asio C++ library

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Source listing for Daytime.3

//
// server.cpp
// ~~~~~~~~~~
//
// 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)
//

#include <ctime>
#include <iostream>
#include <string>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <asio.hpp>

using asio::ip::tcp;

std::string make_daytime_string()
{
  using namespace std; // For time_t, time and ctime;
  time_t now = time(0);
  return ctime(&now);
}

class tcp_connection
  : public boost::enable_shared_from_this<tcp_connection>
{
public:
  typedef boost::shared_ptr<tcp_connection> pointer;

  static pointer create(asio::io_service& io_service)
  {
    return pointer(new tcp_connection(io_service));
  }

  tcp::socket& socket()
  {
    return socket_;
  }

  void start()
  {
    message_ = make_daytime_string();

    asio::async_write(socket_, asio::buffer(message_),
        boost::bind(&tcp_connection::handle_write, shared_from_this(),
          asio::placeholders::error,
          asio::placeholders::bytes_transferred));
  }

private:
  tcp_connection(asio::io_service& io_service)
    : socket_(io_service)
  {
  }

  void handle_write(const asio::error_code& /*error*/,
      size_t /*bytes_transferred*/)
  {
  }

  tcp::socket socket_;
  std::string message_;
};

class tcp_server
{
public:
  tcp_server(asio::io_service& io_service)
    : acceptor_(io_service, tcp::endpoint(tcp::v4(), 13))
  {
    start_accept();
  }

private:
  void start_accept()
  {
    tcp_connection::pointer new_connection =
      tcpion::pointer< As in Step 4, when making the call to deadline_timer::async_wait()
        from main we bind the additional
        parameters needed for the print
        function.
      

  t.async_wait(boost::bind(print,
        asio::placeholders::error, &t, &count));

  io.run();

Finally, just to prove that the count variable was being used in the print handler function, we will print out its new value.

  std::cout << "Final count is " << count << "\n";

  return 0;
}

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./usr/share/doc/libasio-doc/asio/tutorial/tutdaytime3/0000755000000000000000000000000011153324441021626 5ustar rootroot./usr/share/doc/libasio-doc/asio/tutorial/tutdaytime3/src.html0000644000000000000000000004035611153324441023313 0ustar rootroot Source listing for Daytime.3