Reorder Execute() main stage so the background thread waits on dataSem
(sleeping until the RT thread posts) before doing the socket select().
The socket poll is now non-blocking (timeout=0) since command latency
bounded by UDPS_DATA_WAIT_MS is acceptable for CONNECT/DISCONNECT.
Also force-remove old udpstreamer-webui binary in run.sh before rebuild
so stale embedded assets are never served.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replace fragile zoomGuard boolean with userInteracting flag so that
programmatic scale updates (rolling window, resize, fit) never lock
p.xRange. Only genuine mouse drag or scroll-wheel events on the uPlot
canvas set userInteracting=true and allow onZoom to freeze the view.
Also move stale-xRange detection out of the needsRedraw gate so that a
plot whose circular buffer has scrolled past a frozen zoom range
automatically returns to rolling-window mode every frame, fixing the
second bug where data disappeared as the buffer wrapped.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Martino Ferrari