92 lines
2.8 KiB
C++
Executable File
92 lines
2.8 KiB
C++
Executable File
/*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* Copyright (c) 2020 Andrey Semashev
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*/
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/*!
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* \file atomic/ipc_atomic.hpp
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*
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* This header contains definition of \c ipc_atomic template.
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*/
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#ifndef BOOST_ATOMIC_IPC_ATOMIC_HPP_INCLUDED_
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#define BOOST_ATOMIC_IPC_ATOMIC_HPP_INCLUDED_
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#include <cstddef>
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#include <boost/static_assert.hpp>
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#include <boost/memory_order.hpp>
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#include <boost/atomic/capabilities.hpp>
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#include <boost/atomic/detail/config.hpp>
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#include <boost/atomic/detail/classify.hpp>
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#include <boost/atomic/detail/atomic_impl.hpp>
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#include <boost/atomic/detail/type_traits/is_trivially_copyable.hpp>
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#include <boost/atomic/detail/type_traits/is_nothrow_default_constructible.hpp>
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#include <boost/atomic/detail/header.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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namespace atomics {
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//! Atomic object for inter-process communication
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template< typename T >
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class ipc_atomic :
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public atomics::detail::base_atomic< T, typename atomics::detail::classify< T >::type, true >
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{
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private:
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typedef atomics::detail::base_atomic< T, typename atomics::detail::classify< T >::type, true > base_type;
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typedef typename base_type::value_arg_type value_arg_type;
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public:
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typedef typename base_type::value_type value_type;
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BOOST_STATIC_ASSERT_MSG(sizeof(value_type) > 0u, "boost::ipc_atomic<T> requires T to be a complete type");
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#if !defined(BOOST_ATOMIC_DETAIL_NO_CXX11_IS_TRIVIALLY_COPYABLE)
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BOOST_STATIC_ASSERT_MSG(atomics::detail::is_trivially_copyable< value_type >::value, "boost::ipc_atomic<T> requires T to be a trivially copyable type");
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#endif
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public:
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BOOST_FORCEINLINE BOOST_ATOMIC_DETAIL_CONSTEXPR_UNION_INIT ipc_atomic() BOOST_NOEXCEPT_IF(atomics::detail::is_nothrow_default_constructible< value_type >::value) : base_type()
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{
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}
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BOOST_FORCEINLINE BOOST_ATOMIC_DETAIL_CONSTEXPR_UNION_INIT ipc_atomic(value_arg_type v) BOOST_NOEXCEPT : base_type(v)
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{
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}
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BOOST_FORCEINLINE value_type operator= (value_arg_type v) BOOST_NOEXCEPT
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{
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this->store(v);
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return v;
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}
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BOOST_FORCEINLINE value_type operator= (value_arg_type v) volatile BOOST_NOEXCEPT
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{
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this->store(v);
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return v;
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}
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BOOST_FORCEINLINE operator value_type() const volatile BOOST_NOEXCEPT
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{
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return this->load();
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}
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BOOST_DELETED_FUNCTION(ipc_atomic(ipc_atomic const&))
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BOOST_DELETED_FUNCTION(ipc_atomic& operator= (ipc_atomic const&))
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BOOST_DELETED_FUNCTION(ipc_atomic& operator= (ipc_atomic const&) volatile)
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};
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} // namespace atomics
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using atomics::ipc_atomic;
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} // namespace boost
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#include <boost/atomic/detail/footer.hpp>
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#endif // BOOST_ATOMIC_IPC_ATOMIC_HPP_INCLUDED_
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