5 static const gchar *datapath;
6 static const gchar *test_file;
8 char *test_file_buffer;
10 static char async_read_buffer[8192];
13 read_data (GObject *source, GAsyncResult *result, gpointer loop)
15 GInputStream *in = G_INPUT_STREAM (source);
19 nread = g_input_stream_read_finish (in, result, &error);
20 g_assert_no_error (error);
22 g_assert_cmpint (nread, >, 0);
23 g_assert_cmpint (nread, <=, MIN(sizeof (async_read_buffer), test_file_size));
24 g_assert (memcmp (async_read_buffer, test_file_buffer, nread) == 0);
26 g_main_loop_quit (loop);
30 opened_for_read (GObject *source, GAsyncResult *result, gpointer loop)
32 GFile *file = G_FILE (source);
36 in = g_file_read_finish (file, result, &error);
37 g_assert_no_error (error);
39 memset (async_read_buffer, 0, sizeof (async_read_buffer));
40 g_input_stream_read_async (G_INPUT_STREAM (in),
41 async_read_buffer, sizeof (async_read_buffer),
42 G_PRIORITY_DEFAULT, NULL,
48 /* Test 1: Async I/O started in a thread with a thread-default context
49 * will stick to that thread, and will complete even if the default
50 * main loop is blocked. (NB: the last part would not be true if we
51 * were testing GFileMonitor!)
54 static gboolean idle_start_test1_thread (gpointer loop);
55 static gpointer test1_thread (gpointer user_data);
57 static gboolean test1_done;
58 static GCond test1_cond;
59 static GMutex test1_mutex;
62 test_thread_independence (void)
66 loop = g_main_loop_new (NULL, FALSE);
67 g_idle_add (idle_start_test1_thread, loop);
68 g_main_loop_run (loop);
69 g_main_loop_unref (loop);
73 idle_start_test1_thread (gpointer loop)
77 gboolean io_completed;
79 g_mutex_lock (&test1_mutex);
80 thread = g_thread_new ("test1", test1_thread, NULL);
82 time = g_get_monotonic_time () + 2 * G_TIME_SPAN_SECOND;
85 io_completed = g_cond_wait_until (&test1_cond, &test1_mutex, time);
86 g_assert (io_completed);
88 g_thread_join (thread);
90 g_mutex_unlock (&test1_mutex);
91 g_main_loop_quit (loop);
92 return G_SOURCE_REMOVE;
96 test1_thread (gpointer user_data)
98 GMainContext *context;
102 /* Wait for main thread to be waiting on test1_cond */
103 g_mutex_lock (&test1_mutex);
105 context = g_main_context_new ();
106 g_assert (g_main_context_get_thread_default () == NULL);
107 g_main_context_push_thread_default (context);
108 g_assert (g_main_context_get_thread_default () == context);
110 file = g_file_new_for_path (test_file);
111 g_assert (g_file_supports_thread_contexts (file));
113 loop = g_main_loop_new (context, FALSE);
114 g_file_read_async (file, G_PRIORITY_DEFAULT, NULL,
115 opened_for_read, loop);
116 g_object_unref (file);
117 g_main_loop_run (loop);
118 g_main_loop_unref (loop);
121 g_cond_signal (&test1_cond);
122 g_mutex_unlock (&test1_mutex);
124 g_main_context_pop_thread_default (context);
125 g_main_context_unref (context);
130 /* Test 2: If we push a thread-default context in the main thread, we
131 * can run async ops in that context without running the default
135 static gboolean test2_fail (gpointer user_data);
138 test_context_independence (void)
140 GMainContext *context;
143 guint default_timeout;
144 GSource *thread_default_timeout;
146 context = g_main_context_new ();
147 g_assert (g_main_context_get_thread_default () == NULL);
148 g_main_context_push_thread_default (context);
149 g_assert (g_main_context_get_thread_default () == context);
151 file = g_file_new_for_path (test_file);
152 g_assert (g_file_supports_thread_contexts (file));
154 /* Add a timeout to the main loop, to fail immediately if it gets run */
155 default_timeout = g_timeout_add_full (G_PRIORITY_HIGH, 0,
156 test2_fail, NULL, NULL);
157 /* Add a timeout to the alternate loop, to fail if the I/O *doesn't* run */
158 thread_default_timeout = g_timeout_source_new_seconds (2);
159 g_source_set_callback (thread_default_timeout, test2_fail, NULL, NULL);
160 g_source_attach (thread_default_timeout, context);
162 loop = g_main_loop_new (context, FALSE);
163 g_file_read_async (file, G_PRIORITY_DEFAULT, NULL,
164 opened_for_read, loop);
165 g_object_unref (file);
166 g_main_loop_run (loop);
167 g_main_loop_unref (loop);
169 g_source_remove (default_timeout);
170 g_source_destroy (thread_default_timeout);
171 g_source_unref (thread_default_timeout);
173 g_main_context_pop_thread_default (context);
174 g_main_context_unref (context);
178 test2_fail (gpointer user_data)
180 g_assert_not_reached ();
185 main (int argc, char **argv)
187 GError *error = NULL;
190 if (g_getenv ("G_TEST_DATA"))
191 datapath = g_getenv ("G_TEST_DATA");
195 g_test_init (&argc, &argv, NULL);
197 test_file = g_strconcat (datapath, "/contexts.c", NULL);
198 g_file_get_contents (test_file, &test_file_buffer,
199 &test_file_size, &error);
200 g_assert_no_error (error);
202 g_test_add_func ("/gio/contexts/thread-independence", test_thread_independence);
203 g_test_add_func ("/gio/contexts/context-independence", test_context_independence);
207 g_free (test_file_buffer);