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Re: confused about allocating and releasing objects
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Re: confused about allocating and releasing objects


  • Subject: Re: confused about allocating and releasing objects
  • From: Graham Cox <email@hidden>
  • Date: Wed, 27 Aug 2008 21:22:31 +1000


On 27 Aug 2008, at 9:13 pm, Memo Akten wrote:

At the start of the plugin (in enableExecution) I use the code:

- (void) loadCardXMLData {
NSString *dataPath = @"/data.plist";
cardsLoadedData = [NSDictionary dictionaryWithContentsOfFile: dataPath];
// cardsLoadedData = [[NSDictionary alloc] initWithContentsOfFile: dataPath];
if(cardsLoadedData) {
NSLog(@"*** SUCCESSFULLY LOADED %@", dataPath);
} else {
NSLog(@"*** COULD NOT LOAD %@", dataPath);
}
}


If I use the convenience route (with no release in disableExecution) I get a freeze (I need to force quit QC) as soon as I enable the plugin. If I use the alloc route (and release in disableExecution) everything works fine. Is this normal behaviour? or could it be QC related?



Just thinking aloud, but I wonder if the plug-in is being executed outside of the app's autorelease pool stack? The freeze could be because autorelease is being called but there's no pool available. You could try adding a pool to the top of the code to see if it stabilises it, e.g. on the first line of the above:


NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

If that turns out to be the case, you may need to move your code elsewhere within the plugin (I'm not familiar with the plug-in system in Cocoa so I'm not sure what you should be doing here) or else set up a pool on entry.

hth,

Graham
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  • Follow-Ups:
    • Re: confused about allocating and releasing objects
      • From: "Sherm Pendley" <email@hidden>
References: 
 >confused about allocating and releasing objects (From: Memo Akten <email@hidden>)
 >Re: confused about allocating and releasing objects (From: "Jonathan del Strother" <email@hidden>)
 >Re: confused about allocating and releasing objects (From: Memo Akten <email@hidden>)

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