.. _program_listing_file_sockets_sockets.cpp:

Program Listing for File sockets.cpp
====================================

|exhale_lsh| :ref:`Return to documentation for file <file_sockets_sockets.cpp>` (``sockets/sockets.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "socket_headers.hpp"
   #include "sockets/sockets.hpp"
   #include <iostream>
   
   namespace c2k {
       Sockets::Sockets() {
   #ifdef _WIN32
           auto wsa_data = WSADATA{};
           static constexpr auto winsock_version = MAKEWORD(2, 2);
           if (WSAStartup(winsock_version, &wsa_data) != 0) {
               throw std::runtime_error{ "unable to initialize winsock" };
           }
   #endif
       }
   
       Sockets::~Sockets() {
   #ifdef _WIN32
           WSACleanup();
   #endif
       }
   
       // clang-format off
       [[nodiscard]] ClientSocket Sockets::create_client(
           AddressFamily const address_family,
           std::string const& host,
           std::uint16_t const port,
           Sockets const&
       ) { // clang-format on
           return ClientSocket{ address_family, host, port };
       }
   
       [[nodiscard]] Sockets const& Sockets::instance() {
           static auto handle = Sockets{};
           return handle;
       }
   } // namespace c2k