classic_quit_sender.h

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/*
  Copyright (c) 2023, 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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  but not limited to OpenSSL) that is licensed under separate terms,
  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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  the program or referenced in the documentation.
 
  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 ROUTING_CLASSIC_QUIT_SENDER_INCLUDED
#define ROUTING_CLASSIC_QUIT_SENDER_INCLUDED
 
#include "processor.h"
 
class QuitSender : public Processor {
 public:
  using Processor::Processor;
 
  enum class Stage {
    Command,
    TlsShutdown,
    CloseSocket,
    Done,
  };
 
  stdx::expected<Result, std::error_code> process() override;
 
  void stage(Stage stage) { stage_ = stage; }
  Stage stage() const { return stage_; }
 
 private:
  stdx::expected<Result, std::error_code> command();
  stdx::expected<Result, std::error_code> tls_shutdown();
  stdx::expected<Result, std::error_code> close_socket();
 
  Stage stage_{Stage::Command};
};
 
#endif