Alex Vanderveen 1982e7dcb5 netplay: host relay for online rooms (amends §108 "online is always SFU") ...

An online room this build hosts asks the lobby server for transport "host"
(match_caps.relay): the host carries the match on its own UDP port and
guests dial it; the server's relay (SFU) is the fallback when a guest's
probe fails (recomp-net-server WS_LOBBY.md "Host relay"). The mechanics are
recomp-net's recomp_net/host_relay.h, pinned here (lib/recomp-net b0751b7);
this engine's own lobby-client copy gets the same glue as rnet_lobby_client:
the cap (emitted only when asked), the launch's transport ->
PsxLobbyJoinInfo.transport_host (force_input_relay 0; the host accepts
first / hubs instead of dialling the guest's LAN address), each seat's
published path / path_fresh, host_relay_step() from psx_lobby_pump, and
unmap on leave / disconnect.

psx_netplay: transport_host takes the LAN / hub path instead of the "MotK
online needs the SFU" rule. main.cpp: relay_host_get/set + relay_status
for recomp-ui (Network Settings / MATCH SETTINGS / ROOM "Match Relay"),
transport_host on the launch and into PsxNetplayConfig, and the
host==guest-advertise SFU inference skipped on a host launch; all under
RECOMP_LAUNCHER_HAS_HOST_RELAY so older recomp-ui pins still build.

Compile-checked against workspace recomp-ui 58604b0 (MOTK scratch
configure: full build and link).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

2026-10-01 19:10:30 -04:00

..

recomp-net @ b0751b7b8f

netplay: host relay for online rooms (amends §108 "online is always SFU")

2026-10-01 19:10:30 -04:00

retcomm-rbengine @ 2a03e73693

bump

2026-09-27 00:00:46 -04:00