1 /* Test case for GNOME #651133
2 *
3 * Copyright (C) 2008-2010 Red Hat, Inc.
4 * Copyright (C) 2011 Nokia Corporation
5 *
6 * SPDX-License-Identifier: LGPL-2.1-or-later
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General
19 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 *
21 * Author: Simon McVittie <simon.mcvittie@collabora.co.uk>
22 */
23
24 #include <config.h>
25
26 #include <unistd.h>
27 #include <string.h>
28
29 #include <gio/gio.h>
30
31 #include "gdbus-tests.h"
32
33 #ifdef HAVE_DBUS1
34 # include <dbus/dbus-shared.h>
35 #else
36 # define DBUS_INTERFACE_DBUS "org.freedesktop.DBus"
37 # define DBUS_PATH_DBUS "/org/freedesktop/DBus"
38 # define DBUS_SERVICE_DBUS "org.freedesktop.DBus"
39 # define DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER 1
40 # define DBUS_RELEASE_NAME_REPLY_RELEASED 1
41 #endif
42
43 #define MY_NAME "com.example.Test.Myself"
44 /* This many threads create and destroy GDBusProxy instances, in addition
45 * to the main thread processing their NameOwnerChanged signals.
46 * N_THREADS_MAX is used with "-m slow", N_THREADS otherwise.
47 */
48 #define N_THREADS_MAX 10
49 #define N_THREADS 2
50 /* This many GDBusProxy instances are created by each thread. */
51 #define N_REPEATS 100
52 /* The main thread requests/releases a name this many times as rapidly as
53 * possible, before performing one "slow" cycle that waits for each method
54 * call result (and therefore, due to D-Bus total ordering, all previous
55 * method calls) to prevent requests from piling up infinitely. The more calls
56 * are made rapidly, the better we reproduce bugs.
57 */
58 #define N_RAPID_CYCLES 50
59
60 static GMainLoop *loop;
61
62 static gpointer
63 run_proxy_thread (gpointer data)
64 {
65 GDBusConnection *connection = data;
66 int i;
67
68 g_assert (g_main_context_get_thread_default () == NULL);
69
70 for (i = 0; i < N_REPEATS; i++)
71 {
72 GDBusProxy *proxy;
73 GError *error = NULL;
74 GVariant *ret;
75
76 if (g_test_verbose ())
77 g_printerr (".");
78
79 proxy = g_dbus_proxy_new_sync (connection,
80 G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START |
81 G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
82 NULL,
83 MY_NAME,
84 "/com/example/TestObject",
85 "com.example.Frob",
86 NULL,
87 &error);
88 g_assert_no_error (error);
89 g_assert (proxy != NULL);
90 g_dbus_proxy_set_default_timeout (proxy, G_MAXINT);
91
92 ret = g_dbus_proxy_call_sync (proxy, "StupidMethod", NULL,
93 G_DBUS_CALL_FLAGS_NO_AUTO_START, -1,
94 NULL, NULL);
95 /*
96 * we expect this to fail - if we have the name at the moment, we called
97 * an unimplemented method, and if not, there was nothing to call
98 */
99 g_assert (ret == NULL);
100
101 /*
102 * this races with the NameOwnerChanged signal being emitted in an
103 * idle
104 */
105 g_object_unref (proxy);
106 }
107
108 g_main_loop_quit (loop);
109 return NULL;
110 }
111
112 static void release_name (GDBusConnection *connection, gboolean wait);
113
114 static void
115 request_name_cb (GObject *source,
116 GAsyncResult *res,
117 gpointer user_data)
118 {
119 GDBusConnection *connection = G_DBUS_CONNECTION (source);
120 GError *error = NULL;
121 GVariant *var;
122 GVariant *child;
123
