Import Upstream version 2.72.4

glib/tests/bitlock.c

@@ -0,0 +1,39 @@
+#include <glib.h>
+
+#define ITERATIONS 100000000
+
+static void
+test_bitlocks (void)
+{
+  guint64 start = g_get_monotonic_time ();
+  gint lock = 0;
+  gint i;
+
+  for (i = 0; i < ITERATIONS; i++)
+    {
+      g_bit_lock (&lock, 0);
+      g_bit_unlock (&lock, 0);
+    }
+
+  {
+    gdouble elapsed;
+    gdouble rate;
+
+    elapsed = g_get_monotonic_time () - start;
+    elapsed /= 1000000;
+    rate = ITERATIONS / elapsed;
+
+    g_test_maximized_result (rate, "iterations per second");
+  }
+}
+
+int
+main (int argc, char **argv)
+{
+  g_test_init (&argc, &argv, NULL);
+
+  if (g_test_perf ())
+    g_test_add_func ("/bitlock/performance/uncontended", test_bitlocks);
+
+  return g_test_run ();
+}