On Tuesday, 03/22/2011 at 12:18 EDT, Les Koehler <vmr...@tampabay.rr.com> wrote: > So with FILE CONTROL you can't replace co-dependent files in one atomic > operation, as one would do with the 'copyfile two-step' (love that phrase!)?
Yes, you can (and in DIRECTORY CONTROL directories, too), but you need to become familiar with workunits, DMSGETWU, DMSPUSWU and DMSPOPWU. See the discussion of workunits in Chapter 12 of the CMS Application Dev. Guide. If memory serves, you get a new workunit, push it on the stack, do all your file updates, then pop the workunit. But it's been a long time. Just don't expect RENAME and ERASE to obey the rules. I think they are atomic operations. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott
