1/**
2 * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15
16 * \author Haichao.chc
17 * \date March 2021
18 * \brief RAII type atomic counter
19 */
20
21#include <atomic>
22
23namespace proxima {
24namespace be {
25
26/*
27 * AutoCounter is a simple RAII type atomic counter
28 */
29struct AutoCounter {
30 AutoCounter(std::atomic<uint64_t> &ctr) : counter_(ctr) {
31 counter_++;
32 }
33
34 ~AutoCounter() {
35 counter_--;
36 }
37
38 std::atomic<uint64_t> &counter_;
39};
40
41
42} // namespace be
43} // end namespace proxima
44