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author | Cyrille Bagard <nocbos@gmail.com> | 2024-06-21 22:26:13 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2024-06-21 22:26:13 (GMT) |
commit | d49b837c891e0490167b51c4a9811cb2e8276588 (patch) | |
tree | 9bc499f2d7077a0e715b88c8c71dca1691b6c1df /plugins/pychrysalide/glibext/work.c | |
parent | fde070b3d2392333fffec6ac6eff3647dacd8b80 (diff) |
Restore and improve work queues.
Diffstat (limited to 'plugins/pychrysalide/glibext/work.c')
-rw-r--r-- | plugins/pychrysalide/glibext/work.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/plugins/pychrysalide/glibext/work.c b/plugins/pychrysalide/glibext/work.c new file mode 100644 index 0000000..6a15984 --- /dev/null +++ b/plugins/pychrysalide/glibext/work.c @@ -0,0 +1,351 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * work.c - prototypes pour l'équivalent Python du fichier "glibext/work.c" + * + * Copyright (C) 2024 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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 "work.h" + + +#include <assert.h> +#include <pygobject.h> + + +#include <glibext/work-int.h> + + +#include "../access.h" +#include "../helpers.h" + + + +/* ------------------------ GLUE POUR CREATION DEPUIS PYTHON ------------------------ */ + + +/* Initialise la classe des travaux programmés. */ +static void py_generic_work_init_gclass(GGenericWorkClass *, gpointer); + +CREATE_DYN_ABSTRACT_CONSTRUCTOR(generic_work, G_TYPE_GENERIC_WORK, py_generic_work_init_gclass); + +/* Initialise une instance sur la base du dérivé de GObject. */ +static int py_generic_work_init(PyObject *, PyObject *, PyObject *); + +/* Mène l'opération programmée. */ +static void py_generic_work_run_wrapper(GGenericWork *); + + + +/* ------------------------- CONNEXION AVEC L'API DE PYTHON ------------------------- */ + + +/* Mène l'opération programmée. */ +static PyObject *py_generic_work_process(PyObject *, PyObject *); + + + +/* ---------------------------------------------------------------------------------- */ +/* GLUE POUR CREATION DEPUIS PYTHON */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : class = classe à initialiser. * +* unused = données non utilisées ici. * +* * +* Description : Initialise la classe des travaux programmés. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void py_generic_work_init_gclass(GGenericWorkClass *class, gpointer unused) +{ + class->run = py_generic_work_run_wrapper; + +} + + +/****************************************************************************** +* * +* Paramètres : self = objet à initialiser (théoriquement). * +* args = arguments fournis à l'appel. * +* kwds = arguments de type key=val fournis. * +* * +* Description : Initialise une instance sur la base du dérivé de GObject. * +* * +* Retour : 0. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static int py_generic_work_init(PyObject *self, PyObject *args, PyObject *kwds) +{ + int ret; /* Bilan de lecture des args. */ + +#define GENERIC_WORK_DOC \ + "GenericWork defines a basic work aimed to get processed in a" \ + " thread set up by a pychrysalide.glibext.WorkQueue object.\n" \ + "\n" \ + "Instances can be created using the following constructor:\n" \ + "\n" \ + " GenericWork()" \ + "\n" \ + "The following method has to be defined for new classes:\n" \ + "* pychrysalide.glibext.GenericWork._run();\n" \ + "\n" \ + "The following signal may be emitted:\n" \ + "* *work-completed* : when the work has been processed." + + /* Initialisation d'un objet GLib */ + + ret = forward_pygobjet_init(self); + if (ret == -1) return -1; + + return 0; + +} + + +/****************************************************************************** +* * +* Paramètres : work = travail à effectuer. * +* * +* Description : Mène l'opération programmée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void py_generic_work_run_wrapper(GGenericWork *work) +{ + PyGILState_STATE gstate; /* Sauvegarde d'environnement */ + PyObject *pyobj; /* Objet Python concerné */ + PyObject *pyret; /* Bilan de consultation */ + +#define GENERIC_WORK_RUN_WRAPPER PYTHON_WRAPPER_DEF \ +( \ + _run, "$self", \ + METH_NOARGS, \ + "Abstract method used to process the work.