Re: Relaunching an application

FROM : Jean-Daniel Dupas
DATE : Mon Mar 03 18:29:42 2008

Le 3 mars 08 à 18:18, Mattias Arrelid a écrit :

> 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.



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