text: /**
   *    Copyright (C) 2014 MongoDB Inc.
   *
   *    This program is free software: you can redistribute it and/or  modify
   *    it under the terms of the GNU Affero General Public License, version 3,
   *    as published by the Free Software Foundation.
   *
   *    This program is distributed in the hope that it will be useful,
   *    but WITHOUT ANY WARRANTY; without even the implied warranty of
   *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *    GNU Affero General Public License for more details.
   *
   *    You should have received a copy of the GNU Affero General Public License
   *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   *
   *    As a special exception, the copyright holders give permission to link the
   *    code of portions of this program with the OpenSSL library under certain
   *    conditions as described in each individual source file and distribute
   *    linked combinations including the program with the OpenSSL library. You
   *    must comply with the GNU Affero General Public License in all respects for
   *    all of the code used other than as permitted herein. If you modify file(s)
   *    with this exception, you may extend this exception to your version of the
   *    file(s), but you are not obligated to do so. If you do not wish to do so,
   *    delete this exception statement from your version. If you delete this
   *    exception statement from all source files in the program, then also delete
   *    it in the license file.
   */
  
  #include "mongo/platform/basic.h"
  
  #pragma once
  
  #include "mongo/base/disallow_copying.h"
  
  namespace shannon {
      class DB;
  }
  
  namespace mongo {
  
      class JournalListener;
  
      class RocksDurabilityManager {
          MONGO_DISALLOW_COPYING(RocksDurabilityManager);
  
      public:
          RocksDurabilityManager(shannon::DB* db, bool durable);
  
          void setJournalListener(JournalListener* jl);
  
          void waitUntilDurable(bool forceFlush);
  
      private:
          shannon::DB* _db;  // not owned
          bool _durable;
          // Notified when we commit to the journal.
          JournalListener* _journalListener;
          // Protects _journalListener.
          stdx::mutex _journalListenerMutex;
      };
  
  } // namespace mongo
  