*/
#include <glib.h>
+#include "glib-private.h"
+#include <string.h>
static gboolean cb (gpointer data)
{
g_assert (g_main_context_find_source_by_funcs_user_data (ctx, &funcs, NULL) == NULL);
id = g_source_attach (source, ctx);
- g_source_unref (source);
g_assert_cmpint (g_source_get_id (source), ==, id);
g_assert (g_main_context_find_source_by_id (ctx, id) == source);
g_assert_cmpint (g_source_get_priority (source), ==, G_PRIORITY_HIGH);
g_source_destroy (source);
+ g_assert (g_source_get_context (source) == ctx);
+ g_assert (g_main_context_find_source_by_id (ctx, id) == NULL);
+
g_main_context_unref (ctx);
+ if (g_test_undefined ())
+ {
+ g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
+ "*assertion*source->context != NULL*failed*");
+ g_assert (g_source_get_context (source) == NULL);
+ g_test_assert_expected_messages ();
+ }
+
+ g_source_unref (source);
+
ctx = g_main_context_default ();
source = g_source_new (&funcs, sizeof (GSource));
g_source_set_funcs (source, &funcs);
id = g_source_attach (source, ctx);
g_source_unref (source);
g_assert (g_source_remove_by_user_data (data));
+ g_assert (!g_source_remove_by_user_data ((gpointer)0x1234));
g_idle_add (cb, data);
g_assert (g_idle_remove_by_data (data));
g_main_loop_run (loop);
- /* this is a race condition; under some circumstances we might not get 10
- * 100ms runs in 1050 ms, so consider 9 as "close enough" */
- g_assert_cmpint (a, >=, 9);
+ /* We may be delayed for an arbitrary amount of time - for example,
+ * it's possible for all timeouts to fire exactly once.
+ */
+ g_assert_cmpint (a, >, 0);
+ g_assert_cmpint (a, >=, b);
+ g_assert_cmpint (b, >=, c);
+
g_assert_cmpint (a, <=, 10);
- g_assert_cmpint (b, ==, 4);
- g_assert_cmpint (c, ==, 3);
+ g_assert_cmpint (b, <=, 4);
+ g_assert_cmpint (c, <=, 3);
g_main_loop_unref (loop);
g_main_context_unref (ctx);
g_main_context_unref (ctx);
}
+static gboolean
+quit_loop (gpointer data)
+{
+ GMainLoop *loop = data;
+
+ g_main_loop_quit (loop);
+
+ return G_SOURCE_REMOVE;
+}
+
static gint count;
static gboolean
thread_func (gpointer data)
{
GMainContext *ctx = data;
+ GMainLoop *loop;
GSource *source;
g_main_context_push_thread_default (ctx);
+ loop = g_main_loop_new (ctx, FALSE);
g_mutex_lock (&mutex);
thread_ready = TRUE;
g_mutex_unlock (&mutex);
source = g_timeout_source_new (500);
- g_source_set_callback (source, (GSourceFunc)g_thread_exit, NULL, NULL);
+ g_source_set_callback (source, quit_loop, loop, NULL);
g_source_attach (source, ctx);
g_source_unref (source);
- while (TRUE)
- g_main_context_iteration (ctx, TRUE);
+ g_main_loop_run (loop);
+
+ g_main_context_pop_thread_default (ctx);
+ g_main_loop_unref (loop);
return NULL;
}
g_thread_join (thread);
g_assert_cmpint (count, ==, 3);
+
+ g_main_context_unref (ctx);
}
+/* We can't use timeout sources here because on slow or heavily-loaded
+ * machines, the test program might not get enough cycles to hit the
+ * timeouts at the expected times. So instead we define a source that
+ * is based on the number of GMainContext iterations.
+ */
+
+static gint counter;
+static gint64 last_counter_update;
+
+typedef struct {
+ GSource source;
+ gint interval;
+ gint timeout;
+} CounterSource;
+
static gboolean
-quit_loop (gpointer data)
+counter_source_prepare (GSource *source,
+ gint *timeout)
{
- GMainLoop *loop = data;
+ CounterSource *csource = (CounterSource *)source;
+ gint64 now;
+
+ now = g_source_get_time (source);
+ if (now != last_counter_update)
+ {
+ last_counter_update = now;
+ counter++;
+ }
+
+ *timeout = 1;
+ return counter >= csource->timeout;
+}
- g_main_loop_quit (loop);
+static gboolean
+counter_source_dispatch (GSource *source,
+ GSourceFunc callback,
+ gpointer user_data)
+{
+ CounterSource *csource = (CounterSource *) source;
+ gboolean again;
- return G_SOURCE_REMOVE;
+ again = callback (user_data);
+
+ if (again)
+ csource->timeout = counter + csource->interval;
+
+ return again;
+}
+
+static GSourceFuncs counter_source_funcs = {
+ counter_source_prepare,
+ NULL,
+ counter_source_dispatch,
+ NULL,
+};
+
+static GSource *
+counter_source_new (gint interval)
+{
+ GSource *source = g_source_new (&counter_source_funcs, sizeof (CounterSource));
+ CounterSource *csource = (CounterSource *) source;
+
+ csource->interval = interval;
+ csource->timeout = counter + interval;
+
+ return source;
}
+
static gboolean
run_inner_loop (gpointer user_data)
{
a++;
inner = g_main_loop_new (ctx, FALSE);
- timeout = g_timeout_source_new (100);
+ timeout = counter_source_new (100);
g_source_set_callback (timeout, quit_loop, inner, NULL);
g_source_attach (timeout, ctx);
+ g_source_unref (timeout);
g_main_loop_run (inner);
