// // impl/connect.hpp // ~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #ifndef ASIO_IMPL_CONNECT_HPP #define ASIO_IMPL_CONNECT_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include <algorithm> #include "asio/associated_allocator.hpp" #include "asio/associated_executor.hpp" #include "asio/detail/bind_handler.hpp" #include "asio/detail/handler_alloc_helpers.hpp" #include "asio/detail/handler_cont_helpers.hpp" #include "asio/detail/handler_invoke_helpers.hpp" #include "asio/detail/handler_type_requirements.hpp" #include "asio/detail/throw_error.hpp" #include "asio/error.hpp" #include "asio/post.hpp" #include "asio/detail/push_options.hpp" namespace asio { namespace detail { struct default_connect_condition { template <typename Endpoint> bool operator()(const asio::error_code&, const Endpoint&) { return true; } }; template <typename Protocol, typename Iterator> inline typename Protocol::endpoint deref_connect_result( Iterator iter, asio::error_code& ec) { return ec ? typename Protocol::endpoint() : *iter; } template <typename T, typename Iterator> struct legacy_connect_condition_helper : T { typedef char (*fallback_func_type)(...); operator fallback_func_type() const; }; template <typename R, typename Arg1, typename Arg2, typename Iterator> struct legacy_connect_condition_helper<R (*)(Arg1, Arg2), Iterator> { R operator()(Arg1, Arg2) const; char operator()(...) const; }; template <typename T, typename Iterator> struct is_legacy_connect_condition { static char asio_connect_condition_check(char); static char (&asio_connect_condition_check(Iterator))[2]; static const bool value = sizeof(asio_connect_condition_check( (*static_cast<legacy_connect_condition_helper<T, Iterator>*>(0))( *static_cast<const asio::error_code*>(0), *static_cast<const Iterator*>(0)))) != 1; }; template <typename ConnectCondition, typename Iterator> inline Iterator call_connect_condition(ConnectCondition& connect_condition, const asio::error_code& ec, Iterator next, Iterator end, typename enable_if<is_legacy_connect_condition< ConnectCondition, Iterator>::value>::type* = 0) { if (next != end) return connect_condition(ec, next); return end; } template <typename ConnectCondition, typename Iterator> inline Iterator call_connect_condition(ConnectCondition& connect_condition, const asio::error_code& ec, Iterator next, Iterator end, typename enable_if<!is_legacy_connect_condition< ConnectCondition, Iterator>::value>::type* = 0) { for (;next != end; ++next) if (connect_condition(ec, *next)) return next; return end; } } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence> typename Protocol::endpoint connect( basic_socket<Protocol ASIO_SVC_TARG>& s, const EndpointSequence& endpoints, typename enable_if<is_endpoint_sequence< EndpointSequence>::value>::type*) { asio::error_code ec; typename Protocol::endpoint result = connect(s, endpoints, ec); asio::detail::throw_error(ec, "connect"); return result; } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence> typename Protocol::endpoint connect( basic_socket<Protocol ASIO_SVC_TARG>& s, const EndpointSequence& endpoints, asio::error_code& ec, typename enable_if<is_endpoint_sequence< EndpointSequence>::value>::type*) { return detail::deref_connect_result<Protocol>( connect(s, endpoints.begin(), endpoints.end(), detail::default_connect_condition(), ec), ec); } #if !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator> Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, typename enable_if<!is_endpoint_sequence<Iterator>::value>::type*) { asio::error_code ec; Iterator result = connect(s, begin, ec); asio::detail::throw_error(ec, "connect"); return result; } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator> inline Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, asio::error_code& ec, typename enable_if<!is_endpoint_sequence<Iterator>::value>::type*) { return connect(s, begin, Iterator(), detail::default_connect_condition(), ec); } #endif // !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator> Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, Iterator end) { asio::error_code ec; Iterator result = connect(s, begin, end, ec); asio::detail::throw_error(ec, "connect"); return result; } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator> inline Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, Iterator end, asio::error_code& ec) { return connect(s, begin, end, detail::default_connect_condition(), ec); } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition> typename Protocol::endpoint connect( basic_socket<Protocol ASIO_SVC_TARG>& s, const EndpointSequence& endpoints, ConnectCondition connect_condition, typename enable_if<is_endpoint_sequence< EndpointSequence>::value>::type*) { asio::error_code ec; typename Protocol::endpoint result = connect( s, endpoints, connect_condition, ec); asio::detail::throw_error(ec, "connect"); return result; } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition> typename Protocol::endpoint connect( basic_socket<Protocol ASIO_SVC_TARG>& s, const EndpointSequence& endpoints, ConnectCondition connect_condition, asio::error_code& ec, typename enable_if<is_endpoint_sequence< EndpointSequence>::value>::type*) { return detail::deref_connect_result<Protocol>( connect(s, endpoints.begin(), endpoints.end(), connect_condition, ec), ec); } #if !