Re: Intercepting retain/release of object
Re: Intercepting retain/release of object
- Subject: Re: Intercepting retain/release of object
- From: Pierre Molinaro <email@hidden>
- Date: Wed, 19 Mar 2008 19:09:18 +0100
The retain method should return self object :
- (id) retain
{
unsigned int count = [self retainCount] + 1;
NSLog(@"RETAIN: retain count after retain is: %i", count);
return [super retain] ;
}
After calling [super release], the current object may not exist any
more; try:
- (void) release
{
unsigned int count = [self retainCount] - 1;
NSLog(@"RELEASE: retain count after release is: %i", count);
[super release];
}
- Pierre
Le 19 mars 08 à 18:54, Stuart Malin a écrit :
I am having some trouble in an app with an object and its retain
counts, so I added methods to intercept -retain and -release on my
affected object so I could set breakpoints to observe the value. But
doing so causes some really odd behavior, such as the object
receiving extra retain events (such as when it is _removed_ from an
array). Why would my intercepting these, but nonetheless propagating
them up the class hierarchy, cause problems?
- (void) retain
{
[super retain];
unsigned int count = [self retainCount];
NSLog(@"RETAIN: retain count after retain is: %i", count);
}
- (void) release
{
[super release];
unsigned int count = [self retainCount];
NSLog(@"RELEASE: retain count after release is: %i", count);
}
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