Re: musings on session service mgmt

[David Zeuthen <davidz redhat com>]

On Fri, 2008-01-04 at 17:23 +0100, Nils Philippsen wrote:
> On Fri, 2008-01-04 at 11:10 -0500, Colin Walters wrote:
> > On Fri, 2008-01-04 at 16:14 +0100, Nils Philippsen wrote:
> > 
> > > Not in the least, there are programs which are supposed to stay running
> > > even when you log out -- screen, vncserver, nohup'ed processes etc.
> > 
> > No one is talking about changing the semantics of "nohup".  
> 
> Perhaps I'm a bit slow, but how would it not do this if it relies on the
> inheritance of a previously non-existent environment variable that needs
> to be deleted if a process shall not be killed on session exit?

The way someone would opt out would be to do this

 unsetenv("XDG_SESSION_COOKIE");
 if (fork() <= 0)
   exit (1);

very early in the program.

       David