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition> Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, ConnectCondition connect_condition, typename enable_if<!is_endpoint_sequence<Iterator>::value>::type*) { asio::error_code ec; Iterator result = connect(s, begin, connect_condition, ec); asio::detail::throw_error(ec, "connect"); return result; } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition> inline Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, ConnectCondition connect_condition, asio::error_code& ec, typename enable_if<!is_endpoint_sequence<Iterator>::value>::type*) { return connect(s, begin, Iterator(), connect_condition, ec); } #endif // !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition> Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, Iterator end, ConnectCondition connect_condition) { asio::error_code ec; Iterator result = connect(s, begin, end, connect_condition, ec); asio::detail::throw_error(ec, "connect"); return result; } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition> Iterator connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, Iterator end, ConnectCondition connect_condition, asio::error_code& ec) { ec = asio::error_code(); for (Iterator iter = begin; iter != end; ++iter) { iter = (detail::call_connect_condition(connect_condition, ec, iter, end)); if (iter != end) { s.close(ec); s.connect(*iter, ec); if (!ec) return iter; } else break; } if (!ec) ec = asio::error::not_found; return end; } namespace detail { // Enable the empty base class optimisation for the connect condition. template <typename ConnectCondition> class base_from_connect_condition { protected: explicit base_from_connect_condition( const ConnectCondition& connect_condition) : connect_condition_(connect_condition) { } template <typename Iterator> void check_condition(const asio::error_code& ec, Iterator& iter, Iterator& end) { iter = detail::call_connect_condition(connect_condition_, ec, iter, end); } private: ConnectCondition connect_condition_; }; // The default_connect_condition implementation is essentially a no-op. This // template specialisation lets us eliminate all costs associated with it. template <> class base_from_connect_condition<default_connect_condition> { protected: explicit base_from_connect_condition(const default_connect_condition&) { } template <typename Iterator> void check_condition(const asio::error_code&, Iterator&, Iterator&) { } }; template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> class range_connect_op : base_from_connect_condition<ConnectCondition> { public: range_connect_op(basic_socket<Protocol ASIO_SVC_TARG>& sock, const EndpointSequence& endpoints, const ConnectCondition& connect_condition, RangeConnectHandler& handler) : base_from_connect_condition<ConnectCondition>(connect_condition), socket_(sock), endpoints_(endpoints), index_(0), start_(0), handler_(ASIO_MOVE_CAST(RangeConnectHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) range_connect_op(const range_connect_op& other) : base_from_connect_condition<ConnectCondition>(other), socket_(other.socket_), endpoints_(other.endpoints_), index_(other.index_), start_(other.start_), handler_(other.handler_) { } range_connect_op(range_connect_op&& other) : base_from_connect_condition<ConnectCondition>(other), socket_(other.socket_), endpoints_(other.endpoints_), index_(other.index_), start_(other.start_), handler_(ASIO_MOVE_CAST(RangeConnectHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(asio::error_code ec, int start = 0) { typename EndpointSequence::const_iterator begin = endpoints_.begin(); typename EndpointSequence::const_iterator iter = begin; std::advance(iter, index_); typename EndpointSequence::const_iterator end = endpoints_.end(); switch (start_ = start) { case 1: for (;;) { this->check_condition(ec, iter, end); index_ = std::distance(begin, iter); if (iter != end) { socket_.close(ec); socket_.async_connect(*iter, ASIO_MOVE_CAST(range_connect_op)(*this)); return; } if (start) { ec = asio::error::not_found; asio::post(socket_.get_executor(), detail::bind_handler( ASIO_MOVE_CAST(range_connect_op)(*this), ec)); return; } default: if (iter == end) break; if (!socket_.is_open()) { ec = asio::error::operation_aborted; break; } if (!ec) break; ++iter; ++index_; } handler_(static_cast<const asio::error_code&>(ec), static_cast<const typename Protocol::endpoint&>( ec || iter == end ? typename Protocol::endpoint() : *iter)); } } //private: basic_socket<Protocol ASIO_SVC_TARG>& socket_; EndpointSequence endpoints_; std::size_t index_; int start_; RangeConnectHandler handler_; }; template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> inline void* asio_handler_allocate(std::size_t size, range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>* this_handler) { return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> inline void asio_handler_deallocate(void* pointer, std::size_t size, range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> inline bool asio_handler_is_continuation( range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>* this_handler) { return asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> inline void asio_handler_invoke(Function& function, range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); } template <typename Function, typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> inline void asio_handler_invoke(const Function& function, range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> class iterator_connect_op : base_from_connect_condition<ConnectCondition> { public: iterator_connect_op(basic_socket<Protocol ASIO_SVC_TARG>& sock, const Iterator& begin, const Iterator& end, const ConnectCondition& connect_condition, IteratorConnectHandler& handler) : base_from_connect_condition<ConnectCondition>(connect_condition), socket_(sock), iter_(begin), end_(end), start_(0), handler_(ASIO_MOVE_CAST(IteratorConnectHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) iterator_connect_op(const iterator_connect_op& other) : base_from_connect_condition<ConnectCondition>(other), socket_(other.socket_), iter_(other.iter_), end_(other.end_), start_(other.start_), handler_(other.handler_) { } iterator_connect_op(iterator_connect_op&& other) : base_from_connect_condition<ConnectCondition>(other), socket_(other.socket_), iter_(other.iter_), end_(other.end_), start_(other.start_), handler_(ASIO_MOVE_CAST(IteratorConnectHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(asio::error_code ec, int start = 0) { switch (start_ = start) { case 1: for (;;) { this->check_condition(ec, iter_, end_); if (iter_ != end_) { socket_.close(ec); socket_.async_connect(*iter_, ASIO_MOVE_CAST(iterator_connect_op)(*this)); return; } if (start) { ec = asio::error::not_found; asio::post(socket_.get_executor(), detail::bind_handler( ASIO_MOVE_CAST(iterator_connect_op)(*this), ec)); return; } default: if (iter_ == end_) break; if (!socket_.is_open()) { ec = asio::error::operation_aborted; break; } if (!ec) break; ++iter_; } handler_(static_cast<const asio::error_code&>(ec), static_cast<const Iterator&>(iter_)); } } //private: basic_socket<Protocol ASIO_SVC_TARG>& socket_; Iterator iter_; Iterator end_; int start_; IteratorConnectHandler handler_; }; template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline void* asio_handler_allocate(std::size_t size, iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>* this_handler) { return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline void asio_handler_deallocate(void* pointer, std::size_t size, iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); } template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline bool asio_handler_is_continuation( iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>* this_handler) { return asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline void asio_handler_invoke(Function& function, iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); } template <typename Function, typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline void asio_handler_invoke(const Function& function, iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); } } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler, typename Allocator> struct associated_allocator< detail::range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>, Allocator> { typedef typename associated_allocator< RangeConnectHandler, Allocator>::type type; static type get( const detail::range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator<RangeConnectHandler, Allocator>::get(h.handler_, a); } }; template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler, typename Executor> struct associated_executor< detail::range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>, Executor> { typedef typename associated_executor< RangeConnectHandler, Executor>::type type; static type get( const detail::range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, RangeConnectHandler>& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor<RangeConnectHandler, Executor>::get(h.handler_, ex); } }; template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler, typename Allocator> struct associated_allocator< detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>, Allocator> { typedef typename associated_allocator< IteratorConnectHandler, Allocator>::type type; static type get( const detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator<IteratorConnectHandler, Allocator>::get(h.handler_, a); } }; template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler, typename Executor> struct associated_executor< detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>, Executor> { typedef typename associated_executor< IteratorConnectHandler, Executor>::type type; static type get( const detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, IteratorConnectHandler>& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor<IteratorConnectHandler, Executor>::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename RangeConnectHandler> inline ASIO_INITFN_RESULT_TYPE(RangeConnectHandler, void (asio::error_code, typename Protocol::endpoint)) async_connect(basic_socket<Protocol ASIO_SVC_TARG>& s, const EndpointSequence& endpoints, ASIO_MOVE_ARG(RangeConnectHandler) handler, typename enable_if<is_endpoint_sequence< EndpointSequence>::value>::type*) { // If you get an error on the following line it means that your handler does // not meet the documented type requirements for a RangeConnectHandler. ASIO_RANGE_CONNECT_HANDLER_CHECK( RangeConnectHandler, handler, typename Protocol::endpoint) type_check; async_completion<RangeConnectHandler, void (asio::error_code, typename Protocol::endpoint)> init(handler); detail::range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, detail::default_connect_condition, ASIO_HANDLER_TYPE(RangeConnectHandler, void (asio::error_code, typename Protocol::endpoint))>(s, endpoints, detail::default_connect_condition(), init.completion_handler)(asio::error_code(), 1); return init.result.get(); } #if !