Re: [Bluez-devel] [PATCH] [RESEND] make bluez GNOME UIs singletons

Chris Rivera
2007-12-06T17:59:17Z

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Attached is an updated patch with the changes that we talked about.

Chris

On Dec 3, 2007 11:59 AM, Marcel Holtmann <marcel@holtmann.org> wrote:

> Hi Chris,
>
> >
> > I meant to look into it, but never got around it. Some small
> > comments
> > about it. Don't make the applet a singleton. That is totally
> > unneeded
> > since the applet will be loaded at login.
> >
> > I still think it should be a singleton. You wouldn't ever want two
> > applets running unless you're testing, and we have the singleton flags
> > for that. I don't think this hurts anything.
>
> I am okay with that. Please abstract everything into common/. And don't
> forget to document it in the manual pages.
>
> > For the "Present" method. Don't use the D-Bus low-level calls.
> > It should
> > be all dbus-glib. Which means we have to abstract that into an
> > object. I
> > don't know if there is a well defined way for this. If it is,
> > it might
> > be good to use that. If not, then propose something for
> > freedesktop.org.
> >
> > I thought about doing this, but it seems like overkill to define a
> > GObject to just expose one method. GObject isn't exactly terse
> > either.
>
> In a simple way you can use GObject for it. It is better than using the
> low-level D-Bus calls.
>
> > And we should probably have some generic methods inside
> > common/ instead
> > of doing it again in every program.
> >
> > Please follow the kernel coding style. I know it is odd for a
> > GTK
> > application, but it makes it a lot easier for me.
> >
> > Which parts of the patch violate the kernel coding style? The
> > function parameter spacing?
>
> Mainly the spacing.
>
>

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diff -urN gnome/applet/bluetooth-applet.1 gnome-new/applet/bluetooth-applet.1
--- gnome/applet/bluetooth-applet.1 2007-07-22 11:33:13.000000000 -0400
+++ gnome-new/applet/bluetooth-applet.1 2007-12-06 11:28:00.000000000 -0500
@@ -10,8 +10,9 @@
.I bluetooth-applet
is part of bluez-gnome, see also http://www.bluez.org
.SH OPTIONS
-.I bluetooth-applet
-takes no options
+.TP
+.BI \-\-singleton
+Ensure that only one instance is running.
.SH AUTHOR
Marcel Holtmann <marcel@holtmann.org>
.SH LICENSE
diff -urN gnome/applet/bluetooth-applet.desktop.in gnome-new/applet/bluetooth-applet.desktop.in
--- gnome/applet/bluetooth-applet.desktop.in 2007-04-03 04:09:01.000000000 -0400
+++ gnome-new/applet/bluetooth-applet.desktop.in 2007-12-06 11:16:03.000000000 -0500
@@ -3,7 +3,7 @@
_Name=Bluetooth Manager
_Comment=Bluetooth Manager applet
Icon=stock_bluetooth
-Exec=bluetooth-applet
+Exec=bluetooth-applet --singleton
Terminal=false
Type=Application
Categories=
diff -urN gnome/applet/main.c gnome-new/applet/main.c
--- gnome/applet/main.c 2007-12-04 10:30:51.000000000 -0500
+++ gnome-new/applet/main.c 2007-12-06 11:16:03.000000000 -0500
@@ -49,6 +49,7 @@
#endif

#include "bluetooth-device-selection.h"
+#include "bluetooth-application-instance.h"

#define PASSKEY_AGENT_PATH "/org/bluez/passkey"
#define AUTH_AGENT_PATH "/org/bluez/auth"
@@ -1550,7 +1551,7 @@

static void settings_callback(GObject *widget, gpointer user_data)
{
- const char *command = "bluetooth-properties";
+ const char *command = "bluetooth-properties --singleton";

if (!g_spawn_command_line_async(command, NULL))
g_printerr("Couldn't execute command: %s\n", command);
@@ -1639,7 +1640,7 @@
#if 0
static void wizard_callback(GObject *widget, gpointer user_data)
{
- const char *command = "bluetooth-wizard";
+ const char *command = "bluetooth-wizard --singleton";

if (!g_spawn_command_line_async(command, NULL))
g_printerr("Couldn't execute command: %s\n", command);
@@ -1782,9 +1783,19 @@

int main(int argc, char *argv[])
{
+ GOptionContext *ctx;
GtkWidget *menu;
GError *error = NULL;
+ BluetoothApplicationInstance *app;
char *str;
+ int retval = 0;
+ gboolean singleton = FALSE;
+
+ GOptionEntry entries[] = {
+ { "singleton", 0, 0, G_OPTION_ARG_NONE, &singleton,
+ N_("Only allow one instance of this application"), NULL },
+ { NULL, 0, 0, 0, NULL, NULL, NULL }
+ };

bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
@@ -1792,6 +1803,15 @@

gtk_init(&argc, &argv);