g_main_loop_unref (inner);
a = b = c = 0;
- parent = g_timeout_source_new (2000);
+ parent = counter_source_new (2000);
g_source_set_callback (parent, run_inner_loop, ctx, NULL);
g_source_set_priority (parent, G_PRIORITY_LOW);
g_source_attach (parent, ctx);
- child_b = g_timeout_source_new (250);
+ child_b = counter_source_new (250);
g_source_set_callback (child_b, count_calls, &b, NULL);
g_source_add_child_source (parent, child_b);
- child_c = g_timeout_source_new (330);
+ child_c = counter_source_new (330);
g_source_set_callback (child_c, count_calls, &c, NULL);
g_source_set_priority (child_c, G_PRIORITY_HIGH);
g_source_add_child_source (parent, child_c);
g_assert_cmpint (g_source_get_priority (child_b), ==, G_PRIORITY_DEFAULT);
g_assert_cmpint (g_source_get_priority (child_c), ==, G_PRIORITY_DEFAULT);
- end = g_timeout_source_new (1050);
+ end = counter_source_new (1050);
g_source_set_callback (end, quit_loop, loop, NULL);
g_source_attach (end, ctx);
g_source_unref (end);
g_assert_cmpint (b, ==, 3);
g_assert_cmpint (c, ==, 3);
+ g_source_destroy (parent);
g_source_unref (parent);
g_source_unref (child_b);
g_source_unref (child_c);
a = b = c = 0;
- parent = g_timeout_source_new (500);
+ parent = counter_source_new (500);
g_source_set_callback (parent, count_calls, &a, NULL);
- child_b = g_timeout_source_new (220);
+ child_b = counter_source_new (220);
g_source_set_callback (child_b, count_calls, &b, NULL);
g_source_add_child_source (parent, child_b);
- child_c = g_timeout_source_new (430);
+ child_c = counter_source_new (430);
g_source_set_callback (child_c, count_calls, &c, NULL);
g_source_add_child_source (child_b, child_c);
g_source_attach (parent, ctx);
- end = g_timeout_source_new (2010);
+ end = counter_source_new (2010);
g_source_set_callback (end, (GSourceFunc)g_main_loop_quit, loop, NULL);
g_source_attach (end, ctx);
g_source_unref (end);
g_main_loop_run (loop);
/* Sequence of events:
- * 220 b (b = 440, a = 720)
- * 430 c (c = 860, b = 650, a = 930)
- * 650 b (b = 870, a = 1150)
- * 860 c (c = 1290, b = 1080, a = 1360)
- * 1080 b (b = 1300, a = 1580)
- * 1290 c (c = 1720, b = 1510, a = 1790)
- * 1510 b (b = 1730, a = 2010)
- * 1720 c (c = 2150, b = 1940, a = 2220)
- * 1940 b (b = 2160, a = 2440)
+ * 220 b (b -> 440, a -> 720)
+ * 430 c (c -> 860, b -> 650, a -> 930)
+ * 650 b (b -> 870, a -> 1150)
+ * 860 c (c -> 1290, b -> 1080, a -> 1360)
+ * 1080 b (b -> 1300, a -> 1580)
+ * 1290 c (c -> 1720, b -> 1510, a -> 1790)
+ * 1510 b (b -> 1730, a -> 2010)
+ * 1720 c (c -> 2150, b -> 1940, a -> 2220)
+ * 1940 b (b -> 2160, a -> 2440)
*/
g_assert_cmpint (a, ==, 9);
g_assert_cmpint (b, ==, 9);
g_assert_cmpint (c, ==, 4);
+ g_source_destroy (parent);
g_source_unref (parent);
g_source_unref (child_b);
g_source_unref (child_c);
g_main_context_unref (ctx);
}
+typedef struct {
+ GSource *parent, *old_child, *new_child;
+ GMainLoop *loop;
+} SwappingTestData;
+
+static gboolean
+swap_sources (gpointer user_data)
+{
+ SwappingTestData *data = user_data;
+
+ if (data->old_child)
+ {
+ g_source_remove_child_source (data->parent, data->old_child);
+ g_clear_pointer (&data->old_child, g_source_unref);
+ }
+
+ if (!data->new_child)
+ {
+ data->new_child = g_timeout_source_new (0);
+ g_source_set_callback (data->new_child, quit_loop, data->loop, NULL);
+ g_source_add_child_source (data->parent, data->new_child);
+ }
+
+ return G_SOURCE_CONTINUE;
+}
+
+static gboolean
+assert_not_reached_callback (gpointer user_data)
+{
+ g_assert_not_reached ();
+
+ return G_SOURCE_REMOVE;
+}
+
+static void
+test_swapping_child_sources (void)
+{
+ GMainContext *ctx;
+ GMainLoop *loop;
+ SwappingTestData data;
+
+ ctx = g_main_context_new ();
+ loop = g_main_loop_new (ctx, FALSE);
+
+ data.parent = counter_source_new (50);
+ data.loop = loop;
+ g_source_set_callback (data.parent, swap_sources, &data, NULL);
+ g_source_attach (data.parent, ctx);
+
+ data.old_child = counter_source_new (100);
+ g_source_add_child_source (data.parent, data.old_child);
+ g_source_set_callback (data.old_child, assert_not_reached_callback, NULL, NULL);
+
+ data.new_child = NULL;
+ g_main_loop_run (loop);
+
+ g_source_destroy (data.parent);
+ g_source_unref (data.parent);
+ g_source_unref (data.new_child);
+
+ g_main_loop_unref (loop);
+ g_main_context_unref (ctx);
+}
+
+static gboolean
+add_source_callback (gpointer user_data)
+{
+ GMainLoop *loop = user_data;
+ GSource *self = g_main_current_source (), *child;
+ GIOChannel *io;
+
+ /* It doesn't matter whether this is a valid fd or not; it never
+ * actually gets polled; the test is just checking that
+ * g_source_add_child_source() doesn't crash.
