151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* plpython.h - Python as a procedural language for PostgreSQL
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*
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* Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/pl/plpython/plpython.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PLPYTHON_H
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#define PLPYTHON_H
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/*
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* Include order should be: postgres.h, other postgres headers, plpython.h,
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* other plpython headers
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*/
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#ifndef POSTGRES_H
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#error postgres.h must be included before plpython.h
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#endif
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/*
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* Undefine some things that get (re)defined in the Python headers. They aren't
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* used by the PL/Python code, and all PostgreSQL headers should be included
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* earlier, so this should be pretty safe.
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*/
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#undef _POSIX_C_SOURCE
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#undef _XOPEN_SOURCE
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#undef HAVE_STRERROR
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#undef HAVE_TZNAME
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/*
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* Sometimes python carefully scribbles on our *printf macros.
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* So we undefine them here and redefine them after it's done its dirty deed.
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*/
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#ifdef USE_REPL_SNPRINTF
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#undef snprintf
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#undef vsnprintf
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#endif
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#if defined(_MSC_VER) && defined(_DEBUG)
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/* Python uses #pragma to bring in a non-default libpython on VC++ if
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* _DEBUG is defined */
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#undef _DEBUG
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/* Also hide away errcode, since we load Python.h before postgres.h */
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#define errcode __msvc_errcode
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#include <Python.h>
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#undef errcode
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#define _DEBUG
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#elif defined (_MSC_VER)
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#define errcode __msvc_errcode
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#include <Python.h>
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#undef errcode
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#else
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#include <Python.h>
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#endif
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/*
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* Py_ssize_t compat for Python <= 2.4
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*/
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#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)
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typedef int Py_ssize_t;
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#define PY_SSIZE_T_MAX INT_MAX
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#define PY_SSIZE_T_MIN INT_MIN
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#endif
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/*
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* Python 2/3 strings/unicode/bytes handling. Python 2 has strings
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* and unicode, Python 3 has strings, which are unicode on the C
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* level, and bytes. The porting convention, which is similarly used
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* in Python 2.6, is that "Unicode" is always unicode, and "Bytes" are
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* bytes in Python 3 and strings in Python 2. Since we keep
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* supporting Python 2 and its usual strings, we provide a
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* compatibility layer for Python 3 that when asked to convert a C
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* string to a Python string it converts the C string from the
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* PostgreSQL server encoding to a Python Unicode object.
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*/
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#if PY_VERSION_HEX < 0x02060000
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/* This is exactly the compatibility layer that Python 2.6 uses. */
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#define PyBytes_AsString PyString_AsString
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#define PyBytes_FromStringAndSize PyString_FromStringAndSize
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#define PyBytes_Size PyString_Size
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#define PyObject_Bytes PyObject_Str
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#endif
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#if PY_MAJOR_VERSION >= 3
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#define PyString_Check(x) 0
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#define PyString_AsString(x) PLyUnicode_AsString(x)
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#define PyString_FromString(x) PLyUnicode_FromString(x)
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#define PyString_FromStringAndSize(x, size) PLyUnicode_FromStringAndSize(x, size)
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#endif
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/*
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* Python 3 only has long.
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*/
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#if PY_MAJOR_VERSION >= 3
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#define PyInt_FromLong(x) PyLong_FromLong(x)
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#define PyInt_AsLong(x) PyLong_AsLong(x)
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#endif
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/*
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* PyVarObject_HEAD_INIT was added in Python 2.6. Its use is
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* necessary to handle both Python 2 and 3. This replacement
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* definition is for Python <=2.5
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*/
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#ifndef PyVarObject_HEAD_INIT
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#define PyVarObject_HEAD_INIT(type, size) \
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PyObject_HEAD_INIT(type) size,
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#endif
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/* Python 3 removed the Py_TPFLAGS_HAVE_ITER flag */
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#if PY_MAJOR_VERSION >= 3
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#define Py_TPFLAGS_HAVE_ITER 0
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#endif
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/* define our text domain for translations */
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#undef TEXTDOMAIN
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#define TEXTDOMAIN PG_TEXTDOMAIN("plpython")
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#include <compile.h>
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#include <eval.h>
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/* put back our snprintf and vsnprintf */
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#ifdef USE_REPL_SNPRINTF
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#ifdef snprintf
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#undef snprintf
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#endif
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#ifdef vsnprintf
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#undef vsnprintf
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#endif
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#ifdef __GNUC__
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#define vsnprintf(...) pg_vsnprintf(__VA_ARGS__)
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#define snprintf(...) pg_snprintf(__VA_ARGS__)
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#else
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#define vsnprintf pg_vsnprintf
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#define snprintf pg_snprintf
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#endif /* __GNUC__ */
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#endif /* USE_REPL_SNPRINTF */
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/*
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* Used throughout, and also by the Python 2/3 porting layer, so it's easier to
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* just include it everywhere.
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*/
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#include "plpy_util.h"
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#endif /* PLPYTHON_H */
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