Galera4

sql/wsrep_server_state.h

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+/* Copyright 2018 Codership Oy <info@codership.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; version 2 of the License.
+
+   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, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+#ifndef WSREP_SERVER_STATE_H
+#define WSREP_SERVER_STATE_H
+
+/* wsrep-lib */
+#include "wsrep/server_state.hpp"
+#include "wsrep/provider.hpp"
+
+/* implementation */
+#include "wsrep_server_service.h"
+#include "wsrep_mutex.h"
+#include "wsrep_condition_variable.h"
+
+class Wsrep_server_state : public wsrep::server_state
+{
+public:
+  static void init_once(const std::string& name,
+                        const std::string& incoming_address,
+                        const std::string& address,
+                        const std::string& working_dir,
+                        const wsrep::gtid& initial_position,
+                        int max_protocol_version);
+  static void destroy();
+  static Wsrep_server_state& instance()
+  {
+    return *m_instance;
+  }
+
+  static wsrep::provider& get_provider()
+  {
+    return instance().provider();
+  }
+
+  static bool has_capability(int capability)
+  {
+    return (get_provider().capabilities() & capability);
+  }
+private:
+  Wsrep_server_state(const std::string& name,
+                     const std::string& incoming_address,
+                     const std::string& address,
+                     const std::string& working_dir,
+                     const wsrep::gtid& initial_position,
+                     int max_protocol_version);
+  Wsrep_mutex m_mutex;
+  Wsrep_condition_variable m_cond;
+  Wsrep_server_service m_service;
+
+  static Wsrep_server_state* m_instance;
+};
+
+#endif // WSREP_SERVER_STATE_H