[vdr] [RFC] Shutdown rewrite for 1.5.x

Udo Richter udo_richter at gmx.de
Wed Jan 24 18:49:10 CET 2007


Marko Mäkelä wrote:
> On Tue, Jan 23, 2007 at 10:19:57PM +0100, Udo Richter wrote:
>> Since the shutdown script runs in the background, the stdin could 
>> probably be closed. After all, VDR should continue to 'own' stdin, and 
>> running in the background would probably cause a conflict. However, 
>> running the script with a closed file handle may cause other side effects.
> 
> I can't think of any side effect.  The shutdown script is not supposed
> to be interactive, and system tools generally do not read stdin.

Well, strange things happen. I've had such a side effect on my runvdr 
extreme with a closed stdout, see here: (German)
http://www.vdr-portal.de/board/thread.php?postid=542948#post542948

In this case, printf on kanotix complained heavily on a closed stdout, 
and the only workaround was to replace >&- with the traditional >/dev/null.

> Are you planning to maintain the 1.4 branch of the patch?  If yes
> (and I hope so), can plugins use some #ifdef to see if
> Shutdown.IsUserInactive() is available?

For now I'll maintain it, currently the differences are only minor. 
Adding some #ifdef detection is a good idea, I'll add that for the next 
1.4 patch.

Cheers,

Udo




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