Reduce network change detection to 5s #10

2026-03-23T01:36:36+08:00

razvandimescu commented

2026-03-23 01:36:36 +08:00

(Migrated from github.com)

Summary

Tiered polling: LAN IP checked every 5s (cheap ~0.1ms UDP socket call), full upstream re-detection every 30s as safety net
Immediate trigger: when LAN IP changes, upstream re-detection runs immediately instead of waiting for the 30s cycle
Reduces worst-case recovery from 30s to 5s after switching Wi-Fi networks

No new dependencies. 8 lines changed.

Test plan

make all passes (fmt, clippy, audit, build)
Switch Wi-Fi networks, verify DNS recovers within ~5s
Verify scutil is NOT called every 5s (only every 30s or on IP change)

🤖 Generated with Claude Code

## Summary - **Tiered polling**: LAN IP checked every 5s (cheap ~0.1ms UDP socket call), full upstream re-detection every 30s as safety net - **Immediate trigger**: when LAN IP changes, upstream re-detection runs immediately instead of waiting for the 30s cycle - **Reduces worst-case recovery** from 30s to 5s after switching Wi-Fi networks No new dependencies. 8 lines changed. ## Test plan - [x] `make all` passes (fmt, clippy, audit, build) - [x] Switch Wi-Fi networks, verify DNS recovers within ~5s - [x] Verify `scutil` is NOT called every 5s (only every 30s or on IP change) 🤖 Generated with [Claude Code](https://claude.com/claude-code)

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Reference: dearsky/numa#10