Terrible message: Skipped 119 frames! The application may be doing too much work on its main thread.

[SergeyBurlaka]

Hi there is a very fat issue in you lib.

First i am registrate service :
private var disposableBonjourBradcast: Disposable = Disposables.empty()

val chatNameCode = PrefProvider.getInstance().currentTourCode
      val broadcastConfig = BonjourBroadcastConfig(
              type = "_$chatNameCode._tcp",
              name = PrefProvider.getInstance().userId,
              address = inetAddress,
              port = tcpServerPort,
              txtRecords = mapOf(
                      HOST to inetAddress.hostAddress!!,
                      TCP_PORT to tcpServerPort.toString(),
                      UDP_PORT to udpServerPort.toString(),
                      USER_ID to PrefProvider.getInstance().userId,
                      USER_TYPE to PrefProvider.getInstance().myCurrentRole,
                      USER_NAME to PrefProvider.getInstance().userName,

              ))

      disposableBonjourBradcast = rxBonjour.newBroadcast(broadcastConfig)
              .onErrorComplete { throw ConnectionException(it) }
              .subscribeOn(Schedulers.io())
              .subscribe()

It is work ok.

But when i try to unsubscribe for re -register service for example to pull to-refresh by this :

disposableBonjourBradcast.dispose()

My screen became freeze some during milliseconds. In logcat i see terrible message:

I/Choreographer: Skipped 119 frames! The application may be doing too much work on its main thread.

[mannodermaus]

Thanks for reporting. I'm assuming you're using version 2.0.0-RC1 of the library? What Driver do you use? Could you use the performance monitors to pin-point what methods might cause this lag?
I know that tearing down a JmDNS instance on disposal is quite costly, but that work is already supposed to be deferred to an I/O thread.

[SergeyBurlaka]

Use "de.mannodermaus.rxjava2:rxbonjour:2.0.0-RC1" version
Use JmDNS

private val rxBonjour: RxBonjour = RxBonjour.Builder() .driver(JmDNSDriver.create()) .platform(AndroidPlatform.create(MyApplication.getInstance())) .create()
As for performans i can show screen:

I hope this may help you

[mannodermaus]

Thank you for the information! Looks like indeed the library's deferring of the JmDNS instance teardown isn't working as expected in your case. JmDNS#close() taking a long time to complete isn't necessarily an issue with RxBonjour, but rather related to how it's written in JmDNS (related issue: jmdns/jmdns#82). I'll review why the computation thread assigned to that work blocks the main thread.

To be assured of this, can you place a breakpoint into JmDNSBroadcastEngine on line 37 (the body of the Completable used to close the JmDNS instance, inside the teardown() method)? I'll try to reproduce the issue as well.