xnu-7195.50.7.100.1.tar.gz

[apple/xnu.git] / tests / os_atomic.cpp

diff --git a/tests/os_atomic.cpp b/tests/os_atomic.cpp
new file mode 100644 (file)
index 0000000..976c065
--- /dev/null
+++ b/tests/os_atomic.cpp
@@ -0,0 +1,33 @@
+#include <darwintest.h>
+#include <os/atomic_private.h>
+
+T_GLOBAL_META(
+       T_META_RUN_CONCURRENTLY(true),
+       T_META_CHECK_LEAKS(false)
+       );
+
+T_DECL(os_atomic, "Just to make sure things build at all in c++ mode")
+{
+       os_atomic(int) i = 0;
+       int old_i = 0;
+       volatile int v_i = 0;
+       int a, b;
+
+       T_ASSERT_EQ(os_atomic_inc_orig(&i, relaxed), 0, "atomic inc");
+       T_ASSERT_EQ(os_atomic_cmpxchg(&i, 1, 0, relaxed), true, "os_atomic_cmpxchg");
+       os_atomic_rmw_loop(&i, a, b, relaxed, {
+               b = a;
+       });
+
+       T_ASSERT_EQ(os_atomic_inc_orig(&old_i, relaxed), 0, "atomic inc");
+       T_ASSERT_EQ(os_atomic_cmpxchg(&old_i, 1, 0, relaxed), true, "os_atomic_cmpxchg");
+       os_atomic_rmw_loop(&old_i, a, b, relaxed, {
+               b = a;
+       });
+
+       T_ASSERT_EQ(os_atomic_inc_orig(&v_i, relaxed), 0, "atomic inc");
+       T_ASSERT_EQ(os_atomic_cmpxchg(&v_i, 1, 0, relaxed), true, "os_atomic_cmpxchg");
+       os_atomic_rmw_loop(&v_i, a, b, relaxed, {
+               b = a;
+       });
+}