163 lines
4.7 KiB
C
163 lines
4.7 KiB
C
/**************************************************************************
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*
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* Copyright 2014 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/* Force assertions, even on release builds. */
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#undef NDEBUG
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#include <stdint.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "u_atomic.h"
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#ifdef _MSC_VER
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#pragma warning( disable : 28112 ) /* Accessing a local variable via an Interlocked function */
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#pragma warning( disable : 28113 ) /* A variable which is accessed via an Interlocked function must always be accessed via an Interlocked function */
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#endif
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/* Test only assignment-like operations, which are supported on all types */
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#define test_atomic_assign(type, ones) \
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static void test_atomic_assign_##type (void) { \
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type v, r; \
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\
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p_atomic_set(&v, ones); \
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assert(v == ones && "p_atomic_set"); \
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\
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r = p_atomic_read(&v); \
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assert(r == ones && "p_atomic_read"); \
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\
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v = ones; \
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r = p_atomic_cmpxchg(&v, 0, 1); \
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assert(v == ones && "p_atomic_cmpxchg"); \
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assert(r == ones && "p_atomic_cmpxchg"); \
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r = p_atomic_cmpxchg(&v, ones, 0); \
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assert(v == 0 && "p_atomic_cmpxchg"); \
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assert(r == ones && "p_atomic_cmpxchg"); \
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\
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(void) r; \
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}
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/* Test arithmetic operations that are supported on 8 bits integer types */
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#define test_atomic_8bits(type, ones) \
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test_atomic_assign(type, ones) \
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\
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static void test_atomic_8bits_##type (void) { \
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type v, r; \
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\
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test_atomic_assign_##type(); \
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\
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v = 23; \
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p_atomic_add(&v, 42); \
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r = p_atomic_read(&v); \
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assert(r == 65 && "p_atomic_add"); \
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\
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(void) r; \
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}
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/* Test all operations */
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#define test_atomic(type, ones) \
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test_atomic_8bits(type, ones) \
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\
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static void test_atomic_##type (void) { \
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type v, r; \
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bool b; \
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\
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test_atomic_8bits_##type(); \
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\
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v = 2; \
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b = p_atomic_dec_zero(&v); \
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assert(v == 1 && "p_atomic_dec_zero"); \
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assert(b == false && "p_atomic_dec_zero"); \
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b = p_atomic_dec_zero(&v); \
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assert(v == 0 && "p_atomic_dec_zero"); \
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assert(b == true && "p_atomic_dec_zero"); \
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b = p_atomic_dec_zero(&v); \
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assert(v == ones && "p_atomic_dec_zero"); \
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assert(b == false && "p_atomic_dec_zero"); \
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\
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v = ones; \
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p_atomic_inc(&v); \
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assert(v == 0 && "p_atomic_inc"); \
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\
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v = ones; \
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r = p_atomic_inc_return(&v); \
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assert(v == 0 && "p_atomic_inc_return"); \
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assert(r == v && "p_atomic_inc_return"); \
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\
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v = 0; \
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p_atomic_dec(&v); \
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assert(v == ones && "p_atomic_dec"); \
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\
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v = 0; \
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r = p_atomic_dec_return(&v); \
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assert(v == ones && "p_atomic_dec_return"); \
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assert(r == v && "p_atomic_dec_return"); \
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\
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(void) r; \
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(void) b; \
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}
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test_atomic(int, -1)
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test_atomic(unsigned, ~0U)
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test_atomic(int16_t, INT16_C(-1))
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test_atomic(uint16_t, UINT16_C(0xffff))
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test_atomic(int32_t, INT32_C(-1))
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test_atomic(uint32_t, UINT32_C(0xffffffff))
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test_atomic(int64_t, INT64_C(-1))
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test_atomic(uint64_t, UINT64_C(0xffffffffffffffff))
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test_atomic_8bits(int8_t, INT8_C(-1))
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test_atomic_8bits(uint8_t, UINT8_C(0xff))
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test_atomic_assign(bool, true)
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int
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main()
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{
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test_atomic_int();
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test_atomic_unsigned();
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test_atomic_int16_t();
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test_atomic_uint16_t();
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test_atomic_int32_t();
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test_atomic_uint32_t();
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test_atomic_int64_t();
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test_atomic_uint64_t();
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test_atomic_8bits_int8_t();
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test_atomic_8bits_uint8_t();
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test_atomic_assign_bool();
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return 0;
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}
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