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Diffstat (limited to '3rdParty/Boost/boost/smart_ptr/detail/atomic_count_sync.hpp')
-rw-r--r-- | 3rdParty/Boost/boost/smart_ptr/detail/atomic_count_sync.hpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/smart_ptr/detail/atomic_count_sync.hpp b/3rdParty/Boost/boost/smart_ptr/detail/atomic_count_sync.hpp new file mode 100644 index 0000000..b6359b5 --- /dev/null +++ b/3rdParty/Boost/boost/smart_ptr/detail/atomic_count_sync.hpp @@ -0,0 +1,61 @@ +#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED +#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED + +// +// boost/detail/atomic_count_sync.hpp +// +// atomic_count for g++ 4.1+ +// +// http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Atomic-Builtins.html +// +// Copyright 2007 Peter Dimov +// +// 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) +// + +#if defined( __ia64__ ) && defined( __INTEL_COMPILER ) +# include <ia64intrin.h> +#endif + +namespace boost +{ + +namespace detail +{ + +class atomic_count +{ +public: + + explicit atomic_count( long v ) : value_( v ) {} + + long operator++() + { + return __sync_add_and_fetch( &value_, 1 ); + } + + long operator--() + { + return __sync_add_and_fetch( &value_, -1 ); + } + + operator long() const + { + return __sync_fetch_and_add( &value_, 0 ); + } + +private: + + atomic_count(atomic_count const &); + atomic_count & operator=(atomic_count const &); + + mutable long value_; +}; + +} // namespace detail + +} // namespace boost + +#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED |