accept method
Attaches the accepted channel and starts protocol initialization.
Implementation
AcpWebSocketServerSession accept(AcpWebSocketChannel channel) {
if (_settled) {
_owner._trackCleanup(_owner._closeRejectedChannel(channel));
throw StateError('ACP WebSocket upgrade has already been settled');
}
_settled = true;
_expiryTimer.cancel();
_owner._prepared.remove(this);
return _owner._accept(channel, _connection);
}