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Questions tagged [polling]

Polling is actively sampling the status of an external device by a client program as a synchronous activity.

Polling is actively sampling the status of an external device by a client program as a synchronous activity.

Reference:

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java swing updating content in frame

I'm currently working on a sample application in java. I haven't really used java for much more than hello world before so please bear with me. I've set my application up so It's polling a mysql database for information. The issue I have now has to…
Adam McMahon
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Linux driver polling?

I'm starting to learn Linux driver development. I am trying to create a simple driver that polls a function which in the end will read a hardware register at a constant rate (i.e. 10 times a second) and adds the hardware output to a queue which can…
Arn
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How can I push data to a browser where the data is based on a SQL statement?

I know there are threads out there on this topic but do seem to answer quite what I am looking for. I have never done any push technology before so some guidance here is appreciated. I understand how when something has changed that that triggers…
Dan
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how to create a wait job in informatica

My requirement is to create a job in informatica which will run for every 15 min and look for a status column in abc table.If it is “Approved” THEN It will exit and kick off the rest of the jobs. If the status is not approved it will not do…
karthik adiga
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An automation script which continuosly presses a button in a website

There are limited slots in my course and I am missing the slots as they are opening for a few minutes in a day which I am missing. Hence I plan to write an automation script which at regular interval presses a button in a website. But I have no…
Kai
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Why is my chat app sometimes not receiving messages?

I'm building a chat web application and using interval polling. However, sometimes the messages sent by client A is not received by client B. This happens like once in 20 messages sent or so. A page refresh on client B would of course, cause the…
John Evans Solachuk
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polling with jboss

I want to deploy a Java application on JBOSS that starts after deploy, writes a text row in a file after every 'X' seconds and stops when JBOSS stops. I know how to create a runnable jar but I've no idea how to create a war file in…
Matteo Codogno
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How to fetch (poll) data periodically from an rss feed

I have a rss feed (xml) that is updated frequently. I need to send notifications to APNS if new update is avaliable on rss feed (xml). So far I know I can parse xml with php and send the result to APNS with my local Apache Server on Mac (MAMP). But…
Mord Fustang
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I2C Communications and polling

I am developing on a HummingBoard Pro (Armbian). I want to talk with a peripheral using I2C. I read the datasheet and found that it provides datastream at the address 0xff. So I wrote a tool that periodically checks if data is available and prints…
Fzza
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short polling versus websockets for short duration requests

So we have a Django backend server that communicates with a large number of 3rd party servers. These 3rd party servers all use socket connections for communication, not HTTP. Each user request to our service will communicate (over a socket) with one…
Marc
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Javascript poller does not start immediately

in my javascript I defined a poller in order to refresh some contents every second. The definition is the following: var poller = { // number of failed requests failed: 0, // starting interval - 1 seconds interval: 1000, //…
ctt_it
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Finding CPU efficiency using polling and interrupt method

I am confused by how to find the efficiency of a cpu given some information from a sample problem. I have been searching the web, but everything I can find is either too advanced for what I need, or doesn't relate exactly. Given that I cannot find…
huSh
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How to find ios phone users that are within 1 mile of me - without polling every user?

We are working on an app with the following requirements: Users will have a Friends list (small subset of users) User will need to know when a 'Friend' is close to them (aprox < 1 mile) We are currently doing the following: Each User posts there…
ActionFactory
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Sockets, xmpp and polling to node.js - performant and server friendly

i'm building a webapplication and could need some help. The app has got a chat and some news systems. So we have very many writes and need constant update of the information. At the beginning of the project we can't host too many servers because of…
gope153
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How to create a poll on IOS?

hi I’m new to IOS development i have developed only one application in iOS now i want to make a polling app in IOS i Google every where i did’t get a proper solution to make a polling app. In my polling app i want get input poll form the user and…
kumar
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