gistfile1.m

  ConnectionDelegate *connectionDelegate = [[[ConnectionDelegate alloc] init] autorelease];
 
  NSURLConnection *connection = [[[NSURLConnection alloc] initWithRequest:request delegate:connectionDelegate startImmediately:NO] autorelease];
  connectionDelegate.connection = connection;
 
  NSRunLoop* runLoop = [NSRunLoop mainRunLoop];
  
  [connection unscheduleFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
  [connection scheduleInRunLoop:runLoop forMode:NSDefaultRunLoopMode];
  [connection start];
  while (![connectionDelegate isDone]) {
    [runLoop runUntilDate:[NSDate dateWithTimeIntervalSinceNow:.3]];
  }
  Response *resp = [Response responseFrom:(NSHTTPURLResponse *)connectionDelegate.response
                 withBody:connectionDelegate.data
                 andError:connectionDelegate.error];