1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
2 | // Use of this source code is governed by a BSD-style license that can be |
3 | // found in the LICENSE file. |
4 | |
5 | #ifndef FLUTTER_FML_SYNCHRONIZATION_ATOMIC_OBJECT_H_ |
6 | #define FLUTTER_FML_SYNCHRONIZATION_ATOMIC_OBJECT_H_ |
7 | |
8 | #include <mutex> |
9 | |
10 | namespace fml { |
11 | |
12 | // A wrapper for an object instance that can be read or written atomically. |
13 | template <typename T> |
14 | class AtomicObject { |
15 | public: |
16 | AtomicObject() = default; |
17 | AtomicObject(T object) : object_(object) {} |
18 | |
19 | T Load() const { |
20 | std::scoped_lock lock(mutex_); |
21 | return object_; |
22 | } |
23 | |
24 | void Store(const T& object) { |
25 | std::scoped_lock lock(mutex_); |
26 | object_ = object; |
27 | } |
28 | |
29 | private: |
30 | mutable std::mutex mutex_; |
31 | T object_; |
32 | }; |
33 | |
34 | } // namespace fml |
35 | |
36 | #endif // FLUTTER_FML_SYNCHRONIZATION_ATOMIC_OBJECT_H_ |
37 | |