[fpc-devel] Death of TSQLConnection instance after connection interrupt

[Michael Van Canneyt]

On Sat, 18 Apr 2015, Чернов Дмитрий wrote:

> 
> 18.04.2015, 00:00, "Michael Van Canneyt" <michael at freepascal.org>:
>
>        On Fri, 17 Apr 2015, Чернов Дмитрий wrote:
>               17.04.2015, 20:36, "Michael Van Canneyt" <michael at freepascal.org>:
>
>                      On Fri, 17 Apr 2015, Чернов Дмитрий wrote:
>                             also one small question. will it be possibly to determine whether connection was closed by user or interrupted? and what about events
>             calling on
>                           interrupts?
>
>                      We can think about this. The problem with an interrupt is that you don't know when it happens.
>                      You only see it when you try to do something new.
>
>                      Michael.
>
>               I believe that additional boolean argument for BeforeDisconnection event, that will show us if disconnection was caused by interrupt, could be nice
>             solution.
>
>        That is not possible, it would break backwards compatibility.
>
>        Michael.
> 
>  
> oh, i'm sorry. forgot about it.
> maybe then it's better to add OnInterrupt event?

When do you want to call such a hypothetical event ? 
As I said, there is no good way to detect when it happens:

Only when you do a new operation and the call returns an error, 
you will know after examining the exact error (which is an unsure operation) if it was 'interrupted'.

Michael.