text: /**
  *    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 <string>
  
  namespace mongo {
  
      class DBClientBase;
      class ShardConnection;
  
  
      class VersionManager {
      public:
          VersionManager() { }
  
          bool isVersionableCB(DBClientBase*);
          bool forceRemoteCheckShardVersionCB(const std::string&);
          bool checkShardVersionCB(DBClientBase*, const std::string&, bool, int);
          bool checkShardVersionCB(ShardConnection*, bool, int);
          void resetShardVersionCB(DBClientBase*);
  
      };
  
      extern VersionManager versionManager;
  
  } // namespace mongo
  