The openbsd branch and master both changed the top fallback in CpuUsage
and diverged. Combine them:
- Keep master's /proc/stat diagnostics: report why /proc/stat could not
be read (ProcSubset=pid mount namespace vs open failure), default the
fields split out of top output so an empty result does not warn under
-w, and only complain once per process.
- Keep the openbsd branch's parse_bsd_top_cpu(): OpenBSD top prints CPU
states in a format neither the FreeBSD nor the Linux grep matches, so
when the greps produce no numbers, parse raw top output. It handles
both the aggregate "CPU states:" line and per-core "CPU0 states:"
lines, averaging over the lines seen, and does not depend on padding.
- Carry over scripts/ZoneMinder/t/server_cpu.t covering it.
Tests: prove -Iscripts/ZoneMinder/lib scripts/ZoneMinder/t/server_cpu.t
-> 16/16 pass. perl -c on Server.pm is clean.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Kfiom9RefM75GTZFkqpJo2
