| /* |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE_1_0.txt or copy at |
| * http://www.boost.org/LICENSE_1_0.txt) |
| * |
| * Copyright (c) 2020 Andrey Semashev |
| */ |
| /*! |
| * \file atomic/detail/wait_caps_freebsd_umtx.hpp |
| * |
| * This header defines waiting/notifying operations capabilities macros. |
| */ |
| |
| #ifndef BOOST_ATOMIC_DETAIL_WAIT_CAPS_FREEBSD_UMTX_HPP_INCLUDED_ |
| #define BOOST_ATOMIC_DETAIL_WAIT_CAPS_FREEBSD_UMTX_HPP_INCLUDED_ |
| |
| #include <sys/umtx.h> |
| #include <boost/atomic/detail/config.hpp> |
| #include <boost/atomic/detail/int_sizes.hpp> |
| #include <boost/atomic/detail/capabilities.hpp> |
| |
| #ifdef BOOST_HAS_PRAGMA_ONCE |
| #pragma once |
| #endif |
| |
| // FreeBSD _umtx_op uses physical address to the atomic object as a key, which means it should support address-free operations. |
| // https://www.freebsd.org/cgi/man.cgi?query=_umtx_op&apropos=0&sektion=2&manpath=FreeBSD+11-current&format=html |
| |
| #if (defined(UMTX_OP_WAIT_UINT) && BOOST_ATOMIC_DETAIL_SIZEOF_INT == 4) ||\ |
| (defined(UMTX_OP_WAIT) && BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 4) |
| #define BOOST_ATOMIC_HAS_NATIVE_INT32_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE |
| #define BOOST_ATOMIC_HAS_NATIVE_INT32_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT32_LOCK_FREE |
| #endif |
| |
| #if defined(UMTX_OP_WAIT) && BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 8 |
| #define BOOST_ATOMIC_HAS_NATIVE_INT64_WAIT_NOTIFY BOOST_ATOMIC_INT64_LOCK_FREE |
| #define BOOST_ATOMIC_HAS_NATIVE_INT64_IPC_WAIT_NOTIFY BOOST_ATOMIC_INT64_LOCK_FREE |
| #endif |
| |
| #endif // BOOST_ATOMIC_DETAIL_WAIT_CAPS_FREEBSD_UMTX_HPP_INCLUDED_ |
