Chris@16: #ifndef BOOST_ATOMIC_ATOMIC_HPP
Chris@16: #define BOOST_ATOMIC_ATOMIC_HPP
Chris@16: 
Chris@16: //  Copyright (c) 2011 Helge Bahmann
Chris@16: //  Copyright (c) 2013 Tim Blechmann
Chris@16: //
Chris@16: //  Distributed under the Boost Software License, Version 1.0.
Chris@16: //  See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #include <cstddef>
Chris@16: #include <boost/cstdint.hpp>
Chris@16: 
Chris@16: #include <boost/memory_order.hpp>
Chris@16: 
Chris@16: #include <boost/atomic/detail/config.hpp>
Chris@16: #include <boost/atomic/detail/platform.hpp>
Chris@16: #include <boost/atomic/detail/type-classification.hpp>
Chris@16: #include <boost/type_traits/is_signed.hpp>
Chris@16: #if defined(BOOST_MSVC) && BOOST_MSVC < 1400
Chris@16: #include <boost/type_traits/is_integral.hpp>
Chris@16: #include <boost/mpl/and.hpp>
Chris@16: #endif
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_CHAR_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_CHAR_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_CHAR16_T_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_CHAR16_T_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_CHAR32_T_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_CHAR32_T_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_WCHAR_T_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_SHORT_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_SHORT_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_INT_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_INT_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_LONG_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_LONG_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_LLONG_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_LLONG_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_INT128_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_INT128_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_POINTER_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_POINTER_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #define BOOST_ATOMIC_ADDRESS_LOCK_FREE BOOST_ATOMIC_POINTER_LOCK_FREE
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_BOOL_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_BOOL_LOCK_FREE 0
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_THREAD_FENCE
Chris@16: #define BOOST_ATOMIC_THREAD_FENCE 0
Chris@16: inline void atomic_thread_fence(memory_order)
Chris@16: {
Chris@16: }
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_SIGNAL_FENCE
Chris@16: #define BOOST_ATOMIC_SIGNAL_FENCE 0
Chris@16: inline void atomic_signal_fence(memory_order order)
Chris@16: {
Chris@16:     atomic_thread_fence(order);
Chris@16: }
Chris@16: #endif
Chris@16: 
Chris@16: template<typename T>
Chris@16: class atomic :
Chris@16:     public atomics::detail::base_atomic<
Chris@16:         T,
Chris@16:         typename atomics::detail::classify<T>::type,
Chris@16:         atomics::detail::storage_size_of<T>::value,
Chris@16: #if !defined(BOOST_MSVC) || BOOST_MSVC >= 1400
Chris@16:         boost::is_signed<T>::value
Chris@16: #else
Chris@16:         // MSVC 2003 has problems instantiating is_signed on non-integral types
Chris@16:         mpl::and_< boost::is_integral<T>, boost::is_signed<T> >::value
Chris@16: #endif
Chris@16:     >
Chris@16: {
Chris@16: private:
Chris@16:     typedef T value_type;
Chris@16:     typedef atomics::detail::base_atomic<
Chris@16:         T,
Chris@16:         typename atomics::detail::classify<T>::type,
Chris@16:         atomics::detail::storage_size_of<T>::value,
Chris@16: #if !defined(BOOST_MSVC) || BOOST_MSVC >= 1400
Chris@16:         boost::is_signed<T>::value
Chris@16: #else
Chris@16:         // MSVC 2003 has problems instantiating is_signed on non-itegral types
Chris@16:         mpl::and_< boost::is_integral<T>, boost::is_signed<T> >::value
Chris@16: #endif
Chris@16:     > super;
Chris@16:     typedef typename super::value_arg_type value_arg_type;
Chris@16: 
Chris@16: public:
Chris@16:     BOOST_DEFAULTED_FUNCTION(atomic(void), BOOST_NOEXCEPT {})
Chris@16: 
Chris@16:     // NOTE: The constructor is made explicit because gcc 4.7 complains that
Chris@16:     //       operator=(value_arg_type) is considered ambiguous with operator=(atomic const&)
Chris@16:     //       in assignment expressions, even though conversion to atomic<> is less preferred
Chris@16:     //       than conversion to value_arg_type.
