Re: CFNetworking and ARC (was: ARC conversion help - CFErrorRef* and NSError**)
Re: CFNetworking and ARC (was: ARC conversion help - CFErrorRef* and NSError**)
- Subject: Re: CFNetworking and ARC (was: ARC conversion help - CFErrorRef* and NSError**)
- From: Rick Mann <email@hidden>
- Date: Tue, 30 Oct 2012 19:16:25 -0700
On Oct 30, 2012, at 17:27 , Roland King <email@hidden> wrote:
> I must be missing something here. Why can't you just set up your CFSocketContext with CFRetain for the CFAllocatorRetainCallback, CFRelease for the CFAllocatorReleaseCallback and cast the object to the (void*)info paramter with (__bridge void*)yourObject when you put that into the CFSocketContext. Job done, the CFSocket code will call CFRetain() for you during CFSocketCreateConnectedToSocketSignature(), which will retain it before ARC releases the original, and will call CFRelease() when the socket deallocs.
>
> You don't want CFBridgingRetain() here because you aren't passing ownership to Core Foundation, you're just giving it the object and it's taking ownership and releasing it again via the retain and release methods you've told it to use in CFSocketContext.
One thing that's not clear in the docs for CFSocketCreateConnectedToSocketSignature() is what happens to the CFSocketSignature parameter. Is that information copied immediately, or should it persist? is the supplied CFDataRef retained? The docs are clear about the context parameter, but not this one.
--
Rick
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