NAME
        LockRecords -- lock a series of records (v36)

   SYNOPSIS
        success = LockRecords(record_array,timeout)
        D0                       D1           D2

        bool lockrecords(struct recordlock *,ulong)

   FUNCTION
        This locks several records within a file for exclusive access.
        Timeout is how long to wait in ticks for the records to be available.
        The wait is applied to each attempt to lock each record in the list.
        It is recommended that you always lock a set of records in the same
        order to reduce possibilities of deadlock.

        The array of recordlock structures is terminated by an entry with
        rec_FH of NULL.

   INPUTS
        record_array - list of records to be locked
        timeout      - Timeout interval.  0 is legal

   RESULT
        success      - Success or failure

   BUGS
        See lockrecord()

   SEE ALSO
        lockrecord(), unlockrecord(), unlockrecords()