+ */
+ io = g_io_channel_unix_new (0);
+ child = g_io_create_watch (io, G_IO_IN);
+ g_source_add_child_source (self, child);
+ g_source_unref (child);
+ g_io_channel_unref (io);
+
+ g_main_loop_quit (loop);
+ return FALSE;
+}
+
+static void
+test_blocked_child_sources (void)
+{
+ GMainContext *ctx;
+ GMainLoop *loop;
+ GSource *source;
+
+ g_test_bug ("701283");
+
+ ctx = g_main_context_new ();
+ loop = g_main_loop_new (ctx, FALSE);
+
+ source = g_idle_source_new ();
+ g_source_set_callback (source, add_source_callback, loop, NULL);
+ g_source_attach (source, ctx);
+
+ g_main_loop_run (loop);
+
+ g_source_destroy (source);
+ g_source_unref (source);
+
+ g_main_loop_unref (loop);
+ g_main_context_unref (ctx);
+}
+
+typedef struct {
+ GMainContext *ctx;
+ GMainLoop *loop;
+
+ GSource *timeout1, *timeout2;
+ gint64 time1;
+ GTimeVal tv;
+} TimeTestData;
+
+static gboolean
+timeout1_callback (gpointer user_data)
+{
+ TimeTestData *data = user_data;
+ GSource *source;
+ gint64 mtime1, mtime2, time2;
+
+ source = g_main_current_source ();
+ g_assert (source == data->timeout1);
+
+ if (data->time1 == -1)
+ {
+ /* First iteration */
+ g_assert (!g_source_is_destroyed (data->timeout2));
+
+ mtime1 = g_get_monotonic_time ();
+ data->time1 = g_source_get_time (source);
+
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
+ g_source_get_current_time (source, &data->tv);
+G_GNUC_END_IGNORE_DEPRECATIONS
+
+ /* g_source_get_time() does not change during a single callback */
+ g_usleep (1000000);
+ mtime2 = g_get_monotonic_time ();
+ time2 = g_source_get_time (source);
+
+ g_assert_cmpint (mtime1, <, mtime2);
+ g_assert_cmpint (data->time1, ==, time2);
+ }
+ else
+ {
+ GTimeVal tv;
+
+ /* Second iteration */
+ g_assert (g_source_is_destroyed (data->timeout2));
+
+ /* g_source_get_time() MAY change between iterations; in this
+ * case we know for sure that it did because of the g_usleep()
+ * last time.
+ */
+ time2 = g_source_get_time (source);
+ g_assert_cmpint (data->time1, <, time2);
+
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
+ g_source_get_current_time (source, &tv);
+G_GNUC_END_IGNORE_DEPRECATIONS
+
+ g_assert (tv.tv_sec > data->tv.tv_sec ||
+ (tv.tv_sec == data->tv.tv_sec &&
+ tv.tv_usec > data->tv.tv_usec));
+
+ g_main_loop_quit (data->loop);
+ }
+
+ return TRUE;
+}
+
+static gboolean
+timeout2_callback (gpointer user_data)
+{
+ TimeTestData *data = user_data;
+ GSource *source;
+ gint64 time2, time3;
+
+ source = g_main_current_source ();
+ g_assert (source == data->timeout2);
+
+ g_assert (!g_source_is_destroyed (data->timeout1));
+
+ /* g_source_get_time() does not change between different sources in
+ * a single iteration of the mainloop.
+ */
+ time2 = g_source_get_time (source);
+ g_assert_cmpint (data->time1, ==, time2);
+
+ /* The source should still have a valid time even after being
+ * destroyed, since it's currently running.
