--- /dev/null
+#include <glib-object.h>
+
+typedef struct {
+ GObject instance;
+} MyObj;
+
+typedef struct {
+ GObjectClass parent_class;
+} MyObjClass;
+
+enum {
+ SIGNAL1,
+ SIGNAL2,
+ LAST_SIGNAL
+};
+
+guint signals[LAST_SIGNAL];
+
+GType my_obj_get_type (void);
+
+G_DEFINE_TYPE (MyObj, my_obj, G_TYPE_OBJECT)
+
+static void
+my_obj_init (MyObj *o)
+{
+}
+
+static void
+my_obj_class_init (MyObjClass *class)
+{
+ signals[SIGNAL1] =
+ g_signal_new ("signal1",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ 0, NULL, NULL, NULL, G_TYPE_NONE, 0);
+ signals[SIGNAL2] =
+ g_signal_new ("signal2",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ 0, NULL, NULL, NULL, G_TYPE_NONE, 0);
+}
+
+static void
+nop (void)
+{
+}
+
+#define HANDLERS 500000
+
+static void
+test_connect_many (void)
+{
+ MyObj *o;
+ gdouble time_elapsed;
+ gint i;
+
+ o = g_object_new (my_obj_get_type (), NULL);
+
+ g_test_timer_start ();
+
+ for (i = 0; i < HANDLERS; i++)
+ g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o);
+
+ g_test_minimized_result (time_elapsed, "connected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+static void
+test_disconnect_many_ordered (void)
+{
+ MyObj *o;
+ gulong handlers[HANDLERS];
+ gdouble time_elapsed;
+ gint i;
+
+ o = g_object_new (my_obj_get_type (), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
+
+ g_test_timer_start ();
+
+ for (i = 0; i < HANDLERS; i++)
+ g_signal_handler_disconnect (o, handlers[i]);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o);
+
+ g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+static void
+test_disconnect_many_inverse (void)
+{
+ MyObj *o;
+ gulong handlers[HANDLERS];
+ gdouble time_elapsed;
+ gint i;
+
+ o = g_object_new (my_obj_get_type (), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
+
+ g_test_timer_start ();
+
+ for (i = HANDLERS - 1; i >= 0; i--)
+ g_signal_handler_disconnect (o, handlers[i]);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o);
+
+ g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+static void
+test_disconnect_many_random (void)
+{
+ MyObj *o;
+ gulong handlers[HANDLERS];
+ gulong id;
+ gdouble time_elapsed;
+ gint i, j;
+
+ o = g_object_new (my_obj_get_type (), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ {
+ j = g_test_rand_int_range (0, HANDLERS);
+ id = handlers[i];
+ handlers[i] = handlers[j];
+ handlers[j] = id;
+ }
+
+ g_test_timer_start ();
+
+ for (i = 0; i < HANDLERS; i++)
+ g_signal_handler_disconnect (o, handlers[i]);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o);
+
+ g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+static void
+test_disconnect_2_signals (void)
+{
+ MyObj *o;
+ gulong handlers[HANDLERS];
+ gulong id;
+ gdouble time_elapsed;
+ gint i, j;
+
+ o = g_object_new (my_obj_get_type (), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ {
+ if (i % 2 == 0)
+ handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
+ else
+ handlers[i] = g_signal_connect (o, "signal2", G_CALLBACK (nop), NULL);
+ }
+
+ for (i = 0; i < HANDLERS; i++)
+ {
+ j = g_test_rand_int_range (0, HANDLERS);
+ id = handlers[i];
+ handlers[i] = handlers[j];
+ handlers[j] = id;
+ }
+
+ g_test_timer_start ();
+
+ for (i = 0; i < HANDLERS; i++)
+ g_signal_handler_disconnect (o, handlers[i]);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o);
+
+ g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+static void
+test_disconnect_2_objects (void)
+{
+ MyObj *o1, *o2, *o;
+ gulong handlers[HANDLERS];
+ MyObj *objects[HANDLERS];
+ gulong id;
+ gdouble time_elapsed;
+ gint i, j;
+
+ o1 = g_object_new (my_obj_get_type (), NULL);
+ o2 = g_object_new (my_obj_get_type (), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ {
+ if (i % 2 == 0)
+ {
+ handlers[i] = g_signal_connect (o1, "signal1", G_CALLBACK (nop), NULL);
+ objects[i] = o1;
+ }
+ else
+ {
+ handlers[i] = g_signal_connect (o2, "signal1", G_CALLBACK (nop), NULL);
+ objects[i] = o2;
+ }
+ }
+
+ for (i = 0; i < HANDLERS; i++)
+ {
+ j = g_test_rand_int_range (0, HANDLERS);
+ id = handlers[i];
+ handlers[i] = handlers[j];
+ handlers[j] = id;
+ o = objects[i];
+ objects[i] = objects[j];
+ objects[j] = o;
+ }
+
+ g_test_timer_start ();
+
+ for (i = 0; i < HANDLERS; i++)
+ g_signal_handler_disconnect (objects[i], handlers[i]);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o1);
+ g_object_unref (o2);
+
+ g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+static void
+test_block_many (void)
+{
+ MyObj *o;
+ gulong handlers[HANDLERS];
+ gulong id;
+ gdouble time_elapsed;
+ gint i, j;
+
+ o = g_object_new (my_obj_get_type (), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
+
+ for (i = 0; i < HANDLERS; i++)
+ {
+ j = g_test_rand_int_range (0, HANDLERS);
+ id = handlers[i];
+ handlers[i] = handlers[j];
+ handlers[j] = id;
+ }
+
+ g_test_timer_start ();
+
+ for (i = 0; i < HANDLERS; i++)
+ g_signal_handler_block (o, handlers[i]);
+
+ for (i = HANDLERS - 1; i >= 0; i--)
+ g_signal_handler_unblock (o, handlers[i]);
+
+ time_elapsed = g_test_timer_elapsed ();
+
+ g_object_unref (o);
+
+ g_test_minimized_result (time_elapsed, "blocked and unblocked %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
+}
+
+int
+main (int argc, char *argv[])
+{
+ g_test_init (&argc, &argv, NULL);
+
+ if (g_test_perf ())
+ {
+ g_test_add_func ("/signal/handler/connect-many", test_connect_many);
+ g_test_add_func ("/signal/handler/disconnect-many-ordered", test_disconnect_many_ordered);
+ g_test_add_func ("/signal/handler/disconnect-many-inverse", test_disconnect_many_inverse);
+ g_test_add_func ("/signal/handler/disconnect-many-random", test_disconnect_many_random);
+ g_test_add_func ("/signal/handler/disconnect-2-signals", test_disconnect_2_signals);
+ g_test_add_func ("/signal/handler/disconnect-2-objects", test_disconnect_2_objects);
+ g_test_add_func ("/signal/handler/block-many", test_block_many);
+ }
+
+ return g_test_run ();
+}