ceph/src/boost/boost/atomic/detail/wait_caps_dragonfly_umtx.hpp

   1 /*
   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)
   5  *
   6  * Copyright (c) 2020 Andrey Semashev
   7  */
   8 /*!
   9  * \file   atomic/detail/wait_caps_dragonfly_umtx.hpp
  10  *
  11  * This header defines waiting/notifying operations capabilities macros.
  12  */
  13
  14 #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_DRAGONFLY_UMTX_HPP_INCLUDED_
  15 #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_DRAGONFLY_UMTX_HPP_INCLUDED_
  16
  17 #include <boost/atomic/detail/config.hpp>
  18 #include <boost/atomic/detail/capabilities.hpp>
  19
  20 #ifdef BOOST_HAS_PRAGMA_ONCE
  21 #pragma once
  22 #endif
  23
  24 // DragonFly BSD umtx_sleep/umtx_wakeup use physical address to the atomic object as a key, which means it should support address-free operations.
  25 // https://man.dragonflybsd.org/?command=umtx&section=2
  26
  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
  30 #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_DRAGONFLY_UMTX_HPP_INCLUDED_