Chris@16:     explicit BOOST_CONSTEXPR atomic(value_arg_type v) BOOST_NOEXCEPT : super(v) {}
Chris@16: 
Chris@16:     value_type operator=(value_arg_type v) volatile BOOST_NOEXCEPT
Chris@16:     {
Chris@16:         this->store(v);
Chris@16:         return v;
Chris@16:     }
Chris@16: 
Chris@16:     operator value_type(void) volatile const BOOST_NOEXCEPT
Chris@16:     {
Chris@16:         return this->load();
Chris@16:     }
Chris@16: 
Chris@16:     BOOST_DELETED_FUNCTION(atomic(atomic const&))
Chris@16:     BOOST_DELETED_FUNCTION(atomic& operator=(atomic const&) volatile)
Chris@16: };
Chris@16: 
Chris@16: typedef atomic<char> atomic_char;
Chris@16: typedef atomic<unsigned char> atomic_uchar;
Chris@16: typedef atomic<signed char> atomic_schar;
Chris@16: typedef atomic<uint8_t> atomic_uint8_t;
Chris@16: typedef atomic<int8_t> atomic_int8_t;
Chris@16: typedef atomic<unsigned short> atomic_ushort;
Chris@16: typedef atomic<short> atomic_short;
Chris@16: typedef atomic<uint16_t> atomic_uint16_t;
Chris@16: typedef atomic<int16_t> atomic_int16_t;
Chris@16: typedef atomic<unsigned int> atomic_uint;
Chris@16: typedef atomic<int> atomic_int;
Chris@16: typedef atomic<uint32_t> atomic_uint32_t;
Chris@16: typedef atomic<int32_t> atomic_int32_t;
Chris@16: typedef atomic<unsigned long> atomic_ulong;
Chris@16: typedef atomic<long> atomic_long;
Chris@16: typedef atomic<uint64_t> atomic_uint64_t;
Chris@16: typedef atomic<int64_t> atomic_int64_t;
Chris@16: #ifdef BOOST_HAS_LONG_LONG
Chris@16: typedef atomic<boost::ulong_long_type> atomic_ullong;
Chris@16: typedef atomic<boost::long_long_type> atomic_llong;
Chris@16: #endif
Chris@16: typedef atomic<void*> atomic_address;
Chris@16: typedef atomic<bool> atomic_bool;
Chris@16: typedef atomic<wchar_t> atomic_wchar_t;
Chris@16: #if !defined(BOOST_NO_CXX11_CHAR16_T)
Chris@16: typedef atomic<char16_t> atomic_char16_t;
Chris@16: #endif
Chris@16: #if !defined(BOOST_NO_CXX11_CHAR32_T)
Chris@16: typedef atomic<char32_t> atomic_char32_t;
Chris@16: #endif
Chris@16: 
Chris@16: typedef atomic<int_least8_t> atomic_int_least8_t;
Chris@16: typedef atomic<uint_least8_t> atomic_uint_least8_t;
Chris@16: typedef atomic<int_least16_t> atomic_int_least16_t;
Chris@16: typedef atomic<uint_least16_t> atomic_uint_least16_t;
Chris@16: typedef atomic<int_least32_t> atomic_int_least32_t;
Chris@16: typedef atomic<uint_least32_t> atomic_uint_least32_t;
Chris@16: typedef atomic<int_least64_t> atomic_int_least64_t;
Chris@16: typedef atomic<uint_least64_t> atomic_uint_least64_t;
Chris@16: typedef atomic<int_fast8_t> atomic_int_fast8_t;
Chris@16: typedef atomic<uint_fast8_t> atomic_uint_fast8_t;
Chris@16: typedef atomic<int_fast16_t> atomic_int_fast16_t;
Chris@16: typedef atomic<uint_fast16_t> atomic_uint_fast16_t;
Chris@16: typedef atomic<int_fast32_t> atomic_int_fast32_t;
Chris@16: typedef atomic<uint_fast32_t> atomic_uint_fast32_t;
Chris@16: typedef atomic<int_fast64_t> atomic_int_fast64_t;
Chris@16: typedef atomic<uint_fast64_t> atomic_uint_fast64_t;
Chris@16: typedef atomic<intmax_t> atomic_intmax_t;
Chris@16: typedef atomic<uintmax_t> atomic_uintmax_t;
Chris@16: 
Chris@16: typedef atomic<std::size_t> atomic_size_t;
Chris@16: typedef atomic<std::ptrdiff_t> atomic_ptrdiff_t;
Chris@16: 
Chris@16: #if defined(BOOST_HAS_INTPTR_T)
Chris@16: typedef atomic<intptr_t> atomic_intptr_t;
Chris@16: typedef atomic<uintptr_t> atomic_uintptr_t;
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_ATOMIC_FLAG_LOCK_FREE
Chris@16: #define BOOST_ATOMIC_FLAG_LOCK_FREE 0
Chris@16: class atomic_flag
Chris@16: {
Chris@16: public:
Chris@16:     BOOST_CONSTEXPR atomic_flag(void) BOOST_NOEXCEPT : v_(false) {}
Chris@16: 
Chris@16:     bool
Chris@16:     test_and_set(memory_order order = memory_order_seq_cst) BOOST_NOEXCEPT
Chris@16:     {
Chris@16:         return v_.exchange(true, order);
Chris@16:     }
Chris@16: 
Chris@16:     void
Chris@16:     clear(memory_order order = memory_order_seq_cst) volatile BOOST_NOEXCEPT
Chris@16:     {
Chris@16:         v_.store(false, order);
Chris@16:     }
Chris@16: 
Chris@16:     BOOST_DELETED_FUNCTION(atomic_flag(atomic_flag const&))
Chris@16:     BOOST_DELETED_FUNCTION(atomic_flag& operator=(atomic_flag const&))
Chris@16: 
Chris@16: private:
Chris@16:     atomic<bool> v_;
Chris@16: };
Chris@16: #endif
Chris@16: 
Chris@16: }
Chris@16: 
Chris@16: #endif