ceph/src/boost/boost/asio/ssl/detail/shutdown_op.hpp

   1 //
   2 // ssl/detail/shutdown_op.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #ifndef BOOST_ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
  12 #define BOOST_ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/config.hpp>
  19
  20 #include <boost/asio/ssl/detail/engine.hpp>
  21
  22 #include <boost/asio/detail/push_options.hpp>
  23
  24 namespace boost {
  25 namespace asio {
  26 namespace ssl {
  27 namespace detail {
  28
  29 class shutdown_op
  30 {
  31 public:
  32   static BOOST_ASIO_CONSTEXPR const char* tracking_name()
  33   {
  34     return "ssl::stream<>::async_shutdown";
  35   }
  36
  37   engine::want operator()(engine& eng,
  38       boost::system::error_code& ec,
  39       std::size_t& bytes_transferred) const
  40   {
  41     bytes_transferred = 0;
  42     return eng.shutdown(ec);
  43   }
  44
  45   template <typename Handler>
  46   void call_handler(Handler& handler,
  47       const boost::system::error_code& ec,
  48       const std::size_t&) const
  49   {
  50     if (ec == boost::asio::error::eof)
  51     {
  52       // The engine only generates an eof when the shutdown notification has
  53       // been received from the peer. This indicates that the shutdown has
  54       // completed successfully, and thus need not be passed on to the handler.
  55       BOOST_ASIO_MOVE_OR_LVALUE(Handler)(handler)(boost::system::error_code());
  56     }
  57     else
  58     {
  59       BOOST_ASIO_MOVE_OR_LVALUE(Handler)(handler)(ec);
  60     }
  61   }
  62 };
  63
  64 } // namespace detail
  65 } // namespace ssl
  66 } // namespace asio
  67 } // namespace boost
  68
  69 #include <boost/asio/detail/pop_options.hpp>
  70
  71 #endif // BOOST_ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP