text: // /db/repl/rs.h
  
  /**
  *    Copyright (C) 2008 10gen 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.
  */
  
  #pragma once
  
  #include "mongo/bson/oid.h"
  #include "mongo/bson/optime.h"
  #include "mongo/db/commands.h"
  #include "mongo/db/index/index_descriptor.h"
  #include "mongo/db/repl/consensus.h"
  #include "mongo/db/repl/manager.h"
  #include "mongo/db/repl/oplogreader.h"
  #include "mongo/db/repl/repl_set.h"
  #include "mongo/db/repl/repl_set_impl.h"
  #include "mongo/db/repl/rs_base.h"
  #include "mongo/db/repl/rs_config.h"
  #include "mongo/db/repl/rs_exception.h"
  #include "mongo/db/repl/rs_sync.h"
  #include "mongo/db/repl/server.h"
  #include "mongo/db/repl/state_box.h"
  #include "mongo/db/repl/sync_source_feedback.h"
  #include "mongo/util/concurrency/thread_pool.h"
  #include "mongo/util/concurrency/value.h"
  #include "mongo/util/net/hostandport.h"
  
  /**
   * Order of Events
   *
   * On startup, if the --replSet option is present, startReplSets is called.
   * startReplSets forks off a new thread for replica set activities.  It creates
   * the global theReplSet variable and calls go() on it.
   *
   * theReplSet's constructor changes the replica set's state to RS_STARTUP,
   * starts the replica set manager, and loads the config (if the replica set
   * has been initialized).
   */
  
  namespace mongo {
  namespace repl {
  
      extern bool replSet; // true if using repl sets
      extern class ReplSet *theReplSet; // null until initialized
  
      class ReplSetSeedList;
  
      // Main entry point for replica sets
      void startReplSets(ReplSetSeedList *replSetSeedList);
  
      bool isCurrentlyAReplSetPrimary();
  
      /**
       * does local authentication
       * directly authorizes against AuthenticationInfo
       */
      void replLocalAuth();
  
  } // namespace repl
  } // namespace mongo
  