glib/tests/bitlock.c

   1 #include <glib.h>
   2
   3 #define ITERATIONS 100000000
   4
   5 static void
   6 test_bitlocks (void)
   7 {
   8   guint64 start = g_get_monotonic_time ();
   9   gint lock = 0;
  10   gint i;
  11
  12   for (i = 0; i < ITERATIONS; i++)
  13     {
  14       g_bit_lock (&lock, 0);
  15       g_bit_unlock (&lock, 0);
  16     }
  17
  18   {
  19     gdouble elapsed;
  20     gdouble rate;
  21
  22     elapsed = g_get_monotonic_time () - start;
  23     elapsed /= 1000000;
  24     rate = ITERATIONS / elapsed;
  25
  26     g_test_maximized_result (rate, "iterations per second");
  27   }
  28 }
  29
  30 int
  31 main (int argc, char **argv)
  32 {
  33   g_test_init (&argc, &argv, NULL);
  34
  35   if (g_test_perf ())
  36     g_test_add_func ("/bitlock/performance/uncontended", test_bitlocks);
  37
  38   return g_test_run ();
  39 }