Re: Snow Leopard: unsupported PointerFunctions configuration was requested
Re: Snow Leopard: unsupported PointerFunctions configuration was requested
- Subject: Re: Snow Leopard: unsupported PointerFunctions configuration was requested
- From: Kai Brüning <email@hidden>
- Date: Sun, 11 Oct 2009 19:51:01 +0200
On 10.10.2009, at 13:56, Chris Idou wrote:
Below is the RegexKit code that causes the Snow Leopard error. After
reading the doco, I don't feel very enlightened about what the
unsupported configuration is, or what the solution might be. Can
anyone give me a clue?
Sure: replace NSPointerFunctionsIntegerPersonality by
NSPointerFunctionsIntegerPersonality | NSPointerFunctionsOpaqueMemory.
Best
Kai
+ (void)load
{
RKAtomicMemoryBarrier(); // Extra cautious
if(RKCacheLoadInitialized== 1) { return; }
if(RKAtomicCompareAndSwapInt(0, 1, &RKCacheLoadInitialized)) {
if((cacheMapKeyCallBacks= dlsym(RTLD_DEFAULT,
"NSIntegerMapKeyCallBacks")) == NULL) { cacheMapKeyCallBacks= dlsym
(RTLD_DEFAULT, "NSIntMapKeyCallBacks"); }
#ifdef ENABLE_MACOSX_GARBAGE_COLLECTION
id garbageCollector = objc_getClass("NSGarbageCollector");
if(garbageCollector != NULL) {
if([garbageCollector defaultCollector] != NULL) {
id pointerFunctions = objc_getClass("NSPointerFunctions");
RKCacheIntegerKeyPointerFunctions = [pointerFunctions
pointerFunctionsWithOptions:NSPointerFunctionsIntegerPersonality];
RKCacheIntegerKeyPointerFunctions.acquireFunction =
intPointerFunctionsAcquire;
RKCacheIntegerKeyPointerFunctions.descriptionFunction =
intPointerFunctionsDescription;
RKCacheIntegerKeyPointerFunctions.hashFunction =
intPointerFunctionsHash;
RKCacheIntegerKeyPointerFunctions.isEqualFunction =
intPointerFunctionsIsEqual;
RKCacheIntegerKeyPointerFunctions.relinquishFunction =
intPointerFunctionsRelinquish;
RKCacheIntegerKeyPointerFunctions.sizeFunction =
intPointerFunctionsSize;
RKCacheObjectValuePointerFunctions = [pointerFunctions
pointerFunctionsWithOptions:(NSPointerFunctionsZeroingWeakMemory|
NSPointerFunctionsObjectPersonality)];
[[garbageCollector defaultCollector]
disableCollectorForPointer:RKCacheIntegerKeyPointerFunctions];
[[garbageCollector defaultCollector]
disableCollectorForPointer:RKCacheObjectValuePointerFunctions];
}
}
#endif // ENABLE_MACOSX_GARBAGE_COLLECTION
}
}
________________________________
From: Bill Bumgarner <email@hidden>
To: Chris Idou <email@hidden>
Cc: email@hidden
Sent: Thu, 24 September, 2009 12:36:04 PM
Subject: Re: Snow Leopard: unsupported PointerFunctions
configuration was requested
On Sep 23, 2009, at 7:09 PM, Chris Idou wrote:
Very early in application startup, even before main() is called, I
get the following error:
2009-09-24 12:07:11.462 MyApp[5534:a0f] *** An unsupported
PointerFunctions configuration was requested, probably for use by
NSMapTable, NSHashTable, or NSPointerArray. The requested
configuration fails due to integer personality not using opaque
memory
It happens twice on startup, and below are the stack traces when it
happens:
What does it all mean?
#0 0x7fff84b342f7 in NSLog
#1 0x7fff84ac84d1 in +[NSConcretePointerFunctions
initializeSlice:withOptions:]
#2 0x7fff84aea796 in -[NSConcretePointerFunctions
initWithOptions:]
#3 0x7fff84aea74d in +[NSPointerFunctions
pointerFunctionsWithOptions:]
#4 0x10004b633 in +[RKCache load]
One change to the NSPointerFunction based collection classes (which
support a number of things that NSArray & the like do not) between
Leopard and Snow Leopard was to tighten up the validation of the
pointer function validation such that a handful of non-sensical
configurations are detected that weren't before.
I.e. RKCache is trying to create a set of pointer functions that
doesn't make sense (and for whose behavior is undefined).
As someone else pointed out, RK is most likely RegexKit and, thus,
the source is available and can be fixed. Given the relatively
common use of RK*, please provide a patch to the author so it can be
fixed upstream.
b.bum
__________________________________________________________________________________
Get more done like never before with Yahoo!7 Mail.
Learn more: http://au.overview.mail.yahoo.com/
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden