[PATCH] Re: Make SIGHUP singal handler equivalent to SIGTERM and SIGINT.

Nicolas Sebrecht nicolas.s-dev at laposte.net
Mon Jul 30 17:46:26 BST 2012


On Sat, Jun 09, 2012 at 01:10:32PM +0200, Nicolas Sebrecht wrote:
> On Tue, Jun 05, 2012 at 04:04:10AM +0100, Dmitrijs Ledkovs wrote:
> 
> > offlineimap has several frontends that encourage running it from a
> > terminal under an X session. When X session closes for a system
> > shutdown, the terminals exit, after sending SIGHUP to their children.
> > 
> > Previously SIGHUP was treated to be equivalent to SIGUSR1, i.e. wake
> > up and sync all accounts. This causes delays during shutdown.
> > 
> > According to Wikipedia [0], SIGHUP has been repurposed from a
> > historical meaning to one of:
> >  * re-read configuration files, or reinitialize (e.g. Apache, sendmail)
> >  * controlling pseudo or virtual terminal has been closed
> > 
> > I believe second meaning is more appropriate for offlineimap, and
> > hence this patch makes SIGHUP to be handled in the same way SIGTERM
> > and SIGINT are handled.
> > 
> > This patch also adds documentation of the current handling of
> > SIGTERM/SIGINT/SIGHUP signals.
> > 
> > [0] http://en.wikipedia.org/wiki/SIGHUP
> 
> Looks ok to me except that users might rely on this signal from script.
> I think it's worth to warn about this change in the changelog.

Taken to pu, anyway.
Thank you.

-- 
Nicolas Sebrecht




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