$GETLKIW

   Returns information about the lock database on a system.

   The $GETLKIW service completes synchronously; that is, it returns
   to the caller with the requested information.

   For asynchronous completion, use the Get Lock Information
   ($GETLKI) service; $GETLKI returns to the caller after queuing
   the information request, without waiting for the information to
   be returned.

   In all other respects, $GETLKIW is identical to $GETLKI. For all
   other information about the $GETLKIW service, see the description
   of $GETLKI in this manual.

   The $GETLKI, $GETLKIW, $ENQ, $ENQW, and $DEQ services together
   provide the user interface to the Lock Management facility.

   Format

     SYS$GETLKIW  [efn] ,lkidadr ,itmlst [,iosb] [,astadr] [,astprm]

                  [,nullarg]

   C Prototype

     int sys$getlkiw  (unsigned int efn, unsigned int *lkidadr,

                      void *itmlst, struct _iosb *iosb, void

                      (*astadr)(__unknown_params), int astprm,

                      unsigned int reserved);