NSOperation runloop

-(void) main
{
	NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];

	// initialize request

	NSURLConnection* theConnection = [ NSURLConnection connectionWithRequest: request delegate: self];
	[theConnection start];

	while(!finished) {
		[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
	}

	if(self.success) {
		// process the data
	}
}