Re: crash in NSPathUtilies / UserDefaults (from PikoPixel)

[Riccardo Mottola]

Hi,

On 2015-10-23 19:21:48 +0200 Josh Freeman 
<address@hidden> wrote:

> Hi Riccardo,
>
>     From the stack trace, it looks like the recursion begins with the 
>  call to 
> [NSObject respondsToSelector: selector] in 
> PPAppBootUtils_PerformNSObjectSelectorAfterAppLoads() 
> (PPAppBootUtilities.m:42).
>
>     Apparently on NetBSD, +load methods are called earlier in the 
> app- bootup 
> process than on Linux & Mac - on those platforms, I hadn't seen  any 
> issues 
> from calling respondsToSelector: in +load.
>
>     This'll be fixed in the next release of PikoPixel by delaying the 
> respondsToSelector: check until after the app loads. In the meantime, 
>  you 
> can probably get PikoPixel to run on NetBSD by commenting out the  
> selector 
> check (PPAppBootUtilities.m, lines 42-49):

As both Richard and David suggest - you should do less stuff in +load 
if possible. Moving to +initialize might help.
Of course you can't do that with categories, but it is much better 
supported. I tried looking up +load and +inizialize and apparently... 
+load is asking for trouble, it is called very early.


> /*
>      if (!selector || ![NSObject respondsToSelector: selector])
>      {
>          NSLog(@"ERROR: Invalid NSObject selector, %@, in "
>                  "PPAppUtils_PerformNSObjectSelectorAfterAppLoads()",
>                  (selector) ? NSStringFromSelector(selector) : 
> @"NULL");
>
>          goto ERROR;
>      }
> */

I will try that on NetBSD next week, so we see if that helps. My goal 
is actually to check menus and the patch of Fred :)

Riccardo