Howto catch SocketOSException?

[Jolly James via Digitalmars-d-learn]

On Sunday, 26 March 2017 at 21:57:29 UTC, Jolly James wrote:
> On Sunday, 26 March 2017 at 18:50:13 UTC, bauss wrote:
>> [...]
>
> If you want try to help me, mabye this helps you:
> https://github.com/CyberShadow/ae/blob/master/net/asockets.d#L1237

Finally found the bug: I had a logical error in the way how I 
used this code.