Dali 3D User Interface Engine
mutex.cpp
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1 /*
2  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
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 
18 // CLASS HEADER
20 
21 // EXTERNAL INCLUDES
22 #include <pthread.h>
23 
24 // INTERNAL INCLUDES
27 
28 namespace Dali
29 {
30 
32 {
33  pthread_mutex_t mutex;
34  bool locked;
35 };
36 
38 : mImpl( new MutexImpl )
39 {
40  if( pthread_mutex_init( &mImpl->mutex, NULL ) )
41  {
42  DALI_LOG_ERROR( "Unable to initialise Mutex" );
43  }
44  mImpl->locked = false;
45 }
46 
48 {
49  if( pthread_mutex_destroy( &mImpl->mutex ) )
50  {
51  DALI_LOG_ERROR( "Unable to destroy Mutex" );
52  }
53  // nothing else to do as there is no Lock/Unlock API
54  // ScopedLock destructor will always unlock the mutex
55  delete mImpl;
56 }
57 
59 {
60  return mImpl->locked;
61 }
62 
64 : mMutex( mutex )
65 {
67  mMutex.mImpl->locked = true;
68 }
69 
71 {
72  mMutex.mImpl->locked = false;
73  Internal::Mutex::Unlock( &mMutex.mImpl->mutex );
74 }
75 
76 } // namespace Dali
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