66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
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// Copyright Oliver Kowalke 2013.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_FIBERS_DETAIL_CONFIG_H
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#define BOOST_FIBERS_DETAIL_CONFIG_H
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#include <cstddef>
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#include <boost/config.hpp>
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#include <boost/predef.h>
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#include <boost/detail/workaround.hpp>
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#ifdef BOOST_FIBERS_DECL
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# undef BOOST_FIBERS_DECL
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#endif
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#if (defined(BOOST_ALL_DYN_LINK) || defined(BOOST_FIBERS_DYN_LINK) ) && ! defined(BOOST_FIBERS_STATIC_LINK)
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# if defined(BOOST_FIBERS_SOURCE)
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# define BOOST_FIBERS_DECL BOOST_SYMBOL_EXPORT
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# define BOOST_FIBERS_BUILD_DLL
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# else
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# define BOOST_FIBERS_DECL BOOST_SYMBOL_IMPORT
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# endif
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#endif
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#if ! defined(BOOST_FIBERS_DECL)
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# define BOOST_FIBERS_DECL
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#endif
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#if ! defined(BOOST_FIBERS_SOURCE) && ! defined(BOOST_ALL_NO_LIB) && ! defined(BOOST_FIBERS_NO_LIB)
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# define BOOST_LIB_NAME boost_fiber
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# if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_FIBERS_DYN_LINK)
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# define BOOST_DYN_LINK
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# endif
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# include <boost/config/auto_link.hpp>
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#endif
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#if BOOST_OS_LINUX || BOOST_OS_WINDOWS
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# define BOOST_FIBERS_HAS_FUTEX
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#endif
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#if (!defined(BOOST_FIBERS_HAS_FUTEX) && \
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(defined(BOOST_FIBERS_SPINLOCK_TTAS_FUTEX) || defined(BOOST_FIBERS_SPINLOCK_TTAS_ADAPTIVE_FUTEX)))
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# error "futex not supported on this platform"
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#endif
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#if !defined(BOOST_FIBERS_SPIN_MAX_COLLISIONS)
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# define BOOST_FIBERS_SPIN_MAX_COLLISIONS 16
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#endif
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#if !defined(BOOST_FIBERS_SPIN_MAX_TESTS)
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# define BOOST_FIBERS_SPIN_MAX_TESTS 100
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#endif
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// modern architectures have cachelines with 64byte length
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// ARM Cortex-A15 32/64byte, Cortex-A9 16/32/64bytes
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// MIPS 74K: 32byte, 4KEc: 16byte
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// ist shoudl be safe to use 64byte for all
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static constexpr std::size_t cache_alignment{ 64 };
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static constexpr std::size_t cacheline_length{ 64 };
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#endif // BOOST_FIBERS_DETAIL_CONFIG_H
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