No datagram support in socket

[FelixGaudin]

The documentation states that using a datagram socket is possible (http://mozart2.org/mozart-v1/doc-1.4.0/op/node11.html#section.type). But when executing the following code :

SFD={New Open.socket init(type: datagram protocol: "udp" time:~1)}

There is an error that comes from the function CompatSocket in this file.

   fun {CompatSocket Domain Type Proto}
      case Domain of 'PF_INET' then
         case Type
         of 'SOCK_STREAM' then
            {New CompatTCPSocketClass init(desc:$) _}
         end
      end
   end

There is no matching for datagram and also no support.