[GRASS-dev] [bug #4757] (grass) lib/gis/done_msg.c fails

[Markus Neteler]

On Wed, Jun 28, 2006 at 06:12:07PM +0100, Glynn Clements wrote:
> 
> Request Tracker wrote:
> 
> > this bug's URL: http://intevation.de/rt/webrt?serial_num=4757
> > -------------------------------------------------------------------------
> > 
> > Subject: lib/gis/done_msg.c fails
> > 
> > grass obtained from: CVS
> > grass binary for platform: Compiled from Sources
> > 
> > Hi,
> > 
> > both getlogin() and G_whoami() fail in lib/gis/done_msg.c.
> > It is not clear to me why these functions are needed at all.
> 
> I suspect that it's to handle the situation where you start a job in
> the background, log out, someone else logs in, your background job
> completes and writes the completion message to the terminal.
> 
> This doesn't actually work on Linux, but I can't find any
> documentation which addresses this situation. There isn't any
> fundamental reason why a process which has a descriptor for the
> terminal can't continue to use the terminal after you've logged out.
> 
> The code in G_done_msg() checks whether the user running the process
> (as determined by G_whoami()) is the same as the user who is listed in
> the utmp file as being logged in on the terminal.
> 
> IMHO, getting rid of that check is unlikely to have any adverse
> consequences in real use.
>

Glynn,

not sure if I interprete your opinion correctly:
Approval for the proposed minimization of lib/gis/done_msg.c?

thanks
  Markus