Line data    Source code

       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             : #include "webrtc/system_wrappers/source/rw_lock_posix.h"
      12             : 
      13             : namespace webrtc {
      14             : 
      15           0 : RWLockPosix::RWLockPosix() : lock_() {
      16           0 : }
      17             : 
      18           0 : RWLockPosix::~RWLockPosix() {
      19           0 :   pthread_rwlock_destroy(&lock_);
      20           0 : }
      21             : 
      22           0 : RWLockPosix* RWLockPosix::Create() {
      23           0 :   RWLockPosix* ret_val = new RWLockPosix();
      24           0 :   if (!ret_val->Init()) {
      25           0 :     delete ret_val;
      26           0 :     return NULL;
      27             :   }
      28           0 :   return ret_val;
      29             : }
      30             : 
      31           0 : bool RWLockPosix::Init() {
      32           0 :   return pthread_rwlock_init(&lock_, 0) == 0;
      33             : }
      34             : 
      35           0 : void RWLockPosix::AcquireLockExclusive() {
      36           0 :   pthread_rwlock_wrlock(&lock_);
      37           0 : }
      38             : 
      39           0 : void RWLockPosix::ReleaseLockExclusive() {
      40           0 :   pthread_rwlock_unlock(&lock_);
      41           0 : }
      42             : 
      43           0 : void RWLockPosix::AcquireLockShared() {
      44           0 :   pthread_rwlock_rdlock(&lock_);
      45           0 : }
      46             : 
      47           0 : void RWLockPosix::ReleaseLockShared() {
      48           0 :   pthread_rwlock_unlock(&lock_);
      49           0 : }
      50             : 
      51             : }  // namespace webrtc