1 /*
2  * Copyright (c) 2021 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 OHOS_DISTRIBUTED_HARDWARE_OFFLINE_TASK_H
17 #define OHOS_DISTRIBUTED_HARDWARE_OFFLINE_TASK_H
18 
19 #include <condition_variable>
20 
21 #include "task.h"
22 
23 namespace OHOS {
24 namespace DistributedHardware {
25 class OffLineTask : public Task {
26 public:
27     OffLineTask() = delete;
28     OffLineTask(const std::string &networkId, const std::string &uuid, const std::string &udid,
29         const std::string &dhId, const DHType dhType);
30     virtual ~OffLineTask();
31     virtual void DoTask();
32 
33     virtual void NotifyFatherFinish(std::string taskId);
34     virtual void AddChildrenTask(std::shared_ptr<Task> childrenTask);
35 
36 private:
37     /* OffLineTask should wait until all Disable task finish, we run it in a independent thread */
38     void DoTaskInner();
39     /* create disable tasks for off line device */
40     void CreateDisableTask();
41     /* wait until all disable tasks finish or timeout */
42     void WaitDisableTaskFinish();
43     /* clear off line device info */
44     void ClearOffLineInfo();
45     /* create meta disable tasks for off line device */
46     void CreateMetaDisableTask();
47 
48 private:
49     /* condition for children task finish */
50     std::condition_variable finishCondVar_;
51     std::mutex unFinishTaskMtx_;
52     std::set<std::string> unFinishChildrenTasks_;
53 };
54 } // namespace DistributedHardware
55 } // namespace OHOS
56 #endif
57