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