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/* Chrysalide - Outil d'analyse de fichiers binaires
* gleak.c - aide à la détection de fuites d'instances de GTypes
*
* Copyright (C) 2019 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gleak.h"
#include <glib-object.h>
#include <malloc.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "common/environment.h"
#define DUMP_OPEN_MSG "\n---------- GType instance leak dump ----------\n\n"
#define DUMP_CLOSE_MSG "\n----------------------------------------------\n\n"
/* Parcourt l'arborescence des types à la recherche de fuites. */
static void track_gtype_for_leak(GType, bool *);
/******************************************************************************
* *
* Paramètres : root = racine des types d'instance à retrouver. *
* first = suivi des premières impressions. [OUT] *
* *
* Description : Parcourt l'arborescence des types à la recherche de fuites. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void track_gtype_for_leak(GType root, bool *first)
{
GType *children; /* Liste de tous les sous-types*/
guint count; /* Taille de cette liste */
GType *iter; /* Boucle de parcours */
int remaining; /* Nombre d'instances restantes*/
children = g_type_children(root, &count);
if (count == 0)
{
remaining = g_type_get_instance_count(root);
if (remaining > 0)
{
if (*first)
{
fprintf(stderr, DUMP_OPEN_MSG);
*first = false;
}
fprintf(stderr, "%s: %d\n", g_type_name(root), remaining);
}
}
else
for (iter = children; *iter != 0; iter++)
track_gtype_for_leak(*iter, first);
g_free(children);
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Affiche la liste des instances courantes restantes par type. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
void dump_remaining_gtypes(void)
{
char *debug; /* Conditions d'environnement */
bool first; /* Première fois ? */
debug = get_env_var("GOBJECT_DEBUG");
if (strstr(debug, "instance-count") == NULL)
{
fprintf(stderr, DUMP_OPEN_MSG);
fprintf(stderr, "The GOBJECT_DEBUG variable does not include instance-count.\n");
fprintf(stderr, "Exiting the dumping process...\n");
fprintf(stderr, DUMP_CLOSE_MSG);
}
else
{
first = true;
track_gtype_for_leak(G_TYPE_OBJECT, &first);
if (!first)
fprintf(stderr, DUMP_CLOSE_MSG);
}
free(debug);
}
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