想在非主線程加入NSTimer，要放進Runloop中跑才能執行function

//建立Timer

let timer = NSTimer(timeInterval: self.responseTimeoutInterval, target: self, selector: Selector("responseTimeout:"), userInfo: Int(packet.header.transactionId), repeats: false)

            NSRunLoop.mainRunLoop().addTimer(timer, forMode: NSRunLoopCommonModes)

//接收事件的function

dynamic func responseTimeout(timer: NSTimer) {

        logDebug(TAG, "responseTimeout")

        if let transactionId = timer.userInfo as? Int {

            self.resetResponseTimer(transactionId)

        }

        self.delegate?.onError(NSError(domain: fusionErrorDomain, code: Int(FusionErrorCode.ResponseTimeout.rawValue), userInfo: nil))

        self.socket?.disconnect()

    }