atomic/detail/wait_caps_dragonfly_umtx.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_dragonfly_umtx.hpp
0010  *
0011  * This header defines waiting/notifying operations capabilities macros.
0012  */
0013
0014 #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_DRAGONFLY_UMTX_HPP_INCLUDED_
0015 #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_DRAGONFLY_UMTX_HPP_INCLUDED_
0016
0017 #include <boost/atomic/detail/config.hpp>
0018 #include <boost/atomic/detail/capabilities.hpp>
0019
0020 #ifdef BOOST_HAS_PRAGMA_ONCE
0021 #pragma once
0022 #endif
0023
0024 // DragonFly BSD umtx_sleep/umtx_wakeup use physical address to the atomic object as a key, which means it should support address-free operations.
0025 // https://man.dragonflybsd.org/?command=umtx&section=2
0026
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
0030 #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_DRAGONFLY_UMTX_HPP_INCLUDED_