1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of 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,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef CHRE_PLATFORM_POWER_CONTROL_MANAGER_H
18 #define CHRE_PLATFORM_POWER_CONTROL_MANAGER_H
19 
20 #include <cstddef>
21 
22 #include "chre/target_platform/power_control_manager_base.h"
23 #include "chre/util/non_copyable.h"
24 
25 namespace chre {
26 
27 /**
28  * An abstraction for an entity that performs power-related controls for the
29  * underlying platform.
30  */
31 class PowerControlManager : public PowerControlManagerBase,
32                             public NonCopyable {
33  public:
34   /**
35    * Perform power-related control after a single process of the event loop.
36    *
37    * @param numPendingEvents The current size of the event queue.
38    */
39   void postEventLoopProcess(size_t numPendingEvents);
40 
41   /**
42    * @return true if the host is awake, false otherwise.
43    */
44   bool hostIsAwake();
45 };
46 
47 } // namespace chre
48 
49 #endif // CHRE_PLATFORM_POWER_CONTROL_MANAGER_H
50