text: /* UlordRig
   * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
   * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
   * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
   * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
   * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
   * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
   * Copyright 2016-2018 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
   * Copyright 2018      UlordRig    <https://github.com/UlordChain/ulordrig>
   *
   *   This program is free software: you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License as published by
   *   the Free Software Foundation, either version 3 of the License, or
   *   (at your option) any later version.
   *
   *   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 General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program. If not, see <http://www.gnu.org/licenses/>.
   */
  
  #ifndef __FAILOVERSTRATEGY_H__
  #define __FAILOVERSTRATEGY_H__
  
  
  #include <vector>
  
  
  #include "interfaces/IClientListener.h"
  #include "interfaces/IStrategy.h"
  
  
  class Client;
  class IStrategyListener;
  class Url;
  
  
  class FailoverStrategy : public IStrategy, public IClientListener
  {
  public:
      FailoverStrategy(const std::vector<Url*> &urls, int retryPause, int retries, IStrategyListener *listener, bool quiet = false);
      ~FailoverStrategy();
  
  public:
      inline bool isActive() const override  { return m_active >= 0; }
  
      int64_t submit(const JobResult &result) override;
      void connect() override;
      void resume() override;
      void stop() override;
      void tick(uint64_t now) override;
  
  protected:
      void onClose(Client *client, int failures) override;
      void onJobReceived(Client *client, const Job &job) override;
      void onLoginSuccess(Client *client) override;
      void onResultAccepted(Client *client, const SubmitResult &result, const char *error) override;
  
  private:
      void add(const Url *url);
  
      const bool m_quiet;
      const int m_retries;
      const int m_retryPause;
      int m_active;
      int m_index;
      IStrategyListener *m_listener;
      std::vector<Client*> m_pools;
  };
  
  #endif /* __FAILOVERSTRATEGY_H__ */
  