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-rw-r--r--src/util/u_atomic_test.c137
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diff --git a/src/util/u_atomic_test.c b/src/util/u_atomic_test.c
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+/**************************************************************************
+ *
+ * Copyright 2014 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/* Force assertions, even on debug builds. */
+#undef NDEBUG
+
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include "u_atomic.h"
+
+
+#define test_atomic_cmpxchg(type, ones) \
+ static void test_atomic_cmpxchg_##type (void) { \
+ type v, r; \
+ \
+ p_atomic_set(&v, ones); \
+ assert(v == ones && "p_atomic_set"); \
+ \
+ r = p_atomic_read(&v); \
+ assert(r == ones && "p_atomic_read"); \
+ \
+ v = ones; \
+ r = p_atomic_cmpxchg(&v, 0, 1); \
+ assert(v == ones && "p_atomic_cmpxchg"); \
+ assert(r == ones && "p_atomic_cmpxchg"); \
+ r = p_atomic_cmpxchg(&v, ones, 0); \
+ assert(v == 0 && "p_atomic_cmpxchg"); \
+ assert(r == ones && "p_atomic_cmpxchg"); \
+ \
+ (void) r; \
+ }
+
+
+#define test_atomic(type, ones) \
+ test_atomic_cmpxchg(type, ones) \
+ \
+ static void test_atomic_##type (void) { \
+ type v, r; \
+ bool b; \
+ \
+ test_atomic_cmpxchg_##type(); \
+ \
+ v = 2; \
+ b = p_atomic_dec_zero(&v); \
+ assert(v == 1 && "p_atomic_dec_zero"); \
+ assert(b == false && "p_atomic_dec_zero"); \
+ b = p_atomic_dec_zero(&v); \
+ assert(v == 0 && "p_atomic_dec_zero"); \
+ assert(b == true && "p_atomic_dec_zero"); \
+ b = p_atomic_dec_zero(&v); \
+ assert(v == ones && "p_atomic_dec_zero"); \
+ assert(b == false && "p_atomic_dec_zero"); \
+ \
+ v = ones; \
+ p_atomic_inc(&v); \
+ assert(v == 0 && "p_atomic_inc"); \
+ \
+ v = ones; \
+ r = p_atomic_inc_return(&v); \
+ assert(v == 0 && "p_atomic_inc_return"); \
+ assert(r == v && "p_atomic_inc_return"); \
+ \
+ v = 0; \
+ p_atomic_dec(&v); \
+ assert(v == ones && "p_atomic_dec"); \
+ \
+ v = 0; \
+ r = p_atomic_dec_return(&v); \
+ assert(v == ones && "p_atomic_dec_return"); \
+ assert(r == v && "p_atomic_dec_return"); \
+ \
+ (void) r; \
+ (void) b; \
+ }
+
+
+test_atomic(int, -1)
+test_atomic(unsigned, ~0U)
+
+test_atomic(int16_t, INT16_C(-1))
+test_atomic(uint16_t, UINT16_C(0xffff))
+test_atomic(int32_t, INT32_C(-1))
+test_atomic(uint32_t, UINT32_C(0xffffffff))
+test_atomic(int64_t, INT64_C(-1))
+test_atomic(uint64_t, UINT64_C(0xffffffffffffffff))
+
+test_atomic_cmpxchg(int8_t, INT8_C(-1))
+test_atomic_cmpxchg(uint8_t, UINT8_C(0xff))
+test_atomic_cmpxchg(bool, true)
+
+int
+main()
+{
+ test_atomic_int();
+ test_atomic_unsigned();
+
+ test_atomic_int16_t();
+ test_atomic_uint16_t();
+ test_atomic_int32_t();
+ test_atomic_uint32_t();
+ test_atomic_int64_t();
+ test_atomic_uint64_t();
+
+ test_atomic_cmpxchg_int8_t();
+ test_atomic_cmpxchg_uint8_t();
+ test_atomic_cmpxchg_bool();
+
+ return 0;
+}