99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
/*
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* Copyright (c) 2015, Peter Thorson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the WebSocket++ Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* TCP Echo Server
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*
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* This file defines a simple TCP Echo Server. It is adapted from the Asio
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* example: cpp03/echo/async_tcp_echo_server.cpp
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*/
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#include <websocketpp/common/asio.hpp>
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#include <websocketpp/common/memory.hpp>
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#include <websocketpp/common/functional.hpp>
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using websocketpp::lib::placeholders::_1;
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using websocketpp::lib::placeholders::_2;
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using websocketpp::lib::bind;
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namespace asio = websocketpp::lib::asio;
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using tcp = asio::ip::tcp;
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struct tcp_echo_session : websocketpp::lib::enable_shared_from_this<tcp_echo_session> {
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typedef websocketpp::lib::shared_ptr<tcp_echo_session> ptr;
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tcp_echo_session(asio::io_service & service) : m_socket(service) {}
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void start() {
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m_socket.async_read_some(asio::buffer(m_buffer, sizeof(m_buffer)),
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websocketpp::lib::bind(
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&tcp_echo_session::handle_read, shared_from_this(), _1, _2));
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}
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void handle_read(const asio::error_code & ec, size_t transferred) {
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if (!ec) {
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asio::async_write(m_socket,
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asio::buffer(m_buffer, transferred),
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bind(&tcp_echo_session::handle_write, shared_from_this(), _1));
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}
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}
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void handle_write(const asio::error_code & ec) {
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if (!ec) {
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m_socket.async_read_some(asio::buffer(m_buffer, sizeof(m_buffer)),
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bind(&tcp_echo_session::handle_read, shared_from_this(), _1, _2));
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}
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}
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tcp::socket m_socket;
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char m_buffer[1024];
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};
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struct tcp_echo_server {
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tcp_echo_server(asio::io_service & service, short port)
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: m_service(service)
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, m_acceptor(service, tcp::endpoint(tcp::v6(), port))
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{
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this->start_accept();
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}
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void start_accept() {
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tcp_echo_session::ptr new_session(new tcp_echo_session(m_service));
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m_acceptor.async_accept(new_session->m_socket,
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bind(&tcp_echo_server::handle_accept, this, new_session, _1));
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}
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void handle_accept(tcp_echo_session::ptr new_session, const asio::error_code & ec) {
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if (!ec) {
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new_session->start();
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}
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start_accept();
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}
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asio::io_service & m_service;
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tcp::acceptor m_acceptor;
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};
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