1 /************************************************************************** 2 * 3 * Copyright 2014 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 29 /* Force assertions, even on release builds. */ 30 #undef NDEBUG 31 32 33 #include <stdint.h> 34 #include <inttypes.h> 35 #include <assert.h> 36 37 #include "u_atomic.h" 38 39 #ifdef _MSC_VER 40 #pragma warning( disable : 28112 ) /* Accessing a local variable via an Interlocked function */ 41 #pragma warning( disable : 28113 ) /* A variable which is accessed via an Interlocked function must always be accessed via an Interlocked function */ 42 #endif 43 44 45 /* Test only assignment-like operations, which are supported on all types */ 46 #define test_atomic_assign(type, ones) \ 47 static void test_atomic_assign_##type (void) { \ 48 type v, r; \ 49 \ 50 p_atomic_set(&v, ones); \ 51 assert(v == ones && "p_atomic_set"); \ 52 \ 53 r = p_atomic_read(&v); \ 54 assert(r == ones && "p_atomic_read"); \ 55 \ 56 v = ones; \ 57 r = p_atomic_cmpxchg(&v, 0, 1); \ 58 assert(v == ones && "p_atomic_cmpxchg"); \ 59 assert(r == ones && "p_atomic_cmpxchg"); \ 60 r = p_atomic_cmpxchg(&v, ones, 0); \ 61 assert(v == 0 && "p_atomic_cmpxchg"); \ 62 assert(r == ones && "p_atomic_cmpxchg"); \ 63 \ 64 (void) r; \ 65 } 66 67 68 /* Test arithmetic operations that are supported on 8 bits integer types */ 69 #define test_atomic_8bits(type, ones) \ 70 test_atomic_assign(type, ones) \ 71 \ 72 static void test_atomic_8bits_##type (void) { \ 73 type v, r; \ 74 \ 75 test_atomic_assign_##type(); \ 76 \ 77 v = 23; \ 78 p_atomic_add(&v, 42); \ 79 r = p_atomic_read(&v); \ 80 assert(r == 65 && "p_atomic_add"); \ 81 \ 82 (void) r; \ 83 } 84 85 86 /* Test all operations */ 87 #define test_atomic(type, ones) \ 88 test_atomic_8bits(type, ones) \ 89 \ 90 static void test_atomic_##type (void) { \ 91 type v, r; \ 92 bool b; \ 93 \ 94 test_atomic_8bits_##type(); \ 95 \ 96 v = 2; \ 97 b = p_atomic_dec_zero(&v); \ 98 assert(v == 1 && "p_atomic_dec_zero"); \ 99 assert(b == false && "p_atomic_dec_zero"); \ 100 b = p_atomic_dec_zero(&v); \ 101 assert(v == 0 && "p_atomic_dec_zero"); \ 102 assert(b == true && "p_atomic_dec_zero"); \ 103 b = p_atomic_dec_zero(&v); \ 104 assert(v == ones && "p_atomic_dec_zero"); \ 105 assert(b == false && "p_atomic_dec_zero"); \ 106 \ 107 v = ones; \ 108 p_atomic_inc(&v); \ 109 assert(v == 0 && "p_atomic_inc"); \ 110 \ 111 v = ones; \ 112 r = p_atomic_inc_return(&v); \ 113 assert(v == 0 && "p_atomic_inc_return"); \ 114 assert(r == v && "p_atomic_inc_return"); \ 115 \ 116 v = 0; \ 117 p_atomic_dec(&v); \ 118 assert(v == ones && "p_atomic_dec"); \ 119 \ 120 v = 0; \ 121 r = p_atomic_dec_return(&v); \ 122 assert(v == ones && "p_atomic_dec_return"); \ 123 assert(r == v && "p_atomic_dec_return"); \ 124 \ 125 (void) r; \ 126 (void) b; \ 127 } 128 129 130 test_atomic(int, -1) 131 test_atomic(unsigned, ~0U) 132 133 test_atomic(int16_t, INT16_C(-1)) 134 test_atomic(uint16_t, UINT16_C(0xffff)) 135 test_atomic(int32_t, INT32_C(-1)) 136 test_atomic(uint32_t, UINT32_C(0xffffffff)) 137 test_atomic(int64_t, INT64_C(-1)) 138 test_atomic(uint64_t, UINT64_C(0xffffffffffffffff)) 139 140 test_atomic_8bits(int8_t, INT8_C(-1)) 141 test_atomic_8bits(uint8_t, UINT8_C(0xff)) 142 test_atomic_assign(bool, true) 143 144 int 145 main() 146 { 147 test_atomic_int(); 148 test_atomic_unsigned(); 149 150 test_atomic_int16_t(); 151 test_atomic_uint16_t(); 152 test_atomic_int32_t(); 153 test_atomic_uint32_t(); 154 test_atomic_int64_t(); 155 test_atomic_uint64_t(); 156 157 test_atomic_8bits_int8_t(); 158 test_atomic_8bits_uint8_t(); 159 test_atomic_assign_bool(); 160 161 return 0; 162 } 163
