API for applications without event loop.

[godunko]

No description provided.

[reznikmm]

Instead of patching asynchronous API with synchronous function I would propose to develop a dedicated synchronous API. Perhaps we can leverage synchronous interfaces, so the use use timed entry call:

select
   P.Read_Standard_Output (Data, Last);
or 
   delay 5.0;
end select;

or conditional entry call

select
   P.Read_Standard_Output (Data, Last);
else 
   Do_Something_Else;
end select;