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Re: Unwanted retain
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Re: Unwanted retain


  • Subject: Re: Unwanted retain
  • From: Dustin Voss <email@hidden>
  • Date: Wed, 4 Feb 2004 17:55:31 -0800

On 4 Feb, 2004, at 4:46 PM, Lorenzo wrote:

Hi,
thank to everybody.
Thanks for explaining so well the timer retains the target object.
My error was that I released the timer within the dealloc object method.
This way:

- (void)dealloc
{
if(renderTimer){
[renderTimer invalidate];
[renderTimer release];
renderTimer = nil;
}

[super autorelease];
}

So when my superclass released my object, the object could have not been
deallocated properly.

Now I relase the timer using a different method like
[myObject relaseTimer];
[myObject release];

You still have the wrong idea. First, when an object is deallocated, it is NOT released from NSObject down. NSObject's dealloc method is the last one to get called. So it is not the superclass that deallocates your class, but rather it has to be your class that deallocates the superclass.

You do this by calling [super dealloc]. Don't call [super autorelease].

Also, do not call [renderTimer release]. [renderTimer invalidate] will take care of that for you. The documentation does not make this clear, though it should.

If you do this, I think you'll find that you don't need a separate releaseTimer method.
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  • Follow-Ups:
    • Re: Unwanted retain
      • From: Lorenzo <email@hidden>
    • Re: Unwanted retain
      • From: "b.bum" <email@hidden>
References: 
 >Re: Unwanted retain (From: Lorenzo <email@hidden>)

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