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cffi
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Filename :
_cffi_include.h
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#define _CFFI_ /* We try to define Py_LIMITED_API before including Python.h. Mess: we can only define it if Py_DEBUG, Py_TRACE_REFS and Py_REF_DEBUG are not defined. This is a best-effort approximation: we can learn about Py_DEBUG from pyconfig.h, but it is unclear if the same works for the other two macros. Py_DEBUG implies them, but not the other way around. Issue #350 is still open: on Windows, the code here causes it to link with PYTHON36.DLL (for example) instead of PYTHON3.DLL. A fix was attempted in 164e526a5515 and 14ce6985e1c3, but reverted: virtualenv does not make PYTHON3.DLL available, and so the "correctly" compiled version would not run inside a virtualenv. We will re-apply the fix after virtualenv has been fixed for some time. For explanation, see issue #355. For a workaround if you want PYTHON3.DLL and don't worry about virtualenv, see issue #350. See also 'py_limited_api' in setuptools_ext.py. */ #if !defined(_CFFI_USE_EMBEDDING) && !defined(Py_LIMITED_API) # include <pyconfig.h> # if !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG) # define Py_LIMITED_API # endif #endif #include <Python.h> #ifdef __cplusplus extern "C" { #endif #include <stddef.h> #include "parse_c_type.h" /* this block of #ifs should be kept exactly identical between c/_cffi_backend.c, cffi/vengine_cpy.py, cffi/vengine_gen.py and cffi/_cffi_include.h */ #if defined(_MSC_VER) # include <malloc.h> /* for alloca() */ # if _MSC_VER < 1600 /* MSVC < 2010 */ typedef __int8 int8_t; typedef __int16 int16_t; typedef __int32 int32_t; typedef __int64 int64_t; typedef unsigned __int8 uint8_t; typedef unsigned __int16 uint16_t; typedef unsigned __int32 uint32_t; typedef unsigned __int64 uint64_t; typedef __int8 int_least8_t; typedef __int16 int_least16_t; typedef __int32 int_least32_t; typedef __int64 int_least64_t; typedef unsigned __int8 uint_least8_t; typedef unsigned __int16 uint_least16_t; typedef unsigned __int32 uint_least32_t; typedef unsigned __int64 uint_least64_t; typedef __int8 int_fast8_t; typedef __int16 int_fast16_t; typedef __int32 int_fast32_t; typedef __int64 int_fast64_t; typedef unsigned __int8 uint_fast8_t; typedef unsigned __int16 uint_fast16_t; typedef unsigned __int32 uint_fast32_t; typedef unsigned __int64 uint_fast64_t; typedef __int64 intmax_t; typedef unsigned __int64 uintmax_t; # else # include <stdint.h> # endif # if _MSC_VER < 1800 /* MSVC < 2013 */ # ifndef __cplusplus typedef unsigned char _Bool; # endif # endif #else # include <stdint.h> # if (defined (__SVR4) && defined (__sun)) || defined(_AIX) || defined(__hpux) # include <alloca.h> # endif #endif #ifdef __GNUC__ # define _CFFI_UNUSED_FN __attribute__((unused)) #else # define _CFFI_UNUSED_FN /* nothing */ #endif #ifdef __cplusplus # ifndef _Bool typedef bool _Bool; /* semi-hackish: C++ has no _Bool; bool is builtin */ # endif #endif /********** CPython-specific section **********/ #ifndef PYPY_VERSION #if PY_MAJOR_VERSION >= 3 # define PyInt_FromLong PyLong_FromLong #endif #define _cffi_from_c_double PyFloat_FromDouble #define _cffi_from_c_float PyFloat_FromDouble #define _cffi_from_c_long PyInt_FromLong #define _cffi_from_c_ulong PyLong_FromUnsignedLong #define _cffi_from_c_longlong PyLong_FromLongLong #define _cffi_from_c_ulonglong PyLong_FromUnsignedLongLong #define _cffi_from_c__Bool