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Re: Immediate memory release
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Re: Immediate memory release


  • Subject: Re: Immediate memory release
  • From: Roland King <email@hidden>
  • Date: Wed, 30 Apr 2008 21:08:26 +0800

ok but why? I assume if this works that the NSImage alloc/ initWithContentsOfFile: is doing a retain/autorelease.

Of course that wouldn't violate the letter of the memory management documentation, which really just tells you that if you alloc/init an object, you are responsible for freeing it, I thought the spirit of it sort of implied that nobody else had retained/released the object and it wasn't sitting on someone's autorelease pool and as soon as you released it, it was gone.






On Apr 30, 2008, at 8:18 PM, Graham Cox wrote:

-(IBAction) Generate:(id) sender
{
	for (i = 0; i < count; i++)
	{
	    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

NSImage* tempSource = [[NSImage alloc] initWithContentsOfFile:sPath[i]];
// some code
[tempSource release];

[pool release];
}
}




hth, G.


On 30 Apr 2008, at 10:09 pm, Yannick De Koninck wrote:
I deleted everything that was between NSImage* tempSource = [[NSImage alloc] initWithContentsOfFile:sPath[i]; and [tempSource release]; so basically this is the code (sPath is a NSString array containing path names):
-(IBAction)Generate:(id)sender
{



for (i = 0; i < count; i++)
{
NSImage* tempSource = [[NSImage alloc] initWithContentsOfFile:sPath[i]];
[tempSource release];
}


}

And still the same problem occurs. So the problem is that the memory is not immediately released. You think this can be solved by using an autoreleasepool? I'm pretty new to cocoa programming and i never used autoreleasepools before.
Thank you very much, Yannick

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  • Follow-Ups:
    • Re: Immediate memory release
      • From: Graham Cox <email@hidden>
References: 
 >Immediate memory release (From: Yannick De Koninck <email@hidden>)
 >Re: Immediate memory release (From: Graham Cox <email@hidden>)
 >Re: Immediate memory release (From: "Paul Bailey" <email@hidden>)
 >Re: Immediate memory release (From: Yannick De Koninck <email@hidden>)
 >Re: Immediate memory release (From: Graham Cox <email@hidden>)

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