On 2020-07-21 09:35, Seymour J Metz wrote:
I can see the point about creating an unnecessary subsystem, but what's complicated about looking up a subsystem?
It's not complicated to look up a subsystem, but it could be an excessive path length. I've seen systems with over 200 subsystems defined, and the search is linear. As Peter said, some susbsystems exist only to provide a place to store a control block address; such subsystems needlessly increase the path length of looking up "legitimate" subsystems.
N/T services are simple, and are meant for this purpose. -- Regards, Gord Tomlin Action Software International (a division of Mazda Computer Corporation) Tel: (905) 470-7113, Fax: (905) 470-6507 Support: https://actionsoftware.com/support/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