+ ctx = g_option_context_new("");
+ g_option_context_add_main_entries(ctx, entries, NULL);
+ if (!g_option_context_parse(ctx, &argc, &argv, &error)) {
+ g_printerr(_("parsing failed: %s\n"), error->message);
+ g_error_free(error);
+ g_option_context_free(ctx);
+ return retval;
+ }
+
#ifdef HAVE_LIBNOTIFY
notify_init("bluetooth-manager");
#endif
@@ -1804,6 +1824,11 @@
exit(EXIT_FAILURE);
}

+ app = bluetooth_application_instance_new();
+ if(!bluetooth_application_instance_register(app, &retval, singleton,
+ "/org/bluez/Applet", "org.bluez.Applet"))
+ exit(retval);
+
gconf = gconf_client_get_default();

#ifdef HAVE_HAL
@@ -1860,6 +1885,10 @@
g_list_foreach(adapter_list, adapter_free, NULL);

dbus_g_connection_unref(conn);
+
+ g_object_unref(app);

+ g_option_context_free(ctx);
+
return 0;
}
diff -urN gnome/common/bluetooth-application-instance.c gnome-new/common/bluetooth-application-instance.c
--- gnome/common/bluetooth-application-instance.c 1969-12-31 19:00:00.000000000 -0500
+++ gnome-new/common/bluetooth-application-instance.c 2007-12-06 11:16:19.000000000 -0500
@@ -0,0 +1,132 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2005-2007 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <dbus/dbus-glib.h>
+
+#include "bluetooth-application-instance.h"
+#include "app-instance-glue.h"
+
+G_DEFINE_TYPE(BluetoothApplicationInstance, bluetooth_application_instance, G_TYPE_OBJECT)
+
+#define BLUETOOTH_APPLICATION_INSTANCE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), \
+ BLUETOOTH_TYPE_APPLICATION_INSTANCE, BluetoothApplicationInstancePrivate))
+
+typedef struct _BluetoothApplicationInstancePrivate BluetoothApplicationInstancePrivate;
+
+struct _BluetoothApplicationInstancePrivate {
+ GtkWindow *window;
+ DBusGConnection *connection;
+};
+
+gboolean
+bluetooth_application_instance_register(BluetoothApplicationInstance *self,
+ int *retval, gboolean singleton, gchar *path, gchar *service)
+{
+ BluetoothApplicationInstancePrivate *priv = BLUETOOTH_APPLICATION_INSTANCE_GET_PRIVATE(self);
+ DBusGConnection *sc;
+ DBusGProxy *proxy;
+ GError *error = NULL;
+ guint request_result;
+ gboolean ret;
+
+ sc = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
+ if (error != NULL) {
+ g_printerr("Connecting to session bus failed: %s\n", error->message);
+ g_error_free(error);
+ *retval = 1;
+ return FALSE;
+ }
+
+ proxy = dbus_g_proxy_new_for_name(sc, DBUS_SERVICE_DBUS,
+ DBUS_PATH_DBUS, DBUS_INTERFACE_DBUS);
+
+ ret = dbus_g_proxy_call(proxy, "RequestName", NULL,
+ G_TYPE_STRING, service, G_TYPE_UINT, 0, G_TYPE_INVALID,
+ G_TYPE_UINT, &request_result, G_TYPE_INVALID);
+
+ g_object_unref(G_OBJECT(proxy));
+ if (!ret) {
+ g_printerr("Failed to request name on the session bus\n");
+ dbus_g_connection_unref(sc);
+ *retval = 1;
+ return FALSE;
+ }
+
+ if (request_result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER && singleton) {
+ proxy = dbus_g_proxy_new_for_name(sc, service, path, "org.bluez.ApplicationInstance");
+ dbus_g_proxy_call_no_reply(proxy, "Present", G_TYPE_INVALID, G_TYPE_INVALID);
+ g_object_unref(G_OBJECT(proxy));
+ g_print("Another instance is already running.\n");
+ dbus_g_connection_unref(sc);
+ *retval = 0;
+ return FALSE;
+ }
+
+ dbus_g_connection_register_g_object(sc, path, G_OBJECT (self));
+ priv->connection = sc;
+ return TRUE;
+}
+
+void
+bluetooth_application_instance_set_window (BluetoothApplicationInstance *self, GtkWindow *window)
+{
+ BluetoothApplicationInstancePrivate *priv = BLUETOOTH_APPLICATION_INSTANCE_GET_PRIVATE(self);
+ priv->window = window;
+}
+
+gboolean
+bluetooth_application_instance_present(BluetoothApplicationInstance *self, GError **error)
+{
+ BluetoothApplicationInstancePrivate *priv = BLUETOOTH_APPLICATION_INSTANCE_GET_PRIVATE(self);
+ if (priv->window)
+ gtk_window_present(priv->window);
+ return TRUE;
+}
+
+static void
+bluetooth_application_instance_init(BluetoothApplicationInstance *self)
+{
+}
+
+static void
+bluetooth_application_instance_finalize(GObject *self)
+{
+ BluetoothApplicationInstancePrivate *priv = BLUETOOTH_APPLICATION_INSTANCE_GET_PRIVATE(self);
+ if (priv->connection)
+ dbus_g_connection_unref(priv->connection);
+}
+
+static void
+bluetooth_application_instance_class_init(BluetoothApplicationInstanceClass *klass)
+{
+ g_type_class_add_private(klass, sizeof(BluetoothApplicationInstancePrivate));
+ G_OBJECT_CLASS(klass)->finalize = bluetooth_application_instance_finalize;
+ dbus_g_object_type_install_info(BLUETOOTH_TYPE_APPLICATION_INSTANCE,
+ &dbus_glib_bluetooth_application_instance_object_info);
+}
+
+BluetoothApplicationInstance *
+bluetooth_application_instance_new(void)
+{
+ return g_object_new(BLUETOOTH_TYPE_APPLICATION_INSTANCE, NULL);
+}
diff -urN gnome/common/bluetooth-application-instance.h gnome-new/common/bluetooth-application-instance.h
--- gnome/common/bluetooth-application-instance.h 1969-12-31 19:00:00.000000000 -0500
+++ gnome-new/common/bluetooth-application-instance.h 2007-12-06 11:16:19.000000000 -0500
@@ -0,0 +1,63 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2005-2007 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef __BLUETOOTH_APPLICATION_INSTANCE_H
+#define __BLUETOOTH_APPLICATION_INSTANCE_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define BLUETOOTH_TYPE_APPLICATION_INSTANCE (bluetooth_application_instance_get_type())
+#define BLUETOOTH_APPLICATION_INSTANCE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), \
+ BLUETOOTH_TYPE_APPLICATION_INSTANCE, BluetoothApplicationInstance))
+#define BLUETOOTH_APPLICATION_INSTANCE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), \
+ BLUETOOTH_TYPE_APPLICATION_INSTANCE, BluetoothApplicationInstanceClass))
+#define BLUETOOTH_IS_APPLICATION_INSTANCE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), \
+ BLUETOOTH_TYPE_APPLICATION_INSTANCE))
+#define BLUETOOTH_IS_APPLICATION_INSTANCE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), \
+ BLUETOOTH_TYPE_APPLICATION_INSTANCE))
+#define BLUETOOTH_GET_APPLICATION_INSTANCE_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), \
+ BLUETOOTH_TYPE_APPLICATION_INSTANCE, BluetoothApplicationInstanceClass))
+
+typedef struct _BluetoothApplicationInstance BluetoothApplicationInstance;
+typedef struct _BluetoothApplicationInstanceClass BluetoothApplicationInstanceClass;
+
+struct _BluetoothApplicationInstance {
+ GObject parent;
+};
+
+struct _BluetoothApplicationInstanceClass {
+ GObjectClass parent_class;
+};
+
+GType bluetooth_application_instance_get_type(void);
+BluetoothApplicationInstance *bluetooth_application_instance_new(void);
+void bluetooth_application_instance_set_window(BluetoothApplicationInstance *self, GtkWindow *window);
+gboolean bluetooth_application_instance_present(BluetoothApplicationInstance *self, GError **error);
+gboolean bluetooth_application_instance_register(BluetoothApplicationInstance *self,
+ int *retval, gboolean singleton, gchar *path, gchar *service);
+
+G_END_DECLS
+
+#endif /* __BLUETOOTH_APPLICATION_INSTANCE_H */
diff -urN gnome/common/bluetooth-application-instance.xml gnome-new/common/bluetooth-application-instance.xml
--- gnome/common/bluetooth-application-instance.xml 1969-12-31 19:00:00.000000000 -0500
+++ gnome-new/common/bluetooth-application-instance.xml 2007-12-06 11:16:19.000000000 -0500
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<node name="/">
+ <interface name="org.bluez.ApplicationInstance">
+ <method name="Present">
+ </method>
+ </interface>
+</node>
diff -urN gnome/common/Makefile.am gnome-new/common/Makefile.am
--- gnome/common/Makefile.am 2007-07-25 06:28:56.000000000 -0400
+++ gnome-new/common/Makefile.am 2007-12-06 11:16:03.000000000 -0500
@@ -3,12 +3,13 @@

