xref: /xnu-10002.61.3/tests/os_atomic.cpp (revision 0f4c859e951fba394238ab619495c4e1d54d0f34)
1*0f4c859eSApple OSS Distributions #include <darwintest.h>
2*0f4c859eSApple OSS Distributions #include <os/atomic_private.h>
3*0f4c859eSApple OSS Distributions 
4*0f4c859eSApple OSS Distributions T_GLOBAL_META(
5*0f4c859eSApple OSS Distributions 	T_META_RUN_CONCURRENTLY(true),
6*0f4c859eSApple OSS Distributions 	T_META_CHECK_LEAKS(false)
7*0f4c859eSApple OSS Distributions 	);
8*0f4c859eSApple OSS Distributions 
9*0f4c859eSApple OSS Distributions T_DECL(os_atomic, "Just to make sure things build at all in c++ mode")
10*0f4c859eSApple OSS Distributions {
11*0f4c859eSApple OSS Distributions 	static os_atomic(int) i;
12*0f4c859eSApple OSS Distributions 	static volatile int v_i = 0;
13*0f4c859eSApple OSS Distributions 	int old_i = 0;
14*0f4c859eSApple OSS Distributions 	int a, b;
15*0f4c859eSApple OSS Distributions 
16*0f4c859eSApple OSS Distributions 	T_ASSERT_EQ(os_atomic_inc_orig(&i, relaxed), 0, "atomic inc");
17*0f4c859eSApple OSS Distributions 	T_ASSERT_EQ(os_atomic_cmpxchg(&i, 1, 0, relaxed), true, "os_atomic_cmpxchg");
18*0f4c859eSApple OSS Distributions 	os_atomic_rmw_loop(&i, a, b, relaxed, {
19*0f4c859eSApple OSS Distributions 		b = a;
20*0f4c859eSApple OSS Distributions 	});
21*0f4c859eSApple OSS Distributions 
22*0f4c859eSApple OSS Distributions 	T_ASSERT_EQ(os_atomic_inc_orig(&old_i, relaxed), 0, "atomic inc");
23*0f4c859eSApple OSS Distributions 	T_ASSERT_EQ(os_atomic_cmpxchg(&old_i, 1, 0, relaxed), true, "os_atomic_cmpxchg");
24*0f4c859eSApple OSS Distributions 	os_atomic_rmw_loop(&old_i, a, b, relaxed, {
25*0f4c859eSApple OSS Distributions 		b = a;
26*0f4c859eSApple OSS Distributions 	});
27*0f4c859eSApple OSS Distributions 
28*0f4c859eSApple OSS Distributions 	T_ASSERT_EQ(os_atomic_inc_orig(&v_i, relaxed), 0, "atomic inc");
29*0f4c859eSApple OSS Distributions 	T_ASSERT_EQ(os_atomic_cmpxchg(&v_i, 1, 0, relaxed), true, "os_atomic_cmpxchg");
30*0f4c859eSApple OSS Distributions 	os_atomic_rmw_loop(&v_i, a, b, relaxed, {
31*0f4c859eSApple OSS Distributions 		b = a;
32*0f4c859eSApple OSS Distributions 	});
33*0f4c859eSApple OSS Distributions }
34