| // |
| // Copyright (C) 2015 Google, Inc. |
| // |
| // 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. |
| // |
| |
| #include <mutex> |
| #include <string> |
| |
| #include <base/macros.h> |
| |
| namespace util { |
| |
| // A simple atomic container class for std::string. |
| class AtomicString final { |
| public: |
| explicit AtomicString(const std::string& str); |
| ~AtomicString() = default; |
| |
| std::string Get() const; |
| void Set(const std::string& str); |
| |
| private: |
| std::mutex lock_; |
| std::string str_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AtomicString); |
| }; |
| |
| } // namespace util |