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      1 /*
      2  *  Copyright (c) 2015 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_MODULES_AUDIO_CODING_CODECS_ISAC_LOCKED_BANDWIDTH_INFO_H_
     12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_LOCKED_BANDWIDTH_INFO_H_
     13 
     14 #include "webrtc/base/scoped_ptr.h"
     15 #include "webrtc/base/thread_annotations.h"
     16 #include "webrtc/modules/audio_coding/codecs/isac/bandwidth_info.h"
     17 #include "webrtc/system_wrappers/include/critical_section_wrapper.h"
     18 
     19 namespace webrtc {
     20 
     21 // An IsacBandwidthInfo that's safe to access from multiple threads because
     22 // it's protected by a mutex.
     23 class LockedIsacBandwidthInfo final {
     24  public:
     25   LockedIsacBandwidthInfo();
     26   ~LockedIsacBandwidthInfo();
     27 
     28   IsacBandwidthInfo Get() const {
     29     CriticalSectionScoped cs(lock_.get());
     30     return bwinfo_;
     31   }
     32 
     33   void Set(const IsacBandwidthInfo& bwinfo) {
     34     CriticalSectionScoped cs(lock_.get());
     35     bwinfo_ = bwinfo;
     36   }
     37 
     38  private:
     39   const rtc::scoped_ptr<CriticalSectionWrapper> lock_;
     40   IsacBandwidthInfo bwinfo_ GUARDED_BY(lock_);
     41 };
     42 
     43 }  // namespace webrtc
     44 
     45 #endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_LOCKED_BANDWIDTH_INFO_H_
     46