The relay seat-wait loop (RelayRequestSeat -- the join/join_lan "patient
walk-up") blocked the window thread's message pump for its whole 30-minute
patience window: dial (2s timeout) -> Sleep(2000) -> repeat, with status
going only to the parent bat console. Windows flagged the frozen game
window "Not Responding" until the operator started the session
(user-reported).
- BTWaitScreenPaint (L4VIDEO.cpp): a GDI waiting screen on the main window
-- headline + detail line in the console green + a 12-segment marching
spinner phased on the tick clock. Pure GDI: flicker-free during the
seat wait (no D3D presenting yet), and re-painted after each
ExecuteIdle Present so the WaitingForEgg phase (previously a bare black
frame) shows "WAITING FOR MISSION ASSIGNMENT" too.
- RelayWaitTick (L4NET.CPP): PeekMessage pump + paint. The outer dial
loop's Sleep(2000) becomes 20 pumped 100ms slices ("WAITING FOR THE
OPERATOR'S SESSION" / "session at <ip:port> -- close this window to
cancel"); the inner seat-reply wait pumps per 200ms select slice.
Verified live against a dead relay address: window-only PrintWindow capture
shows the animated screen, and user32 IsHungAppWindow (the API behind "Not
Responding") reports FALSE throughout the wait.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
