Bruno, > @property (nonatomic, retain) dispatch_queue_t *dispatchQueue;
Let's assume for a second that this worked. Since dispatch_queue_t is already typedef'd as a pointer "typedef struct dispatch_queue_s *dispatch_queue_t;". You've declared the property as a pointer to a pointer, which means that he would have to dereference that pointer in his class that has the property, every time he uses it. Secondly, dispatch_queue_t doesn't subclass NSObject, or implement the NSObject protocol, and therefore doesn't implement the -[retain] message. The auto-generated getter and setter would crash. -Jamie EDIT: re-sent to list. On Nov 2, 2011, at 8:02 AM, Bruno Berisso wrote: > Hi Andreas. > > I assuming that you aren't using ARC, right? > Be aware that the property declaration that you send doesn't retain anything. > The declaration should by: > > @property (nonatomic, retain) dispatch_queue_t *dispatchQueue; > > On Nov 2, 2011, at 9:52 AM, Andreas Grosam wrote: > >> I want to set a dispatch queue via a property. How should I set the >> property's attributes when the queue is retained/released via functions >> dispatch_retain() and dispatch_release()? >> >> Currently, since using "retain" is only possible for objects, I just declare >> it like follows: >> >> @property (nonatomic) dispatch_queue_t dispatchQueue; >> >> >> But here, the retain/release semantic isn't exposed. Any better ideas? >> >> >> >> _______________________________________________ >> >> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >> >> 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: >> http://lists.apple.com/mailman/options/cocoa-dev/bruno%40southlabs.net >> >> This email sent to br...@southlabs.net > > -- > SouthLabs | www.southlabs.com > Apple recommends SharePlus > > SharePlus: NOW for MAC !!! > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > 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: > http://lists.apple.com/mailman/options/cocoa-dev/jamiepinkham%40me.com > > This email sent to jamiepink...@me.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
