1 /* Unit tests for GRecMutex
2 * Copyright (C) 2011 Red Hat, Inc
3 * Author: Matthias Clasen
5 * This work is provided "as is"; redistribution and modification
6 * in whole or in part, in any medium, physical or electronic is
7 * permitted without restriction.
9 * This work is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * In no event shall the authors or contributors be liable for any
14 * direct, indirect, incidental, special, exemplary, or consequential
15 * damages (including, but not limited to, procurement of substitute
16 * goods or services; loss of use, data, or profits; or business
17 * interruption) however caused and on any theory of liability, whether
18 * in contract, strict liability, or tort (including negligence or
19 * otherwise) arising in any way out of the use of this software, even
20 * if advised of the possibility of such damage.
26 test_rec_mutex1 (void)
30 g_rec_mutex_init (&mutex);
31 g_rec_mutex_lock (&mutex);
32 g_rec_mutex_unlock (&mutex);
33 g_rec_mutex_lock (&mutex);
34 g_rec_mutex_unlock (&mutex);
35 g_rec_mutex_clear (&mutex);
39 test_rec_mutex2 (void)
41 static GRecMutex mutex;
43 g_rec_mutex_lock (&mutex);
44 g_rec_mutex_unlock (&mutex);
45 g_rec_mutex_lock (&mutex);
46 g_rec_mutex_unlock (&mutex);
50 test_rec_mutex3 (void)
52 static GRecMutex mutex;
55 ret = g_rec_mutex_trylock (&mutex);
58 ret = g_rec_mutex_trylock (&mutex);
61 g_rec_mutex_unlock (&mutex);
62 g_rec_mutex_unlock (&mutex);
66 #define ITERATIONS 10000
70 GThread *owners[LOCKS];
71 GRecMutex locks[LOCKS];
78 self = g_thread_self ();
80 if (!g_rec_mutex_trylock (&locks[nr]))
82 if (g_test_verbose ())
83 g_print ("thread %p going to block on lock %d\n", self, nr);
85 g_rec_mutex_lock (&locks[nr]);
88 g_assert (owners[nr] == NULL); /* hopefully nobody else is here */
91 /* let some other threads try to ruin our day */
95 g_assert (owners[nr] == self); /* hopefully this is still us... */
97 if (g_test_verbose ())
98 g_print ("thread %p recursively taking lock %d\n", self, nr);
100 g_rec_mutex_lock (&locks[nr]); /* we're recursive, after all */
102 g_assert (owners[nr] == self); /* hopefully this is still us... */
104 g_rec_mutex_unlock (&locks[nr]);
109 g_assert (owners[nr] == self); /* hopefully this is still us... */
110 owners[nr] = NULL; /* make way for the next guy */
112 g_rec_mutex_unlock (&locks[nr]);
116 thread_func (gpointer data)
121 rand = g_rand_new ();
123 for (i = 0; i < ITERATIONS; i++)
124 acquire (g_rand_int_range (rand, 0, LOCKS));
132 test_rec_mutex4 (void)
135 GThread *threads[THREADS];
137 for (i = 0; i < LOCKS; i++)
138 g_rec_mutex_init (&locks[i]);
140 for (i = 0; i < THREADS; i++)
141 threads[i] = g_thread_create (thread_func, NULL, TRUE, NULL);
143 for (i = 0; i < THREADS; i++)
144 g_thread_join (threads[i]);
146 for (i = 0; i < LOCKS; i++)
147 g_rec_mutex_clear (&locks[i]);
149 for (i = 0; i < LOCKS; i++)
150 g_assert (owners[i] == NULL);
154 main (int argc, char *argv[])
156 g_test_init (&argc, &argv, NULL);
158 g_test_add_func ("/thread/rec-mutex1", test_rec_mutex1);
159 g_test_add_func ("/thread/rec-mutex2", test_rec_mutex2);
160 g_test_add_func ("/thread/rec-mutex3", test_rec_mutex3);
161 g_test_add_func ("/thread/rec-mutex4", test_rec_mutex4);
163 return g_test_run ();