Increase the timeout for some GLib tests
[glib.git] / glib / tests / 642026.c
blob51eb2cac1750e75f8810027d794cc94612d14129
1 /*
2 * Author: Simon McVittie <simon.mcvittie@collabora.co.uk>
3 * Copyright © 2011 Nokia Corporation
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * See the included COPYING file for more information.
13 #define GLIB_DISABLE_DEPRECATION_WARNINGS
15 #include <glib.h>
17 /* On smcv's laptop, 1e4 iterations didn't always exhibit the bug, but 1e5
18 * iterations exhibited it 10/10 times in practice. YMMV. */
19 #define ITERATIONS 100000
21 static GStaticPrivate sp;
22 static GMutex *mutex;
23 static GCond *cond;
24 static guint i;
26 static volatile gint freed = 0;
28 static void
29 notify (gpointer p)
31 if (!g_atomic_int_compare_and_exchange (&freed, 0, 1))
33 g_error ("someone already freed it after %u iterations", i);
37 static gpointer thread_func (gpointer nil)
39 /* wait for main thread to reach its g_cond_wait call */
40 g_mutex_lock (mutex);
42 g_static_private_set (&sp, &sp, notify);
43 g_cond_broadcast (cond);
44 g_mutex_unlock (mutex);
46 return nil;
49 static void
50 testcase (void)
52 g_test_bug ("642026");
54 mutex = g_mutex_new ();
55 cond = g_cond_new ();
57 g_mutex_lock (mutex);
59 for (i = 0; i < ITERATIONS; i++)
61 GThread *t1;
63 g_static_private_init (&sp);
64 freed = 0;
66 t1 = g_thread_create (thread_func, NULL, TRUE, NULL);
67 g_assert (t1 != NULL);
69 /* wait for t1 to set up its thread-private data */
70 g_cond_wait (cond, mutex);
72 /* exercise the bug, by racing with t1 to free the private data */
73 g_static_private_free (&sp);
74 g_thread_join (t1);
77 g_cond_free (cond);
78 g_mutex_unlock (mutex);
79 g_mutex_free (mutex);
82 int
83 main (int argc,
84 char **argv)
86 g_test_init (&argc, &argv, NULL);
87 g_test_bug_base ("https://bugzilla.gnome.org/show_bug.cgi?id=");
89 g_test_add_func ("/glib/642026", testcase);
91 return g_test_run ();