[Lazarus] Finding out how a program's being terminated

[waldo kitty]

On 2/17/2013 04:06, Mark Morgan Lloyd wrote:
> waldo kitty wrote:
>> On 2/16/2013 08:30, Hans-Peter Diettrich wrote:
>>> Procedures even may be different for Linux and Windows, depending on the
>>> signal/message types. Even if a program can ignore SIGTERM, can it also inform
>>> the system that it doesn't *want* to close? On Windows a program can stop an
>>> shutdown, maybe not on other platforms.
>>
>> i have exactly this problem to deal with on *nix... my app needs to be allowed
>> to complete its shutdown closeout procedures or there are problems on the next
>> boot when it is started up... on shutdown, app managed data is removed from a
>> living data file to another file for restoration on startup... this takes
>> longer than 5 seconds and it hurts at times when the system sigkills the app :/
>
> /Why/ is it taking longer than five seconds? Are you using the iptables program
> to manipulate individual rules, or going directly to the API?

because there may be several thousand rules to save, for one thing... other than 
that, i can't go into any more of the specifics because it is too far afield 
from pascal and/or lazarus... i was only interested in if there was a solution 
to delay shutdown until a process has actually completed its shutdown tasks...