1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * 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, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */
16 
17 
18 #ifndef CTSAUDIO_TASKSEQUENTIAL_H
19 #define CTSAUDIO_TASKSEQUENTIAL_H
20 
21 #include <utils/String8.h>
22 #include <list>
23 #include "TaskGeneric.h"
24 
25 class TaskAsync;
26 
27 class TaskSequential: public TaskGeneric {
28 public:
29     TaskSequential();
30     virtual ~TaskSequential();
31     virtual TaskGeneric::ExecutionResult run();
32     virtual bool parseAttribute(const android::String8& name, const android::String8& value);
33     /**
34      * Queue async task for asynchronous execution (= call complete later)
35      * If the task is already queued, it will not be queued again ,but will just return true.
36      */
37     bool queueAsyncTask(TaskAsync* task);
38 
39 private:
40     /**
41      * Run all async tasks queued (= call complete) and dequeue them.
42      * Execution will be continued even for error, and the 1st error result will be returned.
43      */
44     TaskGeneric::ExecutionResult runAsyncTasksQueued();
45 
46 private:
47     int mRepeatCount;
48     android::String8 mIndexName;
49     int mRepeatIndex;
50     std::list<TaskAsync*> mAsyncTasks;
51 };
52 
53 
54 #endif // CTSAUDIO_TASKSEQUENTIAL_H
55