Problem with initctl stop

[Eric Huang]

Hi Steve,

Thanks for the quick reply.

I believe I properly set up my conf using expect daemon (I followed the
instructions on upstart for counting forks).

initctl status emacs
emacs start/spawned, process 19451

Maybe it's also worth pointing out that when I run initctl start emacs, it
spawns emacs correctly but hangs.

I know initctl is tracking the correct pid of emacs daemon because when I
kill the daemon externally, initctl recognizes that the process has died (I
provided output of that in the previous post).

For reference, here is my full script

# emacs --daemon - Emacs daemon
#
# The Emacs daemon provides a server for Emacs clients.
description "Emacs daemon"

start on runlevel [2345]
stop on runlevel [!2345]

expect daemon
#respawn
#respawn limit 10 5 # respawn up to 10 times, waiting 5 seconds each time

pre-start script
    echo "Starting emacs daemon..." >> /home/eric/Desktop/emacs.log
end script

pre-stop script
    echo "Killing emacs daemon..." >> /home/eric/Desktop/emacs.log
    exec /usr/bin/sudo -u eric /usr/bin/emacsclient -n -e '(kill-emacs)'
end script

exec start-stop-daemon --start --chuid eric --exec /usr/bin/emacs --
--daemon -u eric

Thanks,
Eric


On Fri, Oct 4, 2013 at 12:50 AM, Steve Langasek
<steve.langasek at ubuntu.com>wrote:

> Hi Eric,
>
> On Fri, Oct 04, 2013 at 12:27:17AM -0400, Eric Huang wrote:
> > I am trying to write an upstart script that will start and gracefully
> > shutdown emacs with my system. However, initctl stop emacs does not work.
>
> > Basically, when I run initctl stop emacs:
>
> > dmesg only shows
> >     [ 4363.589893] init: emacs goal changed from stop to start
>
> > on ctrl-c of initctl stop emacs, ps aux | grep emacs shows
> >     eric 13008 14.5 0.0 291228 29200 ? Ssl 23:46 0:01 /usr/bin/emacs
> > --daemon -u eric
>
> > indicating that it never killed the daemon
>
> What does 'status emacs' show from the commandline?  I believe you will
> find
> that, because emacs has daemonized (meaning the foreground process has
> exited), upstart assumes that the service has exited, and the running emacs
> process is not being tracked.
>
> Fixing this should be as simple as adding 'expect fork' to your upstart
> job,
> to let upstart know to expect emacs to detach from the foreground.
>
> Hope that helps,
> --
> Steve Langasek                   Give me a lever long enough and a Free OS
> Debian Developer                   to set it on, and I can move the world.
> Ubuntu Developer                                    http://www.debian.org/
> slangasek at ubuntu.com                                     vorlon at debian.org
>
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