broadcast

问题 I'm trying to send a udp broadcast, and receive an answer in c#. While sending the broadcast works perfectly, i don't receive any answer in c#. But when i take a look with wireshark, i can see an answer has been sent: Sent from 192.168.0.141 to 192.168.0.255 Sent from 192.168.0.105 to 255.255.255.255 (that would be the answer) Wireshark Log: 1 0.000000 192.168.0.141 192.168.0.255 UDP Source port: 55487 Destination port: 17784 2 0.000851 192.168.0.105 255.255.255.255 UDP Source port: 17784

问题 The variables I share via broadcast are null in the cluster. My application is quite complex, but I have written this small example that works flawlessly when I run it locally, but it fails in the cluster: package com.gonzalopezzi.bigdata.bicing import org.apache.spark.broadcast.Broadcast import org.apache.spark.rdd.RDD import org.apache.spark.{SparkContext, SparkConf} object PruebaBroadcast2 extends App { val conf = new SparkConf().setAppName("PruebaBroadcast2") val sc = new SparkContext

问题 The variables I share via broadcast are null in the cluster. My application is quite complex, but I have written this small example that works flawlessly when I run it locally, but it fails in the cluster: package com.gonzalopezzi.bigdata.bicing import org.apache.spark.broadcast.Broadcast import org.apache.spark.rdd.RDD import org.apache.spark.{SparkContext, SparkConf} object PruebaBroadcast2 extends App { val conf = new SparkConf().setAppName("PruebaBroadcast2") val sc = new SparkContext

问题 this is my code for menage a single notification: myActivity.java public class myActivity extends Activity { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.mylayout); cal = Calendar.getInstance(); // it is set to 10.30 cal.set(Calendar.HOUR, 10); cal.set(Calendar.MINUTE, 30); cal.set(Calendar.SECOND, 0); long start = cal.getTimeInMillis(); if(cal.before(Calendar.getInstance())) { start += AlarmManager.INTERVAL_FIFTEEN_MINUTES;

问题 I'm trying to find out whether broadcast messages will be sent to message only windows, i.e. created as: hWnd = CreateWindow(MAKEINTATOM(RegisterClass(&wnd)), NULL, 0, 0, 0, 0, 0, 0, HWND_MESSAGE, hInstance, 0); Thing is that I don't get any broadcast messages to that window... ;) 回答1: Your suspicions are correct. Message-only windows (those created by specifying HWND_MESSAGE for the hwndParent parameter of the CreateWindowEx function) do not receive broadcast notifications: A message-only

问题 How can we updating the View of a Home Screen Widget on the onReceive method of AppWidgetProvider?.I am trying to update the listview of my Home screen widget but it seems that I cant access the listview of my AppWidgetProvider on onReceive method.My problem is when i changes in my application and come back to the home screen that the widget has no modification.Here is a sample code of my onReceive public class WidgetTaskSchedular extends AppWidgetProvider { private final String TAG =

问题 I need to listen to a network broadcast coming over UDP. The datagram contains a j4cDAC_broadcast struct. I have tried following a few tutorials, but they seem to have left a few things out and dont have very detailed explanations, if any. With what I have right now I am getting an error BIND FAILED 10049 and error 10049 indicates that the address is unavailable. The broadcast is coming in on 255.255.255.255:7654. How do I fix this error? This is what I have so far: void test() { WSADATA wsd;

问题 I am trying to make my own broadcasting architecture. In this system i am using Websocket to transfer data since i know it is suitable for continuous data transfer. In my system there is a Host who initiate webcam live broadcast video. I use MediaStreamRecorder.js which record every 5s chunk of video and send to server through websocket as blob array. Server simply recieve and send to the all client who are connected in that Session. When client connected then it receive continuous 5s chunk

问题 We're developing special devices that uses XMPP to talk to each other. A new API i am developing now, should talk to these devices too. The problem i am facing - all these devices are building little groups - for each customer we have... so we will have a chat-room for each group of devices, or, for each of our customer with his bunch of devices ;) But now.. the api should be able to talk to every device that is connected. I don't need a real broadcast-mechanism - in the end, i will send a

问题 I am searching if Java NIO implements broadcast. I need to create a peer that sends messages to other peers, using multicast or broadcast. I was searching in the API 1.6, but I don't find anything in the DatagramChannel class. Thanks in advance. 回答1: NIO2 supports multicast, that's in Java 7. http://javanio.info/filearea/nioserver/WhatsNewNIO2.pdf 回答2: Before NIO2 you have to make use of all kinds of hacks to make a datagram channel join a multicast group. Not sure how they could have left