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      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