Files
livekit/pkg/rtc/signalling
Raja SubramanianandClaude Opus 5 0aae7a4894 fix: hold signal messages until the ReconnectResponse goes out (#4827)
* fix: hold signal messages until the ReconnectResponse goes out

Clients take the ReconnectResponse as the first message on a resumed or
migrated in signal connection, anything ahead of it is dropped. Hold
messages back until it has been written.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix: keep queued participant updates on a path that always flushes

Queue only while the participant is not ready, that queue is always
drained by the join or reconnect response. Log a dropped SDP, it leaves
the negotiation waiting until the state machine recovers it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix: flush queued updates whenever the connection opens

Queue participant updates while the handshake is pending again, and give
the signaller a hook that fires when the connection opens, on an explicit
open and on the handshake window expiring, so the queue always drains.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix: drive the handshake window off a timer and read the gate atomically

The window ran only when something asked whether the handshake was
pending, so a connection with nothing else to send held its queue.
Reading the gate under the lock the flush takes closes the race where an
update queued just after a flush.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix: ignore a handshake timeout from a wait that has ended

Stop cannot cancel a timeout that is already running, so tag each wait
and let a timeout act only on its own. Count opens atomically in the
test, the timer fires on its own goroutine.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-01 13:59:04 +05:30
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