How to solve Memory leaks in Lib Xml Parser in objective-C where the list is returned?
- by Madan Mohan
Hi Guys,
I got leaks in Lib Xml Parser while retrieving the data from the net,
Here in the below code, I have allocated the list
- (void)getCustomersList
{
// make an operation so we can push it into the queue
SEL method = @selector(parseForData);
NSInvocationOperation *op = [[NSInvocationOperation alloc] initWithTarget:self selector:method object:nil];
customersTempList = [[NSMutableArray alloc] initWithCapacity:20];// allocated list
[self.retrieverQueue addOperation:op];
[op release];
}
// return each recode
// in parser .m class one of the condition in endElement where it shows a leak.
else if(0 == strncmp((const char *)localname, kCustomerElement, kCustomerElementLength))
{
[customersTempList addObject:customer];
printf("\n no of objects in temp list:%d", [customersTempList count]);
if ([customersTempList count] == 20)
{
NSMutableArray* argsList = [customersTempList copy];//////////////////////here it is showing leak.
printf("\n Calling reload data with %d new objects", [argsList count]);
SEL selector = @selector(parser:addCustomerObject:);
NSMethodSignature *sig = [(id)self.delegate methodSignatureForSelector:selector];
if(nil != sig && [self.delegate respondsToSelector:selector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:sig];
[invocation retainArguments];
[invocation setTarget:self.delegate];
[invocation setSelector:selector];
[invocation setArgument:&self atIndex:2];
[invocation setArgument:&argsList atIndex:3];
[invocation performSelectorOnMainThread:@selector(invoke) withObject:NULL waitUntilDone:NO];
}
[customersTempList removeAllObjects];
}
}
// returned the list after all the records are stored in the list
else if(0 == strncmp((const char *)localname, kCustomersElement, kCustomersElementLength)) {
printf("\n Calling reload data with %d new objects", [customersTempList count]);
NSMutableArray* argsList = [customersTempList copy];
printf("\n Calling reload data with %d new objects", [argsList count]);
SEL selector = @selector(parser:addCustomerObject:);
NSMethodSignature *sig = [(id)self.delegate methodSignatureForSelector:selector];
if(nil != sig && [self.delegate respondsToSelector:selector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:sig];
[invocation retainArguments];
[invocation setTarget:self.delegate];
[invocation setSelector:selector];
[invocation setArgument:&self atIndex:2];
[invocation setArgument:&argsList atIndex:3];
[invocation performSelectorOnMainThread:@selector(invoke) withObject:NULL waitUntilDone:NO];
}
[customersTempList removeAllObjects];
}
}
please help me out of this,
Thanks,
Madan.
