| // |
| // 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 */ |
