Re: Relaunching an application

FROM : Mattias Arrelid
DATE : Mon Mar 03 18:18:34 2008

On 3 mar 2008, at 18.14, Nir Soffer wrote:

> On Mar 3, 2008, at 18:24, Mattias Arrelid wrote:
>

>> I have an application that I need to restart.

>
> Why do you want to do that?


A scenario could be that the entire contents of the .app bundle has 
been replaced with new stuff (e.g. the case with Sparkle).

>> An easy way to do this could be:
>>
>> [[NSWorkspace sharedWorkspace] launchApplication:executablePath];
>> [NSApp terminate:self];
>>
>> The problem is that the above solution results in confusion in the 
>> system dock; sometimes the original application does manage to quit 
>> before the new instance, other times not. If it does NOT manage to 
>> quit before the new one is launched, the dock ends up with two 
>> icons for my application; one that indicates that the application 
>> is launched, another one that's indicates that it's not launched. 
>> This is NOT good.
>>
>> I've seen other programs in need of a restart (e.g. the Sparkle 
>> framework) using a separate helper application that simply checks 
>> whether the original process has quit properly before re-launching 
>> it. This sure does work, but it isn't a pretty solution.

>
> Seems pretty to me. You want use a separate process to make this 
> work reliably.


It works, but I'd say it was prettier if there was a framework call to 
accomplish this.

Regards
Mattias