text: #pragma once
  
  #include <cstddef>
  
  namespace echo
  {
      constexpr unsigned short serverPortNumber = 54321;
      constexpr std::size_t maxDataSize = 256;
      constexpr int maxClientNmb = 2;
      enum ServerError
      {
          SERVER_FINISH_OK = 0,
          SERVER_BINDING_ERROR = 1,
      };
  }