Re: GNUstep and session management

[Richard Frith-Macdonald]

On 2005-10-06 07:53:48 +0000 Roman Belenov <rbelenov@yandex.ru> wrote:

> Richard Frith-Macdonald <richard@brainstorm.co.uk> writes:
>
> > When the session manage wishes to shut down (either for a logout or for the
> > machine shutting down), it should post an
> > NSWorkspaceWillPowerOffNotification to the workspace notificationCenter.
> > The workspace notification center sends that notification to all the
> > applications in the session, and they can respond by closing down cleanly.
>
> Is there a fallback for applications that don't explicitly observe this
> notification (like passing terminate: to NSApplication instance) ? What 
> about
> OpenStep or Mac OS X - do they have something like that ?

Not that I know of ... observing the notification seems to be the 'graceful' 
way to shut down.
Internally, an application receiving a power-off notification would usually 
call its own -terminate method to shut down, but you can't generally call 
that from outside the application.  So if an application ignores the power 
off notification, I guess you really have to  use the kill() system call to 
stop it in a less graceful manner.