diff options
Diffstat (limited to '3rdparty/asio/src/examples/cpp11/echo/async_tcp_echo_server.cpp')
-rw-r--r-- | 3rdparty/asio/src/examples/cpp11/echo/async_tcp_echo_server.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/3rdparty/asio/src/examples/cpp11/echo/async_tcp_echo_server.cpp b/3rdparty/asio/src/examples/cpp11/echo/async_tcp_echo_server.cpp new file mode 100644 index 00000000000..d76ebe94aae --- /dev/null +++ b/3rdparty/asio/src/examples/cpp11/echo/async_tcp_echo_server.cpp @@ -0,0 +1,114 @@ +// +// async_tcp_echo_server.cpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2016 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 <cstdlib> +#include <iostream> +#include <memory> +#include <utility> +#include "asio.hpp" + +using asio::ip::tcp; + +class session + : public std::enable_shared_from_this<session> +{ +public: + session(tcp::socket socket) + : socket_(std::move(socket)) + { + } + + void start() + { + do_read(); + } + +private: + void do_read() + { + auto self(shared_from_this()); + socket_.async_read_some(asio::buffer(data_, max_length), + [this, self](std::error_code ec, std::size_t length) + { + if (!ec) + { + do_write(length); + } + }); + } + + void do_write(std::size_t length) + { + auto self(shared_from_this()); + asio::async_write(socket_, asio::buffer(data_, length), + [this, self](std::error_code ec, std::size_t /*length*/) + { + if (!ec) + { + do_read(); + } + }); + } + + tcp::socket socket_; + enum { max_length = 1024 }; + char data_[max_length]; +}; + +class server +{ +public: + server(asio::io_context& io_context, short port) + : acceptor_(io_context, tcp::endpoint(tcp::v4(), port)) + { + do_accept(); + } + +private: + void do_accept() + { + acceptor_.async_accept( + [this](std::error_code ec, tcp::socket socket) + { + if (!ec) + { + std::make_shared<session>(std::move(socket))->start(); + } + + do_accept(); + }); + } + + tcp::acceptor acceptor_; +}; + +int main(int argc, char* argv[]) +{ + try + { + if (argc != 2) + { + std::cerr << "Usage: async_tcp_echo_server <port>\n"; + return 1; + } + + asio::io_context io_context; + + server s(io_context, std::atoi(argv[1])); + + io_context.run(); + } + catch (std::exception& e) + { + std::cerr << "Exception: " << e.what() << "\n"; + } + + return 0; +} |