NAME
        AbortIO - Abort an IO request


   SYNOPSIS
        AbortIO(IORequest)
                   A1


   FUNCTION
        Exec library call to abort a specified READ or WRITE request.
        The iorequest may be in the queue or currently active.  if
        currently active, the request is immediately stopped and then
        removed.


   INPUTS
        Pointer to the iorequest block to be aborted.


   RESULTS
        io_Error field in the iorequest block set to #ioerr_aborted.


   SEE ALSO