Leaks in NSURLConnection - ios

Question

I have googled a lot and read a lot about the leaks issue with NSURLConnection, but none of them gives a definite answer as to what is the solution to overcome these leaks.
I create an asynchronous connection and every time the connection is established, I get a GeneralBlock-3584 leak. Sometimes the responsible library is shown to be Foundation [NSThread start] frame. Some instances of GeneralBlock-3584 have CFNetwork HostLookup_Master::HostLookup_Master(__CFString const*, InheritEnum<_ExtendedHostInfoType, CFHostInfoType>, __CFHost*, CFStreamError*) as responsible frame.
I tried setting NSURLCache size to 0 as suggested by some. Howvever, even that doesn't work.
Here is what my connector class looks like:
-(void) connectToUrl:(NSString*)urlStr withDelegate:(id)theDelegate{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
urlStr = [urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:urlStr];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"GET"];
[request setValue:#"application/xml" forHTTPHeaderField:#"Content-Type"];
self.delegate = theDelegate;
[[NSURLCache sharedURLCache] setMemoryCapacity:0];
[[NSURLCache sharedURLCache] setDiskCapacity:0];
[NSURLConnection connectionWithRequest:request delegate:self];
[pool release];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
if(xmlResponse == nil){
xmlResponse = [[NSMutableString alloc] initWithData:data encoding:NSISOLatin1StringEncoding];
}
else{
NSMutableString *temp = [[NSMutableString alloc] initWithData:data encoding:NSISOLatin1StringEncoding];
[xmlResponse appendString:temp];
[temp release];
}
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
[[NSURLCache sharedURLCache] setMemoryCapacity:0];
[[NSURLCache sharedURLCache] setDiskCapacity:0];
[self.delegate connectionDidFinish:self];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{
[self.delegate connectionDidFail:self];
}
And I am calling this connector class's connectToUrl:(NSString*)urlStr withDelegate:(id)theDelegate method as below:
Connector *con = [[Connector alloc] init];
[con connectToUrl:urlStr withDelegate:self];
I am releasing 'con' in connectionDidFinish and connectionDidFail methods of delegate class.
Please suggest a solution for the GeneralBlock-3584 leaks. I have been racking my brains for long.

Answer 1

The leaks have gone away since iOS4.