activate method
Publishes a pending connection after successful initialization.
Implementation
AcpServerConnectionState activate(String connectionId) {
final AcpServerConnectionState? state = _pending.remove(connectionId);
if (state == null) {
throw StateError('Unknown pending ACP connection: $connectionId');
}
if (state.isClosed) {
throw StateError('Cannot activate a closed ACP connection');
}
_active[connectionId] = state;
return state;
}