| 1 | /* |
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| 2 | * Distributed under the Boost Software License, Version 1.0. |
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| 3 | * (See accompanying file LICENSE_1_0.txt or copy at |
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| 4 | * http://www.boost.org/LICENSE_1_0.txt) |
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| 5 | * |
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| 6 | * Copyright (c) 2014 Andrey Semashev |
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| 7 | */ |
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| 8 | /*! |
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| 9 | * \file atomic/capabilities.hpp |
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| 10 | * |
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| 11 | * This header defines feature capabilities macros. |
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| 12 | */ |
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| 13 | |
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| 14 | #ifndef BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_ |
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| 15 | #define BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_ |
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| 16 | |
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| 17 | #include <boost/atomic/detail/config.hpp> |
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| 18 | #include <boost/atomic/detail/platform.hpp> |
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| 19 | #include <boost/atomic/detail/int_sizes.hpp> |
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| 20 | |
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| 21 | #if !defined(BOOST_ATOMIC_EMULATED) |
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| 22 | #include BOOST_ATOMIC_DETAIL_HEADER(boost/atomic/detail/caps_) |
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| 23 | #endif |
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| 24 | |
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| 25 | #ifdef BOOST_HAS_PRAGMA_ONCE |
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| 26 | #pragma once |
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| 27 | #endif |
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| 28 | |
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| 29 | #ifndef BOOST_ATOMIC_INT8_LOCK_FREE |
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| 30 | #define BOOST_ATOMIC_INT8_LOCK_FREE 0 |
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| 31 | #endif |
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| 32 | |
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| 33 | #ifndef BOOST_ATOMIC_INT16_LOCK_FREE |
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| 34 | #define BOOST_ATOMIC_INT16_LOCK_FREE 0 |
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| 35 | #endif |
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| 36 | |
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| 37 | #ifndef BOOST_ATOMIC_INT32_LOCK_FREE |
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| 38 | #define BOOST_ATOMIC_INT32_LOCK_FREE 0 |
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| 39 | #endif |
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| 40 | |
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| 41 | #ifndef BOOST_ATOMIC_INT64_LOCK_FREE |
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| 42 | #define BOOST_ATOMIC_INT64_LOCK_FREE 0 |
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| 43 | #endif |
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| 44 | |
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| 45 | #ifndef BOOST_ATOMIC_INT128_LOCK_FREE |
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| 46 | #define BOOST_ATOMIC_INT128_LOCK_FREE 0 |
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| 47 | #endif |
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| 48 | |
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| 49 | |
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| 50 | #ifndef BOOST_ATOMIC_CHAR_LOCK_FREE |
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| 51 | #define BOOST_ATOMIC_CHAR_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 52 | #endif |
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| 53 | |
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| 54 | #ifndef BOOST_ATOMIC_CHAR16_T_LOCK_FREE |
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| 55 | #define BOOST_ATOMIC_CHAR16_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE |
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| 56 | #endif |
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| 57 | |
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| 58 | #ifndef BOOST_ATOMIC_CHAR32_T_LOCK_FREE |
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| 59 | #define BOOST_ATOMIC_CHAR32_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 60 | #endif |
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| 61 | |
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| 62 | #ifndef BOOST_ATOMIC_WCHAR_T_LOCK_FREE |
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| 63 | #if BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 1 |
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| 64 | #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 65 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 2 |
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| 66 | #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE |
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| 67 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 4 |
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| 68 | #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 69 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 8 |
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| 70 | #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE |
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| 71 | #else |
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| 72 | #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE 0 |
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| 73 | #endif |
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| 74 | #endif |
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| 75 | |
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| 76 | #ifndef BOOST_ATOMIC_SHORT_LOCK_FREE |
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| 77 | #if BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 1 |
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| 78 | #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 79 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 2 |
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| 80 | #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE |
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| 81 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 4 |
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| 82 | #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 83 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 8 |
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| 84 | #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE |
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| 85 | #else |
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| 86 | #define BOOST_ATOMIC_SHORT_LOCK_FREE 0 |
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| 87 | #endif |
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| 88 | #endif |
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| 89 | |
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| 90 | #ifndef BOOST_ATOMIC_INT_LOCK_FREE |
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| 91 | #if BOOST_ATOMIC_DETAIL_SIZEOF_INT == 1 |
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| 92 | #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 93 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 2 |
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| 94 | #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE |
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| 95 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 4 |
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| 96 | #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 97 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 8 |
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| 98 | #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE |
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| 99 | #else |
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| 100 | #define BOOST_ATOMIC_INT_LOCK_FREE 0 |
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| 101 | #endif |
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| 102 | #endif |
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| 103 | |
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| 104 | #ifndef BOOST_ATOMIC_LONG_LOCK_FREE |
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| 105 | #if BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 1 |
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| 106 | #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 107 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 2 |
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| 108 | #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE |
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| 109 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 4 |
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| 110 | #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 111 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 8 |
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| 112 | #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE |
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| 113 | #else |
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| 114 | #define BOOST_ATOMIC_LONG_LOCK_FREE 0 |
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| 115 | #endif |
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| 116 | #endif |
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| 117 | |
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| 118 | #ifndef BOOST_ATOMIC_LLONG_LOCK_FREE |
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| 119 | #if BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 1 |
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| 120 | #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 121 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 2 |
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| 122 | #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE |
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| 123 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 4 |
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| 124 | #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 125 | #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 8 |
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| 126 | #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE |
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| 127 | #else |
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| 128 | #define BOOST_ATOMIC_LLONG_LOCK_FREE 0 |
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| 129 | #endif |
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| 130 | #endif |
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| 131 | |
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| 132 | #ifndef BOOST_ATOMIC_POINTER_LOCK_FREE |
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| 133 | #if (BOOST_ATOMIC_DETAIL_SIZEOF_POINTER + 0) == 8 |
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| 134 | #define BOOST_ATOMIC_POINTER_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE |
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| 135 | #elif (BOOST_ATOMIC_DETAIL_SIZEOF_POINTER + 0) == 4 |
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| 136 | #define BOOST_ATOMIC_POINTER_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE |
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| 137 | #else |
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| 138 | #define BOOST_ATOMIC_POINTER_LOCK_FREE 0 |
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| 139 | #endif |
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| 140 | #endif |
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| 141 | |
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| 142 | #define BOOST_ATOMIC_ADDRESS_LOCK_FREE BOOST_ATOMIC_POINTER_LOCK_FREE |
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| 143 | |
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| 144 | #ifndef BOOST_ATOMIC_BOOL_LOCK_FREE |
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| 145 | // We store bools in 1-byte storage in all backends |
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| 146 | #define BOOST_ATOMIC_BOOL_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE |
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| 147 | #endif |
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| 148 | |
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| 149 | #ifndef BOOST_ATOMIC_FLAG_LOCK_FREE |
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| 150 | #define BOOST_ATOMIC_FLAG_LOCK_FREE BOOST_ATOMIC_BOOL_LOCK_FREE |
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| 151 | #endif |
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| 152 | |
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| 153 | #ifndef BOOST_ATOMIC_THREAD_FENCE |
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| 154 | #define BOOST_ATOMIC_THREAD_FENCE 0 |
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| 155 | #endif |
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| 156 | |
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| 157 | #ifndef BOOST_ATOMIC_SIGNAL_FENCE |
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| 158 | #define BOOST_ATOMIC_SIGNAL_FENCE 0 |
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| 159 | #endif |
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| 160 | |
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| 161 | #endif // BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_ |
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| 162 | |
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