broadcast

问题 In short, I want ejabberd server to send some messages to a group of user clients. the group of users may change. For example, the server send message to group 1, and then send different message to group 2. In other words, how to make ejabberd server send messages to client? I know how to send message from client to client. 来源： https://stackoverflow.com/questions/30390720/ejabberd-server-broadcast-message

问题 How do you reference a pyspark dataframe when in the execution of an UDF on another dataframe? Here's a dummy example. I am creating two dataframes scores and lastnames , and within each lies a column that is the same across the two dataframes. In the UDF applied on scores , I want to filter on lastnames and return a string found in lastname . from pyspark import SparkContext from pyspark import SparkConf from pyspark.sql import SQLContext from pyspark.sql.types import * sc = SparkContext(

问题 How do you reference a pyspark dataframe when in the execution of an UDF on another dataframe? Here's a dummy example. I am creating two dataframes scores and lastnames , and within each lies a column that is the same across the two dataframes. In the UDF applied on scores , I want to filter on lastnames and return a string found in lastname . from pyspark import SparkContext from pyspark import SparkConf from pyspark.sql import SQLContext from pyspark.sql.types import * sc = SparkContext(

问题 I am trying to make a set of applications discover each other using UDP and broadcasting messages. The applications will periodically send out an UDP packet saying who they are and what they can do. Initially we only use to broadcast to INADDR_BROADCAST. All applications share the same port to listen to (hence the SO_REUSEADDR). An event kernel object is attached to the socket so we get notified when we can fetch a new packet and use that in a WaitFor loop. The socket is used async. Opening

问题 Now my task is to rewrite $exceptionHandler provider so that it will output modal dialog with message and stop default event. What I do: in project init I use method .provider: .provider('$exceptionHandler', function(){ //and here I would like to have rootScope to make event broadcast }) standart inject method does not work. UPD : sandbox - http://jsfiddle.net/STEVER/PYpdM/ 回答1: You can inject the injector and lookup the $rootScope. Demo plunkr: http://plnkr.co/edit/0hpTkXx5WkvKN3Wn5EmY?p

问题 When calling MPI_BCAST, is there any implied synchronization? For example, if the sender process were to get to the MPI_BCAST before others could it do the BCAST and then continue without any acknowledgements? Some recent tests with code like: program test include 'mpif.h' integer ierr, tid, tmp call MPI_INIT(ierr) call MPI_COMM_RANK(MPI_COMM_WORLD, tid, ierr) tmp = tid if(tid.eq.0) then call MPI_BCAST(tmp,1,MPI_INTEGER,MPI_ROOT,MPI_COMM_WORLD, ierr) else endif write(*,*) tid,'done' call MPI

问题 I'm developing an app that uses wifi to broadcast UDP messages between all the mobiles that are in the same network that have my app. I managed to send/receive packets from many cellphones having an external AP, that's my router. But given the case that there's no AP, I want users to be able to use their phone's Wifi Hotspot feature so they can still use my aplication. So one of the cellphones would be the wifi hotspot, and all the others would connect to that. I require users to connect to a

问题 I would be glad for some input on the following implementation of a BroadcastCopyBlock in TPL Dataflow, which copies a received message to all consumers, that registered to the BroadcastCopyBlock and guarantees delivery to all consumers, which are linked to the block at the time it receives the message. (Unlike the BroadcastBlock which does not guarntee delivery of messages, if the next one comes in, before the former message has been delivered to all consumers). My main concern is the

问题 I am using the broadcaster class to listen to sms messages using this code package com.escortme.basic; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.telephony.SmsMessage; import android.widget.Toast; public class SMSReceiverActivity extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { // Parse the SMS. Bundle bundle = intent.getExtras(); SmsMessage[]

问题 What I want: I want to be the first to receive the Sms Broadcast and I want to cancel the broadcast if SMS is of my interest only, so that The broadcast doesn't reach any other app/receiver (Default messaging app etc.). What I know is: SmsDisptacher.java uses orderedBroadcasts that can be can canceled/aborted. What I don't know is: If orderedBrodcasts can be canceled for other apps/receivers i.e other than yourself. what I have tried for being the first to receive the Broadcast: intent-filter