libcommon_a_SOURCES = \
client.h client.c device-store.h device-store.c \
+ bluetooth-application-instance.c bluetooth-application-instance.h \
bluetooth-device-selection.c bluetooth-device-selection.h

AM_CFLAGS = @DBUS_CFLAGS@ @GTK_CFLAGS@

BUILT_SOURCES = marshal.h marshal.c dbus-glue.h \
- passkey-agent-glue.h auth-agent-glue.h
+ passkey-agent-glue.h auth-agent-glue.h app-instance-glue.h

nodist_libcommon_a_SOURCES = $(BUILT_SOURCES)

@@ -22,7 +23,8 @@

test_deviceselection_LDADD = libcommon.a @GTK_LIBS@ @DBUS_LIBS@

-EXTRA_DIST = marshal.list dbus.xml passkey-agent.xml auth-agent.xml
+EXTRA_DIST = marshal.list dbus.xml passkey-agent.xml auth-agent.xml \
+ bluetooth-application-instance.xml

MAINTAINERCLEANFILES = Makefile.in

@@ -40,3 +42,6 @@

auth-agent-glue.h: auth-agent.xml
$(DBUS_BINDING_TOOL) --prefix=auth_agent --mode=glib-server --output=$@ $<
+
+app-instance-glue.h: bluetooth-application-instance.xml
+ $(DBUS_BINDING_TOOL) --prefix=bluetooth_application_instance --mode=glib-server --output=$@ $<
diff -urN gnome/properties/bluetooth-properties.1 gnome-new/properties/bluetooth-properties.1
--- gnome/properties/bluetooth-properties.1 2007-07-22 11:33:13.000000000 -0400
+++ gnome-new/properties/bluetooth-properties.1 2007-12-06 11:31:18.000000000 -0500
@@ -9,8 +9,9 @@
.I bluetooth-properties
is part of bluez-gnome, see also http://www.bluez.org
.SH OPTIONS
-.I bluetooth-properties
-takes no options
+.TP
+.BI \-\-singleton
+Ensure that only one instance is running.
.SH AUTHOR
Marcel Holtmann <marcel@holtmann.org>
.SH LICENSE
diff -urN gnome/properties/main.c gnome-new/properties/main.c
--- gnome/properties/main.c 2007-07-31 17:37:29.000000000 -0400
+++ gnome-new/properties/main.c 2007-12-06 11:16:03.000000000 -0500
@@ -40,6 +40,7 @@
#include "general.h"
#include "service.h"
#include "adapter.h"
+#include "bluetooth-application-instance.h"

static void delete_callback(GtkWidget *window, GdkEvent *event,
gpointer user_data)
@@ -58,7 +59,7 @@
gtk_main_quit();
}

-static void create_window(GtkWidget *notebook)
+static GtkWidget *create_window(GtkWidget *notebook)
{
GtkWidget *window;
GtkWidget *widget;
@@ -108,6 +109,7 @@
widget, _("General"));

gtk_widget_show_all(window);
+ return window;
}

static void name_owner_changed(DBusGProxy *object, const char *name,
@@ -141,17 +143,37 @@

int main(int argc, char *argv[])
{
+ GOptionContext *ctx;
GtkWidget *notebook;
+ GtkWidget *window;
+ GError *error = NULL;
DBusGConnection *conn;
+ BluetoothApplicationInstance *app;
DBusGProxy *manager;
- GError *error = NULL;
+ int retval = 0;
+ gboolean singleton = FALSE;

+ GOptionEntry entries[] = {
+ { "singleton", 0, 0, G_OPTION_ARG_NONE, &singleton,
+ N_("Only allow one instance of this application"), NULL },
+ { NULL, 0, 0, 0, NULL, NULL, NULL }
+ };
+
bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
textdomain(GETTEXT_PACKAGE);

gtk_init(&argc, &argv);

+ ctx = g_option_context_new("");
+ g_option_context_add_main_entries(ctx, entries, NULL);
+ if (!g_option_context_parse(ctx, &argc, &argv, &error)) {
+ g_printerr(_("parsing failed: %s\n"), error->message);
+ g_error_free(error);
+ g_option_context_free(ctx);
+ return retval;
+ }
+
conn = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);
if (error != NULL) {
g_printerr("Connecting to system bus failed: %s\n",
@@ -163,12 +185,18 @@
setup_general();

notebook = gtk_notebook_new();
-
+
assign_adapter(notebook);

- manager = setup_manager(conn);
+ window = create_window(notebook);

- create_window(notebook);
+ app = bluetooth_application_instance_new();
+ bluetooth_application_instance_set_window(app, GTK_WINDOW(window));
+ if(!bluetooth_application_instance_register(app, &retval, singleton,
+ "/org/bluez/Properties", "org.bluez.Properties"))
+ exit(retval);
+
+ manager = setup_manager(conn);

gtk_main();

@@ -181,6 +209,10 @@
g_object_unref(manager);

dbus_g_connection_unref(conn);
+
+ g_object_unref(app);

+ g_option_context_free(ctx);
+
return 0;
}
diff -urN gnome/wizard/bluetooth-wizard.1 gnome-new/wizard/bluetooth-wizard.1
--- gnome/wizard/bluetooth-wizard.1 2007-07-22 11:33:12.000000000 -0400
+++ gnome-new/wizard/bluetooth-wizard.1 2007-12-06 11:31:41.000000000 -0500
@@ -9,8 +9,9 @@
.I bluetooth-wizard
is part of bluez-gnome, see also http://www.bluez.org
.SH OPTIONS
-.I bluetooth-wizard
-takes no options
+.TP
+.BI \-\-singleton
+Ensure that only one instance is running.
.SH AUTHOR
Marcel Holtmann <marcel@holtmann.org>
.SH LICENSE
diff -urN gnome/wizard/main.c gnome-new/wizard/main.c
--- gnome/wizard/main.c 2007-08-15 03:04:03.000000000 -0400
+++ gnome-new/wizard/main.c 2007-12-06 11:16:03.000000000 -0500
@@ -26,6 +26,7 @@
#endif

#include <string.h>
+#include <stdlib.h>

#include <dbus/dbus-glib.h>

@@ -38,6 +39,7 @@
#include "dbus-glue.h"

#include "bluetooth-device-selection.h"
+#include "bluetooth-application-instance.h"

static BluetoothClient *client;

@@ -387,7 +389,7 @@
page_summary = vbox;
}

-static void create_wizard(void)
+static GtkWidget *create_wizard(void)
{
GtkWidget *assistant;

@@ -430,23 +432,56 @@
gtk_widget_show_all(assistant);

gtk_assistant_update_buttons_state(GTK_ASSISTANT(assistant));
+ return assistant;
}

int main(int argc, char *argv[])
{
+ GOptionContext *ctx;
+ GtkWidget *window;
+ BluetoothApplicationInstance *app;
+ GError *error = NULL;
+ int retval = 0;
+ gboolean singleton = FALSE;
+
+ GOptionEntry entries[] = {
+ { "singleton", 0, 0, G_OPTION_ARG_NONE, &singleton,
+ N_("Only allow one instance of this application"), NULL },
+ { NULL, 0, 0, 0, NULL, NULL, NULL }
+ };
+
bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
textdomain(GETTEXT_PACKAGE);

gtk_init(&argc, &argv);

+ ctx = g_option_context_new("");
+ g_option_context_add_main_entries(ctx, entries, NULL);
+ if (!g_option_context_parse(ctx, &argc, &argv, &error)) {
+ g_printerr(_("parsing failed: %s\n"), error->message);
+ g_error_free(error);
+ g_option_context_free(ctx);
+ return retval;
+ }
+
client = bluetooth_client_new();

- create_wizard();
+ window = create_wizard();
+
+ app = bluetooth_application_instance_new();
+ bluetooth_application_instance_set_window(app, GTK_WINDOW(window));
+ if(!bluetooth_application_instance_register(app, &retval, singleton,
+ "/org/bluez/Wizard", "org.bluez.Wizard"))
+ exit(retval);

gtk_main();

g_object_unref(client);

+ g_object_unref(app);
+
+ g_option_context_free(ctx);
+
return 0;
}

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