pygra.h

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/* --------------------------------------------------------------------
Copyright (C) 2014 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 PYGRA_H
#define PYGRA_H
#include "Python.h"
#include "rave_gra.h"
 
typedef struct {
  PyObject_HEAD /*Always has to be on top*/
  RaveGra_t* gra; 
} PyGra;
 
#define PyGra_Type_NUM 0                   
#define PyGra_GetNative_NUM 1              
#define PyGra_GetNative_RETURN RaveGra_t* 
#define PyGra_GetNative_PROTO (PyGra*)    
#define PyGra_New_NUM 2                    
#define PyGra_New_RETURN PyGra*           
#define PyGra_New_PROTO (RaveGra_t*)      
#define PyGra_API_pointers 3               
#define PyGra_CAPSULE_NAME "_gra._C_API"
 
 
#ifdef PYGRA_MODULE
extern PyTypeObject PyGra_Type;
 
#define PyGra_Check(op) ((op)->ob_type == &PyGra_Type)
 
static PyGra_GetNative_RETURN PyGra_GetNative PyGra_GetNative_PROTO;
 
static PyGra_New_RETURN PyGra_New PyGra_New_PROTO;
 
#else
static void **PyGra_API;
 
#define PyGra_GetNative \
  (*(PyGra_GetNative_RETURN (*)PyGra_GetNative_PROTO) PyGra_API[PyGra_GetNative_NUM])
 
#define PyGra_New \
  (*(PyGra_New_RETURN (*)PyGra_New_PROTO) PyGra_API[PyGra_New_NUM])
 
#define PyGra_Check(op) \
   (Py_TYPE(op) == &PyGra_Type)
 
#define PyGra_Type (*(PyTypeObject*)PyGra_API[PyGra_Type_NUM])
 
#define import_gra() \
    PyGra_API = (void **)PyCapsule_Import(PyGra_CAPSULE_NAME, 1);
 
#endif
 
#endif /* PYGRA_H */