ssl/detail/read_op.hpp

0001 //
0002 // ssl/detail/read_op.hpp
0003 // ~~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_SSL_DETAIL_READ_OP_HPP
0012 #define BOOST_ASIO_SSL_DETAIL_READ_OP_HPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019
0020 #include <boost/asio/detail/buffer_sequence_adapter.hpp>
0021 #include <boost/asio/ssl/detail/engine.hpp>
0022
0023 #include <boost/asio/detail/push_options.hpp>
0024
0025 namespace boost {
0026 namespace asio {
0027 namespace ssl {
0028 namespace detail {
0029
0030 template <typename MutableBufferSequence>
0031 class read_op
0032 {
0033 public:
0034   static constexpr const char* tracking_name()
0035   {
0036     return "ssl::stream<>::async_read_some";
0037   }
0038
0039   read_op(const MutableBufferSequence& buffers)
0040     : buffers_(buffers)
0041   {
0042   }
0043
0044   engine::want operator()(engine& eng,
0045       boost::system::error_code& ec,
0046       std::size_t& bytes_transferred) const
0047   {
0048     boost::asio::mutable_buffer buffer =
0049       boost::asio::detail::buffer_sequence_adapter<boost::asio::mutable_buffer,
0050         MutableBufferSequence>::first(buffers_);
0051
0052     return eng.read(buffer, ec, bytes_transferred);
0053   }
0054
0055   template <typename Handler>
0056   void call_handler(Handler& handler,
0057       const boost::system::error_code& ec,
0058       const std::size_t& bytes_transferred) const
0059   {
0060     static_cast<Handler&&>(handler)(ec, bytes_transferred);
0061   }
0062
0063 private:
0064   MutableBufferSequence buffers_;
0065 };
0066
0067 } // namespace detail
0068 } // namespace ssl
0069 } // namespace asio
0070 } // namespace boost
0071
0072 #include <boost/asio/detail/pop_options.hpp>
0073
0074 #endif // BOOST_ASIO_SSL_DETAIL_READ_OP_HPP