_sub_info
_sub_info *fNext; /* next subscriber in the stream*/
_sub_info *fPrev; /* previous subscriber in the stream */
_sub_info *fFreeSubs; /* free list of subscribers */
_sub_info *fFirstSub; /* first entered in itinierary */
_sub_info *fLastSub; /* last entered in itinerary */
_sub_info fSubscribers[B_MAX_SUBSCRIBER_COUNT];