shutdown_op.hpp 1.7 KB

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  1. //
  2. // ssl/detail/shutdown_op.hpp
  3. // ~~~~~~~~~~~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2021 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. #ifndef BOOST_ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
  11. #define BOOST_ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include <boost/asio/detail/config.hpp>
  16. #include <boost/asio/ssl/detail/engine.hpp>
  17. #include <boost/asio/detail/push_options.hpp>
  18. namespace boost {
  19. namespace asio {
  20. namespace ssl {
  21. namespace detail {
  22. class shutdown_op
  23. {
  24. public:
  25. static BOOST_ASIO_CONSTEXPR const char* tracking_name()
  26. {
  27. return "ssl::stream<>::async_shutdown";
  28. }
  29. engine::want operator()(engine& eng,
  30. boost::system::error_code& ec,
  31. std::size_t& bytes_transferred) const
  32. {
  33. bytes_transferred = 0;
  34. return eng.shutdown(ec);
  35. }
  36. template <typename Handler>
  37. void call_handler(Handler& handler,
  38. const boost::system::error_code& ec,
  39. const std::size_t&) const
  40. {
  41. if (ec == boost::asio::error::eof)
  42. {
  43. // The engine only generates an eof when the shutdown notification has
  44. // been received from the peer. This indicates that the shutdown has
  45. // completed successfully, and thus need not be passed on to the handler.
  46. handler(boost::system::error_code());
  47. }
  48. else
  49. {
  50. handler(ec);
  51. }
  52. }
  53. };
  54. } // namespace detail
  55. } // namespace ssl
  56. } // namespace asio
  57. } // namespace boost
  58. #include <boost/asio/detail/pop_options.hpp>
  59. #endif // BOOST_ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP