1. 對應socket api的accept()函數，用于服務端在指定的端口接收連接。

eg.

boost::asio::ip::tcp::acceptor acceptor(my_context);boost::asio::ip::tcp::endpoint endpoint(boost::asio::ip::tcp::v4(), 12345);acceptor.open(endpoint.protocol());acceptor.bind(endpoint);

1.1

template <typename Protocol, typename Executor> class basic_socket_acceptor: public socket_base {void listen(int backlog = socket_base::max_listen_connections){boost::system::error_code ec;impl_.get_service().listen(impl_.get_implementation(), backlog, ec);boost::asio::detail::throw_error(ec, "listen");}BOOST_ASIO_SYNC_OP_VOID close(boost::system::error_code& ec){impl_.get_service().close(impl_.get_implementation(), ec);BOOST_ASIO_SYNC_OP_VOID_RETURN(ec);}BOOST_ASIO_SYNC_OP_VOID cancel(boost::system::error_code& ec){impl_.get_service().cancel(impl_.get_implementation(), ec);BOOST_ASIO_SYNC_OP_VOID_RETURN(ec);}/// Set an option on the acceptor. template <typename SettableSocketOption>void set_option(const SettableSocketOption& option){boost::system::error_code ec;impl_.get_service().set_option(impl_.get_implementation(), option, ec);boost::asio::detail::throw_error(ec, "set_option");}void wait(wait_type w){boost::system::error_code ec;impl_.get_service().wait(impl_.get_implementation(), w, ec);boost::asio::detail::throw_error(ec, "wait");}template <typename WaitHandler>BOOST_ASIO_INITFN_RESULT_TYPE(WaitHandler,void (boost::system::error_code))async_wait(wait_type w, BOOST_ASIO_MOVE_ARG(WaitHandler) handler){return async_initiate<WaitHandler, void (boost::system::error_code)>(initiate_async_wait(), handler, this, w);}template <typename Protocol1, typename Executor1>void accept(basic_socket<Protocol1, Executor1>& peer,typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0){boost::system::error_code ec;impl_.get_service().accept(impl_.get_implementation(),peer, static_cast<endpoint_type*>(0), ec);boost::asio::detail::throw_error(ec, "accept");} 《新程序員》：云原生和全面數字化實踐50位技術專家共同創作，文字、視頻、音頻交互閱讀

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