1 /*
2  * Copyright (c) 2021-2021 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_SCOPED_LOCK_H
17 #define HISTREAMER_FOUNDATION_OSAL_SCOPED_LOCK_H
18 
19 #include "foundation/osal/thread/mutex.h"
20 
21 namespace OHOS {
22 namespace Media {
23 namespace OSAL {
24 class ScopedLock {
25 public:
26     ScopedLock();
27 
28     explicit ScopedLock(Mutex& mutex);
29 
30     ScopedLock(ScopedLock&& other) noexcept;
31 
32     ScopedLock& operator=(ScopedLock&& other) noexcept;
33 
34     virtual ~ScopedLock();
35 
36     void Lock();
37 
38     bool TryLock();
39 
40     void Unlock();
41 
42 private:
43     Mutex* mutex_;
44     friend class ConditionVariable;
45 };
46 } // namespace OSAL
47 } // namespace Media
48 } // namespace OHOS
49 #endif // HISTREAMER_FOUNDATION_OSAL_SCOPED_LOCK_H
50