rpnifs/python_ifs.h

/*
 * Copyright (C) 2020,2023 Weber Yann
 * 
 * This file is part of pyrpn.
 * 
 * pyrpn is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 * 
 * pyrpn 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with pyrpn.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _PYTHON_IFS_H__
#define _PYTHON_IFS_H__

#include "config.h"

#include <errno.h>

#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "structmember.h"

#include "rpn_if.h"
#include "rpn_if_default.h"
#include "rpn_ifs.h"
#include "python_rpnexpr.h"
#include "python_if.h"
#include "python_const.h"


/**@file python_ifs.h */

/** @brief RPNIFS Python class type definition */
extern PyTypeObject RPNIFSType;

/**@brief Points on Python's std mmap module */
extern PyObject *mmap_module;
/**@brief Python's mmap.mmap class */
extern PyObject *mmap_cls;

/** @brief Structure holding RPNIFS attributes */
typedef struct
{
	PyObject_VAR_HEAD;

	/** @brief Tuple with RPNIterExpr instances */
	PyObject *rpn_if;

	/** @brief Tuple with RPNExpr instances */
	PyObject *rpn_expr;

	/** @brief IFS pointer */
	rpn_ifs_t *ifs;

	/** @brief Pointer on IF expressions in the system */
	rpn_if_t **rifs;


	/**@brief Python mmap.mmap instance representing rif memory map 
	 * @note NULL if unpickled instance */
	PyObject *mmap;

	/**@brief Memory map buffer allowing acces to underlying pointer 
	 * @note unrelevant if unpickled instance */
	Py_buffer mm_buff;

	/**@brief Memory map buffer pointer */
	void *_mmap;

} PyRPNIFS_t;


PyObject *rpnifs_new(PyTypeObject *subtype, PyObject *args, PyObject *kwds);
int rpnifs_init(PyObject *self, PyObject *args, PyObject *kwds);
void rpnifs_del(PyObject *self);


PyObject *rpnifs_to_pos(PyObject *self, PyObject** argv, Py_ssize_t argc);
PyObject *rpnifs_from_pos(PyObject *self, PyObject* _pos);

PyObject *rpnifs_weights(PyObject *self, PyObject *const *args, Py_ssize_t nargs);
PyObject *rpnifs_weight(PyObject *self, PyObject *const *args, Py_ssize_t nargs);
PyObject *rpnifs_position(PyObject *self, PyObject *const *args, Py_ssize_t nargs);
PyObject *rpnifs_run(PyObject *self, PyObject *const *args, Py_ssize_t nargs);

PyObject *rpnifs_str(PyObject *self);
PyObject *rpnifs_repr(PyObject *self);

Py_ssize_t rpnifs_len(PyObject *self);
PyObject *rpnifs_expr_item(PyObject *self, Py_ssize_t idx);
int rpnifs_expr_ass_item(PyObject *self, Py_ssize_t idx, PyObject *value);

int rpnifs_getbuffer(PyObject *self, Py_buffer *view, int flags);
void rpnifs_releasebuffer(PyObject *self, Py_buffer *view);

int _rpnifs_update_if_tuple(PyRPNIFS_t *ifs_self);


#endif