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| -rw-r--r-- | python/py3compat.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/python/py3compat.h b/python/py3compat.h new file mode 100644 index 00000000000..c7724c95748 --- /dev/null +++ b/python/py3compat.h @@ -0,0 +1,167 @@ +/* + 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 + +/* 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) + +#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 + +/* 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 |