1/*
2 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_GENERIC_H_
12#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_GENERIC_H_
13
14#include "rw_lock_wrapper.h"
15
16namespace webrtc {
17class CriticalSectionWrapper;
18class ConditionVariableWrapper;
19
20class RWLockWrapperGeneric : public RWLockWrapper
21{
22public:
23    RWLockWrapperGeneric();
24    virtual ~RWLockWrapperGeneric();
25
26    virtual void AcquireLockExclusive();
27    virtual void ReleaseLockExclusive();
28
29    virtual void AcquireLockShared();
30    virtual void ReleaseLockShared();
31
32protected:
33    virtual int Init();
34
35private:
36    CriticalSectionWrapper*   _critSectPtr;
37    ConditionVariableWrapper* _readCondPtr;
38    ConditionVariableWrapper* _writeCondPtr;
39
40    int  _readersActive;
41    bool _writerActive;
42    int  _readersWaiting;
43    int  _writersWaiting;
44};
45} // namespace webrtc
46#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_GENERIC_H_
47