Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Continually listening multicast receiver

Posted on 2004-08-27
1
206 Views
Last Modified: 2013-12-03
I need to know if it would be OK for a multicast receiver to continually listen for data from a multicast sender.  If so, what would be the best way for me to construct the receiver?  I was thinking of the following way (see pseudocode):

/**********************************/

Create UDP socket
Construct bind structure
Bind to multicast port
Specify multicast group
Join multicast group

While loop begin
    listen and receive data using recvfrom
Continue until told to stop

Close socket when finished

/**********************************/

Is it okay to continually check for data using a while loop or would this cause problems (especially to other multicast receivers)?
And just for your info, I will be programming in C using Winsock.
0
Comment
Question by:jtrades
1 Comment
 
LVL 8

Accepted Solution

by:
mxjijo earned 250 total points
ID: 11917403

   Your basic design would definitly work.
Try to use non-blocking or async recv methods to make it more professional.

>> would this cause problems (especially to other multicast receivers)?
     No. Receiving data on one machine will NOT affect other receivers on the network.
If once a client joins the multicast group, that client will get a copy of the data no matter
whether there are other clients receiving it or not.
0

Featured Post

Free Tool: Postgres Monitoring System

A PHP and Perl based system to collect and display usage statistics from PostgreSQL databases.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article shows a few slightly more advanced techniques for Windows 7 gadget programming, including how to save and restore user settings for your gadget and how to populate the "details" panel that is displayed in the Windows 7 gadget gallery.  …
After several hours of googling I could not gather any information on this topic. There are several ways of controlling the USB port connected to any storage device. The best example of that is by changing the registry value of "HKEY_LOCAL_MACHINE\S…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question