pypia.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 PYPIA_H
#define PYPIA_H
#include "Python.h"
#include "ravepia.h"

typedef struct {
  PyObject_HEAD /*Always has to be on top*/
  RavePIA_t* pia; 
} PyPia;
 
#define PyPia_Type_NUM 0                   
 
#define PyPia_GetNative_NUM 1              
#define PyPia_GetNative_RETURN RavePIA_t* 
#define PyPia_GetNative_PROTO (PyPia*)    
 
#define PyPia_New_NUM 2                    
#define PyPia_New_RETURN PyPia*           
#define PyPia_New_PROTO (RavePIA_t*)      
 
#define PyPia_API_pointers 3               
 
#define PyPia_CAPSULE_NAME "_pia._C_API"
 
 
#ifdef PYPIA_MODULE
extern PyTypeObject PyPia_Type;

#define PyPia_Check(op) ((op)->ob_type == &PyPia_Type)

static PyPia_GetNative_RETURN PyPia_GetNative PyPia_GetNative_PROTO;

static PyPia_New_RETURN PyPia_New PyPia_New_PROTO;
 
#else
static void **PyPia_API;

#define PyPia_GetNative \
  (*(PyPia_GetNative_RETURN (*)PyPia_GetNative_PROTO) PyPia_API[PyPia_GetNative_NUM])

#define PyPia_New \
  (*(PyPia_New_RETURN (*)PyPia_New_PROTO) PyPia_API[PyPia_New_NUM])

#define PyPia_Check(op) \
   (Py_TYPE(op) == &PyPia_Type)
 
#define PyPia_Type (*(PyTypeObject*)PyPia_API[PyPia_Type_NUM])

#define import_pia() \
    PyPia_API = (void **)PyCapsule_Import(PyPia_CAPSULE_NAME, 1);
 
#endif
 
#endif /* PYPIA_H */