+ */
+ g_source_destroy (source);
+ time3 = g_source_get_time (source);
+ g_assert_cmpint (time2, ==, time3);
+
+ return FALSE;
+}
+
+static void
+test_source_time (void)
+{
+ TimeTestData data;
+
+ data.ctx = g_main_context_new ();
+ data.loop = g_main_loop_new (data.ctx, FALSE);
+
+ data.timeout1 = g_timeout_source_new (0);
+ g_source_set_callback (data.timeout1, timeout1_callback, &data, NULL);
+ g_source_attach (data.timeout1, data.ctx);
+
+ data.timeout2 = g_timeout_source_new (0);
+ g_source_set_callback (data.timeout2, timeout2_callback, &data, NULL);
+ g_source_attach (data.timeout2, data.ctx);
+
+ data.time1 = -1;
+
+ g_main_loop_run (data.loop);
+
+ g_assert (!g_source_is_destroyed (data.timeout1));
+ g_assert (g_source_is_destroyed (data.timeout2));
+
+ g_source_destroy (data.timeout1);
+ g_source_unref (data.timeout1);
+ g_source_unref (data.timeout2);
+
+ g_main_loop_unref (data.loop);
+ g_main_context_unref (data.ctx);
+}
+
+typedef struct {
+ guint outstanding_ops;
+ GMainLoop *loop;
+} TestOverflowData;
+
+static gboolean
+on_source_fired_cb (gpointer user_data)
+{
+ TestOverflowData *data = user_data;
+ GSource *current_source;
+ GMainContext *current_context;
+ guint source_id;
+
+ data->outstanding_ops--;
+
+ current_source = g_main_current_source ();
+ current_context = g_source_get_context (current_source);
+ source_id = g_source_get_id (current_source);
+ g_assert (g_main_context_find_source_by_id (current_context, source_id) != NULL);
+ g_source_destroy (current_source);
+ g_assert (g_main_context_find_source_by_id (current_context, source_id) == NULL);
+
+ if (data->outstanding_ops == 0)
+ g_main_loop_quit (data->loop);
+ return FALSE;
+}
+
+static GSource *
+add_idle_source (GMainContext *ctx,
+ TestOverflowData *data)
+{
+ GSource *source;
+
+ source = g_idle_source_new ();
+ g_source_set_callback (source, on_source_fired_cb, data, NULL);
+ g_source_attach (source, ctx);
+ g_source_unref (source);
+ data->outstanding_ops++;
+
+ return source;
+}
+
+static void
+test_mainloop_overflow (void)
+{
+ GMainContext *ctx;
+ GMainLoop *loop;
+ GSource *source;
+ TestOverflowData data;
+ guint i;
+
+ g_test_bug ("687098");
+
+ memset (&data, 0, sizeof (data));
+
+ ctx = GLIB_PRIVATE_CALL (g_main_context_new_with_next_id) (G_MAXUINT-1);
+
+ loop = g_main_loop_new (ctx, TRUE);
+ data.outstanding_ops = 0;
+ data.loop = loop;
+
+ source = add_idle_source (ctx, &data);
+ g_assert_cmpint (source->source_id, ==, G_MAXUINT-1);
+
+ source = add_idle_source (ctx, &data);
+ g_assert_cmpint (source->source_id, ==, G_MAXUINT);
+
+ source = add_idle_source (ctx, &data);
+ g_assert_cmpint (source->source_id, !=, 0);
+
+ /* Now, a lot more sources */
+ for (i = 0; i < 50; i++)
+ {
+ source = add_idle_source (ctx, &data);
+ g_assert_cmpint (source->source_id, !=, 0);
+ }
+
+ g_main_loop_run (loop);
+ g_assert_cmpint (data.outstanding_ops, ==, 0);
+
+ g_main_loop_unref (loop);
+ g_main_context_unref (ctx);
+}
+
+static volatile gint ready_time_dispatched;
+
+static gboolean
+ready_time_dispatch (GSource *source,
+ GSourceFunc callback,
+ gpointer user_data)
+{
+ g_atomic_int_set (&ready_time_dispatched, TRUE);
+
+ g_source_set_ready_time (source, -1);
+
+ return TRUE;
+}
+
+static gpointer
+run_context (gpointer user_data)
+{
+ g_main_loop_run (user_data);
+
+ return NULL;
+}
+
+static void
+test_ready_time (void)
+{
+ GThread *thread;
+ GSource *source;
+ GSourceFuncs source_funcs = {
+ NULL, NULL, ready_time_dispatch
+ };
+ GMainLoop *loop;
+
+ source = g_source_new (&source_funcs, sizeof (GSource));
+ g_source_attach (source, NULL);
+ g_source_unref (source);
+
+ /* Unfortunately we can't do too many things with respect to timing
+ * without getting into trouble on slow systems or heavily loaded
+ * builders.
+ *
+ * We can test that the basics are working, though.
+ */
+
+ /* A source with no ready time set should not fire */
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+ while (g_main_context_iteration (NULL, FALSE));
+ g_assert (!ready_time_dispatched);
+
+ /* The ready time should not have been changed */
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+
+ /* Of course this shouldn't change anything either */
+ g_source_set_ready_time (source, -1);
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+
+ /* A source with a ready time set to tomorrow should not fire on any
+ * builder, no matter how badly loaded...
