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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_EMULATED) #include BOOST_ATOMIC_DETAIL_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 #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_