Ends a transaction by aborting it.

    $ABORT_TRANSW always waits for the request to complete before
    returning to the caller. Other than this, it is identical to
    $ABORT_TRANS.

    Format

      SYS$ABORT_TRANSW  [efn] ,[flags] ,iosb [,[astadr] ,[astprm]

                        ,[tid] ,[reason] ,[bid]]

    C Prototype

      int sys$abort_transw  (unsigned int efn, unsigned int flags,

                            struct _iosb *iosb,...);