+ */
+ g_source_set_ready_time (source, g_get_monotonic_time () + G_TIME_SPAN_DAY);
+ while (g_main_context_iteration (NULL, FALSE));
+ g_assert (!ready_time_dispatched);
+ /* Make sure it didn't get reset */
+ g_assert_cmpint (g_source_get_ready_time (source), !=, -1);
+
+ /* Ready time of -1 -> don't fire */
+ g_source_set_ready_time (source, -1);
+ while (g_main_context_iteration (NULL, FALSE));
+ g_assert (!ready_time_dispatched);
+ /* Not reset, but should still be -1 from above */
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+
+ /* A ready time of the current time should fire immediately */
+ g_source_set_ready_time (source, g_get_monotonic_time ());
+ while (g_main_context_iteration (NULL, FALSE));
+ g_assert (ready_time_dispatched);
+ ready_time_dispatched = FALSE;
+ /* Should have gotten reset by the handler function */
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+
+ /* As well as one in the recent past... */
+ g_source_set_ready_time (source, g_get_monotonic_time () - G_TIME_SPAN_SECOND);
+ while (g_main_context_iteration (NULL, FALSE));
+ g_assert (ready_time_dispatched);
+ ready_time_dispatched = FALSE;
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+
+ /* Zero is the 'official' way to get a source to fire immediately */
+ g_source_set_ready_time (source, 0);
+ while (g_main_context_iteration (NULL, FALSE));
+ g_assert (ready_time_dispatched);
+ ready_time_dispatched = FALSE;
+ g_assert_cmpint (g_source_get_ready_time (source), ==, -1);
+
+ /* Now do some tests of cross-thread wakeups.
+ *
+ * Make sure it wakes up right away from the start.
+ */
+ g_source_set_ready_time (source, 0);
+ loop = g_main_loop_new (NULL, FALSE);
+ thread = g_thread_new ("context thread", run_context, loop);
+ while (!g_atomic_int_get (&ready_time_dispatched));
+
+ /* Now let's see if it can wake up from sleeping. */
+ g_usleep (G_TIME_SPAN_SECOND / 2);
+ g_atomic_int_set (&ready_time_dispatched, FALSE);
+ g_source_set_ready_time (source, 0);
+ while (!g_atomic_int_get (&ready_time_dispatched));
+
+ /* kill the thread */
+ g_main_loop_quit (loop);
+ g_thread_join (thread);
+ g_main_loop_unref (loop);
+
+ g_source_destroy (source);
+}
+
+static void
+test_wakeup(void)
+{
+ GMainContext *ctx;
+ int i;
+
+ ctx = g_main_context_new ();
+
+ /* run a random large enough number of times because
+ * main contexts tend to wake up a few times after creation.
+ */
+ for (i = 0; i < 100; i++)
+ {
+ /* This is the invariant we care about:
+ * g_main_context_wakeup(ctx,) ensures that the next call to
+ * g_main_context_iteration (ctx, TRUE) returns and doesn't
+ * block.
+ * This is important in threaded apps where we might not know
+ * if the thread calls g_main_context_wakeup() before or after
+ * we enter g_main_context_iteration().
+ */
+ g_main_context_wakeup (ctx);
+ g_main_context_iteration (ctx, TRUE);
+ }
+
+ g_main_context_unref (ctx);
+}
+
+static void
+test_remove_invalid (void)
+{
+ g_test_expect_message ("GLib", G_LOG_LEVEL_CRITICAL, "Source ID 3000000000 was not found*");
+ g_source_remove (3000000000u);
+ g_test_assert_expected_messages ();
+}
+
+static gboolean
+trivial_prepare (GSource *source,
+ gint *timeout)
+{
+ *timeout = 0;
+ return TRUE;
+}
+
+static gint n_finalized;
+
+static void
+trivial_finalize (GSource *source)
+{
+ n_finalized++;
+}
+
+static void
+test_unref_while_pending (void)
+{
+ static GSourceFuncs funcs = { trivial_prepare, NULL, NULL, trivial_finalize };
+ GMainContext *context;
+ GSource *source;
+
+ context = g_main_context_new ();
+
+ source = g_source_new (&funcs, sizeof (GSource));
+ g_source_attach (source, context);
+ g_source_unref (source);
+
+ /* Do incomplete main iteration -- get a pending source but don't dispatch it. */
+ g_main_context_prepare (context, NULL);
+ g_main_context_query (context, 0, NULL, NULL, 0);
+ g_main_context_check (context, 1000, NULL, 0);
+
+ /* Destroy the context */
+ g_main_context_unref (context);
+
+ /* Make sure we didn't leak the source */
+ g_assert_cmpint (n_finalized, ==, 1);
+}
+
+#ifdef G_OS_UNIX
+
+#include <glib-unix.h>
+#include <unistd.h>
+
+static gchar zeros[1024];
+
+static gsize
+fill_a_pipe (gint fd)
+{
+ gsize written = 0;
+ GPollFD pfd;
+
+ pfd.fd = fd;
+ pfd.events = G_IO_OUT;
+ while (g_poll (&pfd, 1, 0) == 1)
+ /* we should never see -1 here */
+ written += write (fd, zeros, sizeof zeros);
+
+ return written;
+}
+
+static gboolean
+write_bytes (gint fd,
+ GIOCondition condition,
+ gpointer user_data)
+{
+ gssize *to_write = user_data;
+ gint limit;
+
+ if (*to_write == 0)
+ return FALSE;
+
+ /* Detect if we run before we should */
+ g_assert (*to_write >= 0);
+
+ limit = MIN (*to_write, sizeof zeros);
+ *to_write -= write (fd, zeros, limit);
+
+ return TRUE;
+}
+
+static gboolean
+read_bytes (gint fd,
+ GIOCondition condition,
+ gpointer user_data)
+{
+ static gchar buffer[1024];
+ gssize *to_read = user_data;
+
+ *to_read -= read (fd, buffer, sizeof buffer);
+
+ /* The loop will exit when there is nothing else to read, then we will
+ * use g_source_remove() to destroy this source.
