tizen 2.4 release
[framework/web/wrt-commons.git] / modules / core / include / dpl / read_write_mutex.h
1 /*
2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
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  * @file        read_write_mutex.h
18  * @author      Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
19  * @version     1.0
20  * @brief       This file is the implementation file of read write mutex
21  */
22 #ifndef DPL_READ_WRITE_MUTEX_H
23 #define DPL_READ_WRITE_MUTEX_H
24
25 #include <dpl/noncopyable.h>
26 #include <dpl/exception.h>
27 #include <pthread.h>
28
29 namespace DPL {
30 class ReadWriteMutex :
31     private Noncopyable
32 {
33   public:
34     class ScopedReadLock :
35         private Noncopyable
36     {
37       private:
38         ReadWriteMutex *m_mutex;
39
40       public:
41         ScopedReadLock(ReadWriteMutex *mutex);
42         virtual ~ScopedReadLock();
43     };
44
45     class ScopedWriteLock :
46         private Noncopyable
47     {
48       private:
49         ReadWriteMutex *m_mutex;
50
51       public:
52         ScopedWriteLock(ReadWriteMutex *mutex);
53         virtual ~ScopedWriteLock();
54     };
55
56     class Exception
57     {
58       public:
59         DECLARE_EXCEPTION_TYPE(DPL::Exception, Base)
60         DECLARE_EXCEPTION_TYPE(Base, CreateFailed)
61         DECLARE_EXCEPTION_TYPE(Base, DestroyFailed)
62         DECLARE_EXCEPTION_TYPE(Base, ReadLockFailed)
63         DECLARE_EXCEPTION_TYPE(Base, WriteLockFailed)
64         DECLARE_EXCEPTION_TYPE(Base, UnlockFailed)
65     };
66
67   private:
68     mutable pthread_rwlock_t m_rwlock;
69
70     void ReadLock() const;
71     void WriteLock() const;
72     void Unlock() const;
73
74   public:
75     explicit ReadWriteMutex();
76     virtual ~ReadWriteMutex();
77 };
78 } // namespace DPL
79
80 #endif // DPL_READ_WRITE_MUTEX_H