Difference between sessionOpened and sessionCreated

[Germán Borbolla Flores]

Hi,

As part of a server I'm working on I need to filter incoming connection 
based in a number of criteria.

I don't know where to put it, in IoFilter.sessionCreated or in 
IoFilter.sessionOpened, I've checked BlacklistFilter and the connection 
is validated in both methods, do I have to this?

For future reference, which method is first called?

Thanks,

Germán