+ */
+ return TRUE;
+}
+
+static void
+test_unix_fd (void)
+{
+ gssize to_write = -1;
+ gssize to_read;
+ gint fds[2];
+ gint a, b;
+ gint s;
+ GSource *source_a;
+ GSource *source_b;
+
+ s = pipe (fds);
+ g_assert (s == 0);
+
+ to_read = fill_a_pipe (fds[1]);
+ /* write at higher priority to keep the pipe full... */
+ a = g_unix_fd_add_full (G_PRIORITY_HIGH, fds[1], G_IO_OUT, write_bytes, &to_write, NULL);
+ source_a = g_source_ref (g_main_context_find_source_by_id (NULL, a));
+ /* make sure no 'writes' get dispatched yet */
+ while (g_main_context_iteration (NULL, FALSE));
+
+ to_read += 128 * 1024 * 1024;
+ to_write = 128 * 1024 * 1024;
+ b = g_unix_fd_add (fds[0], G_IO_IN, read_bytes, &to_read);
+ source_b = g_source_ref (g_main_context_find_source_by_id (NULL, b));
+
+ /* Assuming the kernel isn't internally 'laggy' then there will always
+ * be either data to read or room in which to write. That will keep
+ * the loop running until all data has been read and written.
+ */
+ while (TRUE)
+ {
+ gssize to_write_was = to_write;
+ gssize to_read_was = to_read;
+
+ if (!g_main_context_iteration (NULL, FALSE))
+ break;
+
+ /* Since the sources are at different priority, only one of them
+ * should possibly have run.
+ */
+ g_assert (to_write == to_write_was || to_read == to_read_was);
+ }
+
+ g_assert (to_write == 0);
+ g_assert (to_read == 0);
+
+ /* 'a' is already removed by itself */
+ g_assert (g_source_is_destroyed (source_a));
+ g_source_unref (source_a);
+ g_source_remove (b);
+ g_assert (g_source_is_destroyed (source_b));
+ g_source_unref (source_b);
+ close (fds[1]);
+ close (fds[0]);
+}
+
+static void
+assert_main_context_state (gint n_to_poll,
+ ...)
+{
+ GMainContext *context;
+ gboolean consumed[10] = { };
+ GPollFD poll_fds[10];
+ gboolean acquired;
+ gboolean immediate;
+ gint max_priority;
+ gint timeout;
+ gint n;
+ gint i, j;
+ va_list ap;
+
+ context = g_main_context_default ();
+
+ acquired = g_main_context_acquire (context);
+ g_assert (acquired);
+
+ immediate = g_main_context_prepare (context, &max_priority);
+ g_assert (!immediate);
+ n = g_main_context_query (context, max_priority, &timeout, poll_fds, 10);
+ g_assert_cmpint (n, ==, n_to_poll + 1); /* one will be the gwakeup */
+
+ va_start (ap, n_to_poll);
+ for (i = 0; i < n_to_poll; i++)
+ {
+ gint expected_fd = va_arg (ap, gint);
+ GIOCondition expected_events = va_arg (ap, GIOCondition);
+ GIOCondition report_events = va_arg (ap, GIOCondition);
+
+ for (j = 0; j < n; j++)
+ if (!consumed[j] && poll_fds[j].fd == expected_fd && poll_fds[j].events == expected_events)
+ {
+ poll_fds[j].revents = report_events;
+ consumed[j] = TRUE;
+ break;
+ }
+
+ if (j == n)
+ g_error ("Unable to find fd %d (index %d) with events 0x%x\n", expected_fd, i, (guint) expected_events);
+ }
+ va_end (ap);
+
+ /* find the gwakeup, flag as non-ready */
+ for (i = 0; i < n; i++)
+ if (!consumed[i])
+ poll_fds[i].revents = 0;
+
+ if (g_main_context_check (context, max_priority, poll_fds, n))
+ g_main_context_dispatch (context);
+
+ g_main_context_release (context);
+}
+
+static gboolean
+flag_bool (gint fd,
+ GIOCondition condition,
+ gpointer user_data)
+{
+ gboolean *flag = user_data;
+
+ *flag = TRUE;
+
+ return TRUE;
+}
+
+static void
+test_unix_fd_source (void)
+{
+ GSource *out_source;
+ GSource *in_source;
+ GSource *source;
+ gboolean out, in;
+ gint fds[2];
+ gint s;
+
+ assert_main_context_state (0);
+
+ s = pipe (fds);
+ g_assert (s == 0);
+
+ source = g_unix_fd_source_new (fds[1], G_IO_OUT);
+ g_source_attach (source, NULL);
+
+ /* Check that a source with no callback gets successfully detached
+ * with a warning printed.
