| 1 | /* |
|---|---|
| 2 | * Copyright Andrey Semashev 2016. |
| 3 | * Distributed under the Boost Software License, Version 1.0. |
| 4 | * (See accompanying file LICENSE_1_0.txt or copy at |
| 5 | * http://www.boost.org/LICENSE_1_0.txt) |
| 6 | */ |
| 7 | /*! |
| 8 | * \file pause.hpp |
| 9 | * \author Andrey Semashev |
| 10 | * \date 06.01.2016 |
| 11 | * |
| 12 | * \brief This header is the Boost.Log library implementation, see the library documentation |
| 13 | * at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html. |
| 14 | */ |
| 15 | |
| 16 | #ifndef BOOST_LOG_DETAIL_PAUSE_HPP_INCLUDED_ |
| 17 | #define BOOST_LOG_DETAIL_PAUSE_HPP_INCLUDED_ |
| 18 | |
| 19 | #include <boost/log/detail/config.hpp> |
| 20 | #include <boost/log/detail/header.hpp> |
| 21 | |
| 22 | #ifdef BOOST_HAS_PRAGMA_ONCE |
| 23 | #pragma once |
| 24 | #endif |
| 25 | |
| 26 | #if defined(__INTEL_COMPILER) || defined(_MSC_VER) |
| 27 | # if defined(_M_IX86) |
| 28 | # define BOOST_LOG_AUX_PAUSE __asm { pause } |
| 29 | # elif defined(_M_AMD64) |
| 30 | extern "C"void _mm_pause(void); |
| 31 | # if defined(BOOST_MSVC) |
| 32 | # pragma intrinsic(_mm_pause) |
| 33 | # endif |
| 34 | # define BOOST_LOG_AUX_PAUSE _mm_pause() |
| 35 | # endif |
| 36 | #elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) |
| 37 | # define BOOST_LOG_AUX_PAUSE __asm__ __volatile__("pause;") |
| 38 | #endif |
| 39 | |
| 40 | namespace boost { |
| 41 | |
| 42 | BOOST_LOG_OPEN_NAMESPACE |
| 43 | |
| 44 | namespace aux { |
| 45 | |
| 46 | BOOST_FORCEINLINE void pause() BOOST_NOEXCEPT |
| 47 | { |
| 48 | #if defined(BOOST_LOG_AUX_PAUSE) |
| 49 | BOOST_LOG_AUX_PAUSE; |
| 50 | #endif |
| 51 | } |
| 52 | |
| 53 | } // namespace aux |
| 54 | |
| 55 | BOOST_LOG_CLOSE_NAMESPACE // namespace log |
| 56 | |
| 57 | } // namespace boost |
| 58 | |
| 59 | #include <boost/log/detail/footer.hpp> |
| 60 | |
| 61 | #endif // BOOST_LOG_DETAIL_PAUSE_HPP_INCLUDED_ |
| 62 |