefunc != NULL); #if PY_VERSION_HEX >= 0x030A00A1 tstate->cframe->use_tracing = use_tracing; #else tstate->use_tracing = use_tracing; #endif } #endif #if !defined(Py_C_RECURSION_LIMIT) && defined(C_RECURSION_LIMIT) # define Py_C_RECURSION_LIMIT C_RECURSION_LIMIT #endif #endif /* GREENLET_CPYTHON_COMPAT_H */