Add atomic operations tests and fix latent bugs.

2014-08-06 23:36:19 -07:00
parent 7f944aa621
commit a2ea54c986
3 changed files with 128 additions and 13 deletions
--- a/test/unit/atomic.c
+++ b/test/unit/atomic.c
@@ -0,0 +1,97 @@
+#include "test/jemalloc_test.h"
+
+#define	TEST_STRUCT(p, t)						\
+struct p##_test_s {							\
+	t	accum0;							\
+	t	x;							\
+};									\
+typedef struct p##_test_s p##_test_t;
+
+#define	TEST_BODY(p, t, PRI) do {					\
+	const p##_test_t tests[] = {					\
+		{-1, -1},						\
+		{-1,  0},						\
+		{-1,  1},						\
+									\
+		{ 0, -1},						\
+		{ 0,  0},						\
+		{ 0,  1},						\
+									\
+		{ 1, -1},						\
+		{ 1,  0},						\
+		{ 1,  1},						\
+									\
+		{0, -(1 << 22)},					\
+		{0, (1 << 22)},						\
+		{(1 << 22), -(1 << 22)},				\
+		{(1 << 22), (1 << 22)}					\
+	};								\
+	unsigned i;							\
+									\
+	for (i = 0; i < sizeof(tests)/sizeof(p##_test_t); i++) {	\
+		t accum = tests[i].accum0;				\
+		assert_u64_eq(atomic_read_##p(&accum), tests[i].accum0,	\
+		    "i=%u", i);						\
+		assert_u64_eq(atomic_add_##p(&accum, tests[i].x),	\
+		    tests[i].accum0 + tests[i].x,			\
+		    "i=%u, accum=%#"PRI", x=%#"PRI,			\
+		    i, tests[i].accum0, tests[i].x);			\
+		assert_u64_eq(atomic_read_##p(&accum), accum,		\
+		    "i=%u", i);						\
+									\
+		accum = tests[i].accum0;				\
+		assert_u64_eq(atomic_sub_##p(&accum, tests[i].x),	\
+		    tests[i].accum0 - tests[i].x,			\
+		    "i=%u, accum=%#"PRI", x=%#"PRI,			\
+		    i, tests[i].accum0, tests[i].x);			\
+		assert_u64_eq(atomic_read_##p(&accum), accum,		\
+		    "i=%u", i);						\
+	}								\
+} while (0)
+
+TEST_STRUCT(uint64, uint64_t)
+TEST_BEGIN(test_atomic_uint64)
+{
+
+#if !(LG_SIZEOF_PTR == 3 || LG_SIZEOF_INT == 3)
+	test_skip("64-bit atomic operations not supported");
+#else
+	TEST_BODY(uint64, uint64_t, PRIx64);
+#endif
+}
+TEST_END
+
+TEST_STRUCT(uint32, uint32_t)
+TEST_BEGIN(test_atomic_uint32)
+{
+
+	TEST_BODY(uint32, uint32_t, PRIx32);
+}
+TEST_END
+
+TEST_STRUCT(z, size_t)
+TEST_BEGIN(test_atomic_z)
+{
+
+	TEST_BODY(z, size_t, "zx");
+}
+TEST_END
+
+TEST_STRUCT(u, unsigned)
+TEST_BEGIN(test_atomic_u)
+{
+
+	TEST_BODY(u, unsigned, "x");
+}
+TEST_END
+
+int
+main(void)
+{
+
+	return (test(
+	    test_atomic_uint64,
+	    test_atomic_uint32,
+	    test_atomic_z,
+	    test_atomic_u));
+}