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      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_POSIX_H_
     12 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_POSIX_H_
     13 
     14 #include "webrtc/system_wrappers/include/rw_lock_wrapper.h"
     15 #include "webrtc/typedefs.h"
     16 
     17 #include <pthread.h>
     18 
     19 namespace webrtc {
     20 
     21 class RWLockPosix : public RWLockWrapper {
     22  public:
     23   static RWLockPosix* Create();
     24   ~RWLockPosix() override;
     25 
     26   void AcquireLockExclusive() override;
     27   void ReleaseLockExclusive() override;
     28 
     29   void AcquireLockShared() override;
     30   void ReleaseLockShared() override;
     31 
     32  private:
     33   RWLockPosix();
     34   bool Init();
     35 
     36   pthread_rwlock_t lock_;
     37 };
     38 
     39 }  // namespace webrtc
     40 
     41 #endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_POSIX_H_
     42