Add FailoverStrategy.

src/net/strategies/FailoverStrategy.h

@@ -0,0 +1,66 @@
+/* XMRig
+ * 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 2016-2017 XMRig       <support@xmrig.com>
+ *
+ *
+ *   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, const char *agent, IStrategyListener *listener);
+
+public:
+    inline bool isActive() const override  { return m_active >= 0; }
+
+    void connect() override;
+    void resume() override;
+    void submit(const JobResult &result) override;
+
+protected:
+    void onClose(Client *client, int failures) override;
+    void onJobReceived(Client *client, const Job &job) override;
+    void onLoginSuccess(Client *client) override;
+
+private:
+    void add(const Url *url, const char *agent);
+
+    int m_active;
+    int m_index;
+    IStrategyListener *m_listener;
+    std::vector<Client*> m_pools;
+};
+
+#endif /* __FAILOVERSTRATEGY_H__ */