+ */
+ g_test_expect_message ("GLib", G_LOG_LEVEL_WARNING, "*GUnixFDSource dispatched without callback*");
+ while (g_main_context_iteration (NULL, FALSE));
+ g_test_assert_expected_messages ();
+ g_assert (g_source_is_destroyed (source));
+ g_source_unref (source);
+
+ out = in = FALSE;
+ out_source = g_unix_fd_source_new (fds[1], G_IO_OUT);
+ g_source_set_callback (out_source, (GSourceFunc) flag_bool, &out, NULL);
+ g_source_attach (out_source, NULL);
+ assert_main_context_state (1,
+ fds[1], G_IO_OUT, 0);
+ g_assert (!in && !out);
+
+ in_source = g_unix_fd_source_new (fds[0], G_IO_IN);
+ g_source_set_callback (in_source, (GSourceFunc) flag_bool, &in, NULL);
+ g_source_set_priority (in_source, G_PRIORITY_DEFAULT_IDLE);
+ g_source_attach (in_source, NULL);
+ assert_main_context_state (2,
+ fds[0], G_IO_IN, G_IO_IN,
+ fds[1], G_IO_OUT, G_IO_OUT);
+ /* out is higher priority so only it should fire */
+ g_assert (!in && out);
+
+ /* raise the priority of the in source to higher than out*/
+ in = out = FALSE;
+ g_source_set_priority (in_source, G_PRIORITY_HIGH);
+ assert_main_context_state (2,
+ fds[0], G_IO_IN, G_IO_IN,
+ fds[1], G_IO_OUT, G_IO_OUT);
+ g_assert (in && !out);
+
+ /* now, let them be equal */
+ in = out = FALSE;
+ g_source_set_priority (in_source, G_PRIORITY_DEFAULT);
+ assert_main_context_state (2,
+ fds[0], G_IO_IN, G_IO_IN,
+ fds[1], G_IO_OUT, G_IO_OUT);
+ g_assert (in && out);
+
+ g_source_destroy (out_source);
+ g_source_unref (out_source);
+ g_source_destroy (in_source);
+ g_source_unref (in_source);
+ close (fds[1]);
+ close (fds[0]);
+}
+
+typedef struct
+{
+ GSource parent;
+ gboolean flagged;
+} FlagSource;
+
+static gboolean
+return_true (GSource *source, GSourceFunc callback, gpointer user_data)
+{
+ FlagSource *flag_source = (FlagSource *) source;
+
+ flag_source->flagged = TRUE;
+
+ return TRUE;
+}
+
+#define assert_flagged(s) g_assert (((FlagSource *) (s))->flagged);
+#define assert_not_flagged(s) g_assert (!((FlagSource *) (s))->flagged);
+#define clear_flag(s) ((FlagSource *) (s))->flagged = 0
+
+static void
+test_source_unix_fd_api (void)
+{
+ GSourceFuncs no_funcs = {
+ NULL, NULL, return_true
+ };
+ GSource *source_a;
+ GSource *source_b;
+ gpointer tag1, tag2;
+ gint fds_a[2];
+ gint fds_b[2];
+
+ pipe (fds_a);
+ pipe (fds_b);
+
+ source_a = g_source_new (&no_funcs, sizeof (FlagSource));
+ source_b = g_source_new (&no_funcs, sizeof (FlagSource));
+
+ /* attach a source with more than one fd */
+ g_source_add_unix_fd (source_a, fds_a[0], G_IO_IN);
+ g_source_add_unix_fd (source_a, fds_a[1], G_IO_OUT);
+ g_source_attach (source_a, NULL);
+ assert_main_context_state (2,
+ fds_a[0], G_IO_IN, 0,
+ fds_a[1], G_IO_OUT, 0);
+ assert_not_flagged (source_a);
+
+ /* attach a higher priority source with no fds */
+ g_source_set_priority (source_b, G_PRIORITY_HIGH);
+ g_source_attach (source_b, NULL);
+ assert_main_context_state (2,
+ fds_a[0], G_IO_IN, G_IO_IN,
+ fds_a[1], G_IO_OUT, 0);
+ assert_flagged (source_a);
+ assert_not_flagged (source_b);
+ clear_flag (source_a);
+
+ /* add some fds to the second source, while attached */
+ tag1 = g_source_add_unix_fd (source_b, fds_b[0], G_IO_IN);
+ tag2 = g_source_add_unix_fd (source_b, fds_b[1], G_IO_OUT);
+ assert_main_context_state (4,
+ fds_a[0], G_IO_IN, 0,
+ fds_a[1], G_IO_OUT, G_IO_OUT,
+ fds_b[0], G_IO_IN, 0,
+ fds_b[1], G_IO_OUT, G_IO_OUT);
+ /* only 'b' (higher priority) should have dispatched */
+ assert_not_flagged (source_a);
+ assert_flagged (source_b);
+ clear_flag (source_b);
+
+ /* change our events on b to the same as they were before */
+ g_source_modify_unix_fd (source_b, tag1, G_IO_IN);
+ g_source_modify_unix_fd (source_b, tag2, G_IO_OUT);
+ assert_main_context_state (4,
+ fds_a[0], G_IO_IN, 0,
+ fds_a[1], G_IO_OUT, G_IO_OUT,
+ fds_b[0], G_IO_IN, 0,
+ fds_b[1], G_IO_OUT, G_IO_OUT);
+ assert_not_flagged (source_a);
+ assert_flagged (source_b);
+ clear_flag (source_b);
+
+ /* now reverse them */
+ g_source_modify_unix_fd (source_b, tag1, G_IO_OUT);
+ g_source_modify_unix_fd (source_b, tag2, G_IO_IN);
+ assert_main_context_state (4,
+ fds_a[0], G_IO_IN, 0,
