| // | |
| // 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 */ |