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/* Regression test for object registration and unregistration
*
* Copyright © 2009 Collabora Ltd. <http://www.collabora.co.uk/>
* Copyright © 2009-2011 Nokia Corporation
*
* SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later OR MIT
*
* In preparation for dbus-glib relicensing (if it ever happens), this file is
* licensed under (at your option) either the AFL v2.1, the GPL v2 or later,
* or an MIT/X11-style license:
*
* Licensed under the Academic Free License version 2.1
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <config.h>
#include <dbus/dbus-glib.h>
#include <dbus/dbus-glib-lowlevel.h>
#include "dbus-gmain/tests/util.h"
GMainLoop *loop = NULL;
typedef struct {
DBusGConnection *bus;
DBusGConnection *bus2;
} Fixture;
static void
setup (Fixture *f,
gconstpointer path_to_use)
{
f->bus = dbus_g_bus_get_private (DBUS_BUS_SESSION, NULL, NULL);
g_assert_nonnull (f->bus);
f->bus2 = dbus_g_bus_get_private (DBUS_BUS_SESSION, NULL, NULL);
g_assert_nonnull (f->bus2);
}
static void
teardown (Fixture *f,
gconstpointer test_data G_GNUC_UNUSED)
{
if (f->bus != NULL)
{
test_run_until_disconnected (dbus_g_connection_get_connection (f->bus), NULL);
dbus_g_connection_unref (f->bus);
}
if (f->bus2 != NULL)
{
test_run_until_disconnected (dbus_g_connection_get_connection (f->bus2), NULL);
dbus_g_connection_unref (f->bus2);
}
dbus_shutdown ();
}
static void
destroy_cb (DBusGProxy *proxy G_GNUC_UNUSED,
gpointer user_data)
{
gboolean *destroyed = user_data;
*destroyed = TRUE;
}
static void
test_name_owner_changed (Fixture *f,
gconstpointer test_data G_GNUC_UNUSED)
{
DBusGProxy *peer;
DBusGProxy *named;
gboolean destroyed = FALSE;
g_test_bug ("41126");
/* bus has a proxy for bus2... */
named = dbus_g_proxy_new_for_name (f->bus,
dbus_bus_get_unique_name (dbus_g_connection_get_connection (f->bus2)),
"/", "org.freedesktop.DBus.Peer");
/* ... and also a proxy for the peer (i.e. the dbus-daemon) */
peer = dbus_g_proxy_new_for_peer (f->bus, "/", "org.freedesktop.DBus.Peer");
g_signal_connect (G_OBJECT (named), "destroy", G_CALLBACK (destroy_cb),
&destroyed);
/* Disconnect bus2, to provoke a NameOwnerChanged signal on bus */
test_run_until_disconnected (dbus_g_connection_get_connection (f->bus2), NULL);
dbus_g_connection_unref (f->bus2);
f->bus2 = NULL;
/* Wait for that NameOwnerChanged to be processed */
while (!destroyed)
g_main_context_iteration (NULL, TRUE);
g_signal_handlers_disconnect_by_func (named, destroy_cb, &destroyed);
/* The first part of the bug was that we'd never get here, because checking
* whether 'peer' was affected by the NameOwnerChanged caused a NULL
* dereference and segfault. If we get here, all is OK.
*
* The second part of the bug was that if the last proxy in existence was
* for a peer, when it was unregistered there would be no owner_match_rules,
* causing a crash. Unref named before peer, to exercise that. */
g_object_unref (named);
g_object_unref (peer);
}
int
main (int argc, char **argv)
{
g_setenv ("DBUS_FATAL_WARNINGS", "1", TRUE);
g_type_init ();
g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL);
dbus_g_type_specialized_init ();
g_test_bug_base ("https://bugs.freedesktop.org/show_bug.cgi?id=");
g_test_init (&argc, &argv, NULL);
g_test_add ("/peer-on-bus/name-owner-changed", Fixture, NULL,
setup, test_name_owner_changed, teardown);
return g_test_run ();
}
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