[launchd-dev] Why no key to "Run once on restart"

[Thomas Clement]

You should probably use "RunAtLoad" instead of "StartOnMount".

Thomas

On 24 mai 2011, at 00:15, Jerry Krinock wrote:

> It seems that a fairly popular trigger would be a job that runs once, when the computer is restarted or user logs in.  But I don't see a key for this in launch.plist(5).
> 
> To get that effect, I'm using the two keys StartOnMount + LaunchOnlyOnce.  The former does the job because a filesystem must be mounted when a computer restarts, and the latter keeps it from starting multiple times in case another filesystem is mounted before it exits.  This works, but is indirect and kludgey.
> 
> Is there a better way to do this?
> 
> The reason I want to do this is to restart a syncing task which may take a minute or so and thus could be interrupted by system shutdown.  When my task begins, it loads this new "standby" StartOnMount+LaunchOnlyOnce agent to re-run the same task when the system starts up.  But when my task ends normally, it unloads this agent.  Therefore it only ever spawns if my task was interrupted.
> 
> Thank you,
> 
> Jerry Krinock
> 
> _______________________________________________
> launchd-dev mailing list
> launchd-dev at lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/launchd-dev