2 * Distributed under the Boost Software License, Version 1.0.
3 * (See accompanying file LICENSE_1_0.txt or copy at
4 * http://www.boost.org/LICENSE_1_0.txt)
6 * Copyright (c) 2020 Andrey Semashev
9 * \file atomic/detail/wait_caps_futex.hpp
11 * This header defines waiting/notifying operations capabilities macros.
14 #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_
15 #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_
17 #include <boost/atomic/detail/config.hpp>
18 #include <boost/atomic/detail/capabilities.hpp>
19 #include <boost/atomic/detail/futex.hpp>
21 #ifdef BOOST_HAS_PRAGMA_ONCE
25 #if defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
26 // futexes are always 32-bit and they always supported address-free operations
27 #define BOOST_ATOMIC_HAS_NATIVE_INT32_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
28 #define BOOST_ATOMIC_HAS_NATIVE_INT32_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
29 #endif // defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
31 #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_