wait_caps_futex.hpp 1.0 KB

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  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_futex.hpp
  10. *
  11. * This header defines waiting/notifying operations capabilities macros.
  12. */
  13. #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_
  14. #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_
  15. #include <boost/atomic/detail/config.hpp>
  16. #include <boost/atomic/detail/capabilities.hpp>
  17. #include <boost/atomic/detail/futex.hpp>
  18. #ifdef BOOST_HAS_PRAGMA_ONCE
  19. #pragma once
  20. #endif
  21. #if defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
  22. // futexes are always 32-bit and they always supported address-free operations
  23. #define BOOST_ATOMIC_HAS_NATIVE_INT32_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
  24. #define BOOST_ATOMIC_HAS_NATIVE_INT32_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE
  25. #endif // defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
  26. #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_FUTEX_HPP_INCLUDED_