1//
2//  Copyright (C) 2015 Google, Inc.
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
17#pragma once
18
19#include <mutex>
20#include <string>
21
22#include <base/macros.h>
23
24namespace util {
25
26// A simple atomic container class for std::string.
27class AtomicString final {
28 public:
29  explicit AtomicString(const std::string& str);
30  ~AtomicString() = default;
31
32  std::string Get() const;
33  void Set(const std::string& str);
34
35 private:
36  std::mutex lock_;
37  std::string str_;
38
39  DISALLOW_COPY_AND_ASSIGN(AtomicString);
40};
41
42}  // namespace util
43