+ fds_a[1], G_IO_OUT, G_IO_OUT,
+ fds_b[0], G_IO_OUT, 0,
+ fds_b[1], G_IO_IN, 0);
+ /* 'b' had no events, so 'a' can go this time */
+ assert_flagged (source_a);
+ assert_not_flagged (source_b);
+ clear_flag (source_a);
+
+ /* remove one of the fds from 'b' */
+ g_source_remove_unix_fd (source_b, tag1);
+ assert_main_context_state (3,
+ fds_a[0], G_IO_IN, 0,
+ fds_a[1], G_IO_OUT, 0,
+ fds_b[1], G_IO_IN, 0);
+ assert_not_flagged (source_a);
+ assert_not_flagged (source_b);
+
+ /* remove the other */
+ g_source_remove_unix_fd (source_b, tag2);
+ assert_main_context_state (2,
+ fds_a[0], G_IO_IN, 0,
+ fds_a[1], G_IO_OUT, 0);
+ assert_not_flagged (source_a);
+ assert_not_flagged (source_b);
+
+ /* destroy the sources */
+ g_source_destroy (source_a);
+ g_source_destroy (source_b);
+ assert_main_context_state (0);
+
+ g_source_unref (source_a);
+ g_source_unref (source_b);
+ close (fds_a[0]);
+ close (fds_a[1]);
+ close (fds_b[0]);
+ close (fds_b[1]);
+}
+
+static gboolean
+unixfd_quit_loop (gint fd,
+ GIOCondition condition,
+ gpointer user_data)
+{
+ GMainLoop *loop = user_data;
+
+ g_main_loop_quit (loop);
+
+ return FALSE;
+}
+
+static void
+test_unix_file_poll (void)
+{
+ gint fd;
+ GSource *source;
+ GMainLoop *loop;
+
+ fd = open ("/dev/null", O_RDONLY);
+ g_assert (fd >= 0);
+
+ loop = g_main_loop_new (NULL, FALSE);
+
+ source = g_unix_fd_source_new (fd, G_IO_IN);
+ g_source_set_callback (source, (GSourceFunc) unixfd_quit_loop, loop, NULL);
+ g_source_attach (source, NULL);
+
+ /* Should not block */
+ g_main_loop_run (loop);
+
+ g_source_destroy (source);
+
+ assert_main_context_state (0);
+
+ g_source_unref (source);
+
+ g_main_loop_unref (loop);
+
+ close (fd);
+}
+
+#endif
+
+static gboolean
+timeout_cb (gpointer data)
+{
+ GMainLoop *loop = data;
+ GMainContext *context;
+
+ context = g_main_loop_get_context (loop);
+ g_assert (g_main_loop_is_running (loop));
+ g_assert (g_main_context_is_owner (context));
+
+ g_main_loop_quit (loop);
+
+ return G_SOURCE_REMOVE;
+}
+
+static gpointer
+threadf (gpointer data)
+{
+ GMainContext *context = data;
+ GMainLoop *loop;
+ GSource *source;
+
+ loop = g_main_loop_new (context, FALSE);
+ source = g_timeout_source_new (250);
+ g_source_set_callback (source, timeout_cb, loop, NULL);
+ g_source_attach (source, context);
+ g_source_unref (source);
+
+ g_main_loop_run (loop);
+
+ g_main_loop_unref (loop);
+
+ return NULL;
+}
+
+static void
+test_mainloop_wait (void)
+{
+ GMainContext *context;
+ GThread *t1, *t2;
+
+ context = g_main_context_new ();
+
+ t1 = g_thread_new ("t1", threadf, context);
+ t2 = g_thread_new ("t2", threadf, context);
+
+ g_thread_join (t1);
+ g_thread_join (t2);
+
+ g_main_context_unref (context);
+}
+
int
main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
+ g_test_bug_base ("http://bugzilla.gnome.org/");
g_test_add_func ("/maincontext/basic", test_maincontext_basic);
g_test_add_func ("/mainloop/basic", test_mainloop_basic);
g_test_add_func ("/mainloop/invoke", test_invoke);
g_test_add_func ("/mainloop/child_sources", test_child_sources);
g_test_add_func ("/mainloop/recursive_child_sources", test_recursive_child_sources);
+ g_test_add_func ("/mainloop/swapping_child_sources", test_swapping_child_sources);
+ g_test_add_func ("/mainloop/blocked_child_sources", test_blocked_child_sources);
+ g_test_add_func ("/mainloop/source_time", test_source_time);
+ g_test_add_func ("/mainloop/overflow", test_mainloop_overflow);
+ g_test_add_func ("/mainloop/ready-time", test_ready_time);
+ g_test_add_func ("/mainloop/wakeup", test_wakeup);
+ g_test_add_func ("/mainloop/remove-invalid", test_remove_invalid);
+ g_test_add_func ("/mainloop/unref-while-pending", test_unref_while_pending);
+#ifdef G_OS_UNIX
+ g_test_add_func ("/mainloop/unix-fd", test_unix_fd);
+ g_test_add_func ("/mainloop/unix-fd-source", test_unix_fd_source);
+ g_test_add_func ("/mainloop/source-unix-fd-api", test_source_unix_fd_api);
+ g_test_add_func ("/mainloop/wait", test_mainloop_wait);
+ g_test_add_func ("/mainloop/unix-file-poll", test_unix_file_poll);
+#endif
return g_test_run ();
}
projects / platform / upstream / glib.git / blobdiff