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 | |
23 | namespace proxima { |
24 | namespace be { |
25 | |
26 | /* |
27 | * AutoCounter is a simple RAII type atomic counter |
28 | */ |
29 | struct 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 | |