On Jun 3, 2008, at 2:06 PM, Antonio Nunes wrote:
On Jun 3, 2008, at 5:52 PM, Bill Bumgarner wrote:
Why can't you pause the program in Xcode? Because it is running in
Instruments?
Yes, I could find no way to pause it after Start with Performance
Tool->Leaks (or Object Allocations for that matter).
But then I realised I should attach the debugger to it in Xcode
after starting it with Instruments, and now I can pause the session.
Interestingly, when I do that and check the gc-roots and gc-
references info in the paused application, where ObjectAlloc claims
the CGPDFDocument is still in existence, the info command returns 0
roots and no references. Who do I believe?
It may be that the CGPDFDocument has been CFRetain'd by something in
the system somewhere and has not been released. It might be a bug
in the framework. If you can, file a bug with your app attached and
someone will have a look (send me the bug #).
You'll want the backtrace of all of the retains and releases on the
object to gain a clue as to what might be over-retaining.
(Yes, CFRetain/CFRelease still retain/release objects under GC. Not
suggested to do, but it happens between certain subsystems.)
b.bum
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