Swift synchronous request

gistfile1.txt

class Request : NSObject {
            func send(url: String, f: (String)-> ()) {
                var request = NSURLRequest(URL: NSURL(string: url)!)
                var response: NSURLResponse?
                var error: NSErrorPointer = nil
                var data = NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: error)
                var reply = NSString(data: data!, encoding: NSUTF8StringEncoding)
                f(reply as! String)
            }
        }
        
        println("start")
        var request = Request()
        request.send("http://linjujia.cn/", f : {(result: String)-> () in
            println(result)
        })
        println("end")