Re: Catching Cocoa application Crash
Re: Catching Cocoa application Crash
- Subject: Re: Catching Cocoa application Crash
- From: "parag vibhute" <email@hidden>
- Date: Fri, 8 Feb 2008 18:30:31 +0530
Ok. Following is what I am doing in my code:
1. I have created a named pipe in /tmp folder.
2. My requirement is to remove it when my application quits.
3. Imp. thing is my application runs in user session & can't be launched
using lauch agent.
4. I selected /tmp folder bcoz if user shutdowns abruptly then on next
reboot, /tmp folder gets cleared.
5. But in same user session, suppose if my application gets crashed then
that file does not get deleted.
So want to trap the application crash.
Thanks,
Palav
On Feb 8, 2008 5:44 PM, Nir Soffer <email@hidden> wrote:
>
> On Feb 8, 2008, at 10:37, parag vibhute wrote:
>
> > I have developed a cocoa application. On termination of that
> > application, I
> > am performing some task(deleting a file). For this I have implemented
> > applicationshouldterminate delegate which gets called when user
> > quits the
> > application properly.
> >
> > But there are certain times when that application gets crashed. My
> > question
> > is can we trap this application crash event so that I can perform
> > that task?
>
> You cannot do anything when you crash or someone kill you. Even if
> you can is some cases, your cleanup may fail.
>
> The best solution in this case would be to open that file and
> immediately unlink it. You can continue to read and write to the
> file, and it will disappear when you process is gone.
>
> Other more complicated options:
>
> - Run your app behind a watchdog process, responsible for cleanup. In
> this case, it does not matter how you exit, cleanup is always done
> correctly. Except the case when the watchdog itself crash or killed.
>
> - Do the cleanup on startup if the app did not exit cleanly. For
> example there is a key in your preferences
> "ApplicationCrashedAfterRelaunch" that the system seems to set. You
> can also have your own key that
>
> You probably need to give more details to get the best solution for
> your specific use case.
>
>
> Best Regards,
>
> Nir Soffer
>
>
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will catch your heart....pursue those'.
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