ceph/src/boost/libs/asio/example/cpp03/iostreams/daytime_server.cpp

   1 //
   2 // daytime_server.cpp
   3 // ~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #include <ctime>
  12 #include <iostream>
  13 #include <string>
  14 #include <boost/asio.hpp>
  15
  16 using boost::asio::ip::tcp;
  17
  18 std::string make_daytime_string()
  19 {
  20   using namespace std; // For time_t, time and ctime;
  21   time_t now = time(0);
  22   return ctime(&now);
  23 }
  24
  25 int main()
  26 {
  27   try
  28   {
  29     boost::asio::io_context io_context;
  30
  31     tcp::endpoint endpoint(tcp::v4(), 13);
  32     tcp::acceptor acceptor(io_context, endpoint);
  33
  34     for (;;)
  35     {
  36       tcp::iostream stream;
  37       boost::system::error_code ec;
  38       acceptor.accept(stream.socket(), ec);
  39       if (!ec)
  40       {
  41         stream << make_daytime_string();
  42       }
  43     }
  44   }
  45   catch (std::exception& e)
  46   {
  47     std::cerr << e.what() << std::endl;
  48   }
  49
  50   return 0;
  51 }