|
// Copyright Oliver Kowalke 2013.
|
// 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)
|
|
#ifndef BOOST_FIBERS_SPINLOCK_H
|
#define BOOST_FIBERS_SPINLOCK_H
|
|
#include <boost/config.hpp>
|
|
#include <boost/fiber/detail/config.hpp>
|
|
#if !defined(BOOST_FIBERS_NO_ATOMICS)
|
# include <mutex>
|
# include <boost/fiber/detail/spinlock_ttas_adaptive.hpp>
|
# include <boost/fiber/detail/spinlock_ttas.hpp>
|
# if defined(BOOST_FIBERS_HAS_FUTEX)
|
# include <boost/fiber/detail/spinlock_ttas_adaptive_futex.hpp>
|
# include <boost/fiber/detail/spinlock_ttas_futex.hpp>
|
# endif
|
# if defined(BOOST_USE_TSX)
|
# include <boost/fiber/detail/spinlock_rtm.hpp>
|
# endif
|
#endif
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
# include BOOST_ABI_PREFIX
|
#endif
|
|
namespace boost {
|
namespace fibers {
|
namespace detail {
|
|
#if defined(BOOST_FIBERS_NO_ATOMICS)
|
struct spinlock {
|
constexpr spinlock() noexcept {}
|
void lock() noexcept {}
|
void unlock() noexcept {}
|
};
|
|
struct spinlock_lock {
|
constexpr spinlock_lock( spinlock &) noexcept {}
|
void lock() noexcept {}
|
void unlock() noexcept {}
|
};
|
#else
|
# if defined(BOOST_FIBERS_SPINLOCK_STD_MUTEX)
|
using spinlock = std::mutex;
|
# elif defined(BOOST_FIBERS_SPINLOCK_TTAS_FUTEX)
|
# if defined(BOOST_USE_TSX)
|
using spinlock = spinlock_rtm< spinlock_ttas_futex >;
|
# else
|
using spinlock = spinlock_ttas_futex;
|
# endif
|
# elif defined(BOOST_FIBERS_SPINLOCK_TTAS_ADAPTIVE_FUTEX)
|
# if defined(BOOST_USE_TSX)
|
using spinlock = spinlock_rtm< spinlock_ttas_adaptive_futex >;
|
# else
|
using spinlock = spinlock_ttas_adaptive_futex;
|
# endif
|
# elif defined(BOOST_FIBERS_SPINLOCK_TTAS_ADAPTIVE)
|
# if defined(BOOST_USE_TSX)
|
using spinlock = spinlock_rtm< spinlock_ttas_adaptive >;
|
# else
|
using spinlock = spinlock_ttas_adaptive;
|
# endif
|
# else
|
# if defined(BOOST_USE_TSX)
|
using spinlock = spinlock_rtm< spinlock_ttas >;
|
# else
|
using spinlock = spinlock_ttas;
|
# endif
|
# endif
|
using spinlock_lock = std::unique_lock< spinlock >;
|
#endif
|
|
}}}
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
# include BOOST_ABI_SUFFIX
|
#endif
|
|
#endif // BOOST_FIBERS_SPINLOCK_H
|
