TTY Group For TTY Stream

This is an optional step only for tty streams. A tty stream needs to register to its group for special tty service (see fli-ios-tty).

Finally the pointer to the created stream is returned to Prolog, and converted to Prolog stream representation through stream_code/2. In our example, we use the filename of the stream as the key to register into its group.

             if (option->format == QP_DELIM_TTY)
                 (void) QP_add_tty(&stream->qpinfo, filename);
     
             return &stream->qpinfo;