seqGap method

void seqGap()

Makes resuming impossible (ring buffer forgotten) and tells every session to resync.

Implementation

void seqGap() {
  bus.forgetBefore(bus.seq + 1);
  for (final s in bus.sessions) {
    if (s is FakeWsSession) {
      s.sendResync([...s.filters], 'gap-too-old');
    }
  }
}