Re: GNUstep and session management

[Richard Frith-Macdonald]

On 2005-10-06 10:36:47 +0000 Chris Vetter <cbv@gmx.net> wrote:

> On Thu, 06 Oct 2005 08:58:44 +0000, Richard wrote:
> > On 2005-10-06 07:53:48 +0000 Roman Belenov <rbelenov@yandex.ru> wrote:
> > > 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.
>
> What about using -launchedApplications in NSWorkspace, then step through
> each item of the array and send an explicit -terminate: to it?

If we modified the code so that the applications would respond to a 
-terminate message (or some other termination message) from the workspace 
manager that would work.  Messages sent to an application (except for 
services messages) currently go to the delegate of the NSApplication 
instance rather than to the NSApplication instance itsself.  That was a 
security measure to stop arbitrary processes connecting to your applications 
and taking control of them.