1 /*
2  * Copyright (c) 2021-2024 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 HISTREAMER_FOUNDATION_OSAL_TASK_H
17 #define HISTREAMER_FOUNDATION_OSAL_TASK_H
18 
19 #include <functional>
20 #include <string>
21 
22 namespace OHOS {
23 namespace Media {
24 
25 enum class TaskPriority : int {
26     LOW,
27     NORMAL,
28     MIDDLE,
29     HIGH,
30     HIGHEST,
31 };
32 
33 enum class TaskType : int {
34     GLOBAL,
35     VIDEO,
36     AUDIO,
37     SUBTITLE,
38     SINGLETON,
39 };
40 
41 class TaskInner;
42 
43 class Task {
44 public:
45     explicit Task(const std::string& name, const std::string& groupId = "", TaskType type = TaskType::SINGLETON,
46         TaskPriority priority = TaskPriority::NORMAL, bool singleLoop = true);
47 
48     virtual ~Task();
49 
50     virtual void Start();
51 
52     virtual void Stop();
53 
54     virtual void StopAsync();
55 
56     virtual void Pause();
57 
58     virtual void PauseAsync();
59 
60     virtual void RegisterJob(const std::function<int64_t()>& job);
61 
62     virtual void SubmitJobOnce(const std::function<void()>& job, int64_t delayUs = 0, bool wait = false);
63 
64     virtual void SubmitJob(const std::function<void()>& job, int64_t delayUs = 0, bool wait = false);
65 
66     virtual bool IsTaskRunning();
67 
68     virtual void UpdateDelayTime(int64_t delayUs = 0);
69 
70     static void SleepInTask(unsigned ms);
71 
72     void SetEnableStateChangeLog(bool enable);
73 private:
74     std::shared_ptr<TaskInner> taskInner_;
75 };
76 } // namespace Media
77 } // namespace OHOS
78 #endif // HISTREAMER_FOUNDATION_OSAL_TASK_H
79 
80