mirror of
https://github.com/boostorg/smart_ptr.git
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Use yield primitives from Core
This commit is contained in:
Peter Dimov
@ -1,51 +1,20 @@
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#ifndef BOOST_SMART_PTR_DETAIL_SP_THREAD_PAUSE_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_SP_THREAD_PAUSE_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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// boost/smart_ptr/detail/sp_thread_pause.hpp
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//
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// inline void bost::detail::sp_thread_pause();
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//
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// Emits a "pause" instruction.
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//
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// Copyright 2008, 2020 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0
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// Copyright 2023 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#if defined(_MSC_VER) && _MSC_VER >= 1310 && ( defined(_M_IX86) || defined(_M_X64) ) && !defined(__c2__)
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extern "C" void _mm_pause();
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#define BOOST_SP_PAUSE _mm_pause();
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#elif defined(__GNUC__) && ( defined(__i386__) || defined(__x86_64__) )
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#define BOOST_SP_PAUSE __asm__ __volatile__( "rep; nop" : : : "memory" );
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#else
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#define BOOST_SP_PAUSE
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#endif
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#include <boost/core/yield_primitives.hpp>
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_pause()
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{
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BOOST_SP_PAUSE
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}
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using boost::core::sp_thread_pause;
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} // namespace detail
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} // namespace boost
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#undef BOOST_SP_PAUSE
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_THREAD_PAUSE_HPP_INCLUDED
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@ -1,104 +1,20 @@
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#ifndef BOOST_SMART_PTR_DETAIL_SP_THREAD_SLEEP_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_SP_THREAD_SLEEP_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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// boost/smart_ptr/detail/sp_thread_sleep.hpp
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//
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// inline void bost::detail::sp_thread_sleep();
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//
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// Cease execution for a while to yield to other threads,
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// as if by calling nanosleep() with an appropriate interval.
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//
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// Copyright 2008, 2020 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0
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// Copyright 2023 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/config.hpp>
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#include <boost/config/pragma_message.hpp>
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#if defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined( __CYGWIN__ )
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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BOOST_PRAGMA_MESSAGE("Using Sleep(1) in sp_thread_sleep")
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#endif
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#include <boost/smart_ptr/detail/sp_win32_sleep.hpp>
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#include <boost/core/yield_primitives.hpp>
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_sleep()
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{
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Sleep( 1 );
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}
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using boost::core::sp_thread_sleep;
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} // namespace detail
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} // namespace boost
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#elif defined(BOOST_HAS_NANOSLEEP)
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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BOOST_PRAGMA_MESSAGE("Using nanosleep() in sp_thread_sleep")
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#endif
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#include <time.h>
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_sleep()
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{
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// g++ -Wextra warns on {} or {0}
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struct timespec rqtp = { 0, 0 };
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// POSIX says that timespec has tv_sec and tv_nsec
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// But it doesn't guarantee order or placement
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rqtp.tv_sec = 0;
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rqtp.tv_nsec = 1000;
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nanosleep( &rqtp, 0 );
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}
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} // namespace detail
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} // namespace boost
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#else
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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BOOST_PRAGMA_MESSAGE("Using sp_thread_yield() in sp_thread_sleep")
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#endif
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#include <boost/smart_ptr/detail/sp_thread_yield.hpp>
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_sleep()
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{
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sp_thread_yield();
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}
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} // namespace detail
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} // namespace boost
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#endif
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_THREAD_SLEEP_HPP_INCLUDED
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@ -1,100 +1,20 @@
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#ifndef BOOST_SMART_PTR_DETAIL_SP_THREAD_YIELD_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_SP_THREAD_YIELD_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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// boost/smart_ptr/detail/sp_thread_yield.hpp
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//
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// inline void bost::detail::sp_thread_yield();
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//
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// Gives up the remainder of the time slice,
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// as if by calling sched_yield().
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//
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// Copyright 2008, 2020 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0
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// Copyright 2023 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/config.hpp>
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#include <boost/config/pragma_message.hpp>
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#if defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined( __CYGWIN__ )
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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BOOST_PRAGMA_MESSAGE("Using Sleep(0) in sp_thread_yield")
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#endif
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#include <boost/smart_ptr/detail/sp_win32_sleep.hpp>
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#include <boost/core/yield_primitives.hpp>
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_yield()
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{
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Sleep( 0 );
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}
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using boost::core::sp_thread_yield;
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} // namespace detail
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} // namespace boost
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#elif defined(BOOST_HAS_SCHED_YIELD)
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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BOOST_PRAGMA_MESSAGE("Using sched_yield() in sp_thread_yield")
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#endif
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#ifndef _AIX
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# include <sched.h>
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#else
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// AIX's sched.h defines ::var which sometimes conflicts with Lambda's var
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extern "C" int sched_yield(void);
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#endif
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_yield()
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{
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sched_yield();
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}
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} // namespace detail
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} // namespace boost
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#else
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#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
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BOOST_PRAGMA_MESSAGE("Using sp_thread_pause() in sp_thread_yield")
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#endif
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#include <boost/smart_ptr/detail/sp_thread_pause.hpp>
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namespace boost
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{
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namespace detail
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{
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inline void sp_thread_yield()
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{
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sp_thread_pause();
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}
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} // namespace detail
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} // namespace boost
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#endif
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_THREAD_YIELD_HPP_INCLUDED
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@ -1,49 +0,0 @@
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#ifndef BOOST_SMART_PTR_DETAIL_SP_WIN32_SLEEP_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_SP_WIN32_SLEEP_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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// boost/smart_ptr/detail/sp_win32_sleep.hpp
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//
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// Declares the Win32 Sleep() function.
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//
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// Copyright 2008, 2020 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0
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// https://www.boost.org/LICENSE_1_0.txt
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#if defined( BOOST_USE_WINDOWS_H )
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# include <windows.h>
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#endif
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namespace boost
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{
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namespace detail
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{
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#if !defined( BOOST_USE_WINDOWS_H )
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#if defined(__clang__) && defined(__x86_64__)
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// clang x64 warns that __stdcall is ignored
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# define BOOST_SP_STDCALL
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#else
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# define BOOST_SP_STDCALL __stdcall
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#endif
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#if defined(__LP64__) // Cygwin 64
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extern "C" __declspec(dllimport) void BOOST_SP_STDCALL Sleep( unsigned int ms );
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#else
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extern "C" __declspec(dllimport) void BOOST_SP_STDCALL Sleep( unsigned long ms );
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#endif
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#undef BOOST_SP_STDCALL
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#endif // !defined( BOOST_USE_WINDOWS_H )
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} // namespace detail
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} // namespace boost
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_WIN32_SLEEP_HPP_INCLUDED
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