That's interesting. 

So, how would one go about checking to see whether or not SMJobBless needed to 
be called?

I suppose one would need to check the version number of the installed job vs. 
the one in the application package. 

I also suppose one would also try to connect with the helper tool and, if that 
fails, then call SMJobBless.



On Sep 30, 2011, at 1:40 PM, Kyle Sluder wrote:

> On Sep 30, 2011, at 10:05 AM, Eric Gorr <mail...@ericgorr.net> wrote:
> 
>> On Sep 30, 2011, at 1:00 PM, Jean-Daniel Dupas wrote:
>> 
>>> As I understand it, you have to bless the job only once, not at each 
>>> launch, so you shouldn't have to request the authorization each time.
>> 
>> It would be interesting if that is how it actually works, but I am quite 
>> certain it doesn't work that way.
> 
> It does. SMJobBless submits a blessed plist to launchd. It does not do 
> one-off jobs. You use once it to install a privileged launchd task that you 
> can talk to in the future.
> 
> --Kyle Sluder

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