Function useStreamingProtocol

src/sdam/monitor.ts:245–259

(monitor: Monitor, topologyVersion: TopologyVersion | null)

}

function useStreamingProtocol(monitor: Monitor, topologyVersion: TopologyVersion | null): boolean {
  // If we have no topology version we always poll no matter
  // what the user provided, since the server does not support
  // the streaming protocol.
  if (topologyVersion == null) return false;

  const serverMonitoringMode = monitor.options.serverMonitoringMode;
  if (serverMonitoringMode === ServerMonitoringMode.poll) return false;
  if (serverMonitoringMode === ServerMonitoringMode.stream) return true;

  // If we are in auto mode, we need to figure out if we're in a FaaS
  // environment or not and choose the appropriate mode.
  if (monitor.isRunningInFaasEnv) return false;
  return true;
}

function checkServer(monitor: Monitor, callback: Callback<Document | null>) {
  let start: number;