Messieurs dames, bien le bonsoir ^^
J'ai repris mes études depuis septembre dernier et pour ne pas que je m'ennui cette été on m'a confié la tache de faire un chat en C, avec GTK+ et glade 2.
Je me suis bien familiarisé avec GTK+ et depuis quelques jours (semaines) je cherche à y intégrer des threads mais je bloque...
voici mon problème, je souhaiterais créé un thread via un callback (clique bouton), et en même temps passer des arguments à la fonction appelée.
Le thread se crée bien sauf que les paramètres n'arrivent pas à la fonction... et je n'arrive pas à trouver pourquoi...
voici mes fichiers de code : (ils sont aussi dans le tar.gz joint)
main.c
interface.c :
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36 #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <gtk/gtk.h> #include <pthread.h> #include "interface.h" #include "support.h" #include "MesFonctions.h" int main (int argc, char *argv[]) { GtkWidget *chat_window; #ifdef ENABLE_NLS bindtextdomain (GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); textdomain (GETTEXT_PACKAGE); #endif /* init threads */ g_thread_init (NULL); gdk_threads_init (); gdk_threads_enter (); gtk_init (&argc, &argv); chat_window = create_chat_window (); gtk_widget_show (chat_window); gtk_main (); gdk_threads_leave (); return 0; }
interface.h :
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139 #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <string.h> #include <stdio.h> #include <gdk/gdkkeysyms.h> #include <gtk/gtk.h> #include "callbacks.h" #include "interface.h" #include "support.h" #define GLADE_HOOKUP_OBJECT(component,widget,name) \ g_object_set_data_full (G_OBJECT (component), name, \ gtk_widget_ref (widget), (GDestroyNotify) gtk_widget_unref) #define GLADE_HOOKUP_OBJECT_NO_REF(component,widget,name) \ g_object_set_data (G_OBJECT (component), name, widget) GtkWidget* create_chat_window (void) { GtkWidget *chat_window; GtkWidget *vbox1; GtkWidget *vbox2; GtkWidget *pseudo_entry; GtkWidget *IP_entry; GtkWidget *connexion_bouton; GtkWidget *chat_view_scroll; GtkWidget *chat_view; GtkWidget *chat_entry_scroll; GtkWidget *chat_entry; GtkWidget *send_bouton; chat_window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_widget_set_size_request (chat_window, 350, 600); gtk_container_set_border_width (GTK_CONTAINER (chat_window), 5); gtk_window_set_title (GTK_WINDOW (chat_window), _("Chat windows")); gtk_window_set_resizable (GTK_WINDOW (chat_window), FALSE); gtk_window_set_position(GTK_WINDOW(chat_window),GTK_WIN_POS_CENTER); vbox1 = gtk_vbox_new (FALSE, 0); gtk_widget_show (vbox1); gtk_container_add (GTK_CONTAINER (chat_window), vbox1); vbox2 = gtk_vbox_new (FALSE, 0); gtk_widget_show (vbox2); gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, TRUE, 0); pseudo_entry = gtk_entry_new (); gtk_widget_show (pseudo_entry); gtk_box_pack_start (GTK_BOX (vbox2), pseudo_entry, FALSE, FALSE, 0); gtk_entry_set_text (GTK_ENTRY (pseudo_entry), _("Pseudo")); gtk_entry_set_invisible_char (GTK_ENTRY (pseudo_entry), 8226); IP_entry = gtk_entry_new (); gtk_widget_show (IP_entry); gtk_box_pack_start (GTK_BOX (vbox2), IP_entry, FALSE, FALSE, 0); gtk_entry_set_text (GTK_ENTRY (IP_entry), _("IP du server")); gtk_entry_set_invisible_char (GTK_ENTRY (IP_entry), 8226); connexion_bouton = gtk_button_new_with_mnemonic (_("Connexion au server")); gtk_widget_show (connexion_bouton); gtk_box_pack_start (GTK_BOX (vbox2), connexion_bouton, FALSE, FALSE, 0); chat_view_scroll = gtk_scrolled_window_new (NULL, NULL); gtk_widget_show (chat_view_scroll); gtk_box_pack_start (GTK_BOX (vbox1), chat_view_scroll, TRUE, TRUE, 0); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (chat_view_scroll), GTK_POLICY_NEVER, GTK_POLICY_ALWAYS); gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (chat_view_scroll), GTK_SHADOW_IN); chat_view = gtk_text_view_new (); gtk_widget_show (chat_view); gtk_container_add (GTK_CONTAINER (chat_view_scroll), chat_view); gtk_widget_set_size_request (chat_view, -1, 503); gtk_container_set_border_width (GTK_CONTAINER (chat_view), 4); gtk_widget_set_sensitive (chat_view, FALSE); GTK_WIDGET_UNSET_FLAGS (chat_view, GTK_CAN_FOCUS); gtk_text_view_set_editable (GTK_TEXT_VIEW (chat_view), FALSE); gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (chat_view), FALSE); gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (chat_view), GTK_WRAP_WORD); gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (chat_view), FALSE); chat_entry_scroll = gtk_scrolled_window_new (NULL, NULL); gtk_widget_show (chat_entry_scroll); gtk_box_pack_start (GTK_BOX (vbox1), chat_entry_scroll, FALSE, TRUE, 0); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (chat_entry_scroll), GTK_POLICY_NEVER, GTK_POLICY_ALWAYS); gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (chat_entry_scroll), GTK_SHADOW_IN); chat_entry = gtk_text_view_new (); gtk_widget_show (chat_entry); gtk_container_add (GTK_CONTAINER (chat_entry_scroll), chat_entry); gtk_widget_set_size_request (chat_entry, -1, 95); gtk_container_set_border_width (GTK_CONTAINER (chat_entry), 4); gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (chat_entry), GTK_WRAP_WORD); gtk_text_buffer_set_text (gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat_entry)), _("Zone de saisie"), -1); send_bouton = gtk_button_new_with_mnemonic (_("Envoyer")); gtk_widget_show (send_bouton); gtk_box_pack_start (GTK_BOX (vbox1), send_bouton, FALSE, FALSE, 0); gtk_widget_show_all(chat_window); g_signal_connect ((gpointer) pseudo_entry, "insert_text", G_CALLBACK (on_pseudo_entry_insert_text), NULL); g_signal_connect ((gpointer) IP_entry, "insert_text", G_CALLBACK (on_IP_entry_insert_text), NULL); g_signal_connect ((gpointer) connexion_bouton, "clicked", G_CALLBACK (on_connexion_bouton_clicked), NULL); g_signal_connect ((gpointer) send_bouton, "clicked", G_CALLBACK (on_send_bouton_clicked), NULL); g_signal_connect(chat_window, "destroy", G_CALLBACK(gtk_main_quit), NULL); /* Store pointers to all widgets, for use by lookup_widget(). */ GLADE_HOOKUP_OBJECT_NO_REF (chat_window, chat_window, "chat_window"); GLADE_HOOKUP_OBJECT (chat_window, vbox1, "vbox1"); GLADE_HOOKUP_OBJECT (chat_window, vbox2, "vbox2"); GLADE_HOOKUP_OBJECT (chat_window, pseudo_entry, "pseudo_entry"); GLADE_HOOKUP_OBJECT (chat_window, IP_entry, "IP_entry"); GLADE_HOOKUP_OBJECT (chat_window, connexion_bouton, "connexion_bouton"); GLADE_HOOKUP_OBJECT (chat_window, chat_view_scroll, "chat_view_scroll"); GLADE_HOOKUP_OBJECT (chat_window, chat_view, "chat_view"); GLADE_HOOKUP_OBJECT (chat_window, chat_entry_scroll, "chat_entry_scroll"); GLADE_HOOKUP_OBJECT (chat_window, chat_entry, "chat_entry"); GLADE_HOOKUP_OBJECT (chat_window, send_bouton, "send_bouton"); return chat_window; }
callback.c :
Code : Sélectionner tout - Visualiser dans une fenêtre à part GtkWidget* create_chat_window (void);
callback.h :
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104 #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <gtk/gtk.h> #include <string.h> #include <unistd.h> //#include "callbacks.h" #include "interface.h" #include "support.h" #include "MesFonctions.h" void on_pseudo_entry_insert_text (GtkEditable *editable, gchar *new_text, gint new_text_length, gpointer position, gpointer user_data) { } void on_IP_entry_insert_text (GtkEditable *editable, gchar *new_text, gint new_text_length, gpointer position, gpointer user_data) { } void on_connexion_bouton_clicked (GtkButton *button, gpointer user_data) { ID_player info_player; GError *error = NULL; GtkWidget * ID_pseudo_entry = lookup_widget(GTK_WIDGET(button),"pseudo_entry"); GtkWidget * ID_IP_entry = lookup_widget(GTK_WIDGET(button),"IP_entry"); // info_player.Pseudo = gtk_entry_get_text(GTK_ENTRY(ID_pseudo_entry)); // info_player.pIP = gtk_entry_get_text(GTK_ENTRY(ID_IP_entry)); info_player.Pseudo = "ludo"; info_player.pIP = "192.168.36.100"; g_print("Pseudo = %s\tIP = %s\n",info_player.Pseudo, info_player.pIP); if(!g_thread_create(monthread, &info_player, TRUE, &error)) { g_printerr ("Failed to create YES thread: %s\n", error->message); } gtk_widget_set_sensitive(GTK_WIDGET(button), FALSE); // pour rendre inactif le bouton (grisé) } void on_send_bouton_clicked (GtkButton *button, gpointer user_data) { GtkWidget * pchat_entry = lookup_widget(GTK_WIDGET(button),"chat_entry"); GtkWidget * pchat_view = lookup_widget(GTK_WIDGET(button),"chat_view"); GtkTextBuffer * pTextBuffer; GtkTextBuffer * pTextBufferView; GtkTextIter iStart; GtkTextIter iEnd; gchar * sBuffer; gchar * PlayerName = "ludo a dit : " ; GtkTextIter StartLine; pTextBuffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(pchat_entry)); pTextBufferView = gtk_text_view_get_buffer(GTK_TEXT_VIEW(pchat_view)); gtk_text_buffer_get_start_iter(pTextBuffer, &iStart); // on récupère l'origine du buffer gtk_text_buffer_get_end_iter(pTextBuffer, &iEnd); // on récupère la fin du buffer sBuffer = gtk_text_buffer_get_text(pTextBuffer, &iStart, &iEnd, TRUE); gtk_text_buffer_get_end_iter(pTextBufferView, &StartLine); gtk_text_buffer_insert (pTextBufferView, &StartLine, g_strconcat(PlayerName,sBuffer, "\n",NULL), -1); // pour vider le buffer de saisie gtk_text_buffer_get_bounds (pTextBuffer, &iStart, &iEnd); gtk_text_buffer_delete (pTextBuffer, &iStart, &iEnd); gtk_text_view_set_buffer(GTK_TEXT_VIEW(pchat_entry),pTextBuffer); g_free(sBuffer); }
support.c :
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24 #include <gtk/gtk.h> void on_pseudo_entry_insert_text (GtkEditable *editable, gchar *new_text, gint new_text_length, gpointer position, gpointer user_data); void on_IP_entry_insert_text (GtkEditable *editable, gchar *new_text, gint new_text_length, gpointer position, gpointer user_data); void on_send_bouton_clicked (GtkButton *button, gpointer user_data); void on_connexion_bouton_clicked (GtkButton *button, gpointer user_data);
support.h :
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139 #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <string.h> #include <stdio.h> #include <gtk/gtk.h> #include "support.h" GtkWidget* lookup_widget (GtkWidget *widget, const gchar *widget_name) { GtkWidget *parent, *found_widget; for (;;) { if (GTK_IS_MENU (widget)) parent = gtk_menu_get_attach_widget (GTK_MENU (widget)); else parent = widget->parent; if (!parent) parent = (GtkWidget*) g_object_get_data (G_OBJECT (widget), "GladeParentKey"); if (parent == NULL) break; widget = parent; } found_widget = (GtkWidget*) g_object_get_data (G_OBJECT (widget), widget_name); if (!found_widget) g_warning ("Widget not found: %s", widget_name); return found_widget; } static GList *pixmaps_directories = NULL; /* Use this function to set the directory containing installed pixmaps. */ void add_pixmap_directory (const gchar *directory) { pixmaps_directories = g_list_prepend (pixmaps_directories, g_strdup (directory)); } /* This is an internally used function to find pixmap files. */ static gchar* find_pixmap_file (const gchar *filename) { GList *elem; /* We step through each of the pixmaps directory to find it. */ elem = pixmaps_directories; while (elem) { gchar *pathname = g_strdup_printf ("%s%s%s", (gchar*)elem->data, G_DIR_SEPARATOR_S, filename); if (g_file_test (pathname, G_FILE_TEST_EXISTS)) return pathname; g_free (pathname); elem = elem->next; } return NULL; } /* This is an internally used