mirror of
https://github.com/msgpack/msgpack-c
synced 2026-06-08 16:11:40 +00:00
Takatoshi Kondo
36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
//
|
|
// MessagePack for C++ atomic operations
|
|
//
|
|
// Copyright (C) 2008-2013 FURUHASHI Sadayuki
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
#if defined(__GNUC__) && ((__GNUC__*10 + __GNUC_MINOR__) < 41)
|
|
|
|
#include "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
|