nledez / tun-manager / 32017784151

100%

Build Type

push

github

Committed by nledez

Commit Message

feat(tui): graph the traffic of a tunnel with `g`

The table says how many bytes a tunnel has carried since it came up, which
answers whether it works but not what it is doing right now. `g` opens a
graph of the tunnel under the cursor, download above upload.

The two directions are scaled apart: sharing one scale would flatten a
typical upload into a line along the axis under any download worth
watching. Each carries its peak in its label, since the shape alone says
how the traffic moved but nothing about how much of it there was.

Readings are taken once a second and only while the pane is open. The
counters are cumulative, so a rate is a difference between two readings,
and three things make that difference lie: the first reading has nothing
to compare against, a tunnel restarted between two readings starts
counting from zero again, and two readings at the same instant divide by
no time at all. internal/rate handles all three rather than leaving them
to whoever draws.

Sampling reads the control socket alone - no configs, no network
detection - because the periodic refresh does far too much work to repeat
every second.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Coverage Stats

197 of 197 new or added lines in 7 files covered. (100.0%)

4 existing lines in 1 file now uncovered.

1875 of 1882 relevant lines covered (99.63%)

43.59 hits per line