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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"
#ifdef _MSC_VER
#pragma warning( disable : 28112 ) /* Accessing a local variable via an Interlocked function */
#pragma warning( disable : 28113 ) /* A variable which is accessed via an Interlocked function must always be accessed via an Interlocked function */
#endif
/* Test only assignment-like operations, which are supported on all types */
#define test_atomic_assign(type, ones) \
static void test_atomic_assign_##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; \
}
/* Test arithmetic operations that are supported on 8 bits integer types */
#define test_atomic_8bits(type, ones) \
test_atomic_assign(type, ones) \
\
static void test_atomic_8bits_##type (void) { \
type v, r; \
\
test_atomic_assign_##type(); \
\
v = 23; \
p_atomic_add(&v, 42); \
r = p_atomic_read(&v); \
assert(r == 65 && "p_atomic_add"); \
\
(void) r; \
}
/* Test all operations */
#define test_atomic(type, ones) \
test_atomic_8bits(type, ones) \
\
static void test_atomic_##type (void) { \
type v, r; \
bool b; \
\
test_atomic_8bits_##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_8bits(int8_t, INT8_C(-1))
test_atomic_8bits(uint8_t, UINT8_C(0xff))
test_atomic_assign(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_8bits_int8_t();
test_atomic_8bits_uint8_t();
test_atomic_assign_bool();
return 0;
}
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