.. _program_listing_file_sockets_socket_headers.hpp:

Program Listing for File socket_headers.hpp
===========================================

|exhale_lsh| :ref:`Return to documentation for file <file_sockets_socket_headers.hpp>` (``sockets/socket_headers.hpp``)

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

.. code-block:: cpp

   #pragma once
   
   #include <cstdint>
   #include <cstdlib>
   
   #ifdef _WIN32
   
   #include <winsock2.h>
   #include <ws2tcpip.h>
   
   #else
   
   #include <netdb.h>
   #include <netinet/tcp.h>
   #include <sys/socket.h>
   #include <sys/types.h>
   #include <unistd.h>
   
   #endif
   
   namespace c2k::constants {
   
   #ifdef _WIN32
   
       inline constexpr auto invalid_socket = std::uintptr_t{ INVALID_SOCKET };
       inline constexpr auto socket_error = SOCKET_ERROR;
       inline constexpr auto reuse_port = SO_REUSEADDR;
       inline constexpr auto tcp_no_delay = TCP_NODELAY;
       inline constexpr auto send_flags = 0;
   
       using SockLen = int;
       using SendReceiveSize = int;
   
   #else
   
       inline constexpr auto invalid_socket = -1;
       inline constexpr auto socket_error = -1;
       inline constexpr auto reuse_port = SO_REUSEPORT;
       inline constexpr auto tcp_no_delay = TCP_NODELAY;
       inline constexpr auto send_flags = MSG_NOSIGNAL;
   
       using SockLen = unsigned int;
       using SendReceiveSize = std::size_t;
   #endif
   
   } // namespace c2k::constants
   
   #ifndef _WIN32
   
   inline int closesocket(int const socket) {
       return close(socket);
   }
   
   #endif