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/*
Unix SMB/CIFS implementation.
Python 3 compatibility macros
Copyright (C) Petr Viktorin <pviktori@redhat.com> 2015
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SAMBA_PY3COMPAT_H_
#define _SAMBA_PY3COMPAT_H_
#include <Python.h>
/* Quick docs:
*
* The IS_PY3 preprocessor constant is 1 on Python 3, and 0 on Python 2.
*
* "PyStr_*" works like PyUnicode_* on Python 3, but uses bytestrings (str)
* under Python 2.
*
* "PyBytes_*" work like in Python 3; on Python 2 they are aliased to their
* PyString_* names.
*
* "PyInt_*" works like PyLong_*
*
* Syntax for module initialization is as in Python 3, except the entrypoint
* function definition and declaration:
* PyMODINIT_FUNC PyInit_modulename(void);
* PyMODINIT_FUNC PyInit_modulename(void)
* {
* ...
* }
* is replaced by:
* MODULE_INIT_FUNC(modulename)
* {
* ...
* }
*
* In the entrypoint, create a module using PyModule_Create and PyModuleDef,
* and return it. See Python 3 documentation for details.
* For Python 2 compatibility, always set PyModuleDef.m_size to -1.
*
*/
#if PY_MAJOR_VERSION >= 3
/***** Python 3 *****/
#define IS_PY3 1
/* Strings */
#define PyStr_Type PyUnicode_Type
#define PyStr_Check PyUnicode_Check
#define PyStr_CheckExact PyUnicode_CheckExact
#define PyStr_FromString PyUnicode_FromString
#define PyStr_FromStringAndSize PyUnicode_FromStringAndSize
#define PyStr_FromFormat PyUnicode_FromFormat
#define PyStr_FromFormatV PyUnicode_FromFormatV
#define PyStr_AsString PyUnicode_AsUTF8
#define PyStr_Concat PyUnicode_Concat
#define PyStr_Format PyUnicode_Format
#define PyStr_InternInPlace PyUnicode_InternInPlace
#define PyStr_InternFromString PyUnicode_InternFromString
#define PyStr_Decode PyUnicode_Decode
#define PyStr_AsUTF8String PyUnicode_AsUTF8String // returns PyBytes
#define PyStr_AsUTF8 PyUnicode_AsUTF8
#define PyStr_AsUTF8AndSize PyUnicode_AsUTF8AndSize
/* description of bytes and string objects */
#define PY_DESC_PY3_BYTES "bytes"
#define PY_DESC_PY3_STRING "string"
/* Determine if object is really bytes, for code that runs
* in python2 & python3 (note: PyBytes_Check is replaced by
* PyString_Check in python2) so care needs to be taken when
* writing code that will check if incoming type is bytes that
* will work as expected in python2 & python3
*/
#define IsPy3Bytes PyBytes_Check
#define IsPy3BytesOrString(pystr) \
(PyStr_Check(pystr) || PyBytes_Check(pystr))
/* Ints */
#define PyInt_Type PyLong_Type
#define PyInt_Check PyLong_Check
#define PyInt_CheckExact PyLong_CheckExact
#define PyInt_FromString PyLong_FromString
#define PyInt_FromLong PyLong_FromLong
#define PyInt_FromSsize_t PyLong_FromSsize_t
#define PyInt_FromSize_t PyLong_FromSize_t
#define PyInt_AsLong PyLong_AsLong
#define PyInt_AS_LONG PyLong_AS_LONG
#define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
#define PyInt_AsSsize_t PyLong_AsSsize_t
/* Module init */
#define MODULE_INIT_FUNC(name) \
PyMODINIT_FUNC PyInit_ ## name(void); \
PyMODINIT_FUNC PyInit_ ## name(void)
/* PyArg_ParseTuple/Py_BuildValue argument */
#define PYARG_BYTES_LEN "y#"
#else
/***** Python 2 *****/
#define IS_PY3 0
/* Strings */
#define PyStr_Type PyString_Type
#define PyStr_Check PyString_Check
#define PyStr_CheckExact PyString_CheckExact
#define PyStr_FromString PyString_FromString
#define PyStr_FromStringAndSize PyString_FromStringAndSize
#define PyStr_FromFormat PyString_FromFormat
#define PyStr_FromFormatV PyString_FromFormatV
#define PyStr_AsString PyString_AsString
#define PyStr_Format PyString_Format
#define PyStr_InternInPlace PyString_InternInPlace
#define PyStr_InternFromString PyString_InternFromString
#define PyStr_Decode PyString_Decode
#define PyStr_AsUTF8String(str) (Py_INCREF(str), (str))
#define PyStr_AsUTF8 PyString_AsString
#define PyStr_AsUTF8AndSize(pystr, sizeptr) \
((*sizeptr=PyString_Size(pystr)), PyString_AsString(pystr))
#define PyBytes_Type PyString_Type
#define PyBytes_Check PyString_Check
#define PyBytes_CheckExact PyString_CheckExact
#define PyBytes_FromString PyString_FromString
#define PyBytes_FromStringAndSize PyString_FromStringAndSize
#define PyBytes_FromFormat PyString_FromFormat
#define PyBytes_FromFormatV PyString_FromFormatV
#define PyBytes_Size PyString_Size
#define PyBytes_GET_SIZE PyString_GET_SIZE
#define PyBytes_AsString PyString_AsString
#define PyBytes_AS_STRING PyString_AS_STRING
#define PyBytes_AsStringAndSize PyString_AsStringAndSize
#define PyBytes_Concat PyString_Concat
#define PyBytes_ConcatAndDel PyString_ConcatAndDel
#define _PyBytes_Resize _PyString_Resize
/* description of bytes and string objects */
#define PY_DESC_PY3_BYTES "string"
#define PY_DESC_PY3_STRING "unicode"
/* Determine if object is really bytes, for code that runs
* in python2 & python3 (note: PyBytes_Check is replaced by
* PyString_Check in python2) so care needs to be taken when
* writing code that will check if incoming type is bytes that
* will work as expected in python2 & python3
*/
#define IsPy3Bytes(pystr) false
#define IsPy3BytesOrString PyStr_Check
/* PyArg_ParseTuple/Py_BuildValue argument */
#define PYARG_BYTES_LEN "s#"
/* Module init */
#define PyModuleDef_HEAD_INIT 0
typedef struct PyModuleDef {
int m_base;
const char* m_name;
const char* m_doc;
Py_ssize_t m_size;
PyMethodDef *m_methods;
} PyModuleDef;
#define PyModule_Create(def) \
Py_InitModule3((def)->m_name, (def)->m_methods, (def)->m_doc)
#define MODULE_INIT_FUNC(name) \
static PyObject *PyInit_ ## name(void); \
void init ## name(void); \
void init ## name(void) { PyInit_ ## name(); } \
static PyObject *PyInit_ ## name(void)
#endif
#endif
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