function to create pixmaps. */ GtkWidget* create_pixmap (GtkWidget *widget, const gchar *filename) { gchar *pathname = NULL; GtkWidget *pixmap; if (!filename || !filename[0]) return gtk_image_new (); pathname = find_pixmap_file (filename); if (!pathname) { g_warning (_("Couldn't find pixmap file: %s"), filename); return gtk_image_new (); } pixmap = gtk_image_new_from_file (pathname); g_free (pathname); return pixmap; } /* This is an internally used function to create pixmaps. */ GdkPixbuf* create_pixbuf (const gchar *filename) { gchar *pathname = NULL; GdkPixbuf *pixbuf; GError *error = NULL; if (!filename || !filename[0]) return NULL; pathname = find_pixmap_file (filename); if (!pathname) { g_warning (_("Couldn't find pixmap file: %s"), filename); return NULL; } pixbuf = gdk_pixbuf_new_from_file (pathname, &error); if (!pixbuf) { fprintf (stderr, "Failed to load pixbuf file: %s: %s\n", pathname, error->message); g_error_free (error); } g_free (pathname); return pixbuf; } /* This is used to set ATK action descriptions. */ void glade_set_atk_action_description (AtkAction *action, const gchar *action_name, const gchar *description) { gint n_actions, i; n_actions = atk_action_get_n_actions (action); for (i = 0; i < n_actions; i++) { if (!strcmp (atk_action_get_name (action, i), action_name)) atk_action_set_description (action, i, description); } }
MesFonctions.c :
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54 #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <gtk/gtk.h> /* * Standard gettext macros. */ #ifdef ENABLE_NLS # include <libintl.h> # undef _ # define _(String) dgettext (PACKAGE, String) # define Q_(String) g_strip_context ((String), gettext (String)) # ifdef gettext_noop # define N_(String) gettext_noop (String) # else # define N_(String) (String) # endif #else # define textdomain(String) (String) # define gettext(String) (String) # define dgettext(Domain,Message) (Message) # define dcgettext(Domain,Message,Type) (Message) # define bindtextdomain(Domain,Directory) (Domain) # define _(String) (String) # define Q_(String) g_strip_context ((String), (String)) # define N_(String) (String) #endif GtkWidget* lookup_widget (GtkWidget *widget, const gchar *widget_name); /* Use this function to set the directory containing installed pixmaps. */ void add_pixmap_directory (const gchar *directory); /* * Private Functions. */ /* This is used to create the pixmaps used in the interface. */ GtkWidget* create_pixmap (GtkWidget *widget, const gchar *filename); /* This is used to create the pixbufs used in the interface. */ GdkPixbuf* create_pixbuf (const gchar *filename); /* This is used to set ATK action descriptions. */ void glade_set_atk_action_description (AtkAction *action, const gchar *action_name, const gchar *description);
MesFonctions.h :
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26 #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include <unistd.h> #include <gtk/gtk.h> #include "MesFonctions.h" //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ // Fonction de test //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ void *monthread (void* args) { ID_player *data = args; while(1) { g_print("data = %s\n",data->Pseudo); sleep(2); } }
Je sens bien qu'il y a un problème avec la mémoire, mais je ne comprend pas pourquoi d'autant que si je déplace la création du thread dans le main ça marche très bien...
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11 #ifndef MESFONCTIONS #define MESFONCTIONS typedef struct { gchar * Pseudo; gchar * pIP; } ID_player; void *monthread (void* args); #endif
A votre bon coeur messieurs dames
Bonne soirée et merci pour ceux qui auront déjà eu le courage d'arriver si bas dans ce post...
++
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