[launchd-dev] ~/LaunchAgent + KeepAlive=true = Login Jail
Dave Zarzycki
zarzycki at apple.com
Fri Jan 25 11:14:05 PST 2008
Please file a bug:
http://bugreport.apple.com/
Thanks!
davez
On Jan 25, 2008, at 10:21 AM, James Bucanek wrote:
> Greetings,
>
> I have a user launch agent (~/Library/LaunchAgents) that has
> KeepAlive set to true. The launch agent is a Cocoa application,
> UIElement=YES. It provides a small status window to the user.
>
> I want this application to run all of the time, which is why the
> KeepAlive property was set. Whenever my application quits, launchd
> restarts it (as one would expect). The problem is that when the user
> tries to log out, the agent quits, launchd immediately restarts it,
> and the user gets a nasty message that the logout/restart/shutdown
> was canceled by my application.
>
> [There's clearly an amusing race condition: Once it's down to the
> Finder, launchd, my application and maybe one or two other small
> applications, the system manages to log out by killing my app and
> launchd before launchd has a chance to restart my application again.]
>
> Anyway, is there a workaround for this or do I just have to abandon
> KeepAlive?
>
> --
> James Bucanek
>
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