pyfileobject.h

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/* --------------------------------------------------------------------
Copyright (C) 2025 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 PYFILEOBJECT_H
#define PYFILEOBJECT_H
#include "Python.h"
#include "file_object.h"

typedef struct {
  PyObject_HEAD /*Always has to be on top*/
  FileObject_t* fobj; 
} PyFileObject;
 
#define PyFileObject_Type_NUM 0                   
 
#define PyFileObject_GetNative_NUM 1              
#define PyFileObject_GetNative_RETURN FileObject_t* 
#define PyFileObject_GetNative_PROTO (PyFileObject*)    
 
#define PyFileObject_New_NUM 2                    
#define PyFileObject_New_RETURN PyFileObject*           
#define PyFileObject_New_PROTO (FileObject_t*)      
 
#define PyFileObject_API_pointers 3               
 
#define PyFileObject_CAPSULE_NAME "_fileobject._C_API"
 
 
#ifdef PYFILEOBJECT_MODULE
extern PyTypeObject PyFileObject_Type;

#define PyFileObject_Check(op) ((op)->ob_type == &PyFileObject_Type)

static PyFileObject_GetNative_RETURN PyFileObject_GetNative PyFileObject_GetNative_PROTO;

static PyFileObject_New_RETURN PyFileObject_New PyFileObject_New_PROTO;
 
#else
static void **PyFileObject_API;

#define PyFileObject_GetNative \
  (*(PyFileObject_GetNative_RETURN (*)PyFileObject_GetNative_PROTO) PyFileObject_API[PyFileObject_GetNative_NUM])

#define PyFileObject_New \
  (*(PyFileObject_New_RETURN (*)PyFileObject_New_PROTO) PyFileObject_API[PyFileObject_New_NUM])

#define PyFileObject_Check(op) \
   (Py_TYPE(op) == &PyFileObject_Type)
 
#define PyFileObject_Type (*(PyTypeObject*)PyFileObject_API[PyFileObject_Type_NUM])

#define import_fileobject() \
    PyFileObject_API = (void **)PyCapsule_Import(PyFileObject_CAPSULE_NAME, 1);
 
#endif
 
#endif /* PYFILEOBJECT_H */