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      1 /*
      2  *  Copyright (c) 2012 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 // General note: return values for the various pthread synchronization APIs
     12 // are explicitly ignored here. In Chromium, the same thing is done for release.
     13 // However, in debugging, failure in these APIs are logged. There is currently
     14 // no equivalent to DCHECK_EQ in WebRTC code so this is the best we can do here.
     15 // TODO(henrike): add logging when pthread synchronization APIs are failing.
     16 
     17 #include "webrtc/system_wrappers/source/critical_section_posix.h"
     18 
     19 namespace webrtc {
     20 
     21 CriticalSectionPosix::CriticalSectionPosix() {
     22   pthread_mutexattr_t attr;
     23   (void) pthread_mutexattr_init(&attr);
     24   (void) pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
     25   (void) pthread_mutex_init(&mutex_, &attr);
     26 }
     27 
     28 CriticalSectionPosix::~CriticalSectionPosix() {
     29   (void) pthread_mutex_destroy(&mutex_);
     30 }
     31 
     32 void
     33 CriticalSectionPosix::Enter() {
     34   (void) pthread_mutex_lock(&mutex_);
     35 }
     36 
     37 void
     38 CriticalSectionPosix::Leave() {
     39   (void) pthread_mutex_unlock(&mutex_);
     40 }
     41 
     42 }  // namespace webrtc
     43