So, to be a good memory-wise citizen:1. If there is only one outlet to a top-level object from the nib owner, the outlet should have "assign" attribute, and the nib owner is now in fact the "initial 1 retention"(which seems reserved right for this predictable ownership)'s owner so is responsible for the releasing. Otherwise if the outlet uses "retain" logic, there will be a redundant retention to the top-level object so a memory leak. 2. If there are other outlets to a top-level object from other objects, they should use the "retain" logic to claim their share of ownership. 3. Outlets to non-top-level objects should always use the "retain" logic if they want to claim their ownership, since there are no reserved initial retain count for them.
Am I getting it all right? On Wed, Oct 21, 2009 at 11:55 AM, Graham Cox <graham....@bigpond.com> wrote: > > On 21/10/2009, at 2:40 PM, an0 wrote: > > Who owns the unarchived top-level objects' initial positive retain count? >> > > Nobody. That's what "no owning object" means. > > Are they retained for outlet connections? >> > > No, because if there is an outlet to them then they are owned. > > Or are they just not autoreleased only because they are top-level, >> regardless of whether there are any outlet connected to them? >> > > > They are not autoreleased because that would presumably cause problems for > the users of these objects, who don't own them either. If there's an outlet > to them, they are owned by whoever declares the outlet. > > As it says, "Your code is responsible for releasing these top-level > objects". > > This is not the big issue it seems. Most nibs don't contain top level > objects with no owners. For the very few that do, the objects most likely > leak but typically that's no big deal unless you're loading the same nib > repeatedly many times. > > --Graham > > > -- Hell boy is cool, but let me be healthy boy first. _______________________________________________ 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
