atomic/detail/wait_caps_futex.hpp

0001 /*
0002  * Distributed under the Boost Software License, Version 1.0.
0003  * (See accompanying file LICENSE_1_0.txt or copy at
0004  * http://www.boost.org/LICENSE_1_0.txt)
0005  *
0006  * Copyright (c) 2020 Andrey Semashev
0007  */
0008 /*!
0009  * \file   atomic/detail/wait_caps_futex.hpp
0010  *
0011  * This header defines waiting/notifying operations capabilities macros.
0012  */
0013
0014 #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_
0015 #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_
0016
0017 #include <boost/atomic/detail/config.hpp>
0018 #include <boost/atomic/detail/capabilities.hpp>
0019 #include <boost/atomic/detail/futex.hpp>
0020
0021 #ifdef BOOST_HAS_PRAGMA_ONCE
0022 #pragma once
0023 #endif
0024
0025 #if defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
0026 // futexes are always 32-bit and they always supported address-free operations
0027 #define BOOST_ATOMIC_HAS_NATIVE_INT32_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
0028 #define BOOST_ATOMIC_HAS_NATIVE_INT32_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
0029 #endif // defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
0030
0031 #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_