Release: serverino - please destroy it.

[Andrea Fontana]

On Sunday, 15 May 2022 at 06:37:08 UTC, frame wrote:
> On Saturday, 14 May 2022 at 23:23:47 UTC, Andrea Fontana wrote:
>
>> Which kind of socket exception could be triggered by a client?
>>
>> Andrea
>
> It doesn't matter if triggered by a client or not, you need to 
> deal with the possibility. A closed/destroyed socket is an 
> invalid resource.
>
> I recently had the scenario on Windows where a client crashed 
> and the socket wasn't closed properly somehow. Now the server 
> adds the socket to the set to see an update - boom! "Socket 
> operation on non-socket" error.
>
> Also accepting sockets can throw, for eg. by a stupid network 
> time out error - not only on Windows. Other socket operations 
> are no exceptions either.
>
> `isAlive` is fine for properly shutdowned/closed sockets by you 
> or peer. But it doesn't protect you from faulting ones.

Ok, added some checks on .select, .accept, .bind, .listen.
Thank you.

Andrea