2 * Copyright (c) 2019 Samsung Electronics Co., Ltd All Rights Reserved
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
20 namespace transaction_guard {
22 /* Helping class for automatically releasing acquired resources when transaction
23 * during initialization failed at some point.
25 template <typename FunRelease>
30 explicit Guard(FunRelease f) : fun(f), active(true) {}
32 Guard(const Guard &) = delete;
33 Guard &operator=(const Guard &) = delete;
44 Guard(Guard &&g) : fun(std::move(g.fun)), active(g.active) {
49 template <typename FunRelease>
50 Guard<FunRelease> makeGuard(FunRelease f) {
51 return Guard<FunRelease>(std::move(f));
54 } // namespace transaction_guard