/* OpenIDA - Outil d'analyse de fichiers binaires
 * codebuffer.c - équivalent Python du fichier "glibext/gcodebuffer.h"
 *
 * Copyright (C) 2012 Cyrille Bagard
 *
 *  This file is part of OpenIDA.
 *
 *  OpenIDA 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
 *  (at your option) any later version.
 *
 *  OpenIDA 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


#include "codebuffer.h"


#include <pygobject.h>


#include <glibext/gcodebuffer.h>


#include "../quirks.h"



/* Retrouve une ligne au sein d'un tampon avec une adresse. */
static PyObject *py_code_buffer_find_line_by_addr(PyObject *, PyObject *);



/******************************************************************************
*                                                                             *
*  Paramètres  : self = classe représentant un tampon de code.                *
*                args = arguments fournis à l'appel.                          *
*                                                                             *
*  Description : Retrouve une ligne au sein d'un tampon avec une adresse.     *
*                                                                             *
*  Retour      : Instance de la ligne trouvée.                                *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

static PyObject *py_code_buffer_find_line_by_addr(PyObject *self, PyObject *args)
{
    PyObject *result;                       /* Trouvailles à retourner     */
    GCodeBuffer *buffer;                    /* Version native              */
    vmpa_t addr;                            /* Adresse visée par l'opérat° */
    int ret;                                /* Bilan de lecture des args.  */
    GBufferLine *line;                      /* Ligne trouvée               */

    buffer = G_CODE_BUFFER(pygobject_get(self));

    ret = PyArg_ParseTuple(args, "K", &addr);
    if (!ret) Py_RETURN_NONE;

    line = g_code_buffer_find_line_by_addr(buffer, addr);
    if (line == NULL) Py_RETURN_NONE;

    result = pygobject_new(G_OBJECT(line));

    return result;

}


/******************************************************************************
*                                                                             *
*  Paramètres  : module = module dont la définition est à compléter.          *
*                                                                             *
*  Description : Prend en charge l'objet 'pychrysalide.glibext.Codebuffer'.   *
*                                                                             *
*  Retour      : Bilan de l'opération.                                        *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

bool register_python_code_buffer(PyObject *module)
{
    PyObject *pygobj_mod;                   /* Module Python-GObject       */
    int ret;                                /* Bilan d'un appel            */

    static PyMethodDef py_code_buffer_methods[] = {
        {
            "find_line_by_addr", (PyCFunction)py_code_buffer_find_line_by_addr,
            METH_VARARGS,
            "Find a buffer line with a given address."
        },
        { NULL }
    };

    static PyTypeObject py_code_buffer_type = {

        PyObject_HEAD_INIT(NULL)

        .tp_name        = "pychrysalide.glibext.CodeBuffer",
        .tp_basicsize   = sizeof(PyGObject),

        .tp_flags       = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,

        .tp_doc         = "PyChrysalide code buffer",

        .tp_methods     = py_code_buffer_methods

    };

    pygobj_mod = PyImport_ImportModule("gobject");
    if (pygobj_mod == NULL) return false;

    py_code_buffer_type.tp_base = (PyTypeObject *)PyObject_GetAttrString(pygobj_mod, "GObject");
    Py_DECREF(pygobj_mod);

    if (PyType_Ready(&py_code_buffer_type) < 0)
        return false;

    Py_INCREF(&py_code_buffer_type);
    ret = PyModule_AddObject(module, "CodeBuffer", (PyObject *)&py_code_buffer_type);

    pygobject_register_class(module, "GCodeBuffer", G_TYPE_CODE_BUFFER, &py_code_buffer_type,
                             Py_BuildValue("(O)", py_code_buffer_type.tp_base));

    return (ret == 0);

}