Hi,
Calling -[NSObject release] is almost never a guarantee that your
object will be deallocated. By releasing tempSource in your code
you're simply stating that you no longer need that object and that
Cocoa can free up the memory taken by the object **when appropriate**
(i.e., when nobody else is holding on to (retaining) the object). We'd
have to know what you're doing in between object creation and release,
as your tempSource instances are probably being retained inside some
other method that you're calling and then autoreleased, causing them
to only be dealloc'ed when the NSAutoreleasePool instance managed by
the event loop gets drained/released.
--
João Pavão
On 2008/04/29, at 12:30, Yannick De Koninck wrote:
Hi everybody,
I am writing an application where, at some point in time, the user
clicks a button and for a great amount of images the average pixel
values are calculated and stored in an array.
Basically this looks like this:
-(IBAction)Generate:(id)sender
{
// some code
for (i = 0; i < count; i++)
{
NSImage* tempSource = [[NSImage alloc]
initWithContentsOfFile:sPath[i]];
// some code
[tempSource release];
}
}
When debugging with ObjectAlloc i found that the memory release does
not happen when the release message is sent but only after the
Generate function is done. So instead of allocating, deallocating,
allocating, deallocating... the application keeps allocating memory
and only releases it afterwards. This becomes a big problem when the
amount of loaded pictures rises. Is there a way to force the memory
manager to free the memory when the release message is sent instead
of after the call? Or can i solve this problem in another way?
Thank you very much,
Yannick, Belgium
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