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename IteratorConnectHandler> inline ASIO_INITFN_RESULT_TYPE(IteratorConnectHandler, void (asio::error_code, Iterator)) async_connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, ASIO_MOVE_ARG(IteratorConnectHandler) handler, typename enable_if<!is_endpoint_sequence<Iterator>::value>::type*) { // If you get an error on the following line it means that your handler does // not meet the documented type requirements for a IteratorConnectHandler. ASIO_ITERATOR_CONNECT_HANDLER_CHECK( IteratorConnectHandler, handler, Iterator) type_check; async_completion<IteratorConnectHandler, void (asio::error_code, Iterator)> init(handler); detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, detail::default_connect_condition, ASIO_HANDLER_TYPE( IteratorConnectHandler, void (asio::error_code, Iterator))>(s, begin, Iterator(), detail::default_connect_condition(), init.completion_handler)(asio::error_code(), 1); return init.result.get(); } #endif // !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename IteratorConnectHandler> inline ASIO_INITFN_RESULT_TYPE(IteratorConnectHandler, void (asio::error_code, Iterator)) async_connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, Iterator end, ASIO_MOVE_ARG(IteratorConnectHandler) handler) { // If you get an error on the following line it means that your handler does // not meet the documented type requirements for a IteratorConnectHandler. ASIO_ITERATOR_CONNECT_HANDLER_CHECK( IteratorConnectHandler, handler, Iterator) type_check; async_completion<IteratorConnectHandler, void (asio::error_code, Iterator)> init(handler); detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, detail::default_connect_condition, ASIO_HANDLER_TYPE( IteratorConnectHandler, void (asio::error_code, Iterator))>(s, begin, end, detail::default_connect_condition(), init.completion_handler)(asio::error_code(), 1); return init.result.get(); } template <typename Protocol ASIO_SVC_TPARAM, typename EndpointSequence, typename ConnectCondition, typename RangeConnectHandler> inline ASIO_INITFN_RESULT_TYPE(RangeConnectHandler, void (asio::error_code, typename Protocol::endpoint)) async_connect(basic_socket<Protocol ASIO_SVC_TARG>& s, const EndpointSequence& endpoints, ConnectCondition connect_condition, ASIO_MOVE_ARG(RangeConnectHandler) handler, typename enable_if<is_endpoint_sequence< EndpointSequence>::value>::type*) { // If you get an error on the following line it means that your handler does // not meet the documented type requirements for a RangeConnectHandler. ASIO_RANGE_CONNECT_HANDLER_CHECK( RangeConnectHandler, handler, typename Protocol::endpoint) type_check; async_completion<RangeConnectHandler, void (asio::error_code, typename Protocol::endpoint)> init(handler); detail::range_connect_op<Protocol ASIO_SVC_TARG, EndpointSequence, ConnectCondition, ASIO_HANDLER_TYPE(RangeConnectHandler, void (asio::error_code, typename Protocol::endpoint))>(s, endpoints, connect_condition, init.completion_handler)( asio::error_code(), 1); return init.result.get(); } #if !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline ASIO_INITFN_RESULT_TYPE(IteratorConnectHandler, void (asio::error_code, Iterator)) async_connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, ConnectCondition connect_condition, ASIO_MOVE_ARG(IteratorConnectHandler) handler, typename enable_if<!is_endpoint_sequence<Iterator>::value>::type*) { // If you get an error on the following line it means that your handler does // not meet the documented type requirements for a IteratorConnectHandler. ASIO_ITERATOR_CONNECT_HANDLER_CHECK( IteratorConnectHandler, handler, Iterator) type_check; async_completion<IteratorConnectHandler, void (asio::error_code, Iterator)> init(handler); detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, ASIO_HANDLER_TYPE( IteratorConnectHandler, void (asio::error_code, Iterator))>(s, begin, Iterator(), connect_condition, init.completion_handler)( asio::error_code(), 1); return init.result.get(); } #endif // !defined(ASIO_NO_DEPRECATED) template <typename Protocol ASIO_SVC_TPARAM, typename Iterator, typename ConnectCondition, typename IteratorConnectHandler> inline ASIO_INITFN_RESULT_TYPE(IteratorConnectHandler, void (asio::error_code, Iterator)) async_connect(basic_socket<Protocol ASIO_SVC_TARG>& s, Iterator begin, Iterator end, ConnectCondition connect_condition, ASIO_MOVE_ARG(IteratorConnectHandler) handler) { // If you get an error on the following line it means that your handler does // not meet the documented type requirements for a IteratorConnectHandler. ASIO_ITERATOR_CONNECT_HANDLER_CHECK( IteratorConnectHandler, handler, Iterator) type_check; async_completion<IteratorConnectHandler, void (asio::error_code, Iterator)> init(handler); detail::iterator_connect_op<Protocol ASIO_SVC_TARG, Iterator, ConnectCondition, ASIO_HANDLER_TYPE( IteratorConnectHandler, void (asio::error_code, Iterator))>(s, begin, end, connect_condition, init.completion_handler)( asio::error_code(), 1); return init.result.get(); } } // namespace asio #include "asio/detail/pop_options.hpp" #endif // ASIO_IMPL_CONNECT_HPP