1 // 2 // detail/base_from_completion_cond.hpp 3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4 // 5 // Copyright (c) 2003-2015 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_DETAIL_BASE_FROM_COMPLETION_COND_HPP 12 #define BOOST_ASIO_DETAIL_BASE_FROM_COMPLETION_COND_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 #include <boost/asio/completion_condition.hpp> 20 21 #include <boost/asio/detail/push_options.hpp> 22 23 namespace boost { 24 namespace asio { 25 namespace detail { 26 27 template <typename CompletionCondition> 28 class base_from_completion_cond 29 { 30 protected: base_from_completion_cond(CompletionCondition completion_condition)31 explicit base_from_completion_cond(CompletionCondition completion_condition) 32 : completion_condition_(completion_condition) 33 { 34 } 35 check_for_completion(const boost::system::error_code & ec,std::size_t total_transferred)36 std::size_t check_for_completion( 37 const boost::system::error_code& ec, 38 std::size_t total_transferred) 39 { 40 return detail::adapt_completion_condition_result( 41 completion_condition_(ec, total_transferred)); 42 } 43 44 private: 45 CompletionCondition completion_condition_; 46 }; 47 48 template <> 49 class base_from_completion_cond<transfer_all_t> 50 { 51 protected: base_from_completion_cond(transfer_all_t)52 explicit base_from_completion_cond(transfer_all_t) 53 { 54 } 55 check_for_completion(const boost::system::error_code & ec,std::size_t total_transferred)56 static std::size_t check_for_completion( 57 const boost::system::error_code& ec, 58 std::size_t total_transferred) 59 { 60 return transfer_all_t()(ec, total_transferred); 61 } 62 }; 63 64 } // namespace detail 65 } // namespace asio 66 } // namespace boost 67 68 #include <boost/asio/detail/pop_options.hpp> 69 70 #endif // BOOST_ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP 71