| // |
| // daytime_client.cpp |
| // ~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2015 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) |
| // |
| |
| #include <asio.hpp> |
| #include <boost/bind.hpp> |
| #include <iostream> |
| #include "logger.hpp" |
| #include "stream_socket_service.hpp" |
| |
| typedef asio::basic_stream_socket<asio::ip::tcp, |
| services::stream_socket_service<asio::ip::tcp> > debug_stream_socket; |
| |
| char read_buffer[1024]; |
| |
| void read_handler(const asio::error_code& e, |
| std::size_t bytes_transferred, debug_stream_socket* s) |
| { |
| if (!e) |
| { |
| std::cout.write(read_buffer, bytes_transferred); |
| |
| s->async_read_some(asio::buffer(read_buffer), |
| boost::bind(read_handler, asio::placeholders::error, |
| asio::placeholders::bytes_transferred, s)); |
| } |
| } |
| |
| void connect_handler(const asio::error_code& e, debug_stream_socket* s) |
| { |
| if (!e) |
| { |
| s->async_read_some(asio::buffer(read_buffer), |
| boost::bind(read_handler, asio::placeholders::error, |
| asio::placeholders::bytes_transferred, s)); |
| } |
| else |
| { |
| std::cerr << e.message() << std::endl; |
| } |
| } |
| |
| int main(int argc, char* argv[]) |
| { |
| try |
| { |
| if (argc != 2) |
| { |
| std::cerr << "Usage: daytime_client <host>" << std::endl; |
| return 1; |
| } |
| |
| asio::io_context io_context; |
| |
| // Set the name of the file that all logger instances will use. |
| services::logger logger(io_context, ""); |
| logger.use_file("log.txt"); |
| |
| // Resolve the address corresponding to the given host. |
| asio::ip::tcp::resolver resolver(io_context); |
| asio::ip::tcp::resolver::results_type endpoints = |
| resolver.resolve(argv[1], "daytime"); |
| |
| // Start an asynchronous connect. |
| debug_stream_socket socket(io_context); |
| asio::async_connect(socket, endpoints, |
| boost::bind(connect_handler, |
| asio::placeholders::error, &socket)); |
| |
| // Run the io_context until all operations have finished. |
| io_context.run(); |
| } |
| catch (std::exception& e) |
| { |
| std::cerr << e.what() << std::endl; |
| } |
| |
| return 0; |
| } |