B4J Question jServer - detect websocket disconnect

[tohtics]

I followed the instructions in https://www.b4x.com/android/forum/t...onnected-event-doesnt-fire.79410/#post-503361 , but it didnot work. I have some small factors computers with ubuntu, if i turn them off, no closing the application client, the server detect the disconnection after 15-20 minutes.

How can i, the jserver, detected clients disconections as soon as posible?
Regards

 

[Erel]

You can send "ping" messages from the clients and close the connection if no ping was received on the server after a few seconds.

 

[tohtics]

That is my plan "B", is there something as a Plan "A"?, if no, thanks anyway.

 

[alwaysbusy]

Maybe you can play with some settings of jServer (after the jServer.start)

...
srvr.Start

Dim joServer As JavaObject = srvr
   
Dim secs As Long = 60 ' must be defined as a long, else you get a 'java.lang.RuntimeException: Method: setIntervalSec not matched.' error
joServer.GetFieldJO("context").RunMethodJO("getSessionHandler", Null).RunMethodJO("getSessionIdManager", Null).RunMethodJO("getSessionHouseKeeper", Null).RunMethod("setIntervalSec", Array As Object(secs))
   
Dim jo As JavaObject = srvr
Dim connectors() As Object = jo.GetFieldJO("server").RunMethod("getConnectors", Null)
Dim timeoutMs As Long = 5*1000
For Each c As JavaObject In connectors
       c.RunMethod("setIdleTimeout", Array(timeoutMs))
Next