1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef JS_CONCURRENT_MODULE_TASKPOOL_MESSAGE_QUEUE_H
17 #define JS_CONCURRENT_MODULE_TASKPOOL_MESSAGE_QUEUE_H
18 
19 #include <mutex>
20 #include <queue>
21 
22 namespace Commonlibrary::Concurrent::TaskPoolModule {
23 template <typename MessageDataType>
24 class MessageQueue final {
25 public:
EnQueue(MessageDataType data)26     void EnQueue(MessageDataType data)
27     {
28         std::lock_guard<std::mutex> lock(queueLock_);
29         queue_.push(data);
30     }
31 
DeQueue()32     MessageDataType DeQueue()
33     {
34         std::lock_guard<std::mutex> lock(queueLock_);
35         if (queue_.empty()) {
36             return nullptr;
37         }
38 
39         auto data = queue_.front();
40         queue_.pop();
41         return data;
42     }
43 
IsEmpty()44     bool IsEmpty()
45     {
46         std::lock_guard<std::mutex> lock(queueLock_);
47         return queue_.empty();
48     }
49 
50 private:
51     std::mutex queueLock_;
52     std::queue<MessageDataType> queue_;
53 };
54 }  // namespace Commonlibrary::Concurrent::TaskPoolModule
55 #endif // JS_CONCURRENT_MODULE_TASKPOOL_MESSAGE_QUEUE_H