io_backend.h

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/*
  Copyright (c) 2020, 2025, Oracle and/or its affiliates.
 
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License, version 2.0,
  as published by the Free Software Foundation.
 
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  as designated in a particular file or component or in included license
  documentation.  The authors of MySQL hereby grant you an additional
  permission to link the program and your derivative works with the
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  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
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*/
 
#ifndef ROUTER_IO_BACKEND_INCLUDED
#define ROUTER_IO_BACKEND_INCLUDED
 
#include <memory>  // unique_ptr
#include <set>
#include <string>
 
#include "mysql/harness/net_ts/impl/io_service_base.h"
#include "mysqlrouter/io_component_export.h"
 
class IO_COMPONENT_EXPORT IoBackend {
 public:
  /**
   * preferred backend for this platform.
   */
  static std::string preferred();
 
  /**
   * supported backends for this platform.
   */
  static std::set<std::string> supported();
 
  /**
   * create a backend from name.
   *
   * @param name name of the backend.
   * @returns backend
   * @retval nullptr if name doesn't refer to supported backends.
   */
  static std::unique_ptr<net::IoServiceBase> backend(const std::string &name);
};
 
#endif