[LU-19276] add llapi_changelog_register() and llapi_changelog_deregister() functions

• Type: Improvement
• Resolution: Unresolved
• Priority: Medium
• Affects Version/s: Lustre 2.14.0, Lustre 2.16.0, Lustre 2.17.0
• Labels: easy
• Severity: 3
• Assignee: Emoly Liu
• Reporter: Andreas Dilger

Description

It would be useful to separate out the low-level Changelog user register/deregister functionality from the command-line parsing in jt_changelog_register() and jt_changelog_deregister() into llapi_changelog_register() and llapi_changelog_deregister() functions, so that this is available via C API to applications, and other languages via wrappers. These should be added to the liblustreapi_chlg.c file.

Man pages describing these new functions should also be added.

Issue Links

• is related to: LU-19273 no documentation for 'lfs changelog' fields in lfs-changelog.1 or manual
• is related to: LU-19296 changelog processing should use per-user state
• is related to: LU-19375 return multiple changelog records via llapi_changelog_recv_many()
• is related to: LU-19277 add man pages for functions in liblustreapi_fid.c