gobject/tests/signal-handler.c

   1 #include <glib-object.h>
   2
   3 typedef struct {
   4   GObject instance;
   5 } MyObj;
   6
   7 typedef struct {
   8   GObjectClass parent_class;
   9 } MyObjClass;
  10
  11 enum {
  12   SIGNAL1,
  13   SIGNAL2,
  14   LAST_SIGNAL
  15 };
  16
  17 guint signals[LAST_SIGNAL];
  18
  19 GType my_obj_get_type (void);
  20
  21 G_DEFINE_TYPE (MyObj, my_obj, G_TYPE_OBJECT)
  22
  23 static void
  24 my_obj_init (MyObj *o)
  25 {
  26 }
  27
  28 static void
  29 my_obj_class_init (MyObjClass *class)
  30 {
  31   signals[SIGNAL1] =
  32     g_signal_new ("signal1",
  33                   G_TYPE_FROM_CLASS (class),
  34                   G_SIGNAL_RUN_LAST,
  35                   0, NULL, NULL, NULL, G_TYPE_NONE, 0);
  36   signals[SIGNAL2] =
  37     g_signal_new ("signal2",
  38                   G_TYPE_FROM_CLASS (class),
  39                   G_SIGNAL_RUN_LAST,
  40                   0, NULL, NULL, NULL, G_TYPE_NONE, 0);
  41 }
  42
  43 static void
  44 nop (void)
  45 {
  46 }
  47
  48 #define HANDLERS 500000
  49
  50 static void
  51 test_connect_many (void)
  52 {
  53   MyObj *o;
  54   gdouble time_elapsed;
  55   gint i;
  56
  57   o = g_object_new (my_obj_get_type (), NULL);
  58
  59   g_test_timer_start ();
  60
  61   for (i = 0; i < HANDLERS; i++)
  62     g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
  63
  64   time_elapsed = g_test_timer_elapsed ();
  65
  66   g_object_unref (o);
  67
  68   g_test_minimized_result (time_elapsed, "connected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
  69 }
  70
  71 static void
  72 test_disconnect_many_ordered (void)
  73 {
  74   MyObj *o;
  75   gulong handlers[HANDLERS];
  76   gdouble time_elapsed;
  77   gint i;
  78
  79   o = g_object_new (my_obj_get_type (), NULL);
  80
  81   for (i = 0; i < HANDLERS; i++)
  82     handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
  83
  84   g_test_timer_start ();
  85
  86   for (i = 0; i < HANDLERS; i++)
  87     g_signal_handler_disconnect (o, handlers[i]);
  88
  89   time_elapsed = g_test_timer_elapsed ();
  90
  91   g_object_unref (o);
  92
  93   g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
  94 }
  95
  96 static void
  97 test_disconnect_many_inverse (void)
  98 {
  99   MyObj *o;
 100   gulong handlers[HANDLERS];
 101   gdouble time_elapsed;
 102   gint i;
 103
 104   o = g_object_new (my_obj_get_type (), NULL);
 105
 106   for (i = 0; i < HANDLERS; i++)
 107     handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
 108
 109   g_test_timer_start ();
 110
 111   for (i = HANDLERS - 1; i >= 0; i--)
 112     g_signal_handler_disconnect (o, handlers[i]);
 113
 114   time_elapsed = g_test_timer_elapsed ();
 115
 116   g_object_unref (o);
 117
 118   g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
 119 }
 120
 121 static void
 122 test_disconnect_many_random (void)
 123 {
 124   MyObj *o;
 125   gulong handlers[HANDLERS];
 126   gulong id;
 127   gdouble time_elapsed;
 128   gint i, j;
 129
 130   o = g_object_new (my_obj_get_type (), NULL);
 131
 132   for (i = 0; i < HANDLERS; i++)
 133     handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
 134
 135   for (i = 0; i < HANDLERS; i++)
 136     {
 137       j = g_test_rand_int_range (0, HANDLERS);
 138       id = handlers[i];
 139       handlers[i] = handlers[j];
 140       handlers[j] = id;
 141     }
 142
 143   g_test_timer_start ();
 144
 145   for (i = 0; i < HANDLERS; i++)
 146     g_signal_handler_disconnect (o, handlers[i]);
 147
 148   time_elapsed = g_test_timer_elapsed ();
 149
 150   g_object_unref (o);
 151
 152   g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
 153 }
 154
 155 static void
 156 test_disconnect_2_signals (void)
 157 {
 158   MyObj *o;
 159   gulong handlers[HANDLERS];
 160   gulong id;
 161   gdouble time_elapsed;
 162   gint i, j;
 163
 164   o = g_object_new (my_obj_get_type (), NULL);
 165
 166   for (i = 0; i < HANDLERS; i++)
 167     {
 168       if (i % 2 == 0)
 169         handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
 170       else
 171         handlers[i] = g_signal_connect (o, "signal2", G_CALLBACK (nop), NULL);
 172     }
 173
 174   for (i = 0; i < HANDLERS; i++)
 175     {
 176       j = g_test_rand_int_range (0, HANDLERS);
 177       id = handlers[i];
 178       handlers[i] = handlers[j];
 179       handlers[j] = id;
 180     }
 181
 182   g_test_timer_start ();
 183
 184   for (i = 0; i < HANDLERS; i++)
 185     g_signal_handler_disconnect (o, handlers[i]);
 186
 187   time_elapsed = g_test_timer_elapsed ();
 188
 189   g_object_unref (o);
 190
 191   g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
 192 }
 193
 194 static void
 195 test_disconnect_2_objects (void)
 196 {
 197   MyObj *o1, *o2, *o;
 198   gulong handlers[HANDLERS];
 199   MyObj *objects[HANDLERS];
 200   gulong id;
 201   gdouble time_elapsed;
 202   gint i, j;
 203
 204   o1 = g_object_new (my_obj_get_type (), NULL);
 205   o2 = g_object_new (my_obj_get_type (), NULL);
 206
 207   for (i = 0; i < HANDLERS; i++)
 208     {
 209       if (i % 2 == 0)
 210         {
 211           handlers[i] = g_signal_connect (o1, "signal1", G_CALLBACK (nop), NULL);
 212           objects[i] = o1;
 213         }
 214       else
 215         {
 216           handlers[i] = g_signal_connect (o2, "signal1", G_CALLBACK (nop), NULL);
 217           objects[i] = o2;
 218         }
 219     }
 220
 221   for (i = 0; i < HANDLERS; i++)
 222     {
 223       j = g_test_rand_int_range (0, HANDLERS);
 224       id = handlers[i];
 225       handlers[i] = handlers[j];
 226       handlers[j] = id;
 227       o = objects[i];
 228       objects[i] = objects[j];
 229       objects[j] = o;
 230     }
 231
 232   g_test_timer_start ();
 233
 234   for (i = 0; i < HANDLERS; i++)
 235     g_signal_handler_disconnect (objects[i], handlers[i]);
 236
 237   time_elapsed = g_test_timer_elapsed ();
 238
 239   g_object_unref (o1);
 240   g_object_unref (o2);
 241
 242   g_test_minimized_result (time_elapsed, "disconnected %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
 243 }
 244
 245 static void
 246 test_block_many (void)
 247 {
 248   MyObj *o;
 249   gulong handlers[HANDLERS];
 250   gulong id;
 251   gdouble time_elapsed;
 252   gint i, j;
 253
 254   o = g_object_new (my_obj_get_type (), NULL);
 255
 256   for (i = 0; i < HANDLERS; i++)
 257     handlers[i] = g_signal_connect (o, "signal1", G_CALLBACK (nop), NULL);
 258
 259   for (i = 0; i < HANDLERS; i++)
 260     {
 261       j = g_test_rand_int_range (0, HANDLERS);
 262       id = handlers[i];
 263       handlers[i] = handlers[j];
 264       handlers[j] = id;
 265     }
 266
 267   g_test_timer_start ();
 268
 269   for (i = 0; i < HANDLERS; i++)
 270     g_signal_handler_block (o, handlers[i]);
 271
 272   for (i = HANDLERS - 1; i >= 0; i--)
 273     g_signal_handler_unblock (o, handlers[i]);
 274
 275   time_elapsed = g_test_timer_elapsed ();
 276
 277   g_object_unref (o);
 278
 279   g_test_minimized_result (time_elapsed, "blocked and unblocked %u handlers in %6.3f seconds", HANDLERS, time_elapsed);
 280 }
 281
 282 int
 283 main (int argc, char *argv[])
 284 {
 285   g_test_init (&argc, &argv, NULL);
 286
 287   if (g_test_perf ())
 288     {
 289       g_test_add_func ("/signal/handler/connect-many", test_connect_many);
 290       g_test_add_func ("/signal/handler/disconnect-many-ordered", test_disconnect_many_ordered);
 291       g_test_add_func ("/signal/handler/disconnect-many-inverse", test_disconnect_many_inverse);
 292       g_test_add_func ("/signal/handler/disconnect-many-random", test_disconnect_many_random);
 293       g_test_add_func ("/signal/handler/disconnect-2-signals", test_disconnect_2_signals);
 294       g_test_add_func ("/signal/handler/disconnect-2-objects", test_disconnect_2_objects);
 295       g_test_add_func ("/signal/handler/block-many", test_block_many);
 296     }
 297
 298   return g_test_run ();
 299 }