\n" \ + "\n" \ + "No result is expected from this function." \ +) + + gstate = PyGILState_Ensure(); + + pyobj = pygobject_new(G_OBJECT(work)); + + if (has_python_method(pyobj, "_run")) + { + pyret = run_python_method(pyobj, "_run", NULL); + + Py_XDECREF(pyret); + + } + + Py_DECREF(pyobj); + + PyGILState_Release(gstate); + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* CONNEXION AVEC L'API DE PYTHON */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : self = élément d'appel à consulter. * +* args = arguments fournis pour l'opération. * +* * +* Description : Mène l'opération programmée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_generic_work_process(PyObject *self, PyObject *args) +{ + PyObject *result; /* Bilan à retourner */ + GGenericWork *work; /* Version native */ + +#define GENERIC_WORK_PROCESS_METHOD PYTHON_METHOD_DEF \ +( \ + process, "$self", \ + METH_NOARGS, py_generic_work, \ + "Process the work.\n" \ + "\n" \ + "The function does not return anything.\n" \ + "\n" \ + "The *work-completed* signal is emitted when the" \ + " function terminates." \ +) + + work = G_GENERIC_WORK(pygobject_get(self)); + + g_generic_work_process(work); + + result = Py_None; + Py_INCREF(result); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Fournit un accès à une définition de type à diffuser. * +* * +* Retour : Définition d'objet pour Python. * +* * +* Remarques : - * +* * +******************************************************************************/ + +PyTypeObject *get_python_generic_work_type(void) +{ + static PyMethodDef py_generic_work_methods[] = { + GENERIC_WORK_RUN_WRAPPER, + GENERIC_WORK_PROCESS_METHOD, + { NULL } + }; + + static PyGetSetDef py_generic_work_getseters[] = { + { NULL } + }; + + static PyTypeObject py_generic_work_type = { + + PyVarObject_HEAD_INIT(NULL, 0) + + .tp_name = "pychrysalide.glibext.GenericWork", + .tp_basicsize = sizeof(PyGObject), + + .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, + + .tp_doc = GENERIC_WORK_DOC, + + .tp_methods = py_generic_work_methods, + .tp_getset = py_generic_work_getseters, + + .tp_init = py_generic_work_init, + .tp_new = py_generic_work_new, + + }; + + return &py_generic_work_type; + +} + + +/****************************************************************************** +* * +* Paramètres : module = module dont la définition est à compléter. * +* * +* Description : Prend en charge l'objet 'pychrysalide.glibext.GenericWork'. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool ensure_python_generic_work_is_registered(void) +{ + PyTypeObject *type; /* Type Python 'GenericWork' */ + PyObject *module; /* Module à recompléter */ + PyObject *dict; /* Dictionnaire du module */ + + type = get_python_generic_work_type(); + + if (!PyType_HasFeature(type, Py_TPFLAGS_READY)) + { + module = get_access_to_python_module("pychrysalide.glibext"); + + dict = PyModule_GetDict(module); + + if (!register_class_for_pygobject(dict, G_TYPE_GENERIC_WORK, type)) + return false; + + } + + return true; + +} + + +/****************************************************************************** +* * +* Paramètres : arg = argument quelconque à tenter de convertir. * +* dst = destination des valeurs récupérées en cas de succès. * +* * +* Description : Tente de convertir en travail générique. * +* * +* Retour : Bilan de l'opération, voire indications supplémentaires. * +* * +* Remarques : - * +* * +******************************************************************************/ + +int convert_to_generic_work(PyObject *arg, void *dst) +{ + int result; /* Bilan à retourner */ + + result = PyObject_IsInstance(arg, (PyObject *)get_python_generic_work_type()); + + switch (result) + { + case -1: + /* L'exception est déjà fixée par Python */ + result = 0; + break; + + case 0: + PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to generic work"); + break; + + case 1: + *((GGenericWork **)dst) = G_GENERIC_WORK(pygobject_get(arg)); + break; + + default: + assert(false); + break; + + } + + return result; + +} |