pycartesian.h

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/* --------------------------------------------------------------------
Copyright (C) 2009 Swedish Meteorological and Hydrological Institute, SMHI,
 
This file is part of RAVE.
 
RAVE is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
 
RAVE 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 Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License
along with RAVE.  If not, see <http://www.gnu.org/licenses/>.
------------------------------------------------------------------------*/
#ifndef PYCARTESIAN_H
#define PYCARTESIAN_H
#include "cartesian.h"
 
typedef struct {
  PyObject_HEAD /*Always has to be on top*/
  Cartesian_t* cartesian; 
} PyCartesian;
 
#define PyCartesian_Type_NUM 0                       
#define PyCartesian_GetNative_NUM 1                  
#define PyCartesian_GetNative_RETURN Cartesian_t*    
#define PyCartesian_GetNative_PROTO (PyCartesian*)   
#define PyCartesian_New_NUM 2                        
#define PyCartesian_New_RETURN PyCartesian*          
#define PyCartesian_New_PROTO (Cartesian_t*)         
#define PyCartesian_API_pointers 3                   
#define PyCartesian_CAPSULE_NAME "_cartesian._C_API"
 
#ifdef PYCARTESIAN_MODULE
extern PyTypeObject PyCartesian_Type;
 
#define PyCartesian_Check(op) ((op)->ob_type == &PyCartesian_Type)
 
static PyCartesian_GetNative_RETURN PyCartesian_GetNative PyCartesian_GetNative_PROTO;
 
static PyCartesian_New_RETURN PyCartesian_New PyCartesian_New_PROTO;
 
#else
static void **PyCartesian_API;
 
#define PyCartesian_GetNative \
  (*(PyCartesian_GetNative_RETURN (*)PyCartesian_GetNative_PROTO) PyCartesian_API[PyCartesian_GetNative_NUM])
 
#define PyCartesian_New \
  (*(PyCartesian_New_RETURN (*)PyCartesian_New_PROTO) PyCartesian_API[PyCartesian_New_NUM])
 
#define PyCartesian_Check(op) \
   (Py_TYPE(op) == &PyCartesian_Type)
 
#define PyCartesian_Type (*(PyTypeObject*)PyCartesian_API[PyCartesian_Type_NUM])
 
#define import_pycartesian() \
    PyCartesian_API = (void **)PyCapsule_Import(PyCartesian_CAPSULE_NAME, 1);
 
#ifdef KALLE
 
#define PyCartesian_Check(op) \
   ((op)->ob_type == (PyTypeObject *)PyCartesian_API[PyCartesian_Type_NUM])
 
static int
import_pycartesian(void)
{
  PyObject *module;
  PyObject *c_api_object;
 
  module = PyImport_ImportModule("_cartesian");
  if (module == NULL) {
    return -1;
  }
 
  c_api_object = PyObject_GetAttrString(module, "_C_API");
  if (c_api_object == NULL) {
    Py_DECREF(module);
    return -1;
  }
#if PY_MAJOR_VERSION < 3
  PyCartesian_API = (void **)PyCObject_AsVoidPtr(c_api_object);
#else
  PyCartesian_API = (void **)PyCapsule_New((void *)c_api_object, NULL, NULL);
#endif
/*
  if (PyCObject_Check(c_api_object)) {
    PyCartesian_API = (void **)PyCObject_AsVoidPtr(c_api_object);
  }
*/
  Py_DECREF(c_api_object);
  Py_DECREF(module);
  return 0;
}
#endif
 
 
#endif
 
#endif /* PYCARTESIAN_H */