UDP debugging

[mucaho]

Hi

I wrote a very simple utility to test my UDP communication in java. Browsing the web I found only theoretical simulators or a whole bunch of live linux cds which transform the whole host machine into an emulator.

Java Wan Emulator

Would you have any use for this?

[NathanSweet]

It's neat. Would you want it included in KryoNet under the New BSD license?

Have you seen Listener.LagListener in KryoNet? Not the same thing but related.

[mucaho]

Oh nice. Didn't see the Listener.LagListener.

I like to use UDP so I'm sticking to JGN for the time being, as it promises reliable in-order delivery of UDP messages (there are no other simple Java network frameworks I know about which do that). However after running a few tests with the Emulator I'm not so confident about that any more. Seems like I will have to write my own UDP reliability control.

On topic: As you said, they are very similar:

• The LagListener sits on the EndPoint so you do not have to reroute all communication through the Emulator address.
• I'm unsure if KryoNet updates it's connection logic before notifying the listeners. If that's the case then the lag introduced by the Emulator would also affect KryoNet's inner workings in addtion to the application that listens for messages.

If KryoNets inner workings are also implemented as Listeners, then I see really no benefit by having the emulator. You could simulate packet loss also in the LagListener if you wanted.

On the other hand if you think this would be a nice utility to have, i'm all for the inclusion into KryoNet. I just change the license to the New BSD license and you copy paste the class into your project or how does that work?

[mucaho]

I just switched to KryoNet and due to the DatagramSocket.connect on the client I can't get the emulator to work with KryoNet. Closing the issue, I will extend LagListener for my purposes.