1 /*
2  * Copyright 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 J_WAKELOCK_H_
18 #define J_WAKELOCK_H_
19 
20 #include <media/stagefright/foundation/ABase.h>
21 #include <mediaplayer2/JObjectHolder.h>
22 #include <utils/RefBase.h>
23 
24 namespace android {
25 
26 class JWakeLock : public RefBase {
27 
28 public:
29     JWakeLock(const sp<JObjectHolder> &context);
30 
31     // NOTE: acquire and release are not thread safe
32 
33     // returns true if wakelock was acquired
34     bool acquire();
35     void release(bool force = false);
36 
37     virtual ~JWakeLock();
38 
39 private:
40     uint32_t                mWakeLockCount;
41     sp<JObjectHolder>       mWakeLock;
42     const sp<JObjectHolder> mContext;
43 
44     void clearJavaWakeLock();
45 
46     DISALLOW_EVIL_CONSTRUCTORS(JWakeLock);
47 };
48 
49 }  // namespace android
50 
51 #endif  // J_WAKELOCK_H_
52