| 1 | /////////////////////////////////////////////////////////////////////////////// |
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| 2 | // Copyright 2017 John Maddock |
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| 3 | // Distributed under the Boost |
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| 4 | // Software License, Version 1.0. (See accompanying file |
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| 5 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 6 | |
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| 7 | #ifndef BOOST_MATH_ATOMIC_DETAIL_HPP |
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| 8 | #define BOOST_MATH_ATOMIC_DETAIL_HPP |
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| 9 | |
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| 10 | #include <boost/config.hpp> |
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| 11 | #include <boost/math/tools/cxx03_warn.hpp> |
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| 12 | |
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| 13 | #ifdef BOOST_HAS_THREADS |
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| 14 | |
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| 15 | #ifndef BOOST_NO_CXX11_HDR_ATOMIC |
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| 16 | # include <atomic> |
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| 17 | # define BOOST_MATH_ATOMIC_NS std |
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| 18 | namespace boost { |
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| 19 | namespace math { |
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| 20 | namespace detail { |
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| 21 | #if ATOMIC_INT_LOCK_FREE == 2 |
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| 22 | typedef std::atomic<int> atomic_counter_type; |
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| 23 | typedef std::atomic<unsigned> atomic_unsigned_type; |
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| 24 | typedef int atomic_integer_type; |
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| 25 | typedef unsigned atomic_unsigned_integer_type; |
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| 26 | #elif ATOMIC_SHORT_LOCK_FREE == 2 |
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| 27 | typedef std::atomic<short> atomic_counter_type; |
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| 28 | typedef std::atomic<unsigned short> atomic_unsigned_type; |
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| 29 | typedef short atomic_integer_type; |
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| 30 | typedef unsigned short atomic_unsigned_type; |
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| 31 | #elif ATOMIC_LONG_LOCK_FREE == 2 |
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| 32 | typedef std::atomic<long> atomic_unsigned_integer_type; |
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| 33 | typedef std::atomic<unsigned long> atomic_unsigned_type; |
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| 34 | typedef unsigned long atomic_unsigned_type; |
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| 35 | typedef long atomic_integer_type; |
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| 36 | #elif ATOMIC_LLONG_LOCK_FREE == 2 |
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| 37 | typedef std::atomic<long long> atomic_unsigned_integer_type; |
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| 38 | typedef std::atomic<unsigned long long> atomic_unsigned_type; |
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| 39 | typedef long long atomic_integer_type; |
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| 40 | typedef unsigned long long atomic_unsigned_integer_type; |
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| 41 | #else |
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| 42 | # define BOOST_MATH_NO_ATOMIC_INT |
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| 43 | #endif |
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| 44 | } |
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| 45 | }} |
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| 46 | #else // BOOST_NO_CXX11_HDR_ATOMIC |
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| 47 | // |
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| 48 | // We need Boost.Atomic, but on any platform that supports auto-linking we do |
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| 49 | // not need to link against a separate library: |
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| 50 | // |
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| 51 | #define BOOST_ATOMIC_NO_LIB |
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| 52 | #include <boost/atomic.hpp> |
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| 53 | # define BOOST_MATH_ATOMIC_NS boost |
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| 54 | |
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| 55 | namespace boost{ namespace math{ namespace detail{ |
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| 56 | |
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| 57 | // |
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| 58 | // We need a type to use as an atomic counter: |
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| 59 | // |
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| 60 | #if BOOST_ATOMIC_INT_LOCK_FREE == 2 |
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| 61 | typedef boost::atomic<int> atomic_counter_type; |
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| 62 | typedef boost::atomic<unsigned> atomic_unsigned_type; |
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| 63 | typedef int atomic_integer_type; |
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| 64 | typedef unsigned atomic_unsigned_integer_type; |
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| 65 | #elif BOOST_ATOMIC_SHORT_LOCK_FREE == 2 |
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| 66 | typedef boost::atomic<short> atomic_counter_type; |
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| 67 | typedef boost::atomic<unsigned short> atomic_unsigned_type; |
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| 68 | typedef short atomic_integer_type; |
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| 69 | typedef unsigned short atomic_unsigned_integer_type; |
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| 70 | #elif BOOST_ATOMIC_LONG_LOCK_FREE == 2 |
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| 71 | typedef boost::atomic<long> atomic_counter_type; |
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| 72 | typedef boost::atomic<unsigned long> atomic_unsigned_type; |
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| 73 | typedef long atomic_integer_type; |
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| 74 | typedef unsigned long atomic_unsigned_integer_type; |
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| 75 | #elif BOOST_ATOMIC_LLONG_LOCK_FREE == 2 |
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| 76 | typedef boost::atomic<long long> atomic_counter_type; |
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| 77 | typedef boost::atomic<unsigned long long> atomic_unsigned_type; |
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| 78 | typedef long long atomic_integer_type; |
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| 79 | typedef unsigned long long atomic_unsigned_integer_type; |
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| 80 | #else |
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| 81 | # define BOOST_MATH_NO_ATOMIC_INT |
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| 82 | #endif |
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| 83 | |
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| 84 | }}} // namespaces |
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| 85 | |
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| 86 | #endif // BOOST_NO_CXX11_HDR_ATOMIC |
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| 87 | |
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| 88 | #else // BOOST_HAS_THREADS |
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| 89 | |
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| 90 | # define BOOST_MATH_NO_ATOMIC_INT |
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| 91 | |
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| 92 | #endif // BOOST_HAS_THREADS |
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| 93 | |
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| 94 | #endif // BOOST_MATH_ATOMIC_DETAIL_HPP |
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| 95 | |
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