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- /*
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or copy at
- * http://www.boost.org/LICENSE_1_0.txt)
- *
- * Copyright (c) 2014 Andrey Semashev
- */
- /*!
- * \file atomic/capabilities.hpp
- *
- * This header defines feature capabilities macros.
- */
- #ifndef BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_
- #define BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_
- #include <boost/atomic/detail/config.hpp>
- #include <boost/atomic/detail/platform.hpp>
- #include <boost/atomic/detail/int_sizes.hpp>
- #if !defined(BOOST_ATOMIC_NO_FLOATING_POINT)
- #include <boost/atomic/detail/float_sizes.hpp>
- #endif
- #if !defined(BOOST_ATOMIC_EMULATED)
- #include BOOST_ATOMIC_DETAIL_BACKEND_HEADER(boost/atomic/detail/caps_)
- #endif
- #ifdef BOOST_HAS_PRAGMA_ONCE
- #pragma once
- #endif
- #ifndef BOOST_ATOMIC_INT8_LOCK_FREE
- #define BOOST_ATOMIC_INT8_LOCK_FREE 0
- #endif
- #ifndef BOOST_ATOMIC_INT16_LOCK_FREE
- #define BOOST_ATOMIC_INT16_LOCK_FREE 0
- #endif
- #ifndef BOOST_ATOMIC_INT32_LOCK_FREE
- #define BOOST_ATOMIC_INT32_LOCK_FREE 0
- #endif
- #ifndef BOOST_ATOMIC_INT64_LOCK_FREE
- #define BOOST_ATOMIC_INT64_LOCK_FREE 0
- #endif
- #ifndef BOOST_ATOMIC_INT128_LOCK_FREE
- #define BOOST_ATOMIC_INT128_LOCK_FREE 0
- #endif
- #ifndef BOOST_ATOMIC_CHAR_LOCK_FREE
- #define BOOST_ATOMIC_CHAR_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #endif
- #ifndef BOOST_ATOMIC_CHAR16_T_LOCK_FREE
- #define BOOST_ATOMIC_CHAR16_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #endif
- #ifndef BOOST_ATOMIC_CHAR32_T_LOCK_FREE
- #define BOOST_ATOMIC_CHAR32_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #endif
- #ifndef BOOST_ATOMIC_WCHAR_T_LOCK_FREE
- #if BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 1
- #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 2
- #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 4
- #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 8
- #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #else
- #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE 0
- #endif
- #endif
- #ifndef BOOST_ATOMIC_SHORT_LOCK_FREE
- #if BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 1
- #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 2
- #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 4
- #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 8
- #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #else
- #define BOOST_ATOMIC_SHORT_LOCK_FREE 0
- #endif
- #endif
- #ifndef BOOST_ATOMIC_INT_LOCK_FREE
- #if BOOST_ATOMIC_DETAIL_SIZEOF_INT == 1
- #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 2
- #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 4
- #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 8
- #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #else
- #define BOOST_ATOMIC_INT_LOCK_FREE 0
- #endif
- #endif
- #ifndef BOOST_ATOMIC_LONG_LOCK_FREE
- #if BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 1
- #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 2
- #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 4
- #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 8
- #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #else
- #define BOOST_ATOMIC_LONG_LOCK_FREE 0
- #endif
- #endif
- #ifndef BOOST_ATOMIC_LLONG_LOCK_FREE
- #if BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 1
- #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 2
- #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 4
- #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 8
- #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #else
- #define BOOST_ATOMIC_LLONG_LOCK_FREE 0
- #endif
- #endif
- #ifndef BOOST_ATOMIC_POINTER_LOCK_FREE
- #if (BOOST_ATOMIC_DETAIL_SIZEOF_POINTER + 0) == 8
- #define BOOST_ATOMIC_POINTER_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #elif (BOOST_ATOMIC_DETAIL_SIZEOF_POINTER + 0) == 4
- #define BOOST_ATOMIC_POINTER_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #else
- #define BOOST_ATOMIC_POINTER_LOCK_FREE 0
- #endif
- #endif
- #define BOOST_ATOMIC_ADDRESS_LOCK_FREE BOOST_ATOMIC_POINTER_LOCK_FREE
- #ifndef BOOST_ATOMIC_BOOL_LOCK_FREE
- // We store bools in 1-byte storage in all backends
- #define BOOST_ATOMIC_BOOL_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
- #endif
- #ifndef BOOST_ATOMIC_FLAG_LOCK_FREE
- #define BOOST_ATOMIC_FLAG_LOCK_FREE BOOST_ATOMIC_BOOL_LOCK_FREE
- #endif
- #if !defined(BOOST_ATOMIC_NO_FLOATING_POINT)
- #if !defined(BOOST_ATOMIC_FLOAT_LOCK_FREE) && defined(BOOST_ATOMIC_DETAIL_SIZEOF_FLOAT)
- #if BOOST_ATOMIC_DETAIL_SIZEOF_FLOAT == 2
- #define BOOST_ATOMIC_FLOAT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_FLOAT == 4
- #define BOOST_ATOMIC_FLOAT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_FLOAT == 8
- #define BOOST_ATOMIC_FLOAT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_FLOAT == 16
- #define BOOST_ATOMIC_FLOAT_LOCK_FREE BOOST_ATOMIC_INT128_LOCK_FREE
- #else
- #define BOOST_ATOMIC_FLOAT_LOCK_FREE 0
- #endif
- #endif
- #if !defined(BOOST_ATOMIC_DOUBLE_LOCK_FREE) && defined(BOOST_ATOMIC_DETAIL_SIZEOF_DOUBLE)
- #if BOOST_ATOMIC_DETAIL_SIZEOF_DOUBLE == 2
- #define BOOST_ATOMIC_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_DOUBLE == 4
- #define BOOST_ATOMIC_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_DOUBLE == 8
- #define BOOST_ATOMIC_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_DOUBLE == 16
- #define BOOST_ATOMIC_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT128_LOCK_FREE
- #else
- #define BOOST_ATOMIC_DOUBLE_LOCK_FREE 0
- #endif
- #endif
- #if !defined(BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE) && defined(BOOST_ATOMIC_DETAIL_SIZEOF_LONG_DOUBLE)
- #if BOOST_ATOMIC_DETAIL_SIZEOF_LONG_DOUBLE == 2
- #define BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG_DOUBLE == 4
- #define BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG_DOUBLE == 8
- #define BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
- #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG_DOUBLE == 16
- #define BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE BOOST_ATOMIC_INT128_LOCK_FREE
- #else
- #define BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE 0
- #endif
- #endif
- #endif // !defined(BOOST_ATOMIC_NO_FLOATING_POINT)
- #ifndef BOOST_ATOMIC_THREAD_FENCE
- #define BOOST_ATOMIC_THREAD_FENCE 0
- #endif
- #ifndef BOOST_ATOMIC_SIGNAL_FENCE
- #define BOOST_ATOMIC_SIGNAL_FENCE 0
- #endif
- #endif // BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_
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