david
f1b65eb4d9
The O_NONBLOCK flag set by setblocking(False) was not cleared by settimeout(n) on this CPython/kernel combo, causing recvfrom to never return data. Switched to explicit select.poll() with frame-interval based timeout — simpler, more portable, and avoids the O_NONBLOCK trap. Also fixes midi-bridge: add time.sleep(0.01) in no-data paths to prevent 100% CPU spin from spurious POLLIN on f_midi rawmidi.