124 var = g_dbus_connection_call_finish (connection, res, &error);
125 g_assert_no_error (error);
126 child = g_variant_get_child_value (var, 0);
127 g_assert_cmpuint (g_variant_get_uint32 (child),
128 ==, DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER);
129
130 release_name (connection, TRUE);
131 g_variant_unref (child);
132 g_variant_unref (var);
133 }
134
135 static void
136 request_name (GDBusConnection *connection,
137 gboolean wait)
138 {
139 g_dbus_connection_call (connection,
140 DBUS_SERVICE_DBUS,
141 DBUS_PATH_DBUS,
142 DBUS_INTERFACE_DBUS,
143 "RequestName",
144 g_variant_new ("(su)", MY_NAME, 0),
145 G_VARIANT_TYPE ("(u)"),
146 G_DBUS_CALL_FLAGS_NONE,
147 -1,
148 NULL,
149 wait ? request_name_cb : NULL,
150 NULL);
151 }
152
153 static void
154 release_name_cb (GObject *source,
155 GAsyncResult *res,
156 gpointer user_data)
157 {
158 GDBusConnection *connection = G_DBUS_CONNECTION (source);
159 GError *error = NULL;
160 GVariant *var;
161 GVariant *child;
162 int i;
163
164 var = g_dbus_connection_call_finish (connection, res, &error);
165 g_assert_no_error (error);
166 child = g_variant_get_child_value (var, 0);
167 g_assert_cmpuint (g_variant_get_uint32 (child),
168 ==, DBUS_RELEASE_NAME_REPLY_RELEASED);
169
170 /* generate some rapid NameOwnerChanged signals to try to trigger crashes */
171 for (i = 0; i < N_RAPID_CYCLES; i++)
172 {
173 request_name (connection, FALSE);
174 release_name (connection, FALSE);
175 }
176
177 /* wait for dbus-daemon to catch up */
178 request_name (connection, TRUE);
179 g_variant_unref (child);
180 g_variant_unref (var);
181 }
182
183 static void
184 release_name (GDBusConnection *connection,
185 gboolean wait)
186 {
187 g_dbus_connection_call (connection,
188 DBUS_SERVICE_DBUS,
189 DBUS_PATH_DBUS,
190 DBUS_INTERFACE_DBUS,
191 "ReleaseName",
192 g_variant_new ("(s)", MY_NAME),
193 G_VARIANT_TYPE ("(u)"),
194 G_DBUS_CALL_FLAGS_NONE,
195 -1,
196 NULL,
197 wait ? release_name_cb : NULL,
198 NULL);
199 }
200
201 static void
202 test_proxy (void)
203 {
204 GDBusConnection *connection;
205 GError *error = NULL;
206 GThread *proxy_threads[N_THREADS_MAX];
207 int i;
208 int n_threads;
209
210 if (g_test_slow ())
211 n_threads = N_THREADS_MAX;
212 else
213 n_threads = N_THREADS;
214
215 session_bus_up ();
216
217 loop = g_main_loop_new (NULL, TRUE);
218
219 connection = g_bus_get_sync (G_BUS_TYPE_SESSION,
220 NULL,
221 &error);
222 g_assert_no_error (error);
223
224 request_name (connection, TRUE);
225
226 for (i = 0; i < n_threads; i++)
227 {
228 proxy_threads[i] = g_thread_new ("run-proxy",
229 run_proxy_thread, connection);
230 }
231
232 g_main_loop_run (loop);
233
234 for (i = 0; i < n_threads; i++)
235 {
236 g_thread_join (proxy_threads[i]);
237 }
238
239 g_object_unref (connection);
240 g_main_loop_unref (loop);
241
242 /* TODO: should call session_bus_down() but that requires waiting
243 * for all the outstanding method calls to complete...
244 */
245 if (g_test_verbose ())
246 g_printerr ("\n");
247 }
248
249 int
250 main (int argc,
251 char *argv[])
252 {
253 g_test_init (&argc, &argv, G_TEST_OPTION_ISOLATE_DIRS, NULL);
254
255 g_test_dbus_unset ();
256
257 g_test_add_func ("/gdbus/proxy/vs-threads", test_proxy);
258
259 return g_test_run();
260 }