documentation for new epics 7 dbLock usage and Redundant IOC software

["Baily, Scott A via Tech-talk" <tech-talk@aps.anl.gov>]

I’m attempting to update the redundant IOC software to build with EPICS 7. The API for record locking has been changed completely.  One component of the software needs to have the ability to change database links. With EPICS 3.15 this means calling a global lock function and some Add/remove link functions as well as dbLockSetSplit and dbLockSetMerge.  Many of these no longer exist, the new interface to lock a record or multiple records is much simpler, but what functions need to be called when modifying database links? Is there any documentation or examples I can look at?

Are the split and merge calls no longer needed?  Do I need to lock and unlock one or both records before adding or removing links, or do the epics 7 versions of dbAddLink and dbRemoveLink take care of the locking and lockset management?