connection.hpp

//
// connection.hpp
// ~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2008 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)
//

#ifndef HTTP_SERVER3_CONNECTION_HPP
#define HTTP_SERVER3_CONNECTION_HPP

#include <boost/asio.hpp>
#include <boost/array.hpp>
#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/bind.hpp>
#include <vector>
#include <boost/enable_shared_from_this.hpp>
#include "reply.hpp"
#include "request.hpp"
#include "request_handler.hpp"
#include "request_parser.hpp"
#include <iostream>
namespace http
{
  namespace server
  {

    /// Represents a single connection from a client.
    class connection: public boost::enable_shared_from_this<connection>, private boost::noncopyable
    {
    public:
      /// Construct a connection with the given io_service.
      explicit
      connection(boost::asio::io_service& io_service, request_handler& handler);

      /// Get the socket associated with the connection.
      boost::asio::ip::tcp::socket&
      socket();

      /// Start the first asynchronous operation for the connection.
      void
      start();

      /// Handle completion of a read operation.
      void
      handle_read(const boost::system::error_code& e, std::size_t bytes_transferred);

      /// Handle completion of a write operation.
      void
      handle_write(const boost::system::error_code& e);

      void
      async_write(const std::vector<boost::asio::const_buffer>& buffers)

      {
        boost::asio::async_write(
            socket_, buffers,
            strand_.wrap(boost::bind(&connection::handle_write, shared_from_this(), boost::asio::placeholders::error)));

      }

      template<typename HandleWrite>
      void
      async_write(const std::vector<boost::asio::const_buffer>& buffers, const HandleWrite& handler)

      {
        boost::asio::async_write(socket_, buffers, strand_.wrap(handler));

      }

      /// No callbacks will be called concurrently for this connection.
      boost::asio::strand strand_;

      /// Socket for the connection.
      boost::asio::ip::tcp::socket socket_;

      /// The handler used to process the incoming request.
      request_handler& request_handler_;

      /// Buffer for incoming data.
      boost::array<char, 8192> buffer_;

      /// The incoming request.
      request request_;

      /// The parser for the incoming request.
      request_parser request_parser_;

      /// The reply to be sent back to the client.
      reply reply_;

    };

    typedef boost::shared_ptr<connection> connection_ptr;

  } // namespace server3
} // namespace http

#endif // HTTP_SERVER3_CONNECTION_HPP