/*------------------------------------------------------------------------- * * plpython.h - Python as a procedural language for PostgreSQL * * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/pl/plpython/plpython.h * *------------------------------------------------------------------------- */ #ifndef PLPYTHON_H #define PLPYTHON_H /* * Include order should be: postgres.h, other postgres headers, plpython.h, * other plpython headers. (In practice, other plpython headers will also * include this file, so that they can compile standalone.) */ #ifndef POSTGRES_H #error postgres.h must be included before plpython.h #endif /* * Undefine some things that get (re)defined in the Python headers. They aren't * used by the PL/Python code, and all PostgreSQL headers should be included * earlier, so this should be pretty safe. */ #undef _POSIX_C_SOURCE #undef _XOPEN_SOURCE #undef HAVE_TZNAME /* * Sometimes python carefully scribbles on our *printf macros. * So we undefine them here and redefine them after it's done its dirty deed. */ #undef vsnprintf #undef snprintf #undef vsprintf #undef sprintf #undef vfprintf #undef fprintf #undef vprintf #undef printf #if defined(_MSC_VER) && defined(_DEBUG) /* Python uses #pragma to bring in a non-default libpython on VC++ if * _DEBUG is defined */ #undef _DEBUG /* Also hide away errcode, since we load Python.h before postgres.h */ #define errcode __msvc_errcode #include #undef errcode #define _DEBUG #elif defined (_MSC_VER) #define errcode __msvc_errcode #include #undef errcode #else #include #endif /* * Py_ssize_t compat for Python <= 2.4 */ #if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN) typedef int Py_ssize_t; #define PY_SSIZE_T_MAX INT_MAX #define PY_SSIZE_T_MIN INT_MIN #endif /* * Python 2/3 strings/unicode/bytes handling. Python 2 has strings * and unicode, Python 3 has strings, which are unicode on the C * level, and bytes. The porting convention, which is similarly used * in Python 2.6, is that "Unicode" is always unicode, and "Bytes" are * bytes in Python 3 and strings in Python 2. Since we keep * supporting Python 2 and its usual strings, we provide a * compatibility layer for Python 3 that when asked to convert a C * string to a Python string it converts the C string from the * PostgreSQL server encoding to a Python Unicode object. */ #if PY_VERSION_HEX < 0x02060000 /* This is exactly the compatibility layer that Python 2.6 uses. */ #define PyBytes_AsString PyString_AsString #define PyBytes_FromStringAndSize PyString_FromStringAndSize #define PyBytes_Size PyString_Size #define PyObject_Bytes PyObject_Str #endif #if PY_MAJOR_VERSION >= 3 #define PyString_Check(x) 0 #define PyString_AsString(x) PLyUnicode_AsString(x) #define PyString_FromString(x) PLyUnicode_FromString(x) #define PyString_FromStringAndSize(x, size) PLyUnicode_FromStringAndSize(x, size) #endif /* * Python 3 only has long. */ #if PY_MAJOR_VERSION >= 3 #define PyInt_FromLong(x) PyLong_FromLong(x) #define PyInt_AsLong(x) PyLong_AsLong(x) #endif /* * PyVarObject_HEAD_INIT was added in Python 2.6. Its use is * necessary to handle both Python 2 and 3. This replacement * definition is for Python <=2.5 */ #ifndef PyVarObject_HEAD_INIT #define PyVarObject_HEAD_INIT(type, size) \ PyObject_HEAD_INIT(type) size, #endif /* Python 3 removed the Py_TPFLAGS_HAVE_ITER flag */ #if PY_MAJOR_VERSION >= 3 #define Py_TPFLAGS_HAVE_ITER 0 #endif /* define our text domain for translations */ #undef TEXTDOMAIN #define TEXTDOMAIN PG_TEXTDOMAIN("plpython") #include #include /* put back our *printf macros ... this must match src/include/port.h */ #ifdef vsnprintf #undef vsnprintf #endif #ifdef snprintf #undef snprintf #endif #ifdef vsprintf #undef vsprintf #endif #ifdef sprintf #undef sprintf #endif #ifdef vfprintf #undef vfprintf #endif #ifdef fprintf #undef fprintf #endif #ifdef vprintf #undef vprintf #endif #ifdef printf #undef printf #endif #define vsnprintf pg_vsnprintf #define snprintf pg_snprintf #define vsprintf pg_vsprintf #define sprintf pg_sprintf #define vfprintf pg_vfprintf #define fprintf pg_fprintf #define vprintf pg_vprintf #define printf(...) pg_printf(__VA_ARGS__) /* * Used throughout, and also by the Python 2/3 porting layer, so it's easier to * just include it everywhere. */ #include "plpy_util.h" #endif /* PLPYTHON_H */