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feat(multiplayer): handle planned shutdowns on clients

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Josh Creek
2026-09-01 16:43:47 +01:00
parent b24f9fc448
commit 4e88ea80f3
5 changed files with 25 additions and 1 deletions
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multiplayer-next.md
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@@ -1426,3 +1426,5 @@ Allocated Godot runtime now applies the same initial-connect policy: ranked allo
An adversarial transaction review found that cancellation released only no-show participant rows, which would leave innocent players marked active in the cancelled match and trip the active-match uniqueness fence on their next match. `ApplyInitialConnectPlan` now releases the complete participant roster on cancellation, while retaining cooldown penalties only for no-shows; the full Go suite, race checks, and vet pass.
The documented `server_shutdown` reliable control message is now implemented in `MatchNet`, with bounded reason sanitisation and an authority-only receiver signal. Controlled drain broadcasts `server_draining`; allocated initial-connect cancellation broadcasts its policy reason and waits a transport-flush beat before closing. The 156-test Godot harness covers emission and bounds; full multi-process drain delivery remains a live integration gate.
Clients now consume planned shutdowns: the reason is retained for presentation, an in-match client returns to the lobby after the notice, and the generic disconnect callback is fenced so it cannot overwrite that planned transition. Lobby clients surface the reason directly. The complete Godot harness remains green; real two-process drain delivery is still an external runtime gate.