Mercurial > embed
view msgpack/include/msgpack/gcc_atomic.hpp @ 25:9298566b4708
msgpack: import 2.0.0
author | David Demelier <markand@malikania.fr> |
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date | Thu, 24 Nov 2016 17:35:14 +0100 |
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// // MessagePack for C++ old gcc workaround for atomic operation // // Copyright (C) 2008-2013 FURUHASHI Sadayuki and KONDO Takatoshi // // 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 MSGPACK_GCC_ATOMIC_HPP #define MSGPACK_GCC_ATOMIC_HPP #ifdef ENABLE_GCC_CXX_ATOMIC #if defined(__GNUC__) && ((__GNUC__*10 + __GNUC_MINOR__) < 41) #include "msgpack/gcc_atomic.h" #include <bits/atomicity.h> int _msgpack_sync_decr_and_fetch(volatile _msgpack_atomic_counter_t* ptr) { return __gnu_cxx::__exchange_and_add(ptr, -1) - 1; } int _msgpack_sync_incr_and_fetch(volatile _msgpack_atomic_counter_t* ptr) { return __gnu_cxx::__exchange_and_add(ptr, 1) + 1; } #endif // old gcc workaround #endif // ENABLE_GCC_CXX_ATOMIC #endif /* gcc_atomic.hpp */