beast/example/websocket/server/chat-multi/websocket_session.hpp

87 lines
2.4 KiB
C++

//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail 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)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_WEBSOCKET_SESSION_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_WEBSOCKET_SESSION_HPP
#include "net.hpp"
#include "beast.hpp"
#include "shared_state.hpp"
#include <cstdlib>
#include <memory>
#include <string>
#include <vector>
// Forward declaration
class shared_state;
/** Represents an active WebSocket connection to the server
*/
class websocket_session : public boost::enable_shared_from_this<websocket_session>
{
beast::flat_buffer buffer_;
websocket::stream<beast::tcp_stream> ws_;
boost::shared_ptr<shared_state> state_;
std::vector<boost::shared_ptr<std::string const>> queue_;
void fail(beast::error_code ec, char const* what);
void on_accept(beast::error_code ec);
void on_read(beast::error_code ec, std::size_t bytes_transferred);
void on_write(beast::error_code ec, std::size_t bytes_transferred);
public:
websocket_session(
tcp::socket&& socket,
boost::shared_ptr<shared_state> const& state);
~websocket_session();
template<class Body, class Allocator>
void
run(http::request<Body, http::basic_fields<Allocator>> req);
// Send a message
void
send(boost::shared_ptr<std::string const> const& ss);
private:
void
on_send(boost::shared_ptr<std::string const> const& ss);
};
template<class Body, class Allocator>
void
websocket_session::
run(http::request<Body, http::basic_fields<Allocator>> req)
{
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-chat-multi");
}));
// Accept the websocket handshake
ws_.async_accept(
req,
beast::bind_front_handler(
&websocket_session::on_accept,
shared_from_this()));
}
#endif