PyBool_FromLong #define _cffi_to_c_double PyFloat_AsDouble #define _cffi_to_c_float PyFloat_AsDouble #define _cffi_from_c_int(x, type) \ (((type)-1) > 0 ? /* unsigned */ \ (sizeof(type) < sizeof(long) ? \ PyInt_FromLong((long)x) : \ sizeof(type) == sizeof(long) ? \ PyLong_FromUnsignedLong((unsigned long)x) : \ PyLong_FromUnsignedLongLong((unsigned long long)x)) : \ (sizeof(type) <= sizeof(long) ? \ PyInt_FromLong((long)x) : \ PyLong_FromLongLong((long long)x))) #define _cffi_to_c_int(o, type) \ ((type)( \ sizeof(type) == 1 ? (((type)-1) > 0 ? (type)_cffi_to_c_u8(o) \ : (type)_cffi_to_c_i8(o)) : \ sizeof(type) == 2 ? (((type)-1) > 0 ? (type)_cffi_to_c_u16(o) \ : (type)_cffi_to_c_i16(o)) : \ sizeof(type) == 4 ? (((type)-1) > 0 ? (type)_cffi_to_c_u32(o) \ : (type)_cffi_to_c_i32(o)) : \ sizeof(type) == 8 ? (((type)-1) > 0 ? (type)_cffi_to_c_u64(o) \ : (type)_cffi_to_c_i64(o)) : \ (Py_FatalError("unsupported size for type " #type), (type)0))) #define _cffi_to_c_i8 \ ((int(*)(PyObject *))_cffi_exports[1]) #define _cffi_to_c_u8 \ ((int(*)(PyObject *))_cffi_exports[2]) #define _cffi_to_c_i16 \ ((int(*)(PyObject *))_cffi_exports[3]) #define _cffi_to_c_u16 \ ((int(*)(PyObject *))_cffi_exports[4]) #define _cffi_to_c_i32 \ ((int(*)(PyObject *))_cffi_exports[5]) #define _cffi_to_c_u32 \ ((unsigned int(*)(PyObject *))_cffi_exports[6]) #define _cffi_to_c_i64 \ ((long long(*)(PyObject *))_cffi_exports[7]) #define _cffi_to_c_u64 \ ((unsigned long long(*)(PyObject *))_cffi_exports[8]) #define _cffi_to_c_char \ ((int(*)(PyObject *))_cffi_exports[9]) #define _cffi_from_c_pointer \ ((PyObject *(*)(char *, struct _cffi_ctypedescr *))_cffi_exports[10]) #define _cffi_to_c_pointer \ ((char *(*)(PyObject *, struct _cffi_ctypedescr *))_cffi_exports[11]) #define _cffi_get_struct_layout \ not used any more #define _cffi_restore_errno \ ((void(*)(void))_cffi_exports[13]) #define _cffi_save_errno \ ((void(*)(void))_cffi_exports[14]) #define _cffi_from_c_char \ ((PyObject *(*)(char))_cffi_exports[15]) #define _cffi_from_c_deref \ ((PyObject *(*)(char *, struct _cffi_ctypedescr *))_cffi_exports[16]) #define _cffi_to_c \ ((int(*)(char *, struct _cffi_ctypedescr *, PyObject *))_cffi_exports[17]) #define _cffi_from_c_struct \ ((PyObject *(*)(char *, struct _cffi_ctypedescr *))_cffi_exports[18]) #define _cffi_to_c_wchar_t \ ((_cffi_wchar_t(*)(PyObject *))_cffi_exports[19]) #define _cffi_from_c_wchar_t \ ((PyObject *(*)(_cffi_wchar_t))_cffi_exports[20]) #define _cffi_to_c_long_double \ ((long double(*)(PyObject *))_cffi_exports[21]) #define _cffi_to_c__Bool \ ((_Bool(*)(PyObject *))_cffi_exports[22]) #define _cffi_prepare_pointer_call_argument \ ((Py_ssize_t(*)(struct _cffi_ctypedescr *, \ PyObject *, char **))_cffi_exports[23]) #define _cffi_convert_array_from_object \ ((int(*)(char *, struct _cffi_ctypedescr *, PyObject *))_cffi_exports[24]) #define _CFFI_CPIDX 25 #define _cffi_call_python \ ((void(*)(struct _cffi_externpy_s *, char *))_cffi_exports[_CFFI_CPIDX]) #define _cffi_to_c_wchar3216_t \ ((int(*)(PyObject *))_cffi_exports[26]) #define _cffi_from_c_wchar3216_t \ ((PyObject *(*)(int))_cffi_exports[27]) #define _CFFI_NUM_EXPORTS 28 struct _cffi_ctypedescr; static void *_cffi_exports[_CFFI_NUM_EXPORTS]; #define _cffi_type(index) ( \ assert((((uintptr_t)_cffi_types[index]) & 1) == 0), \ (struct _cffi_ctypedescr *)_cffi_types[index]) static PyObject *_cffi_init(const char *module_name, Py_ssize_t version, const struct _cffi_type_context_s *ctx) { PyObject *module, *o_arg, *new_module; void *raw[] = { (void *)module_name, (void *)version, (void *)_cffi_exports, (void *)ctx, }; module = PyImport_ImportModule("_cffi_backend"); if (module == NULL) goto failure; o_arg = PyLong_FromVoidPtr((void *)raw); if (o_arg == NULL) goto failure; new_module = PyObject_CallMethod( module, (char *)"_init_cffi_1_0_external_module", (char *)"O", o_arg); Py_DECREF(o_arg); Py_DECREF(module); return new_module; failure: Py_XDECREF(module); return NULL; } #ifdef HAVE_WCHAR_H typedef wchar_t _cffi_wchar_t; #else typedef uint16_t _cffi_wchar_t; /* same random pick as _cffi_backend.c */ #endif _CFFI_UNUSED_FN static uint16_t _cffi_to_c_char16_t(PyObject *o) { if (sizeof(_cffi_wchar_t) == 2) return (uint16_t)_cffi_to_c_wchar_t(o); else return (uint16_t)_cffi_to_c_wchar3216_t(o); } _CFFI_UNUSED_FN static PyObject *_cffi_from_c_char16_t(uint16_t x) { if (sizeof(_cffi_wchar_t) == 2) return _cffi_from_c_wchar_t((_cffi_wchar_t)x); else return _cffi_from_c_wchar3216_t((int)x); } _CFFI_UNUSED_FN static int _cffi_to_c_char32_t(PyObject *o) { if (sizeof(_cffi_wchar_t) == 4) return (int)_cffi_to_c_wchar_t(o); else return (int)_cffi_to_c_wchar3216_t(o); } _CFFI_UNUSED_FN static PyObject *_cffi_from_c_char32_t(unsigned int x) { if (sizeof(_cffi_wchar_t) == 4) return _cffi_from_c_wchar_t((_cffi_wchar_t)x); else return _cffi_from_c_wchar3216_t((int)x); } union _cffi_union_alignment_u { unsigned char m_char; unsigned short m_short; unsigned int m_int; unsigned long m_long; unsigned long long m_longlong; float m_float; double m_double; long double m_longdouble; }; struct _cffi_freeme_s { struct _cffi_freeme_s *next; union _cffi_union_alignment_u alignment; }; _CFFI_UNUSED_FN static int _cffi_convert_array_argument(struct _cffi_ctypedescr *ctptr, PyObject *arg, char **output_data, Py_ssize_t datasize, struct _cffi_freeme_s **freeme) { char *p; if (datasize < 0) return -1; p = *output_data; if (p == NULL) { struct _cffi_freeme_s *fp = (struct _cffi_freeme_s *)PyObject_Malloc( offsetof(struct _cffi_freeme_s, alignment) + (size_t)datasize); if (fp == NULL) return -1; fp->next = *freeme; *freeme = fp; p = *output_data = (char *)&fp->alignment; } memset((void *)p, 0, (size_t)datasize); return _cffi_convert_array_from_object(p, ctptr, arg); } _CFFI_UNUSED_FN static void _cffi_free_array_arguments(struct _cffi_freeme_s *freeme) { do { void *p = (void *)freeme; freeme = freeme->next; PyObject_Free(p); } while (freeme != NULL); } /********** end CPython-specific section **********/ #else _CFFI_UNUSED_FN static void (*_cffi_call_python_org)(struct _cffi_externpy_s *, char *); # define _cffi_call_python _cffi_call_python_org #endif #define _cffi_array_len(array) (sizeof(array) / sizeof((array)[0])) #define _cffi_prim_int(size, sign) \ ((size) == 1 ? ((sign) ? _CFFI_PRIM_INT8 : _CFFI_PRIM_UINT8) : \ (size) == 2 ? ((sign) ? _CFFI_PRIM_INT16 : _CFFI_PRIM_UINT16) : \ (size) == 4 ? ((sign) ? _CFFI_PRIM_INT32 : _CFFI_PRIM_UINT32) : \ (size) == 8 ? ((sign) ? _CFFI_PRIM_INT64 : _CFFI_PRIM_UINT64) : \ _CFFI__UNKNOWN_PRIM) #define _cffi_prim_float(size) \ ((size) == sizeof(float) ? _CFFI_PRIM_FLOAT : \ (size) == sizeof(double) ? _CFFI_PRIM_DOUBLE : \ (size) == sizeof(long double) ? _CFFI__UNKNOWN_LONG_DOUBLE : \ _CFFI__UNKNOWN_FLOAT_PRIM) #define _cffi_check_int(got, got_nonpos, expected) \ ((got_nonpos) == (expected <= 0) && \ (got) == (unsigned long long)expected) #ifdef MS_WIN32 # define _cffi_stdcall __stdcall #else # define _cffi_stdcall /* nothing */ #endif #ifdef __cplusplus } #endif